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https://www.readbyqxmd.com/read/28641050/thrifty-females-frisky-males-winter-energetics-of-hibernating-bats-from-a-cold-climate
#1
Zenon J Czenze, Kristin A Jonasson, Craig K R Willis
Mammalian hibernation consists of energy-saving torpor bouts (periods of controlled reduction in body temperature [Tb]) interspersed with brief arousals to normothermic Tb. Frequency and duration of torpor bouts and arousals can affect winter survival and are thought to be influenced by an optimization balancing the energetic benefits of prolonged torpor against the physiological and ecological costs (e.g., accumulation of metabolic wastes). Female little brown bats (Myotis lucifugus) spend their fat reserves more slowly than males during winter, presumably so they can emerge from hibernation in good condition to initiate pregnancy...
July 2017: Physiological and Biochemical Zoology: PBZ
https://www.readbyqxmd.com/read/28640769/physiological-profile-and-activity-pattern-of-minor-gaelic-football-players
#2
Bryan D Cullen, Mark T Roantree, Andrew L McCarren, David T Kelly, Paul L OʼConnor, Sarah M Hughes, Pat G Daly, Niall M Moyna
Cullen, BD, Roantree, M, McCarren, A, Kelly, DT, O'Connor, PL, Hughes, SM, Daly, PG, and Moyna1, NM. Physiological profile and activity pattern of minor Gaelic football players. J Strength Cond Res 31(7): 1811-1820, 2017-The purpose of this study was to evaluate the physiological profile and activity pattern in club- and county-level under-18 (U-18) Gaelic football players relative to playing position. Participants (n = 85) were analyzed during 17 official 15-a-side matches using global positioning system technology (SPI Pro X II; GPSports Systems, Canberra, Australia) and heart rate (HR) telemetry...
July 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28637659/enduring-effects-of-perinatal-nicotine-exposure-on-murine-sleep-in-adulthood
#3
Jeremy Charles Borniger, Reuben F Don, Ning Zhang, Robert Thomas Boyd, Randy J Nelson
The long-term consequences of early life nicotine exposure are poorly defined. Approximately 8-10% of women report smoking during pregnancy, and this may promote aberrant development in the offspring. To this end, we investigated potential enduring effects of perinatal nicotine exposure on murine sleep and affective behaviors in adulthood (~13-15 weeks of age) in C57Bl6j mice. Mothers received a water bottle containing 200 µg/ml nicotine bitartrate dihydrate in 2% w/v saccharin or pH-matched 2% saccharin with 0...
June 21, 2017: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
https://www.readbyqxmd.com/read/28634330/increase-in-predation-risk-and-trophic-level-induced-by-nocturnal-visits-of-piscivorous-fishes-in-a-temperate-seagrass-bed
#4
Jun Shoji, Hiromichi Mitamura, Kotaro Ichikawa, Hikari Kinoshita, Nobuaki Arai
The majority of surveys on food webs of aquatic ecosystems have been conducted during the day owning to difficulties in sampling animals at night. In this study, to examine diurnal changes in predator-prey interactions in a temperate seagrass Zostera marina bed, a quantitative day/night survey of fish, the dominant animal community, coupled with acoustic telemetry of their predators, was conducted. The number of species, abundance, and biomass of piscivorous predators and mean trophic level during the night were significantly higher than those in the day in all seasons...
June 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28633442/continuous-glucose-monitoring-in-female-nod-mice-reveals-daily-rhythms-and-a-negative-correlation-with-body-temperature
#5
Ron Korstanje, Jennifer L Ryan, Holly S Savage, Bonnie L Lyons, Kevin G Kane, Stacey J Sukoff Rizzo
Previous studies with continuous glucose monitoring in mice have been limited to several days or weeks, with the mouse's physical attachment to the equipment impacting behavior and measurements. In the current study we measured blood glucose and body temperature at 10-second intervals for 12 weeks in a cohort of NOD/ShiLtJ female mice using wireless telemetry. This allowed us, for the first time, to obtain a high-resolution profile of the circadian rhythm of these two parameters and the onset of hyperglycemic development in real time...
