نتایج جستجو برای: الگوریتم em

تعداد نتایج: 328042  

2017
Abul-Fotouh Ahmed Saad Alshahrani Anthony Morgan Ahmed H. Gabr Mohamed Abdel-Razik Abdallah Daoud

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...

Journal: : 2021

آگاهی از میزان تاج‌پوشش درختان در مناطق شهری به‌علت تأثیرات آن کاهش آلودگی‌‌های هوا، آلودگی صوتی، جلوگیری باد، ذخیرة نزولات آسمانی، و کنترل رواناب‌های بسیار ضروری است. ازآن‌جا‌که استخراج با روش‌های دستی وقت‌گیر پرهزینه است، تکنیک‌های سنجش دور می‌توانند ابزار مناسبی برای تأمین این داده‌ها باشند. طبقه‌بندی شیء‌پایه، انتخاب پارامترهای بهینة قطعه‌بندی، به‌ویژه پارامتر مقیاس، اهمیت بسیاری دارد معمول...

ژورنال: مهندسی حمل و نقل 2018

پل‌ها با هر شکل سازه‌ای که طراحی شوند و با هر نوع مصالحی که ساخته شوند، دیر یا زود آثار فرسودگی در آنها ظاهر می‌شود لیکن در نوع و میزان این فرسودگی‌ها و روند گسترش آنها عوامل متعددی مانند شرایط جوی، وقوع سیل یا زلزله، افزایش بار بیش از میزان طراحی، کیفیت طراحی و اجرا و نوع مصالح تاثیرگذار هستند که تمامی این عوامل چنانچه مورد توجه و رسیدگی قرار نگیرند منجر به کاهش عمر مفید سازه خواهند شد. بن...

Journal: :Jornal brasileiro de nefrologia : 'orgao oficial de Sociedades Brasileira e Latino-Americana de Nefrologia 2012
Edson José de Carvalho Magacho Angelo Cardoso Pereira Henrique Novais Mansur Marcus Gomes Bastos

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...

Journal: :Computerized medical imaging and graphics : the official journal of the Computerized Medical Imaging Society 2010
J. C. Fu C. C. Chen J. W. Chai Stephen T. C. Wong I. C. Li

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...

Journal: :Molecular pharmacology 2001
O Barbier C Albert I Martineau M Vallée K High F Labrie D W Hum C Labrie A Bélanger

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...

2010
Luane Margarete Zanchetta Marilisa Berti de Azevedo Barros Chester Luiz Galvão César Luana Carandina Moisés Goldbaum Maria Cecília Goi Porto Alves

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...

2008
Heather Koball Randy Capps William Kandel Jamila Henderson

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...

2001
Arianne de Blaeij Daniel van Vuuren

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...

Journal: :Urology 1998
D J Carbone J T McMahon H S Levin A J Thomas A Agarwal

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...

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