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Fernández Morales, Cecilia,Iriarte Gómez, Fernando,Mejía Solano, Carmen,Revuelta Domínguez, Francisco Ignacio APEC국제교육협력원 2017 Asia-Pacific Cybereducation Journal Vol.13 No.2
In Peru, according to the Census of Students (ECE) carried out by the Ministry of Education at 2016 (MINEDU), there are sustained differences between learning goals in rural and urban schools. There are more than 20 thousand educational robotic kits distributed nationwide. It requires trained teachers to develop their digital competence and integrate these resources into the teaching-learning process. In this context, a virtual course was designed and executed, showing rural teachers how to plan learning sessions that integrate Information and Communication Technologies (ICT) in their pedagogical practice. The course was validated with 2500 registered teachers. In the first court, 300 did not log into the virtual classroom, 500 did not to complete the course, 1170 remained active, 534 successfully completed the course and 473 gained a certificate through the virtual platform. In the second court, there are 667-registered teachers. The conclusions of the experience indicate that it is possible to implement strategies for electronic learning aimed at rural teachers in a sustainable and cost - effective way using ICT, which spontaneously create virtual communities of collaborative learning, which support the process allowing implementation the "Knowledge Management". This experience will allow us to make recommendations for rural education policy in Peru (Fernández Morales, Iriarte Gómez, Mejía Solano, & Revuelta Domínguez, 2017).
Neuro-Fuzzy Modelling and Stable PD Controller for Angular Position in Steering Systems
Ramos-Fernández Julio C.,López-Morales Virgilio,Márquez-Vera Marco A.,Pérez Juan Manual Xicotencatl,Suarez-Cansino Joel 한국자동차공학회 2021 International journal of automotive technology Vol.22 No.6
The precision agriculture and soil tillage are tasks which can be achieved by Automated Tractors (AT) through the integration of several servomechanisms. In order to reach a high autonomy under various work conditions of the AT, control laws’ design and tuning are paramount. The aim of this work is to develop an angle position controller for steering systems applied to an AT. We introduce an automatic electronic steering system by using a fuzzy model, obtained through an Adaptive Neuro-Fuzzy Inference System (ANFIS) algorithm training. A proportional derivative (PD) controller is also tuned through a Takagi-Sugeno fuzzy model (T-S). Furthermore, several closed-loop stability tests were carried out, in numerical simulation and real-time implementation. The feasibility of our methodology is illustrated through the tracking of several angles’ profiles in a real test scenario. For the tracking of a trajectory or several set-points, we have obtained mean errors about 0.6545 and 0.8651 degrees, respectively. Some mechatronic integrations to convert a conventional tractor into a basic Autonomous Agriculture Off-road Tractor (AAOT) are also shown.
Sorption of BTEX on a nanoporous composite of SBA-15 and a calcined hydrotalcite
Sampieri Alvaro,Pérez-Osorio Gabriela,Hernández-Espinosa Miguel Ángel,Ruiz-López Irving Israel,Ruiz-Reyes Mayra,Arriola-Morales Janette,Narváez-Fernández Rocío Iliana 나노기술연구협의회 2018 Nano Convergence Vol.5 No.21
Benzene, toluene, ethylbenzene, and p-xylene (BTEX) are hazardous volatile organic compounds mostly released from fuel combustion, paint gas emissions, and biomass burning. In this work, it is studied the BTEX sorption influence on the surface reactivity of a new kind of nanoporous composite, prepared via an in situ functionalization of SBA-15 with a Mg–Al calcined hydrotalcite (HTC). During its preparation, Mg/Al mixed oxides are indeed formed and dispersed on the SBA-15 surface with non-blockage porosity. Furthermore, the physicochemical surface properties are exalted from its precursors and it is synergistically favorable for the BTEX sorption at low pressure and temperature.
