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Changes in physical activity and sleep following the COVID-19 pandemic on a university campus:Perception versus reality

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Sports Medicine and Health Science 2024年第3期6卷 246-251页

作者： Bryce T.Daniels Samantha Robinson Ivan Vargas jamie I.Baum Erin K.Howie University of Arkansas FayettevilleARUnited States Rush University Medical Center ChicagoIllinoisUnited States1 University of Arkansas System Division of Agriculture FayettevilleARUnited States

It has been hypothesized that key lifestyle behaviors of physical activity and sleep worsened in response to the Coronavirus disease(COVID-19)***,there have been inconsistencies in findings of changes in these key lifestyle behaviors across populations likely due to the wide variety of assessment *** purpose of the study was to compare physical activity and sleep before and after the COVID-19 pandemic using accelerometers and self-reported behaviors.A longitudinal follow-up was conducted on students,faculty,and staff at a university campus in the United *** the periods before March 2020(covering the academic years of 2018–2019 or 2019–2020)and again in April–June 2021,participants completed surveys to evaluate their physical activity and sleep behaviors and wore an accelerometer.A total of 44 participants completed the survey at both timepoints and 32 completed accelerometer assessment at both ***-seven percent of participants reported a perceived decline in physical activity,while 30%reported a worsening in *** selfreported data,overall physical activity did not change,but there was a decrease in active transport(p<0.001)and increase in domestic physical activity(p?0.012).Sleep quality decreased as evidenced by an increase in Pittsburgh Sleep Quality Index scores(p?0.045).There were no changes in accelerometer measured physical activity or *** were no changes in physical or mental *** perceptions of physical activity declined from prior to the COVID-19 pandemic,there were no changes in device-measured physical activity,and changes in self-reported physical activity differed by domain.

关键词： Movement Longitudinal Measurement

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Crouzon syndrome mouse model exhibits cartilage hyperproliferation and defective segmentation in the developing trachea

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Science China(Life Sciences) 2019年第10期62卷 1375-1380页

作者： Elizabeth A. Hines Mary-Kayt N. Jones Julie F. Harvey Chad Perlyn David M. Ornitz Xin Sun jamie M. Verheyden Laboratory of Genetics University of WisconsinMadisonWI 53706USA Department of Surgery Florida International University College of MedicineMiamiFL 33199USA Department of Developmental Biology Washington University School of MedicineSt. LouisMO 63110USA Department of Pediatrics University of California-San DiegoLa JollaCA 92093USA

Crouzon syndrome is the result of a gain-of-function point mutation in FGFR2. Mimicking the human mutation, a mouse model of Crouzon syndrome(Fgfr2342Y) recapitulates patient deformities, including failed tracheal cartilage segmentation, resulting in a cartilaginous sleeve in the homozygous mutants. We found that the Fgfr2C342Y/C^342Y mutants exhibited an increase in chondrocytes prior to segmentation. This increase is due at least in part to over proliferation. Genetic ablation of chondrocytes in the mutant led to restoration of segmentation in the lateral but not central portion of the trachea. These results suggest that in the Fgfr2C342Y/C342Y mutants, increased cartilage cell proliferation precedes and contributes to the disruption of cartilage segmentation in the developing trachea.

关键词： trachea lung mouse development

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地层位移引起建筑物变形特性分析

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土木工程学报 2011年第S1期44卷 135-141,229页

作者：韩煊李宁 jamie R.Standing 北京市勘察设计研究院有限公司北京100038 西安理工大学陕西西安710048 帝国理工学院

城市深基坑开挖或地铁隧道掘进会引起附近建筑物或其他结构的变形,对建筑物变形特性的研究对于建立符合实际的变形预测方法和变形风险预估体系有着至关重要的实际意义。长期以来对由于地层位移引起的建筑物变形特点的研究尚比较少,特别... 详细信息

城市深基坑开挖或地铁隧道掘进会引起附近建筑物或其他结构的变形,对建筑物变形特性的研究对于建立符合实际的变形预测方法和变形风险预估体系有着至关重要的实际意义。长期以来对由于地层位移引起的建筑物变形特点的研究尚比较少,特别是在岩土工程的相关研究范畴。在理论分析的基础上,提出一个判定建筑物变形特性(弯曲或剪切)的方法,并提出"弯曲变形率"指标以量化判定结构物变形特性。通过对伦敦地区两栋建筑物实际变形数据的研究,发现建筑物基本以剪切变形为主。在后续的分析中,进一步说明在一般情况下由于开挖引起邻近多层或高层建筑物的结构变形均以剪切变形为主,这与一般在分析和计算中假定结构主要以弯曲为主不同。基于此,认为结构的剪切刚度是其变形的主要控制因素,而非弯曲刚度。最后基于建筑物实测变形数据反算得到实际建筑物的结构刚度比E/G,由此获得对建筑物的实际变形特性更加深入的认识。

