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https://www.readbyqxmd.com/read/28809685/human-motion-segmentation-via-robust-kernel-sparse-subspace-clustering
#1
Guiyu Xia, Huaijiang Sun, Lei Feng, Guoqing Zhang, Yazhou Liu
Studies on human motion have attracted a lot of attentions. Human motion capture data, which much more precisely records human motion than videos do, has been widely used in many areas. Motion segmentation is an indispensable step for many related applications, but current segmentation methods for motion capture data do not effectively model some important characteristics of motion capture data, such as Riemannian manifold structure and containing non-Gaussian noise. In this paper, we convert the segmentation of motion capture data into a temporal subspace clustering problem...
August 10, 2017: IEEE Transactions on Image Processing: a Publication of the IEEE Signal Processing Society
https://www.readbyqxmd.com/read/28801082/-how-to-videos-improve-residents-performance-of-essential-perioperative-electronic-medical-records-and-clinical-tasks
#2
Veronica Zoghbi, Robert C Caskey, Kristoffel R Dumon, Jacqueline M Soegaard Ballester, Ari D Brooks, Jon B Morris, Daniel T Dempsey
OBJECTIVE: The ability to use electronic medical records (EMR) is an essential skill for surgical residents. However, frustration and anxiety surrounding EMR tasks may detract from clinical performance. We created a series of brief, 1-3 minutes "how to" videos demonstrating 7 key perioperative EMR tasks: booking OR cases, placing preprocedure orders, ordering negative-pressure wound dressing supplies, updating day-of-surgery history and physical notes, writing brief operative notes, discharging patients from the postanesthesia care unit, and checking vital signs...
August 8, 2017: Journal of Surgical Education
https://www.readbyqxmd.com/read/28791145/humpback-whales-feed-on-hatchery-released-juvenile-salmon
#3
Ellen M Chenoweth, Janice M Straley, Megan V McPhee, Shannon Atkinson, Steve Reifenstuhl
Humpback whales are remarkable for the behavioural plasticity of their feeding tactics and the diversity of their diets. Within the last decade at hatchery release sites in Southeast Alaska, humpback whales have begun exploiting juvenile salmon, a previously undocumented prey. The anthropogenic source of these salmon and their important contribution to local fisheries makes the emergence of humpback whale predation a concern for the Southeast Alaska economy. Here, we describe the frequency of observing humpback whales, examine the role of temporal and spatial variables affecting the probability of sighting humpback whales and describe prey capture behaviours at five hatchery release sites...
July 2017: Royal Society Open Science
https://www.readbyqxmd.com/read/28780633/lvc-timing-in-infant-pig-swallowing-and-the-effect-of-safe-swallowing
#4
Andrew Gross, Jocelyn Ohlemacher, Rebecca German, Francois Gould
Recurrent laryngeal nerve (RLN) injury in neonates, a complication of head and neck surgeries, leads to increased aspiration risk and swallowing dysfunction. The severity of resulting sequelae range from morbidity, such as aspiration pneumonia, to mortality from infection and failure to thrive. The timing of airway protective events including laryngeal vestibule closure (LVC) is implicated in aspiration. We unilaterally transected the RLN in an infant pig model to observe changes in the timing of swallowing kinematics with lesion and aspiration...
August 5, 2017: Dysphagia
https://www.readbyqxmd.com/read/28772349/the-effects-of-multiple-anesthetic-episodes-on-equine-recovery-quality
#5
J P Platt, B T Simon, M Coleman, E A Martinez, M A Lepiz, A E Watts
BACKGROUND: Although rare, 70% of equine fatalities during recovery from general anaesthesia (GA) are due to catastrophic fractures from poor recovery quality. OBJECTIVE: To determine the effect of repeated GA recovery on GA recovery quality. STUDY DESIGN: Experimental blinded trial. METHODS: Eight adult horses underwent six GA events on sevoflurane for distal limb MRI examination over a 14-week period. Prior to GA recovery, xylazine was administered...
