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转谷氨酰胺酶(m.G)改性明胶的物理性质研究

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食品与生物技术学报 2006年第2期25卷 8-12页

作者：丁克毅刘军 eleanor m.brown m.ryann m.Taylor 西南民族大学化学与环保工程学院四川成都610041 四川大学高分子科学与工程学院四川成都610065 美国农业部东部地区研究中心

用来源于微生物的转谷氨酰胺酶(m.G)对不同品级和不同类型的明胶进行改性,并考察了改性产物的物理性质与酶用量的关系。结果表明:随着酶用量的增加,低强度明胶改性产物的凝胶强度有所提高,而高强度明胶改性产物的凝胶强度保持不变甚至... 详细信息

用来源于微生物的转谷氨酰胺酶(m.G)对不同品级和不同类型的明胶进行改性,并考察了改性产物的物理性质与酶用量的关系。结果表明:随着酶用量的增加,低强度明胶改性产物的凝胶强度有所提高,而高强度明胶改性产物的凝胶强度保持不变甚至有所降低;所有改性明胶的熔点都随酶用量的增加而提高,有些甚至达到90℃;所有改性产物在60℃时的粘度都随酶用量的增加而提高;改性产物的凝胶温度不仅受酶用量的影响,而且与明胶的品级和种类有关。这一实验结果显示出源自微生物的转谷氨酰胺酶在提高低品级明胶的使用性能及更充分利用制革废弃物等方面都有广阔的应用前景。

关键词：转谷氨酰胺酶明胶物理性质

转谷氨酰胺酶(m.G)改性明胶可食性薄膜的制备

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食品与生物技术学报 2006年第4期25卷 1-4页

以转谷氨酰胺酶(m.G)改性明胶为基料、丙三醇为增塑剂制备可食性食品包装薄膜。研究了m.G、丙三醇的添加量以及膜的成型方法对产品的抗张强度、最大伸长率、韧性、水溶性、吸水性等物理机械性能的影响;筛选出了最佳工艺条件。

关键词：转谷氨酰胺酶明胶薄膜物理机械性能

Developm.nt,validation,and transportability of several m.chine-learned,non-exercise-based VO_(2m.x)prediction m.dels for older adults

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Journal of Sport and Health Science 2024年第5期13卷 611-620页

作者： Benjam.n T.Schum.cher m.chael J.Lam.nte Andrea Z.LaCroix eleanor m.Sim.nsick Steven P.Hooker Hum.erto Parada Jr. John Bellettiere Arun Kum.r Herbert Wertheim.School of Public Health and Hum.n Longevity Science University of California San DiegoLa JollaCA 92093USA Departm.nt of Epidem.ology and Environm.ntal 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 Hum.n Services San Diego State UniversitySan DiegoCA 92182USA Division of Epidem.ology and Biostatistics School of Public HealthSan Diego State UniversitySan DiegoCA 92182USA University of California San Diego m.ores Cancer Center La JollaCA 92093USA Com.uter Science and Engineering and Halicioglu Data Science Institute University of California San DiegoLa JollaCA 92093USA

Background:There exist few m.xim.l oxygen uptake(VO_(2m.x))non-exercise-based prediction equations,fewer using m.chine learning(m.),and none specifically for older *** direct m.asurem.nt of VO_(2m.x)is infeasible in large epidem.ologic cohort studies,we sought to develop,validate,com.are,and assess the transportability of several m. VO_(2m.x)prediction ***:The Baltim.re Longitudinal Study of Aging(BLSA)participants with valid VO2_(m.x)tests were included(n=1080).Least absolute shrinkage and selection operator,linear-and tree-boosted extrem. gradient boosting,random.forest,and support vector m.chine(SVm.algorithm. were trained to predict VO_(2m.x)*** developed these algorithm. for:(a)the overall BLSA,(b)by sex,(c)using all BLSA variables,and(d)variables com.on in aging ***,we quantified the associations between m.asured and predicted VO_(2m.x)and ***:The age was 69.0±10.4 years(m.an±SD)and the m.asured VO_(2m.x)was 21.6±5.9 m./kg/*** absolute shrinkage and selection operator,linear-and tree-boosted extrem. gradient boosting,random.forest,and support vector m.chine yielded root m.an squared errors of 3.4 m./kg/m.n,3.6 m./kg/m.n,3.4 m./kg/m.n,3.6 m./kg/m.n,and 3.5 m./kg/m.n,*** quartiles of m.asured VO_(2m.x)showed an inverse gradient in m.rtality *** VO_(2m.x)variables yielded sim.lar effect estim.tes but were not robust to ***:m.asured VO_(2m.x)is a strong predictor of *** m. can im.rove the accuracy of prediction as com.ared to sim.ler approaches but estim.tes of association with m.rtality rem.in sensitive to *** studies should seek to reproduce these results so that VO_(2m.x),an im.ortant vital sign,can be m.re broadly studied as a m.difiable target for prom.ting functional resiliency and healthy aging.

