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1.
Comput Electr Eng ; 101: 108117, 2022 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-35645427

RESUMO

In today's world, the most prominent public issue in the field of medicine is the rapid spread of viral sickness. The seriousness of the disease lies in its fast spreading nature. The main aim of the study is the proposal of a framework for the earlier detection and forecasting of the COVID-19 virus infection amongst the people to avoid the spread of the disease across the world by undertaking the precautionary measures. According to this framework, there are four stages for the proposed work. This includes the collection of necessary data followed by the classification of the collected information which is then taken in the process of mining and extraction and eventually ending with the process of decision modelling. Since the frequency of the infection is very often a prescient one, the probabilistic examination is measured as a degree of membership characterised by the fever measure related to the same. The predictions are thereby realised using the temporal RNN. The model finally provides effective outcomes in the efficiency of classification, reliability, the prediction viability etc.

2.
J Environ Biol ; 37(6): 1255-63, 2016 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-29257634

RESUMO

Ethanol production from sugarcane molasses yields large volume of highly colored spent wash as effluent. This color is imparted by the recalcitrant melanoidin pigment produced due to the Maillard reaction. In the present work, decolourization of melanoidin was carried out using activated carbon prepared from pepper stem (Piper nigrum). The interaction effect between parameters were studied by response surface methodology using central composite design and maximum decolourization of 75 % was obtained at pH 7.5, Melanoidin concentration of 32.5 mg l-1 with 1.63 g 100ml-1 of adsorbent for 2hr 75min. Artificial neural networks was also used to optimize the process parameters, giving 74 % decolourization for the same parameters. The Langmuir and Freundich isotherms were applied for describing the biosorption equilibrium. The process was represented by the Langmuir isotherm with a correlation coefficient of 0.94. The first-order, second-order models were implemented for demonstrating the biosorption mechanism and, as a result, Pseudo second order model kinetics fitted best to the experimental data. The estimated enthalpy change (DH) and entropy change (DS) of adsorption were 32.195 kJ mol-1 and 115.44 J mol-1 K which indicates that the adsorption of melanoidin was an endothermic process. Continuous adsorption studies were conducted under optimized condition. The breakthrough curve analysis was determined using the experimental data obtained from continuous adsorption. Continuous column studies gave a breakthrough at 182 mins and 176 ml. It was concluded that column packed with Piper nigrum based activated carbon can be used to remove color from distillery spent wash.


Assuntos
Resíduos Industriais/análise , Redes Neurais de Computação , Piper nigrum/química , Eliminação de Resíduos Líquidos/métodos , Adsorção , Indústria Alimentícia , Polímeros/química , Termodinâmica
3.
ScientificWorldJournal ; 2015: 581463, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-26491716

RESUMO

Distillery industry is recognized as one of the most polluting industries in India with a large amount of annual effluent production. In this present study, the optimization of electrochemical treatment process variables was reported to treat the color and COD of distillery spent wash using Ti/Pt as an anode in a batch mode. Process variables such as pH, current density, electrolysis time, and electrolyte dose were selected as operation variables and chemical oxygen demand (COD) and color removal efficiency were considered as response variable for optimization using response surface methodology. Indirect electrochemical-oxidation process variables were optimized using Box-Behnken response surface design (BBD). The results showed that electrochemical treatment process effectively removed the COD (89.5%) and color (95.1%) of the distillery industry spent wash under the optimum conditions: pH of 4.12, current density of 25.02 mA/cm(2), electrolysis time of 103.27 min, and electrolyte (NaCl) concentration of 1.67 g/L, respectively.


Assuntos
Destilação , Eletroquímica/métodos , Resíduos Industriais/análise , Eliminação de Resíduos Líquidos , Purificação da Água/métodos , Análise de Variância , Análise da Demanda Biológica de Oxigênio , Cor , Eletricidade , Eletrólise , Eletrólitos/análise , Concentração de Íons de Hidrogênio , Análise de Regressão , Fatores de Tempo
4.
Biochem Biophys Res Commun ; 276(3): 1048-55, 2000 Oct 05.
Artigo em Inglês | MEDLINE | ID: mdl-11027588

RESUMO

To study the mode of action of the binary toxin (51- and 42-kDa) of Bacillus sphaericus, amino acid residues were substituted at selected sites of the N- and C-terminal regions of both peptides. Bioassay results of the mutant binary toxins tested against mosquito larvae, Culex quinquefasciatus, revealed that most of the substitutions made on both peptides led to either decrease or total loss of the activity. Furthermore, receptor binding studies carried out for some of the mutants of the 42-kDa peptide showed mutations in N- and C-terminal regions of the 42-kDa peptide did not affect the binding of the binary toxin to brush border membrane vesicles of mosquito larvae. One of the mutants having a single amino acid substitution at the C-terminal region ((312)R) of the 42-kDa peptide completely abolished the biological activity, implicating the role of this residue in membrane pore formation. These results indicate the importance of the C-terminal region of the 42-kDa of binary toxin, in general, and particularly the residue (312)R for biological activity against mosquito larvae.


