نتایج جستجو برای: environmental affects

تعداد نتایج: 517782  

Journal: :desert 0
h. joneidi jafari assistant professor, university of kurdistan, sanandaj, iran h. azarnivand professor, university of tehran, karaj, iran a. sadeghipour assistant professor, university of semnan, semnan, iran a. malekian assistant professor, university of tehran, karaj, iran

salinity is one of the environmental factors that have a critical influence on the germination of seeds and plant establishment. salinity affects imbibition, germination and root elongation. in this study, the germination characteristics of matricaria comomilla and thymus deanensis were studied. the purpose of this study was to investigate the effect of salinity on germination of these species....

2002
Francesco Ricci

Environmental policy affects the distribution of market shares if intermediate goods are differentiated in their pollution intensity. When innovations are environment-friendly, a tax on emissions skews demand towards new goods which are the most productive. In this case, the tax has to increase along a balanced growth path to keep the market shares of goods of different vintages constant. Compa...

2011
Daniel Smyk Evangelos Cholongitas Stephen Kriese Eirini I. Rigopoulou Dimitrios P. Bogdanos

Primary biliary cirrhosis (PBC) is a chronic immune-mediated cholestatic liver disease of unknown aetiology which affects mostly women in middle age. Familial PBC is when PBC affects more than one member of the same family, and data suggest that first-degree relatives of PBC patients have an increased risk of developing the disease. Most often, these familial clusters involve mother-daughter pa...

Journal: :Journal of environmental management 2014
Danny T Wang Wendy Y Chen

The question of how foreign direct investment (FDI) affects a host country's natural environment has generated much debate but little consensus. Building on an institution-based theory, this article examines how the institutional development of a host setting affects the degree of FDI-related environmental externalities in China (specifically, industrial sulfur dioxide emissions). With a panel ...

2017
Irena Šímová Marta Rueda Bradford A Hawkins

Understanding how environmental change alters the composition of plant assemblages, and how this in turn affects ecosystem functioning is a major challenge in the face of global climate change. Assuming that values of plant traits express species adaptations to the environment, the trait-based approach is a promising way to achieve this goal. Nevertheless, how functional traits are related to s...

2013
Devendra Pratap Singh Anamika Singh Rakesh Kumar Trivedi

Now in these days’ green house gases is the main cause of global warming and affects the climate in the world. Environmental arguments centre on the need to reduce greenhouse gases (GHGs) emissions for the sake of both the global and local climate, particularly in large cities. Excessive exploitation of natural resources for development has been resulted into many environmental problems like en...

Journal: :The American naturalist 2002
John W Pepper Barbara B Smuts

The evolution of altruism often requires genetic similarity among interactors. For structured populations in which a social trait affects all group members, this entails positive assortment, meaning that cooperators and noncooperators tend to be segregated into different groups. Several authors have claimed that mechanisms other than common descent can produce positive assortment, but this clai...

2016
Gun Jea Yu Kyoung-Min Kwon Hojin Jung

This study aims to expand our understanding of environmental performance by adopting exploration and exploitation concepts, which are key types of firm innovation. We reveal exploration and exploitation as two important antecedents of proactive and reactive environmental performance. We also identify the conditions under which the distinct effects of these two types of innovation are moderated....

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان - دانشکده منابع طبیعی 1392

nowadays, air pollution is a global problem that has had significant growth by technology development, population growth andindustrial development. industrial development brought natural resources deterioration, more manufacturing products, and more environmental pollutants. if pollutant won’t be controlled, human-being and wildlife will face the critical risks. significant release and critical...

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