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Genetic dissection of maternal influence on in vivo haploid induction in maize

The Crop Journal 2020年第2期8卷 287-298页

作者： Sudha K.nair Vijay Chaikam Manje Gowda Vemuri Hindu Albrecht E.Melchinger Prasanna M.Boddupalli International Maize and Wheat Improvement Center(CIMMYT) ICRISAT CampusPatancheruGreater Hyderabad 502324India International Maize and Wheat Improvement Center(CIMMYT) ICRAF CampusUN AvenueGigiriP.O.Box 1041-00621NairobiKenya Institute of Plant Breeding Seed Science and Population GeneticsUniversity of HohenheimD-70593 StuttgartGermany

In vivo haploid induction based on maternal haploid inducers is the first step in deriving completely homozygous maize doubled haploid(dH) lines. Haploid induction rate(HIR) is influenced by both pollen parent inducing haploidy and the maternal source germplasm used in induction crosses. This study was aimed at analyzing the influence of source germplasm on HIR using 671 tropical inbred lines organized in two association mapping panels. These two association mapping panels(AMP1 and AMP2) were crossed to two different Tropically Adapted Inducer Lines(TAILs). For HIR assessment, seeds from induction crosses were planted in the field and ploidy status of each surviving plant was assessed using a gold standard classification based on visual differences between the haploid and diploid plants. The analysis revealed significant variation for HIR and led to identification of several tropical inbred lines that respond very positively to haploid induction. Use of HIR data in a genome wide association study(GWAS) led to identification of twenty-seven and two SNPs that were significantly associated with HIR in AMP1 and AMP2,respectively. Meta-analysis of AMP1 and AMP2 GWAS led to identification of 52 SNPs with significant effect on HIR across both studies. Genome-wide prediction revealed moderate to high prediction accuracy within AMPs using random SNPs. Inclusion of the SNPs detected in GWAS into the prediction model led to improvement in prediction accuracy. Overall, the study revealed that the maternal influence on HIR is controlled by a few moderate and many small effect QTL.

关键词： planted prediction vivo

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质量工程试验的数据分析(上)

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数理统计与管理 1991年第2期10卷 43-47页

作者： V.N.nair.d.Pregibon 汪仁官

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质量工程试验的数据分析(下)

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数理统计与管理 1991年第3期10卷 46-50页

作者： V.N.nair.d.Pregibon 汪仁官

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Fabrication of opaque and transparent 3d structures using a single material via twophoton polymerisation lithography

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Light(Advanced Manufacturing) 2023年第3期4卷 243-250页

作者： Parvathi nair Suseela nair Chengfeng Pan Hao Wang deepshikha Arora Qing Yang Steve Wu M.A.Rahman Jinghua Teng Joel K.W.Yang Institute of Materials Research and Engineering(IMRE) Agency for ScienceTechnology and Research(A*STAR)#08-03 Innovis2 Fusionopolis Way138634Singapore Singapore University of Technology and design 8 Somapah RoadSingapore 487372

Two-photon polymerisation lithography enables the three-dimensional(3d)-printing of high-resolution micron-and nano-scale *** that are 3d-printed using proprietary resins are transparent and are suitable as optical ***,achieving a mix of opaque and transparent structures in a single optical component is challenging and requires multiple material systems or the manual introduction of ink after *** this study,we investigated an overexposure printing process for laser decomposition,which typically produces uncontrollable and random‘burnt’***,we present a printing strategy to control this decomposition process,realising the on-demand printing of opaque or transparent structures in a single lithographic step using a single *** this method,opaque structures can be printed with a minimum feature size of approximately 10μm,which exhibitd this process to print an opaque aperture integrated with a transparent lens to demonstrate an improved imaging contrast.

