Czynniki ryzyka i czynniki chroniące związane z zachowaniami problemowymi – przegląd badań przeprowadzonych w Polsce

Publikacja wydana w ramach projektu „Terapia przez rozwój”. Program rozwoju sieci placówek dla młodzieży zagrożonej przedwczesnym wypadnięciem z systemu oświaty. Projekt współfinansowany ze środków Unii Europejskiej w ramach Europejskiego Funduszu Społeczneg

ELECTRONIC STRUCTURE OF GE IN SIO2

It is argued that one-electron theory is insufficient to account for the origin of the observed spectra of Ge in SiO2 ( alpha -quartz) crystals. A simple model is employed to show that impurity states responsible for ESR spectra of SiO2:Ge are stabilised by many-electron polarisation effects associated with the Ge atom itself and its immediate oxygen neighbour

Experimental Approaches at Linear Colliders

This report summarises the activity of the E3 working group "Experimental Approaches at Linear Colliders". The group was charged with examining critically the physics case for a linear collider of energy of order 1 TeV as well as the cases for higher energy machines, assessing the performance requirements and exploring the viability of several special options. In addition it was asked to identify the critical areas where R&D is required.Comment: 21 pages, 13 figures, to appear in the Proceedings of the APS / DPF / DPB Summer Study on the Future of Particle Physics (Snowmass 2001), Snowmass, Colorado, 30 Jun - 21 Jul 200

Effective Hironaka resolution and its Complexity (with appendix on applications in positive characteristic)

Building upon works of Hironaka, Bierstone-Milman, Villamayor and Wlodarczyk, we give an a priori estimate for the complexity of the simplified Hironaka algorithm. As a consequence of this result, we show that there exists canonical Hironaka embedded desingularization and principalization over fields of large characteristic (relative to the degrees of generating polynomials).Comment: 1 figure. arXiv admin note: substantial text overlap with arXiv:math/040140

Preempting the Police

The challenge of regulating police discretion is exacerbated by the fact that a great deal of questionable police activity exists in the legal shadows—unregulated practices that do not violate defined legal limits because they have generally eluded both judicial and legislative scrutiny. Local law enforcement strategies, like the maintenance of unauthorized police DNA databases and the routine practice of initiating casual street encounters, threaten fundamental notions of a free society but have largely failed to elicit a judicial or legislative response. This Article argues that, instead of establishing a floor for impermissible police misconduct and then ceding responsibility to the legislative branch, state courts should become more interventionist—prodding legislators to provide greater guidance about police activities that they condone by forcing them to explicitly endorse questionable police practices. Accordingly, state courts should use the intrastate preemption doctrine, which holds that state law can supplant municipal authority, to find that local police officers may not engage in certain activities. Rather than stifle municipal policy innovation, a finding of preemption can precipitate a policy debate that engages both legislators and the electorate in evaluating police activity. This “information-forcing” approach can promote a more democratic dialogue about police practices, provide stronger protections for the community, and confer greater legitimacy on the police activities that legislators choose to sanction