Rhode Island College

This article describes a revised Conflict Tactics Scales (the CTS2) to measure psychological and physical attacks on a partner in a marital, cohabiting, or dating relationship; and also use of negotiation. The CTS2 has (a) additional items to enhance content validity and reliability; (b) revised wording to increase clarity and specificity; (c) better differentiation between minor and severe levels of each scale; (d) new scales to measure sexual coercion and physical injury; and (e) a new format to simplify administration and reduce response sets. Reliability ranges from .79 to .95. There is preliminary evidence of construct validity.

Relative quantities of DNA in individual nuclei of stem and leaf epidermal cells of Arabidopsis were measured microspectrofluorometrically using epidermal peels. The relative ploidy level in each nucleus was assessed by comparison to root tip mitotic nuclei. A clear pattern of regular endopolyploidy is evident in epidermal cells. Guard cell nuclei contain levels of DNA comparable to dividing root cells, the 2C level (i.e., one unreplicated copy of the nuclear DNA). Leaf trichome nuclei had elevated ploidy levels of 4C, 8C, 16C, 32C, and 64C, and their cytology suggested that the polyploidy represents a form of polyteny. The nuclei of epidermal pavement cells were 2C, 4C, and 8C in stem epidermis, and 2C, 4C, 8C, and 16C in leaf epidermis. Morphometry of epidermal pavement cells revealed a direct proportionality between nuclear DNA level and cell size. A consideration of the development process suggests that the cells of highest ploidy level are developmentally oldest; consequently, the developmental pattern of epidermal tissues can be read from the ploidy pattern of the cells. This observation is relevant to theories of stomate spacing and offers opportunities for genetic analysis of the endopolyploidy/polyteny phenomenon.

A study by a ITiCSE 2001 working group ("the McCracken Group") established that many students do not know how to program at the conclusion of their introductory courses. A popular explanation for this incapacity is that the students lack the ability to problem-solve. That is, they lack the ability to take a problem description, decompose it into sub-problems and implement them, then assemble the pieces into a complete solution. An alternative explanation is that many students have a fragile grasp of both basic programming principles and the ability to systematically carry out routine programming tasks, such as tracing (or "desk checking") through code. This ITiCSE 2004 working group studied the alternative explanation, by testing students from seven countries, in two ways. First, students were tested on their ability to predict the outcome of executing a short piece of code. Second, students were tested on their ability, when given the desired function of short piece of near-complete code, to select the correct completion of the code from a small set of possibilities. Many students were weak at these tasks, especially the latter task, suggesting that such students have a fragile grasp of skills that are a prerequisite for problem-solving.

Nursing research often requires inquiry into sensitive topics that involve hidden or hard- to reach populations. However, identifying and sampling these populations for research purposes is often fraught with difficulties. Barriers include society's lack of tolerance of diverse groups, social stigma, concern for issues of confidentiality, and fear of exposure because of possible threats to security. Chain referral sampling techniques are proposed to minimize bias while maintaining privacy and confidentiality. Techniques of chain referral sampling are detailed for use in researching sensitive topics and hidden populations. When carefully planned and executed, this sampling design offers transcultural nurse researchers a reasonable method for accessing and studying special populations that are particularly hard-to-reach.

In this study, we build on recent social disorganization research, estimating models of the relationships between disorder, burglary, cohesion, and fear of crime using a sample of neighborhoods from three waves of the British Crime Survey. The results indicate that disorder has an indirect effect on burglary through fear and neighborhood cohesion. Although cohesion reduces disorder, nonrecursive models show that disorder also reduces cohesion. Part of the effect of disorder on cohesion is mediated by fear. Similar results are obtained in nonrecursive burglary models. Together, the results suggest a feedback loop in which decreases in neighborhood cohesion increase crime and disorder, increasing fear, in turn, further decreasing cohesion.

