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The crop Journal 2023年第1期11卷 166-176页

作者： Abhishek Gogna Jie Zhang Yong Jiang Albert W.Schulthess Yusheng Zhao Jochen c.Reif Leibniz Institute of Plant Genetics and crop Plant Research(IPK) 06466 Stadt SeelandGermany

To extend the contemporary understanding into the grain yield heterosis of wheat, the current study investigated the contribution of deleterious alleles in shaping mid-parent heterosis(MPH). These alleles occur at low frequency in the genome and are often missed by automated genotyping platforms like SNP arrays. The deleterious alleles herein were detected using a quantitative measurement of evolutionary conservation based on the phylogeny of wheat and investigations were made to:(1) assess the benefit of including deleterious alleles into MPH prediction models and(2) understand the genetic underpinnings of deleterious SNPs for grain yield MPH using contrasting crosses viz. elite × elite(Exp. 1) and elite × plant genetic resources(PGR;Exp. 2). In our study, we found a lower allele frequency of moderately deleterious alleles in elites compared to PGRs. This highlights the role of purifying selection for the development of elite wheat cultivars. It was shown that deleterious alleles are informative for MPH prediction models: modelling their additive-by-additive effects in Exp. 1 and dominance as well as associated digenic epistatic effects in Exp. 2 significantly boosts prediction accuracies of MPH. Furthermore,heterotic-quantitative trait loci's underlying MPH was investigated and their properties were contrasted in the two crosses. conclusively, it was proposed that incomplete dominance of deleterious alleles contributes to grain yield heterosis in elite crosses(Exp. 1).

关键词： Hybrid wheat Genomic evolutionary rate profiling Deleterious SNP Heterotic Quantitative trait loci

Amphibians and Reptiles of Luzon Island,V:The Herpetofauna of Angat Dam Watershed,Bulacan Province,Luzon Island,Philippines

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Asian Herpetological Research 2011年第4期2卷 177-198页

作者： David S.McLEOD cameron D.SILER Arvin c.DIESMOS Mae L.DIESMOS Vhon S.GARcIA Angela O.ARKONcEO Kelvin L.BALAQUIT charlene c.UY Mariden M.VILLASERAN Earle c.YARRA Rafe M.BROWN Natural History Museum and Biodiversity Research center Department of Ecology and Evolutionary BiologyUniversity of Kansas LawrenceKS 66045-7561USA Herpetology Section Zoology DivisionPhilippine National MuseumRizal ParkBurgos St.Ermita 1000ManilaPhilippines University of Santo Tomas Espana BoulevardSampaloc 1015ManilaPhilippines

We report amphibian and reptile distribution records based on recent biodiversity surveys conducted at the Angat Watershed Reservation, Bulacan Province, Luzon Island, Philippines. This watershed constitutes the principal water source for Manila, the Philippines＇ largest metropolitan area. As virtually nothing is known of the herpetological diversity of the immediate area and the surrounding Bulacan Province, all species recorded as part of our surveys constitute major geographical records and/or significant range extensions. Our data result in a total of 63 new records of amphibian （19 frogs） and reptile （22 lizards, 2 turtles, and 20 snakes） species for this protected area （and immediate vicinity） that serves as a watershed for the major metropolitan area of Manila and surrounding cities. Together with the few previous literature records, our new records bring the total number of amphibian and reptile species for Bulacan Province to 68. We discuss several strategies for future survey work （focusing on habitat type, seasonal variation, and elevational variability） that we anticipate will result in increased knowledge of diversity within the Angat Watershed Reserve. The impressive level of herpetological diversity within such a small area, so close to Metro Manila, emphasizes that the diversity and distribution patterns of amphibians and reptiles from Luzon are still poorly known and in need of further study.

关键词： amphibians Anagat Dam diversity Philippines reptiles

commentary on “Prevalence and evolution of drug resistance HIV-1 vari-ants in Henan, china”

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cell Research 2005年第Z1期15卷 850-851页

作者： Bruce L GILLIAM Robert R REDFIELD Richard Y ZHAO Robert c GALLO Institute of Human Virology University of Maryland Baltimore MD 21201 USA Institute of Human Virology University of Maryland Baltimore MD 21201 USA Department of Microbiology-Immunology University of Maryland School of Medicine Baltimore MD 21201 USA Institute of Human Virology University of Maryland Baltimore MD 21201 USA .Department of Pathology University of Maryland School of Medicine Baltimore MD 21201 USA

critical to the implementation and scale-up of successful antiretroviral therapy worldwide is an understanding of the effcacy, toxicitie and durability of antiretroviral regimens in the specific populations, which the... 详细信息

关键词： HIV commentary on Prevalence and evolution of drug resistance HIV-1 vari-ants in Henan

Bidirectional Erbium Doped Fiber Amplifiers

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High Technology Letters 1995年第1期1卷 66-70页

作者： Zhong, c. Peixuan, J. Ling, L. Peida, Y. Beijing Univ of Posts and Telecommunications Beijing China

Bidirectional EDFAs(Bi-EDFAs)featuring bidirectional signal input are *** and noise performances of Bi-EDFAs are analysed numerically and comparedwith that of other optical *** of Bi-EDFAs in fiber networks and otherf... 详细信息

关键词： Erbium doped fiber amplifiers ASE Bidirectional optical amplifiers

Meteorology today : :an introduction to weather,climate,and the environment / 6th ed.

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Meteorology today : :an introduction to weather,climate,and ...

