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https://www.readbyqxmd.com/read/28211166/clinical-relevance-of-pre-ovulatory-follicular-temperature-in-heat-stressed-lactating-dairy-cows
#1
F López-Gatius, Rhf Hunter
Temperature gradients in female reproductive tissues seem to influence the success of key processes such as ovulation and fertilization. The objective of this study was to investigate whether pre-ovulatory follicles are cooler than neighbouring uterine tissue and deep rectal temperatures in lactating dairy cows under heat stress conditions. Temperatures within the pre-ovulatory follicle, on the uterine adjacent surface and 20 cm deep within rectum, were measured using fine thermistor probes within 45 min after sunrise (dawn)...
February 17, 2017: Reproduction in Domestic Animals, Zuchthygiene
https://www.readbyqxmd.com/read/28177746/preliminary-safety-analysis-of-high-intensity-interval-training-hiit-in-persons-with-chronic-stroke
#2
Daniel L Carl, Pierce Boyne, Bradley Rockwell, Myron Gerson, Jane Khoury, Brett Kissela, Kari Dunning
The purpose of this study was to assess safety via electrocardiographic (ECG), blood pressure (BP), heart rate (HR), and orthopedic responses to 3 different high-intensity interval training (HIIT) protocols in persons with stroke. Eighteen participants (10 male; 61.9 + 8.3 years of age; 5.8 + 4.2 years poststroke) completed a symptom-limited graded exercise test (GXT) with ECG monitoring to screen for eligibility and determine HR peak. The 3 HIIT protocols involved repeated 30 s bursts of treadmill walking at maximum speed alternated with rest periods of 30 s (P30), 1 min (P60), or 2 min (P120)...
November 21, 2016: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/28169346/multiple-tropical-andean-glaciations-during-a-period-of-late-pliocene-warmth
#3
Nicholas J Roberts, René W Barendregt, John J Clague
The extent and behaviour of glaciers during the mid-Piacenzian warm period illustrate the sensitivity of the cryosphere to atmospheric CO2 concentrations above pre-industrial levels. Knowledge of glaciation during this period is restricted to globally or regionally averaged records from marine sediments and to sparse terrestrial glacial deposits in mid-to-high latitudes. Here we expand the Pliocene glacial record to the tropics by reporting recurrent large-scale glaciation in the Bolivian Andes based on stratigraphic and paleomagnetic analysis of a 95-m sequence of glacial sediments underlying the 2...
February 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28151781/acute-effects-of-eccentric-overload-on-concentric-front-squat-performance
#4
Cameron N Munger, David C Archer, Whitney D Leyva, Megan A Wong, Jared W Coburn, Pablo B Costa, Lee E Brown
Eccentric overload is used to enhance performance. The purpose of this study was to investigate the acute effects of eccentric overload on concentric front squat performance. Twenty resistance-trained males (age=23.80±1.82yrs, ht=176.95±5.21cm, mass=83.49±10.43kg, 1 Repetition Maximum [1RM] front squat=131.02±21.32kg) volunteered. A dynamic warm-up and warm-up sets of front squat were performed. Eccentric hooks were added to the barbell. They descended for 3 seconds, until eccentric hooks released, and performed the concentric phase as fast as possible...
January 30, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28146582/mechanical-alterations-associated-with-repeated-treadmill-sprinting-under-heat-stress
#5
Olivier Girard, Franck Brocherie, Jean-Benoit Morin, Sébastien Racinais, Grégoire P Millet, Julien D Périard
PURPOSE: Examine the mechanical alterations associated with repeated treadmill sprinting performed in HOT (38°C) and CON (25°C) conditions. METHODS: Eleven recreationally active males performed a 30-min warm-up followed by three sets of five 5-s sprints with 25-s recovery and 3-min between sets in each environment. Constant-velocity running for 1-min at 10 and 20 km.h-1 was also performed prior to and following sprinting. RESULTS: Mean skin (37...
