Transferphänomene in der Motorik     

Claudia Reiter  Christoph Duntz  Norbert Olivier 《Sportwissenschaft》2003,33(2):224-226

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Help for campus child care     

Claudia Dotson 《Early Childhood Education Journal》1976,4(1):13-14

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Story problems in the deaf education classroom: frequency and mode of presentation     

Pagliaro CM  Ansell E 《Journal of deaf studies and deaf education》2002,7(2):107-119

Over the past decade, curricular reform in mathematics education has emphasized the use of problem solving at all levels of instruction for all students, but adaptations for students with unique needs have not been specified. This study investigated the nature of problem solving in deaf education, focusing in particular on the use of story problems in the primary-level curriculum. Approximately 90% of the K-3 teachers from five schools for the deaf were asked with what frequency and in which communication mode they presented story problems to their students. Most teachers reported presenting story problems 1-3 times per week, and presentation method tended to reflect school communication philosophy. We found trends in story problem presentation in accordance with the mathematics grade level taught. We discuss implications for curricular reform and teacher education.  相似文献   

Guidelines for the protection and treatment of the abused child     

Claudia A. Carroll  Barton D. Schmitt 《Child abuse & neglect》1978,2(2):109-116

The purpose of this paper is to review ten actions that can be taken by multi- disciplinary child protection teams or individuals in this field to assure that the interests of the abused child are consistently addressed.  相似文献   

Parental distress: the initial phase of hearing aid and cochlear implant fitting     

Burger T  Spahn C  Richter B  Eissele S  Löhle E  Bengel J 《American annals of the deaf》2005,150(1):5-10

The results of previous cross-section studies suggest that childhood hearing impairment may lead to parental psychosocial stress. The present study investigated whether modifications in parental psychic state can be ascertained in connection with the child's treatment events and the child's hearing and speech status, in a prospective study design. Data were available on 116 fathers and mothers regarding the pre-cochlear implant examination or hearing aid fitting of their child. In the course of the child's treatment, parental quality of life improved from a low to a normal level. Among children who were at the stage of pre-examination for a cochlear implant, better hearing and speech capacity was linked to more severe impairment of the parental state. It is emphasized that the parents whose children showed comparatively good language development at the time of pre-examination for a cochlear implant were especially subjected to stress.  相似文献   

The effect of differentially sequenced individualized instructional materials on student achievement in biology     

Claudia B. Douglass  Jane B. Kahle 《科学教学研究杂志》1977,14(4):335-340

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The determinants of research output and impact: A study of Mexican researchers   总被引：1，自引：0，他引：1  

Claudia Gonzalez-Brambila  Francisco M. Veloso 《Research Policy》2007,36(7):1035-1051

This paper uses a unique data set of Mexican researchers to explore the determinants of research output and impact. Our findings confirm a quadratic relationship between age and the number of published papers. However, publishing peaks when researchers are approximately 53 years old, 5 or 10 years later than what prior studies have shown. Overall, the results suggest that age does not have a substantial influence on research output and impact. We also find that reputation matters for the number of citations but not publications. Results also show important heterogeneity across areas of knowledge. Interpretations of other aspects, such as gender, country of PhD, and cohort effect, among others, are also discussed.  相似文献   

Effectiveness of citrate buffer-fluoride mixture in Terumo tubes as an inhibitor of in vitro glycolysis     

Graziella Bonetti  Mariarosa Carta  Martina Montagnana  Claudia Lo Cascio  Anna Rita Bonfigli  Andrea Mosca  Roberto Testa 《Biochemia medica : ?asopis Hrvatskoga dru?tva medicinskih biokemi?ara / HDMB》2016,26(1):68-76

Introduction

Glycolysis affects glucose determination in vitro. The placement of sample tubes in ice-water slurry with plasma separation within 30 minutes is recommended, or alternatively the use of a glycolysis inhibitor. The aim of our two-steps study was to evaluate which Terumo tube is best for glucose determination in routine clinical setting.

