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   

Materials and techniques: Early Buddhist wall paintings and sculptures at Sumda Chun,Ladakh     

Maninder Singh Gill  Carolina Priego Rendo 《文物保护研究》2014,59(5):300-313

An assemblage of Buddhist wall paintings and sculptures dating to the twelfth/early thirteenth century are found distributed over the interiors of the temple complex at Sumda Chun, Ladakh. Detailed investigations carried out as part of a conservation project shed light on their antiquity and production technology. The sculptures are constructed with fine mud mortar applied over a wooden armature and affixed to the walls without any support from the ground. In both the sculptures and wall paintings, the paint layer is applied over a thin gypsum ground that functions as a white colourant where unpainted. For the paint layer, azurite, vermilion, and orpiment are the dominant mineral pigments utilized. Minium (red lead) has been used for preparatory drawings and as paint. Highlighting of special areas was achieved using a laminate of tin–lead alloy and gold on relief. Overall the material and techniques employed in the execution of the wall paintings and sculptures are consistent with those reported for other early sites in the region.  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   

Building Universities of Quality: An Analysis of the Views of University Students concerning their Academic Training     

Ignacio González López 《Higher Education in Europe》2005,30(3-4):321-334

The primary objective of this paper has been to define a quality university from the user's perspective, based on what students expressed regarding different aspects of the institution. Two methodologically different formats of collecting information have assisted in testing the coherence of their opinions. A qualitative and quantitative approach helped to evaluate the results.  相似文献   

Camus and the Art of Teaching   总被引：1，自引：0，他引：1  

Ignacio L. Gtz 《Educational theory》1987,37(3):265-276

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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