关键词：隧道掘进深基坑开挖地层位移结构变形结构弯曲结构剪切结构损坏评估

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New Methods and Synthetic Applications of Asymmetric Nitrogen Transfer

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Chinese Journal of Chemistry 2005年第9期23卷 1270-1272页

作者： ARMSTRONG, Alan EDMONDS, lan COOKE, Richard S. SHANAHAN, Stephen E. KNIGHT, jamie D. CUMMING, Graham R. Department of Chemistry Imperial College London South Kensington London SW7 2AZ UK

Structure/reactivity relationships of N-alkoxycarbonyl- and N-carboxamidooxaziridines are explored, and conditions are discovered for the efficient amination of sulfides and primary amines. Reactions of these oxaziridines with alkenes are also examined, and lead to interesting new heteroatom transfer reaction products. Finally, the aminative rearrangement of 2-alkoxydihydropyrans leads to a useful stereocontrolled synthesis of pyrrolidines which can undergo synthetic manipulations to give [2.2.1 ]- and [3.2.1 ]-azabicycles.

关键词： N-alkoxycarbonyl N-carboxamidooxazinidine amination

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Twenty Toads

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小学生时代（大嘴英语） 2020年第11期 24-26页

作者： Charlotte Gunnufson jamie Smith(图) 不详

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单细胞ICP-MS技术分析水中藻类的纳米颗粒摄入

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环境化学 2016年第10期35卷 2223-2225页

作者： Ruth Merrifield jamie Lead Chady Stephan Center for Environmental Nanoscience and Risk University of South Carolina SC 29208 USA PerkinElmer Woodbridge On 4H1L8 Canada

观测和研究细胞对于元素离子和纳米颗粒的摄入,对于人类健康和环境安全都具有非常重要的意义.本文通过利用ICP-MS配备的单细胞检测技术,对待测藻类摄入元素离子和纳米颗粒的行为进行了观察和研究,探讨了不同培养液浓度、曝光时间对于单... 详细信息

观测和研究细胞对于元素离子和纳米颗粒的摄入,对于人类健康和环境安全都具有非常重要的意义.本文通过利用ICP-MS配备的单细胞检测技术,对待测藻类摄入元素离子和纳米颗粒的行为进行了观察和研究,探讨了不同培养液浓度、曝光时间对于单细胞中离子和纳米颗粒含量的影响,以及细胞分裂过程对于摄入行为的影响.

关键词： ICP-MS 藻类纳米颗粒

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Non-crossing Quantile Regression Neural Network as a Calibration Tool for Ensemble Weather Forecasts

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Advances in Atmospheric Sciences 2024年第7期41卷 1417-1437页

作者： Mengmeng SONG Dazhi YANG Sebastian LERCH Xiang'ao XIA Gokhan Mert YAGLI jamie M.BRIGHT Yanbo SHEN Bai LIU Xingli LIU Martin Janos MAYER School of Electrical Engineering and Automation Harbin Institute of TechnologyHarbin150001China Heidelberg Institute for Theoretical Studies Schloss-Wolfsbrunnenweg 3569118HeidelbergGermany Chair of Statistical Methods and Econometrics Karlsruhe Institute of Technology(KIT)Bluecherstr.1776185KarlsruheGermany Key Laboratory of Middle Atmosphere and Global Environment Observation Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing100029China Solar Energy Research Institute of Singapore(SERIS) National University of Singapore(NUS)Singapore117574Singapore UK Power Networks LondonSE61NPUK China Meteorological Administration Beijing100081China Heilongjiang Meteorological Bureau Harbin150001China Department of Energy Engineering Faculty of Mechanical EngineeringBudapest University of Technology and EconomicsMűegyetem rkp.3H-1111BudapestHungary

Despite the maturity of ensemble numerical weather prediction(NWP),the resulting forecasts are still,more often than not,*** such,forecast calibration tools have become *** those tools,quantile regression(QR)is highly competitive in terms of both flexibility and predictive ***,a long-standing problem of QR is quantile crossing,which greatly limits the interpretability of QR-calibrated *** this point,this study proposes a non-crossing quantile regression neural network(NCQRNN),for calibrating ensemble NWP forecasts into a set of reliable quantile forecasts without *** overarching design principle of NCQRNN is to add on top of the conventional QRNN structure another hidden layer,which imposes a non-decreasing mapping between the combined output from nodes of the last hidden layer to the nodes of the output layer,through a triangular weight matrix with positive *** empirical part of the work considers a solar irradiance case study,in which four years of ensemble irradiance forecasts at seven locations,issued by the European Centre for Medium-Range Weather Forecasts,are calibrated via NCQRNN,as well as via an eclectic mix of benchmarking models,ranging from the naïve climatology to the state-of-the-art deep-learning and other non-crossing *** and stringent forecast verification suggests that the forecasts post-processed via NCQRNN attain the maximum sharpness subject to calibration,amongst all ***,the proposed conception to resolve quantile crossing is remarkably simple yet general,and thus has broad applicability as it can be integrated with many shallow-and deep-learning-based neural networks.

