نتایج جستجو برای: overpopulation

تعداد نتایج: 369  

Journal: :Human biology 2012
Mark A Caudell Robert J Quinlan

Humans exhibit considerable diversity in timing and rate of reproduction. Life-history theory (LHT) suggests that ecological cues of resource richness and survival probabilities shape human phenotypes across populations. Populations experiencing high extrinsic mortality due to uncertainty in resources should exhibit faster life histories. Here we use a path analytic (PA) approach informed by LH...

2017
W Ombelet J Goossens

The consequences of involuntary childlessness in developing countries create more wide-ranging societal problems compared to Western societies, particularly for women. Negative psychosocial and economical consequences for childless couples are often severe and underestimated by the local and international society. Infertility treatment is often limited to certain procedures and certain costumer...

2013
José Antonio Armani Paschoal Vania Del'Arco Paschoal Susilene Maria Tonelli Nardi Patrícia Sammarco Rosa Manuela Gallo y Sanches Ismael Eduvaldo Paulo Sichieri

Overpopulation of urban areas results from constant migrations that cause disordered urban growth, constituting clusters defined as sets of people or activities concentrated in relatively small physical spaces that often involve precarious conditions. Aim. Using residential grouping, the aim was to identify possible clusters of individuals in São José do Rio Preto, Sao Paulo, Brazil, who have o...

2008
Ralph L. Keeney L. Keeney

The purpose of this paper is to indicate the applicability of decision analyses to environmental problems, which we define to be those problems where the alternatives might alter the natural environment. Thus, we are concerned with possible changes in our air, water, and lard caused by, for example, auto emissions, noise, nuclear reactors, extinction of animal or floral species, weather modific...

Journal: :Journal of bacteriology 2007
María A Prieto

Human overpopulation combined with the current lifestyle urges the rational, efficient and sustainable use of natural resources to produce environmentally friendly plastic materials such as polyhydroxyalkanoic acids (PHA), whose production/degradation cycle reduces undesirable wastes and emissions. In this issue Sabirova et al. (15) presents results of paramount importance: a PHA hyper-producer...

2004
S. V. Akkelin

The method that allows to analyse an overpopulation of phase-space in heavy ion collisions in model independent way is proposed within hydrodynamic approach. It makes possible to extract a chemical potential of thermal pions at freeze out irrespective of a form of freeze-out (isothermal) hypersurface in Minkowski space and transverse flows on it. The contributions of resonance (with masses up t...

2017
Darrel J. Kesler

A remotely delivered contraceptive was developed that suppressed estrus and prevented pregnancy in deer with 100-percent efficacy. This contraceptive utilized norgestomet, a potent progestin that is approved by the Food and Drug Administration (FDA) for use in cattle. Although the needle-less norgestomet implant is not FDA approved for use in deer, it is safe for treated animals, humans, and th...

Background & Aims: Overpopulation, advancement of technology and automaton have caused human rest to be exposed to dangers. Orbit and middle third of the face are more vulnerable than other organs. The aim of this study was to assess the characteristics of maxillofacial fractures in patients referring to Urmia Imam Khomeini hospital during a 10-year period and to delineate comparisons with worl...

One of the most comprehensive tools to show the changing trend in urban ecosystems is by providing periodic State of Environment Report (SoER) for cities in national programs, wherein it is quite essential to have a truthful and realistic view of the current state of the environment as well as significant human impacts. Developing countries like Iran are faced with incoherent and deficient SoER...

2013
AarifM. Khan Suhani Bashir

Aim: To identify the prevalence of Hydatidosis in buffaloe-calves, heifers and adults slaughtered in slaughter house of Mirha Exports Pvt. Ltd. between March 2010 to Feb. 2011. Materials and Methods: 2,09,615 buffaloes slaughtered were included in this study and were categorized into three groups (A, B and C) based on their age at the time of ante-mortem examination. Group A consisted of calves...

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