Search results for "Pascal"
showing 10 items of 76 documents
The influence of high pressure processing on antimutagenic activities of fruit and vegetable juices
1997
Abstract In model experiments using the Salmonella/reversion assay (Ames test) and the carcinogen 2-amino-3-methyl-imidazo[4,5-f]quinoline (IQ), antimutagenic activities against IQ had been detected in about 70% of 62 fruit and vegetable species [Edenharder, Kurz, John, Burgard and Seeger (1994) Fd Chem. Toxic. 32, 443–459]. However, thermal stability of the antimutagenic factors varied considerably. As hydrostatic pressure is an alternative to heat in food processing and preservation, homogenates of 14 fruit and vegetable species were exposed to different pressures and temperatures. According to the response of the antimutagenic potential, three groups of produce could be identified: (a) m…
Towards General Purpose Object Detection: Deep Dense Grid Based Object Detection
2020
Object detection is one of the most challenging and very important branch of computer vision. Some of the challenging aspect of a detection network is the fact that an object can appear anywhere in the image, be partially occluded by another object, might appear in crowd or have greatly varying scales. Consequently, we propose a fine grained and equally spaced dense grid cells throughout an input image be responsible of detecting an object. We re-purpose an already existing deep state-of-the-art detector or classifier into deep and dense detector. Our dense object detector uses binary class encoding and hence suitable for very large multi-class object detector. We also propose a more flexib…
High pressure processing of food-grade emulsion systems: Antimicrobial activity, and effect on the physicochemical properties
2019
Abstract The use of high pressure processing (HPP) for development of stable emulsion-based delivery systems has been recently increased. Under adequate conditions, application of high pressures modifies the functionality of protein and polysaccharide molecules and significantly promotes the emulsifying activities. Application of high pressures also modulates the emulsion microstructure without any destabilization and gelation of protein molecules. The lipid oxidation in HPP-treated emulsions can be accelerated, particularly with higher pressure levels, while the HPP utilization on emulsions in acidic conditions can highly inhibit the growth of spoilage and pathogenic microorganisms. In thi…
High pressure processing of fruit juice mixture sweetened with Stevia rebaudiana Bertoni: Optimal retention of physical and nutritional quality
2013
Abstract The impact of high pressure processing (HPP) technology on physicochemical properties (color, browning index, turbidity index), bioactive compounds (ascorbic acid, total phenolic compounds, total anthocyanins, total carotenoids) and antioxidant capacity of a fruit juice mixture (papaya (32.5%, v/v), mango (10%, v/v) and orange (7.5%, v/v)) sweetened with Stevia rebaudiana Bertoni at different percentages was studied. The experimental design comprised a response surface methodology according to a central composite face-centered design. The variable ranges were 300–500 MPa (pressure), 5–15 min (time), 0–2.5% Stevia percentage. This design was used to determine the optimal high pressu…
Comparative effect of supercritical carbon dioxide and high pressure processing on structural changes and activity loss of oxidoreductive enzymes
2019
Abstract Due to the CO2 specific characteristics, it has been used as supercritical (Sc) fluid for several applications, including enzyme inactivation. The influence of Sc-CO2 (10–65 MPa/10–30 min/35–65 °C) on mushroom polyphenol oxidase (PPO) and horseradish peroxidase (POD) was evaluated and the results were compared with those found using high pressure processing (HPP) (200–900 MPa/5–45 °C/1–15 min). The free ion concentration was also studied to compare the enzymatic activity and changes in electrical conductivity. Additionally both enzymes, untreated or treated using either Sc-CO2 or HPP, were used as additives in the CuCl2 crystallization method. The resulting additive-specific CuCl2 …
La mano del diavolo e il cuore di Pascal
2018
This paper aims to analyze the concept of fear in La main du diable, a movie of Maurice Tourneur. The film shows the Faustian pact between a bad artist and the devil. The pact concerns a wretched hand, and the obsession that will lead the protagonist to free it. The director has been able to show two kinds of fear, which, taken in isolation, seem to be a chiasm: the fear of death, which is afraid of a condition of life that leads to death (misery, failure, lack of love), and the fear of life, which is afraid of eternity, of an eternal suffering, of a life that does not remedy the loss of one's being. And these fears are afraid of the image and fear of the lack of image. The heart's reasons …
Bergson, defensor de la sostenibilidad
2016
Este trabajo de investigación pone de manifiesto la vigencia de los planteamientos de Henri Bergson como crítico del modelo de globalización actual que trata como elementos de la misma naturaleza al tiempo y al espacio; una globalización en la que está ausente, en la que se ha ignorado el tiempo como duración. Bergson fue el filósofo que vio con claridad la diferencia sustancial entre tiempo y espacio, y la consiguiente no aplicabilidad de las leyes físicas a un tiempo que en realidad es irreversible, que prima sobre el espacio. Es pues de crucial importancia su intuición de la continuidad del tiempo, su concepción integral de la durée y de lo durable. El pensamiento de Bergson va en contra…
Effect of processing and food matrix on calcium and phosphorous bioavailability from milk-based fruit beverages in Caco-2 cells
2011
9 páginas, 4 figuras, 4 tablas.-- et al.
Una lectura existencial de “El difunto Matías Pascal” de Luigi Pirandello: el problema de la identidad en Adriano Meis
2018
El difunto Matías Pascal se sitúa dentro de las primeras obras de Pirandello y se considera como un punto de inflexión dentro de la poética del autor. En esta novela se desarrolla el problema de la identidad, el conflicto entre la realidad y ficción, entre otros. En esta investigación, se propone la posibilidad de hacer una lectura existencial del personaje Adriano Meis a partir de la configuración de la identidad. Elementos claves en su desarrollo y en el análisis de este trabajo son la relación entre Matías Pascal y Adriano Meis, la relación de la sociedad con Adriano y la utilización de la muerte como una escapatoria. Para ello, se ha recurrido a las teorías existencialistas de Jean Paul…
IS MONTAIGNE A SKEPTIC? PASCAL'S INFLUENCE ON OUR UNDERSTANDING OF THE ESSAYS
2019
RESUMEN Michel de Montaigne, el reconocido autor de Los ensayos, ha sido interpretado como un escéptico y, más en concreto, como un defensor del fideísmo escéptico; lectura que tiene su origen principal en la interpretación de B. Pascal. El artículo pretende reexaminar tanto la cuestión del fideísmo como la del escepticismo presente en Los ensayos, para concluir que quizá la interpretación de Pascal, que todavía perdura, se basa en un "desvío" involuntario o intencionado, pero en todo caso creativo y fértil. ABSTRACT Michel de Montaigne, the renowned author of The Essays, has been interpreted as a skeptic, and, more specifically, as a defender of skeptical fideism. This reading has its main…