Calculations on shielding are required for the building of a gamma ray radiography exposure room to ensure worker radiation. A measurement used evaluate radiation diffusive and absorption characteristics medium is linear attenuation coefficient ( ). Despite fact that, as moves through medium, its influenced by wavelength well thickness composition crucial in interaction with matter. This resear...

Physicians engaged in management of burn patients in India need to keep themselves abreast with the legal requirements. Clinical burn management and liaison with local authorities go almost parallel. Concept of the legal rights of Burn Survivor and the family are emerging now in India. Demarcation between physical impairment status and disability to sustain are discussed. Burn Physicians can he...

The arrival of spring means yet another round in the national debate over executive compensation. But the critics have it wrong. The relentless attention on how much CEOs are paid diverts public attention from the real problem-how CEOs are paid. The authors present an in-depth statistical analysis of executive compensation. The study incorporates data on thousands of CEOs spanning five decades....

We describe a reflection scheme that allows Bragg-spaced semiconductor quantum wells to be used to trap, store, and release light. We study the temporal and spectral distortion of delayed light pulses and show that this geometry allows multibit delays and offers a high degree of distortion compensation.

author reports a case of 67- years- old men referred to donga university hospital silicosis who had worked in tunnel drilling where presumably had been exposed to high concentration free silica for almost 20 yr. this report is considered the first in korea to the best of our knowledge since no cases on silicosis could be reported in this occupation in reviewing various literature sources in kor...

In 2002, the U.S. Nuclear Regulatory Commission (NRC) revised its regulations governing the use of byproduct materials for medical purposes (10 CFR Part 35). These changes were the result of a detailed, 4-year examination of the issues surrounding the medical use program of the NRC and are stated in the latest revision to its medical policy statement, published in the Federal Register on August...

This paper provides a collection of data relevant to the use of various types of semiconductor detector in nuclear spectroscopy and gives examples of the use of detectors in specific experimental applications. Basic data on absorption of various kinds of radiation in germanium and silicon are given, and these are related to the characteristics of different types of semiconductor detectors. A br...

The collection, processing, validation, verification, formatting, filing, and storage of the required input data are some of the most important components in the National Institute for Occupational Safety and Health (NIOSH) Radiation Dose Reconstruction Program. Without question, the quality and scientific validity of the reconstructed dose estimates are totally dependent on these aspects of th...

A major source of oppression in industrial and post-industrial society is the restrictive and highly authoritarian nature of the workplace. One response is to democratize the workplace by increasing the participation of workers in making decisions and in choosing and evaluating managers as well as sharing in the ownership of the firm. These are not new ideas, and there are many examples of orga...

In September 1999 a criticality accident occurred in a uranium processing plant in Tokai-mura, Japan. During the accident, three workers (A, B and C) were exposed to high acute doses of neutrons and γ-rays: workers A and B fatally and worker C to an estimated whole body absorbed dose of 0.81 Gy neutrons and 1.3 Gy γ-rays. We obtained fixed peripheral blood lymphocytes (PBL) preparations from wo...