نتایج جستجو برای: the climatic

تعداد نتایج: 16056537  

Journal: :Respiratory care 2014
Ignasi Garcia-Olivé Jose A Fiz Jose Sanz-Santos Carlos Martínez-Rivera Marisol Prats Juan Ruiz-Manzano

BACKGROUND Although some authors have suggested that there is some seasonal periodicity of hemoptysis, or relation to respiratory tract infections, the association of influenza or climatic parameters with hemoptysis has been poorly investigated. Our aim was to describe the relationship between influenza and climatic parameters with severe hemoptysis that required bronchial artery embolization (...

2002
Michael H. Graham Paul K. Dayton Jon M. Erlandson

Organisms face continual fluctuations in global climatic processes to which they must adapt or perish. Considering that many species are key habitat formers and energy producers, such responses to climate change can have significant population, community and even ecosystem consequences. Paleo-records of ecosystem responses to past environmental variability have proven invaluable for studying im...

Journal: :مدیریت خاک و تولید پایدار 0
سهیلا پویان دانش آموخته دانشگاه شیراز مریم میراکبری دانش آموخته دانشگاه شیراز سید فخرالدین افضلی استادیار دانشگاه شیراز

wind erosion climatic factor is a measure of climatic factors explaining the wind erosion erosivity. humidity and wind speed are climatic characteristics that must be considered as the erosion parameters. in this study, linear moment analysis (l-moments) and wind erosion climatic factor were used to evaluate the regional climate’s tendency effect on wind erosion in yazd province. wind erosion c...

2017
Huajing Teng Yaohua Zhang Chengmin Shi Fengbiao Mao Wanshi Cai Liang Lu Fangqing Zhao Zhongsheng Sun Jianxu Zhang

Murine rodents are excellent models for study of adaptive radiations and speciation. Brown Norway rats (Rattus norvegicus) are successful global colonizers and the contributions of their domesticated laboratory strains to biomedical research are well established. To identify nucleotide-based speciation timing of the rat and genomic information contributing to its colonization capabilities, we a...

2016
Ricardo A Scrosati Julius A Ellrich

On the Gulf of St. Lawrence coast of Nova Scotia (Canada), recruitment of the barnacle Semibalanus balanoides occurs in May and June. Every year in June between 2005 and 2016, we recorded recruit density for this barnacle at the same wave-exposed rocky intertidal location on this coast. During these 12 years, mean recruit density was lowest in 2015 (198 recruits dm-2) and highest in 2007 (969 r...

2014
Sung Ho Hwang Chung Sik Yoon Jae Bum Park

OBJECTIVES To evaluate the monthly variation in the airborne (1→3)-β-D-glucan level throughout one year and its relationship with climatic factors (temperature, relative humidity, wind speed, hours of daylight, cloud cover, and pollen counts). METHODS A total of 106 samples were collected using a two-stage cyclone sampler at five outdoor sampling locations (on top of 5 university buildings). ...

Journal: :space ontology international journal 0
mojtaba rezazadeh ardebili associate professor, school of architecture, college of fine arts, university of tehran maryam shafiei m.sc in architecture, faculty of fine arts, university of tehran, tehran, iran

while in the historic urban fabric of iran's cities, there are numerous traditional buildings that have stood up for more than one hundred years, today's buildings, in spite of advanced construction technologies, are not comparable with those traditional ones in terms of resiliency and durability. the sustainable vernacular strategies in design and construction of these traditional ho...

2000
Wei Luo

Recent computer models of landform evolution have focused on surface processes of river networks and hillslopes (e.g., Ahnert, 1976; Kirkby, 1986; Willgoose et al., 1991a, b; Koltermann and Gorelick, 1992; Howard, 1994; Howard et al., 1994; Smith et al., 1997). Most of these models are based on complicated differential equations that are difficult to solve. Chase (1992) developed a cellular aut...

Journal: :Journal of evolutionary biology 2005
F B Cruz L A Fitzgerald R E Espinoza J A Schulte

We tested for the occurrence of Bergmann's rule, the pattern of increasing body size with latitude, and Rapoport's rule, the positive relationship between geographical range size and latitude, in 34 lineages of Liolaemus lizards that occupy arid regions of the Andean foothills. We tested the climatic-variability hypothesis (CVH) by examining the relationship between thermal tolerance breadth an...

2015
Richard S. Ostfeld Jesse L. Brunner

The evidence that climate warming is changing the distribution of Ixodes ticks and the pathogens they transmit is reviewed and evaluated. The primary approaches are either phenomenological, which typically assume that climate alone limits current and future distributions, or mechanistic, asking which tick-demographic parameters are affected by specific abiotic conditions. Both approaches have p...

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