检索结果-南通市图书馆

SHORT cOMMUNIcATION Realistic Assessment of Health Hazards of chemicals

在线全文

学校读者我要写书评

暂无评论

Biomedical and Environmental Sciences 1989年第1期2卷 78-80页

作者： frank c.LU consulting Toxicologist Food Additives and Contaminants Pesticides and Environmental Pollutants Miami Florida 33116-0913

INTRODUcTION The general public is exposed to a variety of chemicals, including food additives,contaminants, and pesticides. To protect the public from any health hazards associ ated with these chemicals, toxicities are assessed by national regulatory agencies andat an international level by the World Health Organization (WHO) in conjunctionwith the Food and Agriculture Organization of the United Nations (FAO). A briefdescription of the work in this field conducted jointly by WHO and FAO has been

关键词： SHORT cOMMUNIcATION Realistic Assessment of Health Hazards of chemicals

Effects of Added Mass on Muscle Activity and Joint Movement During Walking

在线全文

学校读者我要写书评

暂无评论

Journal of Bionic Engineering 2023年第6期20卷 2703-2715页

作者： Yali Han frank c.Sup IV Ziyang Han Zhangzhang Mi Department of Mechanical Engineering Nanjing Institute of TechnologyNanjing211167China Department of Mechanical and Industrial Engineering University of MassachusettsAmherstMA01003USA

Added mass provided irregular interference towards human movement and shifted the force generated by lower limb ***,the association between mass and muscle activities is not well *** study aims at investigating the influence of added mass on lower *** our study,five young,healthy walkers performed walking trials under three load conditions(unload;c1:0.25 pounds on feet,1 pound on calves,and 2 pounds on thighs;c2:1 pound on feet,2 pounds on calves,and 4 pounds on thighs).During walking,three-dimensional kinematics,sEMG signals,and oxygen consumption were collected which allowed us to understand the effects of added mass on *** also generated OpenSim simulation,designed to comprehend the relationship between added mass and *** the increase of added mass,maximum sEMG signal and peak joint torque increased;whereas,the horizontal stride time reduced(unload:1.697±0.02 s,c1:1.651±0.02 s,c2:1.622±0.02 s).Energy expenditure raised correspondingly(c1:6.53%,c2:24.85%).Moreover,joint moment increased,while same change occurred in muscle ***,our results show that participants responded positively to additional mass by adjusting muscle activities,joint movement,and stride frequency,which demonstrates the relationship between energy consumption and added mass.

关键词： Biomechanics Load carriage Gait Muscle force

Non-coding RNAs in exercise immunology:A systematic review

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Sport and Health Science 2024年第3期13卷 311-338,I0002页

作者： Mona Kotewitsch Melina Heimer Boris Schmitz frank c.Mooren Department of Rehabilitation Sciences Faculty of HealthUniversity of Witten/HerdeckeWitten 58455Germany DRV clinic Konigsfeld Center for Medical RehabilitationEnnepetal 58256Germany

Regular physical exercise has been recognized as a potent modulator of immune function,with its effects including enhanced immune surveillance,reduced inflammation,and improved overall *** strong evidence exists that physical exercise affects the specific expression and activity of non-coding RNAs(ncRNAs)also involved in immune system regulation,heterogeneity in individual study designs and analyzed exercise protocols exists,and a condensed list of functional,exercise-dependent ncRNAs with known targets in the immune system is missing from the literature.A systematic review and qualitative analysis was used to identify and categorize ncRNAs participating in immune modulation by physical *** combined approaches were used:(a)a systematic literature search for“ncRNA and exercise immunology”,(b)and a database search for microRNAs(miRNAs)(miRTarBase and DIANA-Tarbase v8)aligned with known target genes in the immune system based on the Reactome database,combined with a systematic literature search for“ncRNA and exercise”.Literature searches were based on PubMed,Web of Science,and SPORTDiscus;and miRNA databases were filtered for targets validated by in vitro experimental *** were eligible if they reported on exercise-based interventions in healthy *** duplicate removal,95 studies were included reporting on 164 miRNAs,which were used for the qualitative *** studies reporting on long-noncoding RNAs(lncRNAs)or circular RNAs were also *** were analyzed using ordering tables that included exercise modality(endurance/resistance exercise),acute or chronic interventions,as well as the consistency in reported change between *** criteria were defined as“validated”with 100%of≥3 independent studies showing identical direction of regulation,“plausible”(≥80%),or“suggestive”(≥70%).For resistance exercise,upregulation of miR-206 was validated while downregulation of miR-133a appeared *** endurance exer

关键词： Immune system Inflammation MicroRNA ncRNA Physical exercise

From basic properties to the Mott design of correlated delafossites

在线全文

学校读者我要写书评

暂无评论

npj computational Materials 2021年第1期7卷 1084-1100页

作者： frank Lechermann European XFEL SchenefeldGermany center for computational Quantum Physics Flatiron InstituteNew YorkNYUSA

