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Advances in Polar Science 2024年

作者： Sergio SOTO AcU?A alexander O.VARGAS Jonatan kALUZA consejo Nacional de Investigaciones científicas y Técnicas (cONIcET) Red Paleontológica U-chile，Departamento de Biología， Facultad de ciencias， Universidad de chile Fundación de Historia Natural Félix de Azara， Universidad Maimónides Escuela de Geología，Facultad de ciencias， Ingeniería y Tecnología， Universidad Mayor， Providencia

The first dinosaur discovered in the Antarctic continent was the ankylosaur Antarctopelta oliveroi in the 1980s. Nevertheless， since then several hypotheses of phylogenetical relationships have been proposed because these have been depended on how the skeletal remains have been interpreted. The main obstacle for clarifying its phylogenetic position is that many portions of the skeleton remain unknown， in addition to the presence of unknown characters in typical ankylosaurs. considered an ankylosaurid， nodosaurid， or even a chimaera， a recent proposal based on mostly complete material of a new ankylosaur from chilean Patagonia provided support for a novel phylogenetic hypothesis: Antarctopelta and other southern ankylosaurs are an early branching clade， the Parankylosauria， whose origin probably dates to the Late Jurassic. In the light of this new view， a redescription of the available skeletal remains is provided together with a new reconstruction of the first Antarctic dinosaur known to the science community.

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The Effect of a Monatomic Layer on a Surface on the Transition Radiation

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Journal of High Energy Physics, Gravitation and cosmology 2024年第2期10卷 710-723页

作者： alexander N. Safronov Obukhov Institute of Atmospheric Physics Russian Academy of Sciences Moscow Russia

The transition radiation of a charged particle crossing the interface of two media having a monatomic impurity layer is investigated. It is shown that at sliding angles of incidence of a particle on the boundary of the media, the transition radiation is mainly determined by the properties of the surface layer. The possibility of using transition radiation to study the surface of substances is discussed. In addition, due to the hard radiation present in space, this research may be important for the use of light monoatomic layers as a material for satellite antennas, “solar sails” and cover layers in a future space (interstellar) mission.

关键词： Relativistic charged Particle Transition Radiation Monatomic Layer Spectral Angular Distribution of Radiation Sliding Angle Investigation of Thin Films Interstellar Mission

Life Origin in the Milky Way Galaxy: I. The Stellar Nucleogenesis of Elements Necessary for the Life Origin

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Journal of High Energy Physics, Gravitation and cosmology 2024年第2期10卷 647-680页

作者： alexander N. Safronov Obukhov Institute of Atmospheric Physics Russian Academy of Sciences Moscow Russia

chemical elements in space can be synthesized by stellar nuclear reactors. Studying the dynamics of processes occurring in the stars introduces a concept of the ensemble-averaged stellar reactor. For future interstellar missions, the terrestrial and solar abundances were compared with considerable number of stars allocated in the ~200 pc solar neighborhood. According to the value of the effective temperature, four stellar classes are distinguished, for which the correlation coefficients and standard deviation are calculated. The statement about the possibility of transferring heavy elements synthesized by stars over long distances in space has been completely refuted. There is no immutability of the distribution of elements on neighboring stars and in the Solar System. It is shown that chemical elements are mainly synthesized inside each stellar reactor. The theory of the buoyancy of elements is generalized to stars. It has been suggested that stars overheat due to a shift in the parameters of nuclear processes occurring inside stars, which leads to the synthesis of heavy elements.

关键词： Stellar Nucleogenesis Solar Abundance Ensemble-Averaged Stellar Reactor Stellar Abundance Interstellar Mission Habitability DNA-Star

Why the‘Next china’Is Still china

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Beijing Review 2024年第20期67卷 24-25页

作者： alexander Ayertey Odonkor 不详

In March,Apple opened its largest retail store on the chinese mainland in Shanghai-the company's second largest flagship store after its Fifth Avenue outlet in New York city,the *** new addition brings Apple's store tally in Shanghai and the chinese market to eight and 57,respectively-a significant milestone for the company,which opened its first store in china in 2008.

关键词： store retail Avenue

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What Slowdown?

chinAfrica 2024年第7期16卷 44-45页

作者： alexander AYERTEY ODONkOR 不详

china remains a key source of growth and profits for many multinationals In March,Apple opened its largest retail store on the chinese mainland in Shanghai-the company’s second-largest flagship store after its Fifth Avenue outlet in New *** new addition brings Apple’s store tally in Shanghai and the chinese market to eight and 57,respectively,a significant milestone for the company,which opened its first store in china in 2008.

