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Black hole shadows in Einstein-Bel-robinson gravity

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Chinese Physics C 2024年第5期48卷 272-283页

作者： B.Hamil B.C.lütfüoğlu laboratoire de Physique Mathématique et Subatomique Facultédes Sciences ExactesUniversitéConstantine 1ConstantineAlgeria Department of Physics University of Hradec KrálovéRokitanského 6250003 Hradec KrálovéCzechia

Gravity models given by higher-order scalar curvature corrections are believed to bear important consequences. Einstein-Bel-robinson (EBr) gravity with quartic curvature modification motivated Sajadi et al. to explore static spherically symmetric black hole solutions using perturbative methods. In this study, inspired by their work, we investigate AdS black hole shadows in EBr gravity and demonstrate how the gravity parameter alters the energy emission rate. Finally, we address the same problem in the presence of plasma, because the black holes are thought to be surrounded by a medium that changes the geodesic of photons.

关键词： black hole shadows Einstein-Bel-robinson gravity plasma

Proteomic response of Phaeocystis globosa to nitrogen limitation

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Journal of Oceanology and limnology 2024年第1期42卷 141-149页

作者： Haisu lIU ruiwang WEI Qiangyong lEI lei CUI Songhui lÜ Key laboratory of Eutrophication and red Tide Prevention Research Center for Harmful Algae and Marine BiologyJinan UniversityGuangzhou 510632China Southern Marine Science and Engineering Guangdong laboratory Zhuhai 519082China National Engineering laboratory of Electronic and Information Standardization Shenzhen 518057China

Phaeocystis globosa is an important unicellular eukaryotic alga that can also form *** can cause massive harmful algal blooms and plays an important role in the global carbon or sulfur *** far,the ecophysiology of *** has been investigated by numerous ***,the proteomic response of *** to nitrogen depletion remains largely *** compared four protein preparation methods of *** for two-dimensional electrophoresis(2-DE)(Urea/Triton X-100 with trichloroacetic acid(TCA)/acetone precipitation;TCA/acetone precipitation;radio Immuno Precipitation Assay(rIPA)with TCA/acetone precipitation;and Tris buffer).results show that the combination of rIPA with TCA/acetone precipitation had a clear gel background and showed the best protein spot separation effect,based on which the proteomic response to nitrogen depletion was studied using *** addition,we identified six differentially expressed proteins whose relative abundance increased or decreased more than 1.5-fold(Proteins could not be identified,which might be attributed to the lack of genomic sequences of *** nitrogen limitation,replication protein-like,rNA ligase,and sn-glycerol-3-phosphate dehydrogenase were reduced,which may decrease the DNA replication level and ATP production in *** *** increase of endonucleaseⅢand transcriptional regulator enzyme may affect the metabolic and antioxidant function of *** cells and induce cell *** findings provide a basis for further proteomic study of *** and the optimization of protein preparation methods of marine microalgae.

关键词： Phaeocystis globosa nitrogen limitation proteomic response two-dimensional electrophoresis

Effect of cold-working on corrosion induced damage in lug joints

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Defence Technology（防务技术） 2024年第6期36卷 175-182页

作者： ramanath M.N Chikmath l. Murthy H. Department of Aerospace Engineering Indian Institute of Technology-MadrasChennai 600036India Department of Aeronautical Engineering KLS Gogte Institute of TechnologyBelagavi 590008India

lug joints are preferred joineries for transferring heavy loads to parent components in aerospace *** experience corrosion due to environmental conditions,improper surface finishes and rubbing displacement between the pin and *** causes damage of different sizes and shapes near the *** degradation due to corrosion-induced damage is modelled as a through-pit at one of the identified critical locations through stress *** effect of this pit on fatigue crack initiation life is ***-hole is pre-stressed by cold-working and the benefits of inducing plastic wake on the intended performance of the lug joint during the damages due to corrosion are brought out and compared with non-cold-worked *** analysis is performed on this lug joint with *** results obtained highlight the benefits of cold-working and the methodology can be extended to damage growth and analyse the effect of surface treatments for better structural integrity of components of aerospace vehicles.

