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橡胶技术与装备 1991年第6期17卷 51-55页

作者： Harold L.j.ckson richard j. gallagher jr 李贵君伍江涛化工部北京橡胶工业研究设计院

这种二元酯所具有的溶解力,人员安全性及循环使用性等特点,使之成为一种理想的清洗剂,可以用来清洗聚氨酯加工设备的搅拌机机头。使用浇铸聚氨酯加工设备时,需要对搅拌机机头进行定期清理和冲洗;长期以来,标准的清洗方法是先用泵将清洗... 详细信息

这种二元酯所具有的溶解力,人员安全性及循环使用性等特点,使之成为一种理想的清洗剂,可以用来清洗聚氨酯加工设备的搅拌机机头。使用浇铸聚氨酯加工设备时,需要对搅拌机机头进行定期清理和冲洗;长期以来,标准的清洗方法是先用泵将清洗剂注入。

关键词：聚氨酯设备清洗剂

For cervical cancer screening,which test is better,and forwhom?

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Gynecology and Obstetrics Clinical Medicine 2024年第2期4卷 77-78页

作者： Edward j.Mayeaux j. Yun Zhao USC School of Medicine Columbia Affiliate of Family and Preventive Medicine USC School of Medicine LibraryColumbiaSouth CarolinaUSA Peking University People's Hospital BeijingChina

In their j.nuary 2024 article,Vahteristo et al reported the results of their prospective randomised trial comparing human papillomavirus(HPV)-basedcervical cancer screening versus cytologyyscreening gin Southern *** study examined using high-risk HPV(hrHPV)-based cervical cancer screening in Finland,a country with awell-established,high-qualitycytology screening programme and a low incidence of cervical *** 236000 individuals were involved in this long-term follow-up of the Finnish randomised HPV screening *** authors calculated the cervical cancer incidence and mortality rate ratios using Poisson regression.

关键词： cervical cancer mortality

Development,validation,and transportability of several machine-learned,non-exercise-based VO_(2max)prediction models for older adults

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j.urnal of Sport and Health Science 2024年第5期13卷 611-620页

作者： Benj.min T.Schumacher Michael j.LaMonte Andrea Z.LaCroix Eleanor M.Simonsick Steven P.Hooker Humberto Parada j.. j.hn Bellettiere Arun Kumar Herbert Wertheim School of Public Health and Human Longevity Science University of California San DiegoLa JollaCA 92093USA Department of Epidemiology and Environmental Health School of Public Health and Health ProfessionsUniversity at BuffaloState University of New YorkBuffaloNY 14214USA Translational Gerontology Branch Intramural Research ProgramNational Institute on AgingNational Institutes of HealthBaltimoreMD 21225USA College of Health and Human Services San Diego State UniversitySan DiegoCA 92182USA Division of Epidemiology and Biostatistics School of Public HealthSan Diego State UniversitySan DiegoCA 92182USA University of California San Diego Moores Cancer Center La JollaCA 92093USA Computer Science and Engineering and Halicioglu Data Science Institute University of California San DiegoLa JollaCA 92093USA

Background:There exist few maximal oxygen uptake(VO_(2max))non-exercise-based prediction equations,fewer using machine learning(ML),and none specifically for older *** direct measurement of VO_(2max)is infeasible in large epidemiologic cohort studies,we sought to develop,validate,compare,and assess the transportability of several ML VO_(2max)prediction ***:The Baltimore Longitudinal Study of Aging(BLSA)participants with valid VO2_(max)tests were included(n=1080).Least absolute shrinkage and selection operator,linear-and tree-boosted extreme gradient boosting,random forest,and support vector machine(SVM)algorithms were trained to predict VO_(2max)*** developed these algorithms for:(a)the overall BLSA,(b)by sex,(c)using all BLSA variables,and(d)variables common in aging ***,we quantified the associations between measured and predicted VO_(2max)and ***:The age was 69.0±10.4 years(mean±SD)and the measured VO_(2max)was 21.6±5.9 mL/kg/*** absolute shrinkage and selection operator,linear-and tree-boosted extreme gradient boosting,random forest,and support vector machine yielded root mean squared errors of 3.4 mL/kg/min,3.6 mL/kg/min,3.4 mL/kg/min,3.6 mL/kg/min,and 3.5 mL/kg/min,*** quartiles of measured VO_(2max)showed an inverse gradient in mortality *** VO_(2max)variables yielded similar effect estimates but were not robust to ***:Measured VO_(2max)is a strong predictor of *** ML can improve the accuracy of prediction as compared to simpler approaches but estimates of association with mortality remain sensitive to *** studies should seek to reproduce these results so that VO_(2max),an important vital sign,can be more broadly studied as a modifiable target for promoting functional resiliency and healthy aging.

关键词： Cardiorespiratory fitness Prediction algorithms Epidemiology Mortality

100 case studies in pathophysiology / Harold j. Bruyere, j..

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亚热带森林植物的叶片和根系功能性状部分耦合但具有不同的群落性状分布格局

2009年

作者： Harold j. Bruyere j..