RAMAN SPEcTROScOPIc STUDY ON PREDIcTION OF TREATMENT RESPONSE IN cERVIcAL cANcERS

2000年

作者： Ahrens c.Donald

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Journal of Innovative Optical Health Sciences 2013年第2期6卷 63-70页

作者： S.RUBINA M.S.VIDYASAGAR c.MURALI KRISHNA chilakapati Laboratory Advanced Centre for TreatmentResearch and Education in CancerTata Memorial Centre Kharghar 410210India Department of Radiotherapy and Oncology Shirdi Sai Baba cancer Hospital Kasturba Medical College Manipal UniversityManipal 576104India

concurrent chemoradiotherapy(ccRT)is the choice of treatment for locally adv anced cervical cancers;however,tumors exhibit diverse response to *** prediction of tumor response leads to individualizing treatment *** evaluation criteria in solid tumors(REcIST),the current modality of tumor response assessment,is often subject ive and carried out at the first visit after treatment,which is about four ***,there is a need for better predictive tool for *** spectroscopic techniques,sensitive to molecular alteration,are being pursued as potential diagnostic *** pilot study ains to explore the fiber-optic-based Raman spectroscopy approach in prediction of tumor response to ccRT,before taking up extensive in vivo *** vivo Raman spectra were acquired from biopsies collected from 11 normal(148 spectra),16 tumor(201 spectra)and 13 complete response(151 cR spectra),one partial response(8 PR spectra)and one nonresponder(8 NR spectra)*** was analyzed using principal component linear discriminant analysis(Pc-LDA)followed by leave-one-out cross-validation(LOO-cV).Findings suggest that normal tissues can be efficiently classified from both pre-and post-treated tumor biopsies,while there is an overlap between pre-and post-ccRT tumor *** of cR,PR and NR tissues were subjected to principal component analysis(PcA)and a tendency of classification was observed,corroborating previous ***,this study further supports the feasibility of Raman spectroscopy in prediction of tumor radioresponse and prospective noninvasive in vivo applications.

关键词： concurrent chemoradiotherapy tumor response principal component linear discriminant analysis principal component analysis response evaluation criteria in solid tumors

Evaluation of diameter dis-tribution of inside cavities of open cNTs by analyses of nitrogen cryo-adsorption isotherm

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chinese Science Bulletin 2001年第15期46卷 1317-1320页

作者： Yang, QH Li, F Hou, PX Liu, c Liu, M cheng, HM chinese Acad Sci Inst Met Res Shenyang 110015 Peoples R China

Precise evaluation of innerdiameter distribution of open carbon nanotubes (cNTs) is the basis of systematic investigation of physico-chemical processes occurring in nano-sized quasi-1-dimensional carbons. Due to the porosity characteristics and adsorption properties, this study evaluated the innerdiameter and its distribution of carbon nanotubes by analyses of nitrogen cryo-adsorption isotherms, and proved that the gas adsorption method is an effective method to characterize the inner cavity structure in comparison with that of electron microscopy observations and Raman measurements. The advantages of this method are as follows: Firstly, statistical information for innerdiameter distribution of open nanotubes can be obtained; Secondly, the method based on the adsorption process in inner cavities is of importance for investigation of other physico-chemical pro- cesses inside the cavities of carbon nanotubes. And finally, if combining with other characterization methods, complete structural information

关键词： carbon nanotubes (cNTs) innerdiameter distribution gas adsorption method adsorption isotherm.

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Business studies /

Business studies /

On a New Genus of Basal Neoceratopsian Dinosaur from the Early cretaceous of Gansu Province, china

丛书名： English for academic purposes series

1989年

作者： c.V.James.

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Acta Geologica Sinica(English Edition) 2005年第5期79卷 593-597页

作者： YOU Hailu LI Daqing JI Qiang Matthew c. LAMANNA Peter DODSON Institute of Geology Chinese Academy of Geological Sciences Beijing 100037 China Fossil Research and Development center of the Third Geology and Mineral Resources Exploration Academy of Gansu Province Lanzhou Gansu 730050 China Section of Vertebrate Paleontology Carnegie Museum of Natural History 4400 Forbes Avenue Pittsburgh PA 15213 USA Department of Animal Biology School of Veterinary Medicine University of Pennsylvania 3800 Spruce Street Philadelphia PA 19104 USA

A new genus and species of basal neoceratopsian dinosaur, Auroraceratops rugosus, is reported based on material from the Early cretaceous Xinminpu Group in the Gongpoquan Basin of Gansu Province, china. Auroraceratops is represented by a nearly complete skull and low jaws, and different greatly from all other neoceratopsians by its considerable breadth of the nasals, fungi form expansion of the dorsal end of the lacrimal, highly developed rugosity of the jugal, dentary and surangular, and inflated, striated premaxillary teeth. The finding of Auroraceratops adds diversity and helps elucidate the evolution of basal neoceratopsian dinosaurs.

关键词： Dinosauria Neoceratopsia Early cretaceous Xinminpu Group Gongpoquan Basin Gansu Province

Synthesis of single-walled carbon nanotubes by the vertical floating catalyst method

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chinese Science Bulletin 2002年第2期47卷 158-161页

作者： Zhu, HW Li, XS Lijie, c Xu, cL Liang, J Wu, DH Tsing Hua Univ Dept Mech Engn State Key Lab Automot Safety & Energy Beijing 100084 Peoples R China

The vertical floating catalyst method is first used to produce single-walled carbon nanotubes (SWNTs) continuously on a large scale by a newly developed technique and pyrolysis of n-hexane. Diameter distributions, micro-structure and purity of the SWNTs film, rope and web are measured by Raman spectroscopy and electron microscope. The results show that SWNTs product has a high degree of orientation, a wide distribution of diameters (0.7-2.0 nm) and high purity of > 80 %.

关键词： single-walled carbon nanotubes (SWNT) vertical floating catalyst method Raman spectroscopy.