keyword
MENU ▼
Read by QxMD icon Read
search

Operant learning

keyword
https://www.readbyqxmd.com/read/28107133/patient-feedback-on-orthodontic-therapist-student-outreach-training
#1
Robert S Ireland, Elizabeth M Hopkins
The introduction of orthodontic therapists as a new group of dental care professionals (DCPs) requires that their training in specialist orthodontic practices has provision for monitoring the level of supervision and clinical care provided by the students. The University of Warwick Diploma in Orthodontic Therapy programme has developed a patient questionnaire with the aim of assessing the patient's perception of the student. The observational questionnaire was designed to cover the four General Dental Council (GDC) domains and learning outcomes for orthodontic therapists, such that patient response could potentially provide valuable feedback to support the training programme...
November 1, 2016: Primary Dental Journal
https://www.readbyqxmd.com/read/28106675/treatment-of-slipped-capital-femoral-epiphysis-with-the-modified-dunn-procedure-a-multicenter-study
#2
Masquijo J Javier, Allende Victoria, D'Elia Martín, Miranda Gabriela, Fernández Claudio A
INTRODUCTION: Treatment of moderate to severe slipped capital femoral epiphysis (SCFE) is controversial. Over the last years, 3 institutions in Argentina adopted the modified Dunn procedure for capital realignment in selected cases of SCFE. Our aim in this study was to evaluate the clinical outcome and the rate of complications of patients who had undergone surgical hip dislocation and capital realignment. METHODS: A multicenter retrospective cohort study of patients who received the modified Dunn procedure from January 2009 to 2013 was performed...
January 18, 2017: Journal of Pediatric Orthopedics
https://www.readbyqxmd.com/read/28105470/bladder-cancer-segmentation-in-ct-for-treatment-response-assessment-application-of-deep-learning-convolution-neural-network-a-pilot-study
#3
COMMENT
Kenny H Cha, Lubomir M Hadjiiski, Ravi K Samala, Heang-Ping Chan, Richard H Cohan, Elaine M Caoili, Chintana Paramagul, Ajjai Alva, Alon Z Weizer
Assessing the response of bladder cancer to neoadjuvant chemotherapy is crucial for reducing morbidity and increasing quality of life of patients. Changes in tumor volume during treatment is generally used to predict treatment outcome. We are developing a method for bladder cancer segmentation in CT using a pilot data set of 62 cases. 65 000 regions of interests were extracted from pre-treatment CT images to train a deep-learning convolution neural network (DL-CNN) for tumor boundary detection using leave-one-case-out cross-validation...
December 2016: Tomography: a Journal for Imaging Research
https://www.readbyqxmd.com/read/28104497/robot-assisted-surgery-in-gynecologic-cancers
#4
REVIEW
V Zanagnolo, A Garbi, M T Achilarre, L Minig
Robotic-assisted surgery is a technological advancement that facilitates the application of minimally invasive techniques for complex operations in gynecological oncology. The objective of this article is to review the literature regarding the role of robotic-assisted surgery to treat women with gynecologic cancers. The majority of publications on robotic surgery are still retrospective or descriptive in nature, however, the data for managing patients with a robotic assisted approach shows comparable, and at times an improved outcomes compared to both laparoscopy (2D) and laparotomy approaches...
January 16, 2017: Journal of Minimally Invasive Gynecology
https://www.readbyqxmd.com/read/28104293/debriefing-decreases-mental-workload-in-surgical-crisis-a-randomized-controlled-trial
#5
Sylvain Boet, Bharat Sharma, Ashlee-Ann Pigford, Emily Hladkowicz, Neil Rittenhouse, Teodor Grantcharov
BACKGROUND: Mental workload is the amount of mental effort involved in performing a particular task. Crisis situations may increase mental workload, which can subsequently negatively impact operative performance and patient safety. This study aims to measure the impact of learning through debriefing and a systematic approach to crisis on trainees' mental workload in a simulated surgical crisis. METHODS: Twenty junior surgical residents participated in a high-fidelity, simulated, postoperative crisis in a surgical ward environment (pretest)...
