Evaluation of Methodologies for Assessing Self-Healing Performance of Concrete with Mineral Expansive Agents: An Interlaboratory Study

Self-healing concrete has the potential to optimise traditional design approaches; however, commercial uptake requires the ability to harmonize against standardized frameworks. Within EU SARCOS COST Action, different interlaboratory tests were executed on different self-healing techniques. This paper reports on the evaluation of the effectiveness of proposed experimental methodologies suited for self-healing concrete with expansive mineral additions. Concrete prisms and discs with MgO-based healing agents were produced and precracked. Water absorption and water flow tests were executed over a healing period spanning 6 months to assess the sealing efficiency, and the crack width reduction with time was monitored. High variability was reported for both reference (REF) and healing-addition (ADD) series affecting the reproducibility of cracking. However, within each lab, the crack width creation was repeatable. ADD reported larger crack widths. The latter influenced the observed healing making direct comparisons across labs prone to errors. Water absorption tests highlighted were susceptible to application errors. Concurrently, the potential of water flow tests as a facile method for assessment of healing performance was shown across all labs. Overall, the importance of repeatability and reproducibility of testing methods is highlighted in providing a sound basis for incorporation of self-healing concepts in practical applications

Rede de suporte social do idoso atendido por equipes de Saúde da Família Social support networks for elderly patients attended by Family Health teams

O envelhecimento tem especificidades marcadas pela posição de classe de indivíduos e grupos sociais, assim como pela cultura, política, condições socioeconômicas e sanitárias das coletividades. No atendimento às necessidades específicas dos idosos, os sistemas de suporte social são essenciais. O objetivo deste artigo é descrever o perfil sociodemográfico e a rede de suporte social do idoso assistido pela Estratégia Saúde da Família. Trata-se de um estudo transversal com idosos residentes em Dourados (MS). Utilizou-se questionário sociodemográfico e Mapa Mínimo de Relações do Idoso (MMRI). Foram entrevistados 503 idosos: 69,0% são do sexo feminino, 53,1% são analfabetos, 58,3% têm renda per capita inferior a um salário mínimo e 82,9% moram acompanhados. O MMRI destacou a família como maior provedora de cuidados em todas as dimensões avaliadas, mas os idosos possuem redes sociais pequenas. Os idosos assistidos pelas ESF têm baixa renda e escolaridade, e possuem uma rede de suporte social pequena para atender às suas necessidades.<br>The aging process has specific aspects marked by the class of individuals and social groups as well as cultural, political, socio-economic and sanitary conditions of the collective groups. Social support systems are essential for meeting the specific needs of the elderly. The aim of this paper is to describe the socio-demographic profile and the social support networks of elderly patients served by the Family Health Strategy. It's a cross-sectional study with elderly patients living in Dourados, in the state of Mato Grosso do Sul (Brazil). Data were collected using a socio-demographic questionnaire and a Minimum Relationships Map for the Elderly (MMRI). Of the 503 elderly patients interviewed, 69% were female, 53.1% were illiterate, 58.3% earned less than one minimum salary and 82.9% lived with others. The MMRI showed that the family was the most important provider of care in all the dimensions assessed, but the elderly have their own small social networks. Elderly patients attended by the Family Health teams have low incomes and little formal education, and social support networks that are too small to meet their needs

Apoio social a gestantes adolescentes: desvelando percepções Social support to pregnant adolescents: clarifying perceptions

Com o objetivo de descrever a percepção das gestantes adolescentes em relação ao apoio recebido durante a fase gestacional, realizou-se este estudo exploratório-descritivo de abordagem qualitativa. Participaram 12 adolescentes primigestas, frequentadoras dos serviços ambulatórios de saúde de Passo Fundo (RS). Por meio de entrevistas semiestruturadas, genogramas e ecomapas, obtiveram-se os dados analisados pela modalidade temática. Evidenciou-se a percepção da necessidade de apoio para superar o medo e o desafio da maternidade. Mães e parceiros foram percebidos como as principais fontes de apoio, provendo as dimensões afetiva e material. O saber do senso comum preencheu a dimensão de informação, e a dimensão emocional revelou a gravidez como mediadora na reconciliação com o pai. A percepção da dimensão de interação social positiva foi ofuscada pelo isolamento autoimposto. Assim, a percepção da adolescente sobre o apoio social recebido é nítida em relação ao núcleo familiar e circunscreve-se às pessoas com maior apego. A rede de cuidados extrafamiliar, incluindo os serviços de saúde, é frágil e gera a percepção das dificuldades psicossociais, sugerindo a necessidade de maior investimento dos profissionais da atenção básica de saúde na inserção das adolescentes primigestas em grupos de cuidado social, que influenciam no desenvolvimento saudável da gestação.<br>This descriptive-exploratory study using a qualitative approach was undertaken to describe the perceptions of pregnant adolescents in relation to social support provided during pregnancy. Twelve adolescents in their first pregnancy who frequented the outpatient health service in Passo Fundo in the state of Rio Grande do Sul (Brazil) participated in the study. The data was obtained by semi-structured interviews, genograms and ecomaps and was assessed by thematic analysis. It highlighted the need for support to overcome the fears and challenges of motherhood. The mothers and partners were perceived as the main sources of support in affective and material terms. Common sense knowledge prevailed in the information dimension and pregnancy as a mediator in the reconciliation with the father fulfilled the emotional dimension. The perception of the dimension of positive social interaction was blurred by self-imposed isolation. Thus the adolescent's perception of the social support received is clear in relation to the family nucleus and includes the people in the family circle. The network of care outside the family, including the healthcare services, is tenuous and generated the perception of psychosocial difficulties. This reveals the need for greater investment of primary healthcare professionals in the inclusion of first-time-pregnancy adolescents in social care groups, which ensure the healthy progress of the pregnancy