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International Journal of Biometeorology

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https://www.readbyqxmd.com/read/28210860/a-heat-vulnerability-index-to-improve-urban-public-health-management-in-san-juan-puerto-rico
#1
Pablo Méndez-Lázaro, Frank E Muller-Karger, Daniel Otis, Matthew J McCarthy, Ernesto Rodríguez
Increased frequency and length of high heat episodes are leading to more cardiovascular issues and asthmatic responses among the population of San Juan, the capital of the island of Puerto Rico, USA. An urban heat island effect, which leads to foci of higher temperatures in some urban areas, can raise heat-related mortality. The objective of this research is to map the risk of high temperature in particular locations by creating heat maps of the city of San Juan. The heat vulnerability index (HVI) maps were developed using images collected by satellite-based remote sensing combined with census data...
February 17, 2017: International Journal of Biometeorology
https://www.readbyqxmd.com/read/28210859/effectiveness-of-peloid-therapy-in-carpal-tunnel-syndrome-a-randomized-controlled-single-blind-study
#2
Burcu Metin Ökmen, Meliha Kasapoğlu Aksoy, Aygül Güneş, Riza Eröksüz, Lale Altan
Carpal tunnel syndrome(CTS) is the most common neuromuscular cause of upper extremity disability. We aimed to investigate the effectiveness of peloid therapy in patients with CTS. This randomized, controlled, single-blind study enrolled 70 patients between the ages of 30 to 65 who had a diagnosis of either mild, mild-to-moderate, or moderate CTS. The patients were randomized into two groups using random number table. In the first group, (Group 1)(n = 35), patients were given splint (every night for 6 weeks) + peloid treatment(five consecutive days a week for 2 weeks) and in the second group, (Group 2)(n = 28), patients received splint treatment(every night for 6 weeks) alone...
February 16, 2017: International Journal of Biometeorology
https://www.readbyqxmd.com/read/28197732/effects-of-street-canyon-design-on-pedestrian-thermal-comfort-in-the-hot-humid-area-of-china
#3
Yufeng Zhang, Xiaohan Du, Yurong Shi
The design characteristics of street canyons were investigated in Guangzhou in the hot-humid area of China, and the effects of the design factors and their interactions on pedestrian thermal comfort were studied by numerical simulations. The ENVI-met V4.0 (BASIC) model was validated by field observations and used to simulate the micrometeorological conditions and the standard effective temperature (SET) at pedestrian level of the street canyons for a typical summer day of Guangzhou. The results show that the micrometeorological parameters of mean radiant temperature (MRT) and wind speed play key roles in pedestrian thermal comfort...
February 14, 2017: International Journal of Biometeorology
https://www.readbyqxmd.com/read/28190181/effects-of-the-urban-heat-island-on-the-phenology-of-odonata-in-london-uk
#4
Giovanna Villalobos-Jiménez, Christopher Hassall
Urbanisation is one of the major drivers of ecosystem change and includes increased temperatures in cities leading to an urban heat island (UHI). This study quantified the phenological response of odonates across London, UK, from 1990 to 2012, using a database of 1,031,277 historical sightings. The ordinal flight dates of each species were used to calculate the leading edge, middle and trailing edge of the flight period (P5, P50 and P95, respectively). The results suggest that the phenology of odonates is affected by the UHI only at a community level: no significant changes in the P5 or P50 of the flight period were found, although the P95 shows a mean advance of 4...
February 11, 2017: International Journal of Biometeorology
https://www.readbyqxmd.com/read/28190180/the-effects-of-synoptic-weather-on-influenza-infection-incidences-a-retrospective-study-utilizing-digital-disease-surveillance
#5
Naizhuo Zhao, Guofeng Cao, Jennifer K Vanos, Daniel J Vecellio
The environmental drivers and mechanisms of influenza dynamics remain unclear. The recent development of influenza surveillance--particularly the emergence of digital epidemiology--provides an opportunity to further understand this puzzle as an area within applied human biometeorology. This paper investigates the short-term weather effects on human influenza activity at a synoptic scale during cold seasons. Using 10 years (2005-2014) of municipal level influenza surveillance data (an adjustment of the Google Flu Trends estimation from the Centers for Disease Control's virologic surveillance data) and daily spatial synoptic classification weather types, we explore and compare the effects of weather exposure on the influenza infection incidences in 79 cities across the USA...
