نتایج جستجو برای: climatic stem

تعداد نتایج: 308452  

2017
A. M. Davies

admitted that this was true in the case of many of our foreign stations. Thus, the death-rate of the British soldier in India averaged (up to 1855) 69 per 1,000, the rate at home being 9 per 1,000 among men at the soldier's age. But when the causes of this high mortality were enquired into, it was found that by far the largest number of deaths were due to a few diseases of the zymotic class; so...

2010
FRANCISCO DAVID MOYA CHAVES

This work develops Artificial Neural Networks (ANN) models applied to predict the consumption forecasting considering climatic factors. It is intended to verify the influence of climatic factors on the electricity consumption forecasting through the ANN. The case study is applied in the Campinas city, Brazil. This work used Perceptron and Backpropagation ANN models. The specific goal is compari...

Journal: :Journal of theoretical biology 2000
J Powell B Kennedy P White B Bentz J Logan D Roberts

Three different mathematical approaches are combined to develop a spatial framework in which risk of mountain pine beetle (MPB) attack on individual hosts may be assessed. A density-based partial differential equation model describes the dispersal and focusing behavior of MPB. A local projection onto a system of ordinary differential equations predicts the consequences of the density equations ...

Journal: :Proceedings. Biological sciences 2014
Carissa D Brown Mark Vellend

We are limited in our ability to predict climate-change-induced range shifts by our inadequate understanding of how non-climatic factors contribute to determining range limits along putatively climatic gradients. Here, we present a unique combination of observations and experiments demonstrating that seed predation and soil properties strongly limit regeneration beyond the upper elevational ran...

Journal: :The review of economics and statistics 2015
Quamrul Ashraf Stelios Michalopoulos

This research examines the climatic origins of the diffusion of Neolithic agriculture across countries and archaeological sites. The theory suggests that a foraging society's history of climatic shocks shaped the timing of its adoption of farming. Specifically, as long as climatic disturbances did not lead to a collapse of the underlying resource base, the rate at which hunter-gatherers were cl...

Journal: :International Journal of Plant and Soil Science 2022

This work was carried out for 5 months from February, 2022 to June, in shadenet house, Department of Horticulture, SHUATS, Prayagraj. The experiment designed according a Factorial Completely Randomized Design (FCRD), using five different adenium hybrids and three types grafting techniques. replicated times. used the were Masai, Cream My Body, Tangerine, Super Moon, Golden Jublee techniques wedg...

Journal: :Ecology letters 2013
Phillip J van Mantgem Jonathan C B Nesmith MaryBeth Keifer Eric E Knapp Alan Flint Lorriane Flint

Pervasive warming can lead to chronic stress on forest trees, which may contribute to mortality resulting from fire-caused injuries. Longitudinal analyses of forest plots from across the western US show that high pre-fire climatic water deficit was related to increased post-fire tree mortality probabilities. This relationship between climate and fire was present after accounting for fire defenc...

2016
Jorge E Ramírez-Albores Ramiro O Bustamante Ernesto I Badano

Climatic niche models for invasive plants are usually constructed with occurrence records taken from literature and collections. Because these data neither discriminate among life-cycle stages of plants (adult or juvenile) nor the origin of individuals (naturally established or man-planted), the resulting models may mispredict the distribution ranges of these species. We propose that more accur...

ژورنال: یافته 2017
سپهوند, علیرضا, غلامرضایی, سارا, لشنی زند, مهران, پروانه, بهروز,

Background: The increasing number of patients suffering from cutaneous leishmaniasis in Poldokhtar County during the last 10 years and technological advances in data generation has increased the necessity to produce the predicting models of disease prevalence in the region. Therefore, climatic variables were used in this study to predict the cutaneous leishmaniasis. Materials and Methods: In...

2014
Su-Mia Akin Pim Martens Alessandro Pezzoli

Climate change is considered to be a significant influence for infectious disease risk in Western Europe. Climatic and non-climatic developments act together resulting in current and future infectious disease risk. This study uses a survey to explore Dutch expert perspectives on climate change induced infectious disease risk. The results show that the experts consider temperature change, precip...

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