8,299 research outputs found
Unemployment, Vacancies, Wages
No full textPeter A. Diamond delivered his Prize Lecture on 8 December 2010 at Aula Magna, Stockholm University.Search frictions;
Interview with Nobel Prize Laureates Peter A. Diamond, Dale T. Mortensen and Christopher A. Pissarides
No full textInterview with the 2010 Laureates in Economic Sciences Peter A. Diamond, Dale T. Mortensen and Christopher A. Pissarides, 6 December 2010. The interviewer is Adam Smith, Editorial Director of Nobel Media.Search frictions;
Limology
No full textLimology is an original 20 minute work in three sections for percussion ensemble, composed by Peter Nelson between 2017–18 during a fellowship from the Bogliasco Foundation, as part of a theatrical work in five parts, Nómadas conceived by Caribbean-born choreographer Henry Daniel. It was commissioned by Cambridge Music Conference for the Canadian ensemble Fringe Percussion. Nómadas is a collaborative work with composers Nigel Osborne (UK) and Owen Underhill (Canada), on the subject of the contemporary migration crisis. Preliminary discussions based on existing work by Daniel took place between the four principal collaborators, and one conceptual area was agreed for each of the three composers. Limology deals specifically with Mediterranean migration, using structural concepts from border theory. It forms the third part of the work, using images reflecting contemporary media representations. Swell portrays the surge of the Mediterranean, or any stormy crossing seen from a rubber raft or overcrowded vessel, passing from crisis to loss. Flight presents the imagined border between hope and terror, crossed and re-crossed in the mind of the migrant. Limbo evokes the temporary stasis of the refugee camp or detention centre. Thematic elements composed by Nelson for Limology were taken by Underhill as the basis for the final part of the work. The decision to work collaboratively was a conscious attempt to share concepts and materials emblematic of the cultural divides and reconciliations at the heart of the project. The place of performance, Squamish land in the heart of the city of Vancouver, was implicated from the start as a site of critical importance in the imagination of the work, as a site settled by immigrants. The cross-cultural imperatives of the creative process led to a work that presents its diverse materials as imagined in the contexts and contrasts of settler culture, and as recognising the encounters arising from contemporary migration
Social Security Investment in Equities I: Linear Case
No full textSocial Security trust fund portfolio diversification to include some equities reduces the equity premium by raising the safe real interest rate. This requires changes in taxes. Under the hypothesis of constant marginal returns to risky investments, trust fund diversification lowers the price of land, increases aggregate investment, and raises the sum of household utilities, suitably weighted. It makes workers who do not own equities on their own better off, though it may hurt some others since changed taxes and asset values redistribute wealth across contemporaneous households and across generations. In our companion paper we reconsider the effects of diversification when there are decreasing marginal returns to safe and risky investment. Our analysis uses a two-period overlapping generations general equilibrium model with two types of agents, savers and workers who do not save. The latter represent approximately half of all workers who hold no equities whatsoever.
