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https://www.readbyqxmd.com/read/28735225/no-consistent-cooling-of-the-real-hand-in-the-rubber-hand-illusion
#1
Alyanne M de Haan, Haike E Van Stralen, Miranda Smit, Anouk Keizer, Stefan Van der Stigchel, H Chris Dijkerman
In the rubber hand illusion (RHI), participants view a rubber hand that is stroked synchronously with their real, hidden hand. This procedure results in experiencing an increased sense of ownership over the rubber hand and demonstrates how multisensory information (vision, touch) can influence the sense of body ownership. However, it has also been suggested that a (lack of) sense of ownership over an own body part may in turn influence bodily processes. This suggestion has previously been supported by the observation that a decrease in skin temperature in the real hand correlated with ownership over the rubber hand...
July 20, 2017: Acta Psychologica
https://www.readbyqxmd.com/read/28731817/infrared-spectrometer-for-exomars-a-mast-mounted-instrument-for-the-rover
#2
Oleg I Korablev, Yurii Dobrolensky, Nadezhda Evdokimova, Anna A Fedorova, Ruslan O Kuzmin, Sergei N Mantsevich, Edward A Cloutis, John Carter, Francois Poulet, Jessica Flahaut, Andrew Griffiths, Matthew Gunn, Nicole Schmitz, Javier Martín-Torres, Maria-Paz Zorzano, Daniil S Rodionov, Jorge L Vago, Alexander V Stepanov, Andrei Yu Titov, Nikita A Vyazovetsky, Alexander Yu Trokhimovskiy, Alexander G Sapgir, Yurii K Kalinnikov, Yurii S Ivanov, Alexei A Shapkin, Andrei Yu Ivanov
ISEM (Infrared Spectrometer for ExoMars) is a pencil-beam infrared spectrometer that will measure reflected solar radiation in the near infrared range for context assessment of the surface mineralogy in the vicinity of the ExoMars rover. The instrument will be accommodated on the mast of the rover and will be operated together with the panoramic camera (PanCam), high-resolution camera (HRC). ISEM will study the mineralogical and petrographic composition of the martian surface in the vicinity of the rover, and in combination with the other remote sensing instruments, it will aid in the selection of potential targets for close-up investigations and drilling sites...
June 2017: Astrobiology
https://www.readbyqxmd.com/read/28730319/management-of-postoperative-junctional-ectopic-tachycardia-in-pediatric-patients-a-survey-of-30-centers-in-germany-austria-and-switzerland
#3
Andreas Entenmann, Miriam Michel, Ulrike Herberg, Nikolaus Haas, Matthias Kumpf, Matthias Gass, Friedemann Egender, Roman Gebauer
Postoperative junctional ectopic tachycardia (JET) is a frequent complication after pediatric cardiac surgery. Current recommendations on how and when to treat JET are inconsistent. We evaluated the management strategies of postoperative JET in German-speaking countries. We sent an online survey to 30 centers of pediatric cardiology that perform surgery for congenital heart defects in Germany (24), Austria (4), and Switzerland (2). The survey asked 18 questions about how and in what treatment sequence postoperative JET was managed...
July 21, 2017: European Journal of Pediatrics
https://www.readbyqxmd.com/read/28728675/increased-striatal-dopamine-synthesis-capacity-in-gambling-addiction
#4
Ruth J van Holst, Guillaume Sescousse, Lieneke K Janssen, Marcel Janssen, Anne S Berry, William J Jagust, Roshan Cools
BACKGROUND: The hypothesis that dopamine plays an important role in the pathophysiology of pathological gambling is pervasive. However, there is little to no direct evidence for a categorical difference between pathological gamblers and healthy control subjects in terms of dopamine transmission in a drug-free state. Here we provide evidence for this hypothesis by comparing dopamine synthesis capacity in the dorsal and ventral parts of the striatum in 13 pathological gamblers and 15 healthy control subjects...
June 16, 2017: Biological Psychiatry
https://www.readbyqxmd.com/read/28726024/thermal-physiology-of-three-sympatric-and-syntopic-liolaemidae-lizards-in-cold-and-arid-environments-of-patagonia-argentina
#5
F Duran, E L Kubisch, Jorgelina M Boretto
The thermal physiology determines the whole biology of ectotherm organisms, by limiting their acquisition and allocation of resources. Herein, we aim to add knowledge on how different species use the thermal resources when they coexist in a habitat, studying the thermal physiology of three sympatric and syntopic liolaemid lizards, Phymaturus querque, Phymaturus zapalensis, and Liolaemus elongatus during the summer season. We measured the body temperatures at capture places, the operative microenvironmental temperatures in the field, and the preferred body temperature in an experimental thermal gradient in the laboratory...
July 19, 2017: Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology
https://www.readbyqxmd.com/read/28725376/moving-south-effects-of-water-temperatures-on-the-larval-development-of-invasive-cane-toads-rhinella-marina-in-cool-temperate-australia
#6
Uditha Wijethunga, Matthew Greenlees, Richard Shine
The distributional limits of many ectothermic species are set by thermal tolerances of early-developmental stages in the life history; embryos and larvae often are less able to buffer environmental variation than are conspecific adults. In pond-breeding amphibians, for example, cold water may constrain viability of eggs and larvae, even if adults can find suitable thermal conditions in terrestrial niches. Invasive species provide robust model systems for exploring these questions, because we can quantify thermal challenges at the expanding range edge (from field surveys) and larval responses to thermal conditions (in the laboratory)...
October 2016: Ecology and Evolution
https://www.readbyqxmd.com/read/28715283/temperate-water-immersion-as-a-treatment-for-hyperthermic-humans-wearing-american-football-uniforms
#7
Kevin C Miller, Tyler Truxton, Blaine Long
CONTEXT:   Cold-water immersion (CWI; 10°C) can effectively reduce body core temperature even if a hyperthermic human is wearing a full American football uniform (PADS) during treatment. Temperate-water immersion (TWI; 21°C) may be an effective alternative to CWI if resources for the latter (eg, ice) are unavailable. OBJECTIVE:   To measure rectal temperature (Trec) cooling rates, thermal sensation, and Environmental Symptoms Questionnaire (ESQ) scores of participants wearing PADS or shorts, undergarments, and socks (NOpads) before, during, and after TWI...
July 17, 2017: Journal of Athletic Training
https://www.readbyqxmd.com/read/28708472/rectal-instillation-of-cold-fluids-for-targeted-temperature-management-after-cardiac-arrest-a-case-report
#8
Andrej Markota, Jure Fluher, Andreja Sinkovič
The optimal method of temperature management after cardiac arrest remains unknown. Methods that are most effective are usually invasive and expensive. Noninvasive methods are not as effective and obstruct access to the patient. Temperature management via rectal cooling offers some potential advantages in survivors of cardiac arrest, namely, relatively large volumes of temperature-controlled fluids can be instilled, access to the patient is not obstructed, and fluid overload can be ameliorated by removal of a fraction of instilled fluid...
July 14, 2017: Therapeutic Hypothermia and Temperature Management
https://www.readbyqxmd.com/read/28706989/inactivation-of-thermogenic-ucp1-as-a-historical-contingency-in-multiple-placental-mammal-clades
#9
Michael J Gaudry, Martin Jastroch, Jason R Treberg, Michael Hofreiter, Johanna L A Paijmans, James Starrett, Nathan Wales, Anthony V Signore, Mark S Springer, Kevin L Campbell
Mitochondrial uncoupling protein 1 (UCP1) is essential for nonshivering thermogenesis in brown adipose tissue and is widely accepted to have played a key thermoregulatory role in small-bodied and neonatal placental mammals that enabled the exploitation of cold environments. We map ucp1 sequences from 133 mammals onto a species tree constructed from a ~51-kb sequence alignment and show that inactivating mutations have occurred in at least 8 of the 18 traditional placental orders, thereby challenging the physiological importance of UCP1 across Placentalia...
July 2017: Science Advances
https://www.readbyqxmd.com/read/28701705/development-of-sodium-acetate-trihydrate-ethylene-glycol-composite-phase-change-materials-with-enhanced-thermophysical-properties-for-thermal-comfort-and-therapeutic-applications
#10
Rohitash Kumar, Sumita Vyas, Ravindra Kumar, Ambesh Dixit
The heat packs using phase change materials (PCMs) are designed for possible applications such as body comfort and medical applications under adverse situations. The development and performance of such heat packs rely on thermophysical properties of PCMs such as latent heat, suitable heat releasing temperature, degree of supercooling, effective heat releasing time, crystallite size, stability against spontaneous nucleation in metastable supercooled liquid state and thermal stability during heating and cooling cycles...
