RESUMO
A Linear Programming model has been constructed which aids in selecting appropriate crops for CELSS (Controlled Environment Life Support System) food production. A team of Controlled Environment Agriculture (CEA) faculty, staff, graduate students and invited experts representing more than a dozen disciplines, provided a wide range of expertise in developing the model and the crop production program. The model incorporates nutritional content and controlled-environment based production yields of carefully chosen crops into a framework where a crop mix can be constructed to suit the astronauts' needs. The crew's nutritional requirements can be adequately satisfied with only a few crops (assuming vitamin mineral supplements are provided) but this will not be satisfactory from a culinary standpoint. This model is flexible enough that taste and variety driven food choices can be built into the model.
Assuntos
Produtos Agrícolas , Dieta , Sistemas Ecológicos Fechados , Ambiente Controlado , Sistemas de Manutenção da Vida/estatística & dados numéricos , Humanos , Modelos Lineares , Necessidades Nutricionais , Valor Nutritivo , Software , Voo EspacialRESUMO
The study was undertaken to establish the clinical and immunological aspects of HBV-mediated membranous glomerulonephritis in children. Out of 54 children with membranous GN treated in the Children's Memorial Hospital 51 children (94.4%) had the disease related to HBV infection. The inhibitory effect of immune complexes: HBsAg-IgG and HBeAg-IgG, isolated from sera of these children on lymphocyte proliferation of blood donors was observed. This may partly explain the status of immune tolerance towards HBV in the infected children.
Assuntos
Glomerulonefrite Membranosa/etiologia , Hepatite B/complicações , Adolescente , Criança , Pré-Escolar , Feminino , Glomerulonefrite Membranosa/imunologia , Glomerulonefrite Membranosa/patologia , Anticorpos Anti-Hepatite B/sangue , Antígenos da Hepatite B , Humanos , Imunidade Celular , Interleucina-2/biossíntese , Ativação Linfocitária , MasculinoRESUMO
In a man aged 28 years abdominal pains with constipation appeared, and were followed after 2 weeks by generalized maximal epileptic seizures, gradually progressing signs of proximal polyneuropathy, numerous brownish patches on the face and trunk, and hepatomegaly. In the urine raised levels were found of delta aminolaevulinic acid, prophobilinogen, coproporphyrins and uroporphyrins. Examination of stools demonstrated an increase of protoporphyrins and coproporphyrins, with prevalence of the former, characteristic of porphyria variegata. A gradual regression of changes was observed after treatment with high doses of propranolol and intravenous glucose infusions.
