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https://www.readbyqxmd.com/read/27919432/comparison-of-the-backjoy-sitsmart-relief-and-spine-buddy-lt1-h-c-ergonomic-chair-supports-on-short-term-neck-and-back-pain
#1
John Ward, Jesse Coats
OBJECTIVE: The purpose of this study was to perform a needs assessment to determine whether short-term use of BackJoy SitSmart Relief and Spine Buddy LT1 H/C chair supports influences neck, upper back, and lower back pain. METHODS: Forty-eight college students (age, 27.5 ± 6.3 years; height, 1.72 ± 0.08 m; body mass, 78.7 ± 19.8 kg; time seated that day, 4.3 ± 2.8 hours; means ± SD) were recruited for this study. The Nordic Musculoskeletal Questionnaire was used to measure pain for the neck, upper back, and lower back regions...
December 2, 2016: Journal of Manipulative and Physiological Therapeutics
https://www.readbyqxmd.com/read/27917468/dry-skin-conditions-are-related-to-the-recovery-rate-of-skin-temperature-after-cold-stress-rather-than-to-blood-flow
#2
Yasuko Yoshida-Amano, Tomoko Nomura, Yoshinori Sugiyama, Kayoko Iwata, Yuko Higaki, Masanori Tanahashi
BACKGROUND: Cutaneous blood flow plays an important role in the thermoregulation, oxygen supply, and nutritional support necessary to maintain the skin. However, there is little evidence for a link between blood flow and skin physiology. Therefore, we conducted surveys of healthy volunteers to determine the relationship(s) between dry skin properties and cutaneous vascular function. METHODS: Water content of the stratum corneum, transepidermal water loss, and visual dryness score were investigated as dry skin parameters...
December 4, 2016: International Journal of Dermatology
https://www.readbyqxmd.com/read/27908662/too-cool-symbolic-but-not-iconic-stimuli-impair-4-year-old-children-s-performance-on-the-delay-of-gratification-choice-paradigm
#3
Lisa G Labuschagne, Taylor-Jane Cox, Kaitlyn Brown, Damian Scarf
A common method of improving the performance of children and non-human primates on the delay-of-gratification maintenance paradigm and measures of executive function (e.g., the Less is More task) is to represent the rewards subjects can acquire symbolically. This method, known as symbolic distancing, is thought to lower activation of the "hot" impulsive system and allow the "cool" rational system to dominate processing. Surprisingly, in contrast to its impact on the measures noted above, recent developmental and comparative studies have reported that symbolic distancing has a null or negative impact on performance on the delay-of-gratification choice paradigm...
November 28, 2016: Behavioural Processes
https://www.readbyqxmd.com/read/27902906/generalized-tetanus-in-a-gyrfalcon-falco-rusticolus-with-pododermatitis
#4
Hugues Beaufrère, Delphine Laniesse, Paul Stickings, Robert Tierney, Thea Sesardic, Durda Slavic, Nicole Compo, Dale A Smith
A 2-yr-old male gyrfalcon ( Falco rusticolus ) was presented for severe and generalized muscle spasticity and pododermatitis. The falcon had been treated for pododermatitis over the previous 4 mo. Muscle rigidity and spasms involved the entire bird but were more severe on the right leg. The bird was also tachypneic and hyperthermic at 45 C. While the plantar pododermatitis lesions had healed, there was still a small abscess on the lateral aspect of the right foot. Clinical signs were consistent with tetanus...
December 2016: Avian Diseases
https://www.readbyqxmd.com/read/27898162/residual-limb-skin-temperature-and-thermal-comfort-in-people-with-amputation-during-activity-in-a-cold-environment
#5
Ava D Segal, Glenn K Klute
Thermal comfort remains a common problem for people with lower-limb amputation. Both donning a prosthesis and engaging in activity at room temperature can increase residual limb skin temperature; however, the effects of activity on skin temperature and comfort in more extreme environments remain unknown. We examined residual limb skin temperatures and perceived thermal comfort (PTC; 11-point Likert scale) of participants with unilateral transtibial amputation (n = 8) who were snowshoeing in a cold environment...
