Perl: A Popular Scripting Language
Perl was created under strange circumstances, it was never intended to be a
widely used public language but the features it provided caused many programmers to
crave for more. Larry Wall initially created Perl to produce reports from a “Usenet-
news-like hierarchy of files for a bug-reporting system.” 1 Apparently
awk and sed could not handle the task. Larry decided to fix this problem with a C application now known as Perl, Practical Extraction and Report Language. Perl grew at the same rate as the UNIX operating system. It became portable as new features were added. Perl now has extensive documentation available in different man pages. Perl is growing now just as every widely used programming language.
Perl is known for its management of data. It can manipulate files and directories and manage tasks. It can easily analyze results from other applications including sorting large files that would take a human a long time. Perl is generally used for its scripting abilities. String manipulation is much smoother using Perl than using imperative languages like Java and C.
The data representation of numeric data in Perl is a little different than other
languages. All numeric data is a double precision floating point value in Perl. For this reason it would not be a good idea to solve complex mathematical problems with Perl because it would be much slower than using a regular imperative language. String values are sequences of characters as in most other languages. The convention for scalar variable identifiers is a dollar sign followed by a character followed by a sequence of underscores and alphanumeric values. Scalar variables can contain a single value representing a number, string, or reference. For example “$a = “hello”” is just as valid as “$b1 = 3.4”.
Perl has numerous built in functions and it allows for user defined subprograms.
Subprograms are an example of data abstraction. To define a subprogram you use the convention if “sub subname { statements; }”. To pass parameters you call subname(arg1, arg2). To access the parameters is a little different, you must get the values from the temporary @_ array. The @_ array is private to the subprogram. Subprograms can return variables and can have their own private variables. Perl can have input from files and keyboards and can have output to files and screens.
"To Kill a Mockingbird." Novels for Students. Ed. Diane Telgen. Vol. 2. Detroit: Gale, 1997. 285-307. Gale Virtual Reference Library. Web. 3 Feb. 2014.
Through several movements India worked towards gaining their independence, even though it was a lot harder than expected. In 1885, Indian liberal nationalists formed the Indian National Congress. Their first meeting was held in Bombay and the Indian National Congress organized religious festivals to make nationalism popular. Mohammed Ali Jinnah created the Muslim League in 1906 and they aimed to...
Simulated practice has been described as the “activities that mimic the reality of a clinical environment and are designed to demonstrate procedure, decision making and critical thinking through techniques such as role playing and the use of devices such as interactive vidoes of manikins” (Connor, 2014). This study is aimed to explore what is successful and what is not in nursing simulations. In this study it is mentioned human patient simulation is potential for student education in nursing. In addition, they indicated the importance of human simulation and describe it as a very valuable tool. In another finding, the authors indicate mannequins with the capability of interacting with the student are able to provide with real life scenarios thus allow for critical develop clinically. Interestingly, the researcher emphasized how this simulated mannequin was not used early on in nursing education instead a more traditional format used to be in place ex. Nursing skills taught at the bedside. However, the risk involved with this format of teaching for a new student with minimal clinical experience was potentially the risk of harming a patient. The beauty of simulated mannequins is “For students, there is no fear of harming a living patient.” Pressure to perform quickly and efficiently without mistake is loosened as students may repeat skills as many times as needed. They mentioned how a simulation laboratory is a controlled environment free from distraction and interruption. In addition, 25% their studies cite integration of simulation-based exercises into the curriculum as an essential feature of their effective use. The researchers emphasized and indicate how simulation-based education should not be an extra-ordinary activity, bu...
For years nurses have gained experience in the medical field through clinical rounds at hospitals and doctors offices. Learning has always taken place first through textbooks and then through personal experience during required clinical time. These methods have proven effective but include limitations to the amount of exposure a student can gain before entering the workforce. A new way of learning is on the rise with the use of High Fidelity Simulations (HFS) or the Sim Man. HFS is a computerized life size manikin that simulates real human responses to treatment. This new technology allows students to practice rare procedures or treat common diagnoses.
