448 research outputs found
Revisiting task orientated care: Oral histories of former student nurses in Ireland (1960–2001)
The apprenticeship model of nurse training was in place in Ireland up to the end of the twentieth century. Task orientated care was a feature of this model. It is important to examine task allocation from the student's perspective, in light of current and on-going debates regarding student nurses' supernumerary status. Both approaches influence the status of the student; worker with task allocation and learner with supernumerary status. Oral history interviews were undertaken with twelve former student nurses (1960–2001) to explore their experiences of clinical learning and task allocation. Task allocation consisted of household tasks and tasks involving patient care. Students' experiences were influenced more by issues surrounding the task, particularly the 'task-person', than the task itself. Therefore, a learning environment that is inclusive, supportive and understanding of students' learning is recommended, regardless of the model of nurse training or education that might be in place. These findings can inform current debate on supernumerary status and task allocation for the student nurse within their clinical learning environment, but also on the history of nurse education in Ireland in the twentieth century
Australia\u27s health 2002 : the eighth biennial report of the Australian Institute of Health and Welfare
Australia\u27s Health 2002 is the eighth biennial health report of the Australian Institute of Health and Welfare. It is the nation\u27s authoritative source of information on patterns of health and illness, determinants of health, the supply and use of health services, and health service costs and performance. Australia\u27s Health 2002 is an essential reference and information resource for all Australians with an interest in health
Astrocyte activation and reactive gliosis : A new target in stroke?
Stroke is an acute insult to the central nervous system (CNS) that triggers a sequence of responses in the acute, subacute as well as later stages, with prominent involvement of astrocytes. Astrocyte activation and reactive gliosis in the acute stage of stroke limit the tissue damage and contribute to the restoration of homeostasis. Astrocytes also control many aspects of neural plasticity that is the basis for functional recovery. Here, we discuss the concept of intermediate filaments (nanofilaments) and the complement system as two handles on the astrocyte responses to injury that both present attractive opportunities for novel treatment strategies modulating astrocyte functions and reactive gliosis.Peer reviewe
Primary flap reconstruction of tissue defects after sarcoma surgery enables curative treatment with acceptable functional results: a 7-year review
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Sex specific associations in genome wide association analysis of renal cell carcinoma.
Renal cell carcinoma (RCC) has an undisputed genetic component and a stable 2:1 male to female sex ratio in its incidence across populations, suggesting possible sexual dimorphism in its genetic susceptibility. We conducted the first sex-specific genome-wide association analysis of RCC for men (3227 cases, 4916 controls) and women (1992 cases, 3095 controls) of European ancestry from two RCC genome-wide scans and replicated the top findings using an additional series of men (2261 cases, 5852 controls) and women (1399 cases, 1575 controls) from two independent cohorts of European origin. Our study confirmed sex-specific associations for two known RCC risk loci at 14q24.2 (DPF3) and 2p21(EPAS1). We also identified two additional suggestive male-specific loci at 6q24.3 (SAMD5, male odds ratio (ORmale) = 0.83 [95% CI = 0.78-0.89], Pmale = 1.71 × 10-8 compared with female odds ratio (ORfemale) = 0.98 [95% CI = 0.90-1.07], Pfemale = 0.68) and 12q23.3 (intergenic, ORmale = 0.75 [95% CI = 0.68-0.83], Pmale = 1.59 × 10-8 compared with ORfemale = 0.93 [95% CI = 0.82-1.06], Pfemale = 0.21) that attained genome-wide significance in the joint meta-analysis. Herein, we provide evidence of sex-specific associations in RCC genetic susceptibility and advocate the necessity of larger genetic and genomic studies to unravel the endogenous causes of sex bias in sexually dimorphic traits and diseases like RCC
Genetic Variants Related to Longer Telomere Length are Associated with Increased Risk of Renal Cell Carcinoma.
BACKGROUND: Relative telomere length in peripheral blood leukocytes has been evaluated as a potential biomarker for renal cell carcinoma (RCC) risk in several studies, with conflicting findings. OBJECTIVE: We performed an analysis of genetic variants associated with leukocyte telomere length to assess the relationship between telomere length and RCC risk using Mendelian randomization, an approach unaffected by biases from temporal variability and reverse causation that might have affected earlier investigations. DESIGN, SETTING, AND PARTICIPANTS: Genotypes from nine telomere length-associated variants for 10 784 cases and 20 406 cancer-free controls from six genome-wide association studies (GWAS) of RCC were aggregated into a weighted genetic risk score (GRS) predictive of leukocyte telomere length. OUTCOME MEASUREMENTS AND STATISTICAL ANALYSIS: Odds ratios (ORs) relating the GRS and RCC risk were computed in individual GWAS datasets and combined by meta-analysis. RESULTS AND LIMITATIONS: Longer genetically inferred telomere length was associated with an increased risk of RCC (OR=2.07 per predicted kilobase increase, 95% confidence interval [CI]:=1.70-2.53, p0.5) with GWAS-identified RCC risk variants (rs10936599 and rs9420907) from the telomere length GRS; despite this exclusion, a statistically significant association between the GRS and RCC risk persisted (OR=1.73, 95% CI=1.36-2.21, p<0.0001). Exploratory analyses for individual histologic subtypes suggested comparable associations with the telomere length GRS for clear cell (N=5573, OR=1.93, 95% CI=1.50-2.49, p<0.0001), papillary (N=573, OR=1.96, 95% CI=1.01-3.81, p=0.046), and chromophobe RCC (N=203, OR=2.37, 95% CI=0.78-7.17, p=0.13). CONCLUSIONS: Our investigation adds to the growing body of evidence indicating some aspect of longer telomere length is important for RCC risk. PATIENT SUMMARY: Telomeres are segments of DNA at chromosome ends that maintain chromosomal stability. Our study investigated the relationship between genetic variants associated with telomere length and renal cell carcinoma risk. We found evidence suggesting individuals with inherited predisposition to longer telomere length are at increased risk of developing renal cell carcinoma
The influence of obesity-related factors in the etiology of renal cell carcinoma-A mendelian randomization study.
