Patterns of anxiety symptoms in toddlers and preschool-age children: Evidence of early differentiation

The degree to which young children’s anxiety symptoms differentiate according to diagnostic groupings is under-studied, especially in children below the age of 4 years. Theoretical (confirmatory factor analysis, CFA) and statistical (exploratory factor analysis, EFA) analytical methods were employed to test the hypothesis that anxiety symptoms among 2–3-year-old children from a non-clinical, representative sample would differentiate in a manner consistent with current diagnostic nosology. Anxiety symptom items were selected from two norm-referenced parent-report scales of child behavior. CFA and EFA results suggested that anxiety symptoms aggregate in a manner consistent with generalized anxiety, obsessive–compulsive symptoms, separation anxiety, and social phobia. Multi-dimensional models achieved good model fit and fit the data significantly better than undifferentiated models. Results from EFA and CFA methods were predominantly consistent and supported the grouping of early childhood anxiety symptoms into differentiated, diagnostic-specific categories

Cartilha - palestra sobre ferrugem asiática da soja.

Esta palestra trata de aspectos da ferrugem asiática da soja: uma doença recente no Brasil e com alto potencial de dano.bitstream/item/56144/1/ID-26146.pd

Density and morphology: from the building scale to the city scale

The density of the domestic building stock of London is explored, moving from the scale of individual house and blocks of flats, through larger geographical units, to complete boroughs. The description of the stock is highly detailed and is made using the 3DStock method, which derives building geometry from digital maps and LiDAR (laser measurements from overflying aircraft). This means that accurate estimates of floor areas can be made and used to measure densities as Floor Space Index (FSI) values. Ground coverage or Ground Space Index (GSI) values are calculated from building footprints and land boundaries. The Spacemate tool, devised by Berghauser Pont and Haupt, is used to plot the types and ages of dwellings in terms of FSI, GSI and numbers of storeys. Figures for actual annual gas and electricity consumption are attached to each dwelling. Analysis shows that, in general, energy-use intensities—and especially the intensity of gas use for heating—decrease with increasing density, and with the transition between house types, from detached, to semi-detached, to terraces, to (low-rise) flats

Avaliação de regimes de temperatura no desenvolvimento da ferrugem-asiática da soja.

Com o objetivo de avaliar o impacto de cinco regimes de temperatura (28oC/ 20oC, 30oC/ 22oC, 32oC/ 24oC, 34oC/ 26oC e 36oC/ 28oC) no desenvolvimento da ferrugem-asiática da soja foram realizados ensaios em condições controladas. Plantas da cultivar CD 219 RR com a quarta folha expandida foram inoculadas com esporos do fungo Phakopsora pachyrhizi e mantidas nos diferentes regimes de temperatura. A severidade da ferrugem foi avaliada aos 16 dias após a inoculação. O regime de temperatura mais favorável para o desenvolvimento da ferrugem foi 28oC/ 20oC (média 24oC). A doença não se desenvolveu nos regimes de temperatura de 34oC/ 26oC e 36oC/ 28oC, com médias 30oC e 32oC, respectivamente

Window operation behaviour and indoor air quality during lockdown: A monitoring-based simulation-assisted study in London

The Covid-19 outbreak has resulted in new patterns of home occupancy, the implications of which for indoor air quality (IAQ) and energy use are not well-known. In this context, the present study investigates 8 flats in London to uncover if during a lockdown, (a) IAQ in the monitored flats deteriorated, (b) the patterns of window operation by occupants changed, and (c) more effective ventilation patterns could enhance IAQ without significant increases in heating energy demand. To this end, one-year’s worth of monitored data on indoor and outdoor environment along with occupant use of windows has been used to analyse the impact of lockdown on IAQ and infer probabilistic models of window operation behaviour. Moreover, using on-site CO2 data, monitored occupancy and operation of windows, the team has calibrated a thermal performance model of one of the flats to investigate the implications of alternative ventilation strategies. The results suggest that despite the extended occupancy during lockdown, occupants relied less on natural ventilation, which led to an increase of median CO2 concentration by up to 300 ppm. However, simple natural ventilation patterns or use of mechanical ventilation with heat recovery proves to be very effective to maintain acceptable IAQ

Geleia de abacaxi: influência do tipo de pectina nas alterações físico-químicas durante o armazenamento.

O abacaxi é uma das frutas tropicais mais populares por seu aroma e sabor agradável, que se deve, principalmente, à presença de sacarose, ácido cítrico e málico (THÉ, 2007). Seu acentuado teor de ácido, ressalta suas características sensoriais desejáveis e o torna adequado à fabricação de geleias (SILVA, 2006). A geleia é o produto obtido pela cocção das frutas inteiras ou em pedaços, da polpa ou do suco de fruta, adicionados de açúcar e água e concentrados até consistência gelatinosa. De maneira geral, a geleia é considerada uma rede tridimensional sólida que envolve a pectina, o açúcar e o ácido, retendo uma fase líquida em sua estrutura (MULTON, 2000). A liberação da fase líquida das geleias, conhecida como sinérese, é um dos principais problemas que ocorre durante o armazenamento do produto, que contribui para depreciar sua aparência (Figura 1). Fatores como pré-gelatinização antes e durante o envase, valores de pH inferiores ao ideal, diferencial de sólidos entre a fruta e o gel e deficiência na hidratação da pectina contribuem para a formação da sinérese. (MAIA, 1997; JOHNSON, 2001).bitstream/item/32571/1/comunicado-143ID27622.pdfTambém disponível em: