114 resultados para Quantity discount


Relevância:

10.00% 10.00%

Publicador:

Resumo:

How much Aragonese is still spoken remains largely an unknown quantity. Naturally, establishing the number of speakers of any variety begs the question of what speaking a language actually means, and the picture is often clouded by the political interests of particular groups, as is the case in Aragon. The strong claim to the continued widespread use of Aragonese made by such associations as the Consello d"a Fabla in Huesca is counterbalanced by that of the more reactionary, sceptical academics at the University of Saragossa, who maintain that Aragonese varieties, ignoring the Catalan of Aragon spoken right down La Franja, the transition area between Aragon and Catalonia, now only survive in certain pockets of resistance across the north of Huesca. This paper will attempt to provide a summary of the available facts and report on some of the author"s own findings during his more recent trips to Aragon. Keywords Spanish dialectology, Aragonese, standardization of Aragonese, vitality of Aragonese

Relevância:

10.00% 10.00%

Publicador:

Resumo:

The analysis of price asymmetries in the gasoline market is one of the most studied in the energy economics literature. Nevertheless, the great variability of results makes it very difficult to extract conclusive results on the existence or not of asymmetries. This paper shows through a meta-analysis approach how the industry segment analysed, the quality and quantity of data, the estimator and the model used may explain this heterogeneity of results.

Relevância:

10.00% 10.00%

Publicador:

Resumo:

En el present treball es proposa com lluitar contra el malbaratament alimentari que es genera al llarg de tota la cadena alimentària, sent aquest degut a causa d'una planificació poc adequada. L'objectiu principal és planificar i implantar un sistema de gestió per tal de recuperar l'excedent alimentari que es genera als comerços i les indústries del municipi de Montmeló, elaborant així un protocol per tal de poder redistribuir aquest aliment als sectors de la població en situacions econòmiques més precàries. Com a objectius secundaris, es pretén conscienciar, fomentar i potenciar el treball en xarxa entre els diferents agents implicats, com ara: la ciutadania, les entitats socials (Càritas Parroquial Montmeló), sector privat (establiments alimentaris del municipi, mercat municipal, indústries del sector alimentari) i el sector públic (departament de serveis socials, medi ambient, comerç i brigada municipal). A l'hora de planificar i implantar un sistema de gestió per tal de recuperar l'excedent alimentari, s'ha analitzat i valorat el camí que hi realitza, des d'on es genera fins al beneficiari final. Aquest s'ha gestionat per etapes, en les que s'han identificat els generadors, el tipus i quantitat d'aliment que malbaraten. S'ha proposat un nou sistema de recollida d'informació i les pautes que han de seguir per garantir el bon estat de l'aliment com: una taula de conservació, un protocol de funcionament, un document d'entrega i una fitxa de control de les condicions d'higiene. Per tal d'assolir una bona coordinació entre totes les parts, s'han realitzat reunions conjuntes entre els generadors, serveis socials i Càritas on s'ha acabat signant un acord de col·laboració. Entre les conclusions més rellevants cal destacar que ha servit per establir un precedent d'aprofitament alimentari al municipi de Montmeló, aconseguint alimentar a un gran nombre de famílies amb greus problemes econòmics. A més s'ha arribat a disminuir la quantitat de residus generats, amb el conseqüent estalvi de recursos econòmics i materials on s'ha recuperat un total de 5.760 Kg d'aliments aptes pel consum.

Relevância:

10.00% 10.00%

Publicador:

Resumo:

L'entrada en vigor de la Directiva 1999/31/CE limita l'entrada de residus biodegradables a l'abocador i promou la gestió d'aquests residus per altres vies. El compostatge és una alternativa a la deposició en abocador que respecta el cicle natural de la matèria. A Catalunya, aquesta tècnica s'ha vist potenciada pels plans de gestió de residus PRECAT201 i PINFRECAT202. L'objecte d'aquest estudi és avaluar l'eficiència de la recollida selectiva al municipi de l'Esquirol; i comparar i avaluar diferents alternatives de gestió de la FORM3 dins i fora del municipi. La metodologia de l'estudi ha consistit en analitzar les dades de la recollida selectiva de l'ARC4, tant del municipi de l'Esquirol com de la resta de municipis del Collsacabra, i calcular els costos econòmics de la gestió de la FORM en el supòsit de tractament mitjançant l'autocompostatge, una planta de compostatge a petita escala o el tractament en una planta de compostatge convencional. Els resultats de l'estudi indiquen que la recollida selectiva del municipi de l'Esquirol obté uns valors per sobre dels objectius del PROGREMIC5, amb l'excepció de la FORM. Per tal de millorar la qualitat i la quantitat de la FORM recollida, l'estudi proposa en una primera fase: implantar el sistema de recollida selectiva porta a porta d'aquesta fracció i de la fracció resta; i en una segona fase: tractar la FORM en una petita planta de compostatge amb el sistema de sitges amb ventilació forçada.

