Language Evolution and Syntactic Theory Essay Example | Topics and Well Written Essays - 8500 words

Language Evolution and Syntactic Theory - Essay Example Category one and two combine when considering that the "universal characteristics of language may be so because they are aspects that make it more easily acquirable."2 The evolutionary nature of language is a new category of investigation that attempts to determine what occurred in our ancestral lineage that gave rise to a form of communication that is distinct from other species. This category involves genetics, paleontology, and archaeology. However, whereas these studies benefit from a rich fossil record, evolutionary linguistics suffers from a lack of evidence. To overcome these shortcomings, linguists often make use of studies in the four categories already discussed. However, Kinsella's research is unique in that it will not rely on the four categories. Instead, she utilizes evidence from evolutionary studies that will shed a critical light on the theory of linguistics. The essential argument Kinsella makes is that this research is a step in developing a more unified theory of linguistics. This is much like psycholinguistics or neurolinguistics before it, which incorporate diverse disciplines in founding new conclusions. Kinsella frames the current discussion on language within syntactic theory. She criticizes these theories for relying on theories that are based only in linguistics and don't incorporate multi-disciplinary perspectives in their analysis. She contends that syntactic theory needs to be critiqued not merely as a means of recording observable data. In addition, syntactic theory must also be critiqued as a theory of language that must be consistent with theories in other fields. While she acknowledges that there are many competing syntactic theories, the research focuses on the Minimalist Program and contrasts it with theories in evolutionary biology to test its validity. It's notable that the analysis focuses the validity of the linguistic side and not the biological side. This seems to be due to the foundational role evolutionary biology plays in the Minimalist Program. Also, there is a continued view of linguistic philosophy as a 'soft' science. Kinsella is vague in distinguishing the exact specifications of the Minimalist Program. She writes that, "...syntactic theory tells usthat the grammatical structure of language is the mediator between signal and meaning"3 and references Chomsky as privileging the internal aspects of language over the external. While she discusses the MP's emphasis on creativity within syntactic structures, it seems that she is ultimately positioning it as a strongly internal theory of languag

Review of Enrique Penalosa's Speech Movie Example | Topics and Well Written Essays - 1000 words

Of Enrique Penalosa's Speech - Movie Review Example According to United States Census Bureau the current population of 322 million will shoot up to 438 by year 2050.This indicates also the number of people per household will also be more. New homes and cities will be required to be build but the question is where and how. Can we build a transport system without knowing what kind of city we want? The answer to the question is building a city will depend on what kind of life we want and what kind of life will make us happier. A city defines our way of life. In building, a new city equality for the quality of life especially for children and equality for all citizens is important. An example is a bus with 80 passengers as the right of space 80 times than a car with one passenger. Democracy means such laws are obeyed but sometime injustice happens before our face for example a traffic jam with no exclusive lane for buses.in the world public pedestrians is pace is the only that we all have free access to. A good city is where people like to be out in public space and enjoy themselves. Cities are more architectural than engineering thus, people enjoy more public space in the city. A good city is where people have contact with water, nature and trees. A good city should have space for use by children, elder ly and disabled people. People should walk in a good city without fear of being hit by cars especially children. When cars appeared they started killing people and many city dwellers where forced to migrate to the suburbs. Cars took the space used by people; there was a competition of space between cars, and people. There should be enough space for people to walk and for cars to drive. Sidewalks should be used by people e.g. Walking, kissing, admiring the surroundings but not for cars to park. Sidewalks should proceed after intersections. A city belongs to people and not cars. Netherlands has a

