Potential nitrogen mineralization responses of urban and rural forest soils to elevated temperature in Louisville,KY

Soil nitrogen (N) mineralization is an important process determining terrestrial N availability, and evidence suggests elevated temperatures will enhance N mineralization rates. Along a 40 km urban-rural gradient of chestnut oak forest stands in Louisville, KY, we expected N mineralization rates would be higher in urban than in rural forests in part due to increased temperatures caused by the urban heat island. However, a 12-month field study along this Louisville gradient showed that annual N mineralization rates were lower in urban than in rural stands. Since variation in precipitation inputs and other factors across this land-use gradient may be influencing soil N mineralization rates, we conducted a three-month soil incubation experiment in the lab to determine the extent to which a + 2 °C temperature difference could affect soil N mineralization in urban and rural soils. Across the range of temperatures tested, rural soils mineralized N at twice the rate of urban soils under base (7.86 vs. 3.65 mg N kg^?1 AFDW soil d^?1) and elevated (9.08 vs. 4.76 mg N kg^?1 AFDW soil d^?1) temperatures (p < 0.01). A 2 °C temperature difference, did not significantly alter total inorganic N production in urban (p = 0.272) or rural soils (p = 0.293). The proportion of nitrate produced was lower in the urban (15.1 %) than in the rural soils (72.3 %; p < 0.01). These results suggest that differences in soil organic matter quality and potentially decomposer community composition are the primary explanatory factors for forests along this Louisville gradient.     

An empirical assessment of writing and research proficiency in HBCU social work students

ABSTRACT

Lack of proficiency in writing and research among social work students has increasingly concerned social work educators and practitioners. Given the significance of written communication with clients and emphasis on evidence-based practice in the field of social work, it is critical to assess students’ competence in both writing and research. However, deficit-based approaches to assessing writing and research competence have disadvantaged students at historically black colleges and universities (HBCUs). This pilot study aims to assess writing and research proficiency of HBCU master’s of social work (MSW) students through empirical analysis of their capstone papers and surveys from educators to provide implications for developing a writing and research manual for social work programs at HBCUs. Ten capstone papers were randomly selected and qualitatively analyzed; nine faculty and one field supervisor completed the survey, and their respondents were analyzed using cross-case analysis. Analyses of the capstone papers identified two themes for writing and research domains, respectively: (1) weakness in developing statements and lack of knowledge of writing style and (2) plagiarism and lack of understanding of research structure. Moreover, analyses of the surveys revealed four themes regarding assessment of writing and research skills among students struggling with basic writing mechanics, indicating that HBCU MSW students may have potential and capacity for learning, as evidenced by their ideas and critical thinking skills. These findings suggest both teaching- and research-oriented programs could employ the proposed writing and research assessment manual, as well as a writing and research lab/center for improving writing and research skills among their students.     

Looking at intra-European mobilities through migrant types: young Spanish and Polish migrants in London and The Hague

This paper echoes the need to further explore the social effects of European Union integration by examining the increasingly complex and diverse scenario of intra-European mobility. Much research has focused on the intensification of East-to-West migrant flows after the enlargements of 2004 and 2007, inspiring a rich conceptualization of migrant typologies. Theoretically, this paper argues that some of these typologies can be extrapolated to better understand the experiences of other European movers. Empirically, it offers a qualitative and comparative analysis of diverse European young adults’ experiences of mobility: 8 Polish citizens in The Hague and 10 Spaniards in London. The analysis is based on four main dimensions derived from the literature: (1) Motivations to migrate, (2) Labour market participation, (3) Attachments and transnational ties and (4) Family composition and future outlooks. Results map individual differences and similarities contextualized by generational, gendered, educational and socio-economic aspects.     

The British Asian Muslim male sport participation puzzle: an exploration of implications for sport development policy and practice

The purpose of this study is to explore intersections between religion, faith and social identity with regards to their impact on either promoting or preventing sport participation amongst self-identified British Asian Muslim males living in Birmingham (West Midlands of the UK) aged 16–25 years old. The research questions around this topic of study are to explore how interpretations of Islamic faith promote or prevent sport participation amongst young Muslim males. Secondly, the paper will examine the perspectives of Muslim male participants in relation to sport to identify factors determining sport participation. Finally, the study will consider implications for policy and practice in sport development. The study drew upon seven in-depth, semi-structured interviews with Muslim males aged 16–25 years old and applied a thematic analysis and coding methodology to unpick the key dimensions and findings from the data. Findings from the study indicate the complexity of young Muslim male sport participation contexts, dynamics in decision-making, family influence and perceptions held about other communities and their own. The study draws out key implications for agencies in sport development that seek to encourage sport participation cutting across school, community, local government and national governing body partnerships specifically considering Islamic faith communities.     

