Search results for "InSe"

Novel nanocrystalline cores for EMI suppression in cables: characterization methodology and performance study

2021

El control de las interferencias electromagnéticas (EMI) en dispositivos electrónicos es un problema cada vez mayor al que se enfrentan los diseñadores para garantizar que los dispositivos cumplan con los requisitos de compatibilidad electromagnética (EMC) para operar simultáneamente sin inferir entre sí. Este hecho se debe a la tendencia hacia una mayor integración de componentes, la reducción del tamaño y grosor de las placas de circuito impreso (PCB) y la miniaturización de las carcasas de los dispositivos. Además, otros factores como el empleo de frecuencias de conmutación más altas en los convertidores de potencia y las velocidades de datos de comunicación en los circuitos digitales. C…

Le ricerche di Aldo Visalberghi in campo didattico

2021

Il capitolo presenta gli interessi principali di studio e di ricerca di Aldo Visalberghi, preceduti da una breve parentesi biografica: delinea alcuni aspetti del pensiero di John Dewey quali fonti di ispirazione del pedagogista triestino; descrive la pedagogia esperienziale come sapere didattico-educativo da lui sostenuto; sintetizza il suo interesse per la valutazione nel processo educativo; descrive le variabili del condizionamento sociale nell’educazione scolastica da lui individuate; rileva la dimensione formativa della ricerca da lui valorizzata; evidenzia il valore sociale che Visalberghi attribuiva all’insegnamento e all’apprendimento; sottolinea il carattere ludiforme che egli asseg…

Employability and Job Insecurity:Supporting Individuals to Achieve Career Success in the WhiteWater Environment

2019

El rápido ritmo de la cuarta revolución industrial de hoy, junto con la inestabilidad económica y la competitividad global, han resultado en cambios organizativos generalizados y en una creciente inseguridad laboral. Reconociendo que la inseguridad laboral continuará intensificándose en los años venideros, esta investigación, a través de tres estudios, tiene como objetivo actualizar el papel de la empleabilidad en el éxito profesional subjetivo en el mundo laboral contemporáneo y descubrir las condiciones que pueden impulsar el rendimiento al experimentar inseguridad laboral . El estudio 1 ha demostrado que la empleabilidad sigue siendo un concepto relevante en el mercado laboral actual a p…

Massive presence of insertion sequences in the genome of SOPE, the primary endosymbiont of the rice weevil Sitophilus oryzae

2008

Bacteria that establish an obligate intracellular relationship with eukaryotic hosts undergo an evolutionary genomic reductive process. Recent studies have shown an increase in the number of mobile elements in the first stage of the adaptive process towards intracellular life, although these elements are absent in ancient endosymbionts. Here, the genome of SOPE, the obligate mutualistic endosymbiont of rice weevils, was used as a model to analyze the initial events that occur after symbiotic integration. During the first phases of the SOPE genome project, four different types of insertion sequence (IS) elements, belonging to well-characterized IS families from alpha-proteobacteria, were ide…

Covalent modificaition of juvenile hormone binding proteins by photoaffinity labeling: An unexpected gel shift effect

1994

The 32 kD juvenile hormone binding protein (JHBP) and two 80 kD proteins in larval Manduca sexta hemolymph were labeled with [3H]FDK, a photoaffinity analog of methyl farnesoate (MF). The labeling could be completely displaced by a 30-fold excess of either MF or JH II, demonstrating that [3H]FDK binds specifically to the JH binding sites of the 32 kD JHBP and the 80 kD proteins. In addition, a high molecular-mass protein was labeled with [3H]FDK; labeling could be displaced by excess MF but not by JH II, demonstrating the selectivity in binding MF. The 32 kD JHBP also appeared to weakly bind the potent juvenoid, methoprene, at the JH binding site. Covalent modification by [3H]FDK induced a …

Photochemical Functionalization of Allyl Benzoates by C-H Insertion

2013

The photoreactivity of allyl benzoates, containing an electron-rich double bond, has been explored by irradiation at 305 nm in different solvents. Solvent addition products arising from an insertion of the alpha H–C bonds of THF, dioxane, and i-PrOH to the allylic double bond was realized. The observed reactivity depended on reaction conditions and substitution pattern of the substrate. A DFT study on this unusual reaction was performed allowing the formulation of two mechanistic pathways.

DUAL APPLICATION OF DIVALENT ION-ANCHORED CATALYST: BIODIESEL SYNTHESIS AND PHOTOCATALYTIC DEGRADATION OF CARBAMAZEPINE

2019

IDENTIFICATION OF A CALMODULIN-BINDING SITE WITHIN THE DOMAIN I OF BACILLUS THURINGIENSISCry3Aa TOXIN

2012

Bacillus thuringiensis Cry3Aa toxin is a coleopteran specific toxin highly active against Colorado Potato Beetle (CPB).We have recently shown that Cry3Aa toxin is proteolytically cleaved by CPB midgut membrane associated metalloproteases and that this cleavage is inhibited by ADAM metalloprotease inhibitors. In the present study, we investigated whether the Cry3Aa toxin is a calmodulin (CaM) binding protein, as it is the case of several different ADAM shedding substrates. In pull-down assays using agarose beads conjugated with CaM, we demonstrated that Cry3Aa toxin specifically binds to CaM in a calcium-independent manner. Furthermore, we used gel shift assays and (1)H NMR spectra to demons…

Vertical stratification and trophic interactions among organisms of a soil decomposer food web – a field experiment using 15N as a tool

2002

Abstract In this field study, we explored the spatial segregation between the litter- and humus-inhabiting organisms of the detrital food web using 15 N-isotope technique. The study was established in 11 × 11 m plots fertilized with 15 N-labelled urea. Ten years after urea application, soil samples were taken, both from the litter layer and the combined F+H layer. The samples were analysed for N content and the proportion of 15 N in (i) the residual organic matter in the litter and F+H layer (excluding microbes), (ii) microbial biomass, and (iii) various feeding guilds of soil fauna. The basal resource, soil microbes, and the fauna were more enriched with 15 N in the F+H layer than in the l…

Analysis of kynurenine transaminase activity in Drosophila by high performance liquid chromatography

1991

Abstract A sensitive assay for kynurenine transaminase activity (E.C. 2.6.1.7) based on rapid separation of the reaction product by high performance liquid chromatography (HPLC) has been developed. Drosophila sordidula extracts have been assayed by this new method and this is the first time that kynurenine transaminase activity has been demonstrated in Drosophila . The method of assay developed can be extended to any other organism. Kynurenine and 3-hydroxykynurenine were both used as substrates, and they were transaminated to kynurenic acid and xanthruenic acid, respectively. HPLC is used to separate and quantitate these reaction products from all other components in the reaction mixture. …