检索结果-南通市图书馆

Insect Science 2015年第4期22卷 569-577页

作者： Pankaj Yadav Deepak Choudhury Madhumala K. Sadanandappa vijay Kumar Sharma Chronobiology Laboratory Evolutionary and Organismal Biology Unit Jawaharlal Nehru Centre for Advanced Scientific Research Bangalore 560064 Kamataka India

Circadian clocks time developmental stages of fruit flies Drosophila melanogaster, while light/dark （LD） cycles delimit emergence of adults, conceding only during the ＂allowed gate.＂ Previous studies have revealed that time-to-emergence can be altered by mutations in the core clock gene period （per）, or by altering the length of LD cycles. Since this evidence came from studies on genetically manipulated flies, or on flies maintained under LD cycles with limited range of periods, inferences that can be drawn are limited. Moreover, the extent of shortening or lengthening of time-to-emergence re- mains yet unknown. In order to pursue this further, we assayed time-to-emergence of D. rnelanogaster under 12 different LD cycles as well as in constant light （LL） and constant dark conditions （DD）. Time-to-emergence in flies occurred earlier under LL than in LD cycles and DD. Among the LD cycles, time-to-emergence occurred earlier under T4-T8, followed by T36-T48, and then T12-T32, suggesting that egg-to-emergence duration in flies becomes shorter when the length of LD cycles deviates from 24 h, bearing a strong positive and a marginally negative correlation with day length, for values shorter and longer than 24 h, respectively. These results suggest that the extent of mismatch between the period of circadian clocks and environmental cycles determines the time-to-emergence in Drosophila.

关键词： circadian Drosophila light/dark regimes period time-to-emergence

Predicting and Visualizing Citrus Color Transformation Using a Deep Mask-Guided Generative Network

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Plant Phenomics 2023年第3期5卷 435-446页

作者： Zehan Bao Weifu Li Jun Chen Hong Chen vijay John Chi Xiao Yaohui Chen College of Informatics Huazhong Agricultural UniversityWuhan 430070China Engineering Research Center of Intelligent Technology for Agriculture Ministry of EducationWuhanChina RIKEN Guardian robot project2-2-2 Hikaridai Seika-choSorakugun619-0288 KyotoJapan Key Laboratory of Biomedical Engineering of Hainan Province School of Biomedical EngineeringHainan UniversityHaikou 570100China College of Engineering Huazhong Agricultural University430070 WuhanChina

Citrus rind color is a good indicator of fruit development,and methods to monitor and predict color transformation therefore help the decisions of crop management practices and harvest *** work presents the complete workflow to predict and visualize citrus color transformation in the orchard featuring high accuracy and fidelity.A total of 107 sample Navel oranges were observed during the color transformation period,resulting in a dataset containing 7,535 citrus images.A framework is proposed that integrates visual saliency into deep learning,and it consists of a segmentation network,a deep mask-guided generative network,and a loss network with manually designed loss ***,the fusion of image features and temporal information enables one single model to predict the rind color at different time intervals,thus effectively shrinking the number of model *** semantic segmentation network of the framework achieves the mean intersection over a union score of 0.9694,and the generative network obtains a peak signal-to-noise ratio of 30.01 and a mean local style loss score of 2.710,which indicate both high quality and similarity of the generated images and are also consistent with human *** ease the applications in the real world,the model is ported to an Android-based application for mobile *** methods can be readily expanded to other fruit crops with a color transformation *** dataset and the source code are publicly available at GitHub.

