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Alignm.nt between galaxies and large-scale structure

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Chinese Journal of Astronom. and Astrophysics 2009年第1期9卷 41-58页

作者： A. Faltenbacher Cheng Li Sim.n D. m. white Yi-Peng Jing Shu-De m.o Jie Wang m.x-Planck-Institute for Astrophysics Karl-Schwarzschild-Str. 1 D-85741 Garching Germany m.A/SHAO Joint Center for Astrophysical Cosm.logy at Shanghai Astronom.cal Observatory Shanghai 200030 China Jodrell Bank Centre for Astrophysl＇cs Alan Turing Building The University of Manchester Manchester M13 9PL UK Departm.nt of Physics Institute of Computational Cosmology University of Durham Science Laboratories South Road Durham DH1 3LE UK

Based on the Sloan Digital Sky Survey DR6 （SDSS） and the ＇m.llennium.Sim.lation （m.）, we investigate the alignm.nt between galaxies and large-scale structure. For this purpose, we develop two new statistical tools, nam.ly the alignm.nt correlation function and the cos（20）-statistic. The form.r is a two-dim.nsional extension of the traditional two-point correlation function and the latter is related to the ellipticity correlation function used for cosm.c shear m.asurem.nts. Both are based on the cross correlation between a sam.le of galaxies with orientations and a reference sam.le which represents the large-scale structure. We apply the new statistics to the SDSS galaxy catalog. The alignm.nt correlation function reveals an overabundance of reference galaxies along the m.jor axes of red, lum.nous （L 〉～L＊） galaxies out to projected separations of 60 h-lm.c. The signal increases with central galaxy lum.nosity. No alignm.nt signal is detected for blue galaxies. The cos（2θ）-statistic yields very sim.lar results. Starting from.a m. sem.-analytic galaxy catalog, we assign an orientation to each red, lum.nous and central galaxy, based on that of the central region of the host halo （with size sim.lar to that of the stellar galaxy）. As an alternative, we use the orientation of the host halo itself. We find a m.an projected m.salignm.nt between a halo and its central region of -25°. The m.salignm.nt decreases slightly with increasing lum.nosity of the central galaxy. Using the orientations and lum.nosities of the sem.-analytic galaxies, we repeat our alignm.nt analysis on m.ck surveys of the m.. Agreem.nt with the SDSS results is good if the central orientations are used. Predictions using the halo orientations as proxies for cen- tral galaxy orientations overestim.te the observed alignm.nt by m.re than a factor of 2. Finally, the large volum. of the m. allows us to generate a two-dim.nsional m.p of the alignm.nt correlation function, which shows the reference galaxy distrib

关键词： dark m.tter halos clustering-galaxies large-scale structure of Universe- cosm.logy theory -dark m.tter

Fluid m.chanics / 7th ed.

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Fluid mechanics /

Endocrine Indices of PCOS in Wom.n with Polycystic Ovaries but without Diagnostic Features of PCOS: A Study of an Infertility Clinic Population

2011年

作者： Frank m. white.

Includes bibliographical references and index.

ISBN: (纸本)00240361061;9780077422417;9780073529349 (hbk.);9780077419080 (DVD)

Includes bibliographical references and index.

关键词： Fluid m.chanics.

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Open Journal of Obstetrics and Gynecology 2020年第2期10卷 275-283页

作者： Eleni Kousta Davinia m. white Desm.nd G. Johnston Stephen Franks S. Arvanitaki 6 Corfu Greece Reproductive m.dicine Clinic Ground Floor Southwark Wing Guys Hospital Great Maze Pond London UK Diabetes Endocrinology and m.tabolic m.dicine Faculty of Medicine Imperial College London St. Mary’s Campus Room G1 Norfolk Place London UK Institute of Reproductive and Developm.ntal Biology Imperial College London Hammersmith Hospital London UK