2016: Journal of Rehabilitation Research and Development
https://www.readbyqxmd.com/read/27897283/identification-of-photofragmentation-patterns-in-trihalide-anions-by-global-analysis-of-vibrational-wavepacket-dynamics-in-broadband-transient-absorption-data
#6
Sebastian Schott, Lea Ress, Jan Hrušák, Patrick Nuernberger, Tobias Brixner
Trihalide anions are linear molecules that can be photodissociated with ultraviolet (UV) light. Whereas deep-UV excitation leads to three-body dissociation, for near-UV excitation just one molecular bond is cleaved, which notionally opens up the possibility for different fragmentation patterns. Here, we explore whether the dihalide fragment is formed as an anionic or neutral species and whether heteronuclear trihalides can lead to two different dihalides. The analysis is based on pronounced wavepacket dynamics induced by femtosecond UV pulses and associated both with the initial trihalide and the nascent dihalide species...
November 29, 2016: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/27892452/the-perfect-glass-paradigm-disordered-hyperuniform-glasses-down-to-absolute-zero
#7
G Zhang, F H Stillinger, S Torquato
Rapid cooling of liquids below a certain temperature range can result in a transition to glassy states. The traditional understanding of glasses includes their thermodynamic metastability with respect to crystals. However, here we present specific examples of interactions that eliminate the possibilities of crystalline and quasicrystalline phases, while creating mechanically stable amorphous glasses down to absolute zero temperature. We show that this can be accomplished by introducing a new ideal state of matter called a "perfect glass"...
November 28, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27891612/neurovascular-mechanisms-underlying-augmented-cold-induced-reflex-cutaneous-vasoconstriction-in-human-hypertension
#8
Jody L Greaney, W Larry Kenney, Lacy M Alexander
Despite ample evidence of dysregulated sympathetic control of the peripheral vasculature in hypertension, no studies have examined integrated neurovascular function during cold stress in hypertensive adults (HTN). We hypothesized that (1) whole-body cooling would elicit greater cutaneous vasoconstriction and greater increases in skin sympathetic nervous system activity (SSNA) in HTN (n = 14; 56 ± 2 yrs) compared to age-matched normotensive adults (NTN; n = 14; 55 ± 2 yrs) and (2) augmented reflex vasoconstriction in HTN would be mediated by an increase in cutaneous vascular adrenergic sensitivity and a greater contribution of non-adrenergic sympathetic co-transmitters...
November 28, 2016: Journal of Physiology
https://www.readbyqxmd.com/read/27888923/determination-of-time-of-death-in-forensic-science-via-a-3-d-whole-body-heat-transfer-model
#9
Catherine Bartgis, Alexander M LeBrun, Ronghui Ma, Liang Zhu
This study is focused on developing a whole body heat transfer model to accurately simulate temperature decay in a body postmortem. The initial steady state temperature field is simulated first and the calculated weighted average body temperature is used to determine the overall heat transfer coefficient at the skin surface, based on thermal equilibrium before death. The transient temperature field postmortem is then simulated using the same boundary condition and the temperature decay curves at several body locations are generated for a time frame of 24h...
December 2016: Journal of Thermal Biology
https://www.readbyqxmd.com/read/27886563/nanomechanical-properties-wear-resistance-and-in-vitro-characterization-of-ta2o5-nanotubes-coating-on-biomedical-grade-ti-6al-4v
#10
Masoud Sarraf, Bushroa Abdul Razak, Bahman Nasiri-Tabrizi, Ali Dabbagh, Noor Hayaty Abu Kasim, Wan Jefrey Basirun, Eshamsul Bin Sulaiman
Tantalum pentoxide nanotubes (Ta2O5 NTs) can dramatically raise the biological functions of different kinds of cells, thus have promising applications in biomedical fields. In this study, Ta2O5 NTs were prepared on biomedical grade Ti-6Al-4V alloy (Ti64) via physical vapor deposition (PVD) and a successive two-step anodization in H2SO4: HF (99:1)+5% EG electrolyte at a constant potential of 15V. To improve the adhesion of nanotubular array coating on Ti64, heat treatment was carried out at 450°C for 1h under atmospheric pressure with a heating/cooling rate of 1°Cmin(-)(1)...
