During the past years, the H1 and ZEUS Collaborations at DESY-HERA have put a significant effort into the experimental study of semi-inclusive deep inelastic scattering (sDIS) ep → eBX . In this process, in addition to the scattered electron (or positron) e, some specific final-state hadron B, or the flow of the hadronic energy into a given region of phase space, is observed. The produced data ...

Germany 3 The successful implementation of Internet-based spatial data infrastructures (SDI) requires the adoption of a compatible suite of standards to enable interoperability. The proliferation of new standards and new versions of old standards raises issues of dependency and compatibility that may impede the implementation of SDI architectures. This article proposes a suite of geospatial sta...

We show that the trace formula interpretation of the explicit formulas expresses the counting function N(q) of the hypothetical curve C associated to the Riemann zeta function, as an intersection number involving the scaling action on the adèle class space. Then, we discuss the algebraic structure of the adèle class space both as a monoid and as a hyperring. We construct an extension Rconvex of...

Several architectures have been proposed to enhance point-to-point architectures with the addition of multiple bus systems. In particular, we consider an architecture for a massively parallel system where processors are connected solely by buses. These archi-tectures can use the power of bus technologies, providing a way to interconnect much more processors in a simple and eecient manner. In th...

In this paper we focus on the semantic heterogeneity problem as one of the main challenges in current Spatial Data Infrastructures (SDIs). We first report on the state of the art in reducing such a heterogeneity in SDIs. We then consider a particular geo-service integration scenario. We discuss an approach of how to semantically coordinate geographic services, which is based on a view of the se...

The complexity of communications and relationships between sectors and agencies to achieve a common understanding of spatially related issues across a jurisdiction is paramount for any economy, management of the environment, social issues and security. On the other hand, the need to create multi-participant, decisionsupported environments to address the issues of sustainable development and imp...

Abstra t Di erentiated servi e approa h has been proposed as a potential solution to provide Quality of Servi es (QoS) in the next generation Internet. The ultimate goal of end-to-end servi e di erentiation an be a hieved by omplementing the network-level QoS with the servi e differentiation at the Internet servers. In this paper, we have presented a detailed study of the performan e of servi e...

Buscamos neste trabalho analisar uma Sequência Didática Investigativa (SDI) elaborada por acadêmicos/as de Ciências Biológicas, participantes do Programa Institucional Bolsas Iniciação à Docência PIBID/Ciências, após a realização encontros semanais que visaram discussão sobre o Ensino Investigação. Procuramos também identificar e avaliar quais preceitos investigativos são contemplados nessa seq...