1,721,038 research outputs found
Cultural aspects in the conceptualization of active, bodily experience mathematics learning activities
No full textAn essential first step to investigating the implementation of a mathematics education research finding is to characterize within the research field the innovation being studied. The conceptualization and characteristics of the object under investigation may include aspects related to the mathematical culture of the explored specific context. Therefore, analysing the research perspectives of different cultural contexts may be relevant to bring out these features that would otherwise remain hidden. To this end, researchers in mathematics education can be pivotal enablers. This report presents cultural aspects in conceptualizing active, bodily experience mathematics learning activities that emerge from interviews with a selected group of Italian and Australian researchers
The Implementation of Active, Bodily Experience Mathematics Learning Activities: the Perspective of Italian Primary and Secondary School Mathematics Teachers
No full textDespite the growing emphasis on embodied education in mathematics research, it remains unclear how extensively these ideas permeate schools. Through an exploratory survey, we pinpoint common traits and differences in beliefs among a convenience sample of Italian primary and secondary school mathematics teachers, searching for contextual and individual factors that could influence the active, bodily experience mathematics learning (ABM) activities implementation. Teachers refer to the insufficient availability of suitable spaces and resources as the primary obstacle to implementation, while lack of familiarity and guidance is another significant challenge. Secondary school teachers, and in particular those who reported to integrate fewer such activities in the classroom, express concerns about time constraints, leading to diminished belief in the efficacy of ABM activities. Transfer of learning is reported by teachers as the greatest difficulty for students. Providing specific training, along with concrete examples of resources, is hypothesized to be a key supportive strategy
Corpo e movimento nella didattica della matematica. Paradigmi e contesti di apprendimento in Italia e Australia
No full textThe implementation of educational innovations and research findings is significantly influenced by cultural and contextual factors. In this paper, we will present a study carried out in Italy and Australia on the introduction at school of Mathematics active, bodily experience learning activities. Comparing two different teaching cultures, we revealed the presence of specific contextual features and cross-cultural characteristics, which can lead to a better understanding of those activities and their possible implementation. Thanks to in-depth interviews of a number of experts in Mathematics education in both countries, it was possible to observe emerging differences in how those activities are conceived and could be declined in school practice in the two different contexts. Some cultural dissimilarities stemming from the Mathematics and Mathematics education cultural traditions of the two states under consideration, which also figured in their educational policies, are also discussed
Seasonal variations in morphometric features and haemolymph parameters of female and male crabs (Carcinus aestuarii) from the Lagoon of Venice.
No full textIn the Lagoon of Venice, fishing and farming of Carcinus aestuarii are important
economical activities. Despite this species is widely used in biomonitoring
studies, no information concerning seasonal variations in morphometric features
and haemolymph parameters of crabs are available in the literature.
To fill this gap, in the present study seasonal variations in morphometric features
and haemolymph parameters from both male and female crabs were evaluated
for the first time. Crabs were collected seasonally (November 2010 to August
2011) in the Lagoon of Venice, and total haemocyte count (THC), haemocyte
diameter and volume, haemolymph glucose concentration, total protein levels,
and phenoloxidase (PO) and N-acetyl-β-glucosaminidase (NAG) activities were
measured. Morphometric features included animal weight, width and length of
carapace, and width and length of the bigger chela. Crab moult stage was also
determined. All crabs used in this study were in intermoult stage and males were
always bigger than females. Two-way ANOVA analysis revealed significant
effects of the variable “season” on THC and haemocyte volume, whereas the
variable “gender” influenced significantly haemocyte diameter. Season and
gender influenced significantly haemolymph glucose concentration, whereas
haemolymph protein levels were season-dependent. Haemolymph PO and NAG
activities resulted influenced significantly by both season and gender. Two-way
ANOVA analysis indicated a significant effect of season on crab morphometric
features. Overall, results obtained demonstrated that cellular and biochemical
parameters and crab morphometric features varied significantly during the study,
depending on both season and animal gender. This aspect should be taken into
account when biomonitoring studies are performed with crabs, since seasonal
variability in biological responses may influence animal responses to stressors
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Progetto Stage 1991-1994. Rapporto sul 2° ciclo
No full textPresentazione di un anno di attività del progetto Stage realizzato presso la Facoltà di Scienze Statistiche dell'Università di Padov
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
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