scholarly journals Cold Weather Conditions and Risk of Hypothermia Among People Experiencing Homelessness: Implications for Prevention Strategies

2019 ◽  
Vol 16 (18) ◽  
pp. 3259 ◽  
Author(s):  
Paige Zhang ◽  
Kathryn Wiens ◽  
Ri Wang ◽  
Linh Luong ◽  
Donna Ansara ◽  
...  
Keyword(s):  
Conditional Logistic Regression ◽  
Weather Conditions ◽  
Meteorological Conditions ◽  
Crossover Design ◽  
Cold Weather ◽  
Limited Data ◽  
Prevention Strategies ◽  
Temperature And Precipitation ◽  
Minimum Daily Temperature ◽  
The Relationship

Hypothermia is a preventable condition that disproportionately affects individuals who experience homelessness, yet limited data exist to inform the response to cold weather. To fill this gap, we examined the association between meteorological conditions and the risk of hypothermia among homeless individuals. Hypothermic events were identified from emergency department charts and coroner’s records between 2004 and 2015 in Toronto, Canada. A time-stratified case-crossover design with conditional logistic regression was used to assess the relationship between the meteorological conditions (minimum temperature and precipitation) and the risk of hypothermia. There were 97 hypothermic events identified: 79 injuries and 18 deaths. The odds of experiencing a hypothermic event increased 1.64-fold (95% CI: 1.30–2.07) with every 5 °C decrease in the minimum daily temperature and 1.10-fold (95% CI: 1.03–1.17) with every 1 mm increase in precipitation. The risk of hypothermia among individuals experiencing homelessness increased with declining temperature; however, most cases occurred during periods of low and moderate cold stress. 72% occurred when the minimum daily temperatures were warmer than −15 °C. These findings highlight the importance of providing a seasonal cold weather response to prevent hypothermia, complemented by an alert-based response on extremely cold days.

The Relationship Between Self-Regulatory Efficacy and Physical Activity in Adolescents With a Caveat: A Cross-Lag Design Examining Weather

2020 ◽  
Vol 32 (4) ◽  
pp. 210-216
Author(s):  
Kathleen S. Wilson ◽  
Kevin S. Spink
Keyword(s):  
Physical Activity ◽  
Self Efficacy ◽  
Structural Equation ◽  
Weather Conditions ◽  
Cold Weather ◽  
Equation Modeling ◽  
Future Research ◽  
School Year ◽  
Warm Weather ◽  
The Relationship

Purpose: The use of self-efficacy to predict physical activity has a long history. However, this relationship is complex, as self-efficacy is thought to influence and be influenced by physical activity. The directionality of the self-regulatory efficacy (SRE) and physical activity relationship was examined using a cross-lagged design. A secondary purpose was to examine these relationships across differing weather conditions. Methods: Canadian adolescents (N = 337; aged between 13 and 18 years) completed the physical activity and SRE measures 4 times during a school year. Structural equation modeling was used to perform a cross-lag analysis. Results: The relationships between physical activity and SRE appeared to be weather dependent. During a more challenging weather period (eg, cold weather), the relationship between physical activity and SRE was bidirectional. However, no relationship emerged when the 2 constructs were assessed during a more optimal weather period (eg, warm weather). Conclusions: Some support has been provided for the bidirectional nature of the relationship between physical activity and SRE. The relationship appeared to be qualified by climate considerations, suggesting that future research examine how weather may relate not just to physical activity but also to the correlates of physical activity.

El Niño and its impact on fire weather conditions in Alaska

2001 ◽  
Vol 10 (1) ◽  
pp. 1 ◽  
Author(s):  
Jason C. Hess ◽  
Carven A. Scott ◽  
Gary L. Hufford ◽  
Michael D. Fleming
Keyword(s):  
Weather Conditions ◽  
Weather Patterns ◽  
Area Burned ◽  
Temperature And Precipitation ◽  
Northern Latitudes ◽  
Dry Conditions ◽  
Alaskan Coast ◽  
The Tropics ◽  
Relationship Of ◽  
The Relationship

