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Journal of Water Resource and Protection 2011年第4期3卷 213-221页

作者： Stanislav Radchenko ivan Novakov Philipp Radchenko Cong Le Van Elena Rybakova 不详

The flocculating properties of polymer-colloid complexes (PCCs) formed via noncovalent interactions of positively charged aluminoxane particles (APs) with macromolecules of weakly charged cationic acrylamide copolymers from the Praestol and Organopol series have been studied. The PCCs that spontaneously formed during mixing of sols of a high-basicity aluminum polyhydroxochloride (APHC) with aqueous solutions of the copolymers exhibit high flocculating ability under the conditions of gravity sedimentation of the model kaolin dispersion with Сd = 8 g/dm3, and their efficiency exceeds both that of the copolymers and the earlier obtained PCCs with nonionogenic polyacrylamide (PAA). In contrast to weakly charged polycationites, the fully charged KF-99 polyelectrolyte does not form PCCs and the products of its mixing with APHC do not reveal an increased flocculating effect.

关键词： Polymer-Colloid Complexes of Aluminoxane Particles Weakly Charged Cationic Polyelectrolytes Kaolin Flocculation

Observation of a single protein by ultrafast X-ray diffraction

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Light(Science & Applications) 2024年第1期13卷 80-90页

作者： Tomas Ekeberg dameli Assalauova Johan Bielecki Rebecca Boll Benedikt J.daurer Lutz A.Eichacker Linda E.Franken davide E.Galli Luca Gelisio Lars Gumprecht Laura H.Gunn Janos Hajdu Robert Hartmann dirk Hasse Alexandr Ignatenko Jayanath Koliyadu Olena Kulyk Ruslan Kurta Markus Kuster Wolfgang Lugmayr Jannik Lübke Adrian P.Mancuso Tommaso Mazza Carl Nettelblad Yevheniy Ovcharenko daniel E.Rivas Max Rose Amit K.Samanta Philipp Schmidt Egor Sobolev Nicusor Timneanu Sergey Usenko daniel Westphal Tamme Wollweber Lena Worbs Paul Lourdu Xavier Hazem Yousef Kartik Ayyer Henry N.Chapman Jonas A.Sellberg Carolin Seuring ivan A.Vartanyants Jochen Küpper Michael Meyer Filipe R.N.C.Maia Laboratory of Molecular Biophysics Department of Cell and Molecular BiologyUppsala UniversityHusargatan 3(Box 596)SE-75124 UppsalaSweden deutsches Electronen-Synchrotron dESY Notkestrasse 8522607 HamburgGermany European XFEL Holzkoppel 422869 SchenefeldGermany diamond Light Source Harwell Science&Innovation CampusDidcot OX110DEUK University of Stavanger Centre Organelle ResearchRichard-Johnsensgate 44021 StavangerNorway Leibniz Institute for Experimental Virology(HPI) Centre for Structural Systems BiologyNotkestraße 8522607 HamburgGermany dipartimento di Fisica“Aldo Pontremoli” Universitàdegli Studi di Milanovia Celoria 1620133 MilanoItaly Center for Free-Electron Laser Science DESY22607 HamburgGermany Plant Biology Section School of Integrative Plant ScienceCornell UniversityIthacaNY 14853USA PNSensor GmbH Otto-Hahn-Ring 6D-81739 MünchenGermany Biomedical and X-Ray Physics Department of Applied PhysicsAlbaNova University CenterKTH Royal Institute of TechnologySE-10691 StockholmSweden ELI Beamlines/IoP Institute of Physics AS CR v.v.i.Na Slovance 218221 Prague 8Czech Republic Multi-User CryoEM Facility Centre for Structural Systems BiologyNotkestr.8522607 HamburgGermany University Medical Center Hamburg-Eppendorf(UKE) Martinistrasse 5220246 HamburgGermany The Hamburg Center for Ultrafast Imaging Universität HamburgLuruper Chaussee 14922761 HamburgGermany department of Physics Universität HamburgLuruper Chaussee 14922761 HamburgGermany department of Chemistry and Physics La Trobe Institute for Molecular ScienceLa Trobe UniversityMelbourneVIC 3086Australia division of Scientific Computing Science for Life LaboratoryDepartment of Information TechnologyUppsala UniversityBox 337SE-75105 UppsalaSweden European Molecular Biology Laboratory c/o DESYNotkestrasse 8522607 HamburgGermany department of Physics and Astronomy Uppsala UniversityBox 516SE-75120 UppsalaSweden Max Planck Institute for the Structure and dynamics of Matter Luruper Chaussee 14922761 HamburgGe

