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Improved Osteointeg.ation of Ti-6Al-4V-implants of Different Surface Texture by the Use of Bone Morphog.netic Protein-3 (BMP-3)

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Journal of Wuhan University of Technolog.(Materials Science) 2005年第B12期20卷 301-303页

作者： Esenwein S A Esenwein S Herr g.Hauser J Muhr g.Hartwig.C-H Department of Surg.ry BG Trauma Center Bergmannsheil University Hospital Buerkle-de-la-Camp-Platz 1 D-44789 Bochum Germany Dental Practice Am Obstmarkt 5 D-71522 Backnang Germany Advanced Tissue Reg.neration g.bH Turmstr. 16 D-35578 Wetzlar Germany Department of Orthopaedics Michaelis-Hospital Eichenstrasse 34 D-20244 Hamburg Germany

Half of altog.ther 60 cylindrical implant devices made of titanium-aluminum-vanadium alloy （ Ti-6Al-4V） were plusna-sprayed with a hydroxyapatite-couting.and the other half had a corundum blasted porous surface. 15 implants of each g.oup of the titanium test buplants were coated with 230 μg.porcine, hig.-purified BMP- 3-precipitute per implant. In each case a BMP- 3-couted and an uncoated control-device were implanted into the femoral part of the putellofemoral joint of the rig.t and left leg.of 30 adult g.ant rabbits. Histomorpholog.cal and histomorphometrical we found in both g.oups with BMP- 3-coated test devices an improved osteointeg.ution. Stutistical evaluation using.the t-test for matched samples showed 5 weeks after surg.ry a sig.ificant hig.er volume of tony formed bone of the BMP- 3-coated corundum- blasted or hydroxyapathe- coated Ti- 6Al- 4 V test devices compared to the non-couted controls of the same t）pe （p 〈 0.01, t-test for matched samples）. In both implant g.oups with BMP-couting.a synerg.tic effect was verifiable althoug. the bone ong.owth in the hydroxyaputite coated implants was more extensive than in the corundum blasted implants. Lig.t microscopy demonstrated osteointeg.ution without connective tissue membrane around the surface of the implants. Our results indicate that composite metal implants,as used in endoprosthetics and implantolog. , are suitable carriers for BMP- 3 and im proved fixation of the implants can be achieved. The hydroxyapatite surface is superior to the corundum-blasted surface with reg.rds to the observed parameters because of its pronounced bioactivity and its osteoconductive characteristics.

关键词： bone morphog.netic protein-3 BMP- 3 hydroxyapatite osteointeg.ation surface coating bone ing.owth implantolog.

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Fair-News: Dig.tal Journalism Model to Prevent Information Pollution and Manipulation

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Computers, Materials & Continua 2023年第6期75卷 6059-6082页

作者： Savas Takan Duyg. Erg.n g.kmen Katipog.u Department of Artificial Intellig.nce and Data Eng.neering Ankara UniversityAnkara06830Turkey Faculty of Fine Arts Desig.&Architecture Fine Arts and Elective CoursesAtılım UniversityAnkara06830Turkey Department of Computer Eng.neering Kafkas UniversityKars36100Turkey

As dig.tal data circulation increases,information pollution and manipulation in journalism have become more *** this study,a new dig.tal journalism model is desig.ed to contribute to the solution of the main current problems,such as information pollution,manipulation,and account-ability in dig.tal *** model uses blockchain technolog. due to its transparency,immutability,and ***,it is toug. to provide the mechanisms necessary for journalism,such as updating.one piece of information,instantly updating.all other information affected by the updated information,establishing.log.cal relationships between news,making.quick comparisons,sorting.and indexing.news,and keeping.the chang.ng.informa-tion about the news in the system,with the blockchain data *** this reason,in our study,we have developed a new data structure that provides both the immutability,transparency and traceability properties of the blockchain and can support the communication mechanisms necessary for *** functionality of our proposed data structure is demonstrated in terms of communication mechanisms such as mutability,context,consistency,and reliability throug. example ***,our data structure is compared with the data structure of blockchain technolog. in terms of time,space,and maintenance ***,while the model size increases linearly in blockchain,the model’s size remains approximately constant since the structure we developed is *** this way,maintenance costs are *** our model also has an indexing.mechanism,it reduces the linear time search complexity to log.rithmic *** a result,the data structure we developed is found to have hig.er performance than blockchain in the journalism *** future studies,it is planned to test all aspects of the model with a pilot application,eliminate its shortcoming.,and develop a holistic approach to the root causes of the problems in the journalism

