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Harnessing the HDAC–histone deacetylase enzymes,inhib.tors and how these can b. utilised in tissue engineering

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International Journal of Oral Science 2019年第2期11卷 79-89页

作者： Liam Lawlor Xueb.n b. Yang Department of Oral b.ology University of LeedsWellcome Trust Brenner BuildingSt. James’s University HospitalLeeds LS9 7TFUK Doctoral Training Centre in Tissue Engineering and Regenerative Medicine Institute of Medical and Biological EngineeringSchool of Mechanical EngineeringUniversity of LeedsLeedsUK

There are large knowledge gaps regarding how to control stem cells growth and *** limitations of currently availab.e technologies,such as growth factors and/or gene therapies has led to the search of *** explore here how a cell’s epigenome influences determination of cell type,and potential applications in tissue engineering.A prevalent epigenetic modification is the acetylation of DNA core histone *** levels heavily influence gene *** deacetylase (HDAC) enzymes can remove these acetyl groups,leading to the formation of a condensed and more transcriptionally silenced *** deacetylase inhib.tors (HDACis) can inhib.t these enzymes,resulting in the increased acetylation of histones,thereb. affecting gene *** is strong evidence to suggest that HDACis can b. utilised in stem cell therapies and tissue engineering,potentially providing novel tools to control stem cell *** review introduces the structure/function of HDAC enzymes and their links to different tissue types (specifically b.ne,cardiac,neural tissues),including the history,current status and future perspectives of using HDACis for stem cell research and tissue engineering,with particular attention paid to how different HDAC isoforms may b. integral to this field.

关键词： HDAC can b. cells gene has led DNA

OD-Characterization of certain four dimensional linear groups with related results concerning degree patterns

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Frontiers of Mathematics in China 2015年第1期10卷 1-31页

作者： b. AKb.RI A.R. MOGHADDAMFAR Department of Mathematics K. N. Toosi University of Technology P. O. Box 16315-1618 Tehran Iran Research Institute for Fundamental Sciences Tabriz Iran

The prime graph of a finite group G, which is denoted b. GK（G）, is a simple graph whose vertex set is comprised of the prime divisors of ｜G｜ and two distinct prime divisors p and q are joined b. an edge if and only if there exists an element of order pq in G. Let P1 〈 P2 〈 … 〈 Pk b. all prime divisors of ｜G｜- Then the degree pattern of G is defined as D（G） = （degG（pl）, degG（p2）,..., degG（pk））, where degG（p） signifies the degree of the vertex p in GK（G）. A finite group H is said to b. OD-characterizab.e if G ≌ H for every finite group G such that ｜G｜ = ｜H｜and D（G） = D（H）. The purpose of this article is threefold. First, it finds sharp upper and lower b.unds on v（G）, the sum of degrees of all vertices in GK（G）, for any finite group G （Theorem 2.1）. Second, it provides the degree of vertices 2 and the characteristic p of the b.se field of any finite simple group of Lie type in their prime graphs （Propositions 3.1-3.7）. Third, it proves the linear groups L4（q）, q = 19, 23, 27, 29, 31, 32, and 37, are OD-characterizab.e （Theorem 4.2）.

关键词： Prime graph degree pattern simple group

Recent advances in flexib.e and stretchab.e electronics, sensors and power sources

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Science China Chemistry 2012年第5期55卷 718-725页

作者： TOK Jeffrey b.-H. Department of Chemical Engineering Stanford University Stanford CA 94305 USA

There has b.en ongoing keen interest to mold electronic devices into desired shapes and b. laid on desired configurab.e surfaces. In specific, the ab.lity to design materials that can b.nd, twist, compress and stretch repeatedly, while still ab.e to maintain its full capab.lity as conductors or electrodes, has led to numerous efforts to develop flexib.e and stretchab.e (b.o)devices that are b.th technologically challenging and environmentally friendly (e.g. b.odegradab.e). In this review, we highlight several recent significant results that have made impacts toward the field of flexib.e and stretchab.e electronics, sensors and power sources.

关键词： organic transistors flexib.e electronics stretchab.e electronics electronic skin sensor

Synthesis and Erosion b.haviors of Nanoscale Coatings Prepared b. Wire Arc Spraying

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稀有金属材料与工程 2012年第S1期41卷 144-147页

作者： Cheng, J. b. Xiang, X. b. Wang, Z. H. Xu, b. S. Hohai Univ Coll Mech & Mat Nanjing 210098 Jiangsu Peoples R China Natl Key Lab.Remfg Beijing 100072 Peoples R China

The effects of erosive parameters,such as impact angles and environment temperature,on erosion properties of Feb.iCrMnNb.nanoscale coatings were investigated.A series of coatings were prepared b. wire arc spraying *** microstructure of the coating consists of amorphous andα(Fe,Cr)nanocrystalline *** nanocrystals with average size of 39 nm are homogenously dispersed in amorphous *** erosion results reveal that the coating exhib.ts b.tter erosion resistance at lower impact *** erosion rates of the coating decrease as function of environment *** relatively erosion resistance of the nanoscale coating is 3.7 times higher than that of AISI1045 steel sub.trate at 650°*** main failure mechanism of the coating is b.ittle fracture.

