نتایج جستجو برای: 137 extension

تعداد نتایج: 162709  

Journal: :Journal of environmental radioactivity 2014
M H Paller G T Jannik R A Baker

During the operational history of the Savannah River Site (SRS), many different radionuclides have been released from site facilities into the SRS environment. However, only a relatively small number of pathways, most importantly (137)Cs in fish and deer, have contributed significantly to doses and risks to the public. The "effective" half-lives (Te) of (137)Cs (which include both physical deca...

Journal: :international journal of agricultural science, research and technology in extension and education systems 2013
hassan ibrahim zhou jing li min

this research was based on primary data collected through well designed and pre-tested questionnaire, to determine awareness of farmers on extension methods used by adp in kano state of nigeria. multistage sampling technique was used, in which three local governments were randomly selected. secondly, three wards one each from the selected local governments (danbatta, gaya and madobi) were rando...

Journal: :international journal of agricultural science, research and technology in extension and education systems 2013
muhammad israr nafees ahmad dawood jan tahir ali shah m. m. shafi

present study was conducted in the three provinces of pakistan with the objectives to study the curricula relevancy with the participatory extension, supervision and administration and its practical applicability at the field level. for this extension agents of the selected provinces were selected purposively. mail questionnaire were used as instruments for data collection form 227 respondents ...

Journal: :international journal of agricultural science, research and technology in extension and education systems 2013
ajieh patrick chuks

this study examined the accuracy between extension professionals and farmers regarding their perceptions of privatization and commercialization of agricultural extension services. the study was carried out in delta state, nigeria and it had a sample size of 224 respondents comprising of 134 extension professionals of the delta state agricultural programme (dtadp) and 90 farmers that were random...

ژورنال: :تابش و فناوری هسته ای 0
فرهاد ذوالفقارپور هیات علمی در دانشگاه محقق اردبیلی پریسا تقی پور نیار گروه فیزیک، دانشکده علوم پایه، دانشگاه محقق اردبیلی، اردبیل، ایران سارا عظیم خانی گروه فیزیک، دانشکده علوم پایه، دانشگاه محقق اردبیلی، اردبیل، ایران محمد نیکوصفت گروه فیزیک، دانشکده علوم پایه، دانشگاه محقق اردبیلی، اردبیل، ایران

پراکندگی فوتون های گاما به سمت عقب از سطح یک ماده را پس پراکندگی پرتوهای گاما می گویند. در این پژوهش حفاظ های سربی، آلومینیومی و آهنی به شکل دیسک به ضخامت تقریباً 1/0 سانتی متر و قطر 18 سانتی متر ، به منظور بررسی پس پراکندگی تهیه شدند. همچنین یک چشمه ی سزیم 137 بین حفاظ و آشکارساز یدورسدیم قرار داده شد و طیف گامای چشمه ثبت گردید. به منظور بررسی تأثیر ضخامت حفاظ در میزان پس پراکندگی گاما، در هر م...

Journal: :iranian journal of radiation research 0
a.a. fathivand iranian nuclear regulatory authority (inra), national radiation protection department (nrpd), tehran, iran j. amidi iranian nuclear regulatory authority (inra), national radiation protection department (nrpd), tehran, iran g.h. heravi iranian nuclear regulatory authority (inra), national radiation protection department (nrpd), tehran, iran

background: two of the important radionuclides which are entered to environment and human diet are radium-226 (226ra) and cesium-137 (137cs). it is clear that the methods for preparation of foods such as peeling, washing, cooking or frying can affect the dose which is received by human due the to consumption of foodstuffs. an experiment has been performed at the environmental monitoring section...

2011
Ali S. Faris Susan Goheen George Dumitrascu

137 Placenta Percreta, Unusual Presentation Abstract Type: Case Report/Case Series Ali S. Faris, M.B.Ch.B, FIBMS; Leo Jeyaraj, M.D., FRCA; Susan Goheen, M.D., F.R.C.P.C.; George Dumitrascu, M.D., F.R.C.P.C. The Ottawa Hospital Civic CampusType: Case Report/Case Series Ali S. Faris, M.B.Ch.B, FIBMS; Leo Jeyaraj, M.D., FRCA; Susan Goheen, M.D., F.R.C.P.C.; George Dumitrascu, M.D., F.R.C.P.C. The ...

2004
JOHN J. MCCARTHY

0 T verse has been a subject for lively discussion among scholars for at least two centuries. Yet in spite of the length of time that the topic has been under intensive study, no generally accepted solution has emerged. (A brief survey of previous research into the topic is offered by Stuart.)’ Among the different approaches to the problem, the one that seems most productive of insights is that...

2014
Jingwen Yin Juda Lin Xudong Luo Yanyan Chen Zheng Li Guoda Ma Keshen Li

Schizophrenia is a complex genetic disease and characterized by affective, cognitive, neuromorphological, and molecular abnormalities that may have a neurodevelopmental origin. MicroRNAs (miRNAs) are critical to neurodevelopment and adult neuronal processes by modulating the activity of multiple genes within biological networks. MiR-137 as a brain-enriched microRNA, plays important roles in reg...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید