Among soluble radioactive products of uranium nuclear fission entering a body iodine radioisotopes are the main radiation hazards. The impact selectively accumulated by thyroid on depends absorbed dose to gland, they can cause hypothyroidism or athyreosis. Athyreosis non-radiation origin is characterized metabolism decline, fatigue, bradycardia, cessation hair growth, roughness skin, alopecia, ...

For a graph G with a given list assignment L on the vertices, we give an algebraic description of the set of all weights w such that G is ( ) w L, -colorable, called permissible weights. Moreover, for a graph G with a given list L and a given permissible weight w, we describe the set of all ( ) w L, -colorings of G. By the way, we solve the channel assignment problem. Furthermore, we describe t...

P-V or Q-V curve are commonly used to determine the maximum permissible load or static voltage stability limit of a power system. Voltage versus current relation approximation is presented as a tool to assessThe voltage stability limit.determination of the maximum permissible loading of a power system is essential for operating the system with an adequate security margin. A very simple and stra...

Kidney tissue sections were obtained at autopsy from seven persons with a history of low level occupational exposure to uranium and histologically compared in a blind study with similar sections obtained from six reference cases. The pathologist was unable to identify the uranium workers or any uranium-specific nephropathy. This suggests that the chronic low level of kidney uranium concentratio...

This paper presents a statistical framework for recognising 2D shapes which are represented as an arrangement of curves or strokes. The approach is a hierarchical one which mixes geometric and symbolic information in a three-layer architecture. Each curve primitive is represented using a point-distribution model which describes how its shape varies over a set of training data. We assign stroke ...

Extremely strong magnetic fields at the frequencies used in an electromagnetic articulometer (EMA) system may pose a risk to the health of a subject. To avoid such risks, the field strengths produced by any EMA system should be measured, and compared to published permissible exposure standards. This letter reports measurements of the 2-50kHz magnetic field strength of the Carstens Articulograph...

background lead and cadmium as two of the main industrial pollutants can cause strong negative effect on humans and animals. rice (oryza sativa) is a plant of the grass family, which provides the bulk of the human diet throughout asia, i.e. feeds more than half of the world’s human population. this study was conducted to determine cadmium and lead contents of cultivated rice grown in khuzestan ...

The first-order sampling of multi-band bandpass signals with arbitrary band positions is considered in this paper. Gaps between the spectral sub-bands are utilized to achieve lower sampling rates than the Nyquist. The lowest possible sampling rate along with other permissible sampling rates is identified via a unique partition of the frequency axis. With the complete identification of all the p...

The study was conducted in 2013/14 with the objective of determining the effects of Bahir Dar textile factory effluents on the head of Blue Nile River water quality. Dissolve oxygen was higher at the upstream site of the river, whereas BOD5, TDS, and total alkalinity values were higher at wastewater outlet of the factory site. The mean values of dissolved oxygen, BOD5, and total alkalinity were...