Simultaneous optical and X-ray observations of flares and rotational modulation on the RS CVn binary HR 1099 (V711 Tau) from the MUSICOS 1998 campaign

We present simultaneous and continuous observations of the Hα, Hβ, He I D_3, Na I D_1,D_2 doublet and the Ca II H&K lines for the RS CVn system HR 1099. The spectroscopic observations were obtained during the MUSICOS 1998 campaign involving several observatories and instruments, both echelle and long-slit spectrographs. During this campaign, HR 1099 was observed almost continuously for more than 8 orbits of 2^d.8. Two large optical flares were observed, both showing an increase in the emission of Hα, Ca II H K, Hβ and He I D_3 and a strong filling-in of the Na I D_1, D_2 doublet. Contemporary photometric observations were carried out with the robotic telescopes APT-80 of Catania and Phoenix-25 of Fairborn Observatories. Maps of the distribution of the spotted regions on the photosphere of the binary components were derived using the Maximum Entropy and Tikhonov photometric regularization criteria. Rotational modulation was observed in Hα and He I D_3 in anti-correlation with the photometric light curves. Both flares occurred at the same binary phase (0.85), suggesting that these events took place in the same active region. Simultaneous X-ray observations, performed by ASM on board RXTE, show several flare-like events, some of which correlate well with the observed optical flares. Rotational modulation in the X-ray light curve has been detected with minimum flux when the less active G5 V star was in front. A possible periodicity in the X-ray flare-like events was also found.

The evolutionary paths among galaxy types on the red sequence at 0.3 < Z < 1.5

We have studied the main evolutionary paths among the galaxy types residing on the massive end of the Red Sequence and nearby locations on the Green Valley during the last ∼9 Gyr. The morphological and star formation properties of a sample of these galaxies at 0 . 3 < z < 1 .5 with stellar masses M_∗ > 5 × 10^10 M_⊙ have been analysed. We present direct observational evidence for the first time of the existence of two main evolutionary paths among the different red galaxy types since z ∼ 1 .5, which provide some clues on the nature of the processes that have governed the assembly of present-day massive quiescent galaxies. The results are in excellent agreement with the hierarchical evolutionary framework proposed in the Eliche-Moral et al. (2010) model. Data from SHARDS (one of the ESO/GTC Large Programmes approved in 2009A) will complement and improve the present findings, shedding some light into many of the still unsettled questions concerning the migration of galaxies from the Blue Cloud to the Red Sequence at z < 1 .5.

A reassessment of traditional lexicographical tools in the light of new corpora: sports Anglicisms in Spanish

There is no question nowadays as to the international and powerful status of English at a global scale and, consequently, as to its presence in non-English speaking countries at different levels. Linguistically speaking, English is one of the languages which have mostly influenced Spanish throughout its history and especially from the late 1960s. In this study, the impact of English on Spanish is considered in the language of sports; particularly, sports Anglicisms and false Anglicisms are analysed. Due attention is paid to the different forms that an Anglicism may adopt and to which of those forms are more widely accepted or rejected by prescriptivists and speakers at large, in the light of a contrastive analysis of their appearance in the Nuevo diccionario de anglicismos, the Diccionario de la Real Academia Española and the Corpus de Referencia del Español Actual.

On the stability of the Motzkin representation of closed convex sets

A set is called Motzkin decomposable when it can be expressed as the Minkowski sum of a compact convex set with a closed convex cone. This paper analyzes the continuity properties of the set-valued mapping associating to each couple (C,D) formed by a compact convex set C and a closed convex cone D its Minkowski sum C + D. The continuity properties of other related mappings are also analyzed.

X-Ray Imaging of SAPO-34 Molecular Sieves at the Nanoscale: Influence of Steaming on the Methanol-to-Hydrocarbons Reaction

The effect of a severe steaming treatment on the physicochemical properties and catalytic performance of H-SAPO-34 molecular sieves during the methanol-to-hydrocarbons (MTH) reaction has been investigated with a combination of scanning transmission X-ray microscopy (STXM), catalytic testing, and bulk characterization techniques, including ammonia temperature programmed desorption and 27Al and 29Si magic angle spinning nuclear magnetic resonance. For this purpose, two samples, namely a calcined and a steamed H-SAPO-34 catalyst powder, have been compared. It has been found that calcined H-SAPO-34 displays a high selectivity towards light olefins, yet shows a poor stability as compared to a zeolite H-ZSM-5 catalyst. Moreover, in situ STXM at the carbon K-edge during the MTH reaction allows construction of nanoscale chemical maps of the hydrocarbon species formed within the H-SAPO-34 aggregates as a function of reaction time and steam post-treatment. It was found that there is an initial preferential formation of coke precursor species within the core of the H-SAPO-34 aggregates. For longer times on stream the formation of the coke precursor species is extended to the outer regions, progressively filling the entire H-SAPO-34 catalyst particle. In contrast, the hydrothermally treated H-SAPO-34 showed similar reaction selectivity, but decreased activity and catalyst stability with respect to its calcined counterpart. These variations in MTH performance are related to a faster and more homogeneous formation of coke precursor species filling up the entire steamed H-SAPO-34 catalyst particle. Finally, the chemical imaging capabilities of the STXM method at the Al and Si K-edge are illustrated by visualizing the silicon islands at the nanoscale before and after steaming H-SAPO-34.

