887 resultados para Contexts of change and accountability


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[spa] En este trabajo se analiza con datos de España los efectos de la corrupción local sobre los resultados electorales. En base a las noticias publicadas entre 1996 y 2009, se construye una nueva base de datos que recoge los casos de corrupción y noticias relativas a cambios en los planes urbanísticos que no han seguido el procedimiento legal. La base de datos muestra que los primeros escándalos de corrupción urbanística surgieron durante el mandato electoral de 1999-2003, pero que éstos alcanzaron sus niveles máximos justo antes de las elecciones de 2007. Se estima una ecuación del porcentaje de voto obtenido por el partido en el poder en estas elecciones locales y se encuentra que la pérdida media de voto después de un caso de corrupción se sitúa alrededor del 4%. Este efecto es más elevado (del 9%) si el caso de corrupción ha recibido una amplia cobertura por los diarios. Los efectos estimados para las elecciones de 2003 son significativamente inferiores. Cuando se consideran los casos en que los políticos han tenido cargas judiciales por corrupción y amplia cobertura por los diarios, la pérdida de voto asciende hasta el 12%. No obstante, la cobertura por los diarios genera un efecto negativo en el voto incluso cuando no hay cargas judiciales.

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[eng] We analyze the equilibrium of a multi-sector exogenous growth model where the introduction of minimum consumption requirements drives structural change. We show that equilibrium dynamics simultaneously exhibt structural change and balanced growth of aggregate variables as is observed in US when the initial intensity of minimum consumption requirements is sufficiently small. This intensity is measured by the ratio between the aggregate value of the minimum consumption requirements and GDP and, therefore, it is inversely related with the level of economic development. Initially rich economies benefit from an initially low intensity of the minimum consumption requirements and, as a consequence, these economies end up exhibiting balanced growth of aggregate variables, while there is structural change. In contrast, initially poor economies suffer from an initially large intensity of the minimum consumption requirements, which makes the growth of the aggregate variables unbalanced during a very large period. These economies may never exhibit simultaneously balanced growth of aggregate variables and structural change.

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Tutkimuksen päätavoite on selvitää infocom-toimialan pk-yritysten kansainväliset kasvustrategiat. Aluksi on tarkasteltu kasvua edesauttaneita ja hidastaneita tekijöitä, jotka muodostavat pohjan kansainvälisen kasvun suunnittelulle. Näiden pohjalta on aikaisemmin esitettyihin teoriamalleihin ja yritysten kansainvälistymisen asteeseen yhdistettynä määritelty infocom-toimialan pk-yrityksten kansainväliset kasvustrategiavaihtoehdot. Tutkimuksen tarkasteluun on vaikuttanut born global-ilmiö, jonka pääpiirre on nopea kansainvälistyminen yrityksen aikaisessa kehitysvaiheessa. Työn empiirisessä osassa on havainnollistettu teoriassa käsiteltyjä kansainväliseen kasvuun liittyviä tekijöitä. Empiirisessä osassa on käytetty sekä kvantitatiivisia että kvalitatiivisia menetelmiä. Kvantitatiivinen survey tutkimus on pohjautunut aineistoon, joka on kerätty vuosina 1999-2000 Telecom Business Research Centerissä Lappeenrannassa. Kvalitatiivisessa case-tutkimuksessa on haastateltu infocom-toimialan pk-yrityksiä. Nopeasti kehittyvän infocom-toimialan pk-yrityksille kansainvälistyminen on haaste ja tärkein menestyksen edellytys. Pk-yritysten kasvuresurssit ovat rajalliset, mutta lisääntyvän verkostoitumisen myötä on yritysten välisestä yhteistyöstä saavutettu etuja, jotka ovat mahdollistaneet kansainvälisen kasvun. Markkinoiden muutosnopeus on suuri ja siksi strategisen suunnittelun aikaväli lyhenee. Kansainvälisiä kasvustrategioita muodostettaessa yritykset joutuvat samanaikaisesti turvautumaan useampaan eri kasvustrategiaan, joiden yhdistelmänä yritysten merkittävimmäksi kasvustrategiaksi muodostuvat hybridit kasvustrategiat.

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Genome-wide association studies (GWAS) have identified more than 100 genetic variants contributing to BMI, a measure of body size, or waist-to-hip ratio (adjusted for BMI, WHRadjBMI), a measure of body shape. Body size and shape change as people grow older and these changes differ substantially between men and women. To systematically screen for age- and/or sex-specific effects of genetic variants on BMI and WHRadjBMI, we performed meta-analyses of 114 studies (up to 320,485 individuals of European descent) with genome-wide chip and/or Metabochip data by the Genetic Investigation of Anthropometric Traits (GIANT) Consortium. Each study tested the association of up to ~2.8M SNPs with BMI and WHRadjBMI in four strata (men ≤50y, men >50y, women ≤50y, women >50y) and summary statistics were combined in stratum-specific meta-analyses. We then screened for variants that showed age-specific effects (G x AGE), sex-specific effects (G x SEX) or age-specific effects that differed between men and women (G x AGE x SEX). For BMI, we identified 15 loci (11 previously established for main effects, four novel) that showed significant (FDR<5%) age-specific effects, of which 11 had larger effects in younger (<50y) than in older adults (≥50y). No sex-dependent effects were identified for BMI. For WHRadjBMI, we identified 44 loci (27 previously established for main effects, 17 novel) with sex-specific effects, of which 28 showed larger effects in women than in men, five showed larger effects in men than in women, and 11 showed opposite effects between sexes. No age-dependent effects were identified for WHRadjBMI. This is the first genome-wide interaction meta-analysis to report convincing evidence of age-dependent genetic effects on BMI. In addition, we confirm the sex-specificity of genetic effects on WHRadjBMI. These results may provide further insights into the biology that underlies weight change with age or the sexually dimorphism of body shape.

