keyword
MENU ▼
Read by QxMD icon Read
search

Operant learning

keyword
https://www.readbyqxmd.com/read/28334281/blocking-c-fos-expression-reveals-the-role-of-auditory-cortex-plasticity-in-sound-frequency-discrimination-learning
#1
Livia de Hoz, Dorota Gierej, Victoria Lioudyno, Jacek Jaworski, Magda Blazejczyk, Hugo Cruces-Solís, Anna Beroun, Tomasz Lebitko, Tomasz Nikolaev, Ewelina Knapska, Israel Nelken, Leszek Kaczmarek
The behavioral changes that comprise operant learning are associated with plasticity in early sensory cortices as well as with modulation of gene expression, but the connection between the behavioral, electrophysiological, and molecular changes is only partially understood. We specifically manipulated c-Fos expression, a hallmark of learning-induced synaptic plasticity, in auditory cortex of adult mice using a novel approach based on RNA interference. Locally blocking c-Fos expression caused a specific behavioral deficit in a sound discrimination task, in parallel with decreased cortical experience-dependent plasticity, without affecting baseline excitability or basic auditory processing...
March 17, 2017: Cerebral Cortex
https://www.readbyqxmd.com/read/28333183/machine-learning-algorithms-for-objective-remission-and-clinical-outcomes-with-thiopurines
#2
Akbar K Waljee, Kay Sauder, Anand Patel, Sandeep Segar, Boang Liu, Yiwei Zhang, Ji Zhu, Ryan W Stidham, Ulysses Balis, Peter D R Higgins
Background and Aims: Big data analytics leverage patterns in data to harvest valuable information, but are rarely implemented in clinical care. Optimising thiopurine therapy for inflammatory bowel disease [IBD] has proved difficult. Current methods using 6-thioguanine nucleotide [6-TGN] metabolites have failed in randomized controlled trials [RCTs], and have not been used to predict objective remission [OR]. Our aims were to: 1) develop machine learning algorithms [MLA] using laboratory values and age to identify patients in objective remission on thiopurines; and 2) determine whether achieving algorithm-predicted objective remission resulted in fewer clinical events per year...
March 14, 2017: Journal of Crohn's & Colitis
https://www.readbyqxmd.com/read/28332099/integrated-multisystem-analysis-in-a-mental-health-and-criminal-justice-ecosystem
#3
Erin Falconer, Tal El-Hay, Dimitris Alevras, John P Docherty, Chen Yanover, Alan Kalton, Yaara Goldschmidt, Michal Rosen-Zvi
BACKGROUND: Patients with a serious mental illness often receive care that is fragmented due to reduced availability of or access to resources, and inadequate, discontinuous, and uncoordinated care across health, social services, and criminal justice organizations. This article describes the creation of a multisystem analysis that derives insights from an integrated dataset including patient access to case management services, medical services, and interactions with the criminal justice system...
December 2017: Health & Justice
https://www.readbyqxmd.com/read/28331891/differentiation-of-arterioles-from-venules-in-mouse-histology-images-using-machine-learning
#4
J Sachi Elkerton, Yiwen Xu, J Geoffrey Pickering, Aaron D Ward
Analysis and morphological comparison of the arteriolar and venular components of a microvascular network are essential to our understanding of multiple diseases affecting every organ system. We have developed and evaluated the first fully automatic software system for differentiation of arterioles from venules on high-resolution digital histology images of the mouse hind limb immunostained with smooth muscle [Formula: see text]-actin. Classifiers trained on statistical and morphological features by supervised machine learning provided useful classification accuracy for differentiation of arterioles from venules, achieving an area under the receiver operating characteristic curve of 0...
April 2017: Journal of Medical Imaging
https://www.readbyqxmd.com/read/28331493/feasibility-and-safety-of-pressurized-intraperitoneal-aerosol-chemotherapy-for-peritoneal-carcinomatosis-a-retrospective-cohort-study
#5
Martin Hübner, Hugo Teixeira Farinha, Fabian Grass, Anita Wolfer, Patrice Mathevet, Dieter Hahnloser, Nicolas Demartines
Background. Pressurized intraperitoneal aerosol chemotherapy (PIPAC) has been introduced as a novel repeatable treatment for peritoneal carcinomatosis. The available evidence from the pioneer center suggests good tolerance and high response rates, but independent confirmation is needed. A single-center cohort was analyzed one year after implementation for feasibility and safety. Methods. PIPAC was started in January 2015, and every patient was entered into a prospective database. This retrospective analysis included all consecutive patients operated until April 2016 with emphasis on surgical feasibility and early postoperative outcomes...