Aging and sexual health: getting to the problem

Erectile dysfunction (ED) is one of the most common disorders in male and is often associated with other age-related comorbidities. The aging process affects the structural organization and function of penile erectile components such as smooth muscle cell and vascular architecture. These modifications affect penile hemodynamics by impairing cavernosal smooth muscle cell relaxation, reducing penile elasticity, compliance and promoting fibrosis. This review aims to identify the mechanisms of ED in the penile aging process in experimental and clinical data. It also highlights areas that are in need of more research. The search strategies yielded total records screened from PubMed. Clarification of the molecular mechanisms that accompanies corpus cavernosum aging and aging-associated ED will aid new perspectives in the development of novel mechanism-based therapeutic approaches. Age is not a limiting factor for ED medical management, and it is never too late to treat. Hypogonadism should be managed regardless of age, and synergistic effects have been found during testosterone (T) replacement therapy when used along with oral phosphodiesterase-5 (PDE-5) inhibitors. Therefore, the clinical management of ED related to aging can be done by therapeutic interventions that include PDE-5 inhibitors, and other pharmacological treatments.     

The “what” and “who” of co-optation: gendered racialized migrations,settler nation-states and postcolonial difference

In this article, I focus on the management of postcolonial difference and the production of belonging in a white settler nation-state in order to rethink the notion of co-optation. I first develop a theoretical framework for understanding co-optation by separating the “who” and the “what” of co-optation: actors who embody diversity in public, political debate become the “who” of co-optation, as their agency is shaped by gendered and racialized processes of subject making. The “what” of co-optation revolves around particular conceptualizations of practices, rights and freedoms, associated in this case with “gender equality,” which is rendered an empty signifier in the process. I then illustrate this framework by drawing from research on the Sharia-based arbitration debate that took place in Ontario, Canada, between late 2003 and early 2006. I focus on the claims of two Canadian Muslim women activists to show that co-optation occurs as attempts to further liberation instead advance illiberal practices.     

Attention to Threat as a Predictor of Shyness in the Context of Internalizing and Externalizing Behavior

The duration of children's attention to putative threat has been documented as a consistent predictor of later anxiety in inhibited children across childhood (Fox, New Directions for Child and Adolescent Development, 127, 2010, 33; Pérez‐Edgar & Fox, Child and Adolescent Psychiatric Clinics of North America, 14, 2005, 681). However, attention to threat has not been broadly examined within existing behavioral contexts and has seldom been studied in very early childhood. Whereas toddlers with high levels of internalizing behavior may view fear‐inducing stimuli as a threat, toddlers with high levels of externalizing behavior may demonstrate attention out of interest or sensation seeking. Thus, attention to threat was expected to predict increased toddler shyness in the context of either high internalizing problems or low externalizing behavior. We examined 117 twenty‐four‐month‐old toddlers to determine whether attention to threat interacted with internalizing and externalizing behavior at 24 months of age to predict toddler shyness one year later. Results indicated that attention to threat predicted toddlers' lower shyness at 36 months when toddlers’ externalizing behavior at age 24 months were high, but there was no significant interaction between toddlers’ internalizing behavior and their attention to threat in predicting later shyness. These results expand our understanding of the contexts in which attention to threat in early childhood is a viable predictor of later shyness.     

Violating Boundaries

This essay begins by questioning the role that the word “boundary” plays when we say that a “sexual boundary violation” has occurred in an analytic treatment. Boundaries are bright lines drawn to separate lawful from unlawful, consensual from coerced, free from exploited, ownership from trespass, fantasy from reality. But the notion of boundaries fails in a profound and fateful way to capture the inescapable circulation of erotic transference and countertransference feelings in an analysis. Instead, this essay proposes that we look to the notion of sublimation for insights into the psychic dynamics of sexual behavior between analyst and analysand. It explores the ambivalence and mourning that surround the sublimation of desire. This discussion of sublimation sheds light on sexual violations in other types of professional relationships as well as recently adopted affirmative consent laws and policies on college campuses.     

Cambodian Refugee Families: Impacts of Immigration-Related Stressors on Intergenerational Relationships

The purpose of this study was to elucidate Cambodian refugees’ perceptions of immigration-related stressors and their impacts on intergenerational relations during the processes of immigration and settlement. We used narrative analysis to evoke older immigrants’ voices as they transitioned to the United States. Thirty-one Cambodian immigrants were interviewed using open-ended interview guides informed by ethnographic tenets of data collection. Participants expressed (a) changes in family structure and elder isolation and (b) intergenerational ambivalence and elder’s dependence on adult children as products of immigration-related stressors. Implications of these results for refugee and immigrant mental health research are discussed.