School in the (im)possibility of future: Utopia and its territorialities     

Silvia M. Grinberg  Mercedes L. Machado 《Educational Philosophy and Theory》2019,51(3):322-334

Abstract

Utopia makes itself heard as Raphael voices a critique of who we are and configures that no-where which, paradoxically, we want to reach. We look to Deleuze and Guattari when we say that that critique can be envisioned as resistance to the present. In the passage from no-where to now-here, we revisit the territories of utopia as critique of our times, as a way to approach the question of who we are and who we want to be. In our view, education still rests on the image of a future that unfolds in the encounter with others. Education and its need/potential to enable tomorrows, to invent promises that look to places of desire, spaces that take shape as heterotopias. The notion of utopia is strained at root because defined as a no-where. At school, it is bound to the potential to create new possibilities and alternatives for life in the here and now. In this article, we will grapple with the work we do in university classrooms and in educational institutions in the slums on the outskirts of the city of Buenos Aires as a gateway from which to envision and to problematize the world. From there, we will approach the voices where other possibilities are conquered and other spaces created on the basis of the unpredictable, voices rooted in education and the need for it that produce and produce themselves in the tensions of that (im)possibility. In sum, wording the world as creation of worlds.  相似文献   

Teachers' memories of disciplinary control strategies from their own school days     

Renée DePalma  Pedro Membiela  Mercedes Suárez Pazos 《British Journal of Sociology of Education》2011,32(1):75-91

This article provides a vision of school disciplinary strategies as provided by childhood school memories of practicing or unemployed teachers. This narrative approach allows us to understand the school and its daily routines and rituals from an insiders' point of view, drawing upon the double perspective teachers employ when reflecting on their own experience as school children. The results of the study demonstrate a wide range of disciplinary practices coinciding with a Foucauldian disciplinary structure – a system of micro‐penalty governing time, activity, behavior, speech, the body, and sexuality. Analyzing the systemic regulation of bodies in schools can uncover institutional meanings and make them available for questioning, perhaps even negotiation. Recognizing the ways in which teachers' roles are inextricably bound with the disciplinary power relations of their institutions can help alleviate frustration and burnout and help teachers make more informed pedagogical decisions.  相似文献   

PORTAAL: A Classroom Observation Tool Assessing Evidence-Based Teaching Practices for Active Learning in Large Science,Technology, Engineering,and Mathematics Classes     

Sarah L. Eddy  Mercedes Converse  Mary Pat Wenderoth 《CBE life sciences education》2015,14(2)

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Motivation and Commitment to Volunteering in a Sample of Argentinian Adults: What is the Role of Generativity?     

Gastón Moisset de Espanés  Feliciano Villar  Andrés Urrutia  Rodrigo Serrat 《Educational gerontology》2015,41(2):149-161

This study explores the motivations and commitment to volunteering in a sample of Argentinian adults, and it analyzes the role of generativity. The sample consisted of 200 volunteers who were purposively selected from five volunteer organizations in the city of Córdoba (Argentina). Participants were assigned to three age groups: young volunteers (18–39 years old), middle-aged volunteers (40–59 years old), and older volunteers (60 or plus years old). The motivations of “values” and “understanding” obtained the highest scores. No relevant differences were found between age groups in the motivations and commitment to volunteering. Generative concern showed more predictive value for motivations and commitment to volunteering than any of the sociodemographic variables considered in the study. The results are discussed at the light of considering volunteering as an expression of generativity in different stages of the life cycle.  相似文献   

Teachers negotiating discourses of gender (in) equality: the case of equal opportunities reform in Andalusia     

Mercedes Cubero  Mª Ángeles Rebollo  Rosario Cubero  Rafael García  Luisa Vega 《Gender and education》2015,27(6):635-653

