934 resultados para Electronic Tendering, Secure E-Commerce


Relevância:

20.00% 20.00%

Publicador:

Resumo:

In this study we report on the electronic and vibrational (hyper)polarizabilities of donor–acceptorsubstituted azobenzene. It is observed that both electronic and vibrational contributions to the electricdipole first hyperpolarizability of investigated photoactive molecule substantially depend on the conformation. The contributions to the nuclear relaxation first hyperpolarizability are found to be quite important in the case of two considered isomers (cis and trans). Although the double-harmonic term is found to be the largest in terms of magnitude, it is shown that the total value of the nuclear relaxation contribution to vibrational first hyperpolarizability is a result of subtle interplay of higher-order contributions. As a part of the study, we also assess the performance of long-range-corrected densityfunctional theory in determining vibrational contributions to electric dipole (hyper)polarizabilities. In most cases, the applied long-range-corrected exchange correlation potentials amend the drawbacks of their conventional counterparts

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Blood bankers have focused their energy to secure blood transfusion, and only recently have studies been published on the effect of blood donation on iron metabolism. In many facilities, hemoglobin measurement is only performed just before or even during blood donation, but the determination of iron stores is largely ignored. The 2013 paradox of transfusion medicine is due to the fact that blood donation may be harmful and leads to iron deficiency with or without anemia, but for other individuals, it may be a healthy measure preventing type 2 diabetes. The purpose of this review is to discuss iron metabolism in the perspective of blood donation, notably regarding their possible genetic profiles that eventually will discriminate "good" iron absorbers from "bad" iron responders.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

En aquest treball de fi de carrera s¿intentarà implementar un escenari segur client-servidor que utilitzi un proveïdor d¿identitat extern per efectuar les validacions relatives a la identitat i permisos associats d¿un client a l¿hora d¿accedir a un recurs, allotjat en un  proveïdor de serveis.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Gestor de continguts per a comerços electrònics desenvolupat en Java EE.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

BACKGROUND: Up to now, the different uptake pathways and the subsequent intracellular trafficking of plasmid DNA have been largely explored. By contrast, the mode of internalization and the intracellular routing of an exogenous mRNA in transfected cells are poorly investigated and remain to be elucidated. The bioavailability of internalized mRNA depends on its intracellular routing and its potential accumulation in dynamic sorting sites for storage: stress granules and processing bodies. This question is of particular significance when a secure transposon-based system able to integrate a therapeutic transgene into the genome is used. Transposon vectors usually require two components: a plasmid DNA, carrying the gene of interest, and a source of transposase allowing the integration of the transgene. The principal drawback is the lasting presence of the transposase, which could remobilize the transgene once it has been inserted. Our study focused on the pharmacokinetics of the transposition process mediated by the piggyBac transposase mRNA transfection. Exogenous mRNA internalization and trafficking were investigated towards a better apprehension and fine control of the piggyBac transposase bioavailability. RESULTS: The mRNA prototype designed in this study provides a very narrow expression window of transposase, which allows high efficiency transposition with no cytotoxicity. Our data reveal that exogenous transposase mRNA enters cells by clathrin and caveolae-mediated endocytosis, before finishing in late endosomes 3 h after transfection. At this point, the mRNA is dissociated from its carrier and localized in stress granules, but not in cytoplasmic processing bodies. Some weaker signals have been observed in stress granules at 18 h and 48 h without causing prolonged production of the transposase. So, we designed an mRNA that is efficiently translated with a peak of transposase production 18 h post-transfection without additional release of the molecule. This confines the integration of the transgene in a very small time window. CONCLUSION: Our results shed light on processes of exogenous mRNA trafficking, which are crucial to estimate the mRNA bioavailability, and increase the biosafety of transgene integration mediated by transposition. This approach provides a new way for limiting the transgene copy in the genome and their remobilization by mRNA engineering and trafficking.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

The FY04 Performance Report for the Iowa Utilities Board (IUB) highlights the services the IUB provided to Iowans, along with results achieved to ensure utility service reliability and to improve and expand utility service infrastructure in Iowa. This information is provided in accordance with the State of Iowa Accountable Government Act, Iowa Code chapter 8E. The two basic business functions of the IUB are utility regulation and compliance, and resource management. This report covers performance information for both of these areas.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Aquest projecte tracta de la millora de l’actual sistema d’importació que disposa Magento. Actualment per importar els productes a una botiga Magento es necessita treballar amb un fitxer csv on s’introdueix una gran quantitat de dades i requereix una gran quantitat de temps i esforç per part de l’empresa. Per millorar l’actual sistema, es proposa crear una integració entre Magento i Google Docs, fent que tots els productes que es vulguin importar s’introdueixin en un full de càlcul Google Docs i s’importin a la botiga Magento.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Creació d'una plataforma de comerç electrònic que ofereix recomanacions als clients potencials tenint en compte les accions de la resta d'usuaris, així com les preferències indicades pel client al seu perfil.