589 resultados para Friedel-Crafts
Resumo:
Charge density and magnetization density profiles of one-dimensional metals are investigated by two complementary many-body methods: numerically exact (Lanczos) diagonalization, and the Bethe-Ansatz local-density approximation with and without a simple self-interaction correction. Depending on the magnetization of the system, local approximations reproduce different Fourier components of the exact Friedel oscillations. (C) 2008 Elsevier B.V. All rights reserved.
Resumo:
Students are shown working on pianos in various states of construction in the Piano Crafts Department at the New York Trade School. Black and white photograph.
Resumo:
Three students are shown working in the Piano Crafts Department at the New York Trade School. The two students in the foreground appear to be working on the construction of a piano. Black and white photograph.
Resumo:
Here a professor in the Piano Crafts Department at the New York Trade School is shown helping a student. Black and white photograph.
Resumo:
The synthesis, characterisation and polymerisation studies of a homologous series of α,ω-bis(pyrrolyl)alkanes are described. These α,ω-bis(pyrrolyl)alkanes were produced using Friedel–Crafts acylation followed by reduction of the carbonyl group using Red-Al®. Chemical polymerisation of the resultant dimers using FeCl3 produced poly(α,ω-bis(pyrrolyl)alkane) films, which were characterised by SEM, FTIR and tested for conductivity.
Resumo:
Contemplating the lCAR Agenda, I wondered what value was to be found in history and is historical research an appropriate methodology for this contemporary discussion? I reviewed articles from social sciences and marketing literature that discuss history as a research methodology and present some of the criticisms and benefits. Social movements like the Arts and Crafts contain themes and agendas that resonate today, including protest and boycott, sustainable solutions, and technophobia that can be found in contemporary crafts movements like Stitch'nBitch. Researchers, heeding some cautions, can use history to build agendas that contribute directly to the study of anti consumption
Resumo:
Community arts can provide older people with opportunities to enhance quality of life, provide a sense fulfillment, and create a space for teaching, learning and sharing. Our research question asks how and why do older Australian people active in society engage with craft. This article discusses one particular case study from a larger ongoing joint research project, Well-being and ageing: community, diversity and the arts in Victoria. This project, begun in 2008 has been undertaken by academic researchers from two metropolitan Australian universities in Melbourne, Victoria (Deakin University and Monash University). This research has entailed a number of case studies of individual visual and performing arts community organizations that cater for older people active in community. This phenomenological qualitative case study sought in-depth understandings of the group of découpeurs (all members of the Découpage Guild Australia). Phenomenological research entails an exploration of participants’ lifeworlds, experiences, understandings, and perceptions. The data are reported under three over-arching themes: Learning and Teaching; Being Creative; and Well-being. This study has demonstrated that craft engagement can provide participants with new learning experiences, teaching opportunities in a collaborative community, an outlet for their creativity, and fosters an enhanced sense of self and well-being.