This article is focused on the analysis of the narratives produced by a group of teachers, experts in coeducation, while they were discussing their everyday activities. They are responsible for the implementation of a Plan for Gender Equality in public secondary schools in Andalusia (Spain). This study is based on contributions about doing gender view, according to which gender is not an attribute of individuals, but a way of making sense of interactions and practising a complex system as functioning on three levels: sociocultural, interactional, and individual. We use these levels to understand gender culture in schools through teachers’ discourse. Our interest lies particularly in the meanings, contradictions, difficulties, and conflicts experienced by expert teachers in co-education. Our study was based on group discussions with teachers in charge of the plan for equal opportunities between women and men in school settings. Results show teachers’ conflicts about meanings and how they are supposed to apply the Equality Plan. We observed interactional levels during these conflicts and analysed how teachers construct and validate their discourse.  相似文献   

Ten years of preanalytical monitoring and control: Synthetic Balanced Score Card Indicator     

Maria Salinas  Maite López-Garrigós  Emilio Flores  Ana Santo-Quiles  Mercedes Gutierrez  Javier Lugo  Rosa Lillo  Carlos Leiva-Salinas 《Biochemia medica : ?asopis Hrvatskoga dru?tva medicinskih biokemi?ara / HDMB》2015,25(1):49-56

Introduction

Preanalytical control and monitoring continue to be an important issue for clinical laboratory professionals. The aim of the study was to evaluate a monitoring system of preanalytical errors regarding not suitable samples for analysis, based on different indicators; to compare such indicators in different phlebotomy centres; and finally to evaluate a single synthetic preanalytical indicator that may be included in the balanced scorecard management system (BSC).

Materials and methods

We collected individual and global preanalytical errors in haematology, coagulation, chemistry, and urine samples analysis. We also analyzed a synthetic indicator that represents the sum of all types of preanalytical errors, expressed in a sigma level. We studied the evolution of those indicators over time and compared indicator results by way of the comparison of proportions and Chi-square.

Results

There was a decrease in the number of errors along the years (P < 0.001). This pattern was confirmed in primary care patients, inpatients and outpatients. In blood samples, fewer errors occurred in outpatients, followed by inpatients.

Conclusion

We present a practical and effective methodology to monitor unsuitable sample preanalytical errors. The synthetic indicator results summarize overall preanalytical sample errors, and can be used as part of BSC management system.Key words: Preanalytical phase, errors in laboratory medicine, balanced scorecard, patient safety  相似文献   

The relationship between strength asymmetries and jumping performance in professional volleyball players     

Pedro Schons  Rodrigo Gomes Da Rosa  Gabriela Fischer  Guilherme Pereira Berriel  Carolina Gassen Fritsch  Fábio Yuzo Nakamura 《Sports biomechanics / International Society of Biomechanics in Sports》2019,18(5):515-526

Knee peak torque (PT) is associated to jump performance in volleyball players. It is not clear whether muscle strength imbalances of the knee joint can influence jump performance. The purpose of study was to analyse the association between PT and knee muscular imbalances with jump performance in professional volleyball players. Eleven elite male volleyball players (90.3 ± 9.7 kg body mass and 1.94 ± 0.06 m height) were evaluated in an isokinetic dynamometer at speeds of 60, 180 and 300 deg/s. Muscle strength imbalances were obtained through calculation of contralateral deficit between limbs and the conventional ratio (hamstrings/quadriceps). Countermovement jump (CMJ) was performed on a force plate to calculate mechanical power and height. Association was found between knee extensor PT at 180 deg/s with CMJ power (r = 0.610, p = 0.046). Conventional ratio at 300 deg/s showed negative association with CMJ (r = ?0.656, p = 0.029). The optimal ratio between knee extensors PT in relation to the flexors PT is associated with the greater mechanical power in CMJ. Contralateral deficit does not seem to be associated with the CMJ performance. Considering the knee extensor PT is associated with CMJ power, our findings suggest that strength-based training in volleyball athletes should not omit the conventional muscle ratio.  相似文献   

Motor unit firing frequency of lower limb muscles during an incremental slide board skating test     

Tatiane Piucco  Rodrigo Bini  Masanori Sakaguchi  Fernando Diefenthaeler  Darren Stefanyshyn 《Sports biomechanics / International Society of Biomechanics in Sports》2017,16(4):540-551

