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Insights into the effect of a Natural Arsenate Dose on Growth,Nodulation and Redox Metabolism of Soybean Plants

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Pedosphere 2019年第4期29卷 527-533页

作者： eliana BIANUCCI Ana FURLAN Luis e.HeRNáNDeZ Stella CASTRO Instituto de Investigaciones Agrobiotecnológicas INIAB CONICET-UNRC Facultad de Ciencias ExactasFísico-Químicas y Naturales Universidad Nacional de Río Cuarto Laboratorio de Fisiología Vegetal Departamento de BiologíaUniversidad Autónoma de Madrid

Dear editor, Arsenic (As) is a harmful metalloid that occurs in soil and water;its concentration varies considerably among geographic regions, with groundwater being the principal source of human contamination (Smedley and Kinniburgh, 2002). Besides the direct contamination effect of drinking water that contains high As concentration, human poisoning may also occur after ingestion of contaminated food.

关键词： Natural Arsenate Soybean Plants Redox Metabolism

Flashing light in sponges through their siliceous fiber network:A new strategy of “neuronal transmission” in animals

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Chinese Science Bulletin 2012年第25期57卷 3300-3311页

作者： WANG XiaoHong FAN XingTao SCHRODeR Heinz C MULLeR Werner e G National Research Center for Geoanalysis Chinese Academy of Geological SciencesBeijing 100037China eRC Advanced Grant Research Group at the Institute for Physiological Chemistry University Medical Center of the Johannes GutenbergUniversityMainz D-55099Germany

Sponges(phylum Porifera) represent a successful animal taxon that evolved prior to the ediacaran-Cambrian boundary(542 million years ago).They have developed an almost complete array of cell-and tissue-based interaction systems necessary for the establishment of a functional,multicellular ***,a network of neurons,one cell/tissue-communication system is missing in *** fact is puzzling and enigmatic,because these animals possess receptors known to be involved in the nervous system in evolutionary younger animal *** an example,the metabotropic glutamate/GABA-like receptor has been identified and cloned by ***,we have identified a novel light transmission/light responsive system in sponges that is based on their skeletal elements,the siliceous glass fibers,termed *** classes of sponges,the Hexactinellida and the Demospongiae,possess a siliceous skeleton that is composed of *** the large spicules from hexactinellid sponges(>5 cm) revealed that these spicules are effective light-collecting optical *** we can report that the demosponge,Suberites domuncula,has a biosensor system consisting of the(organic) light producing luciferase and the(inorganic) light transducing silica *** light transmission features of these smaller spicules(200 μm) has been demonstrated and the ability of the sponge tissue to generate light had been *** for a luciferase gene in *** was *** the next step,we searched for a protein potentially involved in light *** a protein was identified,cloned and recombinantly expressed from *** protein sequence displays two domains characteristic of a cryptochrome,the N-terminal photolyase-related region and the C-terminal FAD-binding *** experimental data indicate that sponges may employ a network of luciferase-like proteins,a spicular system and a cryptochrome as the light source,optical waveguide and photosensor,***

关键词：海绵组织动物类群光纤网络硅质神经传导闪烁荧光素酶基因蛋白质序列

Comment on “The late swing and early stance of sprinting are most hazardous for hamstring injuries” by Liu et al.

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Journal of Sport and Health Science 2017年第2期6卷 137-138页

作者： Bing Yu Hui Liu William e.Garrett Center for Human Movement Science The University of North Carolina at Chapel Hill Biomechanics Laboratory Beijing Sport University Duke Sports Medicine Center Duke University

We have carefully read the description of the proposed mechanisms of hamstring muscle strain injury by Liu et al.1and noticed that they suggest that hamstring strain injuries may be associated with extensive muscle force and occur during the early stance phase of sprinting when the hamstrings are thought to work *** did not find any evidence in our extensive literature review to support this

关键词：早期后期摆动受伤短跑危险肌肉力量文献综述

effect of sulfur doping on the dielectric properties of Sb_(2)Se_(3) system

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Journal of Advanced Dielectrics 2019年第1期9卷 1-5页

作者： Ragab Mahani e.A.el-Sayady Microwave Physics and Dielectrics Department National Research Centre 33 EL Bohouth St.(Former EL Tahrir St.)GizaP.O.12622Egypt Solid State Physics Department National Research Centre 33 EL Bohouth St.(Former EL Tahrir St.)GizaP.O.12622Egypt