Relevância:

10.00% 10.00%

Publicador:

Resumo:

In this thesis (TFG) the results of the comparison between different methods to obtain a recombinant protein, by orthologous and heterologous expression, are exposed. This study will help us to identify the best way to express and purify a recombinant protein that will be used for biotechnology applications. In the first part of the project the goal was to find the best expression and purification system to obtain the recombinant protein of interest. To achieve this objective, a system expression in bacteria and in yeast was designed. The DNA was cloned into two different expression vectors to create a fusion protein with two different tags, and the expression of the protein was induced by IPTG or glucose. Additionally, in yeast, two promoters where used to express the protein, the one corresponding to the same protein (orthologous expression), and the ENO2 promoter (heterologous expression). The protein of interest is a NAD-dependent enzyme so, in a second time, its specific activity was evaluated by coenzyme conversion. The results of the TFG suggest that, comparing the model organisms, bacteria are more efficient than yeast because the quantity of protein obtained is higher and better purified. Regarding yeast, comparing the two expression mechanisms that were designed, heterologous expression works much better than the orthologous expression, so in case that we want to use yeast as expression model for the protein of interest, ENO2 will be the best option. Finally, the enzymatic assays, done to compare the effectiveness of the different expression mechanisms respect to the protein activity, revealed that the protein purified in yeast had more activity in converting the NAD coenzyme.

Relevância:

10.00% 10.00%

Publicador:

Resumo:

The degradation of the filaments is usually studied by checking the silicidation or carbonization status of the refractory metal used as catalysts, and their effects on the structural stability of the filaments. In this paper, it will be shown that the catalytic stability of a filament heated at high temperature is much shorter than its structural lifetime. The electrical resistance of a thin tungsten filament and the deposition rate of the deposited thin film have been monitored during the filament aging. It has been found that the deposition rate drops drastically once the quantity of dissolved silicon in the tungsten reaches the solubility limit and the silicides start precipitating. This manuscript concludes that the catalytic stability is only guaranteed for a short time and that for sufficiently thick filaments it does not depend on the filament radius.

Relevância:

10.00% 10.00%

Publicador:

Resumo:

This paper investigates the extent to which the gap in total factor productivity between small and large firms is due to differences in the endowment of factors determining productivity and to the returns associated with these factors. We place particular emphasis on the contribution of differences in the propensity to innovate and in the use of skilled labor across firms of different size. Empirical evidence from a representative sample of Spanish manufacturing firms corroborates that both differences in endowments and returns to innovation and skilled labor significantly contribute to the productivity gap between small and large firms. In addition, it is observed that the contribution of innovation to this gap is caused only by differences in quantity, while differences in returns have no effect; in the case of human capital, however, most of the effect can be attributed to increasing differences in returns between small and large firms.

Relevância:

10.00% 10.00%

Publicador:

Resumo:

The singular properties of hydrogenated amorphous carbon (a-C:H) thin filmsdeposited by pulsed DC plasma enhanced chemical vapor deposition (PECVD), such as hardness and wear resistance, make it suitable as protective coating with low surface energy for self-assembly applications. In this paper, we designed fluorine-containing a-C:H (a-C:H:F) nanostructured surfaces and we characterized them for self-assembly applications. Sub-micron patterns were generated on silicon through laser lithography while contact angle measurements, nanotribometer, atomic force microscopy (AFM), and scanning electron microscopy (SEM) were used to characterize the surface. a-C:H:F properties on lithographied surfaces such as hydrophobicity and friction were improved with the proper relative quantity of CH4 and CHF3 during deposition, resulting in ultrahydrophobic samples and low friction coefficients. Furthermore, these properties were enhanced along the direction of the lithographypatterns (in-plane anisotropy). Finally, self-assembly properties were tested with silicananoparticles, which were successfully assembled in linear arrays following the generated patterns. Among the main applications, these surfaces could be suitable as particle filter selector and cell colony substrate.

Relevância:

10.00% 10.00%

Publicador:

Resumo:

Hoy día, todo el mundo tiene un ojo puesto en el Mercado Eléctrico en nuestro país. No existe duda alguna sobre la importancia que tiene el comportamiento de la demanda eléctrica. Una de las peculiaridades de la electricidad que producimos, es que hoy por hoy, no existen aún métodos lo suficientemente efectivos para almacenarla, al menos en grandes cantidades. Por consiguiente, la cantidad demandada y la ofertada/producida deben casar de manera casi perfecta. Debido a estas razones, es bastante interesante tratar de predecir el comportamiento futuro de la demanda, estudiando una posible tendencia y/o estacionalidad. Profundizando más en los datos históricos de las demandas; es relativamente sencillo descubrir la gran influencia que la temperatura ambiente, laboralidad o la actividad económica tienen sobre la respuesta de la demanda. Una vez teniendo todo esto claro, podemos decidir cuál es el mejor método para aplicarlo en este tipo de series temporales. Para este fin, los métodos de análisis más comunes han sido presentados y explicados, poniendo de relieve sus principales características, así como sus aplicaciones. Los métodos en los que se ha centrado este proyecto son en los modelos de alisado y medias móviles. Por último, se ha buscado una relación entre la demanda eléctrica peninsular y el precio final que pagamos por la luz.