Effects of artisanal fisheries on the scorpaenids (Scorpaena spp.) reproduction in the marine protected area of Cap de Creus (NW Mediterranean)

Rockfish species are considered important to the ecology of rocky-reef communities which constitute a key habitat in many coastal marine protected areas (MPAs). These species, which are commercially valuable for artisanal fisheries in the Mediterranean, display particular biological traits that could render them vulnerable to fishing. In this study we monitored the artisanal fisheries of scorpaenids (Scorpaena spp.) in the MPA of Cap de Creus (northwestern Mediterranean) in order to estimate the status of their populations, to link captures with the reproduction of these species, and to evaluate the potential impact that artisanal fishing may have on them. Data from onboard sampling with artisanal fishermen and from fisheries statistics (total landings) were used. Total landings and catch per unit of effort (CPUE) follow a clearly seasonal cycle, with a prominent peak during the summer months coinciding with their spawning season, which may be due to mating behavior prior to fertilization. Although maximum sizes are bigger inside the MPA than in non-protected areas situated close by, a significant percentage of individuals caught inside the MPA are below their size at sexual maturity. Although rockfish seem to be favored by the partial protection of the MPA, the allowed artisanal fisheries are probably impacting the reproduction of these species

Bifurcations of homoclinic tangency in two-dimensional area-preserving and reversible maps

Report for the scientific sojourn at the Research Institute for Applied Mathematics and Cybernetics, Nizhny Novgorod, Russia, from July to September 2006. Within the project, bifurcations of orbit behavior in area-preserving and reversible maps with a homoclinic tangency were studied. Finitely smooth normal forms for such maps near saddle fixed points were constructed and it was shown that they coincide in the main order with the analytical Birkhoff-Moser normal form. Bifurcations of single-round periodic orbits for two-dimensional symplectic maps close to a map with a quadratic homoclinic tangency were studied. The existence of one- and two-parameter cascades of elliptic periodic orbits was proved.

Investor protection, risk sharing and inequality

This paper studies the relationship between investor protection, financial risk sharing and income inequality. In the presence of market frictions, better protection makes investors more willing to take on entrepreneurial risk while lending to firms. This implies lower cost of external finance and better risk sharing between financiers and entrepreneurs. Investor protection, by boosting the market for risk sharing plays the twofold role of encouraging agents to undertake risky enterprises and providing them with insurance. By increasing the number of risky projects, it raises income inequality. By extending insurance to more agents, it reduces it. As a result, the relationship between the size of the market for risk sharing and income inequality is hump-shaped. Empirical evidence from a cross-section of sixty-eight countries, and a panel of fifty countries over the period 1976-2000, supports the predictions of the model.

The EU as a security provider in its neighbourhood: the case of non-proliferation of WMD in the Mediterranean area

As a consequence of the terrorist attacks of 9/11 and the US-led war against Iraq, WMD and their proliferation have become a central element of the EU security agenda. In December 2003, the European Council adopted even a EU Strategy against Proliferation of WMD. The approach adopted in this Strategy can be largely described as a ‘cooperative security provider’ approach and is based on effective multilateralism, the promotion of a stable international and regional environment and the cooperation with key partners. The principal objective of this paper is to examine in how far the EU has actually implemented the ‘cooperative security provider’ approach in the area which the Non-proliferation Strategy identifies as one of its priorities – the Mediterranean. Focusing on the concept of security interdependence, the paper analyses first the various WMD dangers with which the EU is confronted in the Mediterranean area. Afterwards, it examines how the EU has responded to these hazards in the framework of the Barcelona process and, in particular, the new European Neighbourhood Policy. It is argued that despite its relatively powerful rhetoric, the EU has largely failed, for a wide range of reasons, to apply effectively its non-proliferation approach in the Mediterranean area and, thus, to become a successful security provider.

