Health education

is defined as the principle by which individuals and groups of people learn to behave in a manner conducive to the promotion, maintenance, or restoration of health. The ultimate aim of Health Education is Positive Behavioural ModificationEducation for health begins with people. It hopes to motivate them with whatever interests they may have in improving their living conditions. Its aim is to develop in them a sense of responsibility for health conditions for themselves as individuals, as members of families, and as communities. In communicable disease control, health education commonly includes an appraisal of what is known by a population about a disease, an assessment of habits and attitudes of the people as they relate to spread and frequency of the disease, and the presentation of specific means to remedy observed deficiencies

Role of science in health

Health science is the branch of science focused on health, and it includes many subdisciplines. There are two approaches to health science: the study and research of the human body and health-related issues to understand how humans (and animals) function, and the application of that knowledge to improve health and to prevent and cure diseases

Environmental health services

Environmental health services are defined by the World Health Organisation as:
Those services which implement environmental health policies through monitoring and control activities. They also carry out that role by promoting the improvement of environmental parameters and by encouraging the use of environmentally friendly and healthy technologies and behaviors. They also have a leading role in developing and suggesting new policy areas.
Environmental health practitioners may be known as sanitarians, public health inspectors, environmental health specialists or environmental health officers. Many states in the United States require that individuals have professional licenses in order to practice environmental health. California state law defines the scope of practice of environmental health as follows:"Scope of practice in environmental health" means the practice of environmental health by registered environmental health specialists in the public and private sector within the meaning of this article and includes, but is not limited to, organization, management, education, enforcement, consultation, and emergency response for the purpose of prevention of environmental health hazards and the promotion and protection of the public health and the environment in the following areas: food protection; housing; institutional environmental health; land use; community noise control; recreational swimming areas and waters; electromagnetic radiation control; solid, liquid, and hazardous materials management; underground storage tank control; onsite septic systems; vector control; drinking water quality; water sanitation; emergency preparedness; and milk and dairy sanitation

Cryptography

Cryptography simply refers that hiding information. Its combination of both maths and computer science and is associated with information theory, engineering and computer security. Cryptography is the process of Encryption and Decryption.In this encryption process the given plain text converted into cipher text at sender side. In the receiver side encrypted code will be converted into decrypted format, in the sense the cipher text can converted into plain text. Some key might used at both the encrypted and decrypted process. Two types of keys used; they are Symmetric encryption key and asymmetric encryption keys. Symmetric encryption uses the single key for both encryption and decryption. But asymmetric uses the public key encryption. Cryptography provides the following safety measures, major part of these measures are Authentication, privacy/confidentiality, Integrity and non-reputations.

Swaraj and the Salt Satyagraha

Gandhi stayed out of active politics and as such limelight for most of the 1920s, preferring to resolve the wedge between the Swaraj Party and the Indian National Congress, and expanding initiatives against untouchability, alcoholism, ignorance and poverty. He returned to the fore in 1928. The year before, the British government had appointed a new constitutional reform commission under Sir John Simon, which did not include any Indian as its member. The result was a boycott of the commission by Indian political parties. Gandhi pushed through a resolution at the Calcutta Congress in December 1928 calling on the British government to grant India dominion status or face a new campaign of non-cooperation with complete independence for the country as its goal. Gandhi had not only moderated the views of younger men like Subhas Chandra Bose and Jawaharlal Nehru, who sought a demand for immediate independence, but also reduced his own call to a one year wait, instead of two.[12] The British did not respond. On 31 December 1929, the flag of India was unfurled in Lahore. 26 January 1930 was celebrated by the Indian National Congress, meeting in Lahore, as India's Independence Day. This day was commemorated by almost every other Indian organization. Gandhi then launched a new satyagraha against the tax on salt in March 1930, highlighted by the famous Salt March to Dandi from 12 March to 6 April, marching 400 kilometres (248 miles) from Ahmedabad to Dandi, Gujarat to make salt himself. Thousands of Indians joined him on this march to the sea. This campaign was one of his most successful at upsetting British hold on India; Britain responded by imprisoning over 60,000 people.


