267 research outputs found
Varieties or Qualities? Horizontal and Vertical Intra-industry Trade within the NAFTA Trade Bloc
This article investigates empirically the nature and the dynamics of intra-regional trade in North America. Specifically, we analyze intra-NAFTA patterns of horizontal and vertical intra-industry trade - H(V)IIT - in the United States, Canada and Mexico over the 1992-2002 period and examine some industry characteristics of observed IIT patterns for each IIT component. The results indicate that though HIIT and VIIT exhibit different trends, both IIT types are important in labour/resource-intensive sectors, suggesting that comparative advantage may be an important factor in intra-NAFTA IIT. The most striking finding is that HIIT is consistently increasing, while VIIT exhibits a significant downward trend. Hence, our findings suggest that intra-NAFTA IIT has increasingly become an exchange of different varieties rather than different qualities, indicating to some extent an economic convergence process within the NAFTA trade bloc.International Relations/Trade,
Determinants of Export Specialization in ICT Products: A Cross-Country Analysis
In this paper the determinants of ICT export specialization are investigated with a panel- econometric analysis, which includes 28 countries. ICT exports are broken down into three broad ICT product groups (electronic data processing machines, integrated circuits and electronic components, and telecommunications equipment), and the determinants are examined for each of the above product categories. Our results indicate that technology factors, such as Research & Development expenditure and human capital constitute significant determinants. However, other deterministic factors, related to more recent trade theories, seem to be relatively more important.Export specialization, Information and Communications Technology (ICT), ICT exports, Panel data analysis
Sindicatos griegos : entre crisis y austeridad
El objetivo del presente artĂculo es proporcionar explicaciones sobre la incapacidad
de los sindicatos griegos para hacer frente al desafĂo de austeridad
impuesto a Grecia por la Troika y sus Memorandos tras el rescate de mayo de
2010. Para entender por qué los principales actores sindicales respondieron
a la crisis de la forma en que lo hicieron, llevaremos a cabo un análisis de su
trayectoria. Más concretamente, las elecciones sindicales en términos tanto
de posiciones polĂticas como de acciones concretas se explican a la luz del
sistema sindical griego y de la lĂłgica que se estableciĂł en respuesta a importantes
cambios en el marco legislativo de principios de los años noventa; a
saber: la introducciĂłn de trabajo flexible y la aprobaciĂłn de la ley sobre
negociaciones colectivas libres y otras disposicionesThe aim of the present chapter is to provide explanations of the Greek trade unions’ inability to cope with
the austerity challenge, which was imposed on Greece by the Troika and its Memoranda in the aftermath of
the bailout of May 2010. In order to understand why the main trade union actors responded to the crisis in
the way they did, we shall carry out a path-dependent analysis. More specifically, the trade union choices in
terms of both political stances and concrete actions are explained in light of the Greek trade union system
and logic that was established in response to important changes in the legislative framework of the early
1990; namely, the introduction of flexible labour and the approval of Bill on Free collective bargaining
and other provisions
Agglomeration or Dispersion? Industrial Specialization and Geographic Concentration in NAFTA
We analyze industrial specialization and geographic concentration patterns within the NAFTAregional integration area during 1988-2000 and examine the determinants of spatial concentration. Theresults indicate that NAFTA countries have become increasingly dissimilar over time. A changing spatialstructure of total NAFTA manufacturing is also evident. Manufacturing is increasingly relocating toMexico, which comes at the expense of the US. In addition, there is evidence of a general upward trendin the degree of relative geographic concentration of North American industries. Labor-intensive andlow-technology activities appear to be the most spatially concentrated industries, exhibiting a strongincreasing trend. Comparative advantage factors largely explain geographic concentration of industriesacross NAFTA countries, indicating the empirical relevance of traditional trade theory in the NAFTAcase
An interpretable wildfire spreading model for real-time predictions
Forest fires pose a natural threat with devastating social, environmental,
and economic implications. The rapid and highly uncertain rate of spread of
wildfires necessitates a trustworthy digital tool capable of providing
real-time estimates of fire evolution and human interventions, while receiving
continuous input from remote sensing. The current work aims at developing an
interpretable, physics-based model that will serve as the core of such a tool.
