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https://www.readbyqxmd.com/read/29771372/tracking-aedes-aegypti-diptera-culicidae-larval-behavior-across-development-effects-of-temperature-and-nutrients-on-individuals-foraging-behavior
#1
Michael H Reiskind, M Shawn Janairo
Immature mosquitoes alter their foraging behavior in response to variation in nutrients, predators, and temperature, with consequences on the adult stage where pathogens are transmitted. These patterns of behavior have not been described with respect to both developmental stage and environmental variation, nor has behavior been examined within an individual across instars. We hypothesized that individual larvae have distinct behavioral syndromes, and predict that the rank of foraging activity in the third instar will be correlated with foraging activity in the fourth instar for an individual across all conditions...
May 15, 2018: Journal of Medical Entomology
https://www.readbyqxmd.com/read/29769834/continuous-knee-cooling-affects-functional-hop-performance-a-randomized-controlled-trial
#2
Bruno Tassignon, Ben Serrien, Kevin De Pauw, Jean-Pierre Baeyens, Romain Meeusen
Cryotherapy is widely used in sports and rehabilitation to aid recovery and injury management. The purpose was to examine if a low temperature computer controlled continuous knee cooling protocol (10°C) for one hour and a moderate continuous knee cooling protocol (18°C) for one hour affected neuromuscular activity and functional performance tests. We used a randomized controlled study design. Twenty healthy male subjects (age = 24 ± 3 years) were included and randomized into 2 groups (10°C and 18°C). On day one, participants performed a maximal voluntary contraction of the quadriceps (MVC), single leg hop for distance (SLHD), and crossover hop for time (COHT) with both legs before and after cooling of their right leg...
June 2018: Journal of Sports Science & Medicine
https://www.readbyqxmd.com/read/29768931/how-intersectoral-health-promotion-changes-professional-practices-a-case-study-from-denmark
#3
Mads Christensen, Viola Burau, Loni Ledderer
Intersectoral health promotion (IHP) has pushed health professions to engage in new tasks and interprofessional ways of working. We studied how care assistants from a nursing home and school teachers implemented a cookery project targeted at children ("Cool Beans") as an example of an IHP project in Denmark. Our aim was to examine the impact of the IHP project on the practices of the professions involved. We used a qualitative case study to investigate joint care and teaching situations with the two professions and their users...
May 1, 2018: Health Promotion Practice
https://www.readbyqxmd.com/read/29768200/sensory-afferents-use-different-coding-strategies-for-heat-and-cold
#4
Feng Wang, Erik Bélanger, Sylvain L Côté, Patrick Desrosiers, Steven A Prescott, Daniel C Côté, Yves De Koninck
Primary afferents transduce environmental stimuli into electrical activity that is transmitted centrally to be decoded into corresponding sensations. However, it remains unknown how afferent populations encode different somatosensory inputs. To address this, we performed two-photon Ca2+ imaging from thousands of dorsal root ganglion (DRG) neurons in anesthetized mice while applying mechanical and thermal stimuli to hind paws. We found that approximately half of all neurons are polymodal and that heat and cold are encoded very differently...
May 15, 2018: Cell Reports
https://www.readbyqxmd.com/read/29766666/light-at-night-disrupts-nocturnal-rest-and-elevates-glucocorticoids-at-cool-color-temperatures
#5
Valentina J Alaasam, Richard Duncan, Stefania Casagrande, Scott Davies, Abhijaat Sidher, Brett Seymoure, Yantao Shen, Yong Zhang, Jenny Q Ouyang
Nighttime light pollution is quickly becoming a pervasive, global concern. Since the invention and proliferation of light-emitting diodes (LED), it has become common for consumers to select from a range of color temperatures of light with varying spectra. Yet, the biological impacts of these different spectra on organisms remain unclear. We tested if nighttime illumination of LEDs, at two commercially available color temperatures (3000 and 5000 K) and at ecologically relevant illumination levels affected body condition, food intake, locomotor activity, and glucocorticoid levels in zebra finches (Taeniopygia guttata)...
