This document summarises the capabilities of the XY-pic package for typesetting graphs and diagrams in TEX. For a general introduction as well as availability information and conditions refer to the User’s Guide [14]. A characteristic of XY-pic is that it is built around a kernel drawing language which is a concise notation for general graphics, e.g., A B (/).*-+, j j j j j j j j j G ' 55 was d...

We present a new short combinatorial proof of the sufficiency part of the well-known Kuratowski's graph planarity criterion. The main steps are to prove that for a minor minimal non-planar graph G and any edge xy: (1) G-x-y does not contain θ-subgraph; (2) G-x-y is homeomorphic to the circle; (3) G is either K5 or K{3,3}. c © 1997 John Wiley & Sons, Inc. In 1930, K. Kuratowski published his wel...

To investigate whether sex chromosome complement modulates bradycardic baroreflex response and contributes to the angiotensin II-bradycardic baroreflex sex differences, we used the four core genotype mouse model in which the effect of gonadal sex and sex chromosome complement is dissociated, allowing comparisons of sexually dimorphic traits among XX and XY females, as well as in XX and XY males...

PURPOSE to verify the prevalence and clinical characteristics of patients with primary amenorrhea and XY karyotype, evaluated in our Service, aiming at identifying findings which could help their recognition. METHODS from January 1975 to November 2007, 104 patients with amenorrhea were evaluated. All the cases were analyzed by the karyotype by GTG bands. Among them, 21 (20.2%) presented a XY ...

High-valent transition-metal-substituted Keggin-type polyoxometalates (POMs) are active and robust oxidation catalyst. The important oxidized intermediates of these POM complexes are very difficult to be characterized by using the experimental method, and thus no detail information is available on such species. In the present paper, density functional theory (DFT) calculations have been carried...

OBJECTIVES To compare bone mineral density (BMD) and body proportions between women with complete androgen insensitivity syndrome (CAIS) and with gonadal dysgenesis (GD). SETTING Adult Disorders of Sexual Development and Ovarian Failure Clinics at University College London Hospitals. DESIGN Retrospective cross-sectional study of three groups of women aged 17-58 years with varying degrees of...

We tested the role of sex chromosome complement and gonadal hormones in sex differences in several different paradigms measuring nociception and opioid analgesia using "four core genotypes" C57BL/6J mice. The genotypes include XX and XY gonadal males, and XX and XY gonadal females. Adult mice were gonadectomized and tested 3-4 weeks later, so that differences between sexes (mice with testes vs....

The following ‘constraint matrix span problem’ arises in the assignment of radio channels in cellular communications systems. Given a graph G with a positive integer length l(xy) for each edge xy, and given a positive integer B, can we assign to each vertex x a channel (x) from 1; : : : ; B such that | (x)− (y)|¿ l(xy) for each edge xy? We show that this problem is NP-complete for graphs of tre...