History Of Programming Languages Information Technology Essay

History Of Programming Languages Information Technology Essay Ford states that computers can only obey instructions that are issued to them.   In order for the instructions to be understood by both user and the computer there needs to be an interface to aid in the communication. This is where computer programming languages come in their primary function   is to aid the communication between the computer and the user. They provide a link between the human language and the machine language.   There is a huge variety of programming languages and each language has its own set of strengths and weaknesses and is geared with specific applications. Even though there is a huge number of computer languages out there today, computer languages are a fairly new field, since the first high-level languages were written in the 1950s, around the time computers were invented.   The earliest computers were programmed in binary so the set of instructions was just a series of 0 and 1. The interface back then was low-level language when a computer is given a series of instruction via a program, the computer executes the task and the interface in which the user communicates with the computer can either be a low- level or a high-level language. A high -level language does not communicate directly to the computer. Rather, high level languages is a language with a series of abstractions. Higher level languages allow the programmer to communicate more conveniently to the computer. Programming languages, together with their compilers span the gap between low-level, or binary, instructions that helps the machine understand and the high level languages, which allows the programmer to be more expressive. In software development, the programming language must be compatible with the design methodology at the design stage of software development. A facility is viewed as consisting of tools and methodologies and these should be compatible for maximum benefits. It is necessary to examine the relationship of the programming language to other components of a software development facility the first programming languages were designed for programming rather than for software development. However, even if a language was not designed with the goal of software production in mind, it must be evaluated on that criterion because that is the desired end. As a result, the software development process has imposed language design goals. First, reliability users should feel comfortable in using the programming language even in the presence of infrequent of undesirable events like hardware or software failures. This is also linked to correctness software is correct if it behaves according to its specifications the more rigorously and unambiguously the specifications are set down, the more convincingly program correctness can be proved. Reliability consists of readability, writability in the language and the ability to deal with exceptions, or so that the system is predictable even in abnormal situation. Second, maintainability software costs have risen and increasingly complex software systems have been developed, so economic considerations have reduced the possibility of throwing away existing software and developing similar applications from scratch. Existing software must be modified to meet new requirements. Examples of a language being modifiable is Modifiable examples are allowing constants to be given symbolic names, or just altering something in one line of the program to be changed and implemented in many other places in the program.Third, efficiency always a goal for the execution of any software system, and affects both the programming language and the choice of algorithms to be used.Efficiency is no longer measured by the execution of speed and space. The initial effort required to produce a program and the effort required in maintenance are also components of efficiency. Language supports efficiency if it has qualities of writability, maintainability, and optimizability. Optimizability is the quality of allowing automatic program optimization. This is important because a lot of the time traditionally spent in programming is spent on trying to find an efficient way of doing things. This should be removed from the early stages of the programming. So a developer should first write a program that is demonstrably correct, th en through a series of efficiency improving transformations, modify the program to obtain a correct and efficient one. Generally, features that promote optimizability hamper readability.These three goals can be achieved by appropriate tools and should be the certain characteristics of the programming language. Technically speaking, users use two sets of commands when they program on a modern computer; one for the operating system and one for the programming language. The operating system is basically a program which is loaded each time the computer is turned on and provides the set of instructions for the programmer to control operations in the computer. These operations include logging in, loading files, displaying information, and running a program. The operating system program provides the facilities to allow communication between the user and the computer to be initiated and continued. A translation program is needed to convert a programming language to translate a higher level programming language to the executable machine code so that the computer processor may understand. The two means of translating higher level languages are by compilers and interpreters. Compilers take the source code of the higher level programming language and converts it into object code (the 1s and 0s). This converts the entire program in one go and then resaves it in its converted form.   he translated object code is then linked and run. One of the advantages of using a compiler is that there are no errors in the syntax when the program is run since it would have shown up earlier at the translation stage. However, a compiler requires space to accommodate both the source and object files. On the other hand, interpreters look at the program statement by statement and translate and execute the single statement before going on to the next. This means that translation and the execution happ en simultaneously, not separately as with the compiler. The main advantage of the interpreter is that it is more effective in   debugging programs. However, interpreters suffer from poor execution speeds than compilers since each line has to be translated and executed, whereas the compilers translates it all at once. Programs, on the other hand,   have been around since the first computing device. The oldest artificial computing device, other than the abacus, is the Blaise Pascal/s Arithmetic Machine. Before computer programming languages were made, paper tapes and punch cards which held complicated weaving patterns for the loom Tabulating Machine Company Looms by Jacquard in 1710. A century   later, Charles Babbage starting building a computing machine and the Analytical Machine. In the 20th century, Herman Hollerith founded the Tabulating Machine a while later. His machine Tabulators were used to speed up the counting and sorting punch cards. In the early 1940s J. Presper Eckert and John W. Mauchly started building the ENIAC (Electronic Numerical Integrator and Calculator), which was completed in 1946. Around the same time, near the end of World War II, Konrad Zuse began building his second generation electromechanical computers in Germany. After Zuse successfully completed building his com puter in 1945, he realized that he had no additional equipment for repairs or any kind of hardware development. He then turned his focus from hardware toward designing programming languages. Zuse is often referred to as the father of todays computer programming due to his contribution to the first programing language which was powerful enough to be able to express sophisticated programs. History of Programming Languages Software development process originally consisted only of the coding phase. The computer was mainly used in the early days in scientific applications an application was programmed by one person. The problem to be solved, like a differential equation, was well-understood. There was not much need for requirements analysis or design specification or even maintenance. The first programmable computers only spoke machine language, which is well known to be unreadable and tedious to work with. After, programming languages evolved to assembly languages which quickly became popular and   lot easier to work with. A disadvantage is that the assembly language is very limited since it only provides facilities already in the machine code. The assembly language gives the programmer access to the machine code instructions and the macros. The macros offers a single instruction to give a combination a combination of several machine code instructions and provide common requirements.   The introduction of assembly language in the 1950s paved the way and provided the key to later productions of of high level computer programming languages.The machine code and the assembly language are typically known as low-level languages. Assembly language offers the programmer the advantage of being able to specify where the programmer wants to allocate where the memory and data will start. This relieves some responsibility of the programmer to keep careful control over the memory. High level languages, on the other hand, take all responsibility away from the programmer. Rather, the use of variable names allow the programmer to reference particular parts of a program.   When computers were first electronically created, the limitations from the hardware forced programmers to write programs that directly communicated with the computers machine code. This was the assembly language. The assembly language implemented the symbols and number representations from the machine codes. Working with assembly languages was a very tedious and inefficient task. Assemblers created object code, or a system of instructions that executed directly by the computers central processing unit (CPU). An advantage to writing a program in the assembly language was the that it took less time to execute since it was a direct execution from the CPU. However, there were many disadvantages of writing programs in the assembly languages. Assembly language   associated the machine-language code to symbolic representations in the human language. This was one of the reasons why, it was so tedious to program with the assembly language. A programmer needed to be highly skilled and famili ar with assembly language to communicate with the assembly code. Additionally, written programs in assembly language were very prone to errors.   The assembly languages are often referred to low-level languages since it execute directly from the CPU. In order to solve this problem, a high-level programming language was created with a set of instructions more closely associated to the human language.   FORTRAN The very first high-level programming language was FORTRAN, which stands for FORmula TRANslation , It was developed in 1956 (first manual appeared in 1956, but first developed in 1954) by John Backus, a worker at IBM.  FORTRANs goal was to ease the pain of writing in assembly language.  When FORTRAN was first introduced, it was looked on suspiciously since almost all the programmers then only worked with the machine code and assembly languages. The programmers at that time had an initial belief that programs compiled from high-level language would be less efficient than those written at low-level. In order to persuade potential users of the benefits of working with a high-level language, Backus designed an excellent compiler for FORTRAN so the programs were just as efficient as those written in low-level languages. This was the best compiler for many years.   Ã‚   FORTRAN soon became popular because it provided a realistic and desirable alternatives to low-level language programming for mathematical and scientific applications. This programming language was also the first to be widely used. However, one of the limitations of FORTRAN was that it was specifically oriented toward the IBM 704 machine. This is a major set-back since the language syntax contains many idiosyncrasies from the IBM 704 machine.  From a pure programming language design standpoint this is a cardinal sin but historically, it is understandable. FORTRAN is known for its efficiency. Over the years, FORTRAN had been upgraded and developed into FORTRAN -II,  FORTRAN -IV,  FORTRAN -66, and  FORTRAN -77. Early versions of FORTRAN largely restricted users. On the other hand, the later versions allowed more flexibility, but since it has adapted, it is not as easy to use as it should be. The development of the fast string processing makes FORTRAN more of a general-purpose la nguage than it used to be, but it is still described as a mathematical or scientific language.   Lisp In contrast to FORTRAN, Lisp was first developed in 1956 as a functional language for list processing. LISP is one of the most used of the old, classical programming languages developed in the 1950s. The design was motivated by the need of Artificial Intelligence researchers for an appropriate language. But gradually replaced or challenged in AI applications by Prolog. There are very few  language  constraints in LISP.   Lists are the sole data structure and the only operations are function invocations, conditional expressions and recursion. Iteration is achieved by  recursion. Lisp is one of the very few functional as opposed to procedural programming languages.  A procedural language requires the user to express each step in performing an action whereas a functional language merely specifies what has been done.   Cobol Another first generation computer program language that impacted the design of recent languages was Cobol (COmmon Business Oriented Language). Cobol was created by Grace Hopper in 1960 and was heavily supported by the U.S. government. Cobol was originally designed to be the common business language in the nation. The design of Cobol was discussed in the pentagon with 6 computer manufacturers.   This maybe why the language is still in use even though it is very wordy and lacking in logical modules resulting in a unique English-like style that some have described as verbose. One of the advantages of   Cobol is is certain applications involving processing dollars and cents. Other advancements in Cobol include the character string data. Cobol is generally used globally in the government and military. Overall, Cobol was, and is still important because of its use for business applications. The first three high level languages mentioned FORTRAN, LISP, and COBOL were and still widely used, or have descendants that are widely used. These languages, with their diverse purposes, set the foundation for most of todays programming languages. BASIC Once the use of high-level languages became more widespread, programmers wanted to create   a programming language that would serve as an easy introduction to FORTRAN.   As a result, BASIC was designed by Thomas Kurtz and John Kemeny   at Dartmouth College in 1963-1964 as an easy and interactive language. However, now BASIC (Beginners All Purpose Symbolic Instruction Code) is the most used language on microcomputers.The main purpose was to be a simple introduction which would prepare students to use FORTRAN later. BASIC was easier to program and had a user-friendly syntax than FORTRAN. The only aspect in which FORTRAN is better than BASIC is that it FORTRAN has more advanced features. BASIC is a general purpose language.Since the earliest use of BASIC was in education, the original language was fairly primitive and had only single variable names. However, people discovered that BASIC could be used as an applications programming language.   