Measurements of the proton structure function F2 for 0:11 < Q 2 < 20000 GeV 2 and 1:2 10 5 < x < 0:65 from ZEUS 1994-1997 measurements are presented. From ZEUS 1994 and 1995 F2 data the slopes dF2=d lnQ 2 at xed x and d ln F2=d ln(1=x) for x < 0:01 at xed Q 2 are derived. For the latter E665 data are also used. The transition region in Q2 is explored using the simplest non-perturbative models a...

PEM Fuel Cells are considered among the most promising technologies for hydrogen utilization in both stationary and automotive applications. The number of FC installations on board ships – alone or hybrid configuration with batteries is increasing significantly, although international regulations that drive their installation still missing. In this scenario, project TecBia aims to identify a de...

In a recent article, Barrett (2008) argued that a collection of five representational content features can explain both why people believe in God and why people do not believe in Santa Claus or Mickey Mouse. In this model – and within the cognitive science of religion as a whole – it is argued that representational content biases are central to belief. In the present paper, we challenge the not...

The ZEUS detector has been upgraded in a number of areas to prepare for the physics opportunities of HERA II. These upgrades, and their physics rationale and promise, are briefly outlined. The measurement of polarisation at HERA II, and its importance for the HERA II physics programme, is also discussed.

Highlights from the ZEUS experiment at HERA as of the DIS06 conference in April are shown. New results focus on measurements from the HERA II running period of inclusive DIS at high momentum transfer using polarised leptons and on their impact in combined QCD and electroweak fits. Investigation of the hadronic final state, both for inclusive and diffractive reactions, continues to challenge the...

Charged multiplicity distributions and the mean charged multiplicity have been investigated in inclusive neutral current deep inelastic ep scattering with the ZEUS detector at HERA using an integrated luminosity of 38.6pb −1. The measurements were performed in the current region of the Breit frame, as well as in the current fragmentation region of the hadronic center-of-mass frame. The KNO-scal...

NLO QCD fits using the DGLAP formalism have been made to the high precision ZEUS ep reduced cross-section data and to fixed target structure function data, in order to determine parton distribution functions and the value of αs(M 2 Z), taking full account of correlated systematic errors. The new high precision ZEUS data on the neutral current e+p reduced cross section [1] are fit to the predict...

This paper examines the history of Homo erectus and Homo sapiens in the Austral-Asian region bisected by the PEP II (Pole– Equator–Pole) transect, from Siberian Russia, south through Asia, insular Southeast Asia, Australasia and Oceania. Current evidence is reviewed for the timing of the arrival of humans along PEP II, their subsequent expansion through the region and their concurrent developme...

observed at HERA by the H1 collaboration was announced more than 10 years ago [1]. An excess of HERA I events above a priori expectations (not confirmed by ZEUS, where the analysis was performed in a more restricted phase space, see [2]) has given rise to many speculations on physics beyond the Standard Model. These events continued to appear in runs at HERA II. Both H1 and ZEUS have recently p...

3. Features and Algorithms . . . . . . . . . . . . . . . . . . . . . . . . . . 3 3.1 Overview and critiques . . . . . . . . . . . . . . . . . . . . . . . . 3 3.2 Geometry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 3.3 MHD algorithms . . . . . . . . . . . . . . . . . . . . . . . . . . 6 3.4 Boundary conditions . . . . . . . . . . . . . . . . . . . . . . . . . 8 3.5 Self-gravity ...