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RISS 인기검색어
- 검색키워드
- 저자 : ( Matthew S. Brown ) (검색결과 5 건)
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Brown, Matthew B.,Edwards, Matthew S.,Kim, Kwang Young The Korean Society of Phycology 2014 ALGAE Vol.29 No.3
As global warming continues over the coming century, marine organisms will experience a warmer, more acidic ocean. Although these stressors may behave antagonistically or synergistically and will impact organisms both directly (i.e., physiologically) and indirectly (i.e., through altered species interactions), few studies have examined the complexities of these effects in combination. To address these uncertainties, we examined the independent and combined effects of elevated temperature and $pCO_2$ on the physiology of the adult sporophyte stage of giant kelp, Macrocystis pyrifera, and the grazing of the purple sea urchin Strongylocentrotus purpuratus. While elevating $pCO_2$ alone had no effect on M. pyrifera growth or photosynthetic carbon uptake, elevating temperature alone resulted in a significant reduction in both. However, when M. pyrifera was grown under elevated temperature and $pCO_2$ together, growth and photosynthetic carbon uptake significantly increased relative to ambient conditions, suggesting an interaction of these factors on photosynthetic physiology. S. purpuratus held under future conditions generally exhibited reduced growth, and smaller gonads than urchins held under present-day conditions. However, urchins fed kelp grown under future conditions showed higher growth rates, partially ameliorating this effect. Feeding rates were variable over the course of the experiment, with only the first feeding rate experiment showing significantly lower rates for urchins held under future conditions. Together, these data suggest that M. pyrifera may benefit physiologically from a warmer, more acidic (i.e., higher $pCO_2$) ocean while S. purpuratus will likely be impacted negatively. Given that kelp-urchin interactions can be important to kelp forest structure, changes to either of these populations may have serious consequences for many coastal environments.
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Matthew B. Brown,Matthew S. Edwards,Kwang Young Kim 한국조류학회I 2014 ALGAE Vol.29 No.3
As global warming continues over the coming century, marine organisms will experience a warmer, more acidic ocean. Although these stressors may behave antagonistically or synergistically and will impact organisms both directly (i.e., physiologically) and indirectly (i.e., through altered species interactions), few studies have examined the complexities of these effects in combination. To address these uncertainties, we examined the independent and combined effects of elevated temperature and pCO2 on the physiology of the adult sporophyte stage of giant kelp, Macrocystis pyrifera, and the grazing of the purple sea urchin Strongylocentrotus purpuratus. While elevating pCO2 alone had no effect on M. pyrifera growth or photosynthetic carbon uptake, elevating temperature alone resulted in a significant reduction in both. However, when M. pyrifera was grown under elevated temperature and pCO2 together, growth and photosynthetic carbon uptake significantly increased relative to ambient conditions, suggesting an interaction of these factors on photosynthetic physiology. S. purpuratus held under future conditions generally exhibited reduced growth, and smaller gonads than urchins held under present-day conditions. However, urchins fed kelp grown under future conditions showed higher growth rates, partially ameliorating this effect. Feeding rates were variable over the course of the experiment, with only the first feeding rate experiment showing significantly lower rates for urchins held under future conditions. Together, these data suggest that M. pyrifera may benefit physiologically from a warmer, more acidic (i.e., higher pCO2) ocean while S. purpuratus will likely be impacted negatively. Given that kelp-urchin interactions can be important to kelp forest structure, changes to either of these populations may have serious consequences for many coastal environments.
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Bulk properties of the van der Waals hard ferromagnet <tex> $ \mathrm{VI}_{3}$</tex>
Son, Suhan,Coak, Matthew J.,Lee, Nahyun,Kim, Jonghyeon,Kim, Tae Yun,Hamidov, Hayrullo,Cho, Hwanbeom,Liu, Cheng,Jarvis, David M.,Brown, Philip A. C.,Kim, Jae Hoon,Park, Cheol-Hwan,Khomskii, Daniel I.,S American Physical Society 2019 Physical Review B Vol.99 No.4
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The Impact of the Chinese Basketball Association’s Asian-born Player Policy on Competitive Balance
Hua Gong,Nicholas M. Watanabe,Matthew T. Brown,Mark S. Nagel 글로벌지식마케팅경영학회 2019 Journal of Global Sport Management Vol.4 No.2
This study explores the relationship between talent pool size and competitive balance in the Chinese Basketball Association (CBA). In particular, the focus of this analysis is on the impact of the Asian-born player policy, which gives CBA teams at the bottom of the standings the ability to sign an additional talented player. Prior theorization suggests that allowing weaker teams to sign additional talent—while also constraining other teams—should reduce the talent gap between teams, and hence improve competitive balance. Based on this, both within-season and cross-season competitive balance metrics were utilized in interrupted time series regressions to estimate whether this policy had an impact on parity. The results find that while the Asian-born player policy did not improve within-season competitive balance, it did lead to better reordering of where teams finished in the final standings. Overall, the findings have important implications in regards to how policy can impact competitive balance.
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( Ju Hyun Oh ),( Grace Hyun J. Kim ),( David W Dai ),( S Sam Weigt ),( Jonathan G Goldin ),( Lila Pourzand ),( Jooae Choe ),( Fereidoun Abtin ),( Matthew S. Brown ),( Pangyu Teng ),( Jin Woo Song ) 대한결핵 및 호흡기학회 2021 대한결핵 및 호흡기학회 추계학술대회 초록집 Vol.129 No.-
Background Interstitial lung disease (ILD) includes a heterogeneous group of disease entities. Idiopathic pulmonary fibrosis (IPF) is ultimately fatal, and accurate diagnosis of IPF is critical to clinical decision making. Visual interpretation of chest high resolution CT (HRCT) is subjective and has limited reproducibility, especially with early disease. So we have previously developed attention-gated deep learning algorithm to diagnosis IPF and machine learning to predict IPF progression. The overall aim of IS-IPF is to collect the data from two centers of excellence and evaluate the robustness of the algorithm. We present the preliminary data of the patients studied following disease classification by the multidisciplinary review committees (MDCs) at UCLA and Asan Medical Center (AMC). Methods The IS-IPF study plans to include 234 IPF and 266 non-IPF cases from two large ILD centers (UCLA and AMC). Eligible patients were evaluated in ILD MDC, were >18 years old, had a HRCT, pulmonary function testing, and a committee diagnosis of IPF or non-IPF. Relevant demographic information was collected from the medical record. Results Total 185 IPF and 266 non-IPF patients’ HRCT images have been collected in the IS-IPF study. By center, 51 IPF and 133 non- IPF patients’ HRCT were collected from UCLA, and 134 IPF and 133 non-IPF patients’ HRCT were collected from AMC. On MDC diagnosis, non-IPF cohorts consisted of 33% hypersensitivity pneumonitis, and 67% other connective tissue disease-ILD. Mean age was 61 years (63 IPF and 58 non-IPF), and 63% were male (82% IPF and 57 % non-IPF). Up to date, the predicted FVC was 74.7% and the predicted DLco was 61.6 % in the IPF cohort. Data collection is on-going. Conclusions These well-characterized cohorts will be used to evaluate HRCT image signatures for distinguishing IPF from other ILD, and predicting patient-specific IPF progression within 2 years of diagnosis.
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