نتایج جستجو برای: near work

تعداد نتایج: 1182455  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه بوعلی سینا - دانشکده علوم کشاورزی 1390

طی بررسی هائی که جهت جمع آوری و شناسائی فون کنه های بادام در استان چهار محال و بختیاری در سال های 88-1387 انجام شد مجموعا، 23 گونه متعلق به 18 جنس و 8 خانواده جمع آوری و شناسائی شد که 2 گونه برای اولین بار از ایران معرفی گردید که با (*) مشخص شد، و تعداد 3 گونه برای اولین بار در دنیا شناسائی و توصیف گردید که با علامت (**) مشخص شده اند. لیست گونه های گزارش شده بر اساس طبقه بندی راسته و خانواده ب...

2001
Antonella Grassi

In previous work we consideredM -theory five branes wrapped on elliptic Calabi-Yau threefold near the smooth part of the discriminant curve. In this paper, we extend that work to compute the light states on the worldvolume of five-branes wrapped on fibers near certain singular loci of the discriminant. We regulate the singular behavior near these loci by deforming the discriminant curve and exp...

Journal: :Neurophotonics 2017
Ryan Gabbard Mary Fendley Irfaan A Dar Rik Warren Nasser H Kashou

Occupational noise frequently occurs in the work environment in military intelligence, surveillance, and reconnaissance operations. This impacts cognitive performance by acting as a stressor, potentially interfering with the analysts' decision-making process. We investigated the effects of different noise stimuli on analysts' performance and workload in anomaly detection by simulating a noisy w...

Journal: :Work 2012
Hans O Richter Lodin Camilla Mikael Forsman

In an experimental study two levels of oculomotor load were induced via optical trial lenses. Trapezius muscle activity was measured with bipolar surface electromyography and normalized to a submaximal contraction. Sixty-six subjects with a median age of 36 (range 19-47, std 8) viewed a black and white Gabor grating (5 c/deg) for two 7-min periods monocularly through a 0 D lens or binocularly t...

2015
Shi-Ming Li Si-Yuan Li Meng-Tian Kang Yuehua Zhou Luo-Ru Liu He Li Yi-Peng Wang Si-Yan Zhan Bamini Gopinath Paul Mitchell Ningli Wang Chen-Wei Pan

PURPOSE To examine the associations of near work related parameters with spherical equivalent refraction and axial length in Chinese children. METHODS A total of 1770 grade 7 students with mean age of 12.7 years were examined with cycloplegic autorefraction and axial length. Questions were asked regarding time spent in near work and outdoors per day, and near work related parameters. RESULT...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2016
Michael L Lee Mark E Howard William J Horrey Yulan Liang Clare Anderson Michael S Shreeve Conor S O'Brien Charles A Czeisler

Night-shift workers are at high risk of drowsiness-related motor vehicle crashes as a result of circadian disruption and sleep restriction. However, the impact of actual night-shift work on measures of drowsiness and driving performance while operating a real motor vehicle remains unknown. Sixteen night-shift workers completed two 2-h daytime driving sessions on a closed driving track at the Li...

Journal: :Work 2012
Camilla Lodin Mikael Forsman Hans Richter

Frequent use of digital information technology has an impact on eye- and neck/shoulder-discomfort. Studies with cross sectional and intervention design indicate an association between the two symptom categories. Still, whether visually demanding near work, per se, contributes to increased neck/shoulder discomfort remains a question of debate. The aim of this laboratory study was to assess if vi...

2011
Guy E. Blelloch Anupam Gupta Ioannis Koutis Gary L. Miller Richard Peng Kanat Tangwongsan

This paper presents the design and analysis of a near linear-work parallel algorithm for solving symmetric diagonally dominant (SDD) linear systems. On input of a SDD n-by-n matrix A with m nonzero entries and a vector b, our algorithm computes a vector x̃ such that ‖x̃−Ab‖A ≤ ε · ‖Ab‖A in O(m log n log 1ε ) work and O(m log 1 ε ) depth for any fixed θ > 0. The algorithm relies on a parallel algo...

Journal: :Vision Research 2009
Peijun Yao Shiqiang Yang Bai-chuan Jiang

To investigate whether or not peripheral retinal defocus contributes to the refractive development of myopia by influencing the overall accommodative function. The steady-state accommodative stimulus response curve (ASRC) and the near-work induced transient myopia (NITM) after a near visual task were compared between different visual field conditions in emmetropes (EMMs), stable myopes (SMs) an...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید