Toxic Beryllium: New Solutions for a Chronic Problem

Beryllium: A Chronic Problem.

Beryllium is the fourth element in the periodic table and the second lightest metal known. Discovered as an oxide in 1798 by the French chemist L. N. Vauquelin, beryllium was first isolated in 1828, when it was called "glucinium" owing to the sweet taste of its salts. Beryllium is the lightest of all solid, chemically stable substances and has an unusually high melting point (12870C). Silver gr...

Toxic beryllium and genetic testing.

Cancer: Current Research Two prominent medical journals recently published epidemiologic studies [Inskip et al. (1) and Muscat et al. (2)] on cellular telephones and brain cancer. These papers were featured in a front-page story in The New York Times (3). The message of the story was essentially that these were definitive studies that put the question of handheld cell phone hazard to rest. The ...

[A new problem in industrial hygiene; glucinium or beryllium poisoning].

A new approach for data visualization problem

Data visualization is the process of transforming data, information, and knowledge into visual form, making use of humans’ natural visual capabilities which reveals relationships in data sets that are not evident from the raw data, by using mathematical techniques to reduce the number of dimensions in the data set while preserving the relevant inherent properties. In this paper, we formulated d...

a new approach to credibility premium for zero-inflated poisson models for panel data

هدف اصلی از این تحقیق به دست آوردن و مقایسه حق بیمه باورمندی در مدل های شمارشی گزارش نشده برای داده های طولی می باشد. در این تحقیق حق بیمه های پبش گویی بر اساس توابع ضرر مربع خطا و نمایی محاسبه شده و با هم مقایسه می شود. تمایل به گرفتن پاداش و جایزه یکی از دلایل مهم برای گزارش ندادن تصادفات می باشد و افراد برای استفاده از تخفیف اغلب از گزارش تصادفات با هزینه پائین خودداری می کنند، در این تحقیق ...