Objective. The purpose of this article is to explore the additive and moderating effects of neighborhood context on substance use among youth. Methods. Using a regional sample of adolescents and matching the data to Census tracts, we use hierarchical linear modeling to examine the relationship between neighborhood disadvantage and neighborhood instability on alcohol and marijuana use while cont...

al contours of American social inequality have been transformed by the rapid growth in the prison and jail population.1 America’s prisons and jails have produced a new social group, a group of social outcasts who are joined by the shared experience of incarceration, crime, poverty, racial minority, and low education. As an outcast group, the men and women in our penal institutions have little a...

Recent advances in nanophotonics open the way for promising applications towards efficient single molecule fluorescence analysis. In this review, we discuss how photonic methods bring innovative solutions for two essential questions: how to detect a single molecule in a highly concentrated solution, and how to enhance the faint optical signal emitted per molecule? The focus is set primarily on ...

This paper explores the relationships among neighborhood disadvantage, stress, and the likelihood of drug use in a sample of adults (N = 1,101). Using the 1995 Detroit Area Study in conjunction with tract-level data from the 1990 census, we find a positive relationship between neighborhood disadvantage and drug use, and this relationship remains statistically significant net of controls for ind...

A density functional theory (DFT) is presented for describing the distributions of small ions around an isolated infinitely long polyanionic DNA molecule in the framework of the restricted primitive model. The hard-sphere contribution to the excess Helmholtz energy functional is derived from the modified fundamental measure theory, and the electrostatic interaction is evaluated through a quadra...

YLLINE'(theophylline ethylenediamine) is one of the most useful drugs employed in the management of bronchial asthma . Its therapeutic effects are closely related to its blood level.' This should approximate from 5 to 9 mcg/ml in serum. Segal et al in 1949 demonstrated that a rectal solution of 0 .5 gm of aminophylline in 15 cc water yielded a significant degree of protection against histamine ...

OBJECTIVE Disparities in sleep duration and efficiency between Black/African American (AA) and White/European American (EA) adults are well-documented. The objective of this study was to examine neighborhood disadvantage as an explanation for race differences in objectively measured sleep. METHODS Data were from 133 AA and 293 EA adults who participated in the sleep assessment protocol of the...

Both self-report and official crime data have known limitations, leading to the critical question as to whether inferences about the adolescent life-course of crime are different across these data sources. Using both official and self-report arrest data on a sample of subjects drawn from the Project on Human Development in Chicago Neighborhoods (PHDCN) longitudinal cohort study, this paper exam...

Newcastle disease (ND) is one of the most serious illnesses of chickens. Live vaccines are widely used to prevent chicken from the disease all over the world. To access the effective and potentiate ND vaccine, a homogenous subpopulation from LaSota strain was selected following cultivation of the virus on primary chicken embryofibroblast (CEF) cells. Pathogenicity indices and molecular characte...

the scattered stories, due to the way they are put together in the shahnameh, show a thoughtful and systematic pattern and tell more than what they have in their appearance. according to the tradition of the shahnameh research, the book is divided into the following sections: mythical, heroic, and historical. although clear lines do not indicate this classification, the interval and overlapping...