3,608 research outputs found
sj-pdf-1-vdi-10.1177_10406387221105890 – Supplemental material for Salmonella enterica serovar Brandenburg abortions in dairy cattle
No full textSupplemental material, sj-pdf-1-vdi-10.1177_10406387221105890 for Salmonella enterica serovar Brandenburg abortions in dairy cattle by Christopher L. Siepker, Kent J. Schwartz, Tyler J. Feldhacker, Drew R. Magstadt, Orhan Sahin, Marcelo Almeida, Ganwu Li, Kristin P. Hayman and Patrick J. Gorden in Journal of Veterinary Diagnostic Investigation</p
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Texas African American Millionaire Henry Miller Morgan’s Social Justice Crusade: Tyler Barber College Chain, 1933-1974
No full textThis thesis examines the social justice ideology of Henry Miller Morgan (also known as H.M. Morgan and Henry Morgan), the Texas African American millionaire and founder of a 1930s Texas African American barber school business. Tyler Barber College Chain was the first barber school in the nation for African Americans. It was founded in Tyler, Texas in 1933 during Jim Crow segregation after Texas passed a barber license law in 1929 that required all barbers to be trained and pass a state exam. Tyler Barber College Chain had locations all over the country during Jim Crow segregation and trained an estimated 80 percent of the nation’s African American barbers. Morgan was a barber, a businessman, and active with the Texas NAACP, the Democratic Progressive Voters League, his local Baptist church, and the National Negro Business League. When he died in Houston in 1961 at his hotel, Jet magazine reported that he was a millionaire
sj-docx-2-dhj-10.1177_20552076241249925 - Supplemental material for Longitudinal clinical decision support for assessing decisions over time: State-of-the-art and future directions
No full textSupplemental material, sj-docx-2-dhj-10.1177_20552076241249925 for Longitudinal clinical decision support for assessing decisions over time: State-of-the-art and future directions by Tyler J Loftus, Jeremy A Balch, Jenna L Marquard, Jessica M Ray, Brian S Alper, Neeraj Ojha, Azra Bihorac, Genevieve Melton-Meaux, Gopal Khanna and Christopher J Tignanelli in DIGITAL HEALTH</p
sj-docx-1-dhj-10.1177_20552076241249925 - Supplemental material for Longitudinal clinical decision support for assessing decisions over time: State-of-the-art and future directions
No full textSupplemental material, sj-docx-1-dhj-10.1177_20552076241249925 for Longitudinal clinical decision support for assessing decisions over time: State-of-the-art and future directions by Tyler J Loftus, Jeremy A Balch, Jenna L Marquard, Jessica M Ray, Brian S Alper, Neeraj Ojha, Azra Bihorac, Genevieve Melton-Meaux, Gopal Khanna and Christopher J Tignanelli in DIGITAL HEALTH</p
Progressive hyperthermia elicits distinct responses in maximum and rapid torque production
No full textObjectivesTo investigate the effect of progressive whole-body hyperthermia on maximal, and rapid voluntary torque production, and their neuromuscular determinants.DesignRepeated measures, randomised.MethodsNine participants performed sets of neuromuscular assessments in HOT conditions (~50°C, ~35% relative humidity) at rectal temperatures (Tre) of 37, 38.5 and 39.5°C and in CON conditions (~22°C, ~5% relative humidity) at a Tre of ~37°C and pre-determined comparative time-points. Electrically evoked twitch (single impulse) and octet (8 impulses at 300 Hz) responses were measured at rest. Maximum voluntary torque (MVT), surface electromyography (EMG) normalised to maximal M-wave, and voluntary activation (VA) were measured during 3-5 s isometric maximal voluntary contractions. Rate of torque development (RTD) and normalised EMG were measured during rapid voluntary isometric contractions from rest.ResultsAll neuromuscular variables were unaffected by time in CON. In HOT, MVT, normalised EMG at MVT and VA were lower at 39.5°C compared to 37°C (p<0.05). Early- (0-50 ms) and middle- (50-100 ms) phase voluntary RTD were unaffected by increased Tre (p>0.05), despite lower normalised EMG at Tre 39.5°C (p<0.05) in rapid contractions. In contrast, late-phase (100-150 ms) voluntary RTD was lower at 38.5°C and 39.5°C compared to 37°C (p<0.05) in HOT. Evoked twitch and octet RTD increased with increased Tre (p<0.05). ConclusionsHyperthermia reduced late-phase voluntary RTD, likely due to reduced neural drive and the reduction in MVT. In contrast, early- and middle-phase voluntary RTD were unaffected by hyperthermia, likely due to the conflicting effects of reduced neural drive but faster intrinsic contractile properties.