256 research outputs found
Letter, Pauline Rogers to Mattie Boswell; 7/22/1897
Letter from Pauline Rogers at Lauderdale Normal to Mattie Boswell, telling Mattie that they found her lost fob chain.https://scholarsjunction.msstate.edu/mss-boswell-stevens-papers/1004/thumbnail.jp
Swept source optical coherence tomography Gabor fusion splicing technique for microscopy of thick samples using a deformable mirror
We present a swept source optical coherence tomography (OCT) system at 1060 nm equipped with a wavefront sensor at 830 nm and a deformable mirror in a closed-loop adaptive optics (AO) system. Due to the AO correction, the confocal profile of the interface optics becomes narrower than the OCT axial range, restricting the part of the B-scan (cross section) with good contrast. By actuating on the deformable mirror, the depth of the focus is changed and the system is used to demonstrate Gabor filtering in order to produce B-scan OCT images with enhanced sensitivity throughout the axial range from a Drosophila larvae. The focus adjustment is achieved by manipulating the curvature of the deformable mirror between two user-defined limits. Particularities of controlling the focus for Gabor filtering using the deformable mirror are presented. Ă© 2015 Society of Photo-Optical Instrumentation Engineers
Dietary patterns in pregnancy and associations with nutrient intakes
Despite the recent popularity in the use of dietary patterns to investigate diet-disease associations, the associations between dietary patterns and nutrient intakes have not been fully explored. This paper determines the linear and non-linear associations between estimated nutrient intake (considered as both absolute and relative intake) and distinct dietary patterns, obtained during the third trimester of pregnancy using principal components analysis (PCA). It also examines the proportion of variability explained by the patterns in food and nutrient intakes. Pregnant women were asked to record the frequency of consumption of a variety of food items as part of regular self-completion questionnaires, the primary source of data collection in the Avon Longitudinal Study of Parents and Children, 12 035 cases were available. Individual dietary components were identified using PCA and scores on these components were related to estimated nutrient intakes. Five individual dietary patterns were established to best describe the types of diet being consumed in pregnancy. Scores on the âprocessedâ and âconfectioneryâ patterns were negatively related to the estimated intake of most nutrients with the exception of energy, fats and sugars, which increased with higher scores. Scores on the âhealth-consciousâ and âtraditionalâ components showed positive linear relationships with all nutrients. The results presented here suggest that dietary patterns adequately characterize dietary intake. There is, therefore, potential for dietary patterns to be used as a valid tool in assessing the relationship between diet and health outcomes, and dietary pattern scores could be used as covariates in specific nutrient-disease studies
Repairing the circular economy: Public perception and participant profile of the repair economy in Hull, UK
Repair is an essential aspect of circular economy (CE) strategies to extend the life of products and materials, and has further been suggested as a key sector to benefit from employment through CE transitions. At the same time, CE narratives around repair have been criticised as highly technocratic, neglecting the body of literature exploring repair as a relational act embedded in daily life. Hull, UK has been characterised as a structurally disadvantaged city, which might benefit from development opportunities offered through an expanded repair economy. However, a better understanding of the demographics of repair users is needed to promote its expansion. Therefore, this research aims to increase understanding of public perceptions, attitudes and behaviours relating to repair as both an option for consumers and as potential employment. The study combines literature in CE, human geography, and consumer behaviour to critically analyse a public survey (n = 740) conducted in partnership with Hull City Council. Results explore demographic associations with repair behaviour, identifying a profile of repair economy participants. Furthermore, an interdisciplinary discussion identifies a tension between repair as an act of necessity, which often carries a negative stigma, and that of choice for those privileged with skills and excess leisure time. Gender discrepancies between public perceptions, attitudes, and behaviours are identified, and policy recommendations for the development of an inclusive repair economy are made. While an opportunity for an expanded repair economy in the city is apparent, further research is needed to assess the quality of work in the sector
School Improvement Tool: A summary of the underpinning research
In 2023, ACER published the School Improvement Tool (SIT), the second iteration of the National School Improvement Tool (NSIT). A comprehensive review of international research was undertaken to inform the development of the SIT which consists of nine inter-related domains that describe the practices of highly effective schools and leaders. This document provides a summary of research evidence that underpins each of the nine domains of the SIT. Acknowledging interdependencies between domains, it presents a narrative of key evidence and research-based considerations for each domain. Further detail about the evidence for each domain can be found in the School Improvement Tool Literature Review
School Improvement Tool: Literature review
The School Improvement Tool identifies practices of highly effective schools and schools which have undergone substantial improvement, based on evidence from the international literature. It is made up of nine inter-related domains, or areas of practice. This literature review presents a thematic synthesis of the research evidence across the nine domains of the School Improvement Tool. This review underpinned the development of the School Improvement Tool, as the Second iteration of the National School Improvement Tool
Quality of Working Life in the Circular Economy: the Case of Self-employment in the Repair Sector
Establishing a circular economy is assumed by some definitions to include social benefits such as employment opportunities; however, research beyond quantitative job creation projections is only recently emerging. While the repair sector is well-established, it has been suggested that increasing circularity implies significantly expanded demand for this service. This article uses five case studies of repair workers, based on semi-structured interviews, to explore self-employment in the repair service sector. Findings indicate that the stresses of work in the circular economy are similar to those of other fields, with self-employment offering opportunities both for job satisfaction and additional pressures. Research needs to give more consideration to the social implications of a circular transitionâwork may be a necessity for a satisfactory life experience (for most people), but it is under-ambitious to assume that having work is sufficient to achieve that, or should be the limit of ambition for a sustainability transition
Levels, trends and determinants of technical efficiency of general hospitals in Uganda: data envelopment analysis and Tobit regression analysis
General hospitals provide a wide range of primary and secondary healthcare services. They accounted for 38% of government funding to health facilities, 8.8% of outpatient department visits and 28% of admissions in Uganda in the financial year 2016/17. We assessed the levels, trends and determinants of technical efficiency of general hospitals in Uganda from 2012/13 to 2016/17.
