writing.writing 2008 .......ici.....new (national)03/06/2008

internet

The Internet is a worldwide, publicly accessible network of interconnected computer networks that transmit data by packet switching using the standard Internet Protocol (IP). It is a "network of networks" that consists of millions of smaller domestic, academic, business, and government networks, which together carry various information and services, such as electronic mail, online chat, file transfer, and the interlinked web pages and other documents of the world wide web.
The USSR's launch of Sputnik spurred the United States to create the Advanced Research Projects Agency, known as ARPA, in February 1958 to regain a technological lead.[1][2] ARPA created the Information Processing Technology Office (IPTO) to further the research of the Semi Automatic Ground Environment (SAGE) program, which had networked country-wide radar systems together for the first time. J. C. R. Licklider was selected to head the IPTO, and saw universal networking as a potential unifying human revolution.
Licklider had moved from the Psycho-Acoustic Laboratory at Harvard University to MIT in 1950, after becoming interested in information technology. At MIT, he served on a committee that established Lincoln Laboratory and worked on the SAGE project. In 1957 he became a Vice President at BBN, where he bought the first production PDP-1 computer and conducted the first public demonstration of time-sharing.
At the IPTO, Licklider recruited Lawrence Roberts to head a project to implement a network, and Roberts based the technology on the work of Paul Baran who had written an exhaustive study for the U.S. Air Force that recommended packet switching (as opposed to circuit switching) to make a network highly robust and survivable. After much work, the first node went live at UCLA on October 29, 1969 on what would be called the ARPANET, one of the "eve" networks of today's Internet. Following on from this, the British Post Office, Western Union International and Tymnet collaborated to create the first international packet switched network, referred to as the International Packet Switched Service (IPSS), in 1978. This network grew from Europe and the US to cover Canada, Hong Kong and Australia by 1981.
The first TCP/IP-wide area network was operational by January 1, 1983, when the United States' National Science Foundation (NSF) constructed a university network backbone that would later become the NSFNet.
It was then followed by the opening of the network to commercial interests in 1985. Important, separate networks that offered gateways into, then later merged with, the NSFNet include Usenet, BITNET and the various commercial and educational networks, such as X.25, Compuserve and JANET. Telenet (later called Sprintnet) was a large privately-funded national computer network with free dial-up access in cities throughout the U.S. that had been in operation since the 1970s. This network eventually merged with the others in the 1990s as the TCP/IP protocol became increasingly popular. The ability of TCP/IP to work over these pre-existing communication networks, especially the international X.25 IPSS network, allowed for a great ease of growth. Use of the term "Internet" to describe a single global TCP/IP network originated around this time.


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Terrorism
Terrorism is a term used to describe violence or other harmful acts.they are classified terrorism into six categories.Civil Disorders.Political Terrorism .Non-Political Terrorism.Quasi-Terrorism.Limited Political Terrorism .Official or State TerrorismTerrorist attacks are often targeted to maximize fear and publicity. They usually use explosives or poison, but there is also concern about terrorist attacks using weapons of mass destruction. Terrorist organizations usually methodically plan attacks in advance, and may train participants, plant "undercover" agents, and raise money from supporters or through organized crime. Communication may occur through modern telecommunications, or through old-fashioned methods such as couriers.The context in which terrorist tactics are used is often a large-scale, unresolved political conflict.
The type of conflict varies widely; historical examples include:
Secession of a territory to form a new sovereign state
Dominance of territory or resources by various ethnic groups
Imposition of a particular form of government, such as democracy, theocracy, or anarchy
Economic deprivation of a population
Opposition to a domestic government or occupying army


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A revolution
A revolution (from Late Latin revolutio which means "a turn around") is a significant change that usually occurs in a relatively short period of time. Variously defined revolutions have been happening throughout human history. They vary in terms of numbers of their participants (revolutionaries), means employed by them, duration, motivating ideology and many other aspects. They may result in a socio-political change in the socio-political institutions, or a major change in a culture or economy. Scholarly debates about what is and what is not a revolution center around several issues. Early study of revolutions primarily analyzed events in European history from psychological perspective[citation needed], soon however new theories were offered using explanations for more global events and using works from other social sciences such as sociology and political sciences. Several generations of scholarly thought have generated many competing theories on revolutions, gradually increasing our understanding of this complex phenomenon

Brain Drain =هجرة الأد مغة (some formation about DB)



Brain drain” is the phenomena whereby nations lose skilled labor because there are better paid jobs elsewhere. In recent years , this has affected poorer countries more so, as some rich countries tempt workers away, and workers look to escape bleak situations in their poor home countries

According to Dictionary.com , the term “ Brain drain ” originated in the 1960s, “when many British scientists and intellectuals emigrated to the United States for a better working climate.” In recent years, however, the problem of “brain drain ” has been acute for poorer countries that lose workers to wealthier countries .

Leisure time


Recreation is very important for one health whoever we are we need leisure activities because they enable us our minds and bodies
If we go on working without a break we’ll get bord and exchasted
Therfore we should spend our free time on the things we like doing much as listing to music and pratising sport in this way we’ll have energy to rasume our studies and warking.



Television
?Television has became part of our every day life .what are its advantages and disadvantages
On the one hand, TV has became the most influential means of the mass media because it has both sound and picture .it’s also the most popular source of information education and international , in brief TV brings the whole word to us.
One the other hand TV develops passive and lazy viewers .it also prevents communication between the members of the family besides students don’t their homwork and may became aggressive when they watch films of violence.



Advertinsing
One the hand advertising makes consumers aware, of the new products on the market and helps them spend their money wisely it also as creates many jobs .
On the other hand advertising makes people feel frustrated, if they can’t afford the products .it also increases the prise of goods what’s more it urges consumers to buy unnecessary commodities .



Pollotion
By polluting the atmosphere man is destroying this is happening through ignorance and short sight men
Of the ozone larger leads to many hazads such as diseuse rand global werming this rise in temportre , wish is due to carbon dicide from the smoke of factories and achast fames of whishes causes the meting of the polar ice the rive in sea level and change of the climats .
We should find solutions others wise living being will face the danger of extinction.



Working children
Child labour is one of the problems that many countries face, there are various causes that drive children to work some of them drop out of school in order to help their poor or sick parents others have to work because they are orphans. In addiction some parents are ignorant they think education is a waste of time.
Working children face a tough life; in factories and mines they work in bad conditions no fresh air, long hours they may be injured by machines they are also deprived of education and childhood


English
World science is dominated today by a small number of languages, but English which is probably is the most popular global language of science and of modern technology that because many reason: first it is international language and the majority of country used it as their home language, In addition to that you can understand what happen in the world, in the other hand you can understand the new technology, moreover we see that .


brain drain

The migration of skilled individuals from developing countries has typically been considered to be costly for the sending country , due to lost investments in education, high fiscal costs and labour market distortions. Economic theory, however, raises the possibility of a beneficial brain drain primarily through improved incentives to acquire human capital. Our survey of empirical and theoretical work shows under what circumstances a developing country can benefit from skilled migration. It argues that the sectoral aspects of migration and screening of migrants in the receiving country are of major importance in determining the welfare implications of the brain drain. These issues, as well as the size of the sending country, duration of migration and the effect of diaspora populations, should be addressed in future empirical work on skilled migration .



Synopsis:

International migration, the movement of people across international boundaries, has enormous economic, social and cultural implications in both origin and destination countries. Using original research, this title examines the determinants of migration, the impact of remittances and migration on poverty, welfare, and investment decisions, and the consequences of brain drain, brain gain, and brain waste.

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