January 16, 2017: Surgery
https://www.readbyqxmd.com/read/28103556/steerable-wavelet-machines-swm-learning-moving-frames-for-texture-classification
#6
Adrien Depeursinge, Zsuzsanna Puspoki, John Paul Ward, Michael Unser
We present texture operators encoding classspecific local organizations of image directions (LOID) in a rotation-invariant fashion. The LOIDs are key for visual understanding, and are at the origin of the success of the popular approaches such as local binary patterns (LBP) and the scaleinvariant feature transform (SIFT). Whereas LBPs and SIFT yield handcrafted image representations, we propose to learn dataspecific representations of the LOIDs in a rotation-invariant fashion. The image operators are based on steerable circular harmonic wavelets (CHW), offering a rich and yet compact initial representation for characterizing natural textures...
January 18, 2017: IEEE Transactions on Image Processing: a Publication of the IEEE Signal Processing Society
https://www.readbyqxmd.com/read/28103143/video-assisted-thoracic-surgical-lobectomy-for-lung-cancer-description-of-a-learning-curve
#7
Fei Yao, Jian Wang, Ju Yao, Fangrong Hang, Shiqi Cao, Yongke Cao
BACKGROUND: Video-assisted thoracic surgical (VATS) lobectomy is gaining popularity in the treatment of lung cancer. The aim of this study is to investigate the learning curve of VATS lobectomy by using multidimensional methods and to compare the learning curve groups with respect to perioperative clinical outcomes. METHODS: We retrospectively reviewed a prospective database to identify 67 consecutive patients who underwent VATS lobectomy for lung cancer by a single surgeon...
January 19, 2017: Journal of Laparoendoscopic & Advanced Surgical Techniques. Part A
https://www.readbyqxmd.com/read/28102005/blind-prediction-of-deleterious-amino-acid-variations-with-snps-go
#8
Emidio Capriotti, Pier Luigi Martelli, Piero Fariselli, Rita Casadio
: SNPs&GO is a machine learning method for predicting the association of single amino acid variations (SAVs) to disease, considering protein functional annotation. The method is a binary classifier that implements a Support Vector Machine algorithm to discriminate between disease-related and neutral SAVs. SNPs&GO combines information from protein sequence with functional annotation encoded by Gene Ontology terms. Tested in sequence mode on more than 38,000 SAVs from the SwissVar dataset, our method reached 81% overall accuracy and an area under the receiving operating characteristic curve (AUC) of 0...
January 19, 2017: Human Mutation
https://www.readbyqxmd.com/read/28101451/laparoscopic-vs-open-donor-nephrectomy-lessons-learnt-from-single-academic-center-experience
#9
Georgios Tsoulfas, Polyxeni Agorastou, Dicken S C Ko, Martin Hertl, Nahel Elias, A B Cosimi, Tatsuo Kawai
AIM: To compare laparoscopic and open living donor nephrectomy, based on the results from a single center during a decade. METHODS: This is a retrospective review of all living donor nephrectomies performed at the Massachusetts General Hospital, Harvard Medical School, Boston, between 1/1998 - 12/2009. Overall there were 490 living donors, with 279 undergoing laparoscopic living donor nephrectomy (LLDN) and 211 undergoing open donor nephrectomy (OLDN). Demographic data, operating room time, the effect of the learning curve, the number of conversions from laparoscopic to open surgery, donor preoperative glomerular filtration rate and creatinine (Cr), donor and recipient postoperative Cr, delayed graft function and donor complications were analyzed...
January 6, 2017: World Journal of Nephrology
https://www.readbyqxmd.com/read/28099700/a-systematic-review-and-meta-analysis-of-randomized-controlled-trials-comparing-hysteroscopic-morcellation-with-resectoscopy-for-patients-with-endometrial-lesions
#10
REVIEW
Chunbo Li, Zhiyuan Dai, Yuping Gong, Bingying Xie, Bei Wang
BACKGROUND: Results on the efficacy of hysteroscopic morcellation for patients with endometrial lesions remain conflicting. OBJECTIVES: To compare hysteroscopic morcellation with conventional resectoscopy for removal of endometrial lesions. SEARCH STRATEGY: Electronic databases were searched for reports published up to February 1, 2016, using terms such as "morcellator," "morcellators," "morcellate," "morcellation," "morcellated," "hysteroscopy," "hysteroscopy," "uteroscope," and "transcervical...