Interestingly enough, BASIC was not very popular when it first came out. However, microcomputers adopted BASIC as the preferred language since it was an interpretive language. Also, BASIC, in new forms, is still widely used. For example, BASIC is the foundation and large influence for languages like Microsoft Visual Basic and the object-oriented language Visual Basic .NET. Algol-60   Many other programs sprang up to improve the FORTRAN language. Algol-60 was created in  1958 as an improvement of FORTRAN . Then it was then redesigned, improved, and the final report was published in 1960. The key features of Algol-60 are that the syntax and the semantics are more orthogonal and that the language syntax is defined formally. This language is one of the most ingenious language definition efforts in the early days of programming languages, but never received widespread acceptance. The main language innovations are that Algol implemented a nested block structure, where code sequences and their associated declarations could be grouped into blocks without the need to be separate, explicitly named procedures. Also, Algol featured lexical scoping where a block can consist of private variables, procedures and functions but is invisible to code outside of the block, which is mainly information hiding. It is argued that Algol 60 is an obvious milestone to the development of programming languages because of its introduction of key concepts and its first use of formal notation for syntax. A large portion of the theoretical, practical and compiler work since Algols introduction has used Algol as the foundation. The main flaws, however, were the omission of IO and to a lesser degree the costly parameter passing method By Name. There are many improvements to the Algol-60 such as the Algo-W which was designed in the mid 1960s. Algol-W is very closely related to the Algol-60 even though they are not compatible with each other. The greatest difference between the Algol-W and the Algol-60 was that parameters no longer passes by name and that the For Statement was redesigned. The next three programming languages Pascal, C and Prolog, developed in 1970 and 1972 respectively, are some of the key languages of the period of a boom of programming languages, though C and Prolog spawned meaningful descendant languages. Most importantly, this period was when language paradigms, or certain styles were created. The paradigms are object-oriented programming, imperative programming, logic programming, and functional programming, and some may add the concurrent and database paradigms. This period of programming development also spurred the great goto and structured programming debate where structured programming forced structure on the programmer in language development. However, there is a general consensus that the goto statement should not be used because it has the potential of making programs hard to read because a user will have to jump around in a program to search for all the targets of goto statements and the existence of goto statements complicates automat ic optimization. Pascal One of the largest criticisms with the early computer programming languages were that it was not portable. Languages like BASIC was non-standard in nature. BASIC programs written in one system   often had to be completely rewritten for another make of a computer. To solve this problem, Pascal was designed between 1968 and 1970 by Niklaus Wirth of Zurich. Pascal was strongly influenced by Algo-w, a close relative to Algo-60. Pascal was intended as a teaching tool for illustrating the proper design data structures and structured statements. One of the greatest advantages in Pascal is its portability. Unlike FORTRAN and BASIC, Pascal has a self-compiler which allows programs in Pascal to be moved from different systems. Additionally, Pascal was so well-suited for compiler writing that the CDC-660 compiler could translate the whole compiler in a few seconds. Pascal is also a well structured language because it allows a series of statement to be grouped together,   their programs are made to be very readable,   and they have a provision of versatile procedure and function facilities. Mayer (1988) states that Pascal is a too good a language for the modest aim for which it was invented (p. 10). The greatest limitations however, was that it was not designed with a specific area of application in mind. Therefore, Pascal is more of a general purpose language but lacks special features for particular application. C The programming language C was created by Dennis Ritchie in 1972. It is a general-purpose, not very high level language and   mainly used as the systems language for the operating system UNIX. The chief design goal of C was to be a tool for working programmers, and therefore useful. C is a very popular language for the development of applications since it is flexible, convenient, powerful, efficient, and portable. Since it is a modern language, C provides the comprehensive range of control structures needed to allow well-structured programs to be written. C does not behave like a typical high level language because it offers features similar to low level languages since it is very similar to the source code. Basically, C is a systems language that features low level access with high level operators. Prolog Prolog is a non-procedural language with a focus on logic programming. In a Prolog program, it is not only necessary to express how a problem is to be solved but its not even possible to express this. The programmer specifies only what has to be done and Prolog does the rest the program requires a data base of facts or knowledge the programmer will ask questions and Prolog responds with the list of all possible correct answers that are inferred from the data base of facts. Prologs clauses for establishing the data base can be executed in any order they can be run in parallel. As a result, Pascal became a natural candidate as the systems language on the Japanese fifth generation supercomputers, or inference engines because Pascal achieves considerable speed even though a typical, single Prolog operation consumes a lot of processor time. In general, Pascals main use was for general and educational purpose and supported structured programming. The next two programs, in particular Ada, reflect the period of language design where scaling up to large systems was big with the use of modules which also increased the use of generics, or generic programming constructs, which are parameterized modules. Also, the reduced instruction set computer (RISC) movement gave rise gearing hardware design from assembly programmers and for compilers resulting in more focus in compilation technology for high level programming languages. Ada In the 1980s additional computer program languages were created to match with the speed and efficiency advancement of the computer. In  1983   after almost a decade of careful study of previous errors in programming language design – promising  Ada  introduced. Ada was expected by some in the computer science field to be the first language with the potential of becoming the universal, almost exclusive language of the future for embedded systems. The focus of the design of Ada was driven by the U.S. Department of Defense, who wanted a program that would reduce the number of military standard languages.  Ada had  the unique advantage of having been defined as an American National Standard before any implementation became available, saving it from a proliferation of corrupted language versions.   Ada  incorporates Pascals best ideas and corrected errors and omissions and has a much wider range of applications than Pascal   also  Ada  is strongly typed.  Ad as  problems are that IO is not defined as part of the language etc. In general, Adas intended purpose was to be a general purpose, real-time language with embedded applications. C ++ Another computer program language that object-oriented and systems programming designed int he 1980s is C++. C++ was unique in that it tried to mix in the high-level language features with low-level language features, making it a medium-level language. C++ was created by Bjarne Stroustrup in 1979 originally as C with Classes. In 1983, the name was changed to C ++. C++ is one of the most popular languages ever created and is widely used in the software industry. C++ is based off of C and it even compatible with C. The improvements of C++ from C is the addition of classes, exception handling, virtual functions, operator overloading, user-controlled free-store memory control, and improved type checking. Stroustrup designed C ++ as the ideal program to work with software. When  Stroustrup was working in Software Development, he found that the program Simula had very useful features, but the program was too slow to use. Heavily influenced by Simula, he based his improvements of C on fea tures in Simula and combined it with the speed and efficiency of C. However, there are some major criticisms of C++. Critics argue that C++ is too complicated. The language definition document of C ++ is almost three times as long as the language definition of C. Other drawbacks of C++ are that there are no features that create multi-threaded software and lacks a garbage collection. JAVA JAVA was created to simplify C ++ and was created due to the rise of the Web. JAVA was developed by James Gosling in 1991, and released in 1995. JAVA s syntax is heavily derived from C ++, but has a much simpler object model and has less low-level facilities.   Ã‚  The five goals of JAVA are: 1) Simple, object oriented, and familiar 2) Secure 3) Architecture neutral and portable 4) High performance 5) Interpreted, threaded, and dynamic.   In contrast to C ++, JAVA is  object-oriented, platform-independent, multi-threaded.   JAVA is used as a foundation of Web, network services, applications, and many embedded devices in addition to the programming language HTML. Another feature of JAVA is that it allows programmers to write software on one platform, also know as the hardware architecture, and run it on another platform. Overall, JAVA meets most its goals, it is familiar since it is closely related to C++ and its platform allows for JAVAs programs to be portable. It has features that are lacking in C ++ such as an automatic garbage collector to manage the Internet. One of the major drawbacks of JAVA, however, is that its run time is a bit slow. Also, the majority of JAVA is opened sourced. JAVA is one of the many new languages that appeared in the 1990s in response to the boom of the Internet. All the developed languages of this time were object-oriented languages. Other languages introduced at this time were PHP a nd Python. Convergence some languages may reach a dead end. The evolution of languages is convergence the space of possibilities is smaller and partly because mutations are not random language designers deliberately incorporate ideas from other languages. Current Issues with Programming Languages With the growing open source community, almost anyone can develop a programming language. However, this poses several problems. Graham explains that this may result in a type of developed language called top-heavy, which is a language with a poorly designed inner core but has very powerful libraries of code to solve for specific problems so the libraries are vastly more important than the core language. Also, Bjarne Stroustrup, the inventor of C++, points out some of the current issues with modern programming languages and software development. These days, average pieces of code have poor structure and programmers clearly dont think deeply about correctness, algorithms, data structures or maintainability. He said that today, most people dont actually read code. Developers concentrate on getting the job done by excessively using brute force and testing, though these are usually not enough. They become skilled in building reliable systems out of unreliable parts, and somehow, the syst em shapes into something minimally acceptable, even though the developers dont know how or why. The issue here is that developers need to pursue more correct, solid and secure systems instead of going the cheapest and fastest route that contain a lot of bugs. Today, developers are undereducated and under trained.   Programming languages should not be more complex than necessary, but they should not be decreased in level of expressiveness to serve people who can hardly understand the real problem to be solved and the concepts. Another issue is that it is difficult to implement incremental change directly related to real-world systems in academia. Theory and practice rarely meet researchers gear away from real-world software development to academic topics, and many developers ignore research results. If this could change, then possibly Stroustrups criticisms of todays development could change so that developers are more educated and develop more correct, maintainable and efficient code. More specifically, a current issue with programming languages is security and reliability. There are mechanisms being developed and implemented to add safety to languages like extended static checking, information flow control and static thread safety. A program is considered thread safe if it functions correctly during simultaneous execution by multiple threads so that there is no unwanted interaction between threads. Type safety and access control are also    Why are there so many programming languages? There are more than 8,500 total programming languages, according to HOPL (History Of Programming Languages). As demonstrated previously, the many thousand programming languages developed over the years is a result of the growing number of applications and uses for languages and also updated and revised versions of existing programming languages. Over the past years, more and more programming languages have been developed for application in different areas like nuclear power plants or patient monitoring systems, etc. Also, more and more programming languages have been developed for users with little or no computer background. Most programming languages, as mentioned before, are descendants of already existing ones (more economically feasible than creating new languages). One may argue that there is a self-perpetuating cycle that leads to the development of programming languages. Developers notice shortcomings in using their current programming language, make a list of the current annoyances and they look for a new, little known language that has a lot fewer of these annoyance. Then, the developers will drive the development   of the new language by contributing code, writing powerful libraries and spreading the word of their newly developed language so that it is implemented in their workplace and then after a while, these developers will notice shortcomings in their current programming language leading into the cycle. However, even though a newly developed programming language gets rid of shortcomings of its ancestor language, new shortcomings arise. To answer the question of why there are so many languages, computer scientists have explained the concept of a programming languages and their uses in analogies. A programming language can be seen as a tool like a certain type of saw or screwdriver that is specially designed and used for certain situations and problems. However, there are also overlaps in ways that some programming languages have many similarities or may be descendants of others. Certain classes of problems require, or can be solved more effectively with certain languages. In addition, each language can be seen as a form of expression programmers find certain languages easier to use or understand as their own unique way of expression. Paul Graham describes the notion of a programming language renaissance. Until the 1980s, only professors or corporate researchers had the ability to develop programming languages because their institutions had the financial means t