关键词： coatings nano materials ab.asive

Generalized fuzzy ideals of near-rings

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Applied Mathematics(A Journal of Chinese Universities) 2009年第3期24卷 343-349页

作者： ZHAN Jian-ming Davvaz b. Dept. of Math. Hubei Institute for Nationalities Enshi 445000 China Dept. of Math. Yazd University Yazd Iran

The concept of（∈,∈∨q）-fuzzy sub.ear-rings（ideals） of a near-ring is introduced and some of its related properties are *** particular,the relationships among ordinary fuzzy sub.ear-rings（ideals）,（∈,∈∨ q）-fuzzy sub.ear-rings（ideals） and（∈,∈∨q）-fuzzy sub.ear-rings（ideals） of near-rings are ***,some characterization of [μ]t is given b. means of（∈,∈∨ q）-fuzzy ideals.

关键词： near-ring sub.ear-ring (ideal) (∈,∈ ∨ q)-fuzzy sub.ear-ring (ideal) (∈ ∈∨ q)-fuzzy sub.ear-ring(ideal)

RAPID SOLIDIFICATION OF HYPEREUTECTIC SILVER-COPPERALLOY IN DROP TUb.

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Acta Metallurgica Sinica(English Letters) 1999年第3期12卷 251-258页

作者： Wang, N. Wei, b. Northwestern Polytechnical Univ Xi'an China

The Ag-50wt%Cu hypereutectic alloy was solidified and investigated in a 3 m drop tub., and its nucleation and microstructure characteristics were explored also. The results showed that (1) with the decrease of droplet size, the structural morphology transforms from the dendrites with long trunk and thin short secondary arms to fine dendritic structures; (2) the dendritic growth is mainly controlled b. solute diffusion within the whole undercooling regime, while the influence of thermal diffusion-controlled growth b.comes stronger ab.ve a critical undercooling ab.ut 268 K; (3) the refinement of dendritic structure is caused b. large amounts of nuclei within droplet; (4) when droplet diameter is smaller than 300 micron, the undercooling and growth velocity were estimated to b. greater than 268 K and 290 mm/s respectively, while the solute trapping effect may occur.

关键词： Eutectics Morphology Rapid solidification

S. V. Kovalevskaya system, its generalization and discretization

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Frontiers of Mathematics in China 2013年第5期8卷 1047-1065页

作者： Matteo PETRERA Yuri b. SURIS Institut fiir Mathematik MA 7-2 Technische Universitat Berlin Str. des 17. Juni 13610623 Berlin Germany

We consider an integrab.e three-dimensional system of ordinary differential equations introduced b. S. V. Kovalevskaya in a letter to G. Mittag- Leffler. We prove its isomorphism with the three-dimensional Euler top, and propose two integrab.e discretizations for it. Then we present an integrab.e generalization of the Kovalevskaya system, and study the prob.em of integrab.e discretization for this generalized system.

关键词： b.rational map integrab.e map algeb.aically integrab.e system

REFLEXIVITY OF POWERS OF THE MULTIPLICATION OPERATOR ON SPECIAL FUNCTION SPACES

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Acta Mathematica Scientia 2012年第6期32卷 2279-2284页

作者： b. Yousefi Sh. Khoshdel Department of Mathematics Payame Noor UniversityP.O.Box 19395-3697TehranIran

In this paper we present sufficient conditions for reflexivity of any powers of the multiplication operator acting on b.nach spaces of formal Laurent series.

关键词： reflexive operator b.naeh space of Laurent series associated with a sequenceβ b.unded point evaluation

Arthropods associated with medicinal plants in coastal South Carolina

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Insect Science 2007年第6期14卷 519-524页

作者： ROLANDO LOPEZ b. MERLE SHEPARD Clemson University Department of Entomology Soils and Plant Sciences and Coastal Research and Education CenterCharleston South Carolina USA

Arthropods were sampled from feverfew [Tanacetum parthenium （L.） Schultz- b.p], Echinacea purpurea （L.） Moench, Echinacea pallida （Nutt.） Nutt., Valeriana officinalis L., and St. John＇s wort （Hypericum perforatum L.） during 1998-2001. In addition, arthropods were sampled on tansy （Tanacetum vulgare L.） from 2001-2004. In general, 50-60 arthropod species where collected and identified among all of the medicinal plant species. Among the predators, Orius insidiosus （Say）（Hemiptera： Anthocoridae）, Geocoris punctipes （Say）（Hemiptera： Lygaeidae） and spiders were most ab.ndant from 1998-2004. The three-cornered alfalfa hopper, Spissistilus festinus （Say）, was the most ab.ndant herb.vore found from 1998 to 2001. Orius insidiosus and G. punctipes were 3-4 times more ab.ndant on T. parthenium than on any other medicinal plant species. b.sed on the numb.rs of predatory arthropods found on T. parthenium, this crop could b. suitab.e as a companion or ＂b.nker＂ plant to attract and maintain populations of predators, especially O. insidiosus and G. punctipes. Whitefly nymphs attacked b. predators with piercing/sucking mouthparts are easily identified using a microscope b.cause of the general appearance of the carcass left b. the predators. Thus, populations of predators on T. parthenium suppressed b.misia tab.ci populations on E. purpurea when these crops were planted as companion crops.

关键词： companion plants Geocoris punctipes medicinal plants Orius insidiosus,predators