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https://www.readbyqxmd.com/read/29341664/optimal-continuous-variable-quantum-teleportation-with-limited-resources
#1
Pietro Liuzzo-Scorpo, Andrea Mari, Vittorio Giovannetti, Gerardo Adesso
Given a certain amount of entanglement available as a resource, what is the most efficient way to accomplish a quantum task? We address this question in the relevant case of continuous variable quantum teleportation protocols implemented using two-mode Gaussian states with a limited degree of entanglement and energy. We first characterize the class of single-mode phase-insensitive Gaussian channels that can be simulated via a Braunstein-Kimble protocol with nonunit gain and minimum shared entanglement, showing that infinite energy is not necessary apart from the special case of the quantum limited attenuator...
September 22, 2017: Physical Review Letters
https://www.readbyqxmd.com/read/29334569/assessment-of-prehospital-hemorrhage-and-airway-care-using-a-simulation-model
#2
Mariya E Skube, Seth Witthuhn, Kristine Mulier, Bonnie Boucher, Elizabeth Lusczek, Greg J Beilman
BACKGROUND: The quality of prehospital care impacts patient outcomes. Military efforts have focused on training revision and the creation of high fidelity simulation models to address potentially survivable injuries. We sought to investigate the applicability of models emphasizing hemorrhage control and airway management to a civilian population. METHODS: Prehospital healthcare providers (PHPs) undergoing their annual training were enrolled. A trauma scenario was simulated with two modules: hemorrhage control and airway management...
January 12, 2018: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/29326414/-effect-of-debriefing-based-on-the-clinical-judgment-model-on-simulation-based-learning-outcomes-of-end-of-life-care-for-nursing-students-a-non-randomized-controlled-trial
#3
Kyung In Jeong, Ja Yun Choi
PURPOSE: This study was conducted to identify effects of debriefing based on the clinical judgment model for nursing students on their knowledge, skill performance, clinical judgment, self-confidence and learner satisfaction during simulation based end-of-life care (ELC) education. METHODS: Simulation based ELC education was developed in six steps as follows: selection of learning subjects and objects, development of learning tools, a trial run of simulation-based education, students' skill training, and evaluators' training...
December 2017: Journal of Korean Academy of Nursing
https://www.readbyqxmd.com/read/29320912/fostering-transformation-by-hearing-voices-evaluating-a-6-second-low-fidelity-simulation
#4
Brenda Marshall, Julie Bliss, Benjamin Evans, Oksana Dukhan
BACKGROUND: The stigma of psychosis, with the accompanying symptoms of auditory and visual hallucinations, can affect a nurse's ability to provide safe, effective care. Increasing knowledge of the patient's perspective during auditory hallucinations can increase the nurse's ability to be empathetic and engage in a therapeutic alliance. OBJECTIVE: To evaluate the efficacy of a six-second auditory hallucination simulation to increase empathy in preclinical undergraduate nursing students...
January 1, 2018: Journal of the American Psychiatric Nurses Association
https://www.readbyqxmd.com/read/29316347/effect-of-heated-air-blanket-on-the-dispersion-of-squames-in-an-operating-room
#5
X He, S Karra, P Pakseresht, S V Apte, S Elghobashi
High-fidelity, predictive fluid flow simulations of the interactions between the rising thermal plumes from forced air warming blower and the ultraclean ventilation air in an operating (OR) are conducted to explore whether this complex flow can impact the dispersion of squames to the surgical site. A large-eddy simulation (LES), accurately capturing the spatio-temporal evolution of the flow in three-dimensions together with the trajectories of squames, is performed for a realistic OR consisting of an operating table (OT), side tables, surgical lamps, medical staff, and a patient...
