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quality factor

Overview page. Subjects: Chemistry.

or (formerly)

an index of the ability of a given type of ionizing radiation to cause biological damage, depending on the density of the ionization produced...

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Biophysics of NASA radiation quality factors

Francis A. Cucinotta.

in Radiation Protection Dosimetry

September 2015; p ublished online April 2015 .

Journal Article. Subjects: Nuclear Chemistry, Photochemistry, and Radiation. 5323 words.

NASA has implemented new radiation quality factors (QFs) for projecting cancer risks from space radiation exposures to astronauts. The NASA QFs are based on particle track structure...

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quality factor

Overview page. Subjects: Chemistry.

or (formerly)

an index of the ability of a given type of ionizing radiation to cause biological damage, depending on the density of the ionization produced...

See overview in Oxford Index

quality factor

Edited by Andrew J. Butterfield and John Szymanski.

in A Dictionary of Electronics and Electrical Engineering

June 2018; p ublished online June 2018 .

Reference Entry. Subjects: Electronic Engineering. 5 words.

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quality factor

Tony Atkins and Marcel Escudier.

in A Dictionary of Mechanical Engineering

January 2013; p ublished online September 2013 .

Reference Entry. Subjects: Mechanical Engineering. 4 words.

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quality factor

Edited by Richard Cammack, Teresa Atwood, Peter Campbell, Howard Parish, Anthony Smith, Frank Vella and John Stirling.

in Oxford Dictionary of Biochemistry and Molecular Biology

January 2006; p ublished online January 2008 .

Reference Entry. Subjects: Biochemistry. 87 words.

an index of the ability of a given type of ionizing radiation to cause biological damage, depending on the density

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quality factor

Elizabeth Martin.

in The New Oxford Dictionary for Scientific Writers and Editors

January 2009; p ublished online January 2009 .

Reference Entry. Subjects: Language Reference. 26 words.

Symbol: Q A dimensionless quantity associated with electric circuits and equal to the magnitude of the reactance divided by the

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Marital Quality: A Product of the Dyadic Environment or Individual Factors?

David R. Johnson and Alan Booth.

in Social Forces

March 1998; p ublished online March 1998 .

Journal Article. Subjects: Social Sciences. 0 words.

Using longitudinal data from a national probability sample of persons married in 1980, we attempted to ascertain whether stability in marital quality ratings is due to the dyadic properties...

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Associations of Environmental Factors With Quality of Life in Older Adults

Robbert J J Gobbens and Marcel A L M van Assen.

in The Gerontologist

January 2018; p ublished online May 2017 .

Journal Article. Subjects: Geriatric Medicine; Biological Sciences; Psychology; Care of the Elderly; Gerontology and Ageing. 6438 words.

Abstract

Purpose of the Study

Environmental factors play an important role in the quality of life of older people...

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Perspective factor: a novel indicator for the assessment of journal quality

Ryosuke L Ohniwa, Masatsugu Denawa, Mituko Kudo, Keiko Nakamura and Kunio Takeyasu.

in Research Evaluation

December 2004; p ublished online December 2004 .

Journal Article. Subjects: Research Methods; Biological Sciences; Knowledge Management; Social Research and Statistics. 0 words.

‘Impact factor (IF)’ has been practically the only indicator to assess journal quality. However, it has various problems associated with citation analysis, such as the effects of ‘different...

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The quality of risk factor screening during antenatal consultations in Niger

A Prual, A Toure, D Huguet and Y Laurent.

in Health Policy and Planning

March 2000; p ublished online March 2000 .

Journal Article. Subjects: Public Health and Epidemiology. 0 words.

A decade after the first International Conference on Safe Motherhood, maternal mortality remains very high in most West African countries, even in capital cities. The detection of high risk...

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118 Examining Factors That Influence Pig Quality Measured By Weaning Weight.

C E Bruns, R J Noel, B M McNeil, J P Sonderman and T A Rathje.

in Journal of Animal Science

April 2018; p ublished online April 2018 .

Journal Article. 0 words.

Abstract

Maintaining pig quality with increasing litter sizes is an issue currently facing the swine industry. One management practice that has been...

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Theoretical and empirical quality assessment of transcription factor-binding motifs

Alejandra Medina-Rivera, Cei Abreu-Goodger, Morgane Thomas-Chollier, Heladia Salgado, Julio Collado-Vides and Jacques van Helden.

in Nucleic Acids Research

February 2011; p ublished online October 2010 .