Assuntos
Bacillus/química , Toxinas Bacterianas/química , Toxinas Bacterianas/toxicidade , Culex/efeitos dos fármacos , Larva/efeitos dos fármacos , Mutagênese Sítio-Dirigida , Animais , Toxinas Bacterianas/genética , Toxinas Bacterianas/metabolismo , Ligação Competitiva , Bioensaio , Vesículas Citoplasmáticas/metabolismo , Teste de Complementação Genética , Larva/citologia , Microvilosidades/metabolismo , Peso Molecular , Mutação/genética , Fragmentos de Peptídeos/química , Fragmentos de Peptídeos/genética , Fragmentos de Peptídeos/isolamento & purificação , Fragmentos de Peptídeos/metabolismo , Ligação Proteica , Termodinâmica
5.
J Biol Chem ; 275(29): 21809-12, 2000 Jul 21.
Artigo em Inglês | MEDLINE | ID: mdl-10825151

RESUMO

Hedgehog (Hh) signal transduction requires a large cytoplasmic multi-protein complex that binds microtubules in an Hh-dependent manner. Here, we show that three members of this complex, Costal2 (Cos2), Fused (Fu), and Cubitus interruptus (Ci), bind each other directly to form a trimeric complex. We demonstrate that this trimeric signaling complex exists in Drosophila lacking Suppressor of Fused (Su(fu)), an extragenic suppressor of fu, indicating that Su(fu) is not required for the formation, or apparently function, of the Hh signaling complex. However, we subsequently show that Su(fu), although not a requisite component of this complex, does form a tetrameric complex with Fu, Cos2, and Ci. This additional Su(fu)-containing Hh signaling complex does not appear to be enriched on microtubules. Additionally, we demonstrate that in response to Hh Ci accumulates in the nucleus without its various cytoplasmic binding partners, including Su(fu). We discuss a model in which Su(fu) and Cos2 each bind to Fu and Ci to exert some redundant effect on Ci such as cytoplasmic retention. This model is consistent with genetic data demonstrating that Su(fu) is not required for Hh signal transduction proper and with the elaborate genetic interactions observed among Su(fu), fu, cos2, and ci.


Assuntos
Proteínas de Ligação a DNA/fisiologia , Proteínas de Drosophila , Cinesinas/fisiologia , Proteínas Serina-Treonina Quinases/fisiologia , Transdução de Sinais , Animais , Proteínas de Ligação a DNA/química , Dimerização , Drosophila , Proteínas Hedgehog , Proteínas de Insetos/química , Proteínas de Insetos/fisiologia , Cinesinas/química , Proteínas Serina-Treonina Quinases/química , Fatores de Transcrição/química , Fatores de Transcrição/fisiologia
6.
Appl Environ Microbiol ; 64(2): 756-9, 1998 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-9464418

RESUMO

Alanine residues were substituted by site-directed mutagenesis at selected sites of the N- and C-terminal regions of the binary toxin (51- and 42-kDa peptides) of B. sphaericus 1593M, and the mutant toxins were cloned and expressed in Escherichia coli. Bioassays with mosquito larvae, using binary toxins derived from individual mutants, showed that the substitution of alanine at some sites in both the 51-kDa and the 42-kDa peptides resulted in a total loss of activity. Surprisingly, after mixing two nontoxic derivatives of the same peptide, i.e., one mutated at the N-terminal end and the other mutated at the C-terminal end of either the 51-kDa or the 42-kDa peptide, the toxicity was restored. This result indicates that the altered binary toxins can functionally complement each other by forming oligomers.


Assuntos
Bacillus/patogenicidade , Toxinas Bacterianas/farmacologia , Controle de Mosquitos , Animais , Toxinas Bacterianas/química , Culicidae , Peso Molecular , Mutagênese Sítio-Dirigida , Mutação , Relação Estrutura-Atividade
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