نتایج جستجو برای: 0081
تعداد نتایج: 104 فیلتر نتایج به سال:
We investigated the central gas systems of E/S0 galaxies by making use of the WFPC2 images of the Hubble Space Telescope archive. We searched the gas systems that were traced by the dust with a new method of making color excess images in F555W − F814W (V − I). Out of 25 sample galaxies, we detected gas system in 14 galaxies. The dust was newly detected in two galaxies that were thought to conta...
BACKGROUND The concentrations of circulating adipokines in dogs with myxomatous mitral valve disease (MMVD) have not been investigated in detail. OBJECTIVES To determine whether serum concentrations of adipokines differ between healthy dogs and dogs with MMVD and whether circulating concentrations depend on the severity of heart failure resulting from MMVD. ANIMALS In the preliminary study,...
ccurrence of severe congestive heart failure or requirement for ntra-aortic balloon pump or cardiopulmonary resuscitation (p .0081). The main and novel findings of this report are: 1) RV involveent in TLVABS is common, transient, and, when present, ortends a longer and more critical hospitalization course as ompared with patients with isolated LV involvement; and 2) RV nvolvement, when present,...
ا توجه به سرطانزایی و سایر خطرات بهداشتی نیترات و نیتریت در آبهای آشامیدنی این مطالعه با هدف بررسی غلظت اینب یونها در آبچاه روستاهای شهرستان ساری در سالهای 1386و 1387و مقایسه مقدار آنها با سطوح استاندارد ایران انجام شده است. در این تحقیق، 152نمونه آب در هر سال از 38مجتمع آبرسانی روستاهای شهرستان ساری که آب آنها از چاه تامین میگردد مورد بررسی قرار گرفت. غلظتیونهای نیترات و نیتریت توسط دستگاه اسپ...
در این مطالعه، مدلی ترکیبی از شبکه های عصبی ماژولار و پردازش تصاویر مادیس برای محاسبۀ دمای سطح زمین، در منطقه ای شامل شهر تهران، ارائه شده است. در این مدل، داده های تصاویر حرارتی با تکیه بر ویژگی های دمای درخشندگی در باندهای حرارتی 31 و 32 میکرومترسنجندۀ مادیس، به منزلۀ ورودی در شبکههای عصبی ماژولار به کار رفته و روش جدیدی براساس ترکیبی از شبکۀ عصبی نگاشت خودسازمانده و الگوریتم بهینه سازی تجمع...
PURPOSE The purpose of this study was to use a clinical simulation to determine whether wear of the internal surface of a titanium implant was greater following connection and loading of a one-piece zirconia implant abutment or a titanium implant abutment. MATERIALS AND METHODS Two implants received zirconia abutments and two received titanium abutments. The implants were secured into four fi...
Quadratic Convex Reformulation (QCR) is a technique that has been proposed for binary and mixed integer quadratic programs. In this paper, we extend the QCR method to convex quadratic programs with linear complementarity constraints (QPCCs). Due to the complementarity relationship between the nonnegative variables y and w, a term yDw can be added to the QPCC objective function, where D is a non...
BACKGROUND Observational studies suggest that the Manchester Acute Coronary Syndromes (MACS) decision rule can effectively 'rule out' and 'rule in' acute coronary syndromes (ACS) following a single blood test. In a pilot randomised controlled trial, we aimed to determine whether a large trial is feasible. METHODS Patients presenting to two EDs with suspected cardiac chest pain were randomised...
Khaliq, Z. 2017. Understanding Complex Diseases and Disease Causative Agents. The Machine Learning way. Digital Comprehensive Summaries of Uppsala Dissertations from the Faculty of Science and Technology 1567. 53 pp. Uppsala: Acta Universitatis Upsaliensis. ISBN 978-91-513-0081-8. Diseases can be caused by foreign agents – pathogens – such as viruses, bacteria and other parasites, entering the ...
Dual-energy X-ray absorptiometry (DEXA) has been used to assess body composition in dogs and cats in several studies, but studies are difficult to compare for several reasons. The aim of the present study was to evaluate whether positioning of dogs or cats in either dorsal or ventral recumbency during DEXA scanning influences results. Dogs and cats that were brought to the University Hospital f...
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