Small deformations of extreme five dimensional Myers-Perry black hole initial data

In this note we demonstrate the existence of a one-parameter family of initial data for the vacuum Einstein equations in five dimensions representing small deformations of the extreme Myers-Perry black hole. This initial data set has `$t-\phi^i$' symmetry and preserves the angular momenta and horizon geometry of the extreme solution. Our proof is based upon an earlier result of Dain and Gabach-Clement concerning the existence of $U(1)$-invariant initial data sets which preserve the geometry of extreme Kerr (at least for short times)Comment: LateX, 29 pages; v2: revised and streamlined to agree with published versio

Correlation between Penile Length and Anogenital Distance in Term Newborns, Gorgan, 2011

Background and purpose: Anogenital distance is an accepted indicator for endogenous or environmental effects of androgens on development of reproductive system in fetus and newborns. This study was done to determine the relationship between penile length and anogenital distance in Iranian newborns. Material and Methods: In this cross-sectional study stretched penile length (PL) and anogenital distance (AGD) were measured in 427 healthy male newborn infants born in a Teaching Hospital (in north of Iran). Other variables included the age of mothers, and weight, height, and head circumference of neonates. Normal distribution of variables was measured by Shapiro-Wilk and data was analyzed using Pearson Correlation tests Results: The mean of PL was 32.1±3.5 mm and the mean of AGD was 24.5±2.5mm. A weak correlation was observed between PL and AGD (r=0.097, p=0.046). Conclusion: The correlation between penile length and AGD showed that, AGD could be also used in assessing the genital system and even as a common indicator to assess the genital system in both sexes Keywords: penile length, anogenital, distance,term newborn, mal

Existence and Uniqueness of Stationary Solutions in 5-Dimensional Minimal Supergravity

We study the problem of stationary bi-axially symmetric solutions of the $5$-dimensional minimal supergravity equations. Essentially all possible solutions with nondegenerate horizons are produced, having the allowed horizon cross-sectional topologies of the sphere $S^3$, ring $S^1\times S^2$, and lens $L(p,q)$, as well as the three different types of asymptotics. The solutions are smooth apart from possible conical singularities at the fixed point sets of the axial symmetry. This analysis also includes the solutions known as solitons in which horizons are not present but are rather replaced by nontrivial topology called bubbles which are sustained by dipole fluxes. Uniqueness results are also presented which show that the solutions are completely determined by their angular momenta, electric and dipole charges, and rod structure which fixes the topology. Consequently we are able to identify the finite number of parameters that govern a solution. In addition, a generalization of these results is given where the spacetime is allowed to have orbifold singularities.Comment: 31 page

Assessment of the incidence of sensorineural hearing loss among infants admitted to neonatal intensive care unit in health centers of Golestan University of Medical Sciences, Iran

Materials and methods: In this prospective cohort study, 870 neonates were recruited by nonrandom sampling method. After filling in the demographic and clinical check lists, automated auditory brainstem response (AABR) was performed for neonates at the beginning of hospitalization; then they were followed-up and again they were assessed with AABR and for those babies who had abnormal AABR, auditory brainstem response (ABR) was performed before discharge at the same day

Thigh echymosis in a newborn

Background and aim: Protein C is one of the important components in haemostasis system and its deficiency could increase the risk of thromboembolic events. This deficiency is seen in 0.2% of the general population. In this case report we present a 3-day old neonate with an echymosis in her left thigh. Case presentation: A female neonate was visited regards to an echymotic lesion in her left thigh and a lighter one in the right which was present at birth. In her laboratory tests, protein C reported 17% while her parents had normal level. She was treated with antithrombotics and level of protein C elevated to 73% at discharge. Conclusion: Clinical manifestations of protein C deficiency could be severe and life threatening, so quick and careful management is needed

Penile length and anogenital distance in male newborns from different Iranian ethnicities in Golestan Province

Background: Anogenital distance (AGD) is a feasible and accepted parameter of exogenous or endogenous androgens effects on development of reproductive system