January 9, 2018: International Journal for Numerical Methods in Biomedical Engineering
https://www.readbyqxmd.com/read/29306382/diagnostic-radiographers-working-in-the-operating-theatre-an-action-research-project
#6
S Naylor, D Foulkes
INTRODUCTION: Failures in interprofessional communication are well-documented and are an established cause of medical error and negative health outcomes. Socio-historical issues like imbalances in power and status are particularly prevalent in the operating theatre environment, adding complications to interprofessional working. Simulation, used in healthcare education, may impact positively on interprofessional working. METHODS: The aim of this action research study was to develop, pilot and run a simulation experience for Diagnostic Radiography (DRAD) students...
February 2018: Radiography
https://www.readbyqxmd.com/read/29303790/relaxation-before-debriefing-during-high-fidelity-simulation-improves-memory-retention-of-residents-at-three-months-a-prospective-randomized-controlled-study
#7
Marc Lilot, Jean-Noel Evain, Christian Bauer, Jean-Christophe Cejka, Alexandre Faure, Baptiste Balança, Olivia Vassal, Cécile Payet, Bernard Bui Xuan, Antoine Duclos, Jean-Jacques Lehot, Thomas Rimmelé
BACKGROUND: High-fidelity simulation is known to improve participant learning and behavioral performance. Simulation scenarios generate stress that affects memory retention and may impact future performance. The authors hypothesized that more participants would recall three or more critical key messages at three months when a relaxation break was performed before debriefing of critical event scenarios. METHODS: Each resident actively participated in one scenario and observed another...
January 5, 2018: Anesthesiology
https://www.readbyqxmd.com/read/29299526/chicken-thigh-microvascular-training-model-improves-resident-surgical-skills
#8
Francis X Creighton, Allen L Feng, Neerav Goyal, Kevin Emerick, Daniel Deschler
Objectives: Microsurgical techniques are essential for vessel anastomosis in free flap reconstructive surgery. However, teaching these skills intraoperatively is difficult. The chicken thigh microvascular model is a high-fidelity model that has been previously validated to differentiate between skill levels of surgeons. This study aims to determine if this model objectively improves microsurgical skills. Study Design: Validation study. Methods: Thirteen residents were given a tutorial on microvascular anastomosis and asked to perform anastomoses on the microvascular model...
December 2017: Laryngoscope Investigative Otolaryngology
https://www.readbyqxmd.com/read/29299508/elements-of-virtual-temporal-bone-surgery-manipulandum-format-may-be-more-important-to-surgeons-than-haptic-device-force-capabilities
#9
Bertram Unger, Nariman Sepehri, Vivek Rampersad, Justyn Pisa, Michael Gousseau, Jordan B Hochman
Background: Temporal bone simulations are critiqued for poor drill-bone interaction. This project appraises the import of increasing haptic device and manipulandum fidelity on the perceived realism of drilling a virtual temporal bone.Virtual surgical contact forces rely on haptic device fidelity and are transmitted through a manipulandum. With identical software, both device hardware and manipulandum may each contribute to realism. We compare the three degrees of freedom (DOF), 3N Geomagic Touch (3D Systems, SC) to a 6DOF, 5...
December 2017: Laryngoscope Investigative Otolaryngology
https://www.readbyqxmd.com/read/29287843/does-a-two-element-muscle-model-offer-advantages-when-estimating-ankle-plantar-flexor-forces-during-human-cycling
#10
Adrian K M Lai, Allison S Arnold, Andrew A Biewener, Taylor J M Dick, James M Wakeling
Traditional Hill-type muscle models, parameterized using high-quality experimental data, are often "too weak" to reproduce the joint torques generated by healthy adults during rapid, high force tasks. This study investigated whether the failure of these models to account for different types of motor units contributes to this apparent weakness; if so, muscle-driven simulations may rely on excessively high muscle excitations to generate a given force. We ran a series of forward simulations that reproduced measured ankle mechanics during cycling at five cadences ranging from 60 to 140 RPM...
