Dietary lipid sources affect cold tolerance of Nile tilapia (Oreochromis niloticus)
This study was carried out to evaluate the effects of dietary lipid sources on growth performance, fatty acids composition and cold tolerance of Nile tilapia (Oreochromis niloticus) fingerlings (7.00±0.50 g/fish). The fish were fed four isonitrogenous (28% crude protein), isocaloric (500 kcal/100 g) diets containing four lipid sources; fish oil (FO), corn oil (CO), coconut oil (COCO) or fish oil/ corn oil mixture (1:1 ratio) (oil mix). The diets were offered to the fish at a daily rate of 3% of their body weights (BW), twice a day for two months. After the feeding trial, the fish were exposed to decre...
Source: Journal of Thermal Biology - November 17, 2018 Category: Biology Source Type: research

Unraveling the influences of Climate Change in Lepidosauria (Reptilia)
Publication date: Available online 15 November 2018Source: Journal of Thermal BiologyAuthor(s): Luisa Maria Diele-Viegas, Carlos Frederico Duarte RochaAbstractIn recent decades, changes in climate have caused impacts on natural and human systems on all continents and across the oceans and many species have shifted their geographic ranges, seasonal activities, migration patterns, abundances and interactions in response to these changes. Projections of future climate change are uncertain, but the Earth's warming is likely to exceed 4.8 °C by the end of 21th century. The vulnerability of a population, species, group ...
Source: Journal of Thermal Biology - November 16, 2018 Category: Biology Source Type: research

Thermal biology of a strictly subterranean mammalian family, the African mole-rats (Bathyergidae, Rodentia)
Publication date: Available online 15 November 2018Source: Journal of Thermal BiologyAuthor(s): Radim ŠumberaAbstractAfrican mole-rats are subterranean rodents, which rarely if ever leave the safety of their burrow systems. The environment of the burrows is humid, with relatively stable temperatures, and may have a hypoxic and hypercapnic atmosphere. One of crucial problems related to the subterranean way of life in mammals is avoidance of overheating, because traditional mammalian cooling mechanisms are not effective under high humidity. In African mole-rats, a variety of adaptations have evolved in response to thi...
Source: Journal of Thermal Biology - November 16, 2018 Category: Biology Source Type: research

Effects of alternating exposure to cold and heat for 14 days on cold tolerance in winter
This study was conducted to investigate the effects of alternating exposure to cold and heat on cold tolerance in eight young males. A daily acclimation program to cold and heat, which consisted of 2-h sitting at 10 °C air in the morning and 2-h running and rest at 30 °C air in the afternoon, was conducted for 14 consecutive days. Eight male subjects participated in a cold tolerance test (10 °C [±0.3], 40%RH [±3]) before (PRE) and after (POST) completing the alternating exposure program. During the cold tolerance test, subjects remained sitting upright on a chair for 60 min. Re...
Source: Journal of Thermal Biology - November 16, 2018 Category: Biology Source Type: research

Preterm Birth and Ambient Temperature: Strong Association during Night-Time and Warm Seasons
ConclusionOur study indicates that heat exposure was related to an elevated risk of PTB, with higher risk of PTB for nocturnal exposure and warm seasons. Our findings have implications for the adverse effect of elevated temperature in the future as global warming continues. (Source: Journal of Thermal Biology)
Source: Journal of Thermal Biology - November 16, 2018 Category: Biology Source Type: research

Thermoregulation in rapid growing broiler chickens is compromised by constraints on radiative and convective cooling performance
Publication date: Available online 14 November 2018Source: Journal of Thermal BiologyAuthor(s): Peter G. Tickle, Jonathan R. CoddAbstractBroiler chickens are selected to undergo a rapid six-week hatch-to-slaughter growth phase to attain large body and muscle mass. Broilers have relatively high resting and locomotor metabolic costs suggesting that adaptive thermoregulatory mechanisms are required to dissipate excess heat. Using thermal imaging in the growing broiler we characterised the trajectory of radiative and convective cooling in still air across broiler development. Scaling of head, tarsus and toe surface area did no...
Source: Journal of Thermal Biology - November 16, 2018 Category: Biology Source Type: research

Thermal effects of mobile phones on human auricle region
Publication date: Available online 14 November 2018Source: Journal of Thermal BiologyAuthor(s): Joanna Bauer, Charlie O’Mahony, Drahomir Chovan, John Mulcahy, Christophe Silien, Syed A.M. TofailAbstractMobile phones have become an indispensable utility to modern society, with international use increasing dramatically each year. The GSM signal operates at 900 MHz, 1800MHz and 2250 MHz, may potentially cause harm to human tissue. Yet there is no in silico model to aid design these devices to protect from causing potential thermal effect. Here we present a model of sources of heating in a mobile phone device w...
Source: Journal of Thermal Biology - November 16, 2018 Category: Biology Source Type: research

