Production Of 123i
Mostrando 1-12 de 19 artigos, teses e dissertações.
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1. Desenvolvimento e implementação de um novo sistema pneumático de transferência para irradiação de materiais no reator IEA-R1 / Development and implementation of a new pneumatic transfer system for materials irradiation at IEA-R1 reactor
Pneumatic Transfer Systems (PTS) are classified as mechanical equipment largely operated all over the world for transport of a huge sort of objects, samples and materials located at nearly terminals or even at separated ones. System applicability is often recognized in many activities, such as medicine (hospital settings, clinical analysis labs), industry (s
Publicado em: 2011
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2. Alterations in the Renin-Angiotensin System in the contralateral carotid artery after balloon catheter injury / Alterações do Sistema Renina-Angiotensina na artéria carótida contralateral à lesão por cateter balão
Fifteen days after balloon catheter injury Emax of Ang II was increased in the contralateral artery as compared to values obtained in arteries from intact animals. This increase in Ang II Emax was not modified in the absence of the endothelium. The morphological and morphometric characteristics in the contralateral artery were not altered as compared to cont
Publicado em: 2010
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3. Co-produtos da extração de óleo de sementes de mamona e de girassol na alimentação de ruminantes / Co-products of castor seed and sunflower seed oil extraction in ruminant feeding
A expectativa de crescimento gradual da participação do biodiesel na matriz energética mundial, cria necessidade de estudos sobre a utilização dos co-produtos gerados pela cadeia produtiva. Neste sentido, propõe-se avaliar os co- produtos da extração de óleo de sementes de mamona (Ricinus communis L.) e de girassol (Helianthus annuus L.) na alimenta
Publicado em: 2008
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4. EmbriogÃnese somÃtica e isolamento de protoplastos de pequizeiro / Somatic embryogenesis and protoplast isolation of Caryocar brasiliense CAMB.
The Caryocar brasiliense is one of the native fruit species from Cerrado with higher economical, ecological and social importance. In the last decades, large land extensions in the â Cerrado â has been used for agricultural system. This fact associated with a natural low regeneration rate has caused the reduction in natural populations of the species. Base
Publicado em: 2007
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5. STUDY OF IMPORTANT PARAMETERS ON THE IRRADIATION OF 124Xe, TO IMPROVE THE PRODUCTION OF 123I WITH HIGH PURITY USING THE CYCLONE-30 CYCLOTRON AT IPEN-CNEN/SP / Estudo de parâmetros relevantes na irradiação de 124-Xe, visando a otimização na obtenção de 123-I ultra puro no Ciclotron Cyclone-30 do IPEN-CNEN/SP
The development of diagnosis equipment and therapy procedures in nuclear medicine depends on the availability of commercial radioisotopes. IPEN is the most important institution that provides radioisotopes for national market. In order to achieve this function, IPEN had invested in the acquisition of a 30 MeV Cyclone-30 cyclotron to produce mainly 18F, 67Ga,
Publicado em: 2006
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6. Efeitos das condições de armazenagem sobre a qualidade da soja (Glycine max (L.) Merrill) e do óleo bruto / Effects of storage conditions on the quality of soybean grains (Glycine max (L.) Merrill) and crude oil
Brazil s 2005/06-grain production is forecast at approximately 123 million tons. Of this total, Brazil should produce 57 million tons of soybean grains, i.e., 46% of the national production. Brazilian agricultural production, however, needs to meet the international demands in order to gain foreign markets, maintaining good quality of grains is therefore ess
Publicado em: 2006
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7. Identification and localization of a gene that specifies production of Escherichia coli DNA topoisomerase I.
A gene that specifies production of Escherichia coli DNA topoisomerase I (omega protein) was identified with the aid of a radioimmunoassay for this protein. E. coli DNA topoisomerase I was produced by Salmonella typhimurium merodiploids that harbored E. coli plasmid F' 123, but not by strains that lost this plasmid. Analysis of strains with spontaneous delet
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8. Anti-cell surface monoclonal antibodies which antagonize the action of VIP in a human adenocarcinoma cell line (HT 29 cells).
Hybridoma cells have been obtained by fusing RCY 3 Ag 1-2-3 rat myeloma cells with spleen cells from a rat hyperimmunized with human adenocarcinoma cells (HT 29 cell line) grown in serum-free medium. Immunoglobulins secreted by hybridomas were screened for: (i) specific binding to HT 29 cells; (ii) their ability to inhibit the binding of [125I]-vasoactive in
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9. Hydroxyurea enhances fetal hemoglobin production in sickle cell anemia.
Hydroxyurea, a widely used cytotoxic/cytostatic agent that does not influence methylation of DNA bases, increases fetal hemoglobin production in anemic monkeys. To determine its effect in sickle cell anemia, we treated two patients with a total of four, 5-d courses (50 mg/kg per d, divided into three oral doses). With each course, fetal reticulocytes increas
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10. Growth hormone-releasing hormone antagonist MZ-4-71 inhibits in vivo proliferation of Caki-I renal adenocarcinoma
In view of evidence that growth hormone (GH) and insulin-like growth factors (IGF) may play a role in the development of renal cell carcinoma (RCC), we investigated the effects of growth hormone-releasing hormone (GH-RH) antagonist MZ-4-71 on the proliferation of the human renal adenocarcinoma cell line Caki-I in vitro and in vivo. Male nude mice bearing xen
The National Academy of Sciences of the USA.
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11. Direct evidence that oxygen-derived free radicals contribute to postischemic myocardial dysfunction in the intact dog.
Electron paramagnetic resonance (EPR) spectroscopy was used to investigate whether (i) the free radicals produced in the "stunned" myocardium (myocardium with postischemic contractile dysfunction) are derived from O2, (ii) inhibition of radical reactions improves function, and (iii) i.v. spin traps are effective. Open-chest dogs undergoing a 15-min coronary
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12. Vasoactive intestinal peptide: A potent stimulator of adenosine 3′:5′-cyclic monophosphate accumulation in gut carcinoma cell lines in culture*
Vasoactive intestinal peptide (VIP) is a potent and efficient stimulator of adenosine 3′:5′-cyclic monophosphate (cAMP) accumulation in a human colon carcinoma cell line, HT 29. cAMP accumulation is sensitive to a concentration of VIP as low as 3×10-12 M. Maximum VIP-induced cAMP levels were observed with 10-9 M VIP and are about 200 times above the bas