December 15, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/29286943/integrating-simulation-based-learning-into-nursing-education-programs-hybrid-simulation
#11
Vesile Unver, Tulay Basak, Hatice Ayhan, Fatma Ilknur Cinar, Emine Iyigun, Nuran Tosun, Sevinc Tastan, Gulsah Köse
BACKGROUND: Hybrid simulation can be developed with mannequins of any fidelity and tabletop simulators with a standardized patient to create a complex, high-level learning activity. OBJECTIVE: The aim of this study is to analyze the effects of a hybrid simulation technique used with nursing students in a scenario about the emergency setting. METHODS: This one-group quasi-experimental study was carried out with 39 students in Ankara, Turkey, from October to July 2014...
December 22, 2017: Technology and Health Care: Official Journal of the European Society for Engineering and Medicine
https://www.readbyqxmd.com/read/29286827/the-role-of-anxiety-in-simulation-based-dexterity-and-overall-performance-does-it-really-matter
#12
Fatema Dhaif, Georgios Paparoidamis, Michail Sideris, John Hanrahan, Efstratia-Maria Georgopoulou, Ismini Tsagkaraki, Nikolaos Staikoglou, Ferha Saeed, Theodoros Michail, Anastasios Tzavelas, Efstathios Kenanidis, Michael Potoupnis, Eleftherios Tsiridis, Apostolos Papalois
BACKGROUND: Essential Skills in the Management of Surgical Cases (ESMSC) is an international undergraduate surgical masterclass which combines ex vivo, dry lab and high fidelity in vivo simulation-based learning (SBL). It consists of 32 stations of skills-based learning, including open reduction internal fixation (ORIF) of fractures. Current literature suggests early involvement in skills-based learning at the undergraduate level is vital. AIMS: To compare students' dexterity and skills-based performance with demographic and educational background parameters...
December 29, 2017: Journal of Investigative Surgery: the Official Journal of the Academy of Surgical Research
https://www.readbyqxmd.com/read/29280875/teaching-palatoplasty-using-a-high-fidelity-cleft-palate-simulator
#13
Homan Cheng, Dale J Podolsky, David M Fisher, Karen W Wong, H Peter Lorenz, Rohit K Khosla, James M Drake, Christopher R Forrest
BACKGROUND: Cleft palate repair is a challenging procedure for cleft surgeons to teach. A novel high-fidelity cleft palate simulator has been described for surgeon training. This study evaluates the simulator's effect on surgeon procedural confidence and palatoplasty knowledge among learners. METHODS: Plastic surgery trainees attended a palatoplasty workshop consisting of a didactic session on cleft palate anatomy and repair followed by a simulation session. Participants completed a procedural confidence questionnaire and palatoplasty knowledge test immediately before and after the workshop...
January 2018: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/29280634/investigation-of-nascent-base-pair-and-polymerase-behavior-in-the-presence-of-mismatches-in-dna-polymerase-i-using-molecular-dynamics
#14
Andrew Vincent Yeager, Kathryn Humphries, Ellen Farmer, Gene Cline, Billy Miller
Optimizing DNA polymerases for a broad range of tasks requires an understanding of the factors influencing polymerase fidelity, but many details of polymerase behavior remain unknown, especially in the presence of mismatched nascent base pairs. Using molecular dynamics, the large fragment of Bacillus stearothermophilus DNA polymerase I is simulated in the presence of all sixteen possible standard nucleoside triphosphate-template (dNTP-dN) pairs, including four Watson-Crick pairs and twelve mismatches. The pre-catalytic steps of nucleotide addition from nucleotide insertion to immediately preceding catalysis are explored using three starting structures representing different stages of nucleotide addition...
December 27, 2017: Journal of Chemical Information and Modeling
https://www.readbyqxmd.com/read/29277383/gaze-position-modulates-the-effectiveness-of-forward-collision-warnings-for-drowsy-drivers
#15
John G Gaspar, John-Chris W Schwarz, Timothy L Brown, Julie Kang
Advanced driver assistance systems (ADAS) have the potential to prevent crashes and reduce their severity. Forward collision warnings (FCW) are quickly becoming standard across vehicle lineups and may prevent frontal crashes by alerting drivers. Previous research has demonstrated the effectiveness of FCW for distracted drivers, but their effectiveness for other types of impairment remains unknown. Like distraction, drowsiness can impair driver response time and lead to crashes. The goal of the present study was to evaluate the effectiveness of FCW for moderately and severely drowsy drivers using a high-fidelity driving simulator...