New theropod remains from the Tiourarén Formation (?Middle Jurassic, Niger) and their bearing on the dental evolution in basal tetanurans

A fragment of a maxilla and isolated theropod teeth from the (?) Middle Jurassic Tiourarén Formation are described. The specimens come from Tadibene, in the rural community of Aderbissinat, Thirozerine Department, Agadez Region, Niger. They were identified through direct comparison with teeth previously described in the literature as well as on the basis of discriminant and morphometric analyses. Our results suggest they belong to Ceratosauridae, Megalosauridae, and the oldest representatives of Spinosauridae. The analyzed sample shows some uncommon characters, such as spinosaurid-like ornamentation in megalosaurid-like teeth, or spinosaurid-like teeth with a low number of denticles, which sheds light on tooth morphology and dental evolution in basal tetanurans and early spinosaurids.

Mineralogy and geochemistry of contrasting hydrothermal systems on the Arctic Mid Ocean Ridge (AMOR) : the Jan Mayen and Loki’s Castle vent fields

Tese de doutoramento, Ciências do Mar, Universidade de Lisboa, Faculdade de Ciências, 2016

Open Season for Data Fishing on the Web: The Challenges of the US PRISM Programme for the EU. CEPS Policy Brief No. 293, 18 June 2013

The revelation of the top-secret US intelligence-led PRISM Programme has triggered wide-ranging debates across Europe. Press reports have shed new light on the electronic surveillance ‘fishing expeditions’ of the US National Security Agency and the FBI into the world’s largest electronic communications companies. This Policy Brief by a team of legal specialists and political scientists addresses the main controversies raised by the PRISM affair and the policy challenges that it poses for the EU. Two main arguments are presented: First, the leaks over the PRISM programme have undermined the trust that EU citizens have in their governments and the European institutions to safeguard and protect their privacy; and second, the PRISM affair raises questions regarding the capacity of EU institutions to draw lessons from the past and to protect the data of its citizens and residents in the context of transatlantic relations. The Policy Brief puts forward a set of policy recommendations for the EU to follow and implement a robust data protection strategy in response to the affair.

The Convention on the Future of Europe: Extended Working Group or Constitutional Assembly? Research Papers in Law, 4/2005

From the Introduction. “We are a Convention. We are not an Intergovernmental Conference because we have not been given a mandate by Governments to negotiate on their behalf the solutions which we propose. We are not a Parliament because we are not elected by citizens to draft legislative texts. […] We are a Convention. What does this mean? A Convention is a group of men and women meeting for the sole purpose of preparing a joint proposal. […] It is a task modest in form but immense in content, for if it succeeds in accordance with our mandate, it will light up the future of Europe”.1 In his speech inaugurating the Convention process on 26 February 2002 in Brussels, Convention President VALÉRY GISCARD D’ESTAING raises three issues: first, he refers to the Convention’s nature and method; second, he talks of the Convention’s aim and output; and, third, he evokes the Convention’s historic and symbolic significance. All three aspects have been amply discussed in the past two years by politicians and academics analysing whether the Convention’s purpose and instruments differ fundamentally from those of previous reform rounds; whether the input into and output of the Convention process qualitatively improves European Treaty revision; and whether the Convention as an institution lived up to its symbolic and normative load, reflected in comparisons with “Philadelphia” or references to a “constitutional moment”.2

EEAS 2.0: Recommendations for the amendment of Council Decision 2010/427/EU on the European External Action Service. CEPS Special Report No. 78, 13 November 2013

This Special Report offers recommendations for the amendment of the Council Decision 2010/427/EU establishing the organisation and functioning of the European External Action Service. Its purpose is to contribute, in practical legal terms, to the ongoing review of the Decision in 2013, as well as to the possible discussion on its revision that may take place in 2014. In particular, it sheds light on possible adjustments in the application of the Decision ‘à droit constant’, but also suggests potential alteration of its formulation.

