2,748 research outputs found

    BECKER, Christian U. Sustainability Ethics and Sustainability Research.

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    BECKER, Christian U. Sustainability Ethics and Sustainability Research. New York: Springer. 2012. 139 p

    Comportamento da Temperatura do Lixo em duas Épocas Distintas (seca e chuvosa) no Lixão da Cidade de Maceió, AL

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    Maceió city, due to the inexistence of industry pollutants, detainsits landfill, located in Cruz das Almas neighborhood (LAT 09º 33’ S; LON35º 46’ W) as one of the main atmospheric pollutants source emission.There are two great reasons to the inhabitant claims that live near the landfill.The leached ashes resulted from the waste combustion, mainly during thedry period in the region (October, November, December and January),and the gas emission produced by the waste bacteria and chemical activity,that occurs during all the year, being most noted by the surroundingpopulation in the rainy period. (April, May, June and July). The main aimof this paper is to analyzer the waste temperature profile, in twoclimatologically distinct period (dry and wet seasons) in the landfill. To doit, three field experiments were carried out with an automatic weather stationinstallation (EMA), to solar global radiation, precipitation and wastetemperature soil profile in four different levels (5, 25, 50 and 100 cm) beingtwo fields campaigns in the dry season and another in wet period. Couldnote that the waste temperature (TL) varies according to the season,emphasizing the dry period, where the waste temperature is highest in thelevel near surface, while in the wet period occurs the opposite. Was notedthat the precipitation substandard the waste temperature profile.A cidade de Maceió, devido à quase não existência de indústriaspoluidoras, possui seu Lixão, localizado no bairro de Cruz das Almas (LAT09° 33’ S; LON 35° 46’ W) como uma das principais fontes de emissão depoluentes atmosféricos. São dois os principais motivos de reclamação porparte dos moradores do seu entorno: as cinzas resultantes da combustãoespontânea do lixo, principalmente durante o período seco da região (outubro,novembro, dezembro e janeiro) e a emissão de gases produzidospelas atividades química e bacteriana do lixo que ocorre essencialmentedurante o ano todo, sendo mais percebido pela população circunvizinha noperíodo chuvoso (abril, maio, junho e julho). O objetivo principal destetrabalho é analisar o perfil da temperatura do lixo em duas épocasclimatologicamente distintas (seca e chuvosa) no lixão. Para isso foram realizadostrês experimentos de campo com a instalação de uma EstaçãoMeteorológica Automática (EMA) para medições da radiação solar global,precipitação e perfil da temperatura do lixo em quatro níveis (5, 25, 50 e100 cm), sendo duas dentro do período seco e uma no período chuvoso daregião. Verificou-se que a Temperatura do lixo (TL) variou profundamentede acordo com a época do ano com ênfase para o período seco, onde astemperaturas do lixo são maiores nas camadas superficiais, enquanto queno período chuvoso ocorre o inverso. Também foi constatado que a precipitação despadroniza o ciclo da temperatura do lixo

    Diaspores biometry, temperatures and light regime on seed germination of Ptychosperma macarthurii (Arecaceae)

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    This work aimed to analyze diaspores biometric characteristics, the effect of different temperatures and light regimes on seed germination and on the initial seedlings’ growth of Ptychosperma macarthurii. The experiment was performed at the Horticulture Seed Laboratory, UNESP/FCAV, Jaboticabal, SP. The individual diaspores biometric analysis was performed by measuring the length, diameter, mass and weight of a thousand diaspores, the data were subjected to descriptive statistical analysis. It was adopted a completely randomized design in a 5 × 2 factorial with four replications of 25 seeds per treatment. Five temperatures (25; 30; 35; 20-30 and 25-35 ºC) and two light regimes (presence and total absence of light) were evaluated. The variables analyzed were germination, germination speed index, average length of the primary root and shoot, diameter of the stem and seedlings total dry mass. The length, diameter and average weight of the diaspores were 12.54 mm, 6.05 mm and 0.1610 g, respectively. The seeds of Ptychosperma macarthurii germinated in a wide temperature range, reaching a higher germination percentage at 25 ºC and a higher germination speed index at 30 ºC, being classified as neutral photoblastics. The constant temperature of 30 ºC provided higher mean values ​​for all seedlings’ biometric characteristics.This work aimed to analyze diaspores biometric characteristics, the effect of different temperatures and light regimes on seed germination and on the initial seedlings’ growth of Ptychosperma macarthurii. The experiment was performed at the Horticulture Seed Laboratory, UNESP/FCAV, Jaboticabal, SP. The individual diaspores biometric analysis was performed by measuring the length, diameter, mass and weight of a thousand diaspores, the data were subjected to descriptive statistical analysis. It was adopted a completely randomized design in a 5 × 2 factorial with four replications of 25 seeds per treatment. Five temperatures (25; 30; 35; 20-30 and 25-35 ºC) and two light regimes (presence and total absence of light) were evaluated. The variables analyzed were germination, germination speed index, average length of the primary root and shoot, diameter of the stem and seedlings total dry mass. The length, diameter and average weight of the diaspores were 12.54 mm, 6.05 mm and 0.1610 g, respectively. The seeds of Ptychosperma macarthurii germinated in a wide temperature range, reaching a higher germination percentage at 25 ºC and a higher germination speed index at 30 ºC, being classified as neutral photoblastics. The constant temperature of 30 ºC provided higher mean values ​​for all seedlings’ biometric characteristics

