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Sleep quality and its parameters in schoolchildren

Zhurnal nevrologii i psikhiatrii im. S.S. Korsakova, 2017
Sleep disorders are very common among teenagers. One of possible reasons is a discrepancy between social and biological activity of children. It is known that adolescents with a late chronotype (e.g., a later midpoint of sleep) have a lowered academic achievement.
S N, Kolomeichuk, L I, Teplova
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Air Quality and Characteristic Community Parameters

Journal of the Air Pollution Control Association, 1968
Statistical correlations between all pairs of 16 selected air quality measurements and 13 selected community parameters for 66 standard metropolitan statistical areas have been calculated, tested for significance, and reviewed for meaningful relationships. Some of the more meaningful relationships are presented in this paper.
T B, McMullen   +3 more
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Iris Image Quality Assessment Based on Quality Parameters

2014
Iris biometric for personal identification is based on capturing an eye image and obtaining features that will help in identifying a human being. However, captured images may not be of good quality due to variety of reasons e.g. occlusion, blurred images etc.
Sisanda Makinana   +2 more
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Fundamental image quality parameters of poroelastography

2011 IEEE International Symposium on Biomedical Imaging: From Nano to Macro, 2011
Poroelastography is an emerging elastographic technique that aims at imaging the temporal mechanical behavior of fluid-filled tissues. While standard elastographic methods focus primarily on the visualization of soft and hard tissue regions as being indicative of tissue pathological changes, poroelastography allows imaging several novel parameters that
Raffaella Righetti   +2 more
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Phthalate esters and semen quality parameters

Biological Mass Spectrometry, 1987
Analysis of reports in the world's literature suggests that average sperm densities for groups of unselected males were relatively constant at about 108 million cells per ml prior to 1950. Subsequent to that time mean sperm densities appear to have declined.
D A, Murature   +3 more
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Quality Parameters in IMS/NGN Networks

2019 International Conference on Software, Telecommunications and Computer Networks (SoftCOM), 2019
The Next Generation Network (NGN) architecture, including elements of the IP Multimedia Subsystem (IMS) concept, is a proposition of a telecommunication network dedicated to the needs of current and future information society. The main goal of NGN is to provide Quality of Service (QoS), for which proper network design is necessary with respect to among
Sylwester Kaczmarek, Maciej Sac
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Lighting Quality Parameters

2014
The quality of a road-lighting installation is expressed in terms of photometric criteria that influence both visual performance and visual comfort. There are two different categories of quality parameters: parameters using solely photometric units and parameters using performance metrics. Examples of the latter category are revealing power, visibility
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Influence of Processing on Quality Parameters of Strawberries

Journal of Agricultural and Food Chemistry, 2008
To determine the effects of different processing steps, such as enzymatic treatment of the mash and pasteurization, on selected quality parameters, strawberries were processed to juices and purees. To identify the processing steps causing the highest losses, samples were taken after each step, and ascorbic acid, total phenols, anthocyanins, and ...
Annetta, Hartmann   +4 more
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Parameters of Digital Detectors and Image Quality

Biomedical Engineering, 2009
The input dose for an ideal digital detector depends quadratically on the threshold contrast detail detectability (TCDD). The TCDD at the level of image quality sufficiency should be minimized for diagnosis; initial parts of detector amplitude response, as well as pulse fluoroscopy adapted to organ mobility, should be used.
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Identification of pork quality parameters by proteomics

Meat Science, 2007
A major parameter for quality of pork is its waterholding capacity (WHC). Prediction of WHC immediately after slaughter would be of benefit both to slaughterhouses for reasons of better logistics and/or branding of premium-meat, and to consumers for improved quality of meat products such as ham. In our pilot study on proteome analysis of porcine muscle
van de Wiel, D.F.M., Zhang, W.L.
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