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Selected AbstractsStudents' evaluation of online course materials in Fixed Prosthodontics: a case studyEUROPEAN JOURNAL OF DENTAL EDUCATION, Issue 2 2001Elizabeth S. Pilcher Purpose: The purpose of this study was to assess a new online course format for dental students. Preclinical Fixed Prosthodontics I is a didactic and laboratory course given in the first year of the dental school curriculum. In the spring semester of 1999, the didactic portion of the course was offered in a web-based format as a supplement to the traditional lecture format. Methods: The study population was 53 first year dental students at one school. The study design was a one group post test without a control group. The online questionnaire consisted of multiple choice questions, Leikert scale questions and open-ended questions. Data were collected using Filemaker Pro and analyzed using EpiInfo. Results: Student response rate was 96% (52/53). All of the students responded that they felt comfortable with their computer skills in utilizing this course format. Most (96%) responded that the online materials were either very helpful or helpful to them. About half, (54%) recommended that the online format be continued as a supplement to traditional lectures, while 28% recommended replacing traditional lectures with the new format in order to provide more laboratory time in the course. The syllabus, lecture materials, bulletin board and handouts were found to be the most helpful online features. The least helpful features were the listserve, decision tree, and e-mail options. Most frequently mentioned strengths of the online material were listed as 1) the ability to view material at their own pace and at a time convenient to them, 2) quality photographs in lecture materials and 3) online quizzes. Weaknesses of the course were ranked by students as 1) problems with access to the materials and the intranet system, 2) taking quizzes online and 3) difficulty in printing the web-based lecture materials. Conclusions: The delivery of web-based material as a course supplement in Fixed Prosthodontics I was determined to be an overall success. Fine tuning of problems with access to the materials took place throughout the course. The student feedback will help direct future development of web-based course materials in the dental school curriculum. [source] Retinal oxygenation in diabetic retinopathyACTA OPHTHALMOLOGICA, Issue 2009SH HARDARSON Purpose Diabetic retinopathy (DR) is believed to cause retinal tissue hypoxia by damaging retinal capillaries. The purpose of this study was to examine the effect of diabetic retinopathy on oxygen saturation in retinal arterioles and venules. Methods The retinal oximeter (Oxymap ehf., Reykjavik, Iceland) is composed of a fundus camera, beam splitter and light filters. Specialized software calculates relative oxygen saturation from light absorption at two wavelengths of light (605nm and 586nm). One first or second degree temporal arteriole and venule were measured in one eye of 31 healthy individual and 28 patients with diabetic retinopathy. The diabetic patients had background DR (n=6), macular oedema (n=7), untreated preproliferative or proliferative DR (n=7) or stable proliferative DR after treatment (n=8). Statistical analyses were performed with an unpaired t-test, one-way ANOVA and Dunnett's post test. Results Retinal arteriolar saturation was 93±4% (n=31, mean±SD) in healthy subjects and 101±6% (n=28) in patients with DR (p<0.0001). Retinal venular saturation was 58±6% in healthy subjects and 67±8% in diabetic patients (p<0.0001). Arteriolar and venular saturation was higher in all subgroups of diabetic patients (see methods) than in healthy subjects. Conclusion Increased oxygen saturation in retinal vessels in diabetic retinopathy, also found by other researchers, is consistent with poor distribution of blood and oxygen to the retinal tissue rather than decreased total retinal blood flow. Poor distribution of oxygen may be caused by capillary dropouts and shunts as well as thickening of the capillary walls. Commercial interest [source] Robotics and science literacy: Thinking skills, science process skills and systems understandingJOURNAL OF RESEARCH IN SCIENCE TEACHING, Issue 3 2008Florence R. Sullivan Abstract This paper reports the results of a study of the relationship of robotics activity to the use of science literacy skills and the development of systems understanding in middle school students. Twenty-six 11,12-year-olds (22 males and 4 females) attending an intensive robotics course offered at a summer camp for academically advanced students participated in the research. This study analyzes how students utilized thinking skills and science process skills characteristic of scientifically literate individuals to solve a robotics challenge. In addition, a pre/post test revealed that course participants increased their systems understanding, t (21),=,22.47, p,<,.05. It is argued that the affordances of the robotics environment coupled with a pedagogical approach emphasizing open-ended, extended inquiry prompts the utilization of science literacy-based thinking and science process skills and leads to increased systems understanding. © 2008 Wiley Periodicals, Inc. J Res Sci Teach 45: 373,394, 2008 [source] Evaluation of HIV/AIDS Education in Russia Using a Video ApproachJOURNAL OF SCHOOL HEALTH, Issue 6 2000Mohammad R. Torabi ABSTRACT: HIV/AIDS has intruded upon the geographic, political, ethnic, gender, and sexual orientation of communities all over the world. As of April 1999, Russia has recorded approximately 13,532 cases of HIV infection. Since the costs of treatment are expensive for many countries, and especially for Russia, educational intervention appears to offer the most effective and affordable solution. A quasi-experimental design, with pre/post tests and intervention (through video education)/control groups, was used to study 20 public schools in St. Petersburg, Russia. Results confirmed the lack of HIV/AIDS education in schools and insufficient information sources from parents, friends, and public health education. ANCOVA statistics demonstrated that use of video education significantly improved students' scores on knowledge and attitudes related to HIV/AIDS prevention. Thus, health educators should consider video education as an effective and efficient tool to present facts to a young audience when they face constraints of shortage of funds, lack of trained teachers, and scarcity of related information. [source] | ||||||||||