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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

The Mg-carbonate-Fe interaction:Implication for the fate of subd.cted.carbonates and.formation of d.amond.in the lower mantle

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Geoscience Frontiers 2019年第4期10卷 1449-1458页

作者： Naira S.Martirosyan konstantin d. Litasov Sergey S. Lobanov Alexand.r F. Goncharov Anton Shatskiy Hiroaki Ohfuji Vitali Prakapenka Sobolev Institute of Geology and.Mineralogy Russian Academy of ScienceKoptyuga ave.3Novosibirsk630090Russia Geophysical Laboratory Carnegie Institution for ScienceWashingtonDC20015USA Novosibirsk State University Pirogova st.2Novosibirsk630090Russia Geod.namic Research Center Ehime UniversityMatsuyamaEhime790-8577Japan Center for Ad.anced.Rad.ation Sources University of ChicagoChicagoIL60637USA

The fate of subd.cted.carbonates in the lower mantle and.at the core-mantle bound.ry was mod.lled.via experiments in the MgCO3-Fe^0 system at 70-150 GPa and.800-2600 Kin a laser-heated.d.amond.anvil *** in situ synchrotro n X-ray d.ffraction and.ex situ transmission electron microscopy we show that the red.ction of Mg-carbonate can be exemplified.by:6 MgCO3+19 Fe=8 FeO+10(Mg0.6Fe^0.4)O+Fe7 C3+3 *** presented.results suggest that the interaction of carbonates with Fe^0 or Fe^0-bearing rocks can prod.ce Fe-carbid. and.d.amond.which can accumulate in the d.region,d.pend.ng on its carbon to Fe *** to the sluggish kinetics of the transformation,d.amond.can remain metastable at the core-mantle bound.ry(CMB)unless it is in a d.rect contact with *** ad.ition,it can be remobilized.by red.x melting accompanying the generation of mantle plumes.

关键词： d.ep carbon cycle Carbonate Carbid. High pressure Red.x reaction

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World.Journal of Gastroenterology 2020年第22期26卷 2931-2947页

作者： Tea L Laursen Thomas d.Sand.hl konstantin Kazankov Jacob George Henning Gronbæk d.partment of Hepatology and.Gastroenterology Aarhus University HospitalAarhus N DK-8200Denmark Storr Liver Centre Westmead Institute for Medical ResearchWestmead HospitalSydney NSW 2145Australia University of Syd.ey Sydney NSW 2145Australia

More than five years ago,the treatment of hepatitis C virus infection was revolutionized.with the introd.ction of all-oral d.rect-acting antiviral(d.A)*** proved.highly efficient in curing patients with chronic hepatitis C(CHC),includ.ng patients with *** new d.A treatments were alleged.to ind.ce significant improvements in clinical outcome and.prognosis,but the exact cause of the expected.benefit was ***,little was known about how the und.rlying liver d.sease would.be affected.d.ring and.after viral *** this review,we d.scribe and.d.scuss the liver-related.effects of the new treatments in regard. to both pathophysiological aspects,such as macrophage activation,and.the time-d.pend.nt effects of therapy,with specific emphasis on inflammation,structural liver changes,and.liver function,as these factors are all related.to morbid.ty and.mortality in CHC *** seems clear that antiviral therapy,especially the achievement of a sustained.virologic response has several beneficial effects on liver-related.parameters in CHC patients with ad.anced.liver fibrosis or *** seems to be a timed.pend.nt effect of d.A therapy with viral clearance and.the resolution of liver inflammation followed.by more d.screte changes in structural liver *** improvements lead.to favorable effects on liver function,followed.by an improvement in cognitive d.sfunction and.portal ***,the d.ta provid. knowled.e on the several beneficial effects of d.A therapy on liverrelated.parameters in CHC patients suggesting short-and.long-term improvements in the und.rlying d.sease with the promise of an improved.longterm prognosis.

关键词： Chronic hepatitis C Antiviral treatment Inflammation Liver fibrosis Liver cirrhosis Metabolic liver function Galactose elimination capacity Urea synthesis capacity Portal hypertension Hepatic encephalopathy

Molecular Assessment and.Taxonomic Status of the Rapid.Racerunner (Eremias velox complex) with Particular Attention to the Populations in Northwestern China

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Asian Herpetological Research 2014年第1期5卷 12-25页

作者： Jinlong LIU Natalia A.ANANJEVA Marina A.CHIRIKOVA konstantin d.MILTO Xianguang GUO Chengd. Institute of Biology Chinese Academy of Sciences University of Chinese Acad.my of Sciences Zoological Institute Russian Academy of Sciences Institute of Zoology Committee of Scientific Ministry of Education and Science

The rapid.racerunner,Eremias velox,is a wid.ly d.stributed.lizard.from the northern Caucasus across entire Central Asia eastward.to *** is increasingly common to accept *** as a species complex in its entire *** d.te,published.morphological and.molecular systematic hypotheses of this complex are only partially congruent,and.its taxonomic status and.evolutionary history are still far from *** mitochond.ial cytochrome b gene and.2S rRNA sequences were used.to evaluate the taxonomy of this complex,with particular attention to the phylogenetic placement of populations in northwestern *** of the phylogenetic analyses recovers seven d.stinct,biogeographically d.screte,and.well-supported.clad.s,revealing genetically id.ntifiable populations correspond.ng to some previously morphology-d.fined.*** *** appears to have split from other Central Asian rapid.racerunner lizard. well before d.fferentiation occurred.among the latter ***,we corroborate that there are two subspecies occurring in China,i.e.,*** and.*** recommend.a novel subspecific status for the phenotypically and.genetically d.stinct populations in southern Aral Sea region of Uzbekistan previously assigned.to ***,each of the three ind.pend.ntly evolving lineages from Iranian Plateau should.be recognized.as three species new to science und.r the general lineage concept.

关键词： mtd.A subspecies Eremias velox complex taxonomy phylogeography

High-resolution photoacoustic microscope for rat brain imaging in vivo

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Chinese Optics Letters 2010年第6期8卷 609-611页

作者：杨孝全蔡鑫 konstantin Maslov 汪立宏骆清铭 Britton Chance Center for Biomed.cal Photonics Wuhan National Laboratory for OptoelectronicsHuazhong University of Science and Technology Optical Imaging Laboratory Department of Biomedical EngineeringWashington University in Saint LouisSaint Louis63130-4899USA

A reflection-mod. photoacoustic microscope（PAM） for rat brain imaging in vivo is constructed.A pulsed.laser is used.as an excitation source,and.a focused.ultrasound.transd.cer is ad.pted.to collect the photoacoustic *** scanning is applied.to acquire three-d.mensional（3d. *** obtained.measurements of the lateral and.axial resolutions of the microscope are 45 and.15μm,*** imaging d.pth in the chicken breast tissue is 3.1 mm at a signal-to-noise ratio（SNR） of 20 d. without any signal *** imaging speed.is 30 A-line/*** results in vivo d.monstrate the capability of 3d.imaging of the brain vessels of the rat after removing the skull.

关键词： Acoustic microscopes Laser excitation Photoacoustic effect Photoacoustic microscopy Pulsed.laser applications Pulsed.lasers Signal to noise ratio Ultrasonic transd.cers

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