December 22, 2017: Accident; Analysis and Prevention
https://www.readbyqxmd.com/read/29275827/simulation-and-deliberate-practice-in-a-porcine-model-for-congenital-heart-surgery-training
#16
Constantine D Mavroudis, Constantine Mavroudis, Jeffrey P Jacobs, William M DeCampli, James S Tweddell
BACKGROUND: Surgeons in training for congenital cardiac surgery face considerable challenges owing to procedure complexity, closely scrutinized outcomes, and a steep learning curve. Simulation methods have been initiated in other surgical specialties, but have yet to be established for congenital cardiac surgery trainees. The purpose of this study was to assess high-fidelity simulation as a method to train and improve skills of resident trainees learning critical components of index congenital cardiac surgical procedures...
December 21, 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/29262374/direct-numerical-simulation-of-cellular-scale-blood-flow-in-3d-microvascular-networks
#17
Peter Balogh, Prosenjit Bagchi
We present, to our knowledge, the first direct numerical simulation of 3D cellular-scale blood flow in physiologically realistic microvascular networks. The vascular networks are designed following in vivo images and data, and are comprised of bifurcating, merging, and winding vessels. Our model resolves the large deformation and dynamics of each individual red blood cell flowing through the networks with high fidelity, while simultaneously retaining the highly complex geometric details of the vascular architecture...
December 19, 2017: Biophysical Journal
https://www.readbyqxmd.com/read/29249640/vessel-ligation-fundamentals-a-comparison-of-technical-evaluations-by-crowdsourced-nonclinical-personnel-and-surgical-faculty
#18
Yinin Hu, Boxiang Jiang, Helen Kim, Anneke T Schroen, Philip W Smith, Sara K Rasmussen
BACKGROUND: Evaluation of fundamental surgical skills is invaluable to the training of medical students and junior residents. This study assessed the effectiveness of crowdsourcing nonmedical personnel to evaluate technical proficiency at simulated vessel ligation. STUDY DESIGN: Fifteen videos were captured of participants performing vessel ligation using a low-fidelity model (5 attending surgeons and 5 medical students before and after training). These videos were evaluated by nonmedical personnel recruited through Amazon Mechanical Turk, as well as by 3 experienced surgical faculty...
December 14, 2017: Journal of Surgical Education
https://www.readbyqxmd.com/read/29248416/simulation-based-skill-training-for-trainees-in-cardiac-surgery-a-systematic-review
#19
REVIEW
Igo B Ribeiro, Janet M Ngu, Buu-Khanh Lam, Roger A Edwards
BACKGROUND: Simulation-based training has been an important part of the solution to address the shortfalls in cardiac surgery training. This review aims at identifying and systematically summarizing existing evidence on outcomes and methodological quality of simulation-based skills training for cardiac surgery trainees. METHODS: MEDLINE, Embase, and ERIC were searched. Studies included peer-reviewed publications with simulation-based skill training in cardiac surgery programs with outcome measures of performance...
December 14, 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/29240192/wavelength-modulated-planar-laser-induced-fluorescence-for-imaging-gases
#20
Garrett C Mathews, Christopher S Goldenstein
This work presents the development of wavelength-modulated planar laser-induced fluorescence (WM-PLIF) and its initial application to infrared imaging of carbon monoxide in a laminar flame. A continuous-wave quantum-cascade laser producing 50 mW near 4.8 μm was injection-current modulated at 1 kHz and scanned across the P(20) transition of CO at 20 Hz. The corresponding infrared-laser-induced fluorescence from 2065  cm-1 to 2155  cm-1 was imaged orthogonal to the laser sheet using a high-speed IR camera, and digital lock-in detection of the WM-PLIF first-harmonic signal (SF,1f) was performed to provide high-fidelity, background-free imaging of CO...
December 15, 2017: Optics Letters
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