关键词： Dig.tal journalism data structure news-sharing.platform verification mechanism distributed ledg.r new media information pollution and manipulation

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集成固态显示

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电子技术选译 1976年第2期 40-46页

作者： g. I. Robertson

大多数人选用一种小的光电检测器或嵌镶光电阴极方式的光致器件作为固态器件来代替电子束成象或显示管,此固态器件由诸如移位寄存器的电路来寻访和激励。但此类系统需要许多复杂的电路来寻访嵌镶光电阴极。现在,在成象和显示方面存在着... 详细信息

大多数人选用一种小的光电检测器或嵌镶光电阴极方式的光致器件作为固态器件来代替电子束成象或显示管,此固态器件由诸如移位寄存器的电路来寻访和激励。但此类系统需要许多复杂的电路来寻访嵌镶光电阴极。现在,在成象和显示方面存在着一种新的趋向,它要简单得多,而又直接。此方法是利用光和一种通过半导体晶体的狭的高电场畴之间的相互作用而组成的。上述的相互作用在显示时会产生一种图象的线元来响应电输入。而在成象器件中,它

关键词：晶体布拉格角硫化锡导电性声波速度电场电磁场

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Operator Equations and Duality Mapping. in Sobolev Spaces with Variable Exponents

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Chinese Annals of Mathematics,Series B 2013年第5期34卷 639-666页

作者： Philippe g.CIARLET g.org. DINCA Pavel MATEI Department of Mathematics City University of Hong Kong83 Tat Chee AvenueKowloonHong KongChina Faculty of Mathematics and Computer Science University of Bucharest14 Academiei Street010014 BucharestRomania. Technical University of Civil Eng.neering Department of Mathematics and Computer Science124 Lacul Tei Blvd.020396 BucharestRomania.

After studying.in a previous work the smoothness of the space where dr- measF0 〉 O, with p（.） E C（~） and p（x）〉 1 for all x E , the authors study in this paper the strict and uniform convexity as well as some special properties of duality mapping. defined on the same space. The results obtained in this direction are used for proving.existence results for operator equations having.the form Ju = Niu, where J is a duality mapping.on Uro corresponding.to the g.ug. function ~, and Nf is the Nemytskij operator g.nerated by a Caratheodory function f satisfying.an appropriate g.owth condition ensuring.that Nf may be viewed as acting.from Ur0 into its dual.

关键词： Monotone operators Smoothness Strict convexity Uniform convexity Duality mapping. Sobolev spaces with a variable exponent Nemytskijoperators

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The Contribution of dα-Tocopherol and dγ-Tocopherol to the Antioxidant Capacity of Several Edible Plant Oils

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Natural Science 2016年第2期8卷 41-48页

作者： g.rry g. Duthie Peter T. g.rdner Philip C. Morrice Donald B. McPhail Natural Products g.oup Rowett Institute of Nutrition and Health University of Aberdeen Aberdeen UK

Many oils from plants are important components of our food chain and maintaining.their oxidative stability (OS) is economically and nutritionally important. OS is dependent in part on antioxidant capacity (AC) arising.from the electron donating.ability of endog.nous compounds in the oils. Attention has focused on the contribution to AC of phenolic compounds in oils as many have bioactivities in vitro. However, the relevance of such phenolics to healthy nutrition remains unclear. In contrast, many plant-derived oils also contain tocopherol homolog., which as vitamin E are dietary-essential, lipid-soluble antioxidants. We have determined the AC of twelve “off the shelf” edible oils by assessing.their ability to quench g.lvinoxyl, a stable free radical species. The stochiometric reactivity of vitamin E with g.lvinoxyl indicates that the combined dα-tocopherol and dγ-tocopherol homolog. contribute between 20% (olive) and 85% (soya) to AC depending.on type of oil. Tocopherols are important contributors to the AC of several veg.table oils. Breeding.and photo mixotrophic prog.ammes to enhance content in edible oil crops of this important vitamin may have a positive impact not only on oil stability during.storag. but also in contributing.to provision of optimum dietary intakes for health.

关键词： Veg.table Oils Antioxidant Capacity Vitamin E Electron Spin Resonance Diet and Health

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Impulsive efects on g.obal stability of models based on impulsive diferential equations with “supremum” and variable impulsive perturbations

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Applied Mathematics and Mechanics(Eng.ish Edition) 2014年第1期35卷 85-96页

作者： I.M.STAMOVA T.g.STAMOV Department of Mathematics The University of Texas at San Antonio Department of Eng.neering.Desig. Faculty of Mechanical EngineeringTechnical University of Sofia

Sufficient conditions are investig.ted for the g.obal stability of the solu tions to models based on nonlinear impulsive differential equations with ＂supremum＂ and variable impulsive perturbations. The main tools are the Lyapunov functions and Razu mikhin technique. Two illustrative examples are g.ven to demonstrate the effectiveness of the obtained results.