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We examine the phenomenon of hydrodynamic-induced cooperativity for pairs of flagellated micro-organism swimmers, of which spermatozoa cells are an example. We consider semiflexible swimmers, where inextensible filaments are driven by an internal intrinsic force and torque-free mechanism (intrinsic swimmers). The velocity gain for swimming cooperatively, which depends on both the geometry and the driving, develops as a result of the near-field coupling of bending and hydrodynamic stresses. We identify the regimes where hydrodynamic cooperativity is advantageous and quantify the change in efficiency. When the filaments' axes are parallel, hydrodynamic interaction induces a directional instability that causes semiflexible swimmers that profit from swimming together to move apart from each other. Biologically, this implies that flagella need to select different synchronized collective states and to compensate for directional instabilities (e.g., by binding) in order to profit from swimming together. By analyzing the cooperative motion of pairs of externally actuated filaments, we assess the impact that stress distribution along the filaments has on their collective displacements.

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BACKGROUND: Epidemiological data on HNC are often reported aggregated despite their anatomical and histological heterogeneity. In Germany, few studies have analyzed incidence and mortality trends separately for specific anatomic sites. Furthermore, little is known about whether the incidence of HPV-associated tumour entities of the head and neck region has increased. METHODS: Based on cancer registry data from Rhineland-Palatinate from 2000 to 2009, age-standardized incidence and mortality rates were calculated for all HNC sites and localisation groups that might be HPV-associated according to the literature. Trends were analyzed by Joinpoint regression and reported as the annual percentage change (APC). RESULTS: Throughout the study period, 8 055 incident cases and 3 177 deaths were identified. The incidence rates of overall HNC increased among women (APC:+2.2%) and declined slightly among men (- 0.9%). Significantly increasing incidence rates among women were seen for tumours of the oral cavity (+2.7%) and the oropharynx (+3.6%). Among men, a significant decrease in incidence rates for tumours of the hypopharynx (-3.4%) and the larynx (-2.7%) are noteworthy. Cancers at HPV-associated sites showed increased incidence rates in men (+3.3%) and women (+4.3%). A decrease in mortality was found for tumours of the larynx in both sexes (-5.8% men,-9.1% women). CONCLUSIONS: A detailed analysis by localisation of HNC showed significant and often opposing trends for men and women regarding incidence and mortality.

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Ample evidence indicates that inhibitory control (IC), a key executive component referring to the ability to suppress cognitive or motor processes, relies on a right-lateralized fronto-basal brain network. However, whether and how IC can be improved with training and the underlying neuroplastic mechanisms remains largely unresolved. We used functional and structural magnetic resonance imaging to measure the effects of 2 weeks of training with a Go/NoGo task specifically designed to improve frontal top-down IC mechanisms. The training-induced behavioral improvements were accompanied by a decrease in neural activity to inhibition trials within the right pars opercularis and triangularis, and in the left pars orbitalis of the inferior frontal gyri. Analyses of changes in brain anatomy induced by the IC training revealed increases in grey matter volume in the right pars orbitalis and modulations of white matter microstructure in the right pars triangularis. The task-specificity of the effects of training was confirmed by an absence of change in neural activity to a control working memory task. Our combined anatomical and functional findings indicate that differential patterns of functional and structural plasticity between and within inferior frontal gyri enhanced the speed of top-down inhibition processes and in turn IC proficiency. The results suggest that training-based interventions might help overcoming the anatomic and functional deficits of inferior frontal gyri manifesting in inhibition-related clinical conditions. More generally, we demonstrate how multimodal neuroimaging investigations of training-induced neuroplasticity enable revealing novel anatomo-functional dissociations within frontal executive brain networks. Hum Brain Mapp 36:2527-2543, 2015. © 2015 Wiley Periodicals, Inc.

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Mergers and acquisitions (M&A) have played very important role in restructuring the pulp and paper industry (PPI). The poor performance and fragmented nature of the industry, overcapacity problems, and globalisation have driven companies to consolidate. The objective of this thesis was to examine how PPI acquirers’ have performed subsequent M&As and whether the deal characteristics have had any impact on performance. Based on the results it seems that PPI companies have not been able to enhance their performance in the long run after M&As although the per-formance of acquiring firms has remained above the industry median, and deal characteristics or the amount of premiums paid do not seem to have had any effect. The statistical significance of the results was tested with change model and regression analysis. Performance was assessed with accrual, cash flow, and market based indicators. Results are congruent with behavioural theory: managers and investors seem to be overoptimistic in determining the synergies from M&As.

