نتایج جستجو برای: 804

تعداد نتایج: 1337  

Journal: :Optics express 2011
Lew Goldberg Chris McIntosh Brian Cole

A compact, passively Q-switched Nd:YAG laser utilizing a Cr4+:YAG saturable absorber, is end-pumped by the focused emission from an 804 nm vertical-cavity surface-emitting laser (VCSEL) array. By changing the VCSEL operating current, we demonstrated 2x adjustability in the laser output pulse energy, from 9 mJ to 18 mJ. This energy variation was attributed to changes in the angular distribution ...

Journal: :BMJ 1993
N A Gibson A S Hollman J Y Paton

We thank Mr Ron Driver of Luton College for statistical advice, and our practice staff for their patience. 1 Johnson G, Roberts D, Brown R, Cox E, Evershed Z, Goutam P, et al. Infertile or childless by choice? A multipractice survey of women aged 35 and 50. BM3 1987;294:804-6. 2 Greenhall E, Vessey M. The prevalence of subfertility: a review of the current confusion and a report oftwo new studi...

2011
Edward J Ciaccio

Correspondence: ciaccio@columbia. edu Columbia University Medical Center, Harkness Pavilion 804, 180 Fort Washington Avenue, New York NY 10032 Abstract This article is a review of the book: ‘Applied Medical Image Processing: A Basic Course’, by Wolfgang Birkfellner, which is published by CRC Press. Basic information that should be helpful in deciding whether to read the book and whether to use ...

2005

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2013
Yong Sung Kim

CC This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons. org/licenses/by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. *Correspondence: Yong Sung Kim, MD, PhD Department of Gastroenterology, Wonkwang Univers...

2007
David P. MacKinnon

Ob ective.-To test a team-based, educationa intervention designed to reduce ANABOLIC androgenic steroids (AAS) ado escent ath etes' intent to use anabo ic androgenic steroids (AAS) . are used by ath etes to enhance musc e Design.Randomized prospective tria . growth, increase strength, and improve Setting.-Thirty-one high schoo footba teams in the Port and, Ore, area . Physica performance .' -' ...

2007
George Howard

Statistical sciences have recently made advancements that allow improved precision or reduced sample size in clinical research studies. Herein, we review 4 of the more promising: (1) improvements in approaches for dose selection trials, (2) approaches for sample size adjustment, (3) selection of study end point and associated statistical methods, and (4) frequentist versus Bayesian statistical ...

Journal: :Optics letters 2006
Kwang Hyun Song George Stoica Lihong V Wang

An in vivo photoacoustic imaging system was designed and implemented to image the entire small animal head. A special scanning gantry was designed to enable in vivo imaging in coronal cross sections with high contrast and good spatial resolution for the first time to our knowledge. By use of a 2.25 MHz ultrasonic transducer with a 6 mm diameter active element, an in-plane radial resolution of a...

Journal: :Human reproduction 2009
Sesh Kamal Sunkara Arri Coomarasamy Yacoub Khalaf Tarek El-Toukhy

clinical preimplantation genetic diagnosis (PGD) and preimplantation genetic screening (PGS)’. Hum Reprod 2005;20:35–48. Twisk M, Haadsma ML, van der Veen F, Repping S, Mastenbroek S, Heineman MJ, Bossuyt PM, Korevaar JC. Preimplantation genetic screening as an alternative to prenatal testing for Down syndrome: preferences of women undergoing in vitro fertilization/intracytoplasmic sperm inject...

1998
Suzanne Evans Morris

Suzanne Evans Morris, Ph.D. Speech-Language Pathologist New Visions 1124 Robert's Mountain Road Faber, Virginia 22938 (804)361-2285 The ability to swallow safely is the primary prerequisite for becoming an oral feeder. When a child aspirates, oral feedings are often discontinued, and the child is given a feeding tube for eating. Many professionals recommend stopping the use of food at home and ...

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