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International Journal of Minerals,Metallurgy and Materials 2024年第9期31卷 2048-2061页

作者： Jirui Ma Xiaopeng Lu santosh.prasad sah.qianqian ch.n You Zhang Fuhui Wang Corrosion and Protection Center Northeastern UniversityShenyang110819China Faculty of Engineering Hokkaido UniversityHokkaido 060-8628Japan College of new Materials and chemical Engineering Beijing Institute of Petrochemical TechnologyBeijing 102617China

To enhance the long-term corrosion resistance of the plasma electrolytic oxidation(PEO)coating on the magnesium(Mg)alloy,an inorganic salt combined with corrosion inhibitors was used for posttreatment of the *** this study,the corrosion performance of PEO-coated AM50 Mg was significantly improved by loading sodium lauryl sulfonate(SDS)and sodium dodecyl benzene sulf-onate into Ba(nO_(3))_(2) post-sealing *** electron microscopy,X-ray photoelectron spectroscopy,X-ray diffraction,Fourier transform infrared spectrometer,and ultraviolet-visible analyses showed that the inhibitors enhanced the incorporation of BaO_(2) into PEO *** impedance showed that post-sealing in Ba(nO_(3))_(2)/SDS treatment enhanced corrosion resistance by three orders of *** total impedance value remained at 926Ω·cm^(2)after immersing in a 0.5wt%naCl solution for 768 h.A salt spray test for 40 days did not show any obvious region of corrosion,proving excellent post-sealing by Ba(nO_(3))_(2)/SDS *** corrosion resistance of the coating was enhanced through the synergistic effect of BaO2 pore sealing and SDS adsorption.

关键词： Mg plasma electrolytic oxidation posttreatment corrosion resistance

Rice Heat Tolerance Breeding: A Comprehensive Review and Forward Gaze

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Rice science 2024年第4期31卷 375-400,I0022页

作者： Ravindran Lalithambika VISAKH Sreekumar AnAnD Sukumaran nair ARYA Behera SASMITA Uday ch.nd JHA Rameswar prasad sah Radha BEEnA Department of Genetics and Plant Breeding College of AgricultureVellayaniKerala Agricultural UniversityThiruvananthapuramKerala 695522India Crop Improvement Division Indian Council of Agricultural Research-National Rice Research InstituteCuttackOdisha 7530006India Department of Plant Breeding and Genetics Indian Institute of Pulse ResearchKanpur 208024India Department of Plant Physiology College of AgricultureVellayaniKerala Agricultural UniversityThiruvananthapuramKerala 695522India

The yield potential of rice is seriously affected by heat stress due to climate ch.nge. Since rice is a staple food globally, it is imperative to develop heat-resistant rice varieties. Thus, a thorough understanding of the complex molecular mech.nisms underlying heat tolerance and the impact of high temperatures on various critical stages of the crop is needed. Adoption of both conventional and innovative breeding strategies offers a long-term advantage over other methods, such as agronomic practices, to counter heat stress. In this review, we summarize the effects of heat stress, regulatory pathways for heat tolerance, phenotyping strategies, and various breeding methods available for developing heat-tolerant rice. We offer perspectives and knowledge to guide future research endeavors aimed at enhancing the ability of rice to withstand heat stress and ultimately benefit humanity.

关键词： genetic mech.nism high-temperature stress molecular breeding genomics selection

next Generation nutrition: Genomic and Molecular Breeding Innovations for Iron and Zinc Biofortification in Rice

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Rice science 2024年第5期31卷 526-544,I0029,I0030页

作者： Kunhikrishnan Hemalatha DHAnYALAKSHMI Reshma MOHAn Sasmita BEHERA Uday ch.nd JHA Debashis MOHARAnA Ahalya BEHERA Sini THOMAS Preman Rejitha SOUMYA Rameswar prasad sah Radha BEEnA Department of Plant Physiology College of AgriculturePadannakkadKerala Agricultural UniversityKerala 671314India Department of Plant Physiology College of AgricultureVellayaniKerala Agricultural UniversityKerala 695522India Crop Improvement Division India Council of Agricultural Research-National Rice Research InstituteOdisha 7530006India Department of Plant Breeding and Genetics Indian Institute of Pulse ResearchKanpur 208024India Department of Plant Physiology College of AgricultureKumarakomKerala Agricultural UniversityKerala 686563India

