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98741
Feedback control of an HBV model based on ensemble kalman filter and differential evolution
Published 2018-05-01“…We introduce and analyze a dynamic mathematical model that describes the HBV infection during antiviral therapy. We determine the reproduction number and then conduct a qualitative analysis of the model using the number. …”
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98742
Mitochondrial DNA copy number as a mediator of the relationship between insulin resistance and cognitive function in patients with euthymic bipolar disorder
Published 2025-01-01“…This mediation relationship was statistically significant for both preservation errors and completion of categories in the WCST, although there were no significant direct effects of insulin resistance on the executive functions. We therefore concluded that insulin resistance is associated with reduced mtDNA copy number in blood, which may negatively impact executive functions in patients with euthymic BD. …”
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98743
High resolution ISAR imaging algorithm based on compressive sensing
Published 2013-09-01“…According to the problem that conventional imaging algorithms have some unavoidable shortcomings such as low resolution of image and being fragile to the noise with short coherent processing interval (CPI),an improved ISAR imaging algorithm via CS method,namely,PH-SL0 algorithm,was proposed.In the proposed algorithm,as a kind of measure matrix,partial randomizer Hadamard matrix (PH) has many advantages such as high reconstruction precision and low dimension of measure matrix.Meanwhile,as a reconstruction algorithm,SL0 has many advantages such as demanding fewer measurements than existing methods,having higher reconstructed accuracy and better robust.Therefore,making use of the advantages of PH and SL0,and extending them to the field of radar,the azimuth imaging with short imaging data could be implemented.Finally,simulation results and experimental results of real data show that the algorithm has higher imaging resolution and better robust to noise.…”
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98744
COVID- 19 en Guaos ∶ a propósito de un caso
Published 2020-11-01“…--[if gte mso 9]><xml> <w:WordDocument> <w:View>Normal</w:View> <w:Zoom>0</w:Zoom> <w:TrackMoves/> <w:TrackFormatting/> <w:HyphenationZone>21</w:HyphenationZone> <w:PunctuationKerning/> <w:ValidateAgainstSchemas/> <w:SaveIfXMLInvalid>false</w:SaveIfXMLInvalid> <w:IgnoreMixedContent>false</w:IgnoreMixedContent> <w:AlwaysShowPlaceholderText>false</w:AlwaysShowPlaceholderText> <w:DoNotPromoteQF/> <w:LidThemeOther>ES</w:LidThemeOther> <w:LidThemeAsian>X-NONE</w:LidThemeAsian> <w:LidThemeComplexScript>X-NONE</w:LidThemeComplexScript> <w:Compatibility> <w:BreakWrappedTables/> <w:SnapToGridInCell/> <w:WrapTextWithPunct/> <w:UseAsianBreakRules/> <w:DontGrowAutofit/> <w:SplitPgBreakAndParaMark/> <w:EnableOpenTypeKerning/> <w:DontFlipMirrorIndents/> <w:OverrideTableStyleHps/> </w:Compatibility> <m:mathPr> <m:mathFont m:val="Cambria Math"/> <m:brkBin m:val="before"/> <m:brkBinSub m:val="--"/> <m:smallFrac m:val="off"/> <m:dispDef/> <m:lMargin m:val="0"/> <m:rMargin m:val="0"/> <m:defJc m:val="centerGroup"/> <m:wrapIndent m:val="1440"/> <m:intLim m:val="subSup"/> <m:naryLim m:val="undOvr"/> </m:mathPr></w:WordDocument> </xml><!…”
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98745
SIRT1 Regulates Cognitive Performance and Ability of Learning and Memory in Diabetic and Nondiabetic Models
Published 2017-01-01“…Our findings suggest that SIRT1 might be a potential therapeutic target for the treatment of cognitive impairment induced by type 2 diabetes mellitus.…”
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98746
Rapid Destructive Arthropathy of the Knee in Parkinson’s Disease with Pisa Syndrome: A Case of Knee-Spine Syndrome
Published 2021-01-01“…A 60-year-old woman with Parkinson’s disease (PD; Hoehn-Yahr stage IV) had severe knee pain with moderate lateral osteoarthritis of the knee (Kellgren-Lawrence classification grade II). Conservative therapy had no effect at all, and the knee developed destructive osteoarthritis rapidly without any traumatic episodes. …”
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98747
Mapping the social-ecological suitability of agroforestry in the US Midwest
Published 2025-01-01“…Our integrated approach can help stakeholders identify target areas for agroforestry and provides a theoretical foundation for interdisciplinary suitability mapping that can be adapted for use in other global regions.…”
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98748
Affects of Resistance: Candomblé Rituals in Contemporary Brazilian Fiction
Published 2024-12-01“…The paper examines how Afro-Brazilian religious rituals facilitate political mobilization and agential potentialities using insights from affect theory. …”
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98749
Acidic Microenvironment Enhances Cisplatin Resistance in Bladder Cancer via Bcl-2 and XIAP
Published 2025-01-01“…Cisplatin (CDDP) remains a key drug for patients with advanced bladder cancer (BC), despite the emergence of new therapeutic agents; thus, the identification of factors contributing to CDDP treatment resistance is crucial. …”
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98750
Smart universities: Adaption challenges for Historically black universities in South Africa: A concept overview.