June 19, 2017: Endocrinology
https://www.readbyqxmd.com/read/28629374/multi-purpose-ecg-telemetry-system
#6
Mohamed Marouf, Goran Vukomanovic, Lazar Saranovac, Miroslav Bozic
BACKGROUND: The Electrocardiogram ECG is one of the most important non-invasive tools for cardiac diseases diagnosis. Taking advantage of the developed telecommunication infrastructure, several approaches that address the development of telemetry cardiac devices were introduced recently. Telemetry ECG devices allow easy and fast ECG monitoring of patients with suspected cardiac issues. Choosing the right device with the desired working mode, signal quality, and the device cost are still the main obstacles to massive usage of these devices...
June 19, 2017: Biomedical Engineering Online
https://www.readbyqxmd.com/read/28627977/masquerading-bundle-branch-block-as-a-presenting-manifestation-of-complete-atrioventricular-block-that-caused-syncope
#7
Zhenyu Jiao, Ying Tian, Xinchun Yang, Xingpeng Liu
A 59-year-old male patient was admitted with the main complaints of stuffiness and shortness of breath. An ECG from precordial leads on admission showed masquerading bundle branch block. Syncope frequently occurred after admission. During syncope episodes, ECG telemetry showed that the syncope was caused by intermittent complete atrioventricular block, with the longest RR interval lasting for 4.36 s. At the gap of syncope, ECG showed complete right bundle branch block accompanied by alternation of left anterior fascicular block and left posterior fascicular block...
January 1, 2017: Journal of International Medical Research
https://www.readbyqxmd.com/read/28622990/displacement-effects-of-heavy-human-use-on-coral-reef-predators-within-the-molokini-marine-life-conservation-district
#8
Alexander Filous, Alan M Friedlander, Haruko Koike, Marc Lammers, Adam Wong, Kristy Stone, Russell T Sparks
The impact of marine ecotourism on reef predators is poorly understood and there is growing concern that overcrowding in Marine Protected Areas (MPAs) may disturb the species that these areas were established to protect. To improve our understanding of this issue, we used acoustic telemetry to examine the relationship between human activity at the Molokini Marine Life Conservation District (MLCD) and the habitat use of five reef-associated predators (Caranx melampygus, Caranx ignobilis, Triaenodon obesus, Carcharhinus amblyrhynchos, and Aprion virscens)...
June 13, 2017: Marine Pollution Bulletin
https://www.readbyqxmd.com/read/28622122/exploding-head-syndrome-in-the-epilepsy-monitoring-unit-case-report-and-literature-review
#9
Kara Gillis, Marcus C Ng
Diagnosis of paroxysmal events in epilepsy patients is often made through video-telemetry electroencephalography in the epilepsy monitoring unit. This case report describes the first-ever diagnosis of exploding head syndrome in a patient with longstanding epilepsy and novel nocturnal events. In this report, we describe the presentation of exploding head syndrome and its prevalence and risk factors. In addition, the prevalence of newly diagnosed sleep disorders through video-telemetry electroencephalography in the epilepsy monitoring unit is briefly reviewed...
2017: Neurodiagnostic Journal
https://www.readbyqxmd.com/read/28614414/species-specific-variation-in-nesting-and-postfledging-resource-selection-for-two-forest-breeding-migrant-songbirds
#10
Julianna M A Jenkins, Frank R Thompson, John Faaborg
Habitat selection is a fundamental component of community ecology, population ecology, and evolutionary biology and can be especially important to species with complex annual habitat requirements, such as migratory birds. Resource preferences on the breeding grounds may change during the postfledging period for migrant songbirds, however, the degree to which selection changes, timing of change, and whether all or only a few species alter their resource use is unclear. We compared resource selection for nest sites and resource selection by postfledging juvenile ovenbirds (Seiurus aurocapilla) and Acadian flycatchers (Empidonax virescens) followed with radio telemetry in Missouri mature forest fragments from 2012-2015...
