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https://www.readbyqxmd.com/read/28339759/performance-and-anticoccidial-effects-of-nicarbazin-fed-broilers-reared-at-standard-or-reduced-environmental-temperatures
#1
M J da Costa, K W Bafundo, G M Pesti, E A Kimminau, H M Cervantes
A series of 4 floor pen studies was conducted to evaluate the effects of environmental temperature modification on nicarbazin (NIC) responses in broiler chickens raised to 28 d of age. Birds were reared at either standard temperatures (recommended by the primary breeder for ages zero to 28 d) or at 3°C below this level. From placement to 28 d, birds were provided feeds containing zero, 100, or 125 ppm NIC, comprising a 2 × 3 factorial arrangement in each test. Two of the trials were conducted in the presence of an imposed coccidial challenge and 2 were conducted in healthy animals...
February 23, 2017: Poultry Science
https://www.readbyqxmd.com/read/28339711/interactions-of-full-fat-canola-seed-oat-hulls-as-an-insoluble-fiber-source-and-pellet-temperature-for-nutrient-utilization-and-growth-performance-of-broiler-chickens
#2
R Barekatain, R A Swick, M Toghyani, C T de Koning
The effectiveness of the addition of oat hulls (OH) as an insoluble fiber for improving nutrient digestibility and performance of birds fed diets containing full-fat canola seed (CS) was studied. A 2 × 2 × 2 factorial arrangement of treatments was used to assess the main effects of canola source (CS vs canola meal plus oil as control), OH (0 or 3%), pellet temperature (75 and 90°C) and their interactions. A total of 576 male day-old Ross 308 chickens were assigned to 8 experimental treatments, each replicated 6 times (12 birds per replicate)...
February 22, 2017: Poultry Science
https://www.readbyqxmd.com/read/28339556/influence-of-temperature-and-growth-selection-on-turkey-pectoralis-major-muscle-satellite-cell-adipogenic-gene-expression-and-lipid-accumulation
#3
D L Clark, G M Strasburg, K M Reed, S G Velleman
Immature poults have an inefficient thermoregulatory system, and therefore extreme ambient temperatures can impact their internal body temperature. Satellite cells, the only posthatch myonuclei source, are multipotential stem cells and sensitive to temperature. Selection for faster-growing, high-yielding birds has altered satellite-cell properties. The objective of the current study was to determine how temperature affects adipogenic properties of satellite cells isolated from the pectoralis major ( ) muscle of Randombred Control line ( ) and F line turkeys selected only for increased 16-wk body weight from the RBC2 line...
October 6, 2016: Poultry Science
https://www.readbyqxmd.com/read/28338078/the-transmembrane-serine-protease-hat-like-4-is-important-for-epidermal-barrier-function-to-prevent-body-fluid-loss
#4
Zhiwei Zhang, Yae Hu, Ruhong Yan, Liang Dong, Yizhi Jiang, Zhichao Zhou, Meng Liu, Tiantian Zhou, Ningzheng Dong, Qingyu Wu
Membrane-bound proteases are essential for epidermal integrity. Human airway trypsin-like protease 4 (HAT-L4) is a type II transmembrane serine protease. Currently, its biochemical property, cellular distribution and physiological function remain unknown. Here we examined HAT-L4 expression and function in vitro and in vivo. In Western analysis, HAT-L4 expressed in transfected CHO cells appeared as a 48-kDa protein. Flow cytometry confirmed HAT-L4 expression on the cell surface with the expected membrane topology...
March 24, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28337936/females-exposed-to-24%C3%A2-h-of-sleep-deprivation-do-not-experience-greater-physiological-strain-but-do-perceive-heat-illness-symptoms-more-severely-during-exercise-heat-stress
#5
Rebecca Relf, Ashley Willmott, Jessica Mee, Oliver Gibson, Arron Saunders, Mark Hayes, Neil Maxwell
There is limited and inconclusive evidence surrounding the physiological and perceptual responses to heat stress while sleep deprived, especially for females. This study aimed to quantify the effect of 24 h sleep deprivation on physiological strain and perceptual markers of heat-related illness in females. Nine females completed two 30-min heat stress tests (HST) separated by 48 h in 39°C, 41% relative humidity at a metabolic heat production of 10 W · kg(-1). The non-sleep deprived HST was followed by the sleep deprivation (SDHST) trial for all participants during the follicular phase of the menstrual cycle...
