نتایج جستجو برای: بیماری کووید 19

تعداد نتایج: 487438  

ژورنال: :مجله تحقیقات سلامت 0
محمدتقی قانعیان mohammad taghi ghaneian محمدحسن احرامپوش mohammad hassan ehrampoush فاطمه سهل آبادی fatemeh sahlabadi محبوبه موتاب mahboobeh mootab ایرج رضاپور iraj rezapour طاهره جاسمی زاد tahereh jasemizad

مقدمه: رنگ ها دارای ساختار پیچیده بوده و معمولاً سمی و مقاوم به تصفیه بیولوژیک هستند و از طریق جریان فاضلاب صنایع وارد محیط زیست می شوند. هدف از این مطالعه، بررسی مطالعات ایزوترم و سینتیک جذب رنگ راکتیو آبی 19 ((rb19 بر روی پودر ساقه گیاه زرشک از فاضلاب سنتتیک نساجی بوده است. مواد و روشها: این مطالعه در مقیاس آزمایشگاهی انجام گرفت. فاضلاب مصنوعی با حل کردن rb19 در آب مقطر تهیه گردید. غلظت رنگ با...

ژورنال: :مجله دانشگاه علوم پزشکی شهرکرد 0
عیسی محمودی issa mahmoudi shahre kord university of medical sciences رضا عسکری مقدم reza askari moghadam university of tehranدانشگاه تهران - صندوق پستی:14395-1561 محمد هادی معظم mohamad hadi moazzam tehran payame noor universityدانشگاه پیام نور تهران سعید صادقیان saeed sadeghian tehran university of medical sciencesدانشگاه علوم پزشکی تهران - مرکز قلب تهران

زمینه و هدف : با توجه به آنکه خطرات اجرای روش‏های تشخیص تهاجمی در بیماری عروق کرونر‏ از جمله آنژیوگرافی قابل ملاحظه می‏‏باشد و از طرفی تجارب موفقیت آمیزی در مورد روش‏های داده‏ کاوی در پزشکی حاصل شده است؛ لذا این مطالعه با هدف تولید مدلی مبتنی بر تکنیک داده‏ کاوی شبکه‏های عصبی که قابلیت پیش‏بینی بیماری عروق کرونر را داشته باشد انجام شده است.   روش بررسی : در این مطالعه توصیفی-تحلیلی، مجموعه داده...

Journal: :Irish medical journal 2012
M B O'Neill A Kumar

This study evaluated the experiences of non Specialist Paediatric Training Registrars (nonSPTR) in the Irish Healthcare system. The survey explored their adaptation to the healthcare system, skill development, perceptions of training and career development inclusive of working conditions. Thirty nine (53%) doctors responded. The time spent in Paediatrics ranged from 3 to 19 years with a mean of...

Journal: :Biology letters 2011
Nick Neave Kristofor McCarty Jeanette Freynik Nicholas Caplan Johannes Hönekopp Bernhard Fink

Male movements serve as courtship signals in many animal species, and may honestly reflect the genotypic and/or phenotypic quality of the individual. Attractive human dance moves, particularly those of males, have been reported to show associations with measures of physical strength, prenatal androgenization and symmetry. Here we use advanced three-dimensional motion-capture technology to ident...

Journal: :Chronobiology international 2006
Nicole Lamond Renée M Petrilli Drew Dawson Gregory D Roach

For Australian pilots, short layovers (<40 h) are a feature of many international patterns. However, anecdotal reports suggest that flight crew members find patterns with short slips more fatiguing than those with a longer international layover, as they restrict the opportunity to obtain sufficient sleep. The current study aimed to determine whether pilots operating international patterns with ...

2017
Nancy Maddox

Nineteen years after John Snow deduced the famous link between London’s Broad Street water pump and a deadly cholera epidemic ravaging the English capital, a second consequential cholera outbreak erupted on the other side of the Atlantic Ocean. The outbreak began in New Orleans in 1873 and spread along the major mercantile routes, killing hundreds of people.At the 1879 meeting of the Sanitary C...

Journal: :The Ulster Medical Journal 1993
H. G. Calwell

When I qualified in medicine in Belfast in 1929 I had already formed the intention of pursuing my career overseas. I came of a medical family of which five members (my father, his three brothers and a sister) were all in general practice in Belfast so that I had an opportunity, if I wished, of joining an established practice. I had, however, lived through years of civil commotion in my student ...

2015
Jane W. Couperus Colin Quirk

While there is growing understanding of visual selective attention in children, some aspects such as selection in the presence of distractors are not well understood. Adult studies suggest that when presented with a visual search task, an enhanced negativity is seen beginning around 200 ms (the N2pc) that reflects selection of a target item among distractors. However, it is not known if similar...

2012
Peter J. Olver

Nonlinearity is ubiquitous in physical phenomena. Fluid and plasma mechanics, gas dynamics, elasticity, relativity, chemical reactions, combustion, ecology, biomechanics, and many, many other phenomena are all governed by inherently nonlinear equations. (The one notable exception is quantum mechanics, which is a fundamentally linear theory. Recent attempts at grand unification of all fundamenta...

2009
HONG YUAN SATOKO ITO TAKESHI SENGA TOSHINORI HYODO TOHRU KIYONO FUMITAKA KIKKAWA MICHINARI HAMAGUCHI

Human papillomaviruses (HPV) are the main etiological factor for cervical carcinoma. HPV-16 is the most prevalent high-risk HPV-genotype found in HPV-associated cancers. We studied the effect of HPV-16 E7 oncoprotein on cadherin-mediated cell adhesion. The expression of E7 strongly suppressed the cadherin-mediated cell adhesion in the rat fibroblast cell line 3Y1. This suppression was associate...

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