Graph-based Semi-Supervised Learning in Acoustic Modeling for Automatic Speech Recognition

Thesis (Ph.D.)--University of Washington, 2016-06

Medical student radiology training: What are the objectives for contemporary medical practice?

Rationale and Objectives. The authors attempt to provide a set of objectives for medical student training in radiology for contemporary medical practice. Materials and Methods. A questionnaire containing a list of educational objectives was sent to 32 radiologists in charge of medical student training in radiology at accredited residency programs in Australia and New Zealand. The importance of including each preselected objective in the curriculum was measured by respondents' agreement or disagreement on a scale of 1-6. Opportunity also was given to respondents to suggest objectives other than those presented on the questionnaire. Results. Twenty of the 32 questionnaires were returned, and a set of educational objectives was established based on the responses. The objectives were ranked in importance according to the mean score assigned to each objective by the respondents. Conclusion. This new set of educational objectives for medical student radiology training reflects recent changes in radiologic and medical practice and points to potential future developments.

Optimising exercise training in peripheral arterial disease

Peripheral arterial disease (PAD) is an obstructive condition where the flow of blood through peripheral arteries is impeded. During periods of increased oxygen demand (e.g. during exercise), peripheral limb ischaemia occurs, resulting in the sensation of muscle pain termed 'claudication'. As a result of claudication, subjects' ability to exercise is greatly reduced affecting their quality of life. Although many treatment options for patients with PAD exist, exercise training is an effective and low-cost means of improving functional ability and quality of life. Currently, there are limited specific recommendations to assist the exercise prescription and programming of these individuals. This review summarises data from 28 exercise training studies conducted in patients with PAD and formulates recommendations based on their results. Exercise training for patients with PAD should involve three training sessions per week comprising 45 minutes of intermittent treadmill walking in a supervised environment for a time period of 20 weeks or more. Encouragement and direction is given to further research aimed at investigating the effectiveness of training programmes in these patients.

Accessible Internet training package helps people with aphasia cross the digital divide

Background : The Internet is a source of information, communication, and leisure opportunities for people with aphasia. However, accessible training is one of several barriers for people with aphasia in using the Internet. Aims : This study developed and trialled special aphasia-friendly Internet training materials for people with aphasia. Methods & Procedures : A total of 20 people with aphasia were matched with volunteer tutors. The tutor-student pairs met for six lessons. Pre- and post-test Internet skills assessments were conducted and attitudinal questionnaires were completed. The training materials were based on Microsoft Internet Explorer 5.5 and consisted of a tutor's manual and a manual for the Internet student with aphasia. These materials are available as a free download from: http://www.shrs.uq.edu.au/cdaru/aphasiagroups/ Outcomes & Results : Significant differences between pre and post scores were found and participants reached a range of levels of independence following the training. The majority reported favourable outcomes. Conclusions. Results indicated that it was possible for people with aphasia to learn to use the Internet when they were taught in a one-to-one teaching situation with the use of accessible training manuals.

Prospective memory rehabilitation for adults with traumatic brain injury: A compensatory training programme

Primary objective: To describe a prospective memory rehabilitation programme based on a compensatory training approach and report the results of three case studies. Research design: Programme evaluation using pre-and post-intervention assessments and telephone follow-up. Methods and procedures: Three participants with traumatic brain injury completed 8 weeks of training with 1 - 2 hour individual sessions. Assessments were formal prospective memory assessment, self-report and measures of diary use. Experimental interventions: Intervention aimed to identify potential barriers, establish self-awareness of memory deficits, introduce a customized compensatory tool, a cueing system and organizational strategies. A significant other was involved in training to assist generalization. Main outcomes and results: All three participants improved on formal prospective memory assessment and demonstrated successful diary use after the programme. Self-report of prospective memory failure fluctuated and may reflect increased self-awareness. Conclusion: A compensatory approach may be useful in improving prospective memory performance following TBI.

An Internet training intervention for people with traumatic brain injury: Barriers and outcomes

Primary objective: To test whether people with cognitive-linguistic impairments following traumatic brain injury could learn to use the Internet using specialized training materials. Research design: Pre-post test design. Methods and procedures: Seven participants were each matched with a volunteer tutor. Basic Internet skills were taught over six lessons using a tutor's manual and a student manual. Instructions used simple text and graphics based on Microsoft Internet Explorer 5.5. Students underwent Internet skills assessments and interviews pre- and post-training. Tutors completed a post-training questionnaire. Main outcomes and results: Six of seven participants reached moderate-to-high degrees of independence. Literacy impairment was an expected training barrier; however, cognitive impairments affecting concentration, memory and motivation were more significant. Conclusions: Findings suggest that people with cognitive-linguistic impairments can learn Internet skills using specialized training materials. Participants and their carers also reported positive outcomes beyond the acquisition of Internet skills.