oalib

Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99

Submit

Any time

2020 ( 1 )

2019 ( 11 )

2018 ( 15 )

2017 ( 17 )

Custom range...

Search Results: 1 - 10 of 9009 matches for " Guillermo Basulto-Elias "
All listed articles are free for downloading (OA Articles)
Page 1 /9009
Display every page Item
Safety Evaluation of Stop-Sign Mounted Beacons—A Cross-Sectional Study  [PDF]
Amrita Goswamy, Shauna Hallmark, Guillermo Basulto-Elias, Michael Pawlovich
Journal of Transportation Technologies (JTTs) , 2019, DOI: 10.4236/jtts.2019.91006
Abstract: Agencies in Iowa have utilized both overhead flashing beacons and stop-sign mounted beacons. Although several studies have shown that overhead flashing beacons are effective, some concerns have been raised about driver confusion. The main concern is that a driver may interpret a multiface flashing beacon with a red indication for their approach as an all-way stop control. As a result, the Iowa DOT has been advocating use of stop-sign mounted beacons rather than overhead flashing beacons. Since little information is available about this countermeasure, data for intersections with (treatment) and without (control) stop-sign mounted beacons were identified and a cross-sectional analysis conducted (due to few confirmable installation dates). Rural stop-controlled intersections with stop-sign mounted beacons in Iowa (USA) were identified (40 in total). Intersection characteristics such as number of approaches, intersection angle etc. were extracted. Additionally, characteristics of individual approaches such as roadway surface (gravel/paved), advanced stop-sign rumble strips, and advance signing were recorded. One or more control locations were manually selected for each treatment intersection based on matching roadway configuration, presence of lighting, advance stop line rumble strips, number of approaches, channelization, traffic volume, and proximity. Propensity scores were estimated to match 40 control locations for comparison. Negative binomial models for different injury combinations at nighttime and daytime were developed with an indicator variable for presence and absence of stop-sign mounted beacons. Presence of stop-sign mounted beacons was associated with a 5% - 54% reduction in nighttime crashes. Injury nighttime crashes decreased by 54% and total nighttime crashes reduced by 18%.
FASCITIS NECROTIZANTE DE ORIGEN ODONTOGéNICO: A PROPóSITO DE UN CASO
Pereira Dávalos,Concepción Isabel; Sánchez Acu?a,Guillermo; Basulto Varela,Felipe;
Revista Habanera de Ciencias M??dicas , 2008,
Abstract: the term necrotizing fasciitis is widely utilised to generically design gangrenous or necrotizing infections of a probable multibacterial ethiology. it is an uncommon soft tissue infection caused by violent bacteria which produce toxins and are capable of affecting the superficial fascia, subcutaneous tissue, subcutaneous adipose tissue with nerves, arteries and veins and the profound fascia. it is accompanied by local pain, fever and systemic toxicity. we review the topic and present the case diagnosed in our service as a post surgical facial odontogenic cellulites of the 38 that evolved to a necrotizing fasciitis of the neck and pectoral area.
FASCITIS NECROTIZANTE DE ORIGEN ODONTOGéNICO: A PROPóSITO DE UN CASO Necrotizing fasciitis of an odontogenic origin: Case presentation
Concepción Isabel Pereira Dávalos,Guillermo Sánchez Acu?a,Felipe Basulto Varela
Revista Habanera de Ciencias M??dicas , 2008,
Abstract: El término "fascitis necrotizante" es ampliamente utilizado para designar en forma genérica las infecciones necrotizantes o gangrenosas, de etiología típicamente poli-bacteriana, es una infección poco común de la partes blandas, usualmente causada por bacterias virulentas que producen toxinas y que se caracterizan por afectar a la fascia superficial, tejido subcutáneo, grasa subcutánea con nervios, arterias y venas y fascia profunda. Se acompa a de dolor local, fiebre y toxicidad sistémica. Se realiza una revisión actualizada del tema y la presentación de un caso diagnosticado en nuestro servicio con una celulitisfacial Odontógena posquirúrgica del 38, que evolucionó hacia una fascitis necrotizante de la porción inferior del cuello y región pectoral. The term Necrotizing fasciitis is widely utilised to generically design gangrenous or necrotizing infections of a probable multibacterial ethiology. It is an uncommon soft tissue infection caused by violent bacteria which produce toxins and are capable of affecting the superficial fascia, subcutaneous tissue, subcutaneous adipose tissue with nerves, arteries and veins and the profound fascia. It is accompanied by local pain, fever and systemic toxicity. We review the topic and present the case diagnosed in our service as a post surgical Facial Odontogenic Cellulites of the 38 that evolved to a necrotizing fasciitis of the neck and pectoral area.