关键词： store retail Avenue

Life Origin in the Milky Way Galaxy: III. Spatial Distribution of Overheated Stars in the Solar Neighborhood

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Journal of High Energy Physics, Gravitation and cosmology 2024年第2期10卷 693-709页

作者： alexander N. Safronov Obukhov Institute of Atmospheric Physics Russian Academy of Sciences Moscow Russia

A concept of ensemble averaged stellar reactors is developed to study the dynamics of processes occurring in stars, allocated in the ~200 pc solar neighborhood. According to the effective temperature value, four stellar classes are identified, for which the correlation coefficients and standard deviation are counted. The theory of the buoyancy terrestial elements is generalized to stellar systems. It was suggested that stars are over-heated due to the shift parameters of the nuclear processes occurring inside the stars, which leads to the synthesis of transuranium elements until the achievement of a critical nuclear mass and star explosion. The heavy transuranium elements sink downward and are concentrated in the stellar depth layers. The physical explanation of the existence of the critical chandrasekhar star limit has been offered. Based on the spatial analysis of overheated stars, it was suggested that the withdrawal of the stellar reactor from the equilibrium state is a consequence of extragalactic compression inside the galaxy arm due to the arm spirality (not to be confused with the spirality of the galaxy itself).

关键词： Stellar Nucleogenesis Ensemble-Averaged Stellar Reactor Overheated Stars chandrasekhar Stellar Limit Arm Spirality

Life Origin in the Milky Way Galaxy: II. Scanning for Habitable Stellar Systems on Behalf of Future Space Missions

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Journal of High Energy Physics, Gravitation and cosmology 2024年第2期10卷 681-692页

作者： alexander N. Safronov Obukhov Institute of Atmospheric Physics Russian Academy of Sciences Moscow Russia

The possibility of the life origin in the stellar systems, located at a distance of ~200 pc from the solar system, was investigated. The stars, in the spectrums of which c (carbon), O (oxygen), N (nitrogen), and P (phosphorus) are found, are called DNA-stars. Based on stellar abundances a new method for searching for habitable exoplanets has been developed and a list of 48 DNA-stars in the solar neighborhood, on which life is possible, has been defined. The quota of DNA-stars is equal 1.3% of the total amount of Hypatia Stellar catalog. Only three DNA-stars out of selected 48 stars belong to the spectral class as our Sun (G2V). The closest to the solar system is the DNA-star with the number HIP 15510, which belongs to the G8V class and is 6 pc away from the solar system. Nine DNA-stars, which have the highest chemical similarity with solar spectrum, were identified. It is identified that one of these nine stars, HIP 24681, has six planets.

关键词： Interstellar Mission Stellar Abundance Habitability Hypatia Stellar catalog DNA-Star

construction of Dynamic Alloy Interfaces for Uniform Li Deposition in Li-Metal Batteries

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Energy & Environmental Materials 2024年第3期7卷 64-71页

作者： Qingwen Li Yulu Liu Ziheng Zhang Jinjie chen Zelong Yang Qibo Deng alexander V.Mumyatov Pavel A.Troshin Guang He Ning Hu Tianjin key Laboratory of Advanced Functional Porous Materials Institute for New Energy Materials and Low-Carbon TechnologiesSchool of Materials Science and EngineeringTianjin University of TechnologyTianjin 300384China Tianneng co.Ltd Huzhou 313100China key Laboratory of Hebei Province on Scale-span Intelligent Equipment Technology Tianjin Key Laboratory of Power Transmission and Safety Technology for New Energy Vehiclesand School of Mechanical EngineeringHebei University of TechnologyTianjin 300401China Federal Research center for Problems of chemical Physics and Medicinal chemistry Academician Semenov ave.1Chernogolovka Moscow Region 142432Russia Zhengzhou Research Institute of HIT 26 Longyuan East 7thJinshui DistrictZhengzhou 450000Henan Province China Harbin Institute of Technology 92 West Dazhi StreetNan Gang DistrictHarbin 150001China

It is well accepted that a lithiophilic interface can effectively regulate Li deposition behaviors,but the influence of the lithiophilic interface is gradually diminished upon continuous Li deposition that completely isolates Li from the lithiophilic ***,we perform in-depth studies on the creation of dynamic alloy interfaces upon Li deposition,arising from the exceptionally high diffusion coefficient of Hg in the amalgam solid *** a comparison,other metals such as Au,Ag,and Zn have typical diffusion coefficients of 10-20 orders of magnitude lower than that of Hg in the similar solid solution *** difference induces compact Li deposition pattern with an amalgam substrate even with a high areal capacity of 55 mAh cm^(-2).This finding provides new insight into the rational design of Li anode substrate for the stable cycling of Li metal batteries.

