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You searched for: Journal Journal of thermal biology Remove constraint Journal: Journal of thermal biology Publication Year 2018 Remove constraint Publication Year: 2018 Source 2018 v.72 Remove constraint Source: 2018 v.72
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1. An optimal two-bout strategy with phase change material cooling vests to improve comfort in hot environment

Author:
Itani, Mariam; Ghaddar, Nesreen; Ouahrani, Djamel; Ghali, Kamel; Khater, Beatrice
Source:
Journal of thermal biology 2018 v.72 pp. 10-25
ISSN:
0306-4565
Subject:
cooling; energy; heat; humans; melting point; metabolism; models; phase transition; sensation
Abstract:
... Cooling vests incorporating phase change material (PCM) packets are used to improve comfort of workers in hot environments. This work aims to investigate by modeling and experimentation the effect of dividing the working duration into two bouts, where different PCM melting temperatures are used in each bout. An integrated bio-heat and fabric-PCM model predictions of physiological and subjective vo ...
DOI:
10.1016/j.jtherbio.2017.12.005

2. A simulated heat wave shortens the telomere length and lifespan of a desert lizard

Author:
Zhang, Qiong; Han, Xingzhi; Hao, Xin; Ma, Liang; Li, Shuran; Wang, Yang; Du, Weiguo
Source:
Journal of thermal biology 2018 v.72 pp. 94-100
ISSN:
0306-4565
Subject:
Phrynocephalus przewalskii; antioxidant activity; biodiversity; global warming; heat; lizards; longevity; oxidative stress; telomeres; temperature
Abstract:
... Understanding how organisms respond to warming contributes important information to the conservation of biodiversity that is threatened by climate warming. Here, we conducted experiments on a desert agama (Phrynocephalus przewalskii) to test the hypothesis that climate warming (an increase in both mean temperature and heat waves) would induce oxidative stress, shortening telomere length, and there ...
DOI:
10.1016/j.jtherbio.2018.01.004

3. Bursty spike trains of antennal thermo- and bimodal hygro-thermoreceptor neurons encode noxious heat in elaterid beetles

Author:
Nurme, Karin; Merivee, Enno; Must, Anne; Di Giulio, Andrea; Muzzi, Maurizio; Williams, Ingrid; Mänd, Marika
Source:
Journal of thermal biology 2018 v.72 pp. 101-117
ISSN:
0306-4565
Subject:
Carabidae; death; early warning systems; electrophysiology; heat; heat tolerance; humidity; innervation; insects; locomotion; paralysis; scanning electron microscopy; sensilla; sensory neurons; temperature; thermoregulation
Abstract:
... The main purpose of this study was to explain the internal fine structure of potential antennal thermo- and hygroreceptive sensilla, their innervation specifics, and responses of the sensory neurons to thermal and humidity stimuli in an elaterid beetle using focused ion beam scanning electron microscopy and electrophysiology, respectively. Several essential, high temperature induced turning points ...
DOI:
10.1016/j.jtherbio.2018.01.008

4. Circadian rhythms of body temperature and locomotor activity in the antelope ground squirrel, Ammospermophilus leucurus

Author:
Refinetti, Roberto; Kenagy, G.J.
Source:
Journal of thermal biology 2018 v.72 pp. 67-72
ISSN:
0306-4565
Subject:
Ammospermophilus leucurus; body temperature; circadian rhythm; diurnal activity; heat production; locomotion; night temperature; nocturnal activity; photoperiod; squirrels
Abstract:
... We studied circadian rhythms of body temperature and locomotor activity in antelope ground squirrels (Ammospermophilus leucurus) under laboratory conditions of a 12L:12D light-dark cycle and in constant darkness. Antelope ground squirrels are diurnally active and, exceptionally among ground squirrels and other closely related members of the squirrel family in general, they do not hibernate. Daily ...
DOI:
10.1016/j.jtherbio.2018.01.001

5. Daily rhythm of skin temperature of women evaluated by infrared thermal imaging

Author:
Costa, Carlos Magno Amaral; Moreira, Danilo Gomes; Sillero-Quintana, Manuel; Brito, Ciro José; de Azambuja Pussieldi, Guilherme; de Andrade Fernandes, Alex; Cano, Sergio Piñonosa; Bouzas Marins, João Carlos
Source:
Journal of thermal biology 2018 v.72 pp. 1-9
ISSN:
0306-4565
Subject:
analysis of variance; arms (limbs); body weight; chest; circadian rhythm; females; image analysis; legs; men; skin temperature; thermography; women
Abstract:
... It is well known that skin temperature varies due to circadian rhythm. Although there is information available for men, little is known about women's circadian rhythm in the analysis of skin temperature (Tsk) using infrared thermography. The objective of this study is to identify Tsk variations on different body regions in women through infrared thermography during the day. The sample consisted of ...
DOI:
10.1016/j.jtherbio.2017.12.002

