نتایج جستجو برای: بیشینهسازی امید ریاضی em
تعداد نتایج: 324282 فیلتر نتایج به سال:
Objectives To evaluate the frequency of sex-enhancing medications (S-EM) use and to investigate the demographics and sexual characteristics of the S-EM users amongst a Saudi Arabian male population. Subjects and methods A cross-sectional sample of 1176 Saudi Arabian men was recruited using a web-based survey between 1 January and 1 April 2015. The survey included multiple open and closed ques...
به کارگیری روش شناورسازی به منظور بازیابی ذرات ریز ایلمنیت به علت محدودیت شدید مکانهای فعال روی سطح ایلمنیت و در نتیجه قابلیت ضعیف شناوری این کانی در مطالعه های گذشته امید بخش نبوده است.در این پژوهش، فعالسازی سطحی و پالایش اسیدی قبل از آماده سازی، به منظور بررسی امکان افزایش قابلیت شناوری ایلمنیت مورد توجه قرار گرفته اند. نمونه مورد مطالعه خوراک خط 3 مدار فرآوری کانسار تیتانیوم کهنوج ...
1 Mestre em Saúde UFJF (Universidade Federal de Juiz de Fora Doutorando do Programa de Pós-Graduação em Saúde da UFJF e Técnico Administrativo da UFJF Enfermeiro da Diálise Peritoneal do HU UFJF). 2 Mestre, Programa de Pós-Graduação em Saúde da UFJF (Doutorando, Programa de Pós-Graduação em Saúde da UFJF). 3 Mestre em Saúde pela UFJF (Doutorando, Programa de Pós-Graduação em Saúde da UFJF). 4 P...
We propose an automatic hybrid image segmentation model that integrates the statistical expectation maximization (EM) model and the spatial pulse coupled neural network (PCNN) for brain magnetic resonance imaging (MRI) segmentation. In addition, an adaptive mechanism is developed to fine tune the PCNN parameters. The EM model serves two functions: evaluation of the PCNN image segmentation and a...
EM-652 (SCH 57068) is a new orally active antiestrogen that demonstrates pure antagonistic effects in the mammary gland and endometrium. In vivo studies have shown that EM-652 is primarily glucuronidated at the 7-hydroxy position in rats and that the metabolite is present in the plasma of female monkeys and human subjects after EM-800 (SCH 57050) or EM-652.HCl oral administration. Using hepatic...
سفرهایتحصیلیدانشآموزان در مقایسه با سفرهای کاری از مطالعات کمتر توسعه یافته حملونقلی است. بیشتر مطالعات سفرهای تحصیلی به شناسایی عوامل اقتصادی- اجتماعی و محیطی موثر بر شیوههای سفر تحصیلی پرداخته اند. پژوهش اندکی در زمینه انتخاب وسیله سفرهای تحصیلی کودکان با تمرکز بر متغیرهای پنهان و به خصوص سرویس مدرسه مشاهده میشود. هدف از این مطالعه شناسایی و بررسی عو...
Luane Margarete Zanchetta Marilisa Berti de Azevedo Barros Chester Luiz Galvão César Luana Carandina Moisés Goldbaum Maria Cecília Goi Porto Alves I Departamento de Medicina Preventiva e Social da Faculdade de Ciências Médicas da Universidade Estadual de Campinas UNICAMP. II Departamento de Epidemiologia da Faculdade de Saúde Pública da Universidade de São Paulo – USP. III Departamento de Saúde...
Since 1990, rural communities across the United States, which historically have not been destinations for recent immigrants, have experienced rapid and unexpected growth in their Latino immigrant populations. This is the second of two briefs examining the social and economic integration of Latino immigrants in these new rural destinations. The first brief provided a point-in-time analysis of La...
In this paper we study the risk perception of traffic participants. Firstly, we give an overview of previously used methodologies for the monetary valuation of transport safety. These methodologies do not distinguish between the individual’s assessment of probabilities and her valuation of possible outcomes. A great disadvantage of these approaches is therefore that one has to make the assumpti...
OBJECTIVES To determine whether there are indications for and benefits from electron microscopy (EM) of sperm during the era of assisted reproductive technology. METHODS The medical history, semen analyses, and EM findings of 55 patients with pure male-factor infertility were reviewed to determine: (1) which semen characteristics (seminal volume, sperm concentration, percent motility, and per...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید