REGIONAL POVERTY IN MICHIGAN: RURAL AND URBAN DIFFERENCE

This paper examines the relationship between the quality of local labor force and variation in regional poverty outcomes among Michigan areas. A regional poverty model is derived from the household production model for that purpose. The US Census 2000 data on small geographical areas of Michigan (Census Block Groups) is used for the analysis. It is found that the difference in regional poverty is explained primarily by differences in quality and quantity of labor available to a household. Second, heterogeneity of the model is detected with respect to a degree of urbanization. Also, the relation between average income and regional poverty is found to be nonlinear and distribution of income playing a major role in explanation poverty. Higher poverty rates in rural areas tend to persist over time.Community/Rural/Urban Development,

Characteristics of enzymatic induction provoked by chlordane

The effects of various stresses, such as restraint and lowering or raising of environmental temperature, in mice pretreated with chlordane were investigated. (Chlordane is an inhibitor of protein synthesis.) It was found that restraint or exposure to a cold environment for three hours mobilized the chlordane stored in the adipose tissue of mice

CONDOR: A Hybrid IDS to Offer Improved Intrusion Detection

Intrusion Detection Systems are an accepted and very useful option to monitor, and detect malicious activities. However, Intrusion Detection Systems have inherent limitations which lead to false positives and false negatives; we propose that combining signature and anomaly based IDSs should be examined. This paper contrasts signature and anomaly-based IDSs, and critiques some proposals about hybrid IDSs with signature and heuristic capabilities, before considering some of their contributions in order to include them as main features of a new hybrid IDS named CONDOR (COmbined Network intrusion Detection ORientate), which is designed to offer superior pattern analysis and anomaly detection by reducing false positive rates and administrator intervention

Possible attenuation of the G2 DNA damage cell cycle checkpoint in HeLa cells by extremely low frequency (ELF) electromagnetic fields

BACKGROUND: The issue remains unresolved as to whether low frequency magnetic fields can affect cell behaviour, with the possibility that they may be in part responsible for the increased incidence of leukaemia in parts of the population exposed to them. METHODS: Combined treatment of HeLa cells with gamma-irradiation (1, 3 and 5 Grays) and extra low frequency magnetic fields of ~50 Hz was carried out under rigorously controlled conditions. RESULTS: Synchronised cells progressing from S-phase arrived at mitosis on average marginally ahead of irradiation controls not exposed to ELF. In no instance out of a total of twenty separate experiments did this "double-insult" further delay entry of cells into mitosis, as had been anticipated. CONCLUSION: This apparently "non-genotoxic" agent (ELF) appears to be capable of affecting cells that would normally arrest for longer in G2, suggesting a weakening of the stringency of the late cycle (G2) checkpoint

Analytic Solutions to Coherent Control of the Dirac Equation

A simple framework for Dirac spinors is developed that parametrizes admissible quantum dynamics and also analytically constructs electromagnetic fields, obeying Maxwell's equations, which yield a desired evolution. In particular, we show how to achieve dispersionless rotation and translation of wave packets. Additionally, this formalism can handle control interactions beyond electromagnetic. This work reveals unexpected flexibility of the Dirac equation for control applications, which may open new prospects for quantum technologies

Dirac open quantum system dynamics: formulations and simulations

We present an open system interaction formalism for the Dirac equation. Overcoming a complexity bottleneck of alternative formulations, our framework enables efficient numerical simulations (utilizing a typical desktop) of relativistic dynamics within the von Neumann density matrix and Wigner phase space descriptions. Employing these instruments, we gain important insights into the effect of quantum dephasing for relativistic systems in many branches of physics. In particular, the conditions for robustness of Majorana spinors against dephasing are established. Using the Klein paradox and tunneling as examples, we show that quantum dephasing does not suppress negative energy particle generation. Hence, the Klein dynamics is also robust to dephasing

Some studies in the chemistry of mercury and lithium

The enhanced stability of perfluoroaromatic lithium species (compared with their hydrogen analogues) has been used to study their thermal degradation reactions and the reactions of the unstable intermediates thus produced, as effectively only one thermal reaction path exists. Attempts have been made to test existing hypotheses, and also to rationalise results by theoretical MO calculations. Especial emphasis has been put on 80mBr radio-labelling studies. A similar enhancement of stability for the perfluoro organo-mercurials makes some of them ideal substrates for solid state kinetic studies and a wide range of organo-mercury complexes has been studies by thermal and other techniques. Partly by way of comparison and partly as an extension of the work X-ray structure determinations have been carried out on the hydrogen analogue compounds as well as the fluoro-compounds