Book reviews     

Sheila Slaughter  Edward T. Silva  Leslie Smith 《Higher Education》1985,14(5):585-592

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Factors associated with arithmetic-and-reading disability and specific arithmetic disability   总被引：2，自引：0，他引：2  

D L Share  T E Moffitt  P A Silva 《Journal of learning disabilities》1988,21(5):313-320

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Book reviews     

Sir Alex Smith  Norman Evans  Gareth Williams  F. R. Charmer  David R. McNamara  Edward T. Silva  John Heywood  A. M. Ross  P.G.A.  A.M.R. 《Higher Education》1982,11(4):485-496

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Pressing Issues in College Counseling: A Survey of American College Counseling Association Members     

Timothy B. Smith  Brenda Dean  Suzanne Floyd  Christopher Silva  Momoko Yamashita  Jared Durtschi  Richard A. Heaps 《Journal of College Counseling》2007,10(1):64-78

The authors conducted a survey of members of the American College Counseling Association to ascertain the experiences and opinions of college counselors on several pressing issues within the college counseling profession. Survey results from 133 respondents indicated that counseling centers may benefit from increasing the number of group counseling interventions by increasing the multicultural competence of services provided, by implementing crisis/disaster mental health initiatives, and by more effectively consulting with other professionals on campus.  相似文献   

Complexity in Science Learning: Measuring the Underlying Dynamics of Persistent Mistakes     

Ethan Fleuchaus  Adam W. Kiefer  Paula L. Silva 《Journal of Experimental Education》2020,88(3):448-469

Abstract

Mistaken beliefs pose a barrier to science learning. For this reason, it is important to understand the circumstances in which they emerge and change. In the current paper, we apply complexity theory to shed light on the nature of mistaken beliefs. The strength of this approach lies in conceptualizing beliefs as dynamic stabilities, a well-defined construct that can be indexed precisely. For example, Recurrence Quantification Analysis (RQA) can determine the presence of dynamic stabilities by analyzing variability in time-series data. We applied this analytical tool to probe for mistaken beliefs in a beam-balancing task, a task that is known to elicit mistaken beliefs in preschoolers. Using a case-study design with four preschoolers, we tracked children’s hand position with motion sensors as they balanced various beams. The resulting time series of hand position was submitted to RQA, yielding two important results: First, we found that consistent mistakes in trying to balance the beams were not always accompanied by dynamic stability. This undermines the common assumption that overt consistency in task performance is sufficient to conclude the presence of beliefs. Second, we found strong individual differences over time, as children explored the balance beams. Applications to science education are discussed.

• Highlights

• A classical task of beam balancing was used to explore the underlying dynamics of children’s mistaken beliefs.

• Moment-to-moment hand movements were tracked and subjected to a multi-dimensional recurrence quantification analysis (RQA).

• Dynamic stability was captured through percent laminarity (%LAM), a measure of rigidity in children’s explorations.

• The RQA measure of %LAM shed light on patterns of stability that were not available from the analysis of overt behavior.

• In line with complexity theory, a model of persistent mistakes is offered that has important implications for science education.

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Lost Choices and Eugenic Dreams: Wrongful Birth Lawsuits in Popular News Narratives     

Vesta T. Silva 《传播与批判/文化研究》2013,10(1):22-40

The discourses of wrongful birth lawsuits can provide important insights into the ways in which genetic models of health and responsibility are manifesting themselves in the twenty-first century. These lawsuits emphasize the concept of individual choice in ways that largely elide a significant narrowing in our understandings of what it means to be healthy. By placing the focus on the individual, the discussions of disability and the lack of social support for those with disability disappears from the conversation, making abortion seem like the only moral, and responsible, choice for families facing the possibility of a disabled child.  相似文献   

Quantifying the interdisciplinarity of scientific journals and fields     

F.N. Silva  F.A. Rodrigues  O.N. Oliveira  L. da F. Costa 《Journal of Informetrics》2013,7(2):469-477

