检索结果-南通市图书馆

Human-Exoskeleton Joint Coordination Assessment:A Case Study on the Shoulder and Elbow Joints

在线全文

学校读者我要写书评

暂无评论

Journal of Bionic Engineering 2022年第6期19卷 1712-1721页

作者： pablo Delgado Clarissa Rincon Yimesker Yihun Mechanical Engineering Wichita State University1845 FairmountWichitaKS67260USA Biomedical Engineering Wichita State University1845 FairmountWichitaKS67260USA

This study is aimed at developing a methodology to assess and quantify the human limb motions and interactions with the exoskeleton in relation to *** different basic and common upper arm joint movements and their interaction with a joint-based exoskeleton are considered:shoulder vertical and horizontal abduction-adduction,and elbow *** exoskeleton and the human model are aligned to the respective joints inside a Musculoskeletal Modeling *** the range of motion,the linear and angular displacement errors were analyzed,and the effect of those errors on the length of the associated tendons was *** have shown a noticeable variation of the muscle-tendon lengths up to 65.7 mm and a change in the pattern on different muscle groups of the ***,about 4 mm muscle-tendon length changes observed particularly at the elbow anconeus *** changes of length could cause unwanted stresses at the joints,specially for people with disabilities due to stroke that might not have the flexibility to accommodate those extra pose variations imposed by the exoskeleton.

关键词： Exoskeleton Upper limb Rehabilitation Misalignment OpenSim Computational modeling Bioinspiration

Folate Metabolism Interferes with Plant Immunity through 1C Methionine Synthase-Directed Genome-wide DNA Methylation Enhancement

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Molecular Plant 2019年第9期12卷 1227-1242页

作者： Beatriz Gonzalez pablo Vera Instituto de Biologia Molecular y Celular de Plantas Universidad Politecnica de Valencia-C.S.I.CCiudad Politecnica de la InnovacionEdificio 8EIngeniero Fausto Elios/n.46022 ValenciaSpain

Plants rely on primary metabolism for flexible adaptation to environmental ***,through a combination of chemical genetics and forward genetic studies in Arabidopsis plants,we identified that the essential folate metabolic pathway exerts a salicylic acid-independent negative control on plant *** of the folate pathway promotes enhanced resistance to Pseudom onas syringae DC3000 via activation of a primed immune state in plants,whereas its implementation results in enhanced *** proteomics analysis using immune-defective mutants identified a methionine synthase(METS1),in charge of the synthesis of Met through the folate-dependent 1C metabolism,acting as a nexus between the folate pathway and plant *** of METS1 represses plant immunity and is accompanied by genome-wide global increase in DNA methylation,revealing that imposing a methylation pressure at the genomic level compromises plant *** together,these results indicate that the folate pathway represents a new layer of complexity in the regulation of plant defense responses.

关键词： folate pathway plant immunity methionine DNA methylation

THE BLOCH SPACE ON THE UNIT BALL OF A HILBERT SPACE: MAXIMALITY AND MULTIPLIERS

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Acta Mathematica Scientia 2021年第3期41卷 899-906页

作者： pablo GALINDO Mikael LINDSTRÖM Departamento de Análisis Matemático Universidad de Valencia.C/Dr.Moliner 50.46.100BurjasotValenciaSpain Department of Mathematics Abo Akademi University.FI-20500ÅboFinland

We prove that, as in the finite dimensional case, the space of Bloch functions on the unit ball of a Hilbert space contains, under very mild conditions, any semi-Banach space of analytic functions invariant under automorphisms. The multipliers for such Bloch space are characterized and some of their spectral properties are described.

关键词： Analytic functions on Hilbert space invariance under automorphisms multiplier

Weak Gravity Conjecture and extremal black holes

在线全文

学校读者我要写书评

暂无评论

Science China(Physics,Mechanics & Astronomy) 2019年第11期62卷 69-86页

作者： William Cottrell Gary Shiu pablo Soler Department of Physics University of WisconsinMadison WI53706USA Institut fur Theoretische Physik Universitat HeidelbergPhilosophenweg19Heidelberg D-69120Germany

Motivated by the desire to improve our understanding of the Weak Gravity Conjecture, we compute the one-loop correction of charged particles to the geometry and entropy of extremal black holes in 4D. We use the entropy function formalism to extend previous analysis that dealt with neutral particles, and obtain the corrections to the horizon entropy for different regimes of black hole masses. These corrections are small in general. They are furthermore reduced when supersymmetry is present, and disappear in N = 4 supergravity. We provide some speculative arguments that in a theory with only sub-extremal particles, classical Reissner-Nordstrom black holes actually possess an infinite microcanonical entropy, though only a finite amount is visible to an external observer, as shown by the horizon entropy computation.

