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Search Results: 1 - 10 of 809 matches for " Erich Griessler "
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One size fits all? On the institutionalization of participatory technology assessment and its interconnection with national ways of policy-making: the cases of Switzerland and Austria
Erich Griessler
Poiesis & Praxis , 2012, DOI: 10.1007/s10202-012-0120-7
Abstract: La politique de recherche et technologique se voit souvent confrontée à des problèmes demandant beaucoup de connaissance et suscitant des polémiques et sur lesquels décideurs, experts, parties prenantes, organisations non-gouvernementales et le public doivent décider dans des constellations difficiles. Un moyen pour surmonter ces difficultés, ce sont les procédés de participation de la population dans les décisions qui affectent leur vie. L’histoire de l’évaluation participative des conséquences technologiques remonte à quelques décennies déjà, et les expériences acquises dans différents pays sont assez divergents. Tandis que dans certains pays, les gouvernements ont établi des organisations dont le portfolio méthodique d’évaluation des conséquences technologiques incluait aussi des approches d’évaluation participative, dans d’autres pays, les décideurs s’appuient en premier lieu sur les connaissances des experts. Dans un troisième groupe de pays, des acteurs non-étatiques tels que par exemple des spécialistes des sciences sociales, ont fait leurs propres expériences dans l’évaluation participative des conséquences technologiques. Mais souvent ces expériences n’ont pas été prises en compte dans les processus décisionnels politiques. Pourquoi y a-t-il ces différences spécifiques aux pays dans l’évaluation participative des conséquences technologiques? Le présent article tente d’expliquer ce problème par les différentes pratiques d’élaboration de politiques en comparant l’Autriche à la Suisse. Tandis qu’en Suisse, nombre d’évaluations participatives des conséquences technologiques ont été réalisées avec succès, le nombre de procédés de participation de la population en Autriche est resté négligeable.
An optimality principle with applications in optimal transport
Mathias Beiglb?ck,Claus Griessler
Mathematics , 2014,
Abstract: A fundamental concept in optimal transport is c-cyclical monotonicity: it allows to link the optimality of transport plans to the geometry of their support sets. Recently, related concepts have been successfully applied in the multi-marginal version of the transport problem as well as in the martingale transport problem which arises from model-independent finance. We establish a unifying concept of c-monotonicity / finitistic optimality which describes the geometric structure of optimizers to infinite-dimensional linear programming problems. This allows us to strengthen known results in martingale optimal transport and the infinitely marginal case of the optimal transport problem. If the optimization problem can be formulated as a multi-marginal transport problem our contribution is parallel to a recent result of Zaev.
Convex order of discrete, continuous and predictable quadratic variation & applications to options on variance
Martin Keller-Ressel,Claus Griessler
Quantitative Finance , 2011,
Abstract: We consider a square-integrable semimartingale and investigate the convex order relations between its discrete, continuous and predictable quadratic variation. As the main results, we show that if the semimartingale has conditionally independent increments and symmetric jump measure, then its discrete realized variance dominates its quadratic variation in increasing convex order. The results have immediate applications to the pricing of options on realized variance. For a class of models including time-changed Levy models and Sato processes with symmetric jumps our results show that options on variance are typically underpriced, if quadratic variation is substituted for the discretely sampled realized variance.
Early Initial Diagnosis of Gardner Syndrome in a 12-Year-Old Boy  [PDF]
Erich Bryan, Peter Kalina
Advances in Computed Tomography (ACT) , 2013, DOI: 10.4236/act.2013.21001
Abstract:

A 12-year-old boy presented to his primary care physician with a painful lump at the angle of the left mandible after being kicked in the jaw during a soccer game. Over the next 2 months the lesion became progressively firmer and fine needle aspiration was attempted. Results were non-diagnostic. Panorex examination revealed a calcified mass contiguous with the left angle of the mandible. Considerations were bony callus secondary to trauma versus a calcified hematoma. A maxillofacial CT showed multiple diffuse craniofacial osseous lesions including the clinically suspected region at the left angle of the mandible. Imaging findings were consistent with multiple craniofacial osteomas and workup for Gardner Syndrome was initiated. Genetic testing was subsequently positive for Familial Adenomatous Polyposis.

