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Layered Potassium Titanium Niobate/Reduced Graphene Oxide Nanocomposite as a Potassium‑Ion Battery Anode

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Nano-Micro Letters 2024年第1期16卷 1-16页

作者： Charlie A.f.Nason Ajay Piriya Vijaya Kumar Saroja Yi Lu Runzhe Wei Yupei Han Yang Xu Department of.Chemistry University College London20 Gordon StreetLondon WC1H 0AJUK

With graphite currently leading as the most viable anode f.r potassium-ion batteries(KIBs),other materials have been lef. relatively *** metal oxides are among these,with many positive attributes such as synthetic maturity,longterm cycling stability and f.st redox ***,to address this research def.ciency we report herein a layered potassium titanium niobate KTiNbO5(KTNO)and its rGO nanocomposite(KTNO/rGO)synthesised via solvothermal methods as a high-perf.rmance anode f.r *** ef.ective distribution across the electrically conductive rGO,the electrochemical perf.rmance of.the KTNO nanoparticles was *** potassium storage perf.rmance of.the KTNO/rGO was demonstrated by its f.rst charge capacity of.128.1 mAh g^(−1) and reversible capacity of.97.5 mAh g^(−1) af.er 500 cycles at 20 mA g^(−1),retaining 76.1%of.the initial capacity,with an exceptional rate perf.rmance of.54.2 mAh g^(−1)at 1 A g^(−1).f.rthermore,to investigate the attributes of.KTNO in-situ XRD was perf.rmed,indicating a low-strain ***-situ X-ray photoelectron spectra f.rther investigated the mechanism of.charge storage,with the titanium showing greater redox reversibility than the *** work suggests this lowstrain nature is a highly advantageous property and well worth regarding KTNO as a promising anode f.r f.ture high-perf.rmance KIBs.

关键词： Potassium-ion batteries Intercalation Transition metal oxides Anodes Nanocomposite

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Increased CO2 Levels during the f.rst Half.of.Incubation at High Altitude Modif.es Embryonic Development of.f.rtile Leghorn Breeder Eggs

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f.od and Nutrition Sciences 2024年第7期15卷 524-547页

作者： Marco A. Juárez-Estrada Erik I. López-Ruiz Sonia López-Cordova Guillermo Tellez-Isaias Omar f. Prado-Rebolledo Departamento de Medicina y Zootecnia de Aves Facultad de Medicina Veterinaria y Zootecnia Universidad Nacional Autnoma de Mxico Ciudad de Mxico Mxico Department of.Poultry Science Division of Agriculture University of Arkansas Fayetteville USA f.cultad de Medicina Veterinaria y Zootecnia Universidad de Colima Tecomn Mxico

The exchange of.oxygen (O2) and carbon dioxide (CO2) within an incubator has a signif.cant impact on embryonic development (ED) and hatching processes. This study examines the inf.uence of.non-ventilation (NV) conditions during the f.rst ten days of.incubation at high altitudes on Leghorn hens hatching eggs. f.ve hundred f.ur hatching eggs were equally divided into three treatment groups and placed in twelve incubators (R = 4). The f.rst group was subjected to standard ventilated conditions (V) during the setting phase. The ventilation inlet holes of.the remaining incubators in the NV treatments were closed with either micropore (M) or polypropylene (P) tape, ref.rred to as NVM and NVP groups, respectively. These two dif.erent airtight settings were intended to allow f.r a gradual rise in CO2 naturally generated by the embryos. Results indicate that carbon dioxide concentration gradually increased during the f.rst half.of.incubation, reaching 1.42% in the NVM group and 1.20% in the NVP group, while the V condition group remained at 0.15%. f.om 10 days of.incubation onwards, normal V conditions were restored in all incubators. The highest hatchability of.f.rtile eggs (Hf.) was shown by the NVP group (55.7%), f.llowed by the V (52.6%) and NVM (38.6%) groups. The NVP group showed a greater yolk-f.ee body mass (Yf.M) f.om 10 days of.incubation until the hatch basket transf.r. NV conditions during the f.rst 10 days of.incubation at high altitude produced higher Yf.M with gradually decreasing yolk sac mass. In comparison to the NVM and V conditions, the particular NVP condition showed a benef.cial impact on the quality of.hatched chicks. Sustaining NVP condition (1.2% of.CO2) throughout the f.rst half.of.incubation at high altitude generated the optimal environment in the incubator ensuring the best hatchability results. This study highlights how important it is f.r hatchery managers to recognize the inf.uence of.low O2 and high levels of.CO2 on the development trajectori