2017: PloS One
https://www.readbyqxmd.com/read/28144740/hibernation-reduces-cellular-damage-caused-by-warm-hepatic-ischemia-reperfusion-in-ground-squirrels
#6
Jessica P Otis, Amanda C Pike, Jose R Torrealba, Hannah V Carey
During the hibernation season, livers from 13-lined ground squirrels (Ictidomys tridecemlineatus) are resistant to damage induced by ex vivo, cold ischemia-warm reperfusion (IR) compared with livers from summer squirrels or rats. Here, we tested the hypothesis that hibernation also reduces damage to ground squirrel livers in an in vivo, warm IR model, which more closely resembles complications associated with traumatic injury or surgical interventions. We also examined whether protection is mediated by two metabolites, inosine and biliverdin, that are elevated in ground squirrel liver during interbout arousals...
January 31, 2017: Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology
https://www.readbyqxmd.com/read/28139698/midcontinental-native-american-population-dynamics-and-late-holocene-hydroclimate-extremes
#7
Broxton W Bird, Jeremy J Wilson, William P Gilhooly Iii, Byron A Steinman, Lucas Stamps
Climate's influence on late Pre-Columbian (pre-1492 CE), maize-dependent Native American populations in the midcontinental United States (US) is poorly understood as regional paleoclimate records are sparse and/or provide conflicting perspectives. Here, we reconstruct regional changes in precipitation source and seasonality and local changes in warm-season duration and rainstorm events related to the Pacific North American pattern (PNA) using a 2100-year-long multi-proxy lake-sediment record from the midcontinental US...
January 31, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28120226/identification-and-future-description-of-warming-signatures-over-pakistan-with-special-emphasis-on-evolution-of-co2-levels-and-temperature-during-the-first-decade-of-the-twenty-first-century
#8
Khadija Haider, Muhammad Fahim Khokhar, Farrukh Chishtie, Waseem RazzaqKhan, Khalid Rehman Hakeem
Like other developing countries, Pakistan is also facing changes in temperature per decade and other climatic abnormalities like droughts and torrential rains. In order to assess and identify the extent of temperature change over Pakistan, the whole Pakistan was divided into five climatic zones ranging from very cold to hot and dry climates. Similarly, seasons in Pakistan are defined on the basis of monsoon variability as winter, pre-monsoon, monsoon, and post-monsoon. This study primarily focuses on the comparison of surface temperature observations from Pakistan Meteorological Department (PMD) network with PRECIS (Providing Regional Climates for Impacts Studies) model simulations...
January 24, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28119357/stimulus-dependent-effects-of-temperature-on-bitter-taste-in-humans
#9
Barry G Green, Kendra Andrew
This study investigated the effects of temperature on bitter taste in humans. The experiments were conducted within the context of current understanding of the neurobiology of bitter taste and recent evidence of stimulus-dependent effects of temperature on sweet taste. In the first experiment, the bitterness of caffeine and quinine sampled with the tongue tip was assessed at 4 different temperatures (10°, 21°, 30°, and 37 °C) following pre-exposure to the same solution or to water for 0, 3, or 10 s. The results showed that initial bitterness (0-s pre-exposure) followed an inverted U-shaped function of temperature for both stimuli, but the differences across temperature were statistically significant only for quinine...
February 2017: Chemical Senses
https://www.readbyqxmd.com/read/28113091/validation-of-test-portion-pooling-for-salmonella-spp-detection-in-foods
#10
David Tomás Fornés, Wendy McMahon, Julie Moulin, Adrianne Klijn
Pathogen monitoring programs play a crucial role in the verification of the effectiveness of implemented hygiene control measures. Sampling and testing procedures included in pathogen monitoring involve the analysis of multiple test portions where all samples must be negative for the presence of pathogens for a certain test portion size. Many food safety programs require increased testing due to the risks that a pathogen may be present. Analyzing more than one test portion could prove to be expensive and labor intensive...
