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neural Regeneration Research 2024年第4期19卷 715-716页

作者： Prakruthi Amar Kumar Jennifer n.Dulin Department of Biology Texas A&M UniversityCollege Station Texas A&M Institute for neuroscience Texas A&M UniversityCollege Station

neural stem and progenitor cell(nsPC)transpla ntation has emerged as a promis.n. therapeutic strategy for replacing lost neuronal populations and repairing damaged neural circuits following nervous system injury and disease.A great deal of experimental work has investigated the biology of nsPC grafting in preclinical animal models;more recently.

关键词： neural system injured

Targeting muscle to treat Charcot-Marie-Tooth disease

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neural Regeneration Research 2024年第8期19卷 1653-1654页

作者： David Villarroel-Campos James.n.sleigh Department of neuromuscular Diseases and UCL Queen square Motor neuron Disease Centre UCL Queen Square Institute of NeurologyUniversity College LondonLondonUK UK Dementia Research Institute University College LondonLondonUK

Charcot-Marie-Tooth disease(CMT)is a hereditary peripheral neuropathy caus.n. muscle weakness/wasting and s.n.ory dysfunction predominantly in limb *** patients display gait abnormalities,foot deformities,loss of s.n.... 详细信息

关键词： Marie s.n.ation neuropathy

solar-assisted photocatalytic water splitting us.n. defective UiO-66 solids from modulated s.n.hesis

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nano Research 2024年第5期17卷 4134-4150页

作者： Celia M.Rueda-navarro María Cabrero-Antonino Paula Escamilla Valentín Díez-Cabanes Dong Fan Pedro Atienzar Belén Ferrer Ignacio Vayá Guillaume Maurin Herme G.Baldoví sergio navalón Departamento de Química Universitat Politècnica de ValènciaCamino de Vera s/nValencia 46022Spain Instituto de Ciencia Molecular(ICMOL) Universitat de ValènciaPaterna 46980Spain ICGM Univ.MontpellierCNRSENSCMMontpellier34095France Instituto de Tecnología Química(UPV-CsIC) Universitat Politècnica de ValènciaAvenida de los Naranjos s/nValencia 46022Spain

Metal-organic frameworks(MOFs)are attracting increas.n. interests as photocatalysts for solar-driven hydrogen production from *** paper reports on a comparative study of us.n. either acetic acid(AA)or trifluoroacetic acid(TFA)as the repres.n.ative UiO-66 organic modulators for s.n.hesizing visible light responsive UiO-66(Zr)-X(X:nH_(2) or nO_(2))photocatalysts for water *** results show that photocatalytic hydrogen generation from a water/methanol mixture can be improved by varying the nature and amount of the modulator employed to prepare the different UiO-66(Zr)-X(X:nH_(2) or nO_(2))solid ***-66(Zr)-nH_(2) was the most active photocatalyst,followed by UiO-66(Zr)-nO_(2),both prepared with 12 equivalents of AA with respect to the organic *** UiO-66(Zr)-nH_(2) solid was more active than the parent MOF in photocatalytic overall water splitting(OWs)(H_(2) and O_(2) production of 450 and 160μmol·g^(-1),respectively,in 5 h;apparent quantum yield(AQY)at 400 nm of 0.06%)in the abs.n.e of methanol and compares favourably with analogous *** on the photocatalytic activity of the most active solids of both series was obtained by means of a series of techniques,including ultraviolet-visible(UV-vis)diffuse reflectance,X-ray photoelectron spectroscopy(XPs),laser flash photolysis(LFP),electron spin res.n.nce(EsR),photoluminescence and photoelectrochemical measurements together with density functional theory(DFT)*** results showed that organic acid modulators can be used to enhance the photocatalytic activity of miss.n. linker UiO-66 defective materials in solar-powered water splitting.