Examining the relationship of El Niño to weather patterns in Alaska shows wide climate variances that depend on the teleconnection between the tropics and the northern latitudes. However, the weather patterns exhibited in Alaska during and just after moderate to strong El Niño episodes are generally consistent: above normal temperature and precipitation along the Alaskan coast, and above normal temperature and below normal precipitation in the interior, especially through the winter. The warm, dry conditions in the Alaskan interior increase summer wildfire potential. Statistics on the area burned since 1940 show that 15 out of 17 of the biggest fire years occurred during a moderate to strong El Niño episode. These 15 years account for nearly 63% of the total area burned over the last 58 years. Evidence points to increased dry thunderstorms and associated lightning activity during an El Niño episode; the percentage of total area burned by lightning caused fires during five episodes increased from a normal of less than 40% to a high of about 96%.

The relationship between meteorological changes and daily feed intake or shell strength of eggs of Leghorn hens

1993 ◽  
Vol 73 (2) ◽  
pp. 465-469 ◽  
Author(s):  
B. K. Thompson ◽  
R. M. G. Hamilton
Keyword(s):  
Specific Gravity ◽  
Key Words ◽  
Feed Intake ◽  
Daily Variation ◽  
Weather Conditions ◽  
Meteorological Conditions ◽  
Weather Station ◽  
Regression Analyses ◽  
The Relationship

Feed intake and egg measurements were recorded daily over a 56-d period from Leghorn pullets and force-molted hens, with 36 of each age. Meteorological conditions during the experiment were obtained from a nearby weather station. Regression analyses indicated that the daily variation in flock parameters reported in other studies may be partly due to the flock's response to weather conditions outside the hen house. Key words: Poultry, meteorological conditions, correlations, flock parameters, feed intake, specific gravity, shell strength, temperature

scholarly journals Lindernia procumbens in Poland: the relationship between weather conditions and the occurrence of the species

2010 ◽  
Vol 17 (1) ◽  
pp. 39-46
Author(s):  
Agnieszka Nobis ◽  
Marcin Nobis ◽  
Katarzyna Piotrowicz ◽  
Zygmunt Kącki ◽  
Zygmunt Dajdok
Keyword(s):  
Climate Changes ◽  
Heat Waves ◽  
Weather Conditions ◽  
Meteorological Conditions ◽  
Geographical Range ◽  
Distribution Limit ◽  
Present Distribution ◽  
The Relationship

Lindernia procumbens in Poland: the relationship between weather conditions and the occurrence of the species New data regarding the occurrence of Lindernia procumbens (prostrate false pimpernel) are discussed and its current geographical range in Poland is given. A comparison of its past and present distribution in Poland indicates an advancement of the distribution limit northwards, which may be caused by climate changes, mostly, by an increased number of heat waves in the warm half-year. The relationship between the occurrence of the species and specific meteorological conditions, especially, unusually hot and dry summer periods, is analysed using long-term meteorological surveys.

scholarly journals Grass pollen seasons in Poland against a background of the meteorological conditions

2015 ◽  
Vol 68 (4) ◽  
pp. 357-365 ◽  
Author(s):  
Dorota Myszkowska ◽  
Katarzyna Piotrowicz ◽  
Monika Ziemianin ◽  
Kazimiera Chłopek ◽  
Katarzyna Dąbrowska-Zapart ◽  
...  
Keyword(s):  
Grass Pollen ◽  
Pollen Season ◽  
Weather Conditions ◽  
Meteorological Conditions ◽  
Daily Maximum ◽  
Temperature And Precipitation ◽  
Pollen Concentrations ◽  
Poaceae Pollen ◽  
Pollen Seasons

The paper refers to the estimation of Poaceae pollen seasons in Poland in selected areas. The aim of the study was to present the long-term variability of the start, end and duration of grass pollen seasons and the seasonal pollen index (SPI) in Poland against a background of the meteorological conditions over pollen seasons. The study was performed in eight Polish cities in 1992–2014 (the common seasons were 2003–2012). Pollen season start was relatively stable in the studied period, the seasons began about the 10th of May, a bit earlier in the south part of Poland. Pollen season ends were more changeable in comparison to the season start and fluctuated from the middle of July to the middle of September. SPI clearly depended on temperature and precipitation in April–August. Daily maximum pollen concentrations were achieved between the end of May and the first decade of July and no evident relationship between this day and weather conditions was found, apart from 2004.

