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https://www.readbyqxmd.com/read/28925076/using-the-robust-design-framework-and-relative-abundance-to-predict-the-population-size-of-pallid-sturgeon-scaphirhynchus-albus-in-the-lower-missouri-river
#1
K D Steffensen, L A Powell, M A Pegg
Several population viability models were constructed to aid recovery in endangered Scaphirhynchus albus, but these models are dependent upon accurate and precise input parameters that are not provided with standard catch per unit effort (CPUE) indices. Nine years of sampling efforts, under the robust design framework, provided 1223 unique captures with an 18·3% recapture rate. The annual population estimates varied from 4·0-7·3 fish rkm(-1) for wild and 8·4-18·4 fish rkm(-1) for hatchery-reared S...
September 18, 2017: Journal of Fish Biology
https://www.readbyqxmd.com/read/28914060/nuclear-spin-symmetry-conservation-in-1-h2-16-o-investigated-by-direct-absorption-ftir-spectroscopy-of-water-vapor-cooled-down-in-supersonic-expansion
#2
Robert Georges, Xavier Michaut, Audrey Moudens, Manuel Goubet, Olivier Pirali, Pascale Soulard, Pierre Asselin, Therese R Huet, Pascale Roy, Martin Fournier, Andrey A Vigasin
We report the results of an experimental study related to the relaxation of the nuclear spin isomers of the water molecule in a supersonic expansion. Rovibrational lines of both ortho- and para- spin isomers were recorded in the spectral range of H2O stretching vibrations around 3700 cm(-1) using FTIR direct absorption. Water vapor seeded either in argon, helium, oxygen or in a mixture of oxygen and argon was expanded into vacuum through a slit nozzle. Partial water vapor pressure in the mixture varied in a wide range from 1...
September 15, 2017: Journal of Physical Chemistry. A
https://www.readbyqxmd.com/read/28843676/ventilatory-response-to-carbon-monoxide-during-exercise-in-hypoxia-and-hypercapnia
#3
George H Crocker, Jenny Kwon, Philip H Kass, James H Jones
We tested if the addition of CO to inspired gases with different inspired O2 and CO2 fractions (FIO2 and FICO2) stimulates ventilation at rest or during submaximal exercise. We measured minute ventilation (VE) in goats breathing combinations of FIO2 ranging from 0.21 to 0.06 and FICO2 from 0 to 0.05, both with and without inspired CO resulting in carboxyhemoglobin fractions (FHbCO) of 0.02 (no CO added), 0.15, or 0.45. We did this while they stood on a treadmill, walked at 1.4, or trotted at 2.5ms(-1). Hypoxia, hypercapnia, and exercise, alone and in combination, increased ventilation compared to breathing air at rest...
August 24, 2017: Respiratory Physiology & Neurobiology
https://www.readbyqxmd.com/read/28836845/repeatability-of-gait-pattern-variables-measured-by-use-of-extremity-mounted-inertial-measurement-units-in-nonlame-horses-during-trotting
#4
Antonio M Cruz, Ugo E Maninchedda, Dominik Burger, Sabine Wanda, Beatriz Vidondo
OBJECTIVE To determine repeatability of gait variables measured by use of extremity-mounted inertial measurement units (IMUs) in nonlame horses during trotting under controlled conditions of treadmill exercise. ANIMALS 10 horses. PROCEDURES Six IMUs were strapped to the metacarpal, metatarsal, and distal tibial regions of each horse. Data were collected in a standardized manner (3 measurements/d on 3 d/wk over a 3-week period) while each horse was trotted on a treadmill. Every measurement consisted of a minimum of 20 strides from which a minimum of 10 strides was selected for analysis...
September 2017: American Journal of Veterinary Research
https://www.readbyqxmd.com/read/28836316/maximum-permissible-load-for-kiso-horses-trotting-over-a-short-straight-course
#5
Akihiro Matsuura, Sota Inoue, Mami Irimajiri, Koichi Hodate
This study aimed to determine the load-bearing capacity of trotting Kiso horses using gait analysis. Ten Kiso horses with a height at withers of 128 cm were included. Their riders were fitted with a marker (70 mm in diameter placed on their chest) recorded by two digital DVD cameras while trotting along a short, straight course. In total, eight tests were performed for each horse: the first with a 70 kg load; six with randomly loaded weights ranging 80-130 kg; and then a final test again with a 70 kg load...
