نتایج جستجو برای: climatic

تعداد نتایج: 31884  

Journal: :Philosophical transactions. Series A, Mathematical, physical, and engineering sciences 2007
D A Stainforth M R Allen E R Tredger L A Smith

Over the last 20 years, climate models have been developed to an impressive level of complexity. They are core tools in the study of the interactions of many climatic processes and justifiably provide an additional strand in the argument that anthropogenic climate change is a critical global problem. Over a similar period, there has been growing interest in the interpretation and probabilistic ...

2013
Joseph Kihoro Njoroge J Bosco Hunja Murage

Land suitability analysis is a prerequisite to achieving optimum utilization of the available land resources. Lack of knowledge on best combination of factors that suit production of rice has contributed to the low production. The aim of this study was to develop a suitability map for rice crop based on physical and climatic factors of production using a Multi-Criteria Evaluation (MCE) & GIS ap...

2017
Jean-Baptiste Raina Peta L Clode Soshan Cheong Jeremy Bougoure Matt R Kilburn Anthony Reeder Sylvain Forêt Michael Stat Victor Beltran Peter Thomas-Hall Dianne Tapiolas Cherie M Motti Bill Gong Mathieu Pernice Christopher E Marjo Justin R Seymour Bette L Willis David G Bourne

Phytoplankton-bacteria interactions drive the surface ocean sulfur cycle and local climatic processes through the production and exchange of a key compound: dimethylsulfoniopropionate (DMSP). Despite their large-scale implications, these interactions remain unquantified at the cellular-scale. Here we use secondary-ion mass spectrometry to provide the first visualization of DMSP at sub-cellular ...

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...

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). ...

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...

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