关键词： 3d printing Two-photon polymerisation lithography Optically opaque Laser decomposition Lens imaging contrast

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IMPLICIT NONLINEAR NORMAL MOdE INITIALIZATION:A MULTIGRId APPROACH

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Acta meteorologica Sinica 1993年第1期7卷 19-30页

作者： d.R.C.nair B.Chakravarty P.Niyogi dept.of Physics and Meteorology Indian Institute of TechnologyKharagpur 721 302India dept.of Mathematics Indian Institute of TechnologyKharagpur 721 302India

The implicit nonlinear normal mode initialization (INMI) is applied to a tropical limited area shallow water model in spherical *** boundary condition for the INMI scheme is based on the boundary formulation of the *** INMI scheme is found to be very efficient in suppressing spurious gravity wave oscillation and providing a well balanced initial data set for the *** INMI scheme involves solving a number of elliptic type equations with varying *** hence an efficient numerical technique is required for solving such *** order to make INMI computationally more attractive,we are employing the multigrid method for solving all the elliptic type equations in the INMI *** numerical procedures for the development of such multigrid solvers are briefly described.

关键词： limited-area shallow water model implicit normal mode initialization(INMI) multigrid approach elliptic type equations

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基于同步量测全尺度能量的配电网高阻故障动态检测方法

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电网技术 2020年第8期44卷 3073-3080页

作者：刘洋赵艳雷 Nirmal nair 姚维强山东理工大学电气与电子工程学院山东省淄博市255049 奥克兰大学电气、计算机与软件工程学院新西兰奥克兰市1023 国网上海市电力公司电力科学研究院上海市虹口区200437

高阻故障(high impedance fault,HIF)可能造成重大经济损失、对人身安全构成威胁,因此HIF检测对配电网来说比较重要,而微型相量测量单元在配电网中的使用为配电网HIF动态检测提供有利条件。文章针对配电网HIF检测问题,提出一种基于同步... 详细信息

高阻故障(high impedance fault,HIF)可能造成重大经济损失、对人身安全构成威胁,因此HIF检测对配电网来说比较重要,而微型相量测量单元在配电网中的使用为配电网HIF动态检测提供有利条件。文章针对配电网HIF检测问题,提出一种基于同步全尺度能量的配电网高阻故障动态检测方法。检测包括2个阶段:第一阶段使用克尔内克积和变分模态分解将工频电流信号分解为多个固有模态,然后采用Teager-Kaiser能量算子计算所有尺度能量;第二阶段使用具有复合指标的改进主元分析方法对第一阶段获得的尺度能量矩阵进行检测,最后通过判别标准实现对HIF的识别。仿真和实例试验表明,该算法能够准确检测出HIF,对过渡阻抗、噪声均具有鲁棒性。

关键词：故障检测配电网变分模态分解同步测量主元分析

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Role of cardiovascular imaging in selection of donor hearts

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World Journal of Transplantation 2015年第4期5卷 348-353页

作者： Nandini nair Enrique Gongora division of Cardiology Texas Tech Health Sciences Center Memorial Cardiac and Vascular Institute

AIM:To perform a systematic review of literature on use of cardiovascular imaging in assessment of donor ***: A systematic search of current literature from January 1965 to August 2015 was performed using Pub Med and Google Scholar to investigate the different imaging modalities used to assess donor ***: Recent literature still estimates only a 32% utilization of available donor hearts in the United States. Most common imaging modality used is transthoracic echocardiography. Use of advanced imaging modalities such as 3d echocardiography, cardiac computer tomography and cardiac magnetic resonance to evaluate donor hearts is not reported in literature. This review attempts to highlight the relevant imaging modalities that can be used to assess cardiac function in a time-efficient manner. The algorithm suggested in this review would hopefully pave the way to standardized protocols that can be adopted by organ procuring organizations to increase the donor ***: Use of advanced imaging techniques for a thorough assessment of organs will likely increase the donor pool.

关键词： donor heart utilization Echocardiography Cardiovascular imaging Cardiac magnetic resonance donor heart selection Cardiac computed tomography

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Kinetics of the Oxidation of Benzhydrols with Permanganate under Phase Transfer Catalysis in Organic Solvents

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Modern Research in Catalysis 2013年第2期2卷 35-38页

作者： Koottil Muhammad Basheer Joy Joseph Thengumthanam d. R. nair department of Chemistry Farook College Feroke India department of Chemistry St. Joseph’s College Devagiri India School of Chemical Sciences Payyanur Campus Kannur University Payyanur India

Kinetic studies of the oxidation of benzhydrol and some of its para-substituted derivatives using phase transferred permanganate in organic solvents that are immiscible with water have been carried out. The products of oxidation were the corresponding benzophenones. Kinetically first order dependence on the concentrations of substrate as well as the oxidant has been observed. The reaction rate was found to decrease with an increase in the dielectric constant of the organic solvent employed. The electronic effects of the substituents were found to be interesting. Both electron withdrawing and electron releasing groups at the para position of benzhydrol increased rate of the oxidation. The effects of different phase transfer catalysts (PTC) were also compared. The activation parameters have been evaluated and a mechanism consistent with the kinetic results has been proposed.