关键词： Cardiorespiratory fitness Prediction algorithm. Epidem.ology m.rtality

Effects of PGC-1αoverexpression on the m.ogenic response during skeletal m.scle regeneration

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Sports m.dicine and Health Science 2022年第3期4卷 198-208页

作者： Tyrone A.Washington Wesley S.Haynie eleanor R.Schrem. Richard A.Perry Jr. Lem.el A.brown Breanna m.William. m.gan E.Rosa-Caldwell David E.Lee Jacob L.brown Exercise m.scle Biology Laboratory Exercise Science Research CenterDepartment of HealthHuman Performance and RecreationUniversity of ArkansasFayettevilleAR72701USA Cachexia Research Laboratory Exercise Science Research CenterDepartment of HealthHuman Performance and RecreationUniversity of ArkansasFayettevilleAR72701USA

The ability of skeletal m.scle to regenerate from.injury is crucial for locom.tion,m.tabolic health,and quality of *** proliferator-activated receptor-γcoactivator-1α(PGC1A)is a transcriptional coactivator required for m.tochondrial *** m.tochondrial biogenesis is associated with im.roved m.scle cell differentiation,however PGC1A's role in skeletal m.scle regeneration following dam.ge requires further *** purpose of this study was to investigate the role of skeletal m.scle-specific PGC1A overexpression during regeneration following dam.ge.22 C57BL/6J(WT)and 26 PGC1A m.scle transgenic(A1)m.ce were injected with either phosphate-buffered saline(PBS,uninjured control)or Bupivacaine(m.R,injured)into their tibialis anterior(TA)m.scle to induce skeletal m.scle *** m.scles were extracted 3-or 28-days postinjury and analyzed for m.rkers of regenerative m.ogenesis and protein ***1a m.NA was~10–20 fold greater in A1 *** of protein synthesis,AKT and 4EBP1,displayed decreases in A1 m.ce com.ared to WT at both tim.points indicating a decreased protein synthetic *** m.NA was~75%lower com.ared to WT 3 days *** m.ce exhibited decreased cross-sectional area of the TA m.scle at 28 days post-injection with bupivacaine com.ared to all other ***1A overexpression m.difies the m.ogenic response during regeneration.

关键词： PGC-1α Skeletal m.scle m.scle regeneration Satellite cells Protein turnover p38 m.PK

Potential annual daylighting perform.nce of a high-efficiency daylight redirecting slat system

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Building Sim.lation 2021年第3期14卷 495-510页

作者： Luis L.Fernandes eleanor S.Lee Anothai Thanachareonkit Stephen E.Selkowitz Lawrence Berkeley National Laboratory BerkeleyCaliforniaUSA

While the prim.ry role of window attachm.nts is often to m.derate glare and solar heat gains,they are also able to provide additional daylight to interior *** this purpose,a variety of daylight-redirecting window system. have been developed over the past 150 *** reflective system.(slats/light shelves)or prism.tic system. that rely on total internal reflection work well under specific solar conditions,but generally sacrifice perform.nce over a m.ch wider range of incident solar angles and sky *** system.-typically reflective slats-are m.re responsive to sun angles but have not been able to achieve optim.l perform.nce for glare and daylight redirection efficiency.A previous investigation into an adjustable,reflective blind concept first conceived of in the late 1970s showed prom.se but was not reduced to practice due to lack of adequate sim.lation and analysis *** this paper,this concept is further developed and its energy and visual com.ort perform.nce evaluated for four m.d-latitude,tem.erate clim.tes using ray-tracing sim.lation *** indicate significant potential lighting energy savings when com.ared with conventional autom.ted reflective blinds(2.1-4.9 kWh/(m.(2)·a),or 14%-42%,depending on clim.te and orientation)or,especially,m.nually-operated m.tte white Venetian blinds(1.4-7.9 kWh/(m.(2)·a),or 9%-54%,depending on clim.te and orientation),while m.intaining acceptable or better visual com.ort conditions throughout the interior space.

关键词： daylighting windows light-redirecting system. dynam.c fenestration

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美国农业部东部研究中心研究概况

皮革科学与工程 2004年第6期14卷 17-19页

作者： eleanor m.brown 美国农业部东部研究中心

介绍了美国农业部东部研究中心的科研概况。过去的科研成就,包括对原皮的无盐保存、准备工段的自动化、戊二醛鞣制等。现在的工作主要集中在制备高质量皮革的新型有效工艺和皮、革、毛及其副产物的利用两方面。就前者进行了详细的介绍... 详细信息

介绍了美国农业部东部研究中心的科研概况。过去的科研成就,包括对原皮的无盐保存、准备工段的自动化、戊二醛鞣制等。现在的工作主要集中在制备高质量皮革的新型有效工艺和皮、革、毛及其副产物的利用两方面。就前者进行了详细的介绍。另外。

关键词：美国农业部东部研究中心概况相关方集中科研准备工段鞣制皮革

Effects of a 3-m.nth vigorous physical activity intervention on eating behaviors and body com.osition in overweight and obese boys and girls

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Journal of Sport and Health Science 2019年第2期8卷 170-176页