January 16, 2017: International Journal of Food Microbiology
https://www.readbyqxmd.com/read/28112208/amplification-of-the-atlantic-multidecadal-oscillation-associated-with-the-onset-of-the-industrial-era-warming
#11
G W K Moore, J Halfar, H Majeed, W Adey, A Kronz
North Atlantic sea surface temperatures experience variability with a periodicity of 60-80 years that is known as the Atlantic Multidecadal Oscillation (AMO). It has a profound imprint on the global climate system that results in a number of high value societal impacts. However the industrial period, i.e. the middle of the 19th century onwards, contains only two full cycles of the AMO making it difficult to fully characterize this oscillation and its impact on the climate system. As a result, there is a clear need to identify paleoclimate records extending into the pre-industrial period that contain an expression of the AMO...
January 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28108975/3d-printed-soft-tissue-physical-models-of-renal-malignancies-for-individualized-surgical-simulation-a-feasibility-study
#12
Michael M Maddox, Allison Feibus, James Liu, Julie Wang, Raju Thomas, Jonathan L Silberstein
To construct patient-specific physical three-dimensional (3D) models of renal units with materials that approximates the properties of renal tissue to allow pre-operative and robotic training surgical simulation, 3D physical kidney models were created (3DSystems, Rock Hill, SC) using computerized tomography to segment structures of interest (parenchyma, vasculature, collection system, and tumor). Images were converted to a 3D surface mesh file for fabrication using a multi-jet 3D printer. A novel construction technique was employed to approximate normal renal tissue texture, printers selectively deposited photopolymer material forming the outer shell of the kidney, and subsequently, an agarose gel solution was injected into the inner cavity recreating the spongier renal parenchyma...
January 20, 2017: Journal of Robotic Surgery
https://www.readbyqxmd.com/read/28107643/does-psychological-well-being-change-following-treatment-an-exploratory-study-on-outpatients-with-eating-disorders
#13
Elena Tomba, Lucia Tecuta, Romana Schumann, Donatella Ballardini
Psychological well-being changes following cognitive-behavioral therapy-based treatment were investigated in outpatients with eating disorders (ED). While it is known that CBT reduces symptomatology in EDs, less is known about how changes in positive functioning may ensue. One-hundred and eighty five ED outpatients were analyzed for pre-treatment and post-treatment changes in psychological well-being (PWB) by last observation carried forward - Wilcoxon signed rank tests. Significant gains in all PWB dimensions were found, with moderate effect size correlations in environmental mastery (r=-...
January 7, 2017: Comprehensive Psychiatry
https://www.readbyqxmd.com/read/28088757/challenges-in-neonatal-transport-in-jamaica-a-resource-limited-setting
#14
Salome Henry, Helen Trotman
AIM: This study aimed to determine challenges associated with neonatal transport in Jamaica, a resource-limited setting. METHODS: This was a prospective descriptive study of neonates transported to the University Hospital of the West Indies (UHWI) over a 15 month period. Data on the clinical status of the neonates before, during and at the end of transport, as well as on accompanying staff and equipment, were collected. Neonatal demographics, reason for transfer and outcome at 48 h and at discharge were also collected...
January 14, 2017: Journal of Tropical Pediatrics
https://www.readbyqxmd.com/read/28087660/the-morphophysiological-dormancy-in-amborella-trichopoda-seeds-is-a-pleisiomorphic-trait-in-angiosperms
#15
Bruno Fogliani, Gildas Gâteblé, Matthieu Villegente, Isabelle Fabre, Nicolas Klein, Nicolas Anger, Carol C Baskin, Charlie P Scutt
BACKGROUND AND AIMS: Recent parsimony-based reconstructions suggest that seeds of early angiosperms had either morphophysiological or physiological dormancy, with the former considered as more probable. The aim of this study was to determine the class of seed dormancy present in Amborella trichopoda, the sole living representative of the most basal angiosperm lineage Amborellales, with a view to resolving fully the class of dormancy present at the base of the angiosperm clade. METHODS: Drupes of A...
