146 research outputs found

    Innovations in Industrial Arts Teacher: Education--Curriculum--Facilities--Methodology

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    The University of Northern Iowa Department of Industrial Technology is involved in a three-phase curriculum development project along with new facility design and construction and implementation of instructional innovations. The report reflects decisions made to date in the process; including the completed phase of developing concept-based cluster courses to serve all majors in the department; including education majors. Second and third phases will focus on advanced technical courses; the professional sequence; and the graduate program. Considered in the report are factors influencing industrial arts teacher education at all levels; such as components of the industrial arts education program; State certification requirements; university regulations; programs offered by the department; the faculty; basic core theory courses; and facilities design and flexibility. Many diagrams illustrate the report; particularly in the area concerning physical facilities. (MDW

    Service Learning as Scholarship in Teacher Education

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    This article describes how two teacher education service-learning programs illustrate alternative interpretations of scholarship. A tutoring-mentoring program in a teaching oriented masters institution and a motor skill development program in a land grant doctoral-research institution are described relative to how each illustrates forms of scholarship as interpreted by Boyer ( 1990). We discuss how these forms of scholarship the scholarship of discovery, integration, teaching, and application--relate to stated institutional mission and evaluation practices. Service-learning experiences for preservice teachers can have the multiple benefits of promoting an ethic of service and social responsibility, demonstrating excellence in teacher education, and exemplifying scholarly endeavors

    INSTRUCTION MATTERS: INFLUENCE OF INSTRUCTION ON MOTOR SKILL LEARNING ACROSS DIFFERENT MASTERY MOTIVATIONAL CLIMATE CONDITIONS

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    Research suggests that both practice and reinforcement are necessary for skill learning. In school settings however, there is typically only one teacher per class, and by consequence, providing individual feedback and reinforcement to all students is more challenging. Thus, the design of the task in schools/classes is extremely critical to maximize opportunities for practice and feedback. The purpose of this study was to examine the effects of different teacher behaviors (i.e., explicit instruction and feedback) within mastery climates on motor skill performance. 99 Preschool age children (Mage= 4.75 years) participated in a mastery motivational climate physical play programme intervention bi-weekly for 7 weeks. Children were randomly assigned to a motor skill condition, physical activity condition, mixed condition, or a free play control group. Analysis of covariance (ANCOVA) with pre-test scores as the covariate were conducted to determine the effects of condition on post-test motor skill scores. Results indicated that the children from the motor skill and mixed conditions showed significantly greater improvements than the other two groups. These findings suggest that instruction matters in learning motor skills. In the two conditions where children were given explicit instructional cues and feedback about performing tasks, they showed far superior gains than those children where the lesson focus was simply just on physical activity or when no instruction was given at all.  Article visualizations

    Switching the stereochemical outcome of 6-endo-trig cyclizations; Synthesis of 2,6-Cis-6-substituted 4-oxopipecolic acids

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    A base-mediated 6-endo-trig cyclization of readily accessible enone-derived α-amino acids has been developed for the direct synthesis of novel 2,6-cis-6- substituted-4-oxo-L-pipecolic acids. A range of aliphatic and aryl side chains were tolerated by this mild procedure to give the target compounds in good overall yields. Molecular modeling of the 6-endo-trig cyclization allowed some insight as to how these compounds were formed, with the enolate intermediate generated via an equilibrium process, followed by irreversible tautomerization/neutralization providing the driving force for product formation. Stereoselective reduction and deprotection of the resulting 2,6-cis-6-substituted 4-oxo-L-pipecolic acids to the corresponding 4-hydroxy-L-pipecolic acids was also performed

    Effects of increased pCO2 and temperature on the North Atlantic spring bloom. III. Dimethylsulfoniopropionate