Journal Article. Subjects: Chemistry; Biochemistry; Bioinformatics and Computational Biology; Genetics and Genomics; Molecular and Cell Biology. 8715 words.

Position-specific scoring matrices (PSSMs) are routinely used to predict transcription factor (TF)-binding sites in genome sequences. However, their reliability to predict novel binding...

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Factors affecting the quality of life of chronic dialysis patients

Beata Jankowska-Polańska, Izabella Uchmanowicz, Agata Wysocka, Bartosz Uchmanowicz, Katarzyna Lomper and Andrzej M. Fal.

in The European Journal of Public Health

April 2017; p ublished online October 2016 .

Journal Article. Subjects: Public Health and Epidemiology; Economics of Health; Health, Illness, and Medicine. 4077 words.

Abstract

Background: Patients on hemodialysis must adjust their life plans to the treatment. They are aware of losing their health and...

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Semen Quality Factor as an Indicator of Fertilizing Ability for Geese

S. J. Liu, J. X. Zheng and N. Yang.

in Poultry Science

January 2008; p ublished online January 2008 .

Journal Article. 3277 words.

The semen quality factor (SQF) takes into account 3 semen parameters as a means of predicting semen fertilizing ability: semen volume, semen concentration, and the percentage of live and...

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Effective quality factors for neutrons based on the revised ICRP/ICRU recommendations

K. G. Veinot and N. E. Hertel.

in Radiation Protection Dosimetry

December 2005; p ublished online December 2005 .

Journal Article. Subjects: Nuclear Chemistry, Photochemistry, and Radiation. 2474 words.

The quality factor (Q) is intended to relate the biological effectiveness of a radiation to the absorbed dose delivered in tissue. Quality factors are defined as a function of the...

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Association between socioeconomic factors and sleep quality in an urban population-based sample in Germany

Markus P. Anders, Jürgen Breckenkamp, Maria Blettner, Brigitte Schlehofer and Gabriele Berg-Beckhoff.

in European Journal of Public Health

December 2014; p ublished online November 2013 .

Journal Article. Subjects: Public Health and Epidemiology; Economics of Health; Health, Illness, and Medicine. 4589 words.

Background: Good sleep quality is essential for recovery. The risk factors of sleep disorders have been extensively investigated, but there is sparse information on the...

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Complex seismic amplitude inversion for <i>P</i>-wave and <i>S</i>-wave quality factors

Zhaoyun Zong, Xingyao Yin and Guochen Wu.

in Geophysical Journal International

P ublished online May 2015 .

Journal Article. Subjects: Geophysics; Oceanography and Hydrology. 7854 words.

Stratum quality factors (P-wave and S-wave quality factors, Q p and Q s ) have gradually been utilized in...

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Deconstructing Racial Differences: The Effects of Quality of Education and Cerebrovascular Risk Factors

Janessa O. Carvalho, Doug Tommet, Paul K. Crane, Michael L. Thomas, Amy Claxton, Christian Habeck, Jennifer J. Manly and Heather R. Romero.

in The Journals of Gerontology: Series B

July 2015; p ublished online August 2014 .

Journal Article. Subjects: Geriatric Medicine; Psychology; Cognitive Psychology; Gerontology and Ageing. 8866 words.

Objectives.

To evaluate the effects of vascular conditions and education quality on cognition over time in White and African American (AA) older adults.

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Phenotypic traits and resource quality as factors affecting male reproductive success in a toadfish

Aneesh P H Bose, Karen M Cogliati, Nick Luymes, Andrew H Bass, Margaret A Marchaterre, Joseph A Sisneros, Benjamin M Bolker and Sigal Balshine.

Edited by Michael Taborsky.

in Behavioral Ecology

March 2018; p ublished online January 2018 .

Journal Article. Subjects: Ecology and Conservation; Evolutionary Biology; Zoology and Animal Sciences; Animal Behaviour and Behavioural Ecology. 9796 words.

Abstract

A male’s reproductive success often depends on both his phenotypic quality and the quality of the resources he controls. An important and longstanding...

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Oocyte-secreted factors: regulators of cumulus cell function and oocyte quality

Robert B. Gilchrist, Michelle Lane and Jeremy G. Thompson.

in Human Reproduction Update

March 2008; p ublished online January 2008 .

Journal Article. Subjects: Critical Care; Reproductive Medicine. 14597 words.

Oocyte quality is a key limiting factor in female fertility, yet we have a poor understanding of what constitutes oocyte quality or the mechanisms governing it. The ovarian follicular...

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