    Primeiras evidências de validade da versão reduzida da Escala Toronto de Alexitimia (BbTAS-12) através da Modelagem de Equação Estrutural Exploratória com uma amostra de adolescentes brasileiros

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    Introduction: Alexithymia is a construct characterized by a subclinical inability to identify and describe emotions and an externally-oriented thinking.Objective: To test the three-dimensional theoretical model proposed by Parker et al. (1994) (DDF, DIF, EOT), when evaluated by a brief version of the Toronto Alexithymia Scale (BbTAS-12).Method: BbTAS-12 was used in a sample of 801 adolescents (from 13 to 19 years of age), of both genders (52.1% male), in order to test its first evidences of validity via Exploratory Structural Equation (ESEM) Modeling and the internal consistency index. Results: The results of the general model (GFI = .99; AGFI = .97; χ2 / gl = 1,14; RMSEA = .035; PCLOSE > .5; CFI = .98; TLI = .97), are excellent and explain 51% of the construct variance, confirming also the three dimension-structure. Both the internal consistency of the total (αt = .72; Omegat = .69) and the theoretically proposed dimensions (αDDF = .67; OmegaDDF = .68; αDIF = .73; OmegaDIF = .73; αEOT = 0,56; OmegaEOT = .57) showed results varying from acceptable to adequate. The internal consistency of the full scale (BbTAS-12) is adequate, with the exception of the EOT dimension. The results are discussed considering the studies conducted with this population in several countries.Conclusion: BbTAS-12 is an especially promising scale for the measure Alexithymia in Brazilian adolescents. However, it is possible to improve the content of some items considering the reading skills and the cultural context of adolescents.Introdução: Alexithymia é um construto de personalidade caracterizado pela incapacidade subclínica de identificar e descrever emoções e um pensamento orientado para o exterior.Objetivo: testar o modelo teórico tridimensional proposto por Parker et al. (1994) (DDF, DIF, EOT), quando avaliado pela versão reduzida da Escala Toronto de Alexitimia (BbTAS-12).Método: a BbTAS-20 foi aplicada em uma amostra de 801 adolescentes (de 13 a 19 anos), de ambos os sexos (52,1% masculino) a qual serviu para se testar suas primeiras evidências de validade, através da Modelagem de Equação Estrutural Exploratória (ESEM) e da consistência interna.Resultados: os resultados do modelo geral (GFI = .99; AGFI = .97; χ2 / gl = 1,14; RMSEA = .035; PCLOSE > .5; CFI = .98; TLI = .97), o qual explica cerca de 51% da variância do construto, confirmam a estrutura testada em três dimensões. Tanto a consistência interna da escala total (αt = .72; Ômegat = .69) quanto as dimensões teoricamente propostas (αDDF = .67; ÔmegaDDF = .68; αDIF = .73; ÔmegaDIF = .73; αEOT = 0,56; ÔmegaEOT = .57) obtiveram resultados variando de aceitáveis à adequados. A consistência interna da escala total (BbTAS-12) mostra-se adequada, com exceção da dimensão EOT. Os resultados são discutidos considerando os estudos realizados com esta população em vários países.Conclusão: A BbTAS-12 é uma escala especialmente promissora para a medida da Alexitimia em adolescentes. No entanto, é possível melhorar o conteúdo de alguns itens considerando as habilidades de leitura e o contexto cultural dos adolescentes
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