نتایج جستجو برای: environmental condition

تعداد نتایج: 674193  

2014
Garth Herring Collin A. Eagles-Smith Dale E. Gawlik James M. Beerens Joshua T. Ackerman

The physiological condition of juvenile birds can be influenced by multiple ecological stressors, and few studies have concurrently considered the effects of environmental contaminants in combination with ecological attributes that can influence foraging conditions and prey availability. Using three temporally distinct indices of physiological condition, we compared the physiological response o...

Journal: :Environmental monitoring and assessment 2015
Kathleen G Maas-Hebner Michael J Harte Nancy Molina Robert M Hughes Carl Schreck J Alan Yeakley

Increasingly, natural resource management agencies and nongovernmental organizations are sharing monitoring data across geographic and jurisdictional boundaries. Doing so improves their abilities to assess local-, regional-, and landscape-level environmental conditions, particularly status and trends, and to improve their ability to make short- and long-term management decisions. Status monitor...

B. C. Pathak M. Serajuddin, M. Zahid

The freshwater spiny eel, Macrognathus pancalus is an inland water teleost fish commonly known as barred or striped spiny eel found in Asia. The sampling areas were selected which are spatially and geographically different and characterized by different environmental conditions in order to elucidation of ecotype. A total 345 specimens were collected from the sampling sites during January 2008...

2012
Michele Augusto Riva Alessandra Lafranconi Marco Italo D'Orso Giancarlo Cesana

Lead poisoning is one of the earliest identified and most known occupational disease. Its acute effects have been recognized from antiquity when this condition principally afflicted manual workers and slaves, actually scarcely considered by the medicine of that time. The Industrial Revolution caused an epidemic of metal intoxication, urging scientists and physician of that period to study and i...

2014
Ali Khodayari Anupam Chowdhury Costas D. Maranas

Computational strain-design prediction accuracy has been the focus for many recent efforts through the selective integration of kinetic information into metabolic models. In general, kinetic model prediction quality is determined by the range and scope of genetic and/or environmental perturbations used during parameterization. In this effort, we apply the k-OptForce procedure on a kinetic model...

2012
Alexander T. Lowe Robin M. Ross Langdon B. Quetin Maria Vernet Christian H. Fritsen

The first winter in the life cycle of Antarctic krill Euphausia superba is a critical period in which larval survival and recruitment to the adult population are highly sensitive to environmental conditions, yet little is known about larval physiological dynamics during this period. An individual-based model was developed to investigate patterns of larval krill growth and condition factor in re...

Journal: :Journal of mathematical biology 2001
O Diekmann M Gyllenberg H Huang M Kirkilionis J A Metz H R Thieme

This paper is as much about a certain modelling methodology, as it is about the constructive definition of future population states from a description of individual behaviour and an initial population state. The key idea is to build a nonlinear model in two steps, by explicitly introducing the environmental condition via the requirement that individuals are independent from one another (and hen...

2014
Ursulla P. Souza Fabio C. Ferreira Francisco M. de S. Braga Kirk O. Winemiller

Life history theory seeks to explain how environmental variation selects for patterns of investment in growth and survival relative to production and survival of offspring. Seasonal variations in rainfall and temperature provide environmental cues for spawning by many tropical freshwater fishes. To investigate environment–life history associations, we conducted a one-year study of Astyanax inte...

Journal: :journal of research in health sciences 0
shahnaz ojaghi farbod ebadi fard azar

background: for the controlling of hospital infectious, keeping hospitals' environmental health in a good condition is of importance. keeping environmental health situation of hospitals in a good condition is very important to control of hospital infectious. a descriptive survey was performed at the all nine hospitals of kermanshah university of medical sciences, iran, in 1998. methods: the dat...

Introduction: Students in elementary schools due to the physical and behavioral characteristics more than adults have exposed to environmental hazards. This study was conducted to examine the environmental health and safety indices in girls' elementary schools in Ilam city. Materials and methods: This cross-sectional study was carried out via census sampling method in girls' elementary schools...

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