نتایج جستجو برای: radiation sickness

تعداد نتایج: 249894  

Journal: :Human factors 2002
L. James Smart Thomas A. Stoffregen Benoît G. Bardy

We investigated whether postural instability can predict motion sickness and studied relations among instability, motion sickness, and vection. Nine men and 4 women (mean age = 19.85 years) were exposed, while standing, to an optical simulation of body sway. Head motion was recorded using a magnetic tracking system. Postural instabilities were observed prior to the onset of motion sickness. Vec...

Journal: :Applied sciences 2021

Activated charcoal (AC) can be taken orally as enterosorbent for treatment of pathological states related to exogenous and endogenous intoxications. Synthesized granulated AC with a highly developed active surface (SBET ~2700 m2/g) was used medical countermeasure (MCM) acute radiation sickness (ARS) in rats after total body X-ray irradiation. demonstrates positive results ARS treatment, express...

Journal: :Vision Research 1999
W. S Jagger P. J Sands

Cephalopods and fish have had no common ancestor since the Cambrian, and their eyes are a classic example of convergent evolution. The octopus has no cornea, and immerson renders the trout cornea optically ineffective. As a result, the nearly spherical lens is responsible for all refraction in these eyes. In spite of the fact that the octopus lens consists of two joined parts, while the trout l...

2013
Richard Bränström Britt Arrelöv Catharina Gustavsson Linnea Kjeldgård Therese Ljungquist Gunnar H Nilsson Kristina Alexanderson

BACKGROUND Physicians' work with sickness certifications is an understudied field. Physicians' experience of sickness certifying for longer periods than necessary has been previous reported. However, the extent and frequency of such sickness certification is largely unknown. The aims of this study were: a) to explore the frequency of sickness certifying for longer periods than necessary among p...

Journal: :Swiss medical weekly 2015
Sarah Kedzia Regina Kunz Andreas Zeller Thomas Rosemann Peter Frey Johanna Sommer Lilli Herzig Kristina Alexanderson Wout E L de Boer

QUESTIONS UNDER STUDY Studies from several countries (Scandinavia, United Kingdom) report that general practitioners (GPs) experience problems in sickness certification. Our study explored views of Swiss GPs towards sickness certification, their practice and experience, professional skills and problematic interactions with patients. METHODS We conducted an online survey among GPs throughout S...

2011
Petra C. Koopmans Ute Bültmann Corné A. M. Roelen Rob Hoedeman Jac J. L. van der Klink Johan W. Groothoff

PURPOSE Common mental disorders (CMDs) are an important cause of work disability. Although CMDs are known to have high recurrence rates, little is known about the recurrence of sickness absence due to CMDs. This study examines the recurrence risk of sickness absence due to CMDs. METHODS A cohort of 9,904 employees with a sickness absence due to CMDs, working in the Dutch Post or Telecommunica...

2017
Åsa Snöljung Jenny Kärrholm Elin Hinas Kristina Alexanderson

Rationale and Aims Most studies on physicians' sickness certification practices include general practitioners (GP) while there hardly is any knowledge on this regarding neurologists although neurological diseases often involve work incapacity and need of sick leave. Aim The aim was to describe experiences among neurologists in Sweden concerning their work with sickness certification of patien...

2008
D. M. Worrall M. Birkinshaw

We report the first detection, with Chandra, of X-ray emission from the jet of the powerful narrow-line radio galaxy 3C 346. X-rays are detected from the bright radio and optical knot at which the jet apparently bends by about 70 degrees. The Chandra observation also reveals a bright galaxy-scale atmosphere within the previously-known cluster, and provides a good X-ray spectrum for the bright c...

Journal: :Human factors 2014
Panagiotis Matsangas Michael E. McCauley William Becker

OBJECTIVE In this study, we investigated the effects of mild motion sickness and sopite syndrome on multitasking cognitive performance. BACKGROUND Despite knowledge on general motion sickness, little is known about the effect of motion sickness and sopite syndrome on multitasking cognitive performance. Specifically, there is a gap in existing knowledge in the gray area of mild motion sickness...

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