6. Effect of altered ambient temperature through shelter modifications on physiological indicators of Malpura lambs reared in semi-arid region during winter

Author:
De, Kalyan; Kumar, Davendra; Singh, Anoop Kumar; Sahoo, Artabandhu; Naqvi, Syed Mohammed Khursheed
Source:
Journal of thermal biology 2018 v.72 pp. 161-167
ISSN:
0306-4565
Subject:
ambient temperature; animal welfare; asbestos; bamboos; blood; body weight; cell respiration; cold treatment; cortisol; data analysis; heart rate; lambs; linear models; metabolites; microclimate; physiological response; rearing; semiarid zones; skin temperature; tropics; weight gain; winter
Abstract:
... Microclimatic factors are of crucial aspect for the welfare of animals. Therefore, a study was conducted to assess the effect of altered ambient temperature through shelter modifications on physiological indicators of Malpura lambs reared in the semi-arid region during winter. Twenty-one Malpura lambs of 3–5 week age and average body weight 9.97 ± 0.51 kg were used in the present study. The lambs ...
DOI:
10.1016/j.jtherbio.2018.02.003

7. Effects of temperature on activities of antioxidant enzymes and Na+/K+-ATPase, and hormone levels in Schizothorax prenanti

Author:
Yang, Song; Yan, Tao; Zhao, Liulan; Wu, Hao; Du, Zongjun; Yan, Taiming; Xiao, Qing
Source:
Journal of thermal biology 2018 v.72 pp. 155-160
ISSN:
0306-4565
Subject:
Schizothorax prenanti; acetylcholine; antioxidant activity; catalase; cortisol; enzyme activity; gills; heat stress; heat tolerance; liver; malondialdehyde; muscles; oxidative stress; sodium-potassium-exchanging ATPase; superoxide dismutase; temperature
Abstract:
... This study evaluated the effects of temperature on the activities of antioxidant enzymes and hormone levels in Schizothorax prenanti. Schizothorax prenanti were acutely suffered from increasing temperature at a rate of 1 °C h−1. The temperature started from 11 °C and the critical thermal maximum (CTMax) was measured to evaluated thermal tolerance of Schizothorax prenanti. Antioxidant parameters in ...
DOI:
10.1016/j.jtherbio.2018.02.005

8. Estimation of metabolic energy expenditure from core temperature using a human thermoregulatory model

Author:
Welles, Alexander P.; Buller, Mark J.; Looney, David P.; Rumpler, William V.; Gribok, Andrei V.; Hoyt, Reed W.
Source:
Journal of thermal biology 2018 v.72 pp. 44-52
ISSN:
0306-4565
Subject:
air; body temperature; calorimetry; energy expenditure; exercise; humans; metabolism; models; nylon; thermometers; wind speed
Abstract:
... Human metabolic energy expenditure is critical to many scientific disciplines but can only be measured using expensive and/or restrictive equipment. The aim of this work is to determine whether the SCENARIO thermoregulatory model can be adapted to estimate metabolic rate (M) from core body temperature (TC). To validate this method of M estimation, data were collected from fifteen test volunteers ( ...
DOI:
10.1016/j.jtherbio.2017.12.007

9. Estimation of the optimum number and location of nanoparticle injections and the specific loss power for ideal hyperthermia

Author:
Boroon, Mostafa Pasandi; Ayani, Mohammad-Bagher; Bazaz, Sajad Razavi
Source:
Journal of thermal biology 2018 v.72 pp. 127-136
ISSN:
0306-4565
Subject:
brain; energy; equations; fever; heat; magnetic fields; magnetic materials; nanoparticles; neoplasms; remission; thermotherapy; tissues
Abstract:
... Hyperthermia is one of the most appealing methods of cancer treatment in which the temperature of tumor is elevated to reach a desired temperature. One of the methods of increasing tissue temperature is injection of nanoparticle fluids to tumor and applying alternative magnetic field, which is called magnetic nanoparticle hyperthermia method. The total number of injection points, as well as the th ...
DOI:
10.1016/j.jtherbio.2018.01.010

10. Heterologous expression of AgsA enhances Escherichia coli tolerance to the combined effect of elevated temperature and Zinc toxicity