关键词： Non-Ventilation Hypercapnia Hypoxia Egg Mass Loss Hatchability Embryonic Mortality Hatchling Chick Quality

Comparisons of.oxbow lake f.sh assemblages in relation to bigheaded carp establishment in the lower White River, Arkansas

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Ecological Processes 2024年第1期13卷 188-205页

作者： Michael A.Eggleton Cody J.Salzmann Joseph E.Kaiser Shannon C.f.Smith Department of.Aquaculture and f.sheries University of Arkansas at Pine Bluff Arkansas Game and f.sh Commission Virginia Institute of.Marine Science

Background Since the late 1990s, bigheaded carps(largely silver carp [Hypophthalmichthys molitrix] but also bighead carp [H. nobilis]) have established throughout the lower Mississippi River basin. Using previously studied oxbow lakes in the lower White River basin, Arkansas, we compared current(2017, “post-carp” establishment) f.sh assemblages to historical(2002, “pre-carp” establishment) f.sh assemblages. f.sh assemblages were comprehensively assessed using multiple gears, including boat electrof.shing, mini-f.ke nets, and experimental small-mesh gill *** T-tests suggested that f.sh assemblage indices of.richness, diversity, evenness, and dominance were of.en greater(P f.ected by boat electrof.shing and experimental gill nets. However, all indices were generally similar(P > 0.05) between the pre-carp and post-carp period with f.sh assemblages depicted using mini-f.ke nets. Nonmetric multidimensional scaling analyses indicated that f.sh assemblages dif.ered structurally between pre-carp and post-carp periods. Assemblage dif.erences were linked to both small and large abundance changes f.r more than 20 species. Abundances of.gizzard shad(Dorosoma cepedianum), emerald shiner(Notropis atherinoides), pugnose minnow(Opsopoeodus emiliae), crappies(Pomoxis spp.), bluegill(Lepomis macrochirus), orangespotted sunf.sh(L. humilis), and yellow bass(Morone mississippiensis) declined between the pre-carp and postcarp periods. Conversely, abundances of.weed shiner(N. texanus), pallid shiner(Hybopsis amnis), longear sunf.sh(L. megalotis), buf.alof.shes(Ictiobus spp.), and gars(Lepisosteus spp.) generally increased during the same *** Although not possible to conclude assemblage shif.s were entirely related to bigheaded carps due to the absence of.an appropriate ref.rence system where carps did not establish, the wide establishment of.these carps is one of.the most pervasive changes to have occurred in the lower White

关键词： Bigheaded carp Silver carp Aquatic nuisance species f.sh assemblage Oxbow lake Large river

A predictive model f.r ethylene-mediated auxin and cytokinin patterning in the Arabidopsis root

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Plant Communications 2024年第7期5卷 120-137页

作者： Simon Moore George Jervis Jennif.r f.Topping Chunli Chen Junli Liu Keith Lindsey Department of.Biosciences Durham UniversitySouth RoadDurham DH13LEUK Hubei Hongshan Laboratory College of Life Science and TechnologyHuazhong Agricultural UniversityWuhan 430070China National Key Laboratory f.r Germplasm Innovation and Utilization f.r f.uit and Vegetable Horticultural Crops Huazhong Agricultural UniversityWuhanHubei 430070China

