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Book ; Online: Research on Language Teaching and Learning: Advances and Projection

Abad, José Vicente / Vanegas Rojas, Marlon / Peláez Henao, Oscar / Jaramillo Valencia, Bairon / Uribe, Claudia María / Betancur, Jair Alejandro / Jaramillo, Diana Marcela / Restrepo Bolivar, Erika / Amigó, Fondo Editorial Universidad Católica Luis

2021

Keywords	English language teaching (ELT) ; Language Teaching ; Language Learning ; Language Teacher Education ; Academic Performance ; Literacy ; Language Policy ; Teacher Identity ; Research Training ; Teacher research
Size	1 electronic resource (195 pages)
Publisher	Universidad Católica Luis Amigó
Publishing place	Medellín, Antioquia, Colombia
Document type	Book ; Online
Note	English ; Open Access
HBZ-ID	HT021232107
ISBN	9789588943701 ; 9588943701
Database	ZB MED Catalogue: Medicine, Health, Nutrition, Environment, Agriculture

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Article ; Online: Enhancing Virtual Rehabilitation in Upper Limbs With Biocybernetic Adaptation: The Effects of Virtual Reality on Perceived Muscle Fatigue, Game Performance and User Experience.

Montoya, Maria F / Munoz, John E / Henao, Oscar A

IEEE transactions on neural systems and rehabilitation engineering : a publication of the IEEE Engineering in Medicine and Biology Society

2020 Volume 28, Issue 3, Page(s) 740–747

Abstract: Virtual rehabilitation has been used during decades to provide a more personalized, controlled, and enjoyable experience on upper-limb motor rehabilitation. Since novel virtual reality (VR) technologies are now accessible and highly immersive, the ... ...

Abstract	Virtual rehabilitation has been used during decades to provide a more personalized, controlled, and enjoyable experience on upper-limb motor rehabilitation. Since novel virtual reality (VR) technologies are now accessible and highly immersive, the challenge for a wide dissemination of virtual rehabilitation in clinical scenarios has shifted from the hardware robustness to the software intelligence. A sophisticated technique that provides physiological intelligence to novel human-computer interaction (HCI) applications is biocybernetic adaptation. The concept emerges from the electrophysiological computing field, and it proposes using body signals to detect human states (e.g. workload or fatigue) and modulate the virtual activity accordingly. This paper evaluates the effects of using biocybernetic adaptation in a virtual rehabilitation game that aims to encourage users to exert at a desirable intensity level while interacting with the virtual environment. The system relies on surface-electromyography (sEMG) signals to detect fatigue levels in real-time and adapt the game challenge dynamically. Perceived fatigue levels, game user experience, and game performance parameters are assessed after playing the game, considering two different visualization modalities: non-immersive (conventional flat screen) and immersive (VR headset). Results revealed how the biocybernetic system in the immersive condition not only produced lower levels of perceived fatigue compared with the non-immersive, but also, created a more enjoyable and positive experience in a controlled experiment with 24 healthy subjects. Moreover, participants in the immersive condition showed a better performance in the virtual game and higher usability levels scored by users compared with the non-immersive condition. To conclude, we highlight the importance of combining novel immersive approaches with physiologically aware systems to enhance the benefits of virtual rehabilitation therapies.
MeSH term(s)	Humans ; Muscle Fatigue ; Software ; Telerehabilitation ; Upper Extremity ; Virtual Reality
Language	English
Publishing date	2020-01-22
Publishing country	United States
Document type	Journal Article
ZDB-ID	1166307-8
ISSN	1558-0210 ; 1063-6528 ; 1534-4320
ISSN (online)	1558-0210
ISSN	1063-6528 ; 1534-4320
DOI	10.1109/TNSRE.2020.2968869
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article: Concordance between hepatic biopsy and the APRI index (Ast to Platelet Ratio Index) for the diagnosis of cirrhosis in patients with autoimmune liver disease.

Suarez-Quintero, Carmen Yanette / Patarroyo Henao, Oscar / Muñoz-Velandia, Oscar

Gastroenterologia y hepatologia

2021 Volume 44, Issue 7, Page(s) 465–471

Abstract: Introduction and objectives: It has been proposed that non-invasive methods may replace liver biopsy for the diagnosis of tissue damage in patients with autoimmune liver disease (ALD). The aim of this study was to determine diagnostic performance and ... ...

Title translation	Concordancia entre el resultado de la biopsia hepática y el índice APRI (Ast to Platelet Ratio Index) en el diagnóstico de cirrosis en pacientes con enfermedad hepática autoinmune.
Abstract	Introduction and objectives: It has been proposed that non-invasive methods may replace liver biopsy for the diagnosis of tissue damage in patients with autoimmune liver disease (ALD). The aim of this study was to determine diagnostic performance and degree of concordance between the APRI index and liver biopsy for diagnosing cirrhosis in these patients. Material and methods: In a cohort of patients with ALD, the value of the APRI index and liver biopsy results were determined according to the METAVIR score. The AUC and the degree of concordance between an APRI value >2 and a METAVIR score of F4 were evaluated as markers of liver cirrhosis, through a kappa statistic. Results: In total, 70 patients (age 51 ± 13 years) were included. The most common autoimmune liver diseases were primary biliary cirrhosis (PBC) (40%), autoimmune hepatitis (AIH) (24.3%) and AIH-PBC overlap syndrome (32.9%). Cirrhosis was confirmed by biopsy in 16 patients (22.9%). 15 patients (21.4%) had an APRI index >2 (Cirrhosis) and only six met both criteria. The AUC of the APRI was 0.77 (95% CI 0.65-0.88). The degree of concordance between the tests was low for an APRI cut-off point >2 (kappa 0.213; 95% CI 0.094-0.332), as well as for cut-off points >1.5, >1 and >0.5 (kappa 0.213, 0.255, 0.257, respectively) CONCLUSION: Our results suggest that there is little concordance between APRI and liver biopsy for the diagnosis of cirrhosis in patients with ALD. It should therefore not be used as a single diagnostic method to determine cirrhosis.
MeSH term(s)	Adult ; Aspartate Aminotransferases/blood ; Autoimmune Diseases/pathology ; Biomarkers/blood ; Biopsy ; Female ; Humans ; Liver/pathology ; Liver Cirrhosis/blood ; Liver Cirrhosis/pathology ; Liver Diseases/blood ; Liver Diseases/immunology ; Liver Diseases/pathology ; Male ; Middle Aged ; Platelet Count ; Retrospective Studies
Chemical Substances	Biomarkers ; Aspartate Aminotransferases (EC 2.6.1.1)
Language	Spanish
Publishing date	2021-02-16
Publishing country	Spain
Document type	Journal Article
ZDB-ID	632502-6
ISSN	0210-5705
ISSN	0210-5705
DOI	10.1016/j.gastrohep.2020.07.005
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Article ; Online: Low cost implementation of a Motor Imagery experiment with BCI system and its use in neurorehabilitation.

Munoz, John E / Rios, Luis H / Henao, Oscar A

Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference

2015 Volume 2014, Page(s) 1230–1233

Abstract: The application of rehabilitation programs based on videogames with brain-computer interfaces (BCI) allows to provide feedback to the user with the expectation of stimulate the brain plasticity that will restore the motor control. The use of specific ... ...

Abstract	The application of rehabilitation programs based on videogames with brain-computer interfaces (BCI) allows to provide feedback to the user with the expectation of stimulate the brain plasticity that will restore the motor control. The use of specific mental strategies such as Motor Imagery (MI) in neuroscientific experiments with BCI systems often requires the acquisition of sophisticated interfaces and specialized software for execution, which usually have a high implementation costs. We present a combination of low-cost hardware and open-source software for the implementation of videogame based on virtual reality with MI and its potential use as neurotherapy for stroke patients. Three machine learning algorithms for the BCI signals classification are shown: LDA (Linear Discriminant Analysis) and two Support Vector Machines (SVM) in order to determine which task of MI is being performed by the user in a particular moment of the experiment. All classification algorithms was evaluated in 8 healthy subjects, the average accuracy of the best classifier was 96.7%, which shows that it is possible to carry out serious neuroscientific experiments with MI using low-cost BCI systems and achieve comparable accuracies with more sophisticated and expensive devices.
MeSH term(s)	Algorithms ; Brain/physiology ; Brain-Computer Interfaces ; Discriminant Analysis ; Electroencephalography ; Humans ; Neurological Rehabilitation/economics ; Stroke Rehabilitation
Language	English
Publishing date	2015-01-06
Publishing country	United States
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ISSN	2694-0604
ISSN (online)	2694-0604
DOI	10.1109/EMBC.2014.6943819
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article: Commercial videoconferencing for use in telementoring laparoscopic surgery.

Guo, Yanbo / Henao, Oscar / Jackson, Timothy / Quereshy, Fayez / Okrainec, Allan

Studies in health technology and informatics

2014 Volume 196, Page(s) 147–149

Abstract: Telementoring is a useful tool for laparoscopic surgical education. However, current systems have high barriers to entry that prevent widespread adoption. Using commercial videoconferencing applications for telementoring would lower cost and technical ... ...