Global efforts to address malnutrition and hidden hunger, particularly prevalent in low- and middle-income countries, have intensified, with a focus on enhancing the nutritional content of staple crops like rice. Despite serving as a staple for over half of the world's population, rice falls short in meeting daily nutritional requirements, especially for iron(Fe) and zinc(Zn). Genetic resources, such as wild rice species and specific rice varieties, offer promising avenues for enhancing Fe and Zn content. Additionally, molecular breeding approaches have identified key genes and loci associated with Fe and Zn accumulation in rice grains. This review explores the genetic resources and molecular mech.nisms underlying Fe and Zn accumulation in rice grains. The functional genomics involved in Fe uptake, transport, and distribution in rice plants have revealed key genes such as OsFRO1, OsIRT1, and OsnAS3. Similarly, genes associated with Zn uptake and translocation, including OsZIP11 and OsnRAMP1, have been identified. Transgenic approaches, leveraging transporter gene families and genome editing technologies, offer promising avenues for enhancing Fe and Zn content in rice grains. Moreover, strategies for reducing phytic acid(PA) content, a known inhibitor of mineral bioavailability, have been explored, including the identification of low-PA mutants and natural variants. The integration of genomic information, including whole-genome resequencing and pan-genome analyses, provides valuable insights into the genetic basis of micronutrient traits and facilitates targeted breeding efforts. Functional genomics studies have elucidated the molecular mech.nisms underlying Fe uptake and translocation in rice. Furthermore, transgenic and genome editing techniques have shown promise in enhancing Fe and Zn content in rice grains through the manipulation of key transporter genes. Overall, the integration of multi-omics approaches holds significant promise for addressing global malnutri

关键词： biofortification grain quality iron phytic acid rice zinc

Comprehensive analysis of uncertainty quantification for the^(58)ni(n,p)^(58)Co reaction cross section

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ch.nese Physics C 2024年第9期48卷 170-175页

作者： Mahesh choudhary Aman Sharma namrata Singh Mahima Upadhyay Punit Dubey A.Gandhi Akash Hingu G Mishra Sukanya De L.S.Danu Ajay Kumar R.G.Thomas Saurav Sood Sajin prasad S.Mukherjee I.n.Ruskov Yu.n.Kopatch A.Kumar Department of Physics Banaras Hindu UniversityVaranasi 221005India Horia Hulubei national Institute of Physics and nuclear Engineering-IFIn-HH Bucharest 077125Romania Department of Physics The Maharaja Sayajirao University of BarodaVadodara 390002India nuclear Physics Division Bhabha Atomic Research CentreMumbai 400085India Health Physics Division Bhabha Atomic Research CentreMumbai 400085India Department of Electrical Power Engineering Brno University of TechnologyBrno 61600Czech Republic Institute for nuclear Research and nuclear Energy Bulgarian Academy of SciencesSofia 1784Bulgaria Joint Institute for nuclear Research(JInR) Dubna 141980Russia

In this study,we measured the^(58)ni(n,p)^(58)Co reaction cross section with neutron energies of 1.06,1.86,and 2.85 *** cross section was measured using neutron activation techniques andγ-ray spectroscopy,and it was compared with cross section data available in the ***,we calculated the covariance matrix of the measured cross section for the aforementioned nuclear *** uncertainties of the theoretical calculation for^(58)ni(n,p)^(58)Co reaction cross section were calculated via Monte Carlo *** this study,we used uncertainties in the optical model and level density parameters to calculate uncertainties in the theoretical cross *** theoretical calculations were performed by using *** this study,we aim to analyze the effect of uncertainties of the nuclear model input as well as different experimental variables used to obtain the values of reaction cross section.