关键词： lug joint Corrosion Crack initiation Cold-working Structural integrity

Antibacterial HA-coatings on bioresorbable Mg alloy

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Journal of Magnesium and Alloys 2024年第5期12卷 1965-1985页

作者： K.V.Nadaraia D.V.Mashtalyar M.A.Piatkova A.I.Pleshkova I.M.Imshinetskiy M.S.Gerasimenko E.A.Belov V.V.Kumeiko D.N.Kozyrev K.A.Fomenko V.V.Mostovaya B.r.Torpanov A.r.Biktimirov I.S.Osmushko S.l.Sinebryukhov S.V.Gnedenkov Institute of Chemistry FEB rAS 159 Pr.100-letiya VladivostokaVladivostok 690022Russia Far Eastern Federal University 10 Ajax BayRussky IslandVladivostok 690922Russia A.V.Zhirmunsky National Scientific Center of Marine Biology FEB rAS 17 St.PalchevskogoVladivostok 690041Russia regional Clinical Dermatovenerological Dispensary 18 V St.GamarnikaVladivostok 690033Russia NMIC“Treatment and rehabilitation Center” 3 Ivankovskoe highwayMoscow 125367Russia

In this study,a calcium-phosphate coating was formed on a Mg-Mn-Ce alloy by the plasma electrolytic oxidation(PEO).The antibiotic vancomycin,widely used in the treatment of infections caused by Staphylococcus aureus(***),was impregnated into the *** with vancomycin showed high bactericidal activity against *** mechanical and electrochemical properties of the formed coatings were studied,as well as in vitro cytotoxicity tests and in vivo tests on mature male rats were *** to SEM,EDS,XrD and XPS data,coatings had a developed morphology and contained hydroxyapatite,which indicates high *** analysis of roughness of coatings without and with vancomycin did not reveal any differences,confirming the high roughness of the *** electrochemical tests,an increase in corrosion resistance by more than two times after the application of PEO coatings was *** to the results of an in vivo study,after 28 days of the implantation of samples with calcium phosphate PEO coating and vancomycin,no signs of inflammation were observed,while an inflammatory reaction developed in the area of implantation of bare alloy,followed by *** release tests from the coatings show a sharp decrease in the concentration of the released antibiotic on day 7 and then a gradual decrease until day *** the experiment,no significant deviations in the condition and behavior of the animals were observed;clinical tests did not reveal a systemic toxic reaction.

关键词： Bioactive coatings Biocompatibility Mg alloy Plasma electrolytic oxidation Hydroxyapatite Vancomycin

A review of whole-medical systems and holistic care approach for type 2 diabetes and associated metabolic syndrome

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Journal of Integrative Medicine 2024年第3期22卷 199-209页

作者： loveness Makoni Idah T.Manduna Alaisa l.Mbiriri Department of Health Sciences Faculty of Health and Environmental Health SciencesCentral University of TechnologyFree State20 President Brand StreetPrivate bag X20539Bloemfontein 9300South Africa Centre for Applied Food Sustainability and Biotechnology(CAFSaB) Faculty of Health and Environmental Health SciencesCentral University of TechnologyFree State20 President Brand StreetPrivate bag X20539Bloemfontein 9300South Africa Adventist Development and relief Agency(ADrA) 5 Cecil RoadGreendaleHarare 0000Zimbabwe