Ecoetiques de serveis als establiments hotelers del Parc Natural de l'Alt Pirineu

En el present projecte s’analitza el turisme i la seva relació amb la figura del Parc Natural de l’Alt Pirineu (a partir d’ara PNAP). A la zona d’estudi el turisme és una de les principals activitats econòmiques, donat el notable valor ecologico-cultural de l’indret. L’activitat turística al PNAP és molt diversa, és per aquest motiu que s’observen diverses repercussions en l’entorn segons la tipologia de turisme que es doni. Donada aquesta realitat, l’estudi que es presenta està centrat en el sector hoteler de l’àmbit d’influència del PNAP. D’aquesta forma, s’analitza i diagnostica l’estat de qualitat ambiental dels hotels i pensions que componen el sector. Les eines emprades en aquest estudi han estat dues. Primerament, s’avalua la implantació del Distintiu de Garantia de Qualitat Ambiental (a partir d’ara DGQA). El DGQA és una ecoetiqueta de serveis, de recent creació, que atorga la Generalitat de Catalunya a partir de la revisió de l’establiment per mitjà d’un tècnic autoritzat. En segon terme, s’ha creat i emprat un producte anomenat Enquesta Bàsica d’Auto-xequeig de Qualitat Ambiental (a partir d’ara EBAQA). L’EBAQA té una doble finalitat. Per una banda respon a la necessitat d’autodiagnosi que tenen els propietaris, al ser aquests qui realitzen l’enquesta. Per altra banda, permet determinar quin és l’estat de qualitat ambiental del sector hoteler a la zona d’estudi a partir de l’avaluació de 35 dels 67 establiments existents a l’àmbit d’influència del PNAP, el qual representa una mostra del 61%.

The spatial inequality of wage income in Barcelona Metropolitan Area

ABSTRACT The measure and estimation of income levels in Barcelona Metropolitan Area (BMA) goes back a long way. Using different approaches and focusing on different municipalities, there is a lot of work in the field. The majority of the literature has focused on the estimation of income levels using variables related to consumption. The empirical evidence on wage differentials has shown an important growth during 80’s and 90’s especially in United Kingdom and USA. Less is known on spatial distribution of inequality. This paper presents a new data set for analyzing spatial distribution of wage income. This data is obtained by matching Wage Structure Survey (WSS) with data from Census disaggregated by census tracts. In this way we have a unique data set with wage incomes for every census track for 36 municipalities belonging to BMA. We develop a descriptive analysis of spatial distribution, testing for spatial autocorrelation and use the family of Generalised Entropy Indices to measure inequality. Properties of the index allow us to decompose inequality into inter and intra-municipality measures. Since we have two cross-sectional data for WSS (1995-2002) we can also analyze the evolution of the inequality in this period of economic growth. Key words: spatial distribution of wages, spatial autocorrelation, inequality indices.

Still in the Era of Area Studies? Political-Scientific Perspectives on European Competition Policy in the 2000s

This note reviews the political-scientific literature on European competition policy (ECP) in the 2000s. Based on a data set extracted from four well-known journals, and using an upfront methodology and explicit criteria, it analyzes the literature both quantitatively and qualitatively. On the quantitative side, it shows that, although a few sub-policy areas are still neglected, ECP is not the under-researched policy it used to be. On the qualitative side, the literature has greatly improved since the 1990s: Almost all articles now present a clear research question, and most advance specific theoretical claims/hypotheses. Yet, improvements can be made on research design, statistical testing, and, above all, state-of-the-art theorizing (e.g. in the game-theoretical treatment of delegation problems). Indeed, it is paradoxical that ECP specialists do not pay more attention to theoretical questions which are so central to the actual policy area they study.

Estudi del jardí romàntic del Palau Novella, Parc del Garraf

Durant molts anys, els jardins del Palau Novella han patit una sèrie de canvis que han desembocat en el seu abandonament i degradació. La falta de gestió i manteniment ha comportat l’aparició de fitopatologies en una part important dels individus, així com la colonització d’espècies invasores, tant de flora com de faun,a o la degradació dels elements arquitectònics. D’altra banda, la seva importància com a connector o la presència d’arbres i comunitats d’especial interès, li atorguen a la zona un gran valor a nivell ecològic. Per tant, tant per a la seva protecció, com per a la millora de les condicions actuals de degradació, seran necessàries una sèrie de mesures correctores que ajudin a restaurar i conservar la zona, de manera que, l’objectiu principal d’aquest estudi, serà l’avaluació de tots els factors, tant positius com negatius, per tal de poder elaborar les mesures esmentades.

