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The paper is an enquiry into dynamic social contract theory. The social contract defines the rules of resource use. An intergenerational social contract in an economy with a single exhaustible resource is examined within a framework of an overlapping generations model. It is assumed that new generations do not accept the old social contract, and access to resources will be renegotiated between any incumbent generation and their successors. It turns out that later generations will be in an unfortunate position regardless of their bargaining power.
Computer games may be defined as artifacts that connect the input devices of a computer (such as keyboard, mouse or controller) with its output devices (in most cases a screen and speakers) in such a way that on the screen a challenge is displayed. On the screen we see pictorial elements that have to be manipulated to master a game, that is to win a competition, to solve a riddle or to adopt a skill. Therefore the characteristics of the representational function of computer games have to be contrasted phenomenologically with conventional games on the one hand and cinematic depictions on the other. It shows that computer games separate the player from the playing field, and translate bodily felt concrete actions into situational abstract cinematic depictions. These features add up to the situational abstract presentation of self-action experience. In this framework computer games reveal a potential as a new means of shared cognition that might unfold in the 21st century and change the beingin- the-world in a similar way as cinematic depiction did in the 20th century
In this paper a partial least squares (PLS) approach to dynamic modelling with latent variables is proposed. Let Y be a matrix of manifest variables and H the matrix of the corresponding latent variables. And let H = BH+ε be a structural PLS model with a coefficient matrix B. Then this model can be made a dynamic one by substituting for B a matrix F = B + CL containing the lag operator L. Then the structural dynamic model H = FH+ε is formally estimated like an ordinary PLS model. In an exploratory way the model can be used for forecasting purposes. The procedure is being programmed in ISP.
This is the 16th issue of the working paper series Interdisciplinary Studies on Information Structure (ISIS) of the Sonderforschungsbereich (SFB) 632. The present issue continues the series on Linguistic Fieldnotes providing data elicited and documented by different members of the Sonderforschungsbereich 632. Here, the focus is placed on primary linguistic data from Gur and Kwa languages, collected and prepared by Anne Schwarz, former investigator in Project B1 and D2, and Ines Fiedler, former investigator in Project B1 and D2 and current member of Project B7 at Humboldt-Universität zu Berlin.
This is the 15th issue of the working paper series Interdisciplinary Studies on Information Structure (ISIS) of the Sonderforschungsbereich (SFB) 632. This online version contains the Questionnaire on Focus Semantics contributed by Agata Renans, Malte Zimmermann and Markus Greif, members of Project D2 investigating information structural phenomena from a typological perspective. The present issue provides a tool for collecting and analyzing natural data with respect to relevant linguistic questions concerning focus types, focus sensitive particles, and the effects of quantificational adverbs and presupposition on focus semantics. This volume is a supplementation to the Reference manual of the Questionnaire on Information Structure, issued by Project D2 in ISIS 4 (2006).
This contribution presents a quantitative evaluation procedure for Information Retrieval models and the results of this procedure applied on the enhanced Topic-based Vector Space Model (eTVSM). Since the eTVSM is an ontology-based model, its effectiveness heavily depends on the quality of the underlaying ontology. Therefore the model has been tested with different ontologies to evaluate the impact of those ontologies on the effectiveness of the eTVSM. On the highest level of abstraction, the following results have been observed during our evaluation: First, the theoretically deduced statement that the eTVSM has a similar effecitivity like the classic Vector Space Model if a trivial ontology (every term is a concept and it is independet of any other concepts) is used has been approved. Second, we were able to show that the effectiveness of the eTVSM raises if an ontology is used which is only able to resolve synonyms. We were able to derive such kind of ontology automatically from the WordNet ontology. Third, we observed that more powerful ontologies automatically derived from the WordNet, dramatically dropped the effectiveness of the eTVSM model even clearly below the effectiveness level of the Vector Space Model. Fourth, we were able to show that a manually created and optimized ontology is able to raise the effectiveness of the eTVSM to a level which is clearly above the best effectiveness levels we have found in the literature for the Latent Semantic Index model with compareable document sets.
These lecture notes are intended as a short introduction to diffusion processes on a domain with a reflecting boundary for graduate students, researchers in stochastic analysis and interested readers. Specific results on stochastic differential equations with reflecting boundaries such as existence and uniqueness, continuity and Markov properties, relation to partial differential equations and submartingale problems are given. An extensive list of references to current literature is included. This book has its origins in a mini-course the author gave at the University of Potsdam and at the Technical University of Berlin in Winter 2013.
Content: I. The nature and form of international law 1. The acceptance of the existence of an international legal order 2. The legal position of the individual in international law II. Obligations of states in the protection of international human rights 1. Treaty-based human rights obligations 2. The nature of treaty-based human rights obligations 3. The ”absolute” and ”objective” character of human rights treaty obligations 4. Human rights conventions as self-contained regimes 5. The problem of characterisation of human rights obligations of states III. Human rights obligations arising from general principles of international law 1. Obligations erga omnes and human rights norms 2. The outlawing of genocide as obligation erga omnes 3. Protection from slavery as obligation erga omnes 4. The outlawing of acts of aggression as obligation erga omnes 5. Protection from racial discrimination as obligation erga omnes 6. The basic rights of the human person as obligation erga omnes 7. Jus Cogens and the search for peremptory norms of human rights 8. International crimes and human rights norms 9. The relationship between the concepts: erga omnes, jus cogens, international crime and human rights IV. International instruments for the coercive enforcement of state obligations to ‘respect and ensure’ human rights 1. Countermeasures as consequences of breach of treaties in international law 2. Application of reprisals for the enforcement of treaty-based human rights obligations 3. Intervention for the protection of human rights in international law 4. Intervention by the Security Council for the protection of human rights: the situation before the East-West détente 5. Humanitarian intervention after the end of the Cold War 6. The legal nature of ECOWAS intervention in the Liberian Civil War 7. The legality of NATO’s intervention in Kosovo 8. Some instances of intervention with mixed motives V. Non-forceful measures for the enforcement of states’ human rights obligations 1. Economic and financial pressure as means of enforcing states’ obligation to respect and observe human rights 2. The application of the clausula rebus sic stantibus for the protection of human rights 3. The enforcement of human rights through the World Bank 4. The enforcement of human rights through the ILO 5. Diplomatic recognition as an instrument for securing a state's respect and promotion of human rights 6. Refusal to comply with an extradition agreement as a means of enforcing a state’s human rights obligations 7. Denial of immunity as a means of enforcing a state’s human rights obligations 8. Publicity as an instrument for the enforcement of human rights VI. Judicial enforcement of state obligations to ‘respect and ensure’ human rights 1. Enforcement of human rights through International Criminal Tribunals 2. The International Criminal Tribunal for Yugoslavia 3. The International Criminal Tribunal for Rwanda 4. The International Special Court of Sierra Leone Résumé
Estimation and testing the effect of covariates in accelerated life time models under censoring
(2010)
The accelerated lifetime model is considered. To test the influence of the covariate we transform the model in a regression model. Since censoring is allowed this approach leads to a goodness-of-fit problem for regression functions under censoring. So nonparametric estimation of regression functions under censoring is investigated, a limit theorem for a L2-distance is stated and a test procedure is formulated. Finally a Monte Carlo procedure is proposed.