Cutis laxa en una lactante
Vaillant Suárez,Guillermo; Rodríguez Verdecia,Odalis Esther; Pereira Gómez,Gabriela; Basulto García,Niuvis;
MEDISAN , 2012,
Abstract: the clinical case of an infant aged 18 months is described, who was attended in the outpatient department from "amistad argelia-cuba" ophthalmology hospital of the wilaya of djelfa in the people's democratic republic of algeria due to eyelid drooping. on physical examination coarse facies, hiperextensible and sagging, wrinkled lax skin with large folds were observed, as well as aging appearance, blepharochalasis and ectropion. there were not musculoskeletal changes, groin or umbilical hernia, or other gastrointestinal, genitourinary or cardiopulmonary manifestations. taking into account clinical characteristics it was concluded that the patient presented with cutis laxa.
Cutis laxa en una lactante Cutis laxa in an infant
Guillermo Vaillant Suárez,Odalis Esther Rodríguez Verdecia,Gabriela Pereira Gómez,Niuvis Basulto García
MEDISAN , 2012,
Abstract: Se describe el caso clínico de una lactante de 18 meses de edad, quien fue atendida en la consulta externa del Hospital Oftalmológico "Amistad Argelia-Cuba" de la Wilaya de Djelfa en la República Democrática y Popular de Argelia, por caída de los párpados. En el examen físico se observó facies tosca, piel laxa, arrugada, caída e hiperextensible, con grandes pliegues, así como aspecto de envejecimiento, blefarocalasia y ectropion. No se detectaron alteraciones musculoesqueléticas, hernia inguinal o umbilical, ni otras manifestaciones gastrointestinales, genitourinarias o cardiorrespiratorias. Por las características clínicas se concluyó que la paciente presentaba cutis laxa. The clinical case of an infant aged 18 months is described, who was attended in the Outpatient Department from "Amistad Argelia-Cuba" Ophthalmology Hospital of the Wilaya of Djelfa in the People's Democratic Republic of Algeria due to eyelid drooping. On physical examination coarse facies, hiperextensible and sagging, wrinkled lax skin with large folds were observed, as well as aging appearance, blepharochalasis and ectropion. There were not musculoskeletal changes, groin or umbilical hernia, or other gastrointestinal, genitourinary or cardiopulmonary manifestations. Taking into account clinical characteristics it was concluded that the patient presented with cutis laxa.
The articles of Babinski on his sign and the paper of 1898
Bruno Estanol,Horacio Senties-Madrid,Yolanda Elias,Guillermo Garcia
Neurology India , 2007,
Abstract: In 1896 Joseph Franηois Felix Babinski described for the first time the phenomenon of the toes; nevertheless in this first paper he simply described extension of all toes with pricking of the sole of the foot. It was not until the second paper of 1898 that he specifically described the extension of the hallux with strong tactile stimulation (stroking) of the lateral border of the sole. Babinski probably discovered his sign by a combination of chance observation and careful re-observation and replication. He also had in mind practical applications of the sign, particularly in the differential diagnosis with hysteria and in medico-legal areas. Several of the observations and physiopathological mechanisms proposed by Babinski are still valid today, e.g., he realized since 1896 that the reflex was part of the flexor reflex synergy and observed that several patients during the first hours of an acute cerebral or spinal insult had absent extensor responses. He also found that most patients with the abnormal reflex had weakness of dorsiflexion of the toes and ankles and observed a lack of correlation between hyperactive myotatic reflexes and the presence of an upgoing hallux. He discovered that not all patients with hemiplegia or paraplegia had the sign but thought erroneously that some normal subjects could have an upgoing toe. Between 1896 and 1903 Babinski continued to think on the sign that bears his name and enrich its semiological and physiopathological value.
Event-based Camera Pose Tracking using a Generative Event Model
Guillermo Gallego,Christian Forster,Elias Mueggler,Davide Scaramuzza
Computer Science , 2015,