March 24, 2017: Journal of Sports Sciences
https://www.readbyqxmd.com/read/28337635/measurement-of-bovine-body-and-scrotal-temperature-using-implanted-temperature-sensitive-radio-transmitters-data-loggers-and-infrared-thermography
#6
A L Wallage, J B Gaughan, A T Lisle, L Beard, C W Collins, S D Johnston
Synchronous and continuous measurement of body (BT) and scrotal temperature (ST) without adverse welfare or behavioural interference is essential for understanding thermoregulation of the bull testis. This study compared three technologies for their efficacy for long-term measurement of the relationship between BT and ST by means of (1) temperature sensitive radio transmitters (RT), (2) data loggers (DL) and (3) infrared imaging (IRI). After an initial pilot study on two bulls to establish a surgical protocol, RTs and DLs were implanted into the flank and mid-scrotum of six Wagyu bulls for between 29 and 49 days...
March 23, 2017: International Journal of Biometeorology
https://www.readbyqxmd.com/read/28337283/intracoronary-hypothermia-for-acute-myocardial-infarction-in-the-isolated-beating-pig-heart
#7
Luuk C Otterspoor, Lokien X van Nunen, Tilaï T Rosalina, Marcel Van't Veer, Sjoerd Van Tuijl, Marco Stijnen, Marcel Cm Rutten, Frans N van de Vosse, Nico Hj Pijls
Hypothermia may attenuate reperfusion injury and thereby improve acute myocardial infarction therapy. Systemic cooling trials failed to reduce infarct size, perhaps because the target temperature was not reached fast enough. The use of selective intracoronary hypothermia combined with intracoronary temperature monitoring allows for titrating to target temperature and optimizing the cooling rate. We aimed to the test the feasibility of intracoronary cooling for controlled, selective myocardial hypothermia in an isolated beating pig heart...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/28336970/a-steep-slope-transistor-combining-phase-change-and-band-to-band-tunneling-to-achieve-a-sub-unity-body-factor
#8
Wolfgang A Vitale, Emanuele A Casu, Arnab Biswas, Teodor Rosca, Cem Alper, Anna Krammer, Gia V Luong, Qing-T Zhao, Siegfried Mantl, Andreas Schüler, A M Ionescu
Steep-slope transistors allow to scale down the supply voltage and the energy per computed bit of information as compared to conventional field-effect transistors (FETs), due to their sub-60 mV/decade subthreshold swing at room temperature. Currently pursued approaches to achieve such a subthermionic subthreshold swing consist in alternative carrier injection mechanisms, like quantum mechanical band-to-band tunneling (BTBT) in Tunnel FETs or abrupt phase-change in metal-insulator transition (MIT) devices...
March 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28336931/observation-of-biexcitonic-emission-at-extremely-low-power-density-in-tungsten-disulfide-atomic-layers-grown-on-hexagonal-boron-nitride
#9
Mitsuhiro Okada, Yuhei Miyauchi, Kazunari Matsuda, Takashi Taniguchi, Kenji Watanabe, Hisanori Shinohara, Ryo Kitaura
Monolayer transition metal dichalcogenides (TMDCs) including WS2, MoS2, WSe2 and WS2, are two-dimensional semiconductors with direct bandgap, providing an excellent field for exploration of many-body effects in 2-dimensions (2D) through optical measurements. To fully explore the physics of TMDCs, the prerequisite is preparation of high-quality samples to observe their intrinsic properties. For this purpose, we have focused on high-quality samples, WS2 grown by chemical vapor deposition method with hexagonal boron nitride as substrates...
