In Pursuit of a Filipino Counselor Development Model: A Life-Span Approach     

Nino Jose Mateo  Jose Alberto S. Reyes 《International journal for the advancement of counseling》2015,37(3):262-278

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随机扩增多态性DNA技术研究发现二氧化钛纳米颗粒对西葫芦具有基因毒性     

Fabiola MORENO-OLIVAS  ;Vincent U.GANT Jr  ;Kyle L.JOHNSON  ;Jose R.PERALTA-VIDEA  ;Jorge L.GARDEA-TORRESDEY 《浙江大学学报(A卷英文版)》2014,15(8):618-623

研究目的：二氧化钛（TiO2）纳米颗粒已经广泛应用于化妆品、防晒霜、涂料和牙膏等。这些纳米颗粒性质非常稳定,能在废水和生物固体中转移和分散。现有研究表明,TiO2纳米颗粒对动物正常生理活动具有毒性等负面作用。但是,它们对植物是否具有毒性特别是是否会产生植物基因毒性至今尚不清楚。因此,本文使用随机扩增多态性DNA技术研究TiO2纳米颗粒是否对西葫芦具有基因毒性,为TiO2纳米颗粒排放进入环境后的潜在植物毒性风险评价提供依据。 创新要点：首次发现了TiO2纳米颗粒对西葫芦具有基因毒性。 重要结论：采用随机扩增多态性DNA技术,发现TiO2纳米颗粒污染处理的西葫芦样品与未处理样品的基因组DNA图谱相比,不仅在谱带强度有明显差异,而且存在谱带消失和新谱带产生现象,表明TiO2纳米颗粒对西葫芦具有基因毒性。  相似文献   

Single-sex schooling,gender and educational performance: Evidence using PISA data     

Jose G. Clavel  Darragh Flannery 《British Educational Research Journal》2023,49(2):248-265

The advantages and disadvantages of single-sex schooling continue to be a source of policy and public debate. Previous empirical evidence is somewhat ambiguous, with some studies finding a positive impact of single-sex schooling on education achievement and others finding no differences across school types. The relationship between single-sex schooling on academic outcomes is typically problematic to examine, as in most countries single-sex schools are selective and the numbers attending them are relatively small. In Ireland, a high proportion of secondary school children (~1/3) attend a single-sex school. In addition, these schools are largely state-funded and non-selective but differing in composition compared to mixed-sex schools. For this reason, the Irish educational system provides an interesting setting for exploring the outcomes of single-sex schooling. In this context, this study utilises the 2018 PISA data for Ireland to examine the relationship between single-sex education and mathematics, reading and science literacy performance for boys and girls, respectively, as well as differences across gender in these outcomes. We find significant raw gaps in reading, science and mathematics scores between females in single-sex and mixed-sex schools and in mathematics scores for males across the same school types. However, after controlling for a rich set of individual, parental and school-level factors we find that, on average, there is no significant difference in performance for girls or boys who attend single-sex schools compared to their mixed-school peers in science, mathematics or reading. In terms of heterogeneous analysis, this finding is consistent across the performance distribution.  相似文献   

Discriminatory power of water polo game-related statistics at the 2008 Olympic Games     

Escalante Y  Saavedra JM  Mansilla M  Tella V 《Journal of sports sciences》2011,29(3):291-298

The aims of this study were (1) to compare water polo game-related statistics by context (winning and losing teams) and sex (men and women), and (2) to identify characteristics discriminating the performances for each sex. The game-related statistics of the 64 matches (44 men's and 20 women's) played in the final phase of the Olympic Games held in Beijing in 2008 were analysed. Unpaired t-tests compared winners and losers and men and women, and confidence intervals and effect sizes of the differences were calculated. The results were subjected to a discriminant analysis to identify the differentiating game-related statistics of the winning and losing teams. The results showed the differences between winning and losing men's teams to be in both defence and offence, whereas in women's teams they were only in offence. In men's games, passing (assists), aggressive play (exclusions), centre position effectiveness (centre shots), and goalkeeper defence (goalkeeper-blocked 5-m shots) predominated, whereas in women's games the play was more dynamic (possessions). The variable that most discriminated performance in men was goalkeeper-blocked shots, and in women shooting effectiveness (shots). These results should help coaches when planning training and competition.  相似文献   