Abstract	Telementoring is a useful tool for laparoscopic surgical education. However, current systems have high barriers to entry that prevent widespread adoption. Using commercial videoconferencing applications for telementoring would lower cost and technical barriers. This study examines nine of these options.
MeSH term(s)	Education, Medical, Continuing ; Humans ; Laparoscopy/education ; Mentors ; Telemedicine ; Videoconferencing
Language	English
Publishing date	2014
Publishing country	Netherlands
Document type	Journal Article
ISSN	0926-9630
ISSN	0926-9630
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Article ; Online: Remote FLS testing in the real world: ready for "prime time".

Okrainec, Allan / Vassiliou, Melina / Jimenez, M Carolina / Henao, Oscar / Kaneva, Pepa / Matt Ritter, E

Surgical endoscopy

2016 Volume 30, Issue 7, Page(s) 2697–2702

Abstract: Introduction: Maintaining the existing FLS test centers requires considerable investment in human and financial resources. It can also be particularly challenging for those outside of North America to become certified due to the limited number of ... ...

Abstract	Introduction: Maintaining the existing FLS test centers requires considerable investment in human and financial resources. It can also be particularly challenging for those outside of North America to become certified due to the limited number of international test centers. Preliminary work suggests that it is possible to reliably score the FLS manual skills component remotely using low-cost videoconferencing technology. Significant work remains to ensure that testing procedures adhere to standards defined by SAGES for this approach to be considered equivalent to standard on-site testing. Objective: To validate the integrity and validity of the FLS manual skills examination administered remotely in a real-world environment according to FLS testing protocols and to evaluate participants' experience with the setting. Methods: Individuals with various levels of training from the University of Toronto completed a pre- and a post-test questionnaire. Participants presented to one of the two FLS testing rooms available for the study, each connected via Skype to a separate room with a FLS proctor who administered and scored the test remotely (RP). An on-site proctor (OP) was present in the room as a control. An invigilator was also present in the testing room to follow directions from the RP and ensure the integrity of test materials. Results: Twenty-one participants were recruited, and 20 completed the test. There was no significant difference between scores by RP and OP. Interrater reliability between the RP and OP was excellent. One critical error was missed by the RP, but this would not have affected the test outcome. Participants reported being highly satisfied. Conclusion: We demonstrate that proctors located remotely can administer the FLS skills test in a secure and reliable fashion, with excellent interrater reliability compared to an on-site proctor. Remote proctoring of the FLS examination could become a strategy to increase certification rates while containing costs.
MeSH term(s)	Canada ; Case-Control Studies ; Certification ; Clinical Competence ; Educational Measurement/methods ; Humans ; Laparoscopy/education ; Laparoscopy/standards ; Reproducibility of Results ; Videoconferencing
Keywords	covid19
Language	English
Publishing date	2016-07
Publishing country	Germany
Document type	Journal Article ; Validation Studies
ZDB-ID	639039-0
ISSN	1432-2218 ; 0930-2794
ISSN (online)	1432-2218
ISSN	0930-2794
DOI	10.1007/s00464-015-4595-x
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Book ; Article ; Online: A diarrheal disease surveillance system in Cali, Colombia

Koopman, James S / Guzmán, Ney / Henao, Oscar / Bergonzoli Pelaez, Gustavo

Theoretical basis and methods

2016

Keywords	Diarrhea ; Data Collection ; Colombia
Publishing date	2016-03-05T18:56:08Z
Document type	Book ; Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Book ; Article ; Online: Vigilancia de las enfermedades diarreícas

Koopman, James S / Guzmán, Ney / Henao, Oscar / Bergonzoli Pelaez, Gustavo

programa en Cali, Colombia

2015

Keywords	Diarreia ; Colômbia
Publishing date	2015-12-08T03:09:41Z
Document type	Book ; Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Telesimulation: an effective method for teaching the fundamentals of laparoscopic surgery in resource-restricted countries.

Okrainec, Allan / Henao, Oscar / Azzie, Georges

Surgical endoscopy

2009 Volume 24, Issue 2, Page(s) 417–422

Abstract: Background: Several challenges exist with laparoscopic skills training in resource-restricted countries, including long travel distances required by mentors for onsite teaching. Telesimulation (TS) is a novel concept that uses the internet to link ... ...

