The Selectionist Meaning of C. S. Peirce and B. F. Skinner

The Analysis of Verbal Behavior - The selectionist meaning of C. S. Peirce and B. F Skinner, which has an empirical existence, is advanced against essentialist meaning, which does not. Against a...     

Emerging dragonfly diversity at small Rhode Island (U.S.A.) wetlands along an urbanization gradient

Natal habitat use by dragonflies was assessed on an urban to rural land-use gradient at a set of 21 wetlands, during two emergence seasons (2004, 2005). The wetlands were characterized for urbanization level by using the first factor from a principal components analysis combining chloride concentration in the wetland and percent forest in the surrounding buffer zone. Measurements of species diversity and its components (species richness and evenness) were analyzed and compared along the urbanization gradient, as were distributions of individual species. Dragonfly diversity, species richness, and evenness did not change along the urbanization gradient, so urban wetlands served as natal habitat for numerous dragonfly species. However, several individual species displayed strong relationships to the degree of urbanization, and most were more commonly found at urban sites and at sites with fish. In contrast, relatively rare species were generally found at the rural end of the gradient. These results suggest that urban wetlands can play important roles as dragonfly habitat and in dragonfly conservation efforts, but that conservation of rural wetlands is also important for some dragonfly species.     

T. Brandsen,S. Cattacin,A. Evers,A. Zimmer (Eds.): Social Innovations in the Urban Context

VOLUNTAS: International Journal of Voluntary and Nonprofit Organizations -     

Exploring Adolescents’ Relationships with Non-Parental Adults Using the Non-Parental Adult Inventory (N.P.A.I.)

Adolescents’ relationships with non-parental adults is one identified protective factor that has received comparable little attention. Previous work indicates that significant, non-parental adults play an important role in adolescent development. This exploratory study examines the frequency of adolescent contact with non-parental adults, and their enjoyment of that contact using the Non-Parental Adult Inventory (N.P.A.I.). Gender and age differences among adolescent reports, and differences between parent and adolescent reports are explored. Frequency and reported enjoyment of adolescent contact within select categories of non-parental adults differed by gender. Parent and adolescent reports significantly differed with parents both underestimating and overestimating the strength of adolescents’ relationships with select adult groups. Results provide preliminary data regarding the nature of adolescents’ relationships with a broad range of non-parental adults.     

Everything you never wanted to know about special education . . . and were afraid to ask (I.D.E.A.)

Social workers who work with families and children are often unaware of the legal protections afforded to educational experiences for children, particularly to children with disabilities. Yet, all social workers, regardless of their practice setting, should be aware of the important educational rights to which children with disabilities and their families are entitled, as codified in the original legislation, P.L. 94-142, and its subsequent revisions. This legislation is currently entitled the "Individuals with Disabilities Education Act," or the "I.D.E.A." Provisions included in the I.D.E.A. are covered with which all states that receive federal educational funding are mandated to comply. Reviewed are the 13 "disabling conditions" that allow for students to qualify to receive special educational services, as long as one of the conditions is adversely impacting their educational success. It concludes with recommendations for social work advocacy regarding this legislation.     

Direct and indirect effects of human population density and land use on physical features and invertebrates of Iowa (U.S.A.) streams

To improve understanding of human impacts on headwater stream condition, we quantified relationships between human, terrestrial landscape, and stream system variables in 29 central Iowa watersheds. Across study watersheds, between 0 and 100 % of total land area was characterized as “urban” (developed and barren land), whereas cultivated land constituted between 0 and 71 % of watershed area. Several variables were measured for each stream and associated watershed. Strengths of correlative relationships were used to select variables for path analysis, which we used to gain insight into factors affecting stream condition by evaluating direct and indirect effects of human system variables, terrestrial landscape variables, and physical stream variables on stream invertebrates. Results indicated that in predominantly urban watersheds, contaminant inputs to streams (measured by streamwater conductivity) negatively affected invertebrates, including EPT taxa (Ephemeroptera, Plecoptera, Trichoptera), and streamwater contaminant concentrations increased with impervious surface and human population density in the watershed. In rural watersheds, high streamwater nitrogen concentrations associated with cultivated land were related to declines in invertebrate taxon richness. Independent of land use, invertebrate abundance and taxonomic diversity were positively related to coarse substrate abundance on the streambed. Additionally, stream flow (discharge) increased with watershed area, which in turn increased invertebrate taxonomic diversity. Apparently, mechanisms responsible for human impacts on stream condition in central Iowa depend on dominant land use in the watershed. Additionally, stream ecosystems with high quality benthic habitat, and those located in large watersheds with greater flow, appear to be more resilient to land use effects.     

Racially Charged Legislation and Latino Health Disparities: The Case of Arizona's S.B. 1070

Researchers have established that minority groups tend to suffer worse health outcomes compared to their white counterparts, though the specific mechanisms at play are still under investigation. The passing of Arizona's 2010 “Support Our Law Enforcement and Safe Neighborhoods Act,” commonly referred to as “S.B. 1070,” provides a unique opportunity to examine the effects of an increasingly racially charged milieu on Latino health. Using the Arizona sample of the 2009–2011 Behavioral Risk Factor Surveillance System, we find that the changing social setting around S.B. 1070 is related to poorer Latino self-reported health, but only for those whose primary language is Spanish. Furthermore, serving as control groups, we find no such relationship in other U.S.-Mexico border states that had no analogous legislation (Texas, New Mexico, and California). We expand on stress process theory and group position theory to explain this increase in Arizona's negative health reporting, despite traditional social and economic protective factors.     

The E.S.S.E. Group Model

Social work practitioners today are having to deal with ever-increasing numbers of families falling into the at risk category. At the same time, the issues and problems facing these family units are often overwhelming and challenging to resolve. The E.S.S.E. Group Model, outlined in this article, is a new research based approach that was designed to address the most relevant concerns facing families today. It is a unique program that combines family life education within a support group framework. Initially, the model was developed for several school districts in the midwest. Counseling personnel had identified a need for a parent training program that would elicit higher levels of participation. The E.S.S.E. Model accomplishes that goal through its structured yet individualized curriculum along with its parallel and conjoint group set-up. The specific content and process guidelines of this new approach make it easy for clinicians to duplicate in a wide variety of settings. One of the model's curriculums is outlined in detail in this article. Readers will find that the E.S.S.E. program serves as an excellent example of the type of group intervention needed today to help revitalize at-risk families.