The lattice QCD simulation of the quark-gluon mixed condensate g<\bar{q} \sigma G q> at finite temperature and the phase transition of QCD

The thermal effects on the quark-gluon mixed condensate g<\bar{q} \sigma G q>, which is another chiral order parameter, are studied using the SU(3)c lattice QCD with the Kogut-Susskind fermion at the quenched level. We perform the accurate measurement of the mixed condensate as well as the quark condensate for 0MeV<=T<=500MeV. We observe the sharp decrease of both the condensates around T_c \simeq 280MeV, while the thermal effects below T_c are found to be weak. We also find that the ratio m_0^2 = g<\bar{q} \sigma G q>/ is almost independent of the temperature even in the very vicinity of T_c, which indicates that the two condensates have nontrivial similarity in the chiral behaviors. We also present the correlation between the condensates and the Polyakov loop to understand the vacuum structure of QCD.Comment: Talk given at the XXII International Symposium on Lattice Field Theory (LATTICE 2004), Fermilab, Batavia, Illinois, USA, 21-26 June 2004, Lattice2004(non-zero), 3 pages, 3 figure

[Review of] Ambrose Y.C. King and Rance P.L. Lee, eds. Social Life and Development in Hong Kong

This book is a collection of research papers on the political and social conditions of Hong Kong sponsored by the Social Research Centre of The Chinese University of Hong Kong. The collection is not a comprehensive coverage of such conditions in Hong Kong. I t is a selective report with the purpose of updating existing information. The new information will provide a better understanding of Hong Kong\u27s problems and serve as a resource in coping with these problems

Rouse Modes of Self-avoiding Flexible Polymers

Using a lattice-based Monte Carlo code for simulating self-avoiding flexible polymers in three dimensions in the absence of explicit hydrodynamics, we study their Rouse modes. For self-avoiding polymers, the Rouse modes are not expected to be statistically independent; nevertheless, we demonstrate that numerically these modes maintain a high degree of statistical independence. Based on high-precision simulation data we put forward an approximate analytical expression for the mode amplitude correlation functions for long polymers. From this, we derive analytically and confirm numerically several scaling properties for self-avoiding flexible polymers, such as (i) the real-space end-to-end distance, (ii) the end-to-end vector correlation function, (iii) the correlation function of the small spatial vector connecting two nearby monomers at the middle of a polymer, and (iv) the anomalous dynamics of the middle monomer. Importantly, expanding on our recent work on the theory of polymer translocation, we also demonstrate that the anomalous dynamics of the middle monomer can be obtained from the forces it experiences, by the use of the fluctuation-dissipation theorem.Comment: 16 pages (double spaced), 5 figures, small changes and corrections, to appear in J. Chem. Phy

America\u27s Anti-Violence Campaign: The Use of Mediation to Reduce the Incidence of Workplace Violence

The author recommends that companies incorporate a mediation program into their anti-violence plans

IPR-Standardization Interaction in Japanese Firms:Evidence from Questionnaire Survey

To disentangle the relations between standards, innovation and competition, this paper examined the processes and effects of standardization in Japanese firms. The realities of their activities were provided by a postal questionnaire sent to progressive large firms in Japanese industries. Overall, although Japanese firms have sufficiently understood the significance of increased standardization, they donft always actively and strategically involve in the standardization process. The conclusion may be derived from the respondentsf evaluations that 1) the effects of standardization are less likely to be profitable; 2) formal standard setting organizations are not always an effective coordination mechanism of intellectual property rights; and 3) they donft have a sufficient internal institution for standardization strategy. They are rather skeptical of particularly formal and semi-formal standardization processes.Consensus-based Standards, Split Type of Standardization, Intellectual Property Rights, Standards Setting Organizations; Patent Hold-up

Response of Single Polymers to Localized Step Strains

In this paper, the response of single three-dimensional phantom and self-avoiding polymers to localized step strains are studied for two cases in the absence of hydrodynamic interactions: (i) polymers tethered at one end with the strain created at the point of tether, and (ii) free polymers with the strain created in the middle of the polymer. The polymers are assumed to be in their equilibrium state before the step strain is created. It is shown that the strain relaxes as a power-law in time $t$ as $t^{-\eta}$. While the strain relaxes as $1/t$ for the phantom polymer in both cases; the self-avoiding polymer relaxes its strain differently in case (i) than in case (ii): as $t^{-(1+\nu)/(1+2\nu)}$ and as $t^{-2/(1+2\nu)}$ respectively. Here $\nu$ is the Flory exponent for the polymer, with value $\approx0.588$ in three dimensions. Using the mode expansion method, exact derivations are provided for the $1/t$ strain relaxation behavior for the phantom polymer. However, since the mode expansion method for self-avoiding polymers is nonlinear, similar theoretical derivations for the self-avoiding polymer proves difficult to provide. Only simulation data are therefore presented in support of the $t^{-(1+\nu)/(1+2\nu)}$ and the $t^{-2/(1+2\nu)}$ behavior. The relevance of these exponents for the anomalous dynamics of polymers are also discussed.Comment: 10 pages, 1 figure; minor errors corrected, introduction slightly modified and references expanded; to appear in Phys. Rev.