关键词： ^(58)ni(n p)^(58)Co reaction γ-ray spectroscopy uncertainty quantification of cross section covariance analysis

从H1n1血凝素序列提取的沙门氏菌传递的COBRA-HA1抗原对甲型流感亚型产生广谱保护作用

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Engineering 2024年第1期32卷 41-56页

作者： Ram prasad Aganja Amal Senevirathne ch.ndran Sivasankar John Hwa Lee Department of Veterinary Public Health College of Veterinary MedicineJeonbuk National UniversityIksan 54596Republic of Korea Department of Preventive Medicine College of Veterinary MedicineChungnam National UniversityDaejeon 34134Republic of Korea

A universal vaccine is in high demand to address the uncertainties of antigenic drift and the reduced effectiveness of current influenza *** this study,a strategy called computationally optimized broadly reactive antigen(COBRA)was used to generate a consensus sequence of the hemagglutinin globular head portion(HA1)of influenza virus samples collected from 1918 to 2021 to trace evolutionary ch.nges and incorporate them into the designed *** carrying different HA1regions were delivered into eukaryotic cells by Salmonella-mediated bactofection using a Semliki Forest virus RnA-dependent RnApolymerase(RdRp)-based eukaryotic expression system,*** protein expression was confirmed by Western blot and immunofluorescence *** immunized with the designed constructs produced a humoral response,with a significant increase in immunoglobulin G(IgG)levels,and a cell-mediated immune response,including a 1.5-fold increase in CD4^(+) and CD8^(+)T ***,constructs #1 and #5 increased the production of interferon-γ(IFn-γ)producing CD4^(+)and CD8^(+)T cells,skewing the response toward the T helper type 1 cell(Th1)***,interleukin-4(IL-4)-producing T cells were upregulated *** efficacy was demonstrated,with up to 4-fold higher production of neutralizing antibodies and a hemagglutination inhibition titer>40 against the selected viral *** designed constructs conferred a broadly protective immune response,resulting in a notable reduction in viral titer and minimal inflammation in the lungs of mice challenged with the influenza A/PR8/34,A/Brisbane/59/2007,A/California/07/2009,KBPV VR-92,and nCCP 43021 *** discovery revolutionizes influenza vaccine design and delivery;Salmonella-mediated COBRA-HA1 is a highly effective in vivo antigen presentation *** approach can effectively combat seasonal H1n1 influenza strains and potential pandemic outbreaks.

关键词： COBRA Influenza A Salmonella Vaccine Broad spectral protection

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尼泊尔桑可西河流域新格地子流域滑坡评价

Journal of Resources and Ecology 2024年第2期15卷 431-438页

作者： BASnET Bhuwan JOSHI Rajeev SHARMA Ram prasad SUBEDI Rajan 特里布万大学林业研究所(博卡拉校区) 尼泊尔博卡拉33700 尼泊尔农林大学自然资源管理学院林学系尼泊尔卡塔里56310

山体滑坡是尼泊尔山区的主要灾害,主要是由于其脆弱的地貌、强烈的降雨、不当的土地管理和在修建山区道路过程中没有采取必要的稳定措施所导致的。由于频繁的山体滑坡,下游地区人类的生命财产遭受了巨大损失,并导致生态系统生产力和功... 详细信息