November 16, 2016: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/27886022/fracture-risk-of-vertebral-bodies-after-cryosurgery-using-a-miniature-cryoprobe-a-biomechanical-in-vitro-analysis-on-human-bones
#11
K Zarghooni, L Westermann, R Sobottke, M Röllinghoff, J Bredow, J Siewe, Peer Eysel, M J Scheyerer
INTRODUCTION: Due to spinal instability and compressive neurologic deficits surgical management is sometimes necessary in patients with metastatic spinal lesions. However, in some cases open surgery is not possible and minimally invasive procedures, like cryoablation, are needed. The aim of the current study was to investigate whether a miniature cryoprobe provides adequate tissue cooling in vertebrae and to evaluate the direct impact of cryosurgery on vertebral body stability. MATERIALS AND METHODS: Twelve thoracic vertebral bodies were harvested from fresh cadavers...
November 18, 2016: Technology and Health Care: Official Journal of the European Society for Engineering and Medicine
https://www.readbyqxmd.com/read/27878078/cool-habitats-support-darker-and-bigger-butterflies-in-australian-tropical-forests
#12
Shuang Xing, Timothy C Bonebrake, Chin Cheung Tang, Evan J Pickett, Wenda Cheng, Sasha E Greenspan, Stephen E Williams, Brett R Scheffers
Morphology mediates the relationship between an organism's body temperature and its environment. Dark organisms, for example, tend to absorb heat more quickly than lighter individuals, which could influence their responses to temperature. Therefore, temperature-related traits such as morphology may affect patterns of species abundance, richness, and community assembly across a broad range of spatial scales. In this study, we examined variation in color lightness and body size within butterfly communities across hot and cool habitats in the tropical woodland-rainforest ecosystems of northeast Queensland, Australia...
November 2016: Ecology and Evolution
https://www.readbyqxmd.com/read/27875660/successful-use-of-targeted-temperature-management-after-repair-of-myocardial-rupture-from-blunt-chest-trauma-a-case-report
#13
Wook-Jin Choi, Yun Seok Kim, Jung Seok Hong, Jeong Won Kim
Targeted temperature management (TTM) improves survival and neurological outcome after nontraumatic cardiac arrest. However, TTM is not used widely after traumatic cardiac arrest because of concerns that it might exacerbate bleeding. We report the use of postarrest TTM after repair of blunt myocardial rupture. A 48-year-old man was admitted after being rescued from a major traffic accident by the local emergency service. Focused sonography showed pericardial fluid without cardiac tamponade. Computed tomography showed a large hematoma in the anterior mediastinum associated with hemopericardium...
November 22, 2016: Therapeutic Hypothermia and Temperature Management
https://www.readbyqxmd.com/read/27874299/cooling-effectiveness-of-a-modified-cold-water-immersion-method-after-exercise-induced-hyperthermia
#14
Katherine E Luhring, Cory L Butts, Cody R Smith, Jeffrey A Bonacci, Ramon C Ylanan, Matthew S Ganio, Brendon P McDermott
CONTEXT:  Recommended treatment for exertional heat stroke includes whole-body cold-water immersion (CWI). However, remote locations or monetary or spatial restrictions can challenge the feasibility of CWI. Thus, the development of a modified, portable CWI method would allow for optimal treatment of exertional heat stroke in the presence of these challenges. OBJECTIVE:  To determine the cooling rate of modified CWI (tarp-assisted cooling with oscillation [TACO]) after exertional hyperthermia...
November 22, 2016: Journal of Athletic Training
https://www.readbyqxmd.com/read/27865532/tarp-assisted-cooling-as-a-method-of-whole-body-cooling-in-hyperthermic-individuals
#15
Yuri Hosokawa, William M Adams, Luke N Belval, Lesley W Vandermark, Douglas J Casa
STUDY OBJECTIVE: We investigated the efficacy of tarp-assisted cooling as a body cooling modality. METHODS: Participants exercised on a motorized treadmill in hot conditions (ambient temperature 39.5°C [103.1°F], SD 3.1°C [37.58°F]; relative humidity 38.1% [SD 6.7%]) until they reached exercise-induced hyperthermia. After exercise, participants were cooled with either partial immersion by the tarp-assisted cooling method (water temperature 9.20°C [48.56°F], SD 2...
