The Experts below are selected from a list of 25713 Experts worldwide ranked by ideXlab platform
Alessandro Moura Zagatto - One of the best experts on this subject based on the ideXlab platform.
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anaerobic capacity estimated by the sum of both Oxygen Equivalents from the glycolytic and phosphagen pathways is dependent on exercise mode running versus cycling
PLOS ONE, 2018Co-Authors: Paulo Eduardo Redkva, Willian Eiji Miyagi, Fabio Milioni, Alessandro Moura ZagattoAbstract:The purpose of this study was to verify whether the exercise modality (i.e., running and cycling) alters the magnitude of “anaerobic” capacity estimated by a single supramaximal effort (AC[La]+EPOCfast). Fourteen healthy men (age: 26±9 years) underwent a maximum incremental test and a supramaximal effort to exhaustion at 115% of the intensity associated with maximal Oxygen uptake to determine the AC[La]+EPOCfast (i.e., the sum of both Oxygen Equivalents from the glycolytic and phosphagen pathways), performed on both a treadmill and cycle ergometer. The maximal Oxygen uptake during running was higher (p = 0.001; large effect size) vs. cycling (48.9±3.9mL·kg-1·min-1 vs. 44.8±5.5mL·kg-1·min-1 respectively). Contrarily, the Oxygen Equivalent from the glycolytic metabolism was not different between exercise modalities (p = 0.133; small effect size; running = 2.35±0.48 L and cycling = 2.18±0.58 L). Furthermore, the “anaerobic” capacity was likely meaning fully (3.65±0.70 L) and very likely meaningfully (949.1±5.7 mL·kg-1) greater in running than cycling (3.81±0.71 L and 52.0±8.1 mL·kg-1). Additionally, the contribution of the phosphagen metabolism was higher (p = 0.001; large effect size) for running compared to cycling (1.6±0.3 L vs.1.3±0.3 L respectively). Therefore, the “anaerobic” capacity estimated by the sum of both Oxygen Equivalents from the glycolytic and phosphagen pathways during a supramaximal effort is influenced by exercise modality and is able to identify the difference in phosphagen metabolic contribution, based on the methodological conditions of this study.
Fielder Catherine - One of the best experts on this subject based on the ideXlab platform.
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HI-MaNGA: Tracing the physics of the neutral and ionized ISM with the second data release
2021Co-Authors: Stark David, Masters, Karen L., Avila-reese Vladimir, Riffel Rogemar, Riffel Rogerio, Boardman, Nicholas Fraser, Zheng Zheng, Weijmans Anne-marie, Dillon Sean, Fielder CatherineAbstract:We present the second data release for the HI-MaNGA programme of HI follow-up observations for the SDSS-IV MaNGA survey. This release contains measurements for 3669 unique galaxies, combining 2108 Green Bank Telescope observations with an updated crossmatch of the MaNGA sample with the ALFALFA survey. We combine these data with MaNGA spectroscopic measurements to examine relationships between HI-to-stellar mass ratio (M_HI/M_*) and average ISM/star formation properties probed by optical emission lines. M_HI/M_* is very weakly correlated with the Equivalent width of Halpha, implying a loose connection between the instantaneous star formation rate and the HI reservoir, although the link between M_HI/M_* and star formation strengthens when averaged even over only moderate timescales (~30 Myrs). Galaxies with elevated HI depletion times have enhanced [OI]/Halpha and depressed Halpha surface brightness, consistent with more HI residing in a diffuse and/or shock heated phase which is less capable of condensing into molecular clouds. Of all optical lines, M_HI/M_* correlates most strongly with Oxygen Equivalent width, EW(O), which is likely a result of the existing correlation between M_HI/M_* and gas-phase metallicity. Residuals in the M_HI/M_*-EW(O) relation are again correlated with [OI]/Halpha and Halpha surface brightness, suggesting they are also driven by variations in the fraction of diffuse and/or shock-heated gas. We recover the strong anti-correlation between M_HI/M_* and gas-phase metallicity seen in previous studies. We also find a relationship between M_HI/M_* and [OI]/Halpha, suggesting that higher fractions of diffuse and/or shock-heated gas are more prevalent in gas-rich galaxies.Comment: Accepted for publication in MNRAS, 23 pages, 13 figures, catalog available at https://greenbankobservatory.org/science/gbt-surveys/hi-manga
