abstract. topological indices are the numerical value associated with chemical constitution purporting for correlation of chemical structure with various physical properties, chemical reactivity or biological activity. graph theory is a delightful playground for the exploration of proof techniques in discrete mathematics and its results have applications in many areas of sciences. a graph is a ...

The purpose of this study is to investigate and analyze factors affecting the energy intensity in provinces of Iran with emphasis on information and communications technology (ICT) index, during the period from 2010-2015. Weighted Average Least Square (WALS) method and information criteria have been applied to select the model; so that, based on WALS method, six variables among various effectiv...

BACKGROUND AND OBJECTIVES Skeletal muscle and skeletal muscle indices in young adults from developing countries are sparse. Indices and the corresponding cut-off points can be a reference for diagnoses of sarcopenia. This study assessed skeletal muscle using dual-energy X-ray absorptiometry (DXA) in healthy male and female subjects aged 20-40 years and compared their appendicular skeletal muscl...

a) Energy-momentum Based on Noether’s theorem, construct the energy-momentum tensor for classical electromagnetism from the above Lagrangian. Note that the usual procedure does not result in a symmetric tensor. To remedy that, we can add to T μν a term of the form ∂λK λμν , where K is antisymmetric in its first two indices. Such an object is automatically divergenceless, so T̂ μν = T μν + ∂λK λμ...

With growing amounts of wind and solar power in the electricity mix many European countries, understanding predicting variations renewable energy generation at multiple timescales is crucial to ensure reliable systems. At seasonal scale, balance between supply demand mostly determined by large-scale atmospheric circulation, which uncertain due climate change natural variability. Here we employ ...

Abstract

To characterize the radiation dose distribution in the target volume, various dosimetric indices are required which assist in making a choice of an optimum treatment plan. This study is primarily aimed at the analysis of various radiation dose indices essential for the evaluation of therapeutic plans by employing Intensity Modulated Radiotherapy (IMRT) on head and neck cancer patients. A group ...