This study investigated how the combination of workload and fatigue affected the frequency components of muscle activation and possible recruitment priority of motor units during skating to exhaustion. Ten male competitive speed skaters performed an incremental maximal test on a slide board. Activation of six muscles from the right leg was recorded throughout the test. A time-frequency analysis was performed to compute overall, high, and low frequency bands from the whole signal at 10, 40, 70, and 90% of total test time. Overall activation increased for all muscles throughout the test (p < 0.05 and ES > 0.80). There was an increase in low frequency (90 vs. 10%, p = 0.035, ES = 1.06) and a decrease in high frequency (90 vs. 10%, p = 0.009, ES = 1.38, and 90 vs. 40%, p = 0.025, ES = 1.12) components of gluteus maximus. Strong correlations were found between the maximal cadence and vastus lateralis, gluteus maximus and gluteus medius activation at the end of the test. In conclusion, the incremental skating test lead to an increase in activation of lower limb muscles, but only gluteus maximus was sensitive to changes in frequency components, probably caused by a pronounced fatigue.  相似文献   

Tracking of Gross Motor Coordination From Childhood Into Adolescence     

Rodrigo Antunes Lima  Anna Bugge  Karin Allor Pfeiffer  Lars Bo Andersen 《Research quarterly for exercise and sport》2017,88(1):52-59

Purpose: The purpose of this study was to analyze tracking and stability of motor coordination in children from age 6 years to ages 9 and 13 years. Method: Data were from the Copenhagen School Child Intervention Study. Motor coordination (MC) was measured using the körperkoordinationstest für Kinder (KTK) test. The crude performance score on every item was converted into a standardized “score” based on the original German reference study, which was used to generate a total standardized motor coordination (MQ) score. The MQ scores, which represented children's level of gross MC, were classified as low (MQ score < 85), normal (MQ score = 85–115), or high (MQ score>115). Pearson correlation was used to calculate the tracking coefficients of each KTK element and MQ score, and weighted kappa was used to analyze maintenance in MC classification groups. Mixed-effects logistic regression analyses were performed to examine the odds of remaining in the low MC group over time based on body mass index (BMI), weight, and height tertiles. Results: Tracking coefficients among the MQ score and each KTK element at different ages were moderate (r>.35). Children in the highest BMI and weight tertiles had a 5.44 and 5.15 times greater chance to be in the lower MC classification group during the 7-year follow-up, respectively, in comparison with children in their lowest tertiles. Conclusion: MC tracked moderately through childhood to early adolescence. Because heavier children had a greater chance to be in the lower MC group at older ages, intervention may be useful at earlier ages for those with lower MC and disadvantageous weight status.  相似文献   

Using matrix norms to estimate the direction of arrival of planar waves on an ULA     

Rodrigo P. Lemos  Jonas A. Kunzler  Diego F. Burgos B.  Mário J. de Souza  Hugo V.L. e Silva  Yroá R. Ferreira  Edna L. Flôres  Oliver Sander 《Journal of The Franklin Institute》2019,356(9):4949-4969

SEAD method estimates the direction-of-arrival angles on an uniform linear array based on the difference between the two largest singular values, what is called differential spectrum. Although it presented an outstanding performance, the ability to indicate the source positions was not elucidated yet. Inspired by the differential spectrum formulation we derived a total differential spectrum and found out that the matrix norm induced by the vector 2-norm of a modified spatial covariance matrix can be used to estimate the direction-of-arrival of multiple plane waves. Indeed we show that matrix norms are estimators and we propose their use instead of the singular value decomposition in SEAD-based methods. We present a general mathematical expression in order to explicit the operating principles of the proposed methods. Consequently, we were able to explain how the relation between the arriving and the search angles produces the larger peaks on the differential spectrum. To evaluate the important role played by matrix norms, a thousand experiments were carried out. They showed that the proposed approach proved to be as accurate as the previous SEAD-based methods, while providing a significant reduction on runtime. It also outperformed well-established methods like MODEX regarding the estimation error.  相似文献