Spread of a Cellular Phone :: science

Spread of a Cellular Phone Why did the cellular phone that I was a success which there must be spread now to this place? And would it really do our life wealthily? Finaly, I want to think about society influence by diffusion of a cellular phone . I will want to think about the answer by this sentence while comparing a cellular phone with an old rigid telephone. Primarily I try to think about the effectiveness of a cellular phone. The greatest advantage of a cellular phone telephones it anywhere any time, and it is to be able to receive a telephone. I telephone it so long as there is not you before a telephone by a traditional rigid telephone and cannot receive a telephone. It is for an owner of a telephone to almost leave the next advantage to a receiver surely. A family and the other party understanding the partner who appears than the state that I do not understand who appears among employees of a company as a traditional rigid telephone are easy to hang a telephone much much. These two effectiveness would affect the spread of a cellular phone greatly. As for the instant information nature of a cellular phone, I always very think with an advantage in life controlled by the information that continues changing by a minute unit of an advanced information-oriented society. I want to think with a cellular phone next whether our life became really rich. It is surely easy for a cellular phone to contact you for 24 hours, but it is it in the thing that any kind of time is always restricted to tell the reverse by a company and society. When this goes along, a holiday in pure meaning disappears and does not bear it any longer and must let it is work, and a head trouble. If it is it, you may consider it to be good when I do not want to arrive if I drop a power supply. However, may you drop a power supply as expected if it is generated that anything is serious while you drop a power supply of a cellular phone and thought that it may produce it to a company to be a loss? While primarily it thinks about a thing of a company, and you promise the loyalty to a company, it will be absolutely impossible to do it. Spread of a Cellular Phone :: science Spread of a Cellular Phone Why did the cellular phone that I was a success which there must be spread now to this place? And would it really do our life wealthily? Finaly, I want to think about society influence by diffusion of a cellular phone . I will want to think about the answer by this sentence while comparing a cellular phone with an old rigid telephone. Primarily I try to think about the effectiveness of a cellular phone. The greatest advantage of a cellular phone telephones it anywhere any time, and it is to be able to receive a telephone. I telephone it so long as there is not you before a telephone by a traditional rigid telephone and cannot receive a telephone. It is for an owner of a telephone to almost leave the next advantage to a receiver surely. A family and the other party understanding the partner who appears than the state that I do not understand who appears among employees of a company as a traditional rigid telephone are easy to hang a telephone much much. These two effectiveness would affect the spread of a cellular phone greatly. As for the instant information nature of a cellular phone, I always very think with an advantage in life controlled by the information that continues changing by a minute unit of an advanced information-oriented society. I want to think with a cellular phone next whether our life became really rich. It is surely easy for a cellular phone to contact you for 24 hours, but it is it in the thing that any kind of time is always restricted to tell the reverse by a company and society. When this goes along, a holiday in pure meaning disappears and does not bear it any longer and must let it is work, and a head trouble. If it is it, you may consider it to be good when I do not want to arrive if I drop a power supply. However, may you drop a power supply as expected if it is generated that anything is serious while you drop a power supply of a cellular phone and thought that it may produce it to a company to be a loss? While primarily it thinks about a thing of a company, and you promise the loyalty to a company, it will be absolutely impossible to do it.

