Search PubMed⌕ Search

SEARCH · Search PubMed

Results for “Cold Climate”

Search indexed PubMed citations on genomics, clinical trials, systematic reviews and public health. Explore titles, authors and supplied subject terms, then open the PubMed record.

Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.

At least 775 records · Page 43Linked to original sources
PubMed1998

How Drosophila species acquire cold tolerance--qualitative changes of phospholipids.

Phospholipids of many cold-tolerant organisms have been reported to contain more unsaturated fatty acids than cold-susceptible organisms, a phenomenon known to maintain membrane fluidity at low temperature. However, we have obtained results to the contrary through a comparison of the membrane phospholipids of six temperate and subtropical species belonging to the Drosophila melanogaster species group. With enhancement of cold tolerance, the percentages of monoenoic acids increased but the percentages of dienoic acids decreased, that is, the number of double bonds in the phospholipid decreased without a marked variation in the percentages of unsaturated fatty acids. Concomitantly, the percentage of fatty acids containing 16 carbon atoms increased, while that of fatty acids with 18 carbon atoms decreased. Since phosphatidylethanolamine is a dominant phospholipid in Drosophila, these changes probably contribute to keeping the homeoviscosity of the cellular membranes in a manner different to that in phosphatidylcholine-rich membranes, thereby increasing cold tolerance.

Acclimatization↗
PubMed1996

[Experience in sanitary and hygienic support of construction and upkeep of railroads in Northern and Siberian regions].

The article stresses that railway hygiene has accumulated vast experience in evaluation of working environment of railway construction workers in severe climate conditions, thorough hygienic characteristics cover the main construction occupations and the exploitation staffers. The research helped to elaborate variety of hygienic regulations on occupational hygiene and work schedules for railway construction workers, on hygienic basis of the workers' everyday life in severe climate conditions.

Cold Climate↗
PubMed1981

Cholinergic urticaria. A seasonal disease.

Nine young patients with cholinergic urticaria reported that the occurrence of the disease was restricted to winter. They were examined in a climatic room in winter and summer under three climatic conditions in each season (cold, comfort, and severe heat). All subjects experienced severe phenomena of cholinergic urticaria during the winter season when tested under comfortable climate and under severe heat load. No phenomena were elicited in the summer under any of the three climatic conditions or under cold climatic condition in the winter. This finding led to the assumption that symptoms appear in the sufferers only when exposed to heat or heat-producing exercise while unacclimatized to heat. Artificial heat acclimatization is winter resulted in disappearance of all clinical phenomena of cholinergic urticaria, lasting from a few days to two weeks.

Adult↗
PubMed2000

Thermal factors--indoor climate.

From 1950 and until today, building technology has developed continuously, especially concerning insulation and sealing (2). Therefore the Norwegian houses of today resist cold and wind very well. But there are still factors that can provide thermal discomfort. Some of these factors can for instance be open indoor solutions, placement and number of windows and sources of heat, upgrading and maintenance of old houses. Important thermal parameters are draught and air velocity, vertical air temperature differences, asymmetry of thermal radiation, floor temperature and relative humidity (4).

Cold Climate↗
PubMed2005

Climate change and human health: infrastructure impacts to small remote communities in the north.

In northern regions, climate change can include changes in precipitation magnitude and frequency, reductions in sea ice extent and thickness, and climate warming and cooling. These changes can increase the frequency and severity of storms, flooding, or erosion; other changes may include drought or degradation of permafrost. Climate change can result in damage to sanitation infrastructure resulting in the spread of disease or threatening a community's ability to maintain its economy, geographic location and cultural tradition, leading to mental stress. Through monitoring of some basic indicators communities can begin to develop a response to climate change. With this information, planners, engineers, health care professionals and governments can begin to develop approaches to address the challenges related to climate change.

Arctic Regions↗