A monotonic core concept for convex games: The SD-prenucleolus

We prove that the SD-prenucleolus satisfies monotonicity in the class of convex games. The SD-prenucleolus is thus the only known continuous core concept that satisfies monotonicity for convex games. We also prove that for convex games the SD-prenucleolus and the SD-prekernel coincide.

Playing games with words cultural transfer in David Lynch's Blue Velvet

Eguíluz, Federico; Merino, Raquel; Olsen, Vickie; Pajares, Eterio; Santamaría, José Miguel (eds.)

Dealing with Energy-QoE Trade-Offs in Mobile Video

Scalable video coding allows an efficient provision of video services at different quality levels with different energy demands. According to the specific type of service and network scenario, end users and/or operators may decide to choose among different energy versus quality combinations. In order to deal with the resulting trade-off, in this paper we analyze the number of video layers that are worth to be received taking into account the energy constraints. A single-objective optimization is proposed based on dynamically selecting the number of layers, which is able to minimize the energy consumption with the constraint of a minimal quality threshold to be reached. However, this approach cannot reflect the fact that the same increment of energy consumption may result in different increments of visual quality. Thus, a multiobjective optimization is proposed and a utility function is defined in order to weight the energy consumption and the visual quality criteria. Finally, since the optimization solving mechanism is computationally expensive to be implemented in mobile devices, a heuristic algorithm is proposed. This way, significant energy consumption reduction will be achieved while keeping reasonable quality levels.

Tameside College: Triptico games and resources used to engage students

Tracey Holt introduced Triptico to her department after attending training from Sue Shercliff, ESOL Lecturer. Triptico is a resource for teachers to use in conjunction with their interactive whiteboards that currently contains around 20 different interactive resources - all of which can be easily edited, adapted and saved for later use. This quickly spread throughout the entire college. It is a fantastic free resource which promotes more interaction in the classroom between the teacher and students.

Lancaster and Morecambe College: Uses serious computer games as a teaching tool

John Latham, International Projects Co-ordinator at Lancaster and Morecambe College (LMC), got involved with the project Serious Computer Games as a Teaching Tool (SCOGATT) after using the game EnerCities with his students. The web based platform at www.scogatt.eu serves as a One Stop Toolkit for vocational teachers and trainers who want to use serious computer games (SCG) in their teaching environments but might need a helping hand. There they will be able to find a compendium of serious games, SCOGATT pilot results, teacher reports and the exemplar games, EnerCities.

Diário da Constituinte [gravação de video] : [programa n. 069]

A Comissão da Organização dos Poderes e Sistema de Governo discute duas questões de ordem. Na primeira o deputado Amaral Netto (PDS-RJ)propõe a substituição dos relatores que tiveram os anteprojetos rejeitados e na segunda o deputado José Genoíno (PT-SP) quer mudar a composição da Comissão de Sistematização. A Comissão da Organização Eleitoral, Partidária e Garantia das Instituições discutiu duas questões que passaram por mais de uma subcomissão, e tiveram propostas diferentes, como o mandato presidencial, por exemplo. a Subcomissão do Poder executidvo proôs cinco anos, mas a Subcomissão do Sistema Eleitora sugeriu quatro. O deputados Paulo Delgado (PT-SP) diz que esta é uma questão política, e deve ser debatida com serenidade. Quarenta dias de trabalho sem interrupção, várias seções e audiências públicas e três viagens a regiões com conflito agrário, este o balanço dos trabalhos da Subcomissão da Política Agrícola e Fundiária e da Reforma Agrária. No resultado final houveram muitas divergências. O parecer do relator Oswaldo Lima Filho (PMDB-PE) foi preterido por um substitutivo, do deputado Rosa Prata (PMDB-MG), o que foi considerado irregular pelo Regimento Interno. Oswaldo Lima Filho (PMDB-PE) diz que o substitutivo é uma fraude. Já o deputado Rosa Prata (PMDB-MG) diz que é uma proposta menos radical e ajustada a realidade do país. Outro tema a ser discutido é o tamanho da propriedade rural. Os deputados Amaury Muller (PDT-RS) e Fernando Sant'Anna (PCB-BA) são a favor da limitação da propriedade. Ivo Vanderlinde (PMDB-SC) acredita no entendimento, para fazer da Reforma Agrária, uma realidade.