Lichtsuchende
No full textLichtsuchende is an interactive installation that investigates relations between humans and robots. It consists of a group of robotic sunflowers that use light as a form of communication. It was created by Murray-Rust in collaboration with the design researcher Dr Rocio von Jungenfeld. It has been exhibited at nine international venues, including Edinburgh’s Hidden Door Festival (2014), the New Technology Art Awards, Ghent (2014) and GLOBALE: ExoEvolution (2015), curated by media theorist Peter Weibel, at the Center for Art and Media, Karlsruhe, Germany – an important international venue for technological art. The work has reached audiences in excess of 40,000.Lichtsuchende was awarded the 2019 Lumen Prize, the British Computing Society Award for Artificial Intelligence and Art, which celebrates the best work created annually using art and technology from across the globe
Top-heavy load: Trouble ahead for social security systems, Introduction by Peter A. Diamond
No full textAlternde Bevölkerung, Demographie, Soziale Sicherung, Bevölkerungsstruktur, EU-Staaten, Aging population, Demography, Social security, Demographic structure, EU countries
Diamond growth and properties for quantum technologies
No full text725Nanophotonics with Diamond and Silicon Carbide for Quantum Technologies provides an in-depth overview of key developments in diamond and silicon carbide photonics to enable spin-photon interfaces, quantum computing, quantum imaging, and quantum sensing. Written by world experts, chapters discuss nanophotonics effects (atomic size point center properties in the materials), fabrication of photonic components and integrated photonics circuits, photonics and nanophotonics enabling quantum sensing, and quantum information and networks via spin-photon interface. This book is a valuable resource to researchers and professionals interested on the fundamentals, trends, and diamond and silicon carbide applications in the quantum technology industry
Becoming Animal
No full textBecoming Animal is a feature documentary film, co-directed by Emma Davie and Peter Mettler which set out to challenge the traditional nature documentary and its structure. This film is set in Grand Teton National Park in Wyoming, over the course of a journey with cult writer and eco-philosopher David Abram. The documentary was filmed and edited over a 4 year period from 2014 to 2018. The aim was to find a different relationship between the viewer and ‘nature’ as represented on film: one which used the tools of cinema to explore the act of observation itself. The research objectives centered on the following questions:• How can we use documentary film to go beyond an anthropocentric worldview?• Can film give an insight into how the current environmental crisis might be rooted in a crisis of perception which has evolved over time in how we see ‘nature’?• How can the documentary essay form be combined with a more experiential, immersive aesthetic to involve an audience in a sensorial understanding of the themes of the film?The film emerged from a rigorous process of interdisciplinary research involving collaborations across many disciplines ranging from philosophy, eco-phenomenology, to vision mixing. It involved bringing together disciplines which describe the world in radically different ways: the literary, philosophical writing of Abram was to meet the experimental cinematography and directing style of Davie and Mettler whose work explores the immersive characteristic of cinema and its ability to re-create a haptic of sense of experience. It attempted to create a somatic experience for an audience which also included an awareness of the act of looking at representations of nature on film
Spherical nanometer-sized diamond obtained from detonation
No full textUltrafine diamond (UFD) was synthesized under high pressure and high temperatures generated by explosive detonation. The structure, composition, surface and thermal stability of UFD were studied by use of XRD, TEM, Raman Spectroscopy, FTIR, etc. The influences of the synthesis conditions and purification conditions on the properties of UFD were analyzed. The UFD had an average size of 4-6 nm, commonly exhibiting a spherical shape. The highest yield was of up to 10 mass% of the explosive. Attempts were made to use UFD as an additive to metal-diamond sintering and as crystallite seeds of CVD diamond films. The results show that UFD can decrease the coefficient of friction of the composite by 30%, and raise the nucleation density in CVD diamond films by 2-3 times
Diamond-graphite relationships in ultrahigh-pressure metamorphic rocks from the Kokchetav Massif, northern Kazakhstan
No full textGraphite inclusions in diamond, K-bearing clinopyroxene, garnet and kyanite and graphite coatings around microdiamonds from the ultrahigh-pressure Kokchetav Massif, northern Kazakhstan were investigated by means of scanning electron microscopy, laser Raman spectroscopy and X-ray diffraction. Important observations include the increasing size of the graphite crystals from the diamond-graphite interface to the external part of the graphite coatings, the high volume fraction of graphite in the graphite coatings, the presence of composite crystals of successively formed diamond core-graphite mantle zone-diamond rim-external graphite coating, the spherulitic texture of the graphite coatings, the formation of both ordered and disordered graphite and the absence of any fluid associated with the graphite inclusions in diamond and other ultrahigh-pressure metamorphic (UHPM) minerals. These features combined with the presence of oriented graphite flakes in K-bearing clinopyroxene and in diamond-bearing garnet and kyanite and the presence of intergranular diamonds without graphite coatings in the quartzo-feldspathic matrix require reconsideration of the generally accepted diamond graphitization model for interpreting the formation of graphite in UHPM rocks. Metastable growth of graphite within the diamond stability field is suggested and the following crystallization scheme for the C-polymorph is proposed: graphite was the first C-polymorph formed in the diamond stability field, followed by diamond; the graphite coatings around diamond formed during the final stage of UHPM conditions
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