Human-like hopping in machines : Feedback- versus feed-forward-controlled motions.

Human-like hopping in machines : Feedback- versus feed-forward-controlled motions. Biol Cybern. 2018 Oct 28;: Authors: Oehlke J, Beckerle P, Seyfarth A, Sharbafi MA Abstract Template models of legged locomotion are powerful tools for gait analysis, but can also inspire robot design and control. In this paper, a spring-loaded inverted pendulum (SLIP) model is employed to control vertical hopping of a 2-segmented legged robot. Feed-forward and bio-inspired virtual model control using the SLIP model are compared. In the latter approach, the feedback control emulates a virtual spring between hip and foot. The results demonstrate similarity of human and robot hopping. Moreover, the feedback control proves to simplify and improve hopping control. It yields better perturbation recovery and locomotion adaptation and is even easier to tune. Thus, human-like hopping is achievable using a rather simple template-based controller, which ensures the required performance, robustness and versatility. PMID: 30370464 [PubMed - as supplied by publisher]
Source: Biological Cybernetics - Category: Science Authors: Tags: Biol Cybern Source Type: research

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ConclusionsLVRS is an effective operation with overall improvement in functional status and quality of life among appropriately selected patients.
Source: The Annals of Thoracic Surgery - Category: Cardiovascular & Thoracic Surgery Source Type: research
Publication date: Available online 17 November 2018Source: The Annals of Thoracic SurgeryAuthor(s): Kimberly E. McHugh, William T. Mahle, Matthew A. Hall, Mark A. Scheurer, Michael-Alice Moga, John Triedman, Susan C. Nicolson, Venugopal Amula, David S. Cooper, Marcus Schamberger, Michael Wolf, Lara Shekerdemian, Kristin M. Burns, Kathleen E. Ash, Dustin M. Hipp, Sara K. Pasquali, Pediatric Heart Network InvestigatorsAbstractBackgroundThe Pediatric Heart Network Collaborative Learning Study (PHN CLS) increased early extubation rates after infant Tetralogy of Fallot (TOF) and coarctation (CoA) repair across participating sit...
Source: The Annals of Thoracic Surgery - Category: Cardiovascular & Thoracic Surgery Source Type: research
ConclusionsTreatment with warfarin or aspirin both lead to similar outcomes after surgical bAVR. Combining aspirin with warfarin may lead to a small decrease in thromboembolism and mortality but is accompanied by increased bleeding. For TAVR patients, aspirin is equivalent to DAPT for reducing thromboembolism and mortality, with a possible decrease in bleeding.
Source: The Annals of Thoracic Surgery - Category: Cardiovascular & Thoracic Surgery Source Type: research
Publication date: Available online 17 November 2018Source: The Annals of Thoracic SurgeryAuthor(s): Hideki Tsubota, Genichi Sakaguchi, Yoshio Arai, Jun Iida, Akira Marui
Source: The Annals of Thoracic Surgery - Category: Cardiovascular & Thoracic Surgery Source Type: research
ConclusionsIn patients with significant bleeding following cardiac surgery, PCC administration seems to be more effective than FFP in reducing perioperative blood transfusions. No additional risks of thromboembolic events or other adverse reactions were observed. Randomized controlled trials are needed to definitively establish the safety of PCC in cardiac surgery.
Source: The Annals of Thoracic Surgery - Category: Cardiovascular & Thoracic Surgery Source Type: research
Publication date: Available online 17 November 2018Source: The Annals of Thoracic SurgeryAuthor(s): Michael C. Sinclair
Source: The Annals of Thoracic Surgery - Category: Cardiovascular & Thoracic Surgery Source Type: research
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Source: The Annals of Thoracic Surgery - Category: Cardiovascular & Thoracic Surgery Source Type: research
CONCLUSIONS: These results highlight a key role of the nucleus accumbens in cigarette craving in schizophrenia and suggest that the subjective valuation of cigarette cues is increased in this population. Similar neurofunctional studies on cravings for other psychoactive substances in schizophrenia are warranted. PMID: 30445892 [PubMed - as supplied by publisher]
Source: Journal of Dual Diagnosis - Category: Addiction Tags: J Dual Diagn Source Type: research
CONCLUSIONS: Polysubstance use, conceptualized within the multimorbidity perspective, is associated with increased severity of PTSD symptoms among veterans with dual diagnoses requiring complex interventions, the evaluation of which will require innovative trial designs. PMID: 30444189 [PubMed - as supplied by publisher]
Source: Journal of Dual Diagnosis - Category: Addiction Tags: J Dual Diagn Source Type: research
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Source: Meat Science - Category: Food Science Source Type: research
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