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HI-MaNGA : tracing the physics of the neutral and ionized ISM with the second data release
'Oxford University Press (OUP)', 2021Co-Authors: Stark David, Masters, Karen L., Avila-reese Vladimir, Riffel Rogemar, Riffel Rogerio, Boardman, Nicholas Fraser, Zheng Zheng, Weijmans Anne-marie, Dillon Sean, Fielder CatherineAbstract:Funding: VAR acknowledges financial support from CONACyT grant 285721. ZZ acknowledges support by NSFC grant U1931110.Funding for the Sloan Digital Sky Survey IV has been provided by the Alfred P. Sloan Foundation, the U.S. Department of Energy Office of Science, and the Participating Institutions.We present the second data release for the HI-MaNGA programme of H I follow-up observations for the SDSS-IV MaNGA survey. This release contains measurements for 3669 unique galaxies, combining 2108 Green Bank Telescope observations with an updated crossmatch of the MaNGA sample with the ALFALFA survey. We combine these data with MaNGA spectroscopic measurements to examine relationships between H I-to-stellar mass ratio (MHI/M∗MHI/M∗) and average ISM/star formation properties probed by optical emission lines. MHI/M∗MHI/M∗ is very weakly correlated with the Equivalent width of Hα, implying a loose connection between the instantaneous star formation rate and the HI reservoir, although the link between MHI/M∗MHI/M∗ and star formation strengthens when averaged even over only moderate timescales (∼30 Myrs). Galaxies with elevated H I depletion times have enhanced [O I]/Hα and depressed Hα surface brightness, consistent with more H I residing in a diffuse and/or shock heated phase which is less capable of condensing into molecular clouds. Of all optical lines, MHI/M∗MHI/M∗ correlates most strongly with Oxygen Equivalent width, EW(O), which is likely a result of the existing correlation between MHI/M∗MHI/M∗ and gas-phase metallicity. Residuals in the MHI/M∗MHI/M∗−EW(O) relation are again correlated with [O I]/Hα and Hα surface brightness, suggesting they are also driven by variations in the fraction of diffuse and/or shock-heated gas. We recover the strong anti-correlation between MHI/M∗MHI/M∗ and gas-phase metallicity seen in previous studies. We also find a relationship between MHI/M∗MHI/M∗ and [O I]6302/Hα, suggesting that higher fractions of diffuse and/or shock-heated gas are more prevalent in gas-rich galaxies.PostprintPeer reviewe
Paulo Eduardo Redkva - One of the best experts on this subject based on the ideXlab platform.
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anaerobic capacity estimated by the sum of both Oxygen Equivalents from the glycolytic and phosphagen pathways is dependent on exercise mode running versus cycling
PLOS ONE, 2018Co-Authors: Paulo Eduardo Redkva, Willian Eiji Miyagi, Fabio Milioni, Alessandro Moura ZagattoAbstract:The purpose of this study was to verify whether the exercise modality (i.e., running and cycling) alters the magnitude of “anaerobic” capacity estimated by a single supramaximal effort (AC[La]+EPOCfast). Fourteen healthy men (age: 26±9 years) underwent a maximum incremental test and a supramaximal effort to exhaustion at 115% of the intensity associated with maximal Oxygen uptake to determine the AC[La]+EPOCfast (i.e., the sum of both Oxygen Equivalents from the glycolytic and phosphagen pathways), performed on both a treadmill and cycle ergometer. The maximal Oxygen uptake during running was higher (p = 0.001; large effect size) vs. cycling (48.9±3.9mL·kg-1·min-1 vs. 44.8±5.5mL·kg-1·min-1 respectively). Contrarily, the Oxygen Equivalent from the glycolytic metabolism was not different between exercise modalities (p = 0.133; small effect size; running = 2.35±0.48 L and cycling = 2.18±0.58 L). Furthermore, the “anaerobic” capacity was likely meaning fully (3.65±0.70 L) and very likely meaningfully (949.1±5.7 mL·kg-1) greater in running than cycling (3.81±0.71 L and 52.0±8.1 mL·kg-1). Additionally, the contribution of the phosphagen metabolism was higher (p = 0.001; large effect size) for running compared to cycling (1.6±0.3 L vs.1.3±0.3 L respectively). Therefore, the “anaerobic” capacity estimated by the sum of both Oxygen Equivalents from the glycolytic and phosphagen pathways during a supramaximal effort is influenced by exercise modality and is able to identify the difference in phosphagen metabolic contribution, based on the methodological conditions of this study.
