检索结果-南通市图书馆

BANACH SPACES AND INEQUALITIES ASSOCIATED WITH NEW GENERALIZATION OF CESàRO MATRIX

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

Acta Mathematica Scientia 2023年第4期43卷 1518-1536页

作者： Feyzi BASar Hadi ROOPAEI Department of Primary Mathematics Teacher Education Inonu University44280–MalatyaTurkiye Department of Mathematics and Statistics University of VictoriaVictoriaCanada

Let the triangle matrix A^(ru)be a generalization of the Cesàro matrix and U∈{c_(0),c,l_(∞)}.In this study,we essentially deal with the space U(A^(ru))defined by the domain of A^(ru)in the space U and give the bases,and determine the Kothe-Toeplitz,generalized K?theToeplitz and bounded-duals of the space U(A^(ru)).We characterize the classes(l_(∞)(A^(ru)):l_(∞)),(l_(∞)(A^(ru)):c),(c(A^(ru)):c),and(U:V(A^(ru)))of infinite matrices,where V denotes any given sequence ***,we also present a Steinhaus type *** an another result of this study,we investigate the l_(p)-norm of the matrix A^(ru)and as a result obtaining a generalized version of Hardy's inequality,and some inclusion ***,we compute the norm of well-known operators on the matrix domain l_(p)(A^(ru)).

关键词： matrix domain normed sequence space duals and matrix transformations

Epigenetic and Posttranscriptional Regulation in Retinoblastoma

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

Advances in Bioscience and Biotechnology 2023年第4期14卷 190-209页

作者： Tovar-Hernández Karla Ruíz-Cruz Matilde Marco Antonio meraz-Ríos Department of Molecular Biomedicine Cinvestav Zacatenco Mexico City Mexico Research Department Asociación Para Evitar la Ceguera Mexico City Mexico

The Retinoblastoma 1 (RB1) gene, located on chromosome 13q14 and encodes the tumor-suppressor retinoblastoma protein, is the cause of Retinoblastoma. The mutational inactivation of both gene alleles brings on this cancer. Retinoblastoma (RB) high-risk histopathological characteristics indicate metastasis or local recurrence with rapid progresses following RB1 inactivation. There is growing interest in regulatory activities unconnected to the coding region of the genome, or exome, in addition to epigenetic control mechanisms. The altered epigenome is significant, though by no means the only, problem in the etiology of Retinoblastoma. After all, cancer development is a multistep process in which numerous dissimilar genetic, epigenetic, and posttranscriptional modifications result in a shared phenotype. This study emphasizes the most recent developments in posttranscriptional change and epigenetics related to retinoblastoma tumor biology. Here, we highlight the novel biomarkers the retinoblastoma tumor has expressed to improve patient survival.

关键词： Retinoblastoma Epigenetic ncRNAs miRNAs lncRNAs circRNAs ceRNAs

Efficiency Performances of LVDC Supplies for Residential Building

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Computer Systems Science & Engineering 2023年第5期45卷 2171-2186页

作者： Anis Ammous Ammar Alsaedi Ahmed N.M.Alahmadi Fahad Alharbi Kaiçar Ammous Department of Electrical Engineering College of Engineering and Islamic ArchitectureUmm Al Qura UniversityMakkahKSA

The Low Voltage Direct Current(LVDC)architecture gives higher benefits over the classic low-voltage alternating current(LVAC)supply *** has fewer energy conversion stages,is compatible with renewable energy sources,and is easier to integrate with *** this paper,an LVDC supply concept is proposed and compared with currently used conventional photovoltaic(PV)systems in terms of *** new LVDC photovoltaic system behavior is validated using LTspice modeling *** findings of this work prove that the concept of LVDC supply is highly attractive when the electricity produced by the photovoltaic is used onsite in the *** carry out an efficient system,the PV power mounted in the houses should be precisely rated with respect to the magnitude of the load energy *** proposed three house examples to verify the superiority of our proposed system in comparison with the traditional LVDC PV *** annual analysis of the energy saved by the studied systems was carried *** main benefit of the suggested LVDC supply is the short way taken by the energy generated by the photovoltaic system to supply DC loads within daytime *** registered increase in system efficiency reached more than 20%for the proposed LVDC system.

关键词： Sustainable energy energy saving power conversion solar PV system

Improving thermal comfort in mosques of hot-humid climates through passive and lowenergy design strategies

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Frontiers of architectural Research 2023年第2期12卷 361-385页

作者： Nabeeha Amatullah Azmi Azhaili Baharun Müslüm arıcı Siti Halipah Ibrahim Faculty of Engineering Universiti Malaysia Sarawak94300 SarawakMalaysia Faculty of Built Environment Universiti Malaysia Sarawak94300 SarawakMalaysia Engineering Faculty Kocaeli University41001 KocaeliTurkey

Mosques have intermittent operational schedules with short-term occupancy during the five daily *** occupancy level of the daily prayers is a fraction compared to the mandatory Friday prayers with full ***,the same thermal control mechanism is operated within the same large prayer hall to maintain the thermal comfort of the ***,the comfort requirements are often not met due to the short span of operation during prayer ***,mosques have a very high energy usage as the same energyintensive system is operated even during minimal occupancy *** current research aims at using a passive approach towards design to achieve the comfort conditions during the low occupancy daily prayer times without employing mechanical *** simulations are carried out on a validated model of the case study building to investigate the impact of the west-facing Qiblah wall as the congregation stands in proximity to this *** design alternatives are tested in conjunction with ventilation strategies to holistically assess the thermal comfort of the *** show that as much as 4-6℃reduction in indoor wall surface temperature can be achieved with a suitable Qiblah wall design,which reduces the mean radiant temperature of the occupants by 2-4℃.Combined with ventilation strategies,thermal comfort can be significantly improved by at least 40%for the prayers during the hottest times of the day,and as much as 80%for night-time *** suggest that suitable comfort conditions can be achieved without the need for air-conditioning for at least two or three of the five daily prayers.

