Objective: There is little evidence of how fruit and vegetable (FV) household food availability changes over a one-month period among low-income households. The objective of this study was to analyze how FV variety and sustainability changes over a 4-week period. Design: Inventories were conducted in low-income family households (n=49) once a week over a 4-week period. Trained researchers gathered the weights of all FV, including legumes, within the home. Previously determined mean container weights were subtracted to obtain the estimated weight of the FV. All weights were then converted to edible cups of FV, taking into account the weight that is removed when stems, peels, skins, and canning liquid are removed. Analysis: Variety was measured by analyzing the number of kinds of FV within the USDA subgroups (100% fruit juice, citrus fruits, other fruits, dark green vegetables, orange vegetables, dry beans and peas, starchy vegetables, and other vegetables) found in the home. In addition, sustainability was analyzed by the number of days into the future at which households can meet 100% of the FV recommendations. Data were combined for all households, according to the time points with the most amount of FV (HFV), the second-most amount of FV, the third-most amount of FV, and the least amount of FV (LFV) available in the household. Results: Vegetables, specifically canned vegetables, comprised the majority of all measurements taken throughout all inventories. When combined, the kinds of total FV decreased significantly from 25±1.1 kinds on HFV to 21.2±1.1 kinds on LFV (p<.0001). Days into the future at 100% of the fruit recommendation fell significantly from 11.4±0.1 days on HFV to 7.1±0.1 days on LFV (p<.0001). Total vegetables decreased significantly from 25.3±0.1 days on HFV to 19.1±0.1 days on LFV (p<.0001). Even at the peak of FV availability, dark green vegetables remained the lowest subgroup at 2.17±0.1 days and decreased to 1.6±0.1 days at LFV (p=0.01). Conclusions and Implications: Low-income households have greater variety of FV during the times when they have the most food resources compared to when they have the least food resources. The days into the future that the household FV supply could be maintained at 100% of the USDA's subgroup recommendation varies widely between subgroups, from about two days up to more than one month. Further research is needed to determine how to maintain subgroup variety and constancy of a FV supply throughout the month for low-income FV.

Os eucaliptos por serem de rápido crescimento, grande abundância de madeira, facilidade e baixo custo na exploração, madeira relativamente homogênea, proximidade do mercado consumidor e barata, é um gênero que deve ser mais utilizado em serrarias no Brasil. O Eucalyptus urophylla é uma espécie de alto potencial para as zonas tropicais úmidas por ser tolerante ao cancro do eucalipto (Cryphonectria cubensis) e sua grande plasticidade de adaptação e de utilização para os mais diversos fins. Por isto, é uma das espécies mais plantadas no Brasil e com grande potencial para ser utilizada em serraria. O objetivo deste trabalho foi estudar as características botânicas, silviculturais e as propriedades físicas e mecânicas da madeira de procedências/progênies de Eucalyptus urophylla da ilha Flores com 19 anos de idade. Foram selecionadas 6 arvores de 20 progênies, totalizando 120 árvores. Com base nos resultados conclui-se que não houve diferença estatística entre as procedências ou progênies para a produtividade (DAP, altura e volume cilíndrico das árvores). Houve diferença estatística entre as características das folhas e dos frutos, mas as amplitudes de variação apresentaram-se dentro dos limites definidos para a espécie. Não houve diferença estatística entre as progênies para as propriedades físicas e mecânicas, exceto para a retratibilidade volumétrica. Os resultados apresentados permitiram classificar a espécie como de alta resistência mecânica, exceto para a compressão que foi de média resistência, alta retratibilidade e moderadamente pesada. Houve boa correlação entre a densidade básica, que é de fácil determinação, com as propriedades mecânicas da madeira, desta forma concluiu-se que é possível prever a resistência à flexão estática através da densidade básica. Não houve correlação das rachaduras de extremidades de tora com as rachaduras de extremidades de peça serrada. Não houve correlação da tensão de crescimento longitudinal com o diâmetro. A conicidade não influenciou no rendimento em madeira serrada. O rendimento em madeira serrada médio foi de 42,54%. / The eucalypts is a gender that should be more used at sawmills in Brazil, due to its fast growth, great wooden abundance, easiness and low cost in the exploration, wood relatively homogeneous, proximity to the consumer market and cheap price. The Eucalyptus urophylla is a species of high potential for the humid tropical zones, because of its tolerance to the eucalypts canker (Cryphonectria cubensis) and due to its great plasticity of adaptation for the most diverse uses. It is one of the most planted species in Brazil, with great potential to be used in sawmill. The objective of this work is to study the botanical and silvicultural features, and the physical and mechanical properties of the wood of provenances/progenies of Eucalyptus urophylla from the Flores island with 19 years of age. Six trees of 20 progenies had been selected, totaling 120 trees. There was not statistical differences among the origins or progenies for the productivity (DBH, height and cylindrical volume of the trees). It had statistic difference between progenies for the morphological features, like the leaves and the fruits, but the amplitude of variation presented was inside the limits defined for the species. About the study of the physical and mechanical properties, there was no statistic differences among the progenies, except for the volumetric shrinkage. The progenies were classified like the high mechanical resistance, except for the compression, that was of average resistance, high shrinkage and moderately weighed. There was good correlation between the basic density, that is easy to determination, and the mechanical properties of the wood, what allow to conclude that it is possible to predict the resistance to static flexion through the basic density. There was no correlation between end splitting log with end splitting board. There also were no correlations between the growth tensions and the diameter of the logs. The taper didn't influence the income in sawed wood. The medium income in sawed wood was of 42,5%.