January 2017: International Journal of Gynaecology and Obstetrics
https://www.readbyqxmd.com/read/28098631/after-the-fall-the-tapestry-of-disturbance-and-recovery
#11
Nalini M Nadkarni
On July 3, 2015, Nalini Nadkarni, a world-renowned ecologist who had been studying the biologic processes of ecosystem disturbance and recovery, sustained a catastrophic 50-foot free-fall from the top of the rainforest canopy to the forest floor at her remote field research site. She lost consciousness in shock and sustained life-threatening injuries. Her accompanying students hiked out, radio-called 911, and the Harborview Medical Center (Seattle) Medivac team arrived 4 hours later to rescue her. Her prognosis was extremely grim; her family gathered in anticipation of her death as she underwent four operations during her 10 days in the ICU...
February 2017: Critical Care Medicine
https://www.readbyqxmd.com/read/28097374/effects-of-5-ht1a-5-ht2a-and-5-ht2c-receptor-agonists-and-antagonists-on-responding-for-a-conditioned-reinforcer-and-its-enhancement-by-methylphenidate
#12
Paul J Fletcher, Fiona D Zeeb, Caleb J Browne, Guy A Higgins, Ashlie D Soko
OBJECTIVES: These experiments examined the effects of selective 5-HT1A, 5-HT2A and 5-HT2C receptor ligands on responding for a conditioned reinforcer (CRf). Effects of these ligands were measured under basal conditions and following elevated dopamine (DA) activity produced by the DA reuptake inhibitor methylphenidate. METHODS: Water-restricted rats learned to associate a conditioned stimulus (CS) with water in operant chambers. Subsequently, two response levers were made available; responding on one lever delivered the CS (now a CRf), while responding on the second lever had no consequences...
January 18, 2017: Psychopharmacology
https://www.readbyqxmd.com/read/28095195/deep-learning-with-dynamic-spiking-neurons-and-fixed-feedback-weights
#13
Arash Samadi, Timothy P Lillicrap, Douglas B Tweed
Recent work in computer science has shown the power of deep learning driven by the backpropagation algorithm in networks of artificial neurons. But real neurons in the brain are different from most of these artificial ones in at least three crucial ways: they emit spikes rather than graded outputs, their inputs and outputs are related dynamically rather than by piecewise-smooth functions, and they have no known way to coordinate arrays of synapses in separate forward and feedback pathways so that they change simultaneously and identically, as they do in backpropagation...
January 17, 2017: Neural Computation
https://www.readbyqxmd.com/read/28094425/learning-curve-in-anatomo-electrophysiological-correlations-in-subthalamic-nucleus-stimulation
#14
Dušan Hrabovsky, Marek Balaz, Martina Bockova, Věra Feitova, Zdeněk Novak, Jan Chrastina
AIM: Advances in neuroradiological planning techniques in deep brain stimulation put the need for intraoperative electrophysiological monitoring into doubt. Moreover intraoperative monitoring prolongs surgical time and there is potential association between the use of microelectrodes and increased incidence of hemorrhagic complications Material and Methods: The study analyzes the correlation between the anatomically planned trajectory and the final subthalamic electrode placement after electrophysiological monitoring in patients with Parkinson's disease and its change with the increasing experience of the surgical team...
December 14, 2016: Turkish Neurosurgery
https://www.readbyqxmd.com/read/28094412/ultrasound-guided-approach-to-the-cervical-articular-process-joints-in-horses-a-validation-of-the-technique-in-cadavers
#15
Jessica Purefoy Johnson, John David Stack, Conor Rowan, Ian Handel, John Mark O'Leary
OBJECTIVES: To compare accuracy of the ultrasound-guided craniodorsal (CrD) approach with the dorsal (D) approach to the cervical articular process joints, and to evaluate the effect of transducer, needle gauge, and operator experience. METHODS: Cervical articular process joints from 14 cadaveric neck specimens were injected using either a D or CrD approach, a linear (13 MHx) or microconvex transducer (10 MHz), and an 18 or 20 gauge needle, by an experienced or inexperienced operator...