关键词： Visual Deep network

Circadian clock control of MRTF/SRF pathway suppresses beige adipocyte thermogenic recruitment

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Molecular Cell Biology 2022年第12期14卷 46-62页

作者： Xuekai Xiong Weini Li Ruya Liu Pradip Saha vijay Yechoor Ke Ma Department of Diabetes Complications&Metabolism Beckman Research Institute of City of HopeDuarteCA 91010USA Diabetes and Beta Cell Biology Center Division of EndocrinologyDiabetes&MetabolismDepartment of MedicineUniversity of PittsburghPittsburghPA 15213USA Department of Medicine Baylor College of MedicineHoustonTX 77030USA

The morphological transformation of adipogenic progenitors into mature adipocytes requires dissolution of actin cytoskeleton with loss of myocardin-related transcription factor(MRTF)/serum response factor(SRF)*** clock confers temporal control in adipogenic differentiation,while the actin cytoskeleton–MRTF/SRF signaling transduces extracellular physical niche ***,we define a novel circadian transcriptional control involved in actin cytoskeleton–MRTF/SRF signaling cascade that modulates beige fat thermogenic *** components of actin dynamic–MRTF/SRF pathway display circadian regulation in beige fat *** core clock regulator,brain and muscle arnt-like 1(Bmal1),exerts direct transcriptional control of genes within the actin dynamic–MRTF/SRF cascade that impacts actin cytoskeleton organization and SRF *** beige fat-selective gene-targeting models together with pharmacological rescues,we further demonstrate that Bmal1 inhibits beige adipogenesis and thermogenic capacity in vivo via the MRTF/SRF *** ablation of Bmal1 induces beigeing with improved glucose homeostasis,whereas its targeted overexpression attenuates thermogenic induction resulting in ***,our findings identify the clock–MRTF/SRF regulatory axis as an inhibitory mechanism of beige fat thermogenic recruitment with significant contribution to systemic metabolic homeostasis.

关键词： circadian rhythm actin cytoskeleton adipocyte differentiation thermogenesis energy balance glucose metabolism insulin sensitivity

Global Dynamics of a Multi-group SEIR Epidemic Model with Infection Age

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Annals of Mathematics,Series B 2021年第6期42卷 833-860页

作者： vijay Pal BAJIYA Jai Prakash TRIPATHI Vipul KAKKAR Jinshan WANG Guiquan SUN Department of Mathematics Central University of RajasthanBandar Sindri-305817KishangarhAjmerRajasthanIndia Complex Systems Research Center Shanxi UniversityTaiyuan 030006China Department of Mathematics North University of ChinaTaiyuan 030051China Complex Systems Research Center Shanxi UniversityTaiyuan 030006China.

Consider the heterogeneity(e.g.,heterogeneous social behaviour,heterogeneity due to different geography,contrasting contact patterns and different numbers of sexual partners etc.)of host population,in this paper,the authors propose an infection age multigroup SEIR epidemic *** model system also incorporates the feedback variables,where the infectivity of infected individuals may depend on the infection *** the direction of mathematical analysis of model,the basic reproduction number R_0 has been *** global stability of disease-free equilibrium and endemic equilibrium have been established in the term of R_(0).More precisely,for R_(0)≤1,the disease-free equilibrium is globally asymptotically stable and for R_(0)>1,they establish global stability of endemic equilibrium using some graph theoretic techniques to Lyapunov function *** considering a numerical example,they investigate the effects of infection age and feedback on the prevalence of the *** result shows that feedback parameters have different and even opposite effects on different ***,by choosing an appropriate value of feedback parameters,the disease could be eradicated or maintained at endemic ***,the infection age of infected individuals may also change the behaviour of the disease,global stable to damped oscillations or damped oscillations to global stable.

关键词： Multi-group model Infection age Feedback Graph-theoretic approach Lyapunov function

Consensus of networked control multi-agent systems using a double-layer encryption scheme

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Journal of Automation and Intelligence 2023年第4期2卷 218-226页

作者： Yamin Yan Zhiyong Chen vijay Varadharajan Department of Electronic and Computer Engineering The Hong Kong University of Science and TechnologyHong KongChina School of Engineering The University of NewcastleCallaghanNSW 2308Australia School of Information and Physical Sciences The University of NewcastleCallaghanNSW 2308Australia

This paper addresses the decentralized consensus problem for a system of multiple dynamic agents with remote controllers via networking,known as a networked control multi-agent system(NCMAS).It presents a challenging scenario where partial dynamic entities or remote control units are vulnerable to disclosure attacks,making them potentially *** tackle this issue,we propose a secure decentralized control design approach employing a double-layer cryptographic *** approach not only ensures that the input and output information of the benign entities remains protected from the malicious entities but also practically achieves consensus *** paper provides an explicit design,supported by theoretical proof and numerical verification,covering stability,steady-state error,and the prevention of computation overflow or underflow.

