Chemical and isotope characterization of lead finds at the Santa Barbara nuraghe (Bauladu, Sardinia)

Twenty lead finds, unearthed in Late Bronze–Early Iron Age levels at the Santa Barbara nuraghe situated at Bauladu in Sardinia (Italy), have been examined. Their chemical composition has been determined using the ICP-MS plasma-mass technique (Cu, Fe, As, Ag, Sn, Sb, Bi, Zn, Cs, Tl, Mo, Cd, In, Te, W, Th, U, Li, Se). Lead isotope ratios (208/206, 207/206, 206/204) have also been determined. The results are discussed in relation to the mineral source and some aspects of the metal extraction processes. The finds are composed of high purity lead obtained using a smelting at low temperature. Based on the isotope ratios it has been possible to establish that the metal originated from Sardinian ore deposits type.     

How service values influence the processing of word-of-mouth in the evaluation of credence beliefs

The purpose of this paper is to assess the effect of service values on the processing of word-of-mouth (WOM) information, and their impact on a complex belief in a high-involvement service context. Hypotheses are tested on survey data collected from 378 respondents facing a high-involvement service choice. The results suggest that two distinct information processing routes are active when consumers (here prospective students) evaluate complex beliefs. Furthermore, service values have distinct effects on the processing of WOM information. Self-oriented values foster more cognitive processing, whereas socially oriented values have the opposite effect. Considering the reasons as to why a service is needed (service values) should be a focus for marketers since they can be a powerful persuasion approach affecting the processing of WOM. This study contributes to earlier research on higher education marketing by incorporating service values into the pre-purchase phase of prospective students’ decision-making.     

Understanding Regulated Learning in Situative and Contextual Frameworks

Research on self-regulated learning has focused predominantly on a static individual level to explain various strengths and weaknesses of learners. However, much learning today is highly interactive and technologically enhanced, which an individually oriented perspective to regulated learning does not consider. In this article we discuss regulation by bringing situational and contextual variation of regulated learning into focus. We introduce a situative perspective on regulation of learning and give arguments and examples on how it can offer a way to conceptually and empirically grasp multiple layers of regulated learning in social contexts. We also compare the given perspective with sociocognitive and sociocultural perspectives to regulated learning. We conclude that the situative perspective can significantly enrich understanding about individual and group learning as a regulated activity, because it offers a way to examine regulation beyond the individual while not losing sight of learners as individual subjects.     

Student teachers’ patterns of reflection in the context of teaching practice

This study clarifies the basic structure of student teachers’ reflective thinking. It presents a constructivist account of teacher knowledge through a detailed analysis of various patterns of reflection in student teacher portfolios. We aim to gain a greater understanding of the process and outcomes of portfolio writing in the context of teaching practice. By closely analysing portfolio texts, we defined six main starting points for reflective episodes and several patterns under each of them. Also, the patterns of reflective episodes were analysed according to their deductive and inductive dimensions, together with their static and dynamic features. According to our results, it is possible that student teachers can reflect beyond solely practical issues on teaching, articulate multiple concerns about practice and elaborate them in an integrative manner as well as learn both from theory and from practice as a result of reflection for their future profession.     

How research on self-regulated learning can advance computer supported collaborative learning / El papel de la investigación sobre aprendizaje autorregulado en el desarrollo del aprendizaje colaborativo asistido por ordenador

Abstract

Learning in and for the twenty-first century requires motivational competence and effective learning strategies in individual and collaborative learning settings. Being able to strategically regulate one’s own learning and that of others is a vital and increasingly important skill. Most learners are not equipped to regulate and direct their own learning or might lack the motivation to do so. Additionally, if self-regulation of learning is difficult at the individual level, it becomes even more difficult when interacting with peers and in teams, known as co-regulation and shared regulation. Fortunately, recent research has shown that regulation can be both learned and also often supported with self-regulation tools and/or environments. This paper discusses recent trends in self-regulated learning research, focusing especially on regulating learning in computer supported collaborative learning. It is concluded that today’s education should help learners become aware of their strengths and weaknesses in a learning situation, so as to help them develop skills and strategies to continue to learn throughout their lives.     

