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https://www.readbyqxmd.com/read/28368083/-training-cortical-signals-by-means-of-a-bmi-eeg-system-its-evolution-and-intervention-a-case-report
#1
E Monge-Pereira, I Casatorres Perez-Higueras, P Fernandez-Gonzalez, J Ibanez-Pereda, J I Serrano, F Molina-Rueda
INTRODUCTION: In the last years, new technologies such as the brain-machine interfaces (BMI) have been incorporated in the rehabilitation process of subjects with stroke. These systems are able to detect motion intention, analyzing the cortical signals using different techniques such as the electroencephalography (EEG). This information could guide different interfaces such as robotic devices, electrical stimulation or virtual reality. CASE REPORT: A 40 years-old man with stroke with two months from the injury participated in this study...
April 16, 2017: Revista de Neurologia
https://www.readbyqxmd.com/read/28269298/skills-based-evaluation-of-alternative-input-methods-to-command-a-semi-autonomous-electric-wheelchair
#2
Mario Rojas, Pedro Ponce, Arturo Molina
This paper presents the evaluation, under standardized metrics, of alternative input methods to steer and maneuver a semi-autonomous electric wheelchair. The Human-Machine Interface (HMI), which includes a virtual joystick, head movements and speech recognition controls, was designed to facilitate mobility skills for severely disabled people. Thirteen tasks, which are common to all the wheelchair users, were attempted five times by controlling it with the virtual joystick and the hands-free interfaces in different areas for disabled and non-disabled people...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28259536/disruption-of-re-intake-after-partial-withdrawal-of-gastric-food-contents-in-rats-lesioned-in-the-gelatinous-part-of-the-nucleus-of-the-solitary-tract
#3
María A Zafra, Antonio D Agüera, Filomena Molina, Amadeo Puerto
Sensory information from the upper gastrointestinal tract is critical in food intake regulation. Signals from different levels of the digestive system are processed to the brain, among other systems, via the vagus nerve, which mainly projects towards the nucleus of the solitary tract (NST). The objective of this study was to analyze the participation of the gelatinous part (SolG) of the NST in short-term food intake. One-third of the stomach food content was withdrawn at 5 min after the end of a meal, and food was then available ad libitum for different time periods...
March 2, 2017: Appetite
https://www.readbyqxmd.com/read/28227535/skills-based-evaluation-of-alternative-input-methods-to-command-a-semi-autonomous-electric-wheelchair
#4
Mario Rojas, Pedro Ponce, Arturo Molina, Mario Rojas, Pedro Ponce, Arturo Molina, Pedro Ponce, Mario Rojas, Arturo Molina
This paper presents the evaluation, under standardized metrics, of alternative input methods to steer and maneuver a semi-autonomous electric wheelchair. The Human-Machine Interface (HMI), which includes a virtual joystick, head movements and speech recognition controls, was designed to facilitate mobility skills for severely disabled people. Thirteen tasks, which are common to all the wheelchair users, were attempted five times by controlling it with the virtual joystick and the hands-free interfaces in different areas for disabled and non-disabled people...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28039649/or-fire-virtual-training-simulator-design-and-face-validity
#5
Denis Dorozhkin, Jaisa Olasky, Daniel B Jones, Steven D Schwaitzberg, Stephanie B Jones, Caroline G L Cao, Marcos Molina, Steven Henriques, Jinling Wang, Jeff Flinn, Suvranu De
BACKGROUND: The Virtual Electrosurgical Skill Trainer is a tool for training surgeons the safe operation of electrosurgery tools in both open and minimally invasive surgery. This training includes a dedicated team-training module that focuses on operating room (OR) fire prevention and response. The module was developed to allow trainees, practicing surgeons, anesthesiologist, and nurses to interact with a virtual OR environment, which includes anesthesia apparatus, electrosurgical equipment, a virtual patient, and a fire extinguisher...