Huckleberry Finn: Hypocrisy in “Civilized” Society Essay

The Adventures of Huckleberry Finn, a sequel to the Adventures of Tom Sawyer by Mark Twain illustrates the Southern states and slavery. Published in 1884, the novel focuses on the important issues that affected America. These issues included racism, slavery, civilization and greed. The book has become one of the most controversial books ever written. The controversy has grown to the point that the novel became banned in several states due to its racial and slavery context. Various symbols, quotes and events have been used in the novel to show hypocrisy in the civilized society in the novel. Hypocrisy in the civilized society is chosen by the recognized rules and regulations by the society. The regulations and rules disregard reason since they favor a particular group and at the same time obtain unfairness against other groups. One example that illustrates the hypocrisy in the civilized society is the instance where the judge who arrives in the town, who is apparently new, allows Huck ’s father Pap to gain custody over Huck (Twain, 25). In the same instance, Jim, a fugitive slave, does not receive custody over his children under the same legal system. Hypocrisy and ridiculousness is indicated when the judge awards custody of Huck over Pap regardless of the danger that Pap, who is a drunk, is to his son. However, the judge awards custody to Pap based on his position as Huck’s biological father. However, the same law does not apply to Jim who does not gain custody of his children despite him being the biological father of his children. Another example that illustrates the hypocrisy in the civilized society in the novel is the feud between Grangerford and Shepardson. The dispute between the Grangerford and Shepardson families is based on reasons that are worthless to both of them. However, both families engage in violent murders of the family members in an effort to maintain family honor. The families are deemed extremely educated and civilized. The reason that led to the dispute between the two families resulte d from the elopement of Sophia Grangerford, Buck Grangerford’s sister and Harney Shepardson. However, the families have always been in a dispute that has lasted for 30 years for reasons that are unsure. The two families after learning of the elopement bring weapons to church. However, both families, using their guns, kill their family members at the growth of the feud. Regardless of the families’ civilized status, hypocrisy is shown where both families kill each other over a meaningless feud. Another example that indicates hypocrisy in the civilized society in the novel is the biased punishment of crimes according to the society’s rules and regulations. This is shown by the non-judgment of the Duke and the King regardless of the fraudulent schemes that both con artists involved in the community. Huck and Jim rescue the Duke and the King and offer them their raft. The first scheme begins when both criminals present fake identities to Huck and Jim. The Duke introduces himself as the English Duke’s son, also known as the Duke of Bridgewater whereas the King presents himself as the Lost Dauphin as well as Louis XVI’s son and France’s designated King (Twain, 144-145). Additionally, one of the con artists, the Duke, takes advantage of Jim’s race and position as a runway slave and prints leaflets that offer $200 reward to any person that manages to catch the runaway slave. The Duke is able to do this by occupying an abandoned printing shop in which he was able to print the handouts (Twain, 156). The con artists use the tactic as a way of buying them time and unrestricted travel for a day. However, most of these crimes that the two commits go unpunished regardless of the statement that the society is civilized and enlightened. The Adventures of Huckleberry Finn is a controversial novel that includes the racial prejudices that characterized conventional America during the civil war. Regardless of the novel narrating a fictional story on actual events, the novel also highlights the current issues that affect the present society. The issues of slavery and racism are still obvious in the world today. Works Cited Twain, Mark. Adventures of Huckleberry Finn. New York: Random House, 1996. Print.

The Snow Man by Wallace Stevens

Afterlife: the complete emptiness Wallace Stevens (1879–1955) wrote most of his poems during the world wars period, which took the lives of millions of people. As a result, Wallace Stevens started to question the importance of religion in the modern era, and felt that you should enjoy your life in the present and not waste time living for an afterlife. In his poem â€Å"The Snow Man†, Stevens describes a harsh winter environment creating a unique dramatic situation through an effective imagery. He leads the reader from a relatively objective description of a winter scene to a subjective emotional response. Roberts Pack’s essay on â€Å"The Snow Man† discusses the idea of perception, while David Perkins while focuses on the relationship between imagination and reality through the perspective of the snow man. Is Wallace Steven concerned with imagination and reality, or perception? In â€Å"The Snow Man†, the atypical syntax and logic of the poem, as well as the usage of imagery, compels the reader to perceive the poem from an untraditional in order to both understand the role of nature and realize its very theme is death. The title of the poem â€Å"The Snow Man† is very confusing for the reader. At first we â€Å"visualize balls of snow placed on top of each other, coals for eyes, a carrot nose† as Perkins implies, and don’t see the relation with the poem. But after a few readings we discover the snow man and the listener are one individual. The lines â€Å"One must have a mind of winter† (1. 1) and â€Å"And have been cold a long time†(2. 1) indicate in my opinion the listener is dead. Why so? Winter implies cold, and cold equals death. So if the snow man has a mind of winter, it means he is dead. The snow man is indeed an image to describe this dead body, which is recovered by ice and snow. It is also a symbol of the cycle of life, which always ends with death. Once spring is here, the snow man will melt, it won't last forever. Just like a dead body would decompose, and turn into dust. In fact, we get the sense that we are reading through the listener’s mind. The first thing that is noticeable about the poem is that it is actually just one long, complex sentence, there is no rhyme, and each line has a different length. One question that may arise with is this: if the poem really was meant to imitate the mind's flow of thought, then why did Stevens write it in just one line instead of dividing it into five tercets? Without this specific structure the poem would lose in mood and tone. The dramatic situation is set on a cold and quiet winter day, with very little movement in the surroundings. The poem itself should be the same, gentle and unhurried. This is achieved with the use of pauses after lines and stanzas. Because when someone dies his soul is liberated from the burdens of life. The fourth line of the poem gives it this mood and tone too. It provides a further slowing down with the use of one syllable words, and of assonance with the long â€Å"o† sound â€Å"cold/long†, reinforcing the idea of the time passing and death. We can divide the poem into two distinctive parts. The first part (from the beginning to half of the seventh line â€Å"Of the January sun†), correlates with the dead man losing all sorts of feelings because of the cold. The speaker describes the harshness off the environment surrounding the dead man. The words employed are very particular, achieving nuances which contribute to the vividness of the picture. For instance, the word â€Å"crusted†(1. 3) is used instead of â€Å"covered,† suggesting not only that it covers, but also the snow's firmness and roughness. We can assimilate the snow to the roots of a tree. It is obvious that there is an accumulation of the â€Å"r† sound, as in â€Å"regard,† â€Å"frost,† â€Å"pine-trees†, â€Å"crusted†, â€Å"junipers†, spruces†, â€Å"rough†, â€Å"glitter†, and â€Å"January†, adding vividness to the description. One particular image contained in these lines is that of the â€Å"distant glitter/ of the January sun† (2. 3/3. 1). The use of the sound â€Å"i† in assonance, support the idea that the sun is so distant, it has no effect. The enjambment and the separation of the phrase â€Å"of the January sun† into the next stanza, also relates this idea of distance. So even if the sun is visible in the sky, it doesn’t play its true role: provide heat. The speaker is almost saying he prefers darkness. The dead man losing his mind is the main subject of the second part (from and â€Å"not to think† to the end). The listener considers his self a snow man, enabling him to view the world through different eyes, and thus enables him to see the vivid little details of the scene, which he would not normally see. The dead man is leaving behind his own mind and assuming the snow man’s mind, liberating him from any sufferance. This idea is supported by the word â€Å"think†, emphasized by the enjambment â€Å"and not to think / of any misery†(3. -2). Therefore, it is clear these lines aim to appeal to the reader's sense of hearing. It contains multiple instances of the word â€Å"sound,† as well as the words â€Å"listener† and â€Å"listen. † In addition, there also is a prevailing use of the sound â€Å"s† – â€Å"misery,† â€Å"sound,† â€Å"leaves,† †Å"same,† â€Å"listener,† â€Å"listens,† and â€Å"snow†, which mimics the hissing â€Å"sound of the wind†(3. 2). On top of this, it is known that the absence of one sense contributes to the acuteness of another. In this instance, the dead man gives up his sense of sight, and tries listening instead of looking. He is able to hear the normally soft, quiet â€Å"sound the wind†, and â€Å"the sound of a few leaves†(3. 3). I think the speaker addresses the use of sound, because sound tells us a lot about our surroundings even if we don’t use our vision. In our society sound enables us to communicate, and to lose this sense indirectly signifies we are as good dead. Another aspect of this process is the movement from something particular and small to something more vague and vast. The â€Å"boughs of pine-trees,† â€Å"the junipers,† and â€Å"the spruces† disappear to become â€Å"the same bare place†, and â€Å"the sound of a few leaves† becomes â€Å"the sound of the land†. Along the poem, the dead man disregards his self. Slowly he loses his thought (death of the mind) and feelings (death of the body), then his sense’s from sight to hearing are reduced, and finally loses his distinctiveness by assuming the snow man’s mind. And, since the mind of a snow man is lifeless, the listener would ultimately become nothing, as stated in the 14th line â€Å"And, nothing himself†. This idea of â€Å"being nothing† is, given importance by putting the phrase, â€Å"nothing himself† in the middle of the line instead of the beginning or end, and by the repetition of the word â€Å"nothing† in the last two lines. The last line of the poem â€Å"Nothing that is not there and the nothing that is†(5. 3), the longest of it, is given more importance because it holds the key to Steven’s message. The fricative â€Å"th† gives it an echoing sound. The line starts with the word â€Å"behold† (it means to see) due to the use of the enjambment in line 14, which emphasises the message of this particular word. By combining the words â€Å"Behold† and â€Å"nothing†, Stevens is saying the dead man, aka the â€Å"listener†, is just sitting there dead and there is nothing, nothing to think about and nothing to do. Even if the speaker does a concession in by opposing â€Å"is not there† vs â€Å"that is†. The speaker is inducing there is nothing in the afterlife. In conclusion, â€Å"The Snow Man† is a poem about death, and the emptiness of the world. The dead man or the listener gradually loses his body, and then his mind to a snow man. The snow man is an image of the body in this cold environment. By assuming the mind of a snow man, he is condemning himself to disappear physically and mentally. Wrapping it up can be argued Wallace Stevens message is that there is no afterlife and there is no point in believing in religion. It would be interesting to study how Stevens personal and professional life shaped his opinion on religion. Work Cited †¢ Wallace, Stevens. â€Å"The Snow Man†. The Columbia Anthology of American Poetry. Jay Parini. New York. Columbia University Press. Page 310. Print. †¢ Pack Robert. Wallace Stevens: An approach to his poetry and thought. New Brunswick: Rutgers UP, 1958. Copyright  © 1958 by Rutgers, The State University. †¢ Perkins, David. A History of Modern Poetry: From the 1890s to the High Modernist Mode (Cambridge: Harvard U P, 1976), 542-544

