Search results for "Conversion"
showing 10 items of 707 documents
Behaviour influences cholesterol plasma levels in a pig model
2012
Little is known about the relationship between feed intake behaviour and cholesterol levels in humans. This can be attributed to the fact that feed intake behaviour in humans is difficult to assess. The relationships between feed intake, feed efficiency and feed intake behaviour, and cholesterol and triglyceride levels were investigated at an average age of 187 days, in a pig model consisting of 202 Duroc barrows. Feed intake and feed intake behaviour were recorded individually and daily by means of an electronic identification system. Animals with high levels of total cholesterol also had high levels of high-density lipoprotein (HDL), low-density lipoprotein (LDL) cholesterol and triglycer…
Compensatory growth in juvenile rainbow trout, Oncorhynchus mykiss (Walbaum), held individually
2004
Abstract The effect of feed cycling on compensatory growth was examined in juvenile rainbow trout, Oncorhynchus mykiss (Walbaum), held individually at 15 °C. Fish were fasted for 2, 4, 8, or 14 days and then refed until either their relative feed intake differed by less than 10% of fed controls, or the duration of the refeeding period was four times the fasting period. After 80 days, fish fasted for 8 days at a time were smaller than controls, or fish experiencing 2 or 4 days of fasting, while fish fasted for 14 days did not differ from other groups. There were no differences in visceral fat or hepatosomatic indices, but within-treatment variation was high. Fish subjected to fasting display…
Efficiency of concentration photovoltaic cells governed by luminescence processes
2013
The development of multi-junctions III-V semiconductors solar cells, that combine high conversion efficiency (over 40%) and capability of working under high illumination intensity (up to 1000 suns), has stimulated a rapid growth of concentrating photovoltaic (CPV) technology. The performance of these cells is based on the matching between the semiconductors band gap and the solar spectrum so as to optimize the current balancing between the subcells. This requirement is also important in connection with the CPV modules using lenses, mirrors, optical coupling compounds that introduce a wavelength dependent response to the sunlight. Therefore, care must be exercised in designing optimum cells …
Catalizzatori a base di nanocorni di carbonio-liquidi ionici per la conversione della CO2
2017
Nel presente lavoro sono stati impiegati nanocorni di carbonio (CNHs) come piattaforma catalitica per il design di nuovi materiali ibridi a base di sali di imidazolio per la conversione della CO2 in carbonati ciclici. A tale scopo sono stati preparati una serie di catalizzatori eterogenei mediante una procedura sintetica one-pot basata sulla polimerizzazione radicalica di vari sali di bis vinilimidazolio in presenza di nanocorni di carbonio. I suddetti materiali sono stati caratterizzati e testati con successo per la reazione di fissazione della CO2 in epossidi (Figura 1). Figura 1 Conversione della CO2 catalizzata da liquidi ionici supportati su CNHs Le performances catalitiche, valutate i…
Transdiferenciación de fibroblastos a hepatocitos mediante reprogramación celular : papel de Gata4 en el bloqueo de la reprogramación de células somá…
2013
En esta tesis doctoral se muestra la conversión directa de fibroblastos embrionarios de ratón a células con morfología y fenotipo similares al hepatocito mediante la expresión retroviral de seis factores de transcripción hepáticos, Hhex, Gata4, Foxa2, HNF4α HNF1α y HNF6. Los fibroblastos infectados mantenidos durante 3-4 semanas en cultivo adquieren una morfología epitelial y expresan genes típicamente hepáticos como Albumina, Cyp7a1, Tat o Slc10a1 a niveles próximos al hepatocito. Durante la manipulación de los fibroblastos mediante la expresión de los factores de transcripción ya mencionados, observamos que el factor de transcripción Gata4 es capaz de bloquear la reprogramación a células …
Internal conversion from excited electronic states of 229Th ions
2017
The process of internal conversion from excited electronic states is investigated theoretically for the case of the vacuum-ultraviolet nuclear transition of 229 Th . Due to the very low transition energy, the 229 Th nucleus offers the unique possibility to open the otherwise forbidden internal conversion nuclear decay channel for thorium ions via optical laser excitation of the electronic shell. We show that this feature can be exploited to investigate the isomeric state properties via observation of internal conversion from excited electronic configurations of Th + and Th 2 + ions. A possible experimental realization of the proposed scenario at the nuclear laser spectroscopy facility IGISO…
Net currents obtained from zero-average potentials in single amphoteric nanopores
2013
We have studied experimentally and theoretically the rectifying properties of a single asymmetric nanopore functionalized with amphoteric lysine groups and characterized the net current obtained with zero-average time dependent potentials. The pH-controlled rectification phenomena may be relevant to bio-electrochemistry, pH sensing and regulation, and energy conversion. (C) 2013 Elsevier B.V. All rights reserved.
LA TUTELA DEI CONTRATTI A TERMINE ILLEGITTIMI CON LA P.A.: SUL RISARCIMENTO DEL DANNO RESTA APERTO IL TORNEO TRA I TRIBUNALI DI MERITO.
2013
Premesso un breve excursus del variegato panorama giurisprudenziale sulla determinazione del danno risarcibile per l'illegittima apposizione del termine a contratti stipulati con la p.a., in mancanza della conversione del contratto a tempo indeterminato nel settore del pubblico impiego e di un criterio univoco di quantificazione del pregiudizio economico, la nota analizza criticamente la soluzione interpretativa fornita dalla sentenza in commento. Il giudice condanna la p.a. a risarcire una somma pari alle retribuzioni “future”, che sarebbero state percepite dalla scadenza del termine illegittimo fino al raggiungimento dell'età pensionabile delle ricorrenti, utilizzando criteri volti a dila…
The Experimental Study of Heat Waste Conversion into Useful Electric Power
2009
This paper presents the practical results ofthe design solutions, executing and experimentaltesting of a prototype model of o thermoelectricgenerator, based on the conversion of residualthermical energy into electric power, by improving theSeebeck effect. To this purpose, high performancethermoelectric modules have been used, taken from therecent production of the American Corporation Hi-ZTechnology. The prototype thermoelectric generatorbuilt for a demonstrative purposes has got the lowefficiency category. The results taken from the testsand experimental measurements have showntheimportance of the constructive solution of materialsand technologies that have been used. These resultsdirect t…
Imagery and Religious Conversion. The Symbolic Function of Jonah 1:13
2018
Jonah 1:13 has a delaying function in the narrative, introducing a pause between Jonah’s demand to be thrown in the sea (1:12) and the event’s occurrence (1:15). Most commentators discuss only the events of 1:13 and their causes. In this article, I suggest an interpretation of Jonah 1:13 based on the imagery of the narrative. An analysis of the use of metaphors and symbols does not replace the message of the verse; such an analysis simply augments it with motives of the seamen’s conversion. Beside the narrative level, there is a hidden level suggesting a deeper understanding of the story where symbols and metaphors have a consolidating function. Distance, directions, and movement in Jonah 1…