Author:
Ezemaduka, Anastasia N.; Lv, Yanchun; Wang, Yunbiao; Xu, Jingbo; Li, Xiujun
Source:
Journal of thermal biology 2018 v.72 pp. 137-142
ISSN:
0306-4565
Subject:
Escherichia coli; Salmonella Typhimurium; biomarkers; heat shock proteins; heavy metals; heterologous gene expression; median effective concentration; temperature; toxicity; zinc
Abstract:
... Small heat shock proteins (sHSPs) are ubiquitous stress proteins that are able to protect the cells against cellular insults from temperature, heavy metal etc. However, the molecular chaperone roles of sHSPs in enhancing growth and adaptation under combined temperature and metal stresses in Escherichia coli cells have been poorly understood. Here, we analyze the function of recombinant AgsA, a sma ...
DOI:
10.1016/j.jtherbio.2018.01.007

11. High competition between ant species at intermediate temperatures

Author:
Kwon, Tae-Sung
Source:
Journal of thermal biology 2018 v.72 pp. 59-66
ISSN:
0306-4565
Subject:
Formicidae; baits; competitive exclusion; global warming; pitfall traps; social dominance; species diversity; temperate zones; temperature
Abstract:
... Living organisms have been moving rapidly toward their favorable thermal regions as climate warms. Their competitive interactions will change significantly as a result of changes in distribution, abundance, and species composition. This study examines the relationship of competition intensity (frequency of competitive interactions) with temperature and the influence of competition on the occurrenc ...
DOI:
10.1016/j.jtherbio.2017.11.015

12. Influence of extreme heat or cold stresses on body pigmentation of Drosophila melanogaster

Author:
Pétavy, Georges; Moreteau, Brigitte; David, Jean R.; Gibert, Patricia
Source:
Journal of thermal biology 2018 v.72 pp. 118-126
ISSN:
0306-4565
Subject:
Drosophila melanogaster; body size; cold stress; genetic correlation; genetic variation; heat; phenotype; pigmentation; temperature; variance
Abstract:
... Thoracic and abdominal pigmentation were measured in Drosophila melanogaster under a cold circadian stress (8–25 °C) and a heat one (18–33 °C) and compared to the phenotypes observed under similar but constant temperatures of 17 or 25 °C respectively. An isofemale line design permitted to submit each line (full sibs) to the four thermal regimes. Under cold stress, the pigmentation was similar to t ...
DOI:
10.1016/j.jtherbio.2018.01.005

13. Insights on the thermal impacts of wing colorization of migrating birds on their skin friction drag and the choice of their flight route

Author:
Hassanalian, M.; Ayed, S. Ben; Ali, M.; Houde, P.; Hocut, C.; Abdelkefi, A.
Source:
Journal of thermal biology 2018 v.72 pp. 81-93
ISSN:
0306-4565
Subject:
color; energy balance; flight; friction; geometry; migratory birds; skin temperature; solar radiation; thermal analysis; wings
Abstract:
... The thermal effects of wing color in flight is investigated in four species of birds with respect to their flight routes, migration time, and geometric and behavioral characteristics. Considering the marine and atmospheric characteristics of these flight routes, a thermal analysis of the birds’ wings is performed during their migration. The surrounding fluxes including the ocean flux and the solar ...
DOI:
10.1016/j.jtherbio.2018.01.011

14. Investigating factors affecting the body temperature of dogs competing in cross country (canicross) races in the UK

Author:
Carter, Anne J.; Hall, Emily J.
Source:
Journal of thermal biology 2018 v.72 pp. 33-38
ISSN:
0306-4565
Subject:
color; cooling; dogs; environmental factors; exercise; fever; harness; heat; heat stroke; humans; males; risk; sports; summer; winter; United Kingdom
Abstract:
... Increasing numbers of people are running with their dogs, particularly in harness through the sport canicross. Whilst canicross races are typically held in the winter months, some human centred events are encouraging running with dogs in summer months, potentially putting dogs at risk of heat related injuries, including heatstroke. The aim of this project was to investigate the effects of ambient ...
DOI:
10.1016/j.jtherbio.2017.12.006

15. Latitudinal patterns in temperature-dependent growth rates of a forest pathogen

Author:
Pimentel, Carla S.; Ayres, Matthew P.
Source:
Journal of thermal biology 2018 v.72 pp. 39-43
ISSN:
0306-4565
Subject:
Bursaphelenchus xylophilus; climate; diet; epidemiology; forests; geographical distribution; latitude; models; plant pathogens; summer; temperature; vascular wilt; East Asia; Eurasia; North America
Abstract:
... Direct effects of temperature on plant pathogens can be crucial to determine the onset and epidemiology of disease. The pinewood nematode Bursaphelenchus xylophilus, the causal agent of the pine wilt disease (PWD), has a wide geographical distribution in Eurasia and East Asia, and local temperatures are considered determinant for the onset of the PWD. However, direct effects of temperature on this ...
DOI:
10.1016/j.jtherbio.2017.11.018