Simulation Based Medical Education has been shown to provide opportunities to practice procedural skills and make errors without
Wagner, D., Bear, M., & Sander, J. (2009). Turning simulation into reality: increasing student competence and confidence+. Journal of Nursing Education, 48(8), 465-467.
The Ada language is the result of the most extensive and most expensive language design effort ever undertaken. The United States Department of Defense (DoD) was concerned in the 1970¡¦s by the number of different programming languages being used for its projects, some of which were proprietary and/or obsolete. Up until 1974, half of the applications at the DoD were embedded systems. An embedded system is one where the computer hardware is embedded in the device it controls. More than 450 programming languages were used to implement different DoD projects, and none of them were standardized. As a result of this, software was rarely reused. For these reasons, the Army, Navy, and Air Force proposed to develop a high-level language for embedded systems (The Ada Programming Language). In 1975 the Higher Order Language Working Group (HOLWG) was formed with the intent of reducing this number by finding or creating a programming language generally suitable for the department's requirements.
The programming language C++ can be used in many ways. It has exploded into the gaming community allowing PC game programmers to have access to a stabile, yet powerful, programming language, utilizing as little code as possible. It has also been used in other commercial software, such as word processors, audio players, screen savers, and other computer desktop tools.
Simulation is something that looks, feels, or behaves like something else, usually used for the education or training of people (Merriam-Webster). Simulation has been used as an educational and training tool for hundreds of years by various fields and professions. Recent years have seen an increase in the number of nursing students and a decrease in clinical experience available. The field of nursing has always used some type of simulation in its curriculum and now its use is changing and on the rise. Now we have to ask ourselves: is simulation an acceptable substitute for clinical experience?
The Gothic addresses the fact that we cannot fend off the irrationality of our minds. Gothic literature departs from the traditional nature of the world to explore the unknown. There are six literary and culture elements of Gothic Fiction that include; castles, Catholicism, sexual oppression, wilderness, the supernatural, and the grotesque. The Victorians were known for their prudish ways, strict prudish moral code, imperial empire, gender roles, and technological advances and scientific discoveries. These attributes provide grounds for Gothic literature to flourish. Elizabeth Gaskell and Christina Rossetti's used some of gothic elements such as; the superna...
Watson, J. (2008). A history of computer operating systems (pp. 14-17). Ann Arbor, MI: Nimble Books.
Most programming languages—such as C, C++, and Fortran—use compilers, but some—such as BASIC and LISP—use interpreters. An interpreter analyzes and executes each line of source code one-by-one. Interpreters produce initial results faster than compilers, but the source code must be re-interpreted with every use and interpreted languages are usually not as sophisticated as compiled languages.
Many different types of programming languages are used to write programs for computers. The languages are called "codes". Some of the languages include C++, Visual Basic, Java, XML, Perl, HTML, and COBOL. Each of the languages differs from each other, and each is used for specific program jobs. HTML and JAVA are languages used to build web pages for the Internet. Perl and XML can produce codes that block students from getting on certain inappropriate web pages on their school server. One of the most prominent programming languages of the day would have to be C++.
Destruction of redundant political structures and the emergence of new paradigms of power need not always be through bloody wars and violent revolutions as has been the norm throughout the course of history. During India’s nearly a century long struggle for independence, it was Mahatma Gandhi’s non-violent approach by upholding the principles of Ahimsa as a mighty moral and spiritual weapon that eventually brought Great Britain, the most powerful coloniser of the modern world, down to its knees. A more balanced approach to history would also take into account the exploits of the Indian National Army, the belligerent Naval Mutiny and a weakened post-war Britain as among many other factors that finally freed India from British colonialism. However,
C++ has a strong philosophy that refers to its development and also the evolution of the program, it has been governed by a set of rules that its expansion should follow. The very first rule is that the program should be drove by actual problems and its feature...