3,520 research outputs found

    Galactic Nonlinear Dynamic Model

    Full text link
    We develop a model for spiral galaxies based on a nonlinear realization of the Newtonian dynamics starting from the momentum and mass conservations in the phase space. The radial solution exhibits a rotation curve in qualitative accordance with the observational data.Comment: 6 pages, 1 figure. Talk given in the 7th Alexander Friedmann International Seminar, June 29 to July 5, 2008, Joao Pessoa, PB, Brazi

    Neonatal meningitis associated with osteomyelitis and epidural empyema.

    Get PDF
    Neonatal meningitis is a serious disease with significant mortality and morbidity. Its signs and symptoms are subtle, non-specific, atypical or absent. Cephalohaematoma is frequent in newborns and complications are uncommon, including local infection after haematogenous spread in the setting of bacteraemia or meningitis with a possibility of osteomyelitis, epidural abscess and subdural empyema. We report the case of a late preterm newborn, with an unremarkable pregnancy, born by vacuum-assisted vaginal delivery that presented in the fifth day of life with irritability, fever and grunting. Cerebrospinal fluid and blood cultures were positive for Escherichia coli. The patient had neurological deterioration despite adequate antibiotic therapy and brain MRI showed a right parietal epidural empyema, subcutaneous abscess, osteomyelitis and supratentorial hydrocephalus. The culture of the cephalohaematoma's abscess material was positive for E coli. Antibiotic therapy was continued for 8 weeks. The child, now 2 years old, has spastic tetraparesis with global development delay

    Enterocolite necrosante: experiência de catorze anos

    Get PDF
    Backgound: Necrotizing enterocolitis ((NEC) is one of most frequent gastrointestinal emergencies in the neonatal period. Aims: To evaluate the incidência, epidemiology, risk factors and clinical outcomes of newborns with necrotizing enterocolitis admitted to a Level III Neonatal Intensive Care Unit (NICU) . Methods: Casuistic review of newborns with NEC adtmitted to a level III unit, from January 1995 to 31 December 2008. Results: Thirty nine patients were diagnosed: 0,8‰ of live birth, 1% of NICU admissions, 4% of very low birth weight (VLBW) and 9,5% of extremely low birth weight (ELBW) infants. Thirty eight (97%) were preterm and 85% had a gestational age (GA) of 31 weeks or less. Birth weight and GA were 1136±725g and 27,9±3,5 weeks. The prevalence for light for gestational age status was 20,5%. Forty four had blood transfusion and 36% received indomethacin treatment. Enteral feeding was started before the diagnosis of NEC in 37 (95%) newborns and 59% had breast milk feeding. NEC stage III occurred in 24 (61,5%), 67% of those had progression of milk intake < 20mg/Kg/d and 83% had rapid progression of milk intake (p=0,43). Nineteen (48,7%) were submitted to surgical intervention. The letality rate was 31%, 50% of NEC stage IIIB and 21,0% of surgical cases. Intestinal strictures and short bowel syndrome occurred in 2 cases, respectively. Conclusions: The incidence of NEC was 0,8‰ live births and 4% in VLBW. It is not possible to conclude about differences in incidence and severity of NEC with the rate of progression of milk intake

    Seleção de híbridos de Brachiaria humidicola com base na produtividade sob cortes.

    Get PDF
    Neste projeto tem-se por objetivo selecionar os melhores híbridos de B. humidicola por meio de cortes em pequenas parcelas

    Banco de dados geográfico da Estrada-Parque-Pantanal, MS: enfoque na atividade de pesca esportiva.

    Get PDF
    Esta publicação tem por objetivo: Gerar um protótipo de banco de dados georreferenciado sobre a Estrada-Parque-Pantanal para servir de modelo na organização e disponibilização de informações sobre essa unidade de conservação.bitstream/item/81189/1/DOC44.pd
    corecore