关键词： ensemble weather forecasting forecast calibration non-crossing quantile regression neural network CORP reliability diagram post-processing

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Beyond Bloom’s: Students’ Perception of Bloom’s Taxonomy and its Convolution with Cognitive Load

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Journal of Psychological Research 2019年第1期1卷 24-32页

作者： Andrea JPhillips Jace CBriggs jamie Lee Jensen Department of Biology 4102 LSBBrigham Young UniversityProvoUT 84602

Bloom’s taxonomy is widely used in educational research to categorize the cognitive skills required to answer exam *** this study,we analyzed how students categorize exam questions(high-level question or low-level question,)gathered data as to their rationale for categorization,and compared their categorizations to those of *** found that students consistently rank high-level questions *** analyzed student reasons for their categorizations,and found that for many of the incorrectly categorized questions the students referred to reasons related to Cognitive Load *** shows that cognitive load prevents students from accurately assessing the cognitive level of an exam ***,extra cognitive load in exam questions may prevent those questions from accurately measuring the skills and knowledge of the *** points to the need for instructors to eliminate cognitive load from their exams.

关键词： Bloom’s taxonomy Cognitive load theory Student perception HOCS LOCS

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Enhanced recovery after surgery pathway: The use of fascia iliaca blocks causes delayed ambulation after total hip arthroplasty

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World Journal of Anesthesiology 2019年第2期8卷 13-18页

作者： jamie-Lee Metesky Junping Chen Meg Rosenblatt Anesthesia Department Mount Sinai St.Luke’s and West Hospitals

BACKGROUND Fascia iliaca compartment blocks(FIBs) have been used to provide postoperative analgesia after total hip arthroplasty(THA). However, evidence of their efficacy remains limited. While pain control appears to be satisfactory, quadriceps weakness may be an untoward consequence of the block. Prior studies have shown femoral nerve blocks and fascia iliaca blocks as being superior for pain control and ambulation following THA when compared to standard therapy of parenteral pain control. However, most studies allowed patients to ambulate on post-operative day(POD) 2-3, whereas new guidelines suggest ambulation on POD 0 is *** To determine the effect of FIB after THA in patients participating in an enhanced recovery after surgery(ERAS) *** We conducted a retrospective analysis of patients undergoing THA with or without FICBs and their ability to ambulate on POD 0 in accordance with ERAS protocol. Perioperative data was collected on 39 patients who underwent *** data, anesthesia data, and ambulatory outcomes were *** Twenty patients had FIBs placed at the conclusion of the procedure, while 19 did not receive a block. Of the 20 patients with FIB, only 1 patient was able to ambulate. Of the 19 patients without FIB blocks, 17 were able to ambulate. All patients worked with physical therapy 2 h after arriving in the post-anesthesia care unit on POD *** Our data suggests an association between FIB and delayed ambulation in the immediate post-operative period.

关键词： Fascia iliaca Total hip arthroplasty Enhanced recovery after surgery protocol Deep vein thrombus Post-operative

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Elevated Human Chorionic Gonadotrophin Due to Pancreatic Cancer

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Open Journal of Anesthesiology 2012年第4期2卷 178-182页

作者： Asha Manohar Erika Werner jamie Murphy Anesthesia and Critical Care Medicine The Johns Hopkins Hospital Baltimore MD USA Department of Gynecology and Obstetrics The Johns Hopkins Hospital Baltimore MD USA

Preoperative pregnancy testing is common practice among anesthesiologists. Little is re-ported in anesthesia literature on causes other than pregnancy for elevated human chorionic go-nadotrophin (hCG) levels. Among these causes is hCG secretion by tumors. This is a report of a female with pancreatic cancer that presented for a Whipple procedure, who on routine pregnancy testing was found to have an elevated hCG level. This unexpected result led to significant delay and undue stress for the patient. After determining pregnancy was unlikely and multiple poorly differentiated metastatic masses were discovered, it was decided that the most likely cause of her hCG levels was cancer. Multiple cancers have been reported to secrete hCG, and more specifically β hCG [1]. Studies of elevated hCG in pancreatic cancer patients report an incidence of 40% - 56% [2,3]. Serum β hCG testing done prior to the date of surgery (DOS) in cancer pa- tients that are pre- or perimenopausal should be considered as it would allow time for a more definitive pregnancy evaluation to be performed.

关键词： Pregnancy Test Cancer β hCG

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