关键词： black holes string theory entropy

An ACO-RFD hybrid method to solve NP-complete problems

在线全文

学校读者我要写书评

暂无评论

Frontiers of Computer Science 2013年第5期7卷 729-744页

作者： pablo RABANAL Ismael RODRIGUEZ Fernando RUBIO Dept. Sistemas Inforrnaiticos y Computacion Facultad de Informatica Universidad Complutense de Madrid Madrid 28040 Spain

In this paper we hybridize ant colony optimiza- tion （ACt） and river formation dynamics （RFD）, two related swarm intelligence methods. In ACt, ants form paths （prob- lem solutions） by following each other＇s pheromone trails and reinforcing trails at best paths until eventually a single path is followed. On the other hand, RFD is based on copy- ing how drops form rivers by eroding the ground and de- positing sediments. In a rough sense, RFD can be seen as a gradient-oriented version of ACt. Several previous experi- ments have shown that the gradient orientation of RFD makes this method solve problems in a different way as ACt. In particular, RFD typically performs deeper searches, which in turn makes it find worse solutions than ACt in the first exe- cution steps in general, though RFD solutions surpass ACt solutions after some more time passes. In this paper we try to get the best features of both worlds by hybridizing RFD and ACt. We use a kind of ant-drop hybrid and consider both pheromone trails and altitudes in the environment. We apply the hybrid method, as well as ACt and RFD, to solve two NP-hard problems where ACt and RFD fit in a different manner： the traveling salesman problem （TSP） and the prob- lem of the minimum distances tree in a variable-cost graph （MDV）. We compare the results of each method and we an- alyze the advantages of using the hybrid approach in each case.

关键词： river formation dynamics ant colony optimization heuristic algorithms NP-hard problems

Parallel array with axially coded light-sheet microscope

在线全文

学校读者我要写书评

暂无评论

Light(Science & Applications) 2020年第1期9卷 1387-1388页

作者： pablo Loza-Alvarez ICFO-The Institute of Photonic Sciences The Barcelona Institute of Science and Technology08860 CastelldefelsBarcelonaSpain

A parallel array of frequency modulated light sheets results in a scanning-less light sheet microscope capable of fast volumetric imaging.

关键词： array light axial

Two haplotype-resolved genome assemblies for AAB allotriploid bananas provide insights into banana subgenome asymmetric evolution and Fusarium wilt control

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 Communications 2024年第2期5卷 243-260页

作者： Wen-Zhao Xie Yu-Yu Zheng Weidi He Fangcheng Bi Yaoyao Li Tongxin Dou Run Zhou Yi-Xiong Guo Guiming Deng Wenhui Zhang Min-Hui Yuan pablo Sanz-Jimenez Xi-Tong Zhu Xin-Dong Xu Zu-Wen Zhou Zhi-Wei Zhou Jia-Wu Feng Siwen Liu Chunyu Li Qiaosong Yang Chunhua Hu Huijun Gao Tao Dong Jiangbo Dang Qigao Guo Wenguo Cai Jianwei Zhang Ganjun Yi Jia-Ming Song Ou Sheng Ling-Ling Chen Institute of Fruit Tree Research Guangdong Academy of Agricultural SciencesKey Laboratory of South Subtropical Fruit Biology and Genetic Resource UtilizationMinistry of Agriculture and Rural AffairsGuangdong Provincial Key Laboratory of Tropical and Subtropical Fruit Tree ResearchGuangzhou 510640China College of Informatics Huazhong Agricultural UniversityWuhan 430070China State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources College of Life Science and TechnologyGuangxi UniversityNanning 530004China College of Horticulture and Landscape Architecture Southwest UniversityChongqing 400715China

