نتایج جستجو برای: diversity coefficient index

تعداد نتایج: 731304  

2017
Shannon C Davis Jagjit S Yadav Stephanie D Barrow Boakai K Robertson

Human gut microbiome dysbiosis has been associated with the onset of metabolic diseases and disorders. However, the critical factors leading to dysbiosis are poorly understood. In this study, we provide increasing evidence of the association of diet type and body mass index (BMI) and how they relatively influence the taxonomic structure of the gut microbiota with respect to the causation of gut...

Hamid Ahani, Hamid Jalilvand

Forests are biologically diverse systems, representing some of the richest biological areas on Earth. They offer a variety of habitats for plants, animals and micro-organisms. However, forest biodiversity is increasingly threatened as a result of deforestation, fragmentation, climate change and other stressors. Biodiversity is the variation of life forms within a given ecosystem, biome, or on t...

Journal: :International journal of modern physics. B 2016
Daniel J Park Prabhakar Pradhan Vadim Backman

Reflection statistics have not been well studied for optical random media whose mean refractive indices do not match with the refractive indices of their surrounding media. Here, we theoretically study how this refractive index mismatch between a one-dimensional (1D) optical sample and its surrounding medium affects the reflection statistics in the weak disorder limit, when the fluctuation part...

2013
Shilpa Bhardwaj S. Bhardwaj J. Bhattacharjee M. K Bhatnagar S. Tyagi

Coronary artery disease is the epidemic of modern civilization in which dyslipidemia contributes significantly to its pathogenesis. We studied the significance of three important lipid ratios i.e. Atherogenic Index of Plasma (AIP) {(logTG)/HDLc}, Castelli’s Risk Index I & II (TC/HDLc and LDLc/HDLc respectively) and Atherogenic coefficient (AC) {(Non-HDLc)/HDLc} in predicting the risk of CAD. A ...

Journal: :Methods in Ecology and Evolution 2013

Journal: :RELIEVE: Revista Electrónica de Investigación y Evaluación Educativa 2023

This research project was executed to demonstrate a new approach increasing Sense of Belonging individuals groups which they belong. The foundation the lies in application concepts from branch math called Graph Theory. Theory provides and calculations that can be applied understand structures arise when elements interact network. considers individual humans who come together participate some ac...

The diversity and richness of species are of important components to evaluate the health of ecologic system of rangelands. This research was conducted to investigate the biodiversity in riparian and neighboring areas via comparison of indices in Javaherdeh rangeland of Ramsar. Plot-transects was randomly used to estimate diversity, richness, dominance, and evenness indices in two regions. Multi...

اصغرزاده, احمد , حق نیا, غلامحسین , خاوازی, کاظم , کریمی, اسماعیل , لکزیان, امیر ,

  It is important to investigate the genetic diversity and evaluate symbiotic effectiveness of the indigenous rhizobial population. It helps understand the responses of indigenous isolates to different rhizobial inoculants. In spite of the importance of bacterial diversity, there are a few scientific reports about it in Iranian soils. Genetic diversity of 150 isolates of Sinorhizobium isolated ...

Background and Objectives: Dietary habits and nutritional behaviors of people are the food culture of every society. The aim of this study was to investigate factors, which affected food diversity in urban households of Iran.  Materials & Methods: The study was carried out in a cross-sectional and analytical form on 18,627 households. Data were extracted from the Bulletin of Urban Household Ex...

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