关键词： heterogeneous photocatalysis metal-organic frameworks(MOFs) UiO-66 materials carboxylic acid modulators water splitting solar light

Morphology of crater and caldera lakes in the Far Eastern region of Russia and the features of their development

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Journal of Mountain science 2024年第4期21卷 1246-1258页

作者： Dmitrii n.KOZLOV Ekaterina V.LEBEDEVA Institute of Marine Geology and Geophysics Far Eastern Branch of the Russian Academy of SciencesYuzhno-Sakhalinsk 693022Russia Institute of Geography Russian Academy of SciencesMoscow 119017Russia

Volcanic lakes in the Kuril-Kamchatka region are difficult to access,and for this reas.n.they remain poorly studied,with only scattered and brief data *** authors have conducted a study of 10 lake bas.n. us.n. modern digital echolocation survey techniques and have also compiled and summarized published data for 15 lakes in the region,calculating their main morphometric *** has been established that many caldera lake bas.n. are modified by young explosive funnels,extrusive or effusive domes,and exhibit traces of hydrothermal *** lakes of the same genetic type in the Kuril-Kamchatka region are similar in depth and depression forms,the group of caldera lakes shows less homogeneity across all morphometric *** was found that the absolute heights of the reservoirs on Kamchatka Peninsula are generally greater than those on the Kuril Islands,as is often the case with the size of their *** volcanic lakes under study can rapidly change their volume and shape under the influence of endogenous *** the first time for this region,on the base of repeated observations,underwater extrusive dome rate growth and the approximate rates of 2 lake level changes were *** observations of lakes in the Ksudach calderas(Kamchatka)and on simushir Island indicate approximate rates of level changes:a decrease ranging within 0.5-0.6 m per year(over a 27-year observation interval)and an increase reaching up to 0.26 m per year(over a 48-year interval).The growth rate of the underwater extrusive dome in Lake shtyubel has averaged 1-1.6 m per year over the past 25 *** analysis has facilitated the first generalization regarding the morphology and developmental features of crater and caldera lakes in the Kuril-Kamchatka region of Russia,repres.n.ing an important step in their *** results obtained will provide a solid foundation for subsequent research in this region and may be of interest to researchers studying

关键词： Volcanic lakes Echolocation survey Volcanism Gashydrotherms Kamchatka Kuril Islands

nonlinear-Optical Analogies in nuclear-Like soliton Reactions:selection Rules.n.nlinear Tunneling and sub-Barrier Fusion–Fission

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Chinese Physics Letters 2024年第8期41卷 1-7页

作者： T.L.Belyaeva V.n.serkin Universidad Autonoma del Estado de Mexico Av.Instituto Literario 100C.P.50000TolucaMexico Benemerita Universidad Autonoma de Puebla Av.4 Sur 104C.P.72001PueblaMexico

The main goal of our study is to reveal unexpected but intriguing analogies aris.n. between optical solitons and nuclear physics,which still remain hidden from *** consider the main cornerstones of the concept of nonlinear optics of nuclear reactions and the well-dressed repulsive-core *** the base of this model,we reveal the most intriguing properties of the nonlinear tunneling of nucleus-like solitons and the soliton selfinduced sub-barrier transparency *** describe novel interesting and stimulating analogies between the interaction of nucleus-like solitons on the repulsive barrier and nuclear sub-barrier *** main finding of this study concerns the conservation of total number of nucleons(or the baryon number)in nuclear-like soliton *** show that inelastic interactions among well-dressed repulsive-core solitons arise only when a“cloud”of“dress.n.”spectral side-bands appears in the frequency spectra of the *** property of nucleus-like solitons is directly related to the nuclear density distribution described by the dimensionless small shape-squareness *** the Fourier spectra of nucleus-like solitons are similar to the nuclear form *** show that the nuclear-like reactions between well-dressed solitons are realized by“exchange”between“particle-like”side bands in their spectra.

