Sequência didática com temas motivadores no ensino de física

This study is based on the design and development of a Didactic sequence in Physics for the first year of high school in a public school, involving structured activities on Astronomy topics, Astronautics and Aeronautics. In addition, it produced a didactic-pedagogic Tutorial for teachers to develop teaching-learning processes in Physics through activities with handmade rockets. These activities have been based on teaching moments of questioning, systematization and contextualization. In this context the understanding and the deepening of concepts and scientific and physical phenomena are related to everyday knowledge, in accordance with the historical-cultural theory, with the Three Pedagogic Moments, dialogicity and Information and Communication Technologies as instruments of triggering actions and motivation, like movies and applications in teaching Astronomy, Physics and Mathematics. The research activities were conduced by adopting a qualitative approach and included reports, questionnaires, semi-structured interviews and other notes. The development of the Didactic Sequence enabled a differentiated teaching and learning process, including aspects such as conceptualization, contextualization, flexibility, interdisciplinary and theoreticalexperimental relationship.

Horta escolar: temas geradores e os momentos pedagógicos no ensino de ciências

Science application has faced problems in the process of training and cognizant thinking subjects in their actions. Thus, this work is justified in order to reorganize the contents of this area of knowledge. Thus, the research entitled "Plantation School: generating themes and teaching moments in teaching of science" was developed with a group of 6th grade of elementary school, from the planting of vegetables in tires without usefulness, with purpose of building meanings and scientific concepts to students. This work was based on sociointeractionist perspective of Vygotsky (1996, 1998), education for thematic research Freire (1983, 1996) as well as in problem-solving situations identified by the methodology of Pedagogical Moments Delizoicov and Angoti (1992; 2002 ) which together corroborated for the construction of a proposed teaching and learning, curriculum reorganization and significance of scientific concepts. Thus, the project breaks in practice with the linearity of the contents, to develop and analyze themes mediated by pedagogical moments, in order to ascertain the contribution of this methodological resource for the teacher's work, with regard to the understanding of scientific concepts by students. Thus, lesson plans were built based on the study situation "Horta School" and Themes Generators "human interaction with the environment", "photosynthesis", "Ecology and Nutrition of living beings", culminating in the work proposal developed in the classroom. From these themes, the contents were worked through pedagogical moments, which are organized into three stages: questioning, organization / systematization of knowledge and application / contextualization of knowledge. Thus, within each Theme Generator activities were planned which resulted in the involvement of students in learning scientific concepts, such as the issue of sustainability, environmental pollution, nutrition of living beings and the decomposition of organic matter. This work led and motivated student participation in Themes generators, and allows greater interaction between teacher-student and student among his peers, through dialogism established in the classroom, which promoted a more meaningful learning for students.

Heart monitor in the Coronary intensive care unit at Douglas County hospital in Alexandria, Minnesota

Inscriptions: Verso: [stamped] Credit must be given to Leinwand from Monkmeyer Press Photo Service].

A prospective comparison of a noninvasive cardiac output monitor versus esophageal doppler monitor for goal-directed fluid therapy in colorectal surgery patients

Copyright © 2014 International Anesthesia Research Society.BACKGROUND: Goal-directed fluid therapy (GDFT) is associated with improved outcomes after surgery. The esophageal Doppler monitor (EDM) is widely used, but has several limitations. The NICOM, a completely noninvasive cardiac output monitor (Cheetah Medical), may be appropriate for guiding GDFT. No prospective studies have compared the NICOM and the EDM. We hypothesized that the NICOM is not significantly different from the EDM for monitoring during GDFT. METHODS: One hundred adult patients undergoing elective colorectal surgery participated in this study. Patients in phase I (n = 50) had intraoperative GDFT guided by the EDM while the NICOM was connected, and patients in phase II (n = 50) had intraoperative GDFT guided by the NICOM while the EDM was connected. Each patient's stroke volume was optimized using 250- mL colloid boluses. Agreement between the monitors was assessed, and patient outcomes (postoperative pain, nausea, and return of bowel function), complications (renal, pulmonary, infectious, and wound complications), and length of hospital stay (LOS) were compared. RESULTS: Using a 10% increase in stroke volume after fluid challenge, agreement between monitors was 60% at 5 minutes, 61% at 10 minutes, and 66% at 15 minutes, with no significant systematic disagreement (McNemar P > 0.05) at any time point. The EDM had significantly more missing data than the NICOM. No clinically significant differences were found in total LOS or other outcomes. The mean LOS was 6.56 ± 4.32 days in phase I and 6.07 ± 2.85 days in phase II, and 95% confidence limits for the difference were -0.96 to +1.95 days (P = 0.5016). CONCLUSIONS: The NICOM performs similarly to the EDM in guiding GDFT, with no clinically significant differences in outcomes, and offers increased ease of use as well as fewer missing data points. The NICOM may be a viable alternative monitor to guide GDFT.

La agenda de la seguridad en revisión : casos conmocionantes, temas y problemas públicos en el actual período democrático argentino (1983-2016)

El trabajo explora la emergencia de temas y la constitución de problemas públicos que integran la agenda de la seguridad en Argentina en la etapa democrática a partir de procesos vinculados a la problematización pública de muertes violentas constituidas como casos conmocionantes. Con estos fines, el análisis integra la reconstrucción en el registro de la acción pública de casos conmocionantes con una revisión de trabajos que desde las ciencias sociales abordan dimensiones de la muerte violenta y problemas vinculados a la agenda nacional de la seguridad. Como punto de llegada del análisis destacamos la capacidad que en la actualidad manifiesta la inseguridad para absorber e integrar dimensiones en tanto problema que se constituye como un guion cultural privilegiado para la comprensión de la violencia, que sintetiza sentidos sociales circulantes sobre el riesgo y que sirve de plataforma para la demanda política de amplios sectores de la ciudadanía.