May 15, 2018: Journal of Experimental Zoology. Part A, Ecological and Integrative Physiology
https://www.readbyqxmd.com/read/29765656/the-rise-and-fall-of-an-ancient-ad%C3%A3-lie-penguin-supercolony-at-cape-adare-antarctica
#6
Steven D Emslie, Ashley McKenzie, William P Patterson
We report new discoveries and radiocarbon dates on active and abandoned Adélie penguin ( Pygoscelis adeliae ) colonies at Cape Adare, Antarctica. This colony, first established at approximately 2000 BP (calendar years before present, i.e. 1950), is currently the largest for this species with approximately 338 000 breeding pairs, most located on low-lying Ridley Beach. We hypothesize that this colony first formed after fast ice began blocking open-water access by breeding penguins to the Scott Coast in the southern Ross Sea during a cooling period also at approximately 2000 BP...
April 2018: Royal Society Open Science
https://www.readbyqxmd.com/read/29764556/-extra-longtime-continuous-chest-compression-to-rescue-cardiopulmonary-arrest-a-case-report-and-the-literature-review
#7
Yan Zhang, Tianxue Yue, Kexin Sun, Jiang Wang, Ruiwu Zhu
The new cardiopulmonary resuscitation (CPR) guideline emphasize the importance of chest compression, which was considered as the first step to CPR. The duration for CPR is usually limited to 30 minutes. With the development of new technology and evidence-based medicine, the success of extra longtime CPR has become possible, which is of great significance to some patients with cardiac arrest (CA), but the time limit has not been determined. On February 23rd in 2016, a 76-year-old female patient with respiratory and cardiac arrest who was on the third day after transurethral resection of bladder tumor (TUR-BT) was admitted to the intensive care unit of the General Hospital of Fushun Mining Bureau...
May 2018: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
https://www.readbyqxmd.com/read/29756878/multiscale-relaxation-dynamics-in-ultrathin-metallic-glass-forming-films
#8
Q L Bi, Y J Lü, W H Wang
The density layering phenomenon originating from a free surface gives rise to the layerlike dynamics and stress heterogeneity in ultrathin Cu-Zr glassy films, which facilitates the occurrence of multistep relaxations in the timescale of computer simulations. Taking advantage of this condition, we trace the relaxation decoupling and evolution with temperature simply via the intermediate scattering function. We show that the β relaxation hierarchically follows fast and slow modes in films, and there is a β-relaxation transition as the film is cooled close to the glass transition...
April 13, 2018: Physical Review Letters
https://www.readbyqxmd.com/read/29755363/an-evidence-based-approach-for-choosing-post-exercise-recovery-techniques-to-reduce-markers-of-muscle-damage-soreness-fatigue-and-inflammation-a-systematic-review-with-meta-analysis
#9
Olivier Dupuy, Wafa Douzi, Dimitri Theurot, Laurent Bosquet, Benoit Dugué
Introduction: The aim of the present work was to perform a meta-analysis evaluating the impact of recovery techniques on delayed onset muscle soreness (DOMS), perceived fatigue, muscle damage, and inflammatory markers after physical exercise. Method: Three databases including PubMed, Embase , and Web-of-Science were searched using the following terms: ("recovery" or "active recovery" or "cooling" or "massage" or "compression garment" or "electrostimulation" or "stretching" or "immersion" or "cryotherapy") and ("DOMS" or "perceived fatigue" or "CK" or "CRP" or "IL-6") and ("after exercise" or "post-exercise") for randomized controlled trials, crossover trials, and repeated-measure studies...
2018: Frontiers in Physiology
https://www.readbyqxmd.com/read/29754932/mild-hypothermia-inhibits-the-notch-3-and-notch-4-activation-and-seizure-after-stroke-in-the-rat-model
#10
Guo-Shuai Yang, Xiao-Yan Zhou, Xue-Fang An, Xuan-Jun Liu, Yan-Jun Zhang, Dan Yu
Ischemic brain injury is an important cause for seizure. Mild hypothermia of the brain or the whole body is an effective way to remit the post-stroke seizure. Our previous study revealed an implication of Notch 1 and 2 in the post-stroke seizure. This study further investigated the involvement of Notch 3 and 4 in post-stroke seizure and the effect of mild hypothermia on these two factors. A global cerebral ischemia (GCI) model was conducted in Sprague Dawley rats. Seizure activity was evaluated by the frequency of seizure attacks, seizure severity scores, and seizure discharges...