2017: Gastroenterology Research and Practice
https://www.readbyqxmd.com/read/28330801/innocuous-cardiac-gunshot-that-proved-fatal-a-bitter-lesson-learned
#6
Biplab Mishra, Mohit Kumar Joshi, Subodh Kumar, Atin Kumar, Amit Gupta, Amulya Rattan, Sushma Sagar, Maneesh Singhal, Mahesh Chandra Misra
The management of hemodynamically normal patients with retained intra-pericardial foreign body remains a matter of conjecture. The available literature supports non-operative management of such innocuous foreign bodies. We report our experience of a hemodynamically normal patient with a retained intra-pericardial pellet from a firearm injury. He initially received successful non-operative management but developed fatal hemopericardium 21 days after injury. In this paper, we discussed the pitfalls in the management of such injuries in light of the available literature and summarized the clinical experience...
March 1, 2017: Chinese Journal of Traumatology, Zhonghua Chuang Shang za Zhi
https://www.readbyqxmd.com/read/28328673/remote-damage-control-during-the-attacks-on-paris-lessons-learned-by-the-paris-fire-brigade-and-evolutions-in-the-rescue-system
#7
Xavier Lesaffre, Jean-Pierre Tourtier, Yann Violin, Benoit Frattini, Catherine Rivet, Olivier Stibbe, Florian Faure, Anne Godefroy, Jean-Claude Gallet, Sylvain Ausset
On November 13, 2015, in 40 minutes, Paris suffered 4 suicide bombers attacks, shootings at 3 different restaurant terraces and an attack on the Bataclan concert hall resulting in 130 dead and 495 wounded. How did the Parisian rescue system respond and how did it evolve since?We proved we could deploy quickly wide prehospital and hospital resources and teams' equipment and preparedness is being further developed. In order to secure a swifter initial response we need a better integration of the operators of the rescue chain with a simpler and more robust organization as well as improved communications channels...
March 20, 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28328640/we-are-going-to-name-names-and-call-you-out-improving-the-team-in-the-academic-operating-room-environment
#8
Richard Bodor, Brian J Nguyen, Kevin Broder
INTRODUCTION: Communication failures between multidisciplinary teams can impact efficiency, performance, and morale. Academic operating rooms (ORs) often have surgical, anesthesia, and nursing teams, each teaching multiple trainees. Incorrectly identifying name and "rank" (postgraduate year [PGY]) of resident trainees can disrupt performance evaluations and team morale and even potentially impair delivery of quality care when miscommunication errors proliferate. METHODS: Our OR-based survey asked 50 participants (18 surgeons, 14 anesthesiologists, and 18 nursing members), to recall basic identification data including provider names and PGY levels from their recent collaborating OR teams...
March 21, 2017: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/28328569/mid-term-follow-up-of-minimally-invasive-multivessel-coronary-artery-bypass-grafting-is-the-early-learning-phase-detrimental
#9
Maria Lorena Rodriguez, Harry R Lapierre, Benjamin Sohmer, David Glineur, Marc Ruel
OBJECTIVE: Minimally invasive coronary artery bypass grafting (MICS CABG) through a small left thoracotomy is a novel technique for surgical coronary revascularization, which is increasingly being adopted around the world. This study aimed to describe the characteristics and mid-term outcomes of a series of MICS CABG to identify areas for improvement. METHODS: A prospective longitudinal study was performed on the 306 MICS CABG patients operated on by a single surgeon from 2005 to 2015...
