1,160 research outputs found
Comparison of acoustic data from a 102 mm conic nozzle as measured in the RAE 24-foot wind tunnel and the NASA Ames 40- by 80-foot wind tunnel
A cooperative program between the Royal Aircraft Establishment (RAE), England, and the NASA Ames Research Center was initiated to compare acoustic measurements made in the RAE 24-foot wind tunnel and in the Ames 40- by 80-foot wind tunnel. The acoustic measurements were made in both facilities using the same 102 mm conical nozzle supplied by the RAE. The nozzle was tested by each organization using its respective jet test rig. The mounting hardware and nozzle exit conditions were matched as closely as possible. The data from each wind tunnel were independently analyzed by the respective organization. The results from these tests show good agreement. In both facilities, interference with acoustic measurement is evident at angles in the forward quadrant
The potential of literature and poetry.
Literature and poetry are being increasingly used as learning resources in professional health care educational curricula (McKie & Gass 2001; Tschudin, 2003; McAteer & Murray, 2003; McKie et al 2008). Less attention has, however, been given to specific ways in which engagement with these resources might enhance health care professionals understanding of the experience of service users, carers and of their own practice with a view to improving health and social care practice. In this chapter, we argue that literature and poetry have the potential to deepen professional understanding by literary devices such as metaphor articulating, effectively, some of the most complex, elusive and subtle aspects of human experiences. Literature and poetry have the potential to enable professionals to develop ethical perception and imagination. The close attention that can be developed from reading poetry and literature is, arguably, transferable to practice contexts. Professionals can develop the ability to see more clearly the salient aspects of a practice situation. This is a precursor to ethical and professional practice. Poetry and literature are not the only resources that can be used to develop ethical perception or ethical practice. Insights from qualitative research and the visual arts are also valuable for enhancing ethical perception and ethical practice. We begin with a general discussion of the relationship between the arts and health and social care offering some critique as well as a discussion of the benefits of the arts. We then discuss, more specifically, the potential of poetry and literature and consider claims that they enhance ethical perception. Metaphor is a common literary device and we consider its potential in relation to the experience of illness, distress and caring. In later sections we provide examples of literature and poetry in relation to the experience of: service users, carers and professionals. We discuss practical ways in which the educationalist might adopt this approach in helping students and others to better understand and respond to the views and experiences of service users, carers and other professionals in different therapeutic and caring contexts
A novel tissue inhibitor of metalloproteinases-3 mutation reveals a common molecular phenotype in sorsby's fundus dystrophy
Sorsby’s fundus dystrophy (SFD) is a dominantly inherited
degenerative disease of the retina that leads to
loss of vision in middle age. It has been shown to be
caused by mutations in the gene for tissue inhibitor of
metalloproteinases-3 (TIMP-3). Five different mutations
have previously been identified, all introducing an extra
cysteine residue into exon 5 (which forms part of the
C-terminal domain) of the TIMP-3 molecule; however,
the significance of these mutations to the disease phenotype
was unknown. In this report, we describe the
expression of several of these mutated genes, together
with a previously unreported novel TIMP-3 mutation
from a family with SFD that results in truncation of
most of the C-terminal domain of the molecule. Despite
these differences, all of these molecules are expressed
and exhibit characteristics of the normal protein, including
inhibition of metalloproteinases and binding to
the extracellular matrix. However, unlike wild-type
TIMP-3, they all form dimers. These observations, together
with the recent finding that expression of TIMP-3
is increased, rather than decreased, in eyes from patients
with SFD, provides compelling evidence that
dimerized TIMP-3 plays an active role in the disease
process by accumulating in the eye. Increased expression
of TIMP-3 is also observed in other degenerative
retinal diseases, including the more severe forms of agerelated
macular degeneration, the most common cause
of blindness in the elderly in developed countries. We
hypothesize that overexpression of TIMP-3 may prove to
be a critical step in the progression of a variety of degenerative
retinopathies
Prostate cancer prehabilitation and the importance of multimodal interventions for person-centred care and recovery.
