Search results for "trap"

Human resources practices andintrapreneurial behavior:The influence of gender in this relationship

2020

RESUMEN De cara a dar respuesta a la enorme competitividad del entorno actual, es imprescindible contar con individuos implicados e involucrados en la ejecución de un proceso intra-emprendedor para buscar nuevas oportunidades de negocio. Para fomentar este comportamiento intra- emprendedor en las organizaciones, es necesario adoptar determinadas herramientas, relacionadas con el diseño organizativo y las prácticas de RRHH en la empresa. La función de RRHH se considera fundamental para alentar un comportamiento innovador, proactivo y orientado a la asunción de riesgos, lo que se supone que desembocará en un incremento de los resultados de innovación y una mayor ventaja competitiva de la empr…

High Pressure Processing Impact on Emerging Mycotoxins (ENNA, ENNA1, ENNB, ENNB1) Mitigation in Different Juice and Juice-Milk Matrices

2022

The aim of the present study was to investigate the potential of high-pressure processing (HPP) (600 MPa during 5 min) on emerging mycotoxins, enniatin A (ENNA), enniatin A1 (ENNA1), enniatin B (ENNB), enniatin B1 (ENNB1) reduction in different juice/milk models, and to compare it with the effect of a traditional thermal treatment (HT) (90 °C during 21 s). For this purpose, different juice models (orange juice, orange juice/milk beverage, strawberry juice, strawberry juice/milk beverage, grape juice and grape juice/milk beverage) were prepared and spiked individually with ENNA, ENNA1, ENNB and ENNB1 at a concentration of 100 µg/L. After HPP and HT treatments, ENNs were extracted from treate…

Target Quantification and Semi-Target Screening of Undesirable Substances in Pear Juices Using Ultra-High-Performance Liquid Chromatography-Quadrupol…

2020

Fruit juices are common products in modern diets due to the supply of vegetal nutrients combined with its tastiness. Nevertheless, potential contaminants, such as mycotoxins and pesticides, can be present in commercial products due to a potential carry-over. Therefore, the aim of this study was to investigate for the first time the presence of 14 Fusarium mycotoxins using a quick, easy, cheap, effective, rugged, and safe (QuEChERS)-based extraction followed by an ultra-high-performance liquid chromatography-quadrupole Orbitrap high-resolution mass spectrometry in 21 pear juice samples from Italian markets. Up to nine different mycotoxins were detected, particularly an extensive presence of …

Do different models induce changes in mortality indicators? That is a key question for extending the Lee-Carter model

2021

[EN] The parametric model introduced by Lee and Carter in 1992 for modeling mortality rates in the USA was a seminal development in forecasting life expectancies and has been widely used since then. Different extensions of this model, using different hypotheses about the data, constraints on the parameters, and appropriate methods have led to improvements in the model's fit to historical data and the model's forecasting of the future. This paper's main objective is to evaluate if differences between models are reflected in different mortality indicators' forecasts. To this end, nine sets of indicator predictions were generated by crossing three models and three block-bootstrap samples with …

Reactivity of arsenic compounds on trapping masses and role of the active phase

2019

The aim of the thesis is to study the reactivity of organic arsenic compounds on various recovery masses and to identify the role of the nature of the active phase and the reaction mechanisms involved. The active phase is composed of metals (Ni, Co, Mo, Cu, Zn, Fe, etc.), pure or in a mixture, in the reduced state or in the sulphide state. The selection of the metallic phases will be carried out by molecular modeling "ab initio", and the synthesis by impregnation of metallic salts on mesoporous aluminas). The reactivity of the solids will be studied in a static reactor on simplified model loads, with kinetic monitoring. The advanced characterization of the solids after synthesis and after r…

A Weyl's law for black holes

2023

We discuss a Weyl's law for the quasi-normal modes of black holes that recovers the structural features of the standard Weyl's law for the eigenvalues of the Laplacian in compact regions. Specifically, the asymptotics of the counting function $N(\omega)$ of quasi-normal modes of $(d+1)$-dimensional black holes follows a power-law $N(\omega)\sim \mathrm{Vol}_d^{\mathrm{eff}}\omega^d$, with $\mathrm{Vol}_d^{\mathrm{eff}}$ an effective volume determined by the light-trapping and decay properties of the black hole geometry. Closed forms are presented for the Schwarzschild black hole and a quasi-normal mode Weyl's law is proposed for generic black holes. As an application, such Weyl's law could …

Evaluation of methods of interpolation-extrapolation of g L (r) and F(r,θ) for high-energy brachytherapy sources

2009

High-precision mass measurements for fundamental applications using highly-charged ions with SMILETRAP

2007

The Penning trap mass spectrometer SMILETRAP takes advantage of highly-charged ions for high-accuracy mass measurements. In this paper recent mass measurements on Li and Ca ions are presented and their impact on fundamental applications discussed, especially the need for accurate mass values of hydrogen-like and lithium-like ions in the evaluation of the electron g-factor measurements in highly-charged ions is emphasized. Such experiments aim to test bound state quantum electrodynamics. Here the ionic mass is a key ingredient, which can be the limiting factor for the final precision.

Neglecting the 19th century

2015

The present article examines the historical narrative proposed by modernization theory about the recent Spanish past. Its assumptions and consequences for historical research focused on the 19th century are described in order to understand the lack of intellectual exchange among historians and sociologists in the Spanish academic world. Modernization theory has justified the political consensus that allowed the Spanish transition to democracy and its academic authority has narrowed the scope of historical research about previous democratization processes. Although the paradigm of Spanish backwardness has been refuted by specialists on 19th-century Spain, sociologists, economists and histor…

El sexismo de la revista satírica El Papus (1973-1987). La lacra que cuestiona su papel liberador en la Transición española

2020

espanolSe investiga el papel de la revista satirica El Papus, contrapoder informativo durante la Transicion espanola, en la detraccion de la lacra social del machismo. Para ello se ha llevado a cabo el analisis cuantitativo y cualitativo de los comentarios y roles asignados a la mujer en una muestra de 4.661 piezas publicadas en todo su periplo (1973-1987) y registradas en una base de datos relacional. Por un lado, esta vision androcentrica fue fruto de una redaccion mayoritariamente formada y dirigida por hombres que tratan de satisfacer las necesidades de un publico constituido por hombres (80%) reprimidos sexualmente; y, por otro lado, busco tambien la provocacion de los represores poder…