August 24, 2017: Animal Science Journal, Nihon Chikusan Gakkaihō
https://www.readbyqxmd.com/read/28801497/veterinary-student-competence-in-equine-lameness-recognition-and-assessment-a-mixed-methods-study
#6
Sandra D Starke, Stephen A May
The development of perceptual skills is an important aspect of veterinary education. The authors investigated veterinary student competency in lameness evaluation at two stages, before (third year) and during (fourth/fifth year) clinical rotations. Students evaluated horses in videos, where horses were presented during trot on a straight line and in circles. Eye-tracking data were recorded during assessment on the straight line to follow student gaze. On completing the task, students filled in a structured questionnaire...
August 12, 2017: Veterinary Record
https://www.readbyqxmd.com/read/28789539/angle-resolved-molecular-beam-scattering-of-no-at-the-gas-liquid-interface
#7
Amelia Zutz, David J Nesbitt
This study presents first results on angle-resolved, inelastic collision dynamics of thermal and hyperthermal molecular beams of NO at gas-liquid interfaces. Specifically, a collimated incident beam of supersonically cooled NO ((2)Π1/2, J = 0.5) is directed toward a series of low vapor pressure liquid surfaces ([bmim][Tf2N], squalane, and PFPE) at θinc = 45(1)°, with the scattered molecules detected with quantum state resolution over a series of final angles (θs = -60°, -30°, 0°, 30°, 45°, and 60°) via spatially filtered laser induced fluorescence...
August 7, 2017: Journal of Chemical Physics
https://www.readbyqxmd.com/read/28750969/a-case-study-utilizing-myofascial-release-acupressure-and-trigger-point-therapy-to-treat-bilateral-stringhalt-in-a-12%C3%A2-year-old-akhal-teke-horse
#8
Tammy Brockman
"Stringhalt" is a horse condition that causes one or both hind legs to spasm when walking, trotting or backing. The condition is thought to be related to a neurological cause from either plant toxicity or peripheral nerve injury. The prognosis is poor and the horse's performance and quality of life can be affected. Treatment has included surgically cutting the digital extensors with varied results. The objective of the study is to utilize soft tissue release via acupressure, trigger point and myofascial release to decrease symptoms of stringhalt...
July 2017: Journal of Bodywork and Movement Therapies
https://www.readbyqxmd.com/read/28727025/effect-of-handling-intensity-at-the-time-of-transport-for-slaughter-on-physiological-response-and-carcass-characteristics-in-beef-cattle-fed-ractopamine-hydrochloride
#9
J A Hagenmaier, C D Reinhardt, S J Bartle, J N Henningson, M J Ritter, M S Calvo-Lorenzo, G J Vogel, C A Guthrie, M G Siemens, D U Thomson
The effects of handling intensity on the physiological response and carcass characteristics of feedlot cattle fed ractopamine hydrochloride were evaluated at the time of transport to slaughter. Eighty steers (BW = 668 ± 36 kg) representing 10 lots of similar breed, frame size, and degree of finish were blocked by lot, stratified by weight, and randomly assigned to 1 of 2 handling intensities (HI) over a 1,600 m dirt alley course: 1) low-stress handling (LSH) or 2) high-stress handling (HSH). For the LSH treatment, 4 penmates were kept at a walk with the use of a lead rider...
May 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28726982/effects-of-ractopamine-hydrochloride-on-growth-performance-carcass-characteristics-and-physiological-response-to-different-handling-techniques
#10
J A Hagenmaier, C D Reinhardt, M J Ritter, M S Calvo-Lorenzo, G J Vogel, C A Guthrie, M G Siemens, K F Lechtenberg, D J Rezac, D U Thomson
Feedlot cattle ( = 128; BW = 549 ± 60 kg) were used to evaluate the effects of ractopamine hydrochloride (RAC) on growth performance, physiological response to handling, and mobility during shipment for slaughter in a study utilizing a split-plot design with a 2 × 2 factorial arrangement of treatments: 1) diet (CON [no β-adrenergic agonist] vs. RAC [400 mg·animal·d ractopamine hydrochloride for 28 d]) and 2) handling intensity (HI; low-stress handling [LSH; cattle moved at a walking pace with no electric prod use] vs...