Bananas(Musa spp.)are one of the world’s most important fruit crops and play a vital role in food security for many developing *** banana cultivars are triploids derived from inter-and intraspecific hybrid-izations between the wild diploid ancestor species Musa acuminate(AA)and ***(BB).We report two haplotype-resolved genome assemblies of the representative AAB-cultivated types,Plantain and Silk,and precisely characterize ancestral contributions by examining ancestry mosaics across the *** asymmetric evolution is observed in their subgenomes,which can be linked to frequent homol-ogous exchange *** reveal the genetic makeup of triploid banana cultivars and verify that subge-nome B is a rich source of disease resistance *** 58.5%and 59.4%of Plantain and Silk genes,respectively,are present in all three haplotypes,with>50%of genes being differentially expressed alleles in different *** observed that the number of upregulated genes in Plantain is significantly higher than that in Silk at one-week post-inoculation with Fusarium wilt tropical race 4(Foc TR4),which con-firms that Plantain can initiate defense responses faster than ***,we compared genomic and transcriptomic differences among the genes related to carotenoid synthesis and starch metabolism between Plantain and *** study provides resources for better understanding the genomic architecture of culti-vated bananas and has important implications for Musa genetics and breeding.

关键词： bananas Plantain Silk asymmetric evolution homologous exchange Fusarium wilt

Recent advances in graphene and other 2D materials

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Nano Materials Science 2022年第1期4卷 3-9页

作者： pablo Ares Kostya S.Novoselov Department of Physics&Astronomy and National Graphene Institute University of ManchesterManchesterM139PLUK Centre for Advanced 2D Materials National University of Singapore117546Singapore Chongqing 2D Materials Institute Lingjiang New Area Chongqing 400714China

The isolation of the first two-dimensional material, graphene-a monolayer of carbon atoms arranged in a hexagonal lattice-opened new exciting opportunities in the field of condensed matter physics and materials. Its isolation and subsequent studies demonstrated that it was possible to obtain sheets of atomically thin crystals and that these were stable, and they also began to show its outstanding properties, thus opening the door to a whole new family of materials, known as two-dimensional materials or 2D materials. The great interest in different 2D materials is motivated by the variety of properties they show, being candidates for numerous ***, the combination of 2D crystals allows the assembly of composite, on-demand materials, known as van der Waals heterostructures, which take advantage of the properties of those materials to create functionalities that otherwise would not be accessible. For example, the combination of 2D materials, which can be done with high precision, is opening up opportunities for the study of new challenges in fundamental physics and novel applications. Here we review the latest fundamental discoveries in the area of 2D materials and offer a perspective on the future of the field.

关键词： 2D materials Graphene Molybdenum disulphide Tarition mebl dichalogenides Hexagonal boron nitride van der waals heterostructus Ulrathin nanomaterials

Storylines of family medicine Ⅴ:ways of thinking—honing the therapeutic self

在线全文

学校读者我要写书评

暂无评论

Family Medicine and Community Health 2024年第S3期12卷 43-51页

作者： William B Ventres Leslie A Stone Johanna F Shapiro Cynthia Haq Jéssica R B Leao Donald E Nease Jr Liz Grant Stewart W Mercer John C M Gillies pablo González Blasco Maria Auxiliadora C De Benedetto Graziela Moreto Marcelo R Levites Jennifer E DeVoe William R Phillips Jane M Uygur Thomas R Egnew Colette S Stanley Family and Preventive Medicine University of Arkansas for Medical Sciences College of MedicineLittle RockArkansasUSA Family Medicine University of California Irvine School of MedicineIrvineCaliforniaUSA Faculty of Medicine University of Sao PauloSao PauloBrazil Family Medicine University of Colorado Anschutz Medical Campus School of MedicineAuroraColoradoUSA Usher Institute Edinburgh Medical SchoolUniversity of EdinburghEdinburghUK SOBRAMFA-Medical Education and Humanism Sao PauloBrazil Family Medicine Oregon Health&Science University School of MedicinePortlandOregonUSA Family Medicine University of Washington School of MedicineSeattleWashingtonUSA General Practice Royal College of Surgeons in IrelandDublinIreland General Internal Medicine Geriatrics&Palliative MedicineTulane University School of MedicineNew OrleansLouisianaUSA

Storylines of Family Medicine is a 12-part series of thematically linked essays with accompanying illustrations that explore the many dimensions of family medicine,as interpreted by individual family physicians and medical educators in the USA and elsewhere around the ***‘Ⅴ:ways of thinking—honing the therapeutic self’,authors present the following sections:‘Reflective practice in action’,‘The doctor as drug—Balint groups’,‘Cultivating compassion’,‘Towards a humanistic approach to doctoring’,‘Intimacy in family medicine’,‘The many faces of suffering’,‘Transcending suffering’and‘The power of listening to stories.’May readers feel a deeper sense of their own therapeutic agency by reflecting on these essays.

关键词： illustration dimensions suffering