May 4, 2018: Pathology, Research and Practice
https://www.readbyqxmd.com/read/29747585/waveband-specific-transcriptional-control-of-select-genetic-pathways-in-vertebrate-skin-xiphophorus-maculatus
#11
Ronald B Walter, Mikki Boswell, Jordan Chang, William T Boswell, Yuan Lu, Kaela Navarro, Sean M Walter, Dylan J Walter, Raquel Salinas, Markita Savage
BACKGROUND: Evolution occurred exclusively under the full spectrum of sunlight. Conscription of narrow regions of the solar spectrum by specific photoreceptors suggests a common strategy for regulation of genetic pathways. Fluorescent light (FL) does not possess the complexity of the solar spectrum and has only been in service for about 60 years. If vertebrates evolved specific genetic responses regulated by light wavelengths representing the entire solar spectrum, there may be genetic consequences to reducing the spectral complexity of light...
May 10, 2018: BMC Genomics
https://www.readbyqxmd.com/read/29746908/the-behavioral-energetics-of-new-zealand-s-bats-daily-torpor-and-hibernation-a-continuum
#12
Brian K McNab, Colin O'Donnell
We examine the impact of behavior on the short-term energy expenditures of the only terrestrial mammals endemic to New Zealand, two bats, the long-tailed (Chalinolobus tuberculatus, family Vespertilionidae), and the lesser short-tailed (Mystacina tuberculata, family Mystacinidae). Vespertilionidae has a world-wide distribution. Mystacinidae is restricted to New Zealand, although related to five neotropical families and one in Madagascar reflecting a shared Gondwanan origin of their Noctilionoidea superfamily...
May 7, 2018: Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology
https://www.readbyqxmd.com/read/29741235/face-cooling-exposes-cardiac-parasympathetic-and-sympathetic-dysfunction-in-recently-concussed-college-athletes
#13
Blair D Johnson, Morgan C O'Leary, Muhamed McBryde, James R Sackett, Zachary J Schlader, John J Leddy
We tested the hypothesis that concussed college athletes (CA) have attenuated parasympathetic and sympathetic responses to face cooling (FC). Eleven symptomatic CA (age: 20 ± 2 years, 5 women) who were within 10 days of concussion diagnosis and 10 healthy controls (HC; age: 24 ± 4 years, 5 women) participated. During FC, a plastic bag filled with ice water (~0°C) was placed on the forehead, eyes, and cheeks for 3 min. Heart rate (ECG) and blood pressure (photoplethysmography) were averaged at baseline and every 60 sec during FC...
May 2018: Physiological Reports
https://www.readbyqxmd.com/read/29739833/central-nervous-shutdown-underlies-acute-cold-tolerance-in-tropical-and-temperate-drosophila-species
#14
Mads Kuhlmann Andersen, Nikolaj Johannes Skole Jensen, R Meldrum Robertson, Johannes Overgaard
When cooled, insects first lose their ability to perform coordinated movements (CTmin ) after which they enter chill coma (chill coma onset, CCO). Both these behaviours are popular measures of cold tolerance that correlate remarkably well with species distribution. To identify and understand the neuromuscular impairment that causes CTmin and CCO we used inter- and intraspecific model systems of Drosophila species that have varying cold tolerance as a consequence of adaptation or cold acclimation. Our results demonstrate that CTmin and CCO correlate strongly with a spreading depolarization (SD) within the central nervous system (CNS)...
May 8, 2018: Journal of Experimental Biology
https://www.readbyqxmd.com/read/29739454/l-menthol-attenuates-the-magnitude-of-cold-induced-vasodilation-on-the-extremities-of-young-females
#15
Siyeon Kim, Joo-Young Lee
BACKGROUND: Menthol chemically triggers cold-sensitive receptors in the skin without conductive skin cooling. We investigated the effects of menthol-induced activation of cutaneous cold receptors on the cold-induced vasodilation (CIVD) of the finger. We hypothesized that the menthol application would attenuate typical CIVD responses. METHODS: 1.5% L-menthol was fully applied over the left hand and forearm, and then, the middle finger of the left hand was immersed into 4 °C water for 30 min...