2017: PloS One
https://www.readbyqxmd.com/read/28614406/learning-from-the-mistakes-of-others-how-female-elk-cervus-elaphus-adjust-behaviour-with-age-to-avoid-hunters
#11
Henrik Thurfjell, Simone Ciuti, Mark S Boyce
In animal behaviour, there is a dichotomy between innate behaviours (e.g., temperament or personality traits) versus those behaviours shaped by learning. Innate personality traits are supposedly less evident in animals when confounded by learning acquired with experience through time. Learning might play a key role in the development and adoption of successful anti-predator strategies, and the related adaptation has the potential to make animals that are more experienced less vulnerable to predation. We carried out a study in a system involving a large herbivorous mammal, female elk, Cervus elaphus, and their primary predator, i...
2017: PloS One
https://www.readbyqxmd.com/read/28614162/validity-of-heart-rate-based-indices-to-measure-training-load-and-intensity-in-elite-football-players
#12
Pedro Silva, Eduardo Dos Santos, Mikhail Grishin, José Mário Rocha
This study aimed to identify the most sensible heart rate-based indices to physical measures of training load and intensity. Twenty professional football players competing in the Russian league and in the UEFA Champions League were monitored during 15 training sessions (270 individual records) using GPS devices (10 Hz) and heart rate telemetry. Expert knowledge and a collinearity r < .5 were used initially to select the external physical markers for the final analysis. A multivariate-adjusted within-subjects model was employed to quantify the correlations between heart rate indices with various measures of training intensity and load...
June 12, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28611466/satellite-tagging-of-mediterranean-fin-whales-working-towards-the-identification-of-critical-habitats-and-the-focussing-of-mitigation-measures
#13
Simone Panigada, Gregory P Donovan, Jean-Noël Druon, Giancarlo Lauriano, Nino Pierantonio, Enrico Pirotta, Margherita Zanardelli, Alexandre N Zerbini, Giuseppe Notarbartolo di Sciara
Mediterranean fin whales comprise a genetically distinct population, listed as Vulnerable (VU) in the IUCN Red List. Collisions with vessels are believed to represent the main cause of human-induced mortality. The identification of critical habitats (including migration routes) incorporating satellite telemetry data is therefore crucial to develop focussed conservation efforts. Between 2012 and 2015 thirteen fin whales were equipped with satellite transmitters, 8 in the Pelagos Sanctuary (although two ceased within two days) and 5 in the Strait of Sicily, to evaluate movements and habitat use...
June 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28611372/fuel-loads-acquired-at-a-stopover-site-influence-the-pace-of-intercontinental-migration-in-a-boreal-songbird
#14
Camila Gómez, Nicholas J Bayly, D Ryan Norris, Stuart A Mackenzie, Kenneth V Rosenberg, Philip D Taylor, Keith A Hobson, Carlos Daniel Cadena
Long-distance migratory organisms are under strong selection to migrate quickly. Stopovers demand more time than flying and are used by individuals to refuel during migration, but the effect of fuel loads (fat) acquired at stopover sites on the subsequent pace of migration has not been quantified. We studied stopover behaviour of Grey-cheeked Thrush (Catharus minimus) at a site in northern Colombia and then tracked their migration using an intercontinental radio-telemetry array. Tracking confirmed long-distance flights of more than 3000 km, highlighting the key importance of a single stopover site to the migration strategy of this species...
June 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28609466/multi-level-multi-scale-resource-selection-functions-and-resistance-surfaces-for-conservation-planning-pumas-as-a-case-study
#15
Katherine A Zeller, T Winston Vickers, Holly B Ernest, Walter M Boyce
The importance of examining multiple hierarchical levels when modeling resource use for wildlife has been acknowledged for decades. Multi-level resource selection functions have recently been promoted as a method to synthesize resource use across nested organizational levels into a single predictive surface. Analyzing multiple scales of selection within each hierarchical level further strengthens multi-level resource selection functions. We extend this multi-level, multi-scale framework to modeling resistance for wildlife by combining multi-scale resistance surfaces from two data types, genetic and movement...