May 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28697877/alterations-in-thoracolumbosacral-movement-when-pain-causing-lameness-has-been-improved-by-diagnostic-analgesia
#11
L Greve, S Dyson, T Pfau
Lameness, thoracolumbosacral pain and reduced range of motion (ROM) often coexist; better understanding of their relationship is needed. The objectives were to determine if thoracolumbosacral movement of horses changes when pain causing lameness is improved by diagnostic analgesia. We hypothesised that reduction of lameness will increase ROM of the thoracolumbosacral region. Thirteen horses with different types of hind limb lameness were trotted in straight lines and lunged on a 10m diameter circle on left and right reins before and after lameness was subjectively substantially improved by diagnostic analgesia...
June 2017: Veterinary Journal
https://www.readbyqxmd.com/read/28690335/spatially-resolved-images-of-reactive-ions-in-the-orion-bar-%C3%A2-%C3%A2
#12
Javier R Goicoechea, Sara Cuadrado, Jérôme Pety, Emeric Bron, John H Black, José Cernicharo, Edwige Chapillon, Asunción Fuente, Maryvonne Gerin
We report high angular resolution (4.9″×3.0″) images of reactive ions SH(+), HOC(+), and SO(+) toward the Orion Bar photodissociation region (PDR). We used ALMA-ACA to map several rotational lines at 0.8 mm, complemented with multi-line observations obtained with the IRAM 30 m telescope. The SH(+) and HOC(+) emission is restricted to a narrow layer of 2″- to 10″-width (≈800 to 4000 AU depending on the assumed PDR geometry) that follows the vibrationally excited [Formula: see text] emission. Both ions efficiently form very close to the H/H2 transition zone, at a depth of Av≲1 mag into the neutral cloud, where abundant C(+), S(+), and [Formula: see text] coexist...
May 2017: Astronomy and Astrophysics
https://www.readbyqxmd.com/read/28688396/experimental-and-theoretical-investigations-of-h2o-ar
#13
Thomas Vanfleteren, Tomas Földes, Michel Herman, Jacques Liévin, Jérôme Loreau, Laurent H Coudert
We have used continuous-wave cavity ring-down spectroscopy to record the spectrum of H2O-Ar in the 2OH excitation range of H2O. 24 sub-bands have been observed. Their rotational structure (Trot = 12 K) is analyzed and the lines are fitted separately for ortho and para species together with microwave and far infrared data from the literature, with a unitless standard deviation σ=0.98 and 1.31, respectively. Their vibrational analysis is supported by a theoretical input based on an intramolecular potential energy surface obtained through ab initio calculations and computation of the rotational energy of sub-states of the complex with the water monomer in excited vibrational states up to the first hexad...
July 7, 2017: Journal of Chemical Physics
https://www.readbyqxmd.com/read/28685422/chronic-diseases-as-barriers-to-oxygen-delivery-a-unifying-hypothesis-of-tissue-reoxygenation-therapy
#14
G A Perdrizet
Modern medical practice has resulted in the accumulation of a growing number of incurable chronic diseases, many of which are inflammatory in nature. Inflammation establishes a hypoxic microenvironment within tissues, a condition of inflammatory hypoxia (IH). Tissues thus affected become severely compromised, are unable to elicit adaptive responses and eventually develop fibrosis and fixed microvascular deficits. Previous work has demonstrated that tissue hypoxia exits even within the simple human model of self-resolving inflammation, the tuberculin reaction...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28650238/three-dimensional-inverse-dynamics-of-the-forelimb-of-beagles-at-a-walk-and-trot
#15
Emanuel Andrada, Lars Reinhardt, Karin Lucas, Martin S Fischer
OBJECTIVE To perform 3-D inverse dynamics analysis of the entire forelimb of healthy dogs during a walk and trot. ANIMALS 5 healthy adult Beagles. PROCEDURES The left forelimb of each dog was instrumented with 19 anatomic markers. X-ray fluoroscopy was used to optimize marker positions and perform scientific rotoscoping for 1 dog. Inverse dynamics were computed for each dog during a walk and trot on the basis of data obtained from an infrared motion-capture system and instrumented quad-band treadmill. Morphometric data were obtained from a virtual reconstruction of the left forelimb generated from a CT scan of the same dog that underwent scientific rotoscoping...