At 10 Downing St., 1931The government, represented by Lord Edward Irwin, decided to negotiate with Gandhi. The Gandhi–Irwin Pact was signed in March 1931. The British Government agreed to set all political prisoners free in return for the suspension of the civil disobedience movement. As a result of the pact, Gandhi was also invited to attend the Round Table Conference in London as the sole representative of the Indian National Congress. The conference was a disappointment to Gandhi and the nationalists, as it focused on the Indian princes and Indian minorities rather than the transfer of power. Furthermore, Lord Irwin's successor, Lord Willingdon, embarked on a new campaign of controlling and subduing the movement of the nationalists. Gandhi was again arrested, and the government attempted to negate his influence by completely isolating him from his followers. However, this tactic was not successful. In 1932, through the campaigning of the Dalit leader B. R. Ambedkar, the government granted untouchables separate electorates under the new constitution. In protest, Gandhi embarked on a six-day fast in September 1932, successfully forcing the government to adopt a more equitable arrangement via negotiations mediated by the Dalit cricketer turned political leader Palwankar Baloo. This was the start of a new campaign by Gandhi to improve the lives of the untouchables, whom he named Harijans, the children of God. On 8 May 1933 Gandhi began a 21-day fast of self-purification to help the Harijan movement.[13] This new campaign was not universally embraced within the Dalit community, however, as prominent leader B. R. Ambedkar condemned Gandhi's use of the term Harijans as saying that Dalits were socially immature, and that privileged caste Indians played a paternalistic role. Ambedkar and his allies also felt Gandhi was undermining Dalit political rights. Gandhi, although born into the Vaishya caste, insisted that he was able to speak on behalf of Dalits, despite the availability of Dalit activists such as Ambedkar.

In the summer of 1934, three unsuccessful attempts were made on his life.

When the Congress Party chose to contest elections and accept power under the Federation scheme, Gandhi decided to resign from party membership. He did not disagree with the party's move, but felt that if he resigned, his popularity with Indians would cease to stifle the party's membership, that actually varied from communists, socialists, trade unionists, students, religious conservatives, to those with pro-business convictions and that these various voices would get a chance to make themselves heard. Gandhi also did not want to prove a target for Raj propaganda by leading a party that had temporarily accepted political accommodation with the Raj.[14]

Gandhi returned to the head in 1936, with the Nehru presidency and the Lucknow session of the Congress. Although Gandhi desired a total focus on the task of winning independence and not speculation about India's future, he did not restrain the Congress from adopting socialism as its goal. Gandhi had a clash with Subhas Bose, who had been elected to the presidency in 1938. Gandhi's main points of contention with Bose were his lack of commitment to democracy, and lack of faith in non-violence. Bose won his second term despite Gandhi's criticism, but left the Congress when the All-India leaders resigned en masse in protest against his abandonment of the principles introduced by Gandhi

How much of each food group do a person need?

Focus on fruits: Eat a variety of fruits – whether fresh, frozen, canned or dried – rather than fruit juice for most of your fruit choices. Try melons such as cantaloupe, berries such as blueberries, and citrus fruit such as grapefruit. Teen girls need 2 cups of fruits each day.

Vary your veggies: Eat more dark green veggies, such as broccoli, kale, and other dark leafy greens; orange veggies, such as carrots, sweet potatoes, pumpkin, and winter squash; and beans and peas, such as pinto beans, kidney beans, black beans, garbanzo beans, split peas and lentils. Teen girls need 2½ cups of vegetables each day.

Get your calcium-rich foods: Teen girls need 1,300 milligrams of calcium every day, which equals 130% of the DV (Daily Value) of the 1,000 milligrams that is recommended for adults. This means that teen girls need 30% more calcium than adults need. To get 1,300 milligrams each day, drink and eat a variety of foods that are high in calcium, such as fat-free or low-fat milk, fat-free yogurt, American cheese, ricotta cheese, and fruit yogurt and consume the recommended amounts from the other food groups. It would take 3 cups of milk to get 1,300 mg of calcium.

Make half your grains whole: Of the about 6 ounce-equivalents of grains teen girls need every day, at least 3 should be whole-grain cereals, breads, crackers, rice, or pasta. One ounce-equivalent is about 1 slice of bread, 1 cup of breakfast cereal, or ¼ cup of cooked rice or pasta. Look to see that grains such as wheat, rice, oats, or corn are called "whole" in the list of ingredients. Bread that is just called "wheat" bread is not the same as "whole wheat bread." Look for "whole wheat" to know it is the healthiest option.

Go lean with protein : Choose lean meats and poultry that are baked, broiled or grilled. And vary your protein choices by also eating more fish, beans, peas, nuts, and seeds. Teen girls need about 5½ ounces of lean protein each day. A 2-3 ounce serving of meat, poultry, or fish is equal to the size of a deck of cards.

Iron deficiency

Iron helps the body in many important processes. For example, it is an essential part of haemoglobin, the red pigment in our blood that allows it to carry oxygen around the body.

Red meat is the richest source of iron. The iron in animal sources is absorbed easily by the body.

There is also iron in pulses (such as lentils and beans), dried fruit, green leafy vegetables, nuts and seeds, and in fortified breakfast cereals. The iron in these foods is not so easily absorbed by the body.

If iron levels are low, the amount of haemoglobin in our red blood cells, as well as the number of red blood cells, is reduced. This is called anaemia.

All the tissues and cells in the body depend on oxygen to function properly; if they receive less oxygen, they won't work so well.

On average, adult men need 8.7mg of iron a day. For women the figure is 14.8mg.