Anticipatory strategies of team-handball goalkeepers     

Gutierrez-Davila M  Rojas FJ  Ortega M  Campos J  Parraga J 《Journal of sports sciences》2011,29(12):1321-1328

This study seeks to discover whether handball goalkeepers employ a general anticipatory strategy when facing long distance throws and the effect of uncertainty on these strategies. Seven goalkeepers and four throwers took part. We used a force platform to analyse the goalkeeper's movements on the basis of reaction forces and two video cameras synchronised at 500 Hz to film the throw using 3D video techniques. The goalkeepers initiated their movement towards the side of the throw 193 ± 67 ms before the release of the ball and when the uncertainty was reduced the time increased to 349 ± 71 ms. The kinematics analysis of their centre of mass indicated that there was an anticipatory strategy of movement with certain modifications when there was greater uncertainty. All the average scores referring to velocity and lateral movement of the goalkeeper's centre of mass are significantly greater than those recorded for the experimental situation with bigger uncertainty. The methodology used has enabled us to tackle the study of anticipation from an analysis of the movement used by goalkeepers to save the ball.  相似文献   

A comparative study of the effects of two teaching strategies in an activity-centered science program on middle school students' need-affiliation and teacher dependency behaviors     

Jose L. Vinelli  Charles C. Matthews  Dorothy M. Schlitt  Sudhir Abhyankar  David J. McKee 《科学教学研究杂志》1979,16(2):159-165

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A case example of one state's efforts to measure and address the critical shortage of school psychologists     

Angela Mann  Jose Castillo  Mary Alice Myers 《Psychology in the schools》2019,56(10):1716-1736

Despite persistent calls for school psychologists to provide comprehensive and integrated services, school psychologists may have difficulty providing these services because of critical shortages in the profession. This practical action research study involved surveying district supervisors of school psychologists and training program directors in the state to identify the current and projected shortages in Florida. This multimethod, multi‐informant case example also focused on facilitators of and barriers to addressing the critical shortage. How the data have been used to inform recruitment, retention, and advocacy efforts to identify school psychology as a critical shortage legislatively are provided as well as recommendations for future research.  相似文献   

Students' conceptions about the vector characteristics of three physics concepts     

Jose Aguirre  Gaalen Erickson 《科学教学研究杂志》1984,21(5):439-457

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Learning for autonomy     

Jose Rivero 《International Review of Education/Internationale Zeitschrift für Erziehungswissenschaft/Revue internationale l'éducation》1989,35(4):445-461

There is a need for a new concept of post-literacy which goes beyond the learning of codes. The target population is defined on the basis of their need to be given the capacity to take decisions on essential economic, civic, political and day-to-day aspects of their lives.The main arena of post-literacy lies in the countries of the Third World, where the economic crisis has serious effects on the quality of life and impairs the motivation to learn. Particular reference is made to the concept of participation and to the ability to determine four types of basic educational need: fundamental needs, productivity needs, social service needs and community organization needs.Four Latin American programmes linked to these four types of need are presented and discussed in terms of their particular features: popular participation in decision making; the search for methods and techniques which give the population a certain degree of autonomy; and respect for the cultures and world visions of the communities in the conduct of post-literacy, educational innovation and other activities. The programmes are: post-literacy in Nicaragua (fundamental education needs); research on post-literacy and employment in 13 countries (productivity needs); the CIPCA project for peasants in Piura, on the northern coast of Peru (social service needs); and the Talking Maps project developed with the Paez community in Cauca, Colombia (community organization needs).