山体滑坡是尼泊尔山区的主要灾害,主要是由于其脆弱的地貌、强烈的降雨、不当的土地管理和在修建山区道路过程中没有采取必要的稳定措施所导致的。由于频繁的山体滑坡,下游地区人类的生命财产遭受了巨大损失,并导致生态系统生产力和功能下降,河道泥沙淤积。土地利用与土地覆被、地形、道路、排水、地质环境和降雨等多种空间因素与滑坡的发生紧密相关,并决定了该地区滑坡的易感性。了解滑坡现象及其引发的相关因素,对于采取适当的预防、控制和恢复措施至关重要。本研究在尼泊尔桑科西河流域的新格地子流域进行,旨在了解滑坡危害、引发的相关因素以及为最大限度地减少可能的危害而采取的最佳预防策略。滑坡评估是通过使用时序谷歌影像和实地调查,对滑坡体进行识别和数字化来进行的。利用GIS软件对滑坡危险性进行评估,编制影响因子图,并对现场观测数据进行分析的基础上,计算了滑坡的规模。此外,在相关家庭的问卷调查(n=60)中,进行目的性抽样,探讨人们对山体滑坡、对生计资产的主要影响因素的看法。并采用Friedman非参数检验评估滑坡对当地人感知的最主要影响因素。根据现场调查,在研究区域的不同位置共调查了46处滑坡体,滑坡总面积为4.77km^(2)。通过使用Friedman检验的比较矩阵分析,本研究确定了滑坡发生的主要原因是农村道路、施工、边坡因素、降雨和土地利用与土地覆被。距离道路200-500 m造成最高比率的滑坡灾害,东南方向坡度30°-45°的山体对滑坡的易感性最高。与其他土地利用相比,因为在林内松软地区修建道路,茂密的森林更易受到山体滑坡的影响。比较道路建设前后滑坡的影响,约80%的受访者认为对滑坡有重要影响。

关键词：滑坡灾害滑坡评估滑坡因素分析

Study of Structural, Optical, Electrical and Dielectric Properties of Gd-Doped ZnO Composites Synthesized by Solid State Reaction Method

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Open Journal of Composite Materials 2024年第2期14卷 91-108页

作者： santosh Kumar Kundara Kanhaiya chawla Dinesh Kumar Yadav chhagan Lal Balram Tripathi narendra Jakhar Department of Physics University of Rajasthan Jaipur India Sw. P.n.K.S. Government PG College Dausa India Government PG College Pratapgarh India S.S. Jain Subodh PG (Autonomous) College Jaipur India

In this manuscript, we are reporting structural, bonding, optical, dielectric, and electrical properties of Gd-doped ZnO composite samples (Zn1−xGdxO, x = 0, 0.05, 0.10) prepared by solid-state reaction method. XRD spectra confirm the wurtzite hexagonal phase with a grain size distribution of 42 - 47 nm. The FT-IR spectra confirm bonding behavior like Zn-O, O=C=O, and O-H stretch.ng modes. FESEM micrographs show that the grains of crystallites possess nearly spherical morphology. Optical absorption spectra confirm that the optical band gap decreases systematically from 3.19 eV to 3.15 eV for x = 0.0 to x = 0.10 samples. For all samples, PL spectra exhibited near-band emission, blue emission, and green emission peaks. The dielectric constant decreases as the applied frequency increases. Hall effect results show that with increasing doping concentration of Gd, mobility and resistivity increase while bulk concentration decreases. Current-Voltage study shows that current increases when temperature is increased. Rare earth-doped ZnO is potential material used for optoelectronics and spintronics device applications. Properties of Gd-doped ZnO are studied by various research groups, but dielectric studies are limitedly reported. Therefore, the present research work aims to study the ch.nge of electrical, optical, and dielectric properties of Gd-doped ZnO for device applications.

关键词： ZnO:Gd Composites Optical Band Gap Green Emission Dielectric Constant

Does offering only the spherical contact lens trial to the low astigmats mislead the practitioners?