Assessment of snowmaking conditions based on meteorological reconstruction in the Beijing–Zhangjiakou mountain area of North China in 1978–2017

2021 ◽  
Author(s):  
Jing Chen ◽  
Ji Wang ◽  
Runsheng Lin ◽  
Li Lu
Keyword(s):  
North China ◽  
Weather Conditions ◽  
Warming Trend ◽  
Meteorological Conditions ◽  
Cold Weather ◽  
Mountain Areas ◽  
Mountain Area ◽  
Winter Olympics ◽  
Weather Stations ◽  
Low Altitude

AbstractThe outdoor events of the 2022 Winter Olympics and Paralympics will be held in the mountain areas of Beijing–Zhangjiakou, North China, where there is a complete reliance on artificial snow production owing to the dry and cold weather conditions. To assess how favorable the meteorological conditions are to snowmaking at the mountain venues, we reconstructed the daily wet-bulb temperature by adopting the thin-plate smoothing spline function method, and then assessed the potential number of snowmaking days at eight weather stations (928–2098 m a.s.l.) from October to the next April (i.e., the ski season) during the period 1978–2017. Results showed that artificial snow production would have been possible on 121(±14) to 171(±12) days on average at the stations with the increases of altitude, and the number of days decreased at rates of 4.3–5.1 days per decade across four decades of the study period. The cause of the decrease was the warming trend, which affected the number of days in low-altitude sites simultaneously, but the reduction was delayed with increased elevation. At monthly scale, the number of snowmaking days was robust in wintertime but reduced in other months of the ski season, particularly in March in more recent sub-periods at high-altitude stations, which was determined by the increase in high values of daily mean wet-bulb temperature. Further improvements in assessing snowmaking conditions require detailed microclimatic studies to reduce the uncertainties caused by meteorological conditions, as well as combination with model-based methods to determine potential future changes.

Influence of meteorological conditions on post-tonsillectomy haemorrhage

2008 ◽  
Vol 122 (12) ◽  
pp. 1330-1334
Author(s):  
G Racic ◽  
D Kurtovic ◽  
Z Colovic ◽  
Z Dogas ◽  
G Kardum ◽  
...  
Keyword(s):  
Retrospective Study ◽  
Significant Influence ◽  
Atmospheric Pressure ◽  
Weather Condition ◽  
Weather Conditions ◽  
Meteorological Conditions ◽  
University Hospital ◽  
Daily Change ◽  
Study Population ◽  
The Relationship

AbstractAim:To evaluate the relationship between the incidence of primary post-tonsillectomy haemorrhage and the daily weather condition, over a five-year period.Study design and setting:This was a retrospective study carried out in the ENT department of the Split University Hospital between January 2000 and December 2004.Results:Out of 3377 patients undergoing tonsillectomy, primary post-operative haemorrhage occurred in 83 (2.5 per cent). The season, daily atmospheric pressure and daily change in atmospheric pressure did not have any significant influence on post-tonsillectomy haemorrhage incidence. However, there was a statistically significant increase in the incidence of primary post-operative haemorrhage when cyclonic conditions prevailed (p = 0.035).Conclusion:The incidence of primary post-tonsillectomy haemorrhage in our study population was 2.5 per cent. Avoiding tonsillectomy during cyclonic weather conditions may reduce the incidence of primary post-tonsillectomy haemorrhage.

scholarly journals Influence of Spring Wheat Growing Conditions on Alpha-Amylase Activity in Grain

2021 ◽  
Vol 937 (2) ◽  
pp. 022136
Author(s):  
L Mishchenko ◽  
M Terekhin ◽  
N Terekhin ◽  
A Muratov
Keyword(s):  
Enzyme Activity ◽  
Amylase Activity ◽  
Weather Conditions ◽  
Meteorological Conditions ◽  
Alpha Amylase ◽  
Falling Number ◽  
Average Value ◽  
Temperature And Precipitation ◽  
Phenotypic Manifestation ◽  
Growing Conditions

