检索结果-南通市图书馆

Plant nitrogen Metabolism: Balancing Resilience to nutritional Stress andAbiotic Challenges

在线全文

学校读者我要写书评

暂无评论

Phyton-International Journal of Experimental Botany 2024年第3期93卷 581-609页

作者： Muhammad Farhan Manda Sathish Rafia Kiran Aroosa Mushtaq Alaa Baazeem Ammarah Hasnain Fahad Hakim syed Atif Hasan naqvi Mustansar Mubeen Yasir Iftikhar Aqleem Abbas Muhammad Zeeshan Hassan Mahmoud Moustafa Department of Plant Pathology Faculty of Agricultural Sciences&TechnologyBahauddin Zakariya UniversityMultan60800Pakistan Centro de Investigación de Estudios Avanzados del Maule(CIEAM) Vicerrectoría de Investigación y PostgradoUniversidad Católica del MauleTalca3460000Chile College of Food Science and nutritional Engineering China Agricultural UniversityBeijingChina Department of Biology College of ScienceTaif UniversityP.O.Box 11099Taif21944Saudi Arabia Department of Biotechnology Faculty of Biological SciencesLahore University of Biological and Applied SciencesLahorePakistan Department of Plant Pathology College of AgricultureUniversity of SargodhaSargodha40100Pakistan Department of Agriculture and Food Technology Karakorum International UniversityGilgitPakistan Department of Biology Faculty of ScienceKing Khalid UniversityAbhaSaudi Arabia

Plant growth and resilience to abiotic stresses,such as soil salinity and drought,depend intricately on nitrogen *** review explores nitrogen’s regulatory role in plant responses to these challenges,unveiling a dynamic interplay between nitrogen availability and abiotic *** the context of soil salinity,a nuanced rela-tionship emerges,featuring both antagonistic and synergistic interactions between salinity and nitrogen ***-induced chlorophyll depletion in plants can be alleviated by optimal nitrogen supplementation;however,excessive nitrogen can exacerbate salinity *** delve into the complexities of this interaction and its agri-cultural ***,a vital element within essential plant structures like chloroplasts,elicits diverse responses based on its *** review comprehensively examines manifestations of nitrogen deﬁciency and toxicity across various crop types,including cereals,vegetables,legumes,and ***,we explore the broader consequences of nitrogen products,such as n_(2)O,nO_(2),and ammonia,on human ***-ing the intricate relationship between nitrogen and salinity,especially chloride accumulation in nitrate-fed plants and sodium buildup in ammonium-fed plants,is pivotal for optimizing crop nitrogen ***,prudent nitrogen use is essential,as overapplication can exacerbate nitrogen-related *** Use Efﬁ-ciency(nUE)is of paramount importance in addressing salinity challenges and enhancing sustainable crop *** this goal requires advancements in crop varieties with efﬁcient nitrogen utilization,pre-cise timing and placement of nitrogen fertilizer application,and thoughtful nitrogen source selection to mitigate losses,particularly urea-based fertilizer *** review article delves into the multifaceted world of plant nitrogen metabolism and its pivotal role in enabling plant resilience to nutritional stress and abiotic chall

关键词： Synthetic nitrogen nitrogen signaling sustainable agriculture eutrophication ammonium nitrate

Low testing rates and high BRCA prevalence: Poly (ADP-ribose) polymerase inhibitor use in Middle East BRCA/homologous recombination deficiency-positive cancer patients

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 Clinical Oncology 2024年第7期15卷 848-858页

作者： n.veed syed Ashish Vittalrao Chintakuntlawar Deepti Vilasini Aisha Mohamed Al Salami Riad Al Hasan Imrana Afrooz Kanishka Uttam Chandani Ashok Uttam Chandani Aref Chehal Department of Hematology and Oncology Sheikh Shakbout Medical CityAbu Dhabi 11001United Arab Emirates Department of Oncology Mayo ClinicRochesterNY 790339United States Department of Oncology Sheikh Shakbout Medical CityAbu Dhabi 11001United Arab Emirates Clinical Research Sheikh Shakbout Medical CityAbu Dhabi 11001United Arab Emirates Department of Internal Medicine Landmark Medical CenterRhode IslandRI 02895United States