January 13, 2017: Annals of Botany
https://www.readbyqxmd.com/read/28076360/consequences-of-global-warming-of-1-5-%C3%A2-c-and-2-%C3%A2-c-for-regional-temperature-and-precipitation-changes-in-the-contiguous-united-states
#16
Ambarish V Karmalkar, Raymond S Bradley
The differential warming of land and ocean leads to many continental regions in the Northern Hemisphere warming at rates higher than the global mean temperature. Adaptation and conservation efforts will, therefore, benefit from understanding regional consequences of limiting the global mean temperature increase to well below 2°C above pre-industrial levels, a limit agreed upon at the United Nations Climate Summit in Paris in December 2015. Here, we analyze climate model simulations from the Coupled Model Intercomparison Project Phase 5 (CMIP5) to determine the timing and magnitude of regional temperature and precipitation changes across the contiguous United States (US) for global warming of 1...
2017: PloS One
https://www.readbyqxmd.com/read/28056406/the-impact-of-maternal-factors-on-the-association-between-temperature-and-preterm-delivery
#17
Rupa Basu, Hong Chen, De-Kun Li, Lyndsay A Avalos
BACKGROUND: Few studies have examined maternal modifiers of temperature and adverse birth outcomes because of lack of data. We assessed the relationship between apparent temperature, preterm delivery (PTD) and maternal demographics, medical and mental health conditions, and behaviors. METHODS: A time-stratified case-crossover analysis was conducted using 14,466 women who had a PTD (20 to less than 37 gestational weeks) from 1995 to 2009 using medical records from a large health maintenance organization in Northern California...
January 2, 2017: Environmental Research
https://www.readbyqxmd.com/read/27999719/immediate-effects-of-deep-trunk-muscle-training-on-swimming-start-performance
#18
Satoshi Iizuka, Atsushi Imai, Keisuke Koizumi, Keisuke Okuno, Koji Kaneoka
BACKGROUND: In recent years, deep trunk muscle training has been adopted in various sports, including swimming. This is performed both in everyday training and as part of the warm-up routine before competitive races. It is suggested that trunk stabilization exercises are effective in preventing injury, and aid in improving performance. However, conclusive evidence of the same is yet to be obtained. The time of start phase of swimming is a factor that can significantly influence competition performance in a swimming race...
December 2016: International Journal of Sports Physical Therapy
https://www.readbyqxmd.com/read/27999718/the-effects-of-instrument-assisted-soft-tissue-mobilization-on-lower-extremity-muscle-performance-a-randomized-controlled-trial
#19
Nicole MacDonald, Russell Baker, Scott W Cheatham
BACKGROUND: Instrument-Assisted Soft Tissue Mobilization (IASTM) is a non-invasive therapeutic technique used to theoretically aid in scar tissue breakdown and absorption, fascial mobilization, and improved tissue healing. Researchers have hypothesized that utilizing IASTM will improve muscular efficiency and performance; yet previous Investigations has been focused on treating injury. OBJECTIVE: The purpose of this investigation was to explore the effects of IASTM on muscle performance to assess if typical treatment application affected measures of muscular performance...
December 2016: International Journal of Sports Physical Therapy
https://www.readbyqxmd.com/read/27998282/does-therapeutic-hypothermia-during-extracorporeal-cardiopulmonary-resuscitation-preserve-cardiac-function
#20
Harald A Bergan, Per S Halvorsen, Helge Skulstad, Erik Fosse, Jan F Bugge
BACKGROUND: Extracorporeal cardiopulmonary resuscitation (E-CPR) is increasingly used as a rescue method in the management of cardiac arrest and provides the opportunity to rapidly induce therapeutic hypothermia. The survival after a cardiac arrest is related to post-arrest cardiac function, and the application of therapeutic hypothermia post-arrest is hypothesized to improve cardiac outcome. The present animal study compares normothermic and hypothermic E-CPR considering resuscitation success, post-arrest left ventricular function and magnitude of myocardial injury...
December 20, 2016: Journal of Translational Medicine
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