The idea of using ultrashort X-ray pulses to obtain images of single proteins frozen in time has fascinated and inspired *** was one of the arguments for building X-ray free-electron *** to theory,the extremely intense pulses provide sufficient signal to dispense with using crystals as an amplifier,and the ultrashort pulse duration permits capturing the diffraction data before the sample inevitably *** was first demonstrated on biological samples a decade ago on the giant *** then,a large collaboration has been pushing the limit of the smallest sample that can be *** ability to capture snapshots on the timescale of atomic vibrations,while keeping the sample at room temperature,may allow probing the entire conformational phase space of *** we show the first observation of an X-ray diffraction pattern from a single protein,that of Escherichia coli GroEL which at 14 nm in diameter is the smallest biological sample ever imaged by X-rays,and demonstrate that the concept of diffraction before destruction extends to single *** the pattern,it is possible to determine the approximate orientation of the *** experiment demonstrates the feasibility of ultrafast imaging of single proteins,opening the way to single-molecule time-resolved studies on the femtosecond timescale.

关键词： smallest intense ultrafast

One-Stage Technology for Production of Concentrated Ethylene Glycol-Water Solutions （Automotive Antifreeze）

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Journal of Chemistry and Chemical Engineering 2013年第8期7卷 743-747页

作者： Valeriy Shvets Roman Kozlovskiy Mikhail Makarov Yuriy Suchkov ivan Kozlovskiy d. I. Mendeleev University of Chemical Technology of Russia Moscow 125047 Russia

The reactor unit for one-stage technology for production of concentrated ethylene glycol-water solutions is *** solutions could be useful for production of automotive antifreezes. The technology is based on the highly selective hydration ofethylene oxide in the presence of heterogeneous catalyst-anion-exchange resin in HCO3-/CO/3/2-_form. The mathematical model of reactor allowed evaluating of economical benefit in comparison with conventional method.

关键词： Ethylene oxide ethylene glycol selective hydration anion-exchange resin.

Antimicrobial chemical constituents from endophytic fungus Phoma sp.

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Asian Pacific Journal of Tropical Medicine 2014年第9期7卷 699-702页

作者： Hidayat Hussain Ines Kock Ahmed Al-Harrasi Ahmed Al-Rawahi Ghulam Abbas ivan R.Green Afzal Shah Amin Badshah Muhammad Saleem Siegfried draeger Barbara Schulz Karsten Krohn department of Chemistry University of PaderbornWarburger Strasse 10033098 PaderbornGermany UoN Chair of Oman's Medicinal Plants and Marine Natural Products University of NizwaP.O Box 33Postal Code 616Birkat Al MauzNizwaSultanate of Oman department of Chemistry CUTAbbottabad CampusAbbottabad-22060Pakistan department of Chemistry and Polymer Science University of StellenboschP/Bag X1 Matieland 7602South Africa department of Chemistry Quaid-i-Azam University45320 IslamabadPakistan department of Chemistry The Islamia University of BahawalpurBaghdad Campus-ul-JadidBahawalpurPakistan Institute of Microbiology University of BraunschweigSpielmannstraβe 738106 BraunschweigGermany

Objective:To evaluate the antiniicrobial polenlial of different extracts of the endophytic fungus Phoma *** the tentative identification of their active ***:The extract and compounds were screened for antimicrobial activity using the Agar Well diffusion *** compounds were purified using column chromatography and tlieir structures were assigned using～1H and～(13)C NMR spectra,dEPT,2d COSY,HMQC and HMBC ***:The ethyl acetate fraction of Phoma *** good antifungal,antibacterial,and algicidal *** new dihydrofuran derivative,named phomafuranol(1),together with tliree known compounds,phomalacton(2),(3R)-5-hydroxymellein(3)and emodin(4)were isolated from the ethyl acetate fraction of Phoma *** studies indicated that phomalacton(2)displayed strong antibacterial,good antifungal and antialgal ***(3R)-5-hydroxymellein(3)and emodin(4)showed good antifungal,antibacterial and algicidal ***:Antimicrobial activities of the ethyl acetate fraction of the endophytic fungus Phoma *** isolated compounds clearly demonstrate that Phoma *** its active compounds represent a great potential for the food,cosmetic and pharmaceutical industries.