Free Essays on The Muslim People

The Muslim People After watching the movie The Empire of Faith, a Muslim documentary, I was not too surprised by it because I have already studied the Muslim religion before. I do have some questions about the beliefs and acts of the Muslim faith. I was also able to come up with thoughts on Islamic ideals and how they alike and different from those of my own faith. I also looked at the Muslim people as a whole and found many traits of their culture that I both agree and disagree with from my own personal perspective. After watching the movie and researching Islam one question that I had was; what would bring Muslims to declare a Muslim holy war or Jihad. To answer this question you must first understand what a Jihad is, it is a war brought on people who have seriously wronged and/or threatened the Muslim people. From what I have learned from the video and also what I knew before, the Islamic faith is extremely deep rooted within its people and it would almost be expected that they would declare war on those who threaten them. What I don’t understand is how they could commit suicide and kill innocent people who have nothing to do with anything against the Muslims. In the video it was this faith that made the Islamic people, followers of Mohammed, war against the people of Mecca who were their religious enemy. In contrast, it was also this faith that held steady the hand of Mohammad and his Islamic followers and stopped them from massacring their already defeated enemy. Most sects of t he Islam are very peaceful and believe that the bombing of the World Trade Center was a horrific and inexcusable act of violence. There are sadly some extremist groups who see these things as necessary to bring down their adversaries. There are many similarities and differences in Islam and Christianity. One of the most important is that both religions believe in one god, they actually believe in the same God as well as Judaism. Another... Free Essays on The Muslim People Free Essays on The Muslim People The Muslim People After watching the movie The Empire of Faith, a Muslim documentary, I was not too surprised by it because I have already studied the Muslim religion before. I do have some questions about the beliefs and acts of the Muslim faith. I was also able to come up with thoughts on Islamic ideals and how they alike and different from those of my own faith. I also looked at the Muslim people as a whole and found many traits of their culture that I both agree and disagree with from my own personal perspective. After watching the movie and researching Islam one question that I had was; what would bring Muslims to declare a Muslim holy war or Jihad. To answer this question you must first understand what a Jihad is, it is a war brought on people who have seriously wronged and/or threatened the Muslim people. From what I have learned from the video and also what I knew before, the Islamic faith is extremely deep rooted within its people and it would almost be expected that they would declare war on those who threaten them. What I don’t understand is how they could commit suicide and kill innocent people who have nothing to do with anything against the Muslims. In the video it was this faith that made the Islamic people, followers of Mohammed, war against the people of Mecca who were their religious enemy. In contrast, it was also this faith that held steady the hand of Mohammad and his Islamic followers and stopped them from massacring their already defeated enemy. Most sects of t he Islam are very peaceful and believe that the bombing of the World Trade Center was a horrific and inexcusable act of violence. There are sadly some extremist groups who see these things as necessary to bring down their adversaries. There are many similarities and differences in Islam and Christianity. One of the most important is that both religions believe in one god, they actually believe in the same God as well as Judaism. Another...

Argumentative Essay on Obesity in America

Argumentative Essay on Obesity in America Obesity is an issue of concern in America and in many other developed countries. This is why it is not uncommon for students in America to be asked to write argumentative essays on obesity in America. It may be stated that one third of the essays composed by students in one way or another concerns the questions of healthy eating and lifestyle, obesity and alike. The Americans are concerned about this issue, that is why the essays writing on obesity may be done by one and the same student several times during his or her academic career. To construct an acceptable argumentative essay, it is necessary to include a claim as the main argument of the essay paper. In addition, you may also include several other arguments to support the claim, as the essay leads the reader towards a logical conclusion the essay is based upon. To come up with a good argumentative essay, you should begin with writing a strong argument that will give the reader a summarized explanation of what the essay is all about. Next, the introduction should be clear to let the readers know the focus of the argument, by stating the problem and letting the reader know the exact problem that needs to be solved. Once you have written about the problem, the main argument should therefore present the best solution to the argument . When writing the introduction for this type of paper, one should let the audience know why the idea in the paper is actually the right one for that paper or for the proposed problem stated in the essay paper. Depending on the length of the paper, the length of the introduction can range from a paragraph for a short essay paper to a few paragraphs if the essay paper is a lengthy one. Once one has determined the main argument of the essay paper, it is time to come up with arguments to support the main argument, and while doing so, it is good that each one of the arguments be split into its own paragraph. When writing this type of paper, there are a number of different arguments that one could use to stress the main points. This will result in a strong argumentative paper that will do more than send the message across to the readers. One could try using inductive reasoning when writing the argument. This will entail using a series of specific examples to lead the reader towards the conclusion one is attempting to reinforce. One could also make use of deductive arguments by using numerous ideas to lead a reader towards the conclusion. You can buy your essay online, written from scratch by academic experts at CustomWritings.com. 100% custom argumentative written essays of high quality guaranteed.

Central Teachings Essay Example for Free (#2)

Central Teachings Essay The central teachings of Islam are oneness of God and of humanity; prophethood and the compass of Islam; human relationship to the divine; belief in the unseen life; and belief in the Last Judgment (Fisher, 2005). Oneness of God and of humanity Islam teaches that there is only one God. This is why the first words spoken to a Muslim infant are the words of the Shahadah – â€Å"la ilaha ill-Allah Muhammad-un Rasulu-llah† (â€Å"There is no god but God, and Muhammad is the Messenger of God†). According to Muslims, God may be called by many names, but all the attributes assigned to those different names only make up the totality of the One God who created the universe. They contend that there must be absolute unity among all men of all races because they were all created by only one God and should therefore be brothers under the same God. Stretching this argument further, Islam maintains that no one race should be considered the chosen race, nor be considered superior than other races. Islam teaches that the individual should be one with God, therefore his or her thoughts and deeds should always be inspired by God. This oneness of God and of humanity was very emphatically expressed by Abu Hashim Madami, an Indian Sufi sage, when he said that â€Å"There is only one thing to be gained in life, and that is to remember God with each breath; and there is only one loss in life, and that is the breath drawn without the remembrance of God† (Fisher. 2005). Prophethood and the compass of Islam All the prophets from Abraham to Jesus Christ are honored, but they maintain that Muhammad was the last prophet sent by God with the final message. This means, therefore, that the Qur’an sums up all the messages from God so Islam should include all religions, including Christianity and Judaism which also trace their roots to Abraham (Fisher, 2005). Muslims believe that although God sent many messengers namely: â€Å"Adam, Noah, Abraham, Moses, David, Jesus and Muhammad,† the message He revealed to Muhammad was the final message intended for all of mankind (Robinson, 2007). Human relationship to the divine They believe that God created the universe for a specific purpose or purposes. To achieve His purpose/s, He set down particular laws to govern the actions of everybody. For this reason, Islam maintains that man could live in peace and prosperity only if he recognizes the laws which were set by God and faithfully abide by them. The set of laws of Islam is called the Sharia Law which has been derived from the Qur’an and the Sunna, which has been considered as the Islamic â€Å"custom or practice; particularly that associated with the exemplary life of the Prophet Muhammad, comprising his deeds and utterances as recorded in the hadith† (Robinson, 2007). Belief in the unseen life They accept the existence of the unseen life such as angels. Specifically, they believe in Gabriel, whom they have credited with bringing down the messages of God to humanity. Muhammad, for one, related that the revelations were sometimes brought to him by an angel in human form who would recite the Qur’anic passages to him. They likewise believe that Satan exists just as they believe that there are saints. Belief in the Last Judgment For them, the Last Judgment means that dead Muslims are allowed some rest before being raised from the grave for the final reckoning, after which the sinners and the unbelievers are sent to hell (Fisher. 2005). Those who lived their lives on earth believing in Allah and his prophets and messengers would enter paradise while â€Å"Agnostics, Atheists, Polytheists, and followers of non-Abrahamic religions† would be rejected. Entry into Paradise, according to Muslims, would likewise be denied to all those whose lives were dominated by â€Å"evil deeds† (Robinson, 2007). Central Teachings. (2017, May 29).

Story- english Essay Example | Topics and Well Written Essays - 250 words

Story- english - Essay Example But the captain argues that they need it more, because if they run out of food on the spaceship they will be in trouble. The ships first mate is not pleased either, although it is not explained why. At the end of the page the captain sees something that makes him stop in his tracks. One thing that drives me to this story is its setting. I like the fact that it takes place on another world, and will probably talk about things that cannot be experienced in real life. However, even though this is the case the characters are described realistically and have human problems, so it seems like the story will still relate to real life in that way. I also like the description used. Even though many terms are vague or made up, they still sound important and can be figured out by how the story describes them, like the â€Å"Optus† or the â€Å"Martian go-birds.† The story starts with action, in the captain and his men taking the natives food, and also with some tension between the various characters. The action and the way its described are good because they pull me into the story right away. The tension is just as important because it means something interesting is probably going to happen in the story later on and it makes me want to keep

George W. Bush Essay Example | Topics and Well Written Essays - 1000 words

George W. Bush - Essay Example This made an impact on the life of the young Bush. He also traveled far and wide soliciting donations and help from powerful people. (nurture) As a young boy, he was wise-cracking and strong-willed. This is due to his upbringing. He comes from a clan who is well-regarded in society. His constant companions were boys who belonged to politically-influential families and the elite in society. He was carefree, one time he was caught for painting a mustache in his face while in Music class. But he was a leader, President of his class and involved a lot in extra-curricular activities. Sometimes though, he was a problem to his mother because of some reports from school. As a college senior, Bush became a member of the secretive Skull and Bones, one of the oldest secret student societies in the United States whose past members included prominent personalities. He was described as extremely gregarious, but a notoriously poor dresser, made many friends, bridging the growing divide between the public school graduates who were entering Yale and the "preppies." He became a president of the Delta Kappa Epsilon fraternity and enjoyed parties, drinking, watching and playing football, and dating. He was booked on misdemeanor charge for being part of a prank that involved stealing a Christmas wreath for the frat house. Theories of Personality Freud's theory of personality - the Oedipal complex - works in this stage of the case study. The identification to the father is crucial in the development of the boy - the young Bush had incorporated the moral values and ideals of his president father and has identified himself to him, thus he himself struggled and worked hard to become president himself. As opposed to Freud's theory is the social learning theory which originated from the behavioral writings of Ivan Pavlov, John B. Watson, and B.F. Skinner. According to this theory, the process of learning is of central importance to personality development. Social learning theorists believe that people are influenced by the situations they are in. Bush was much influenced by the situation he was in. He was a student leader - president of a class - and was involved in activities that would make him a leader and a prominent figure in American politics. This means that his personality was learned from school and the environment. The social learning view of personality is vastly different from that of the psychoanalysis of Freud. Freud's concept of psychoanalysis focused on the unconscious mind, or the developmental states that are of primary importance to psychoanalysis. But social learning theorists focus their study of development in learning. Personality is something that is learned, or, the sum total of all the ways that people learned to act, think and feel. It is called social learning because the process is learned from other people. Personality is no more than learned behavior and that the way to understand personality is simply to understand the processes of learning. To social learning theorists, the key concepts in the study of personality are not the id, ego, and superego, as espoused by Freud, but classical conditioning, operant conditioning, and modeling. The