Investor protection and income inequality: risk sharing vs risk taking

This paper studies the relationship between investor protection, entrepreneurial risk taking and income inequality. In the presence of market frictions, better protection makes investors more willing to take on entrepreneurial risk when lending to firms, thereby improving the degree of risk sharing between financiers and entrepreneurs. On the other hand, by increasing risk sharing, investor protection also induces more firms to undertake risky projects. By increasing entrepreneurial risk taking, it raises income dispersion. By reducing the risk faced by entrepreneurs, it reduces income volatility. As a result, investor protection raises income inequality to the extent that it fosters risk taking, while it reduces it for a given level of risk taking. Empirical evidence from a panel of forty-five countries spanning the period 1976-2000 supports the predictions of the model.

Anàlisi ambiental de les platges de Sitges: evolució de la qualitat del litoral i estudi d'impactes

L’explosió del sector turístic experimentat en les costes catalanes des de principis dels anys 60 ha provocat un important impacte sobre el medi litoral català i el seu principal atractiu turístic, les platges. Sitges és un municipi annex a una important zona urbana (Barcelona), i s'ofereix com a indret de segona residència i ciutat de vacances, sobretot a l’estiu, incrementant fortament la pressió sobre el medi. L'objectiu principal d'aquest projecte ha estat estudiar les pertorbacions sobre alguns aspectes del sistema litoral Sitgetà: el perfil litoral i la dinàmica sedimentària, la qualitat microbiològica de les aigües i la sorra, els cabals d'aigües residuals tractades i els residus de les platges. A partir dels registres de neteja en platges, proposem el rebuig i envasos en sorra (concentració de residus, kg/m2) com a nou indicador de presència d’usuaris a les platges (usuaris/m2). La diagnosi realitzada indica que l'estat físic de les platges de Sitges respon a les actuacions en matèria d'obres marítimes en interacció amb les dinàmiques sedimentaries. Pel que fa als anàlisis microbiològics de l'aigua i la sorra trobem una situació regulada a excepció de pics provocats per pluges puntuals. Malauradament hem vist com es podrien potenciar el valors ambientals de totes les parts treballades si es fomentessin figures de protecció del medi, la regeneració d’espècies vegetals tan fora com dins de l'aigua i es garantís una gestió de l’aigua 100% eficient i sense causar intromissions en el desenvolupament dels ecosistemes.

Lévy area for Gaussian processes: A double Wiener--Itô integral approach

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

Informe sobre el PNR. La utilización de datos personales contenidos en el registro de nombres de pasajeros: ¿fines represivos o preventivos?

En noviembre de 2001, sólo dos meses después de los atentados a las Torres Gemelas, se aprobó una ley que obligaba a cualquier compañía aérea que operase vuelos de pasajeros con destino u origen a EE UU a proporcionar a la Oficina de Aduanas y Protección Fronteriza (Bureau of Customs and Border Protection) el acceso electrónico a los datos contenidos en el registro de nombres de pasajeros, conocidos por sus sigla en inglés PNR (Passenger Name Record). Tras varios acuerdos entre la Unión Europea y EE UU, y otros suscritos con Canadá y Australia, se ha avanzado hacia ciertos mínimos que deben respetarse en el proceso de transferencia internacional de datos personales desde Europa a terceros Estados con fines de represión y prevención penal de ilícitos terroristas. No obstante, a día de hoy son muchas las dudas que surgen tras el análisis detallado de los mismos. Este trabajo repasa críticamente dichos acuerdos, así como el proyecto de creación de un PNR para Europa, poniendo el acento en los aspectos más sensibles desde el punto de vista de la protección de datos personales, y de la configuración de la libertad en el marco de unas medidas proporcionales de seguridad que puedan ser útiles de cara a su renovación con más garantías y la posible suscripción de más acuerdos con dicha finalidad.

Research activities at european level performed at the Institute for Públic Safety of Catalonia

To start off, this document describes the Catalan model for emergencies response and its reference frame in terms of geography, location population…In addition, describes the main actors involved in emergencies response such as: police, the Fire and Rescue Emergency Service, the Emergency Medical System, Civil Protection, Reception and Management of Emergency Calls, Rural Agents, ADF’s and UME. Civil Protection, Firefighters and Police are includes in the training model developed by the Institute for Public Safety of Catalonia which at the same time does research in both security and safety matters. Research activities are performed by the Area for Research, Knowledge and International Cooperation at the ISPC and an example of these activities are European Research Projects such as COIM-Best (Coordination Improvement by Best Practices) and BESECU (cross-cultural differences of human behaviour in fire disasters and other crisis situations) among others.