March 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28336757/development-of-a-bedside-scoring-system-for-predicting-a-first-recurrence-of-clostridium-difficile-associated-diarrhea
#10
Velliyur Viswesh, Ana L Hincapie, Marie Yu, Linda Khatchatourian, Michael A Nowak
PURPOSE: A scoring system for identifying patients at high or low risk for recurrent Clostridium difficile-associated diarrhea (CDAD) is described. METHODS: A retrospective cohort study was performed using data on adults with CDAD admitted to a 3-hospital system from 2009 to 2014. The primary endpoint was the rate of recurrent CDAD within 60 days of clinical cure of CDAD. Risk factors for CDAD recurrence were identified, and a risk prediction tool was developed using multivariate logistic regression...
April 1, 2017: American Journal of Health-system Pharmacy: AJHP
https://www.readbyqxmd.com/read/28336476/associations-of-water-balance-and-thermal-sensitivity-of-toads-with-macroclimatic-characteristics-of-geographical-distribution
#11
Braz Titon, Fernando Ribeiro Gomes
Interspecific variation in patterns of geographical distribution of phylogenetically related species of amphibians might be related to physiological adaptation to different climatic conditions. In this way, a comparative study of resistance to evaporative water loss, rehydration rates and sensitivity of locomotor performance to variations on hydration level and temperature was performed for five species of Bufonidae toads (Rhinella granulosa, R. jimi, R. ornata, R. schneideri and R. icterica) inhabiting different Brazilian biomes...
March 20, 2017: Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology
https://www.readbyqxmd.com/read/28336426/sar-simulations-safety
#12
Thomas M Fiedler, Mark E Ladd, Andreas K Bitz
At ultra-high fields, the assessment of radiofrequency (RF) safety presents several new challenges compared to low-field systems. Multi-channel RF transmit coils in combination with parallel transmit techniques produce time-dependent and spatially varying power loss densities in the tissue. Further, in ultra-high-field systems, localized field effects can be more pronounced due to a transition from the quasistationary to the electromagnetic field regime. Consequently, local information on the RF field is required for reliable RF safety assessment as well as for monitoring of RF exposure during MR examinations...
March 20, 2017: NeuroImage
https://www.readbyqxmd.com/read/28335384/localization-and-tracking-of-implantable-biomedical-sensors
#13
REVIEW
Ilknur Umay, Barış Fidan, Billur Barshan
Implantable sensor systems are effective tools for biomedical diagnosis, visualization and treatment of various health conditions, attracting the interest of researchers, as well as healthcare practitioners. These systems efficiently and conveniently provide essential data of the body part being diagnosed, such as gastrointestinal (temperature, pH, pressure) parameter values, blood glucose and pressure levels and electrocardiogram data. Such data are first transmitted from the implantable sensor units to an external receiver node or network and then to a central monitoring and control (computer) unit for analysis, diagnosis and/or treatment...
March 13, 2017: Sensors
https://www.readbyqxmd.com/read/28335092/effect-of-energy-density-and-virginiamycin-supplementation-in-diets-on-growth-performance-and-digestive-function-of-finishing-steers
#14
Juan Diego Navarrete, Martin F Montano, Constantino Raymundo, Jaime Salinas-Chavira, Noemi Torrentera, Richard Avery Zinn
Objective: In the study was determined the influence of virginiamycin supplementation on growth-performance and characteristics of digestion of cattle, decreasing dietary NEm from 2.22 to 2.10 Mcal/kg. Methods: Eighty crossbred beef steers (298.2 ± 6.3 kg) were used in a 152-d performance evaluation consisting of a 28-d adaptation period followed by a 124-d growing-finishing period. During the 124-d period steers were fed either a lesser energy dense (LED, 2.10 Mcal/kg NEm) or higher energy dense (HED, 2...
March 21, 2017: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/28334688/preparation-of-poly-n-isopropylacrylamide-block-acrylic-acid-encapsulated-proteinaceous-microbubbles-for-delivery-of-doxorubicin
#15
Xiaochen Ma, Qingxia Liu
Inspired by theranostic technologies, we electrostatically loaded proteinaceous microbubbles (MBs) with a model drug, doxorubicin (Dox) to couple their utilizations in diagnostic imaging with drug loading. A temperature-sensitive polymer, poly(N-isopropylacrylamide-block-acrylic acid) (poly(NIPAM-b-AAc)) was used to encapsulate the Dox-loaded MBs to prevent premature release and to control the Dox release thermally. An LCST of 39°C, slightly higher than normal body temperatures, enables the release of Dox through a conformational change of the polymer shell upon moderate heating...