BACKGROUnD Poly(ADP-ribose)polymerase inhibitors(PARPis)are approved as first-line therapies for breast cancer gene(BRCA)-positive,human epidermal growth factor receptor 2-negative locally advanced or metastatic breast *** are also effective for new and recurrent ovarian cancers that are BRCA-or homologous recombination deficiency(HRD)-***,data on these mutations and PARPi use in the Middle East are *** To assess BRCA/HRD prevalence and PARPi use in patients in the Middle East with breast/ovarian *** This was a single-center retrospective study of 57 of 472 breast cancer patients tested for BRCA mutations,and 25 of 65 ovarian cancer patients tested for *** adult patients participated in at least four visits to the oncology service at our center between August 2021 and May *** were summarized using descriptive statistics and compared using counts and *** to treatment was assessed using Response Evaluation Criteria in Solid Tumors *** Among the 472 breast cancer patients,12.1%underwent BRCA testing,and 38.5%of 65 ovarian cancer patients received HRD *** mutations were found in 25.6%of the tested patients:26.3%breast cancers had germline BRCA(gBRCA)mutations and 24.0%ovarian cancers showed ***,40.0%of gBRCA-positive breast cancers and 66.0%of HRD-positive ovarian cancers were Middle Eastern and Asian patients,*** treatment was used in 5(33.3%)gBRCA-positive breast cancer patients as first-line therapy(n=1;7-months progression-free),for maintenance(n=2;>15-months progression-free),or at later stages due to compliance issues(n=2).Four patients(66.6%)with HRD-positive ovarian cancer received PARPi and all remained *** Lower testing rates but higher BRCA mutations in breast cancer were *** reflected United Arab Emirates demographics,with breast cancer in Middle Eastern and ovarian cancer in Asian patients.

关键词： Homologous recombination repair BRCA1 BRCA2 Homologous recombination deficiency Ovarian cancer Breast cancer Poly(ADP-ribose)polymerase inhibitors Olaparib DnA double-strand breaks

Slender reinforced concrete shear walls with high-strength concrete boundary elements

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 Structural and Civil Engineering 2023年第1期17卷 138-151页

作者： Mohammad syed Pinar OKUMUS Department of Civil Structural and Environmental EngineeringUniversity at BuffaloBuffaloNY 14260USA

Reinforced concrete structural walls are commonly used for resisting lateral forces in buildings. Owing to the advancements in the field of concrete materials over the past few decades, concrete mixes of high compressive strength, commonly referred to as high-strength concrete (HSC), have been developed. In this study, the effects of strategic placement of HSC on the performance of slender walls were examined. The finite-element model of a conventional normal-strength concrete (nSC) prototype wall was validated using test data available in extant studies. HSC was incorporated in the boundary elements of the wall to compare its performance with that of the conventional wall at different axial loads. Potential reductions in the reinforcement area and size of the boundary elements were investigated. The HSC wall exhibited improved strength and stiffness, and thereby, allowed reduction in the longitudinal reinforcement area and size of the boundary elements for the same strength of the conventional wall. Cold joints resulting from dissimilar concrete pours in the web and boundary elements of the HSC wall were modeled and their impact on behavior of the wall was examined.

关键词： slender walls high-strength concrete rectangular and barbell-shaped walls cold joints

Laboratory to field scale assessment for EOR applicability in tight oil reservoirs

在线全文

学校读者我要写书评

暂无评论

Petroleum Science 2022年第5期19卷 2131-2149页

作者： Fahad Iqbal syed Amirmasoud Kalantari Dahaghi Temoor Muther Center for net Carbon Zero GeoEnergy Intelligence and Sustainability(C0GEiS) USA The University of Kansas School of EngineeringChemical and Petroleum Engineering1450 Jayhawk Blvd.LawrenceKS66045USA

Tight oil reservoirs are contributing a major role to fulfill the overall crude oil needs,especially in the ***,the dilemma is their ultra-tight permeability and an uneconomically short-lived primary recovery ***,the application of EOR in the early reservoir development phase is considered effective for fast-paced and economical tight oil *** achieve these objectives,it is imperative to determine the optimum EOR potential and the best-suited EOR application for every individual tight oil reservoir to maximize its ultimate recovery *** most of the tight oil reservoirs are found in wide spatial source rock with complex and compacted pores and poor geophysical properties yet they hold high saturation of good quality oil and therefore,every single percent increase in oil recovery from such huge reservoirs potentially provide an additional million barrels of ***,the EOR application in such reservoirs is quite ***,the physical understanding of EOR applications in different circumstances from laboratory to field scale is the key to success and similarly,the fundamental physical concepts of fluid flow-dynamics under confinement conditions play an important *** paper presents a detailed discussion on laboratory-based experimental achievements at micro-scale including fundamental concepts under confinement environment,physics-based numerical studies,and recent actual field piloting experiences based on the *** *** objective of this paper is to discuss all the critical reservoir rock and fluid properties and their contribution to reservoir development through massive multi-staged hydraulic fracture networks and the EOR *** the CO_(2)and produced hydrocarbon gas injection through single well-based huff-n-puff operational constraints are discussed in detail both at micro and macro scale.

