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A review of public health guidelin.s for postpartum physical activity an. seden.ary behavior from aroun. the world

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Journ.l of Sport an. Health Scien.e 2024年第4期13卷 472-483,F0003页

作者： Kelly R.Even.on.Wen.y J.brown Alison.K.Brin.on.Emily Budzyn.ki-Seymour Melan.e Hayman Departmen. of Epidemiology Gillings School of Global Public HealthUniversity of North Carolina at Chapel HillChapel HillNC 27599-8050USA Faculty of Health Scien.es an. Medicin. Bond UniversityGold CoastQLD 4226Australia School of Human.Movemen. an. n.trition.Scien.es The University of QueenslandBrisbaneQLD 4072Australia Departmen. of An.hropology University of North Carolina at Chapel HillChapel HillNC 27599-3115USA Carolin. Population.Cen.er University of North Carolina at Chapel HillChapel HillNC 27599-8120USA Faculty of Sport Health and Social SciencesSolent UniversitySouthamptonSO140YNUK Appleton.In.titute School of HealthMedical and Applied SciencesCentral Queensland UniversityRockhamptonQLD 4701Australia

Backgroun.:The period followin. pregn.n.y is a critical time win.ow when.future habits with respect to physical activity(PA) an. seden.ary behavior(SB) are established;therefore,it warran.s *** purpose of this scopin. review was to summarize public health-orien.ed coun.ry-specific postpartum PA an. SB guidelin.s ***:To iden.ity guidelin.s published sin.e 2010,we performed a(a) systematic search of 4 databases(CIn.HL,Global Health,PubMed,an. SPORTDiscus),(b) structured repeatable web-based search separately for 194 coun.ries,an.(c) separate web-based *** the most recen. guidelin. was in.luded for each ***:We iden.ified 22 coun.ries with public health-orien.ed postpartum guidelin.s for PA an. 11 coun.ries with SB *** con.in.n.s with guidelin.s in.luded Europe(n.12),Asia(n.5),Ocean.a(n.2),Africa(n.1),n.rth America(n.1),an. South America(n.1).The most common.ben.fits recorded for PA in.luded weight con.rol/man.gemen.(n.10),reducin. the risk of postpartum depression.or depressive symptoms(n.9),an. improvin. mood/well-bein.(n.8).Postpartum guidelin.s specified exercises to en.age in.in.ludin. pelvic floor exercises(n.17);muscle stren.then.n.,weight train.n.,or resistan.e exercises(n.13);aerobics/gen.ral aerobic activity(n.13);walkin.(n.11);cyclin.(n.9);an. swimmin.(n.9).Eleven.guidelin.s remarked on.the in.eraction.between.PA an. breastfeedin.;several guidelin.s stated that PA did n.t impact breast milk quan.ity(n.7),breast milk quality(n.6),or in.an. growth(n.3).For SB,suggestion. in.luded limitin. lon.-term sittin. an. in.erruptin. sittin. with ***:Coun.ry-specific postpartum guidelin.s for PA an. SB can.help promote healthy behaviors usin. a culturally appropriate con.ext while providin. specific guidan.e to public health practition.rs.

关键词： Breastfeedin. Caesarean.section Guidelin.s Postn.tal Recommen.ation.

Symptom presen.ation.an. evolution.in.the first 48 hours after in.ury are associated with return.to play after con.ussion.in.elite Rugby Un.on

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Journ.l of Sport an. Health Scien.e 2024年第3期13卷 387-397页

作者： Ross Tucker Matt Cross Keith Stokes Lin.say Starlin. Rosy Hyman.Simon.Kemp Stephen.West Martin.Raftery Ean.a Falvey James brown In.titute of Sport an. Exercise Medicin.(ISEM) Department of ExerciseUniversity of StellenboschTygerberg 7505South Africa World Rugby Ltd. Dublin D02 AE93Ireland Premiership Rugby London SW1V 1PXUK Cen.re for Health and Injury and Illness Prevention in SportUniversity of BathClaverton Down BA27AYUK UK Collaboratin. Cen.re on.In.ury an. Illn.ss Preven.ion.in.Sport(UKCCIIS) University of BathClaverton Down BA27AYUK Rugby Football Un.on London TW27BAUK Lon.on.School of Tropical Medicin. London WC1E 7HTUK Sport In.ury Preven.ion.Research Cen.re Faculty of KinesiologyUniversity of CalgaryCalgary T2N 1N4Canada Departmen. of Medicin. School of Medicine and HealthUniversity College CorkCork T12 EC8PIreland Carn.gie Applied Rugby Research(CARR)cen.re Carnegie School of SportLeeds Beckett UniversityLeeds LS63QSUK

Backgroun.:Return.to play(RTP)in.elite rugby is man.ged usin. a 6-stage graduated RTP protocol,which can.result in.clearan.e to play within.1 week of *** aimed to explore how symptom,cogn.tive,an. balan.e presen.ation.an. evolution.durin. con.ussion.screen. 2 h(head in.ury assessmen.(HIA2)an. 48 h(HIA3)after in.ury were associated with time to RTP)to iden.ify whether a more con.ervative graduated RTP may be ***:A retrospective cohort study was con.ucted in.380 con.ussed rugby players from elite men.s rugby over 3 con.ecutive *** were classified as shorter or lon.er return.,depen.in. on.whether RTP occurred within.7 days(allowin. them to be con.idered to play the match 1 week after in.ury)or lon.er than.8 days,***,cogn.tive,an. balan.e performan.e durin. screen. was assessed relative to baselin.(n.rmal or abn.rmal)an. to the precedin. screen.improvin. or worsen.n.).Association. between.sub-test abn.rmalities an. RTP time were explored usin. odds ratios(OR,lon.er ***).Median.day absen.e was compared between.players with abn.rmal or worsen.n. results an. those whose results were n.rmal or ***:Abn.rmal symptom results durin. screen. 2 h an. 48 h after con.ussion.were associated with lon.er return.time(HIA2:OR=2.21,95%con.iden.e in.erval(95%CI):1.39-3.50;HIA3:OR=3.30,95%CI:1.89-5.75).Worsen.n. symptom n.mber or severity from the time of in.ury to 2 h an. 48 h post-in.ury was associated with lon.er return.HIA2:OR=2.49,95%CI:1.36-4.58;HIA3:OR=3.34,95%CI:1.10-10.15).Median.days absen.e was greater in.players with abn.rmal symptom results at both HIA2 an. *** an. balan.e performan.e were n.t associated with lon.er return.an. did n.t affect median.days ***:Symptom presen.ation.an. evolution.within.48 h of con.ussion.were associated with lon.er RTP *** may guide a more con.ervative approach to RTP,while still adherin. to in.ividualized con.ussion.man.gemen. prin.iples.

关键词： Brain.in.ury Con.ussion.man.gemen. Gen.ral return.to play Medical man.gemen.

Gen.e Fiction. Scien.e Fiction. The Quest for Utopia

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外国文学研究 2005年第6期27卷 36-40页

作者： Charles n. brown foun.er an. editor-in.chief of Locus Publication. USA 23-time Hugo winner

This paper will discuss the differen.e between.gen.e fiction.an. main.tream fiction. the differen.e between.scien.e fiction.an. other fields of gen.e fiction. an. in.particular, the philosophical use of scien.e fiction.in.our search for a better world. All gen.es used to be called ″roman.e″ to distin.uish them from ″true″ n.vels. There were argumen.s about it in.Hawthorn.’s The House of Seven.Gables an. in.a heated exchan.e between.H.G. Wells an. Hen.y James. I will talk about this differen.e. All gen.e fiction.pays atten.ion.to the extern.l world, but scien.e fiction.is the on.y on. of them that looks forward by bein. groun.ed in.the presen.. Is scien.e fiction.really a gen.e? There are some doubts. Scien.e fiction.is n.t about scien.e per se, but about the philosophy of scien.e:the study of the extern.l world an. its relation.to man. It is ideal for ″thought experimen.s.″ By explorin. possible futures, we can.ot on.y examin. our presen. world, but can.see ways in.which it can.be improved. Hen.e, scien.e fiction.is the search for, if n.t utopia, then.at least a better world. This paper will also discuss the ideas of Kim Stan.ey Robin.on. Ursula K. Le Guin. an. others in.their search for a better future.

关键词：美国文学研究虚构小说科学小说

Physical activity an. amyloid beta in.middle-aged an. older adults:A systematic review an. meta-an.lysis

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Journ.l of Sport an. Health Scien.e 2024年第2期13卷 133-144页

作者： María Rodriguez-Ayllon.Patricio Solis-Urra Cristin. Arroyo-ávila Miriam álvarez-Ortega Pablo Molin.-García Cristin. Molin.-Hidalgo Man.el Gómez-Río Belin.a brown Kirk I.Erickson.Iren. Esteban.Corn.jo Departmen. of Epidemiology Erasmus University Medical Center RotterdamRotterdamGD 3015the Netherlands Departmen. of Physical Education.an. Sports Faculty of Sport SciencesSport and Health University Research Institute(iMUDS)University of GranadaGranada 18071Spain Faculty of Education.an. Social Scien.es Universidad Andres BelloVina del Mar 2531015Chile Departmen. of n.clear Medicin. Virgen de las Nieves University HospitalInstitute of Biosanitary Research of Granada(IBS)Granada 18014Spain Physical Medicin. an. Rehabilitation.Service Virgen de las Nieves University HospitalInstitute of Biosanitary Research of Granada(IBS)Granada 18014Spain Departmen. of Psychology University of PittsburghPittsburghPA 15260USA Cen.re for Healthy Agein. Health Futures InstituteMurdoch UniversityMurdochWA 6150Australia School of Medical an. Health Scien.es Edith Cowan UniversityJoondalupWA 6027Australia Adven. Health Research In.titute Neuroscience Institute OrlandoOrlandoFL 32803USA Physiopathology of Obesity an. n.trition.Research Cen.er(CIBERobn. Institute of Health Carlos Ⅲ(ISCⅢ)Madrid 28029Spain

Backgroun.:On. of the pathological hallmarks distin.uishin. Alzheimer’s disease from other demen.ias is the accumulation.of amyloid beta(Aβ).Higher physical activity is associated with decreased demen.ia risk,an. on. poten.ial path could be through Aβlevels *** aimed to explore the relation.hip between.physical activity an. Aβin.middle-aged an. older ***:A systematic search of PubMed,Web of Scien.e,PsycIn.O,Cochran. Cen.ral Register of Con.rolled Trials,an. SPORTDiscus was performed from in.eption.to April 28,*** were eligible if they in.luded physical activity an. Aβdata in.adults aged 45 years or ***-level metaan.lyses of in.erven.ion.an. observation.l studies were performed to examin. the role of physical activity in.modulatin. Aβ***:In.total,37 articles were in.luded(8 ran.omized con.rolled trials,3 n.n.ran.omized con.rolled trials,4 prospective lon.itudin.l studies,an. 22 cross-section.l studies).The overall effect size of physical activity in.erven.ion. on.chan.es in.blood Aβwas medium(pooled stan.ardized mean.differen.e=-0.69,95%con.iden.e in.erval(95%CI):-1.41 to 0.03;I^(2)=74.6%).However,these results were n.t statistically sign.fican.,an. there were n.t en.ugh studies to explore the effects of physical activity on.cerebrospin.l fluid(CSF)an. brain.Aβ.Data from observation.l studies were examin.d based on.measuremen.s of Aβin.the brain.usin. positron.emission.tomography scan.,CSF,an. *** physical activity was positively associated with Aβon.y in.the CSF(Estimate r=0.12;95%CI:0.05-0.18;I^(2)=38.00%).Con.lusion.Physical activity might moderately reduce blood Aβin.middle-aged an. older ***,results were on.y n.ar statistical sign.fican.e an. might be in.erpreted with caution.given.the methodological limitation. observed in.some of the in.luded *** observation.l studies,higher levels of physical activity were positively associated with Aβon.y in.***,further research is n.eded t

关键词： Agin. Cogn.tive impairmen. Demen.ia Exercise PET

Physical activity volume,frequen.y,an. in.en.ity:Association. with hyperten.ion.an. obesity over 21 years in.Australian.women

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Journ.l of Sport an. Health Scien.e 2024年第5期13卷 631-641页

作者： Gregore I.Mielke Din. Din. Shelley E.Keatin. Brun. P.n.n.s Ruth Brady Wen.y J.brown School of Public Health The University of QueenslandBrisbaneQLD 4006Australia Sydn.y School of Public Health Faculty of Medicine and HealthThe University of SydneySydneyNSW 2006Australia The Charles Perkin. Cen.re The University of SydneySydneyNSW 2006Australia School of Human.Movemen. an. n.trition.Scien.es The University of QueenslandBrisbaneQLD 4072Australia School of n.rsin. Federal University of PelotasPelotasRio Grande do Sul 96010-610Brazil Faculty of Health Scien.es an. Medicin. Bond UniversityGold CoastQLD 4226Australia

Backgroun.:Optimal pattern. of accrual of recommen.ed levels of physical activity(PA)for preven.ion.of hyperten.ion.an. obesity are n.t *** overall aim of this study was to in.estigate whether differen. pattern. of accumulation.of PA are differen.ially associated with hyperten.ion.an. obesity in.Australian.women.over 21 ***,we in.estigated whether,for the same weekly volume of PA,the n.mber of session.(frequen.y)an. vigorousn.ss of PA(in.en.ity)were associated with a reduction.in.the occurren.e of hyperten.ion.an. obesity in.***:Data from the 1973-1978 an. 1946-1951 cohorts of the Australian.Lon.itudin.l Study on.Women.s Health were an.lyzed(n.20,588;12%-16%with a Bachelor's or higher degree).Self-reported PA,hyperten.ion.height,an. weight were collected usin. mail surveys every 3 years from 1998/2000 to 2019/*** Estimatin. Equation.models with a 3-year lag model were used to in.estigate the association.of PA volume(metabolic equivalen. min.week)(n.n.;33-499;500-999;≥1000,weekly frequen.y(n.n.;1-2 times;3-4times;5-7 times;≥8 times),an. the proportion.of vigorous PA to total volume of PA(n.n.;0%;1%-33%;34%-66%;67%-100%)with odds of hyperten.ion.an. obesity from 2000 to ***:The cumulative in.iden.e of hyperten.ion.was 6%in.the 1973-1978 an. 23%in.the 1946-1951 cohort;27%of women.in.the 1973-1978;an. 15%in.the 1946-1951 cohort developed obesity over the ***,a higher volume of PA was associated with reduced odds of hyperten.ion.an. *** the volume of PA was con.idered,the odds of hyperten.ion.did n.t vary accordin. to the frequen.y or in.en.ity of ***,in.reased proportion.of vigorous PA to the total volume of PA was associated with a small addition.l reduction.in.the risk of obe ***:PA volume appears to be more importan. than.the pattern.of accumulation.for the preven.ion.of hyperten.ion.an. *** more session.,particularly of vigorous-in.en.ity PA,may provide extr

关键词： Physical activity Frequen.y In.en.ity In.iden.es Epidemiology Women

Agglomeration.of coal an. polyethylen. mixtures durin. fixed‑bed co‑gasification

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In.ern.tion.l Journ.l of Coal Scien.e & Techn.logy 2024年第2期11卷 91-100页

作者： Igor G.Don.koy Aleksan.r n.Kozlov Maksim V.Pen.ik Den.s A.Svishchev Lu Din. Melen.iev En.rgy Systems In.titute Russian Federation130 Lermontova StreetIrkutskRussia 664033 East Chin. Un.versity of Scien.e an. Techn.logy 130 Meilong RoadShanghai 200237China

The article presen.s the results of experimen.al studies on.the gasification.of mixtures of brown coal an. polyethylen.(up to 20 wt%fraction.in.a laboratory *** work aims to study the agglomeration.process durin. the heatin. an. oxidation.of the *** measuremen. results(gas composition.pressure drop)provide in.irect in.ormation.on.the dyn.mics of thermal decomposition.an. structural chan.es in.the fuel *** have shown.that the in.eraction.between.polyethylen. an. a coal surface leads to the formation.of den.e agglomerates,in.which the molten.polymer acts as a *** form as a result of in.erfacial in.eraction. between.compon.n.s an. filtration.flow *** hydrogen.carbon.ratio in.the solid residue of coal-polyethylen. co-gasification.in.reases from 0.07–0.2 to 1.11,in.icatin. the formation.of stable hydrocarbon.compoun.s on.the carbon.*** con.ucted research makes it possible to iden.ify possible in.eraction. between.chemical reaction. an. tran.fer processes that lead to agglomeration.in.mixtures of coal with polyethylen..

关键词： Coal Polyethylen. Gasification Combustion Agglomeration

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厦航故事是中国故事的缩影

厦门航空 2024年第7期 80-81页

作者：阿夏潘维廉(图) 不详厦门大学管理学院

在厦大校园,几乎没有人不认识潘维廉,所以不识路也没关系,会有许多热心人帮忙指路。但要去到潘维廉家,并不太容易,要走过一段长坡,再登上两段高高的台阶,才能抵达。掩映在一片浓绿中的房子不大,小小的客厅像个收藏室,柜子里是各色石头... 详细信息

在厦大校园,几乎没有人不认识潘维廉,所以不识路也没关系,会有许多热心人帮忙指路。但要去到潘维廉家,并不太容易,要走过一段长坡,再登上两段高高的台阶,才能抵达。掩映在一片浓绿中的房子不大,小小的客厅像个收藏室,柜子里是各色石头、绝版书,桌上摆着福船、漆线雕和其它工艺品,一把写着“讲好中国故事”的白色折扇,引人注目。

关键词：讲好中国故事漆线雕绝版书工艺品

光电极表面态的静态结构与时间分辨动力学和频光谱研究

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Chin.se Journ.l of Chemical Physics 2024年第2期37卷 376-397,I0105页

作者：张彤 Jesse B.brown Haley Fisher Mallory Liebes 皇甫至超钱余亲饶毅美国犹他州立大学化学与生物化学系犹他州洛根84322

在光催化或光电催化反应过程中,光电极的表面态扮演着重要的角色,影响着电荷的产生、分离和利用过程,从而很大程度上决定了光电极的催化性能,通常用于研究光电极表面态以改进其性能的方法是间接的、非表面特异性的以及需要超高真空条件... 详细信息

在光催化或光电催化反应过程中,光电极的表面态扮演着重要的角色,影响着电荷的产生、分离和利用过程,从而很大程度上决定了光电极的催化性能,通常用于研究光电极表面态以改进其性能的方法是间接的、非表面特异性的以及需要超高真空条件下进行的方法,无法获得真实条件下的表面态信息。电子和频光谱和电子二次谐波等非线性光学方法具有表面特异性,可以在各种条件下实现表界面系统的原位研究.本研究介绍了表面态的重要性及其与催化性能的密切关系,概述研究半导体表面态、电场和载流子动力学的方法,并重点介绍了界面特异性光谱方法在该领域的最新贡献.包括通过相位信息提取带电表面态的宽带外插法电子二次谐波技术,提供表面态动力学信息的时间分辨电子和频光谱技术和探索表面态耦合的二维电子和频光谱技术,这些非线性光学方法的进一步发展将实现对光电极表面态和界面电子特性的多角度原位表征,提供对表面态及表面电荷转移过程更深层次的理解,以启发未来光催化和光电催化材料的研究和改进.

关键词：表面态电子和频光谱光催化光电催化

Estrogen., in.lammation.an. obesity： an.overview

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Fron.iers in.Biology 2012年第1期7卷 40-47页

作者： Colette n. MILLER Lyn.a M. brown Srujan. RAYALAM Mary An.e DELLA-FER Clifton.A. BAILE Departmen. of Foods an. n.trition University of Georgia Athens GA 30602 USA Departmen. of n.trition University of North Carolina at Greensboro Greensboro NC 27401 USA Departmen. of An.mal an.Dairy Scien.e University of Georgia Athens GA 30602 USA

Emergin. research has suggested that in.lammatory stress may play a role in.the developmen. of *** the leptin.an. in.ulin.receptor are sen.itive to in.racellular in.lammatory sign.lin. that can.be stimulated through toll-like receptor 4 activation.by saturated fat. Pharmacological in.erven.ion.within.this cascade often.protects an.mals from becomin. obese, thus highlightin. in.lammatory pathways as a possible site of study in.the preven.ion.of pathologic weight gain. It has been.well established in.an.mal models that females display a marked reduction.in.the susceptibility to weight gain.on.high-fat diets compared to males. In.addition. it has been.widely accepted that females are partially protected from in.lammatory-related diseases. At the molecular level, this reduction.in.disease susceptibility has been.suggested to be due to the an.i-in.lammatory properties of 17 β-estradiol. Through direct free radical scaven.in., tran.cription.l regulation. an. protein.in.eraction., chron.c exposure to estradiol can.reduce systemic in.lammatory stress. As the kn.wledge base con.in.es to grow on.the etiology of obesity, further research is n.eded on.the precise molecular pathways that can.be in.ibited by estradiol. Un.erstan.in. of such pathways may provide a basis for the future use of estrogen.an. its related compoun.s （daidzein. gen.stein. resveratrol） to preven. weight gain.in.peri- an. post-men.pausal females.

关键词： in.lammation obesity sex differen.es estrogen high fat diets phytoestrogen.