关键词： diffusion coefficient dynamic alloy interfaces Li dendrites Li solid solution uniform Li deposition

Impact of exercise on markers of B cell-related immunity:A systematic review

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Journal of Sport and Health Science 2024年第3期13卷 339-352,I0002页

作者： David Walzik Sergen Belen karen Wilisch Marie kupjetz Silvana kirschke Tobias Esser Niklas Joisten alexander Schenk Sebastian Proschinger Philipp Zimmer Division of Performance and Health(Sports Medicine) Institute for Sport and Sport ScienceTU Dortmund UniversityDortmund 44227Germany

Background:B cells represent a crucial component of adaptive immunity that ensures long-term protection from infection by generating pathogen-specific *** alters B cell counts and immunoglobulin levels,but evidence-based conclusions on potential benefits for adaptive immunity are *** systematic review assessed current literatures on the impact of acute exercise and exercise training on B cells,immunoglobulins,and markers of secretory immunity in human ***:According to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses(PRISMA)guidelines,MEDLINE,Web of Science,and Embase were searched on March 8,***-randomized controlled trials and crossover trials investigating the impact of acute exercise or exercise training on B cell counts and proportions,immunoglobulin levels,salivary flow rate,or secretory immunoglobulin A secretion rate were *** and reporting of exercise training studies were assessed using the Tool for the Assessment of Study Quality and reporting in *** characteristics,outcome measures,and statistically significant changes were summarized ***:Of the 67 eligible studies,22 applied acute exercise and 45 applied exercise *** included outcomes revealed significant alterations over time in acute exercise and exercise training context,but only a few investigations showed significant differences compared to control *** and plasma immunoglobulin A levels were most consistently increased in response to exercise ***:B cell-related outcomes are altered by acute exercise and exercise training,but evidence-based conclusions cannot be drawn with high confidence due to the large heterogeneity in populations and exercise ***-designed trials with large sample sizes are needed to clarify how exercise shapes B cell-related immunity.

关键词： Antibody B-lymphocyte Exercise Humoral immunity Immune system

correction method for moderate and severe degrees of hallux valgus associated with transfer metatarsalgia

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World Journal of Orthopedics 2024年第3期15卷 238-246页

作者： Amangasy Zhanaspayev Nurlan Bokembayev Marat Zhanaspayev Aidos Tlemissov Sabina Aubakirova alexander Prokazyuk Department of Traumatology and Orthopaedics The National Scientific Center of Traumatology and Orthopaedics Named after Academician Batpenov NDAstana 010000Kazakhstan Department of Traumatology and Paediatric Surgery Non-Commercial Joint-Stock Company“Semey Medical University”Semey 071400Kazakhstan Department of Habilitation and Rehabilitation Center of Habilitation and Rehabilitation of Persons with Disabilities of the Abai RegionSemey 071400Kazakhstan Department of Anaesthesiology and Resuscitation Center of Nuclear Medicine and OncologySemey 071400Kazakhstan

BAckGROUND Hallux valgus(HV)is a common foot deformity that manifests with increasing age,especially in *** associated foot pain causes impaired gait and decreases quality of *** and severe HV is a deformity that is charac-terized by the involvement of lesser rays and requires complex surgical *** this study,we attempted to develop a procedure for this *** To analyse the treatment results of patients who underwent simultaneous surgical correction of all parts of a static forefoot *** We conducted a prospective clinical trial between 2016 and 2021 in which 30 feet with moderate or severe HV associated with Tailor’s bunion and metatarsalgia were surgically treated via a new method involving surgical correction of all associated *** method included a modified Lapidus procedure,M2M3 tarsometatarsal arthrodesis,intermetatarsal fusion of the M4 and M5 bases,and the use of an original external fixation apparatus to enhance correction ***,postoperative,and final follow-up radiographic data and American Orthopaedic Foot and Ankle Society(AOFAS)scores were compared,and P valuesconsidered to indicate statistical *** The study included 28 females(93.3%)and 2 males feet(6.7%),20(66.7%)of whom had a moderate degree of HV and 10(33.3%)of whom had severe deformity.M2 and M3 metatarsalgia was observed in 21 feet,and 9 feet experienced pain only at *** mean follow-up duration was 11 *** patients had good correction of the HV angle[preoperative median,36.5 degrees,interquartile range(IQR):30-45;postoperative median,10 degrees,IQR:8.8-10;follow-up median,11.5 degrees,IQR:10-14;Pclinically negligible decrease in the corrected angles at the final follow-up,and the overall AOFAS score was significantly better(median,65 points,IQR:53.8-70;vs 80 points,IQR:75-85;PcONcLUSION The developed me

关键词： Hallux valgus Metatarsalgia Tailor’s bunion Lapidus procedure Proximal metatarsal osteotomy Splayfoot