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    The CLAW hypothesis argues that a negative feedback mechanism involving phytoplankton- derived dimethylsulfoniopropionate (DMSP) could mitigate increasing sea surface temperatures that result from global warming. DMSP is converted to the climatically active dimethylsulfide (DMS), which is transferred to the atmosphere and photochemically oxidized to sulfate aerosols, leading to increases in planetary albedo and cooling of the Earth’s atmosphere. A shipboard incubation experiment was conducted to investigate the effects of increased temperature and pCO2 on the algal community structure of the North Atlantic spring bloom and their subsequent impact on particulate and dissolved DMSP concentrations (DMSPp and DMSPd). Under ‘greenhouse’ conditions (elevated pCO2; 690 ppm) and elevated temperature (ambient + 4°C), coccolithophorid and pelagophyte abundances were significantly higher than under control conditions (390 ppm CO2 and ambient temperature). This shift in phytoplankton community structure also resulted in an increase in DMSPp concentrations and DMSPp:chl a ratios. There were also increases in DMSP-lyase activity and biomass-normalized DMSP-lyase activity under ‘greenhouse’ conditions. Concentrations of DMSPd decreased in the ‘greenhouse’ treatment relative to the control. This decline is thought to be partly due to changes in the microzooplankton community structure and decreased grazing pressure under ‘greenhouse’ conditions. The increases in DMSPp in the high temperature and greenhouse treatments support the CLAW hypothesis; the declines in DMSPd do not

    Effectiveness of interventions to promote healthy diet in primary care: systematic review and meta-analysis of randomised controlled trials

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    Background A diet rich in fruit, vegetables and dietary fibre and low in fat is associated with reduced risk of chronic disease. This review aimed to estimate the effectiveness of interventions to promote healthy diet for primary prevention among participants attending primary care.<p></p> Methods A systematic review of trials using individual or cluster randomisation of interventions delivered in primary care to promote dietary change over 12 months in healthy participants free from chronic disease or defined high risk states. Outcomes were change in fruit and vegetable intake, consumption of total fat and fibre and changes in serum cholesterol concentration.<p></p> Results Ten studies were included with 12,414 participants. The design and delivery of interventions were diverse with respect to grounding in behavioural theory and intervention intensity. A meta-analysis of three studies showed an increase in fruit consumption of 0.25 (0.01 to 0.49) servings per day, with an increase in vegetable consumption of 0.25 (0.06 to 0.44) serving per day. A further three studies that reported on fruit and vegetable consumption together showed a pooled increment of 0.50 (0.13 to 0.87) servings per day. The pooled effect on consumption of dietary fibre, from four studies, was estimated to be 1.97 (0.43 to 3.52) gm fibre per day. Data from five studies showed a mean decrease in total fat intake of 5.2% of total energy (1.5 to 8.8%). Data from three studies showed a mean decrease in serum cholesterol of 0.10 (-0.19 to 0.00) mmol/L.<p></p> Conclusion Presently-reported interventions to promote healthy diet for primary prevention in primary care, which illustrate a diverse range of intervention methods, may yield small beneficial changes in consumption of fruit, vegetables, fibre and fat over 12 months. The present results do not exclude the possibility that more effective intervention strategies might be developed.<p></p&gt

    Coding, Recording and Incidence of Different Forms of Coronary Heart Disease in Primary Care

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    To evaluate the coding, recording and incidence of coronary heart disease (CHD) in primary care electronic medical records.Data were drawn from the UK General Practice Research Database. Analyses evaluated the occurrence of 271 READ medical diagnostic codes, including categories for 'Angina', 'Myocardial Infarction', 'Coronary Artery Bypass Grafting' (CABG), 'percutaneous transluminal coronary angioplasty' (PCTA) and 'Other Coronary Heart Disease'. Time-to-event analyses were implemented to evaluate occurrences of different groups of codes after the index date.Among 300,020 participants aged greater than 30 years there were 75,197 unique occurrences of coronary heart disease codes in 24,244 participants, with 12,495 codes for incident events and 62,702 for prevalent events. Among incident event codes, 3,607 (28.87%) were for angina, 3,262 (26.11%) were for MI, 514 (4.11%) for PCTA, 161 (1.29%) for CABG and 4,951 (39.62%) were for 'Other CHD'. Among prevalent codes, 20,254 (32.30%) were for angina, 3,644 (5.81%) for MI, 34,542 (55.09%) for 'Other CHD' and 4,262 (6.80%) for CABG or PCTA. Among 3,685 participants initially diagnosed exclusively with 'Other CHD' codes, 17.1% were recorded with angina within 5 years, 5.6% with myocardial infarction, 6.3% with CABG and 8.6% with PCTA. From 2000 to 2010, the overall incidence of CHD declined, as did the incidence of angina, but the incidence of MI did not change. The frequency of CABG declined, while PCTA increased.In primary care electronic records, a substantial proportion of coronary heart disease events are recorded with codes that do not distinguish between different clinical presentations of CHD. The results draw attention to the need to improve coding practice in primary care. The results also draw attention to the importance of code selection in research studies and the need for sensitivity analyses using different sets of codes
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