关键词： Phase Transfer Catalysis Kinetics Oxidation Benzhydrols Permanganate

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Features of hepatocellular carcinoma in Hispanics differ from African Americans and non-Hispanic Whites

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World Journal of Hepatology 2017年第7期9卷 391-400页

作者： Neeta K Venepalli Mary V Modayil Stephanie A Berg Tad d nair Mayur Parepally Priyanka Rajaram Ron C Gaba James T Bui Yue Huang Scott J Cotler department of Medicine Section of Hematology/OncologyUniversity of Illinois at Chicago Applied Research and Evaluation Services Department of Evaluation and AnalyticsPrimary Health CareAlberta Health Services department of Medicine Division Hematology OncologyLoyola University Medical Center department of Radiology Section of Interventional RadiologyUniversity of Illinois at Chicago department of Medicine Division of HepatologyLoyola University Medical Center

AIM To compare features of hepatocellular carcinoma(HCC) in Hispanics to those of African Americans and *** Patients treated for HCC at an urban tertiary medical center from 2005 to 2011 were identified from a tumor registry. data were collected retrospectively, including demographics, comorbidities, liver disease characteristics, tumor parameters, treatment, and survival(OS) outcomes. OS analyses were performed using Kaplan-Meier *** One hundred and ninety-five patients with HCC were identified: 80.5% were male, and 22% were age 65 or older. Mean age at HCC diagnosis was 59.7 ± 9.8 years. Sixty-one point five percent of patients had Medicare or Medicaid; 4.1% were uninsured. Compared to African American(31.2%) and White(46.2%) patients, Hispanic patients(22.6%) were more likely to have diabetes(P = 0.0019), hyperlipidemia(P = 0.0001), nonalcoholic steatohepatitis(NASH)(P = 0.0021), end stage renal disease(P = 0.0057), and less likely to have hepatitis C virus(P d to African Americans, Hispanics were more likely to meet criteria for metabolic syndrome(P = 0.0491), had higher median MELd scores(P = 0.0159), ascites(P = 0.008), and encephalopathy(P = 0.0087). Hispanic patients with HCC had shorter OS than the other racial groups(P = 0.020), despite similarities in HCC parameters and treatment. CONCLUSION In conclusion, Hispanic patients with HCC have higher incidence of modifiable metabolic risk factors including NASH, and shorter OS than African American and White patients.

关键词： Hepatocellular carcinoma Epidemiology Treatment pattern Survival Hispanics

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3d printed fiber sockets for plug and play micro-optics

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International Journal of Extreme Manufacturing 2021年第1期3卷 122-129页

作者： Parvathi S nair Jonathan Trisno Hongtao Wang Joel K W Yang Singapore University of Technology and design 8 Somapah Road487372Singapore Institute of Materials Research and Engineering(IMRE) A^(∗)STAR138634Singapore

Integrating micro-optical components at the end facet of an optical fiber enables compact optics to shape the output beam(***,focusing,and coupling to free space elements or photonic integrated circuits).However,the scalability of this approach is a longstanding challenge as these components must be aligned onto individual fiber *** this paper,we propose a socket that enables easy slotting of fibers,self-alignment,and coupling onto micro-optical *** integrated socket can be detached from the substrate upon fiber insertion to create a stand-alone optical *** is done using nanoscale 3d printing via two-photon polymerization lithography onto glass substrates,which allows multiple sockets to be patterned in a single *** investigated variations in socket design and evaluated the performance of optical elements for telecom *** obtained an alignment accuracy of∼3.5μ*** socket designs can be customized for high efficiency chip to fiber coupling and extended to other spectral ranges for free-form optics.

关键词： integrated socket alignment fiber slotting fiber connector two-photon polymerization lithography

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