Eficacia del programa de enseñanza activa en las estrategias de aprendizaje de los estudiantes de la facultad de ciencias de la educación de la Universidad Nacional Hermilio Valdizán, Huánuco – 2012

The present research had an objective: To determine the effectivenessthathasactive teaching program in learning strategies among students inthe Faculty ofEducation Sciences of theHermilioValdizán University, Huanuco - 2012.Towhichwe worked witha sample of 78students enrolled in the2nd grade of study, these students aredivided in two groups: Basic EducationandSecondary Education42 and36, the first was the control group and the secondexperimentalgroup. The researchdeveloped isApplied. The designthatwas appliedwas theTwoGroupsNotEquivalentorEquivalentControl Groupnot(or notRandomizedControlGroup). Was appliedto the experimental group the Active TeachingProgram. The results were: the learning strategiesbefore andafter the interventioninthe experimental groupwas compared withtheWilcoxontest, which is to compare thepositive and negativerangesofthe observed frequencies. 36rangesfoundpositive tonegative ranks0, which indicates astatisticallysignificant differenceofP ≤0.000. Therefore,it is assumed thatin the experimental groupafter the interventionofactive teaching program significantly increased scores onlearning strategies. Moreover,in the control groupwas foundpositive ranks18versus 14 negative ranksand10 draws which does not indicate astatisticallysignificant differencefinding aP ≤ 0.822. Therefore,it is assumed thatthe scoresremain constant with it demonstrated the effectiveness ofActiveLearning ProgramatLearningStrategies.La presente investigación tuvo como objetivo comprobar la efectividad que tiene el programa de enseñanza activa en las estrategias de aprendizaje en los estudiantes de la Facultad de Ciencias de la Educación de la Universidad Nacional Hermilio Valdizán, Huánuco – 2012. Para lo cual se trabajó con una muestra de 78 estudiantes matriculados en el Segundo Año de estudios, estos estudiantes están distribuidos en dos grupos: Educación Básica 42 y Educación Secundaria 36; el primero fue el grupo control y el segundo, el grupo experimental. El tipo de investigación desarrollado ha sido aplicada. El diseño que se aplicó fue el de dos grupos No Equivalentes o con Grupo Control no Equivalente. Se aplicó al grupo experimental el Programa de Enseñanza Activa. Los resultados obtenidos fueron: las estrategias de aprendizaje antes y después de la intervención en el grupo experimental, se contrastó con la Prueba de Wilcoxon, la cual consiste en comparar los rangos positivos y negativos de las frecuencias observadas. Se encontró 36 rangos positivos frente a 0 rangos  negativos, lo cual indica una diferencia significativa estadísticamente de P ≤ 0,000. Por tanto, se asume que en el grupo experimental, luego de la intervención del Programa Enseñanza Activa, se incrementó de manera importante las puntuaciones en las estrategias de aprendizaje. Por otro lado, en el grupo control se encontró 18 rangos positivos, frente a 14 rangos negativos y 10 empates, lo cual no indica una diferencia significativa estadísticamente encontrando una P ≤ 0,822. Por tanto, se asume que las puntuaciones se mantienen constantes; con lo que se demostró la eficacia del Programa de Enseñanza Activa en las Estrategias de Aprendizaje

Eficacia del programa de enseñanza activa en las estrategias de aprendizaje de los estudiantes universitarios

The present study aimed to: verify the effectiveness that has the Active Teaching Program in Learning Strategies students of the Faculty of Education Sciences of the National University Hermilio Valdizán, Huanuco - 2012. For which we worked with a sample of 78 students enrolled in the second year of studies, these students are divided into two groups: Basic Education and Secondary Education 42 36, the first was the control group and the experimental group second. The research developed is applied. The design was applied to two groups not equivalent or non-equivalent control group (or non-randomized control group). It was applied to the experimental group Active Teaching Program. The results were: learning strategies before and after the intervention in the experimental group was compared with the Wilcoxon test, which is to compare the positive and negative ranges of observed frequencies. 36 were found positive ranks against negative ranks 0, which indicates a statistically significant difference of P ≤ 0.000. Therefore, it is assumed that in the experimental group after the intervention of Active Teaching Program significantly increased scores on learning strategies. On the other hand, in the control group, 18 versus 14 positive ranks and 10 draws negative ranks was found, which does not indicate a significant difference statistically finding a P ≤ 0.822. Therefore, it is assumed that the scores are kept constant; so the effectiveness of Active Teaching Program in Learning Strategies showed.La presente investigación tuvo como objetivo: Comprobar la Efectividad que tiene el Programa de Enseñanza Activa en las Estrategias de Aprendizaje en los estudiantes de la Facultad de Ciencias de la Educación de la Universidad Nacional Hermilio Valdizán, Huánuco – 2012. Para lo cual se trabajó con una muestra de 78 estudiantes matriculados en el segundo año de estudios, estos estudiantes están distribuidos en dos grupos: Educación Básica 42 y Educación Secundaria 36, el primero fue el grupo control y el segundo el grupo experimental. El tipo de investigación desarrollado es Aplicada. El diseño que se aplicó fue el de Dos Grupos No Equivalentes o con Grupo Control no Equivalente (o con Grupo Control no Aleatorizado). Se aplicó al grupo experimental el Programa de Enseñanza Activa. Los resultados obtenidos fueron: las estrategias de aprendizaje antes y después de la intervención en el grupo experimental, se contrastó con la Prueba de Wilcoxon, el cual consiste en comparar los rangos positivos y negativos de las frecuencias observadas. Se encontró 36 rangos positivos frente a 0 rangos negativos, lo cual indica una diferencia significativa estadísticamente de P ≤ 0,000. Por tanto, se asume que en el grupo experimental luego de la intervención del Programa   Enseñanza Activa se incrementó de manera importante las puntuaciones en las estrategias de aprendizaje. Por otro lado, en el grupo control, se encontró 18 rangos positivos frente a 14 rangos negativos y 10 empates, lo cual no indica una diferencia significativa estadísticamente encontrando una P ≤ 0,822. Por tanto, se asume que las puntuaciones se mantienen constantes; con lo que se demostró la eficacia del Programa de Enseñanza Activa en las Estrategias de Aprendizaje