David Montanari - One of the best experts on this subject based on the ideXlab platform.
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Development of membrane cryostats for large liquid argon neutrino detectors
IOP Conference Series: Materials Science and Engineering, 2015Co-Authors: David Montanari, M Geynisman, Steve Hentschel, Dimitar Mladenov, Jens Bremer, Thomas Loew, A Gendotti, S Murphy, Chiara Montanari, Marzio NessiAbstract:A new collaboration is being formed to develop a multi-kiloton Long-Baseline neutrino experiment that will be located at the Surf Underground Research Facility (SURF) in Lead, SD. In the present design, the detector will be located inside cryostats filled with 68,400 ton of ultrapure liquid argon (less than 100 parts per trillion of Oxygen Equivalent contamination). To qualify the membrane technology for future very large-scale and underground implementations, a strong prototyping effort is ongoing: several smaller detectors of growing size with associated cryostats and cryogenic systems will be designed and built at Fermilab and CERN. They will take physics data and test different detector elements, filtration systems, design options and installation procedures. In addition, a 35 ton prototype is already operational at Fermilab and will take data with single-phase detector in early 2016. After the prototyping phase, the multi-kton detector will be constructed. After commissioning, it will detect and study neutrinos from a new beam from Fermilab. These cryostats will be engineered, constructed, commissioned, and qualified by an international engineering team. This contribution presents the on-going effort on the development of the cryostats and details the requirements and the current status of the design.
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performance and results of the lbne 35 ton membrane cryostat prototype
Physics Procedia, 2015Co-Authors: David Montanari, M. Adamowski, A Hahn, B Norris, J Reichenbacher, Russell Rucinski, J Stewart, T TopeAbstract:Abstract We report on the performance and commissioning of the first membrane cryostat to be used for scientific application. The Long Baseline Neutrino Experiment (LBNE) has designed and fabricated a membrane cryostat prototype in collaboration with Ishikawajima-Harima Heavy Industries Co., Ltd. (IHI). LBNE has designed and fabricated the supporting cryogenic system infrastructure and successfully commissioned and operated the first membrane cryostat. Original goals of the prototype are: to demonstrate the membrane cryostat technology in terms of thermal performance, feasibility for liquid argon and leak tightness; to demonstrate that we can remove all the impurities from the vessel and achieve the purity requirements in a membrane cryostat without evacuation; to demonstrate that we can achieve and maintain the purity requirements of the liquid argon using mol sieve and copper filters. The purity requirements of a large liquid argon detector such as LBNE are contaminants below 200 parts per trillion (ppt) Oxygen Equivalent. LBNE is planning the design and construction of a large liquid argon detector. This presentation will present requirements, design and construction of the LBNE 35 ton membrane cryostat prototype, and detail the commissioning and performance. The experience and results of this prototype are extremely important for the development of the LBNE detector.
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First scientific application of the membrane cryostat technology
2014Co-Authors: David Montanari, M. Adamowski, Bruce R. Baller, Robert K. Barger, Edward C. Chi, Ronald P. Davis, Bryan D. Johnson, Bob M. Kubinski, Ryan Mahoney, E. MccluskeyAbstract:We report on the design, fabrication, performance and commissioning of the first membrane cryostat to be used for scientific application. The Long Baseline Neutrino Experiment (LBNE) has designed and fabricated a membrane cryostat prototype in collaboration with IHI Corporation (IHI). Original goals of the prototype are: to demonstrate the membrane cryostat technology in terms of thermal performance, feasibility for liquid argon, and leak tightness; to demonstrate that we can remove all the impurities from the vessel and achieve the purity requirements in a membrane cryostat without evacuation and using only a controlled gaseous argon purge; to demonstrate that we can achieve and maintain the purity requirements of the liquid argon during filling, purification, and maintenance mode using mole sieve and copper filters from the Liquid Argon Purity Demonstrator (LAPD) R&D project. The purity requirements of a large liquid argon detector such as LBNE are contaminants below 200 parts per trillion Oxygen Equivalent. This paper gives the requirements, design, construction, and performance of the LBNE membrane cryostat prototype, with experience and results important to the development of the LBNE detector.
Stark David - One of the best experts on this subject based on the ideXlab platform.
