Anti-Queer Microaggressions Towards Queer Black Men

Microaggressions are reoccurring derogatory messages that degrade and/ or discredit one’s identity. While invisible and unknown to many, they remain visible and apparent to those impacted by them. The research questions for this project are: (1) What microaggressions do Queer Black men experience within larger society? (2) To contrast with larger society, what microaggressions do Queer Black men experience within Black communities? By conducting focus groups, I will examine the intersectional microaggressions that Queer Black males experience in their own community, as well as document microaggression that they experience in larger society. After conducting my focus groups, I will be adopting Derald Wing Sue’s taxonomy of microaggression themes to translate the underlying messages behind delivered microaggressions. The results in this study will aide in addressing an appeared gap within microaggression literature by, documenting how Queer Black males experience these muted, normalized insults and invalidations in societ

New insights into the biomechanics of Legg-Calvé-Perthes’ disease: The role of epiphyseal skeletal immaturity in vascular obstruction

ObjectivesLegg–Calvé–Perthes’ disease (LCP) is an idiopathic osteonecrosis of the femoral head that is most common in children between four and eight years old. The factors that lead to the onset of LCP are still unclear; however, it is believed that interruption of the blood supply to the developing epiphysis is an important factor in the development of the condition.MethodsFinite element analysis modelling of the blood supply to the juvenile epiphysis was investigated to understand under which circumstances the blood vessels supplying the femoral epiphysis could become obstructed. The identification of these conditions is likely to be important in understanding the biomechanics of LCP.ResultsThe results support the hypothesis that vascular obstruction to the epiphysis may arise when there is delayed ossification and when articular cartilage has reduced stiffness under compression.ConclusionThe findings support the theory of vascular occlusion as being important in the pathophysiology of Perthes disease

Peltier Effect in Single Crystals of Bismuth

Some preliminary data on the Peltier Effect in bismuth single crystals have been obtained. The reference metal used is copper. The results so far obtained seem to be in fair agreement with the data computed from the thermal e.m.f. measurements of Boydston and Bridgman

A General Formulation for Least-Squares Problems

Abstract — We show in this paper that many different least-squares problems which have applications in signal processing may be seen as special cases of a more general vector space minimization problem called the Minimum Norm problem. We show that special cases of the Minimum Norm problem include: least squares fitting of a finite set of points to a linear equation and to a quadratic equation; the infinite length MMSE-optimum linear equalizer; the finite length MMSE-optimum linear equalizer; the steepest descent algorithm and the more practical LMS algorithm for iterative estimation of the finite-length MMSE-optimum linear equalizer for an unknown channel; and the finite-length least-squares-optimum linear equalizer with a forgetting factor. These examples are not exhaustive but are chosen to illustrate the scope of this framework

Silicon and III-V compound nanotubes: structural and electronic properties

Unusual physical properties of single-wall carbon nanotubes have started a search for similar tubular structures of other elements. In this paper, we present a theoretical analysis of single-wall nanotubes of silicon and group III-V compounds. Starting from precursor graphene-like structures we investigated the stability, energetics and electronic structure of zigzag and armchair tubes using first-principles pseudopotential plane wave method and finite temperature ab-initio molecular dynamics calculations. We showed that (n,0) zigzag and (n,n) armchair nanotubes of silicon having n > 6 are stable but those with n < 6 can be stabilized by internal or external adsorption of transition metal elements. Some of these tubes have magnetic ground state leading to spintronic properties. We also examined the stability of nanotubes under radial and axial deformation. Owing to the weakness of radial restoring force, stable Si nanotubes are radially soft. Undeformed zigzag nanotubes are found to be metallic for 6 < n < 11 due to curvature effect; but a gap starts to open for n > 12. Furthermore, we identified stable tubular structures formed by stacking of Si polygons. We found AlP, GaAs, and GaN (8,0) single-wall nanotubes stable and semiconducting. Our results are compared with those of single-wall carbon nanotubes.Comment: 11 pages, 10 figure

A concept analysis of undergraduate nursing students speaking up for patient safety in the patient care environment

© 2016 John Wiley & Sons Ltd. AIM: An analysis of the concept of nursing students speaking up for patient safety in the workplace.BACKGROUND: 'Speaking up' is assertive communication in clinical situations that requires action through questions or statements of opinion or information with appropriate persistence and is linked to patient safety. Previously, the concept of speaking up has focused on the registered or experienced practitioners, there is minimal discussion relating to student nurses. Analysis of the elements of students speaking up will identify the key elements that will give understanding to their position and experiences.DESIGN: A concept analysis.DATA: Literature included publications between 1970-2015 from, MEDLINE, CINHAL, PUBMED and SCOPUS. Search terms included patient safety AND speaking up; AND pre-registration/undergraduate nursing students, patient advocate, error reporting, organizational silence, whistleblowing and clinical placement/practicum.METHODS: The Walker and Avant concept analysis model was modified and used to examine the literature.RESULTS: Nursing students speaking up behaviour is influenced by individual and contextual factors that differ from those influencing more experienced colleagues. Motivators and barriers to voicing concerns include moral and ethical beliefs, willingness and confidence to speak up in the workplace. Students' subordinate and often vulnerable position creates additional tensions and challenges that impact their decisions and actions.CONCLUSION: This concept analysis provides a clear definition of 'speaking up' in relation to nursing students. The analysis will facilitate understanding and operationalization of the concept applied to learning and teaching, practice and research

The Preventive Effects of Arrest on Intimate Partner Violence: Research, Policy and Theory

This research addresses the limitations of prior analyses and reviews of five experiments testing for the specific deterrent effect of arrest on intimate partner violence by applying to individual level data consistent eligibility criteria, common independent and outcome measures, and appropriate statistical tests. Based on 4,032 cases involving adult males who assaulted their female intimate partners, multivariate regression analyses show consistent but modest reductions in subsequent offenses targeting the original victim that is attributable to arresting the suspect. Although the reductions attributable to arrest are similar across all five studies, other factors, such as the suspect\u27s prior arrest record, are stronger predictors of subsequent offenses. The effect of arrest is also modest compared with the general decline in offenses toward the same victim during the follow-up period