Psychological, social and cognitive resources and the mental wellbeing of the poor.

Our study takes advantage of unique data to quantify deficits in the psychosocial and cognitive resources of an extremely vulnerable subpopulation-those experiencing housing vulnerability-in an advanced, high-income country (Australia). Groups such as these are often impossible to study using nationally representative data sources because they make up a small share of the overall population. We show that those experiencing housing vulnerability sleep less well, have more limited cognitive functioning, and less social capital than do those in the general population. They are also less emotionally stable, less conscientious, more external, and more risk tolerant. Collectively, these deficits in psychosocial and cognitive resources account for between 24-42% of their reduced life satisfaction and their increased mental distress and loneliness. These traits also account for a large proportion of the gap in mental wellbeing across different levels of housing vulnerability

Tocqueville, Alexis de (1805-1859)

Alexis de Tocqueville (1805–1859) was a French intellectual and politician, who has been variously considered as historian, sociologist, and political theorist. His most well-known work is Democracy in America (1835–1840), a classic study not only of democracy in America but of democracy itself. Sociologists have found in this analysis of the early years of the American Republic a seminal source of inspiration for the study of contemporary American society and politics. By the 1970s, the interest of sociologists in Tocqueville’s work began to dwindle. By contrast, in political science Tocqueville’s status as a classic thinker of democracy was never in question. In recent years, however, sociologists have joined political scientists in responding to Tocqueville’s call for a “new political science”. His writings provide sociologists with an enduring source of inspiration for the analysis of social problems such as slavery, revolution, inequality, individualism, materialism, religion and colonialism.info:eu-repo/semantics/submittedVersio

A numerical study of the spectrum and eigenfunctions on a tubular arc

The Hamiltonian for a particle constrained to move on the surface of a curved nanotube is derived using the methods of differential forms. A two-dimensional Gram-Schmidt orthonormalization procedure is employed to calculate basis functions for determining the eigenvalues and eigenstates of a tubular arc (a nanotube in the shape of a hyperbolic cosine) with several hundred scattering centers. The curvature of the tube is shown to induce bound states that are dependent on the curvature parameters and bend location of the tube.Comment: 14 pages, 5 tables, 6 figure

Revisiting Tocqueville: Citizenship Norms, Political Repertoires, and Cultural Participation

What are the reasons for Tocqueville’s eternal youth?” This is the question Raymond Boudon asks in his recent book, Tocqueville for Today (Boudon 2006: 2). In other words, why do we keep reading Democracy in America, a book written in the 1830s, in order to understand how liberal democracy works today, both in the US and elsewhere? Boudon’s answer — that Tocqueville gave us a new and innovative sociological analysis that has yet to be surpassed — points to the exceptional character of his contribution to the understanding of modern societies. Alongside the names of Weber and Durkheim, Boudon doubtless includes Tocqueville as one of his most admired classic social thinkers. Curiously enough, Boudon’s assessment of Tocqueville as a sociological classic was itself an exceptional judgment only a generation ago

Curvature induced toroidal bound states

Curvature induced bound state (E < 0) eigenvalues and eigenfunctions for a particle constrained to move on the surface of a torus are calculated. A limit on the number of bound states a torus with minor radius a and major radius R can support is obtained. A condition for mapping constrained particle wave functions on the torus into free particle wave functions is established.Comment: 6 pages, no figures, Late

Granular Impact: A Grain-scale Approach

This work summarizes a series of studies on two-dimensional granular impact, where an intruding object strikes a granular material at high speed. Many previous studies on granular impact have used a macroscopic force law, which is dominated by an inertial drag term proportional to the intruder velocity squared. The primary focus here is on the microscopic force response of the granular material, and how the grain-scale effects give rise to this inertial drag term. We show that the inertial drag arises from intermittent collisions with force-chain-like structures. We construct a simple collisional model to explain the inertial drag, as well as off-axis instability and rotations. Finally, we show how the granular response changes when the intruder speed approaches $d/t_c$, leading to a failure of the inertial drag description in this regime. Here, $d$ is the mean particle diameter and $t_c$ the characteristic momentum-transfer time between two grains.Comment: This is draft version of a book chapter appearing in "Rapid Penetration into Granular Media" (eds. Iskander et al.

Electron wave functions on T2T^2 in a static magnetic field of arbitrary direction

A basis set expansion is performed to find the eigenvalues and wave functions for an electron on a toroidal surface $T^2$ subject to a constant magnetic field in an arbitrary direction. The evolution of several low-lying states as a function of field strength and field orientation is reported, and a procedure to extend the results to include two-body Coulomb matrix elements on $T^2$ is presented.Comment: 18 pages, 6 figure

Curvature effects on surface electron states in ballistic nanostructures

The curvature effect on the electronic states of a deformed cylindrical conducting surface of variable diameter is theoretically investigated. The quantum confinement of electrons normal to the curved surface results in an effective potential energy that affects the electronic structures of the system at low energies. This suggests the possibility that ballistic transport of electrons in low-dimensional nanostructures can be controlled by inducing a local geometric deformation.Comment: 11 pages, 3 figure