16,016,477 research outputs found

    Foundation Focus: Job Creation, Job Preservation or Job Loss? The Future of Europe\u27s Labour Market

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    This issue of Foundation Focus looks at the state of play of the European labour market and what governments, social partners and companies are doing to overcome the crisis. Over the last few years, many jobs have been lost, and mass unemployment has become the reality in some Member States. Eurofound’s latest European Quality of Life Survey points to growing inequalities and social exclusion. At the same time, the EU remains committed to the idea of creating and maintaining high-quality jobs. So where are these jobs going to come from? And is job quality being compromised in the attempt to cut costs and maintain competitiveness? All this and more in this issue of Foundation Focus

    Wages: A working conditions and industrial relations perspective

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    [Excerpt] This paper looks at wages from two different angles: from the perspective of individual employees, discussed in conjunction with their working conditions, and from the perspective of the industrial relations system. After a brief overview of EU-level policy developments with a potential impact on national level pay determination, this report gives a comparative overview of the levels of collective wage setting and how they are set throughout Europe and goes on to report on reforms, changes or debates linked to these processes between the different actors at both the Member State and the European level in 2011 and 2012. This includes, for instance, debates on potential changes of indexation mechanisms in Belgium, Luxembourg and Cyprus, as a result of the Commission’s recommendations within the Euro Plus Pact. While in some countries (Estonia, Bulgaria) social partners resumed collective bargaining (either on wages or on minimum wages) and came to agreements, in other countries (Lithuania, Romania), no agreements could be reached. Some changes in the way collective bargaining is organised were recently introduced in Spain, Romania, Greece, Ireland and Portugal. Information on these issues stems from the European Industrial Relations Observatory (EIRO). Furthermore, this paper also summarises the current changes and debates among the social partners and governments in relation to the setting and the level of minimum wages across Europe. It then looks into the area of ‘working poor’, that is people who are in employment but still at risk of poverty. To what extent do governments and social partners put forth policy responses to address the issue of in-work-poverty? And to what extent did the crisis have an impact? In order to answer these questions, the paper draws on Eurofound research on the situation of the ‘Working poor’. Finally the paper presents a collection of recent ‘information updates’ from the European Industrial Relations Observatory (EIRO) on various issues in relation to pay from Member States

    Physiological conditions influencing regenerative potential of stem cells

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    Stem cells are being used in the treatment of cardivovascular diseases. Here, we review the physiologic and pathologic conditions that impact the regenerative potential of stem cells in the treatment of cardiovascular diseases which include the influence of donor age and the presence of metabolic syndromes. We will also discuss strategies such as pretreatment of the recipient tissue or autologous or allogeneic stem cells by growth factors or drugs and by providing a synthetic scaffold and genetic modifications that impact the regenerative potential of stem cells. Finally, we will evaluate the current state of treatment of acute or chronic cardiovascular diseases with allogeneic stem cells

    Black Hole Boundary Conditions and Coordinate Conditions

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    This paper treats boundary conditions on black hole horizons for the full 3+1D Einstein equations. Following a number of authors, the apparent horizon is employed as the inner boundary on a space slice. It is emphasized that a further condition is necessary for the system to be well posed; the ``prescribed curvature conditions" are therefore proposed to complete the coordinate conditions at the black hole. These conditions lead to a system of two 2D elliptic differential equations on the inner boundary surface, which coexist nicely to the 3D equation for maximal slicing (or related slicing conditions). The overall 2D/3D system is argued to be well posed and globally well behaved. The importance of ``boundary conditions without boundary values" is emphasized. This paper is the first of a series. This revised version makes minor additions and corrections to the previous version.Comment: 13 pages LaTeX, revtex. No figure

    Conditions for interoperability

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    Interoperability for information systems remains a challenge both at the semantic and organisational levels. The original three-level architecture for local databases needs to be replaced by a categorical four-level one based on concepts, constructions, schema types and data together with the mappings between them. Such an architecture provides natural closure as further levels are superfluous even in a global environment. The architecture is traversed by means of the Godement calculus: arrows may be composed at any level as well as across levles. The necessary and sufficient conditions for interoperability are satisfied by composable (formal) diagrams both for intension and extension in categories that are cartesian closed and locally cartesian closed. Methods like partial categories and sketches in schema design can benefit from Freyd’s punctured diagrams to identify precisely type-forcing natural transformations. Closure is better achieved in standard full categories. Global interoperability of extension can be achieved through semantic annotation but only if applied at run time

    Inducing stability conditions

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    We study stability conditions induced by functors between triangulated categories. Given a finite group acting on a smooth projective variety we prove that the subset of invariant stability conditions embeds as a closed submanifold into the stability manifold of the equivariant derived category. As an application we examine stability conditions on Kummer and Enriques surfaces and we improve the derived version of the Torelli Theorem for the latter surfaces already present in the litterature. We also study the relationship between stability conditions on projective spaces and those on their canonical bundles.Comment: 31 pages. Final version to appear in J. Algebraic Geo

    Conditions for superdecoherence

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    Decoherence is the main obstacle to quantum computation. The decoherence rate per qubit is typically assumed to be constant. It is known, however, that quantum registers coupling to a single reservoir can show a decoherence rate per qubit that increases linearly with the number of qubits. This effect has been referred to as superdecoherence, and has been suggested to pose a threat to the scalability of quantum computation. Here, we show that superdecoherence is absent when the spectrum of the single reservoir is continuous, rather than discrete. The reason of this absence, is that, as the number of qubits is increased, a quantum register inevitably becomes susceptible to an ever narrower bandwidth of frequencies in the reservoir. Furthermore, we show that for superdecoherence to occur in a reservoir with a discrete spectrum, one of the frequencies in the reservoir has to coincide exactly with the frequency the quantum register is most susceptible to. We thus fully resolve the conditions that determine the presence or absence of superdecoherence. We conclude that superdecoherence is easily avoidable in practical realizations of quantum computers.Comment: 20 pages, 6 figures, quantum journal accepted versio

    Proposed wording for Terms and conditions of funding for 2020-21

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    On stability conditions for the quintic threefold

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    We study the Clifford type inequality for a particular type of curves C2,2,5C_{2,2,5}, which are contained in smooth quintic threefolds. This allows us to prove some stronger Bogomolov-Gieseker type inequalities for Chern characters of stable sheaves and tilt-stable objects on smooth quintic threefolds. Employing the previous framework by Bayer, Bertram, Macr\`i, Stellari and Toda, we construct an open subset of stability conditions on every smooth quintic threefold in PC4\mathbf{P}^4_{\mathbb C}.Comment: pre-journal version, 32 pages, 7 figures, comments are very welcome
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