August 3, 2017: Equine Veterinary Journal
https://www.readbyqxmd.com/read/28768747/how-innate-is-locomotion-in-precocial-animals-a-study-on-the-early-development-of-spatio-temporal-gait-variables-and-gait-symmetry-in-piglets
#6
Charlotte Vanden Hole, Jana Goyens, Sara Prims, Erik Fransen, Miriam Ayuso Hernando, Steven Van Cruchten, Peter Aerts, Chris Van Ginneken
Locomotion is one of the most important ecological functions in animals. Precocial animals, such as pigs, are capable of independent locomotion shortly after birth. This raises the question whether coordinated movement patterns and the underlying muscular control in these animals is fully innate or whether there still exists a rapid maturation. We addressed this question by studying gait development in neonatal pigs through the analysis of spatio-temporal gait characteristics during locomotion at self-selected speed...
August 1, 2017: Journal of Experimental Biology
https://www.readbyqxmd.com/read/28743453/pregnane-x-receptor-deletion-modifies-recognition-memory-and-electroencephalographic-activity
#7
Badreddine Boussadia, Laila Lakhal, Laurence Payrastre, Chaitali Ghosh, Jean-Marc Pascussi, Giuseppe Gangarossa, Nicola Marchi
Nuclear receptors (NR) are emerging as key players in the central nervous system (CNS) with reported implications in physiological and pathophysiological conditions. While a number of NR has been studied, it is unknown whether invalidation of the pregnane xenobiotic receptor (PXR, NR1I2) corresponds to neurological modifications in the adult brain. PXR(-/-) C57BL/6J and wild-type mice were used to investigate: (i) recognition memory, motor coordination, and anxiety-like behaviors; (ii) longitudinal video-electroencephalographic (EEG) recordings and frequency wave analysis; (iii) neurovascular structures by histological evaluation and expression of the cerebrovascular tight junctions ZO1 and CLDN5...
July 23, 2017: Neuroscience
https://www.readbyqxmd.com/read/28739061/communication-between-postdelivery-mothers-in-the-pacu-and-newborns-in-israel
#8
Sahar Qoussine, Julie Benbenishty, Sara Penso, Itzik Kara, Olga Potasinko, Yulia Lerman
BACKGROUND: Perioperative, maternity, and newborn nurses discovered a solution using modern technology to facilitate earlier "connection" between postcesarean section mothers and their newborns using televised video conference (VC) or telemedicine. Videoconferencing used as a support in cases of separation after childbirth can facilitate a first "meeting" closer to the time of birth. AIM: The aim of this study was to design and validate the use of video conferencing to facilitate "bonding" between postdelivery cesarean delivery mothers who are separated from their infants...
August 2017: Journal of Perianesthesia Nursing: Official Journal of the American Society of PeriAnesthesia Nurses
https://www.readbyqxmd.com/read/28733769/communication-for-coordination-gesture-kinematics-and-conventionality-affect-synchronization-success-in-piano-duos
#9
Laura Bishop, Werner Goebl
Ensemble musicians often exchange visual cues in the form of body gestures (e.g., rhythmic head nods) to help coordinate piece entrances. These cues must communicate beats clearly, especially if the piece requires interperformer synchronization of the first chord. This study aimed to (1) replicate prior findings suggesting that points of peak acceleration in head gestures communicate beat position and (2) identify the kinematic features of head gestures that encourage successful synchronization. It was expected that increased precision of the alignment between leaders' head gestures and first note onsets, increased gesture smoothness, magnitude, and prototypicality, and increased leader ensemble/conducting experience would improve gesture synchronizability...
July 21, 2017: Psychological Research
https://www.readbyqxmd.com/read/28723957/brain-synchronization-during-perception-of-facial-emotional-expressions-with-natural-and-unnatural-dynamics
#10
Dionysios Perdikis, Jakob Volhard, Viktor Müller, Kathrin Kaulard, Timothy R Brick, Christian Wallraven, Ulman Lindenberger
Research on the perception of facial emotional expressions (FEEs) often uses static images that do not capture the dynamic character of social coordination in natural settings. Recent behavioral and neuroimaging studies suggest that dynamic FEEs (videos or morphs) enhance emotion perception. To identify mechanisms associated with the perception of FEEs with natural dynamics, the present EEG (Electroencephalography)study compared (i) ecologically valid stimuli of angry and happy FEEs with natural dynamics to (ii) FEEs with unnatural dynamics, and to (iii) static FEEs...