February 11, 2017: International Journal of Biometeorology
https://www.readbyqxmd.com/read/28188360/seasonal-modeling-of-hand-foot-and-mouth-disease-as-a-function-of-meteorological-variations-in-chongqing-china
#6
Pin Wang, Han Zhao, Fangxin You, Hailong Zhou, William B Goggins
Hand, foot, and mouth disease (HFMD) is an enterovirus-induced infectious disease, mainly affecting children under 5 years old. Outbreaks of HFMD in recent years indicate the disease interacts with both the weather and season. This study aimed to investigate the seasonal association between HFMD and weather variation in Chongqing, China. Generalized additive models and distributed lag non-linear models based on a maximum lag of 14 days, with negative binomial distribution assumed to account for overdispersion, were constructed to model the association between reporting HFMD cases from 2009 to 2014 and daily mean temperature, relative humidity, total rainfall and sun duration, adjusting for trend, season, and day of the week...
February 10, 2017: International Journal of Biometeorology
https://www.readbyqxmd.com/read/28180957/different-responses-of-influenza-epidemic-to-weather-factors-among-shanghai-hong-kong-and-british-columbia
#7
Xi-Ling Wang, Lin Yang, Dai-Hai He, Alice Py Chiu, Kwok-Hung Chan, King-Pan Chan, Maigeng Zhou, Chit-Ming Wong, Qing Guo, Wenbiao Hu
Weather factors have long been considered as key sources for regional heterogeneity of influenza seasonal patterns. As influenza peaks coincide with both high and low temperature in subtropical cities, weather factors may nonlinearly or interactively affect influenza activity. This study aims to assess the nonlinear and interactive effects of weather factors with influenza activity and compare the responses of influenza epidemic to weather factors in two subtropical regions of southern China (Shanghai and Hong Kong) and one temperate province of Canada (British Columbia)...
February 8, 2017: International Journal of Biometeorology
https://www.readbyqxmd.com/read/28180956/calibration-of-the-physiological-equivalent-temperature-index-for-three-different-climatic-regions
#8
E Krüger, F Rossi, P Drach
In human biometeorology, the integration of several microclimatic variables as a combined index facilitates the understanding of how users perceive thermal environments. Indices, such as the physiological equivalent temperature (PET) index, translate the combined effects of meteorological variables on humans in terms of thermal stress or comfort and serve as important aids to climate-responsive urban and regional planning as well as heat stress and thermal comfort analyses. However, there is a need for adjusting proposed comfort/stress ranges of a given index when using it in different climatic contexts...
February 8, 2017: International Journal of Biometeorology
https://www.readbyqxmd.com/read/28160059/finger-cold-induced-vasodilation-of-older-korean-female-divers-haenyeo-effects-of-chronic-cold-exposure-and-aging
#9
Joo-Young Lee, Joonhee Park, Eunsook Koh, Seongwon Cha
The aim of the present study was to evaluate the local cold tolerance of older Korean female divers, haenyeo (N = 22) in terms of cold acclimatization and ageing. As control groups, older non-diving females (N = 25) and young females from a rural area (N = 15) and an urban area (N = 51) participated in this study. To evaluate local cold tolerance, finger cold-induced vasodilation (CIVD) during finger immersion of 4 °C water was examined. As a result, older haenyeos showed greater minimum finger temperature and recovery finger temperature than older non-diving females (P < 0...
February 3, 2017: International Journal of Biometeorology
https://www.readbyqxmd.com/read/28154992/evaluation-of-heat-stress-on-tarentaise-and-holstein-cow-performance-in-the-mediterranean-climate
#10
Rahma Bellagi, Bruno Martin, Chantal Chassaing, Taha Najar, Dominique Pomiès
This study was undertaken to first quantify the effect of heat stress on milk yield and components of Tarentaise in comparison to Holstein cows. A dataset of 16,143 monthly individual records of production traits was collected for 435 Tarentaise and 543 Holstein cows from 21 farms in Tunisia (2009 to 2014). This dataset was merged with meteorological data from 5 public stations relative to the 21 farms. The temperature-humidity index (THI), calculated as a combination of ambient temperature and relative humidity, was used to characterize heat stress...
