146,103 research outputs found
Physiotherapy services during the COVID-19 pandemic: a mediated model of physiotherapists’ self-efficacy, tele-physiotherapy role stressors, and motivation to provide tele-physiotherapy
No full textBackground: occupational self-efficacy is a stable predictor for professionals’ motivation to engage with new methods and tasks. Yet, the delivery of tele-physiotherapy (Tele-PT) by physiotherapists (PTs) during the coronavirus disease of 2019 (COVID-19) outbreak without advance training may have had the potential to increase work stress and damage their motivation, regardless of their occupational self-efficacy.Objectives: the present study examined whether the relations between PTs’ overall occupational self-efficacy and motivation to provide Tele-PT was mediated by role stress (i.e. role conflict and ambiguity).Design and Method: between February 4 and April 23, 2021, 150 Israeli PTs completed an online survey that measured their overall occupational self-efficacy, their role stress induced by the provision of Tele-PT, their motivation to provide Tele-PT, and their demographic characteristics.Results: PTs’ overall occupational self-efficacy was positively associated with PTs’ motivation to provide Tele-PT (r= 0.328, p < .01) and fully mediated by role conflict (0.1757, 95% CI = [0.0231, 0.3797]) and by role ambiguity (0.1845, 95% CI = [0.0196, 0.4184]) (components of role stress) caused by the provision of Tele-PT.Conclusions: it is important to investigate the predictors and mediators of the motivation to provide Tele-PT because in the post-COVID-19 era health organizations are likely to adopt many tele-medicine services, and they need to find ways to mitigate perceived challenges
Agonist-antagonist myoneural interface (AMI)
No full textZusammenfassung Das „agonist-antagonist myoneural interface“ (AMI) ist ein innovativer Ansatz zur Rekonstruktion der Propriozeption und zur intuitiveren motorischen Kontrolle nach Gliedmaßenverlust. Es basiert auf der Nachbildung der natürlichen biomechanischen Beziehung zwischen Agonisten- und Antagonistenmuskeln, um dem Prothesennutzer eine bidirektionale Kommunikation zwischen der Prothese und seinem peripheren Nervensystem zu ermöglichen. Neurovaskulär gestielte Agonisten-Antagonisten-Muskelpaare werden durch eine adaptierte Sehnennaht in einem Gleitlager miteinander verbunden, sodass Spannungsänderungen während der Bewegung ein propriozeptives Feedback erzeugen. Dieses Feedback wird über afferente Nervenbahnen zum Zentralnervensystem weitergeleitet, wodurch eine Wahrnehmung der Gelenkposition des ursprünglich von dem Muskelpaar geführten Gelenks ermöglicht und gleichermaßen die Prothesensteuerung erleichtert wird. Das AMI scheint eine Integration der Prothese in die bestehenden neuronalen Netzwerke zu ermöglichen und verbessert sowohl die Steuerung der Prothese als auch die sensorische Diskriminierung. Im Vergleich zur Standardoperationstechnik (Myodese oder Myoplastik) mit einer nahezu rein mechanischen Transposition der residuellen Stumpfmuskeln reduziert AMI die kognitive Belastung während der Prothesennutzung und vermittelt ein natürlicheres Bewegungsgefühl, was das Embodiment positiv beeinflusst. Insgesamt markiert AMI einen bedeutenden Fortschritt in der Mensch-Maschine-Integration und stellt einen vielversprechenden Ansatz, um die Lebensqualität von Menschen mit einem Gliedmaßenverlust nachhaltig zu verbessern, dar.Abstract The agonist-antagonist myoneural interface (AMI) is an innovative approach to restoring proprioception and achieving more intuitive motor control following limb loss. This cutting-edge technique replicates the natural biomechanical relationship between agonist and antagonist muscles, enabling bidirectional communication between a prosthesis and the user’s peripheral nervous system. Through the transposition of neurovascularly pedicled agonist-antagonist muscle pairs, which are reconnected via an adapted tendon suture and positioned within a gliding mechanism, AMI generates proprioceptive feedback during movement. Changes in tension within these muscle pairs produce signals that are transmitted to the central nervous system via afferent nerve pathways, enabling users to perceive the joint position of the limb that was originally governed by the muscle pair. This enhanced sensory input significantly facilitates control of the prosthesis. The AMI appears to enable an integration of the prosthesis into the body’s existing neural networks and improve motor control of the prosthesis and the sensory discrimination. Compared to traditional surgical techniques (myodesis or myoplasty) with a purely mechanical transposition of residual stump muscles, AMI reduces the cognitive burden during the use of the prosthesis and delivers a more natural sense of movement, fostering a profound sense of embodiment. In summary, AMI represents a significant leap forward in human-machine integration. By enhancing both the functionality and user experience of prosthetic devices, it provides a very promising transformative solution for sustainable improvement of the quality of life