关键词： UEOR UEOR pilots Shale oil Tight oil reservoir Gas injection Hydraulic fracture Huff-n-puff

Unstructured Oncological Image Cluster Identification Using Improved Unsupervised Clustering Techniques

在线全文

学校读者我要写书评

暂无评论

Computers, Materials & Continua 2022年第7期72卷 281-299页

作者： S.Sreedhar Kumar syed Thouheed Ahmed Qin Xin S.Sandeep M.Madheswaran syed Muzamil Basha Dr.T.Thimmaiah Institute of Technology VTUKGFKarnatakaIndia School of Computing&Information Technology REVA UniversityBengaluruIndia Faculty of Science and Technology University of the Faroe IslandsFaroe IslandsDenmark K S School of Engineering BengaluruIndia Muthayammal Engineering College RasipuramTamil NaduIndia

This paper presents,a new approach of Medical Image Pixels Clustering(MIPC),aims to trace the dissimilar patterns over the Magnetic Resonance(MR)image through the process of automatically identify the appropriate number of distinct clusters based on different improved unsupervised clustering schemes for enrichment,pattern predication and deeper *** proposed MIPC consists of two stages:clustering and *** the clustering stage,the MIPC automatically identifies the distinct number of dissimilar clusters over the gray scale MR image based on three different improved unsupervised clustering schemes likely improved Limited Agglomerative Clustering(iLIAC),Dynamic Automatic Agglomerative Clustering(DAAC)and Optimum n-Means(OnM).In the second stage,the performance of MIPC approach is estimated by measuring Intra intimacy and Intra contrast of each individual cluster in the result of MR image based on proposed validation method namely Shreekum Intra Cluster Measure(SICM).Experimental results showthat the MIPC approach is better suited for automatic identification of highly relative dissimilar clusters over the MR cancer images with higher Intra closeness and lower Intra contrast based on improved unsupervised clustering schemes.

关键词： Magnetic resonance image unsupervised clustering scheme intra intimacy intra contrast iLIAC shreekum intra cluster measure medical image clustering

Eliminating the Unruh effect of relativistic Dirac fields by partial measurements

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 2020年第12期72卷 130-136页

作者： n A Khan syed Tahir Amin Munsif Jan Centro de Física das Universidades do Minho e Porto Departamento de Física e AstronomiaFaculdade de CiênciasUniversidade do Porto4169-007 PortoPortugal Departamento de Física Instituto Superior TécnicoUniversidade de LisboaAv.Rovisco Pais1049-001 LisboaPortugal CeFEMA Instituto Superior TécnicoUniversidade de LisboaAv.Rovisco Pais1049-001 LisboaPortugal Instituto de Telecomunicacoes LAv.Rovisco Pais1049-001 LisboaPortugal CAS Key Laboratory of Quantum Information University of Science and Technology of ChinaHefei 230026China

The retrieval of lost entanglement for relatively accelerated fermionic observers of a tripartite system by a partial measurement technique has been *** the prospective of the negativities of one-tangles and theπ-tangle,we show that the degraded entanglement in noninertial frames with single-mode approximation is completely retrieved by an optimal strength of the partial measurement or the partial measurement *** addition,we find that the optimal one-tangle with respect to inertial and noninertial observers turns out to be the same for an optimal strength of partial measurements at q0=0 when two accelerated observers move with infinite acceleration.

关键词： entanglement retrieval π-tangle Unruh decoherence

SAMPLED-DATA STATE ESTIMATIOn FOR nEURAL nETWORKS WITH ADDITIVE TIME–VARYInG DELAYS

在线全文

学校读者我要写书评

暂无评论

Acta Mathematica Scientia 2019年第1期39卷 195-213页

作者： M.syed ALI n.GUnASEKARAn 曹进德 Department of Mathematics Thiruvalluvar University Research Center for Wind Energy Systems Kunsan National University School of Mathematics Southeast University

In this paper, we consider the problem of delay-dependent stability for state estimation of neural networks with two additive time–varying delay components via sampleddata control. By constructing a suitable Lyapunov–Krasovskii functional with triple and four integral terms and by using Jensen's inequality, a new delay-dependent stability criterion is derived in terms of linear matrix inequalities(LMIs) to ensure the asymptotic stability of the equilibrium point of the considered neural networks. Instead of the continuous measurement,the sampled measurement is used to estimate the neuron states, and a sampled-data estimator is constructed. Due to the delay-dependent method, a significant source of conservativeness that could be further reduced lies in the calculation of the time-derivative of the Lyapunov functional. The relationship between the time-varying delay and its upper bound is taken into account when estimating the upper bound of the derivative of Lyapunov functional. As a result, some less conservative stability criteria are established for systems with two successive delay components. Finally, numerical example is given to show the superiority of proposed method.

