Energetic Substrates
Mostrando 1-12 de 19 artigos, teses e dissertações.
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1. The Surface Treatment of Niobium Superconducting Reentrant Cavities by Means of High Temperature Nitrogen Plasma Based Ion Implantation
High Temperature Nitrogen Plasma Based Ion Implantation (HT-NPBII) has been used to treat the surface of niobium superconducting reentrant cavities, which are part of parametric transducers in a resonant-mass gravitational wave detector. The aim is to enhance the corresponding electrical quality factors (Q-factors) which are closely related with the increase
Mat. Res.. Publicado em: 13/12/2019
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2. Mobilization of energetic substrates in the endangered catfish Steindachneridion parahybae (Siluriformes: Pimelodidae): changes in annual reproductive cycle in captivity
RESUMO O objetivo deste estudo foi analisar a composição do substrato energético (SE) nos principais tecidos de armazenamento de Steindachneridion parahybae, durante todo o ciclo reprodutivo em cativeiro. Diferentemente do ambiente natural, em cativeiro, a alimentação desses animais não é interrompida durante o período reprodutivo, as fêmeas não de
Neotrop. ichthyol.. Publicado em: 25/06/2018
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3. Aspectos metabólicos e endócrinos do ciclo reprodutivo de cecílias dermatófagas Siphonops annulatus (Amphibia, Gymnophiona, Caeciliidae) mantidas em cativeiro / Metabolic and endocrinology aspects of the reproductive cycle of dermatophagic caecilians Siphonops annulatus (Amphibia, Gymnophiona, Caeciliidae) maintained in captivity
De uma forma geral, animais ovíparos suprem sua prole somente com vitelo, composto principalmente por lipídios e proteínas. Em espécies de cecílias ovíparas e dermatófagas, as fêmeas mobilizam esses substratos energéticos para os ovários durante a vitelogênese e também utilizam esses mesmos compostos para a produção de uma pele mais espessa e n
Publicado em: 2010
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4. Alterações metabólicas ao longo da ontogenia das larvas de cachara (Pseudoplatystoma reticulatum Siluriforme, Pimelodidae, Linnaeus, 1776) e do híbrido / Metabolic alteration during the ontogeny of the cachara larvae (Pseudoplatystoma reticulatum Siluriforme, Pimelodidae, Linnaeus, 1776) and the hybrid
O ciclo de vida de muitos organismos inclui um estágio larval de desenvolvimento que é morfologicamente distinto do adulto. Durante o período embrionário e larval os processos dominantes mais importantes são: crescimento, diferenciação de tecidos e/ou alterações fisiológicas, acompanhadas de mudanças nas exigências nutricionais, e mobilização d
Publicado em: 2010
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5. Influência da temperatura no crescimento e nas respostas fisiológicas do Surubim do Paraíba Steindachneridion parahybae (Siluriformes: Pimelodidae) criados em cativeiro / Influence of temperature in growth and physiological responses in Surubem dy Paraíba Steindachneridion parahybae (Siluriformes: Pimelodidae) in captivity
As mudanças climáticas devido às ações antrópicas tendem a alterar diversos fatores ambientais, entre eles a temperatura. Um recente prognóstico sobre a elevação da temperatura menciona que em uma escala otimista a temperatura na Terra se elevará em 1.8 graus C até 2100. Esta alteração pode causar diversas modificações nos processos fisiológi
Publicado em: 2010
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6. In vitro degradation dynamics of neutral detergent fiber of signal grass according to supplementation with different sources of nitrogenous compounds and carbohydrates / Dinâmica de degradação in vitro da fibra em detergente neutro de capim-braquiária em função de suplementação com diferentes fontes de compostos nitrogenados e carboidratos
Two experiments were carried out to evaluate the utilization of fibrous carbohydrates from high quality grass by ruminal microorganisms. In the first experiment, it was studied the degradation dynamics of neutral detergent fiber (NDF) from high quality signal grass (Brachiaria decumbens Stapf.) according to supplementation with different sources of carbohydr
Publicado em: 2007
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7. VALOR ALIMENTAR DO FENO DE TIFTON 85 (Cynodon sp.) COM OU SEM SUPLEMENTAÇÃO COM URÉIA, CASEÍNA OU FARINHA DE MANDIOCA
To evaluate the effect of supplement type on nutritional value of diets based on a low-quality forage, ten Polwarth × Texel lambs (mean LW of 21 3 kg), housed in metabolic cages, fed ad libitum with a grass hay (Cynodon sp.) cut with 90 days of regrowth age, were used in a double 5 x 5 Latin Square experiment. Supplements tested were urea (U), cassava meal
Publicado em: 2006
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8. Inter-relação entre as vias de transmissão do sinal de insulina e leptina em hipotalamo e figado de ratos
Insulin and leptin have overlapping effects in the control of energy homeostasis and glucose metabolism, but the molecular basis of this synergism is unknown. Insulin signals through a receptor tyrosine kinase that phosphorylates and activates the docking proteins IRSs (insulin receptor substrates), whereas the leptin receptor and its associated protein tyro
Publicado em: 2002
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9. Guanylyl cyclase is an ATP sensor coupling nitric oxide signaling to cell metabolism
Defending cellular integrity against disturbances in intracellular concentrations of ATP ([ATP]i) is predicated on coordinating the selection of substrates and their flux through metabolic pathways (metabolic signaling), ATP transfer from sites of production to utilization (energetic signaling), and the regulation of processes consuming energy (cell signalin
National Academy of Sciences.
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10. Degrons in protein substrates program the speed and operating efficiency of the AAA+ Lon proteolytic machine
AAA+ proteases are ATP-fueled machines that bind protein substrates via a degradation tag, unfold the molecule if necessary, and then translocate the polypeptide into a chamber for proteolysis. Tag recognition is normally viewed as a passive reaction. By contrast, for the AAA+ Lon protease, we show that degron tags are also regulatory elements that determine
National Academy of Sciences.
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11. Bioenergetic Aspects of Halophilism
Examinination of microbial diversity in environments of increasing salt concentrations indicates that certain types of dissimilatory metabolism do not occur at the highest salinities. Examples are methanogenesis for H2 + CO2 or from acetate, dissimilatory sulfate reduction with oxidation of acetate, and autotrophic nitrification. Occurrence of the different
American Society for Microbiology.
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12. Direct measurement of oligonucleotide substrate binding to wild-type and mutant ribozymes from Tetrahymena.
Like protein enzymes, RNA enzymes (ribozymes) provide specific binding sites for their substrates. We now show that equilibrium dissociation constants for complexes between the Tetrahymena ribozyme and its RNA substrates and products can be directly measured by electrophoresis in polyacrylamide gels containing divalent cations. Binding is 10(3)- to 10(4)-fol