The natural-heterostructure concept realized in delafossites highlights these layered *** metallic,band-or Mott-insulating character may be associated with individual layers,inter-layer coupling still plays a decisive *** review the correlated electronic structure of PdcoO_(2),PdcrO_(2),and AgcrO_(2),showing that layer-entangled electronic states can deviate from standard classifications of interacting *** finding opens up possibilities for materials design in a subtle Mott-critical *** Hidden-Mott physics,correlation-induced semimetallicity,or Dirac/flat-band dispersions in a Mott background are emerging *** with achievements in the experimental preparation,this inaugurates an exciting research field in the arena of correlated materials.

关键词： materials metallic showing

Influence of growing location and cultivar on Rhyzopertha dominica （coleoptera： Bostrichidae） and Sitophilus oryzae （coleoptera： curculionidae） infestation of rough rice

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Insect Science 2007年第3期14卷 231-239页

作者： frank H. ARTHUR RUSTY c. BAUTISTA TERRENcE J. SIEBENMORGEN USDA-ARS Grain Marketing and Production Research center Manhattan Kansas Department of Food Science University of Arkansas Fayetteville Arkansas USA

Long-grain rice cultivars cocodrie, Wells, and XP 723 grown in three locations （Hazen, MO; Essex and Newport, AR, USA）, and medium-grain rice cultivars Bengal and XP 713 grown in two locations （Jonesboro and Lodge corner, AR, USA）, were harvested and assayed for susceptibility to Rhyzopertha dominica （F.）（coleoptera： Bostrichidae）, the lesser grain borer, and Sitophilus oryzae （L.）（coleoptera： curculionidae）, the rice weevil, on rice held at 27℃, 57% and 75% relative humidity （RH）. Separate samples from the same harvest lots were also analyzed for the physical characteristics of brown rice yield, percentage whole kernels and kernel thickness. Progeny production and feeding damage of R. dominica were significantly different among long-grain cultivars within two of the three locations （P 〈 0.05）, but not for location or RH （P ≥ 0.05）, while progeny production of S. oryzae was different among cultivars, location, and RH （P 〈 0.05）. On medium-grain rice, both cultivar and location were significant for progeny production of R. dominica, but not RH, while cultivar and RH were significant for progeny production of S. oryzae, but not location. On both rice types, feeding damage of R. dominica followed the same trends and was always strongly positively correlated with progeny production （P 〈 0.05）, but for S. oryzae there were several instances in which progeny production was not correlated with feeding damage （P ≥ 0.05）. Physical characteristics of both rice types were statistically significant （P 〈 0.01） but actual numerical differences were extremely small, and were generally not correlated with progeny production of either species. Results indicate that the location in which a particular rice cultivar is grown, along with its characteristics, could affect susceptibility of the rice to R. dominica and S. oryzae.

关键词： rough rice cultivars stored-product insects Rhyzopertha dominica Sitophilus oryzae

Effects of supplements differing in fatty acid profile to late gestational beef cows on cow performance,calf growth performance,and mRNA expression of genes associated with myogenesis and adipogenesis

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Animal Science and Biotechnology 2021年第4期12卷 1483-1497页

作者： Taoqi Shao frank A.Ireland Joshua c.Mccann Daniel W.Shike Department of Animal Sciences University of Illinois at Urbana-ChampaignUrbanaILUSA

Background:Maternal nutrition during gestation affects fetal development,which has long-term programming effects on offspring postnatal growth *** a critical role in protein and lipid metabolism,essential fatty acids can influence the development of muscle and adipose *** experiment investigated the effects of late gestation supplements(77 d prepartum),either rich in saturated and monounsaturated fatty acids(cON;155 g/cow/d EnerGII)or polyunsaturated fatty acids(PUFA;80 g/cow/d Strata and 80 g/cow/d Prequel),on cow performance and subsequent calf growth performance as well as mRNA expression in longissimus muscle(LM)and subcutaneous adipose tissue at birth and ***:There was no difference(P≥0.34)in cow body weight(BW)or body condition score from presupplementation through *** concentrations of c18:3n-3 and c20:4n-6 decreased(P≤0.05)to a greater extent from mid-supplementation to calving for PUFA compared with cON *** plasma c20:0,c20:5n-3,and c22:6n-3 were increased(P≤0.01)in PUFA during supplementation *** birth,PUFA steers had greater(P=0.01)plasma c20:*** differences(P≥0.33)were detected in steer birth BW or dam milk production,however,cON steers tended(P=0.06)to have greater pre-weaning average daily gain and had greater(P=0.05)weaning BW compared with *** mRNA expression in steers:MYH7 and c/EBPβin LM increased(P≤0.04)to a greater extent from birth to weaning for PUFA compared with cON;MYF5 in LM and c/EBPβin adipose tissue tended(P≤0.08)to decrease more from birth to weaning for cON compared with PUFA;ScD in PUFA adipose tissue tended(P=0.08)to decrease to a greater extent from birth to weaning than *** addition,maternal PUFA supplementation tended(P=0.08)to decrease MYOG mRNA expression in LM and decreased(P=0.02)ZFP423 in adipose tissue during the pre-weaning ***:Late gestation PUFA supplementation decreased pre-weaning growth performance of the subsequent steer progeny compared

关键词： Beef cattle Fatty acids Fetal programming Late gestation mRNA expression

Asymptotics and Blow-up for Mass critical Nonlinear Dispersive Equations(Dedicated to Professor Ham Brezis on the occasion of his 70th birthday)

在线全文

学校读者我要写书评

暂无评论

chinese Annals of Mathematics,Series B 2017年第2期38卷 579-590页

作者： frank MERLE Universitéde cergy-pontoise MathématiquesCNRSCNRSF-95000 Cergy-PontoiseFrance Institut des HautesEtudes Scientifiques 35 Route de Chartres91440 Bures-sur-YvetteFrance

The author considers mass critical nonlinear Schrdinger and Korteweg-de Vries equations. A review on results related to the blow-up of solution of these equations is given.

关键词： Dispersive nonlinear PDE, criticality, Asymptotics, Blow-up, Globalsolution, Soliton

Preliminary Study on Destruction of Freon 12 by Inductively coupled Plasma--Development of IcP Technology for Waste Destruction

在线全文

学校读者我要写书评

暂无评论

chemical Research in chinese Universities 1997年第2期13卷 41-45页

作者： cHEN Deng-yun WANG Xiao-ru frank S.-c.LEE Department of chemistry the Research Lab.of SEDC of Analytical Science for Material and Life ChemistryXiamen UniversityXiamen361005 Department of chemistry Hong Kong Baptist UniversityHong Kong

ＰｒｅｌｉｍｉｎａｒｙＳｔｕｄｙｏｎＤｅｓｔｒｕｃｔｉｏｎｏｆＦｒｅｏｎ１２ｂｙＩｎｄｕｃｔｉｖｅｌｙＣｏｕｐｌｅｄＰｌａｓｍａ——ＤｅｖｅｌｏｐｍｅｎｔｏｆＩＣＰＴｅｃｈｎｏｌｏｇｙｆｏｒＷａｓｔｅＤｅｓｔｒｕｃｔ... 详细信息

ＰｒｅｌｉｍｉｎａｒｙＳｔｕｄｙｏｎＤｅｓｔｒｕｃｔｉｏｎｏｆＦｒｅｏｎ１２ｂｙＩｎｄｕｃｔｉｖｅｌｙＣｏｕｐｌｅｄＰｌａｓｍａ——ＤｅｖｅｌｏｐｍｅｎｔｏｆＩＣＰＴｅｃｈｎｏｌｏｇｙｆｏｒＷａｓｔｅＤｅｓｔｒｕｃｔｉｏｎＣＨＥＮＤｅｎｇ－ｙｕｎａｎ...

关键词： Inductively coupled Plasma Waste Management Freon 12

The Fusarium oxysporum Avr2-Six5 Effector Pair Alters Plasmodesmatal Exclusion Selectivity to Facilitate cell-to-cell Movement of Avr2

在线全文

学校读者我要写书评

暂无评论

Molecular Plant 2018年第5期11卷 691-705页

作者： Lingxue cao Mila c. Blekemolen Nico Tintor Ben J.c. cornelissen frank L.W. Takken Molecular Plant Pathology Swammerdam Institute for Life Science University of Amsterdam 1098 XH Amsterdam the Netherlands

Pathogens use effector proteins to manipulate their hosts. During infection of tomato, the fungus Fusarium oxysporum secretes the effectors Avr2 and Six5. Whereas Avr2 suffices to trigger I-2-mediated cell death in heterologous systems, both effectors are required for I-2-mediated disease resistance in tomato. How Six5 participates in triggering resistance is unknown. Using bimolecular fluorescence complementation assays we found that Avr2 and Six5 interact at plasmodesmata. Single-cell transformation revealed that a 2xRFP marker protein and Avr2-GFP only move to neighboring cells in the presence of Six5. Six5 alone does not alter plasmodesmatal transduction as 2xRFP was only translocated in the presence of both effectors. In SIX5-expressing transgenic plants, the distribution of virally expressed Avr2-GFP, and subsequent onset of I-2-mediated cell death, differed from that in wild-type tomato. Taken together, our data show that in the presence of Six5, Avr2 moves from cell to cell, which in susceptible plants contributes to virulence, but in I-2 containing plants induces resistance.

关键词： Plasmodesmata immunity effector pathogen Fusarium disease