May 9, 2018: Journal of Physiological Anthropology
https://www.readbyqxmd.com/read/29739320/mobilization-of-retrotransposons-as-a-cause-of-chromosomal-diversification-and-rapid-speciation-the-case-for-the-antarctic-teleost-genus-trematomus
#16
J Auvinet, P Graça, L Belkadi, L Petit, E Bonnivard, A Dettaï, W H Detrich, C Ozouf-Costaz, D Higuet
BACKGROUND: The importance of transposable elements (TEs) in the genomic remodeling and chromosomal rearrangements that accompany lineage diversification in vertebrates remains the subject of debate. The major impediment to understanding the roles of TEs in genome evolution is the lack of comparative and integrative analyses on complete taxonomic groups. To help overcome this problem, we have focused on the Antarctic teleost genus Trematomus (Notothenioidei: Nototheniidae), as they experienced rapid speciation accompanied by dramatic chromosomal diversity...
May 9, 2018: BMC Genomics
https://www.readbyqxmd.com/read/29736138/a-rebco-persistent-current-switch-immersed-in-solid-nitrogen-operating-at-temperatures-near-10-k
#17
Philip C Michael, Jiho Lee, John Voccio, Juan Bascuñán, Seungyong Hahn, Yukikazu Iwasa
We present design and test results for a thermally-activated persistent-current switch (PCS) applied to a double pancake (DP) coil (151 mm ID, 172 mm OD), wound, using the no-insulation (NI) technique, from a 120-m long, 76-μm thick, 6-mm wide REBCO tape. For the experiments reported in this paper, the NI DP assembly was immersed in a volume of solid nitrogen (SN2), cooled to a base temperature of 10 K by conduction to a two-stage cryocooler, and energized at up to 630 A. The DP assembly operated in quasi-persistent mode, with the conductor tails soldered together to form a close-out joint with resistance below 6 nΩ...
April 2018: IEEE Transactions on Applied Superconductivity: a Publication of the IEEE Superconductivity Committee
https://www.readbyqxmd.com/read/29734360/physiological-responses-to-acute-cold-exposure-in-young-lean-men
#18
Francisco M Acosta, Borja Martinez-Tellez, Guillermo Sanchez-Delgado, Juan M A Alcantara, Pedro Acosta-Manzano, Antonio J Morales-Artacho, Jonatan R Ruiz
The aim of this study was to comprehensively describe the physiological responses to an acute bout of mild cold in young lean men (n = 11, age: 23 ± 2 years, body mass index: 23.1 ± 1.2 kg/m2) to better understand the underlying mechanisms of non-shivering thermogenesis and how it is regulated. Resting energy expenditure, substrate metabolism, skin temperature, thermal comfort perception, superficial muscle activity, hemodynamics of the forearm and abdominal regions, and heart rate variability were measured under warm conditions (22...
2018: PloS One
https://www.readbyqxmd.com/read/29732456/a-quality-initiative-for-optimal-therapeutic-hypothermia-during-transport-for-neonates-with-neonatal-encephalopathy
#19
Stephanie L Bourque, Stephanie A Meier, Claire Palmer, Diane L Melara, Theresa R Grover, Cassidy A Delaney
Introduction: Neuroprotection with therapeutic hypothermia (TH) is standard of care for neonatal encephalopathy (NE) and decreases death and neurodevelopmental disability. TH initiated shortly after birth insult results in greater neuroprotection compared with delayed initiation. Methods: Quality improvement methodology was used to improve temperature control during transport to a level IV neonatal intensive care unit. We included neonates with NE transported to a single institution for TH from 2010 to 2016...
March 2018: Pediatric quality & safety
https://www.readbyqxmd.com/read/29725138/p-type-doping-efficiency-in-cdte-influence-of-second-phase-formation
#20
Jedidiah J McCoy, Santosh K Swain, John R Sieber, David R Diercks, Brian P Gorman, Kelvin G Lynn
Cadmium telluride (CdTe) high purity, bulk, crystal ingots doped with phosphorus were grown by the vertical Bridgman melt growth technique to understand and improve dopant solubility and activation. Large net carrier densities have been reproducibly obtained from as-grown ingots, indicating successful incorporation of dopants into the lattice. However, net carrier density values are orders of magnitude lower than the solubility of P in CdTe as reported in literature, 1018 /cm3 to 1019 /cm3 [J. H. Greenberg, J...
April 2018: Journal of Applied Physics
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