نتایج جستجو برای: 17

تعداد نتایج: 273973  

2016
Patrick Watson-Williams

on this volume, which contained many beautiful drawings and original scientific contributions. The actual inception of the Journal has been recorded by Mr. L. M. Griffiths, for seventeen years Assistant Editor.1 After referring to the preceding Transactions, he continued : " Another four years passed (i.e. 1882) and some members of the Committee thought the time had arrived for the publication ...

Journal: :Public health nutrition 2010
Natalie Pearson Andrew J Atkin Stuart J H Biddle Trish Gorely Charlotte Edwardson

OBJECTIVE To examine associations between parenting styles, family structure and aspects of adolescent dietary behaviour. DESIGN Cross-sectional study. SETTING Secondary schools in the East Midlands, UK. SUBJECTS Adolescents aged 12-16 years (n 328, 57 % boys) completed an FFQ assessing their consumption of fruit, vegetables, unhealthy snacks and breakfast. Adolescents provided informatio...

2015
Matthias Sutter Daniela Glätzle-Rützler Loukas Balafoutas Simon Czermak

We study the willingness to compete of 588 children and teenagers aged ten to seventeen. We replicate the gender difference in tournament entry choices usually found in the literature for adults. We then show that policy interventions like quotas and preferential treatment help to close down the gender gap without leading to losses in efficiency, during or after a tournament. Given that differe...

ژورنال: :journal of dental school, shahid beheshti university of medical sciences 0
معصومه مسلمی masoumeh moslemi dental school, shahid beheshti university of medical sciences, tehran-iran ([email protected])دانشکده دندانپزشکی و مرکز تحقیقات دندانپزشکی، دانشگاه علوم پزشکی شهید بهشتی مریم خلجی maryam khalaji مژده بقایی انارکی mojdeh baghaie anaraki

سابقه و هدف: سایش های دندانی شامل attrition، abrasion و erosion برای سالیان دراز مورد توجه بوده، اما نقش اروژن که به صورت از دست رفتن ساختمان دندان در ارتباط با مصرف مواد غذایی اسیدی در جوانان می باشد، در حال حاضر مورد تاکید بیشتر قرار گرفته است. هدف این تحقیق تعیین اپیدمیولوژی اروژن در دختران دبیرستانی 17-14 ساله در شهر قزوین بود.مواد و روشها: این تحقیق به روش توصیفی و از نوع مقطعی cross secti...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه محقق اردبیلی - دانشکده علوم کشاورزی 1393

بابونه آلمانی با نام علمیmatricaria chamomilla l. به دلیل دارا بودن اسانس و متابولیت های ثانویه از اهمیت دارویی ویژه ای برخوردار است. به منظور مطالعه اثر هورمون های استروئیدی بر القای کالوس و باززایی گیاه بابونه در شرایط درون شیشه ای، آزمایشی به صورت طرح کاملا تصادفی با استفاده از ریزنمونه برگ و هیپوکوتیل در محیط کشت ms حاوی غلظت های مختلف هورمون های جنسی پروژسترون، تستوسترون و 17 بتا-استرادیول...

2003
Cath Deacon

Australia has three permanent scientific stations in Antarctica – Casey, Mawson and Davis and a permanent station on Macquarie Island in the sub-Antarctic. These stations are manned year round with populations varying from as few as 14 over the winter months to over 60 in summer. Summer personnel may spend only a couple of months at a station whereas wintering groups may spend as long as sevent...

Journal: :Sao Paulo medical journal = Revista paulista de medicina 2016
Maria Fernanda Tourinho Peres Fernanda Babler Juliana Naomy Lacerda Arakaki Irene Yamamoto do Vale Quaresma Abraão Deyvid Alves de Lima Barreto Andréa Tenório Correia da Silva José Eluf-Neto

CONTEXT AND OBJECTIVE High prevalence of mistreatment among medical students has been described in the worldwide literature since the 1980s. However, studies addressing the severity and recurrence of victimization and its effects on students' perceptions of their medical course are scarce. This study had the aim of estimating the prevalence of exposure to mistreatment that was considered to be ...

Journal: :The British journal of ophthalmology 1989
R N Downes J R Collin

The use of a Mersilene mesh sling in brow suspension ptosis surgery is presented. Seventeen cases of severe blepharoptosis have been treated by means of this sling with favourable results. Materials used in brow suspension procedures are categorised and discussed, and it is concluded that the Mersilene sling is an alternative to those currently available for the management of severe blepharopto...

Journal: :American journal of diseases of children 1992
N J Blum T A Lieu

OBJECTIVE To determine the content and urgency of pages and their effect on the activities of pediatric residents. DESIGN Prospective survey. SETTING University-affiliated teaching hospital. PARTICIPANTS Seventeen pediatric residents on regular pediatric services. INTERVENTIONS None. MEASUREMENTS/MAIN RESULTS On daily logs, interns recorded the activity interrupted by a page and rated...

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