نتایج جستجو برای: healthy volunteer

تعداد نتایج: 286124  

2015
Sören Johst Stefan Maderwald Anja Fischer Harald H. Quick Mark E. Ladd Stephan Orzada

When performing non-enhanced time-of-flight MR angiography of the lower extremity arteries at 7 T with cardiac triggering, the acquisition time is a crucial consideration. Therefore, in previous studies, saturation RF pulses were applied only every second TR. In the axial source images a slight artifact with an appearance similar to aliasing could be observed. The purpose of this study was to i...

Journal: : 2021

The main reason why people are directed to rehabilitation services after stroke-like neurological diseases bring individuals' daily abilities a normal level. Measuring the activities of in their lives ensures that these progress more healthily. In our study, Brunnstrom Hemiplegia Recovery Staging, which is widely used by doctors evaluate movement function stroke patients during rehabilitation, ...

2008
Charles A. Cusack

We describe volunteer computing games, a new paradigm for computing which merges volunteer computing and online casual games. In volunteer computing, the main goal is to harness the computational power of many users’ computers to solve a large computational problem. Unfortunately, participants in volunteer computing come from a very limited demographic—primarily middle-aged male computer expert...

2017
Christina D. Economos Stephanie Anzman-Frasca Alyssa H. Koomas Grace Chan Sara C. Folta Julianne Heck Molly Newman Jennifer M. Sacheck

BACKGROUND Tens of millions of children regularly participate in out-of-school-time (OST) programs, providing an opportunity for child health promotion. Most research on OST has focused on structured, staff-led after-school programs, as opposed to volunteer-led programs such as enrichment programs and youth sports. The aim of this study was to describe snacks, beverages, and physical activity (...

Journal: :iranian journal of basic medical sciences 0
mojgan shaiegan blood transfusion research center, high institute for research and education in transfusion medicine, immunohematology department, tehran, iran mahbobeh rasouli blood transfusion research center, high institute for research and education in transfusion medicine, tehran, iran maryam zadsar blood transfusion research center, high institute for research and education in transfusion medicine, microbilogy department, tehran, iran sima zolfaghari blood transfusion research center, high institute for research and education in transfusion medicine, immunohematology department, tehran, iran

objective(s):human cytomegalovirus (cmv), a double-strand dna herpesvirus, can be transmitted via blood transfusion which is especially important for immunocompromised recipients and can cause a fatal infection. cmv seroprevalence in iran was studied on blood donors, healthy subjects, and some patients. highly variable rates were detected. the purpose of this study was to review cmv seroprevale...

2012
Fanzhi Anita Zhou Greg Davis

Task selection, previously thought to operate only under conscious, voluntary control, can be activated by unconsciously-perceived stimuli. In most cases, such activation is observed for unconscious stimuli that closely resemble other conscious, task-relevant stimuli and hence may simply reflect perceptual activation of consciously established stimulus-task associations. However, other studies ...

Journal: :J. UCS 2014
Davide Vega Roc Meseguer Felix Freitag Sergio F. Ochoa

Volunteer computing is a paradigm in which devices participating in a distributed environment share part of their resources to help others perform their activities. The effectiveness of this computing paradigm depends on the collaboration attitude adopted by the participating devices. Unfortunately for software designers it is not clear how to contribute with local resources to the shared envir...

Journal: :Age and ageing 1999
F C Stevens C D Kaplan R W Ponds J P Diederiks J Jolles

OBJECTIVES To explore the relationships between lifestyle and memory, and determine whether social factors influence memory. METHODS the relationship between memory and lifestyle was examined in 497 adults aged 25-80 years, using the Mectamemory in Adulthood questionnaire. We asked about sports activity and perceived activity, participation in voluntary organizations and social contacts. RE...

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