Published 2025-01-01“…The paper found that infrastructure challenges, a lack of skills and development and limited resources were major factors hindering historically black universities from adopting the concept of a smart university; historically black universities offered minimal no techfocused courses, which reduced them to acclimatize themselves with the elements of the 4IR. …”
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98751
Non-cooperative signal modulation recognition algorithm based on joint feature parameter extraction
Published 2020-07-01“…Aiming at the problem that in the current electromagnetic environment,the modulation method is complicated,the frequency-consuming equipment increases,the spectrum is congested,and the electromagnetic environment interference increases,the algorithm of OFDM signal detection and subcarrier identification in the background of non-cooperative communication were deeply studied.Using the different distribution states of OFDM signals and single carrier signals in the time domain,a joint characteristic parameter was proposed to solve the existence problem of OFDM in the received signal.For the phase shift and frequency offset problems caused by the channel transmission to the signal,by using the periodic stability the blind parameter estimation was performed to obtain the signal prior information.On the basis of the obtained signal prior information,a multi-level classification and recognition method for non-cooperative OFDM signal sub-carrier signals was proposed.Therefore,a model based on non-cooperative communication system OFDM signal detection and subcarrier modulation identification was designed,and finally modulation identification of unknown signals was completed.Simulation experiments show that in non-cooperative communication systems,OFDM signals and single-carrier signals can be accurately identified,and ideal modulation recognition effects can be achieved on empty subcarriers,QPSK,and 16QAM in the receiver OFDM signal subcarriers,overcoming the channel transmission band The problems of phase shift and frequency offset have improved the accuracy of modulation mode identification.…”
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98752
Novel algorithm for dynamic bandwidth scheduling in WDM EPON
Published 2012-02-01“…Optical network unit(ONU)grant scheduling techniques for wavelength division multiplexed Ethernet passive optical networks (WDM EPON) was investigated and the grant scheduling problem based on scheduling theory was solved the question was formulated into a rectangle packing problem and a high performance ONU grant scheduling policy based on Euclidian distance was proposed by taking quasi-human strategy.An effective heuristic algorithm was provided to quickly solve ONU grant scheduling problem in WDM EPON.Further simulation experiments show the grant scheduling algorithm can decrease average packet delay and increase network utilization.The results indicate the effectiveness of this algorithm.…”
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98753
Overcoming barriers to engagement and adherence to a home-based physical activity intervention for patients with heart failure: a qualitative focus group study
Published 2020-09-01“…Data were analysed using thematic analysis.Participants A purposive sample of 16 patients, 82% male, aged 68±7 years, with heart failure duration of 10±9 years were recruited.Intervention A 12-week behavioural intervention targeting physical activity was delivered once per week by telephone.Results Ten main themes were generated that provided a comprehensive overview of the active ingredients of the intervention in terms of engagement and adherence. …”
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98754
Ionospheric Gradient Threat Mitigation in Future Dual Frequency GBAS
Published 2017-01-01“…However, the combination of several signals increases the noise in the position solution and in the calculation of error bounds. We, therefore, developed a method to base positioning algorithms on single frequency measurements and use the second frequency only for monitoring purposes. …”
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98755
Smugglers, Poachers and Wreckers in Nineteenth-Century English Painting
Published 2005-12-01“…This paper looks at the representation, in art, of three groups of people whose activities in the countryside and on the coast aroused conflicting reactions: moralists saw them as a threat to the social order, but they were rarely regarded as criminal within their own communities, and their status depended on laws which many saw as unjust, or which were subject to change. …”
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98756
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98757
Secure and collaborative spectrum sensing scheme based on audit game
Published 2023-12-01“…To defend against poisoning attacks and free-riding attacks conducted by malicious sensing terminals in crowd sensing-based collaborative spectrum sensing (CCSS), a novel audit game-based defense scheme was proposed, which combined the pre-deterrence and post-punishment mechanisms.Firstly, considering the audit budget constraint, a mixed-strategy audit game model under incomplete information was designed, which set a penalty strategy to deter malicious collaborators before spectrum sensing, and audited and punished them after the fusion of sensing data.Then, a lightweight audit chain model with on-chain and off-chain collaboration was designed, in which audit evidence was stored in an off-chain data warehouse and its metadata was publicly published on the blockchain.Furthermore, a distributed and intelligent audit algorithm based on reinforcement learning was devised to adaptively seek the approximate mix-strategy equilibrium of the audit game.Simulation results demonstrate that the proposed scheme can quickly obtain the stable and approximately optimal audit strategies and actively suppress the poisoning and free-riding behaviors of malicious collaborators, in comparison with conventional schemes.…”
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98758
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98759
Fluctuation Characteristic Analysis on Scraper Chain Transmission System
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98760
Hexagons govern three-qubit contextuality
Published 2025-01-01“…In connection with the last-mentioned case and elliptic quadrics we also conducted some experimental tests on a Noisy Intermediate Scale Quantum (NISQ) computer to substantiate our theoretical findings.…”
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