March 12, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/28332019/comparative-tissue-transcriptomics-highlights-dynamic-differences-among-tissues-but-conserved-metabolic-transcript-prioritization-in-preparation-for-arousal-from-torpor
#16
Lori K Bogren, Katharine R Grabek, Gregory S Barsh, Sandra L Martin
During the hibernation season, 13-lined ground squirrels spend days to weeks in torpor with body temperatures near freezing then spontaneously rewarm. The molecular drivers of the drastic physiological changes that orchestrate and permit torpor are not well understood. Although transcription effectively ceases at the low body temperatures of torpor, previous work has demonstrated that some transcripts are protected from bulk degradation in brown adipose tissue (BAT), consistent with the importance of their protein products for metabolic heat generation during arousal from torpor...
March 23, 2017: Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology
https://www.readbyqxmd.com/read/28332018/seasonal-loss-and-resumption-of-circadian-rhythms-in-hibernating-arctic-ground-squirrels
#17
Cory T Williams, Maya Radonich, Brian M Barnes, C Loren Buck
Circadian clocks are near universal among organisms and play a key role in coordinating physiological and metabolic functions to anticipate or coincide with predictable daily changes in the physical and social environment. However, whether circadian rhythms persist and are functionally important during hibernation in all mammals is currently unclear. We examined whether circadian rhythms of body temperature (T b) persist during multi-day, steady-state torpor and investigated the association between timing of animal emergence, exposure to light, and resumption of activity and T b rhythms in free-living and captive male arctic ground squirrels...
March 22, 2017: Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology
https://www.readbyqxmd.com/read/28331606/responses-of-coral-reef-fishes-to-past-climate-changes-are-related-to-life-history-traits
#18
Eduardo Ottimofiore, Camille Albouy, Fabien Leprieur, Patrice Descombes, Michel Kulbicki, David Mouillot, Valeriano Parravicini, Loïc Pellissier
Coral reefs and their associated fauna are largely impacted by ongoing climate change. Unravelling species responses to past climatic variations might provide clues on the consequence of ongoing changes. Here, we tested the relationship between changes in sea surface temperature and sea levels during the Quaternary and present-day distributions of coral reef fish species. We investigated whether species-specific responses are associated with life-history traits. We collected a database of coral reef fish distribution together with life-history traits for the Indo-Pacific Ocean...
March 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28331598/differential-expression-patterns-of-two-delta-9-acyl-coa-desaturases-in-thitarodes-pui-lepidoptera-hepialidae-during-different-seasons-and-cold-exposure
#19
Qiang Min, Shiyu Cheng, Jianfei Xi, Tianrong Xin, Bin Xia, Zhiwen Zou
Thitarodes pui larvae have a limited distribution in the Tibetan Plateau and are the host of a parasitic fungus, Ophiocordyceps sinensis. Low temperature is a main environmental stress. However, understanding of T. pui cold adaptation mechanisms is insufficient. Delta-9-acyl-CoA desaturase (D9D) is closely correlated with cold adaptation for many organisms. To further understand the cold adaptation processes in T. pui larvae, two D9Ds, TpdesatA and TpdesatB were sequenced, and expression patterns were investigated during different seasons and cold exposure (under 0°C) in the laboratory...
March 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28331086/nectin-4-interactions-govern-measles-virus-virulence-in-a-new-model-of-pathogenesis-squirrel-monkeys-simia-sciureus
#20
Sébastien Delpeut, Bevan Sawatsky, Xiao-Xiang Wong, Marie Frenzke, Roberto Cattaneo, Veronika von Messling
In addition to humans, only certain non-human primates are naturally susceptible to measles virus (MeV) infection. Disease severity is species-dependent, ranging from mild to moderate for macaques to severe and even lethal for certain New World monkey species. To investigate if squirrel monkeys (Simia sciureus), which are reported to develop a course of disease similar to humans, may be better suited than macaques for the identification of virulence determinants or the evaluation of therapeutics, we infected them with a green fluorescent protein-expressing MeV...
March 22, 2017: Journal of Virology
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