نتایج جستجو برای: diurnal variation

تعداد نتایج: 308622  

Journal: :Journal of intensive care 2016
Krishnaswamy Sundararajan Arthas Flabouris Campbell Thompson

The type of medical review before an adverse event influences patient outcome. Delays in the up-transfer of patients requiring intensive care are associated with higher mortality rates. Timely detection and response to a deteriorating patient constitute an important function of the rapid response system (RRS). The activation of the RRS for at-risk patients constitutes the system's afferent limb...

Journal: :Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine 2008
I Seftelis G Nicolaou N F Tsagas

The variation of the alpha radioactivity in the air near the ground and the ground-level total gamma radiation has been monitored in North-eastern Greece over several days. Meteorological information regarding the temperature of the air and humidity has been simultaneously recorded. The alpha-radioactivity shows a periodic diurnal variation with a peak in the morning followed by a decrease in t...

2013
Claire Loiseau Ryan J. Harrigan Coraline Bichet Romain Julliard Stéphane Garnier Ádám Z. Lendvai Olivier Chastel Gabriele Sorci

Vector-borne diseases are particularly responsive to changing environmental conditions. Diurnal temperature variation has been identified as a particularly important factor for the development of malaria parasites within vectors. Here, we conducted a survey across France, screening populations of the house sparrow (Passer domesticus) for malaria (Plasmodium relictum). We investigated whether va...

2013
Ajil Kottayil Viju O. John Stefan A. Buehler

[1] Microwave humidity measurements from polar orbiting satellites are affected by diurnal sampling biases which are caused by changes in the local observation time of the satellites. The long-term data records available from these satellites thus have spurious trends, which must be corrected. Diurnal cycles of the microwave measurements have been constructed by combining data over the period 2...

Journal: :iranian journal of radiation research 0
k. charan kumar atmospheric and space science research (assr) lab, department of physics, bangalore university, bangalore 560 056, india t. rajendra prasad national atmospheric research laboratory, gadanki, 517 112, india t. narayana rao national atmospheric research laboratory, gadanki, 517 112, india m. venkataratnam national atmospheric research laboratory, gadanki, 517 112, india k. nagaraja atmospheric and space science research (assr) lab, department of physics, bangalore university, bangalore 560 056, india

background: the variation of the radon progeny concentration in outdoor environment and meteorological parameters at fine resolution were studied for one year at a continental location, national atmospheric research laboratory, gadanki, india.  materials and methods: the concentrations were measured using alpha progeny meter by collecting air samples at a height of 1 m above the earth’s surface...

Journal: :Environmental pollution 2013
Lingfei Yu Hao Wang Guangshuai Wang Weimin Song Yao Huang Sheng-Gong Li Naishen Liang Yanhong Tang Jin-Sheng He

Comparing of different CH4 flux measurement techniques allows for the independent evaluation of the performance and reliability of those techniques. We compared three approaches, the traditional discrete Manual Static Chamber (MSC), Continuous Automated Chamber (CAC) and Eddy Covariance (EC) methods of measuring the CH4 fluxes in an alpine wetland. We found a good agreement among the three meth...

2013
Brijesh K. Mishra Pankaj K. Shrivastava R. K. Tiwari Ajay K. Pandey

Cosmic ray daily variation is directly related with changes in interplanetary conditions. The significant and systematic deviations in the amplitude and phase of the diurnal, semi-diurnal variation of cosmic rays from the average values is due to strong geomagnetic and solar activity. The amplitudes and phases (time of maxima) of first two harmonics of cosmic ray daily variation show 11/22 year...

Journal: :Endocrinology 2002
Behrouz Zandieh Doulabi Marianne Platvoet-ter Schiphorst Hermina C van Beeren Wil T Labruyere Wouter H Lamers Eric Fliers Onno Bakker Wilmar M Wiersinga

We investigated the distribution and diurnal variation of TR(beta)1 protein expression in liver with specific antibodies against TR(beta)1. Immunohistochemistry showed a zonal distribution of TR(beta)1 with maximum expression in the pericentral zone matching some known T(3)-responsive enzyme activities in the liver, such as glutamine synthetase, cholesterol 7alpha- hydroxylase, and spot 14. Com...

Journal: :American journal of physiology. Heart and circulatory physiology 2013
Chester A Ray Charity L Sauder Stephanie A Chin-Sang Jonathan S Cook

Incidences of adverse cardiac events and orthostatic hypotension are associated with diurnal variations. The primary purpose of the present study was to determine if the vestibulosympathetic reflex (VSR) follows a diurnal variation in humans. We hypothesized that the VSR would be attenuated at night based on the relation between melatonin and the VSR. Arterial blood pressure, heart rate, calf b...

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