University of Rhode Island

About: University of Rhode Island is a education organization based out in Kingston, Rhode Island, United States. It is known for research contribution in the topics: Population & Bay. The organization has 11464 authors who have published 22770 publications receiving 841066 citations. The organization is also known as: URI & Rhode Island College of Agriculture and the Mechanic Arts.

Agglomeration Index : Towards a New Measure of Urban Concentration

Abstract: A common challenge in analyzing urbanization is the data. The United Nations (UN) compiles information on urbanization (urban population and its share of total national population) that is reported by various countries but there is no standardized definit

Antiferromagnetic long-range order in the anisotropic quantum spin chain

Abstract: This is a study of the ground-state properties of the one-dimensional spin-s (12⩽s<∞) anisotropic XYZ antiferromagnet in a magnetic field of arbitrary direction. It provides the first rigorous results for the general case of this model in non-zero field. By exact calculations we find the existence of an ellipsoidal surface h = hN in field space where the ground state is of the classical two-sublattice Neel type with non-zero antiferromagnetic long-range order. At hN there are no correlated quantum fluctuations. We give upper and lower bounds for the critical field hc where antiferromagnetic long-range order is suppressed by the field. The zero-temperature phase diagrams are discussed for a few representative cases.

The LEARn model: an epigenetic explanation for idiopathic neurobiological diseases.

Abstract: Neurobiological disorders have diverse manifestations and symptomology. Neurodegenerative disorders, such as Alzheimer’s disease, manifest late in life and are characterized by, among other symptoms, progressive loss of synaptic markers. Developmental disorders, such as autism spectrum, appear in childhood. Neuropsychiatric and affective disorders, such as schizophrenia and major depressive disorder, respectively, have broad ranges of age of onset and symptoms. However, all share uncertain etiologies, with opaque relationships between genes and environment. We propose a ‘Latent Early-life Associated Regulation’ (LEARn) model, positing latent changes in expression of specific genes initially primed at the developmental stage of life. In this model, environmental agents epigenetically disturb gene regulation in a long-term manner, beginning at early developmental stages, but these perturbations might not have pathological results until significantly later in life. The LEARn model operates through the regulatory region (promoter) of the gene, specifically through changes in methylation and oxidation status within the promoter of specific genes. The LEARn model combines genetic and environmental risk factors in an epigenetic pathway to explain the etiology of the most common, that is, sporadic, forms of neurobiological disorders. Molecular Psychiatry (2009) 14, 992–1003; doi:10.1038/mp.2009.82

Working Toward Freedom from Violence The Process of Change in Battered Women

Abstract: This article explores the utility of applying the Transtheoretical Model of behavior change to the problems facing battered women with a goal of understanding and systematically measuring how battered women work to overcome the abuse in their lives. The central constructs of the Transtheoretical Model—stages of change, processes of change, decisional balance, self-efficacy—are described with supporting research, and the relevance of this model for the issues with which battered women deal is discussed. An awareness of the process and stages of change may be useful for members of the criminal justice system and the helping professions in their dealings with victims of abuse.