Alfredo Hierro González,Julio César Fernández Travieso,Yoandy Hernández Casas,Susana Borges González,María de los Angeles Camacho Morales,Elena Ferrer Batallie,Anaisa Roja Carralera,Yenney Reyes Nuñez 대한내과학회 2024 The Korean Journal of Internal Medicine Vol.39 No.1
Background/Aims: Abexol is a mixture of primary aliphatic alcohols purified from beeswax (Apis mellifera), that produces anti-inflammatory, antioxidant and gastroprotective effects, as well as it is safe and well tolerated. To investigate and compare the efficacy and safety of Abexol (suspension versus tablets) in patients with gastrointestinal symptoms. Methods: Monocentric study, open-label, randomized design, with two parallel groups receiving Abexol tablets (150 mg/d) or Abexol suspension (75 mg/d) for 8 weeks. Primary efficacy variable (significant improvement in the total score of Gastrointestinal Symptom Rating Scale [GSRS]). Significant reduction in the intensity of the gastrointestinal-symptoms and the reduction in the consumption of antacids are considered secondary efficacy variable. Short form-36 (SF-36) quality of life questiongenonaire was evaluated as collateral variable. Data were analyzed as per intention to treat. Results: A significantly decrease in the overall score of the survey was observed with respect to the baseline level (p < 0.001) of 81.4% in the Abexol suspension group and 77.9% in the Abexol tablets group. At the end of the trial, most gastrointestinal- symptoms disappeared or reduced significantly. The frequency of consumption of neutralizing antacids was low. The significantly improvement in the perception of the state of health obtained in the Abexol is in correspondence with the improvement achieved in some of the components evaluate in the SF-36 questionnaire. Both treatments were safe and well tolerated. Conclusions: Abexol suspension showed efficacy and safety similar to Abexol tablets in patients with gastrointestinal symptoms, but using half the dose.
Somoza Maria Luisa,Prieto-Moreno Pfeifer Ana,Martín-Pedraza Laura,Victorio Puche Laura,Esteban Rodríguez Angel,Blanca-López Natalia,Eva Fernández González Abel,Fernández-Caldas Enrique,Morán Morales M 대한천식알레르기학회 2021 Allergy, Asthma & Immunology Research Vol.13 No.6
The most important peach fruit allergen is Pru p 3, followed by Pru p 1, Pru p 4, and Pru p 7. We aimed to assess their role in subjects with peach fruit-induced allergy (anaphylaxis and OAS) and compare skin prick tests (SPT) vs. specific immunoglobulin E (sIgE) for predicting anaphylaxis. We also selected a control group. SPT included prevalent inhalant and plant food allergens plus peach peel extract. The sIgE to Pru p 1, Pru p 3, Pru p 4, and Pru p 7 were quantified. Compared with controls (n = 42), cases (n = 41) were younger (P = 0.003), more frequently female (P < 0.05) and had higher SPT positivity to peach peel (44% vs. 2.4%, P < 0.0001). There were significant differences in sensitization to several pollens: Olea europaea, Artemisia vulgaris, Prunus persica, Platanus acerifolia (all P < 0.001); and fruits: apple (P < 0.04), peanut (P < 0.002), tomato (P < 0.005), and melon (P < 0.05). Pru p 3 sIgE was detected in 61% of all cases (85% anaphylaxis and 38% OAS; P < 0.01 each) and 5% of controls (P < 0.001). Pru p 4 sIgE was present in 19% of cases and 7% of controls. The sIgE to Pru p 1 and Pru p 7 were not found. The odds ratio to predict anaphylaxis for peach peel SPT was 113 (confidence interval [CI], 20–613; P < 0.0001); for sIgE to Pru p 3, 22 (CI, 5.3–93; P < 0.0001); and for SPT positivity to selected plant food allergens, 5 (CI, 1–19; P < 0.05). In our study group, SPT with peel peach extract was a better predictor of anaphylaxis than Pru p 3 sIgE or other variables considered. The role of sIgE to Pru p 1, Pru p 4, and Pru p 7 seemed negligible.
Pleural effusion secondary to minoxidil in a peritoneal dialysis patient
Palomar, Rosa,Morales, Pedro,Sanz de Castro, Saturnino,Tasis, Ana,Rodrigo, Emilio,Piñ,era, Celestino,Ruiz, Juan Carlos,Ferná,ndez-Fresnedo, Gema,Martin de Francisco, Angel Luis,Arias, Manu Oxford University Press 2004 Nephrology, dialysis, transplantation Vol.19 No.10