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International Journal of Ophthalmology(English edition) 2021年第8期14卷 1281-1284页

作者： Monica chaudhry Surendra prasad sah Indra prasad Sharma Soujanya Mondal Department of Optometry and Vision Science Amity UniversityHaryana 122003India School of Health Sciences Ansal UniversityGurugramHaryana 122003India Himalaya Eye Hospital GharinpatanPokhara 00977Nepal Gyalyum Kesang choeden Wangchuck national Eye Center JDW National Referral HospitalThimphu 11001Bhutan Optsight Eye Care HCB RoadAmulapattiNear MFCSivasagarAssam 785640India

AIM:To compare the visual acuity(VA),comfort,and patient preference in a soft toric contact lens(TCL)versus soft spherical contact lens(SCL)in low astigmatic subjects during the contact lens(CL)***:This subject-masked,block randomized,2×2 crossover study recruited 40 neophyte subjects(80 eyes)aged 18 to 33 y with astigmatism in the range of 0.75-1.25 D with or without spherical power from-6.00 D to+6.00 *** participants were scheduled for two days CL trial and were fitted with the best-fit SCL and *** 4 h of wear,they were assessed objectively for high contrast VA and subjective vision,comfort,and ***:The responses of 36 subjects(response rate 90%)with a mean age of 23.02±2.97 y(range 18 to 33 y)were ***-line improvement of monocular VA in the logMAR chart was reported to TCL as compared to SCL(-0.044±0.06 vs 0.04±0.03 logMAR,P=0.01)but the binocular vision remained similar(-0.12±0.07 vs-0.14±0.04 logMAR,P=0.38).Subjects felt a noticeable difference in clarity when shifted to TCL as compared to the *** satisfaction with vision(vision quality)was significantly better with TCL(P=0.03).The fatigue with TCL was graded less at 2.5±0.6,compared to SCL at 4.6±1.3(P=0.04).Thirty-three participants(91.6%)preferred to use contact lens of which 26 participants(79%)preferred ***:The findings suggest that VA and comfort are better with TCL as compared to SCL which is only observed if the patient was offered both offering SCL with spherical equivalent power alone as the first option can mislead the practitioner;TCL trial should be the first choice of the lens in low-to-moderate astigmatism.

关键词： astigmatism comfort spherical contact lens toric contact lens visual acuity

Database Search Behaviors: Insight from a Survey of Information Retrieval Practices

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Intelligent Information Management 2024年第5期16卷 195-218页

作者： Babita Trivedi Brijender Dahiya Anjali Maan Rajesh Giri Vinod prasad Department of Physics Swami Shraddhanand College University of Delhi Delhi India Department of Physics Pt.N.R.S.G.C. Rohtak Maharshi Dayanand University Rohtak India Department of Physics Rajdhani College University of Delhi Delhi India

This study examines the database search behaviors of individuals, focusing on gender differences and the impact of planning habits on information retrieval. Data were collected from a survey of 198 respondents, categorized by their discipline, schooling background, internet usage, and information retrieval preferences. Key findings indicate that females are more likely to plan their searches in advance and prefer structured methods of information retrieval, such as using library portals and leading university websites. Males, however, tend to use web search engines and self-archiving methods more frequently. This analysis provides valuable insights for educational institutions and libraries to optimize their resources and services based on user behavior patterns.

关键词： Information Retrieval Database Search User Behavior Patterns

Tuberculosis in kidney transplant candidates and recipients

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World Journal of Transplantation 2024年第3期14卷 59-69页

作者： Pallavi prasad Sourabh Sharma Subashri Mohanasundaram Anupam Agarwal Himanshu Verma Department of nephrology Vardhman Mahavir Medical College and Safdarjung HospitalNew Delhi 110029DelhiIndia Department of nephrology Prashanth HospitalChennai 600042Tamil NāduIndia

Tuberculosis(TB)is the leading cause of infectious mortality and morbidity in the world,second only to coronavirus disease *** with chronic kidney disease and kidney transplant recipients are at a higher risk of developing TB than the general *** TB is difficult to diagnose in this population due to close *** transplant candidates should be screened for latent TB infection and given TB *** who develop active TB pre-or post-trans-plantation should receive multidrug combination therapy of antitubercular therapy for the recommended duration with optimal dose modification as per glomerular filtration rate.

关键词： Tuberculosis Latent Antitubercular therapy Kidney transplantation Donor Interferon-gamma release assays Tuberculin Rifampicin Isoniazid