Users are not the enemy

Many system security departments treat users as a security risk to be controlled. The general consensus is that most users are careless and unmotivated when it comes to system security. In a recent study, we found that users may indeed compromise computer security mechanisms, such as password authentication, both knowing and unknowingly. A closer analysis, however, revealed that such behavior is often caused by the way in which security mechanisms are implemented, and users ’ lack of knowledge. We argue that to change this state of affairs, security departments need to communicate more with users, and adopt a user-centered design approach

Has the role of the Company Secretary changed: how can one person get across it all?

Legislation, the common law, equity, law reform programs, peak bodies, guidance notes, policy papers, ethics and morality are but some of the impositions on the daily life of the Company Secretary. All of these influences are ever-changing and amorphous, yet the Company Secretary is expected to deal confidently with them all on a regular basis

Spin Transfers for Baryon Production in Polarized pp Collisions at RHIC-BNL

We consider the inclusive production of longitudinally polarized baryons in ${\vec p}p$ collisions at RHIC-BNL, with one longitudinally polarized proton. We study the spin transfer between the initial proton and the produced baryon as a function of its rapidity and we elucidate its sensitivity to the quark helicity distributions of the proton and to the polarized fragmentation functions of the quark into the baryon. We make predictions using an SU(6) quark spectator model and a perturbative QCD (pQCD) based model. We discuss these different predictions, and what can be learned from them, in view of the forthcoming experiments at RHIC-BNL.Comment: 28 pages, 11 figure

Inhomogeneous Boundary Value Problem for Hartree Type Equation

In this paper, we settle the problem for time-dependent Hartree equation with inhomogeneous boundary condition in a bounded Lipschitz domain in $\mathbb{R}^{N}$. A global existence result is derived.Comment: 10 page

Transverse Radial Flow Effects on Two- and Three-Particle Angular Correlations

We use a simple a transverse radial boost scenario coupled to PYTHIA events to illustrate the impact radial flow may have on two- and three-particle correlation functions measured in heavy-ion collisions. We show that modest radial velocities can impart strong modifications to the correlation functions, some of which may be interpreted as same side ridge and away side structure that can mimic conical emission.Comment: 7 figures, 9 pages, Material presented in part by Pruneau at HOC 07, Montreal, Canada Accepted for publication in Nucl Phys A (Jan 2008

System-size scan of dihadron azimuthal correlations in ultra-relativistic heavy ion collisions

System-size dependence of dihadron azimuthal correlations in ultra-relativistic heavy ion collision is simulated by a multi-phase transport model. The structure of correlation functions and yields of associated particles show clear participant path-length dependences in collision systems with a partonic phase. The splitting parameter and root-mean-square width of away-side correlation functions increase with collision system size from $^{14}$N+$^{14}$N to $^{197}$Au+$^{197}$Au collisions. The double-peak structure of away-side correlation functions can only be formed in sufficient "large" collision systems under partonic phase. The contrast between the results with partonic phase and with hadron gas could suggest some hints to study onset of deconfinment.Comment: 8 pages, 4 figures, 1 table; Nucl. Phys. A (accepted

Whether to Protect or Punish: Legal Consequences of Contravening the Corporations Act

Two major developments in corporate law have once again brought to light the impact of the legal consequences of a Company Secretary, governance professional, director or other company officer contravening the Corporations Act 2001 (Cth) [CA]. These are the High Court of Australia decision in Rich v ASIC (2004)¹ on the meaning of civil penalties and the commencement of the Corporate Law Economic Law Reform Program (Audit Reform and Continuous Disclosure) Act 2004 (Cth) [CLERP 9].² Before delving into the complex issues that have arisen from these developments in Australian corporate law and their impact on the consequences of contraventions of the law, it is necessary to view corporate litigation as a process model. This means that, if there is an alleged contravention of the law, you can put three simple questions: 1. Who can bring the legal action? (who can sue) 2. What are the legal actions? (on what grounds) and 3. What are the remedies or sanctions being claimed? (the consequences). The primary purpose of this article is to answer the third question, as this has recently gone through some important major changes. But to help put this into context, the James Hardie asbestos claims, as discussed in the Jackson QC Report³, provide a perfect example of the process model

Single spin asymmetry in πp\pi p Drell-Yan process

We study the single spin asymmetries for the $\pi p^\uparrow\rightarrow\mu^+\mu^-X$ process. We consider the asymmetries contributed by the coupling of the Boer-Mulders function with the transversity distribution and the pretzelosity distribution, characterized by the $\sin(\phi+\phi_S)$ and $\sin(3\phi-\phi_S)$ azimuthal angular dependence, respectively. We estimate the magnitude of these asymmetries at COMPASS by using proper weighting functions. We find that the $\sin(\phi+\phi_S)$ asymmetry is of the size of a few percent and can be measured through the experiment. The $\sin(3\phi-\phi_S)$ asymmetry is smaller than the $\sin(\phi+\phi_S)$ asymmetry. After a cut on $q_T$, we succeed in enhancing the asymmetry.Comment: 11 pages, 2 figures, final version to appear in PL

Particle-Antiparticle Asymmetries of Λ\Lambda Production in Hadron-Nucleon Collisions

The particle-antiparticle asymmetries of $\Lambda$ production in 250 GeV/c $\pi^{\pm}$, $K^{\pm}$, and $p$ --nucleon collisions are studied with two model parametrizations of quark to $\Lambda$ fragmentation functions. It is shown that the available data can be qualitatively explained by the calculated results in both the quark-diquark model and a pQCD based analysis of fragmentation functions. The differences in the two model predictions are significant for $K^{\pm}$ beams, and high precision measurements of the asymmetries with detailed $x_F$ and $P_T$ information can discriminate between different predictions.Comment: 14 LaTex pages, 4 figures, to appear in Phys. Lett.

Are All Directors Created Equal? Reassessing the role of the chair in the light of ASIC v Rich

In 1963, on the steps of the Lincoln memorial in Washington, DC, Martin Luther King Jr made it known 'that all men are created equal'. Few people would argue with Dr King's philosophy but it would appear that company directors might be an exception to the rule. Indeed, equality in the boardroom is a different matter altogether; a difference made more palpable by the New South Wales Supreme Court decision in ASIC v Rich on 24 February 2003. The role of company directors has been in the international spotlight for some time now as a result of numerous high profile corporate collapses. Australia has not been alone in reconsidering its position on corporate governance, through, for example, the ASX's Corporate Governance Council, with the Higgs and Smith reviews in the United Kingdom and the Sarbanes-Oxley Act 2002 in the United States looking at similar issues. Predominantly, discussion concerning the chair of the board has revolved around issues of independence, with less attention being given to the legal responsibilities and accountabilities. However, these critical concerns came to the fore in the decision of Austin J in ASIC v Rich