نتایج جستجو برای: 384 sample selected by cochrane formula

تعداد نتایج: 7392684  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت معلم تهران - دانشکده علوم 1370

determination of uranium in natural water and complex solutions using ion exchange chromatography: a combined procedure using ion exchange chromatography and uv-vis spectrophotometry techniques has been developed to measure uranum in natural water and complex solutions. after conditicing , one hundred milli liters of sample solutions have been passed through an ion exchange column,pachked with ...

Journal: :International journal of epidemiology 2010
David L Schriger Douglas G Altman Julia A Vetter Thomas Heafner David Moher

BACKGROUND Forest plots are graphical displays of findings of systematic reviews and meta-analyses. Little is known about the style and content of these plots and whether published plots maximize the graphic's potential for information exchange. METHODS We examine the number, style and content of forest plots presented in a previously studied cross-sectional sample of 300 systematic reviews. ...

The main objective of this research is the sociological study of the impact of social influences on electoral behavior in Iran's presidential election among citizens living in Mazandaran province. This research is descriptive-analytic and survey is carried out using a researcher-made questionnaire. Using Cochran's formula, 384 individuals were selected as sample size and then statistical sampli...

Journal: :Archives of pediatrics & adolescent medicine 2008
Anne Merewood Reginald Fonrose Marcella Singleton Xena Grossman Tina Navidi John T Cook Tony Pomales

OBJECTIVES To determine the proportion of hospitals distributing free infant formula sample packs in 21 eastern states and the District of Columbia, to investigate any regional trends or timelines associated with discontinuation of formula pack distribution, and to catalog in 2 states the take-home items given to new mothers in addition to, or instead of, formula sample packs. DESIGN Data wer...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - پژوهشکده ادبیات 1391

the major purpose of this study was to develop the translation teacher competency test (ttct) and examine its construct and predictive validity. the present study was conducted in two phases: a qualitative phase as well as a quantitative phase. in the first phase of the study, the author attempted to find out the major areas of competency required for an academic translation teacher. the second...

2015
Yoshihiro Shibata Masato Chiba

Despite the fact that much progress has been made recently in the development of targeted covalent inhibitors (TCIs), their pharmacokinetics (PK) have not been well characterized in the light of extrahepatic clearance (CLextH) by glutathione (GSH)/glutathione S-transferase (GST)-dependent conjugation attributable to the unique electrophilic structure (e.g., acrylamide moiety) of TCI compounds. ...

2011
Miguel Alonso-Alonso Florencia Ziemke Faidon Magkos Fernando A Barrios Mary Brinkoetter Ingrid Boyd Anne Rifkin-Graboi Mary Yannakoulia Rafael Rojas Alvaro Pascual-Leone Christos S Mantzoros

Background: Food intake fluctuates throughout the menstrual cycle; it is greater during the early follicular and luteal phases than in the late follicular (periovulatory) phase. Ovarian steroids can influence brain areas that process food-related information, but the specific contribution of individual hormones and the importance of the prandial state remain unknown. Objective: The objective wa...

Background: Findings and published statistical data show that the fertility rate and the tendency towards childbearing are decreasing in many countries, including Iran. Many personal, social, economic, and cultural factors can cause this decline. Nonetheless, cultural changes have flourished, among other factors in recent years. Therefore, the study aimed to investigate the role of cultural cha...

Journal: :American journal of physiology. Cell physiology 2016
Mingfang Jiang Qiang Yun Feng Shi Guangming Niu Yang Gao Shenghui Xie Shengyuan Yu

Endoplasmic reticulum (ER) stress has been linked to the pathogenesis of Parkinson's disease (PD). However, the role of microRNAs (miRNAs) in this process involved in PD remains poorly understood. Recent studies indicate that miR-384-5p plays an important role for cell survival in response to different insults, but the role of miR-384-5p in PD-associated neurotoxicity remains unknown. In this s...

Farzaneh Rashidi Fakari, Fatemeh Rajab Dizavandi Leila Kargarfard Masoome Nasibi Masumeh Ghazanfarpour, Najmeh Rajabi Gharaii Zahra Hesarinejad

Background: The attitude towards lactation is one of the best predictors of breastfeeding. Iowa Infant Feeding Attitudes Scale (IIFAS) is used to measure the attitude toward lactation. IIFAS is a valid and reliable tool but factorial structure of this tool was reported various in different studies. The aim of this study is to assess factorial structure of IIFAS. Materials and Methods: An extens...

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