CAC controlled services sharing a link with connectionless data services in an ATM network: a performance evaluation study

In the B-ISDN there is a provision for four classes of services, all of them supported by a single transport network (the ATM network). Three of these services, the connected oriented (CO) ones, permit connection access control (CAC) but the fourth, the connectionless oriented (CLO) one, does not. Therefore, when CLO service and CO services have to share the same ATM link, a conflict may arise. This is because a bandwidth allocation to obtain maximum statistical gain can damage the contracted ATM quality of service (QOS); and vice versa, in order to guarantee the contracted QOS, the statistical gain have to be sacrificed. The paper presents a performance evaluation study of the influence of the CLO service on a CO service (a circuit emulation service or a variable bit-rate service) when sharing the same link

EdShare: Sharing for learning and teaching

A powerpoint presentation given by Hugh Davis and Debra Morris at the University of Southampton Learning and Teaching Week event 2 April 2008.

Heterogeneity and the formation of risk - sharing coalitions

We offer a new explanation of partial risk sharing based on coalition formation and segmentation of society in a risky environment, without assuming limited commitment and imperfect information. Heterogenous individuals in a society freely choose with whom they will share risk. A partition belonging to the core of the membership game obtains. Perfect risk sharing does not necessarily arise. Focusing on mutual insurance rule and assuming that individuals only differ with respect to risk, we show that the core partition is homophily-based. The distribution of risk affects the number and size of these coalitions. Individuals may pay a lower risk premium in riskier societies. A higher heterogeneity in risk leads to a lower degree of risk sharing. We discuss how the endogenous partition of society into risk-sharing coalitions may shed light on empirical evidence on partial risk sharing. The case of heterogenous risk aversion leads to similar results.

The secret room.

Pertenece a un amplio programa infantil de lectura que abarca distintos niveles de edad y, por tanto, de conocimientos. Se abordan las necesidades de lectura en los niños y la amplia variedad de habilidades que necesitan adquirir para su aprendizaje y, se destaca, también, la importancia de la narración en las historias y el orden recomendado para su lectura. En el nivel cuatro, existe en los distintos libros que lo forman, una continuidad narrativa en las aventuras y fantasías que viven un grupo de amigos y su perro en torno a una llave mágica.

Bertha's secret battle.

Forma parte de una colección de libros de ficción estructurada en varias etapas, desde la diez a la catorce, y que tiene como finalidad que los alumnos de entre 7 y 11 años adquieran una mayor capacidad lectora. Para ello, las formas narrativas de las historias se hacen cada vez más complejas y se amplia el vocabulario de ellas; se aumentan el número de páginas y de texto y se reduce el número de ilustraciones. Bertha y Fiona son unas gemelas que viven juntas, lo comparten todo pero, en su trabajo, siempre es Fiona la ganadora.

Professor Puffendorf's secret potions : activities and adapted tex by Jane Cadwallader.

El profesor Puffendorf es el más grande del mundo científico. Su laboratorio es un lugar lleno de botellas y tubos, máquinas que rechinan, y un viejo armario marcado como, alto secreto donde se encuentran sus secretas pociones que nunca han sido probadas. Un día sale y deja a su asistente y a su mascota. Ahora Enzo tiene la oportunidad tener en sus manos las las pociones. La historia utiliza un lenguaje adecuado para niños pequeños. El vocabulario, los temas, y las estructuras utilizadas son las que se encuentran en los dos primeros grados de primaria de inglés. Incluye un diccionario imagen con el vocabulario clave de la historia y cuaderno de actividades.

Beliefs about the effects of social sharing of emotion in alexithymia

Resumen tomado de la publicación

Sharing and visualizing environmental data using Virtual Globes

Virtual globe technology holds many exciting possibilities for environmental science. These easy-to-use, intuitive systems provide means for simultaneously visualizing four-dimensional environmental data from many different sources, enabling the generation of new hypotheses and driving greater understanding of the Earth system. Through the use of simple markup languages, scientists can publish and consume data in interoperable formats without the need for technical assistance. In this paper we give, with examples from our own work, a number of scientific uses for virtual globes, demonstrating their particular advantages. We explain how we have used Web Services to connect virtual globes with diverse data sources and enable more sophisticated usage such as data analysis and collaborative visualization. We also discuss the current limitations of the technology, with particular regard to the visualization of subsurface data and vertical sections.

Institutional sustainability: at what price? UNDP and the new cost-sharing model in Brazil

By the turn of the twenty-first century, UNDP had embraced a new form of funding based on ‘cost-sharing’, with this source accounting for 51 per cent of the organisation’s total expenditure worldwide in 2000. Unlike the traditional donor - recipient relationship so common with development projects, the new cost-sharing modality has created a situation whereby UNDP local offices become ‘subcontractors’ and agencies of the recipient countries become ‘clients’. This paper explores this transition in the context of Brazil, focusing on how the new modality may have compromised UNDP’s ability to promote Sustainable Human Development, as established in its mandate. The great enthusiasm for this modality within the UN system and its potential application to other developing countries increase the importance of a systematic assessment of its impact and developmental consequences.