February 2, 2017: International Journal of Biometeorology
https://www.readbyqxmd.com/read/28144757/changes-in-spring-arrival-dates-and-temperature-sensitivity-of-migratory-birds-over-two-centuries
#11
Eva Kolářová, Michael Matiu, Annette Menzel, Jiří Nekovář, Petr Lumpe, Peter Adamík
Long-term phenological data have been crucial at documenting the effects of climate change in organisms. However, in most animal taxa, time series length seldom exceeds 35 years. Therefore, we have limited evidence on animal responses to climate prior to the recent warm period. To fill in this gap, we present time series of mean first arrival dates to Central Europe for 13 bird species spanning 183 years (1828-2010). We found a uniform trend of arrival dates advancing in the most recent decades (since the late 1970s)...
January 31, 2017: International Journal of Biometeorology
https://www.readbyqxmd.com/read/28108783/health-symptoms-in-relation-to-temperature-humidity-and-self-reported-perceptions-of-climate-in-new-york-city-residential-environments
#12
Ashlinn Quinn, Jeffrey Shaman
Little monitoring has been conducted of temperature and humidity inside homes despite the fact that these conditions may be relevant to health outcomes. Previous studies have observed associations between self-reported perceptions of the indoor environment and health. Here, we investigate associations between measured temperature and humidity, perceptions of indoor environmental conditions, and health symptoms in a sample of New York City apartments. We measured temperature and humidity in 40 New York City apartments during summer and winter seasons and collected survey data from the households' residents...
January 20, 2017: International Journal of Biometeorology
https://www.readbyqxmd.com/read/28102442/seasonal-differences-in-thermal-sensation-in-the-outdoor-urban-environment-of-mediterranean-climates-the-example-of-athens-greece
#13
Areti Tseliou, Ioannis X Tsiros, Marialena Nikolopoulou
Outdoor urban areas are very important for cities and microclimate is a critical parameter in the design process, contributing to thermal comfort which is important for urban developments. The research presented in this paper is part of extensive field surveys conducted in Athens aimed at investigating people's thermal sensation in a Mediterranean city. Based on 2313 questionnaires and microclimatic data the current work focuses on the relative frequencies of people's evaluation of the thermal along with the sun and wind sensations between two seasons trying to identify the seasonal differences in thermal sensation...
January 19, 2017: International Journal of Biometeorology
https://www.readbyqxmd.com/read/28091856/daily-rhythmicity-of-the-thermoregulatory-responses-of-locally-adapted-brazilian-sheep-in-a-semiarid-environment
#14
Wilma Emanuela da Silva, Jacinara Hody Gurgel Morais Leite, José Ernandes Rufino de Sousa, Wirton Peixoto Costa, Wallace Sostene Tavares da Silva, Magda Maria Guilhermino, Luis Alberto Bermejo Asensio, Débora Andréa Evangelista Façanha
The goal of this study was to evaluate the daily rhythmicity of the thermoregulatory responses of Morada Nova ewes that were raised in a semiarid environment. The experiment was conducted during the dry season. Data were collected from 5:00 a.m. to 4:00 a.m.. Samples were taken over the course of 8 days, with a 1-week interval between sampling periods. During each day that the data were collected, animals were measured once an hour for 24 h in an area directly exposed to solar radiation. The environment was characterized by measuring the following variables: air temperature (TA), relative humidity (RH), Black Globe Humidity Index (BGHI), radiant heat load (RHL), and wind speed (WS)...
January 16, 2017: International Journal of Biometeorology
https://www.readbyqxmd.com/read/28091855/combining-dispersion-modelling-with-synoptic-patterns-to-understand-the-wind-borne-transport-into-the-uk-of-the-bluetongue-disease-vector
#15
Laura Burgin, Marie Ekström, Suraje Dessai
Bluetongue, an economically important animal disease, can be spread over long distances by carriage of insect vectors (Culicoides biting midges) on the wind. The weather conditions which influence the midge's flight are controlled by synoptic scale atmospheric circulations. A method is proposed that links wind-borne dispersion of the insects to synoptic circulation through the use of a dispersion model in combination with principal component analysis (PCA) and cluster analysis. We illustrate how to identify the main synoptic situations present during times of midge incursions into the UK from the European continent...