December 30, 2016: Surgical Endoscopy
https://www.readbyqxmd.com/read/27979115/green-synthesis-of-%C3%AE-sitostanol-esters-catalyzed-by-the-versatile-lipase-sterol-esterase-from-ophiostoma-piceae
#6
María Molina-Gutiérrez, Neumara L S Hakalin, Leonor Rodríguez-Sanchez, Alicia Prieto, María Jesús Martínez
β-sitostanol esters, used as dietary complement for decreasing cholesterol absorption, have been synthesized at 28°C via direct esterification or transesterification catalyzed by the versatile lipase/sterol esterase from the ascomycete fungus O. piceae. Direct esterification was conducted in biphasic isooctane: water systems containing 10mM β-sitostanol and lauric or oleic acid as acyl donors, reaching 90% esterification in 3h with the recombinant enzyme. The use of molar excesses of the free fatty acids did not improve direct esterification rate, and the enzyme did not convert one of the two fatty acids preferentially when both were simultaneously available...
April 15, 2017: Food Chemistry
https://www.readbyqxmd.com/read/27689420/a-novel-minimally-invasive-dorsolateral-tubular-partial-odontoidectomy-and-autologous-bone-augmentation-to-treat-dens-pseudarthrosis-cadaveric-3d-virtual-simulation-study-and-technical-report
#7
Eleftherios Archavlis, Lucas Serrano, Eike Schwandt, Amr Nimer, Moisés Felipe Molina-Fuentes, Tamim Rahim, Maximilian Ackermann, Angelika Gutenberg, Sven Rainer Kantelhardt, Alf Giese
OBJECTIVE The goal of this study was to demonstrate the clinical and technical nuances of a minimally invasive, dorsolateral, tubular approach for partial odontoidectomy, autologous bone augmentation, and temporary C1-2 fixation to treat dens pseudarthrosis. METHODS A cadaveric feasibility study, a 3D virtual reality reconstruction study, and the subsequent application of this approach in 2 clinical cases are reported. Eight procedures were completed in 4 human cadavers. A minimally invasive, dorsolateral, tubular approach for odontoidectomy was performed with the aid of a tubular retraction system, using a posterolateral incision and an oblique approach angle...
February 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/27610620/elevated-cellular-pd1-pd-l1-expression-confers-acquired-resistance-to-cisplatin-in-small-cell-lung-cancer-cells
#8
Fei Yan, Jiuxia Pang, Yong Peng, Julian R Molina, Ping Yang, Shujun Liu
Although small cell lung cancer (SCLC) is highly responsive to chemotherapies (e.g., cisplatin-etoposide doublet), virtually almost all responsive SCLC patients experience disease recurrence characterized by drug resistance. The mechanisms underlying cisplatin resistance remain elusive. Here we report that cell-intrinsic expression of PD1 and PD-L1, two immune checkpoints, is required for sustained expansion of SCLC cells under cisplatin selection. Indeed, PD1 and PD-L1 were expressed at a higher level in lung cancer cell lines, tumor tissues, and importantly, in SCLC cells resistant to cisplatin (H69R, H82R), when compared to respective controls...
2016: PloS One
https://www.readbyqxmd.com/read/27350460/customized-monitoring-and-interaction-devices-in-virtual-environments-for-upper-limb-rehabilitation-after-brain-injury
#9
Julio Ontiveros-Ravell, Fernando Molina, Maria Almenara-Masbernat, Ignasi Soriano, Eloy Opisso, M Elena Hernando, Josep Maria Tormos, Josep Medina, Enrique J Gómez
This paper introduces a new approach for upper limb neurorehabilitation based on customized devices for monitoring and interacting with virtual environments. A proof-of-concept test involving eight patients at the Guttmann Neurorehabilitation Hospital shows patient's good acceptance and usability scores and demonstrates the technically feasibility of the devices. The final goal is to achieve a more personalized, monitored, intensive and ecological rehabilitation procedures for ABI patients.
2016: Studies in Health Technology and Informatics
https://www.readbyqxmd.com/read/27046559/virtual-airway-skills-trainer-vast-simulator
#10
Doga Demirel, Alexander Yu, Tansel Halic, Ganesh Sankaranarayanan, Adam Ryason, David Spindler, Kathryn L Butler, Caroline Cao, Emil Petrusa, Marcos Molina, Dan Jones, Suvranu De, Marc Demoya, Stephanie Jones
This paper presents a simulation of Virtual Airway Skill Trainer (VAST) tasks. The simulated tasks are a part of two main airway management techniques; Endotracheal Intubation (ETI) and Cricothyroidotomy (CCT). ETI is a simple nonsurgical airway management technique, while CCT is the extreme surgical alternative to secure the airway of a patient. We developed identification of Mallampati class, finding the optimal angle for positioning pharyngeal/mouth axes tasks for ETI and identification of anatomical landmarks and incision tasks for CCT...