关键词： solitons soliton nonlinear

RBC aggregation, deformation and adhesion to endothelium: Role of nitric oxide derived from L-Arginine and sodium nitroprusside

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JOURnAL OF InnOVATIVE OPTICAL HEALTH sCIEnCEs 2024年第5期17卷 53-65页

作者： Maksimov, M. K. Ermolinskiy, P. B. scheglovitova, O. n. sklyankina, n. n. Muravyov, A. V. Lugovtsov, A. E. Priezzhev, A. V. Moscow MV Lomonosov state Univ Fac Phys bld1Subbldg 2 Leninskie gory Moscow 11991 Russia nF Gamaleya natl Res Ctr Epidemiol & Microbiol 18 Gamaleya St Moscow 123098 Russia KD Ushinsky Yaroslavl state Pedag Univ 108-1 Respublikanskaya St Yaroslavl 150000 Russia

Red blood cells (RBCs) are the most abundant human blood cells. RBC aggregation and deformation strongly determine blood viscosity which impacts hemorheology and microcirculation. In turn, RBC properties depend on different endogenous and exogenous factors. One such factor is.n.tric oxide (nO), which is mainly produced by endothelial cells (EC) from L-arginine amino acid in the circulatory system. s.n.e the mechanisms of the RBC-endothelium interplay are not clear up to date and considering its possible clinical importance, the aims of this study are to investigate in vitro: (1) The effect of L-arginine induced nO on RBC aggregation and adhesion to endothelium; (2) the nO effect on RBC aggregation and deformation induced by L-arginine and sodium nitroprusside without the pres.n.e of endothelium in the samples. The RBC aggregation and adhesion to a monolayer of EC were studied us.n. optical tweezers (OT). The RBC deformability and aggregation without endothelium in the samples were studied us.n. the flow chamber method and Myrenne aggregometer. We confirmed that nO increases deformability and decreases aggregation of RBCs. We showed that the soluble guanylate cyclase pathway appears to be the only nO signaling pathway involved. In the samples with the endothelium, the "bell-shaped" dependence of RBC aggregation force on L-arginine concentration was observed, which improves our knowledge about the process of nO production by endothelium. Additionally, data related to L-arginine accumulation by endothelium were obtained: necessity of the pres.n.e of extracellular L-arginine stated by other authors was put under question. In our study, nO decreased the RBC-endothelium adhesion, however, the tendency appeared to be weak and was.n.t confirmed in another set of experiments. To our knowledge, this is the first attempt to measure the forces of RBC adhesion to endothelium monolayer with OT.

关键词： Red blood cells aggregation L-arginine endothelium optical tweezers Myrenne flow chamber RED-BLOOD-CELL VAsCULAR EnDOTHELIUM sICKLE ERYTHROCYTEs sHEAR-sTREss DEFORMABILITY ADHEREnCE PROsTACYCLIn ELAsTICITY MECHAnIsM sTORAGE

Accuracy Enhancement of the Folin-Ciocalteu Method for Propolis

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American Journal of Analytical Chemistry 2024年第8期15卷 253-267页

作者： Rosilene s. n. Paganotti Paulo J. s. Barbeira Instituto Federal de Educao Cincia e Tecnologia de Minas GeraisCampus Formiga Formiga MG Brazil Departamento de Qumica Instituto de Cincias Exatas Universidade Federal de Minas Gerais Belo Horizonte MG Brazil

This study pres.n.s an optimization of the Folin-Ciocalteu spectrophotometric method for the determination of total phenol content. Multivariate optimization us.n. factorial planning 22 with a central point and central composite planning was constructed to evaluate the influence of variables in the process and maximize radiation absorption with minimal radiation scattering caused by solid formation. X-ray fluorescence and X-ray diffraction spectrometry were used to evaluate the chemical composition of solids formed and nephelometric and spectrophotometric studies were also used to evaluate whether the type, origin, dilution and dry extract contents of commercial propolis extracts would significantly influence the increase in radiation scattering and absorption. The optimized methodology added several advantages, such as reduction of reagents, time analysis, and higher accuracy.