Whole-person care and holistic care approach has been proposed for complementary and integrative health care for type 2 diabetes ***,some doubts still exist on the feasibility of replicating processes followed in clinical trials and observational studies in real-world *** narrative literature review summarized and assessed existing clinical evidence(clinical trials,observational studies,and case reports)describing holistic and integrated care approach in adult and adolescent individuals with type 2 diabetes mellitus in clinical *** goal was to highlight existing evidence for implementation and outcomes of whole-medical systems and holistic integrated care approach for type 2 diabetes mellitus.A nonsystematic literature search was performed on Google Scholar,PubMed,Web of Science,ProQuest and ScienceDirect to identify clinical evidence from different parts of the world,evaluating the use of whole-medical systems and/or holistic care interventions in clinical practice for management of type 2 diabetes *** keywords were used in the *** were analyzed using content analysis and simple descriptive statistics(percentages).Most of the studies(64%)were mainly conducted in Eastern countries(India,China and Israel)while 36%of the studies were conducted in the Western countries(USA,Netherlands,Canada and Mexico).lifestyle medicine and integrated naturopathy were shown to be the commonly used whole-medical systems for type 2 diabetes mellitus *** improvements in type 2 diabetes parameters,medication use,other symptoms,and overall feeling of wellness were observed in all *** review study revealed limited utilization and/or documentation of whole-medical systems or holistic care treatments for type 2 diabetes mellitus in regions of the world other than eastern *** medicine,naturopathy,yoga,Ayurveda and traditional Chinese medicine were shown to be effective for type 2 diabetes mellitu

关键词： Complementary and alternative medicine Holistic care Integrative medicine Type 2 diabetes mellitus Team-based intervention

Application of Gaussian Beam Summation Migration in reflected In-seam Wave Imaging

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Acta Geologica Sinica(English Edition) 2024年第1期98卷 276-284页

作者： HAN Jianguang lÜQingtian ZHANG Zhiheng YANG Shun WANG Shuo Chinese Academy of Geological Sciences Beijing 100037China Shandong Taishan resources Exploration Co. Ltd.Jinan 250104China

The geological conditions for coal mining in China are complex,with various structural issues such as faults and collapsed columns seriously compromising the safety of coal mine ***-seam wave exploration is an effective technique for acquiring detailed information on geological structures in coal seam working ***,the existing reflected in-seam wave imaging technique can no longer meet the exploration precision requirements,making it imperative to develop a new reflected in-seam wave imaging *** study applies the Gaussian beam summation(GBS)migration method to imaging coal seams'reflected in-seam wave ***,with regard to the characteristics of the reflected in-seam wave data,methods such as wavefield removal and enveloped superposition are employed for the corresponding wavefield separation,wave train compression and other processing of reflected in-seam ***,imaging is performed using the GBS migration *** feasibility and effectiveness of the proposed method for reflected in-seam wave imaging are validated by conducting GBS migration tests on 3D coal-seam fault models with different dip angles and *** applying the method to reflected in-seam wave data for an actual coal seam working face,accurate imaging of a fault structure is obtained,thereby validating its practicality.

关键词： reflected in-seam wave Gaussian beam summation migration numerical tests fault

Mogroside IIE,an in vivo metabolite of sweet agent,alleviates acute lung injury via Pla2g2a-EGFr inhibition

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Food Science and Human Wellness 2024年第1期13卷 299-312页

作者： Weichao lü Guoqing ren Kuniyoshi Shimizu renshi li Chaofeng Zhang State Key laboratory of Natural Medicines School of Traditional Chinese PharmacyChina Pharmaceutical UniversityNanjing 211198China Sino-Jan Joint lab of Natural Health Products research School of Traditional Chinese PharmacyChina Pharmaceutical UniversityNanjing 211198China Faculty of Agriculture Kyushu UniversityFukuoka 819-0395Japan

