Hepaticae of Cerro Venamo, Venezuela, collected by J. Steyermark

A revision of herbarium material (NY) from Cerro Venamo, Venezuela (5°59’ N, 61°23’ W, 1890 m) yielded 77 hepatic species in 44 genera and 13 families. Most species have a neotropical distribution (75,32%), 6,49%, are pantropical and 9,09% are reported only from the tepuis

Producción cooperativa de materiales hipermedia en espacios compartidos de trabajo: un caso de enseñanza de la Química

En este artículo se presenta una investigación educativa sobre una experiencia de innovación llevada a cabo durante tres cursos escolares, en la que el alumnado del Ciclo Formativo de Química Ambiental ha producido, en grupos cooperativos, material hipermedia sobre el tema de 'iones en agua' utilizando un editor HTML gratuito y con el soporte informático de una plataforma de espacios compartidos de trabajo, igualmente gratuita. El alumnado, mediante una encuesta, ha mostrado un alto grado de aceptación hacia la producción de materiales hipermedia y al trabajo en grupos cooperativos

Una experiència amb entorns telemàtics cooperatius a la classe de química

L'objectiu d'aquesta comunicació és descriure una experiència innovadora sobre treball cooperatiu on-line duta a terme amb els estudiants del CFGS de Química Ambiental utilitzant un entorn telemàtic cooperatiu gratuït "Synergeia". També es posa a l'abast del professorat uns detallats tutorials d'aquesta eina telemàtica per tal que la puguin utilitzar a les seves classes i aprofitar-ne el potencial educatiu

Optimización metodológica de entornos telemáticos cooperativos (bscw y synergeia) como recursos didácticos de la química en la producción de hipermedia

En este artículo se describe el estudio de optimización metodológica de dos entornos telemáticos cooperativos, BSCW y Synergeia, en el área de la Didáctica de la Química. Estas herramientas, gratuitas para usos educativos, facilitan la cooperación entre personas que no coinciden en el espacio y/o tiempo y se basan en espacios compartidos de trabajo. El estudio comprende dos fases. En la primera, el alumnado del CFGS de Química Ambiental ha producido, en grupos cooperativos, proyectos hipermedia sobre iones en agua y ha completado y, respondido a una serie de cuestionarios Likert y de preguntas sobre la experiencia. En la segunda fase, se han analizado las respuestas obtenidas y de acuerdo con las mismas, se han creado unos tutoriales de los entornos, para estudiantes y para el profesorado, que se han ido modificando a partir del feedback aportado por docentes que utilizaron en sus clases versiones preliminares de los mismos.The main goal of this article is to describe the methodological optimization study of two cooperative online environments, BSCW & Synergeia, in the fi eld of Chemistry Education. These tools, free for education purposes, are shared workspace-based groupware that enable cooperation over the Web. We present results from a two-phase study. During the first one, students from a technical institute have produced cooperative hypermedia projects about «ions in water», and have answered and completed a series of questions and Likert questionnaires. During the second phase, once results have been analyzed, we created student guides and teacher tutorials. These guides have been modified with the feedback received from teachers who used the preliminary versions of them in their classes

La atención a la diversidad en las prácticas de laboratorio de química : los niveles de abertura

El objetivo de este trabajo es describir una experiencia didáctica en la que se han utilizado los niveles de abertura como método constructivista de atención a la diversidad en las actividades prácticas de química. En el caso de los estudiantes de ciclos formativos de grado superior, esta diversidad se debe, principalmente, a las diferentes vías de acceso a dichos ciclos: título de bachillerato (con o sin formación en química), examen de acceso o estudios universitarios previos.The purpose of this article is to describe a didactic experience in which the levels of openness have been used as a constructivismbased teaching method to take into account the different skills that Higher-Level Vocational Chemistry Training Education students show at the chemistry laboratory. That heterogeneity is mainly due to the different ways students can enroll the course: High School Diploma with or without chemistry training, entrance examination or previous university studies

La atención a la diversidad en las prácticas de laboratorio de química : los niveles de abertura

The purpose of this article is to describe a didactic experience in which the levels of openness have been used as a constructivismbased teaching method to take into account the different skills that Higher-Level Vocational Chemistry Training Education students show at the chemistry laboratory. That heterogeneity is mainly due to the different ways students can enroll the course: High School Diploma with or without chemistry training, entrance examination or previous university studies.El objetivo de este trabajo es describir una experiencia didáctica en la que se han utilizado los niveles de abertura como método constructivista de atención a la diversidad en las actividades prácticas de química. En el caso de los estudiantes de ciclos formativos de grado superior, esta diversidad se debe, principalmente, a las diferentes vías de acceso a dichos ciclos: título de bachillerato (con o sin formación en química), examen de acceso o estudios universitarios previos

Spider surgical system versus multiport laparoscopic surgery. Performance comparison on a surgical simulator

BACKGROUND: The rising interest towards minimally invasive surgery has led to the introduction of laparo-endoscopic single site (LESS) surgery as the natural evolution of conventional multiport laparoscopy. However, this new surgical approach is hampered with peculiar technical difficulties. The SPIDER surgical system has been developed in the attempt to overcome some of these challenges. Our study aimed to compare standard laparoscopy and SPIDER technical performance on a surgical simulator, using standardized tasks from the Fundamentals of Laparoscopic Surgery (FLS). METHODS: Twenty participants were divided into two groups based on their surgical laparoscopic experience: 10 PGY1 residents were included in the inexperienced group and 10 laparoscopists in the experienced group. Participants performed the FLS pegboard transfers task and pattern cutting task on a laparoscopic box trainer. Objective task scores and subjective questionnaire rating scales were used to compare conventional laparoscopy and SPIDER surgical system. RESULTS: Both groups performed significantly better in the FLS scores on the standard laparoscopic simulator compared to the SPIDER. Inexperienced group: Task 1 scores (median 252.5 vs. 228.5; p = 0.007); Task 2 scores (median 270.5 vs. 219.0; p = 0.005). Experienced group: Task 1 scores (median 411.5 vs. 309.5; p = 0.005); Task 2 scores (median 418.0 vs. 331.5; p = 0.007). Same aspects were highlighted for the subjective evaluations, except for the inexperienced surgeons who found both devices equivalent in terms of ease of use only in the peg transfer task. CONCLUSIONS: Even though the SPIDER is an innovative and promising device, our study proved that it is more challenging than conventional laparoscopy in a population with different degrees of surgical experience. We presume that a possible way to overcome such challenges could be the development of tailored training programs through simulation methods. This may represent an effective way to deliver training, achieve mastery and skills and prepare surgeons for their future clinical experience

Design for Online Deliberative Processes and Technologies: Towards a Multidisciplinary Research Agenda

There has been rapidly growing interest in studying and designing online deliberative processes and technologies. This SIG aims at providing a venue for continuous and constructive dialogue between social, political and cognitive sciences as well as computer science, HCI, and CSCW. Through an online community and a modified version of world cafe discussions, we contribute to the definition of the theoretical building blocks, the identification of a research agenda for the CHI community, and the network of individuals from academia, industry, and the public sector who share interests in different aspects of online deliberation.Comment: CHI'15 Extended Abstracts, Apr 18-23, 2015, Seoul, Republic of Korea, ACM 978-1-4503-3146-3/15/04, 4 page