نتایج جستجو برای: change of communities life
تعداد نتایج: 21253582 فیلتر نتایج به سال:
1 There is a divergence of views on future bioenergy deployment that is based in disparate epistemic communities. Integrated assessment models (IAMs) project rising deployment of biomass and biofuels in climate change-mitigation scenarios1,2. In contrast, life-cycle assessments (LCAs) and partial equilibrium models of land-use change emphasize high up-front greenhouse-gas emissions from direct ...
A problem perplexing many ecologists studying natural communities has been how the species of a community coexist without competitive exclusion occurring. Hutchinson named this the 'Paradox of the Plankton', though the question has been asked especially for tropical rain forest and coral reef communities. Twelve mechanisms have been proposed to explain the paradox: 1. Niche Diversification, 7. ...
Anthropogenic landscapes are associated with biodiversity loss and large shifts in species composition and traits. These changes predict the identities of winners and losers of future global change, and also reveal which environmental variables drive a taxon's response to land use change. We explored how the biodiversity of native bee species changes across forested, agricultural, and urban lan...
objective: the main goal of this study is to compare stressful life events and mental health in coronary heart disease (chd) patients and non-patients. method: in this research, 120 participants (n=68 male, n= 52 female) were divided into two groups of patients (n=60) and non-patients (n=60). they were selected from vali asr hospital of meshginshahr (iran) and completed the general health quest...
abstract: sayyed mohammad tabatabaee is accounted as one of the effective persons in iran contemporaneoushistory and his role in the events of iran constitution revolution is inevitable. sayyed mohammad tabatabaee from the time of naser al din shah qajar and arrival to iran, informed of the advantages and the basis of constitution, was in the thought of making the iran rule as a constituti...
recovery is a part of disaster management cycle during which repair and reconstruction takes place, and individuals, groups, and communities retake what they have lost and ideally the risk of future incidents reduces. life recovery is a subjective and multidimensional issue influenced by various factors, whereas valid measurable indicators in evaluating the recovery after disasters are helpful....
In Nigeria, the government is implementing the Free Maternal and Child Health Care Programme (FMCHCP). The policy is premised on the notion that financial barriers are one of the most important constraints to equitable access and use of skilled maternal and child healthcare. In Ebonyi State, Southeastern Nigeria the FMCHCP is experiencing implementation challenges including: inadequate human re...
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