Search results for "dance"
showing 10 items of 2075 documents
Consequences of plant population size and density for plant-pollinator interactions and plant performance
2001
Summary 1 Habitat fragmentation and the resulting decline in the local abundance of plant species can affect biological interactions. We examined the effects of abundance on plant–pollinator interactions by observing the pollinator service and subsequent reproductive output of a mostly outbreeding, but self-compatible, plant, Lychnis viscaria, in experimental populations of different sizes (number of individuals) and densities (distance between individuals). 2 Bumblebees, the main pollinators of L. viscaria, preferred larger populations, but visitation rates were higher in sparser populations. Pollinators were attracted to the larger inflorescences in sparse populations, which were also m…
Lifting the Vendace, Coregonus albula, on the Life Table : Survival, Growth and Reproduction in Different Life-Stages during Very High and Low Abunda…
2021
We analyzed the variability in vendace population parameters in the context of a life table. Parameters related to growth, fecundity and survival were estimated for post-recruitment (age > 1 growing season) life stages of Lake Southern Konnevesi vendace in both very high and low population abundance regimes. Pre-recruitment survival producing population stability was then determined. We found a very strong compensatory density dependence in growth, fecundity and survival: during low abundance, a lifetime reproductive output of a female was almost 20 times that of the abundant regime. To maintain the low abundance regime, pre-recruitment survival must counterbalance it by decreasing to a ver…
Managerial Ability, Players’ Cultural Diversity, and Sporting and Economic Performance in English Soccer
2012
We use a large homemade database on professional soccer in England to estimate the relevance of managerial ability on performance and the managerial skills in keeping up cultural diversity. The team manager faces a set of very complex tasks. Not only he is the head coach of the soccer team, thus influencing sporting performance, but he can also have an impact on performance, by improving economic efficiency or by limiting the organization innovation in order to foster the creation of organizational routines. The sporting competitive advantage translates into economic and financial performance; therefore the manager is a dominant voice in the financial viability of the club, too. We also mea…
Tax Evasion and Tax Progressivity
2003
In a pure tax evasion framework in which the monetary penalty is a function of the evaded tax, more progressive income taxes will reduce tax evasion if income has to be declared. However, if tax payments have to be declared, higher tax progressivity will have no effects. Thus, the relationship between tax evasion and tax progressivity depends on whether income or taxes have to be divulged to tax authorities. If the fine is a function of undeclared income, higher tax progressivity will always raise evasion.
Time allocation during Higher education : a study of Brazilian, French and Spanish students
1995
International audience; The results we present enable us to highlight common features and disparities in the way students from the three countries organize their time. While the lecture attendance time varies little from one country to another, it is different for other elements of time use. The Spaniards in particular seem to spend more time on personal work and the Brazilians more often have paid employment. The initial comparison should however be regarded as provisional in that no systematic correlation was made with educational policies in each country. Certainly, the lack of grants system in Brazil is linked to the significant amount of available time spent on salaried work but it wou…
The measurement of rank mobility
2009
Abstract In this paper we investigate the problem of measuring social mobility when the social status of individuals is given by their rank. In order to sensibly represent the rank mobility of subgroups within a given society, we address the problem in terms of partial permutation matrices which include standard (“global”) matrices as a special case. We first provide a characterization of a partial ordering on partial matrices which, in the standard case of global matrices, coincides with the well-known “concordance” ordering. We then provide a characterization of an index of rank mobility based on partial matrices and show that, in the standard case of comparing global matrices, it is equi…
Interest rates, expectations and the credibility of the Bank of Spain
1995
The purpose of the paper is to pinpoint the date of the change of monetary policy regime which occurred in Spain during the year 1984, when it moved away from controlling monetary aggregates towards interest rate targeting. The most likely date for the change is estimated and, surprisingly, there is evidence that agents learned about the new intermediate target quite rapidly.A week after the change, the term structure of interest rates showed how market agents attributed much more informational content to interest rate changes than they had previously. Two types of transitions are tried: a one-step and a gradual logistic swithing function.
Concepto estereotipado de arte en películas clásicas Disney
2021
La cultura visual se compone de un conjunto de imágenes fijas o en movimiento que son utilizadas para generar un adoctrinamiento en quienes las consumen de forma pasiva. Se rescata Disney como productora de animación que perdura posicionamientos de la sociedad heteropatriarcal y se estudian largometrajes de su colección debido a la influencia que generan entre el público que los consumen a lo largo de un siglo de existencia. En esta ocasión se analiza de una manera cualitativa a través de una metodología de IBI o Investigación Basada en Imágenes una muestra de 10 películas clásicas Disney y protagonizadas por princesas. Concretamente, se atiende al concepto de arte y a la manera en la que l…
Evaluation of the perceived social impacts of the Formula E Grand Prix of Santiago de Chile David
2020
[Abstract] The aim of this study is to analyse residents' perception of the social impact of the Formula E Grand Prix of Santiago de Chile. A sample of 414 residents was collected through a questionnaire made up of 46 items regarding possible positive and negative impacts. Descriptive analysis, confirmatory factorial analysis and cluster analysis were performed. The results showed two groups with different perceptions of this sporting event: realistic (n=152) and favourable (n=162). Sociodemographic variables referring to education level, civil status, income level, location of the family residence and political orientation contribute to significantly differentiating the clusters. The varia…
Caractéristiques et fonctionnement des conseils d'administration français. Un état des lieux.
2004
International audience; Dans ce travail, nous décrivons les principales caractéristiques (taille des conseils, cumul des fonctions et indépendance des membres) de 97 conseils d'administration français en 2002 et leur fonctionnement (nombre de réunions et assiduité), ainsi que ceux des principaux comités spécialisés (comité d'audit, comité de rémunération, comité de nomination et comité stratégique). Nos résultats permettent de mettre en évidence une évolution très significative des conseils en France au cours des 20 dernières années, suite notamment à la publication des rapports Vienot (1995 et 1999) et Bouton (2002).