In this paper,we report the effect of sulfur doping on the electrical and dielectric properties of semiconducting Sb_(2)Se_(2)S over wide ranges of temperatures(298–473 K)and frequencies(42–10^(6) Hz).Sb_(2)Se_(2)S system has been prepared by the direct fusion and cooling cycle of a mixture of the constituent elements,in stoichiometric ratio and purity 99.999%,in vacuum-sealed silica tubes.X-ray analysis showed a decrease in the cell parameters a,b and c upon doping with ***,the pure and doped Sb_(2)Se_(3) showed the single orthorhombic phase *** permittivity of Sb_(2)Se_(2)S showed a decrease with increasing frequency due to a decrease in the average bond ***,ac conductivity increased with the frequency increase,obeying the Jonscher’s universal dynamic *** conductivity temperature dependence is well described by the correlated barrier hopping *** activation energy calculated from DC conductivity is found at higher value(0.79 eV)as compared to that reported in the literature for other antimony selenide ***,a new Sb_(2)Se_(2)S compound is suggested which may be useful for electronic devices.

关键词： Antimony selenide permittivity frequency

PCA-based 3D Shape Reconstruction of Human Foot Using Multiple Viewpoint Cameras

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International Journal of Automation and computing 2008年第3期5卷 217-225页

作者： edmée Amstutz Tomoaki Teshima Makoto Kimura Masaaki Mochimaru Hideo Saito Graduate School of Science and Technology Keio University Digital Human Research Center National Institute of Advanced Industrial Science and Technology(AIST)

This paper describes a multiple camera-based method to reconstruct the 3D shape of a human foot. From a foot database, an initial 3D model of the foot represented by a cloud of points is built. The shape parameters, which can characterize more than 92% of a foot, are defined by using the principal component analysis method. Then, using ＂active shape models＂, the initial 3D model is adapted to the real foot captured in multiple images by applying some constraints （edge points＇ distance and color variance）. We insist here on the experiment part where we demonstrate the efficiency of the proposed method on a plastic foot model, and also on real human feet with various shapes. We propose and compare different ways of texturing the foot which is needed for reconstruction. We present an experiment performed on the plastic foot model and on human feet and propose two different ways to improve the final 3D shapers accuracy according to the previous experiments＇ results. The first improvement proposed is the densification of the cloud of points used to represent the initial model and the foot database. The second improvement concerns the projected patterns used to texture the foot. We conclude by showing the obtained results for a human foot with the average computed shape error being only 1.06 mm.

关键词： Shape measurement 3D reconstruction from multiview cameras principal component analysis

The crystal structure of fibroblast growth factor 18 （FGF18）

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Protein & Cell 2014年第5期5卷 343-347页

作者： Alan Brown Lucy e.Adam Tom L.Blundell Department of Biochemistry University of CambridgeCambridge CB2 1GAUK

Dear editor, Fibroblast growth factors （FGFs） regulate a plethora of crit- ical processes in development （Beenken and Mohammadi, 2009）. These processes are mediated by signaling through four FGF receptors （FGFR1-4）, which are high-affinity cell surface receptor tyrosine kinases. Receptors 1-3 undergo alternative splicing to generate b- and c-isoforms with altered ligand specificities and affinities. Ligand to receptor binding is not unique and one receptor can be activated by several FGFs. Heparan sulfate （HS） proteoglycan, a variably poly- sulfated glycosaminoglycan related to heparin, is an essential requirement for FGF signaling with FGFs varying in their specificities for different HS sulfation patterns （Galla- gher et al., 1992）.

关键词： Heparan Sulfate Isothermal Titration Calorimetry Hydrophobic Groove Isothermal Titration Calorimetry Data Heparin Oligosaccharide

人工肝支持系统相关血源性病原体感染预防与控制专家共识

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新发传染病电子杂志 2024年第3期9卷 98-104页

作者：胡玲利莫丹李康花张丽辉汪明明罗梦婷陈冲张志云袁素娥中南大学湘雅医学院附属株洲医院感染内科湖南株洲412000 中南大学湘雅医院感染病科湖南长沙410008 湘西自治州人民医院感染一科湖南湘西416000 中南大学湘雅二医院普外科湖南长沙410008 中南大学湘雅医院心血管内科湖南长沙410008 首都医科大学附属北京地坛医院护理部北京101300 中南大学湘雅医院护理部湖南长沙410008

人工肝支持系统(简称人工肝)是目前治疗肝衰竭的重要手段,因部分患者为血源性病原体携带者或感染者,在治疗过程中患者及医护人员存在血源性病原体感染的风险。我国人工肝相关血源性病原体感染防控策略相关研究处于起步阶段,缺乏规范性... 详细信息