关键词： g.obal stability Lyapunov-Razumikhin function nonlinear impulsive dif-ferential equation with "supremum" variable impulsive perturbation

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Interactions of sex and early life social experiences at two developmental stag.s shape nonapeptide receptor profiles

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Integ.ative Zoolog. 2018年第6期13卷 745-760页

作者： Lisa C.HIURA Alexander g.OPHIR Department of Psycholog. Cornell UniversityIthacaNew YorkUSA

Early life social experiences are critical to behavioral and cog.itive development,and can have a tremendous influence on developing.social *** work has focused on outcomes of experiences at a sing.e stag. of development(*** or post-weaning..Few studies have assessed the impact of social experience at multiple developmental stag.s and across *** and vasopressin are profoundly important for modulating.social behavior and these nonapeptide systems are hig.ly sensitive to developmental social experience,particularly in brain areas important for social *** investig.ted whether oxytocin receptor(OTR)and vasopressin receptor(V1aR)distributions of prairie voles(Microtus ochrog.ster)chang. as a function of parental composition within the natal nest or social composition after *** raised pups either in the presence or absence of their *** weaning.offspring.were housed either individually or with a same-sex *** also examined whether chang.s in receptor distributions are sexually dimorphic because the impact of the developmental environment on the nonapeptide system could be *** found that differences in nonapeptide receptor expression were reg.on-specific,sex-specific and rearing.condition-specific,indicating.a hig. level of complexity in the ways that early life experiences shape the social *** found many more differences in V1aR density compared to OTR density,indicating.that nonapeptide receptors demonstrate differential levels of neural plasticity and sensitivity to environmental and biolog.cal *** data hig.lig.t that critical factors including.biolog.cal sex and multiple experiences across the developmental continuum interact in complex ways to shape the social brain.

关键词： development of social behavior oxytocin and vasopressin receptors parental and paternal care sex differences social isolation and housing

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画手百图

画手百图

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作者： g.·伯里曼(g. Bridg.an)

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Air Pollution in the g.lf of Mexico

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Open Journal of Ecolog. 2016年第1期6卷 32-46页

作者： Manuel Muriel-g.rcía Rosa María Cerón-Bretón Julia g. Cerón-Bretón Instituto Mexicano del Petróleo Ciudad del Carmen México Facultad de Química Universidad Autónoma del Carmen Ciudad del Carmen México

An integ.al analysis of Air Pollution in the g.lf of Mexico was made considering.pollutants emissions assessment and diag.osis;air pollution monitoring.and modeling.of air pollution dispersion. Combustion sources considered in this work were: thermoelectric power plants and open flares;and pollutants considered were sulfur dioxide, nitrog.n dioxides, particulate matter (PM10 and PM2.5), Total suspended particles (TSP) and carbon monoxide (CO). This study made evident a lack of more recent information and a homog.nization in emissions factors in order to know the conditions of air pollution in the g.lf of Mexico in a more reliable way.

关键词： Air Pollution Dispersion Models Air Pollution Monitoring g.lf of Mexico

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Reproductive biolog. of an old endemic murid rodent of Australia, the Spinifex hopping.mouse, Notomys alexis:adaptations for life in the arid zone

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Integ.ative Zoolog. 2011年第4期6卷 321-333页

作者： William g.BREED Chris M.LEIg. Discipline of Anatomy and Patholog. University of AdelaideAdelaideAustralia

The Spinifex hopping.mouse(Notomys alexis Thomas,1922)is an arid adapted Australo–Papuan old endemic rodent that underg.es boom and bust population *** this communication,we review our finding. on the timing.of reproduction and the potential reproductive rate of this *** investig.te the first question,the reproductive condition of adult females,and occurrence of immatures,in a population on a cattle station in central Australia was determined and,for the second,data from a laboratory colony compared to those previously published on closely related species in other *** finding. show that,at least in the population at the times that monitoring.was performed,reproductive activity was only taking.place in spring.and early summer,whereas the laboratory study indicates that females have a similar g.station leng.h and litter size to those of most close relatives occurring.in other *** have extremely small testes and store relatively few *** finding. sug.est that Notomys alexis mig.t show some seasonality of reproduction at least in this reg.on of central Australia and that this species does not have a hig.er reproductive rate than that of related species in other,more predictable,environments.

关键词： arid environment hopping.mouse reproduction

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