Which came first law or social change Essay Example | Topics and Well Written Essays - 1000 words

Which came first law or social change - Essay Example (Calavita 45) discuses the factor of racial classification in the fourth chapter titled â€Å"The Color of Law† where she explains how the differences in race apply in the immigration law and racial profiling. Legal pluralism is the existence of different legal systems that operate together simultaneously. These systems operate on different levels of the society and usually they do not contradict each other in their provisions. An example of a pluralist legislative system interaction is the United States of America federal system where federal state and local laws operate together. The legal system works to come into consensus with some legal issues, the legal issues here include the death penalty, rights, and gun control, and minimum wage policies. The other form of legal pluralism accepted globally across multiple jurisdictions, which include female genital mutilation, human trafficking, and environmental provisions. (Calavita 27) on her sixth chapter talks about application of law across individuals in society, she elaborates the difference between â€Å"law on books and law in action† apply. According to her, there are laws that allow unequal treatment of individuals in society. The law in this instance does not discriminate on race, sex nor class but its resulting action in the application due to its structure. Discrimination in this case becomes evident in the application of the law in a way that it favors the privileged at the cost of the disadvantaged. The courts in their decisions make them in a way to favor the haves. There is also sexual discrimination where the system favors men, and the women marginalized. Political and class biases are evident. (Calavita 88) Legal pluralism exposes the tension between the law and society. When individual across the boundaries and the law applicable contradicts with the current law or law to be applied seen to be

Business research report Paper Example | Topics and Well Written Essays - 3500 words

Business report - Research Paper Example What are the responsibilities of the corporate companies with reference to glass ceiling? Based on the literature review and discussions, the paper outlines the recommendations to create a level playing field for the women employees to succeed in their carrier and attain top positions of leadership. The recommendations outlined covers introduction of reforms in the performance scales to avoid discrimination on the basis of gender, introduction of quota system by the government by allocating proportional representation for women in recruitment and promotions to higher positions and introduction of legal reforms by the government for property rights to women in succession. These basic reforms at the company and government level will increase the presence of women in top positions in various organizations, institutions and the government departments. The other barriers enumerated will be shattered down over the period of time, once the fundamental reform process covering these issues ar e carried out. Introduction Purpose of the report The issue of glass ceiling in the context of the developments in technology, telecommunication and media assumes greater significance on account equality of opportunities to the women in the society. Several companies have declared this issue as an objective in their CSR (Corporate Social Responsibility) programs. The purpose of the report is to analyze and present the various issues involved in practice and the ways to rectify the position for a better working atmosphere by ensuring equality in opportunity for all in the society for a sustainable development. Scope The scope of the paper is to cover the concept of glass ceiling, the factors leading to this phenomenon in the companies, institutions and government and the responsibilities on the part of the corporate companies or other institutions in fixing up the issue. And as such, the issues extraneous to this objective are covered only to the extent they are relevant to the topic of the discussion. Sources and Methods This report relies mainly on secondary sources for analysis and discussion. The data with reference to glass ceiling are analyzed in the background of the information gathered from the secondary sources which forms the basis for the recommendations. Limitations The psychological factors involved in the study may vary from person to person within the society among males and females. Therefore, perception with regard to the issues could be mostly subjective in nature conditioned by their cultural background, level of education and the individuals’ experience. Therefore, the study can only give broad outlines in its findings and giving specific solution or recommendation to the issue would be difficult. Glass ceiling The discrimination by sex was outlawed in the Civil Rights Act, 1964. The barriers to the advancement of women in employment especially for the leadership positions still exists in various forms though there has been considera ble progress achieved in the lower and middle levels in business organizations and the government departments as per the statistics. Stock, K (2011) states that

The Problem of Pain Assignment Example | Topics and Well Written Essays - 250 words

The Problem of Pain - Assignment Example Additionally, I employed cognitive behavior therapy. Through the therapy, I often busied my mind with other unrelated psychological activities and avoided discussion of the accident. This way, my mind avoided the pain thereby lessening the intensity (Main, Sullivan & Watson, 2008). A different culture would have approached the pain management differently. I remember my father encouraging me not to cry since male children should not always cry. Apparently, my culture viewed crying as a sign of weakness and men are not weak. I believe the effects of the pain could have been different if it were on my sister. She is younger than me, is a girl and often engages in numerous house chores alongside my mother. I believe she could have cried longer and could have found it difficult to engage her mind on other phenomena besides the traumatizing pain a feature that could have limited the success of cognitive behavior therapy (Hughes, 2008). Main, C. J., Sullivan, M. J. L., & Watson, P. J. (2008).  Pain management: Practical applications of the biopsychosocial perspective in clinical and occupational settings. Edinburgh: Churchill

The Mona Lisa Curse Assignment Example | Topics and Well Written Essays - 500 words

The Mona Lisa Curse - Assignment Example Towards the end of the film, Hughes says, â€Å"If art can’t tell us about the world we live in, then in don’t believe there’s much point in having it†. Herein I disagree with his view, since art has always been a reflecting of the contemporary culture. It is kind of rule followed by artists in every era, and is reflected in renowned pieces of modern art. According to Hughes, art is now controlled by the rich who can pay high price for them rather than the critics. However, giving the power back to the critics is not the solution. The solution lies in viewing art from the perspective of the artists since they have created art and so have the answers to all questions. .It is an undeniable fact that people learn to love only those things about which they grow to learn. The same thing can be applied to Godhead. Since the beginning of restoration, many truths have come forward regarding the Godhead. Many such truths were lost during the Apostasy. It is because of Restoration that today we have realized that Heavenly Father, Jesus Christ, and the Holy Ghost are three distinct beings but with a common purpose. We now believe that Father and Son are two separate beings with flesh and blood, while the Holy Ghost is personification of the spirit, who took the form of dove when descending from heaven. It is only by understanding the true essence of God, mankind can introspect themselves. Restoration of Godhead has also inspired us to believe that although Heavenly Father, Jesus Christ, and the Holy Ghost are three distinct beings.

The Problem of Pain Assignment Example | Topics and Well Written Essays - 250 words

The Problem of Pain - Assignment Example Additionally, I employed cognitive behavior therapy. Through the therapy, I often busied my mind with other unrelated psychological activities and avoided discussion of the accident. This way, my mind avoided the pain thereby lessening the intensity (Main, Sullivan & Watson, 2008). A different culture would have approached the pain management differently. I remember my father encouraging me not to cry since male children should not always cry. Apparently, my culture viewed crying as a sign of weakness and men are not weak. I believe the effects of the pain could have been different if it were on my sister. She is younger than me, is a girl and often engages in numerous house chores alongside my mother. I believe she could have cried longer and could have found it difficult to engage her mind on other phenomena besides the traumatizing pain a feature that could have limited the success of cognitive behavior therapy (Hughes, 2008). Main, C. J., Sullivan, M. J. L., & Watson, P. J. (2008).  Pain management: Practical applications of the biopsychosocial perspective in clinical and occupational settings. Edinburgh: Churchill

Case Study Fast Fashion Essay Example for Free

Case Study Fast Fashion Essay After two decades of fast fashion popularity, retailers and consumers have come to realize one of its biggest issues, its impact on the environment. Can fast fashion and sustainability work together? Step 2 The affordability of Fast Fashion is one of the main reasons for its high demand. Lack of authenticity or Intellectual Property. Fast Fashion has forced retailers to desire low cost and flexibility in design. Lack of quality in production Rapid production prevents consumers to get an idea of what’s to expect. (Forecasting) Excess of production. Wastes of these products from the retailers and consumer harm the environment. Reveals what is exposed in runways and fashion shows ahead of time. Fast fashion exploits the young consumer by incentivizing impulse behavior. Consumers are getting used to buying more frequent. Due to such rapid turnover, there’s a lack of exclusivity. Step 3 1. Higher quality, lower quantity. Pros Better option for repair: The customer will rather repair a good quality garment than can last than an inexpensive low quality one. Customer satisfaction: Consumers will be happier with a better value product. Long life: Products that are of better quality will definitely last longer so the consumer wont be forced to dispose. For the retailer, there is a great possibility they may attract a variety of new consumers that do appreciate superior quality. As a result of lower quantity, garments will stand out by look fresher and spacious on the sales floor. Cons Retailers may suffer fewer sales. There is a possibility they may lose some of their usual customers. Fewer options, now that there is a lower quantity. Higher quality means it wont be as affordable for the consumer as it used to be. Companies may have to reinvent themselves and state the fact that they are now enhancing the quality of their products. Consumer will be unwilling to compromise on price. 2. Personalization of Clothing Pros Consumer will be satisfied with having a say in the creation of its particular product. This idea will attract and motivate many more consumers. It’s innovative and fun for the consumer. The design will be personalized and the consumer will want to keep. Cons May require more shopping time for the consumer Products may not be as inexpensive now that the retailer will cater to every individuals needs. Consumers of fast fashion may be disappointed that there will now be less variety. Consumers may not adapt to this idea and reject it. 2. No more wasting, get compensated! Recycle and Reuse. The system involves customers bringing all the used items back to the stores and getting compensated with either a discount or a minimal refund. This is to incentive the customer to care more instead of wasting and harming the eco-system. Pros Companies will be take back used garments and send them off to countries in need. Companies will be able to reuse and reproduce them. Customer’s ability to help other in need is facilitated by the companies they have purchased from. Customers get an incentive to bring items back after knowing they also get a discount/store credit/ refund.