关键词： Multi-agent systems Networked control Cyberphysical security Encryption Consensus

Mental Foramen:A Predictor of Age and Gender and Guide for Various Procedures

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Forensic Science and Medicine 2018年第2期4卷 76-84页

作者： vijay K Asrani Jigna S Shah Department of Oral Medicine and Radiology Government Dental College and Hospital AhmedabadAhmedabadGujaratIndia

Background:The distance from the inferior border of mental foramen(MF)to lower border of mandible remains constant throughout the *** this fact the present study was carried out to determine role of MF in age and gender estimation and also its importance in planning various *** and Objective:(1)To determine the most common type and shape of MF 2)To measure the height of the mandibular body(H),the distance between the superior margin of the MF to the alveolar crest(SM-AC),the distance between the superior margin of the MF to the inferior border of the mandible(SM-IB),the distance between the inferior margin of the MF to the inferior border(IM-IB)on the right side and left side.(3)To compare the above measurements for age and gender determination.(4)To determine effect of various factors on above measurements(5)to evaluate whether any significant difference in measurement occurs on right and left side.(6)To derive a regression equation for age *** and Methods:A total of 300 Orthopantomogram were *** such as H,SM-AC,SM-IB and IM-IB were carried out on both sides on type II MF in males and females in all the six age *** analysis was carried using IBM SPSS version 24 to determine differences in measurements and linear regression analysis was carried out to determine age of ***:The most common appearance of MF was type II and shape was *** significant differences occurred in measurements using which regressive equation for age estimation was derived for males&***:MF,being a stable landmark in mandible,serves as a good indicator for the determination of age and ***,using certain measurements related to MF,it can help in determining the age of the ***,its position and distance from the alveolar crest serve as a guide for orthognathic surgeries,implant placement,and pre-prosthetic surgery.

关键词： Age gender mental foramen orthopantomogram

Effect of weight-adjusted antimicrobial antibiotic prophylaxis on postoperative dosage and surgical site infection incidence in total joint arthroplasty

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Orthopedics 2024年第4期15卷 318-320页

作者： Ashim Gupta vijay Kumar Jain Department of Orthopaedics and Regenerative Medicine Future BiologicsLawrencevilleGA 30043United States Department of Orthopaedics South Texas Orthopaedic Research Institute(STORI Inc.)LaredoTX 78045United States Department of Regenerative Medicine BioIntegrateLawrencevilleGA 30043United States Department of Orthopaedics and Regenerative Medicine Regenerative OrthopaedicsNoida 201301India Department of Orthopaedics Atal Bihari Vajpayee Institute of Medical SciencesDr Ram Manohar Lohia HospitalNew Delhi 110001India

Surgical site infections(SSI)following total joint arthroplasty pose a significant concern for both providers and patients across the ***,administration of antimicrobial antibiotic prophylaxis is used throughout the world to reduce the incidence of ***,the correct dosage and frequency of administration remains *** this editorial,we emphasized the determination of the effect of administration of weight-adjusted antimicrobial antibiotic prophylaxis regime on the incidence of SSI and postoperative dosage reduction compared to the conventionally used regime during total joint *** results demonstrated similar efficacy between both regimes with respect to the incidence of *** addition,weight-adjustment led to reduced postoperative dosage and has the potential to reduce chances of achieving lower therapeutic concentration,drug resistance,drug toxicity,and costs.