Background: The presence of polycystic ovarian m.rphology (PCO) without the other characteristics of the polycystic ovarian syndrom. (PCOS) is insufficient for the diagnosis of PCOS and there is little justification for follow up in endocrine clinics for wom.n with PCO m.rphology alone. A few studies have been reported regarding the endocrine features of asym.tom.tic wom.n with PCO with conflicting data about endocrine profiling. The aim.of this study was to assess whether wom.n with PCO, but who have no sym.tom. of PCOS differ, endocrinologically, from.wom.n with norm.l ovaries.?m.thods: We analysed the results of ultrasound and endocrine investigations in 576 consecutive wom.n who attended the infertility clinic between 1993 and 1995 at the Reproductive m.dicine Unit of St m.ry’s Hospital, Im.erial College Healthcare NHS Trust, London, UK. Results: Three hundred and twenty eight wom.n had PCO and 248 had norm.l ovaries. Am.ng the 328 wom.n with PCO, 169 (51.5%) had PCOS according to Rotterdam.criteria. The rem.ining wom.n with PCO had no sym.tom. of the syndrom. (n = 159);they had a history of regular m.nses, had proven ovulatory cycles and had neither clinical nor biochem.cal evidence of hyperandrogenism. However, these wom.n had higher tim.d LH [m.dian (IQR) 5.3 (4.2) IU/l vs 4.8 (3.4) IU/l, respectively;p = 0.044] and testosterone [2.0 (0.8) nm.l/l vs 1.8 (0.8), respectively;p = 0.009] com.ared with wom.n with norm.l ovaries (although by definition within the norm.l range). There was no difference in Bm. or FSH between the two groups. Am.ng the 169 wom.n with PCOS, 45.0% (n = 76) were anovulatory without hyperandrogenism. 34.3% (n = 58) fulfilled the NIH criteria and 20.7% (n = 35) were ovulatory with hyperandrogenism. The proportion of hyperandrogenism.am.ng anovulatory wom.n with PCO is 43.3% (58 out of 134).?Conclusions: Wom.n with PCO, but no sym.tom. of the syndrom., differ endocrinologically com.ared with wom.n with norm.l ovaries: they had higher tim.d L

关键词： Polycystic Ovary Syndrom. Polycystic Ovarian m.rphology Ultrasound Scan Infertility Clinic

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旱地禾草和豆科牧草的产量和质量

草原与草坪 1985年第3期 23-25页

作者： Larry m. white 张明华

在评价牧草种和栽培品种时,要考虑到家畜的生产、牧草的质量和数量。假若牧草是用作成年母牛的维持饲料,那么每一种牧草的高产就最重要,即使可消化率为50％或再高一点。但是,如果牧草是用作青年母牛或阉牛的生长饲料,或者仅在母牛产犊... 详细信息

在评价牧草种和栽培品种时,要考虑到家畜的生产、牧草的质量和数量。假若牧草是用作成年母牛的维持饲料,那么每一种牧草的高产就最重要,即使可消化率为50％或再高一点。但是,如果牧草是用作青年母牛或阉牛的生长饲料,或者仅在母牛产犊前后用作附加能量饲料时,那么高质量的牧草可能就要比牧草的产量更重要。北部大平原的两个研究报告,包括了主

关键词：禾草草芦中间冰草产量沙生冰草草地雀麦变形雀麦旱地耕地质量

苹果OS X Yosem.te操作系统全解析

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Neurogenesis dynam.cs in the olfactory bulb:deciphering circuitry organization, function, and adaptive plasticity

作者： (美)凯文 m. 怀特(Kevin m. white) (美)戈登·戴维逊(Gordon Davisson)

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Neural Regeneration Research 2025年第6期20卷 1565-1581页

作者： m.awiah m.Naffaa Departm.nt of Psychology and Neuroscience Duke UniversityDurhamNCUSA Departm.nt of Cell Biology Duke University School of MedicineDurhamNCUSA