Ranibizumab for the treatment of retinopathy of prematurity: systematic review and meta-analysis

Anti-VEGF drugs like ranibizumab can be used to treat retinopathy of prematurity (ROP) by halting the formation of abnormal blood vessels, or lasers can be used to burn the edges of the retina where these vessels are present. The objective is to compare the efficacy for ROP between ranibizumab and laser therapy. Material and methods: Electronic searches will be carried out in medical databases with key words and controlled vocabulary terms. Randomized controlled trials (RCT) will be assessed. The primary outcome will be the full ROP regression. Two reviewers will extract the data using predefined forms and, to assess the quality of the study, we will use RoB 2.0, the tool for randomized controlled trials developed by the Cochrane Collaboration. We used a combination of the inverse-variance approach and random-effects models for the meta-analysis. Results: The eyes of 182 preterm infants who had ranibizumab treatment were assessed in a total of 364 eyes, and 135 infants received laser therapy. The follow-up period was between 6 and 24 months. Ranibizumab was not associated with greater regression of ROP compared to laser therapy in preterm infants (RR: 1.09, CI 95%: 0.95–1.24; p: 0.22). Also, ranibizumab was not associated with recurrence of ROP compared to laser therapy in preterm infants (RR: 3.77, CI 95%: 0.55–25.81; p: 0.22). Conclusions: The efficacy of ranibizumab compared to laser is very uncertain in terms of ROP regression and decreased ROP recurrence in preterm infants. Systematic Review Registration: identifier PROSPERO (CRD42022324150)Revisión por pare

A ROS-based simulation and control framework for in-orbit multi-arm robot assembly operations

This paper develops a simulation and control framework for a multi-arm robot performing in-orbit assembly. The framework considers the robot locomotion on the assembled structure, the assembly planning, and multi-arm control. An inchworm motion is mimicked using a sequential docking approach to achieve locomotion. An RRT* based approach is implemented to complete the sequential assembly as well as the locomotion of MARIO across the structure. A semi-centralised controller model is used to control the robotic arms for these operations. The architecture uses MoveIt! libraries, Gazebo simulator and Python to simulate the desired locomotion and assembly tasks. The simulation results validate the viability of the developed framework

Evaluación de la calidad y el impacto del ambiente acuático del río higueras en la provincia de Huánuco – 2014