January 14, 2017: International Journal of Biometeorology
https://www.readbyqxmd.com/read/28091854/effect-of-high-ambient-temperature-on-behavior-of-sheep-under-semi-arid-tropical-environment
#16
Kalyan De, Davendra Kumar, Vijay Kumar Saxena, Palanisamy Thirumurugan, Syed Mohammed Khursheed Naqvi
High environmental temperature is a major constraint in sheep production under semi-arid tropical environment. Behavior is the earliest indicator of animal's adaptation and responses to the environmental alteration. Therefore, the objective of this study was to assess the effects of high ambient temperature on the behavior of sheep under a semi-arid tropical environment. The experiment was conducted for 6 weeks on 16 Malpura cross (Garole × Malpura × Malpura (GMM)) rams. The rams were divided equally into two groups, designated as C and T...
January 13, 2017: International Journal of Biometeorology
https://www.readbyqxmd.com/read/28083707/effect-of-repeated-forearm-muscle-cooling-on-the-adaptation-of-skeletal-muscle-metabolism-in-humans
#17
Hitoshi Wakabayashi, Takayuki Nishimura, Titis Wijayanto, Shigeki Watanuki, Yutaka Tochihara
This study aimed to investigate the effect of repeated cooling of forearm muscle on adaptation in skeletal muscle metabolism. It is hypothesized that repeated decreases of muscle temperature would increase the oxygen consumption in hypothermic skeletal muscle. Sixteen healthy males participated in this study. Their right forearm muscles were locally cooled to 25 °C by cooling pads attached to the skin. This local cooling was repeated eight times on separate days for eight participants (experimental group), whereas eight controls received no cold exposure...
January 12, 2017: International Journal of Biometeorology
https://www.readbyqxmd.com/read/28078449/social-media-responses-to-heat-waves
#18
Jihoon Jung, Christopher K Uejio
Social network services (SNSs) may benefit public health by augmenting surveillance and distributing information to the public. In this study, we collected Twitter data focusing on six different heat-related themes (air conditioning, cooling center, dehydration, electrical outage, energy assistance, and heat) for 182 days from May 7 to November 3, 2014. First, exploratory linear regression associated outdoor heat exposure to the theme-specific tweet counts for five study cities (Los Angeles, New York, Chicago, Houston, and Atlanta)...
January 11, 2017: International Journal of Biometeorology
https://www.readbyqxmd.com/read/28035469/tree-ring-based-reconstruction-of-streamflow-for-the-zaqu-river-in-the-lancang-river-source-region-china-over-the-past-419%C3%A2-years
#19
Dingmu Xiao, Xuemei Shao, Ningsheng Qin, Xiaomei Huang
Tree-ring width standard chronologies were created from juniperus przewalskii Kom data collected in the Lancang River Headwaters region. Statistical analysis results showed high correlation (r = 0.69) between the composite tree-ring chronology and instrumental streamflow records at the Xiangda Hydrological Station during the annual September-August interval. Streamflow of the Zaqu River in the Lancang river source region was reconstructed for the past 419 years. The model was stable and revealed 14 extremely dry years and 6 extremely wet years...
December 29, 2016: International Journal of Biometeorology
https://www.readbyqxmd.com/read/28032196/air-mass-origin-signals-in-%C3%AE-18-o-of-tree-ring-cellulose-revealed-by-back-trajectory-modeling-at-the-monsoonal-tibetan-plateau
#20
Jakob Wernicke, Philipp Hochreuther, Jussi Grießinger, Haifeng Zhu, Lily Wang, Achim Bräuning
A profound consideration of stable oxygen isotope source water origins is a precondition for an unambiguous palaeoenvironmental interpretation of terrestrial δ (18)O archives. To stress the influence of air mass origins on widely used δ (18)O tree-ring chronologies, we conducted correlation analyses between six annually resolved δ (18)O tree-ring cellulose ([Formula: see text]) chronologies and mean annual air package origins obtained from backward trajectory modeling. This novel approach has been tested for a transect at the southeastern Tibetan plateau (TP), where air masses with different isotopic composition overlap...
December 28, 2016: International Journal of Biometeorology
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