Cardiorespiratory performance and physical activity in normal weight and overweight Finnish adolescents from 2003 to 2010

We investigated changes in cardiorespiratory performance, BMI and leisure-time physical activity among Finnish adolescents from 2003 to 2010. In addition, we compared cardiorespiratory performance levels between normal weight and overweight adolescents, grouped according to their physical activity. Participants were a national representative samples of 15–16-year-old adolescents in their final (ninth) year of comprehensive school in 2003 (n = 2258) and in 2010 (n = 1301). They performed an endurance shuttle run test and reported their height and weight and leisure time physical activity on a questionnaire. Results showed no significant secular changes in cardiorespiratory performance from 2003 to 2010. The mean BMI increased in boys. Leisure-time physical activity increased among normal weight girls. Adolescents of normal weight had better cardiorespiratory performance than those classified as overweight at both assessment points. BMI-adjusted physical activity was a significant determinant for cardiorespiratory performance among overweight adolescents, and very active overweight adolescents had similar cardiorespiratory performance levels as moderately active adolescents of normal weight. The results of the present study support the idea that the physical activity has the great importance for the cardiorespiratory performance in adolescents. Overweight adolescents, in particular, benefit from higher levels of physical activity.     

Generalized achievement goals and situational coping in inquiry learning

This study examined situation-specific coping strategies of students with different achievement goals as they take part in inquiry learning. A case study was conducted in a Finnish elementary school. 21 ten-year-old students participated in the study. Two types of data were collected: (1) Students self-reported questionnaires on achievement goals, (2) Video data on the students' learning processes and social interaction. The results revealed the importance of a situative perspective in instructional design, since the students not only differed in their coping attempts regarding their initial goals but also according to their individual situational interpretations that mediated their active coping attempts. Some of the non-learning-focused students had difficulties engaging in the working procedures. A lack of teacher's concrete and precise guidance in both cognitive and motivational sense appeared to explain this phenomenon.     

Personal and Contextual Contributors to Young Children's Activity-Based Perceived Self-Efficacy

This study investigated personal and contextual influences to young children's perceived self-efficacy (SE) in social and independent learning situations. The participants were children (n?=?24) 6–8 years old from four Finnish elementary school classrooms. First, teachers from each classroom were asked to rate their students’ social competence (SC). Second, the participants were videotaped in 45 social and 15 independent learning situations, and later interviewed about their SE perceptions using video-stimulated recall. Participants with higher SE demonstrated more stable perceptions and greater involvement in social learning situations. However, a statistically significant relationship between perceived SE and SC was not found. Participants also identified 4 factors promoting perceived SE: positive emotional states, mastery experiences, personal strategic behavior, and contextual support.     

Understanding the dynamics of motivation in socially shared learning

The aim of this study was to gain an understanding of the dynamics of motivation in socially shared learning from both individual and group perspectives. Higher education students’ motivation was analysed in the context of collaborative learning tasks, applying quantitative and qualitative methods. The research questions were: (1) what kind of motivations and task-specific goals do individual students have and (2) how do they combine their motivations as a group in socially shared learning? Three- to five-member groups of university students (n = 99) were observed as they worked with three different collaborative learning tasks in an educational psychology class. The experiment included differently organised conditions for collaboration, ranging from face-to-face situations to virtual collaboration situations which were perceived as motivationally and emotionally challenging. Self-reports and video-tapings were collected. The results show that the students who studied in face-to-face settings reported significantly more learning goals and fewer performance goals during the collaborative tasks than the students in the virtual group. Therefore, the collaborative process of volunteer face-to-face groups was analysed qualitatively and an attempt was made, by observing their shared motivation, to uncover the reasons why they achieved their learning goals.