International trends in health science librarianship: Part 4 – Four Southern European countries     

Evagelia Lappa  Artemis Chaleplioglou  Gaetana Cognetti  Maurella Della Seta  Federica Napolitani Cheyne  Veronica Juan‐Quilis  Laura Muñoz‐Gonzalez  Sílvia Lopes 《Health information and libraries journal》2012,29(4):338-343

This is the fourth in a series of articles exploring international trends in health science librarianship in four Southern European countries in the first decade of the 21st century. The invited authors are from Greece, Italy, Spain and Portugal. Future issues will track trends in Latin America and Central Europe. JM  相似文献   

The effects of teacher mathematics knowledge and pedagogy on student achievement in rural Guatemala     

Jeffery H. Marshall  M. Alejandra Sorto 《International Review of Education/Internationale Zeitschrift für Erziehungswissenschaft/Revue internationale l'éducation》2012,58(2):173-197

Why are some teachers more effective than others? The importance of understanding the interplay between teacher preparation, pedagogy and student achievement has motivated a new line of research focusing on teacher knowledge. This study analyses the effects of teacher mathematics knowledge on student achievement using longitudinal data from rural Guatemalan primary schools. After presenting a conceptual framework for linking the work of the teacher with student learning in mathematics together with an overview of the different forms of teacher knowledge, the paper introduces the Guatemalan context and the analytical framework including the sample, data and methods. Overall, the results provide some empirical support for a widely held, if infrequently tested, belief in mathematics education: effective teachers have different kinds of mathematical knowledge. The results also suggest specific mechanisms by which effective teachers can make substantial impacts on student learning, even in extremely poor contexts.  相似文献   

Teachers’ scaffolding science reading comprehension in low-income schools: how to improve achievement in science     

Sandra Patricia Rojas Rojas  Alejandra Meneses  Emilio Sánchez Miguel 《International Journal of Science Education》2013,35(13):1827-1847

ABSTRACT

Reading is a tool that promotes the learning of science across schooling. Scientific texts are conceptually and linguistically complex, especially for students from low-income contexts because they have neither the experience with the language nor the literacy skills to face the challenges of scientific knowledge. This study used a mix method approach to compare the cognitive scaffolding practiced by teachers during science reading activities in high- and low-performing schools. Three teachers and 141 fourth grade students from low socioeconomic background schools participated in 48 class sessions. Classes were video-recorded and transcribed. The data were analyzed using Sanchez’ Pedagogic Practice Analysis System. The results show that teachers from both types of schools continuously use reading as a tool for learning. The effective teacher uses reading with non-invasive scaffolding and varied verbal participation to elaborate knowledge, promoting literal and inferential comprehension and more opportunities for the students to construct knowledge. By contrast, less effective teachers use reading with invasive scaffolding and little verbal participation of the students to consolidate knowledge, promoting mainly literal comprehension. This study shed light on different approaches teachers use to foster reading comprehension for science learning.  相似文献   

Popularity versus respect: school structure,peer groups and Latino academic achievement     

Nilda Flores‐Gonzalez 《International journal of qualitative studies in education》2013,26(5):625-642

This article begins with a discussion of recent critiques of Fordham and Ogbu’s argument on the ‘burden of acting white’. These critiques point to the stereotypical and homogeneous characterization of the black peer group by Fordham and Ogbu, as well as their inattention to the ways in which schools relegate into the lower tracks those students who behave too ethnically and who do not demonstrate proficiency with dominant cultural attributes. The second half of the article presents data showing that academic achievement is related to peer‐group membership and that schools are largely responsible for which peer group students join. Based on an ethnographic study at a predominantly Latino urban high school, I argue that Latino high achievers do not necessarily experience the ‘burden of acting white’ as Fordham and Ogbu suggest. This was due to the institutional practices at Hernandez High School, which ensured that high achievers and low achievers occupied different academic and social spaces, resulting in little interaction between the groups, and to the very different culture that prescribed the ways in which members of each group could achieve status.  相似文献   

Towards a new cartography of curriculum reform: Reflections on educational decentralization in Argentina     