Testing the climatic variability hypothesis in edaphic and subterranean Collembola (Hexapoda)
Publication date: Available online 13 November 2018Source: Journal of Thermal BiologyAuthor(s): Natália Raschmanová, Vladimír Šustr, Ľubomír Kováč, Andrea Parimuchová, Miloslav DevetterAbstractThe climatic variability hypothesis was applied to the thermal tolerance of edaphic and cave Collembola occupying contrasting environments. Collembola belonged to four categories – trogloxene, subtroglophile, eutroglophile and troglobiont – with a different degree of affinity to subterranean habitats. Altogether, specimens of 17 species were exposed to a one-hour laborato...
Source: Journal of Thermal Biology - November 14, 2018 Category: Biology Source Type: research

Impact of heat and cold waves on female cattle mortality beyond the effect of extreme temperatures
Publication date: Available online 8 November 2018Source: Journal of Thermal BiologyAuthor(s): Eric Morignat, Emilie Gay, Jean-Luc Vinard, Carole Sala, Didier Calavas, Viviane HénauxAbstractAlthough heat and cold temperatures are known to have an impact on cattle mortality, no study has evidenced and quantified the influence of the prolonged exposure to extreme temperatures beyond the single effect of daily temperatures. We defined a heat (or cold) wave by a continuous variable indicating the number of successive days with temperatures above (or below) a given threshold. For heat wave, the threshold was set to the 9...
Source: Journal of Thermal Biology - November 10, 2018 Category: Biology Source Type: research

Do temperature, relative humidity and interspecific competition alter the population size and the damage potential of stored-product insect pests? A hierarchical multilevel modeling approach
In this study we utilize a 4-level hierarchical linear multilevel model in order to assess the effect of temperature, relative humidity (RH) and interspecific competition on the population size and damage potential of the larger grain borer, Prostephanus truncatus (Horn) (Coleoptera: Bostrychidae) and the lesser grain borer, Rhyzopertha dominica (F.) (Coleoptera: Bostrychidae). As RH was increased, we observed higher percentage of live insects, while increased levels of temperature significantly decreased the percentage of live insects. The combination of R. dominica and P. truncatus lead to reduction of the percentages of...
Source: Journal of Thermal Biology - November 3, 2018 Category: Biology Source Type: research

Computational Study of Photo-thermal Ablation of Large Blood Vessel Embedded Tumor using Localized Injection of Gold Nanoshells
This study may improve the real clinical invasive schemes applied to ablate malignant tumor during hyperthermia treatment. (Source: Journal of Thermal Biology)
Source: Journal of Thermal Biology - November 2, 2018 Category: Biology Source Type: research

A study of cryosurgery of lung cancer using Modified Legendre wavelet Galerkin method
Publication date: Available online 30 October 2018Source: Journal of Thermal BiologyAuthor(s): Mukesh Kumar, Subrahamanyam Upadhyay, K.N. RaiAbstractIn this paper, we have developed a new mathematical model describing bio-heat transfer during cryosurgery of lung cancer. The lung tissue cooled by a flat probe whose temperature decreases linearly with time. The freezing process occurs in three stages and the whole region is divided into solid, mushy and liquid region. The heat released in the mushy region is considered as discontinuous heat generation. The model is an initial-boundary value problem of the hyperbolic partial ...
Source: Journal of Thermal Biology - October 31, 2018 Category: Biology Source Type: research

Social thermoregulation and socio-physiological effect in the subterranean Mashona mole-rat (Fukomys darlingi)
Publication date: Available online 30 October 2018Source: Journal of Thermal BiologyAuthor(s): Pavlína Wiedenová, Radim Šumbera, Jan OkrouhlíkAbstractA strict underground style of life is one of the greatest challenges for mammals partly due to the high energetic cost of obtaining food by digging through a mechanically resistant substrate. Any energy saving adaptation, for example the effect of social thermoregulation, is thus very important for subterranean mammals. It has also been suggested that social mammals may suffer from “isolation stress” if measured alone, because the prese...
Source: Journal of Thermal Biology - October 31, 2018 Category: Biology Source Type: research