Natural surface water is one of the most widespread, abundant substances on Earth. It is an integralpart of most living things and is present in allowable amount. The naturally pure drinking water isessential for life; the great civilizations have flourished near adequate supplies of the liquid of life.Riparian vegetation plays Higueras river habitat and ecosystem functions. Influences on hydrology,soil science, physicochemical, chemical and microbiological water, so it is relevant in productivity andperformance, regulates temperature, filtering, retaining nutrients and providing habitat for aquatic communities. The study made some approaches on quality and perceived negative impact on waterquality conditions by measuring various physical, chemical and microbiological parameters. Gradientas described sampling stations throughout the course of the channels. The results indicate highpollution and high negative impacts, with the highest incidence in sites close proximity to coastalsettlements channels. The variables which show excessively high values such sites are the accountof bacteria, coliforms and detergent concentrations, physico-chemical parameters. The temporarynature of the water increases the severity of concentration of some contaminants. It is also remarkablethe impact of the deterioration of the natural quality of the physical environment all the way fromsurface waters of the river, mainly due to agricultural activities, extraction of construction materialsand domestic wastewater discharges affecting the biota aquatic. The results indicate that since thewater stations up even still have low impact on quality, while at stations downstream (Season 4, 5, 6,7, 8, 9, 10) are at high risk for contamination, which is confirms strong electric conductivity, turbidity,eutrophication and disappearance of aquatic life becoming to be a dead river, organoleptic, physicalchemical parameters, microbiological very high concentrations and the presence of ammonia andmineral salts that characterize hard water inadmissible for loved alive and human consumption.Las aguas superficiales naturales es una de las sustancias más difundidas, abundantes en PlanetaTierra. Es parte integrante de la mayoría de los seres vivientes y está presente en cantidadpermisibles. El agua natural pura y potable es fundamental para la vida; las grandes civilizaciones hanflorecido cerca de abastecimientos adecuados de ese líquido de la vida. La vegetación ribereña delrío Higueras desempeña funciones de hábitat y ecosistemas. Influye sobre la hidrología, edafología,físico- químico, químico y microbiológico de las aguas, por lo que es relevante en productividad yfuncionamiento, regula la temperatura, filtrando, reteniendo nutrientes y otorgando hábitat a lascomunidades acuáticas. El estudio realizó unas aproximaciones sobre la calidad y su impacto negativopercibidas sobre condiciones de calidad del agua mediante la determinación de varios parámetrosfísico-químicos y microbiológicos. El gradiente de muestreos en estaciones ya descritos por todo elcurso de los cauces. Los resultados indican grado alto de contaminación e impactos negativos altos,con mayor incidencia en los sitios de asentamientos humanos muy próximos a los cauces ribereños.Las variables analizadas las que muestran valores excesivamente elevadas en dichos sitios, son lacuenta de bacterias, coliformes y las concentraciones de detergentes, parámetros físico- químicos. Elcarácter temporal de las aguas incrementa la gravedad de concentración de algunos contaminantes.Asimismo, es notable el impacto del deterioro de la calidad natural del medio físico en todo eltrayecto de las aguas superficiales del río debido, principalmente, a las actividades agropecuarias,extracción de materiales de construcción y vertidos de aguas servidas domesticas que afectan a labiota acuática. Los resultados indican que desde las estaciones aguas arriba aun todavía presentanbajo impacto en calidad, mientras en las estaciones aguas abajo (estación 4, 5, 6, 7, 8, 9, 10) sonde alto riesgo por la contaminación, lo cual se ratifica con fuerte conductividad eléctrica, turbidez,eutrofización y desaparición de seres vivos acuáticos tornándose a ser un río muerto, parámetrosorganolépticos, físico-químicos, microbiológicos muy altos y la presencia de concentraciones deamoníaco y sales minerales que caracterizan agua dura inadmisibles para los seres vivos y consumohumano

Piecewise Rational Manifold Surfaces with Sharp Features

We present a construction of a piecewise rational free-form surface of arbitrary topological genus which may contain sharp features: creases, corners or cusps. The surface is automatically generated from a given closed triangular mesh. Some of the edges are tagged as sharp ones, defining the features on the surface. The surface is C s smooth, for an arbitrary value of s, except for the sharp features defined by the user. Our method is based on the manifold construction and follows the blending approach

Towards emotion recognition for virtual environments: an evaluation of eeg features on benchmark dataset

One of the challenges in virtual environments is the difficulty users have in interacting with these increasingly complex systems. Ultimately, endowing machines with the ability to perceive users emotions will enable a more intuitive and reliable interaction. Consequently, using the electroencephalogram as a bio-signal sensor, the affective state of a user can be modelled and subsequently utilised in order to achieve a system that can recognise and react to the user’s emotions. This paper investigates features extracted from electroencephalogram signals for the purpose of affective state modelling based on Russell’s Circumplex Model. Investigations are presented that aim to provide the foundation for future work in modelling user affect to enhance interaction experience in virtual environments. The DEAP dataset was used within this work, along with a Support Vector Machine and Random Forest, which yielded reasonable classification accuracies for Valence and Arousal using feature vectors based on statistical measurements and band power from the and waves and High Order Crossing of the EEG signal

Ranibizumab for the treatment of retinopathy of prematurity: systematic review and meta-analysis

Anti-VEGF drugs like ranibizumab can be used to treat retinopathy of prematurity (ROP) by halting the formation of abnormal blood vessels, or lasers can be used to burn the edges of the retina where these vessels are present. The objective is to compare the efficacy for ROP between ranibizumab and laser therapy.Material and methodsElectronic searches will be carried out in medical databases with key words and controlled vocabulary terms. Randomized controlled trials (RCT) will be assessed. The primary outcome will be the full ROP regression. Two reviewers will extract the data using predefined forms and, to assess the quality of the study, we will use RoB 2.0, the tool for randomized controlled trials developed by the Cochrane Collaboration. We used a combination of the inverse-variance approach and random-effects models for the meta-analysis.ResultsThe eyes of 182 preterm infants who had ranibizumab treatment were assessed in a total of 364 eyes, and 135 infants received laser therapy. The follow-up period was between 6 and 24 months. Ranibizumab was not associated with greater regression of ROP compared to laser therapy in preterm infants (RR: 1.09, CI 95%: 0.95–1.24; p: 0.22). Also, ranibizumab was not associated with recurrence of ROP compared to laser therapy in preterm infants (RR: 3.77, CI 95%: 0.55–25.81; p: 0.22).ConclusionsThe efficacy of ranibizumab compared to laser is very uncertain in terms of ROP regression and decreased ROP recurrence in preterm infants.Systematic Review Registrationidentifier PROSPERO (CRD42022324150)