Findings from the 2015 Institutional Real Estate Capital Allocations Monitor

Since 2013, the Baker Program in Real Estate and Hodes Weill & Associates have co-sponsored the Institutional Real Estate Capital Allocations Monitor (the “Allocations Monitor”). The Allocations Monitor was created to conduct a comprehensive annual assessment of institutional allocations to real estate investments through analyzing trends and collecting survey responses of institutional portfolios and allocations by region, type, and size of institution. The Allocations Monitor reports on the role of real estate investments in institutional portfolios, and the impact of institutional allocation trends on the investment management industry.

Use of time-resolved spectroscopy as a method to monitor carotenoids present in tomato extract obtained using ultrasound treatment

Introduction Compounds exhibiting antioxidant activity have received much interest in the food industry because of their potential health benefits. Carotenoids such as lycopene, which in the human diet mainly derives from tomatoes (Solanum lycopersicum), have attracted much attention in this aspect and the study of their extraction, processing and storage procedures is of importance. Optical techniques potentially offer advantageous non-invasive and specific methods to monitor them. Objectives To obtain both fluorescence and Raman information to ascertain if ultrasound assisted extraction from tomato pulp has a detrimental effect on lycopene. Method Use of time-resolved fluorescence spectroscopy to monitor carotenoids in a hexane extract obtained from tomato pulp with application of ultrasound treatment (583 kHz). The resultant spectra were a combination of scattering and fluorescence. Because of their different timescales, decay associated spectra could be used to separate fluorescence and Raman information. This simultaneous acquisition of two complementary techniques was coupled with a very high time-resolution fluorescence lifetime measurement of the lycopene. Results Spectroscopic data showed the presence of phytofluene and chlorophyll in addition to lycopene in the tomato extract. The time-resolved spectral measurement containing both fluorescence and Raman data, coupled with high resolution time-resolved measurements, where a lifetime of ~5 ps was attributed to lycopene, indicated lycopene appeared unaltered by ultrasound treatment. Detrimental changes were, however, observed in both chlorophyll and phytofluene contributions. Conclusion Extracted lycopene appeared unaffected by ultrasound treatment, while other constituents (chlorophyll and phytofluene) were degraded.

Recursos metodológicos utilizados por docentes de I y II ciclos de la educación general básica en la Dirección Regional de Heredia, al impartir los temas de probabilidad y estadística

Este artículo describe los métodos, técnicas de enseñanza y recursos didácticos, utilizados por una muestra de docentes de I y II Ciclo de la Educación General Básica en la Dirección Regional Educativa de Heredia al enseñar Probabilidad y Estadística, que surge como resultado de una investigación realizada en el 2009, en Costa Rica. Para obtener los datos necesarios se aplicó un cuestionario auto-administrado a dicha muestra de docentes. En relación con los métodos, dentro de los hallazgos más importantes se encontró una preferencia de los educadores entrevistados, hacia estrategias pedagógicas tradicionales (usan con mayor frecuencia los métodos: deductivo, expositivo, estudio de textos, colectivo). En cuanto a técnicas de enseñanza, se señalaron con uso frecuente la lluvia de ideas, las actividades lúdicas y el trabajo en grupos, que si bien son buenas herramientas para propiciar un proceso de enseñanza y aprendizaje en donde el estudiante interactúe con situaciones problemáticas, también pueden emplearse en lecciones tradicionales. La técnica elaboración de proyectos resultó de uso poco frecuente. Además, dentro los principales recursos didácticos elegidos por los docentes, para enseñar Probabilidad y Estadística, se destacan la pizarra y el material fotocopiado; aunque también se mencionaron las actividades lúdicas y el material concreto. Este artículo corresponde a parte de la investigación realizada en el proyecto Didáctica de la Probabilidad y la Estadística en primaria, adscrito y financiado por la Escuela de Matemática de la Universidad Nacional, bajo el código NCAG07.

Medición de la profundidad anestésica y memoria durante anestesia general mediante el cerebral state monitor (csm x06)

Este es un ensayo clínico controlado realizado en 327 pacientes ASA II, sometidas a cesárea, distribuidas aleatoriamente en dos grupos iguales para identificar las variaciones hemodinámicas y nivel metamérico, al aplicar Anestesia Intratecal con Lidocaína Isobárica al 2(AILI) comparada con Lidocaína Hiperbárica al 5(AILH), ambas a dosis de 80 mg. Resultados: la AILI, se mantuvo en determinadas metámeras sin sustancial variabilidad, comportamiento totalmente contrario a la AILH. Las diferencias estadísticas en la presión sistólica, diastólica, y frecuencia cardiaca, entre ambos tipos de anestesia no fueron significativas. La hipotensión se presentó en 32,9con AILI, y 54con AILH; siendo tratada con 2,26 mg (ñ 3.65) y 3,93 mg (ñ 4,26) de efedrina respectivamente. (p> 0.05). Con AILI se presentaron 4 casos de bloqueo raquídeo alto más dificultad respiratoria y, con AILH 3 casos, de los cuales solo 2 presentaron dificultad respiratoria. Conclusión: la AILI produce un bloqueo nervioso más predecible que la AILH. Los valores hemodinámicos y la incidencia de complicaciones, entre ambos anestésicos fueron semejantes

Orientación y apoyo en gestión administrativa de la Fundación Pro Desarrollo en Temas Sociales y Personas con Discapacidad

Bogotá (Colombia) : Universidad de La Salle. Facultad de Ciencias Administrativas y Contables. Programa de Administración de Empresas