© 2021, Sports Medicine Australia. Published by Elsevier Ltd. The attached document (embargoed until 19/03/2023) is an author produced version of a paper published in JOURNAL OF SCIENCE AND MEDICINE IN SPORT uploaded in accordance with the publisher’s self-archiving policy. The final published version (version of record) is available online at the link. Some minor differences between this version and the final published version may remain. We suggest you refer to the final published version should you wish to cite from it.</p
sj-docx-1-han-10.1177_15589447221092056 – Supplemental material for Platelet-Rich Plasma Versus Corticosteroid Injections for the Treatment of Mild-to-Moderate Carpal Tunnel Syndrome: A Markov Cost-Effectiveness Decision Analysis
No full textSupplemental material, sj-docx-1-han-10.1177_15589447221092056 for Platelet-Rich Plasma Versus Corticosteroid Injections for the Treatment of Mild-to-Moderate Carpal Tunnel Syndrome: A Markov Cost-Effectiveness Decision Analysis by Kevin M. Klifto, Christopher S. Klifto, Tyler S. Pidgeon, Marc J. Richard, David S. Ruch and Stephen H. Colbert in HAND</p
Impairment of Cycling Capacity in the Heat in Well-Trained Endurance Athletes After High-Intensity Short-Term Heat Acclimation
No full textPURPOSE: To investigate the effects of short-term, high-intensity interval training (HIIT) on heat acclimation (HA).METHODS: Male cyclists/triathletes were assigned into either an HA (n = 13) or a comparative (COMP, n = 10) group. HA completed 3 cycling heat-stress tests to exhaustion (60% Wmax) (HST1, pre-HA; HST2, post-HA; HST3, 7 d post-HA). HA consisted of 30-min bouts of HIIT cycling (6 min at 50% Wmax then 12 x 1 min 100%-Wmax bouts with 1 min rest between bouts) on 5 consecutive days. COMP completed HST1 and HST2 only. HST and HA trials were conducted in 35°C/50% relative humidity. Cycling capacity and physiological and perceptual data were recorded.RESULTS:: Cycling capacity was impaired after HIIT HA (77.2 ± 34.2 min vs 56.2 ± 24.4 min, P = .03) and did not return to baseline after 7 d of no HA (59.2 ± 37.4 min). Capacity in HST1 and HST2 was similar in COMP (43.5 ± 8.3 vs 46.8 ± 15.7 min, P = .54). HIIT HA lowered resting rectal (37.0°C ± 0.3°C vs 36.8°C ± 0.2°C, P = .05) and body temperature (36.0°C ±0.3°C vs 35.8°C ± 0.3°C, P = .03) in HST2 compared with HST1 and lowered mean skin temperature (35.4°C ± 0.5°C vs 35.1°C ± 0.3°C, P = .02) and perceived strain on day 5 compared with day 1 of HA. All other data were unaffected.CONCLUSIONS: Cycling capacity was impaired in the heat after 5 d of consecutive HIIT HA despite some heat adaptation. Based on the data, this approach is not recommended for athletes preparing to compete in the heat; however, it is possible that it may be beneficial if a state of overreaching is avoided.© 2019, Human Kinetics. This is an author produced version of a paper published in INTERNATIONAL JOURNAL OF SPORTS PHYSIOLOGY AND PERFORMANCE uploaded in accordance with the publisher’s self- archiving policy. The final published version (version of record) is available online at the link below. Some minor differences between this version and the final published version may remain. We suggest you refer to the final published version should you wish to cite from it
The effect of hyperthermia with localised head and neck cooling on neuromuscular function
No full textHead, face and neck cooling for performance: A systematic review and meta-analysis:A Systematic Review and Meta-Analysis