2017: PloS One
https://www.readbyqxmd.com/read/28711151/intelligent-cooperation-a-framework-of-pedagogic-practice-in-the-operating-room
#11
Gary Sutkin, Eliza B Littleton, Steven L Kanter
BACKGROUND: Surgeons who work with trainees must address their learning needs without compromising patient safety. METHODS: We used a constructivist grounded theory approach to examine videos of five teaching surgeries. Attending surgeons were interviewed afterward while watching cued videos of their cases. Codes were iteratively refined into major themes, and then constructed into a larger framework. RESULTS: We present a novel framework, Intelligent Cooperation, which accounts for the highly adaptive, iterative features of surgical teaching in the operating room...
July 1, 2017: American Journal of Surgery
https://www.readbyqxmd.com/read/28706740/action-video-game-experience-related-to-altered-large-scale-white-matter-networks
#12
Diankun Gong, Weiyi Ma, Jinnan Gong, Hui He, Li Dong, Dan Zhang, Jianfu Li, Cheng Luo, Dezhong Yao
With action video games (AVGs) becoming increasingly popular worldwide, the cognitive benefits of AVG experience have attracted continuous research attention over the past two decades. Research has repeatedly shown that AVG experience can causally enhance cognitive ability and is related to neural plasticity in gray matter and functional networks in the brain. However, the relation between AVG experience and the plasticity of white matter (WM) network still remains unclear. WM network modulates the distribution of action potentials, coordinating the communication between brain regions and acting as the framework of neural networks...
2017: Neural Plasticity
https://www.readbyqxmd.com/read/28649951/video-motion-analysis-in-live-coronary-angiography-differentiates-levels-of-experience-and-provides-a-novel-method-of-skill-assessment
#13
Alexander Eric Rolls, Celia Riga, Sybghat Rahim, Danail Stoyanov, Isabelle Van Herzeele, Ghada Mikhail, Mohamad Hamady, Nick Cheshire, Colin Bicknell
AIMS: Video-motion analysis (VMA) uses fluoroscopic sequences to derive on catheter and guide-wire movement, and is able to calculate 2D catheter-tip path-length (PL) on the basis of frame-by-frame pixel coordinates. The objective of this study was to validate VMA in coronary angiography as a method of skill assessment. METHODS AND RESULTS: 47 coronary interventions performed by 10 low- (<1000 cases; group A), 5 medium- (1000-4000; group B) and 6 high- (>4000; group C) experience- volume cardiologists were prospectively recorded and analysed using this software...
June 27, 2017: EuroIntervention
https://www.readbyqxmd.com/read/28641713/assessment-tools-for-use-during-anesthesia-centric-pediatric-advanced-life-support-training-and-evaluation
#14
Scott C Watkins, Paul J Nietert, Elisabeth Hughes, Eric T Stickles, Tracy E Wester, Matthew D McEvoy
BACKGROUND: Pediatric perioperative cardiac arrests are rare events that require rapid, skilled and coordinated efforts to optimize outcomes. We developed an assessment tool for assessing clinician performance during perioperative critical events termed Anesthesia-centric Pediatric Advanced Life Support (A-PALS). Here, we describe the development and evaluation of the A-PALS scoring instrument. METHODS: A group of raters scored videos of a perioperative team managing simulated events representing a range of scenarios and competency...