March 22, 2017: Innovations: Technology and Techniques in Cardiothoracic and Vascular Surgery
https://www.readbyqxmd.com/read/28327385/acoustic-startle-modification-as-a-tool-for-evaluating-auditory-function-of-the-mouse-progress-pitfalls-and-potential
#10
REVIEW
Amanda M Lauer, Derik Behrens, Georg Klump
Acoustic startle response (ASR) modification procedures, especially prepulse inhibition (PPI), are increasingly used as behavioral measures of auditory processing and sensorimotor gating in rodents due to their perceived ease of implementation and short testing times. In practice, ASR and PPI procedures are extremely variable across animals, experimental setups, and studies, and the interpretation of results is subject to numerous caveats and confounding influences. We review considerations for modification of the ASR using acoustic stimuli, and we compare the sensitivity of PPI procedures to more traditional operant psychoacoustic techniques...
March 18, 2017: Neuroscience and Biobehavioral Reviews
https://www.readbyqxmd.com/read/28327199/measuring-research-impact-in-australia-s-medical-research-institutes-a-scoping-literature-review-of-the-objectives-for-and-an-assessment-of-the-capabilities-of-research-impact-assessment-frameworks
#11
REVIEW
Simon Deeming, Andrew Searles, Penny Reeves, Michael Nilsson
BACKGROUND: Realising the economic potential of research institutions, including medical research institutes, represents a policy imperative for many Organisation for Economic Co-operation and Development nations. The assessment of research impact has consequently drawn increasing attention. Research impact assessment frameworks (RIAFs) provide a structure to assess research translation, but minimal research has examined whether alternative RIAFs realise the intended policy outcomes. This paper examines the objectives presented for RIAFs in light of economic imperatives to justify ongoing support for health and medical research investment, leverage productivity via commercialisation and outcome-efficiency gains in health systems, and ensure that translation and impact considerations are embedded into the research process...
March 21, 2017: Health Research Policy and Systems
https://www.readbyqxmd.com/read/28327195/does-rating-the-operation-videos-with-a-checklist-score-improve-the-effect-of-e-learning-for-bariatric-surgical-training-study-protocol-for-a-randomized-controlled-trial
#12
Javier Rodrigo De La Garza, Karl-Friedrich Kowalewski, Mirco Friedrich, Mona Wanda Schmidt, Thomas Bruckner, Hannes Götz Kenngott, Lars Fischer, Beat-Peter Müller-Stich, Felix Nickel
BACKGROUND: Laparoscopic training has become an important part of surgical education. Laparoscopic Roux-en-Y gastric bypass (RYGB) is the most common bariatric procedure performed. Surgeons must be well trained prior to operating on a patient. Multimodality training is vital for bariatric surgery. E-learning with videos is a standard approach for training. The present study investigates whether scoring the operation videos with performance checklists improves learning effects and transfer to a simulated operation...
March 21, 2017: Trials
https://www.readbyqxmd.com/read/28326009/improving-eeg-based-driver-fatigue-classification-using-sparse-deep-belief-networks
#13
Rifai Chai, Sai Ho Ling, Phyo Phyo San, Ganesh R Naik, Tuan N Nguyen, Yvonne Tran, Ashley Craig, Hung T Nguyen
This paper presents an improvement of classification performance for electroencephalography (EEG)-based driver fatigue classification between fatigue and alert states with the data collected from 43 participants. The system employs autoregressive (AR) modeling as the features extraction algorithm, and sparse-deep belief networks (sparse-DBN) as the classification algorithm. Compared to other classifiers, sparse-DBN is a semi supervised learning method which combines unsupervised learning for modeling features in the pre-training layer and supervised learning for classification in the following layer...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28324951/mentor-s-brain-functional-connectivity-network-during-robotic-assisted-surgery-mentorship
#14
Somayeh B Shafiei, Scott T Doyle, Khurshid A Guru
In many complicated cognitive-motor tasks mentoring is inevitable during the learning process. Although mentors are expert in doing the task, trainee's operation might be new for a mentor. This makes mentoring a very difficult task which demands not only the knowledge and experience of a mentor, but also his/her ability to follow trainee's movements and patiently advise him/her during the operation. We hypothesize that information binding throughout the mentor's brain areas, contributed to the task, changes as the expertise level of the trainee improves from novice to intermediate and expert...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28323285/utilization-of-machine-learning-for-prediction-of-post-traumatic-stress-a-re-examination-of-cortisol-in-the-prediction-and-pathways-to-non-remitting-ptsd
#15
I R Galatzer-Levy, S Ma, A Statnikov, R Yehuda, A Y Shalev
To date, studies of biological risk factors have revealed inconsistent relationships with subsequent post-traumatic stress disorder (PTSD). The inconsistent signal may reflect the use of data analytic tools that are ill equipped for modeling the complex interactions between biological and environmental factors that underlay post-traumatic psychopathology. Further, using symptom-based diagnostic status as the group outcome overlooks the inherent heterogeneity of PTSD, potentially contributing to failures to replicate...
