6,532 research outputs found
Report on a Right of Use for Collateral Takers and Custodians
The Report on a Right of Use for Collateral Takers and Custodians examines on what basis collateral takers can dispose of the assets of collateral providers, and custodians of those of their clients. The report describes the current legal practice in the USA, Denmark, The Netherlands, Germany, Italy and the UK. It critically examines legislative initiatives by UNIDROIT (Project on Harmonised Substantive Rules regarding Securities Held with an Intermediary) and in the European Union (Collateral Directive, Investment Services Directive). The report contains a Tax Appendix.collateral, right of use, repo, securities lending, derivatives
Quintic threefolds and Fano elevenfolds
The derived category of coherent sheaves on a general quintic threefold is a
central object in mirror symmetry. We show that it can be embedded into the
derived category of a certain Fano elevenfold.
Our proof also generates related examples in different dimensions.Comment: V1: 12 pages. V2: added reference to work of Iliev and Manivel. V3:
persistent sign error corrected. Other minor changes following referee's
suggestions. To appear in Crell
Formation of the Galactic Millisecond Pulsar Triple System PSR J0337+1715 - a Neutron Star with Two Orbiting White Dwarfs
The millisecond pulsar in a triple system (PSR J0337+1715, recently
discovered by Ransom et al.) is an unusual neutron star with two orbiting white
dwarfs. The existence of such a system in the Galactic field poses new
challenges to stellar astrophysics for understanding evolution, interactions
and mass-transfer in close multiple stellar systems. In addition, this system
provides the first precise confirmation for a very wide-orbit system of the
white dwarf mass-orbital period relation. Here we present a self-consistent,
semi-analytical solution to the formation of PSR J0337+1715. Our model
constrains the peculiar velocity of the system to be less than 160 km/s and
brings novel insight to, for example, common envelope evolution in a triple
system, for which we find evidence for in-spiral of both outer stars. Finally,
we briefly discuss our scenario in relation to alternative models.Comment: ApJ Letters, in press (6 pages, 3 figures, 1 table
Comment on "A non-interacting low-mass black hole -- giant star binary system"
Thompson et al. (Reports, 1 November 2019, p. 637, Science) interpreted the
unseen companion of the red giant star 2MASS J05215658+4359220 as most likely a
black hole. We argue that if the red giant is about one solar mass, its
companion can be a close binary consisting of two main-sequence stars. This
would explain why no X-ray emission is detected from the system.Comment: 3 pages, Author version of Technical Comment published in Science on
8 May, 202
Cyclic Nucleotide Signaling and the Cardiovascular System
The cyclic nucleotides 3',5'-adenosine monophosphate (cAMP) and 3',5'-cyclic guanosine monophosphate (cGMP) play important roles in the control of cardiovascular function under physiological and pathological conditions. In this book, which is a reprint of a Special Issue of the Journal of Cardiovascular Development and Disease entitled "Cyclic Nucleotide Signaling and the Cardiovascular System", internationally recognized experts give an overview of this vibrant scientific field. The first series of articles deal with the localization and function of membrane-bound and soluble adenylate cyclases, followed by articles on the roles of phosphodiesterase isoforms in the heart. Cyclic nucleotide signaling takes place in nanodomains and the A-kinase anchor proteins (AKAPS) are essential for the compartmentalized assembly of signaling proteins into functional complexes. Reviews on the role of AKAP proteins in the physiology and pathophysiology of the heart are also included in this book. Cyclic nucleotides act through effector proteins and articles on EPAC and POPDC proteins inform the reader of recent developments on these topics. A major advancement in our understanding of cyclic nucleotide signaling came through the use of genetically encoded cAMP sensor molecules, and a series of articles review the current insight that these reporter molecules have provided. The final set of articles in this book deals with the association of the cyclic nucleotide pathway and cardiovascular disease as well as the development of novel therapeutic approaches. Thomas Brand and Enno Klussmann Special Issue Editor
Introduction to the new usability
This paper introduces the motivation for and concept of the "new usability" and positions it against existing approaches to usability. It is argued that the contexts of emerging products and systems mean that traditional approaches to usability engineering and evaluation are likely to prove inappropriate to the needs of "digital consumers." The paper briefly reviews the contributions to this special issue in terms of their relation to the idea of the "new usability" and their individual approaches to dealing with contemporary usability issues. This helps provide a background to the "new usability" research agenda, and the paper ends by posing what are argued to be the central challenges facing the area and those which lie at the heart of the proposed research agenda
Male access and success in higher education
The gendered landscape of higher education (hereafter HE) has changed significantly over the past two decades. As has long been the case, men are more likely to secure graduatelevel employment after their degree, although the advantage over women in this respect is now marginal. Men still form the majority of faculty and HE managers. Since the early 1990s, however, women are now more likely to start an undergraduate course than men, to successfully complete it and to achieve a ‘good degree’. Although the gender gap is less significant beyond undergraduate study, women are also more likely to undertake post-graduate courses. The speed and scale of the change in undergraduate participation patterns makes it a social phenomenon meriting further attention
Task Force - ein Gutachten zu den politischen und wirtschaftlichen Beziehungen Ostasien-NRW
Die Beiträge der Studie stellen ein Gutachten zu den politischen und wirtschaftlichen Beziehungen zwischen dem Bundesland Nordrhein-Westfalen (NRW) und den asiatischen Ländern VR China, Japan und Vietnam dar. Das Gutachten wurde im Sommer 2000 für die Staatskanzlei NRW von Studierenden der Gerhard-Mercator-Universität Duisburg erstellt und behandelt fünf Themen: · Direktkontakte NRW und VR China: Bilaterale Entwicklungszusammenarbeit. · Direktkontakte NRW und VR China: Städtepartnerschaften: Rahmenbedingungen und künftige Gestaltung. · Direktkontakt Nordrhein-Westfalen - Vietnam. · Japan und NRW: Wirtschaftsbeziehungen und gezielte, bilaterale Entwicklungszusammenarbeit: möglich oder illusorisch? · Regionalkooperationen zwischen NRW und Japan und ihre Bedeutung für kleine und mittlere Unternehmen (KMU). Die Lösungsvorschläge für Probleme der politischen Praxis stellen potenzielle Diskussionsgrundlagen für politische Entscheidungsträger in NRW dar. --Beziehungen NRW-Asien,Umweltschutz China,Entwicklungszusammenarbeit,Wirtschaftsbeziehungen,Städtepartnerschaften,Direktkontakte Vietnam
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