790 research outputs found
The accuracy of chromosomal microarray testing for identification of embryonic mosaicism in human blastocysts
A dança Ă© uma forma ancestral de magia, invenção dos deuses que a ensinaram aos homens, diz-nos a mitologia hindu. Envolvido no mistĂ©rio e movimento da dança, o dançarino pode encantar; porĂ©m, antes de tudo Ă© preciso que encante a si mesmo. NĂŁo seria este tambĂ©m o caminho do professor? Fazer para si para poder fazer ou propor aos educandos, encantar-se para poder encantar; criar para poder seguir com as crianças a aventura da criação; ousar para poder encorajar? Nesta direção, a pergunta que percorre o presente artigo Ă© assim formulada: como contribuir com o processo de encantamento dos professores, como alimentar a sensibilidade, nos percursos da formação universitĂĄria? Buscando respostas no processo de pesquisa, identifica-se na experiĂȘncia com as danças circulares, tradição de diferentes povos, um profĂcuo caminho pelo qual aquele espaço de encantamento, de inteireza, de educação estĂ©tica, igualmente, pode ser provocado
DLCQ of Fivebranes, Large N Screening, and L^2 Harmonic Forms on Calabi Manifolds
We find one explicit L^2 harmonic form for every Calabi manifold. Calabi
manifolds are known to arise in low energy dynamics of solitons in Yang-Mills
theories, and the L^2 harmonic form corresponds to the supersymmetric ground
state. As the normalizable ground state of a single U(N) instanton, it is
related to the bound state of a single D0 to multiple coincident D4's in the
non-commutative setting, or equivalently a unit Kaluza-Klein mode in DLCQ of
fivebrane worldvolume theory. As the ground state of nonabelian massless
monopoles realized around a monopole-``anti''-monopole pair, it shows how the
long range force between the pair is screened in a manner reminiscent of large
N behavior of quark-anti-quark potential found in AdS/CFT correspondence.Comment: LaTeX, 23 page
Rape, inequality and the criminal justice response in England: The importance of age and gender
© The Author(s) 2019. This article draws upon quantitative and content analysis of 585 reports of rape recorded within two police force areas in England in 2010 and in 2014 tracking individual incidents to eventual outcome to examine the impact, if any, of intersecting inequalities on trajectories of rape cases reported to police. The data were collected as part of the wider Economic and Social Research Council funded Justice, Inequality and Gender-Based Violence research project which examined victim-survivor experiences and perspectives on justice. Building on existing distinctions between types of rape case based on the relationship between victim-survivor and accused, the results suggest age and gender are significant factors in how sexual violence, and the criminal justice system, is experienced. While younger women and girls were disproportionately affected by certain types of sexual violence case and more likely to come into contact with the criminal justice system compared to men and older women, they were not necessarily more likely to achieve a conviction. The findings also confirm that some of the most vulnerable victims-survivors of sexual violence, especially those with poor mental health, are still not achieving criminal justice. Victims-survivors from Black and minority ethnic group or lesbian, gay, bisexual, transgender, transsexual, queer groups are underrepresented within the criminal justice system, implying these groups are not seeking a criminal justice response in the same way as âwhiteâ heterosexual victims-survivors
The smart grid as commons: exploring alternatives to infrastructure financialisation
This paper explores a tension between financialisation of electricity infrastructures and efforts to bring critical urban systems into common ownership. Focusing on the emerging landscape of electricity regulation and e-mobility in the United Kingdom (UK), it examines how electricity grid ownership has become financialised, and why the economic assumptions that enabled this financialisation are being called into question. New technologies, such as smart electricity meters and electric vehicles, provide cities with new tools to tackle poor air quality and greenhouse gas emissions. Electricity grids are key enabling infrastructures but the companies that run them do not get rewarded for improving air quality or tackling climate change. UK government regulation of electricity grids both enables financialisation and forecloses opportunities to manage the infrastructure for wider environmental and public benefit. Nonetheless, the addition of smart devices to this network - the âsmart gridâ â opens up an opportunity for common ownership of the infrastructure. Transforming the smart grid into commons necessitates deep structural reform to the entire architecture of infrastructure regulation in the UK
Mystify me: Coke, terror and the symbolic immortality boost
