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Mechanism of Thermally Radiative Prandtl Nanofluids and Double-Diffusive Convection in Tapered Channel on Peristaltic Flow with Viscous Dissipation and Induced Magnetic Field

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Computer Modeling in Engineering & Sciences 2024年第2期138卷 1501-1520页

作者： Yasir Khan Safia Akram maria Athar Khalid Saeed Alia Razia A.Alameer Department of Mathematics University of Hafr Al-BatinHafr Al-Batin31991Saudi Arabia MCS National University of Sciences and TechnologyIslamabadPakistan SEECS National University of Sciences and TechnologyIslamabadPakistan College of Aeronautical Engineering National University of Sciences and TechnologyIslamabadPakistan

The application of mathematical modeling to biological fluids is of utmost importance, as it has diverse applicationsin medicine. The peristaltic mechanism plays a crucial role in understanding numerous biological flows. In thispaper, we present a theoretical investigation of the double diffusion convection in the peristaltic transport of aPrandtl nanofluid through an asymmetric tapered channel under the combined action of thermal radiation andan induced magnetic field. The equations for the current flow scenario are developed, incorporating relevantassumptions, and considering the effect of viscous dissipation. The impact of thermal radiation and doublediffusion on public health is of particular interest. For instance, infrared radiation techniques have been used totreat various skin-related diseases and can also be employed as a measure of thermotherapy for some bones toenhance blood circulation, with radiation increasing blood flow by approximately 80%. To solve the governingequations, we employ a numerical method with the aid of symbolic software such as Mathematica and *** velocity, magnetic force function, pressure rise, temperature, solute (species) concentration, and nanoparticlevolume fraction profiles are analytically derived and graphically displayed. The results outcomes are compared withthe findings of limiting situations for verification.

关键词： Double diffusion convection thermal radiation induced magnetic field peristaltic flow tapered asymmetric channel viscous dissipation Prandtl nanofluid

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Use of infrared thermography to detect reactions to stressful events:does animal personality matter?

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Integrative Zoology 2024年第2期19卷 224-239页

作者： maria Vittoria MAZZAMUTO Marina MORANDINI William LAMPMAN Lucas Armand WAUTERS Damiano PREATONI John Lad KOPROWSKI Adriano MARTINOLI School of Natural Resources and Environment College of Agriculture and Life ScienceUniversity of ArizonaArizonaUSA Unitàdi Analisi e Gestione delle Risorse Ambientali Dipartimento di Scienze Teoriche e ApplicateGuido Tosi Research GroupUniversitàdegli Studi dell’InsubriaVareseItaly Haub School of Environment and Natural Resources University of WyomingWyomingUSA

The study of the relationship between animal stress and personality for free-ranging animals is limited and provides contrasting *** perception of stressors by an individual may vary due to its personality,and certain personality traits may help individuals to better cope with *** non-invasive infrared thermography(IRT),we investigated the link between physiological and behavioral components expressed during an acute stress event by free-ranging Fremont’s squirrels(Tamiasciurus fremonti).We expected that,during the acute stress event of being approached by the researcher,individuals that showed a fast pace-of-life syndrome(bolder,more active,and less social/more aggressive)based on an arena test would exhibit stronger sympathetic-adrenal-medullary system reactivity showing a more intense stress-induced hyperthermia(high core body temperature and low peripheral temperature)than individuals with a slow pace of life(shy,less active,and more social).We successfully employed IRT technology to images of Fremont’s squirrels with identification of the individuals’body parts(eye,nose,ear,hind foot).However,we found no support for our ***’body surface temperatures told us more about a squirrel’s external environment and less about the thermal state of the body in that environment following a stressful *** studies need to assess how to make IRT effective and efficient in the field and improve its performance in studying the relationships between physiology and personality in wildlife.

关键词： non-invasive method open field test physiology stress-induced hyperthermia Tamiasciurus fremonti

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Small mammal community composition impacts bank vole (Clethrionomys glareolus) population dynamics and associated seroprevalence of Puumala orthohantavirus

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Integrative Zoology 2024年第1期19卷 52-65页

作者： Felicitas maria BUJNOCH Daniela REIL Stephan DREWES Ulrike MROSENFELD Rainer G.ULRICH Jens JACOB Christian IMHOLT Julius Kühn-Institute Federal Research Centre for Cultivated PlantsInstitute for Epidemiology and Pathogen DiagnosticsRodent ResearchMünsterGermany University of Münster Institute for Evolution and BiodiversityMünsterGermany Friedrich-Loeffler-Institut Federal Research Institute for Animal HealthInstitute of Novel and Emerging Infectious DiseasesGreifswald-Insel RiemsGermany