关键词： Natural product Endrophytic fungi Phoma sp

含有较多烯丙基氯的聚氯乙烯的降解与阳离子改性

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聚氯乙烯 1982年第3期 201-203页

作者： Bela ivan ,Joseph.d.Kennedy ,郭志勇北京化工二厂

通过控制脱氯化氢以制备出含有较高烯丙基氯的无色聚氯乙烯—PVC（A）。同原来的树脂相比,PVC（A）的热稳定性和光氧化稳定性有所下降。PVC（A）初始脱氯化氢速度与烯丙基氯含量成直线关系。用MezCpAl处理PVC（A）生成戊二烯化的聚氯乙... 详细信息

通过控制脱氯化氢以制备出含有较高烯丙基氯的无色聚氯乙烯—PVC（A）。同原来的树脂相比,PVC（A）的热稳定性和光氧化稳定性有所下降。PVC（A）初始脱氯化氢速度与烯丙基氯含量成直线关系。用MezCpAl处理PVC（A）生成戊二烯化的聚氯乙烯（PVC—CP）而引起凝胶,并且用马来酸酐可破坏凝胶。PVC（A）/BCl3/异丁基烯体系使异丁基烯充分接枝,产生带有叔基氯端基的聚异丁烯支链。后者经Me2CpAl处理再次成二烯化,产生可被马来酸酐溶解的交联网。

关键词：聚氯乙烯戊二烯脱氯化氢凝胶烯烃脱卤化氢胶体 PVC 烯丙基氯正离子阳离子改性

Low Salt diet Is Associated with the Prevention of Exacerbation in Patients with Relapsing Remitting MS

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Journal of Pharmacy and Pharmacology 2015年第4期3卷 170-172页

作者： Vera Kolyovska Velichka Pavlova ivan Iliev Sava Todorov dimitar Maslarov department of Experimental Morphology Institute of Experimental Morphology Pathology and Anthropology with MuseumBulgarian Academy of Sciences Sofia 1113 Bulgaria Neurology Clinics First MHA T Sofia 1000 Bulgaria

A marked increase in the incidence of autoimmune diseases in the past half-a-century has been observed. MS （multiple sclerosis） is one of the most common chronic immune-mediated inflammatory diseases of the central nervous system in young adults which is characterized by inflammatory demyelination and neurodegeneration with unpredictable effects lasting for the rest of their lives. The aim of the MS treatment is to prevent the demyelination and the reduction of axonal loss. drugs approved for use in MS which reduce the frequency of exacerbations or slow disability progression are referred as dMds （disease-modifying drugs）. Additional treatments of MS include： dietary supplementation, herbal medicine intake, vitamin d3 and vitamin B supplementation and relaxation techniques. However, little is known about the environmental factors that directly influence Th1 7 cells. Increased salt （sodium chloride） concentrations found locally under physiological conditions in vivo markedly boost the induction of murine and human Th 17 cells. Pathogenic IL-23-dependent Th 17 cells have been shown to be critical for the development of EAE （experimental autoimmune encephalomyelitis） along with some genetic risk factors.

关键词： Multiple sclerosis exacerbation salt diet.

Multiomic investigation of Sugarcane mosaic virus resistance in sugarcane

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The Crop Journal 2023年第6期11卷 1805-1815页

作者： Ricardo JoséGonzaga Pimenta Alexandre Hild Aono Roberto Carlos Villavicencio Burbano Marcel Fernando da Silva ivan Antônio dos Anjos Marcos Guimarães de Andrade Landell Marcos Cesar Gonçalves Luciana Rossini Pinto Anete Pereira de Souza Centre for Molecular Biology and Genetic Engineering University of CampinasCampinasBrazil Gustavo Galindo Velasco Campus Littoral Polytechnic Superior SchoolGuayaquilEcuador Advanced Centre for Technological Research in Sugarcane Agribusiness Agronomic Institute of CampinasRibeirão PretoBrazil Plant Protection Research Centre Biological InstituteSão PauloBrazil department of Plant Biology Institute of BiologyUniversity of CampinasCampinasBrazil

