A Framework of Academic Persistence and Success for Ethnically Diverse Graduate Nursing Students

The goal of this qualitative study was to examine how ethnically diverse graduate nursing students persisted with academic studies. Ethnically diverse nurses are vastly underrepresented in the workforce. This problem is accentuated by high attrition rates in academic programs. A grounded theory approach was used. Five focus groups were conducted with 16 ethnically diverse graduate students in nursing and interviews were conducted with two diversity advisers. Analysis of the data indicated that the process of learning to balance stressors with moderators was key to academic persistence and retention. A conceptual framework emerged from the data that provides a guide for academic institutions seeking to implement strategies to promote retention and graduation of diverse graduate nursing students. Recommendations are offered to address faculty development, administrative action, and student resources. Aim. The goal of this qualitative study was to examine how ethnically diverse graduate nursing students persisted with academic studies. Background. Ethnically diverse nurses are vastly underrepresented in the workforce. This problem is accentuated by high attrition rates in academic programs. Method. A grounded theory approach was used. Five focus groups were conducted with 16 ethnically diverse graduate students in nursing and interviews were conducted with two diversity advisers. Results. Analysis of the data indicated that the process of learning to balance stressors with moderators was key to academic persistence and retention. A conceptual framework emerged from the data that provides a guide for academic institutions seeking to implement strategies to promote retention and graduation of diverse graduate nursing students. Conclusion. Recommendations are offered to address faculty development, administrative action, and student resources

Enhancement of the Critical Current Density of YBa2Cu3Ox Superconductors under Hydrostatic Pressure

The dependence of the critical current density Jc on hydrostatic pressure to 0.6 GPa is determined for a single 25-degree [001]-tilt grain boundary in a bicrystalline ring of nearly optimally doped melt-textured YBa2Cu3Ox. Jc is found to increase rapidly under pressure at +20 %/GPa. A new diagnostic method is introduced (pressure-induced Jc relaxation) which reveals a sizeable concentration of vacant oxygen sites in the grain boundary region. Completely filling such sites with oxygen anions should lead to significant enhancements in Jc.Comment: revised manuscript, graphic errors in figures correcte

Reflectance - Current state of research and future directions for archaeological charcoal; Results from a pilot study on Irish Bronze Age cremation charcoals

‘Reflectance’ is a method that estimates the absolute burn temperature of charcoal from the ‘shininess’ of resin mounted samples. The method's usefulness for archaeological charcoal is yet to be comprehensively studied. This article details first results from reflectance testing of archaeological charcoals excavated from Irish Bronze Age cremations, which included calcined bone. As calcination of bone commences at 650 °C, it was expected that the charcoals would reflect at least this temperature. This was not the case for taxonomically identified charcoals >2 mm, nor for micro-charcoals of c. 250 μm, although measured temperatures rose slightly with decreasing fraction size of charcoal remains. Depositional practice, combustion completeness and taphonomic influences may have all played a part in this result, and these will need careful consideration in different archaeological circumstances. However, the greatest challenge for reflectance of archaeological materials lies in obtaining full agreement on the production and use of reflectance calibration curves. Current calibration curves differ substantially, by 100–150 °C (±50–75 °C) and in one instance up to as much as 180 °C (±90 °C). Without better agreement on calibration, the method's ultimate usefulness in archaeological research will be limited. At the level of refinement currently possible, it will still be useful for determining very high or very low temperature processes, and possibly the difference between charcoal fuel and raw wood fuel fires. The latter has distinct implications for estimating ancient forest wood consumption, since more wood is consumed in processes employing charcoal fuel. Proving the utility of reflectance for archaeological purposes may also require modification of normal practice for archaeological field collection of charcoal, to include collection and laboratory processing of un-sieved soil samples.The authors acknowledge the support of the CSIRO, Sydney; the Department of Archaeology, and the Australian Centre for Microscopy and Microanalysis, University of Sydney (especially materials preparation specialist, Mr Adam Sikorski); and the McDonald Institute for Archaeological Research, University of Cambridge. Excavations were carried out by Margaret Gowen & Co. Ltd, funded by the National Roads Authority, Ireland. This research was partly funded by the Government of Ireland, Irish Research Council (Project id GOIPD/2013/387) supported by the School of Archaeology, University College Dublin

Origin of the n-type conductivity of InN: the role of positively charged dislocations

As-grown InN is known to exhibit high unintentional n-type conductivity. Hall measurements from a range of high-quality single-crystalline epitaxially grown InN films reveal a dramatic reduction in the electron density (from low 1019 to low 1017 cm–3) with increasing film thickness (from 50 to 12 000 nm). The combination of background donors from impurities and the extreme electron accumulation at InN surfaces is shown to be insufficient to reproduce the measured film thickness dependence of the free-electron density. When positively charged nitrogen vacancies (VN+) along dislocations are also included, agreement is obtained between the calculated and experimental thickness dependence of the free-electron concentration

Core-level photoemission spectroscopy of nitrogen bonding in GaNxAs1–x alloys

The nitrogen bonding configurations in GaNxAs1–x alloys grown by molecular beam epitaxy with 0.07=0.03, the nitrogen is found to exist in a single bonding configuration – the Ga–N bond; no interstitial nitrogen complexes are present. The amount of nitrogen in the alloys is estimated from the XPS using the N 1s photoelectron and Ga LMM Auger lines and is found to be in agreement with the composition determined by x-ray diffraction

Transition from electron accumulation to depletion at InGaN surfaces

The composition dependence of the Fermi-level pinning at the oxidized (0001) surfaces of n-type InxGa1−xN films (0<=x<=1) is investigated using x-ray photoemission spectroscopy. The surface Fermi-level position varies from high above the conduction band minimum (CBM) at InN surfaces to significantly below the CBM at GaN surfaces, with the transition from electron accumulation to depletion occurring at approximately x=0.3. The results are consistent with the composition dependence of the band edges with respect to the charge neutrality level

Pension Accounting And Reporting With Other Comprehensive Income And Deferred Taxes: A Worksheet Approach

This instructional tool presents pension accounting using a worksheet approach where debits equal credits for both the employer and for the plan. Transactions associated with the initiation of the plan through the end of the second year of the plan are presented, including their impact on accumulated other comprehensive income and deferred taxes. This article is intended as a supplemental teaching tool that demonstrates the impact of a plan’s funded status on the employer’s financial statements in a way that, based upon anecdotal evidence, accounting students and practitioners have found extremely beneficial beyond traditional accounting textbooks

Surface electronic properties of undoped InAlN alloys

The variation in surface electronic properties of undoped c-plane InxAl1−xN alloys has been investigated across the composition range using a combination of high-resolution x-ray photoemission spectroscopy and single-field Hall effect measurements. For the In-rich alloys, electron accumulation layers, accompanied by a downward band bending, are present at the surface, with a decrease to approximately flatband conditions with increasing Al composition. However, for the Al-rich alloys, the undoped samples were found to be insulating with approximate midgap pinning of the surface Fermi level observed