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Accountability and transparency are of growing importance in contemporary governance. The academic literature have broadly studied the two concepts separately, defining and redefining them, and including them into various framework, sometimes mistakenly using them as synonyms. The relationship between the two concepts has, curiously, only been studied by a few scholars with preliminary approaches. This theoretical paper will focus on both concepts, trying first to describe them taking into account the various evolutions in the literature and the recent evolutions as well as the first attempts to link the two concepts. In order to show a new approach linking the concepts, four cases from the Swiss context will be portrayed and will demonstrate the necessity to reconsider the relationship between transparency and accountability. Consequently, a new framework, based on Fox's framework (2007) will be presented and theoretically delimited.

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BACKGROUND: Cognitive deficits have been reported during the early stages of bipolar disorder; however, the role of medication on such deficits remains unclear. The aim of this study was to compare the effects of lithium and quetiapine monotherapy on cognitive performance in people following first episode mania. METHODS: The design was a single-blind, randomised controlled trial on a cohort of 61 participants following first episode mania. Participants received either lithium or quetiapine monotherapy as maintenance treatment over a 12-month follow-up period. The groups were compared on performance outcomes using an extensive cognitive assessment battery conducted at baseline, month 3 and month 12 follow-up time-points. RESULTS: There was a significant interaction between group and time in phonemic fluency at the 3-month and 12-month endpoints, reflecting greater improvements in performance in lithium-treated participants relative to quetiapine-treated participants. After controlling for multiple comparisons, there were no other significant interactions between group and time for other measures of cognition. CONCLUSION: Although the effects of lithium and quetiapine treatment were similar for most cognitive domains, the findings imply that early initiation of lithium treatment may benefit the trajectory of cognition, specifically verbal fluency in young people with bipolar disorder. Given that cognition is a major symptomatic domain of bipolar disorder and has substantive effects on general functioning, the ability to influence the trajectory of cognitive change is of considerable clinical importance.

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Accountability and transparency are of growing importance in contemporary governance. The academic literature have broadly studied the two concepts separately, defining and redefining them, and including them into various framework, sometimes mistakenly using them as synonyms. The relationship between the two concepts has, curiously, only been studied by a few scholars with preliminary approaches. This theoretical paper will focus on both concepts, trying first to describe them taking into account the various evolutions in the literature and the recent evolutions as well as the first attempts to link the two concepts. In order to show a new approach linking the concepts, four cases from the Swiss context will be portrayed and will demonstrate the necessity to reconsider the relationship between transparency and accountability. Consequently, a new framework, based on Fox's framework (2007) will be presented and theoretically delimited.

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The main purpose of this study was to examine the changes in the prevalence, incidence, and characteristics of headache in childhood and adolescence. In addition, the predictors of the change in the occurrence of childhood headache and the association between adolescent headache and behavior were studied. The occurrence and characteristics of headache were investigated as part of a prospective follow-up study, where 6-year-old children and their families (n=1132) were followed to the age of 12-years (n=1126). The study design entailed both a cohort and case-control group. The incidence of headache and the association between headache and behavior were studied in another cohort, consisting of 11-year-old twins (n=5393), who were followed to the age of 17 (n=4159). The prevalence rates of headache increased during the follow-up, especially in boys whose mothers suffered from frequent headache. The incidence rates of frequent headache changed the most in girls between ages of 11 and 14. Early-onset migraine and tension-type headache were equal predictors of migraine at age 12. The age-related changes observed in pain localization, concurrent symptoms and triggers were considerable. Headache frequency was significantly associated with externalizing and internalizing problem behaviors and adaptive behaviors as rated by parents, but only with externalizing problem behaviors as rated by teachers. Headache both in children and adolescents is characterized by its changing nature. Its prevention and treatment should take familial, environmental and psychosocial aspects into account.

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Electrolyte solutions are of importance in a wide range of scientific contexts and as such have attracted considerable theoretical and experimental effort over many years. Nuclear Magnetic resonance provides a precise and versatile tool for investigation of electrolyte solutions, both in water and in organic solvents. Many structural and dynamic properties can be obtained through NMR experiments. The solution of aluminum chloride in water was studied. Different concentrations were taken for investigation. Independence of maximum line shift from concentration and acidity was shown. Six-coordinated structure of solvation shell was confirmed by experiments on 'H and 27A1 nuclei. Diffusion coefficients were studied. The solution of nickel chloride in methanol was studied. Lines, corresponding to coordinated and bulk methanol were found. Four-, five- and six-coordinated structures were found in different temperatures. The line for coordinated -OD group of deuterated methanol was observed on 2H spectrum for the first time. Partial deuteration of CH3 group was detected. Inability to observe coordinated -OH group was explained.