The Judicial ‘Bail Out’ of the European Stability Mechanism: Comment on the Pringle Case. Research Paper in Law 09/2013

Since the beginning of the crisis, many responses have been taken to stabilise the European markets. Pringle is the awaited judicial response of the European Court of Justice on the creation of the European Stability Mechanism (ESM), a crisis-related intergovernmental international institution which provides financial assistance to Member States in distress in the Eurozone. The judgment adopts a welcome and satisfactory approach on the establishment of the ESM. This article examines the feasibility of the ESM under the Treaty rules and in light of the Pringle judgment. For the first time, the Court was called to appraise the use of the simplified revision procedure under article 48 TEU with the introduction of a new paragraph to article 136 TFEU as well as to interpret the no bail out clause under article 125 TFEU. The final result is rather positive as the Court endorses the establishment of a stability mechanism of the ESM-kind beyond a strict reading of the Treaty rules. Pringle is the first landmark ECJ decision in which the Court has endorsed the use of new and flexible measures to guarantee financial assistance between Member States. This judgment could act as a springboard for more economic, financial and, possibly, political interconnections between Member States.

The Shaping of EU-Mercosur Relations: From Altruism to Pragmatism and Liberalism to Illiberalism. Pittsburgh Papers on the European Union Vol. 1, (2012)

Deeply-embedded norms of liberalism and protectionism alongside EU policies focusing on promoting development and regional integration have shaped EU-Mercosur relations. These stand in stark contrast to the policies of the US, the historic hegemon in the region. This paper utilizes historical institutionalism to understand how the liberal tenets of EU competition policy and the protectionism of Common Agricultural Policy (CAP) have affected EU-Mercosur relations. Particular foci include Spain’s role in spearheading efforts to promote EU-Latin American relations and the way EU competition policies directed against monopolies in Europe spurred increased investment in Latin America, especially the Southern Cone. The latter prompted the EU to forge closer ties with Mercosur, encouraged cooperation and development programs and spurred regional integration and liberal trade regimes in Latin America.

General Principles of EU Law: The Ghost in the Platonic Heaven in Need of Conceptual Clarification. Pittsburgh Papers on the European Union Vol. 2, 2013

General principles are en vogue in EU law – and in need of conceptual clarification. A closer look at several concepts of principle in legal philosophy and legal theory sheds light upon the concept of general principles in EU law. A distinction between an aprioristic model of principle and a model of principle informed by legal positivism may contribute to clarifying the genesis of a (general) principle in EU law, as well as its nature and functions. This paper demonstrates that an evolution has taken place from a reliance on seemingly natural law inspired reflections of general principles via the desperate search to ground general principles in various kinds of sources based on a more or less sound methodology towards an increasing reliance on strictly positivistic approaches. Against this backdrop, general principles are likely to lose significance where there are other norms while retaining an important yet uncontrollable role where the traditional canon of sources is silent.

Macroeconomic Scenarios for the Euro-Mediterranean Area Quantification based on the GEM-E3 Model. MEDPRO Report No. 7, July 2013

Four alternative macroeconomic scenarios for southern Mediterranean countries are quantified in this study with the use of GEM-E3, a general equilibrium model. These are i) the continuation of current policies (business-as-usual scenario), ii) southern Mediterranean–EU cooperation (Euro-Mediterranean Union scenario), iii) a global opening of the southern Mediterranean countries and cooperation with the rest of the Middle East and other developing countries like China (Euro-Mediterranean alliance scenario), and iv) a deterioration in the regional political climate and a failure of cooperation (Euro-Mediterranean under threat scenario). Explicit assumptions on trade integration, infrastructure upgrade, population and governance developments are adopted in each scenario. The simulation results indicate that an infrastructure upgrade and governance improvements in the context of southern Mediterranean–EU cooperation could benefit most of the countries under consideration. The analysis remains important in light of ongoing regional developments and the need to design the best policies to pursue in the aftermath of the Arab spring.

Europe on the Road to the Third Stage of EMU: Recent Evidence. CES Germany & Europe Working Papers, No. 07.2, 1996

The paper deals with Europe's effort to proceed to the thud stage of EMU and establish a common currency. It is argued that the success of the common currency experiment will greatly depend on the fulfillment of the Optimum Currency Area (OCA) criteria, on the adoption of the proper adjustment policies as well as on the political desirability of the project. The paper is organized as follows: Section 1 deals briefly with the index of criteria that define an OCA. Section 2 examines the extent to which Europe experiences common demand disturbances, while sections 3 and 4 focus on evidence about the mobility of factors of production across Europe, namely labor and capital. Section 5 examines the possibility of an increase in trade volume across the EU under fixed exchange rates or a common currency regime. Section 6 sheds light on the possibility of the EURO (the ex-ECU} to become a vehicle currency in the international financial system, and Section 7 is concerned with the benefits and costs of the establishment of a European Central Bank (ECB), paying special attention to seigniorage revenues. Section 8 deals with the necessity of establishing an EU federal mechanism facilitating adjustment. Section 9 sketches out a proper role for a hegemonic power in a common currency regime. Finally, section 10 examines EMU prospects during the transitional period. The paper closes with some concluding remarks, where the role of politics and coordination of economic policies are particularly emphasized as of cardinal importance on the road to the third stage of EMU.