2016: Studies in Health Technology and Informatics
https://www.readbyqxmd.com/read/26590044/a-hierarchical-task-analysis-of-cricothyroidotomy-procedure-for-a-virtual-airway-skills-trainer-simulator
#11
Doga Demirel, Kathryn L Butler, Tansel Halic, Ganesh Sankaranarayanan, David Spindler, Caroline Cao, Emil Petrusa, Marcos Molina, Daniel B Jones, Suvranu De, Marc A deMoya
BACKGROUND: Despite the critical importance of cricothyroidotomy (CCT) for patient in extremis, clinical experience with CCT is infrequent, and current training tools are inadequate. The long-term goal is to develop a virtual airway skills trainer that requires a thorough task analysis to determine the critical procedural steps, learning metrics, and parameters for assessment. METHODS: Hierarchical task analysis is performed to describe major tasks and subtasks for CCT...
September 2016: American Journal of Surgery
https://www.readbyqxmd.com/read/26013068/computer-guided-implant-surgery-and-immediate-loading-with-a-modifiable-radiographic-template-in-a-patient-with-partial-edentulism-a-clinical-report
#12
Alejandro Lanis, Miguel Padial-Molina, Rami Gamil, Orlando Alvarez del Canto
Computer-guided implant surgery in fresh extraction sites is an underdeveloped procedure. The presence of teeth that will be extracted makes the creation of an appropriate radiographic template for virtual simulation of the rehabilitation impossible. A modified radiographic template is presented to define a digital restorative simulation for the maxillary rehabilitation of a patient with partial edentulism. This modification enables 3-dimensional prosthetic virtual information in regions where teeth will be extracted...
September 2015: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/25682472/postnatal-arsenic-exposure-and-attention-impairment-in-school-children
#13
Miguel Rodríguez-Barranco, Fernando Gil, Antonio F Hernández, Juan Alguacil, Andres Lorca, Ramón Mendoza, Inmaculada Gómez, Isabel Molina-Villalba, Beatriz González-Alzaga, Clemente Aguilar-Garduño, Diane S Rohlman, Marina Lacasaña
Over the last few decades there has been an increased concern about the health risks from exposure to metallic trace elements, including arsenic, because of their potential neurotoxic effects on the developing brain. This study assessed whether urinary arsenic (UA) levels are associated with attention performance and Attention-Deficit/Hyperactivity Disorder (ADHD) in children living in an area with high industrial and mining activities in Southwestern Spain. A cross-sectional study was conducted on 261 children aged 6-9 years...
January 2016: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/25642782/racial-ethnic-differences-in-identity-and-mental-health-outcomes-among-young-sexual-minority-women
#14
Kimberly F Balsam, Yamile Molina, Jessica A Blayney, Tiara Dillworth, Lindsey Zimmerman, Debra Kaysen
Previous research suggests that sexual minorities are at greater risk for trauma exposure, mental health problems, and substance use. To date, few studies have examined racial/ethnic differences among sexual minorities in relation to health-related behaviors and outcomes. Furthermore, studies of racial/ethnic differences among young adult sexual minority women (SMW) are virtually nonexistent. The current study adds to the previous literature by exploring differences in trauma exposure, sexual identity, mental health, and substance use in a nonprobability national sample of young adult SMW...
July 2015: Cultural Diversity & Ethnic Minority Psychology
https://www.readbyqxmd.com/read/25426382/intraoral-approach-and-stereolithographic-guided-large-mandibular-reconstruction-with-fibula-free-flap
#15
Artur Diaz-Carandell, Eugenia Agut-Busquet, Juan Molina-Montes, Oscar Escuder-LaTorre
The reconstruction of mandibular defects has always been of great concern, and it still represents a challenge for head-and-neck reconstructive surgeons. The mandible plays a major role in mastication, articulation, swallowing, respiration, and facial contour. Thus, when undertaking mandibular reconstruction, restoration of both function and cosmetics should be considered as the measure of success. Microsurgical reconstruction is the gold-standard method to repair a segmental mandibular defect. Reconstruction of sizeable defects often needs a large neck incision, leading to unsatisfactory cosmetic outcomes...