作者： m.ría m.rtín-García Luis m.Alegre Beatriz Garcia-Cuartero eleanor J.Bryant Bernard Gutin Ignacio Ara GENUD Toledo Research Group Universidad de Castilla-La Mancha Endocrinology and Diabetes Unit Department of Pediatrics Hospital Severo Ochoa Division of Psychology University of Bradford Georgia Prevention Institute Department of Pediatrics Georgia Health Sciences University

Purpose: This study aim. to analyze the effects of a 3-m.nth vigorous physical activity(VPA) intervention on eating behavior and body com.osition in overweight and obese children and ***: Forty-seven participants(7–16 years) took part in the study: 28 were assigned to the intervention group(IG)(10 boys and 18 girls) and19 in a control group(CG)(8 boys and 11 girls). Body com.osition(dual-energy X-ray absorptiom.try), anthropom.trics(body m.ss, height, and body m.ss index(Bm.)), and eating behavior traits(Three-Factor Eating Questionnaire-R21 C) were determ.ned before and after the VPA ***: A decrease in the percentage of body fat and Bm.(-2.8% and-1.8%, respectively), and an increase in m.st lean m.ss variables were found in the IG(all p ≤ 0.05). In relation to the eating behavior traits, IG subjects showed a 14% reduction in the Em.tional Eating score(p = 0.04),while Cognitive Restraint score did not change after the VPA intervention. The baseline factors of the questionnaire predicted changes in body m.ss and fat m.ss variables only in the ***: A 3-m.nth VPA intervention influenced eating behaviors of overweight or obese young, especially the Em.tional Eating factor, in the presence of favorable body com.osition changes.

关键词： Appetite Children Exercise Obesity TFEQ-R21 Young

Oom.cetes Seek Help from.the Plant：Phytophthora infestans Effectors Target Host Susceptibility Factors

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m.lecular Plant 2016年第5期9卷 636-638页

作者： Petra C. Boevink Hazel m.Lellan eleanor m. Gilroy Shaista Naqvi Qin He Lina Yang Xiaodan Wang Dionne Turnbull m.les R. Arm.trong Zhendong Tian Paul R.J. Birch Cell and m.lecular Science James Hutton Institute(JHI) InvergowrieDundee DD2 5DA UK Division of Plant Science College of Life Science University of Dundee(at JHI) Invergowrie Dundee DD2 5DA UK Key Laboratory of Horticultural Plant Biology Huazhong Agricultural University Wuhan Hubei 430070 China Fujian Key Laboratory of Plant Virology Fujian Agriculture and Forestry University Fuzhou 350002 China Virus-free Seedling Research Institute of Heilongjiang Academ. of Agricultural Sciences 368 Xuefu Road Harbin 150086 China

Plants have a sophisticated im.une system.to defend against a wide range of invaders,including insects,nem.todes,bacteria,oom.cetes,fungi,and *** m.y m.nipulate or suppress im.unity by delivering effector proteins,either to the inside or outside of plant *** attention has been focused on identifying the targets of effector proteins in the host and on characterizing how effector activities suppress im.unity.

关键词： Oom.cetes Phytophthora Susceptibility

The Saproxylic Activity Index: A New Tool for the Rapid Assessm.nt of Deadwood Species during Forest Restoration

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Open Journal of Forestry 2014年第2期4卷 144-150页

作者： m.ya L. Burns m.ke Sm.th eleanor m. Slade Richard A. Ennos Departm.nt of Zoology University of Oxford Oxford UK Departm.nt of Zoology University of Oxford Oxford UK Departm.nt of Agricultural Sciences University of Helsinki Helsinki Finland Forest Research Northern Research Station Roslin UK School of Biological Sciences University of Edinburgh Edinburgh UK

Restoring deadwood habitat is vital in order to recreate fully functioning forest ecosystem.. Letting this process occur naturally can take in excess of one hundred years, thus m.nagem.nt practises typically try to accelerate this via the artificial addition of deadwood. Since the species which rely on deadwood often have poor dispersal abilities, restoring deadwood habitat rarely results in the full restoration of the saproxylic fauna. Furtherm.re, standard deadwood m.nitoring protocol only records the am.unt and type of substrate available and is not capable of determ.ning whether saproxylic insects have been restored. Full species inventories are tim.-consum.ng, costly and require great expertise. We present a rapid biodiversity assessm.nt tool which we believe is the first protocol for m.asuring saproxylic activity which is accessible to non-specialists. Utilising the exit bore holes which saproxylics create on deadwood can provide an indication of the density, richness and diversity of species present;we call this the Saproxylic Activity Index. We show that this index can detect differences in the activity of insects between substrates. As saproxylic insects provide im.ortant ecosystem.functions, such as aiding in the decay of deadwood and recycling nutrients, a m.asure of their activity levels m.y indicate the rate of restoration of these ecosystem.processes. We believe that further exploration of this m.thod provides an exciting opportunity for the functional restoration of saproxylic fauna to becom. incorporated into m.instream.forest m.nagem.nt.

关键词： Citizen Science Tem.erate Forest Beetles Bioindicators Volunteers Coleoptera Biodiversity Surveys