Kaon condensation in the quark-meson coupling model and compact stars

The properties of neutron stars constituted of a crust of hadrons and an internal part of hadrons and kaon condensate are calculated within the quark-meson-coupling model. We have considered stars with nucleons only in the hadron phase and also stars with hyperons as well. The results are compared with the ones obtained from the non-linear Walecka model for the hadronic phase.Comment: 10 pages, 6 figure

Warm and dense stellar matter under strong magnetic fields

We investigate the effects of strong magnetic fields on the equation of state of warm stellar matter as it may occur in a protoneutron star. Both neutrino free and neutrino trapped matter at a fixed entropy per baryon are analyzed. A relativistic mean field nuclear model, including the possibility of hyperon formation, is considered. A density dependent magnetic field with the magnitude $10^{15}$ G at the surface and not more than $3\times 10^{18}$ G at the center is considered. The magnetic field gives rise to a neutrino suppression, mainly at low densities, in matter with trapped neutrinos. It is shown that an hybrid protoneutron star will not evolve to a low mass blackhole if the magnetic field is strong enough and the magnetic field does not decay. However, the decay of the magnetic field after cooling may give rise to the formation of a low mass blackhole.Comment: 17 pages, 10 figures, 3 tables, submitted to Phys. Rev.

Computer construction of platonic solids

In this paper we develop a novel method to generate a 3D geometrical model from 2D planer images. As an example of application, we construct 3D models of each one of the five platonic solids from their platonic graphs

Myxoid degeneration of leiomyoma-a masquerader

Uterine leiomyomas are one of the most common benign lesions in the uterus. The lesion can vary in size from a few millimetres to centimetres, location, its presentation and degeneration. They are easy to diagnose clinically with the help of available imaging techniques. Myxoid degeneration is an uncommon degeneration and has to be kept as a differential diagnosis as it mimics uterine sarcoma. Histopathology and Immunohistochemical analysis help in confirming the diagnosis. Here is a patient in reproductive age group who presented with rapidly growing abdominal mass in a span of 1 year with a prior surgical history of myomectomy. Pre-operative imaging was inconclusive for benign etiology and possibility of uterine leiomyosarcoma could not be ruled out. She was hence counselled for a laparotomy with a frozen section to prevent extensive surgery. Myxoid degeneration is not a common degeneration of leiomyoma with a reported incidence of 10% while the incidence of uterine leiomyosarcoma is less than 1% in reproductive age group. Even though rare, myxoid degeneration should be considered as a differential diagnosis of rapidly growing uterine mass with inconclusive pre-operative imaging

Environmental and Waste Management in Some Mining Operations in Orissa

This paper attempts to provide a survey on environmental parameters, viz. solids and liquids collected from five different mines in Orissa. These mines are (i) Dolomite Quarry, or Gomardih (Tisco) (ii) Fireclay Mines, Talabasta (Grind)(iii) Iron Ore Mines, Joribahal (Patnaik Minerals Pvt.Ltd.) (iv) Limestone Quarry,Lanjiherna (O CL) and (v) Graphite Mines, Patnagarh (T. Pradhan). The solid samples consisted of (a) top more often the undisturbed soil near the mine, (b) the overburdenlwastelspoilt dump, (c) soil from nearby paddyfield, (d) plantation area and (e) garden. These are analysed for agricultural parameters .such aspll, organic carbon content, available phosphate and potassium, heavy metals such as copper, lead, zinc, chromium etc. and bacterial count. The liquid sample consisted of water and effluent collected from (i) mine pit/flow both active and abandoned, (ii) mine discharge, (iii) mineral spring, (iv) accumulated water in mines, (v) piped water in mine office and residential colony and (vi) dug well used by mine workers. These samples were analysed for heavy metals similar to solid samples, physical parameters such as total suspended solids (TSS), total dissolved solids (TDS) and the bacterial count. The analysed results were compared with the standards set by the Bureau of Indian Standards (BIS) and Central Pollution Control Board (CPCB) and recommendations on pollution control measures and strategy by other means are made for better environmental management

Evaluation of gastrointestinal helminths in canine population of Bhubaneswar, Odisha, India: a public health appraisal

Aim: To evaluate the presence of gastrointestinal helminthic parasites in clinically apparent canines of Bhubaneswar, Odisha and to determine the risk of zoonotic infection to dog owners through questionnaire survey. Materials and Methods: A total of 154 dogs, with clinical signs of gastroenteritis were examined for the presence of helminthic ova and /or larvae in their faecal sample by direct smear and/ or floatation and centrifugation method. Prevalence was determined by sex wise, age wise, and breed wise. A structured questionnaire on 50 dog owners was designed to gather information on dog ownership, management and related risks on public health. Results: In the present investigation, the overall prevalence of gastrointestinal helminths infection was 41.46%. The infection rate was highest for mixed parasitic infection (26.57%) followed by Ancylostoma caninum (23.44%), Toxocara canis (20.31%) and lowest for Taenia spp. (3.13%). In relation to different groups, the prevalence was higher in male than female, highest in younger animals and it was shown a decreasing trend as age increased. It was also higher in non-descriptive breeds than pure and exotic breeds. Very few dog owners (10%) were conscious about that canine parasite could be transmitted to humans but none of them could provide correct information on the mode of transmission. Only 12 % dog owners had maintained standard deworming schedule. Conclusion: The findings showed that the high levels of ignorance among dog owners about canine helminthic parasites and transmission coupled with significant infection rates among the dogs in the community warrants immediate action needs to be taken to decrease infection rate in dogs and to raise awareness among the community about zoonotic diseases