Chemical Safety In Schools Environmental Sciences Essay

Chemical Safety In Schools Environmental Sciences Essay Chemistry plays an important role in human civilization. It enables us to formulate substances important for disease treatment, fertilize plants and provide fuel for transportation ( ). For many years, chemistry has been considered the central science due to its significant connections and overlap with other sciences. If a scientific discipline involves matter, chances are that chemistry plays an important role. Therefore, we will always need people who have a good knowledge of chemistry. As expressed by Beach and Stone (1988) chemistry education without laboratory is like painting without colors and canvas or learning how to ride a bike by reading its operating manual (Tezcan and Bilgin, 2004). The study of chemistry in schools equips students with knowledge in the classroom and skills of conducting experiments in laboratories during practical sessions that are scheduled once a week for a period of two to three hours (MOH, 2001). 2.1.2 Hazards Chemical in the School Experiments The teaching of chemistry at secondary school includes the use of hazardous chemical, which is essential for the understanding of chemistry fundamentals. Example of hazardous chemicals that are available at school chemistry laboratory are hydrochloric acid, sulfuric acid, acetic acid, natrium hydroxide, hydrogen sulfate, ammonium sulfate, hydrogen peroxide, ethanol, propanol and acetone (MOH, 2000). These chemicals are classified as hazardous chemicals to health under the Malaysia Occupational Safety and Health (Use and Standards of Exposure of Chemical Hazardous to Health) Regulations 2000. In view of their hazardous characteristics, the government through the Department of Occupational Safety and Health regulates labelling and packaging of these chemicals. A specific law pertaining to these hazardous chemicals, the Occupational Safety and Health (Classification, Packaging Labelling of Hazardous Chemicals) Regulations 1997 (MDC, 2005), was established under the Occupational Safety and Health Act 1994 (Act 514) later revised based on the Global Harmonized System of Classification and Labelling of Chemicals to enforce the regulation. The chemicals are classified as hazardous based on their physicochemical characteristics and toxicity to human. Oxidizing and flammable chemicals have the potential to cause fire while corrosive and toxic chemicals have the potential to cause external and internal body injuries. For example, volatile organic compound such as acetone, ethanol and formaldehyde have been suggested to cause a nervous system disorder experienced by workers known as solvent syndrome, due to prolonged exposure to organic solvents (Dalton et al., 1997; John Gary, 2001; Kiesswetter et al., 1994; Medinsky et al., 1995). Malaysian Occupational Safety Health (Act 514) and Occupational Safety Health Regulation 2000 (Use and Standard of Exposure to Chemicals Hazardous to Health) specify the permissible exposure level (PEL). The PEL is the maximum time-weighte d average concentration of hazardous chemicals in the air of working area that workers can be exposed without the need to wear personal protective equipment and the PEL for acetone, ethanol and formaldehyde are 1187.0, 1880.0 and 0.4 mg/m3, respectively (MDC, 2005). 2.1.3 Safety Precautions In view of the physical and health hazards of the chemicals, there is requires the implementation of safety precaution and hazard control to reduce the risk of exposure to the chemical hazards. Safety precaution differs based on the type of the chemical hazards. Safety precautions differ based on the type chemical hazards. General safety precaution is personal hygiene whereby the user as advice: To wash hand Wear lab coat No eating and drinking Wear covered shoes Wear eye protection (goggles) Example of additional safety precautions in 2.1.4 Responsibility of Chemistry Teachers The teacher is a key figure in implementing the teaching of chemical science because, without a teacher, students cannot carry out the science practicum well. These students would have had no scientific competence, no skill in conducting experiments, and they would not be able to make observations and analyze experimental data (Senior High School Chemistry Practice in Pekanbaru Riau, 2012). Schools very much rely on chemistry teachers and laboratory staff (laboratory assistants and technicians) in managing the chemistry laboratory. Their tasks include the inventory, storage, repackaging, preparation of experiment reagent, conducting practical curriculum, cleaning of the apparatus and waste collection. Therefore, they play a big role in the practice and regulation of chemical safety in the school chemistry laboratory. Furthermore, they must also provide information and training to the students at every stage of experiment planning and be there to observe, supervise, instruct, and corr ect during the experimentation (School Chemistry Laboratory Safety Guide, 2006). Teachers and teacher-aides should lead by example they should wear personal protective equipment, follow and enforce safety rules, procedures and practices, as well as demonstrated safe behavior and promote a culture of safety. They should be proactive in every aspect of laboratory safety and make, safety a priority. Figure 1 is a checklist for teachers that highlight essential information for working in a high school laboratory. This is a general safety checklist and should be periodically re-evaluated for updates (School Chemistry Laboratory safety Guide NIOSH, 2006). Upkeep of Laboratory and Equipment Recordkeeping Safety and Emergency Procedures Maintenance of Chemicals 2.1.5 Chemical Hazard Symbols (Pictograms) In referring to the Global Harmonized System regulation, each package of chemical and the respective storage place should be clearly labelled with the relevant hazard symbol (pictogram) to communicate the related hazard, subsequently to reduce risk of chemical exposure of the incident. The hazards pictograms or symbols have been standard would be in hygiene______ and ______ Hazard and risk warning signs (label) of chemicals are something that anyone entering into laboratories should understand and be familiar. They are commonly assigned to each chemical in order to draw the attention of users and to classify chemicals according to their characteristics. The knowledge of potential hazards and risks of chemicals and understanding their labels would help to make correct choices and safe utilization and handling of chemicals. These procedures, ultimately, would help to avoid chemical-related accidents on individuals and the environment. There are different approaches to assign hazard-warning signs (labels) to chemicals in order to communicate to the user for their safe handling in laboratories and design safety measures to avoid preventable hazards on users. These labels (warning sign) consist of different colors and pictures and intended to provide information about properties of chemicals such as flammability, toxicity, explosive, corrosive, oxidizing, ir ritating and harmfulness. Understanding or becoming familiar with the labels of these properties would help to avoid unwanted but preventable hazards of laboratory chemicals. Therefore, for safety reasons, individuals working in chemistry laboratories and in other laboratories that involve the use of chemicals are supposed to be aware of the potential hazards of laboratory chemicals and become familiar with the warning sign of each chemical in use. Chemical storage areas can be the most dangerous places in most facilities. Placing the correct warning signs and labels around chemicals is essential to maintaining workplace safety. Hazard symbols are designed to warn about hazardous materials or locations. The use of hazard symbols is regulated by law and directed by standards organizations. Table 1.2: Physical Hazards Hazard Symbol (Old) Symbol (New) Description Explosive C:UsersSONYDesktopex-l.gif Risk of Explosion by shock, friction, fire or other sources of ignition. Handle substance very carefully Do not smoke Keep away from all sources of ignition Oxidizing http://www.hse.gov.uk/chip/images/ox-l.gif May cause fire due to chemical reaction of Organic peroxides Keep substance tightly lidded when not in use Keep substance separate from other substances Extremely Flammable http://www.hse.gov.uk/chip/images/fire-l.gif Highly Flammable http://www.hse.gov.uk/chip/images/fire-l.gif Risk of fire Has a flashpoint of below 21oC Keep away from all sources of ignition Wear rubber soled shoes when using to avoid sparks from static electricity Do not smoke Keep substance tightly lidded in a suitable metal cabinet when not in use Flammable http://www.hse.gov.uk/chip/images/fire-l.gif Table 1.2: Health Hazards Hazard Symbol (Old) Symbol (New) Description Very Toxic http://www.hse.gov.uk/chip/images/skull-l.gif May cause irreversible health problems or even death if inhaled, ingested or if it enters the skin. Wear suitable toxic mask, gloves, eye face protection DO NOT breathe vapours, dusts or mists Avoid contact with skin eyes Toxic http://www.hse.gov.uk/chip/images/skull-l.gif Harmful http://www.hse.gov.uk/chip/images/x-l.gif Corrosive http://www.hse.gov.uk/chip/images/corro-l.gif Irritant http://www.hse.gov.uk/chip/images/x-l.gif Source: Globally Harmonized System of Classification and Labelling of chemicals, United Nations New York and Geneva, 2005. 2.1.6 Chemical Safety and Data Sheet Chemical Safety Data Sheet (CSDS) also known as (SDS), (MSDS) or (PSDS) is an important component of product stewardship and workplace safety. The CSDS, prepared by a product manufactured or distributed by a supplier, contains more information about the chemical than its label. A CSDS is a document that contains information on the potential health effects of exposure to chemicals, or other potentially dangerous substance, and on safe working procedures when handling a chemical product. It is an essential starting point for the development of a complete health and safety program. The document containing finding of the evaluations on the use, storage, handling and emergency procedures related to a specific chemical. The purpose is to communicate the hazards of the product, safe to use the product, possible consequences if the recommendations are not followed, actions to take if accidents occur, as well as symptoms of overexposure and steps to follow if such incidents occur. In Malaysia, as specified in Classification, Packaging Labelling Regulation 1997, chemical suppliers must supply MSDS as part of the requirement for a sale. The recent USECHH regulation 2000 also requires all chemical industry users to have each chemicals MSDS on hand prior to the usage of the chemical in their workplace. Therefore, an MSDS is a very useful source of safety and health information that will help create a safer practice when dealing with chemicals. The information in the CSDS is divided into sections as below: Product Identification Provide general identification of the chemicals. Example: Synonyms, CAS No., Molecular Weight, Chemical Formula, Product Codes (if applicable) Composition / Information on Ingredient Provide the percentage or concentration of the chemical. Some may provide additional hazard information such as PEL (Permissible Exposure Limit), TLV (Threshold Limit Value) etc. Therefore, the seriousness of the chemicals can be referred. Hazards Identification Provide the degree of hazard with reference to: Health rating Flammability rating Reactivity rating Contact rating Additional information may include the potential health effects and symptom through inhalation, ingestion, dermal contact, eye contact, chronic exposure aggravation of pre-existing conditions (if applicable) First Aid Measures To provide first aid attention prior to the arrival of the physician when accident takes place. The piece of information provided may refer to the chemical accident due to: Inhalation Ingestion Dermal Contact Eye Contact Fire Fighting Measures Provide details on the Flash point, Auto Ignition Temperature, Flammability of the chemical product and Explosion capability information. Additional information may include of the proper methods of using fire extinguishing media (dry chemical, foam, water or carbon dioxide) and type of suitable fire fighting protective clothing used during a fire emergency. Accidental Release Measures Provide some essential guideline to deal with for instance how to deal with chemical spillage, ventilation provision, contain and recover liquid when spilled etc. Handling Storage Provide detail to conduct, handling and storing at a safer way. These may include: How to protect the chemical? How to store the chemicals (environment factors consideration)? Is it compatible with other chemicals when stored together? How to use it at a safer way? Exposure Controls/ Personal Protection Provide details how to control the exposure of employees at the workplace when using such chemical, for example: Ventilation system PPE (Respirator, safety goggle, glove, SCBA, apron etc) for skin, eye and other bodily related protection Physical / Chemical Properties Provide detail of some of properties of chemical, for instance: Appearance (clear, colorless, milky etc) Odor (type of smell of product) Solubility (Water soluble, slight solubility etc) pH Boiling point, melting point (OC or F) Vapor density Vapor pressure Evaporation rate Stability Reactivity Provide some details on: Stability and reactivity of the chemical (e.g. during storage) Type of hazardous decomposition products (e.g. release of certain gases such as CO2 when heated) Compatibilities with other chemicals (for example acrylic acid is incompatible with strong oxidizing agents) Toxicological Information This section may refer to the toxicity of the chemical with reference to the LD 50 and LC 50. The lower the value of the LC the more hazardous will be the chemical Ecological Information Provide some detail on ecological impact of the chemical when it is used or discharged to the air, water or soil. Therefore, the user could take some precautious or probably engineering control when deal with this chemical Disposal Considerations Applied for the chemical that couldnt be recycled, saved or recovered and is considered as hazardous waste. (Must comply with local requirements) Transport Information Provide some detail on the identification during transportation of chemical for both domestic and international purposes Regulatory Information Provide some details of the regulatory information from different relevant countries. Additional item would be the inclusive of Hazchem Code from Australia Other Information Provide certain information on for example, NFPA rating in term of health, flammability and reactivity rating. Label hazard warning. (E.g. DANGER! MAY BE FATAL IF SWALLOWED) Label pre-cautious. (E.g. Do not breathe vapor or mist) Label of first aid. (E.g. Do not induce vomiting, give large plenty of water) Product use (if applicable) An example of the CSDS is describe in Appendix. Interactive Multimedia Courseware An information technology innovation that emerged drastically leads to an improvement of its uses in teaching and learning, hence allowing multimedia software to be a popular teacher and nowadays (Mona Masood Nor Azilah Ngah, 2003). Interactive multimedia roused in 1990 where innovative educators started to think of the implication of new media if being adapted to teaching and learning environment. This technological development leads on changes in every life sector consists of education, economy, social and others (G. Torrisi-Steele, 2005). Definition of multimedia The definitions of Interactive Multimedia described in published articles seem to vary between authors. Below are some of the definitions: Fenrich (1997) described multimedia as the exciting combination of computer hardware and software that allows users to integrate video, animation, audio, graphics, and test resources to develop effective presentations on an affordable desktop computer. Phillips (1997) characterized multimedia by the presence of text, pictures, sound, animation and video, some or all of which organized into a coherent program. Multimedia is a multi-sensory interactive user experience, which is defined as a combination of at least one continuous (i.e. sound and video) and one discrete (i.e. text and images) medium (Neo and Neo, 2004). Interactive Multimedia, as described by the encyclopedia Britannica Online, is defined as any computer-delivered electronic system that allows the user to control, combines, and manipulate different types of media, such as text, sound, video, computer graphics, and animation. Types of Multimedia The challenge of multimedia to humanity is thinking through the variety of multimedia artifacts and asking about the clusters of work that can be aggregated into categories such as Web hypermedia, Computer games, Digital Art and Multimedia Encyclopedia. Web hypermedia refers to a work created to explore the possibilities for hypertext and multimedia in education. Most commercially successful multimedia works are computer games. Games like Myst introduced consumers of all ages to the effective use of images, animations, and environmental sound to create a fictional world characterized by navigation and puzzle solving. Digital art has been using multimedia to create interactive installations that are controlled by computers and use multiple media. These playful works are exhibited in galleries and museums as works of art that bring multimedia into the traditions of art exhibition. A common form of educational and reference multimedia is the multimedia encyclopedia like the Encyclopedia Britannica Online and Microsofts Encarta (on CD-ROM). Components of Multimedia Courseware According to Fenrich (1997), media categories incorporated into an instructional multimedia package are as follows: The text is the most common medium of presenting information. It is also used to communicate a concept or an idea. It should effectively complement the other media. Factors that influence the textual communication are typeface, font and style, kerning, antialiasing, animation, special effects, special characters and hypertext. While dealing with text in a multimedia, it is very important to note that, it is not the only means of communication. In multimedia, text is most often used for titles, headlines, menus, navigation and content. Overcrowding of text on a single page should be avoided. Audio is another vital media in a multimedia presentation. Audio is available in different file formats and choosing the appropriate file format is important to maximize its performance on the multimedia. Sound editors play an important role in converting file formats and enhancing the quality of sound. In most cases, sound files are imported and edited for a multimedia application. Video in multimedia is an extremely useful communication tool for presentations. It illustrates ideas and concepts better than static two-dimensional pictures besides capturing real world events. Video files occupy enormous space and there are two recommendations: Use very short video clips (not exceeding a minute or two) Use highly compressed video files such as MPEG. One could also transform AVI files to MPEG files. Graphics are the most commonly used element of multimedia. The richness of multimedia and effective communication is achieved through graphic presentations. The attributes of color, texture, pattern and animation enrich a multimedia presentation. A very popular and a chief element of multimedia is animation. The key concepts of computer animation are key frames and tweening. Animation is a simulation of movement created by displaying a series of pictures or frames. Animation is strictly a visual illusion. It builds dynamism, energy and motion onto inanimate objects. It also adds the dimension of time to graphics. Computer animation is relevant to multimedia as all the presentations are developed on the computer. Multimedia Interactivity Barker (1994) defines interactivity in learning as a necessary and fundamental mechanism for knowledge acquisition and the development of both cognitive and physical skills. Scientific research shows that the process of remembering in the human brain is faster when people receive much emphasis in various forms for a short period. The concept of interactivity in multimedia helps the human brain to improve the process of learning (Application of multimedia Technology in University Teaching-4). Examination of 75 learning studies (Bosco, 1986; Fletcher, 1990) found that people learn faster and have better attitudes toward learning the material when they learn in an interactive instructional environment (, 2003). Thus, the interactivity is seen an important character for an effective multimedia courseware. Damarin (1982) identified a series of interactive options, which include watching, finding, doing, using, constructing, and creating. While Ambron and Hooper (1988) described interactivity as a state in which users are able to browse, annotate, link and elaborate within a rich, nonlinear database. Hence, interactivity is seen to boost motivation in learning. Motivation is another important factor that should be considered when designing multimedia courseware. Ideally, users should experience an intrinsic desire to engage in the presentation; being interested in completing the task for their own sake rather than because of any value attached to their completion. For meaningful learning to occur, it is important to design for intrinsic motivation on the part of its users (Biggs and Moore, 1993). Intervention Tool for Chemical Safety Education Multimedia enables a way for learners to experience simultaneous graphic, video and audio, rather than in a sequential manner. Moreover, multimedia can provide an enhanced or augmented learning experience at low cost per unit. The power of multimedia can be unleashed to provide long-term benefits to all. Multimedia enrich the learning experience through exploration and discovery. The process of learning can become more goals oriented, participatory, flexible in aspects of time and space, and tailored to individual learning styles. Multimedia allows learning to become fun and friendly, without fear of inadequacies or failure (, 2003). It uses natural information-processing abilities that we already possess. Our eyes and ears, in conjunction with our brain, form a formidable system for transforming meaningless data into information. Another advantage of multimedia courseware over the text-based variety is that the multimedia is visually more simulating. Even when the courseware include s only a few images of little pedagogical value, it at least provides relief from the screen of text and stimulates the eye. (, 2003). 2.3 Learning Aided by Instructional Design using Interactive Multimedia Courseware Instructional Design is a discipline of study and has evolved over the last forty years as a science. It is a young field inspired from areas of communication, psychology and media to form its own theory. Various authors have defined instructional design in their own way. McArdle (1991) defines Instructional Design simply as using a systematic process to understand a human performance problem, figuring out what to do about it and then doing something about it. Richey (1986) defines Instructional Design as the science of creating detailed specifications for the development, evaluation and maintenance situations that facilitate learning. Briggs (1977) defines Instructional Design as the entire process of analysis of learning needs and goals and the development of a delivery system to meet the needs. Learning is primarily the process through which we become the person we are, and it takes place through a variety of media, strategies, and processes, of which interactive multimedia are just one of them. Using these media and technologies, we internalize information and knowledge available in the external world to construct our own experiences (, 2004). Individuals learn, retain, and transfer information better through (Interactive Multimedia in Education and Training, 2004): Table 1.1: Principles that influence the effectiveness of multimedia as described by No. Principle Details 1 Multimedia principle When the instructional environment involves words and pictures alone 2 Modality principle When the instructional environment involves auditory narration and animation rather than on-screen text and animation 3 Redundancy principle When the instructional environment involves narration and animation rather than on-screen text, narration, and animation 4 Coherence principle When the instructional environment is free of extraneous words, pictures and sounds 5 Signalling principle When the instructional environment involves cueing, or signals, that guide an individuals attention and processing during a multimedia presentation 6 Contiguity principle Where words or narration and pictures or narration are presented simultaneously in time and space 7 Segmentation principle Where individuals experience concurrent narration and animation in short, user-controlled segments, rather than as a long continuous presentation