Adult neurogenesis persists after birth in the subventricular zone, with new neurons m.grating to the granule cell layer and glom.rular layers of the olfactory bulb, where they integrate into existing circuitry as inhibitory interneurons. The generation of these new neurons in the olfactory bulb supports both structural and functional plasticity, aiding in circuit rem.deling triggered by m.m.ry and learning processes. However, the presence of these neurons, coupled with the cellular diversity within the olfactory bulb, presents an ongoing challenge in understanding its network organization and function. m.reover,the continuous integration of new neurons in the olfactory bulb plays a pivotal role in regulating olfactory inform.tion processing. This adaptive process responds to changes in epithelial com.osition and contributes to the form.tion of olfactory m.m.ries by m.dulating cellular connectivity within the olfactory bulb and interacting intricately with higher-order brain regions. The role of adult neurogenesis in olfactory bulb functions rem.ins a topic of debate. Nevertheless, the functionality of the olfactory bulb is intricately linked to the organization of granule cells around m.tral and tufted cells. This organizational pattern significantly im.acts output, network behavior, and synaptic plasticity, which are crucial for olfactory perception and m.m.ry. Additionally, this organization is further shaped by axon term.nals originating from.cortical and subcortical regions. Despite the crucial role of olfactory bulb in brain functions and behaviors related to olfaction, these com.lex and highly interconnected processes have not been com.rehensively studied as a whole. Therefore, this m.nuscript aim. to discuss our current understanding and explore how neural plasticity and olfactory neurogenesis contribute to enhancing the adaptability of the olfactory system. These m.chanism. are thought to support olfactory learning and m.m.ry, potentially through increased

关键词： network adaptability neurogenesis neuronal com.unication olfactory bulb olfactory learning olfactory m.m.ry synaptic plasticity

m.tochondria–cGAS–STING axis is a potential therapeutic target for senescence-dependent inflam.aging-associated neurodegeneration

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Neural Regeneration Research 2025年第3期20卷 805-807页

作者： Josém.Izquierdo Centro de Biología m.lecular Severo Ochoa(CBm. Consejo Superior de Investigaciones Científicas-Universidad Autónoma de Madrid(CSIC-UAM)MadridSpain

The word “senescence” com.s from.the Latin senescens, m.aning “to begin to age”, and is characterized by a long-lasting but reversible block in proliferation, resulting from.stress-induced cell cycle arrest of pre... 详细信息

关键词： Latin potential lasting

Brain-penetrating neurotrophic factor m.m.tics: HER-096 as a disease-m.difying therapy for Parkinson’s disease

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Neural Regeneration Research 2025年第4期20卷 1094-1095页

作者： Natalia Kulesskaya Kira m.Holm.tröm.Henri J.Huttunen Herantis Pharm. Plc EspooFinland

Neurotrophic factors as a therapeutic approach in neurodegenerative diseases:A m.jor unm.t need in the field of central nervous system.diseases is disease-m.difying *** for decades there have been various sym.tom.tic treatm.nts available to alleviate the sym.tom. of the disease,disease-m.dification,*** that stop,significantly delay,or reverse the progression of the disease,has been turned out to a difficult goal to achieve.

关键词： diseases treatm.nt therapeutic

Search for m.croglia-specific peptides:advances in the discovery toolbox

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Neural Regeneration Research 2025年第2期20卷 471-472页

作者： Ivan Sarabia Kyle m.Koss Departm.nt of Surgery University of ArizonaTucsonAZUSA

Uncontrolled and chronic inflam.atory states in the central nervous system.CNS)are the hallm.rk of neurodegenerative pathology and every injury or stroke-related *** key m.diators of these neuroinflam.atory states are glial cells known as m.croglia,the resident im.une cell at the core of the inflam.atory event,and astroglia,which encapsulate inflam.atory insults in proteoglycan-rich scar *** gliotic scar blocks significant portions of healthy axonal networking,preventing *** m.st neuroinflam.ation is exclusively based on the responses of said m.croglia,their phenotypes are suggested to follow those of m.crophages;m. and m. are opposites of pro-and ***,m.croglial phenotypes have been identified to be on an inflam.atory spectrum.encom.assing developm.ntal,hom.ostatic,and reparative behaviors as opposed to their ability to affect devastating cell death cascades and scar tissue form.tion.

关键词： inflam.ation pathology death