نتایج جستجو برای: we used geographic information system and statistical methods

تعداد نتایج: 17428407  

Journal: :international journal of preventive medicine 0
fatemeh sadeghipour kermany ali goli mehrdad askarian

background:although intellectual disability (id) is a common disability in iran, there is no investigation on the spatial distribution pattern of these patients in national level and the spatial maps for recognition the areas with higher prevalence of ids and local neighborhoods of these regions or effect of socio-demographic factor on this scattering is not still available. this proposition mo...

Journal: :iranian journal of public health 0
mahbubeh saei 1. dept. of epidemiology and biostatistics, school of public health, tehran university of medicalsciences , tehran, iran. kourosh holakouie-naieni 1. dept. of epidemiology and biostatistics, school of public health, tehran university of medicalsciences , tehran, iran. ehsan mostafavi 2. dept. of epidemiology, pasteur institute of iran , tehran, iran. mohammad ali sahraian 3. sina ms research center, dept. of neurology, sina hospital, tehran university of medical sciences , tehran, iran. mahmood mahmoodi 1. dept. of epidemiology and biostatistics, school of public health, tehran university of medicalsciences , tehran, iran. mohammad ali mansournia 1. dept. of epidemiology and biostatistics, school of public health, tehran university of medicalsciences , tehran, iran.

multiple sclerosis (ms) is a disease with high disabling disorders and considerable social and economic impacts. this study was conducted to analyze the spatial distribution of ms disease in tehran, iran during 2001-2012.the existing information in the ms patients' medical files who had registered in iranian ms society (imss), located in tehran office, was used for analysis. the relationship be...

Journal: :caspian journal of environmental sciences 2012
j oladi

ecotourism as the most attractive subset of the tourism industry can contribute to natural resource conservation and local development. although great numbers of people annually visit abbasabad area, in veresk, mazandaran, to enjoy its brilliant landscape and moderate ecologic condition, there is no applicable plan for many natural attractive zones in this area. as a result, some specific well ...

Journal: :journal of water sciences research 2010
m.a bayat h babazadeh m manshouri

water use productivity is one of the most important factors in scientific agriculture. it is equal to 0. 7 kg of production per cubic meter of irrigation water (kg/m3) in iran which is very low in comparison with advanced countries (1 to 2 kg/m3). current research studies temporal and spatialchanges of water use productivity in hamedan province in iran using geographic information system (gis),...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه ولی عصر (عج) - رفسنجان - دانشکده ریاضی 1389

in this thesis, first the notion of weak mutual associativity (w.m.a.) and the necessary and sufficient condition for a $(l,gamma)$-associated hypersemigroup $(h, ast)$ derived from some family of $lesssim$-preordered semigroups to be a hypergroup, are given. second, by proving the fact that the concrete categories, semihypergroups and hypergroups have not free objects we will introduce t...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - دانشکده علوم 1377

in the first chapter we study the necessary background of structure of commutators of operators and show what the commutator of two operators on a separable hilbert space looks like. in the second chapter we study basic property of jb and jb-algebras, jc and jc-algebras. the purpose of this chapter is to describe derivations of reversible jc-algebras in term of derivations of b (h) which are we...

خبیری, فرحناز, طولابی, علی, میری, محمد, نیکونهاد, علی, کرمانی زاده, علیرضا,

Background and Objectives: Public health issues and the spread of disease correlate with geography and always have locational aspects.. Therfore, in this study the spatial analysis of malaria disease reports between 2004-2014 in Bam were investigated using geographic information system (GIS). Materials and Methods: In this cross-sectional study, information on positive cases of malaria were ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علامه طباطبایی 1388

assigning premium to the insurance contract in iran mostly has based on some old rules have been authorized by government, in such a situation predicting premium by analyzing database and it’s characteristics will be definitely such a big mistake. therefore the most beneficial information one can gathered from these data is the amount of loss happens during one contract to predicting insurance ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تبریز 1390

learning a second or foreign language requires the manipulation of four main skills, namely, listening, reading, speaking, and writing which lead to effective communication. it is obvious that vocabulary is an indispensible part of any communication, so without a vocabulary, no meaningful communication can take place and meaningful communication relies heavily on vocabulary. one fundamental fac...

Journal: :journal of mining and environment 2010
m. ziaii a. abedi m. ziaei a. kamkar rouhani a. zendahdel

one of the major strengths of a geographic information system (gis) in geosciences is the ability to integrate and combine multiple layers into mineral potential maps showing areas which are favorable for mineral exploration. these capabilities make gis an extremely useful tool for mineral exploration. several spatial modeling techniques can be employed to produce potential maps. however, these...

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