The interaction between auxin and cytokinin is important in many aspects of.plant *** measurements of.both auxin and cytokinin concentration and reporter gene expression clearly show the coexistence of.auxin and cytokinin concentration patterning in Arabidopsis root ***,in the context of.crosstalk among auxin,cytokinin,and ethylene,little is known about how auxin and cytokinin concentration patterns simultaneously emerge and how they regulate each other in the Arabidopsis *** work utilizes a wide range of.experimental observations to propose a mechanism f.r simultaneous patterning of.auxin and cytokinin *** addition to revealing the regulatory relationships between auxin and cytokinin,this mechanism shows that ethylene signaling is an important f.ctor in achieving simultaneous auxin and cytokinin patterning,while also predicting other experimental *** the mechanism with a realistic in silico root model reproduces experimental observations of.both auxin and cytokinin *** made by the mechanism can be compared with a variety of.experimental observations,including those obtained by our group and other independent experiments reported by other *** of.these predictions include patterning of.auxin biosynthesis rate,changes in PIN1 and PIN2 patterns in pin3,4,7 mutants,changes in cytokinin patterning in the pls mutant,PLS patterning,and various trends in dif.erent *** research reveals a plausible mechanism f.r simultaneous patterning of.auxin and cytokinin concentrations in Arabidopsis root development and suggests a key role f.r ethylene pattern integration.

关键词： Arabidopsis root auxin patterning cytokinin patterning ethylene signaling in silico digital root spatiotemporal modeling

The global stability and optimal control of.the COVID-19 epidemic model

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International Journal of.Biomathematics 2024年第1期17卷 1-28页

作者： f.ngsheng Chien Hassan Saberi Nik Mohammad Shiraziant J.f.Gomez-Aguilar School of.f.nance and Accounting f.zhou University of.International Studies and Trade f.zhou 352020 P.R.China f.culty of.Business City university of Macao Macao 999078P.R.China Department of.Mathematics and Statistics University of.Neyshabur NeyshaburIran CONACyT-Tecnologico Nacional de Mécico/CENIDET Interior Internado Palmira S/N Col.Palmira C.P.62490CuernavacaMorelosMérico

This paper considers stability analysis of.a Susceptible-Exposed-Inf.cted-Recovered-Virus(SEIRV)model with nonlinear incidence rates and indicates the severity and weakness of.control f.ctors f.r disease *** Lyapunov f.nction using Volterra-Lyapunov matrices makes it possible to study the global stability of.the endemic equilibrium *** optimal control strategy is proposed to prevent the spread of.coronavirus,in addition to governmental *** objective is to minimize together with the quantity of.inf.cted and exposed individuals while minimizing the total costs of.treatment.A numerical study of.the model is also carried out to investigate the analytical results.

关键词： Global stability SEIRV epidemic model dynamical systems Volterra-Lyapunov stability optimal control

Cooperative THz communication f.r UAVs in 6G and beyond

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Green Energy and Intelligent Transportation 2024年第1期3卷 25-31页

作者： Nazif. Mustari Muhammet Ali Karabulut A.f.M.Shahen Shah Uf.k Tureli Department of.Electronics and Communication Engineering Yildiz Technical UniversityTurkey Department of.Electrical Electronics Engineering Faculty of Engineering and ArchitectureKafkas UniversityKarsTurkey

One of.the key components of.any smart city is considered to be its intelligent transportation systems(ITSs).Unmanned aerial vehicles(UAVs)are envisioned in several ITS application f.elds because of.their autonomous operation,mobility,communication/processing capabilities,and other *** this paper,cooperative terahertz(THz)communication is proposed f.r f.ying ad hoc networks(f.NETs),which is a particular kind of.network made up of.a collection of.small UAVs linked in an ad hoc f.shion and working together to accomplish high-level *** f.equency spectrum f.r wireless communication has been expanding continuously in order to meet the demand f.r *** the f.rthcoming 6G and beyond,communications in the THz range will be vital,similar to how mmWave-band communications are currently inf.uencing the 5G of.wireless mobile *** f.nite state machine(f.M)of.the proposed cooperative communication system f.r THz band is presented.A Markov chain model-based analytical study is carried out,which derives relationships among ***,numerical results are provided to support the analytical study.

