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Stroke commonly results in gait deficits which impacts functional ambulation and quality of life. Robotic exoskeletons (RE) for overground walking are devices that are programmable to provide high dose and movement-impairment specific assistance thus offering new rehabilitation possibilities for recovery progression in individuals post stroke. The purpose of this investigation is to present preliminary utilization data in individuals with acute and chronic stroke after walking overground with an RE. Secondary analysis on a subset of individuals is presented to understand the mechanistic changes due to RE overground walking. Thirty-eight participants with hemiplegia secondary to stroke were enrolled in a clinical trial conducted at eight rehabilitation centers. Data is presented for four sessions of overground walking in the RE over the course of 2 weeks. Participants continued their standard of care if they had any ongoing therapy at the time of study enrollment. Gait speed during the 10 Meter Walk Test, Gait deviations and the Functional Ambulation Category (FAC) data were collected before (baseline) and after (follow-up) the RE walking sessions. Walking speed significantly increased between baseline and follow-up for participants in the chronic (p p < 0.05) stage of stroke recovery. FAC level significantly improved (p < 0.05) and there were significantly fewer (p < 0.05) gait deviations observed for participants in the acute stages of stroke recovery between baseline and follow-up. Secondary analysis on a subset of eight participants indicated that after four sessions of overground walking with the RE, the participants significantly improved their spatial symmetry. The walk time, step count and ratio of walk time to up time increased from first session to the last session for participants in the chronic and acute stages of stroke. The RE was effectively utilized for overground walking for individuals with acute and chronic stroke with varying severity levels. The results demonstrated an increase in walking speed, improvement in FAC and a decrease in gait deviations (from baseline to follow-up) after four sessions of overground walking in the RE for participants. In addition, preliminary data indicated that spatial symmetry and step length also improved after utilization of an RE for overground walking.

Chest X-ray imaging technology used for the early detection and screening of COVID-19 pneumonia is both accessible worldwide and affordable compared to other non-invasive technologies. Additionally, deep learning methods have recently shown remarkable results in detecting COVID-19 on chest X-rays, making it a promising screening technology for COVID-19. Deep learning relies on a large amount of data to avoid overfitting. While overfitting can result in perfect modeling on the original training dataset, on a new testing dataset it can fail to achieve high accuracy. In the image processing field, an image augmentation step (i.e., adding more training data) is often used to reduce overfitting on the training dataset, and improve prediction accuracy on the testing dataset. In this paper, we examined the impact of geometric augmentations as implemented in several recent publications for detecting COVID-19. We compared the performance of 17 deep learning algorithms with and without different geometric augmentations. We empirically examined the influence of augmentation with respect to detection accuracy, dataset diversity, augmentation methodology, and network size. Contrary to expectation, our results show that the removal of recently used geometrical augmentation steps actually improved the Matthews correlation coefficient (MCC) of 17 models. The MCC without augmentation (MCC = 0.51) outperformed four recent geometrical augmentations (MCC = 0.47 for Data Augmentation 1, MCC = 0.44 for Data Augmentation 2, MCC = 0.48 for Data Augmentation 3, and MCC = 0.49 for Data Augmentation 4). When we retrained a recently published deep learning without augmentation on the same dataset, the detection accuracy significantly increased, with a χ2McNemar's statistic=163.2χMcNemar′s statistic2=163.2 and a p-value of 2.23 × 10−37. This is an interesting finding that may improve current deep learning algorithms using geometrical augmentations for detecting COVID-19. We also provide clinical perspectives on geometric augmentation to consider regarding the development of a robust COVID-19 X-ray-based detector., Frontiers in Medicine, 8, ISSN:2296-858X

When American architects were arguing the pros and cons of European modernism, Wright presented a design for the Capital Journal building in Salem, Oregon, that was in response to the European's abstract, stark, boxes. Wright's letter forwarding the design drawings to his client George Putnam, published here for the first time, offers a rare glimpse into Wright's methodology for a particular design. In this case we can better understand the architectonics of the proposal, in particular the functional character of glass.