BACKGROUND: Several obesity-related factors have been associated with renal cell carcinoma (RCC), but it is unclear which individual factors directly influence risk. We addressed this question using genetic markers as proxies for putative risk factors and evaluated their relation to RCC risk in a mendelian randomization (MR) framework. This methodology limits bias due to confounding and is not affected by reverse causation. METHODS AND FINDINGS: Genetic markers associated with obesity measures, blood pressure, lipids, type 2 diabetes, insulin, and glucose were initially identified as instrumental variables, and their association with RCC risk was subsequently evaluated in a genome-wide association study (GWAS) of 10,784 RCC patients and 20,406 control participants in a 2-sample MR framework. The effect on RCC risk was estimated by calculating odds ratios (ORSD) for a standard deviation (SD) increment in each risk factor. The MR analysis indicated that higher body mass index increases the risk of RCC (ORSD: 1.56, 95% confidence interval [CI] 1.44-1.70), with comparable results for waist-to-hip ratio (ORSD: 1.63, 95% CI 1.40-1.90) and body fat percentage (ORSD: 1.66, 95% CI 1.44-1.90). This analysis further indicated that higher fasting insulin (ORSD: 1.82, 95% CI 1.30-2.55) and diastolic blood pressure (DBP; ORSD: 1.28, 95% CI 1.11-1.47), but not systolic blood pressure (ORSD: 0.98, 95% CI 0.84-1.14), increase the risk for RCC. No association with RCC risk was seen for lipids, overall type 2 diabetes, or fasting glucose. CONCLUSIONS: This study provides novel evidence for an etiological role of insulin in RCC, as well as confirmatory evidence that obesity and DBP influence RCC risk
Charlotte Wolff's contribution to psychology and to the history of sexuality.
The Charlotte Wolff Archive in the History of Psychology Centre of the British Psychological Society is the only major collection of working papers from individual psychologists that preserves the papers of a woman psychologist, yet Wolff is relatively unknown. This thesis aims to consider her contribution to psychology and to the history of sexuality. In line with a view of history as alive in the present, this also entails engaging Wolff in contemporary debates on gender and sexuality. To this effect, Chapter 1 presents a biographical sketch of Wolff and introduces her legacy, including how the Wolff Archive was acquired and opened for research for the first time for the author of this thesis. Chapter 2 contextualizes Wolff as a woman psychologist in line with a feminist historical project of reclaiming missing voices - which entails a discussion of ways of 'doing history' and 'doing biography' and an examination of the concept of the archive. Chapter 3 considers the history of sexuality and how sexual identities have solidified with the rise of sexology; it also gives an account of the struggle for homosexual emancipation in Germany and of the implications of the 'forgetting' of lesbianism in German and British law, and concludes with some notes on Wolff's contemporaries in lesbian history Radclyffe Hall and Gertrude Stein. Having so contextualized Wolff, the thesis considers in further chapters her contribution to the history of sexuality by examining her autobiographical biographical writings as documents of lesbian history and beyond (Chapter 4), her contribution - with book length studies - to lesbian feminism (Chapter 5) and to theory and research on bisexuality (Chapter 6). Wolff's work as biographer of Magnus Hirschfeld (as well her theorizing of biography) are addressed in Chapter 7. Finally, Chapter 8 offers some conclusions on why Wolff has yet to be fully 'reclaimed' as the previous chapters on her work show that she deserves. Additional reflections are offered on the archive and archival research - at the level of the particular (engaging with the Wolff Archive) and in general terms. Finally, the thesis suggests future lines of enquiry
Charlotte Wolff's contribution to psychology and to the history of sexuality
EThOS - Electronic Theses Online ServiceGBUnited Kingdo
Modelling of verticle spindle mills. Part 2: integrated models for E-mill MPS and CKP mills
The sub-models of comminution and classification for vertical spindle mill (VSM) presented in Part 1 of this paper have been integrated in the VSM simulation models for the E-mill, MPS mill and CKP mill. Plant survey data from an E-mill (ball-race) and MPS mill (roller-race), both including internal streams and external sampling, and the CKP mill (roller-race without internal classification) were used to calibrate the VSM sub-model parameters for each device. It was found that the fitted comminution and classification model parameters were closely related to the primary air flow rates in the VSM operation. Relationships between the sub-model parameters and the air flow rates were established. Once the models are calibrated, no further model parameters fitting is required. The VSM models have been implemented in Microsoft Excel via the MDK (Model Development Kits) protocol. A number of potential applications of the JKMRC VSM models for coal-fired power stations and other industries are discussed
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