Os eucaliptos por serem de rápido crescimento, grande abundância de madeira, facilidade e baixo custo na exploração, madeira relativamente homogênea, proximidade do mercado consumidor e barata, é um gênero que deve ser mais utilizado em serrarias no Brasil. O Eucalyptus urophylla é uma espécie de alto potencial para as zonas tropicais úmidas por ser tolerante ao cancro do eucalipto (Cryphonectria cubensis) e sua grande plasticidade de adaptação e de utilização para os mais diversos fins. Por isto, é uma das espécies mais plantadas no Brasil e com grande potencial para ser utilizada em serraria. O objetivo deste trabalho foi estudar as características botânicas, silviculturais e as propriedades físicas e mecânicas da madeira de procedências/progênies de Eucalyptus urophylla da ilha Flores com 19 anos de idade. Foram selecionadas 6 arvores de 20 progênies, totalizando 120 árvores. Com base nos resultados conclui-se que não houve diferença estatística entre as procedências ou progênies para a produtividade (DAP, altura e volume cilíndrico das árvores). Houve diferença estatística entre as características das folhas e dos frutos, mas as amplitudes de variação apresentaram-se dentro dos limites definidos para a espécie. Não houve diferença estatística entre as progênies para as propriedades físicas e mecânicas, exceto para a retratibilidade volumétrica. Os resultados apresentados permitiram classificar a espécie como de alta resistência mecânica, exceto para a compressão que foi de média resistência, alta retratibilidade e moderadamente pesada. Houve boa correlação entre a densidade básica, que é de fácil determinação, com as propriedades mecânicas da madeira, desta forma concluiu-se que é possível prever a resistência à flexão estática através da densidade básica. Não houve correlação das rachaduras de extremidades de tora com as rachaduras de extremidades de peça serrada. Não houve correlação da tensão de crescimento longitudinal com o diâmetro. A conicidade não influenciou no rendimento em madeira serrada. O rendimento em madeira serrada médio foi de 42,54%. / The eucalypts is a gender that should be more used at sawmills in Brazil, due to its fast growth, great wooden abundance, easiness and low cost in the exploration, wood relatively homogeneous, proximity to the consumer market and cheap price. The Eucalyptus urophylla is a species of high potential for the humid tropical zones, because of its tolerance to the eucalypts canker (Cryphonectria cubensis) and due to its great plasticity of adaptation for the most diverse uses. It is one of the most planted species in Brazil, with great potential to be used in sawmill. The objective of this work is to study the botanical and silvicultural features, and the physical and mechanical properties of the wood of provenances/progenies of Eucalyptus urophylla from the Flores island with 19 years of age. Six trees of 20 progenies had been selected, totaling 120 trees. There was not statistical differences among the origins or progenies for the productivity (DBH, height and cylindrical volume of the trees). It had statistic difference between progenies for the morphological features, like the leaves and the fruits, but the amplitude of variation presented was inside the limits defined for the species. About the study of the physical and mechanical properties, there was no statistic differences among the progenies, except for the volumetric shrinkage. The progenies were classified like the high mechanical resistance, except for the compression, that was of average resistance, high shrinkage and moderately weighed. There was good correlation between the basic density, that is easy to determination, and the mechanical properties of the wood, what allow to conclude that it is possible to predict the resistance to static flexion through the basic density. There was no correlation between end splitting log with end splitting board. There also were no correlations between the growth tensions and the diameter of the logs. The taper didn't influence the income in sawed wood. The medium income in sawed wood was of 42,5%.