16. Short-term heat stress results in increased apoptotic signaling and autophagy in oxidative skeletal muscle in Sus scrofa

Author:
Ganesan, Shanthi; Pearce, Sarah C.; Gabler, Nicholas K.; Baumgard, Lance H.; Rhoads, Robert P.; Selsby, Joshua T.
Source:
Journal of thermal biology 2018 v.72 pp. 73-80
ISSN:
0306-4565
Subject:
Sus scrofa; apoptosis; caspase-3; environmental exposure; fever; heat; heat stress; humans; mitophagy; mortality; skeletal muscle; swine
Abstract:
... Prolonged environment-induced hyperthermia causes morbidities and mortality in humans and animals and appears to cause organ-specific injury and dysfunction. We have previously determined autophagic dysfunction and apoptotic signaling in oxidative skeletal muscle following prolonged hyperthermia. The aim of this investigation was to extend our knowledge regarding the early chronology of heat stres ...
DOI:
10.1016/j.jtherbio.2018.01.003

17. The aphid Acyrthosiphon pisum exhibits a greater survival after a heat shock when parasitized by the wasp Aphidius ervi

Author:
Trotta, Vincenzo; Forlano, Pierluigi; Falabella, Patrizia; Battaglia, Donatella; Fanti, Paolo
Source:
Journal of thermal biology 2018 v.72 pp. 53-58
ISSN:
0306-4565
Subject:
Acyrthosiphon pisum; Aphidius ervi; biological control agents; heat stress; legumes; microclimate; parasitism; parasitoids; survival rate; temperature; wasps
Abstract:
... The pea aphid Acyrthosiphon pisum is a common pest of many species of legumes and its parasitoid Aphidius ervi is regarded as a successful biocontrol agent. In this study, we report a greater survival rate of parasitized aphids compared with unparasitized ones, after exposure to a very high temperature (39°C for 30min). After the heat shock, the survival of unparasitized aphids decreases according ...
DOI:
10.1016/j.jtherbio.2017.12.004

18. The effect of ice slurry ingestion on body temperature and cycling performance in competitive athletes

Author:
Mejuto, Gaizka; Chalmers, Samuel; Gilbert, Stephanie; Bentley, David
Source:
Journal of thermal biology 2018 v.72 pp. 143-147
ISSN:
0306-4565
Subject:
athletes; beverages; bicycling; blood; body temperature; cooling; cross-over studies; exercise; heart rate; heat; ice; ingestion; lactic acid; precooling; relative humidity; sensation; slurries
Abstract:
... The effects of pre cooling on endurance performance are widely known. In contrast, the approach of cooling during endurance exercise in combination with pre-exercise cooling has been poorly understood. The purpose of the present study was to determine whether the effects of precooling and cooling during exercise enhance exercise performance compared to the ingestion of a thermo-neutral beverage (2 ...
DOI:
10.1016/j.jtherbio.2018.01.012

19. The effect of temperature and light on embryogenesis and post-embryogenesis of the spider Eratigena atrica (Araneae, Agelenidae)

Author:
Napiórkowska, Teresa; Kobak, Jarosław; Napiórkowski, Paweł; Templin, Julita
Source:
Journal of thermal biology 2018 v.72 pp. 26-32
ISSN:
0306-4565
Subject:
Agelenidae; embryogenesis; larvae; mortality; nymphs; photoperiod; temperature
Abstract:
... Embryogenesis and post-embryogenesis of spiders depend on several environmental factors including light and temperature. This study was aimed at evaluating the impact of different thermal and lighting conditions on embryonic and early post-embryonic development of Eratigena atrica. Embryos, larvae, nymphs I and II were incubated at constant temperatures of 12, 22, 25 and 32°C under three different ...
DOI:
10.1016/j.jtherbio.2017.12.003

20. The influence of lifestyle and swimming behavior on metabolic rate and thermal tolerance of twelve Amazon forest stream fish species

Author:
Campos, D.F.; Val, A.L.; Almeida-Val, V.M.F.
Source:
Journal of thermal biology 2018 v.72 pp. 148-154
ISSN:
0306-4565
Subject:
Characidae; Cichlidae; Crenuchidae; Rivulidae; energy; environmental factors; fish; forests; heat tolerance; lifestyle; metabolism; oxygen; pH; streams; swimming; temperature
Abstract:
... The metabolism of fishes is profoundly affected by environmental factors such as temperature, oxygen concentration, and pH levels. Also, biotic elements, for instance, activity levels of species, have been suggested to affect the energy demand, driving their capacity to support environmental challenges. The present work aims to investigate the effects of the lifestyle and swimming activities level ...
DOI:
10.1016/j.jtherbio.2018.02.002