Search results for "330"
showing 10 items of 432 documents
SEA presidential address: Group connectivity and cooperation
2011
A model-free methodology is used for the first time to estimate a daily volatility index (VIBEX-NEW) for the Spanish financial market.We use a public data set of daily option prices to compute this index and showthat daily changes in VIBEXNEW display a negative, tight contemporaneous relationship with IBEX daily returns, contrary to other common volatility indicators, as an implied volatility indicator or a GARCH(1,1) conditional volatility model. This relationship is approximately symmetric to the sign on VIBEX-NEW changes and asymmetric to the IBEX-35 returns sign, which make it clearly a suitable volatility index for the Spanish stock market. We also examine the relationship between curr…
Functional and bioactive properties of peptides derived from marine side streams
2021
In fish processing, a great amount of side streams, including skin, bones, heads and viscera, is wasted or downgraded as feed on a daily basis. These side streams are rich sources of bioactive nitrogenous compounds and protein, which can be converted into peptides through enzymatic hydrolysis as well as bacterial fermentation. Peptides are short or long chains of amino acids differing in structure and molecular weight. They can be considered as biologically active as they can contribute to physiological functions in organisms with applications in the food and pharmaceutical industries. In the food industry, such bioactive peptides can be used as preservatives or antioxidants to prevent food…
Use of Spectroscopic Techniques to Monitor Changes in Food Quality during Application of Natural Preservatives: A Review
2020
Publisher's version (útgefin grein)
Comparison of the environmental assessment of an identical office building with national methods
2019
The IEA EBC Annex 72 focuses on the assessment of the primary energy demand, greenhouse gas emissions and environmental impacts of buildings during production, construction, use (including repair and replacement) and end of life (dismantling), i.e. during the entire life cycle of buildings. In one of its activities, reference buildings (size, materialisation, operational energy demand, etc.) were defined on which the existing national assessment methods are applied using national (if available) databases and (national/regional) approaches. The ?be2226? office building in Lustenau, Austria was selected as one of the reference buildings. TU Graz established a BIM model and quantified the amou…
Parents' math-gender stereotypes, children's self-perception of ability, and children's appraisal of parents' evaluations in 6-year-olds
2015
Abstract This study investigated for the first time the relations between parents' math–gender stereotypes, parents' evaluations of children's math ability, children's math ability self-perception, and children's appraisal of parents' evaluations, addressing 253 Italian children as young as 6 years of age, their mothers, fathers, and teachers. Novel results revealed the specific role of mothers' math–gender stereotypes in relation to daughters, but not sons: Mothers' math–gender stereotypes predicted girls' math self-perception which, in turn, predicted girls' appraisal of both mothers' and fathers' evaluations of their ability. Importantly, children's appraisal of parents' evaluations was …
Trends and cycles in U.S. job mobility
2021
Recent studies document a decline in U.S. labor-market fluidity from as early as the 1970s on. Making use of the Annual Social and Economic (ASEC) supplement to the Current Population Survey (CPS), I uncover a pronounced increase in job-to-job mobility from the 1970s to the 1990s, i.e., the annual share of continuously employed job-to-job movers rises from 5.9 percent of the labor force in 1975–1979 to 8.8 percent in 1995–1999. Job-to-job mobility exhibits a downward trend only since the turn of the millennium. In order to provide a formal economic interpretation, I additionally estimate the parameters of the random on-the-job search model. Furthermore, I document that job-to-job mobility h…
La gestión de la programación teatral en España
2007
El sector de las artes escénicas ha destacado en los últimos años por un gran dinamismo y crecimiento. La mayor oferta y demanda de estas actividades culturales ha puesto de manifiesto la necesidad de gestionar el diseño de la programación desde una perspectiva más profesional, al tiempo que investigar esta materia. Sin embargo, son todavía escasos los estudios de naturaleza académica al respecto. En este sentido, los autores han desarrollado un estudio empírico centrado en responsables de programación de entidades escénicas españolas. Si bien el criterio de programación más valorado ha sido el perfil de la audiencia, ello no parece implicar una total aplicación de los principios y técnicas…
Keeping Public Debt Sustainable in an Equitable Way
2022
The COVID-19 pandemic has claimed over 5 million lives thus far. This grim figure would have been higher still without the strong and timely fiscal support provided by governments around the globe, including support for health sector and the development and deployment of vaccines. The IMF has noted that “in 2020, fiscal policy proved its worth. The increasing public debt in 2020 was fully justified by the need to respond to COVID 19 and its economic, social, and financial consequences” (Gaspar, 2021). How to keep debt sustainable is becoming a policy imperative, made all the more challenging by the lingering effects of the pandemic, particularly on low-income groups. In this article we summ…
Cardiorespiratory Fitness and Physical Activity following Lung Transplantation: A National Cohort Study
2020
<b><i>Background:</i></b> Low cardiorespiratory fitness and inactivity are common after lung transplantation (LTx). The causes of exercise intolerance are incompletely understood. <b><i>Objectives:</i></b> The aim of this study was to objectively assess cardiorespiratory fitness and physical activity, evaluate causes of exercise intolerance, and explore clinical factors associated with cardiorespiratory fitness after bilateral LTx (BLTx). <b><i>Materials and Methods:</i></b> Peak oxygen uptake (V<b>∙</b>O<sub>2peak</sub>) and exercise-limiting factors were evaluated by a treadmill cardiopulmonary…
The Impact of the Poland Foreign Trade On Its Real CO2 Emissions
2017
CO2 emissions are a global problem. This means that nothing or very little will change if only particular countries are involved. The purpose of this paper is the attempt to show the real CO2 emissions of the Poland as well as the impact of its trade on CO2 emissions in other countries in the world and in the EU in 2015. This study was conducted on the group of countries that are the major emitters of CO2 in the world including most of the EU members. Actual CO2 emissions were achieved by applying the actual emission factor. This takes into account the transfer of CO2 in export products and services as well as those imported by particular countries. It has turned out that the real CO2 emiss…