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MIME Overview by Mark Grand Internet e-mail allows mail messages to be exchanged between users of computers around the world and occasionally beyond… to space shuttles. One of the main reasons that Internet e-mail has achieved such wide use is because it provides a standard mechanism for messages to be exchanged between over 1,000,000 computers connected to the Internet. The standards that are the basis for Internet e-mail were established in 1982. Though they were state of the art in 1982, in the intervening years they have begun to show their age. The 1982 standards allow for mail messages that contain a single human readable message with the restrictions that: • the message contains only ASCII characters. • the message contains no lines longer than 1000 characters. • the message does not exceed a certain length The 1982 standards do not allow EDI to be transmitted through Internet mail, since EDI messages can violate all of these restrictions. There are a number of other types of me

Primary key constraints This constraint avoids duplication of rows and does not allow NULL values, when enforced in a column or set of columns. A a result it is used to identify a row. A table can have only one primary key. If a primary key constraint is assigned to more than one column(i.e) or combination of columns it is said to be a composite primary key (or simply a composite key), which can contain a maximum of 16 columns. Primary key constraint cannot be defined in an alter table command when the table contains rows having NULL values. Run and Check your out put - select * from emp; - select deptno, dname, loc from dept; - select empno, ename, salary, hiredate from emp; - select ename,salary, salary+100 from emp; - select ename, salary, (salary*12)+100 from emp; - select ename,slary, (salary*12)+comm. from emp; - select ename,salary, (salary*12)+nvl(comm,0) from emp; - select ename “Full Name”, salary*12 “Annual Salary” from emp; - select enamejob from emp; - select ename’ is a ‘

Health promotion in Nepalese context Increasing health awareness and developing positive attitudes and behavior towards healthier living is still a crucial need of the people to cope an alarming health problem like communicable and non-communicable diseases, which are still the leading causes of morbidity and mortality of the people. Emerging diseases such as Japanese Encephalitis, Viral Hepatitis and STD including HIV/AIDS pose increasing threats to the health and well being of the people of the country. Tobacco use, excess use of alcohol, inadequate physical activity, obesity, improper food habit and polluted environment has significant role in increasing burden of communicable and non-communicable diseases in the nation. Similarly, mental health, oral health, hearing impairment, blindness, cardiovascular diseases, diabetes, hypertension, malignancies and problems of elderly are the health issues that need to be addressed effectively by controlling and reducing risk factors and other

History of Public health in world Introduction Health promotion has been defined by the 2005 Bangkok charter for Health Promotion in Globalized World as "the process of enabling people to increase control over their health and its determinants, and thereby improve their health”. Means of health promotion include health education and social marketing. The "first and best known" definition of health promotion, promulgated by the American Journal of Health Promotion since at least 1986, is "the science and art of helping people change their lifestyle to move toward a state of optimal health”. This definition was derived from the 1974 Lalonde report from the Government of Canada, which contained a health promotion strategy "aimed at informing, influencing and assisting both individuals and organizations so that they will accept more responsibility and be more active in matters affecting mental and physical health. Another predecessor of the definition was the 1979