Preschool Teachers\u27 Attitudes and Beliefs Toward Science

In the United States, a current initiative, Advancing Active STEM Education for Our Youngest Learners, aims to advance science, technology, engineering, and math (STEM) education in early childhood. The purpose of this study was to understand preschool teachers\u27 proficiency with science and address the problem of whether or not science learning opportunities are provided to young children based on teachers\u27 attitudes and beliefs. A theoretical framework for establishing teachers\u27 attitudes toward science developed by van Aalderen-Smeets, van der Molen, and Asma, along with Bandura\u27s theory of self-efficacy were the foundations for this research. Research questions explored preschool teachers\u27 attitudes and beliefs toward science in general and how they differed based on education level and years of preschool teaching experience. Descriptive comparative data were collected from 48 preschool teacher participants using an online format with a self-reported measure and were analyzed using nonparametric tests to describe differences between groups based on identified factors of teacher comfort, child benefit, and challenges. Results indicated that the participants believed that early childhood science is developmentally appropriate and that young children benefit from science instruction through improved school-readiness skills. Preschool teachers with a state credential or an associate\u27s degree and more teaching experience had more teacher comfort toward science based on attitudes and beliefs surveyed. The data indicated participating preschool teachers experienced few challenges in teaching science. The study may support positive social change through increased awareness of strengths and weaknesses of preschool teachers for the development of effective science professional development. Science is a crucial component of school-readiness skills, laying a foundation for success in later grades

The Relationship of the Clinical Disc Margin and Bruch's Membrane Opening in Normal and Glaucoma Subjects.

PurposeWe tested the hypotheses that the mismatch between the clinical disc margin (CDM) and Bruch's membrane opening (BMO) is a function of BMO area (BMOA) and is affected by the presence of glaucoma.MethodsA total of 45 normal eyes (45 subjects) and 53 glaucomatous eyes (53 patients) were enrolled and underwent radial optic nerve head (ONH) imaging with spectral domain optical coherence tomography. The inner tip of the Bruch's membrane (BM) and the clinical disc margin were marked on radial scans and optic disc photographs, and were coregistered with custom software. The main outcome measure was the difference between the clinical disc area (CDA) and BMOA, or CDA-BMOA mismatch, as a function of BMOA and diagnosis. Multivariate regression analyses were used to explore the influence of glaucoma and BMOA on the mismatch.ResultsGlobal CDA was larger than BMOA in both groups but the difference was statistically significant only in the normal group (1.98 ± 0.37 vs. 1.85 ± 0.45 mm2, P = 0.02 in the normal group; 1.96 ± 0.38 vs. 1.89 ± 0.56 mm2, P = 0.08 in the glaucoma group). The sectoral CDA-BMOA mismatch was smaller in superotemporal (P = 0.04) and superonasal (P = 0.05) sectors in the glaucoma group. The normalized CDA-BMOA difference decreased with increasing BMOA in both groups (P < 0.001). Presence or severity of glaucoma did not affect the CDA-BMOA difference (P > 0.14).ConclusionsClinical disc area was larger than BMOA in normal and glaucoma eyes but reached statistical significance only in the former group. The CDA-BMOA mismatch diminished with increasing BMOA but was not affected by presence of glaucoma. These findings have important clinical implications regarding clinical evaluation of the ONH

Flexible fluoropolymer filled protective coatings

Metal oxide films such as SiO2 are known to provide an effective barrier to the transport of moisture as well as gaseous species through polymeric films. Such thin film coatings have a tendency to crack upon flexure of the polymeric substrate. Sputter co-deposition of SiO2 with 4 to 15 percent fluoropolymers was demonstrated to produce thin films with glass-like barrier properties that have significant increases in strain to failure over pure glass films which improves their tolerance to flexure on polymeric substrates. Deposition techniques capable of producing these films on polymeric substrates are suitable for durable food packaging and oxidation/corrosion protection applications

Digitally restoring artefacts using 3D modelling techniques for immersive learning opportunities