Abstract	Background: Several challenges exist with laparoscopic skills training in resource-restricted countries, including long travel distances required by mentors for onsite teaching. Telesimulation (TS) is a novel concept that uses the internet to link simulators between an instructor and a trainee in different locations. The purpose of this study was to determine the effectiveness of telesimulation for teaching the Fundamentals of Laparoscopic Surgery (FLS) to surgeons in Botswana, Africa. Methods: A total of 16 surgeons from two centers in Botswana participated in this 8-week study. FLS TS was set up using two simulators, computers, webcams, and Skype software for eight surgeons in the TS group. A standard FLS simulator was available for the eight surgeons in the self-practice (SP) group. Participants in the TS group had one remote training session per week with an FLS proctor at the University of Toronto who provided feedback and demonstrated proper technique. Participants in the SP group had access to the FLS DVD and were instructed to train on FLS at least once per week. FLS post-test scores were obtained in Botswana by a trained FLS proctor at the conclusion of the study. Results: Participants in the TS group had significantly higher post-test FLS scores than those in the SP group (440 +/- 56 vs. 272 +/- 95, p = 0.001). All trainees in the TS group achieved an FLS simulator certification passing score, whereas only 38% in the SP group did so (p = 0.03). Conclusion: Remote telesimulation is an effective method for teaching the Fundamentals of Laparoscopic Surgery in Africa, achieving a 100% FLS skills pass rate. This training platform provides a cost-effective method of teaching in resource-restricted countries and could be used to teach laparoscopic skills anywhere in the world with internet access.
MeSH term(s)	Botswana ; Canada ; Computer Simulation ; Developing Countries ; Education, Medical, Continuing/methods ; Educational Measurement ; Feedback, Psychological ; Female ; General Surgery/education ; Humans ; International Cooperation ; Internet ; Laparoscopy ; Male ; Software ; Suture Techniques/education ; Telecommunications ; Telemedicine/methods ; Webcasts as Topic
Language	English
Publishing date	2009-06-30
Publishing country	Germany
Document type	Journal Article ; Multicenter Study ; Research Support, Non-U.S. Gov't
ZDB-ID	639039-0
ISSN	1432-2218 ; 0930-2794
ISSN (online)	1432-2218
ISSN	0930-2794
DOI	10.1007/s00464-009-0572-6
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Article ; Online: Telesimulation: an innovative and effective tool for teaching novel intraosseous insertion techniques in developing countries.

Mikrogianakis, Angelo / Kam, April / Silver, Shawna / Bakanisi, Balisi / Henao, Oscar / Okrainec, Allan / Azzie, Georges

Academic emergency medicine : official journal of the Society for Academic Emergency Medicine

2011 Volume 18, Issue 4, Page(s) 420–427

Abstract: Objectives: Telesimulation is a novel concept coupling the principles of simulation with remote Internet access to teach procedural skills. This study's objective was to determine if telesimulation could be used by pediatricians in Toronto, Ontario, ... ...

Abstract	Objectives: Telesimulation is a novel concept coupling the principles of simulation with remote Internet access to teach procedural skills. This study's objective was to determine if telesimulation could be used by pediatricians in Toronto, Ontario, Canada, to teach a relatively new intraosseous (IO) insertion technique to physicians in Africa. Methods: One simulator was located in Toronto and the other in Gaborone, Botswana. Instructors and trainees could see one another, see inside each other's simulators, and communicate in real time. Learner's opinions and skills were evaluated. Before and after the curriculum, physicians completed a self-assessment questionnaire, a multiple-choice test, and during session 3, a demonstration of competence using an IO infusion system was timed and scored locally and via the Internet. Results: Twenty-two physicians participated. The scores on the pretest ranged from 1 to 12 out of 15. The range of scores on the posttest was 10 to 15 out of 15. The mean (±SD) score on pre- and post-multiple choice testing increased by +5 (±2.75; 95% confidence interval [CI] for mean difference = 3.92 to 6.35). Based on McNemar's chi-square test, physicians reported a significant improvement in their comfort and knowledge inserting IO needles (p < 0.01), familiarity with the EZ-IO infusion system (p < 0.01), and knowledge handling the IO equipment (p < 0.01). Postintervention, all physicians reported that telesimulation teaching was a worthwhile experience, and 95% felt more prepared to manage pediatric resuscitation. There was no evidence of a difference in scoring or timing of IO insertion tasks whether measured locally or remotely (mean ± SD score difference = -0.11 ± 1.22 [95% CI = -0.66 to 0.43]; mean ± sd time difference = 0.01 ± 0.15 seconds [95% CI = -0.06 to 0.08 seconds]). Conclusions: Telesimulation is a novel method for teaching procedural skills. The session improved physicians' knowledge, self-reported confidence, and comfort level in inserting the IO needle. Accurate scoring is possible via the Internet. This modality offers potential for teaching other procedural skills over distances.
MeSH term(s)	Botswana ; Canada ; Computer Simulation ; Developing Countries ; Education, Medical, Continuing/methods ; Educational Measurement/statistics & numerical data ; Humans ; Infusions, Intraosseous/methods ; International Cooperation ; Internet ; Telecommunications ; Telemedicine/methods ; Webcasts as Topic
Language	English
Publishing date	2011-04
Publishing country	United States
Document type	Evaluation Studies ; Journal Article
ZDB-ID	1329813-6
ISSN	1553-2712 ; 1069-6563
ISSN (online)	1553-2712
ISSN	1069-6563
DOI	10.1111/j.1553-2712.2011.01038.x
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