نتایج جستجو برای: generally changes due to anthropogenic causes eg nutrients
تعداد نتایج: 10819194 فیلتر نتایج به سال:
this study was conducted to investigate the impact of podcasts as a learning and teaching tool on iranian efl learners’ motivation for listening as well as on their listening comprehension ability. the study also investigated the learners’ perception towards listening to podcasts and examined whether the learners were likely to accept podcasts. out of fifty-five intermediate learners studying e...
The current study examines the air quality trends in response to Covid-19-induced lockdowns at various locations Delhi. primary pollutants like NO2, CO, and PM10 have shown reductions during lockdown phase, but magnitude varied significantly different places. Also, lockdown, some areas of Delhi exceeded National Ambient Air Quality Standards. Secondary O3 mixed due complex atmospheric processes...
The changes in soil nutrients and aggregate stability either in short-term or in long-term after fire is very important in forest ecosystems due to their key role in plants growth and preventing soil erosion. In the present investigation the short, medium, and long-term effect of fire was surveyed on these properties for the first time in Iran. For this purpose a plot of Zagros forests was sele...
phytoremediation is an eco-friendly method for removal of pollutants, which can be relied upon as a sustainable technology, if implemented under optimum conditions of plant growth. the effectiveness of water hyacinth, a topical weed, for the removal of zinc (zn) and chromium (cr) ions from aqueous solutions has been presented in this article. the potential of this plant in removing metals by ph...
the methods which are used to analyze microstrip antennas, are divited into three categories: empirical methods, semi-empirical methods and full-wave analysis. empirical and semi-empirical methods are generally based on some fundamental simplifying assumptions about quality of surface current distribution and substrate thickness. thses simplificatioms cause low accuracy in field evaluation. ful...
Satellite data and models suggest that oceanic productivity is reduced in response to less nutrient supply under warming. In contrast, anthropogenic aerosols provide nutrients and exert a fertilizing effect, but its contribution to evolution of oceanic productivity is unknown. We simulate the response of oceanic biogeochemistry to anthropogenic aerosols deposition under varying climate from 185...
Due to global warming and human activities, heat stress (HS) has become a frequent extreme weather event around the world, especially in megacities. This study aims quantify responses of urban HS (UHS) anthropogenic (AH) emission its antrophogenic sensible (ASH)/anthropogenic latent (ALH) components increase size cities south north China for 2019 summer based on observations numerical simulatio...
In this note I would like to approach the question posed in the title, and in the literature, from a purely consequentialist perspective. In other words, I want to ask, would treating extreme poverty as a violation of human rights actually lead to a reduction in poverty, or at least lead to the conditions which would in turn lead to a reduction in poverty? This is not to minimize or deny the im...
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