The profession of social work has a long history of work with "clients" with disabilities, but unfortunately, this history often has not included strong advocacy for their rights and creating a place as colleagues within Schools of Social Work (Dunn, Hanes and MacDonald, 2003). From a critical disability perspective and a view of disability as being socially constructed, the profession and its educational institutions need to rethink their approach to students, faculty and staff with disabilities (May & Raske, 2005). Best practices in accessibility, accommodation and inclusivity will be explored within Canadian Schools of Social Work. Knowledge shared in this article was derived from a critical review of the literature, a survey of Schools of Social Work in Canada (Dunn, Hanes, Hardie, and MacDonald, 2006), and a National Best Practices conference (Dunn, Hanes, Hardie, Leslie, and MacDonald, J, 2004). Disability inclusion within Schools of Social Work is explored in five main areas: 1) recruitment and admissions; 2) accommodation; 3) curriculum; 4) field placements; and 5) retention, graduation and meaningful employment. While the specific focus is on social work education the principles and practices can be applied to other disciplines within the academy and beyond.

In June 1937 Frank Lloyd Wright attended the First All-Union Congress of Soviet Architects held in Moscow. His visit at the request of the Union of Soviet Architects is known mainly, in fact almost exclusively as a result of the American's own frenetic promotions, including his autobiography. The nature of his visit has not heretofore been objectively reported. As well, a paper he delivered has remained obscure in the absence of knowledge.

WALTER BURLEY GRIFFIN'S tenure as Federal Capital Director of Design and Construction for Australia's young capital was to last from October 1913 until December I920: over seven years discounting a six month leave of absence during I913-I914. From the latter part of I915 to the expiration of his appointment he was the object of censorious criticism and, at various moments and with ultimate success, of demands for his replacement by a committee. There was a continuous series of Parliamentary commissions and committees, dubious counter-proposals to investigate, open hearings, months as a witness, and a Royal Commission from which he rose exonerated but not unscathed. Princi

(1975). H. Allen Brooks, The Prairie School, Frank Lloyd Wright and His Midwest Contemporaries. Art Journal: Vol. 34, No. 3, pp. 276-278.

This thesis investigates the evolution and implementation of Office of Management and Budget Circular A-109, "Major System Acquisition." The presentation begins with background material illustrating the evolution of acquisition principles incorporated in Circular A-109, particularly the recommendations contained in the Commission on Government Procurement. The policies of Circular A-109 to be followed by executive branch agencies in the acquisition of Major Systems are analyzed in detail as to content and interpretation. Three areas of major change to the Department of Defense and the Department of the Navy acquisition policies and procedures as a result of the implementation of Circular A-109 are presented. The Navy's Shipboard Intermediate Range Combat System Program is examined as one of the first full-scale attempts to implement the Circular A-109 policies. Lessons learned from this initial implementation of Circular A-109 are described in the form of improvements to Major System Acquisition. http://archive.org/details/evolutionndimple1094518117 Lieutenant Commander, United States Navy Approved for public release; distribution is unlimited.

A personalized system of instruction utilizing self-contained text material and combing the principles of autotutorial instruction with modified self-pacing was developed for a course in aircraft performance. The course material, contained in Appendix A, was applied to the aircraft performance portion (six weeks) of a 12 week course in aircraft performance, control and stability taught to 11 students in the Department of Aeronautics at the Naval Postgraduate School, Monterey, California, during the summer quarter of 1976. the course results, summarized n Appendic B and C, tended to confirm the advantages and substantial value of this instruction method. In addition, the course material will be utilized by the Office of Continuing Education, Naval Postgraduate School, Monterey, as its program of offering basic background courses off campus in preparation for graduate study. http://archive.org/details/apersonalizedsys1094518236 Lieutenant Commander, United States Navy Approved for public release; distribution is unlimited.