Evaluation of the indication for surgical extraction of third molars according to the oral surgeon and the primary care dentist. Experience in the Master of Oral Surgery and Implantology at Barcelona University Dental School

Introduction: Third molar extraction is the most frequent procedure in oral surgery. The present study evaluates the indication of third molar extraction as established by the primary care dentist (PCD) and the oral surgeon, and compares the justification for extraction with the principal reason for patient consultation. Patients and method: A descriptive study was made of 319 patients subjected to surgical removal of a third molar in the context of the Master of Oral Surgery and Implantology (Barcelona University Dental School, Barcelona, Spain) between July 2004 and March 2005. The following parameters were evaluated: sex, age, molar, type of impaction, position according to the classifications of Pell and Gregory and of Winter, and the reasons justifying extraction. Results: The lower third molars were the most commonly extracted molars (73.7%). A total of 69.6% of the teeth were covered by soft tissues only. Fifty-six percent of the lower molars corresponded to Pell and Gregory Class IIB, while 42.1% were in the vertical position. The most common reason for patient reference to our Service of Oral Surgery on the part of the PCD was prophylactic removal (51.0% versus 46.1% in the case of the oral surgeon). Discussion and conclusions. Our results show prophylaxis to be the principal indication of third molar extraction, followed by orthodontic reasons. Regarding third molars with associated clinical symptoms or signs, infectious disease-including pericoronitis- was the pathology most often observed by the oral surgeon, followed by caries. This order of frequency was seen to invert in the case of third molars referred for extraction by the PCD. A vertical position predominated among the third molars with associated pathology

On games corresponding to sequencing situations with precedence relations

In this paper we study a class of cooperative sequencing games that arise from one-machine sequencing situations in which chain precedence relations are imposed on the jobs. It is shown that these sequencing games are convex.

Personal relations and their effect on behavior in an organizational setting: an experimental study

We study how personal relations affect performance in organizations. In the experimental game we use a manager has to assign different degrees of decision power to two employees. These two employees then have to make distributive decisions which affect themselves and the manager. Our focus is on the effects on managers' assignment of decision power and on employees' distributive decisions of one of the employees and the manager knowing each other personally. Our evidence shows that managers tend to favor employees that they personally know and that these employees tend, more than other employees, to favor the manager in their distributive decisions. However, this behavior does not affect the performance of the employees that do not know the manager. All these effects are independent of whether the employees that know the manager are more or less productive than those who do not know the manager. The results shed light on discrimination and nepotism and its consequences for the performance of family firms and other organizations.

The Politics of Intergovernmental Fiscal Relations in Argentina

The search for political determinants of intergovernmental fiscal relations has shaped much of the recent literature on the economic viability of federalism. This study assesses the explanatory power of two competing views about intergovernmental transfers; one emphasizing the traditional neoclassical approach to federal-subnational fiscal relations and the other suggesting that transfers are contingent on the political fortunes and current political vulnerability of each level of government. The author tests these models using data from Argentina, a federation exhibiting one of the most decentralised fiscal systems in the world and severe imbalances in the territorial distribution of legislative and economic resources. It is shown that overrespresented provinces ruled by governors who belong to opposition parties can bring into play their political overrepresentation to attract shares of federal transfers beyond social welfare criteria and to shield themselves from unwanted reforms to increase fiscal co-responsibilty. This finding suggests that decision makers in federal countries must pay close heed to the need to synchronize institutional reforms and fiscal adjustment.

Sport and international relations (1913-1939): the 1936 Popular Olympiad

This document includes the results of the research undertaken by the authors on the attempts to organise a Popular Olympiad in Barcelona in 1936.

Globalization and international relations: the Olympic Movement and European Integration

Essay elaborated by Shaelyne Johnson, undergraduate student of Global Studies at the University of California-Santa Barbara, during her internship at CEO-UAB for the academic course 2008/2009. She compares the organisational structure, goals and objectives of the institutions in the Olympic Movement and the European Integration, in order to find connections between both movements which were caused by globalization. The paper begins with an introduction of the changing world nowadays, followed by an overview on the structural similarities in the historical unfolding between these two parallel movements and, before concluding, new means for international relations are considered. This document is available in English through the digital library at the CEO-UAB Portal of Olympic Studies and the digital repository RECERCAT.

Modelling Interbank Relations during the International Financial Crisis

This paper examines the effects of the current financial crisis on the correlations of four international banking stocks. We find that in the beginning of the crisis banks generally show a transition to a higher correlation followed by a dramatic decline towards the end of 2008. These findings are consistent with both traditional contagion theory and the more recent network theory of contagion. JEL classifications: C51; G15 Keywords: Financial Crises; Contagion; Interbank Markets.

Isomorphism relations on computable structures

"Vegeu el resum a l'inici del document del fitxer adjunt"

On Borel equivalence relations in generalized Baire space

"Vegeu el resum a l'inici del document del fitxer adjunt."

On [summation of 1 raised to the power 1] equivalence relations over the natural numbers

"Vegeu el resum a l'inici del document del fitxer adjunt"

EU “actorness” in International Relations: The Non-Proliferation Policy of the EU in the Southern Mediterranean

El punt de partida d'aquesta investigació és una retòrica molt utilitzada que la UE és un actor global. En vista d'això, la no proliferació de la política comunitària al sud de la Mediterrània s'examina. L'estudi es realitza sobre la base de la conceptualització de la UE "actorness" ia través d'alguns criteris (context extern, l'evolució de l'aparell de política exterior de la UE, la Unió Europea l'auto-presentació i la percepció de tercers, la consistència i la disponibilitat d'instruments de política i accions concretes) que involucren tant factors ideacionals i materials, d'acord amb el "pluralisme metodològic". Aquest marc conceptual va ajudar a avaluar la no proliferació de la política comunitària en aquesta regió en particular on la UE té interessos i bones raons per actuar. Cada un dels criteris de manifest els avantatges i desavantatges de la UE "actorness" en aquest camp seleccionat i la caixa. Aquest document sosté que la no proliferació "actorness" de la UE a la regió del sud de la Mediterrània ha estat limitat a causa d'una varietat de raons.