The Politics of Home examines the changing representations of home in twentieth-century English literature. Examining imperial fiction, contemporary literary and cultural theory, and postcolonial narratives on belonging, exile and immigration, Rosemary Marangoly George argues that literary allegiances are always more complicated than expected and yet curiously visible in textual reformulations of home. She reads English women's narration of their success in the empire against Joseph Conrad's accounts of colonial masculine failure, R. K. Narayan alongside Frederic Jameson, contemporary Indian women writers as they recycle the rhetoric of the British Romantic poets, Edward Said next to M. G. Vassanji and Jamaica Kincaid, and Conrad through Naipaul and Ishiguro.

Blending strong narrative history and a fascinating look at the interface of business and technology, Computer: A History of the Information Machine traces the dramatic story of the invention of the computer. Earlier histories of the computer have depicted it as a tool both created by and to be used by scientists to solve their own number-crunching problems - as late as 1949 it was thought by some that the world would never need more than a dozen machines. This book suggests a richer story behind the computer's creation, one that shows how business and government were the first to explore the unlimited potential of the machine as an information processor. Not surprisingly, at the heart of the business story is the name IBM

Digital, online, and other electronic technology has transformed the nature of social work practice. Contemporary social workers can provide services to clients by using online counseling, telephone counseling, video counseling, cybertherapy (avatar therapy), self-guided Web-based interventions, electronic social networks, e-mail, and text messages. The introduction of diverse digital, online, and other forms of electronic social services has created a wide range of complex ethical and related risk management issues. This article provides an overview of current digital, online, and electronic social work services; identifies compelling ethical issues related to practitioner competence, client privacy and confidentiality, informed consent, conflicts of interest, boundaries and dual relationships, consultation and client referral, termination and interruption of services, documentation, and research evidence; and offers practical risk management strategies designed to protect clients and social workers. The author identifies relevant standards from the NASW Code of Ethics and other resources designed to guide practice.

Two hundred and seventy five randomly selected social workers who were practicing in Massachusetts in 1988 were studied to better understand burnout and job satisfaction. The findings from hierarchical multiple regressions revealed that perceived lack of autonomy and the influence of the funding sources are major contributors to burnout, and perceived autonomy and bureaucratization are major contributors to job satisfaction. The findings challenge the assumption that bureaucracy is the most efficient form of organization and question the ideological and social control functions of organizations. A focus on the effects of the organizational structure as it contributes to burnout and job satisfaction is suggested for policy, practice, and professional decisions.

Children of Latino immigrants, many of whom live in “mixed-status” families, are a rapidly growing group in the United States. It is widely accepted that their development is affected by multiple and complex factors, including those in their distal context (e.g., laws, institutions, policies). Despite the enormity of the deportation system and its vigorous implementation in recent years, little research has investigated how this particular component of the distal context affects Latino immigrant families. The present survey was designed to statistically explore the impact of detention/deportation on Latino immigrant parents and children ( N = 132). Regression analyses indicated that (1) parents with higher levels of legal vulnerability report a greater impact of detention/ deportation on the family environment (parent emotional well-being, ability to provide financially, and relationships with their children) and children’s well-being (child’s emotional well-being and academic performance) and (2) parents’ legal vulnerability and the impact of detention/deportation on the family predict outcomes for children. Implications for practice and policy are discussed.

Nuclear and mitochondrial genomes are under continuous assault by a combination of environmentally and endogenously derived reactive oxygen species, inducing the formation and accumulation of mutagenic, toxic, and/or genome-destabilizing DNA lesions. Failure to resolve these lesions through one or more DNA-repair processes is associated with genome instability, mitochondrial dysfunction, neurodegeneration, inflammation, aging, and cancer, emphasizing the importance of characterizing the pathways and proteins involved in the repair of oxidative DNA damage. This review focuses on the repair of oxidative damage-induced lesions in nuclear and mitochondrial DNA mediated by the base excision repair (BER) pathway in mammalian cells. We discuss the multiple BER subpathways that are initiated by one of 11 different DNA glycosylases of three subtypes: (a) bifunctional with an associated β-lyase activity; (b) monofunctional; and (c) bifunctional with an associated β,δ-lyase activity. These three subtypes of DNA glycosylases all initiate BER but yield different chemical intermediates and hence different BER complexes to complete repair. Additionally, we briefly summarize alternate repair events mediated by BER proteins and the role of BER in the repair of mitochondrial DNA damage induced by ROS. Finally, we discuss the relation of BER and oxidative DNA damage in the onset of human disease.