July 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28700518/agility-and-vertical-jump-performances-are-impacted-by-acute-cool-exposure
#11
Lara A Carlson, Cara Fowler, Michael A Lawrence
Outdoor sports teams may be exposed to acute cold stress during competition, which may affect performance. Limited research has explored the effects of cold exposure on athletic components. The purpose of this study was to examine the effects of an acute whole-body cool exposure on pro-agility, vertical jump, and sprint performances. Eleven lightly clothed (∼0.3 clo) and not cold acclimatized volunteers (10/1 women/men: age 20.5 ± 0.5 y; height 1.65 ± 0.09 m; mass 63.3 ± 8.9 kg; body fat 21.3 ± 7.6%) completed performance tests in both thermoneutral (17...
July 8, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28697504/effects-of-a-training-program-involving-body-cooling-on-physical-and-cognitive-capacities-and-quality-of-life-in-multiple-sclerosis-patients-a-pilot-study
#12
Benoit Gonzales, Gilles Chopard, Benjamin Charry, Eric Berger, Julien Tripard, Eloi Magnin, Alain Groslambert
OBJECTIVE: Two methods using exercise and body cooling could influence the well-being of patients with multiple sclerosis (PwMS). The aim of this study was to determine whether wearing a cooling vest during a physical training program could increase the cognitive and physical capacities and quality of life in PwMS. METHODS: Eighteen PwMS (49.6 ± 8 years; Expanded Disability Status Score 5.0 ± 1.0) were randomly assigned to a cooling or control group. PwMS underwent a 7-week physical training program...
July 12, 2017: European Neurology
https://www.readbyqxmd.com/read/28689717/compensation-of-thermal-constraints-along-a-natural-environmental-gradient-in-a-malagasy-iguanid-lizard-oplurus-quadrimaculatus
#13
Ole Theisinger, W Berg, K H Dausmann
Physiological or behavioural adjustments are a prerequisite for ectotherms to cope with different thermal environments. One of the world's steepest environmental gradients in temperature and precipitation can be found in southeastern Madagascar. This unique gradient allowed us to study the compensation of thermal constraints in the heliothermic lizard Oplurus quadrimaculatus on a very small geographic scale. The lizard occurs from hot spiny forest to intermediate gallery and transitional forest to cooler rain forest and we investigated whether these habitat differences are compensated behaviourally or physiologically...
August 2017: Journal of Thermal Biology
https://www.readbyqxmd.com/read/28688184/root-surface-temperature-variation-during-mechanical-removal-of-root-canal-filling-material-an-in-vitro-study
#14
Martín García-Cuerva, Lucía Horvath, Laura Pinasco, Verónica Ciparelli, Ariel Gualtieri, Ana C Casadoumecq, Pablo Rodríguez, Carlos Gonzalez-Zanotto
The aim of this study was to analyze in vitro temperature changes on the outer surface of the dental root during mechanical filling removal procedures. Thirty recently extracted single-rooted lower premolars were cut transversally at 16 mm from the apex in order to standardize sample length. Endodontic treatment was performed on them. The filling material was subsequently removed using Gates Glidden (G1, G2, G3); Peeso (P1, P2, P3) and PostecPlus FRC (FRC) reamers while temperatures were measured on the outer surface using a digital device with thermocouple at 0, 2, 4, 6, 8, 10 and 15 seconds...
April 2017: Acta Odontológica Latinoamericana: AOL
https://www.readbyqxmd.com/read/28686659/clearing-muddied-waters-capture-of-environmental-dna-from-turbid-waters
#15
Kelly E Williams, Kathryn P Huyvaert, Antoinette J Piaggio
Understanding the differences in efficiencies of various methods to concentrate, extract, and amplify environmental DNA (eDNA) is vital for best performance of eDNA detection. Aquatic systems vary in characteristics such as turbidity, eDNA concentration, and inhibitor load, thus affecting eDNA capture efficiency. Application of eDNA techniques to the detection of terrestrial invasive or endangered species may require sampling at intermittent water sources that are used for drinking and cooling; these water bodies may often be stagnant and turbid...
