نتایج جستجو برای: was higher than epa standard

تعداد نتایج: 5199243  

Journal: :Science 1979
S J Gage

REPORTS Encounter with Venus: L. Colin. Initial Pioneer Venus Magnetic Field Results: Dayside Observations: C. T. Russell, R. C. Elphic, J. A. Slavin . . . . .. .. .. . . . . .... Plasma Waves Near Venus: Initial Observations: F. L. Scarf, W. W. L. Taylor, I. M. Green.................................. Initial Observations of the Pioneer Venus Orbiter Solar Wind Plasma Experiment: J. Wolfe et al...

Journal: :international journal of health studies 0
ghasem hesam 1 1. dept. of occupational health engineering, school of public health, shahroud university of medical sciences, shahroud, iran. ava ghobadi 2 2. student research center, school of public health, shahroud university of medical sciences, shahroud, iran. niloofar ghomi maghsad 2 aliakbar roudbari 3* 3. dept. of environmental health engineering, school of public health, shahroud university of medical sciences, shahroud, iran.

background: developmental activities especially the establishment of more than 20 industrial units in semnan province caused the officers worries about increased concentration of heavy metals in drinking water supplies and probably increasing of health risk at consumers. the aim of the study was to investigate the effect of semnan province industrial development on the health risk level caused ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سیستان و بلوچستان - دانشکده ادبیات و علوم انسانی 1391

during the process of reading, sometimes learners use ineffective and inefficient strategies and some factors may influence their use of strategies. perhaps critical thinking is one of these factors. this study aims to identify those categories of reading strategies that are mostly used by iranian efl learners and to see if there is any significant relationship between the critical thinking abi...

اربابی, محسن, حاتمی منش, مسعود, حسین خضری, پریسا, حق‌شناس, آرش, محمدی برد کشکی, بهزاد, میرزائی, محسن,

Background and purpose: Polycyclic aromatic hydrocarbons (PAH) compounds are amongst the most hazardous environmental pollutants due to some features such as chemical stability, low degradation, bioaccumulation, and high toxicity for living organisms. Their resources are found in Persian Gulf beaches, so, this study aimed at investigating the concentration, source identification, and ecological...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - دانشکده ادبیات و علوم انسانی دکتر علی شریعتی 1392

a large number of single research studies on the effects of strategy-based instruction (sbi) in teaching english as a foreign or second language has been conducted so far. however, the lack of a comprehensive meta-analysis targeting the effectiveness of english language sbi is observed. moreover, the findings of experimental studies regarding the context of the english language, proficiency lev...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیخ بهایی - دانشکده زبانهای خارجی 1391

simplification universal as a universal feature of translation means translated texts tend to use simpler language than original texts in the same language and it can be critically investigated through common concepts: type/token ratio, lexical density, and mean sentence length. although steps have been taken to test this hypothesis in various text types in different linguistic communities, in ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان تهران - پژوهشکده علوم انسانی و اجتماعی 1390

this study attempts to investigate the effect of peers’ revision in comparison to that of the teacher, and whether peers’ comments and teachers’ comments facilitate students’ revision? if yes, which one is more effective? also attempts have been made to see which aspects of language are more highlighted by peers versus teachers when commenting. besides, it is investigating the student’s attitud...

ژورنال: طب جنوب 2019
Azimzadeh , Hamidreza, kuchakzadeh , Mohammadreza, MoslehArani , Asghar, Shojaee Barjoee , Saeid, Sodaiezadeh , Hamid,

Background: In developing countries, air pollution caused by industries constitutes a serious threat to public health. The present study was conducted to determine the dispersion patern and assess the health risks of PM10 emitted from the stacks of a ceramic and tile factory. Materials and Methods: The present descriptive-cross sectional study was performed on a tile and ceramic industry in Ard...

پایان نامه :0 1374

having conducted the experiment and analysed the data, the researcher computed the groups mean scores and variances for the test relating to the research question. as the final atep, a t-test was conodonted for the hypothesis. as noted earlier, the significance level was determined at .05 and .01 respectively. the observed t-value was higher than the critical t-value at. 5 and .01 levels. conse...

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