Thermal niche conservatism in an environmental gradient in the spider Sicarius thomisoides (Araneae: Sicariidae): implications for microhabitat selection
Publication date: Available online 29 October 2018Source: Journal of Thermal BiologyAuthor(s): A. Taucare-Rios, C. Veloso, R.O. BustamanteAbstractTemperature is one of the most important environmental variables for organisms, especially for ectothermic animals. In fact, ectotherms must move within a relatively narrow range of temperatures where they are able to maximize their performance. We assessed the thermal ecology of female sand spiders (Sicarius thomisoides) in Chile from separate populations along an environmental gradient and different macro habitats (coast vs. inland locations). The parameters of thermal performa...
Source: Journal of Thermal Biology - October 30, 2018 Category: Biology Source Type: research

Thermophysiological simulations with Newton manikin equipped with a power assisted filtering device in cold environments
Publication date: Available online 30 October 2018Source: Journal of Thermal BiologyAuthor(s): Simona Del Ferraro, Tiziana Falcone, Francesca Tombolini, Bruna Maria Rondinone, Vincenzo Molinaro (Source: Journal of Thermal Biology)
Source: Journal of Thermal Biology - October 30, 2018 Category: Biology Source Type: research

Contrasting Thermal Strategies of Montane Neotropical Bats at High Elevations
Publication date: Available online 26 October 2018Source: Journal of Thermal BiologyAuthor(s): I. Garin, G. Chaverri, L. Jimenez, C. Castillo-Salazar, J. AihartzaAbstractIn the Neotropics, captive vespertilionid bats substantially reduce their metabolic rate at low ambient temperatures, similar to their temperate counterparts, whereas the ability of phyllostomids to lower metabolic rate seems to be more limited, even in mountain species. Nevertheless, field data on the thermal behaviour of syntopic individuals from these two families is lacking. Consequently, we aimed to test whether torpor was more common and deeper in ve...
Source: Journal of Thermal Biology - October 27, 2018 Category: Biology Source Type: research

Estradiol administration suppresses body temperature elevation induced by application of menthol to ovariectomized rats
Publication date: Available online 25 October 2018Source: Journal of Thermal BiologyAuthor(s): Yuki Uchida, Koyuki Atsumi, Shinji Hirano, Nao KoyanagiAbstractThe aim of the present study was to investigate the effect of estradiol (E2) on thermoregulatory responses induced by menthol in ovariectomized rats. Wistar rats were ovariectomized, and implanted with a silastic tube with or without E2 (E2(+) and E2(−) groups). L-menthol (10%) or vehicle was applied to the skin of the whole trunk in selected animals, which were then exposed to 27 °C or 16 °C for 2 h. Continuous body temperature (Tb), tail...
Source: Journal of Thermal Biology - October 26, 2018 Category: Biology Source Type: research

Complex body size differences in thermal tolerance among army ant workers (Eciton burchellii parvispinum)
Publication date: Available online 23 October 2018Source: Journal of Thermal BiologyAuthor(s): Kaitlin Baudier, Sean O’DonnellAbstractIn social insects, group members can differ in thermal physiology, and these differences may affect colony function. Upper thermal tolerance limits (CTmax) generally increase with body size among and within ant species, but size effects on lower thermal tolerances (CTmin) are poorly known. To test whether CTmin co-variation with body size matched patterns for CTmax, we measured CTmax and CTmin in workers of four size-based worker subcastes in the army ant Eciton burchellii parvispinum....
Source: Journal of Thermal Biology - October 23, 2018 Category: Biology Source Type: research

Relationship between residual feed intake and radiated heat loss using infrared thermography in young beef bulls
The objective of this study was to explore use of IRT to predict RFI in growing beef bulls. Sixty bulls in each of two years were fed either a forage-based or a grain-based ration. Eye (Ey) and cheek (Ck) surface temperatures were measured using infrared images of the head collected on 16 and 14 sample days in Years 1 and 2, respectively, using a FLIR S60 camera. In Year 2, infrared images were collected continuously using a within-pen FLIR A310 camera system. Bulls were grouped into low, medium and high classes based on ± 0.5 standard deviations of backfat adjusted residual feed intake (RFIFat); RFIFat values range...
Source: Journal of Thermal Biology - October 20, 2018 Category: Biology Source Type: research

