Using 1990 data for 222 metropolitan areas, this study extends the traditional variables examined in models of homicide and uses regression analysis to test the viability of three alternative theories that may explain high rates of African-American homicide victimization. The first approach examines the extent to which weak forms of social control have contributed to high homicide rates. The se...

The Multiple Point Principle, according to which there exist many vacuum states with the same energy density, is put forward as a fine-tuning mechanism. By assuming the existence of three degenerate vacua, we derive the hierarchical ratio between the fundamental (Planck) and electroweak scales in the Standard Model. In one of these phases, 6 top quarks and 6 anti-top quarks bind so strongly by ...

Realistic calculation of NLC luminosity has been performed using particle tracking in DI-MAD and beam-beam simulations in GUINEA-PIG code for various values of beam emit-tance, energy and beta functions at the Interaction Point (IP). Results of the simulations are compared with analytic luminosity calculations. The optimum range of IP beta functions for high luminosity was identified. Abstract ...

We show that Dark Energy contributions can not be determined from noise measurements of Josephson junctions, as was recently suggested in a paper by C. Beck and M.C. Mackey. Zero-point energies and non-gravitational effects In a recent paper [1] of C. Beck and M.C. Mackey the possibility was suggested that part of the zero-point energy of the radiation field that is gravitationally active can b...

This paper investigates the relationship between aggregate consumption and permanent income. It applies a new empirical approach to cointegration analysis that builds on Stock and Watson’s (1988a) common stochastic trends representation. The permanent and transitory components of consumption and income are estimated directly using the Kalman filter and are allowed to be correlated. This approac...

There has been a recent stimulus in the study of alternative theories of gravity lately, mostly triggered from combined motivation coming from cosmology/astrophysics and high energy physics. Among the proposed theories, one that has attracted much attention is f(R) gravity. It is certainly debatable whether such a simplistic modification of General Relativity can constitute a viable alternative...

We construct bosonic and fermionic locally covariant quantum field theories on curved backgrounds for large classes of fields. We investigate the quantum field and n-point functions induced by suitable states.

The finiteness of fossil fuels implies that future electric power systems may predominantly source energy from fuel-free renewable resources like wind and solar. Evidently, these power systems without fuel will be environmentally benign, sustainable, and subject to milder failure scenarios. Many of these advantages were projected decades ago with the definition of the soft energy path, which de...

The minimum energy requirements of six different heat-integrated multieffect and three nonintegrated distillation arrangements for separating a ternary mixture have been considered. The focus is on a heat-integrated complex distillation configuration, called a multieffect prefractionator arrangement. The comparison of the different arrangements is based on the minimum vapor flow rates at infini...

Asymptotically good sequences of ramp secret sharing schemes were given in [4] by using one-point algebraic geometric codes defined from asymptotically good towers of function fields. Their security is given by the relative generalized Hamming weights of the corresponding codes. In this paper we demonstrate how to obtain refined information on the RGHWs when the codimension of the codes is smal...