Search results for "ECOLOGIA"
showing 10 items of 1399 documents
Editorial: Minimally invasive surgery as a mean of improving fertility: What do we know so far?
2023
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Intrahepatic cholestasis of pregnancy after ovarian hyperstimulation syndrome with wild-type ABCB4 gene: a peculiar case and literature review
2023
Background: Intrahepatic cholestasis of pregnancy (ICP) in the first trimester occurring after ovarian hyperstimulation syndrome (OHSS) is a rare condition and few cases are reported in the literature. Hyperestrogenism may explain this problem in genetically predisposed women. The objective of this article is to report one of these rare cases and offer an overview of the other published cases. Case presentation: We report a case of severe OHSS followed by ICP in the first trimester. The patient was admitted to the intensive care unit and was treated according to the guidelines for the management of OHSS. Moreover, the patient also received ursodeoxycholic acid for ICP, which brought to an i…
Fitoestrogeni ed osteoporosi postmenopausale: review della letteratura.
2004
In-Gel Assay to Evaluate Antioxidant Enzyme Response to Silver Nitrate and Silver Nanoparticles in Marine Bivalve Tissues
2022
Silver is back in vogue today as this metal is used in the form of nanomaterials in numerous commercial products. We have developed in-gel electrophoretic techniques to measure the activity of the antioxidant enzymes catalase (CAT), superoxide dismutase (SOD), and glutathione peroxidase (GPX), and used the same techniques in combination with HSP70 Western blot analysis to evaluate the effects of nanomolar amounts of silver nitrate and 5 nm alkane-coated silver nanoparticles in tissues of the marine bivalve Mytilus galloprovincialis (Lam.) exposed for 28 days in mesocosms. Our results showed a negligible effect for nanosilver exposure and dose-dependent effects for the nitrate form.
Caratterizzazione micropaleontologica a foraminiferi delle Unità litologiche argillose affioranti nella Sicilia centro-occidentale e meridionale
2011
Development of a Model to Estimate the Risk of Emission of Greenhouse Gases from Forest Fires
2022
27 Pág.
El papel que desempeñan las teorías en la Biología
2006
Resumen basado en el de la publicación Resumen en inglés Se trata de enfatizar la importancia del término interpretación de la teoría y su uso indebido en la educación científica. También se discute la conveniencia de enseñar biología como una ciencia hipotético-deductiva, y el papel que el mapeo conceptual juega en estos elementos. ESP
The Monte San Nicola section (Sicily) revisited: A potential unit-stratotype of the Gelasian Stage
2022
The Monte San Nicola area (Southern Sicily) offers a spectacular exposure of open-marine sediments that were employed in 1998 for defining the Global Stratotype Section and Point (GSSP) of the Gelasian Stage (Upper Pliocene). After the lowering of the Pliocene/Pleistocene boundary to ca. 2.6 Ma in 2010, the Gelasian GSSP has been redefined as the base of both the Pleistocene Series and the Quaternary Period, which increased its importance and visibility within the scientific community. However, documentation on the Monte San Nicola reference section is still sparse. In the light of its renewed status, we decided to undertake a complete revision of the Gelasian Stage in its type area, in ord…
Structural changes in Italian Late Pliocene - Pleistocene large Mammal assemblages
2001
A schematic range-chart of the late Pliocene - Pleistocene large mammal genera is presented. The main faunal events recognizable within this time span are discussed. The first faunal event occurs around the Gauss/Matuyama transition with the beginning of the middle Villafranchian characterized by the arrival of Mammuthus (Archidiskodon) and Equus (the so-called "elephant-Equus event"). The following faunal event occurs at the Plio-Pleistocene transition (the so-called "wolf event"). The latter is marked by a strong contraction in the diversity of the ruminants and by a renewal in the carnivore diversity with the arrival of social carnivores. The low diversity in ruminant assemblage persist …