2,567 research outputs found
Children's access to urban gardens in Norway, India and the United Kingdom
Background: This study investigates access to gardens for children in Norway, India and the
United Kingdom and their respective potentials for sustainability learning. The focus is set upon
the significant variations concerning garden access within these three countries, within the specific
context of urban gardening at a city scale. The article explores three case study cities: Stavanger,
Norway; Mumbai, India; and Cardiff, UK. Previous research has shown that nature and garden
experiences can provide play opportunities, skills and sensuous perceptions that may lead to the
permanent retention of knowledge, and may awaken and unfold the child’s interests.
Material and methods: Conceptualized in theories of situated learning and place-based learning,
each researcher - native and/or living in Norway, UK and India, respectively - has gathered
qualitative data and focused on the phenomena she found to be appropriate for the study of each
respective city. The findings, based on literature studies and the author’s own experiences and
observations, are presented in form of narratives. A phenomenological and hermeneutical
framework and critical inquiry is used to give relevance to the complex interrelations between the
three researcher’s different backgrounds and perspectives.
Results: The narratives elucidate rather different characteristics, practices, activities and values
related to gardens in the three cities, where children interact in multiple ways with various kinds
of garden spaces. Children are typically close to nature in Stavanger, while very small ‘windowsills’
characterize the many childhood interactions with gardens in Mumbai and in Cardiff, children may
have access to both private and public gardens, depending upon their circumstances.
Conclusions: The three perspectives give inspirations for promoting children’s ecology,
sustainability, and intergenerational learning in urban garden spaces
Children's access to urban gardens in Norway, India and the United Kingdom
Background: This study investigates access to gardens for children in Norway, India and the
United Kingdom and their respective potentials for sustainability learning. The focus is set upon
the significant variations concerning garden access within these three countries, within the specific
context of urban gardening at a city scale. The article explores three case study cities: Stavanger,
Norway; Mumbai, India; and Cardiff, UK. Previous research has shown that nature and garden
experiences can provide play opportunities, skills and sensuous perceptions that may lead to the
permanent retention of knowledge, and may awaken and unfold the child’s interests.
Material and methods: Conceptualized in theories of situated learning and place-based learning,
each researcher - native and/or living in Norway, UK and India, respectively - has gathered
qualitative data and focused on the phenomena she found to be appropriate for the study of each
respective city. The findings, based on literature studies and the author’s own experiences and
observations, are presented in form of narratives. A phenomenological and hermeneutical
framework and critical inquiry is used to give relevance to the complex interrelations between the
three researcher’s different backgrounds and perspectives.
Results: The narratives elucidate rather different characteristics, practices, activities and values
related to gardens in the three cities, where children interact in multiple ways with various kinds
of garden spaces. Children are typically close to nature in Stavanger, while very small ‘windowsills’
characterize the many childhood interactions with gardens in Mumbai and in Cardiff, children may
have access to both private and public gardens, depending upon their circumstances.
Conclusions: The three perspectives give inspirations for promoting children’s ecology,
sustainability, and intergenerational learning in urban garden spaces
O ENSINO DE EMPREENDEDORISMO: DIRETRIZES INSTITUCIONAIS DO INSTITUTO FEDERAL DE SANTA CATARINA
A expansão definitiva do ensino de empreendedorismo foi na década de 1980 em virtude de críticas que começaram a proliferar envolvendo lacunas na formação em gestão, assim como a expansão de periódicos especializados sobre o tema. Em uma das abordagens identificadas, há menção de que o estímulo ao empreendedorismo, que está entre as finalidades do Instituto Federal de Santa Catarina, apresenta-se como uma dessas possibilidades. O objetivo deste estudo é identificar como se apresenta o tema empreendedorismo no Instituto Federal de Santa Catarina evidenciando as diretrizes de atuação nos principais documentos institucionais. A metodologia utilizada para o presente estudo se deu pela análise documental, buscando o contexto e a abordagem onde o empreendedorismo estaria inserido na instituição. Este tema visa possibilitar a contínua troca de informações e conhecimento com o mundo do trabalho, conduzindo o aluno para a continuidade de sua formação nos diferentes níveis de ensino. A ausência desta temática em outros documentos institucionais, para além do Plano de Desenvolvimento Institucional-PDI, demonstra as divergências teóricas dentro da instituição