January 17, 2017: Veterinary and Comparative Orthopaedics and Traumatology: V.C.O.T
https://www.readbyqxmd.com/read/28093118/surgical-fires-and-operative-burns-lessons-learned-from-a-33-year-review-of-medical-litigation
#16
Asad J Choudhry, Nadeem N Haddad, Mohammad A Khasawneh, Daniel C Cullinane, Martin D Zielinski
OBJECTIVE: We aimed to understand the setting and litigation outcomes of surgical fires and operative burns. METHODS: Westlaw, an online legal research data-set, was utilized. Data were collected on patient, procedure, and case characteristics. RESULTS: One hundred thirty-nine cases were identified; 114 (82%) operative burns and 25 (18%) surgical fires. Median plaintiff (patient) age was 46 (IQR:28-59). Most common site of operative burn was the face (26% [n = 36])...
December 12, 2016: American Journal of Surgery
https://www.readbyqxmd.com/read/28092203/machine-learning-of-three-dimensional-right-ventricular-motion-enables-outcome-prediction-in-pulmonary-hypertension-a-cardiac-mr-imaging-study
#17
Timothy J W Dawes, Antonio de Marvao, Wenzhe Shi, Tristan Fletcher, Geoffrey M J Watson, John Wharton, Christopher J Rhodes, Luke S G E Howard, J Simon R Gibbs, Daniel Rueckert, Stuart A Cook, Martin R Wilkins, Declan P O'Regan
Purpose To determine if patient survival and mechanisms of right ventricular failure in pulmonary hypertension could be predicted by using supervised machine learning of three-dimensional patterns of systolic cardiac motion. Materials and Methods The study was approved by a research ethics committee, and participants gave written informed consent. Two hundred fifty-six patients (143 women; mean age ± standard deviation, 63 years ± 17) with newly diagnosed pulmonary hypertension underwent cardiac magnetic resonance (MR) imaging, right-sided heart catheterization, and 6-minute walk testing with a median follow-up of 4...
January 16, 2017: Radiology
https://www.readbyqxmd.com/read/28091694/-evidence-based-tep-technique
#18
F Köckerling
The guidelines of all international hernia societies recommend as procedures of choice the laparoendoscopic techniques total extraperitoneal patch plasty (TEP) and transabdominal preperitoneal patch plasty (TAPP) as well as the open Lichtenstein operation for elective inguinal hernia repair. The learning curve associated with the laparoendoscopic techniques, in particular TEP, is longer than that for the open Lichtenstein technique due to the complexity of the procedures. Accordingly, for laparoendoscopic techniques it is particularly important that the operations are conducted in a standardized manner in compliance with the evidence-based recommendations given for the technical details...
January 13, 2017: Der Chirurg; Zeitschrift Für Alle Gebiete der Operativen Medizen
https://www.readbyqxmd.com/read/28090085/prediction-and-real-time-compensation-of-qubit-decoherence-via-machine-learning
#19
Sandeep Mavadia, Virginia Frey, Jarrah Sastrawan, Stephen Dona, Michael J Biercuk
The wide-ranging adoption of quantum technologies requires practical, high-performance advances in our ability to maintain quantum coherence while facing the challenge of state collapse under measurement. Here we use techniques from control theory and machine learning to predict the future evolution of a qubit's state; we deploy this information to suppress stochastic, semiclassical decoherence, even when access to measurements is limited. First, we implement a time-division multiplexed approach, interleaving measurement periods with periods of unsupervised but stabilised operation during which qubits are available, for example, in quantum information experiments...
January 16, 2017: Nature Communications
https://www.readbyqxmd.com/read/28089473/box-or-virtual-reality-trainer-which-tool-results-in-better-transfer-of-laparoscopic-basic-skills-a-prospective-randomized-trial
#20
Christian Brinkmann, Mathias Fritz, Ulrich Pankratius, Ralf Bahde, Philipp Neumann, Steffen Schlueter, Norbert Senninger, Emile Rijcken
OBJECTIVE: Simulation training improves laparoscopic performance. Laparoscopic basic skills can be learned in simulators as box- or virtual-reality (VR) trainers. However, there is no clear recommendation for either box or VR trainers as the most appropriate tool for the transfer of acquired laparoscopic basic skills into a surgical procedure. DESIGN: Both training tools were compared, using validated and well-established curricula in the acquirement of basic skills, in a prospective randomized trial in a 5-day structured laparoscopic training course...
January 12, 2017: Journal of Surgical Education
keyword
keyword
9066
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"