人工肝支持系统(简称人工肝)是目前治疗肝衰竭的重要手段,因部分患者为血源性病原体携带者或感染者,在治疗过程中患者及医护人员存在血源性病原体感染的风险。我国人工肝相关血源性病原体感染防控策略相关研究处于起步阶段,缺乏规范性、一致性认识。为此,中华护理学会传染病护理专业委员会、湖南省护理学会传染病护理专业委员会组织国内专家,基于国家医院感染防控的相关法律、法规,参考国内外人工肝治疗及血源性病原体感染防控现状,结合我国临床诊疗指南及最佳临床实践证据要求,经反复讨论、修改形成本共识。共识通过对人工肝治疗各环节的风险评估,制定规避风险的安全操作流程,主要包括人工肝室设置、制度管理要求、治疗过程基于患者及医护人员防控细则、暴露处理流程等25项专家共识内容,为人工肝相关血源性病原体感染预防与控制提供临床指导,规避血源性病原体职业暴露及院内感染风险,保障患者及医护人员安全。

关键词：人工肝血源性病原体感染预防与控制职业暴露专家共识

Role of chromosomal instability and clonal heterogeneity in the therapy response of breast cancer cell lines

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Cancer Biology & Medicine 2020年第4期17卷 970-985页

作者： Natalia Vargas-Rondon erika Perez-Mora Victoria e.Villegas Milena Rondon-Lagos School of Biological Sciences Universidad Pedagogica y Tecnologica de ColombiaTunja 150003Colombia Biology Program Faculty of Natural SciencesUniversidad del RosarioBogota 111221Colombia

Objective:Chromosomal instability(CIN)is a hallmark of cancer characterized by cell-to-cell variability in the number or structure of chromosomes,frequently observed in cancer cell populations and is associated with poor prognosis,metastasis,and therapeutic *** cancer(BC)is characterized by unstable karyotypes and recent reports have indicated that CIN may influence the response of BC to chemotherapy ***,paradoxical associations between extreme CIN and improved outcome have been ***:This study aimed to 1)evaluate CIN levels and clonal heterogeneity(CH)in MCF7,ZR-751,MDA-MB468,BT474,and KPL4 BC cells treated with low doses of tamoxifen(TAM),docetaxel(DOC),doxorubicin(DOX),Herceptin(HT),and combined treatments(TAM/DOC,TAM/DOX,TAM/HT,HT/DOC,and HT/DOX)by using fluorescence in situ hybridization(FISH),and 2)examine the association with response to treatments by comparing FISH results with cell ***:Intermediate CIN was linked to drug sensitivity according to three characteristics:estrogen receptorα(eRα)and HeR2 status,pre-existing CIN level in cancer cells,and the CIN induced by the ***α+/HeR2-cells with intermediate CIN were sensitive to treatment with taxanes(DOC)and anthracyclines(DOX),while eRα-/HeR2-,eRα+/HeR2+,and eRα-/HeR2+cells with intermediate CIN were resistant to these ***:A greater understanding of CIN and CH in BC could assist in the optimization of existing therapeutic regimens and/or in supporting new strategies to improve cancer outcomes.

关键词： Breast cancer chromosomal instability therapy resistance FISH clonal heterogeneity

Discovery of a Miaohe-type Biota from the Neoproterozoic Doushantuo Formation in Jiangkou County, Guizhou Province, China

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Chinese Science Bulletin 2004年第20期49卷 2224-2226页

作者： ZHAOYuanlong CHeNMeng'e PeNGJin YUMeiyi HeMinghua WANGYue YANGRongjun WANGPingli ZHANGZhenhan CollegeofResourceandenvironmentofGuizhouUniversityofTechnology.Guiyang550003.China InstituteofGeologyandGeophysics ChineseAcademyofSciencesBeijing100029.China 103GeologicalTeam BureauofGuizhouGeologyandMineralogy.Tongren564065.China

A megascopic algal fossil assemblage was first discovered by Ma Guogan and Chen Meng'e in the black shales of the Neoproterozoic Doushantuo Formation in Miaohe Town, Zigui County, Hubei Province in 1978[1]. Formal naming of the Miaohe Biota was proposed by Cheng Meng'e and Xiao Zongzheng in 1991[2], and eleven morphological genera have been previously described, including megascopic algae and putative metazoans[3]. Ding et al.[4] greatly expanded the scope of the Miaohe Biota to 9 phyla consisting of 140 genera, including microphytoplanctons, megascopic algae, metazoans, sponges and trace fossils. Xiao et al.[5] further restudied this fossil assemblage, concluding that only about 18 distinct taxa could be recognized and that many Miaohe taxa are poorly defined or synonymous.

关键词：贵州新元古界海藻化石组合 Miaohe生物群