Multifocal infantile haemangioma: a diagnostic challenge
We describe a case of a newborn who presented with multiple dark red macules that developed into red-to-purple papules associated with thrombocytopaenia. Abdominal ultrasound showed multiple hyperechoic papules and nodules. Endothelial cells from a skin biopsy stained positively for endothelial cell glucose transporter 1, which was consistent with a diagnosis of multifocal infantile haemangioma. At the age of 2?months, the child developed intestinal bleeding and anaemia. Upper and lower endoscopies showed no intestinal haemangiomas. Oral treatment with propranolol (3?mg/kg/day) resulted in complete involution of the skin and hepatic haemangiomas over the period of treatment, which lasted until the child was aged 15?months. This is a rare case of multifocal cutaneous haemangioma with hepatic and probable intestinal involvement, successfully treated with propranolol
Direito a ter pai: abandono parental e a atuação da defensoria pública do estado de Minas Gerais
Child abandonment is a growing problem in Brazil, which affects children, teenagers
and adults, both in psychological, economical and legal ways. However, the
judicialisation of the matter contributes to an overload of the judicial system and a
deterioration on family relationships, which is why initiatives for extrajudicial resolution
of conflicts stand out. In this sense, the Public Defender's Office of Minas Gerais is
aligned with the importance of the issue, promoting initiatives such as “Mutirão Direito
a Ter Pai”, which is based on regularizing the situation of affiliation and the paternal
registration on the Birth Certificates of the beneficiaries, and also services such as
DNA tests and procedural representation to the underprivileged. For this, were used
the inductive method and the quantitative analysis of IBGE, CNJ and the Public
Defender's Office data.Trabalho de Conclusão de Curso (Graduação)O abandono parental se mostra um problema crescente no Brasil, afetando crianças,
jovens e adultos psicológica, econômica e juridicamente. No entanto, a judicialização
da matéria contribui para uma sobrecarga do sistema judiciário e um desgaste nas
relações familiares, razão pela qual se destacam iniciativas de solução extrajudicial
dos conflitos. Nesse sentido, o presente trabalho busca verificar se a Defensoria
Pública de Minas Gerais tem contribuído para a notoriedade da questão, através
principalmente do “Mutirão Direito a Ter Pai”, que se baseia na regularização da
situação de filiação e do registro paterno na Certidão de Nascimento dos assistidos,
também fornecendo serviços como exames de DNA e representação processual aos
hipossuficientes. Para isso, foi utilizado o método indutivo e a análise quantitativa de
dados do IBGE, CNJ e da própria Defensoria Pública
Estudos sistemáticos em Bredemeyera Willd
Orientador: Prof. Dr. José Floriano Barêa PastoreCoorientador: Prof. Dr. Renato GoldenbergDissertação (mestrado) - Universidade Federal do Paraná, Setor de Ciências Biológicas, Programa de Pós-Graduação em Botânica. Defesa : Curitiba, 10/08/2018Inclui referênciasResumo: Bredemeyera Willd. é um dos 27 gêneros da família Polygalaceae (ca. de 1.200 espécies). O gênero Bredemeyera s.str., como aqui delimitado, é reconhecido com 13 espécies e distribuição neotropical, desde o México até o nordeste do Paraguai. Este gênero ocorre em todas as regiões do Brasil, exceto no extremo sul do país, ou seja, nos Estados de Santa Catarina e Rio Grande do Sul. O gênero é aqui reconhecido pelas seguintes características morfológicas: lianas lenhosas a pequenos arbustos, com flores com cinco sépalas, sendo três externas e duas internas petalóides; a corola é formada por 5 pétalas duas laterais, a carena, e duas pelas rudimentares; os frutos são cápsulas loculicidas e a sementes apresentam um arilo pequeno do qual partem longos tricomas que ultrapassam o comprimento da própria semente. Esta dissertação é apresentada em três capítulos: o primeiro é uma revisão taxonômica do gênero Bredemeyera s.str., o segundo capítulo apresenta duas novas espécies, B. atlantica M.Mota & J.F.B.Pastore e B. petiolata M.Mota & J.F.B.Pastore (artigo publicado em 2018 na revista Phytotaxa) e por fim, o terceiro capítulo, que trata da delimitação do gênero Bredemeyera, incluindo a segregação do gênero monotípico Ramphopetalum J.F.B.Pastore & Mota e o reestabelecimento dos gêneros Hualania Phil. e Monrosia Grondona (em processo de revisão na revista Taxon). Palavras chave: Neotrópicos, sistemática, Fabales, filogenia molecular, espécie nova.Abstract: Bredemeyera Willd. is one of the 27 genera in the family Polygalaceae (ca. 1,200 species). The genus Bredemeyera s.str., as delimited here, is recognized with 13 species and neotropical distribution, from Mexico to northeast Paraguay. This genus occurs in all regions of Brazil, except the extreme south, in the states of Santa Catarina and Rio Grande do Sul. This genus is here recognized by the following morphological features: woody lianas to small shrubs, flowers with five