关键词： Lyapunov method linear matrix inequality state estimation sample-data control time-varying delays

Detection of SARS-CoV-2 Eta VOI among international travelers using COVIDSeq-nGS

在线全文

学校读者我要写书评

暂无评论

Asian Pacific Journal of Tropical Medicine 2022年第11期15卷 518-521页

作者： Mati Ur Rehman Rooh Ullah narmeen Arshad Muhammad Ammad Qurat Ul Ain Anam Razzak Muhammad Yousaf Shabana Perween syed Sajjad naqvi Tarique n.Hasan Pure Health Laboratory Mafraq HospitalAbu DhabiUnited Arab Emirates Ascencia Business School College de ParisFrance Pure Health Laboratory Mafraq HospitalAbu Dhabi

Rationale:SARS-CoV-2 has been identified as a highly infective and contagious viral *** SARS-CoV-2 pandemic has been spread worldwide and affected more than 210 ***,the fast spread of novel SARS-CoV-2 variants has been mostly attributed to international *** concerns:We are reporting the genomic evidence of SARSCoV-2 Eta VOI among two international *** travelers were males from nigeria aged 24 and 34 years and both were ***:The nasopharyngeal swab samples were in both travelers positive by real-time RT-PCR followed by ***:Paracetamol 3 times daily for 5 ***:Patient recovered completely within 10 days and discharged after 14 days of quarantine ***:This report highlights genomic variation of SARSCoV-2 among the *** managing the present health crisis,molecular identification of viral variants present in different geographical locations will be very helpful.

关键词： COVID-19 SARS-CoV-2 Eta VOC VOI

Structure inversion asymmetry enhanced electronic structure and electrical transport in 2D A3SnO(A=Ca,Sr,and Ba)antiperovskite monolayers

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 Research 2023年第1期16卷 1779-1791页

作者： syed Muhammad Alay-e-Abbas Ghulam Abbas Waqas Zulfiqar Muhammad Sajjad nirpendra Singh J.Andreas Larsson Applied Physics Division of Materials ScienceDepartment of Engineering Sciences and MathematicsLuleåUniversity of Technology97187 LuleåSweden Computational Materials Modeling Laboratory Department of PhysicsGovernment College UniversityFaisalabad 38040Pakistan Department of Energy Conversion and Storage Technical University of Denmark2800 Kgs.LyngbyDenmark Department of Physics Khalifa University of Science and TechnologyAbu Dhabi-127788United Arab Emirates Center for Catalysis and Separation(CeCaS) Khalifa University of Science and TechnologyAbu Dhabi-127788United Arab Emirates

Anti-perovskites A3SnO(A=Ca,Sr,and Ba)are an important class of materials due to the emergence of Dirac cones and tiny mass gaps in their band structures originating from an intricate interplay of crystal symmetry,spin–orbit coupling,and band *** provides an exciting playground for modulating their electronic properties in the two-dimensional(2D)***,we employ first-principles density functional theory(DFT)calculations by combining dispersion-corrected SCAn+rVV10 and mBJ functionals for a comprehensive side-by-side comparison of the structural,thermodynamic,dynamical,mechanical,electronic,and thermoelectric properties of bulk and monolayer(one unit cell thick)A3SnO *** results show that 2D monolayers derived from bulk A3SnO anti-perovskites are structurally and energetically ***,Rashba-type splitting in the electronic structure of Ca3SnO and Sr3SnO monolayers is observed owing to strong spin–orbit coupling and inversion *** the other hand,monolayer Ba3SnO exhibits Dirac cone at the high-symmetryΓpoint due to the domination of band *** on the predicted electronic transport properties,it is shown that inversion asymmetry plays an essential character such that the monolayers Ca3SnO and Sr3SnO outperform thermoelectric performance of their bulk counterparts.

关键词： electrical transport anti-perovskites low-dimensional materials electronic structure mechanical properties