November 4, 2016: Annals of Emergency Medicine
https://www.readbyqxmd.com/read/27859725/effects-of-menthol-application-on-the-skin-during-prolonged-immersion-in-swimmers-and-controls
#16
P G Botonis, N D Geladas, S N Kounalakis, E D Cherouveim, M D Koskolou
We hypothesized that menthol application on the skin would enhance vasoconstriction of subjects immersed in cool water, which would reduce heat loss and rectal temperature (Tre) cooling rate. Furthermore, it was hypothesized that this effect would be greater in individuals acclimatized to immersion in 24 °C water, such as swimmers. Seven swimmers (SW) and seven physical education students (CON) cycled at 60% VO2 max until Tre attained 38 °C, and were then immediately immersed in stirred water maintained at 24 °C on two occasions: without (NM) and with (M; 4...
November 18, 2016: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/27857952/regional-brain-responses-in-humans-during-body-heating-and-cooling
#17
REVIEW
Michael J Farrell
Functional brain imaging of responses to thermal challenge in humans provides a viable method to implicate widespread neuroanatomical regions in the processes of thermoregulation. Thus far, functional neuroimaging techniques have been used infrequently in humans to investigate thermoregulation, although preliminary outcomes have been informative and certainly encourage further forays into this field of enquiry. At this juncture, sustained regional brain activations in response to prolonged changes in body temperature are yet to be definitively characterized, but it would appear that thermoregulatory regions are widely distributed throughout the hemispheres of the human brain...
April 2016: Temperature: Multidisciplinary Biomedical Journal
https://www.readbyqxmd.com/read/27852983/ultracold-neutral-plasmas
#18
M Lyon, S L Rolston
By photoionizing samples of laser-cooled atoms with laser light tuned just above the ionization limit, plasmas can be created with electron and ion temperatures below 10 K. These ultracold neutral plasmas have extended the temperature bounds of plasma physics by two orders of magnitude. Table-top experiments, using many of the tools from atomic physics, allow for the study of plasma phenomena in this new regime with independent control over the density and temperature of the plasma through the excitation process...
November 17, 2016: Reports on Progress in Physics
https://www.readbyqxmd.com/read/27849437/optimum-temperature-of-oxygen-for-transpulmonary-hypothermia-with-cooled-oxygen-inhalation-a-preliminary-study-in-a-rat-model
#19
Banu Karakus Yilmaz, Hatice Topcu, Yahya A Acar, Duygu Sultan Oran, Sule Ozsoy, Erdem Çevik, Aylin Hakligor, Orhan Çinar
Cooled oxygen inhalation was hypothesized as a novel hypothermia technique in a previous study. In the current study, we aimed to determine the optimal temperature of oxygen for this method. This is a prospective, randomized, controlled, examiner-blinded experimental study conducted with 45 healthy, adult, Wistar Hannover male rats. Rats were randomly divided into five groups; group 1: +4°C intubated group (n = 7), group 2: +4°C nonintubated group (n = 9), group 3: +8°C intubated group (n = 9), group 4: +8°C nonintubated group (n = 9), and group 5: control group (n = 9)...
November 16, 2016: Therapeutic Hypothermia and Temperature Management
https://www.readbyqxmd.com/read/27845372/ecotypic-differentiation-matters-for-latitudinal-variation-in-energy-metabolism-and-flight-performance-in-a-butterfly-under-climate-change
#20
Hans Van Dyck, Marie-Jeanne Holveck
Life histories of organisms may vary with latitude as they experience different thermal constraints and challenges. This geographic, intraspecific variation could be of significance for range dynamics under climate change beyond edge-core comparisons. In this study, we did a reciprocal transplant experiment between the temperature-regimes of two latitudes with an ectotherm insect, examining the effects on energy metabolism and flight performance. Pararge aegeria expanded its ecological niche from cool woodland (ancestral) to warmer habitat in agricultural landscape (novel ecotype)...
November 15, 2016: Scientific Reports
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