Digital heritage projects are an important tool in safeguarding cultural heritage and making it available to future generations. The work presented here synthesises 3D modelling techniques with the process of digitising artefacts. New digital reconstructions can be created based on authentic data. These are then implemented in various immersive learning opportunities, such as interactive activities and engaging virtual worlds. This is applied to the restoration of two Pictish symbol stones used in an online colour configurator tool and a virtual environment

Engaging Youth In Creating A Healthy School Environment: A Photovoice Strategy

This study examined a pilot participatory needs assessment that was conducted with nine senior high school students from Port of Spain, Trinidad. Photovoice was used to engage these students in critical dialogue about their perceptions of issues affecting their health. Trained graduate students facilitated a 3-day training session in photovoice technique/ethics, writing narratives, critical reflection and dialogue with these students. Once trained, they were given disposable cameras and asked to photograph their school environment and document their thoughts on what they had photographed. After collation of photos and dialogue, seven health themes emerged. The most recurring themes included quality of the food served at schools, need for safe, clean and well-maintained school facilities, and role modeling by teachers, parents and community. Recommendations to address the concerns identified were discussed by the participants. The study concluded that conducting needs assessment, which concentrates on the voices of those affected, can be a first step in creating successful and cost-efficient programs and interventions tailored to specific groups. A needs assessment using photovoice should be a technique considered by school staff, government leaders, health professionals, and NGOs

Digitally restoring artefacts using 3D modelling techniques for immersive learning opportunities

Digital heritage projects are an important tool in safeguarding cultural heritage and making it available to future generations. The work presented here synthesises 3D modelling techniques with the process of digitising artefacts. New digital reconstructions can be created based on authentic data. These are then implemented in various immersive learning opportunities, such as interactive activities and engaging virtual worlds. This is applied to the restoration of two Pictish symbol stones used in an online colour configurator tool and a virtual environment.Publisher PD

Digital modes of interpretation of Pictish sculpture

Funding: Scottish Funding Council.Cultural heritage is no longer something that can only be experienced in a museum exhibition. Digital tools have facilitated the distribution of material relating to artefacts, both in its representation and in presenting its context. This paper describes how digital modelling techniques can be synthesised with 3D scanning to digitally restore artefacts and create authentic replicas of their original states. The digital artefacts can then be used to assist the process of interpreting these artefacts in diverse forms, both in the museum and outside the museum. The study looks at Pictish sculpture as a case-study, restoring 3D models of two stones, and creating varying opportunities for their interpretation. As part of this study, new interactive tools, a virtual reality environment, and a virtual tour are built to assist immersive interpretation of the Pictish sculpture. The application of these digitised objects serves as an opportunity for informal learning. These applications were evaluated during a drop-in session. Findings show that all participants enjoyed the immersive mode of learning with 89% also showing a willingness to learn more about the topic.Publisher PDFPeer reviewe

Gastrointestinal side effects and adequacy of enteral intake in hematopoietic stem cell transplant patients

BACKGROUND: Patients undergoing hematopoietic stem cell transplant (HSCT) can experience gastrointestinal (GI) side effects as a complication of the treatment. Limited research exists describing how the duration and severity of GI side effects influence the consumption of adequate calorie intake in this population. The purpose of this study was to assess differences in GI side effects between patients who consumed adequate calories compared with those who did not. METHODS: The MD Anderson Symptom Inventory-Gastrointestinal (MDASI-GI) tool was used to record daily GI side effects of 72 HSCT patients. Daily calorie intake was determined via calorie counts. Data were collected from day of transplant until engraftment. RESULTS: Median percentage of caloric needs consumed for all patients was 49.2% (interquartile range, 35.1-66.6). Calorie intake decreased from baseline to transplant day 8 as severity of GI symptoms increased. An inverse relationship between percentage of caloric needs met and MDASI-GI component score, MDASI-GI symptom score, and lack of appetite score was observed. The only significant difference in MDASI-GI symptom scores between those who consumed adequate calories and those who consumed inadequate calories was for diarrhea; subjects who consumed >60% of caloric needs had significantly lower median diarrhea scores. CONCLUSION: Most patients consumed <60% of their caloric needs from time of transplant to time of engraftment. More research is needed to provide insight into strategies to increase intake and to describe the implications of prolonged inadequate intake in HSCT patients