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Zusammenfassung Ein neues Nachalphabetisierungskonzept, das über das Erlernen von Codes hinausgeht, wird benötigt. Die Zielgruppe wird aufgrund ihrer Bedürfnisse genau bestimmt, die sie dann in die Lage versetzen soll, Entscheidungen über wichtige ökonomische, staatsbürgerliche, politische und alltägliche Aspekte ihres Lebens zu treffen.Das Hauptgebiet der Nachalphabetisierung liegt in den Ländern der Dritten Welt, wo die Wirtschaftskrise ernsthafte Auswirkungen auf die Lebensqualität hat und die Lernmotivation beeinträchtigt. Besondere Aufmerksamkeit wird auf das Konzept der Partizipation gelenkt und auf die Fähigkeit, vier Arten von Grundbedürfnissen der Bildung festzusetzen: fundamentale Bedürfnisse, Produktivitätsbedürfnisse, Bedürfnisse im Sozialbereich und in der Gemeindeorganisation.Vier lateinamerikanische Programme, die mit diesen vier Arten von Grundbedürfnissen verbunden sind, werden in Bezug auf ihre besonderen Merkmale vorgestellt und erörtert: Beteiligung der Bevölkerung an Entscheidungsprozessen; die Suche nach Methoden und Techniken, die der Bevölkerung einen gewissen Grad an Autonomie verleihen; Achtung vor den Kulturen und Weltvisionen der Gemeinden bei der Ausführung der Nachalphabetisierung, der Innovationen auf dem Bildungssektor und anderer Aktivitäten. Diese Programme sind: Nachalphabetisierung in Nicaragua (fundamentale Bildungsbedürfnisse); Forschung über Nachalphabetisierung und Beschäftigung in 13 Ländern (Produktivitätsbedürfnisse); das CIPCA-Projekt für die Landbevölkerung in Piura an der Nordküste Perus (Bedürfnisse im Sozialbereich); und das sprechende Landkarten-Projekt, das mit der Paezgemeinde in Cauca, Kolumbien entwickelt wurde (Bedürfnisse in der Gemeindeorganisation).

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Résumé Un nouveau concept de post-alphabétisation, qui transcende l'apprentissage de codes, s'avère nécessaire. On définit les populations-cibles sur la base de leur besoin de recevoir la capacité de prendre des décisions sur les principaux aspects économiques, civiques, politiques et courants de leurs vies.Le champ d'activité de la postalphabétisation se trouve essentiellement dans les pays du Tiers Monde, où la crise économique produit des effets sérieux sur la qualité de la vie et entrave la motivation à l'apprentissage. On mentionne en particulier le concept de participation et l'aptitude à déterminer quatre types de besoins éducatifs de base: les besoins fondamentaux, les besoins en matière de productivité, de services sociaux et d'organisation de la communauté.Quatre programmes d'Amérique latine liés à ces quatre types de besoin sont présentés et examinés en fonction de leurs caractéristiques particulières: la participation des populations à la prise de décision; la recherche de méthodes et de techniques qui donnent à la population un certain degré d'autonomie; et le respect des cultures et des visions du monde des communautés lors de la conduite des programmes de post-alphabétisation, d'innovations éducatives et autres. Ces programmes sont: la post-alphabétisation au Nicaragua (besoins éducatifs fondamentaux); la recherche sur la post-alphabétisation et l'emploi dans 13 pays (besoins en matière de productivité); le projet CIPCA à l'adresse des paysans de Piura, situé sur la côte nord du Pérou (besoins en matière de services sociaux); et le projet Cartes parlantes développé avec la communauté Paez dans le Cauca, en Colombie (besoins d'organisation de la communauté).

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Studying mathematics problem-solving classrooms. A comparison between the discourse of in-service teachers and student teachers     

Javier Rosales  Josetxu Orrantia  Santiago Vicente  Jose M. Chamoso 《European Journal of Psychology of Education - EJPE》2008,23(3):275-294

In the article we compare the approaches of 3 in-service teachers and 3 student teachers when they tried to solve a verbal arithmetic problem in the classroom. Each interaction was studied using a System of Analysis that takes into account the cognitive processes involved in the solution of a mathematic problem and describes the interaction at different levels showing what is done and to what degree teachers and/or pupils are responsible for what is done. The results of the study suggest that both groups of teachers are different in how they direct the student’s attention toward the essential aspects implied in the resolution of word problem. On the one hand, the in-service teachers guaranteed students’ understanding of the problem before dealing with the solution, while students teachers only did so when pupils committed errors. On the other hand, the in-service teachers allowed a high level of student participation, while student teachers took a more prominent role so children’s participation was lower.  相似文献