2017: PloS One
https://www.readbyqxmd.com/read/28607127/role-of-the-primary-cilia-on-the-macula-densa-and-thick-ascending-limbs-in-regulation-of-sodium-excretion-and-hemodynamics
#16
Jiangping Song, Lei Wang, Fan Fan, Jin Wei, Jie Zhang, Yan Lu, Yiling Fu, Shaohui Wang, Luis A Juncos, Ruisheng Liu
We investigated the significance of the primary cilia on the macula densa and thick ascending limb (TAL) in regulation of renal hemodynamics, sodium excretion, and blood pressure in this study. A tissue-specific primary cilia knock-out (KO) mouse line was generated by crossing NKCC2-Cre mice with IFT88-Δ/flox mice (NKCC2(CRE); IFT88Δ(/flox)), in which the primary cilia were deleted from the macula densa and TAL. NO generation was measured with a fluorescent dye (4,5-diaminofluorescein diacetate) in isolated perfused juxtaglomerular apparatus...
June 12, 2017: Hypertension
https://www.readbyqxmd.com/read/28586707/consensus-based-guidelines-for-video-eeg-monitoring-in-the-pre-surgical-evaluation-of-children-with-epilepsy-in-the-uk
#17
Ronit M Pressler, Stefano Seri, Nick Kane, Tim Martland, Sushma Goyal, Anand Iyer, Elliott Warren, Lesley Notghi, Peter Bill, Rachel Thornton, Richard Appleton, Sarah Doyle, Sarah Rushton, Alan Worley, Stewart G Boyd
PURPOSE: Paediatric Epilepsy surgery in the UK has recently been centralised in order to improve expertise and quality of service available to children. Video EEG monitoring or telemetry is a highly specialised and a crucial component of the pre-surgical evaluation. Although many Epilepsy Monitoring Units work to certain standards, there is no national or international guideline for paediatric video telemetry. METHODS: Due to lack of evidence we used a modified Delphi process utilizing the clinical and academic expertise of the clinical neurophysiology sub-specialty group of Children's Epilepsy Surgical Service (CESS) centres in England and Wales...
May 12, 2017: Seizure: the Journal of the British Epilepsy Association
https://www.readbyqxmd.com/read/28574535/telemetry-monitor-watchers-reduce-bedside-nurses-exposure-to-alarms-by-intercepting-a-high-number-of-nonactionable-alarms
#18
Sonali Palchaudhuri, Stephanie Chen, Elaine Clayton, Anthony Accurso, Sammy Zakaria
Cardiac telemetry, designed to monitor hospitalized patients with active cardiac conditions, is highly utilized outside the intensive care unit but is also resource-intensive and produces many nonactionable alarms. In a hospital setting in which dedicated monitor watchers are set up to be the first responders to system-generated alerts, we conducted a retrospective study of the alerts produced over a continuous 2-month period to evaluate how many were intercepted before nurse notification for being nonactionable, and how many resulted in code team activations...
June 2017: Journal of Hospital Medicine: An Official Publication of the Society of Hospital Medicine
https://www.readbyqxmd.com/read/28555759/postictal-generalized-eeg-suppression-and-respiratory-dysfunction-following-generalized-tonic-clonic-seizures-in-sleep-and-wakefulness
#19
Weifeng Peng, Jessica L Danison, Masud Seyal
OBJECTIVE: Sudden unexpected death in epilepsy (SUDEP) is a common cause of death in epilepsy and frequently occurs following generalized tonic-clonic seizures (GTCS) in sleep. Postictal generalized electroencephalography (EEG) suppression (PGES), postictal immobility, and periictal respiratory dysfunction are potential risk factors for SUDEP. We sought to determine whether there was a difference in respiratory dysfunction, PGES, and postictal immobility for GTCS occurring during wakefulness or sleep...
May 28, 2017: Epilepsia
https://www.readbyqxmd.com/read/28554512/functional-atrial-undersensing-associated-with-device-algorithm-promoting-av-conduction
#20
Pasquale Crea, Angela Nicotera, Dalia Di Nunzio, Giuseppe Picciolo
A 58-year-old woman received a dual chamber pacemaker (Medtronic) for sick sinus syndrome. Given intact AV conduction the Managed Ventricular Pacing mode algorithm (MVP) was programmed. The day after, she suffered from palpitations. Her ECG showed a possible loss of atrial capture accompanied by atrial undersensing. Telemetry-supported pacemaker control confirmed the loss of capture. Undersensing of atrial signal was functional, related to long atrial refractory period in MVP mode algorithm. Device algorithms could induce false suspicions...
May 18, 2017: Journal of Electrocardiology
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