448 research outputs found
Unofficial Economic Activities and Fiscal Discipline in Hungary as Mirrored in Consecutive Enterprise Surveys on Tax Behaviour
The paper focuses on a segment of the hidden economy, i. e. on unofficial (unreported) economic activities of registered medium and large enterprises in Hungary. First we place the problem into a broader context, then we delimit those segments of unofficial economic activities our surveys are able to catch. The data from our 1996,1998 and 2001 enterprise surveys put us into a unique position: we are able to analyse the dynamics of some components of the hidden economy during the transition. Our surveys focus on the everyday practice of tax evasion and tax avoidance (including some of the various methods and techniques enterprises use to diminish their tax liabilities). These methods include underreporting activities and revenues, exaggerating (over-reporting) costs, using outsourcing to small subcontractors in order to provide “tax-efficient” labour, tailor-made remuneration packages to take advantage of loopholes, etc. While some of the tax planning methods clearly remain within the realm of legality, others may include tax dodging of the illegal kind. The borderlines between avoidance and evasion are necessarily blurred. We also deal with some other aspects of fiscal discipline and tax compliance and enterprise behaviour (tax delays, tax litigation, etc .). Our data unanimously support the hypothesis that the importance of unofficial economic activity of registered medium and large enterprises radically diminished since 1996. As we also have information about the selected enterprise group’s opinion on the unofficial activities of their business partners and main domestic competitors, our data enable us to generalise this finding to the whole registered business sector.
Body silhouettes as a tool to reflect obesity in the past
Life course data on obesity may enrich the quality of epidemiologic studies analysing health consequences of obesity. However, achieving such data may require substantial resources. We investigated the use of body silhouettes in adults as a tool to reflect obesity in the past. We used large population-based samples to analyse to what extent self-reported body silhouettes correlated with the previously measured (9-23 years) body mass index (BMI) from both measured (European Community Respiratory Health Survey, N = 3 041) and self-reported (Respiratory Health In Northern Europe study, N = 3 410) height and weight. We calculated Spearman correlation between BMI and body silhouettes and ROC-curve analyses for identifying obesity (BMI ≥30) at ages 30 and 45 years. Spearman correlations between measured BMI age 30 (±2y) or 45 (±2y) and body silhouettes in women and men were between 0.62-0.66 and correlations for self-reported BMI were between 0.58-0.70. The area under the curve for identification of obesity at age 30 using body silhouettes vs previously measured BMI at age 30 (±2y) was 0.92 (95% CI 0.87, 0.97) and 0.85 (95% CI 0.75, 0.95) in women and men, respectively; for previously self-reported BMI, 0.92 (95% CI 0.88, 0.95) and 0.90 (95% CI 0.85, 0.96). Our study suggests that body silhouettes are a useful epidemiological tool, enabling retrospective differentiation of obesity and non-obesity in adult women and men
Auditory-motor entrainment and phonological skills: precise auditory timing hypothesis (PATH)
Phonological skills are enhanced by music training, but the mechanisms enabling this cross-domain enhancement remain unknown. To explain this cross-domain transfer, we propose a precise auditory timing hypothesis (PATH) whereby entrainment practice is the core mechanism underlying enhanced phonological abilities in musicians. Both rhythmic synchronization and language skills such as consonant discrimination, detection of word and phrase boundaries, and conversational turn-taking rely on the perception of extremely fine-grained timing details in sound. Auditory-motor timing is an acoustic feature which meets all five of the pre-conditions necessary for cross-domain enhancement to occur (Patel, 2011, 2012, 2014). There is overlap between the neural networks that process timing in the context of both music and language. Entrainment to music demands more precise timing sensitivity than does language processing. Moreover, auditory-motor timing integration captures the emotion of the trainee, is repeatedly practiced, and demands focused attention. The PATH predicts that musical training emphasizing entrainment will be particularly effective in enhancing phonological skills
A nonlinear updating algorithm captures suboptimal inference in the presence of signal-dependent noise
Bayesian models have advanced the idea that humans combine prior beliefs and sensory observations to optimize behavior. How the brain implements Bayes-optimal inference, however, remains poorly understood. Simple behavioral tasks suggest that the brain can flexibly represent probability distributions. An alternative view is that the brain relies on simple algorithms that can implement Bayes-optimal behavior only when the computational demands are low. To distinguish between these alternatives, we devised a task in which Bayes-optimal performance could not be matched by simple algorithms. We asked subjects to estimate and reproduce a time interval by combining prior information with one or two sequential measurements. In the domain of time, measurement noise increases with duration. This property takes the integration of multiple measurements beyond the reach of simple algorithms. We found that subjects were able to update their estimates using the second measurement but their performance was suboptimal, suggesting that they were unable to update full probability distributions. Instead, subjects’ behavior was consistent with an algorithm that predicts upcoming sensory signals, and applies a nonlinear function to errors in prediction to update estimates. These results indicate that the inference strategies employed by humans may deviate from Bayes-optimal integration when the computational demands are high
Evidence for multiple rhythmic skills
Rhythms, or patterns in time, play a vital role in both speech and music. Proficiency in a number of rhythm skills has been linked to language ability, suggesting that certain rhythmic processes in music and language rely on overlapping resources. However, a lack of understanding about how rhythm skills relate to each other has impeded progress in understanding how language relies on rhythm processing. In particular, it is unknown whether all rhythm skills are linked together, forming a single broad rhythmic competence, or whether there are multiple dissociable rhythm skills. We hypothesized that beat tapping and rhythm memory/sequencing form two separate clusters of rhythm skills. This hypothesis was tested with a battery of two beat tapping and two rhythm memory tests. Here we show that tapping to a metronome and the ability to adjust to a changing tempo while tapping to a metronome are related skills. The ability to remember rhythms and to drum along to repeating rhythmic sequences are also related. However, we found no relationship between beat tapping skills and rhythm memory skills. Thus, beat tapping and rhythm memory are dissociable rhythmic aptitudes. This discovery may inform future research disambiguating how distinct rhythm competencies track with specific language functions