Field Study of Neutrality Cabin Temperature for Chinese Passenger in Economy Class of Civil Aircraft
Publication date: Available online 19 October 2018Source: Journal of Thermal BiologyAuthor(s): Pang Liping, Zhang jie, WanYan Xiaoru, Fan Jun, Li ShuxinAbstractCabin thermal comfort is an important factor for the competitiveness of civil aviation. It has become a hot topic in recent years. However, there are still no clear standards for the thermal comfort in the aircraft cabin. In this paper, the cabin thermal comfort of passengers in 30 flights was investigated. Both objective and subjective data were collected in order to obtain a neutrality cabin temperature, Tnc. The investigation shows that the distribution of Therma...
Source: Journal of Thermal Biology - October 20, 2018 Category: Biology Source Type: research

Thermal tolerance varies with age and sex for the nonnative Italian Wall Lizard (Podarcis siculus) in Southern California
We examined ontogenetic and sex-based differences in thermal tolerances, preferred temperature, and temperature-dependent evaporative water loss rates in Italian Wall Lizards, Podarcis siculus, collected from an introduced population near Los Angeles, California, USA that were acclimated to laboratory conditions. Podarcis siculus has been introduced to multiple localities in the USA and the Mediterranean region and has demonstrated remarkable ability to adapt to novel climatic conditions. In the California population, adults of both sexes had a higher critical thermal maximum (CTmax) than juveniles, and adult females had a...
Source: Journal of Thermal Biology - October 20, 2018 Category: Biology Source Type: research

Postprandial energy expenditure of protein is affected by its phosphorus content
This study aimed at assessing the effect of P in PEE of normal and high protein meals. A single-blind randomized crossover study was conducted with two groups of 12 healthy lean male subjects who received iso-caloric (554 Kcal) meals. Group1: normal protein (NPr) meal with or without P (500 mg) and group 2: high protein (HPr) meal with or without P (500 mg), on two visits separated by a minimum of 1-week washout period. Energy expenditure and substrate oxidation were measured at baseline and every 30 min for 4 hours after meal ingestion using a ventilated hood for indirect calorimetry. NPr and HPr meals...
Source: Journal of Thermal Biology - October 20, 2018 Category: Biology Source Type: research

Ameliorative Effect of Dietary Supplementation of Copper Oxide Nanoparticles on Inflammatory and Immune Reponses in Commercial Broiler under Normal and Heat-Stress Housing Conditions
Publication date: Available online 19 October 2018Source: Journal of Thermal BiologyAuthor(s): Seham El-Kassas, Safaa E. Abdo, Karima El-Naggar, Walied Abdo, Abeer A.K. Kirrella, Toufic O NasharAbstractHeat stress (HS) is one of the most serious adverse conditions that affect poultry causing immunosuppression and decreasing production. In a novel approach, we investigated effects of supplementing copper oxide nanoparticles (CuO-NPs) on the immune response in two commercial broiler strains (Ross 308 and Cobb 500). At one day old, birds were divided into 3 groups with 3 replicates for each. The first group received diet supp...
Source: Journal of Thermal Biology - October 20, 2018 Category: Biology Source Type: research

Short term heat acclimation reduces heat stress, but is not augmented by dehydration
Publication date: Available online 19 October 2018Source: Journal of Thermal BiologyAuthor(s): Michael W. Schleh, Brent C. Ruby, Charles L. DumkeAbstractHeat acclimation lowers physiological strain when exercising in the heat, and may be enhanced by promoting dehydration during acclimation. The purpose was to compare fluid intake during heat acclimation by promoting dehydration (DEH=0.5 mL•kg−1•15 min−1, ~2.4% dehydration per acclimation session) compared to euhydration (EUH=2.0 mL•kg−1•15 min−1, ~1.4% dehydration per acclimation session) following four heat a...
Source: Journal of Thermal Biology - October 20, 2018 Category: Biology Source Type: research

Thermal tolerance and standard metabolic rate of juvenile European Sea Bass (Dicentrarchus labrax, Linnaeus, 1758) acclimated to four temperatures
Publication date: Available online 18 October 2018Source: Journal of Thermal BiologyAuthor(s): Mehmet Kır, Özgecan DemirciAbstractIn the current study, we report the thermal tolerance, standard metabolic rate (SMR) and preferred temperature of juvenile European sea bass (Dicentrarchus labrax) (1.2 ± 0.4 g) acclimated at 15, 20, 25 and 30 °C for 30 days. Dynamic and static thermal tolerance zones of juvenile European sea bass are 861 °C2 and 613 °C2, respectively. The European sea bass is a fish species with low thermal resistance, with a resistance zone area of 162.5 °C...
Source: Journal of Thermal Biology - October 19, 2018 Category: Biology Source Type: research