Ines Dussel  Guillermina Tiramonti  Alejandra Birgin 《课程研究杂志》2013,45(4):537-559

Curriculum reforms have led to discursive and organizational changes in Argentina. These reforms have reshaped school knowledge and institutional patterns of school administration. We analyse the process of this 'curriculum reterritorialization', the contradictions and displacements it produces, and the hybrid products that result from it. Reterritorialization is traced through four interrelated movements: the hybridization of discourses; the design of new maps of relations between the centre and the periphery of the educational system; the new 'regime of truth' that emerges out of these changes; and the role of the intellectual in educational reform. Although they are different in scope and magnitude, these movements provide the tools required to analyse the many ways in which curriculum reform is transforming Argentina's educational experiences.  相似文献   

Using school scholarships to estimate the effect of private education on the academic achievement of low-income students in Chile     

Priyanka Anand  Alejandra Mizala  Andrea Repetto 《Economics of Education Review》2009

This paper estimates the impact of private education on the academic achievement of low-income students in Chile. To deal with selection bias, we use propensity score matching to compare the test scores of reduced-fee paying, low-income students in fee-charging private voucher schools to those of similar students in public schools and free private voucher schools. Our results reveal that students in fee-charging private voucher schools score slightly higher than students in public schools. The difference in standardized test scores is approximately 10 points, a test score gain of 0.2 standard deviations. We find no difference in the academic achievement of students in the fee-charging private voucher treatment group relative to their counterparts in free private voucher schools.  相似文献   

Framework for audio reversible watermarking robust against content replacement with signal restoration capabilities     

Alejandra Menendez-Ortiz  Claudia Feregrino-Uribe  Jose Juan Garcia-Hernandez 《Journal of The Franklin Institute》2019,356(12):6793-6816

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Wasting Talent: Using Counter-Storytelling to Narrate Dismal Educational Outcomes     

Martín Alberto Gonzalez 《Journal of Latinos & Education》2018,17(3):252-256

A recent study illustrated that the educational attainment of Latina/o students has been dismal during the past decade and that many Latinas/os continue to “fall through the cracks” of the educational pipeline. Through storytelling, I juxtapose my educational trajectory as a high school graduate with that of my third-oldest brother, who “fell through the cracks” of the educational pipeline as an underclassman in high school. I provide examples of how being reprimanded for minimal misconduct negatively impacted my older brother’s overall school experiences, which ultimately prevented him from finishing high school despite his potential to succeed.  相似文献   

Identifying the causal mechanisms of the quiet eye     

C. C. Gonzalez  J. Causer  R. C. Miall  M. J. Grey  G. Humphreys  A. M. Williams 《European Journal of Sport Science》2017,17(1):74-84

Abstract

Scientists who have examined the gaze strategies employed by athletes have determined that longer quiet eye (QE) durations (QED) are characteristic of skilled compared to less-skilled performers. However, the cognitive mechanisms of the QE and, specifically, how the QED affects performance are not yet fully understood. We review research that has examined the functional mechanism underlying QE and discuss the neural networks that may be involved. We also highlight the limitations surrounding QE measurement and its definition and propose future research directions to address these shortcomings. Investigations into the behavioural and neural mechanisms of QE will aid the understanding of the perceptual and cognitive processes underlying expert performance and the factors that change as expertise develops.  相似文献   

肝片吸虫感染对山羊机体无机盐含量的影响     

顾有方  朱道仙  毛鑫智  沈永林  J.Gonzalez-Gallego 《安徽科技学院学报》2001,(4)

选择 9只 6 - 10月龄的健康雄性白山羊 ,经粪便检查和DotBLISA检测 ,确认无肝片吸虫感染 ,随机分成感染组 (n =5 )和对照组 (n =4 ) ,试验组每只一次口服接种 15 0个肝片吸虫囊蚴。每周定时从颈静脉采集感染前 0周和感染后 14周血液一次 ,分离血清 ,测定血清中的钾、钙、钠、镁、磷、氯等无机盐的含量 ,旨在研究感染肝片吸虫对山羊机体无机盐含量的影响。结果表明感染后山羊血清中的钾、钠、钙、镁、磷、氯的含量均成波动变化 ,说明肝片吸虫感染后机体无机盐含量发生了不同程度的变化 ,这与虫体感染后机体的代谢发生改变有关。  相似文献