August 2014: Plastic and Reconstructive Surgery. Global Open
https://www.readbyqxmd.com/read/25399408/virtual-reality-using-games-for-improving-physical-functioning-in-older-adults-a-systematic-review
#16
REVIEW
Karina Iglesia Molina, Natalia Aquaroni Ricci, Suzana Albuquerque de Moraes, Monica Rodrigues Perracini
The use of virtual reality through exergames or active video game, i.e. a new form of interactive gaming, as a complementary tool in rehabilitation has been a frequent focus in research and clinical practice in the last few years. However, evidence of their effectiveness is scarce in the older population. This review aim to provide a summary of the effects of exergames in improving physical functioning in older adults. A search for randomized controlled trials was performed in the databases EMBASE, MEDLINE, PsyInfo, Cochrane data base, PEDro and ISI Web of Knowledge...
2014: Journal of Neuroengineering and Rehabilitation
https://www.readbyqxmd.com/read/25137722/identifying-virtual-3d-geometric-shapes-with-a-vibrotactile-glove
#17
Jonatan Martínez, Arturo García, Miguel Oliver, José Pascual Molina, Pascual González
The emergence of off-screen interaction devices is bringing the field of virtual reality to a broad range of applications where virtual objects can be manipulated without the use of traditional peripherals. However, to facilitate object interaction, other stimuli such as haptic feedback are necessary to improve the user experience. To enable the identification of virtual 3D objects without visual feedback, a haptic display based on a vibrotactile glove and multiple points of contact gives users an enhanced sensation of touching a virtual object with their hands...
January 2016: IEEE Computer Graphics and Applications
https://www.readbyqxmd.com/read/25110698/upper-limb-posture-estimation-in-robotic-and-virtual-reality-based-rehabilitation
#18
Camilo Cortés, Aitor Ardanza, F Molina-Rueda, A Cuesta-Gómez, Luis Unzueta, Gorka Epelde, Oscar E Ruiz, Alessandro De Mauro, Julian Florez
New motor rehabilitation therapies include virtual reality (VR) and robotic technologies. In limb rehabilitation, limb posture is required to (1) provide a limb realistic representation in VR games and (2) assess the patient improvement. When exoskeleton devices are used in the therapy, the measurements of their joint angles cannot be directly used to represent the posture of the patient limb, since the human and exoskeleton kinematic models differ. In response to this shortcoming, we propose a method to estimate the posture of the human limb attached to the exoskeleton...
2014: BioMed Research International
https://www.readbyqxmd.com/read/24575410/extended-endoscopic-endonasal-approaches-for-cerebral-aneurysms-anatomical-virtual-reality-and-morphometric-study
#19
Alberto Di Somma, Matteo de Notaris, Vita Stagno, Luis Serra, Joaquim Enseñat, Isam Alobid, Joan San Molina, Joan Berenguer, Paolo Cappabianca, Alberto Prats-Galino
INTRODUCTION: The purpose of the present contribution is to perform a detailed anatomic and virtual reality three-dimensional stereoscopic study in order to test the effectiveness of the extended endoscopic endonasal approaches for selected anterior and posterior circulation aneurysms. METHODS: The study was divided in two main steps: (1) simulation step, using a dedicated Virtual Reality System (Dextroscope, Volume Interactions); (2) dissection step, in which the feasibility to reach specific vascular territory via the nose was verified in the anatomical laboratory...
2014: BioMed Research International
https://www.readbyqxmd.com/read/24211750/comparison-of-cost-utility-between-automated-peritoneal-dialysis-and-continuous-ambulatory-peritoneal-dialysis
#20
COMPARATIVE STUDY
Laura Cortés-Sanabria, Carlos A Paredes-Ceseña, Rebeca M Herrera-Llamas, Yolanda Cruz-Bueno, Herman Soto-Molina, Leonardo Pazarín, Margarita Cortés, Héctor R Martínez-Ramírez
BACKGROUND AND AIMS: The use of automated peritoneal dialysis (APD) is increasing compared to continuous ambulatory peritoneal dialysis (CAPD). Surprisingly, little data about health benefits and cost of APD exist, and virtually no information comparing the cost-utility between CAPD and APD is available. We undertook this study to evaluate and compare the health-related quality of life (HRQOL) and cost-utility indexes in patients on CAPD vs. APD METHODS: This was a prospective cohort of patients initiating dialysis (2008-2009)...
November 2013: Archives of Medical Research
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