This model is constructed using easily understandable equations, incorporating
a limited set of parameters that capture essential quantities and heat
transport mechanisms. The simplicity of the model allows for effective
utilization of data from sensory input, enabling optimal estimation of these
parameters. In particular, simplified versions of combustion kinetics and
mass/energy balances lead to a computationally inexpensive system of
differential equations that provide the spatio-temporal evolution of
temperature and flammables over a two-dimensional region. The model is
validated by comparing its predictions and the effect of parameters such as
flammable bulk density, moisture content, and wind speed, with benchmark
results. Additionally, the model successfully captures the evolution of the
firefront shape and its rate of spread in multiple directions
Gestural Control Of Wavefield synthesis
(Abstract to follow
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Flavonoid intake in European adults (18 to 64 years).
BACKGROUND: Flavonoids are a group of phenolic secondary plant metabolites that are ubiquitous in plant-based diets. Data from anthropological, observational and intervention studies have shown that many flavonoids are bioactive. For this reason, there is an increasing interest in investigating the potential health effects of these compounds. The translation of these findings into the context of the health of the general public requires detailed information on habitual dietary intake. However, only limited data are currently available for European populations. OBJECTIVE: The objective of this study is to determine the habitual intake and main sources of anthocyanidins, flavanols, flavanones, flavones, flavonols, proanthocyanidins, theaflavins and thearubigins in the European Union. DESIGN: We use food consumption data from the European Food Safety Authority (EFSA) and the FLAVIOLA Food Composition Database to estimate intake of flavonoids. RESULTS: Mean (±SEM) intake of total flavonoids in Europe was 428±49 mg/d, of which 136±14 mg/d were monomeric compounds. Gallated flavan-3-ols (53±12 mg/d) were the main contributor. The lowest flavonoid intake was observed in Mediterranean countries (monomeric compounds: 95±11 mg/d). The distribution of intake was skewed in many countries, especially in Germany (monomeric flavonoids; mean intake: 181 mg/d; median intake: 3 mg/d). CONCLUSIONS: The habitual intake of flavonoids in Europe is below the amounts found to have a significant health effect.This project was supported by the European Union (grant 226588, “Flaviola”). Mars, Inc., a member of the FLAVIOLA research consortium, provided support in the form of salaries for author HS, but did not have any additional role in the study design, data collection and analysis, decision to publish, or preparation of the manuscript.This is the final published version. It first appeared at http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0128132
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Association between dietary phyto-oestrogens and bone density in men and postmenopausal women
Phyto-oestrogens have been associated with a decreased risk for osteoporosis, but results from intervention and observational studies in Western countries have been inconsistent. In the present study, we investigated the association between habitual phyto-oestrogen intake and broadband ultrasound attenuation (BUA) of the calcanaeum as a marker of bone density. We collected 7 d records of diet, medical history and demographic and anthropometric data from participants (aged 45–75 years) in the European Prospective Investigation into Cancer-Norfolk study. Phyto-oestrogen (biochanin A, daidzein, formononetin; genistein, glycitein; matairesinol; secoisolariciresinol; enterolactone; equol) intake was determined using a newly developed food composition database. Bone density was assessed using BUA of the calcanaeum. Associations between bone density and phyto-oestrogen intake were investigated in 2580 postmenopausal women who were not on hormone replacement therapy and 4973 men. Median intake of total phyto-oestrogens was 876 (interquartile range 412) μg/d in postmenopausal women and 1212 (interquartile range 604) μg/d in men. The non-soya isoflavones formononetin and biochanin A were marginally significant or significantly associated with BUA in postmenopausal women (β = 1·2; P < 0·1) and men (β = 1·2; P < 0·05), respectively; enterolignans and equol were positively associated with bone density in postmenopausal women, but this association became non-significant when dietary Ca was added to the model. In the lowest quintile of Ca intake, soya isoflavones were positively associated with bone density in postmenopausal women (β = 1·4; P < 0·1). The present results therefore suggest that non-soya isoflavones are associated with bone density independent of Ca, whereas the association with soya or soya isoflavones is affected by dietary Ca