In the face of increasingly serious environmental pollution,the health of human lung tissues is also facing serious *** IIE(M2E)is the main metabolite of sweetening agents mogrosides from the anti-tussive Chinese herbal Siraitia *** study elucidated the anti-inflammatory action and molecular mechanism of M2E against acute lung injury(AlI).A lipopolysaccharide(lPS)-induced AlI model was established in mice and MH-S cells were employed to explore the protective mechanism of M2E through the western blotting,co-immunoprecipitation,and quantitative real time-PCr *** results indicated that M2E alleviated lPS-induced lung injury through restraining the activation of secreted phospholipase A2 type IIA(Pla2g2a)-epidermal growth factor receptor(EGFr).The interaction of Pla2g2a and EGFr was identified by *** addition,M2E protected AlI induced with lPS against inflammatory and damage which were significantly dependent upon the downregulation of AKT and m TOr via the inhibition of ***2g2a may represent a potential target for M2E in the improvement of lPS-induced lung injury,which may represent a promising strategy to treat AlI.

关键词： Mogroside IIE Acute lung injury Secreted phospholipase A2 type IIA(Pla2g2a) Epidermal growth factor receptor(EGFr)

Oligodendroctyes:the forgotten players of diabetes pathophysiology

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Neural regeneration research 2024年第11期19卷 2349-2350页

作者： Juan Antonio lópez-Villodres Beatriz García-Díaz Departamento Fisiología Humana Histología HumanaAnatomía Patológica y Educación Física y DeportivaFacultad de MedicinaUniversidad de MálagaMálagaSpain UGC Neurociencia.Instituto de Investigación Biomédica de Málaga y Plataforma en Nanomedicina(IBIMA Plataforma Bionand) MálagaSpain

Oligodendrocytes(Ols),glial cells that provide myelin sheaths to axons in the central nervous system(CNS),have a dual ***,this myelin fatty cover around the axons protects the nerves and is crucial for the saltatory propagation of action *** and not less important,Ols provide trophic support to neurons and ***,Ol metabolism is important for Ol well-being and the proper accomplishment of their functions,and Ol metabolism energetics directly affect the energy metabolism of neighboring neurons.

关键词： metabolism nerves myelin

Electro-optic tuning in composite silicon photonics based on ferroionic 2D materials

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light(Science & Applications) 2024年第5期13卷 852-864页

作者： Ghada Dushaq Solomon Serunjogi Srinivasa r.Tamalampudi Mahmoud rasras Department of Electrical and Computer Engineering New York University Abu DhabiP.O.Box 129188Abu DhabiUnited Arab Emirates NYU Tandon School of Engineering New York UniversityNew YorkNYUSA

Tunable optical materials are indispensable elements in modern optoelectronics,especially in integrated photonics circuits where precise control over the effective refractive index is essential for diverse ***-dimensional materials like transition metal dichalcogenides(TMDs)and graphene exhibit remarkable optical responses to external ***,achieving distinctive modulation across short-wave infrared(SWIr)regions while enabling precise phase control at low signal loss within a compact footprint remains an ongoing *** this work,we unveil the robust electro-refractive response of multilayer ferroionic two-dimensional CuCrP2S6(CCPS)in the near-infrared wavelength *** integrating CCPS into silicon photonics(SiPh)microring resonators(Mrr),we enhance lightmatter interaction and measurement sensitivity to minute phase and absorption *** show that electrically driven Cu ions can tune the effective refractive index on the order of 2.8×10−3 rIU(refractive index unit)while preserving extinction ratios and resonance ***,these devices exhibit low optical losses and excellent modulation efficiency of 0.25 *** with a consistent blue shift in the resonance wavelengths among all devices for either polarity of the applied *** results outperform earlier findings on phase shifters based on ***,our study demonstrates distinct variations in electro-optic tuning sensitivity when comparing transverse electric(TE)and transverse magnetic(TM)modes,revealing a polarization-dependent response that paves the way for diverse applications in light *** combined optoelectronic and ionotronic capabilities of two-terminal CCPS devices present extensive opportunities across several *** potential applications range from phased arrays and optical switching to their use in environmental sensing and metrology,optical imaging systems,and neuromorphic systems in light-sensitive artificial synapses.

关键词： tuning polarization refractive