关键词： Mosque building Thermal comfort Passive design strategy Natural ventilation Intermittent occupancy Hot-humid climate

Surgical Complications in Breast Reconstruction: Assessment and Associations

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 Biosciences and Medicines 2023年第6期11卷 171-181页

作者： Daniel De-Luna-Gallardo Jaime aron García-Espinoza Cuahútemoc Márquez-Espriella Blanca Yadira arámbula-Sánchez Marco Antonio Cuervo-Vergara Rodrigo Dávila-Diaz Ricardo García-Corral Fernando Barbosa-Villarreal Fernando Isaac Recio-España Alberto Ignacio Cahuana-Quispe Plastic and Reconstructive Surgery Department Central South High Specialty Hospital of Petróleos Mexicanos Mexico City Mexico Plastic and Reconstructive Surgery Department Petróleos Mexicanos North Central Hospital Mexico City Mexico

Introduction: Breast cancer represents a pathology that generates catastrophic impact and has recently increased its incidence and survival due to timely diagnosis and treatment. Therefore, improving the quality of life of cancer survivors has become a priority, offering reconstructive procedures that reduce complications, costs, hospital stay, and optimize resources. Material and methods: 264 patients reconstructed with autologous tissue (TRAM flap and latissimus dorsi) and alloplastic (breast tissue expander—breast implant and direct breast implant) were included. Variables such as demographic, anthropometric, and histologic type were collected. Results: 62% were reconstructed through the use of alloplastics and 38% with autologous tissue. The risk factors related to a greater probability of immediate postoperative complications (surgical site infection, surgical wound dehiscence and reconstruction failure) were obesity (OR: 2.1, CI: 1.5 - 2.7), preoperative radiation (OR: 1.89, CI: 1.75 - 1.92), arterial hypertension (OR: 1.2), Diabetes Mellitus (OR: 1.78) and smoking (OR: 1.31). Conclusions: The reconstructive process is complex and influenced by patient factors, surgeon experience and the hospital center. However, when choosing the reconstructive strategy, risk factors present in each patient must be considered, since radiation and obesity present a greater probability of postoperative complications.

关键词： Breast Cancer Breast Reconstruction Obesity Radiotherapy TRAM

are scorpion stings the new public health threat for southeast Turkey and northern Syria after the earthquakes?An emphasis on Leiurus quinquestriatus

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 Acute Disease 2023年第4期12卷 131-132页

作者： Mehmet Uçar Department of Medical Services and Techniques MuşAlparslan UniversityMuşTurkey

In tropical countries,scorpion sting is a significant cause of disease,leading to severe localized cutaneous reactions,neurologic impairments,and respiratory distress,as well as myocarditis[1].The world’s most poisonous scorpion species,Leiurus quinquestriatus,is found in southern Turkey and is a threat to the public’s health in all of the provinces,particularly in Adiyaman and its surrounding areas,which were hit by the recent Turkey and Syria earthquake[1].

关键词： southeast earthquake tropical

The CircRNAs for Diagnostic, Prognostic, and Therapy in Alzheimer’s Disease

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Advances in Bioscience and Biotechnology 2022年第12期13卷 507-526页

作者： Erika Alejandra Cabrera-Reyes Miguel Ángel Jiménez-Acosta Mayte Lizeth Padilla-Cristerna Marco Antonio meraz-Ríos Department of Molecular Biomedicine Center of Investigation and Advances Studies IPN México City México

The structure and biological function of circular RNAs (circRNAs) in regulating gene expression in a cell is far from known. CircRNAs are unique molecules that contain potent regulatory elements. CircRNAs actively interact with miRNAs (sponging), affecting their regulation and functions. In addition, circRNAs have roles in transcriptional regulation, splicing, and peptide synthesis. With all these properties, circRNAs could play an essential role in diseases, especially Alzheimer’s. Their role in early diagnosis, previous to present symptoms, prognosis associated with neuropathological AD of specific circRNAs, and one of their primary functions is to act as a sponge for miRNAs, which could be a starting point for future gene therapy. This review aims to summarize the current knowledge of these exciting molecules and their potential use as new markers for AD risk. This article will focus on circRNAs deregulated in Alzheimer’s.

关键词： CircRNA Alzheimer’s Disease miRNAs Diagnosis Therapy Dementia

Palladium-induced electron-transfer reaction of difluorodiiodomethane with alkenes

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 Journal of Chemistry 1996年第6期14卷 549-554页

作者： Li, ar Chen, QY CHINESE ACAD SCI SHANGHAI INST ORGAN CHEMSHANGHAI 200032PEOPLES R CHINA

The addition reaction of difluorodiiodomethane (1) with alkenes in the presence of PdCl2(PPh(3))(2) or Pd(PPh(3))(4) afforded the corresponding iododifluoromethylated compounds in excellent yield.

关键词： difluorodiiodomethane alkenes palladium complex

A public health perspective on dengue in Bangladesh in the twenty-first century

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 Acute Disease 2023年第6期12卷 255-256页

作者： Mehmet Uçar Department of Medical Services and Techniques Varto Vocational SchoolMuşAlparslan UniversityMuşTurkey

Infectious diseases have accompanied human history from time *** the 21st century,we have witnessed striking pandemics such as severe acute respiratory syndrome,middle east respiratory syndrome,malaria,and coronavirus... 详细信息

关键词： respiratory acute diseases