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j.urnal of Plant Ecology 2024年第1期17卷 94-110页

作者： Wenqi Luo Oscar j.Valverde-Barrantes Monique Weemstra j.mes F Cahill j. Zi Wang Dong He Yongfa Chen Chengj.n Chu Youshi Wang State Key Laboratory of Biocontrol School of Life Sciences/School of EcologySun Yat-sen UniversityGuangzhou 510275China International Center for Tropical Botany Department of Biological SciencesFlorida International UniversityMiamiFL 33199USA Department of Biological Sciences University of AlbertaEdmontonABT6G 2E9Canada School of Ecology and the Environment Xinjiang UniversityUrumqi 830046China

植物的生态过程依赖于叶片和根系的功能运行,但少有研究同时关注这两类性状在群落中的分布格局(CTD)。本文测定了广东亚热带森林44种共生木本植物的16个叶片和根系性状,旨在检验类比的叶片和根系性状是否耦合,是否沿类似的功能性状谱变... 详细信息

植物的生态过程依赖于叶片和根系的功能运行,但少有研究同时关注这两类性状在群落中的分布格局(CTD)。本文测定了广东亚热带森林44种共生木本植物的16个叶片和根系性状,旨在检验类比的叶片和根系性状是否耦合,是否沿类似的功能性状谱变异,是否表现出类似的CTD,其CTD和群落加权平均性状值(CWM)是否沿环境梯度表现出类似的响应。研究结果表明,叶片和根系性状变异的第一轴均呈显出由资源获取向资源保守变异的经济学谱,但叶片变异的第二轴主要由叶片碳含量表征,而根系变异的第二轴主要由反映菌根协作程度的根系粗细表征。类比的叶片和根系化学性状整体正相关,但形态性状的耦合程度较低。在群落水平上,叶片和根系性状第一轴的CWM均随海拔升高而变得更保守,而第二轴的变化则不一致。随土壤磷含量的降低或钾含量的升高,根系变得更细和在养分性状上更保守,而叶片性状无显著变化。当整合多维性状轴时,叶片性状呈发散格局,且随海拔、土壤磷和钾含量的增加呈收敛趋势;而根系性状呈收敛格局,但沿上述环境梯度呈发散趋势。该研究强调,叶片和根系性状与环境互作的差异可能导致不同的性状分布格局;植物可通过多样的地上和地下功能设计应对环境异质性。

关键词：性状维度群落构建叶片性状根系性状植物经济谱群落性状结构亚热带森林

Accounting information systems / Ulric j. Gelinas, j.., Steve G. Sutton. 5th ed.

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Older Adult Compendium of Physical Activities:Energy costs of human activities in adults aged 60 and older

2002年

作者： Ulric j. Gelinas j.. Steve G. Sutton.

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j.urnal of Sport and Health Science 2024年第1期13卷 13-17,F0003页

作者： Erik A.Willis Stephen D.Herrmann Mary Hastert Chelsea L.Kracht Tiago V.Barreira j.hn M.Schuna j.. Zhenghua Cai Minghui Quan Scott A.Conger Wendy j.Brown Barbara E.Ainsworth Center for Health Promotion and Disease Prevention University of North Carolina at Chapel HillChapel HillNC 27599USA Kansas Center for Metabolism and Obesity Research The University of Kansas Medical CenterKansas CityKS 66160USA Division of Physical Activity and Weight Management Department of Internal MedicineUniversity of Kansas Medical CenterKansas CityKS 66160USA Clinical Science Division Pennington Biomedical Research CenterBaton RougeLA 70808USA Exercise Science Department Syracuse UniversitySyracuseNY 13244USA School of Exercise&Sport Science Oregon State UniversityCorvallisOR 97331USA School of Exercise and Health Shanghai University of SportShanghai 200438China Department of Kinesiology Boise State UniversityBoiseID 83725USA School of Human Movement and Nutrition Sciences The University of QueenslandSt.LuciaQLD 4072Australia Faculty of Health Sciences and Medicine Bond UniversityGold CoastQLD 4229Australia College of Health Solutions Arizona State UniversityPhoenixAZ 85003USA

Purpose:To describe the development of a Compendium for estimating the energy costs of activities in adults>60 years(OA Compendium).Methods:Physical activities(PAs)and their metabolic equivalent of task(MET)values were obtained from a systematic search of studies published in 4 sport and exercise databases(PubMed,Embase,SPORTDiscus(EBSCOhost),and Scopus)and a review of articles included in the 2011 Adult Compendium that measured PA in older *** values were computed as the oxygen cost(VO_(2),mL/kg/min)during PA divided by 2.7 m L/kg/min(MET_(60+))to account for the lower resting metabolic rate in older ***:We identified 68 articles and extracted energy expenditure data on 427 *** these,we derived 99 unique Specific Activity codes with corresponding MET_(60+)values for older *** developed a website to present the OA Compendium MET_(60+)values:https://***:The OA Compendium uses data collected from adults>60 years for more accurate estimation of the energy cost of PAs in older *** is an accessible resource that will allow researchers,educators,and practitioners to find MET_(60+)values for older adults for use in PA research and practice.