Rodents are important reservoirs for zoonotic pathogens that cause diseases in *** is hypoth-esized to be closely related to pathogen prevalence through multiple direct and indirect *** example,the presence of non-host species can reduce contact rates of the main reservoir host and thus reduce the risk of transmission(“dilution effect”).In addition,an overlap in ecological niches between two species could lead to increased interspecific competition,potentially limiting host densities and reducing density-dependent pathogen transmission *** this study,we investigated the relative impact of population-level regulation of direct and indirect drivers of the prevalence of Puumala orthohantavirus(PUUV)in bank voles(Clethrionomys glareolus)during years with high *** compiled data on small mammal community composition from four regions in Germany between 2010 and *** equation modeling revealed a strong seasonality in PUUV control mechanisms in bank *** abundance of shrews tended to have a negative relationship with host abundance,and host abundance positively influenced PUUV seroprevalence,while at the same time increasing the abundance of competing non-hosts like the wood mouse(Apodemus sylvaticus)and the yellow-neckedfield mouse(Apodemusflavicollis)were associated with reduced PUUV seroprevalence in the *** results indicate that for PUUV in bank voles,dilution is associated with increased interspecific *** pressures leading to the decline of Apodemus *** a specific habitat could lead to the amplification of mechanisms promoting PUUV transmission within the host populations.

关键词： bank vole biodiversity Puumala orthohantavirus small mammals

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Congenital heart“Challenges”in Down syndrome

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World Journal of Cardiology 2024年第5期16卷 217-220页

作者： maria Drakopoulou Panayotis K Vlachakis Costas Tsioufis Dimitris Tousoulis Department of First Cardiology Hippokration General HospitalAthens Medical SchoolNational and Kapodistrian University of AthensAthens 11527Greece

In this editorial,we comment on the article by Kong et al published in the recent issue of the World Journal of *** this interesting case,the authors present the challenges faced in managing a 13-year-old patient with Down syndrome(DS)and congenital heart disease(CHD)associated with pulmonary arterial *** this distinct population,the Authors underscore the need for early diagnosis and management as well as the need of a multidisciplinary approach for decision *** seems that the occurrence of CHD in patients with DS adds layers of complexity to their clinical *** editorial aims to provide a comprehensive overview of the intricate interplay between DS and congenital heart disorders,offering insights into the nuanced diagnostic and therapeutic considerations for physicians.

关键词： Down syndrome Congenital heart disease Atrioventricular septal defect Pulmonary hypertension Right heart catheterization

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Eight of ten patients return to daily activities, work, and sports after total knee arthroplasty

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World Journal of Orthopedics 2024年第7期15卷 608-617页

作者： Maud Cornelia Wilhelmina maria Peters Yvette Pronk Justus-Martijn Brinkman Department of Research Kliniek ViaSanaMill 5451 AANetherlands Department of Orthopedic Surgery Kliniek ViaSanaMill 5451 AANetherlands

BACKGROUND Besides return to work(RTW)and return to sports(RTS),patients also prefer to return to daily activities(RTA)such as walking,sleeping,grocery shopping,and domestic work following total knee arthroplasty(TKA).However,evidence on the timelines and probability of patients’RTA is *** To assess the percentage of patients able to RTA,RTW,and RTS after TKA,as well as the timeframe and influencing factors of this *** A retrospective cohort study with prospectively collected data was conducted at a medium-sized Dutch orthopedic *** of RTA,RTW,and RTS were performed at 3 mo and/or 6 mo following *** factors en-compassed patient characteristics,surgical characteristics,and preoperative patient-reported *** TKA patients[n=2063;66 years old(interquartile range[IQR]:7 years);47%male;28 kg/m2(IQR:4 kg/m2)]showed RTA ranging from 28%for kneeling to 94%for grocery shopping,with 20 d(IQR:27 d)spent for putting on shoes to 74 d(IQR:57 d)for *** rates varied from 62%for medium-impact work to 87%for low-impact work,taking 33 d(IQR:29 d)to 78 d(IQR:55 d).RTS ranged from 48%for medium-impact sports to 90%for low-impact sports,occurring within 43 d(IQR:24 d)to 90 d(IQR:60 d).One or more of the investigated factors influenced the return to each of the 14 activities examined,with R²values ranging from 0.013 to *** Approximately 80%of patients can RTA,RTW,and RTS within 6 mo after *** is not consistently in-fluenced by predictive *** help set realistic pre-and postoperative expectations.

关键词： Knee Arthroplasty Replacement Return to work Return to daily activities Return to sports

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Venous Doppler flow patterns,venous congestion,heart disease and renal dysfunction:A complex liaison

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World Journal of Cardiology 2024年第1期16卷 5-9页

作者： Alessio Di maria Rossella Siligato Marta Bondanelli Fabio Fabbian Specialized Medicines Renal UnitUniversity Hospital St.Anna of FerraraFerrara I-44124Italy Department of Biomedical DentalMorphological and Functional Imaging SciencesUniversity of MessinaMessina I-98121Italy Department of Medical Sciences University of FerraraFerrara I-44124Italy Department of Medical Sciences University of FerraraFerrara 44124Italy