An attitude scale was constructed using the method of summated ratings. The scale was used to investigate the effect of selected institutional variables on the attitude of the regular-classroom teacher toward mainstreaming special-needs children. The scale was administered to a sample of nearly 1,000 public school teachers in the 6 New England states. A stepwise multiple regression analysis was used to investigate the effect of the institutional variables on teacher's attitude toward mainstreaming. Results of the analyses indicated that of the 7 variables considered, the regular-classroom teacher's perception of degree of success in dealing with special-needs students had the most significant relationship to teacher attitude.

Consensus refers to the extent to which judges agree in their ratings of a common target. Consensus has been an important area of research in social and personality psychology. In this article, generalizability theory is used to develop a percentage of total variance measure of consensus. This measure is used to review the level of consensus across 32 studies by considering the role of acquaintance level and trait dimension. The review indicates that consensus correlations ranged from zero to about .3, with higher levels of consensus for ratings of Extraversion. The studies do not provide evidence that consensus increases with increasing acquaintance, a counterintuitive result that can be accounted for by a theoretical model (D.A. Kenny, 1991, in press). Problems in the interpretation of longitudinal research are reviewed.

The Park City Math Institute 2016 Summer Undergraduate Faculty Program met for the purpose of composing guidelines for undergraduate programs in data science. The group consisted of 25 undergraduate faculty from a variety of institutions in the United States, primarily from the disciplines of mathematics, statistics, and computer science. These guidelines are meant to provide some structure for institutions planning for or revising a major in data science.

The science of learning has made a considerable contribution to our understanding of effective teaching and learning strategies. However, few instructors outside of the field are privy to this research. In this tutorial review, we focus on six specific cognitive strategies that have received robust support from decades of research: spaced practice, interleaving, retrieval practice, elaboration, concrete examples, and dual coding. We describe the basic research behind each strategy and relevant applied research, present examples of existing and suggested implementation, and make recommendations for further research that would broaden the reach of these strategies.

Professional learning communities have become one of the most talked about ideas in education today. Many K-12 schools are working to become professional learning communities in the hope that student learning will improve when adults commit themselves to talking collaboratively about teaching and learning and then take action that will improve student learning and achievement. The researchers in this study believe that a school must understand and practice the five disciplines of a learning organization to be a true professional learning community and that leadership plays a significant role in the ability of a school to become a professional learning community that enhances student learning. The questions explored in this study of six middle schools, three urban and three suburban, were: 1) What does a professional learning community look like in a middle school? 2) What kind of principal creates a professional learning community in his/her school? 3) What are the beliefs and dispositions of such a leader? 4) Do teachers perceive their school to be a professional learning community? and, 5) Is there a relationship between professional learning communities, leadership, and student learning?