Limited differentiation of fundamental thermal niches within the killifish assemblage from shallow temporary waters
In this study, we examined fundamental thermal niches in three coexisting annual killifish species Nothobranchius furzeri, N. orthonotus and N. pienaari from temporary pools in southern Mozambique. We hypothesized that the disparate thermal requirements of the three congeneric species are a candidate niche component that facilitates their local coexistence. We estimated species’ thermal requirements as preferred body temperatures (Tpref) in a horizontal thermal gradient. Under thermal gradient conditions, sympatric killifish maintained their body temperatures within similar Tpref ranges despite some variation in mean...
Source: Journal of Thermal Biology - October 19, 2018 Category: Biology Source Type: research

The effect of captive breeding upon adult thermal preference in the Queensland Fruit Fly (Bactrocera tryoni)
Publication date: Available online 18 October 2018Source: Journal of Thermal BiologyAuthor(s): Kate E. Lynch, Thomas E. White, Darrell J. KempAbstractThe Queensland fruit fly (Bactrocera tryoni) is a generalist pest that poses a significant threat to the Australian horticultural industry. This species has become broadly established across latitudes that encompass tropical to temperate climates, and hence populations occupy diverse thermal niches. Successful expansion across this range may have been brokered by evolutionarily labile features of breeding phenology, physiology and/or behaviour. We explored the potential role ...
Source: Journal of Thermal Biology - October 19, 2018 Category: Biology Source Type: research

Combined effects of thermal conditions and food availability on thermal tolerance of the marine bivalve, Perna viridis
Publication date: Available online 18 October 2018Source: Journal of Thermal BiologyAuthor(s): Martin C.F. Cheng, Gianluca Sarà, Gray A. WilliamsAbstractOrganisms can mitigate the effects of long term variation in environmental conditions through acclimation, which involves changes in various physiological responses. To elucidate the possible effects of temperature and food concentrations on acclimation capacity, physiological responses of the mussel, Perna viridis, were measured after individuals were held for six weeks under varying temperatures and food availability. Warm-acclimated mussels experiencing higher fo...
Source: Journal of Thermal Biology - October 19, 2018 Category: Biology Source Type: research

An in vivo model to assess the thermoregulatory response of lactating Holsteins to an acute heat stress event occurring after a pharmacologically-induced LH surge
Publication date: Available online 17 October 2018Source: Journal of Thermal BiologyAuthor(s): Chelsea R. Abbott, Arnold M. Saxton, Louisa A. Rispoli, Rebecca R. Payton, Ky G. Pohler, F. Neal Schrick, J. Lannett EdwardsAbstractHyperthermia occurring 10 to 12 hours after LH surge reduces quality of maturing oocyte, thereby reducing fertility. Objective was to examine consequences of an acute heat stress and the influence of certain hormones on the thermoregulatory responses of lactating cows during this critical period. Between the months of February through May, cows were transported to a facility and maintained at a ...
Source: Journal of Thermal Biology - October 18, 2018 Category: Biology Source Type: research

Gastrointestinal thermal homogeneity and effect of cold water ingestion
Publication date: Available online 13 October 2018Source: Journal of Thermal BiologyAuthor(s): Beaufils Roxane, Koumar Ouma Chandrou, Chapon Pierre Alexandre, Chesneau Christophe, Sesboüé Bruno, Besnard Stéphane, Normand Hervé, Moussay Sébastien, Bessot NicolasAbstractPurposeGastrointestinal temperature (GIT) is a common alternative for body core temperature (CT) monitoring via an ingestible pill connected to an external monitor. However, its reliability could depend on thermal homogeneity, regardless of the gastrointestinal tract location. The purpose of this study was to evaluate GIT vari...
Source: Journal of Thermal Biology - October 14, 2018 Category: Biology Source Type: research

Faster physical performance recovery with cold water immersion is not related to lower muscle damage level in professional soccer players
Publication date: Available online 12 October 2018Source: Journal of Thermal BiologyAuthor(s): Mohamed Amine Bouzid, Kais Ghattassi, Wael Daab, Slim Zarzissi, Mustapha Bouchiba, Liwa Masmoudi, Hamdi ChtourouAbstractThe aim of the present study was to assess the effects of cold water immersion (CWI) after an intermittent test on the recovery kinetic of physical performance, muscle damage and perceived muscle soreness in professionals soccer players. In a randomized design, eight soccer players completed the Loughborough Intermittent Shuttle Test followed by 10 min of either CWI (10 C°) or thermoneutral water immersion (...
Source: Journal of Thermal Biology - October 13, 2018 Category: Biology Source Type: research

