Relationship between respiratory tract diseases declared by parents and socioeconomic and cultural factors

OBJETIVO: Verificar a relação entre a doença respiratória das crianças declarada pelos pais e os seguintes aspectos: instituição de ensino da criança, grau de instrução dos pais, renda per capita, classe de consumo e grupo étnico da família. MÉTODOS: Estudo descritivo com enfoque retrospectivo, por meio da análise de dados coletados de pais de uma amostra de 959 escolares entre cinco e nove anos, que residiam no distrito estudado, em São Paulo, em 2004. O levantamento das informações foi realizado por meio de instrumento de coleta de dados. As doenças respiratórias pesquisadas no conjunto foram: rinite, rinossinusite, otite, laringite, faringoamigdalite, pneumonia e asma. A associação entre doença respiratória declarada e aspectos socioeconômicos foi avaliada pelo teste do qui-quadrado. RESULTADOS: Os pais de crianças que frequentavam escolas privadas declararam significativamente mais doenças respiratórias em seus filhos, em comparação aos pais de crianças que estudavam em escolas públicas. Os pais com grau de instrução superior ou ensino médio completo declararam significativamente mais doença respiratória em seus filhos. Não houve associação entre a doença respiratória com renda per capita, classe de consumo e etnia. CONCLUSÕES: A percepção mais apurada sobre a saúde dos filhos geralmente associa-se à maior escolaridade dos pais, o que também determina melhores condições de vida. Provavelmente, por isso, os pais cujos filhos frequentavam escolas privadas e com melhor nível de escolaridade referiram mais doenças respiratórias nas crianças. Infere-se, portanto, que conquistas na percepção de saúde e, consequentemente, nas condições de saúde associam-se à melhora do nível educacional.OBJECTIVE: To determine the association between children's respiratory diseases reported by parents and the following criteria: attendance at private or public school, parents' educational level; family per capita income; household socioeconomic class, and family ethnicity. METHODS: This retrospective descriptive study analyzed data collected from questionnaires responded by the parents of 959 schoolchildren between five to nine years old, living in the district selected for the study, in São Paulo, Brazil, over 2004. Respiratory diseases reported by parents were rhinitis, rhinosinusitis, ear infections, laryngitis, pharyngitis, pneumonia, asthma and asthma-like diseases. A chi-square test was used to evaluate the association between respiratory diseases reported by parents and family socioeconomic factors. RESULTS: Parents of children in private schools reported significantly more respiratory diseases in their children than those whose children attended public schools. More respiratory diseases were reported for children whose parents finished high school or college. There were no significant differences between respiratory diseases and per capita income, socioeconomic class or ethnicity. CONCLUSIONS: A more accurate perception about the health of children is generally associated with parents' higher education, which is also expected to ensure better living conditions. This may explain why parents with a higher level of education and whose children attended private schools reported more respiratory diseases in their children. Our findings suggest that improvement of educational level is associated with more accurate health perceptions and, consequently, better health conditions

Morfoanatomia foliar em mudas de Schinus terebinthifolius sob diferentes níveis de saturação hídrica.

As características morfológicas e anatômicas foliares de espécies vegetais são importantes indicadores de sua ecologia e de seus hábitats. Objetivou-se caracterizar a plasticidade fenotípica de Schinus terebinthifolius Raddi em diferentes condições de saturação hídrica. As mudas foram produzidas em tubetes plásticos, permanecendo em estufa por quatro meses, sendo irrigadas normalmente. Em seguida foram submetidas aos tratamentos: T1- testemunha, T2- alagamento parcial e T3- alagamento total. Após três semanas sob alagamento, foram realizadas descrições anatômicas foliares comparativas e avaliadas as características morfológicas área foliar, área específica foliar, espessura foliar, teor de água e densidade estomática. Durante 10 semanas foram observadas as modificações fenotípicas adaptativas. Foi observado aumento da espessura da base do caule, clorose e abscisão foliar, surgimento de lenticelas e raízes adventícias. Após três semanas de alagamento, não foram verificadas grandes modificações na morfologia das folhas, principalmente para a AF e AEF. Em T3, o teor de água foi maior e a espessura foliar menor. Não houve diferença entre os tratamentos para DE. Quanto aos aspectos anatômicos, observou-se uma redução na espessura do mesofilo e das nervuras, assim como a produção de compostos fenólicos por alguns tipos celulares. Os espaços intercelulares são progressivamente mais amplos nas plantas submetidas ao alagament

Measuring early childhood development in Brazil: validation of the Caregiver Reported Early Development Instruments (CREDI)

