نتایج جستجو برای: human trends

تعداد نتایج: 1778833  

Journal: :مرتع و آبخیزداری 0
مجتبی نساجی زواره دانشجوی دکتری اقلیم شناسی دانشگاه تبریز، عضو هیئت علمی مؤسسه آموزش عالی علمی-کاربردی جهاد کشاورزی، سازمان تحقیقات آموزش و ترویج کشاورزی، تهران، ایران علی محمد خورشید دوست استاد گروه اقلیم شناسی دانشگاه تبریز، ایران علی اکبر رسولی ستاد گروه اقلیم شناسی دانشگاه تبریز، ایران علی سلاجقه استاد دانشکده منابع طبیعی، دانشگاه تهران، ایران

temperature and precipitation are among important atmospheric parameters for watershed planning. assessment of temperature and precipitation trends is very important for future watershed planning. in this paper, trends of atmospheric parameters such as seasonal and annual temperature and precipitation were examined for the synoptic stations of bandar anzali, rasht, ramsar, babolsar and gorgan. ...

پایان نامه :دانشگاه تربیت معلم - تهران - دانشکده روانشناسی و علوم تربیتی 1391

the purpose of this study was the relationship between problem – solvi ability with fdi cognitive style of students.the research method was correlation method. for data analysis pearson test was used. statistical society in this research was all the students of alligoodarz city in 1391-92 year.to sampling of statiscal population was used sampling multi-stage random the size of sample selected 2...

Journal: :iranian red crescent medical journal 0
gohar mohammadi cancer research center, shahid beheshti university of medical sciences, tehran, iran mohammad esmaeil akbari cancer research center, shahid beheshti university of medical sciences, tehran, iran; cancer research center, shahid beheshti university of medical sciences, tehran, iran yadollah mehrabi department of epidemiology, school of public health, shahid beheshti university of medical sciences, tehran, iran ali ghanbari motlagh cancer prevention department, mohme, tehran, iran mohammad heidari research center for modeling in health, institute for futures studies in health, kerman university of medical sciences, kerman, iran shahla ghanbari department of public health, school of health, shahid beheshti university of medical sciences, tehran, iran

conclusions overall, cancer incidence rates had increased in both sexes. many factors were responsible, such as changes in lifestyle, environmental factors, increased life expectancy, improvements in the registration systems, and declining mortality rates due to early detection and treatment. the results of this study provided useful information for the prediction of changes in the incidence an...

Journal: :hepatitis monthly 0
barbara stawinska-witoszynska department of epidemiology, chair of social medicine, poznan university of medical sciences, poland monika zysnarska department of public health, chair of social medicine, poznan university of medical sciences, poland małgorzata krzywinska-wiewiorowska department of epidemiology, chair of social medicine, poznan university of medical sciences, poland; department of epidemiology, chair of social medicine, poznan university of medical sciences, poland. tel/fax: +48-618546822 paulina wojtyła-buciorab department of hygiene, chair of social medicine, poznan university of medical sciences, poland alicja krzyzaniak department of epidemiology, chair of social medicine, poznan university of medical sciences, poland barbara wieckowska department of medical statistics and information technologies, poznan university of medical sciences, poland

background the prevalence of newly-diagnosed cases of chronic hepatitis is decisive for the overall incidence rate of hepatitis b observed in poland. objectives we aimed to determine the chronic hepatitis b incidence trends in poland, taking into consideration the ages, genders, and environments of the patients. methods the study is based on aggregated data from polish descriptive epidemiologic...

Journal: :iranian journal of public health 0
chunhua zhao yana ma chen-wei pan xing chen hongpeng sun

background: obesity has become a serious problem for chinese han nationality. this research aimed to evaluate the prevalence of and trends in obesity among chinese korean nationality children and adolescents (1991–2010). methods: we used data from chinese national surveys on students’ constitution and health (cnssch). cnssch was utilized to monitor chinese students’ health condition and release...

Journal: :جغرافیا و توسعه ناحیه ای 0
ابوالفضل مسعودیان رضا ابراهیمی الهام یاراحمدی

abstract climate change and increase the temperature of the environmental importance of human behavior that is considered in recent years many studies have been devoted .objective of this study is to investigate trend and slope trend monthly of hdd with temperature threshold of 18. mean daily temperature of weather during the statistical period of 44 years (1962-2005) was provided from asfe zar...

Journal: :پژوهش های علوم دامی ایران 0
هادی فرجی آروق علی اصغر اسلمی نژاد محمد رکوعی

the aim of this study was to estimate the genetic and phonotypic trends of somatic cell score in iranian holstein cows. also, the environmental factors affecting this trait are investigated. a total of 375351 test day records of somatic cells take from 54374 animals between year 2002 and 2007 were used in this study. the breeding values were estimated by fitting animal model in asreml software....

Journal: :iranian journal of public health 0
j nouri s azad zarabadi

regarding to the escalating trend of environmental pollutions, especially air pollution in great city of tehran, the perspective and study of the conditions for supply and consumption trends of fuels, with specific to fossil fuels, can lead to formation of significant figures and data. on the other hand, recognition, and if possible, reformation of environmental management schemes in the supply...

Journal: :Remote Sensing 2013
Benjamin I. Cook Stephanie Pau

Pasture ecosystems may be particularly vulnerable to land degradation due to the high risk of human disturbance (e.g., overgrazing, burning, etc.), especially when compared with natural ecosystems (non-pasture, non-cultivated) where direct human impacts are minimal. Using maximum annual leaf area index (LAImax) as a proxy for standing biomass and peak annual aboveground productivity, we analyze...

1999
DIAN J. GAFFEN REBECCA J. ROSS

Climatological annual and seasonal dewpoint, specific humidity, and relative humidity maps for the United States are presented using hourly data from 188 first-order weather stations for the period 1961–90. Separate climatologies were calculated for daytime (three observations per day between 0800 and 1600 LST), nighttime (three observations per day between 2000 and 0400 LST), and the full day ...

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