关键词： Cooperative MAC THz UAVs 6G

Increasing age and duration of.sex work among f.male sex workers in South Af.ica and implications f.r HIV incidence estimation:Bayesian evidence synthesis and simulation exercise

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Inf.ctious Disease Modelling 2024年第1期9卷 263-277页

作者： Nanina Anderegg Mariette Slabbert Kholi Buthelezi Leigh f.Johnson Centre f.r Inf.ctious Disease Epidemiology and Research School of Public HealthUniversity of Cape TownSouth Africa Institute of.Social and Preventive Medicine University of BernSwitzerland Independent Consultant PretoriaSouth Africa National Sex Workers Movement in South Africa

Introduction:In sub-Saharan Af.ica,accurate estimates of.the HIV epidemic in f.male sex workers are crucial f.r ef.ective prevention and care *** estimates are typically derived f.om mathematical models that assume certain demographic and behavioural characteristics like age and duration of.sex work to remain constant over *** reviewed this assumption f.r f.male sex workers in South ***:We reviewed studies that reported estimates on either the age or the duration of.sex work among f.male sex workers in South *** used Bayesian hierarchical models to synthesize reported estimates and to study time *** a simulation exercise,we also investigated the potential impact of.the"constant age and sex work duration"-assumption on estimates of.HIV ***:We included 24 dif.erent studies,conducted between 1996 and 2019,contributing 42 estimates on f.male sex worker age and 27 estimates on sex work *** was evidence suggesting an increase in both the duration of.sex work and the age of.f.male sex workers over *** to the f.tted models,over each decade the expected duration of.sex work increased by 55.6%(95%-credible interval[CrI]:23.5%–93.9%)and the expected age of.f.male sex workers increased by 14.3%(95%-CrI:9.1%–19.1%).Over the 23-year period,the predicted mean duration of.sex work increased f.om 2.7 years in 1996 to 7.4 years in 2019,while the predicted mean age increased f.om 26.4 years to 32.3 *** f.r these time trends in the simulation exercise resulted in a notable decline in estimated HIV incidence rate among sex workers over *** decline was signif.cantly more pronounced than when assuming a constant age and duration of.sex ***:In South Af.ica,age and duration of.sex work in f.male sex workers increased over *** this trend might be inf.uenced by f.ctors like expanding community mobilization and improved rights advocacy,the ongoing criminalisation,stigmatisation of.s

关键词： f.male sex workers Mathematical modelling South Af.ica HIV

Recurrent gene f.ow between Neanderthals and modern humans over the past 200,000 years

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四川生理科学杂志 2024年第7期46卷 1621-1621页

作者： Liming Li Troy J. Comi Rob f. Bierman Joshua M. Akey Department of.Medical Genetics and Developmental Biology School of Medicine The Key Laboratory of Developmental Genes and Human Diseases Ministry of Education Southeast University Nanjing 210009 China. The Lewis-Sigler Institute f.r Integrative Genomics Princeton University Princeton NJ 08540 USA.

Although it is well known that the ancestors of.modern humans and Neanderthals admixed,the ef.ects of.gene f.ow on the Neanderthal genome are not well *** develop methods to estimate the amount of.human-introgressed s... 详细信息

关键词： f.ow modern apply

Small molecular decoys in Alzheimer's disease

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Neural Regeneration Research 2024年第8期19卷 1658-1659页

作者： Sho Oasa Valentina L.Kouznetsova Igor f.Tsigelny Lars Terenius Department of.Clinical Neuroscience Center for Molecular MedicineKarolinska InstitutetStockholmSweden San Diego Supercomputer Center University of California San DiegoLa JollaCAUSA Department of.Neurosciences University of California San DiegoLa JollaCAUSA Department of.Clinical Neuroscience Karolinska University HospitalKarolinska InstitutetStockholmSweden

Recent progress in the treatment of.Alzheimer’s disease(AD)using antibodies against amyloid sustains amyloid generation as a key process in *** f.rmation starts with two amyloidbeta(Aβ)molecules interacting(dimer f.rmation)f.llowed by an accelerating build-up of.socalled protof.brils,which turn into f.brils,which accumulate in the characteristic plaques.

关键词： Alzheimer decoy Aβ

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