Sleep environments and sleep physiology: A review
Publication date: Available online 5 October 2018Source: Journal of Thermal BiologyAuthor(s): Olga Troynikov, Chris Watson, Nazia NawazAbstractSleep loss impairs task performance and post-physical activity recovery, cognitive performance and mood, heightens fatigue and decreases vigour; poor sleep quality impairs decision-making, the speed and accuracy of task performance, and post-exercise recovery.Sleep time and quality are affected by age, psychological and physiological conditions, culture and environmental factors. Skin temperature, rapid temperature change and sweating during sleep can significantly reduce sleep qual...
Source: Journal of Thermal Biology - October 7, 2018 Category: Biology Source Type: research

Contribution of wetted clothing to body energy exchange and heat stress
Publication date: Available online 5 October 2018Source: Journal of Thermal BiologyAuthor(s): John Elson, Steve EckelsAbstractQuantifying the impact of clothing thermal and evaporation resistance is essential to providing representative boundary conditions for physiological modeling. In many models, sweat is assumed to drip off the skin surface to the environment and is not captured in clothing. In high metabolic rate and high temperature and humidity conditions the sweat produced by the body has the potential to saturate semipermeable clothing ensembles, changing the assumptions of the model. Workers, athletes and soldier...
Source: Journal of Thermal Biology - October 7, 2018 Category: Biology Source Type: research

Heat stress in poultry production: Mitigation strategies to overcome the future challenges facing the global poultry industry
Publication date: December 2018Source: Journal of Thermal Biology, Volume 78Author(s): Aamir Nawab, Fahar Ibtisham, Guanghui Li, Barbara Kieser, Jiang Wu, Wenchao Liu, Yi Zhao, Yasir Nawab, Kongquan Li, Mei Xiao, Lilong AnAbstractWorldwide, the effect of climatic variations has become a great challenge in poultry production. As global climate is changing, it alters the environmental temperatures, precipitation patterns and atmospheric carbon dioxide. Poultry farming mainly depends on climatic conditions such as temperature and humidity. Several factors can be involved but heat stress is one of most important environmental ...
Source: Journal of Thermal Biology - October 5, 2018 Category: Biology Source Type: research

Discovering divergence in the thermal physiology of intertidal crabs along latitudinal gradients using an integrated approach with machine learning
Publication date: December 2018Source: Journal of Thermal Biology, Volume 78Author(s): Sebastian J.A. Osores, Gonzalo A. Ruz, Tania Opitz, Marco A. LardiesAbstractIn intertidal marine crustaceans, phenotypic variation in physiological and life-history traits is pervasive along latitudinal clines. However, organisms have complex phenotypes, and their traits do not vary independently but rather interact differentially between them, effect that is caused by genetic and/or environmental forces. We evaluated the geographic variation in phenotypic integration of three marine crab species that inhabit different vertical thermal m...
Source: Journal of Thermal Biology - October 5, 2018 Category: Biology Source Type: research

Early maternal separation promotes alterations in the thermoregulatory profile of adult wistar rats
In this study, we aimed to evaluate the thermoregulatory profile of adult male Wistar rats submitted to early-life stress by maternal separation (MS). On postnatal days 2 to 14, rats were submitted daily to MS for 3 hours per day. At 3-4 months of age, anxiety-like behavior was evaluated using the open field test and elevated plus maze, depression-like behavior was evaluated using the forced swim test and thermoregulatory profile were also evaluated. In the behavioral tests, MS animals exhibited anxiety- and depression-like behaviors, and had higher core body temperatures during dark period of the circadian cycle, whe...
Source: Journal of Thermal Biology - September 21, 2018 Category: Biology Source Type: research

A thermoregulation model for whole body cooling hypothermia
Publication date: Available online 20 September 2018Source: Journal of Thermal BiologyAuthor(s): Ana Beatriz de C.G.e Silva, Luiz C. Wrobel, Fernando L.B. RibeiroAbstractThis paper presents a thermoregulation model based on the finite element method to perform numerical analyses of brain cooling procedures as a contribution to the investigation on the use of therapeutic hypothermia after ischemia in adults. The use of computational methods can aid clinicians to observe body temperature using different cooling methods without the need of invasive techniques, and can thus be a valuable tool to assist clinical trials simulati...
Source: Journal of Thermal Biology - September 21, 2018 Category: Biology Source Type: research

