Shifting sands

The article presents the proposed changes to the New Zealand Draft Curriculum on the Nature of Science. In July 2006, the draft was released to school and the wider educational community for consultation on the national curriculum policy. It asserts to help science teachers to develop their understanding on nature of scientific knowledge and on how the community can effectively teach such aspects of the curriculum in the classroom setting

System size, energy and pseudorapidity dependence of directed and elliptic flow at RHIC

PHOBOS measurements of elliptic flow are presented as a function of pseudorapidity, centrality, transverse momentum, energy and nuclear species. The elliptic flow in Cu-Cu is surprisingly large, particularly for the most central events. After scaling out the geometry through the use of an alternative form of eccentricity, called the participant eccentricity, which accounts for nucleon position fluctuations in the colliding nuclei, the relative magnitude of the elliptic flow in the Cu-Cu system is qualitatively similar to that measured in the Au-Au system.Comment: Presented at the 18th International Conference on Ultra-Relativistic Nucleus-Nucleus Collisions in Budapest, Hungary, Aug. 4-9, 200

Vertex Reconstruction Using a Single Layer Silicon Detector

Typical vertex finding algorithms use reconstructed tracks, registered in a multi-layer detector, which directly point to the common point of origin. A detector with a single layer of silicon sensors registers the passage of primary particles only in one place. Nevertheless, the information available from these hits can also be used to estimate the vertex position, when the geometrical properties of silicon sensors and the measured ionization energy losses of the particles are fully exploited. In this paper the algorithm used for this purpose in the PHOBOS experiment is described. The vertex reconstruction performance is studied using simulations and compared with results obtained from real data. The very large acceptance of a single-layered multiplicity detector permits vertex reconstruction for low multiplicity events where other methods, using small acceptance subdetectors, fail because of insufficient number of registered primary tracks.Comment: accepted for publication in Nucl. Instr. Meth.

Particle production at very low and intermediate transverse momenta in d+Au and Au+Au collisions

The transverse momentum spectra of identified charged particles have been measured at very low and intermediate transverse momenta in Au+Au collisions at sqrt(s_NN) = 62.4 GeV and d+Au collisions at sqrt(s_NN) = 200 GeV using the PHOBOS detector at RHIC. New results on charged particle production at very low p_T in central Au+Au collisions at sqrt(s_{NN) = 200 GeV in the centrality intervals 0-6% and 6-15% are presented. A comparison of the PHOBOS low-p_T data with predictions of a recent optical model is shown. The shapes of m_T spectra for d+Au and Au+Au collisions are compared.Comment: Presented at the 18th International Conference on Ultra-Relativistic Nucleus-Nucleus Collisions, Quark Matter 2005, Budapest, Hungary, Aug. 4-9, 200

Heavy ion collisions in the used nucleon model

It is shown that recently proposed by R.J. Glauber the used nucleon model combined with the assumption that the nucleon consists of two constituents (a quark and a diquark) describes well the PHOBOS data on particle production at midrapidity.Comment: 5 pages, 2 figure

Bourdieu, feminism and female physical culture: Gender reflexivity and the habitus-field complex

Feminist theorizing in the sociology of sport and physical culture has progressed through ongoing and intense dialogue with an array of critical positions and voices in the social sciences (e.g., Judith Butler, R.W. Connell, Michel Foucault). Yet, somewhat surprisingly, the work of French sociologist Pierre Bourdieu—arguably one of modern sociology’s “most important voices of social critique and theoretical innovation” (Krais, 2006, p. 120)—has gone largely unheard among critical sports scholars interested in gender (notable exceptions include Atencio, Beal & Wilson, 2009; Brown, 2006; Kay & Laberge, 2004; Laberge, 1995). In this paper I introduce recent feminist engagements with Bourdieu’s original work to a critical sports sociology readership via a case study of snowboarding culture and female snowboarders. I begin by briefly examining the efficacy of three of Bourdieu’s key concepts—capital, field and habitus—for explaining gender and embodiment in snowboarding culture. I then consider how the habitus-field complex can illustrate the “synchronous nature of constraint and freedom” (McNay, 2000, p. 61) for women in contemporary physical culture

‘Approve to Decline’: A feminist critique of ‘Fairness’ and ‘Discrimination’ in a case study of EEO in the New Zealand Public Sector

The present paper aims to look at the contexts of meanings that surround Equal Employment Opportunities (EEO) in practice, particularly for issues of gender justice. At the heart of the paper is a critical appraisal of one EEO event; an example drawn from the New Zealand public sector where claims to ‘gender disadvantage’ is made by an employee and responded to by the agency to which the claim is made. The event is representative of an instance where all parties are equally claiming the need to further EEO and fairness. By deconstructing the language and context of EEO in practice, the paper argues the point that EEO policy is not implemented in discursively uncontested contexts. At a substantive level, the paper builds on feminist theoretical perspectives of social justice, and questions if the contemporary frameworks of meaning in the public sector can support transformations of relationships of disadvantage. More pertinently, it asks if the “removal of unfair disadvantage”, on which EEO strategies are based, constitutes the promotion of social and gender justice

Saving Wildlife around the World

Julia Back ’07 has been nose-to-nose with curious sea lions, beak-clacking albatross and ancient giant tortoises. Now she’s back in Oregon helping protect the wildlife she grew up around

Limiting fragmentation from scale-invariant merging of fast partons

Exploiting the idea that the fast partons of an energetic projectile can be treated as sources of color radiation interpreted as wee partons, it is shown that the recently observed property of extended limiting fragmentation implies a scaling law for the rapidity distribution of fast partons. This leads to a picture of a self-similar process where, for fixed total rapidity Y, the sources merge with probability varying as 1/y.Comment: 10 pages, 1 figure (2 eps files). Final version, also updated w.r.t. the published version in Phys. Lett. B665/1 (2008) pp. 35-3