A Model of the Religious Transition  [PDF]
Erich Gundlach, Martin Paldam
Theoretical Economics Letters (TEL) , 2012, DOI: 10.4236/tel.2012.25077
Abstract: The religious transition is the decline of religiosity with rising levels of income. The empirical robustness of the transition has been demonstrated. It appears that the transition is driven by the substitution of scientific knowledge for religious beliefs, which characterizes the process of modern economic growth. This note models the substitution process. A Solow model with CES technology generates the transition path with endogenous growth and reveals a direct link between the substitution parameter and the estimated transition parameter.
A Study of Shark Stealth Behavior in the Proximity of Divers  [PDF]
Erich Ritter, Raid Amin
Open Journal of Animal Sciences (OJAS) , 2015, DOI: 10.4236/ojas.2015.52025
Abstract: This study examines the approach patterns of sharks in the vicinity of human divers, focusing on the diver’s body orientation and a shark’s distance from the sea bed when approaching the diver. A standardized video method was used to record the scenario of diver(s) kneeling in the sand while being approached by sharks. This showed that sharks had a preference to move in from outside a diver’s field of vision while larger sharks stayed closer to the sea floor. This may simultaneously enhance camouflage while reducing potential escape routes for the approaching animal. This stealth behavior raises the question of how sharks may interpret humans when moving towards them.
From Mutualistic Partner to Hunted Prey?  [PDF]
Erich K. Ritter
Open Journal of Animal Sciences (OJAS) , 2019, DOI: 10.4236/ojas.2019.91008
Abstract: Sharks and sharksuckers maintain a mutualistic symbiotic relationship; thus, it is surprising to observe a lemon shark, Negaprion brevirostris, killing a sharksucker, Echeneis lucrates, which has been recorded during a dive with lemon sharks. Does this observation indicate that the symbiosis between the two species may shift occasionally? The awkwardness of the recorded kill, combined with its comparatively long duration, suggests this bout be a freak incident, rather than a common occurrence; thus, the mutualistic relationship needs not be questioned. What triggered the bout, however, can only be speculated. Although the caloric value of the killed sharksucker is not known, a feeding-oriented behavior can likely be rejected as the potential cause based on the teleost’s rather small size, and an irritation related issue is more likely to have triggered this bout.
On the Separation Mechanism between a Shark’s Tooth and Its Jaw Base, with Special Emphasis on an Observation Made from a White Shark, Carcharodon carcharias  [PDF]
Erich K. Ritter, Andreas Dellios
Open Journal of Animal Sciences (OJAS) , 2018, DOI: 10.4236/ojas.2018.83024
Abstract: Feeding is the likely cause for tooth shedding in sharks. Although the overall process of loosing teeth has been well studied, hardly any emphasis has been given to the actual separation mechanism between a shark’s tooth base and the surrounding jaw tissue. Attention is given to this very process, in connection to a never before videotaped tooth loss of a white shark, Carcharodon carcharias, that occurred within 0.3 seconds. Since the shark did not bite into anything prior to this observation, the cause for this tooth loss does not seem feeding but fatigue related, triggered through a combination of mechanical and potentially biochemical degradation processes.
50 a?os de la ley de reforma urbana en Cuba: En el aniversario del cambio de paradigma
Trefftz,Erich;
Revista INVI , 2011, DOI: 10.4067/S0718-83582011000200002
Abstract: this paper provides an overview of the pre-revolutionary housing conditions in cuba and especially in havana. it explains the first revolutionary measures regarding housing and the urban reform law, the latter transforming the cuban housing system. this paper also analyzes today's results and contradictions. additionally, the outcomes of a survey conducted between march and june, 2010 to almost a hundred experts are presented and discussed. finally, the survey findings are contrasted with the changes introduced by the new guidelines for economic and social policies passed in the last party congress.
Consideraciones sobre casos de purpura fulminante
ERICH SIMPFENDORFER
Revista chilena de pediatría , 1944,
Abstract:
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