نتایج جستجو برای: hot climate

تعداد نتایج: 246788  

Journal: :International journal of food microbiology 2007
Peter J Cotty Ramon Jaime-Garcia

Aflatoxins are potent mycotoxins that cause developmental and immune system suppression, cancer, and death. As a result of regulations intended to reduce human exposure, crop contamination with aflatoxins causes significant economic loss for producers, marketers, and processors of diverse susceptible crops. Aflatoxin contamination occurs when specific fungi in the genus Aspergillus infect crops...

Journal: :Philosophical Transactions of the Royal Society B: Biological Sciences 2008
Luiz Eduardo O.C Aragão Yadvinder Malhi Nicolas Barbier Andre Lima Yosio Shimabukuro Liana Anderson Sassan Saatchi

Understanding the interplay between climate and land-use dynamics is a fundamental concern for assessing the vulnerability of Amazonia to climate change. In this study, we analyse satellite-derived monthly and annual time series of rainfall, fires and deforestation to explicitly quantify the seasonal patterns and relationships between these three variables, with a particular focus on the Amazon...

2015
S. Bloemhof

The number of pig breeding programs has reduced in recent years. This leads to a small number of pig breeding companies producing pigs for many different environments. Therefore, pig breeding programs have to breed pigs capable of facing heat stress challenges during their productive life. Management practices such as cooling offer one option to reduce heat stress and warrant performance during...

2012
J. Lelieveld P. Hadjinicolaou E. Kostopoulou J. Chenoweth M. El Maayar C. Giannakopoulos C. Hannides M. A. Lange M. Tanarhte E. Tyrlis E. Xoplaki

The Eastern Mediterranean and the Middle East (EMME) are likely to be greatly affected by climate change, associated with increases in the frequency and intensity of droughts and hot weather conditions. Since the region is diverse and extreme climate conditions already common, the impacts will be disproportional. We have analyzed long-term meteorological datasets along with regional climate mod...

Journal: :محیط شناسی 0
محمود مولی نژاد استادیار سازمان پژوهش های علمی و صنعتی ایران (irost) و رئیس مرکز منطقه ای علوم و انتقال فناوری (iora rcstt)

introduction climate affects, more than any other factors, the type and form of human life, so that many cities that have made or developed regardless of climatic information are suffering from weather-related problems such as air pollution, water supply and flooding etc. by using the meteorological information in designing new cities as well as developing old cities can reduce the mentioned pr...

2010
JEREMY L. WEISS CHRISTOPHER L. CASTRO JONATHAN T. OVERPECK

Higher temperatures increase the moisture-holding capacity of the atmosphere and can lead to greater atmospheric demand for evapotranspiration, especially during warmer seasons of the year. Increases in precipitation or atmospheric humidity ameliorate this enhanced demand, whereas decreases exacerbate it. In the southwestern United States (Southwest), this means the greatest changes in evapotra...

Journal: :Biology letters 2011
Laurent Godet Mikaël Jaffré Vincent Devictor

Effects of climate change on species occupying distinct areas during their life cycle are still unclear. Moreover, although effects of climate change have widely been studied at the species level, less is known about community responses. Here, we test whether and how the composition of wader (Charadrii) assemblages, breeding in high latitude and wintering from Europe to Africa, is affected by c...

Journal: :علوم باغبانی ایران 0
زهرا کریمیان دانشجوی سابق دکتری دانشکده کشاورزی دانشگاه فردوسی مشهد علی تهرانی فر استاد دانشکده کشاورزی دانشگاه فردوسی مشهد محمد بنایان دانشیار دانشکده کشاورزی دانشگاه فردوسی مشهد مجید عزیزی استاد دانشکده کشاورزی دانشگاه فردوسی مشهد فاطمه کاظمی استاد یاردانشکده کشاورزی دانشگاه فردوسی مشهد

considering high population and hot and arid climate in most cities in iran, creating optimum thermal comfort during the hot periods is necessary. an experiment was conducted to examine the effect of percentage vegetation and hard surfaces on changes of temperature, humidity and thermal comfort of in three urban sites and mashhad weather station was investigated. climate and recorded data from ...

Journal: :تحقیقات جغرافیایی 0
امیر گندمکار دانشگاه آزاد اسلامی واحد نجف آباد

isfahan province is located in central of iran. it has different climate conditions including arid in the east, central and north of the province, mediterranean climate to humid in the west and southern part. generally, this province has a hot and dry climate in summer and cold in winter.this province has natural and cultural attractions, it has a high potential in attracting visitors. but this...

Hadi Tavakkoli, Sajedeh Salandari Seyede Saeedeh Masallanejad

Heat stress is an effective factor on immune responses, body weight, egg production and egg quality of chickens. The major effect of heat stress is due to decreased food intake and alteration in acid-base balance. During the recent years, efforts to improve laying performance at high temperatures have been relatively successful. Supplementation of the diet or drinking water with special nutrien...

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