Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Radiation:
High doses of radiation are very harmful for human health. Do you know about the disaster ceated by the first atomic bombs which were exploded on two cities of Japan, Hiroshima and Nagasaki in 1945? They killed thousands of people and injured many more badly. The effects of exposure to intense radiation took years to appear as burns or cancer in human beings. After a couple of decades, the effect on babies born to mothers who were exposed to big doses of radiation, began to show up. Radiation is an important component of man's environment. We receive some radioactivity all the time from cosmic rays, from terrestrial and atmospheric environment and also from trace amounts of radioactive potassium, strontium and carbon present in the tissues of the body. At altitudes above 20 km, cosmic radiation is much stronger. Although, we do not find any immediate ill effects of this natural radiation on our health, one cannot be sure that they do not have long term effects.
Then there are man-made sources of radiation in modern era which have become an indispensable component of our life. Diagnostic medical and dental x-rays affect patients, doctors and technicians. T.V. sets, radioactive dial watches and luminous markers etc. add small amounts of radiation to man's environment, while nuclear power plant waste, if not disposed of properly, is a great risk to human health. Major hazards of radiation are testing of atomic and nuclear bombs. Radiation, like x-rays, gamma rays, alpha and beta particles penetrate the body tissues and injure them.
The extent of damage is related to the total dose of exposure. Higher doses affect immediately and are fatal. They affect the blood cells and soften the muscles. Acute radiation sickness is a well defined disease. Somewhat lower doses show delayed effects. They cause some cells to divide more rapidly than usual. 'Ibis leads to various forms of cancer like Leukaemia or other malignant tumors. Unfortunately, some of the damages are not recognisable within the life span of the exposed person, these will become manifest in the coming generations.
Nature of scientific knowledge: Science, as we have seen, is inseparable from the rest of human endeavour. In the past few thousand years of human history, an immense fund of
where can glacier erosion occur?
Question 1 What is medical evidence? What are the types of medical evidence? What are the precautions should be taken by a medical officer while issuing medical certificate? Q
The ability of rock or soil to transmit water is known as its: Permeability
Explain Immunoassay - antigen-antibody interaction Immunoassay : This helps us to measure concentration of Ag derived from infectious organism or to measure specific Ab bound
#i do not know how to write assignment on it..
Soil Textural Classes On the basis of the proportion of different soil separates present, the soils are classified into different groups called as soil classes. The soil class
Ingestion : The standard treatment for this type of poisoning is as follows: (1) Tell the casualty to spit out as much of the material as possible and then wash the mouth thoro
1. Sketch and explain different regions of a pressure-volume diagram of a full cardiac cycle. 2. Sketch and explain the relationship between cardiac output and end-diastolic v
Imagine a small observer is positioned in front of cork in your picture above. As the cork approaches, the observer measures the wavelength of the waves passing by. How does this w
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd