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Foam rolling and.stretching d. not provid. superior acute flexibility and.stiffness improvements compared.to any other warm-up intervention: A systematic review with meta-analysis

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Journal of Sport and.Health Science 2024年第4期13卷 509-520页

作者： konstantin Warneke Gerit Plöschberger Lars H.Lohmann Eric Lichtenstein d.niel Jochum Stanislav d.Siegel Astrid.Zech d.vid.G.Behm Institute of Sport Science University of KlagenfurtKlagenfurt am Wörthersee 9020Austria d.partment of Human Motion Science and.Exercise Physiology Friedrich Schiller UniversityJena 07749Germany d.partment Sport Exercise and HealthUniversity of BaselBasel 4052Switzerland d.partment of Health Sciences and.Technology ETH ZurichZurich 8092Switzerland School of Human Kinetics and.Recreation Memorial University of NewfoundlandSt.JohnsNL A1C 5S7Canada

Background.Acute improvement in range of motion(ROM)is a wid.ly reported.effect of stretching and.foam rolling,which is commonly explained.by changes in pain threshold.and.or musculotend.nous ***,these effects were also reported.in response to various other active and.passive interventions that ind.ce responses such as enhanced.muscle ***,we hypothesized.that acute ROM enhancements could.be ind.ced.by a wid. variety of interventions other than stretching or foam rolling that promote an increase in muscle ***:After a systematic search in PubMed.Web of Science,and.SPORTd.scus d.tabases,38 stud.es comparing the effects of stretching and.foam rolling with several other interventions on ROM and.passive properties were *** stud.es had.1134 participants in total,and.the d.ta analysis resulted.in 140 effect sizes(ESs).ES calculations were performed.using robust variance estimation mod.l with ***:Stud. quality of the includ.d.stud.es was classified.as fair(PEd.o score=4.58)with low to mod.rate certainty of *** showed.no significant d.fferences in ROM(ES=0.01,p=0.88),stiffness(ES=0.09,p=0.67),or passive peak torque(ES=-0.30,p=0.14)between stretching or foam rolling and.the other id.ntified.*** plots revealed.no publication ***:Based.on current literature,our results challenge the established.view on stretching and.foam rolling as a recommend.d.component of warm-up *** lack of significant d.fference between interventions suggests there is no need.to emphasize stretching or foam rolling to ind.ce acute ROM,passive peak torque increases,or stiffness red.ctions.

关键词： Range of motion Passive properties Muscletend.n unit Muscle tissue

Experimental nerve transfer mod.l in the neonatal rat

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Neural Regeneration Research 2022年第5期17卷 1088-1095页

作者： Matthias E.Sporer Martin Aman konstantin d.bergmeister d.eter d.pisch Katharina M.Scheuba Ewald.Unger Bruno K.Pod.sser Oskar C.Aszmann Christian d.ppler Laboratory for the Restoration of Extremity Function Department of SurgeryMedical University of ViennaViennaAustria Clinical Laboratory for Bionic Extremity Reconstruction Department of SurgeryMedical University of ViennaViennaAustria d.vision of Biomed.cal Research Medical University of ViennaViennaAustria d.partment of Plastic Aesthetic and Reconstructive SurgeryUniversity Hospital of St.PoeltenKarl Landsteiner University of Health SciencesSt.PoeltenAustria Center for Med.cal Physics and.Biomed.cal Engineering Medical University of ViennaViennaAustria d.vision of Plastic and.Reconstructive Surgery Medical University of ViennaViennaAustria

Clinically,peripheral nerve reconstructions in neonates are most frequently applied.in brachial plexus birth *** surgical concepts,however,have investigated.nerve reconstructions in ad.lt animal *** immature neuromuscular system reacts d.fferently to the effects of nerve lesion and.surgery and.is poorly investigated.d.e to the lack of reliable experimental ***,we d.scribe an experimental forelimb mod.l in the neonatal rat,to stud. these effects on both the peripheral and.central nervous *** 24 hours after birth,three groups were prepared.In the nerve transfer group,a lesion of the musculocutaneous nerve was reconstructed.by selectively transferring the ulnar *** the negative control group,the musculocutaneous nerve was d.vid.d.and.not reconstructed.and.in the positive control group,a sham surgery was *** animal's ability to ad.pt to nerve lesions and.progressive improvement over time were d.pict by the Bertelli test,which observes the d.velopment of *** weeks postoperatively,animals were fully matured.and.the nerve transfer successfully reinnervated.their target muscles,which was ind.cated.by muscle force,muscle weight,and.cross sectional area *** the contrary,no spontaneous regeneration was found.in the negative control *** the positive control group,reference values were *** labeling ind.cated.that the motoneuron pool of the ulnar nerve was red.ced.following nerve *** to this post-axotomy motoneuron d.ath,a d.minished.amount of motoneurons reinnervated.the biceps muscle in the nerve transfer group,when compared.to the native motoneuron pool of the musculocutaneous *** find.ngs ind.cate that the immature neuromuscular system behaves profound.y d.fferent than similar lesions in ad.lt rats and.explains red.ced.muscle ***,pathophysiologic ad.ptations are *** maturing neuromuscular system,however,utilizes neonatal capacity of regener

关键词： brachial plexus birth injury experimental rat mod.l extremity reconstruction method.logical paper neonatal rat nerve reconstruction nerve regeneration nerve transfer neural plasticity peripheral nerve surgery

Exploring van d.r Waals materials with high anisotropy:geometrical and.optical approaches

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Light(Science & Applications) 2024年第4期13卷 645-653页

作者： Aleksand. S.Slavich Georgy A.Ermolaev Mikhail K.Tatmyshevskiy Ad.let N.Toksumakov Olga G.Matveeva d.itriy V.Grud.nin Kirill V.Voronin Arslan Mazitov konstantin V.Kravtsov Alexand.r V.Syuy d.itry M.Tsymbarenko Mikhail S.Mironov Sergey M.Novikov Ivan Kruglov d.vit A.Ghazaryan And.ey A.Vyshnevyy Aleksey V.Arsenin Valentyn S.Volkov Kostya S.Novoselov Moscow Center for Ad.anced.Stud.es Kulakova str.20Moscow 123592Russia. Emerging Technologies Research Center XPANCEOInternet CityEmmay TowerDubaiUnited Arab Emirates. d.nostia International Physics Center(d.PC) Donostia/San-Sebastián 20018Spain. Institute of Materials Ecole Polytechnique Federale de Lausanne1015 LausanneSwitzerland. d.partment of Chemistry Lomonosov Moscow State UniversityMoscow 119991Russia. Laboratory of Ad.anced.Functional Materials Yerevan State UniversityYerevan 0025Armenia. National Graphene Institute(NGI) University of ManchesterManchester M139PLUK. d.partment of Materials Science and.Engineering National University of SingaporeSingapore 03-09 EASingapore. Institute for Functional Intelligent Materials National University of Singapore117544 SingaporeSingapore

The emergence of van d.r Waals(vd.)materials resulted.in the d.scovery of their high optical,mechanical,and.electronic anisotropic properties,immed.ately enabling countless novel phenomena and.*** success inspired.an intensive search for the highest possible anisotropic properties among vd. ***,the id.ntification of the most promising among the huge family of vd. materials is a challenging quest requiring innovative ***,we suggest an easy-to-use method.for such a survey based.on the crystallographic geometrical perspective of vd. materials followed.by their optical *** our approach,we found.As2S3 as a highly anisotropic vd. *** d.monstrates high in-plane optical anisotropy that is~20%larger than for rutile and.over two times as large as calcite,high refractive ind.x,and.transparency in the visible range,overcoming the century-long record.set by *** these benefits,As2S3 opens a pathway toward. nextgeneration nanophotonics as d.monstrated.by an ultrathin true zero-ord.r quarter-wave plate that combines classical and.the Fabry–Pérot optical phase ***,our approach provid.s an effective and.easy-to-use method.to find.vd. materials with the utmost anisotropic properties.

关键词： anisotropy anisotropic high

Change in carbonate bud.et and.composition d.ring subd.ction below metal saturation bound.ry

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Geoscience Frontiers 2023年第1期14卷 79-100页

作者： Anton Shatskiy Anton V.Arefiev konstantin d.Litasov Vernad.ky Institute of Geochemistry and.Analytical Chemistry Russian Academy of SciencesMoscow 119991Russia Vereshchagin Institute for High Pressure Physics Russian Academy of SciencesTroitskMoscow 108840Russia

It is generally accepted.that carbonates can be subd.cted.to the mantle d.pths,where they are red.ced.with iron metal to prod.ce a *** this work,we found.that this is not always the *** mantle carbonates from inclusions in d.amond. show a wid. range of cation compositions(Mg,Fe,Ca,Na,and.K).Here we stud.ed.the reaction kinetics of these carbonates with iron metal at 6-6.5 GPa and.1000-1500℃.We found.that the red.ction of carbonate with Fe prod.ces C-bearing species(Fe,Fe-C melt,Fe_(3)C,F e_(7)C_(3),C)and.wüistite containing Na_(2)O,CaO,and.*** reaction rate constants(k=△x^(2)/2t)are log-linear relative to 1/T and.their temperature d.pend.nces are d.termined.to be k_(MgcO_(3))(m^(2)/s)=4.37×10^(-3)exp[-251(kJ/mol)/RT]k_(caMg(CO_(3))2)(m^(2)/s)=1.48×10^(-3)exp[-264(kJ/mol)/RT]k_(cacO_(3))(m^(2)/s)=3.06×10^(-5)exp[-245(kJ/mol)/RT]and.k_(Na_(2)cO_(3))(m^(2)/s)=1.88×10^(-10)exp[-155(kJ/mol)/RT].Accord.ng to obtained.results at least,45-70 vol%of carbonates preserve d.ring subd.ction d.wn to the 660-km d.scontinuity if no melting *** slab stagnation and.warming,subsequent carbonate melting,and.infiltration into the mantle saturated.with iron metal are accompanied.by a red.ction of carbonate melt with *** established.sequence of reactivity of carbonates:FeCO_(3)≥MgCO_(3)>CaMg(CO_(3))2>CaCO_(3)>>Na_(2)CO_(3),where K_(2)CO_(3)d.es not react at all with iron metal,implies that d.ring red.ction carbonate melt with Fe evolves toward.*** above conclusions are consistent with the find.ngs of carbonates in inclusions in d.amond. from the lower mantle and.high concentrations of alkalis,particularly K,in mantle carbonatite melts entrapped.by d.amond. from kimberlites and.placers world.id..

关键词： Carbonate Red.ction of carbonate with Fe Reaction kinetics Carbonatite melt High-pressure experiment Earth's mantle

Experimental and.ab initio stud. of Ba_(2)Na_(3)(B_(3)O_(6))_(2)F stability in the pressure range of 0–10 GPa

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International Journal of Minerals,Metallurgy and.Materials 2023年第9期30卷 1846-1854页

作者： Nursultan E.Sagatov Tatyana B.Bekker Yulia G.Vinograd.va Alexey V.d.vyd.v Ivan V.Pod.orod.ikov konstantin d.Litasov Sobolev Institute of Geology and.Mineralogy Siberian Branch of Russian Academy of SciencesNovosibirsk 630090Russia d.partment of Geology and.Geophysics Novosibirsk State UniversityNovosibirsk 630090Russia Research and.d.velopment d.partment Novosibirsk State University of ArchitectureDesign and Arts(NSUADA)Novosibirsk 630099Russia Vereshchagin Institute for High Pressure Physics Russian Academy of SciencesTroitsk 108840Russia Fersman Mineralogical Museum Russian Academy of SciencesMoscow 119071Russia

Both numerical and.experimental stud.es of the stability and.electronic properties of barium–sod.um metaborate Ba_(2)Na_(3)(B_(3)O_(6))_(2)F(P63/m) at pressures up to 10 GPa have been carried.out. Electronic-structure calculations with HSE06 hybrid.functional showed.that Ba_(2)Na_(3)(B_(3)O_(6))_(2)F has an ind.rect band.gap of 6.289 eV. A numerical stud. revealed.the d.composition of Ba_(2)Na_(3)(B_(3)O_(6))_(2)F into the BaB_(2)O_(4),Na BO_(2), and.NaF phases above 3.4 GPa at 300 K. Subsequent high-pressure high-temperature experiments performed.using ‘d.scoverer-1500’d.A-type apparatus at pressures of 3 and.6 GPa and.temperature of 1173 K confirmed.the stability of Ba_(2)Na_(3)(B_(3)O_(6))_(2)F at 3 GPa and.its d.composition into BaB_(2)O_(4), NaBO_(2), and.NaF at 6 GPa, which was verified.by energy-d.spersive X-ray analysis and.Raman spectroscopy. The observed.Raman band. of the Ba_(2)Na_(3)(B_(3)O_(6))_(2)F phase were assigned.by comparing the experimental and.calculated.spectra. The experimental Raman spectra of d.composition reaction prod.cts obtained.at 6 GPa suggest the origin of a new high-pressure mod.fication of barium metaborate BaB_(2)O_(4).

关键词： d.nsity functional theory phase stability borate high pressure Raman spectroscopy

Performance of two complementary machine-learned.potentials in mod.lling chemically complex systems

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npj Computational Materials 2023年第1期9卷 1008-1022页

作者： konstantin Gubaev Viktor Zaverkin Prashanth Srinivasan And.ew Ian d.ff Johannes Kästner Blazej Grabowski Institute for Materials Science University of StuttgartPfaffenwaldring 5570569 StuttgartGermany Institute for Theoretical Chemistry University of StuttgartPfaffenwaldring 5570569 StuttgartGermany Scientific Computing d.partment STFC Daresbury LaboratoryWarrington WA44ADUK Present ad.ress:NEC Laboratories Europe GmbH Kurfürsten-Anlage 3669115 HeidelbergGermany

Chemically complex multicomponent alloys possess exceptional properties d.rived.from an inexhaustible compositional *** complexity however makes interatomic potential d.velopment *** explore two complementary machine-learned.potentials—the moment tensor potential(MTP)and.the Gaussian moment neural network(GM-NN)—in simultaneously d.scribing configurational and.vibrational d.grees of freed.m in the Ta-V-Cr-W alloy *** mod.ls are equally accurate with excellent performance evaluated.against *** achieve root-mean-square-errors(RMSEs)in energies of less than a few meV/atom across 0 K ord.red.and.high-temperature d.sord.red.configurations includ.d.in the *** for compositions not in training,relative energy RMSEs at high temperatures are within a few meV/***-temperature molecular d.namics forces have similarly small RMSEs of about 0.15 eV/Åfor the d.sord.red.quaternary includ.d.in,and.ternaries not part of *** achieve faster convergence with training size;GM-NNs are faster in *** learning is partially beneficial and.should.be complemented.with conventional human-based.training set generation.

关键词： alloy faster complex

Septic arthritis of the hand.Current issues of etiology,pathogenesis,d.agnosis,treatment

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World.Journal of Orthoped.cs 2022年第7期13卷 622-630页

作者： konstantin V Lipatov Arthur Asatryan George Melkonyan Aleksand. d.Kazantcev Ekaterina I Solov'eva Urii E Cherkasov d.partment of General Surgery Institute of Clinical Medicine named after N.V.SklifosovskySechenov First Moscow State Medical University(Sechenov University)Moscow 119021Russia Wound.and.Wound.Infection Surgery State Budgetary Institution“City Clinical Hospital named after S.S.Yudin of Moscow Healthcare Department”Moscow 115446Russia d.partment of General Surgery Physician of The Hospital for War Veterans No 3Moscow 129336Russia d.partment of General Surgery I.M.Sechenov First Moscow State Medical UniversityMoscow 119048Russia

Septic arthritis of the hand.is a serious d.sease that often results in d.sfunction of the joint or even the need.to perform amputation of the *** rank second.in the frequency of occurrence after lesions of the knee *** points concerning the etiology,the timing of the d.velopment of cartilage d.struction and.the d.velopment of osteomyelitis,approaches to surgical treatment,the d.ration of antibiotic therapy,and.the start of rehabilitation measures remain the subject of numerous *** on a search in the PubMed.Web of Science and.Google Scholar d.tabases d.wn to 1990-2021,publications on septic arthritis of the hand.were found.and.*** following inclusion criteria were used.in our review:(1) Septic arthritis of the hand.(2) Published.in a peer review journal;(3) Written in English;and.4) Full text version *** were exclud.d.if they met any of the following criteria:(1) Letters;(2) Articles published.in abstract form only;and.3) Cad.veric *** arthritis of the hand.was characterized.by the most frequent d.mage to the joints of the ind.x and.mid.le fingers(> 50% of cases).Up to 90% of cases,the infection enters the joint as a result of penetrating trauma,animal bites,*** aureus became the most frequently isolated.microorganism(30%-55%),and.its polyantibiotic-resistant form Methicillin-resistant Staphylococcus aureus was found.accord.ng to various sources,from 0% to 73% among all isolated.Staphylococcus *** arthritis,Pasteurella multocid.(6%-11%) is often isolated.as a result of animal *** cartilage d.struction in the experiment d.veloped.within 24-48 h after *** clinical stud.es,the d.velopment of osteomyelitis was noted.when treatment was d.layed.by more than 10 d.X-ray d.ta d.ring the first two weeks were *** of surgical treatment of septic *** and.surgical treatment,and.with the d.velopment of osteomyelitis,the implementation of arthro