From conceptual to computational: Cost and benefits of lizard thermoregulation revisited
Publication date: Available online 20 September 2018Source: Journal of Thermal BiologyAuthor(s): John G. Alford, William I. LutterschmidtABSTRACTA classic paper detailed conceptual analyses of behavioral thermoregulation (Huey and Slatkin 1976) and has served as the theoretical foundation for hundreds of investigative studies. Most recently, investigators have revisited this theoretical presentation to offer additional interpretation for both heterogeneity and spatial structure of temperature and how it may influence energetic costs (Sears and Angelletta, 2015). Interestingly, this foundational presentation by Huey and Sla...
Source: Journal of Thermal Biology - September 21, 2018 Category: Biology Source Type: research

A new look at survival times during cold water immersion
Publication date: Available online 18 September 2018Source: Journal of Thermal BiologyAuthor(s): Xiaojiang Xu, Gordon G. GiesbrechtAbstractThis paper presents an expanded dataset for survival times during cold water immersion. In 1946, the first set of human data for cold water survival was derived from the US Navy medical reports during WWII. Although this is the largest and most widely used data source, it has only 23 data points and immersion times are less than 5.5 hour for water temperature below 20 °C. For the new dataset, data (i.e., immersion times, water temperatures, clothing worn, and in some cases...
Source: Journal of Thermal Biology - September 19, 2018 Category: Biology Source Type: research

Honey bees are larger and live longer after developing at low temperature
Publication date: Available online 18 September 2018Source: Journal of Thermal BiologyAuthor(s): Hajnalka Szentgyörgyi, Krystyna Czekońska, Adam TofilskiAbstractHoney bees (Apis mellifera) are known to be temperature specialist and actively maintain brood temperature in a very narrow temperature range. Developing larvae are sensitive to changes of temperature in the nest. Temperatures lower than generally assumed as optimal have been shown to cause a number of negative developmental and behavioural changes in honey bees. We have reared both worker and drone larvae during the capped brood stage in cold (32 °C...
Source: Journal of Thermal Biology - September 18, 2018 Category: Biology Source Type: research

The preferred and avoidance temperatures of Thermocyclops crassus (Fischer, 1853) and their relation to the temperature of optimal, pessimal and normal performance of the species
Publication date: Available online 14 September 2018Source: Journal of Thermal BiologyAuthor(s): Vladimir B. Verbitsky, Valentina I. Lazareva, Elena N. Medyantseva, Olga A. Malysheva, Svetlana M. Zhdanova, Tamara I. Verbitskaya, Andrey K. GrishaninGraphical abstract (Source: Journal of Thermal Biology)
Source: Journal of Thermal Biology - September 15, 2018 Category: Biology Source Type: research

Could FA-PG-SPIONs act as a hyperthermia sensitizing agent? An in vitro study
Publication date: Available online 14 September 2018Source: Journal of Thermal BiologyAuthor(s): Hamid Fakhimikabir, Mohamad Bagher Tavakoli, Ali Zarrabi, Alireza Amouheidari, Soheila RahgozarAbstractThe therapeutic effect of polyglycerol coated iron oxide nanoparticles (PG-SPIONs, non-targeted nanoparticles) and folic acid-conjugated polyglycerol coated iron oxide nanoparticles (FA-PG-SPIONs, targeted nanoparticles) in combination with hyperthermia on viability of HeLa cells was investigated. It was observed that coated and uncoated SPIONs have spherical shapes with an average diameter of 17.9±2.85 nm and 5.4&...
Source: Journal of Thermal Biology - September 15, 2018 Category: Biology Source Type: research

Impact of short- and long-term heat stress on reproductive potential of Drosophila suzukii Matsumura (Diptera: Drosophilidae)
This study provides basic information on thermal biology of D. suzukii to help us better understand the trends commonly observed in D. suzukii trap captures in regions with hot summer conditions, and the results can be used in population models to predict its population dynamics in regions where high temperatures prevail during the field season. (Source: Journal of Thermal Biology)
Source: Journal of Thermal Biology - September 15, 2018 Category: Biology Source Type: research

Water temperature modifies the acute stress response of European sea bass, Dicentrarchus labrax L. (1758)
Publication date: Available online 13 September 2018Source: Journal of Thermal BiologyAuthor(s): Samaras Athanasios, Papandroulakis Nikos, Lika Konstadia, Pavlidis MichailAbstractThe effects of water temperature (15, 20 and 25 °C) on the stress response of European sea bass, Dicentrarchus labrax, were studied. Blood and water samples were collected prior and at 0.5, 1, 2, 4 and 8 hours post-stress for hormonal and biochemical analysis. Water temperature affected the resting concentrations of all stress indicators examined, as well as their response after stress, apart from lactate which response was unaffecte...
Source: Journal of Thermal Biology - September 14, 2018 Category: Biology Source Type: research