A panel on âMarketing as Mystificationâ convened at the 2011 Academy of Marketing conference in Liverpool. Ideas from the Liverpool event were supplemented by commentaries from selected other authors. Each commentary explores the aspects of âmystificationâ observable in marketing discourses and practices. In what follows, Laufer interprets marketing mystification as modern form of sophism, Dholakia and Firat discuss mystifying ways that inequality is marketed, Varman analyzes the perversion and mystification of âdevelopmentâ via neoliberal marketing of âsocial entrepreneurship,â Mikkonen explores mystifying marketing representations of gays and lesbians, and Freund and Jacobi present a fascinating interpretation of how Coca-Cola advertising mystically reassures us that our difficult, dangerous lifeworld is actually quite hunky-dory. </jats:p
The effectiveness of flow cytometric sorting of human sperm (MicroSort) for influencing a childâs sex
Abstract Background: Flow cytometric sorting can be used to separate sperm based on sex chromosome content. Differential fluorescence emitted by stained X-vs. Y-chromosome-bearing sperm enables sorting and collection of samples enriched in either X-or Y-bearing sperm for use to influence the likelihood that the offspring will be a particular sex. Herein we report the effectiveness of flow cytometric sorting of human sperm and its use in human ART procedures
Taking stock of gene therapy for cystic fibrosis
The identification of the cystic fibrosis (CF) gene opened the way for gene therapy. In the ten years since then, proof of principle in vitro and then in animal models in vivo has been followed by numerous clinical studies using both viral and non-viral vectors to transfer normal copies of the gene to the lungs and noses of CF patients. A wealth of data have emerged from these studies, reflecting enormous progress and also helping to focus and define key difficulties that remain unresolved. Gene therapy for CF remains the most promising possibility for curative rather than symptomatic therapy
A Spitzer Survey of Young Stellar Clusters within One Kiloparsec of the Sun: Cluster Core Extraction and Basic Structural Analysis
We present a uniform mid-infrared imaging and photometric survey of 36 young,
nearby, star-forming clusters and groups using {\it Spitzer} IRAC and MIPS. We
have confidently identified and classified 2548 young stellar objects using
recently established mid-infrared color-based methods. We have devised and
applied a new algorithm for the isolation of local surface density enhancements
from point source distributions, enabling us to extract the overdense cores of
the observed star forming regions for further analysis. We have compiled
several basic structural measurements of these cluster cores from the data,
such as mean surface densities of sources, cluster core radii, and aspect
ratios, in order to characterize the ranges for these quantities. We find that
a typical cluster core is 0.39 pc in radius, has 26 members with infrared
excess in a ratio of Class II to Class I sources of 3.7, is embedded in a
=0.8 mag cloud clump, and has a surface density of 60 pc. We
examine the nearest neighbor distances among the YSOs in several ways,
demonstrating similarity in the spacings between Class II and Class I sources
but large member clusters appear more dense than smaller clusters. We
demonstrate that near-uniform source spacings in cluster cores are common,
suggesting that simple Jeans fragmentation of parsec-scale cloud clumps may be
the dominant process governing star formation in nearby clusters and groups.
Finally, we compare our results to other similar surveys in the literature and
discuss potential biases in the data to guide further interpretation.Comment: 207 pages, 54 figures, 44 tables. Accepted to ApJ Supplements. Full
resolution version at
http://www.cfa.harvard.edu/~rgutermuth/preprints/gutermuth_clusters_survey.pd
Open Wilson Lines and Generalized Star Product in Noncommutative Scalar Field Theories
Open Wilson line operators and generalized star product have been studied
extensively in noncommutative gauge theories. We show that they also show up in
noncommutative scalar field theories as universal structures. We first point
out that dipole picture of noncommutative geometry provides an intuitive
argument for robustness of the open Wilson lines and generalized star products
therein. We calculate one-loop effective action of noncommutative scalar field
theory with cubic self-interaction and show explicitly that the generalized
star products arise in the nonplanar part. It is shown that, at low-energy,
large noncommutativity limit, the nonplanar part is expressible solely in terms
of the {\sl scalar} open Wilson line operator and descendants.Comment: 13 pages, Latex, 1 .eps figure, v2. typos corrected, v3.
combinatorics correcte
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