Background: Prostate cancer is the second most commonly diagnosed cancer globally. Cancer prehabilitation is defined as a process on the continuum of care that occurs between the time of a cancer diagnosis and the beginning of acute treatment. This article will discuss the importance of prostate cancer prehabilitation interventions in optimising physical and psychological recovery to enhance person-centred care. Data Sources: Electronic databases including CINAHL, MEDLINE, PsychINFO, Scopus, professional websites, and grey literature were searched using Google Scholar. Conclusion: Prehabilitation in cancer care aims to enhance perioperative care and recovery. An emerging field of research suggests that the preoperative period may be physically and psychologically salient to introduce modifiable self-management behaviours to optimise overall recovery. Implications for Nursing Practice: Prostate cancer specialist nurses provide the hub of person-centred care across the entire cancer care continuum embedded within the multidisciplinary team. Individually tailored interventions such as exercise and pelvic floor muscle training programmes, nutritional advice, anxiety and depression reduction, and sexual well-being interventions should be considered in the prehabilitation phase of the cancer care continuum
A Qualitative Case Study to Explore the Intern as Teacher Model in South Georgia
There is a teacher shortage in South Georgia school districts inhibiting the hiring of teachers for many subject areas. School districts are partnering with universities to identify teacher candidates who can serve as the teacher of record in their districts during their final semester or year of teacher preparation through the intern as teacher model. The purpose of this study was to explore what constitutes success in the intern as teacher model for interns participating in a paid internship during their final semester of undergraduate education through a complex adaptive systems theoretical framework.
Research has not been conducted on the intern as teacher model in Georgia although there was an abundance of research on alternative preparation models and residency programs. Addressing the gap in literature to consider mentoring models through the complex adaptive system (CAS) lens (Janssen, van Vuuren, & de Jong, 2016; Jones & Corner, 2012), this study employed a case study approach bounded by South Georgia school districts using the intern as teacher model. Participants included three interns and three mentors from public universities in South Georgia. Additionally, there were three P-12 district personnel and seven university personnel. Data were collected using focus group interviews, individual interviews, and document collection.
This study extended the literature by looking at an innovative approach to recruiting interns to school districts facing teacher shortages in South Georgia. The findings from this study produced evidence illustrating to harness complexity with the model, decision-makers should not adapt the original intent of the intern as teacher model too much because this will cause the system to change considerably.
Keywords: student teaching, internship, intern as teacher, teacher shortage, harnessing complexity, teacher educationCHAPTER I: INTRODUCTION 1 -- Problem Statement 9 -- Purpose of the Study 11 -- Research Questions 13 -- Significance of the Study 14 -- Theoretical Framework 15 -- Summary of Methodology 22 -- Delimitations 23 -- Assumptions 25 -- Definition of Terms 26 -- Summary 27 -- CHAPTER II: LITERATURE REVIEW 29 -- Effective Mentoring Processes and Models 34 -- Mentoring Factors 36 -- Teacher Induction Programs 46 -- School Climate and Culture 56 -- Competing Theories 63 -- Inferences for Forthcoming Study 69 -- Theoretical Framework 71 -- Summary and Conclusions 76 -- CHAPTER III: METHODOLOGY 78 -- Research Design and Rationale 78 -- Research Questions 80 -- Participants and Research Setting 80 -- Participant and Site Selection 85 -- Instruments for Data Collection 94 -- Data Collection Methods 104 -- Data Analysis Procedures 104 -- Threats to Validity 107 -- Ethical Procedures 110 -- Summary 111 -- CHAPTER IV: FINDINGS 112 -- Participants 113 -- Data Collection 114 -- Vignettes 116 -- District Stories 116 -- University Stories 143 -- Summary 156 -- CHAPTER V: FINDINGS CONTINUED 157 -- Data Analysis 158 -- Study Themes 162 -- Theme 1: Transitioning from Intern to Teacher 163 -- Theme 2: School Culture 169 -- Theme 3: Investing in Future Teachers 178 -- Theme 4: Supports for Interns 183 -- Theme 5: Success of the Program 194 -- Conclusion 199 -- CHAPTER VI: DISCUSSION AND CONCLUSIONS 201 -- Research Questions 203 -- Methods and Procedures 203 -- Interpretations of Findings 204 -- RQ 1: What Decisions Must be Considered When Implementing the Intern as Teacher Model in a School District? 