July 2017: American Journal of Veterinary Research
https://www.readbyqxmd.com/read/28650237/racing-performance-of-standardbred-trotting-horses-undergoing-surgery-of-the-carpal-flexor-sheath-and-age-and-sex-matched-control-horses
#16
James L Carmalt, Bengt C Johansson, Sandra M Zetterström, Rebecca C McOnie
OBJECTIVE To determine factors affecting race speed in Swedish Standardbred horses undergoing surgery of the carpal flexor sheath (CFS), to investigate whether preoperative racing speed was associated with specific intraoperative findings and whether horses returned to racing, and to compare the performance of horses undergoing surgery of the CFS with that of age- and sex-matched control horses. ANIMALS 149 Swedish Standardbred trotters undergoing surgery of the CFS and 274 age- and sex-matched control horses...
July 2017: American Journal of Veterinary Research
https://www.readbyqxmd.com/read/28631166/morphology-and-the-gradient-of-a-symmetric-potential-predict-gait-transitions-of-dogs
#17
Simon Wilshin, G Clark Haynes, Jack Porteous, Daniel Koditschek, Shai Revzen, Andrew J Spence
Gaits and gait transitions play a central role in the movement of animals. Symmetry is thought to govern the structure of the nervous system, and constrain the limb motions of quadrupeds. We quantify the symmetry of dog gaits with respect to combinations of bilateral, fore-aft, and spatio-temporal symmetry groups. We tested the ability of symmetries to model motion capture data of dogs walking, trotting and transitioning between those gaits. Fully symmetric models performed comparably to asymmetric with only a [Formula: see text] increase in the residual sum of squares and only one-quarter of the parameters...
August 2017: Biological Cybernetics
https://www.readbyqxmd.com/read/28622756/effects-of-implied-motion-and-facing-direction-on-positional-preferences-in-single-object-pictures
#18
Stephen E Palmer, Thomas A Langlois
Palmer, Gardner, and Wickens studied aesthetic preferences for pictures of single objects and found a strong inward bias: Right-facing objects were preferred left-of-center and left-facing objects right-of-center. They found no effect of object motion (people and cars showed the same inward bias as chairs and teapots), but the objects were not depicted as moving. Here we measured analogous inward biases with objects depicted as moving with an implied direction and speed by having participants drag-and-drop target objects into the most aesthetically pleasing position...
July 2017: Perception
https://www.readbyqxmd.com/read/28548349/head-withers-and-pelvic-movement-asymmetry-and-their-relative-timing-in-trot-in-racing-thoroughbreds-in-training
#19
T Pfau, K Noordwijk, M F Sepulveda Caviedes, E Persson-Sjodin, A Barstow, B Forbes, M Rhodin
BACKGROUND: Horses show compensatory head movement in hindlimb lameness and compensatory pelvis movement in forelimb lameness but little is known about the relationship of withers movement symmetry with head and pelvic asymmetry in horses with naturally occurring gait asymmetries. Objectives To document head, withers and pelvic movement asymmetry and timing differences in horses with naturally occurring gait asymmetries. STUDY DESIGN: Retrospective analysis of gait data...
May 26, 2017: Equine Veterinary Journal
https://www.readbyqxmd.com/read/28535914/does-gantry-rotation-time-influence-accuracy-of-volume-computed-tomography-dose-index-ctdivol-in-modern-ct
#20
Atsushi Fukuda, Nao Ichikawa, Yoshiharu Fujita, Pei-Jan Paul Lin, Kosuke Matsubara, Tosiaki Miyati
PURPOSE: The purpose of this study was to develop a gantry overrun corrected CTDIvol (cCTDIvol) dosimetry and evaluate the differences between the displayed CTDIvol (dCTDIvol), measured CTDIvol (mCTDIvol), and the cCTDIvol. METHODS AND MATERIALS: The each 8 rotation times between 275 and 1000ms of two CT scanners were investigated. Rotation time (Trot) and the beam-on time (Tbeam) in axial scanning were measured accurately to determine the gantry overrun time (Tover) as Tbeam-Trot...
May 2017: Physica Medica: PM
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