The World Journal of Cardiology published an article written by Kuwahara et al that we take the pleasure to comment *** focused our attention on venous *** intensive care settings,it is now widely accepted that venous congestion is an important clinical feature worthy of *** venous Doppler profile abnormalities at multiple sites could suggest adequate treatment and monitor its *** dysfunction could trigger or worsen fluid overload in heart disease,and cardio-renal syndrome is a well-characterized spectrum of disorders describing the complex interactions between heart and kidney *** overload and venous congestion,including renal venous hypertension,are major determinants of acute and chronic renal dysfunction arising in heart *** congestion from venous hypertension could be involved in the development of organ injury in several clinical situations,such as critical diseases,congestive heart failure,and chronic kidney *** and abnormal Doppler flow patterns diagnose clinically significant systemic venous *** and nephrologists might use this valuable,noninvasive,bedside diagnostic tool to establish fluid status and guide clinical choices.

关键词： Cardio-renal syndrome Fluid overload Venous congestion Acute kidney injury Ultrasound Doppler flow patterns

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Can You Help Me,Please?

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空中英语教室（初级版．大家说英语） 2024年第9期 35-38,54,55,56页

作者： maria Chiu 不详

Everyone needs help *** can ask,"Can you give me a hand?"Maybe you have to finish a *** need *** can ask,"Can you hand those scissors to me?"Or perhaps you need some advice or want someone's *** you have to solve a **... 详细信息

关键词： something someone You

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Major- and Trace- Element Chemistry of Clinopyroxene and Amphibole from High-Mg Diorite in Chelyabinsk Massif(Urals): Insights into Petrogenesis and Magma Source Constraints

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Journal of Earth Science 2024年

作者： Tatiana Osipova Gennadiy Kallistov maria Chervyakovskaya Vasiliy Chervyakovskiy Zavaritsky Institute of Geology and Geochemistry，Ural Branch of RAS

Field- and petrographic investigations， together with microanalytical major- and trace-element studies， were carried out on clinopyroxene and amphibole from high-Mg diorite in the subduction-related Chelyabinsk granitic massif to understand its petrogenesis and source. The clinopyroxene composition (high Mg#， Cr-content， sum of REE and Ti/Eu ratio; depletion in HREE; negative Eu-anomaly) indicates that it formed from a reduced melt derived from a mantle source metasomatized by fluids/melts having crustal affinity. Melt compositions in equilibrium with clinopyroxene and amphibole were calculated using solid/liquid partition coefficients. The high Nb/Y and Zr/Y ratio values of a liquid simulated from clinopyroxene， which appears to have very similar characteristics to sanukitoid melts， indicate a low degree of melting of the mantle source. Melt simulated from amphibole is more evolved and more felsic (dacitic). It displays a geochemical “amphibole fractionation” signature， indicating the peritectic transformation of clinopyroxene to amphibole in the lower crust. Rock textures and major element mineral compositions suggest that further amphibole was precipitated directly from the melt in the middle crust. The results show that the Chelyabinsk high-Mg diorite was probably formed as a cumulate from sanukitoid-like melt during its ascent and cooling below dacitic liquidus inside the amphibole stability field.

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Calcium-sensitive protein MLC1 as a possible modulator of the astrocyte functional state

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Neural Regeneration Research 2025年第7期20卷 2008-2010页

作者： Elena Ambrosini Angela Lanciotti maria Stefania Brignone Department of Neuroscience Istituto Superiore di SanitàRomeItaly

Astrocytes,the main population of glial cells in the central nervous system(CNS),exert essential tasks for the control of brain tissue homeostasis,supporting neuron and other glial cell activity from the developmental stage to adult *** maintain the optimal functionality of the brain,astroglial cells are particularly committed to reacting to every change in tissue homeostatic conditions,from mild modifications of the physiological environment,a process called astrocyte activation,to the more severe alterations occurring in pathological situations causing astrocyte reactivity or reactive astrogliosis(Escartin et al.,2021).During these reactive states,astrocytes mount an active,progressive response encompassing morphological,molecular,and interactional remodeling,leading to the acquisition of new functions and the loss of others,whose intensity,duration,and reversibility are dependent on the nature of the stimulus and regulated in a context-specific manner.

关键词： alterations modulator maintain

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The Solution of the Einstein’s Equations in the Vacuum Region Surrounding a Spherically Symmetric Mass Distribution

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Journal of Modern Physics 2024年第9期15卷 1353-1374页

作者： Carlo maria Pace ICRANet Pescara Italy

In this article, we address the solution of the Einstein’s equations in the vacuum region surrounding a spherically symmetric mass distribution. There are two different types of mathematical solutions, depending on the value of a constant of integration. These two types of solutions are analysed from a physical point of view. The comparison with the linear theory limit is also considered. This leads to a new solution, different from the well known one. If one considers the observational data in the weak field limit this new solution is in agreement with the available data. While the traditional Schwarzschild solution is characterized by a horizon at r=2GM/c2, no horizon exists in this new solution.

关键词： General Theory of Relativity Schwarzschild Solution Event Horizon Black Hole

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