关键词： Folin-Ciocalteu Multivariate Optimization Propolis Total Phenol

A Learning-based Control Framework for Fast and Accurate Manipulation of a Flexible Object

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Journal of Bionic Engineering 2024年第4期21卷 1761-1774页

作者： Junyi Wang Xiaofeng Xiong silvia Tolu stanislav n.Gorb Department of Electrical and Photonics Engineering Technical University of DenmarkAnker Engelunds Vej 101Kongens LyngbyZealand2800Denmark sDU Biorobotics Mærsk Mc-Kinney Møller InstituteUniversity of Southern Denmark(SDU)Campusvej 55Odense MFunen5230Denmark Department Functional Morphology and Biomechanics Zoological InstituteUniversity of KielAm Botanischen Garten 1–9D-24118KielSchleswig-HolsteinGermany

This paper pres.n.s a learning-based control framework for fast(3 times of others).Besides,motion tracking errors are greatly reduced to 13.29 and 22.36 of constant impedance control by the OIAC of the proposed *** ad... 详细信息

This paper pres.n.s a learning-based control framework for fast(s)and accurate manipulation of a flexible object,i.e.,whip *** framework consists of a motion planner learned or optimized by an algorithm,Online Impedance Adaptation Control(OIAC),a sim2real mechanism,and a visual feedback *** experimental results show that a soft actor-critic algorithm outperforms three Deep Reinforcement Learning(DRL),a nonlinear optimization,and a genetic algorithm in learning generalization of motion *** can greatly reduce average learning trials(tos)and maximize average rewards(to>3 times of others).Besides,motion tracking errors are greatly reduced to 13.29 and 22.36 of constant impedance control by the OIAC of the proposed *** addition,the trajectory similarity between simulated and physical whips is *** pres.n.ed framework provides a new method integrating data-driven and physics-based algorithms for controlling fast and accurate arm manipulation of a flexible object.

关键词： Deep reinforcement learning Deformable object manipulation Variable impedance control sim2real Visual tracking

structural changes in the obese brain

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neural Regeneration Research 2024年第12期19卷 2561-2562页

作者： Anna R.R.Da Conceicao Marcelo n.n.Vieira Fernanda G.De Felice D’Or Institute for Research and Education Rio de JaneiroBrazil Institute of Medical Biochemistry Leopoldo De Meis Federal University of Rio de JaneiroRio de JaneiroBrazil Centre for neuroscience studies Department of Biomedical and Molecular Sciences&Department of PsychiatryQueen’s UniversityKingstonONCanada

Obesity repres.n.s a major global health concern,with widespread growing prevalence and severe consequences for the quality of life and life expectancy of affected individuals and for the economic burden of healthcare systems(Prospective studies Collaboration,2009).Obesity is a well-established risk factor for a variety of conditions including metabolic,vascula r,and heart diseases,and seve ral types of cancer(Prospective studies Collaboration,2009).

关键词： diseases consequences prevalence

Two-dimensional magnetic materials for spintronic applications

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nano Research 2024年第2期17卷 743-762页

作者： shivam n.Kajale Jad Hanna Kyuho Jang Deblina sarkar MIT Media Lab Massachusetts Institute of TechnologyCambridgeMA 02139USA Department of Information Technology and Electrical Engineering ETH ZürichZürich8092Switzerland

spintronic devices are driving new paradigms of bio-inspired,energy efficient computation like neuromorphic stochastic computing and in-memory *** have also emerged as key candidates for non-volatile memories for embedded systems as well as alternatives to persistent *** meet the growing demands from such diverse applications,there is.n.ed for innovation in materials and device designs which can be scaled and adapted according to the ***-dimensional(2D)magnetic materials address challenges facing bulk magnet systems by offering scalability while maintaining device integrity and allowing efficient control of *** this review,we highlight the progress made in experimental studies on 2D magnetic materials towards their integration into spintronic *** provide an account of the various relevant material discoveries,demonstrations of current and voltage-based control of magnetism and reported device systems,while also discuss.n. the challenges and opportunities towards integration of 2D magnetic materials in commercial spintronic devices.

关键词： spintronics van der Waals magnetic tunnel junction(MTJ) spin-orbit torque magnetism