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Search Results: 1 - 10 of 560741 matches for " Israel H.A.;OGAWA "
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Decomposition of trimethylamine oxide related to the use of sulfites in shrimp
CINTRA, Israel H.A.;OGAWA, Norma B.P.;SOUZA, Maria R.;DINIZ, Fábio M.;OGAWA, Masayoshi;
Ciência e Tecnologia de Alimentos , 1999, DOI: 10.1590/S0101-20611999000300003
Abstract: currently, sulfites are employed on board to inhibit melanosis (blackspot) on crustaceans. however, when used in excess this chemical compound not only can cause adverse reactions in so2-sensitive individuals, but also favors the decomposition of trimethylamine oxide (tmao) into dimethylamine (dma) and formaldehyde (fa), thus compromising the quality of the product, which can be observed mainly through the texture change of the meat after cooking. this study was conducted to verify the increase of the contents of dma and fa by the excessive use of sodium metabisulfite in white shrimp (penaeus schmitti). for laboratory trials, shrimp were beheaded, washed and immersed in a 2% sodium metabisulfite solution for 10 minutes. specimens were stored either on ice and maintained for 48 hours in refrigeration, or stored in a freezer for 48 hours. samples were collected at intervals of 0, 24 and 48 hours, and analyzed for residual so2, tmao, tma, dma and fa. the immersion of shrimp in a 2% sodium metabisulfite for 10 minutes favored the decomposition of tmao which greatly increased the contents of dma and fa. the fa and dma measured in fresh shrimp was low. moreover, the storage of shrimp tails on ice resulted in a significant reduction of the tma, dma, fa and residual so2 contents compared to the specimens under frozen storage.
Decomposition of trimethylamine oxide related to the use of sulfites in shrimp
CINTRA Israel H.A.,OGAWA Norma B.P.,SOUZA Maria R.,DINIZ Fábio M.
Ciência e Tecnologia de Alimentos , 1999,
Abstract: Currently, sulfites are employed on board to inhibit melanosis (blackspot) on crustaceans. However, when used in excess this chemical compound not only can cause adverse reactions in SO2-sensitive individuals, but also favors the decomposition of trimethylamine oxide (TMAO) into dimethylamine (DMA) and formaldehyde (FA), thus compromising the quality of the product, which can be observed mainly through the texture change of the meat after cooking. This study was conducted to verify the increase of the contents of DMA and FA by the excessive use of sodium metabisulfite in white shrimp (Penaeus schmitti). For laboratory trials, shrimp were beheaded, washed and immersed in a 2% sodium metabisulfite solution for 10 minutes. Specimens were stored either on ice and maintained for 48 hours in refrigeration, or stored in a freezer for 48 hours. Samples were collected at intervals of 0, 24 and 48 hours, and analyzed for residual SO2, TMAO, TMA, DMA and FA. The immersion of shrimp in a 2% sodium metabisulfite for 10 minutes favored the decomposition of TMAO which greatly increased the contents of DMA and FA. The FA and DMA measured in fresh shrimp was low. Moreover, the storage of shrimp tails on ice resulted in a significant reduction of the TMA, DMA, FA and residual SO2 contents compared to the specimens under frozen storage.
