21 Teachers of Wichita,Kan., Comment on Dr. Lloyd N. Morrisetfs Article The Curriculum and Life     

Susan Brand  Rita Dunn  Fran Greb 《Clearing house (Menasha, Wis.)》2013,86(5):268-273

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Problem posing based on investigation activities by university students     

João Pedro da Ponte  Ana Henriques 《Educational Studies in Mathematics》2013,83(1):145-156

This paper reports a classroom-based study involving investigation activities in a university numerical analysis course. The study aims to analyse students' mathematical processes and to understand how these activities provide opportunities for problem posing. The investigations were intended to stimulate students in asking questions, to trigger their thinking processes, to promote their ability to investigate and to support them in learning numerical analysis' concepts and procedures. The results show that the investigations provided opportunities for students to experience mathematical processes, including posing questions, formulating and testing conjectures and, to some extent, proving results. They also provide some understanding about the role of problem posing in these processes. Posing questions occurred mainly in an implicit way, in the interpretation of tasks and in identifying regularities, analysing graphs and testing cases. The conjectures were often based on pattern identification or data manipulation, and the students tended to accept them without testing or proving. The students also proposed alternative formulations for the initial questions and posed new problems from their explorations and attempts to refine previous conjectures.  相似文献   

The Filipino Nursing Students' Dilemmas in Geriatric Care     

Allan B. de Guzman  Andrei Angelo R. Cruz  Angela Laurice G. Cruz  Robert Edward D. Cruz  Jose Mari Niño L. Cuarto 《Educational gerontology》2013,39(8):673-686

The continually rising percentage of the elderly population and the demand for geriatric nursing care are dramatically related. While it is true that most undergraduate programs prepare nurses for the care of geriatric patients, most receive limited academic preparation in the nursing curriculum (Williams & Mezey, 2000 Williams , C. , & Mezey , M. ( 2000 ). Older adults: Recommended baccalaureate competencies and curricular guidelines for geriatric nursing care . American Association of Colleges of Nursing and the John A. Hartford Foundation Institute for Geriatric Nursing . Retrieved August 10, 2008, from http://www.aacn.nche.edu/Education/pdf/Gercomp.pdf  [Google Scholar]). This is particularly true in the Philippines where there is no stand-alone geriatric nursing course.

This phenomenological study purports to capture the lived experiences of Filipino nursing students' dilemmas in geriatric care. Five Filipino senior nursing students and three clinical faculty from a comprehensive university in the Philippines were purposely chosen for the study. A two-part instrumentation was used. The first is the robotfoto, a Dutch term which means a cartographic sketch of the subject (Kelchtermans & Ballet, 2002 Kelchtermans , G. , & Ballet , K. ( 2002 ). The micropolitics of teacher induction: A narrative bibliographical study on teacher socialization . Teaching and Teacher Education , 18 ( 1 ), 105 – 120 .[Crossref], [Web of Science ®] , [Google Scholar]). The second was a semi-structured face-to-face interview that was recorded with the consent of the participants. The full texts were phenomenologically reduced using a repertory grid to observe both cool and warm analyses, which facilitates the identification of unique conceptual clusters. Findings of this study have described the elements that define student dilemmas in geriatric care. The emerged Students' Dilemmas in Geriatrics Causality Quadrant (SDGCQ), which consists of (a) Foundational Deficit, (b) Psychological Deficit, (c) Relational-Attitudinal Deficit, and (d) Occupational Deficit, are valuable discussion points for needed reforms in the present-day nursing curriculum.  相似文献   

Using genetic algorithms to evolve a population of topical queries   总被引：1，自引：1，他引：0  

Rocío L. Cecchini  Carlos M. Lorenzetti  Ana G. Maguitman  Nlida Beatríz Brignole 《Information processing & management》2008,44(6):1863

Systems for searching the Web based on thematic contexts can be built on top of a conventional search engine and benefit from the huge amount of content as well as from the functionality available through the search engine interface. The quality of the material collected by such systems is highly dependant on the vocabulary used to generate the search queries. In this scenario, selecting good query terms can be seen as an optimization problem where the objective function to be optimized is based on the effectiveness of a query to retrieve relevant material. Some characteristics of this optimization problem are: (1) the high-dimensionality of the search space, where candidate solutions are queries and each term corresponds to a different dimension, (2) the existence of acceptable suboptimal solutions, (3) the possibility of finding multiple solutions, and in many cases (4) the quest for novelty. This article describes optimization techniques based on Genetic Algorithms to evolve “good query terms” in the context of a given topic. The proposed techniques place emphasis on searching for novel material that is related to the search context. We discuss the use of a mutation pool to allow the generation of queries with new terms, study the effect of different mutation rates on the exploration of query-space, and discuss the use of a especially developed fitness function that favors the construction of queries containing novel but related terms.  相似文献   

Classroom management of situated group learning: A research study of two teaching strategies     

