1,720,972 research outputs found
[Jardim Botânico : Porto : Plano de Rega V : Arboreto (Bétulas)]
No full textDocumento[Jardim Botânico : Porto : Plano de Rega V : Arboreto (Bétulas)] / Renato Raul Dantas Barreto. - 1970-07-28. - 2 plantas em 1 folha : col. ; 30,5 x 43 cm
N.º de desenho: 162_2RA-1
Parental Mediation and Cyberbullying: A Narrative Literature Review
Full text linkCyberbullying represents a widespread Internet-based risk among children and adolescents. Therefore, scientific research largely focused on protective factors, such as the increasingly explored parental mediation (PM) of technology use. This study reviewed the last decade's literature about the relationship between cyberbullying and PM, considering the main variables involved in this relationship. A total of 18 papers were selected, including samples aged between 8 and 18 years and showing mixed findings on the preventive role of restrictive PM strategies on cyberbullying. However, active and co-viewing PM decreased the risk of children and adolescents’ involvement in cyberbullying. Moreover, PM was found to be effective in preventing cyberbullying, especially among children rather than adolescents. Furthermore, PM seemed to protect against cyberbullying and related psychopathological symptoms, such as depression and anxiety. Consistency between general parenting style and cyber-specific PM styles decreased the risk of cyberbullying, while an inconsistent PM style exacerbated this risk. Finally, important implications for future research directions were extensively explored in the discussion section
Problematic internet use and emotional dysregulation among young people: A literature review
Full text linkObjective: In recent years scientific interest in Internet use disorders, especially among young people, has grown dramatically. Within this contemporary research field, difficulties in regulating emotions have been increasingly explored in association with problematic Internet use (PIU). Indeed, individuals who experience difficulties in emotion regulation might be more exposed to the risk of developing PIU. Therefore, the present study aimed to review the literature from the last ten years focused on the relationship between young people’s emotional dysregulation and PIU, taking into account the main variables involved in this relationship and possible gender-related differences. Method: This review included studies published between 2010 and 2020 that were indexed in major databases with the following keywords: emotion regulation, problematic Internet use, Internet addiction, social network addiction, and social media addiction. In the selection process of the studies, close attention was paid for the mean age of the involved samples that had to range between 13 and 25 years. Results: A total of 23 studies satisfied the initial inclusion criteria and were included in the present literature review. Several reviewed studies found a strong association between emotion dysregulation and both PIU and problematic social networking with controversial gender-based findings. Furthermore, the relationships among emotional dysregulation, PIU, attachment styles, and metacognitions were largely explored. Conclusions: Overall, the present review showed that problematic Internet use might represent a coping strategy to compensate for emotional regulation deficits. The lack of social support and the lack of a good parent-adolescent relationship seem to negatively affect emotional regulation abilities, which in turn increase the risk of developing PIU. Moreover, good metacognitive abilities might represent a protective factor towards emotional dysregulation and PIU. Finally, males with emotional dysregulation are likely to be more problematically engaged in Internet use than females. These results might have important practical implications to implement health prevention/promotion programs, emotion regulation-based training programmes and therapies
Problematic Media Use among Children up to the Age of 10: A Systematic Literature Review
Full text linkIntroduction: Digital screen media use has significantly grown in all age groups and at an increasingly young age, including toddlers, schoolers, and primary school children. Although there is evidence that excessive early childhood media exposure can lead to several negative developmental outcomes, no systematic review on Problematic Media Use (PMU) of children under 10 years old have been provided. The aim of the present systematic review was to identify (i) the main instruments used to measure children’s PMU across different studies; (ii) the risk and protective factors which might increase or reduce children’s PMU; and (iii) the negative outcomes associated with children’s PMU. Methods: This study was conducted following the systematic review guidelines proposed in the PRISMA statement. A total of 35 studies published between 2012–2022 and with a mean sample age between 0 and 10 years old were ultimately included in this literature review. Results: Use of media for more than 2 h a day, male gender, and higher age increased the risk of developing PMU among children. PMU led to several negative consequences for children’s development and well-being (e.g., more problematic behaviors, sleep problems, higher depressive symptoms, lower emotional intelligence, and lower academic achievements). Children who experienced negative psychological symptoms, a dysfunctional parent–child relationship, and difficulties in school context were more prone to develop PMU. However, an authoritative parenting style and restrictive parental mediation reduced the risk of developing PMU among children. Finally, self-report measures specifically designed to get the younger children’s perspective are still few and not so widely used. Conclusions: Overall, this research field is still in its infancy and needs further investigation. Likely, a dysfunctional family system can lead children to experience emotional distress and negative psychological symptoms, which they try to manage by escaping into the virtual world, thus increasing the risk of developing PMU. As the children’s PMU is closely affected by the family environment, future prevention interventions should target both children and their parents to improve their self-regulatory and mentalizing capabilities, as well as parental mediation strategies and general parenting practices
What about young adults’ photo manipulation activity? The predictive role of body shame and the mediating effect of body esteem
No full textIn recent years, the centrality of photos on Social Networking Sites (SNSs) dramatically increased among young adults. The particular attention addressed to visual self-presentation might lead to body shame, influencing individuals’ body esteem and, likely, promoting photo manipulation (PM). Indeed, manipulating photos to alter how the body appears might be driven by the need to improve self-esteem and reduce body shame, albeit by digitally modified body image. Consequently, two studies were conducted. Study1 psychometrically evaluated the PM scale in a sample of Italian young adults (N = 922). Study2 verified the direct and indirect effect of body shame on PM, testing the mediating effect of body esteem and the moderating effect of gender (N = 595). The PM scale for young adults showed good psychometric properties. The tested mediation model revealed that body shame was both directly and indirectly associated with PM, via body esteem appearance in both male and female participants and via body esteem attribution among young men (R2 = 0.204; p <.001). Implications for young adults’ appearance-related issues are discussed
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
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
Bike Network Design: An approach based on micro-mobility geo-referenced data
No full textCycling and micro-mobility, in general, have been long promoted as sustainable and suitable modes of transport due to emission mitigation, congestion reduction and improvements to users' health and lifestyle. However, as most cities in the world have followed a car-centric development, their bicycle network is often highly fragmented, constituting the biggest barrier for attracting new users. This paper introduces a data-driven procedure based on micro-mobility geo-referenced data collected in the city of Rome (Italy). The aim is to identify corridors of high-density micro-mobility demand through an iterative clustering procedure and to evaluate potential growth scenarios of the bicycle network by locating the strategic missing links in the existing infrastructure to achieve a fully connected bicycle network that maximizes the overall usage of deployed bike lanes. The procedure has been applied to the city of Rome (Italy) adopting point data of the e-scooter sharing operator Dott
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