Sugarcane mosaic virus(SCMV)is the main etiological agent of sugarcane mosaic disease,which affects sugarcane and other grass *** the extensive characterization of quantitative trait loci controlling resistance to SCMV in maize,the genetic basis of this trait in sugarcane is largely ***,a genome-wide association study was performed and machine learning coupled with feature selection was used for genomic prediction of resistance to SCMV in a diverse sugarcane *** single-nucleotide polymorphisms(SNPs)explained up to 29.9%of the observed phenotypic variance and a 73-SNP set predicted resistance with high accuracy,precision,recall,and F1 scores(the harmonic mean of precision and recall).Both marker sets were validated in additional sugarcane genotypes,in which the SNPs explained up to 23.6%of the phenotypic variation and predicted resistance with a maximum accuracy of 69.1%.Synteny analyses suggested that the gene responsible for the majority of SCMV resistance in maize is absent in sugarcane,explaining why this major resistance source has not been identified in this ***,using sugarcane RNA-Seq data,markers associated with resistance to SCMV were annotated,and a gene coexpression network was constructed to identify the predicted biological processes involved in *** network allowed the identification of candidate resistance genes and confirmed the involvement of stress responses,photosynthesis,and the regulation of transcription and translation in resistance to *** results provide a practical marker-assisted breeding approach for sugarcane and identify target genes for future studies of SCMV resistance.

关键词： Saccharum SCMV GWAS Machine learning RNA-Seq

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海风琴

城市环境设计 2010年第Z1期 256-261页

作者：赵忞 Nikola Bai ivan Stama d.i.el.

Nikola Bai1946年生于克罗地亚的Murter,1972年从萨拉热窝(现波黑首都)的建筑学院毕业,在1976—1981年间在萨拉热窝建筑学院任教。从1981年起他在克罗地亚的Zadar开办了自己的事务所并生活在那里。从2005年起在斯普利特建筑和土木... 详细信息

Nikola Bai1946年生于克罗地亚的Murter,1972年从萨拉热窝(现波黑首都)的建筑学院毕业,在1976—1981年间在萨拉热窝建筑学院任教。从1981年起他在克罗地亚的Zadar开办了自己的事务所并生活在那里。从2005年起在斯普利特建筑和土木工程学院任教。从2008年5月开始成为克罗地亚科学艺术院艺术协会成员。

关键词：风琴公共空间键盘乐器克罗地亚南欧建筑奖巴塞罗那西班牙

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优秀设计戴尔2007FP

数码先锋 2009年第9期 62-63页

作者： ivan

戴尔2007FP工业设计出色，采用IPS广角面板，使水平／垂直可视角度达到178°，提供了dVI、d-Sub以及4组USB接口，为用户提供了更好更高级的影音娱乐支持。

关键词：优秀设计戴尔 USB接口 d-Sub 工业设计可视角度影音娱乐 IPS

Competing magnetic states in silicene and germanene 2d ferromagnets

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Nano Research 2020年第12期13卷 3396-3402页

作者： dmitry V.Averyanov ivan S.Sokolov Mikhail S.Platunov Fabrice Wilhelm Andrei Rogalev Pierluigi Gargiani Manuel Valvidares Nicolas Jaouen Oleg E.Parfenov Alexander N.Taldenkov Igor A.Karateev Andrey M.Tokmachev Vyacheslav G.Storchak National Research Center“Kurchatov Institute” Kurchatov Sq.1Moscow123182Russia ESRF-The European Synchrotron CS 4022038043Grenoble Cedex 9France ALBA Synchrotron Light Source Cerdanyola del Vallès08290BarcelonaSpain L’Orme des Merisiers Synchrotron SOLEILGyf-sur-Yvette91192France

Two-dimension(2d)magnets have recently developed into a class of stoichiometric materials with prospective applications in ultra-compact spintronics and quantum *** functionality is particularly rich when different magnetic orders are competing in the same *** REX2(RE=Eu,Gd;X=Si,Ge),silicene or germanene—heavy counterparts of graphene—coupled with a layer of rare-earth metals,evolve from three-dimension(3d)antiferromagnets in multilayer structures to 2d ferromagnets in a few *** evolution,however,does not lead to fully saturated 2d ferromagnetism,pointing at a possibility of coexisting/competing magnetic ***,REX2 magnetism is explored with element-selective X-ray magnetic circular dichroism(XMCd).The measurements are carried out for GdSi2,EuSi2,GdGe2,and EuGe2 of different thicknesses down to 1 monolayer employing K absorption edges of Si and Ge as well as M and L edges of the *** access the magnetic state in REX2 and determine the seat of magnetism,orbital,and spin contributions to the magnetic ***-field measurements probe remnants of the bulk antiferromagnetism in 2d *** results provide a new platform for studies of complex magnetic structures in 2d materials.

关键词： silicene germanene 2d ferromagnetism X-ray magnetic circular dichroism(XMCd) monolayer