Voyages and travels into Brasil and east-Indies : containing an exact description of the dutch Brasil and divers parts of the east-Indies, their provinces, cities, living creatures, and products, the manners, customs, habits and religion the inhabitants : with a particular account of all the remarkable passages that happened during the author's stay of nine years in Brasil, especially in relation to the revolt of the portugueses, and the intestine war carried on there from 1640 to 1649 : as also a most ample description of the most famous city of batavia in the east-Indies

Joan Nieuhoff, viajante alemão, nasceu em Usen, Vesfália, em 1618, e morreu em Madagascar, em 1672. Trabalhou na Companhia das Índias Orientais, foi nomeado agente em Batávia, em 1654. Em 1655, foi à China tratar da abertura dos portos daquele país ao comércio holandês. Governou o Ceilão de 1662 a 1667. Em 1672, desembarcando em Madagascar, foi morto pelos nativos.

Case study: Video learning for engineering apprentices

Case study on level 2 and 3 engineering apprentices at PETA training and consultancy services.

A video method for quantifying size distribution, density, and three-dimensional spatial structure of reef fish spawning aggregations

There is a clear need to develop fisheries independent methods to quantify individual sizes, density, and three dimensional characteristics of reef fish spawning aggregations for use in population assessments and to provide critical baseline data on reproductive life history of exploited populations. We designed, constructed, calibrated, and applied an underwater stereo-video system to estimate individual sizes and three dimensional (3D) positions of Nassau grouper (Epinephelus striatus) at a spawning aggregation site located on a reef promontory on the western edge of Little Cayman Island, Cayman Islands, BWI, on 23 January 2003. The system consists of two free-running camcorders mounted on a meter-long bar and supported by a SCUBA diver. Paired video “stills” were captured, and nose and tail of individual fish observed in the field of view of both cameras were digitized using image analysis software. Conversion of these two dimensional screen coordinates to 3D coordinates was achieved through a matrix inversion algorithm and calibration data. Our estimate of mean total length (58.5 cm, n = 29) was in close agreement with estimated lengths from a hydroacoustic survey and from direct measures of fish size using visual census techniques. We discovered a possible bias in length measures using the video method, most likely arising from some fish orientations that were not perpendicular with respect to the optical axis of the camera system. We observed 40 individuals occupying a volume of 33.3 m3, resulting in a concentration of 1.2 individuals m–3 with a mean (SD) nearest neighbor distance of 70.0 (29.7) cm. We promote the use of roving diver stereo-videography as a method to assess the size distribution, density, and 3D spatial structure of fish spawning aggregations.

Coalitional games with veto players: Myopic and farsighted behavior

This paper studies an allocation procedure for coalitional games with veto players. The procedure is similar to the one presented by Dagan et al. (1997) for bankruptcy problems. According to it, a player, the proposer, makes a proposal that the remaining players must accept or reject, and con ict is solved bilaterally between the rejector and the proposer. We allow the proposer to make sequential proposals over several periods. If responders are myopic maximizers (i.e. consider each period in isolation), the only equilibrium outcome is the serial rule of Arin and Feltkamp (2012) regardless of the order of moves. If all players are farsighted, the serial rule still arises as the unique subgame perfect equilibrium outcome if the order of moves is such that stronger players respond to the proposal after weaker ones.

On the impact of independence of irrelevant alternatives: the case of two-person NTU games

On several classes of n-person NTU games that have at least one Shapley NTU value, Aumann characterized this solution by six axioms: Non-emptiness, efficiency, unanimity, scale covariance, conditional additivity, and independence of irrelevant alternatives (IIA). Each of the first five axioms is logically independent of the remaining axioms, and the logical independence of IIA is an open problem. We show that for n = 2 the first five axioms already characterize the Shapley NTU value, provided that the class of games is not further restricted. Moreover, we present an example of a solution that satisfies the first five axioms and violates IIA for two-person NTU games (N, V) with uniformly p-smooth V(N).

The Relevance of Relative Position in Ultimatum Games

This paper investigates the effect of focal points and initial relative position in the outcome of a bargaining process. We conduct two on-line experiments. In the first experiment we attempt to replicate Güth, Huck and Müller's (2001) results about the relevance of equal splits. In our second experiment, we recover the choices of participants in forty mini-ultimatum games. This design allows us to test whether the equal split or any other distribution or set of distributions are salient. Our data provide no support for a focal-point explanation but we find support for an explanation based on relative position. Our results confirm that there is a norm against hyper-fair offers. Proposers are expected to behave selfishly when the unselfish distribution leads to a change in the initial relative position.