No full textPURPOSE: Cooling the head, face, and neck can have strong perceptual effects that contribute to improved performance. This systematic review aimed to determine the effect of cooling strategies targeting the head, face, and neck on physical and cognitive performance, determine any associated physiological and perceptual responses, synthesize adverse events, and provide practical applications.METHODS: We conducted a systematic review and multilevel meta-analysis, adhering to PRISMA guidelines. Studies that investigated the effect of cooling strategies targeting the head, face, or neck on a physical or cognitive task using a controlled trial design were included.RESULTS: Sixty-three studies were identified, involving 618 participants (86.6% male). Cooling strategies included water-perfused devices (18.7%), phase-change neck collars (17.3%), fanning/cold air (14.7%), phase-change headwear (13.3%), ice/gel packs (13.3%), cold towels (5.3%), menthol application (4.0%), water spraying/dousing (4.0%), or a combination of strategies (9.3%). The effect of cooling on both self-paced and fixed-intensity exercise tasks was inconclusive; the 95% CI of the pooled effect was compatible with no effect and medium beneficial effects but not harmful effects. We were unable to pool cognitive data. Cooling reduced the skin temperature at the target site and improved thermal sensation and comfort. Effects on heart rate and core and mean skin temperatures were negligible. Adverse events were rare, and no intervention subgroup was superior.CONCLUSION: We recommend that athletes experiment with a range of head-, face-, and neck-cooling strategies, including using different doses and timings, to determine the optimal strategy for their individual and sport context.</p
Microdistribution of Faunal Assemblages at Deep-Sea Hydrothermal Vents in the Southern Ocean
No full textChemosynthetic primary production by microbes supports abundant faunal assemblages at deep-sea hydrothermal vents, with zonation of invertebrate species typically occurring along physico-chemical gradients. Recently discovered vent fields on the East Scotia Ridge (ESR) in the Southern Ocean represent a new province of vent biogeography, but the spatial dynamics of their distinct fauna have yet to be elucidated. This study determines patterns of faunal zonation, species associations, and relationships between faunal microdistribution and hydrothermal activity in a vent field at a depth of 2,400 m on the ESR. Remotely operated vehicle (ROV) dives obtained high-definition imagery of three chimney structures with varying levels of hydrothermal activity, and a mosaic image of >250 m2 of seafloor co-registered with temperature measurements. Analysis of faunal microdistribution within the mosaiced seafloor reveals a consistent pattern of faunal zonation with increasing distance from vent sources and peak temperatures. Assemblages closest to vent sources are visibly dominated by a new species of anomuran crab, Kiwa n. sp. (abundance >700 individuals m?2), followed by a peltospiroid gastropod (>1,500 individuals m?2), eolepadid barnacle (>1,500 individuals m?2), and carnivorous actinostolid anemone (>30 individuals m?2). Peripheral fauna are not dominated by a single taxon, but include predatory and scavenger taxa such as stichasterid seastars, pycnogonids and octopus. Variation in faunal microdistribution on chimneys with differing levels of activity suggests a possible successional sequence for vent fauna in this new biogeographic province. An increase in ?34S values of primary consumers with distance from vent sources, and variation in their ?13C values also indicate possible zonation of nutritional modes of the vent fauna. By using ROV videography to obtain a high-resolution representation of a vent environment over a greater extent than previous studies, these results provide a baseline for determining temporal change and investigations of processes structuring faunal assemblages at Southern Ocean vents
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