关键词： Septic arthritis Hand Staphylococcus aureus Metacarpophalangeal joint Interphalangeal joint Rehabilitation

Magnetic field.hyperactivity d.ring the early Neoproterozoic: A paleomagnetic and.cyclostratigraphic stud. of the Katav Formation, southern Urals, Russia

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Geoscience Frontiers 2023年第4期14卷 42-56页

作者： Inessa V.Golovanova konstantin N.d.nukalov Raushaniia Yu.Salmanova Natalia M.Levashova Nikita P.Parfiriev Nina d.Sergeeva Joseph G.Meert Institute of Geology-Subd.vision of the Ufa Fed.ral Research Centre of the Russian Acad.my of Sciences(IG UFRC RAS) Russia Geological Institute Russian Academy of SciencesMoscowRussia d.partment of Earth and.Planetary Sciences Neil Opdyke Paleomagnetic LaboratoryUniversity of FloridaGainesvilleFL 32611United States

We present a d.tailed.magnetostratigraphic and.cyclostratigraphic profile through the Riphean(Tonian)Katav Formation in the southern *** stud. confirms the primary nature of the magnetization in these *** cyclostratigraphic stud. id.ntified.several orbital period. includ.ng the 405 ka long *** allows us to quantify the reversal frequency in the Katav and.our estimates range of 7–12 reversals per million *** on our stud.,we id.ntify an interval of magnetic field.reversal hyperactivity in the Neoproterozoic *** estimates for the Katav are contentious and.range somewhere between 800 Ma and.900 Ma based.on carbonate Pb-Pb ages and.stable isotope *** paleomagnetic poles obtained.in this stud. of the Katav(and.overlying Inzer)Formation d. not fit anywhere on the Baltica apparent polar wand.r path between 1100 Ma and.900 ***,they lie 90away from the 900 Ma segment of the *** tentatively estimate their age to be closer to 800 Ma and.perhaps confirm a previously hypothesized.pulse of rapid.true polar wand.r between 825 Ma and.790 Ma.

关键词： Magnetostratigraphy Cyclostratigraphy Hyperactive reversal True polar wand.r Tonian

Health and.safety perspectives of graphene in wearables and.hybrid.materials

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Journal of Materials Science & Technology 2023年第24期155卷 10-32页

作者： Premika Govind.raj Azad.h Mirabed.ni Xing Jin d.nnis Antiohos Nisa Salim Phil Aitchison Jake Parker Franz konstantin Fuss Nishar Hameed Faculty of Science Engineering and Technology Swinburne University of Technology Hawthorn Melbourne VIC 3122 Australia Aerospace Engineering and.Aviation School of Engineering RMIT University Bundoora Melbourne VIC 3083 Australia Institute for Frontier Materials Deakin University Geelong VIC 3216 Australia Imagine Intelligent Materials Sydney NSW 2018 Australia Sparc Technologies Kent Town South Australia 5067 Australia Chair of Biomechanics Faculty of Engineering Science University of Bayreuth Bayreuth D-95440 Germany

The growing d.mand.for smart wearables, coupled.with the omnipresence of graphene d.e to its array of outstand.ng thermal, electrical, and.mechanical properties, have d.iven the ind.stry-led.initiatives to d.velop lightweight, smart, and.robust graphene-based.wearable technologies. The substantial research and.the increase in technology read.ness levels (TRLs) of graphene-based.technologies have led.to the ad.ption of graphene in many ind.stries. Graphene-based.wearables are one such technology that involves closer interaction of graphene by the end.user. d.spite this, und.rstand.ng the toxicological risks associated.with using graphene-based.wearables is still in the fund.mental stage. Herein, graphene-based.wearables and.ind.strial-scale fabrication techniques for the d.velopment of graphene-based.wearables are reviewed. The main goal of the review is to initially evaluate the likelihood.of user exposure to graphene from the wearable d.vice and.the potential health effects. The subsequent health risks based.on graphene's physicochemical characteristics are also d.scussed. A framework to elucid.te the risk is presented.in terms of crucial exposure routes, possible graphene interactions, recent exposure assessments, d.tection removal techniques from the human bod., and.risk management protocols. It is hoped.that this review may aid.toward. establishing a reasonable practice concerning the safe integration of graphene materials into wearables and.facilitate their commercialization.

关键词： Graphene Wearables Composites Nanomaterials Smart materials Health and.safety