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The effects of cold stimulation and exercise on human health
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作者 Jie Tian Jiangli Li +1 位作者 Yunbo Zhang Fengjuan Yang 《Frigid Zone Medicine》 2023年第3期176-185,共10页
Cold stimulation and exercise are two independent stimulus variables,each yielding unique impacts on human health.However,in many cases,individuals often encounter both factors simultaneously,particularly in colder re... Cold stimulation and exercise are two independent stimulus variables,each yielding unique impacts on human health.However,in many cases,individuals often encounter both factors simultaneously,particularly in colder regions where outdoor physical activity is prevalent.Despite numerous studies exploring the effects of cold exposure and exercise independently,only a limited number of comprehensive reviews have evaluated their combined influence on health.This review aims to bridge this gap by meticulously examining the potential benefits and detriments of both cold stimulation and exercise on human health.Specifically,the review focuses on their impacts on cardiovascular,respiratory,and immune function,as well as the favorable effects of moderate exercise on the human body.While evidence suggests that cold exposure can enhance health outcomes in certain disease contexts,it also poses risks,particularly for vulnerable populations.Furthermore,while moderate exercise is generally beneficial,engaging in physical activity in cold weather conditions can increase the risk of hypothermia,frostbite,and other cold-related injuries.Consequently,there is an urgent need to develop safe and effective guidelines for exercising in cold weather,particularly for individuals living in colder regions.This review emphasizes the necessity for further research on the combined effects of cold stimulation and exercise,with the goal of informing public health policies and guidelines for physical activity in cold weather conditions. 展开更多
关键词 cold exposure EXERCISE HEALTH cardiovascular disease
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Computer Modelling as an Aid to Forest and Woodland Restoration
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作者 Jonathan D. Majer Adam Dunn Jean-Paul Orsini 《Open Journal of Forestry》 2014年第2期112-123,共12页
Reclamation of terrestrial ecosystems tends to be focussed on two main land uses, mining and degraded agricultural or forested lands. Modelling has great potential to assist in both situations. The aim of many restora... Reclamation of terrestrial ecosystems tends to be focussed on two main land uses, mining and degraded agricultural or forested lands. Modelling has great potential to assist in both situations. The aim of many restoration programs is to restore biodiversity and a self-sustaining, fully functional ecosystem, which is intimately linked with the return of the plants, the vertebrates and, particularly, the invertebrate fauna, whose presence plays a pivotal role in most ecosystem functions and processes. A thorough understanding of these plant-fauna associations is essential if restoration is to succeed. It could also equip us with the knowledge to decide how minimalistic our information needs can be when modelling progress with restoration, for instance: by quantifying certain biophysical parameters;these plus certain vegetation indices;or by both plus a range of faunal attributes. As well as streamlining the restoration monitoring process, this could lead to the enhancement of the conservation value of the restoration, and a clear understanding of the ecological links between flora and fauna would also help develop bioindicators as components of completion criteria schedules. Using Western Australian bauxite mining in the Jarrah (Eucalyptus marginata) forest as a case study, this paper reviews rehabilitation prescriptions and trends in development of plant assemblages, invertebrate colonization and litter decomposition, and applies a systems dynamic modelling approach model to test assumptions regarding the evolution of plant-fauna assemblages in time and assess whether it is feasible to predict temporal changes in the rehabilitation of this ecosystem. Secondly, in relation to efforts to purchase and rehabilitate land to reconnect remnant woodland vegetation close to the south coast of Western Australia, network analysis and multi-level simulations are applied in order to decide the best locations to acquire land and to restore it in order to optimise connectivity. 展开更多
关键词 Jarrah FOREST BAUXITE Mining FRAGMENTATION CONNECTIVITY
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