There is an overall perception of increased interdisciplinarity in science, but this is difficult to confirm quantitatively owing to the lack of adequate methods to evaluate subjective phenomena. This is no different from the difficulties in establishing quantitative relationships in human and social sciences. In this paper we quantified the interdisciplinarity of scientific journals and science fields by using an entropy measurement based on the diversity of the subject categories of journals citing a specific journal. The methodology consisted in building citation networks using the Journal Citation Reports^® database, in which the nodes were journals and edges were established based on citations among journals. The overall network for the 11-year period (1999–2009) studied was small-world and followed a power-law with exponential cutoff distribution with regard to the in-strength. Upon visualizing the network topology an overall structure of the various science fields could be inferred, especially their interconnections. We confirmed quantitatively that science fields are becoming increasingly interdisciplinary, with the degree of interdisplinarity (i.e. entropy) correlating strongly with the in-strength of journals and with the impact factor.  相似文献   

Grammar and text: an experiment in teacher training / Gramática y texto: un experimento en la formación de profesores     

Adriana Cardoso  Susana Pereira  Encarnação Silva 《Cultura y Educación》2013,25(2):456-463

Abstract

The article describes an experiment in teaching training undertaken in the context of the Masters programme in Teacher Training (for primary school teachers) at the Lisbon College of Education. The training experiment was able to: (1) incorporate mother tongue teaching into the broader curriculum; (2) relate the teaching of texts and the teaching of grammar; and (3) integrate the theoretical and practical dimensions of teacher training. The didactic scheme adopted relies on theoretical assumptions such as the concept of the integrated curriculum, the model of didactic sequence and the principles of socio-discursive interactionism. This training experiment has proved to be particularly useful for all the participants in the process (teachers of the course; trainee teachers; children in the schools; and the form teachers of the classes where the trainees do their practice). As a result of it, there has been a clear improvement in the quality of the teaching provided by our trainees in the domains of writing and grammar. The main advantages of this approach are that: (1) it structures the teaching of writing and grammar; (2) it uses projects to socially contextualize writing tasks; (3) it develops various language skills in an integrated fashion, while at the same time working on different areas of knowledge; and (4) it defines forms of spiral progression.  相似文献   

Traffic modeling for communications networks: A multifractal approach based on few parameters     

Maykon Renan P. da Silva  Flávio Geraldo C. Rocha 《Journal of The Franklin Institute》2021,358(3):2161-2177

In this work, in order to model network traffic processes, an efficient multifractal model is proposed based on fewer parameters than other models present in the literature, called 2PEMV. The 2PEMV model (2-Parameter Exponential Modeling for Multipliers’ Variance) is based on a multiplicative cascade in the wavelet domain capable of synthesizing communication network traffic traces which present characteristics such as self-similarity and wide Multifractal Spectrum Width (MSW). For such a purpose, in the 2PEMV model, the energy decay of the wavelet coefficients is captured by means of an exponential modeling for the multipliers’ variance along the cascade scales. The performance of the 2PEMV model to represent the network traffic characteristics is evaluated in comparison to other models present in the literature through simulations that are carried out using real communication network traffic traces.  相似文献   

Total Protein of Whole Saliva as a Biomarker of Anaerobic Threshold     

Miguel Sordi Bortolini Junior  Guilherme Gularte De Agostini  Ismair Teodoro Reis  Romeu Paulo Martins Silva Lamounier  Jeffrey B. Blumberg  Foued Salmen Espindola 《Research quarterly for exercise and sport》2013,84(3):604-610

Saliva provides a convenient and noninvasive matrix for assessing specific physiological parameters, including some biomarkers of exercise. We investigated whether the total protein concentration of whole saliva (TPWS) would reflect the anaerobic threshold during an incremental exercise test. After a warm-up period, 13 nonsmoking men performed a maximum incremental exercise on a cycle ergometer. Blood and stimulated saliva were collected during the test. The TPWS anaerobic threshold (PAT) was determined using the Dmax method. The PAT was correlated with the blood lactate anaerobic threshold (AT; r = .93, p < .05). No significant difference (p = .16) was observed between PAT and AT. Thus, TPWS provides a convenient and noninvasive matrix for determining the anaerobic threshold during incremental exercise tests.  相似文献