Robotics technology is expected to alter many aspects of people's lives as well as the field of education. The following study will be concerned with three scenarios in which robots were related to student learning, i. e. learning about, from, and with robots. The analysis of the interview data, garnered from 85 students, allows for an understanding of students' perceptions and attitudes towards robots and learning: (a) generally, the younger the students, the more enthusiastic they were about learning about robots; (b) robots were predominantly perceived as being male or having no sex; (c) the students found it possible to learn something from robots, though this itself did not suggest that they regarded teaching robots as teachers; (d) an element critically lacking in robots, which allowed them to act as qualified teachers, was the 'emotion' generally embedded in human behaviors and communications; and (e) in relation to the scenario of learning with robots, the students were expecting the robots to perform roles such as private tuition or that of learning tools rather than companions or collaborators.
BackgroundMany patients with glaucoma have difficulty using antiglaucoma eye drops because of dry eye symptom. In this prospective, randomized, double-blind, placebo-controlled study, we evaluated the effect of Korean Red Ginseng on dry eye syndrome in patients with glaucoma treated with antiglaucoma eye drops.MethodsForty-nine participants were allocated to the Korean Red Ginseng (3 g/day; n = 24) or placebo (n = 25) groups for 8 weeks. Tear film stability, fluorescein corneal staining, conjunctival hyperemia, tear production, grade of meibomian gland dysfunction, and dry eye questionnaire (Ocular Surface Disease Index) were evaluated at baseline and on completion of the treatment.ResultsAlmost all patients displayed dry eye symptoms and signs at baseline. After the 8-week intervention, Korean Red Ginseng supplementation significantly improved the tear film stability and total Ocular Surface Disease Index score, as compared to placebo (p < 0.01).ConclusionKorean Red Ginseng supplementation may provide an additional treatment option for dry eye and patients with glaucoma using antiglaucoma eye drops.
We found no association between the previous cataract surgery and increased early/late AMD risk in our representative, large, national patient database. This suggests that increasing age, and not cataract surgery history, is predictive of AMD risk. These findings are limited by cross-sectional study and need to be replicated by other longitudinal observational studies.
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