Proposi??o de uma reserva anatomofuncional, no canal raquidiano, como fator interferente na fisiopatologia das lombalgias e lombociatalgias mecanico-degenerativas
Cecin, H.A.;
Revista da Associa??o Médica Brasileira , 1997, DOI: 10.1590/S0104-42301997000400005
Abstract: objective. to test the hipothesis of an anatomic and functional reserve in the spinal canal that explains the radiological changes in lumbar spine of asymptomatic individuals, the differences in modalities of clinical presentation and the discrepancies in the prevalence of mechanical and degenerative low back pain and sciaticas. cases and methods.. two groups of 27 persons were submitted to computed axial tomography. in one group, the patients presented low back pain and/or sciaticas. the other formed by matched controlls, showed no signs or symptoms. the bony canal area, dural sac area, interfacets distance and lateral recesses depth were quantitative assessed. results. the asymptomatics ones had larger bony canals than the acute and chronic patients, due to statistical significant differences. the ranges responsible for these differences and whose averages had higher figures in the asymptomatics ones in relation to the chronic patients, were the bony canal areas at l3-l4, l4-l5, the dural sac area and lateral recesses depth at l4-l5; in relation to acute ones: the bony canal areas at l3-l4, l4-l5, l5-s1, dural sac area at l4-l5, l5-s1, and sagittal diameter l5-s1 and lateral recesses depth at l4-l5. conclusions. the radiological changes in asymptomatic ones, the lack of symptoms in the control group, the presence of chronic and acute features and the discrepancies in the prevalence of low back pain were attributed to the existence of an anatomic and functional reserve. this reserve would be determined by the presence of a "safety factor" which would have differential distribution in asymptomatics, acute and chronic. it would be the element able to influence the presence or absence of low back pain in persons with radiological changes
ICT and Long Run Growth in Nigeria (1970-2008)
H.A. Adefeso
Journal of Economics Theory , 2012, DOI: 10.3923/jeth.2011.71.74
Abstract: This study empirically established the relationship between ICT and long run economic growth in Nigeria using Residual-based Engle-Granger-Dickey-Fuller cointegration test. The source of the data was mainly CBN statistical bulletin. The time series properties of the variable were investigated by conducting a unit root test using annual series data for the period 1970-2008 and found that variables employed were I(1) series with I(0) residual. The result was consistent with the previous results on ICT-growth analysis which revealed a productive contribution of ICT to economic activity in Nigeria. About 1% change in ICT component will lead to a 86% change in the mean of Gross Domestic Product (GDP) over the period of study. The implication of this for the policy makers is that firms and government should increase their budgets allocation on ICT in Nigeria.
AN ALTERNATIVE MODEL FOR OPTIMISING PAYLOADS OF BUILDING GLASS
H.A. Taha
South African Journal of Industrial Engineering , 2012,
Abstract: ENGLISH ABSTRACT: This article deals with the development of a multi-stage model for optimising payload placement on a hauler-trailer rig in an environment described by physical and regulatory constraints. The model which purports to be an improvement on an earlier model provides two types of solution i.e. a feasible solution which satisfies all zone loading and axle weight constraints, or an infeasible solution giving the cause and quantification of source(s) of infeasibility which may be used to modify model inputs for further attempts at optimisation. AFRIKAANSE OPSOMMING: Die artikel handel oor die ontwikkeling van 'n multistadiummodel vir die optimisering van vragplasing op 'n sleepwa onder fisiese en regsvoorskriftelike voorwaardes. Die model wat daarop aanspraak maak dat dit 'n verbetering is op 'n vorige model, lewer as uitset twee oplossingstipes naamlik 'n gangbare oplossing wat alle sone- en aslasrandvoorwaardes eerbiedig, of 'n ongangbare oplossing wat oorsaak en kwantifisering van ongangbaarheidsbronne uitwys vir die gebruik van gewysigde modelinsette by verdere pogings tot optimisering.
Concentric dualism as transition between a lineal and cyclic representation of life and death in Scandinavian mythology
H.A. Molenaar
Bijdragen tot de Taal-, Land- en Volkenkunde , 1982,
Abstract:
Korte Signaleringen
H.A. Poeze
Bijdragen tot de Taal-, Land- en Volkenkunde , 1988,
Abstract:
Korte Signaleringen
H.A. Poeze
Bijdragen tot de Taal-, Land- en Volkenkunde , 1992,
Abstract:
Evaluation of academic research productivity: necessity for, some methods and indicators of productivity
H.A. Labuschagne
Koers : Bulletin for Christian Scholarship , 1988, DOI: 10.4102/koers.v53i4.896
Abstract: The ex tent of funds invested in research and the increasing dependency of society on research evoke public interest to which politicians have to listen.
Opportunities for sustainable development of cities and industrial zones in Bulgaria
H.A. Krachunov
Marketing ì Mened?ment Innovacìj , 2011,
Abstract: The article deals with the possibilities of sustainable urban development through the formation of integrated plans for urban planning and development.
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