Materials and methods

In the first study, blood from 100 volunteers was collected into lithium heparin (LH), NaF/Na heparin (FH) and NaF/citrate buffer/Na₂EDTA (FC-Mixture) tubes. LH sample was treated as recommended and considered as reference, while FH and FC-Mixture samples were aliquoted, maintained at room temperature (RT) for 1, 2 and 4 hours; centrifuged and plasma analysed in triplicate. In the second study, samples from 375 volunteers were collected in LH, FH and FC-Mixture tubes and held at RT before centrifugation from 10 to 340 minutes, depending on each laboratory practice. Samples were analysed in one analytical run.

Results

In the first study, FH glucose concentrations were 5.15 ± 0.66 mmol/L, 5.05 ± 0.65 mmol/L and 5.00 ± 0.65 mmol/L (P < 0.001) in tubes stored at RT for 1, 2 and 4 hours, respectively. Mean biases in all time points exceeded the analytical goal for desirable bias based on biological variation criteria. FC-Mixture glucose concentrations were 5.48 ± 0.65 mmol/L, 5.46 ± 0.6 mmol/L and 5.46 ± 0.64 mmol/L in tubes stored at RT for 1, 2 and 4 hours, respectively. Mean biases for FC-Mixture glucose in all time points reached optimal analytical goals. In the second study, the biases for LH and FH glucose compared to reference FC-Mixture glucose exceeded the preset analytical goals, regardless of the blood collection to centrifugation time interval.

Conclusions

FC-mixture tubes glucose concentrations were preserved up to 4h storage at RT. We confirmed that NaF alone does not allow immediate glycolysis inhibition in real life pre-centrifugation storage conditions (up to 340 minutes). FC-Mixture should be used exclusively for glucose determination in laboratories unable to implement the recommended blood samples’ treatment.Key words: glucose, pre-analytical phase, sodium fluoride, citrate acidification, stability  相似文献   

The effects of a concept map-based information display in an electronic portfolio system on information processing and retention in a fifth-grade science class covering the Earth's atmosphere     

Paul Kim  Claudia Olaciregui 《British journal of educational technology : journal of the Council for Educational Technology》2008,39(4):700-714

An electronic portfolio system, designed to serve as a resource-based learning space, was tested in a fifth-grade science class. The control-group students accessed a traditional folder-based information display in the system and the experimental-group students accessed a concept map-based information display to review a science portfolio. The student-constructed science portfolio was a result of a collection of digital artefacts such as graphic images, instructional videos and textual files on terms and definitions relevant to the Earth's atmosphere. In the information-processing performance test, the experimental-group students scored significantly higher and spent much less time in finding answers to the questions presented. Also, in the 3-day delayed memory retention tests, the experimental-group students achieved significantly higher scores. The multiple regression models confirm that the visualisation variation is the most significant predictor for student performance (ie, comprehension and access time). Also, the regression models suggest that language-arts proficiency may reduce overall system access time; while higher math proficiency may predict retention scores.  相似文献   

Arguing to learn and learning to argue: Case studies of how students' argumentation relates to their scientific knowledge     

Claudia von Aufschnaiter  Sibel Erduran  Jonathan Osborne  Shirley Simon 《科学教学研究杂志》2008,45(1):101-131

In this study we investigated junior high school students' processes of argumentation and cognitive development in science and socioscientific lessons. Detailed studies of the relationship between argumentation and the development of scientific knowledge are rare. Using video and audio documents of small group and classroom discussions, the quality and frequency of students' argumentation was analyzed using a schema based on the work of Toulmin ( 1958 ). In parallel, students' development and use of scientific knowledge was also investigated, drawing on a schema for determining the content and level of abstraction of students' meaning‐making. These two complementary analyses enabled an exploration of their impact on each other. The microanalysis of student discourse showed that: (a) when engaging in argumentation students draw on their prior experiences and knowledge; (b) such activity enables students to consolidate their existing knowledge and elaborate their science understanding at relatively high levels of abstraction. The results also suggest that students can acquire a higher quality of argumentation that consists of well‐grounded knowledge with a relatively low level of abstraction. The findings further suggest that the main indicator of whether or not a high quality of argument is likely to be attained is students' familiarity and understanding of the content of the task. The major implication of this work for developing argumentation in the classroom is the need to consider the nature and extent of students' content‐specific experiences and knowledge prior to asking them to engage in argumentation. © 2007 Wiley Periodicals, Inc. J Res Sci Teach 45: 101–131, 2008  相似文献