نتایج جستجو برای: we planned two experiments

تعداد نتایج: 5954518  

Journal: :International Journal of Behavioral Development 2014

2008
VANNEVAR BUSH

As Director of the Office of Scientific Research and Development, Dr. Vannevar Bush has coordinated the activities of some six thousand leading American scientists in the application of science to warfare. In this significant article he holds up an incentive for scientists when the fighting has ceased. He urges that men of science should then turn to the massive task of making more accessible o...

Journal: :Teachers and Curriculum 2017

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علامه طباطبایی - دانشکده اقتصاد 1389

abstract: about 60% of total premium of insurance industry is pertained?to life policies in the world; while the life insurance total premium in iran is less than 6% of total premium in insurance industry in 2008 (sigma, no 3/2009). among the reasons that discourage the life insurance industry is the problem of adverse selection. adverse selection theory describes a situation where the inf...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - دانشکده علوم 1375

chapter two presents three m-admissible function algebras ab, bd, and sl, to construct the universal abelian, band, and semilattice compactifications, respectively. the main results are (11.3), (12.3), and (12.4). some inclusion relationships between these function algebras and the other well-known ones, presented in section 8, are made via the devico of compactifications. chpter three is about...

2002
J. Gregory Trafton Sandra P. Marshall Farilee Mintz Susan Bell Trickett

How do experienced users extract information from a complex visualization? We examine this question by presenting experienced weather forecasters with visualizations that did not show the needed information explicitly and examining their eye movements. We replicated Carpenter & Shah (1998) when the information was explicitly available on the visualization. However, when the information was not ...

2006
S. V. Subramanian J. T. Chen D. H. Rehkopf P. D. Waterman

The importance of socioeconomic position, measured at multiple levels (e.g., individual, household, area) and across the life course, for studying health disparities is now well recognized (1–7). Our multilevel study (8) reported that individual-based socioeconomic measures (IBSMs) and area-based socioeconomic measures (ABSMs) together capture birth weight inequalities that otherwise would have...

Journal: :Journal of the National Cancer Institute 2014
Suzanne E Dahlberg Geoffrey I Shapiro Jeffrey W Clark Bruce E Johnson

BACKGROUND Phase I trials have traditionally been designed to assess toxicity and establish phase II doses with dose-finding studies and expansion cohorts but are frequently exceeding the traditional sample size to further assess endpoints in specific patient subsets. The scientific objectives of phase I expansion cohorts and their evolving role in the current era of targeted therapies have yet...

Journal: :کشاورزی (منتشر نمی شود) 0
احمد افضل زاده استادیار گروه علوم دامی، پردیس ابوریحان، دانشگاه تهران، پاکدشت رضا افضل زاده استادیار، گروه فیزیک، دانشکده علوم، دانشگاه صنعتی خواجه نصیرالدین طوسی، تهران محمد قراچمنلو کارشناس ارشد رشته مکانیک، دانشگاه صنعتی خواجه نصیر طوسی، تهران

in nutritional experiments the animals are kept in metabolic cage and are fed according to the planned interval times. a machine was designed and fabricated to feed the sheep every one or two hours. the machine operates with 220 volts electricity and the feed storing capacity is designed for three days feeding. the weight of sheep and type of feed determines the amount of feed required. by chan...

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