Summary Plant functional traits, in particular specific leaf area ( SLA ), wood density and seed mass, are often good predictors of individual tree growth rates within communities. Individuals and species with high SLA , low wood density and small seeds tend to have faster growth rates. If community‐level relationships between traits and growth have general predictive value, then similar relationships should also be observed in analyses that integrate across taxa, biogeographic regions and environments. Such global consistency would imply that traits could serve as valuable proxies for the complex suite of factors that determine growth rate, and, therefore, could underpin a new generation of robust dynamic vegetation models. Alternatively, growth rates may depend more strongly on the local environment or growth–trait relationships may vary along environmental gradients. We tested these alternative hypotheses using data on 27 352 juvenile trees, representing 278 species from 27 sites on all forested continents, and extensive functional trait data, 38% of which were obtained at the same sites at which growth was assessed. Data on potential evapotranspiration ( PET ), which summarizes the joint ecological effects of temperature and precipitation, were obtained from a global data base. We estimated size‐standardized relative height growth rates ( SGR ) for all species, then related them to functional traits and PET using mixed‐effect models for the fastest growing species and for all species together. Both the mean and 95th percentile SGR were more strongly associated with functional traits than with PET . PET was unrelated to SGR at the global scale. SGR increased with increasing SLA and decreased with increasing wood density and seed mass, but these traits explained only 3.1% of the variation in SGR . SGR –trait relationships were consistently weak across families and biogeographic zones, and over a range of tree statures. Thus, the most widely studied functional traits in plant ecology were poor predictors of tree growth over large scales. Synthesis . We conclude that these functional traits alone may be unsuitable for predicting growth of trees over broad scales. Determining the functional traits that predict vital rates under specific environmental conditions may generate more insight than a monolithic global relationship can offer.

A six-lobed membrane spanning cellulose synthesis complex (CSC) containing multiple cellulose synthase (CESA) glycosyltransferases mediates cellulose microfibril formation. The number of CESAs in the CSC has been debated for decades in light of changing estimates of the diameter of the smallest microfibril formed from the β-1,4 glucan chains synthesized by one CSC. We obtained more direct evidence through generating improved transmission electron microscopy (TEM) images and image averages of the rosette-type CSC, revealing the frequent triangularity and average cross-sectional area in the plasma membrane of its individual lobes. Trimeric oligomers of two alternative CESA computational models corresponded well with individual lobe geometry. A six-fold assembly of the trimeric computational oligomer had the lowest potential energy per monomer and was consistent with rosette CSC morphology. Negative stain TEM and image averaging showed the triangularity of a recombinant CESA cytosolic domain, consistent with previous modeling of its trimeric nature from small angle scattering (SAXS) data. Six trimeric SAXS models nearly filled the space below an average FF-TEM image of the rosette CSC. In summary, the multifaceted data support a rosette CSC with 18 CESAs that mediates the synthesis of a fundamental microfibril composed of 18 glucan chains.

The recent ratification of a new NASW Code of Ethics—the most ambitious set of ethical guidelines in social work's history—marks an important stage in the profession's development. This article traces the evolution of ethical norms, principles, and standards in social work during four stages in the profession's history: (1) the morality period, (2) the values period, (3) the ethical theory and decision-making period, and (4) the ethical standards and risk management period. In the past 100 years, social work has moved from a preoccupation with clients' morality and values to the formulation of comprehensive ethical guidelines for practice. In recent years social work has also developed rich conceptual frameworks and practical resources to help practitioners identify, assess, and address complex ethical issues. Implications of these developments for the profession are explored, particularly in light of social work's commemoration of its 100th anniversary.

BACKGROUND: The objective of this study was to examine the association between education and incidence of accelerated cognitive decline. METHODS: Secondary analyses of data from the Health and Retirement Study (HRS), a nationally representative prospective cohort study of U.S. residents were conducted (N = 28,417). Cox proportional hazards survival models were layered on longitudinal mixed-effects modeling to jointly examine healthy cognitive aging and incidence of accelerated cognitive decline consistent with patterns seen in preclinical Alzheimer's disease and related dementias (ADRD). Replication analyses were completed on a database including 62,485 additional respondents from HRS sister studies. Life expectancy ratios (LER) and 95% confidence intervals (CIs) were reported. RESULTS: This study replicated research showing that education was positively associated with cognition at baseline. Model fit improved using the survival method compared to random-slopes models alone. Analyses of HRS data revealed that higher education was associated with delayed onset of accelerated cognitive decline (LER = 1.031 95% CI = [1.013-1.015], p < 1E-06). Replication analyses using data from 14 countries identified similar results. CONCLUSIONS: These results are consistent with cognitive reserve theory, suggesting that education reduces risk of ADRD-pattern cognitive decline. Follow-up work should seek to differentiate specific dementia types involved and consider potential mechanisms.