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Lopez M.B.,Autonomous University of Entre Rios
Health and Addictions / Salud y Drogas | Year: 2013

Drinking alcohol during pregnancy can lead to different problems with different levels of severity, encompassed by the term Fetal Alcohol Spectrum Disorders. Considering that a safe dose of alcohol during pregnancy has not been determined, the official recommendation of various national and international organizations is abstinence. However, the evidence indicates that although many women are aware that alcohol can alter fetal development, most of them believe that some consumption during pregnancy is acceptable. Through this study, we intend to contribute to the understanding of the relationship between knowledge, attitudes and drinking during pregnancy. To achieve this, we analyze semi structured interviews carried on with puerperal women in Argentina (n = 641). 70.4% of women reported having received some information about a potential adverse effect of alcohol consumption during pregnancy, but few of them had accurate information and only 6.1% mentioned a health professional as source. Information and attitudes were strongly linked. Attitudes were significantly associated to some alcohol consumption during pregnancy and to binge drinking during that period. © Health and Addictions 2013. Source

Dalmazzo M.,CONICET | Vossler F.G.,Autonomous University of Entre Rios
Apidologie | Year: 2015

Most studies on bee pollen diet are based on the abundance of each pollen type composing honey or pollen stores of whole nests (pollen counts). In an effort to characterize the diet of the augochlorine bee Augochlora amphitrite, we employed nest and intra-nest pollen analyses and bee flower visitation. In addition, we tested a novel approach, the index of relative importance (IRI), a method that combines pollen counts, pollen volume, and frequency of pollen occurrence. Using nest pollen analysis, we found that the Ludwigia type dominated pollen counts, comprising 56 % of whole nests, and thus would have concluded that this is the only most important pollen source in the diet. Instead, we found seven other important sources including Ipomoea alba, Ipomoea cairica, Gymnocoronis spilanthoides, and Pavonia types as well as 26 new floral hosts using all four methods in combination. Thus, we recommend that other studies of bee diet include these other approaches when possible and, especially, the novel approach of IRI. © 2014, INRA, DIB and Springer-Verlag France. Source

Fagundez G.,Autonomous University of Entre Rios
Palynology | Year: 2015

Seventy-five samples of honey produced by honeybees from the Department Diamante (Entre Rios, Argentina) were analysed for pollen content. One hundred and forty-two morphological types were identified, belonging to 62 botanical families. Unifloral honeys were predominant (59%). The main type of honey produced was from Glycine max (21%), Lotus corniculatus (15%), ‘clovers’ (11%), Ammi spp. (5%), Melilotus albus, Salix humboldtiana (3%) and Medicago sativa (1%). By means of quantitative analysis, 85% of the honeys were classified as Classes I and II. Foraging behaviour and pollen diversity were analysed in honey samples. Geographical markers are proposed for these honeys. The expected differentiation of samples attributable to sub-environments and harvest dates is discussed. © 2015 AASP – The Palynological Society Source

This paper describes the phytolith assemblages recovered in the San Salvador Formation (Pliocene−Lower Pleistocene), East of the Entre Rios province, Argentina. The methodological procedures were based applications of regional geology, geomorphology, stratigraphy and sedimentology principles and techniques, which consist primarily a task field and laboratory. The silica microremains were extracted using standard protocol for sediment samples, but adapted for fluvial sediments. Sedimentary strata were conglomerates mainly of gravels matrix supported and sands of grain size different, with internal and surface structures. The clays fraction was represented by major clay strata. The phytoliths were observed in sand layers of fine texture and mud. In the gravel strata, absence and / or shortage of phytoliths were recorded. Elongated, polyhedral and fan shaped phytoliths were abundant. Smaller phytoliths as globular, bilobate, truncated cones are oblong and crenate were present in both profiles. Collapsed saddles of bambusoideas affinity were very frequent in the Concordia profile samples. The phytolith assemblages study, represent the first fossil record of this sedimentological unit, integrated by Arecaceae, Poaceae (Bambusoideae, Panicoideae, Chloridoideae and Danthonioideae) and Podostemaceae families. These assemblages were originated by humid forest, palm and riparian forests paleocommunities and indicate humid tropical-subtropical climate with high water availability. © 2015, Asociacion Geologica Argentina. All rights reserved. Source

Marchetti Z.Y.,Research Center Cientifica y Transferencia | Acenolaza P.G.,Research Center Cientifica y Transferencia | Acenolaza P.G.,Autonomous University of Entre Rios
Iheringia - Serie Botanica | Year: 2011

Vegetation associated to the Paraná River is subject to conditions imposed by the pulse regime. This study aimed to evaluate the pulse regime influence on the vegetation of the Paraná River islands. Using multivariate techniques for classification and ordination, six communities were identified and described: willow forests of marginal levees, riverine forest of internal levees, floating meadows, floating rooted plants, a tall grass herbaceous community and a marshy community. The forests were the most diverse and the richest communities while the floating meadows and the marshy community were less rich and diverse. Our results indicate that duration and recurrence of floods are important variables in determining the characteristics of the vegetation. However, forests with a similar flood recurrence and duration showed important differences in physiognomy, structure and floristic composition. The differences between the forests could be explained by the connectivity degree, geomorphological dynamics and succession time. Source

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