Miss Kathy Smeh c/o Kathy Smeh  Rod Fawns 《Research in Science Education》2000,30(2):225-240

Although peer-based work is encouraged by theories in developmental psychology and although classroom interventions suggest it is effective, there are grounds for recognising that young pupils find collaborative learning hard to sustain. Discontinuities in collaborative skill during development have been suggested as one interpretation. Theory and research have neglected situational continuities that the teacher may provide in management of formal and informal collaborations. This experimental study, with the collaboration of the science faculty in one urban secondary college, investigated the effect of two role attribution strategies on communication in peer groups of different gender composition in three parallel Year 8 science classes. The group were set a problem that required them to design an experiment to compare the thermal insulating properties of two different materials. This presents the data collected and key findings, and reviews the findings from previous parallel studies that have employed the same research design in different school settings. The results confirm the effectiveness of social role attribution strategies in teacher management of communication in peer-based work.  相似文献   

A view of the current situation and future directions of guidance and counselling in Czechoslovakia     

Jozef Koščo 《International journal for the advancement of counseling》1979,2(3):231-239

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Cement reference laboratory     

Charles J. Brand 《Journal of The Franklin Institute》1929,208(5):665-668

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Towards a new cosmopolitan social contract: social trends and political challenges     

Sousa  João Carlos 《Metascience》2020,29(3):493-496

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Cardiorespiratory fitness and telomere length: a systematic review     

Adilson Marques  Élvio Rubio Gouveira  Miguel Peralta  João Martins  Joed Venturini  Duarte Henriques-Neto 《Journal of sports sciences》2020,38(14):1690-1697

ABSTRACT

This study aimed to systematically review the association between cardiorespiratory fitness and telomere length (TL). Studies were identified from searches in Cochrane Central, PubMed, Scopus, Sportdiscus, and Web of Science databases through July 2019. Eligibility criteria included: cross-sectional, prospective, and experimental study design; outcomes included TL; results expressed the relationship between cardiorespiratory fitness and TL; studies published in English, Portuguese, or Spanish. A total of 20 articles met the inclusion criteria. Sixteen studies (80%) reported a significant relationship between cardiorespiratory fitness, or training load, and TL. Better cardiorespiratory fitness or a large cardiorespiratory training load are associated with an increase in TL. Although, TL was related to regular moderate-to-vigorous aerobic exercise and cardiorespiratory fitness in older healthy humans, it was not related to cardiorespiratory fitness among young subjects. There seems to be a positive and significant relationship between cardiorespiratory fitness and TL, mainly among middle age and older people, which emphasizes the importance of cardiorespiratory fitness for healthy ageing. Therefore, endurance exercise and better cardiorespiratory fitness may regulate the TL in middle age and older adults, slowing the cellular ageing process.  相似文献   

Effects and prevalence of responders after a multicomponent intervention on cardiometabolic risk factors in children and adolescents with overweight/obesity: Action for health study     

Caroline Brand  Clarice Maria De Lucena Martins  Vanilson Batista Lemes  Maria Luisa Félix Pessoa  Arieli Fernandes Dias  Eduardo Lusa Cadore 《Journal of sports sciences》2020,38(6):682-691

ABSTRACT

This study aimed to verify the effect of a multicomponent intervention on cardiometabolic risk factors (CMRF), and to determine the prevalence of responders on CMRF among children and adolescents with overweight/obesity. This is a quasi-experimental study, developed with 35 children and adolescents with overweight/obesity (control group (CG) = 18; intervention group (IG) = 17), aged between 7 and 13 years. Participants in IG underwent a multicomponent intervention for 12 weeks. The following variables were evaluated: anthropometric measures, maturational stages and CMRF (body fatness, HOMA-IR, triglycerides, high-density and low-density lipoprotein) (HDL-C, LDL-C), total cholesterol (TC), aspartate aminotransferase (AST), alanine aminotransferase (ALT) and AST/ALT ratio. Mixed analysis of variance and the prevalence of responders were used for statistical analysis. There was a significant time x group interaction on body fatness (p < 0.001), HOMA-IR (p = 0.01), HDL-C (p < 0.001), LDL-C (p = 0.009) and TC (p < 0.001). The prevalence of responders for CMRF in IG and CG was respectively: body fatness (47%; 0%; p = 0.04), HOMA-IR (58.8%; 16.6%; p = 0.04); triglycerides (17.6%; 5.5%; p = 0.31); HDL-C (76.4%; 5.5%; p = 0.01), LDL-C (35.3%; 5%; p = 0.08), TC (64.7%; 5%; p = 0.01), AST (5.8%; 0%; p = 0.87), ALT (29.4%; 11.1%; p = 0.24) and AST/ALT ratio (24.4%; 22.2%; p = 0.67). Multicomponent intervention induced positive changes on CMRF along with a higher prevalence of positive adaptations in IG than the CG in some of the cardiometabolic outcomes assessed.  相似文献