Identified particle measurements at large transverse momenta from p+p to Au+Au collisions at RHIC

Measurements of various particle species over an extended momentum range provide a sensitive experimental tool for investigating particle production mechanisms in hadronic collisions. Comparison of the spectral shapes from different collision centralities measured with the STAR detector at RHIC allows one to study the interplay of soft and hard particle production for mesons and investigate various baryon-meson effects. Systematic studies of identified particle spectra for various colliding systems and different incident energies provide additional insights toward the interplay between fragmentation and non-fragmentation contributions to the particle production. In these proceedings we present a systematic study of transverse momentum spectra for charged pions, protons and antiprotons from Au+Au and Cu+Cu data at sqrt(s_NN)=200 and 62.4 GeV as a function of collision centrality. We compare those measurements with p+p and d+Au data, investigating the system effects on energy loss.Comment: 6 pages, 4 figures, proceedings for the Lake Louise Winter Institute 2007, 19th-24th February 2007, Alberta, Canad

System size dependence of freeze-out properties at RHIC

The STAR experiment at RHIC has measured identified pi(+/-), K(+/-) and p(pbar) spectra and ratios from sqrt(s_NN) = 62.4 and 200 GeV Cu+Cu collisions. The new Cu+Cu results are studied with hydro-motivated blast-wave and statistical model frameworks in order to characterize the freeze-out properties of this system. Along with measurements from Au+Au and p+p collisions, the obtained freeze-out parameters are discussed as a function of collision energy, system size, centrality and inferred energy density. This multi-dimensional systematic study reveals the importance of the collision geometry and furthers our understanding of the QCD phases.Comment: 6 pages, 6 figures, poster proceedings for the Quark Matter 2006 Conference, Shanghai, China, 14th-20th Novermber 2006, submitted to the International Journal of Modern Physics

Method of construction of a multi-cell solar array

The method of constructing a high voltage, low power, multicell solar array is described. A solar cell base region is formed in a substrate such as but not limited to silicon or sapphire. A protective coating is applied on the base and a patterned etching of the coating and base forms discrete base regions. A semiconductive junction and upper active region are formed in each base region, and defined by photolithography. Thus, discrete cells which are interconnected by metallic electrodes are formed

Palestine and the Palestinians in British Political Elite Discourse: From "The Palestine Problem" to "The Two-State Solution"

This article examines how the Palestinians have been represented in British political elite discourse between 1915 and 2015 as an exploration into the role of such discourse in framing the identity and thence shaping the fate of a community or people seeking national independence. It also makes some observations about the significance of political violence or war in bringing about paradigm shifts in the discourse. The analysis reveals that the way the British depicted the Palestinian Arabs and their cause has changed over time, but at no point did the discourse identify independent statehood for the Palestinians as a central or stand-alone objective of policy

No friend of democratization: Europe's role in the genesis of the Arab Spring'

The argument advanced in this article is that EU policies helped to trigger the so-called Arab Spring, not by intention but by default. This contention is advanced through an examination of four strands of EU policy towards those countries designated as Mediterranean Partner Countries (MPCs) under the Euro-Mediterranean Partnership Programme (EMP) and the European Neighbourhood Policy (ENP), namely: trade and economic development, political reform, the ‘peace process’, and regional security (including migration control). What emerges is that the EU has not just departed from its own normative principles and aspirations for Arab reform in some instances, but that the EU has consistently prioritized European security interests over ‘shared prosperity’ and democracy promotion in the Mediterranean. The net result is a set of structured, institutionalized and securitized relationships which will be difficult to reconfigure and will not help Arab reformers attain their goals

Liquid immersion apparatus for minute articles

Apparatus is disclosed for immersing minute integrated circuit chips in an etching solution in manufacturing integrated circuits during research and development. The apparatus includes a holder, having a handle and basket support for carrying a removable unitary basket and lid structure where fluid flow-through passages are formed, and wherein graduated openings in the handle provide for adjustably supporting the basket in a breaker at a desired level

Shifting paradigms: how British politics has depicted Palestine

To bring something new to discussions about the Israeli-Palestinian conflict is not easy. It has been discussed from almost every angle imaginable and yet defies agreement. If anything, today the conflict arouses more passionate argumentation than ever and seemingly serves as a vehicle through which contemporary Britons choose to express their fears and aspirations about their own identity. Yet in this connection, Rosemary Hollis argues that it is worthwhile exploring further just what is meant by national or cultural identity, using British representations of the Palestinians as a case study