for individuals living with limb loss.Zusammenfassung Das „agonist-antagonist myoneural interface“ (AMI) ist ein innovativer Ansatz zur Rekonstruktion der Propriozeption und zur intuitiveren motorischen Kontrolle nach Gliedmaßenverlust. Es basiert auf der Nachbildung der natürlichen biomechanischen Beziehung zwischen Agonisten- und Antagonistenmuskeln, um dem Prothesennutzer eine bidirektionale Kommunikation zwischen der Prothese und seinem peripheren Nervensystem zu ermöglichen. Neurovaskulär gestielte Agonisten-Antagonisten-Muskelpaare werden durch eine adaptierte Sehnennaht in einem Gleitlager miteinander verbunden, sodass Spannungsänderungen während der Bewegung ein propriozeptives Feedback erzeugen. Dieses Feedback wird über afferente Nervenbahnen zum Zentralnervensystem weitergeleitet, wodurch eine Wahrnehmung der Gelenkposition des ursprünglich von dem Muskelpaar geführten Gelenks ermöglicht und gleichermaßen die Prothesensteuerung erleichtert wird. Das AMI scheint eine Integration der Prothese in die bestehenden neuronalen Netzwerke zu ermöglichen und verbessert sowohl die Steuerung der Prothese als auch die sensorische Diskriminierung. Im Vergleich zur Standardoperationstechnik (Myodese oder Myoplastik) mit einer nahezu rein mechanischen Transposition der residuellen Stumpfmuskeln reduziert AMI die kognitive Belastung während der Prothesennutzung und vermittelt ein natürlicheres Bewegungsgefühl, was das Embodiment positiv beeinflusst. Insgesamt markiert AMI einen bedeutenden Fortschritt in der Mensch-Maschine-Integration und stellt einen vielversprechenden Ansatz, um die Lebensqualität von Menschen mit einem Gliedmaßenverlust nachhaltig zu verbessern, dar.Abstract The agonist-antagonist myoneural interface (AMI) is an innovative approach to restoring proprioception and achieving more intuitive motor control following limb loss. This cutting-edge technique replicates the natural biomechanical relationship between agonist and antagonist muscles, enabling bidirectional communication between a prosthesis and the user’s peripheral nervous system. Through the transposition of neurovascularly pedicled agonist-antagonist muscle pairs, which are reconnected via an adapted tendon suture and positioned within a gliding mechanism, AMI generates proprioceptive feedback during movement. Changes in tension within these muscle pairs produce signals that are transmitted to the central nervous system via afferent nerve pathways, enabling users to perceive the joint position of the limb that was originally governed by the muscle pair. This enhanced sensory input significantly facilitates control of the prosthesis. The AMI appears to enable an integration of the prosthesis into the body’s existing neural networks and improve motor control of the prosthesis and the sensory discrimination. Compared to traditional surgical techniques (myodesis or myoplasty) with a purely mechanical transposition of residual stump muscles, AMI reduces the cognitive burden during the use of the prosthesis and delivers a more natural sense of movement, fostering a profound sense of embodiment. In summary, AMI represents a significant leap forward in human-machine integration. By enhancing both the functionality and user experience of prosthetic devices, it provides a very promising transformative solution for sustainable improvement of the quality of life for individuals living with limb loss
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Revealing otherness : a comparative examination of French and English medieval hagiographical romance
No full textThis dissertation is an analysis of three hagiographical romances written in France around the thirteenth century and later adapted into English. The texts are Ami et Amile, Robert le Diable and Florence de Rome and their English counterparts Amis and Amiloun, Sir Gowther and Le bone Florence of Rome. All six texts have been understudied, with the possible exception of Ami et Amile. They are linked in many ways, some thematic, some generic. They have all caused confusion and arguments as to what their genre is (Epic? Saint’s life? Romance? A combination of two or three genres?) and feature the defining notions of otherness, exile and penance. In spite of appearances, this work shows that the French and English authors prove to have quite different takes on the same stories. Drawing on Lacanian psychoanalysis and postcolonial theory, the chapters discuss the presence of otherness in the texts, in all its manifestations and offer new readings of the poems as well as possible solutions to the difficult question of genre in the middle ages. The many shapes taken by the other/Other (physical and emotional otherness; hybridity and gender) are exposed and utilised to uncover the meanings and ideological complexities of these multidimensional poems. This approach also reveals that the English texts propose a more conservative reading of common material than did their French originals. It is therefore suggested that the generic tendencies of these medieval texts be correlated with the importance of the Other in the respective redactions of the tales. Reading without consideration of these two factors produces a lopsided comparative view, while reading with both in mind leads to a better appreciation of rewriting and adaptation in the Middle Ages