2017: PloS One
https://www.readbyqxmd.com/read/28685647/effects-of-a-phase-change-cooling-garment-during-exercise-in-the-heat
#16
Cory L Butts, Madeline L Torretta, Cody R Smith, Adam J Petway, Brendon P McDermott
The purpose of our study was to examine the physiological, perceptual, and performance effects of wearing a phase change cooling garment (CG) during an interval exercise routine in the heat. Sixteen male participants (age 23 ± 3 years, ht 1.76 ± 0.11 m; wt 78.5 ± 11.2 kg; body fat 15.2 ± 5.8%) completed two trials (one with phase change inserts, CG, and one control without inserts) consisting of two submaximal exercise portions separated by 5-minute seated rest, and a final maximal effort performance bout...
July 7, 2017: European Journal of Sport Science
https://www.readbyqxmd.com/read/28684465/avian-thermoregulation-in-the-heat-resting-metabolism-evaporative-cooling-and-heat-tolerance-in-sonoran-desert-songbirds
#17
Eric Krabbe Smith, Jacqueline J O'Neill, Alexander R Gerson, Andrew E McKechnie, Blair O Wolf
We examined thermoregulatory performance in seven Sonoran Desert passerine bird species varying in body mass from 10 to 70g - Lesser Goldfinch, House Finch, Pyrrhuloxia, Cactus Wren, Northern Cardinal, Abert's Towhee and Curve-billed Thrasher. Using flow-through respirometry we measured daytime resting metabolism, evaporative water loss and body temperature at air temperatures (Tair) between 30° and 52°C. We found marked increases in resting metabolism above the upper critical temperature (Tuc), which for six of the seven species fell within a relatively narrow range (36...
July 6, 2017: Journal of Experimental Biology
https://www.readbyqxmd.com/read/28676379/effects-of-nutrient-and-water-restriction-on-thermal-tolerance-a-test-of-mechanisms-and-hypotheses
#18
Katherine A Mitchell, Leigh Boardman, Susana Clusella-Trullas, John S Terblanche
Nutritional deprivation or desiccation can influence thermal tolerance by impacting the insects' ability to evaporatively cool, maintain cell membrane integrity and conduct protective or repair processes. Recovery from chilling is also linked to the re-establishment of iono- and osmo-regulatory homeostasis. Here, using Mediterranean fruit fly (Ceratitis capitata, Diptera: Tephritidae), we manipulated water and nutrient availability to test the mechanistic expectation that changes in whole organism lipid and water content can elicit variation in cold or heat tolerance (scored as chill coma recovery time and heat knockdown time)...
July 1, 2017: Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology
https://www.readbyqxmd.com/read/28666073/to-cool-or-too-cool-is-reducing-dialysate-temperature-the-optimal-approach-to-preventing-intradialytic-hypotension
#19
John W Larkin, Marta M Reviriego-Mendoza, Len A Usvyat, Peter Kotanko, Franklin W Maddux
Abnormal decreases in blood pressure during hemodialysis are frequent in end stage renal disease (ESRD) patients treated with hemodialysis, and thought to be largely due to an inadequate cardiovascular response to the rapid blood volume decline. Intradialytic hypotension (IDH) and cardiac instability during dialysis can increase risks for negative health consequences and is possibly preventable though several types of interventions. One intervention that holds promise for prevention of IDH in hemodialysis patients is to reduce the temperature of the dialysate to or below the patient's core temperature...
June 30, 2017: Seminars in Dialysis
https://www.readbyqxmd.com/read/28664829/quantification-of-induced-hypothermia-from-aseptic-scrub-applications-during-rodent-surgery-preparation
#20
Anna M Skorupski, Jingyi Zhang, Danielle Ferguson, Frank Lawrence, F Claire Hankenson
Laboratory mice (Mus musculus) are prone to develop hypothermia during anesthesia for surgery, thus potentially impedinganesthetic recovery, wound healing, and future health. The core body temperatures of isoflurane-anesthetized mice areinfluenced by the choice of supplemental heat sources; however, the contribution of various surgical scrubs on the bodytemperatures of mice under gas anesthesia has not been assessed. We sought to quantify the effect of using alcohol (70%isopropyl alcohol [IPA]) compared with saline to rinse away surgical scrub on the progression of hypothermia in anesthetizedmice (n = 47)...
June 29, 2017: Journal of the American Association for Laboratory Animal Science: JAALAS
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