Abstract: Event-based vision sensors mimic the operation of biological retina and they represent a major paradigm shift from traditional cameras. Instead of providing frames of intensity measurements synchronously, at artificially chosen rates, event-based cameras provide information on brightness changes asynchronously, when they occur. Such non-redundant pieces of information are called "events". These sensors overcome some of the limitations of traditional cameras (response time, bandwidth and dynamic range) but require new methods to deal with the data they output. We tackle the problem of event-based camera localization in a known environment, without additional sensing, using a probabilistic generative event model in a Bayesian filtering framework. Our main contribution is the design of the likelihood function used in the filter to process the observed events. Based on the physical characteristics of the sensor and on empirical evidence of the Gaussian-like distribution of spiked events with respect to the brightness change, we propose to use the contrast residual as a measure of how well the estimated pose of the event-based camera and the environment explain the observed events. The filter allows for localization in the general case of six degrees-of-freedom motions.
Upper Cervical Spine Infection. Complication of Hypopharyngeal Injury  [PDF]
Ghassan Skaf, Elias Elias
International Journal of Otolaryngology and Head & Neck Surgery (IJOHNS) , 2016, DOI: 10.4236/ijohns.2016.52016
Abstract: Background: We describe a rare case of Candida albicans retropharyngeal infection with upper cervical spondylodiscitis associated with epidural abscess triggered by ingestion of a chicken bone. Case Description: A 63-year-old woman presented with posterior neck and bilateral shoulders pain three weeks after choking on a 2-centimeter chicken bone. Magnetic resonance imaging (MRI) revealed spondylodiscitis and epidural abscess with significant spinal cord compression at C2 and C3 levels. A Barium swallow showed a focal disruption of the posterior wall of the esophagus. A posterior upper cervical fixation (C2-C5) was initially performed. One week later an anterior decompressive procedure was carried out followed by iliac crest bony fusion, and repair of the esophageal defect. Intra-operative cultures showed heavy growth of Candida albicans. After a transitory post-operative neurologic worsening, and after six weeks of appropriate antifungal therapy, the patient achieved a full clinical and radiologic recovery. Conclusion: Prompt surgical debridement, fusion and stabilization combined with adequate antimicrobial agents are necessary to guarantee a good outcome and reverse the neurological deficits.
Construcción de valor territorial en el imaginario urbano
Oscar F. Basulto Gallegos
Revista de Investigaciones Políticas y Sociológicas (RIPS) , 2012,
Abstract: El presente artículo busca dar a conocer la relevancia que puede tener para elaborar una estrategia de planificación territorial, el estudio de los fenómenos societales a través de los imaginarios sociales y urbanos. Se analiza la necesidad de contar con una ciudadanía más activa, cohesionada y comprometida con los retos de su localidad, a través de un espíritu de participación colectiva y cooperación permanente, orientado hacia la gestión, acción y cumplimiento de objetivos de bien comunitario, en distintos ámbitos del quehacer. Asimismo, se describen elementos, eventualmente presentes en un territorio, a tener en consideración al momento de trabajar en esta línea de investigación. Es decir, resignificando los procesos sociales y sus imaginarios urbanos.
Minimizing Complementary Pivots in a Simplex-Based Solution Method for a Quadratic Programming Problem  [PDF]
Elias Munapo
American Journal of Operations Research (AJOR) , 2012, DOI: 10.4236/ajor.2012.23037
Abstract: The paper presents an approach for avoiding and minimizing the complementary pivots in a simplex based solution method for a quadratic programming problem. The linearization of the problem is slightly changed so that the simplex or interior point methods can solve with full speed. This is a big advantage as a complementary pivot algorithm will take roughly eight times as longer time to solve a quadratic program than the full speed simplex-method solving a linear problem of the same size. The strategy of the approach is in the assumption that the solution of the quadratic programming problem is near the feasible point closest to the stationary point assuming no constraints.
Page 1 /9009
Display every page Item


Home
Copyright © 2008-2017 Open Access Library. All rights reserved.