Methods
We undertook input-oriented data envelopment analysis to estimate technical efficiency of 78 general hospitals using data abstracted from the Annual Health Sector Performance Reports for 2012/13, 2014/15 and 2016/17. Trends in technical efficiency was analysed using Excel while determinants of technical efficiency were analysed using Tobit Regression Model in STATA 15.1.
Results
The average constant returns to scale, variable returns to scale and scale efficiency of general hospitals for 2016/17 were 49% (95% CI, 44â54%), 69% (95% CI, 65â74%) and 70% (95% CI, 65â75%) respectively. There was no statistically significant difference in the efficiency scores of public and private hospitals. Technical efficiency generally increased from 2012/13 to 2014/15, and dropped by 2016/17. Some hospitals were persistently efficient while others were inefficient over this period. Hospital size, geographical location, training status and average length of stay were statistically significant determinants of efficiency at 5% level of significance.
Conclusion
The 69% average variable returns to scale technical efficiency indicates that the hospitals could generate the same volume of outputs using 31% (3439) less staff and 31% (3539) less beds. Benchmarking performance of the efficient hospitals would help to guide performance improvement in the inefficient ones. There is need to incorporate hospital size, geographical location, training status and average length of stay in the resource allocation formula and adopt annual hospital efficiency assessments
School Improvement Tool Elaborations: Student engagement and wellbeing. Background report and literature review
This literature review outlines the evidence that underpins the development of a set of evidence-informed elaborations, or specific practices, that support student engagement and wellbeing across the 9 domains of the National School Improvement Tool (NSIT). These observable, measurable practices to support student engagement and wellbeing have been developed from a review of relevant literature in the areas of socio-emotional learning (SEL), health and wellbeing, student engagement and a sense of belonging, and motivations for engagement. They also take account of commissioned research reports by the Queensland Department of Education and the Department\u27s (2018) approach to student learning and wellbeing across the whole school: creating safe, supportive, and inclusive environments; building the capability of staff, students and the school community; and developing strong systems for early intervention. The Department of Education Queensland engaged the Australian Council for Educational Research (ACER) to elaborate the evidence underpinning the National School Improvement Tool (NSIT) as it relates to student wellbeing and engagement to produce a set of related practices or elaborations to support schools to improve their practice. The overarching research questions were: How do student engagement, wellbeing and learning outcomes relate? What is the evidence relating to whole-of-school approaches to student engagement and wellbeing? What are the evidence-based practices that lift student engagement and wellbeing, alongside academic gain, as aligned with each of the 9 National School Improvement Tool domains
Effects of Biochar on Soil Fertility and Crop Yields: Experience from the Southern Highlands of Tanzania
The worldâs agricultural production is declining due to severe loss of soil fertility through natural processes or because of human activities. Biochar has been identified as a potential soil amendment to regain its fertility and increase crop productivity. This study aimed to assess the effects of biochar on soil nutrients and crop yields in the southern highlands of Tanzania. Data were collected through key informant and household interviews, and from sampling of soils in coffee farms where biochar of maize cobs origin was incorporated at the rate of 3 t ha-1. Purposive sampling approach was deployed to identify the villages in which farmers have been incorporating biochar in farms. A total of 172 households, 30 key informants, and 12 top and subsoil samples were involved in this study. Quantitative data were analyzed using SPSS version 20, and excel spreadsheet was used for descriptive results and relationships. The findings revealed that biochar significantly increased soil pH, iron (Fe), organic carbon (OC), cation exchange capacity (CEC) and exchangeable bases (potassium-K, magnesium-Mg). T - tests showed significant increase of soil nutrients in biochar treated soils. In addition, biochar increased coffee and maize yields from 1 t ha-1 to 3 t ha-1.
Keywords: Biochar; Soil Nutrients; Food Security; Resilience; Adaptatio
- âŠ