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HI-MaNGA: Tracing the physics of the neutral and ionized ISM with the second data release
2021Co-Authors: Stark David, Masters, Karen L., Avila-reese Vladimir, Riffel Rogemar, Riffel Rogerio, Boardman, Nicholas Fraser, Zheng Zheng, Weijmans Anne-marie, Dillon Sean, Fielder CatherineAbstract:We present the second data release for the HI-MaNGA programme of HI follow-up observations for the SDSS-IV MaNGA survey. This release contains measurements for 3669 unique galaxies, combining 2108 Green Bank Telescope observations with an updated crossmatch of the MaNGA sample with the ALFALFA survey. We combine these data with MaNGA spectroscopic measurements to examine relationships between HI-to-stellar mass ratio (M_HI/M_*) and average ISM/star formation properties probed by optical emission lines. M_HI/M_* is very weakly correlated with the Equivalent width of Halpha, implying a loose connection between the instantaneous star formation rate and the HI reservoir, although the link between M_HI/M_* and star formation strengthens when averaged even over only moderate timescales (~30 Myrs). Galaxies with elevated HI depletion times have enhanced [OI]/Halpha and depressed Halpha surface brightness, consistent with more HI residing in a diffuse and/or shock heated phase which is less capable of condensing into molecular clouds. Of all optical lines, M_HI/M_* correlates most strongly with Oxygen Equivalent width, EW(O), which is likely a result of the existing correlation between M_HI/M_* and gas-phase metallicity. Residuals in the M_HI/M_*-EW(O) relation are again correlated with [OI]/Halpha and Halpha surface brightness, suggesting they are also driven by variations in the fraction of diffuse and/or shock-heated gas. We recover the strong anti-correlation between M_HI/M_* and gas-phase metallicity seen in previous studies. We also find a relationship between M_HI/M_* and [OI]/Halpha, suggesting that higher fractions of diffuse and/or shock-heated gas are more prevalent in gas-rich galaxies.Comment: Accepted for publication in MNRAS, 23 pages, 13 figures, catalog available at https://greenbankobservatory.org/science/gbt-surveys/hi-manga
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HI-MaNGA : tracing the physics of the neutral and ionized ISM with the second data release
'Oxford University Press (OUP)', 2021Co-Authors: Stark David, Masters, Karen L., Avila-reese Vladimir, Riffel Rogemar, Riffel Rogerio, Boardman, Nicholas Fraser, Zheng Zheng, Weijmans Anne-marie, Dillon Sean, Fielder CatherineAbstract:Funding: VAR acknowledges financial support from CONACyT grant 285721. ZZ acknowledges support by NSFC grant U1931110.Funding for the Sloan Digital Sky Survey IV has been provided by the Alfred P. Sloan Foundation, the U.S. Department of Energy Office of Science, and the Participating Institutions.We present the second data release for the HI-MaNGA programme of H I follow-up observations for the SDSS-IV MaNGA survey. This release contains measurements for 3669 unique galaxies, combining 2108 Green Bank Telescope observations with an updated crossmatch of the MaNGA sample with the ALFALFA survey. We combine these data with MaNGA spectroscopic measurements to examine relationships between H I-to-stellar mass ratio (MHI/M∗MHI/M∗) and average ISM/star formation properties probed by optical emission lines. MHI/M∗MHI/M∗ is very weakly correlated with the Equivalent width of Hα, implying a loose connection between the instantaneous star formation rate and the HI reservoir, although the link between MHI/M∗MHI/M∗ and star formation strengthens when averaged even over only moderate timescales (∼30 Myrs). Galaxies with elevated H I depletion times have enhanced [O I]/Hα and depressed Hα surface brightness, consistent with more H I residing in a diffuse and/or shock heated phase which is less capable of condensing into molecular clouds. Of all optical lines, MHI/M∗MHI/M∗ correlates most strongly with Oxygen Equivalent width, EW(O), which is likely a result of the existing correlation between MHI/M∗MHI/M∗ and gas-phase metallicity. Residuals in the MHI/M∗MHI/M∗−EW(O) relation are again correlated with [O I]/Hα and Hα surface brightness, suggesting they are also driven by variations in the fraction of diffuse and/or shock-heated gas. We recover the strong anti-correlation between MHI/M∗MHI/M∗ and gas-phase metallicity seen in previous studies. We also find a relationship between MHI/M∗MHI/M∗ and [O I]6302/Hα, suggesting that higher fractions of diffuse and/or shock-heated gas are more prevalent in gas-rich galaxies.PostprintPeer reviewe