June 2017: American Journal of the Medical Sciences
https://www.readbyqxmd.com/read/28638354/investigating-team-coordination-in-baseball-using-a-novel-joint-decision-making-paradigm
#15
Rob Gray, Nancy J Cooke, Nathan J McNeese, Jaimie McNabb
A novel joint decision making paradigm for assessing team coordination was developed and tested using baseball infielders. Balls launched onto an infield at different trajectories were filmed using four video cameras that were each placed at one of the typical positions of the four infielders. Each participant viewed temporally occluded videos for one of the four positions and were asked to say either "ball" if they would attempt to field it or the name of the bag that they would cover. The evaluation of two experienced coaches was used to assign a group coordination score for each trajectory and group decision times were calculated...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28629611/sentinel-lymph-node-mapping-in-minimally-invasive-surgery-role-of-imaging-with-color-segmented-fluorescence-csf
#16
Maite I Lopez Labrousse, Michael Frumovitz, M Guadalupe Patrono, Pedro T Ramirez
OBJECTIVE: Sentinel lymph node mapping, alone or in combination with pelvic lymphadenectomy, is considered a standard approach in staging of patients with cervical or endometrial cancer [1-3]. The goal of this video is to demonstrate the use of indocyanine green (ICG) and color-segmented fluorescence when performing lymphatic mapping in patients with gynecologic malignancies. METHODS: Injection of ICG is performed in two cervical sites using 1mL (0.5mL superficial and deep, respectively) at the 3 and 9 o'clock position...
June 16, 2017: Gynecologic Oncology
https://www.readbyqxmd.com/read/28619422/joint-engagement-in-infants-and-its-relationship-to-their-visual-impairment-measurements
#17
Andrea Urqueta Alfaro, Valerie S Morash, Daisy Lei, Deborah Orel-Bixler
Coordination of attention between a social partner and an external focus of shared interest, called joint engagement, is associated with positive developmental outcomes such as better language, socio-emotional, and theory of mind skills in sighted infants. Current measures of joint engagement rely on an infant's visual behaviors, making it difficult to study joint engagement in infants with low or no vision. In a naturalistic observational study, 20 infants with various levels of visual impairments - mean ages: 1...
June 12, 2017: Infant Behavior & Development
https://www.readbyqxmd.com/read/28600111/do-active-video-games-benefit-the-motor-skill-development-of-non-typically-developing-children-and-adolescents-a-systematic-review
#18
REVIEW
Zoey E Page, Stephanie Barrington, Jacqueline Edwards, Lisa M Barnett
OBJECTIVES: The use of interactive video gaming, known as 'exergames' or 'active video games (AVG)' may provide an opportunity for motor skill development. Youth with non-typical patterns of development may have deficits in gross motor skill capacities and are therefore an intervention target. The aim was to determine the effectiveness of AVG use on motor skill development in non-typically developing children and adolescents. DESIGN: Review article. METHODS: The PRISMA protocol was used to conduct a systematic review of EBSCOhost, Embase, Gale Cengage, Informit, Ovid, ProQuest, PubMed, Scopus and Web of Science databases...
May 18, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/28598948/causes-for-pauses-during-simulated-pediatric-cardiac-arrest
#19
David Oren Kessler, Dawn Taylor Peterson, Alexis Bragg, Yiqun Lin, John Zhong, Jonathan Duff, Mark Adler, Linda Brown, Farhan Bhanji, Jennifer Davidson, David Grant, Adam Cheng
OBJECTIVES: Pauses in cardiopulmonary resuscitation negatively impact clinical outcomes; however, little is known about the contributing factors. The objective of this study is to determine the frequency, duration, and causes for pauses during cardiac arrest. DESIGN: This is a secondary analysis of video data collected from a prospective multicenter trial. Twenty-six simulated pediatric cardiac arrest scenarios each lasting 12 minutes in duration were analyzed by two independent reviewers to document events surrounding each pause in chest compressions...
August 2017: Pediatric Critical Care Medicine
https://www.readbyqxmd.com/read/28587738/important-non-technical-skills-in-video-assisted-thoracoscopic-surgery-lobectomy-team-perspectives
#20
Kirsten Gjeraa, Anna S Mundt, Lene Spanager, Henrik J Hansen, Lars Konge, René H Petersen, Doris Østergaard
BACKGROUND: Safety in the operating room is dependent on the team's non-technical skills. The importance of non-technical skills appears to be different for minimally invasive surgery as compared with open surgery. The aim of this study was to identify which non-technical skills are perceived by team members to be most important for patient safety, in the setting of video-assisted thoracoscopic surgery (VATS) lobectomy. METHODS: This was an explorative, semistructured interview-based study with 21 participants from all four thoracic surgery centers in Denmark that perform VATS lobectomy...
July 2017: Annals of Thoracic Surgery
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