Are There Options to Prevent Early Occurring Deaths in Acute Myocardial Infarction: Prospective Evaluation of All < 24 h In-Hospital Deaths, 2004-2006-The MONICA/KORA Augsburg Infarction Registry
No full textObjectives: To provide valid clinical data of early in-hospital deaths with presumed acute myocardial infarction (AMI) who are often not included in clinical trials or registries. Methods: From August 2004 to August 2006 all patients (age 25-84 years) dying within 24 h after hospitalization in a large tertiary care academic teaching hospital were screened regarding an underlying cardiovascular cause of death. Results: After validation, 79 out of 1,352 patients remained with a final diagnosis of AMI. Sixty-six percent of these experienced prehospital cardiac arrest or shock. In 37% no resuscitation attempts were performed in-hospital, the most common reason being multimorbidity. Only 23% could be transferred to coronary angiography for revascularisation attempts. An independent panel of clinicians judged that only in one patient would another management strategy have been promising. Of interest, 33% of the deceased patients had typical or atypical chest pain the days before the lethal event. Conclusion: A large percentage of AMI patients who died soon after hospitalization were in critical circulatory state directly before hospitalization. In 37%, in-hospital resuscitation attempts were omitted for understandable reasons. Options for improvement in acute care in the investigated setting were not found. However, in one third of the cases earlier preventive measures might have been reasonable. Copyright (C) 2010 S. Karger AG, Base
AMI for nonlinearity mitigation in O-band transmission
No full textWe utilise the alternate mark inversion (AMI) scheme to mitigate the nonlinearity in O-band transmission. The results after transmission over 60km of SMF show that AMI outperforms the duobinary and on-off keying formats.</p
Is There an Age Pattern in the Treatment of AMI? Evidence from Ontario
No full textIn this article we analyse the rates at which those admitted to hospital with acute myocardial infarction (AMI) receive aggressive treatment, assess how those rates have changed over time, and ask whether there is evidence of age discrepancies. Estimates made on the basis of data from an administrative database that includes discharges from all acute care hospitals in Ontario for selected years, from 1995 to 2005, indicate that there are strong and persistent age patterns in the application of medical technology. Results showed that to be true even after controlling for the higher rates of co-morbidities among older patients and variations across hospitals in practice patterns.treatment of AMI, age pattern
New metrics for meaningful evaluation of informally structured speech retrieval
No full textSearch effectiveness for tasks where the retrieval units are
clearly defined documents is generally evaluated using standard measures such as mean average precision (MAP). However, many practical speech search tasks focus on content within large spoken files lacking defined structure. These data must be segmented into smaller units for search which may only partially overlap with relevant material. We introduce two new metrics for the evaluation of search effectiveness for informally structured speech data: mean average segment precision (MASP) which measures retrieval performance in terms of both content segmentation and ranking with respect to relevance; and mean average segment distance-weighted precision (MASDWP) which takes into account the distance between the start of the relevant segment and the retrieved segment. We demonstrate the eectiveness of these new metrics on a retrieval test collection based on the AMI meeting corpus
Is There an Age Pattern in the Treatment of AMI? Evidence from Ontario
No full textIn this article we analyse the rates at which those admitted to hospital with acute myocardial infarction (AMI) receive aggressive treatment, assess how those rates have changed over time, and ask whether there is evidence of age discrepancies. Estimates made on the basis of data from an administrative database that includes discharges from all acute care hospitals in Ontario for selected years, from 1995 to 2005, indicate that there are strong and persistent age patterns in the application of medical technology. Results showed that to be true even after controlling for the higher rates of co-morbidities among older patients and variations across hospitals in practice patterns.treatment of AMI, age pattern
AMI for Nonlinearity Mitigation in O-Band Transmission
No full textWe utilise the alternate mark inversion (AMI) scheme to mitigate the nonlinearity in O-band transmission. The results after transmission over 60km of SMF show that AMI outperforms the duobinary and on-off keying formats
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