March 21, 2017: Translational Psychiatry
https://www.readbyqxmd.com/read/28322771/computer-aided-detection-of-early-barrett-s-neoplasia-using-volumetric-laser-endomicroscopy
#16
A Swager, F van der Sommen, S R Klomp, S Zinger, S L Meijer, E J Schoon, J J Bergman, P H N de With, W L Curvers
BACKGROUND AND AIMS: Volumetric laser endomicroscopy (VLE) is an advanced imaging system that provides a near-microscopic resolution scan of the esophageal wall layers up to 3 mm deep. VLE has the potential to improve detection of early neoplasia in Barrett's esophagus (BE). However, interpretation of VLE images is complex due to the large amount of data that needs to be interpreted in real-time. The aim of this study was to investigate the feasibility of a computer algorithm to identify early BE neoplasia on ex vivo VLE images...
March 16, 2017: Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/28322127/video-assisted-septoplasty
#17
Akram Rahal, Marie-Pierre Charron
Teaching and learning septoplasty is challenging due to the limited and intermittent visualization of the surgical site by the resident and the mentor. Our objective was to develop and test the surgical tools required to achieve optimal visualization of the surgical field during septal surgery without having to modify the way conventional septoplasty is performed. A flexible high-definition endoscope is mounted on a modified 50-mm nasal speculum. This allows real-time visualization of all steps of the surgery on the video monitor...
February 1, 2017: Otolaryngology—Head and Neck Surgery
https://www.readbyqxmd.com/read/28320666/rgbd-salient-object-detection-via-deep-fusion
#18
Liangqiong Qu, Shengfeng He, Jiawei Zhang, Jiandong Tian, Yandong Tang, Qingxiong Yang
Numerous efforts have been made to design various low-level saliency cues for RGBD saliency detection, such as color and depth contrast features as well as background and color compactness priors. However, how these low-level saliency cues interact with each other and how they can be effectively incorporated to generate a master saliency map remain challenging problems. In this paper, we design a new convolutional neural network (CNN) to automatically learn the interaction mechanism for RGBD salient object detection...
March 15, 2017: IEEE Transactions on Image Processing: a Publication of the IEEE Signal Processing Society
https://www.readbyqxmd.com/read/28319476/anesthesia-in-patients-with-infectious-disease-caused-by-multi-drug-resistant-bacteria
#19
Sharon Einav, Yonit Wiener-Well
PURPOSE OF REVIEW: Up to 50% of specific bacterial strains in healthcare admission facilities are multidrug-resistant organisms (MDROs). Involvement of anesthesiologists in management of patients carrying/at risk of carrying MDROs may decrease transmission in the Operating Room (OR). RECENT FINDINGS: Anesthesiologists, their work area and tools have all been implicated in MDRO outbreaks. Causes include contamination of external ventilation circuits and noncontribution of filters to prevention, inappropriate decontamination procedures for nondisposable equipment (e...
March 17, 2017: Current Opinion in Anaesthesiology
https://www.readbyqxmd.com/read/28318749/experience-and-outcomes-of-micrografting-for-major-paediatric-burns
#20
H Rode, R Martinez, D Potgieter, S Adams, A D Rogers
BACKGROUND: The deficit of donor sites in major burns over 50% of the total body surface area has necessitated the application of methods besides traditional meshed autografting to achieve definitive skin cover. The Meek micrografting technique was introduced at this hospital in 2011, especially in the absence of a reliable source of deceased donor allograft skin. The purpose of this study was to evaluate this strategy with reference to its technical execution, efficacy and indications in the context of major paediatric burn surgery...
March 15, 2017: Burns: Journal of the International Society for Burn Injuries
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"