Abstract The meteorological conditions in which organogenesis stages take place and hydrothermal regime can determine the phenotypic manifestation of quantitative signs, such as, for example, the activity of alpha-amylase. The purpose of our work was to determine what factors (temperature, precipitation, heterothermal coefficient) affect the enzyme activity, at what time of the vegetation, and in what way this influence is evident. The analysis of weather conditions and falling number (FN) for the period from 2011 to 2020 was carried out. Analysis of the FN value over 10 years showed that it can vary from 90 s to 429 s, and at that, the nature of its change is the same, regardless of whether we are considering one variety or the average value for a group of varieties. The correlation coefficient between the FN of a group of varieties and individual FN is 0.94-0.98. Generally, during the vegetation season, the alpha-amylase activity was influenced to a greater extent by the amount of precipitation than by temperature. This dependence is negative - an increase in precipitation leads to a decrease in the FN, and, consequently, to an increase in the enzyme activity. However, it was found that in different phases of ontogeny the influence of temperature and precipitation can be diametrically opposite.

scholarly journals The Analysis of Meteorological Conditions for Icing on UHV Transmission Lines in Southeast Guizhou in 2018

2021 ◽  
Vol 261 ◽  
pp. 01066
Author(s):  
Hourong Zhang ◽  
Shiqi Zhang ◽  
Qi Wang ◽  
Hao Chai
Keyword(s):  
Wind Speed ◽  
Transmission Lines ◽  
Weather Conditions ◽  
Reanalysis Data ◽  
Meteorological Conditions ◽  
Air Pressure ◽  
Observation System ◽  
Northerly Wind ◽  
Meteorological Elements ◽  
The Relationship

Using ERA5 reanalysis data of ECMWF and the ultra-high voltage (UHV) transmission line icing observation system to analyze the meteorological conditions of conductor icing in Guizhou from January 24 to 29, 2018, Results show: The weather conditions for this icing event are that the temperature drops below 0°C, there is weak rainfall, and the humidity is generally between 95% and 100%; the direction is mainly northerly wind, with wind speed of 2~6m/s; the air pressure rises. The meteorological elements that are more relevant to icing are environmental temperature, air pressure, and precipitation. The relationship with wind speed and relative humidity is small.

Vulnerability of sweet cherry cultivars to continuous periods of spring frosts in Plovdiv, Bulgaria

2020 ◽  
Vol 12 (4) ◽  
pp. 348-352
Author(s):  
S. Malchev ◽  
S. Savchovska
Keyword(s):  
Sweet Cherry ◽  
Weather Conditions ◽  
Frost Damage ◽  
Cold Weather ◽  
Bud Burst ◽  
Intermediate Group ◽  
Air Temperatures ◽  
Wide Range ◽  
Group Form ◽  
Sweet Cherry Cultivars

Abstract. The periods with continuous freezing air temperatures reported during the spring of 2020 (13 incidents) affected a wide range of local and introduced sweet cherry cultivars in the region of Plovdiv. They vary from -0.6°C on March 02 to -4.9°C on March 16-17. The duration of influence of the lowest temperatures is 6 and 12 hours between March 16 and 17. The inspection of fruit buds and flowers was conducted twice (on March 26 and April 08) at different phenological stages after continuous waves of cold weather conditions alternated with high temperatures. During the phenological phase ‘bud burst’ (tight cluster or BBCH 55) some of the flowers in the buds did not develop further making the damage hardly detectable. The most damaged are hybrid El.28-21 (95.00%), ‘Van’ (91.89%) and ‘Bing’ (89.41%) and from the next group ‘Lapins’ (85.98%) and ‘Rosita’ (83.33%). A larger intermediate group form ‘Kossara’ (81.67%), ‘Rozalina’ (76.00%), ‘Sunburst’ (75.00%), ‘Bigarreau Burlat’ (69.11%) and ‘Kuklenska belitza’ (66.67%). Candidate-cultivar El.17-90 ‘Asparuh’ has the lowest frost damage values of 55.00% and El.17-37 ‘Tzvetina’ with damage of 50.60%.

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