关键词： Energy expenditure Exercise MET Older adults

Acid stress response in environmental and clinical strains of enteric bacteria

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Frontiers in Biology 2012年第6期7卷 495-505页

作者： Gabriel j. SWENSON j. STOCHASTIC Franklyn F. BOLANDER, j.. richard A. LONG Biological Sciences University of South Carolina Columbia SC 29208 USA Marine Science Program University of South Carolina Columbia SC 29208 USA Biology Department Paine College Augusta GA 30901 USA

The success of many enteric bacteria is hinged on the ability to tolerate environmental stress such as extreme acidity. The acid stress response （ASR） has been investigated in many enteric bacteria and has been shown to involve variable expression of a broad spectrum of genes involved in transcriptional regulation, metabolism, colonization and virulence; representing a linkage between acid tolerance and pathogenicity. Though the maj.rity of ASR studies have been conducted in laboratory conditions and from the perspective of pathogenicity, the role of environmental reservoirs on acid adaptation has recently emerged as an important aspect of pathogenic microbial ecology. This mini-review profiles ASR in three opportunistic enteric pathogens and synthesizes recent work pertaining to the study of this dynamic response.

关键词： acid stress response enteric bacteria microbial ecology transcriptional regulation virulence

Integrity and resilience in the face of multiple crises:commentary from Puerto Rico

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Forensic Sciences Research 2021年第3期6卷 316-319页

作者： richard j.Noel j. j.se A.Torres-Ruiz Department of Basic Sciences School of MedicinePonce Health Sciences UniversityPoncePRUSA Office of the Chancellor Ponce Health Sciences UniversityPoncePRUSA

Since 2010,the population of Puerto Rico has declined by 11.8%and is currently 3.3 million peo-ple[1].This worrisome trend is a result of a pleth-ora of island-wide challenges spanning financial difficulties,natural disasters,and *** over a decade of economic hardship and debt,incapacitating hurricanes,Irma and Maria,destroyed large swaths of the island in *** still recovering from that disaster,a magnitude 6.4 earthquake centered about 5 miles off the south-western coast on j.nuary 7,2020,destroying build-ings and roads in southwestern Puerto *** event,and subsequent aftershocks that continue until today,further aggravate an already stressed *** the mix,viral epidemics have brought fur-ther economic,social,and health-related *** Rico was the centre of the 2016-2017 Zika virus infections,representing over 85%of the US infections in 2016[2].

关键词： island disaster southwestern

Bacterial biota in reflux esophagitis and Barrett's esophagus

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World j.urnal of Gastroenterology 2005年第46期11卷 7277-7283页

作者： Zhiheng Pei Liying Yang richard M Peek j. Steven M Levine David T Pride Martin j.Blaser Departments of Pathology and Medicine New York University School of Medicine New York NY 10016 the United States of America and Department of Veterans Affairs New York Harbor Health System New York NY 10010United States Department of Pathology New York University School of Medicine New York NY 10016 United States j. Department of Medicine Vanderbilt University School of Medicine Nashville TN 37212United States Department of Medicine New York University School of Medicine New York NY 10016 United States Departments of Medicine and Microbiology New York University School of Medicine New York NY 10016United States Departments of Medicine and Microbiology New York University School of Medicine New York NY 10016the United States of America and Department of Veterans AffairsNew York Harbor Health System New York NY 10010 United States

AIM： To identify the bacterial flora in conditions such as Barrett＇s esophagus and reflux esophagitis to determine if they are similar to normal esophageal flora. METHODS： Using broad-range 16S rDNA PCR, esophageal biopsies were examined from 24 patients [9 with normal esophageal mucosa, 12 with gastroesophageal reflux disease （GERD）, and 3 with Barrett＇s esophagus]. Two separate broad-range PCR reactions were performed for each patient, and the resulting products were cloned. In one patient with Barrett＇s esophagus, 99 PCR clones were analyzed. RESULTS： Two separate clones were recovered from each patient （total = 48）, representing 24 different species, with 14 species homologous to known bacteria, 5 homologous to unidentified bacteria, and 5 were not homologous （〈97% identity） to any known bacterial 16S rDNA sequences. Seventeen species were found in the reflux esophagitis patients, 5 in the Barrett＇s esophagus patients, and 10 in normal esophagus patients. Further analysis concentrating on a single biopsy from an individual with Barrett＇s esophagus revealed the presence of 21 distinct bacterial species. Members of four phyla were represented, including Bacteroidetes, Firmicutes, Proteobacteria, and Actinobacteria. Microscopic examination of each biopsy demonstrated bacteria in intimate association with the distal esophageal epithelium, suggesting that the presence of these bacteria is not transitory. CONCLUSION： These findings provide evidence for a complex, residential bacterial population in esophageal reflux-related disorders. While much of this biota is present in the normal esophagus, more detailed comparisons may help identify potential disease associations.

关键词： Bacterial biota Esophagus 16S rDNA PCR