نتایج جستجو برای: warmer
تعداد نتایج: 6494 فیلتر نتایج به سال:
Ecosystems are mosaics of different habitats, each of which provides its own opportunities and risks to the organisms that inhabit it. The profitability of any habitat depends on a variety of biotic and abiotic variables including the abundance of prey, vulnerability to predators, and physical features such as temperature that modify physiology and behavior. Because biological and physical cond...
Increasing greenhouse gases will change many aspects of the Earth’s climate, from its annual mean to the frequency of extremes such as heat waves and droughts[1]. Here we report that the current generation of climate models predicts a delay in the seasonal cycle of global rainfall and ocean temperature in response to increasing greenhouse gases, with important implications for the regional mons...
Extratropical cyclones and how they may change in a warmer climate have been investigated in detail with a high-resolution version of the ECHAM5 global climate model. A spectral resolution of T213 (63 km) is used for two 32-yr periods at the end of the twentieth and twenty-first centuries and integrated for the Intergovernmental Panel on Climate Change (IPCC) A1B scenario. Extremes of pressure,...
Climate change and biological invasions are key processes affecting global biodiversity, yet their effects have usually been considered separately. Here, we emphasise that global warming has enabled alien species to expand into regions in which they previously could not survive and reproduce. Based on a review of climate-mediated biological invasions of plants, invertebrates, fishes and birds, ...
To the Editor, We write to highlight the failure of an intravenous fluid warming device, HOTLINE HL-290 Blood and Fluid Warmer (Smiths Medical International, Kent, UK), which could have resulted in harm to the patient. Fluid warmer failures are becoming more prevalent, as evidenced by the United Kingdom Medicines and Healthcare Products Regulatory Agency (MHRA) issuing a recall of all Level 1 S...
[1] Understanding variability patterns of biogeochemical conditions in water is a key issue for water management strategies. Here a unique homogeneous data set of 1041 Swedish boreal lakes, sampled during three lake inventories along an 8 latitudinal temperature gradient, revealed a systematic increase in the variability of the water chemical composition between lakes with increasing temperatur...
INTRODUCTION A significant number of military personnel suffer from exertional heat illness, with some extreme cases resulting in death. These illnesses may occur without warning, they are often characterised by a rapid onset and can occur even in experienced personnel. Various field treatments for hyperthermia have been developed, and one of particular interest is the use cold-water immersion....
Prompt administration of intravenous (i.v.) dantrolene sodium (DS) is the primary determinant of successful treatment of malignant hyperthermia (MH) syndrome. Because DS has a long reconstitution time for use in treating an MH crisis, we evaluated an alternative technique for hastening the reconstitution. Simulating real-world conditions, with equipment common to the operating room environment,...
INTRODUCTION An assessment of practices and available medical devices during the treatment of a massive haemorrhage has been realised in the shock unit of our hospital. MATERIAL AND METHODS Parameters influencing transfusion flow rate have been identified. Medical devices and equipment to accelerate the flow rate were analyzed on the basis of manufacturers' data and users opinion in relation ...
OBJECTIVE Numerous studies support the use of warmed intravenous fluids in hypothermic patients. The most effective method to accomplish this goal in a cold prehospital, wilderness, or combat setting is unknown. We evaluated various methods of warming intravenous fluids for a bolus infusion in a cold remote environment. METHODS One liter and 500 mL bags of intravenous fluid at 5 degrees C wer...
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