The design of surfaces, between empathy and new figuration

Nowadays design languages seem anew defined through images and figures that appear increasingly distant from abstraction. In the time that we live in, where it is prevailing a dominance of individual needs rather common desires, an abandon of abstraction in favour of new figuration, stimulates the opportunity to investigate a new dyad, ‘Project and Empathy’; these terms could summarize well the expanded modality of physical and psychological interaction between people – as individual – and artefacts, through the increasing role of surfaces. The whole world of postmodern image, especially through the digital technologies, tends to offer hyper realistic aesthetic simulacra, altered nature: this is the current world of extension of feelings and sense, in which we are immersed daily. This condition affect the approaches to design, which require a new thinking around technologies, method and tools from training to practice the activity of design: a new attitude for materiality of things, beyond the immateriality of digital reality

Birman's conjecture for singular braids on closed surfaces

Let $M$ be a closed oriented surface of genus $g\ge 1$, let $B_n(M)$ be the braid group of $M$ on $n$ strings, and let $SB_n(M)$ be the corresponding singular braid monoid. Our purpose in this paper is to prove that the desingularization map $\eta: SB_n(M) \to \Z [B_n(M)]$, introduced in the definition of the Vassiliev invariants (for braids on surfaces), is injective

Artin monoids inject in their groups

We prove that the natural homomorphism from an Artin monoid to its associated Artin group is always injectiveComment: 20 pages, 3 figures, see http://math.u-bourgogne.fr/topolog/pari

Mapping class groups of non-orientable surfaces for beginners

The present paper are the notes of a mini-course addressed mainly to non-experts. It purpose it to provide a first approach to the theory of mapping class groups of non-orientable surfaces

From braid groups to mapping class groups

This paper is a survey of some properties of the braid groups and related groups that lead to questions on mapping class groups

SIDATIM: assessing the potential of new biomass crops and valuable timber trees in agroforestry systems

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Emotional Outbursts and Their Effects on Peer Relations in the Preschool Classroom

Emotions and emotion regulation play a role in a child’s interactions with their peers. This study uses observations collected in two preschool classrooms to address the questions of what causes emotional outbursts and how emotional outbursts affect the children involved. In this study, an emotional outburst is defined as an occurrence in which the child is making loud noises and having a physical reaction to an event that has just occurred. Participants were 22 children from the ages of three to five years old. Observational data were collected, and analyzed through categorization and interpretation, and results from this study suggest that there are many common causes of emotional outbursts in the children observed. The findings do not indicate obvious effects of emotional outbursts on children in the vicinity of the outburst