sepals, being three external and two internal, petaloid (wings); the corolla has five petals, being two lateral, the keel, and two rudimentary ones; the fruits are loculicidal capsules with small aryled seed, and the aryl has long trichomes, which are longer than the seed itself. The present thesis comprises three chapters: 1. Taxonomic revision of the genus Bredemeyera s.str.; 2. Two new species, B. atlantica M.Mota & J.F.B.Pastore and B. petiolata M.Mota & J.F.B.Pastore (article published in 2018 in Phytotaxa ); 3. Generic delimitation of Bredemeyera, including the segregation of the monotypic genus Ramphopetalum J.F.B.Pastore & Mota and the reestablishment of the genera Hualania Phil. and Monrosia Grondona (under review in Taxon). Key words: Neotropical, systematic, Fabales, molecular phylogeny, new species
Wetting behaviour of femtosecond laser textured Ti-6Al-4V surfaces
The aim of the present work was to investigate the wetting behaviour of biomedical grade Ti-6Al-4V alloy surfaces textured by a femtosecond laser treatment. The material was treated in ambient atmosphere using an Yb: KYW chirped-pulse-regenerative amplification laser with a wavelength of 1030 nm and a pulse duration of 500 fs. Four main types of surface textures were obtained depending on the processing parameters and laser treatment method. These textures consist of: (1) nanoscale laser-induced periodic surface structures (LIPSS); (2) nanopillars; (3) a bimodal roughness distribution texture formed of LIPSS overlapping microcolumns; (4) a complex texture formed of LIPSS overlapping microcolumns with a periodic variation of the columns size in the laser scanning direction. The wettability of the surfaces was evaluated by the sessile drop method using distilled-deionized (DD) water and Hank's balanced salt solution (HBSS) as testing liquids. The laser treated surfaces present a hydrophilic behaviour as well as a high affinity for the saline solution, with equilibrium contact angles in the ranges 24.1-76.2. for DD water and 8.4-61.8. for HBSS. The wetting behaviour is anisotropic, reflecting the anisotropy of the surface textures. (c) 2012 Elsevier B.V. All rights reserved
Contention in multicore hardware shared resources: Understanding of the state of the art
The real-time systems community has over the years devoted considerable attention to the impact on execution timing that arises from contention on access to hardware shared resources. The relevance of this problem has been accentuated with the arrival of multicore processors. From the state of the art on the subject, there appears to be considerable diversity in the understanding of the problem and in the “approach” to solve it. This sparseness makes it difficult for any reader to form a coherent picture of the problem and solution space. This paper draws a tentative taxonomy in which each known approach to the problem can be categorised based on its specific goals and assumptions.Postprint (published version
Cytotoxicity and Effects of a New Calcium Hydroxide Nanoparticle Material on Production of Reactive Oxygen Species by LPS-Stimulated Dental Pulp Cells
Introduction: The aim of this study was to synthesize and characterize calcium hydroxide (CH) nanoparticles [CH-NP] and compare the cytotoxicity of these materials with that of mineral trioxide aggregate (White MTA) in human dental pulp mesenchymal cells (hDPMCs) stimulated by lipopolysaccharide (LPS). Methods and Materials: The CH-NP were synthesized by the co-precipitation method, and the physical properties were investigated through X-ray diffraction, scanning electron microscopy (SEM) and energy dispersive x-ray spectrometry (EDS). LPS-stimulated hDPMCs were placed in contact with different dilutions of culture media previously exposed to CH-NP and white MTA for 24 h. The groups were tested for cell viability by MTT formazan and Alamar Blue assays, the production of nitric oxide (NO) by Griess method and the production of reactive oxygen species (ROS) by means of the fluorescent oxidant-sensing probe 2’,7’-dichlorodihydrofluorescein diacetate (DCFH-DA). Control groups for viability test were maintained in DMEM (not LPS-stimulated). For NO and ROS production, negative control group was cells in DMEM, and positive control was cells stimulated by LPS. The results were statistically analyzed by two-way ANOVA, Tukey’s test and Dunnett’s test (ɑ=0.05). Results: The results showed that the cell viability remained above 50% in all materials, independent of the dilution in MTT formazan and Alamar Blue tests. MTA showed a reduction in NO production at dilutions of 1:4 to 1:32 compared with the positive control group (P<0.05). The tested materials exhibited lower ROS production by DPMCs than that by cells in the positive control group (P<0.05), and similar ROS production to the negative control group (P>0.05). Conclusion: The outcomes of present in vitro study showed that MTA and [CH-NP] were not cytotoxic materials, with MTA closer to the results of control group (DMEM). MTA and [CH-NP] reduced ROS production at basal levels, with MTA inhibiting NO production at higher dilutions
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