关键词： Antibiotics Antimicrobial prophylaxis Weight-adjusted Surgical site infections Total joint arthroplasty Knee arthroplasty Hip arthroplasty

ASYMPTOTIC APPROXIMATION OF FUNCTIONS AND THEIR DERIVATIVES BY GENERALIZED BASKAKOV-SZAZS-DURRMEYER OPERATORS

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Analysis in Theory and Applications 2005年第1期21卷 15-26页

作者： Ulrich Abel vijay Gupta Mircea Ivan University of Applied Sciences Giessen-Friedberg Netaji Subhas Institute of TechnologyTechnical University of Cluj-Napoca GermanyNew DelhiIndiaRomania

We present the complete asymptotic expansion for a generalization of the Baskakov-Szasz-Durrmeyer operators and their derivatives.

关键词： approximation by positive operators rate of convergence degree of approximation asymptotic expansion Stirling numbers

Autologous peripheral blood-derived orthobiologics:Different types and their effectiveness in managing knee osteoarthritis

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

World Journal of Orthopedics 2024年第5期15卷 400-403页

Knees are the most commonly impacted weight-bearing joints in osteoarthritis(OA),affecting millions of people *** increasing life spans and obesity rates,the incidence of knee OA will further increase,leading to a significant increase in the economic *** treatment modalities utilized to manage knee OA have *** the last decade,the role of various autologous peripheral blood-derived orthobiologics(APBOs)for the treatment of knee OA has been extensively *** editorial provided an overview and focused on defining and shedding light on the current state of evidence based on the most recent published clinical studies concerning the use of APBO for the management of knee *** numerous studies have demonstrated promising results for these preparations,a notable gap exists in the comparative analysis of these diverse *** absence of head-to-head studies poses a considerable challenge for physicians/surgeons in determining the optimal preparation for managing knee OA and achieving sustained longterm ***,more adequately powered,multicenter,prospective,doubleblind,randomized controlled trials with longer follow-ups are needed to establish the long-term efficacy and to aid physicians/surgeons in determining the optimal APBO for the management of knee OA.

关键词： Knee osteoarthritis Platelet-rich plasma Platelet lysate Autologous conditioned serum Gold-induced cytokine Plasma rich in growth factors Growth factor concentrate Autologous protein solution Platelet-rich fibrin Hyperacute serum

Vertical Sediment Concentration Distribution in High-Concentrated Flows:An Analytical Solution Using Homotopy Analysis Method

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Communications in Theoretical Physics 2018年第9期69卷 367-378页

作者： Manotosh Kumbhakar Jitraj Saha Koeli Ghoshal Jitendra Kumar vijay P.Singh Department of Mathematics Indian Institute of Technology KharagpurKharagpur 721302India Department of Mathematics National Institute of TechnologyTiruchirappalliTamil Nadu 620015India Department of Biological and Agricultural Engineering&Zachry Department of Civil Engineering Texas A~M UniversityCollege StationTX 77843USA

Transport of suspended sediment in open channel flow has an enormous impact on real life situations,*** and management of reservoir sedimentation,geomorphic evolution such as dunes,rivers,and coastlines *** entails advection and *** diffusion is governed by the concept of Fick’s law,which is based on the molecular diffusion theory,and the equation that represents the distribution of sediment concentration is the advection-diffusion *** study uses the existing governing equation which considers different phases for solid and fluid,and then couples the two *** deal with high-concentrated flow,sediment and turbulent diffusion coefficients are taken to be different from each *** effect of hindered settling on sediment particles is incorporated in the governing equation,which makes the equation highly *** study derives an explicit closed-form analytical solution to the generalized one-dimensional diffusion equation representing the vertical sediment concentration distribution with an arbitrary turbulent diffusion coefficient *** solution is obtained by Homotopy Analysis Method,which does not rely on the small parameters present in the ***,the solution is validated by comparing it with the implicit solution and the numerical solution.A relevant set of laboratory data is selected to check the applicability of the model,and a close agreement shows the potential of the model in the context of application to high-concentrated sediment-laden open channel flow.

关键词： open channel flow diffusion equation hunt equation homotopy analysis method