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Assessment of the dietary intake of total flavan-3-ols, monomeric flavan-3-ols, proanthocyanidins and theaflavins in the European Union
Dietary interventions with flavan-3-ols have shown beneficial effects on vascular function. The translation of these findings into the context of the health of the general public requires detailed information on habitual dietary intake. However, only limited data are currently available for European populations. Therefore, in the present study, we assessed the habitual intake of flavan-3-ol monomers, proanthocyanidins (PA) and theaflavins in the European Union (EU) and determined their main food sources using the EFSA (European Food Safety Authority) Comprehensive European Food Consumption Database. Data for adults aged 18–64 years were available from fourteen European countries, and intake was determined using the FLAVIOLA Flavanol Food Composition Database, developed for the present study and based on the latest US Department of Agriculture and Phenol-Explorer databases. The mean habitual intake of flavan-3-ol monomers, theaflavins and PA ranged from 181 mg/d (Czech Republic) to 793 mg/d (Ireland). The highest intakes of flavan-3-ol monomers and theaflavins were observed in Ireland (191/505 mg/d) and the lowest intakes in Spain (24/9 mg/d). In contrast, the daily intake of PA was highest in Spain (175 mg/d) and lowest in The Netherlands (96 mg/d). Main sources were tea (62 %), pome fruits (11 %), berries (3 %) and cocoa products (3 %). Tea was the major single contributor to monomer intake (75 %), followed by pome fruits (6 %). Pome fruits were also the main source of PA (28 %). The present study provides important data on the population-based intake of flavanols in the EU and demonstrates that dietary intake amounts for flavan-3-ol monomers, PA and theaflavins vary significantly across European countries. The average habitual intake of flavan-3-ols is considerably below the amounts used in most dietary intervention studies
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Associations between flavan-3-ol intake and CVD risk in the Norfolk cohort of the European Prospective Investigation into Cancer (EPIC-Norfolk)
This is the final published version. It first appeared at http://www.sciencedirect.com/science/article/pii/S0891584915001173.Dietary intervention studies suggest that flavan-3-ol intake can improve vascular function and reduce the risk of cardiovascular diseases (CVD). However, results from prospective studies failed to show a consistent beneficial effect. Associations between flavan-3-ol intake and CVD risk in the Norfolk arm of the European Prospective Investigation into Cancer and Nutrition (EPIC-Norfolk) were investigated. Data were available from 24,885 (11,252 men; 13,633 women) participants, recruited between 1993 and 1997 into the EPIC-Norfolk study. Flavan-3-ol intake was assessed using 7-day food diaries and the FLAVIOLA Flavanol Food Composition database. Missing data for plasma cholesterol and vitamin C were imputed using multiple imputation. Associations between flavan-3-ol intake and blood pressure at baseline were determined using linear regression models. Associations with CVD risk were estimated using Cox regression analyses. Median intake of total flavan-3-ols was 1034mg/d (range: 0-8531mg/d) for men and 970mg/d (0-6695mg/d) for women, median intake of flavan-3-ol monomers was 233mg/d (0-3248mg/d) for men and 217 (0-2712mg/d) for women. There were no consistent associations between flavan-3-ol monomer intake and baseline systolic and diastolic blood pressure (BP). After 286,147 person-years of follow-up, there were 8463 cardiovascular events and 1987 CVD related deaths; no consistent association between flavan-3-ol intake and CVD risk (HR 0.93, 95% CI: 0.87; 1.00; Q1 vs Q5) or mortality was observed (HR 0.93, 95% CI: 0.84; 1.04). Flavan-3-ol intake in EPIC-Norfolk is not sufficient to achieve a statistically significant reduction in CVD risk.We thank all EPIC-Norfolk study participants and staff for their contribution to the study. We thank the members of the FLAVIOLA consortium for their critical review of the manuscript. The present study was supported by the EU (Grant 226588, “Flaviola”) and an unrestricted grant from Mars, Inc. Mars, Inc. had no role in the design and analysis of the study or in the writing of this article. EPIC-Norfolk is supported by Cancer Research UK (SP2024-0201 and SP2024-0204) and the Medical Research Council (G9502233). H.S. is employed by MARS, Inc., a member of the FLAVIOLA research consortium and a company engaged in flavanol research and flavanol-related commercial activities. None of the other authors has a conflict of interest to declare
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