The present study aims to analyze the psychometric properties and general validity of the Caregiver Reported Early Development Instruments (CREDI) short form for the population-level assessment of early childhood development for Brazilian children under age 3.; The study analyzed the acceptability, test-retest reliability, internal consistency and discriminant validity of the CREDI short-form tool. The study also analyzed the concurrent validity of the CREDI with a direct observational measure (Inter-American Development Bank's Regional Project on Child Development Indicators; PRIDI). The full sample includes 1,265 Brazilian caregivers of children from 0 to 35 months (678 of which comprising an in-person sample and 587 an online sample).; Results from qualitative interviews suggest overall high rates of acceptability. Most of the items showed adequate test-retest reliability, with an average agreement of 84%. Cronbach's alpha suggested adequate internal consistency/inter-item reliability (α>0.80) for the CREDI within each of the six age groups (0-5, 6-11, 12-17, 18-23, 24-29 and 30-35 months of age). Multivariate analyses of construct validity showed that a significant proportion of the variance in CREDI scores could be explained by child gender and family characteristics, most importantly caregiver-reported cognitive stimulation in the home (p<0.0001). Regarding concurrent validity, scores on the CREDI were significantly correlated with overall PRIDI scores within the in-person sample at r=0.46 (p<0.001).; The results suggested that the CREDI short form is a valid, reliable, and acceptable measure of early childhood development for children under the age of 3 years in Brazil

On the Fibonacci universality classes in nonlinear fluctuating hydrodynamics

We present a lattice gas model that without fine tuning of parameters is expected to exhibit the so far elusive modified Kardar-Parisi-Zhang (KPZ) universality class. To this end, we review briefly how non-linear fluctuating hydrodynamics in one dimension predicts that all dynamical universality classes in its range of applicability belong to an infinite discrete family which we call Fibonacci family since their dynamical exponents are the Kepler ratios $z_i = F_{i+1}/F_{i}$ of neighbouring Fibonacci numbers $F_i$, including diffusion ($z_2=2$), KPZ ($z_3=3/2$), and the limiting ratio which is the golden mean $z_\infty=(1+\sqrt{5})/2$. Then we revisit the case of two conservation laws to which the modified KPZ model belongs. We also derive criteria on the macroscopic currents to lead to other non-KPZ universality classes.Comment: 17 page

Extension of the core map of common bean with EST-SSR, RGA, AFLP, and putative functional markers

Microsatellites and gene-derived markers are still underrepresented in the core molecular linkage map of common bean compared to other types of markers. In order to increase the density of the core map, a set of new markers were developed and mapped onto the RIL population derived from the ‘BAT93’ × ‘Jalo EEP558’ cross. The EST-SSR markers were first characterized using a set of 24 bean inbred lines. On average, the polymorphism information content was 0.40 and the mean number of alleles per locus was 2.7. In addition, AFLP and RGA markers based on the NBS-profiling method were developed and a subset of the mapped RGA was sequenced. With the integration of 282 new markers into the common bean core map, we were able to place markers with putative known function in some existing gaps including regions with QTL for resistance to anthracnose and rust. The distribution of the markers over 11 linkage groups is discussed and a newer version of the common bean core linkage map is proposed

Synthesis of a square-planar rhodium alkylidene N-heterocyclic carbene complex and its reactivity toward alkenes

The first rhodium alkylidene square-planar complex stabilized by an N-heterocyclic carbene ligand, RhCl(-CHPh)(IPr)PPh3 (2; IPr = 1,3-bis(2,6-diisopropylphenyl)imidazol-2-carbene), has been prepared by reaction of RhCl(IPr)(PPh3)2 (1) with phenyldiazomethane and its dynamic behavior in solution studied. Treatment of 2 with alkenes results in the formation of the ¿2-olefin complexes RhCl(¿2-CH2-CHR)(IPr)PPh3 (3, R = H; 4, R = Ph; 5, R = OEt) and new olefins arising from the coupling of the alkylidene with the alkenes, likely via a metallacyclobutane intermediate

Microsatellite diversity and genetic structure among common bean (Phaseolus vulgaris L.) landraces in Brazil, a secondary center of diversity

Brazil is the largest producer and consumer of common bean (Phaseolus vulgaris L.), which is the most important source of human dietary protein in that country. This study assessed the genetic diversity and the structure of a sample of 279 geo-referenced common bean landraces from Brazil, using molecular markers. Sixty-seven microsatellite markers spread over the 11 linkage groups of the common bean genome, as well as Phaseolin, PvTFL1y, APA and four SCAR markers were used. As expected, the sample showed lower genetic diversity compared to the diversity in the primary center of diversification. Andean and Mesoamerican gene pools were both present but the latter gene pool was four times more frequent than the former. The two gene pools could be clearly distinguished; limited admixture was observed between these groups. The Mesoamerican group consisted of two sub-populations, with a high level of admixture between them leading to a large proportion of stabilized hybrids not observed in the centers of domestication. Thus, Brazil can be considered a secondary center of diversification of common bean. A high degree of genome-wide multilocus associations even among unlinked loci was observed, confirming the high level of structure in the sample and suggesting that association mapping should be conducted in separate Andean and Mesoamerican Brazilian samples