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81.
Patterson JS 《Journal of veterinary medical education》2006,33(3):426-431
Second-year veterinary students were surveyed at the beginning and end of a 15-week semester regarding their confidence in performing three clinical reasoning skills: (1) making Problem Lists; (2) making Rule-Out Lists; and (3) selecting appropriate diagnostic tests. Each week during the semester, these skills were practiced in small-group case discussions. Changes in self-confidence were analyzed and studied in light of faculty assessments of student competence in performance of the three skills. RATIONALE: The purpose of the study was to determine if students' self-confidence in performing three clinical reasoning skills increased with practice. METHODOLOGY: On the first and last days of class, students rated their confidence in each of the three skills on a scale of 0 to 10. Mean confidence scores for the whole class both for time points and for each of the three skills were analyzed. RESULTS: There were significant increases in students' self-confidence in all three clinical reasoning skills over the semester each year. A greater percentage of students expressed improved confidence in selecting appropriate diagnostic tests than in the other two skills in three of the four years studied. CONCLUSIONS: Students' self-confidence in performing three clinical reasoning skills improved over the course of a semester in which they practiced the skills in a CBL format. Subjective faculty assessment of students' competence in these skills generally indicated improvement. However, no meaningful conclusions about the correlation of skill competence and student confidence could be drawn because of inadequacies in the measurement of student performance. 相似文献
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Cohen J 《Science (New York, N.Y.)》2006,314(5800):743-745
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Robert R. Carlton Jon S. West Pete Smith Bruce D. L. Fitt 《European journal of plant pathology / European Foundation for Plant Pathology》2012,133(1):333-351
Crop disease not only threatens global food security by reducing crop production at a time of growing demand, but also contributes
to greenhouse gas (GHG) emissions by reducing efficiency of N fertiliser use and farm operations and by driving land use change.
GHG emissions associated with adoption of reduced tillage, organic and integrated systems of field crop production across
the UK and selected regions are compared with emissions from conventional arable farming to assess their potential for climate
change mitigation. The reduced tillage system demonstrated a modest (<20%) reduction in emissions in all cases, although in
practice it may not be suitable for all soils and it is likely to cause problems with control of diseases spread on crop debris.
There were substantial increases in GHG emissions associated with the organic and integrated systems at national level, principally
due to soil organic carbon losses from land use change. At a regional level the integrated system shows the potential to deliver
significant emission reductions. These results indicate that the conventional crop production system, coupled to reduced tillage
cultivation where appropriate, is generally the best for producing high yields to minimise greenhouse gas emissions and contribute
to global food security, although there may be scope for use of the integrated system on a regional basis. The control of
crop disease will continue to have an essential role in both maintaining productivity and decreasing GHG emissions. 相似文献
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J Cohen 《Science (New York, N.Y.)》2012,337(6091):176-177