BOOK REVIEWS     

Eddy A. Ruiz 《Community College Journal of Research & Practice》2013,37(7):599-604

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Teaching the Teachers: Dismantling Racism and Teaching for Social Change     

Elsa Cantú Ruiz  Norma E. Cantú 《The Urban Review》2013,45(1):74-88

As a response to the attacks on ethnic studies in Arizona and the move to ban certain books, this essay presents theoretical and pedagogical reflections from two professors and addresses the ways teacher preparation programs can offer a resistance. Based on the authors’ experience in teacher preparation programs, one in the humanities and the other in mathematics, they discuss fundamental concepts that undergird social change methodology from Gloria Anzaldúa (la facultad and conocimiento) and from Isabel Gunning’s work (World Traveling). Ultimately, our premise is that teachers of teachers can impact the curricula in significant ways that result in dismantling racism and in teaching that is focused on positive social change. We posit that the university classroom where future teachers are trained must address (1) Equity issues, (2) Cultural identity or cultural framing, and (3) Culturally relevant strategies and teaching, modeled by the university professor.  相似文献   

Impact of the choice of threshold on physical activity patterns in free living conditions among adolescents measured using a uniaxial accelerometer: The HELENA study     

Jeremy Vanhelst  Laurent Béghin  Julia Salleron  Jonathan R. Ruiz  Francesco B Ortega  Charlene Ottevaere 《Journal of sports sciences》2013,31(2):110-115

Abstract

The aim of this study was to assess the impact of the choice of threshold on physical activity patterns measured in adolescents under free living conditions (FLC) using a uniaxial accelerometer. The study comprised 2043 adolescents (12.5–17.5 years) participating in the HELENA Study. Participants wore a uniaxial accelerometer for 7 days. The PA patterns were assessed using thresholds determined from six different studies. For each of the thresholds used, the number of adolescents fulfilling the recommendation of 60 min of moderate to vigorous PA (MVPA) per day was also calculated. A significant difference was found between thresholds regardless of the activity level: differences of 38%, 207%, 136%, and 2780% for sedentary, light, moderate, and vigorous intensity PA, respectively (P < 0.001). Time of MVPA varied between methods from 25.3 to 55.2 min · day^–1. The number of adolescents fulfilling the recommendation varied from 5.9% to 37% according to the thresholds used. The kappa coefficient for concordance in the assessment of the number of adolescents achieving the PA recommendations was generally low. The definition of the threshold for PA intensity may considerably affect the PA patterns in FLC when assessed using a uniaxial accelerometer and the number of participants fulfilling the recommendations.  相似文献   

Comparison of physical activity estimates using International Physical Activity Questionnaire (IPAQ) and accelerometry in fibromyalgia patients: The Al-Andalus study     

Javier Benítez-Porres  Manuel Delgado  Jonatan R. Ruiz 《Journal of sports sciences》2013,31(16):1741-1752

Abstract

The International Physical Activity Questionnaire (IPAQ) has been widely used to assess physical activity in healthy populations. The present study compared physical activity assessed by the long, self-administrated version of the International Physical Activity Questionnaire with physical activity assessed by accelerometry in patients with fibromyalgia. A total of 99 (five men) participants with fibromyalgia completed the International Physical Activity Questionnaire and wore an accelerometer for nine consecutive days. We analysed the correlations of physical activity expressed as min · day^?1 of light, moderate, vigorous, and moderate to vigorous (MVPA) intensity, as well as time spent sitting, by the International Physical Activity Questionnaire and accelerometry by Spearman correlations. Bland and Altman plots were performed to verify the agreements between both instruments. The results showed weak yet significant correlations (Rs = 0.15–0.39, all P < 0.05) in all physical activity intensities between the two instruments, except for sedentary time. The highest correlations were observed for physical activity at home or in garden (Rs = 0.297, P < 0.01). The results suggest that the long self-administrated International Physical Activity Questionnaire is a questionable instrument to assess physical activity in patients with fibromyalgia. Therefore, physical activity measurement in fibromyalgia patients should not be limited solely to self-reported measures.  相似文献   

Francisco Giner de los Ríos     

Julio Ruiz Berrio 《Prospects》1993,23(3-4):543-557

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Indiscipline or violence? The problem of bullying in school   总被引：1，自引：0，他引：1  

Rosario Ortega Ruiz 《Prospects》1998,28(4):587-599

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A biologically inspired model for pattern recognition     

Eduardo GONZALEZ  Hans LILJENSTRM  Yusely RUIZ 《Journal of Zhejiang University. Science. B》2010,11(2):115-126

In this paper, a novel bionic model and its performance in pattern recognition are presented and discussed. The model is constructed from a bulb model and a three-layered cortical model, mimicking the main features of the olfactory system. The olfactory bulb and cortex models are connected by feedforward and feedback fibers with distributed delays. The Breast Cancer Wisconsin dataset consisting of data from 683 patients divided into benign and malignant classes is used to demonstrate the capacity of the mod...  相似文献   

Detecting stable phase structures in EEG signals to classify brain activity amplitude patterns     

Yusely Ruiz  Guang Li  Walter J. Freeman  Eduardo Gonzalez 《浙江大学学报(A卷英文版)》2009,10(10):1483-1491

Obtaining an electrocorticograms （ECoG） signal requires an invasive procedure in which brain activity is recorded from the cortical surface. In contrast, obtaining electroencephalograms （EEG） recordings requires the non-invasive procedure of recording the brain activity from the scalp surface, which allows EEG recordings to be performed more easily on healthy humans. In this work, a technique previously used to study spatial-temporal patterns of brain activity on animal ECoG was adapted for use on EEG. The main issues are centered on solving the problems introduced by the increment on the interelectrode distance and the procedure to detect stable frames. The results showed that spatial patterns of beta and gamma activity can also be extracted from the EEG signal by using stable frames as time markers for feature extraction. This adapted technique makes it possible to take advantage of the cognitive and phenomenological awareness of a normal healthy subject.  相似文献   

Analysis of the system of practicum in Spanish universities     

Enriqueta Molina Ruiz 《欧洲师范教育杂志》2008,31(4):339-366

The analysis focuses on an area of the university system that is considered to be important for its potential as an element addressed appropriately to raise the level of the quality of education and of the university formation. We refer to the ‘System of Practical Formation’ (practicum) used in the development of the future professionals that will join the world of the work from the university classrooms.

Firstly, the different programmes and their performances that are taken in the different Spanish universities are compared. The judgements obtained from the experts are considered, and thinking about their results I reflect on the reality of our approaches with the purpose of enriching and improving the system of practical formation.

El análisis que llevamos a cabo se centra prioritariamente en un ámbito del sistema universitario que consideramos importante por su gran potencial como elemento con capacidad propia para elevar el nivel de calidad de la enseñanza y de la formación universitaria. Nos referimos al ‘Sistema de Formación Práctica’ (Practicum) utilizado en la formación de los futuros profesionales que se incorporarán desde las aulas universitarias, al mundo del trabajo.

Nos interesa, en un primer momento, comparar los distintos programas y actuaciones que, en tal sentido, se llevan a cabo en las diferentes universidades españolas, así como, recabar el juicio de expertos para, apoyándonos en sus resultados, proceder posteriormente a reflexionar sobre nuestra propia realidad con la finalidad de enriquecer y mejorar el propio sistema de formación práctica.  相似文献   

Origins of Secure Base Script Knowledge and the Developmental Construction of Attachment Representations          下载免费PDF全文

Theodore E. A. Waters  Sarah K. Ruiz  Glenn I. Roisman 《Child development》2017,88(1):198-209

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