205 -- RQ 2: Do Districts and Universities Have the Time and Resources to Invest in the Intern? 214 -- RQ 3: How Do School Districts and EPPs Harness Complexity Within the Model? 218 -- Implications of the Study 223 -- Limitations of the Study 228 -- Recommendations 230 -- Conclusion 231 -- REFERENCES 235 -- Appendix A: Diagrammatic Overview of Method 253 -- Appendix B: Email to Georgia Field Directors 255 -- Appendix C: Qualtrics Participation Form 257 -- Appendix D: Orientation Invitation to Mentors and Interns 259 -- Appendix E: Survey Questions for Demographic Data 261 -- Appendix F: Participant Permission to Use Name in Study 263 -- Appendix G: Focus Group Questions 265 -- Appendix H: Focus Group Protocol 267 -- Appendix I: Interview for P-12 Administrators 269 -- Appendix J: Interview for Higher Education Staff Working within the Model 272 -- Appendix K: Initial Code Reduction 275 -- Appendix L: Reorganization of Initial Codes 277 -- Appendix M: Informed Consent- Interview- Recorded 279 -- Appendix N: First Cycle Codes 281 -- Appendix O: Codes and Categories 283 -- Appendix P: Second Cycle Codes 285 -- Appendix Q: IRB Approval Documentation 287Bochenko, MichaelHartsell, Taralynn S.Marciano, Deb L.Radcliffe, Barbara J.Ed.D.Education in Curriculum and Instructio
Using art and literature as educational resources in palliative care.
This case study outlines a staff seminar programme that used art and literature as vehicles to explore personal and professional dimensions of palliative care. Participating staff found the learning experience interesting and insightful
A long-established invasive species alters the functioning of benthic biofilms in lakes
Invasive species often transform environmental conditions, exclude native species and alter ecosystem functioning, including key ecosystem processes underpinning nutrient and energy cycles. However, such impacts have been most documented during periods of invasive species dominance; their influences on functioning at lower relative abundances and after long-term establishment are less well-known.We investigated the effects of Elodea canadensis, a macrophyte native to North America with a long invasion history in many regions of the world, on the biomass accrual and metabolism of littoral zone biofilms growing on organic and inorganic substrates.We deployed nutrient diffusing substrates (NDS) in 18 replicate transects distributed across six lakes, comprising three invaded by E. canadensis and three uninvaded reference lakes. NDS were amended with nitrogen (N), phosphorus (P) or N + P together, or were deployed as unamended controls. E. canadensis relative abundance varied widely in the invaded transects, ranging from 13% to 93% of all macrophyte cover.On control substrates, algal biomass, quantified as Chlorophyll-a, and gross primary production (GPP) were 42% and 78% greater in the invaded compared to uninvaded lakes, respectively. Respiration rates, attributable to responses of both autotrophs and heterotrophs, were 45% greater on control substrates in invaded lakes. By contrast, N-limitation of both biofilm GPP and respiration was 25% and 35% greater in uninvaded compared with invaded lakes.There was no evidence for differences in nutrients, light availability or grazing pressure between invaded and uninvaded transects. Rather, the observed differences in metabolism suggest that the presence of E. canadensis increases availability of N at local scales, reducing N-limitation of biofilms and resulting in elevated rates of biofilm productivity.Our results demonstrate that invasive elodeids might have significant impacts on biofilms and processes associated with the cycling of nutrients, even when long-established and present at lower relative abundances
Exploring Women’s Mutuality in Confronting Care-Precarity: ‘Care Accounts’ – a Conceptual Tool
Exploring scholarship in reciprocity, gift and gendered social capital, and drawing upon research and analysis across 15 years (2003–2018), this article offers fresh theoretical insights into everyday practices of low-paid women with care responsibilities. Framing women’s pragmatic mutuality in confronting precarity in their care arrangements, we propose the concept of ‘Care Accounts’, articulating a practice of collaborative workplace problem solving. Women lodge and generate good will with colleagues by swapping or extending their shifts to cover for each other; generating capacity and continuity of care across unexpected family events or crises. Systems of reciprocal workplace mutuality – care/work micro-networks – build as women pool their capacity to respond. We highlight, however, an ensnarement effect of Care Accounts, as they further lock women into low paid jobs. We suggest priority attention must be given to the prevalence and urgency of ‘care-precarity’ and the dereliction in care planning that Care Accounts reveal
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