Characterizing practices and the sanitary status of farms of Creole and Creole-like pigs in Martinique
Notice à reprendre pas de clé UT au 27 juin 2019The study aimed at characterizing the management of 27 pig farms in the frame-work of a conservation program of the Creole pig of Martinique. Blood samples were collected on 67 pigs for serological analysis. A multivariate analysis dis-criminated six groups of farms: group 1 (n = 9) consisted of family farms with fewer than three boars and a higher age of replacement of reproducers than the other farms (6.2 vs 5.0 years, p < 0.01); group 2 (n = 5) consisted of small farms with two matings per sow per yearand with more than two livestock species; group 3 (n = 5) consisted of farms with more than four boars and more than four sows, with batch management and a feeding diet mainly based on industrial concentrates; group 4 (n = 4) consisted of family farms with pigs reared outdoors and a feeding diet mainly based on local resources (50 to 100% of the total diet content); group 5 (n = 3) consisted of mixed farming systems with more than three boars and more than 10 sows; and group 6 consisted of a farm with a high number of females without batch management. The analysis of serological data showed that, regardless of the farming system (outdoor, semi outdoor, indoor), the sanitary status of pig farms in Martinique was good, with no identified con-tagious disease. The typology obtained and the results on the sanitary status of farms are encouraging signs to pursue the project aiming at the conservation of Creole pigs by exchange of healthy reproducers between farmers and the devel-opment of a niche market around heritage values
Personalized treatment of asthma: the importance of sex and gender differences
An individual's sex (nominally 'male' or 'female', based on biological attributes) and gender (a complex term, referring to socially constructed roles, behaviors, and expressions of identity) influences the clinical course of asthma in several ways. The physiological development of the lungs and effects of sex hormones may explain why more boys have asthma than girls, and post-puberty, more women have asthma than men. Female sex hormones have an impact throughout the lifespan and are associated with poor asthma control. Gender may influence exposure to asthma triggers, and sex and gender can influence the prevalence of comorbidities and interactions with healthcare professionals (HCPs). Despite widely reported sex and gender-based differences in asthma and asthma management, these issues are frequently not considered by HCPs. There is also inconsistency around use of 'sex' and 'gender' in scientific discourse, and research is needed to better define sex and gender-based differences and how they might interact to influence asthma outcomes. This review outlines the impact an individual's sex and gender can have on the pathogenesis, clinical course, diagnosis, treatment, and management of asthma
BMC Public Health
BACKGROUND: Previous studies on asthma mortality and hospitalizations in Reunion Island indicate that this French territory is particularly affected by this pathology. Epidemiological studies conducted in schools also show higher prevalence rates in Reunion than in Mainland France. However, no estimates are provided on the prevalence of asthma among adults. In 2016, a cross-sectional survey was conducted to estimate the prevalence of asthma and to identify its associated factors in the adult population of Reunion Island. METHODS: A random sample of 2419 individuals, aged 18-44 years, was interviewed by telephone using a standardized, nationally validated questionnaire. Information was collected on the respiratory symptoms, description of asthma attacks and triggering factors for declared asthmatics, as well as data on the indoor and outdoor home environment. "Current asthma" was defined as an individual declaring, at the time of the survey, having already suffered from asthma at some point during his/her life, whose asthma was confirmed by a doctor, and who had experienced an asthma attack in the last 12 months or had been treated for asthma in the last 12 months. "Current suspected asthma" was defined as an individual presenting, in the 12 months preceding the study, groups of symptoms suggestive of asthma consistent with the literature. RESULTS: The estimated prevalence of asthma was 5.4% [4.3-6.5]. After adjustment, women, obesity, a family member with asthma, tenure in current residence and presence of indoor home heating were associated with asthma. The prevalence of symptoms suggestive of asthma was 12.0% [10.2-13.8]. After adjustment, marital status, passive smoking, use of insecticide sprays, presence of mold in the home and external sources of atmospheric nuisance were associated with the prevalence of suspected asthma. CONCLUSION: Preventive actions including asthma diagnosis, promotion of individual measures to reduce risk exposure as well as the development of study to improve knowledge on indoor air allergens are recommended
Occup Environ Med
OBJECTIVES: Asthma has significant occupational consequences. The objective of our study was to investigate the links between asthma and the career path, taking into account gender and age at asthma onset. METHODS: Using cross-sectional data collected at inclusion in the French CONSTANCES cohort in 2013-2014, we studied the links between each career path indicator (number of job periods, total duration of employment, numbers of part-time jobs and work interruptions due to unemployment or health issues, employment status at inclusion) on the one hand, and current asthma and asthma symptom score in the last 12 months on the other hand, as reported by the participants. Multivariate analyses were performed separately for men and women using logistic and negative binomial regression models adjusted for age, smoking status, body mass index and educational level. RESULTS: When the asthma symptom score was used, significant associations were observed with all of the career path indicators studied: a high symptom score was associated with a shorter total duration of employment as well as a greater number of job periods, part-time jobs and work interruptions due to unemployment or health issues. These associations were of similar magnitude in men and women. When current asthma was used, the associations were more pronounced in women for some career path indicators. CONCLUSION: The career path of asthmatic adults is more often unfavourable than that of those without asthma. Efforts should be made to support people with asthma in the workplace, in order to maintain employment and facilitate the return to work.La cohorte CONSTANCES - Infrastructure épidémiologique ouverte pour la recherche et la surveillanc
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