Identification and characterization of the catalase gene involved in resistance to thermal stress in Heortia vitessoides using RNA interference
Publication date: Available online 13 September 2018Source: Journal of Thermal BiologyAuthor(s): Jie Cheng, Chun-Yan Wang, Zi-Hao Lyu, Jing-Xiang Chen, Tong LinAbstractTo elucidate the role of catalase (CAT) in Heortia vitessoides Moore, which is one of the most destructive defoliating pests in Aquilaria sinensis (Loureiro) Sprenger forests, a CAT gene (HvCAT) was identified in the transcriptome of adult H. vitessoides. Sequence analyses indicated that HvCAT encodes a protein containing 507 amino acids, including a proximal active site sequence (FXRERIPERVVHAKGXGA), heme-ligand sequence (RLFSYNDTX), heme-binding residues (...
Source: Journal of Thermal Biology - September 14, 2018 Category: Biology Source Type: research

The emergence emergency: a mudskipper's response to temperatures
This study examined the relationship between prolonged (5 weeks) exposure to a range of temperatures (22, 25, 28, or 32 °C) on oxygen uptake rate and movement behaviours (i.e., thermoregulation and emergence) in a common amphibious fish, the barred mudskipper (Periophthalmus argentilneatuis). At the highest temperature examined (32 °C, approximately 5 °C above their summer average temperatures), barred mudskippers exhibited 33.7 to 97.7% greater oxygen uptake rates at rest (ṀO2Rest), emerged at a higher temperature (CTe; i.e., a modified critical thermal maxima (CTMax) methodology) of 41.3&plus...
Source: Journal of Thermal Biology - September 12, 2018 Category: Biology Source Type: research

Effects of developmental acclimation on fitness costs differ between two aphid species
Publication date: Available online 11 September 2018Source: Journal of Thermal BiologyAuthor(s): Jun-Yu Cao, Kun Xing, Hui-Ping Liu, Fei ZhaoAbstractMost ectotherms are able to increase their tolerance to heat stress via the acclimation response. However, there is ongoing debate about whether the acclimation response is associated with fitness costs, and what factors can affect the consequences of acclimation are still unclear. To elucidate this, we sought to determine whether fitness costs varied with acclimation conditions in two cereal aphids, Sitobion avenae and Rhopalosiphum padi. Thus, the basal and inducible thermal...
Source: Journal of Thermal Biology - September 12, 2018 Category: Biology Source Type: research

A new local index for predicting local thermal response of individual body segments
Publication date: Available online 10 September 2018Source: Journal of Thermal BiologyAuthor(s): Negin Moallemi Khiavi, Mehdi Maerefat, Seyed Alireza ZolfaghariAbstractPhysiologically, the thermal sensation/perception of human body is related to the response of cutaneous thermoreceptors (TRs) to the environment. However, the thermal response of skin warm and cold TRs is a function of two important factors: TRs temperatures and their time derivative at the subcutaneous locations of TRs. The available thermal models based on TRs response consider the same sensitivity for all thermal receptors of body. Thus, they estimate an ...
Source: Journal of Thermal Biology - September 11, 2018 Category: Biology Source Type: research

Scrotal Infrared Digital Thermography Predicts Effects of Thermal Stress on Buffalo (Bubalus bubalis) Semen
The objective was to use scrotal infrared digital thermography to evaluate effects of thermal stress on semen quality of Murrah buffalo (Bubalus bubalis) breeding bulls. Ejaculates from 109 Murrah bulls maintained at three semen stations were evaluated for: ejaculate volume, sperm concentration (SCON), initial motility (IM), percent live sperm (LIVE), acrosome integrity of fresh semen (AIFS), plasma membrane integrity of fresh semen (PMIFS), head abnormalities of fresh semen (HAFS), midpiece abnormalities of fresh semen (MPAFS), tail abnormalities of fresh semen (TAFS), post-thaw motility (PTM), acrosome integrity of post-...
Source: Journal of Thermal Biology - September 11, 2018 Category: Biology Source Type: research

Editorial Board
Publication date: October 2018Source: Journal of Thermal Biology, Volume 77Author(s): (Source: Journal of Thermal Biology)
Source: Journal of Thermal Biology - September 7, 2018 Category: Biology Source Type: research