43 research outputs found

    Comparing different freeze-out scenarios in azimuthal hadron correlations induced by fast partons

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    I review the linearized hydrodynamical treatment of a fast parton traversing a perturbative quark-gluon plasma. Using numerical solutions for the medium's response to the fast parton, I obtain the medium's distribution function which is then used in a Cooper-Frye freeze-out prescription to obtain an azimuthal particle spectrum. Two different freeze-out scenarios are considered which yield significantly different results. I conclude that any meaningful comparison of azimuthal hadron correlation functions to RHIC data requires implementing a realistic freeze-out scenario in an expanding medium.Comment: Contribution to the Proceedings for 2008 Hot Quarks in Estes Park, CO, as accepted for publication in EPJ-

    Schuldig landschap. Over de toeristische aantrekkingskracht van Baantjer, Wallander en Inspector Morse

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    De opnamelokaties van tv-detectives genieten een toenemende populariteit onder toeristen. In dit artikel wordt, op basis van een tekstuele analyse van ‘Baantjer’, ‘Inspector Morse’ en ‘Wallander’, onderzocht welke inhoudelijke kenmerken van deze tv-detectives mogelijk als ‘trigger’ fungeren. Uit de analyse blijkt dat plaats en beweging een centrale rol vervullen binnen de narratieve structuur van dit genre. Door zelf de lokaties te bezoeken, kunnen toeristen het spoor nalopen van hun geliefde detective om aldaar, vanuit een veilige positie, tijdelijk op te gaan in het schemergebied tussen fictie en werkelijkheid

    Point View in Bird and Flower Painting

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    在中国传统绘画中,点景是极其重要的一种表达方式。石涛所研究的绘画问题中,情感、理性、力量都是不可缺少的,如何恰当地运用这三者,却有可能导致完全不同的创作结果。而点景正是这三者的集合点,不仅要用心灵去感受自然对象的内在精神,不能因为对象的限制而使感受层次也受到限制,把眼睛之受升华为心理之受。在绘画作品中合理地运用点景能使画家的情感与物象更加融合,画家自身的主观感受在画面上得到充分的体现,以一种小的特殊表现符号流露出画家作品里表达的象征倾向和审美概念,对画面的构图及意境有着画龙点睛的作用。本文以花鸟画点景为研究对象,重点介绍了点景的表现与意义;进一步阐述了点景在传统花鸟画构成中的作用,着重论述其在...The “point view” is extremely important as a means of expression in the traditional Chinese painting. Emotion, rationality and power are essential in the Shi Tao studied painting, and how to properly use them may lead to the creation of a completely different result. For the reason that “point view” is a collection of these three points, shouldn’t we only use the soul to feel the inner spirit of n...学位:文学硕士院系专业:艺术教育学院美术系_美术学学号:1862007115166

    Genomic variants reducing expression of two endocytic receptors in 46,XY differences of sex development

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    Transporter-dependent steroid hormone uptake into target cells was demonstrated in genetically engineered mice and fruit flies. We hypothesized that mutations in such transporters may cause differences in sex development (DSD) in humans. Exome sequencing was performed in 16 genetically unsolved cases of 46,XY DSD selected from an anonymized collection of 708 lines of genital fibroblasts (GF) that were taken from individuals with incomplete virilization. Selection criteria were based on available biochemical characterization of GF compatible with reduced androgen uptake. Two unrelated individuals were identified with mutations in LDL receptor related protein 2 (LRP2), a gene previously associated with partial sex steroid insensitivity in mice. Like Lrp2(-/-) mice, affected individuals had non-descended testes. Western blots on GF confirmed reduced LRP2 expression, and endocytosis of sex hormone binding globulin was reduced. In three unrelated individuals, with inguinal testes, mutations in another endocytic receptor gene, limb development membrane protein 1 like (LMBR1L), were detected. Two of these individuals had mutations affecting the same codon. In a transfected cell model, mutated LMBR1L showed reduced cell surface expression. Our findings suggest that endocytic androgen uptake in complex with sex hormone binding globulin is relevant in human. LMBR1L may play a similar role in androgen uptake
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