Search results for "Gare"
showing 10 items of 304 documents
Cigarette Smoke Extract Induces p38 MAPK-Initiated, Fas-Mediated Eryptosis
2022
Eryptosis is a physiological mechanism for the clearance of senescent or damaged erythrocytes by phagocytes. Excessive eryptosis is stimulated under several pathologies and associated with endothelial injury and thrombosis. Cigarette smoke (CS) is an established risk factor for vascular diseases and cigarette smokers have high-levels of eryptotic erythrocytes. This study, for the first time, investigates the mechanism by which CS damages red blood cells (RBCs). CS extract (CSE) from commercial cigarettes was prepared and standardized for nicotine content. Cytofluorimetric analysis demonstrated that treatment of human RBCs with CSE caused dose-dependent, phosphatidylserine externalization an…
Cell Cycle in Potentially Dedifferentiating Cereal Mesophyll Protoplasts Cultured in vitro. I. Abnormalities in Cycle Kinetics
1993
Summary Protoplasts isolated from immature and mature mesophyll of wheat and oats were cultured in vitro . The potential progression from G1 (G0) to G2, through mitosis and cytokinesis was analysed. The degree and speed of progression through the cell cycle depended on the species and the state of maturity of the tissue from which the protoplasts were derived. In all the protoplast populations that were tested at least initiation of DNA synthesis was detected by labelling nuclei with the thymidine-analogue, bromodeoxyuridine (BrdU). Protoplasts derived from mature leaf tissue of wheat appeared to be recalcitrant to reach G2. Wheat protoplasts derived from immature leaf tissue appeared to pr…
Changes in tubulin protein expression accompany reorganization of microtubular arrays during cell shaping in barley leaves
1998
Barley (Hordeum vulgare L.) leaves grow from the base and thus exhibit a smooth developmental gradient. Developing mesophyll cells acquire their typical lobed shape synchronously along this gradient. Successive changes in the patterns of cortical microtubules are involved in the shaping process. The changes include formation and dispersal of band-like structures, the establishment of a random network and a dramatic loss of microtubules after completion of cell shaping. When the relative tubulin contents were determined in consecutive segments taken along the leaf, two tubulin maxima were found. They coincided with the establishment of the microtubular bands and the random network, respectiv…
Reviewing the identity of the Maltese Polypodium (Polypodiaceae) – new evidence from morphology and flow cytometry
2020
The first record of Polypodium from Gozo (Maltese Islands) was described as a new endemic taxon, Polypodium vulgare subsp. melitense, based on its unique set of morphological characters. It was treated as a novelty and designated as a subspecies of P. vulgare mainly due to the lack of paraphyses, the presence of 10–16 annular cells, and a mean spore length of 64 μm. The fern was reassessed by us employing a more rigid morphological analysis and the application of flow cytometry. The absence of paraphyses was confirmed, but the number of annular cells (5–11) and the spore length (70–79 μm) differed from the previous study. These and other morphological traits, the phenology (leaf-shedding in…
Preliminary results about the breath of passive smokers and vapers based on the use of portable air monitoring devices
2016
Abstract Preliminary studies were made on the effect of both, classical smoking and electronic cigarettes (ECs) vaping, based on the quality of the indoor air and the breath of passive smokers. Portable air monitoring devices were used to evaluate carbon monoxide (CO), carbon dioxide (CO2), particulate materials (PM), formaldehyde and volatile organic compounds (VOCs) in indoor air and breath of active and passive smokers and vapers. As preliminary results, it can be observed that the major part of PMs liberated in classical smoking and ECs vaping correspond to the lowest size, which is the most dangerous for human health. However, the number of smallest PMs formed during vaping is around 5…
Chemical Composition and Antimicrobial Activity of the Essential Oils from Three Chemotypes of Origanum vulgare L. ssp. hirtum (Link) Ietswaart Growi…
2009
Essential oils obtained from inflorescences of three Origanum vulgare L.ssp. hirtum (Link) Ietswaart samples, growing wild in different locations in Campania (Southern Italy), were analysed. Three chemotypes were found: the first, with a prevalence of carvacrol/thymol; the second, characterized by the prevalence of thymol/alpha-terpineol; the third, featuring a prevalence of linalyl acetate and linalool. This chemical study attempts to provide a contribution in shedding light on the relationship between chemical composition and biotypes and/or chemotypes in Origanum vulgare ssp. hirtum. The essential oils were also evaluated for their antibacterial activity against 10 selected microorganism…
Il ruolo dell'organizzazione criminale nel contrasto al traffico illecito di tabacchi lavorati esteri
2019
the paper intends to analyze the features of the Italian criminal law on cigarette smuggling. The domestic system faces the illicit tobacco trade in a very peculiar way, especially if compared with the criminal law of other European countries (e.g. Germany, Greece, Portugal and Spain). The Italian strict regulation (artt. 291 bis, ter, quarter T.U.D.) could appear also unreasonable if set side by side with the domestic legislation on smuggling of goods. Indeed, the latter is characterized by a large use of administrative sanctions instead of the severe criminal penalties related to the cigarette smuggling. The paper aims at demonstrating that the domestic firm method is based on the will to…
Effects of tobacco cigarettes, e-cigarettes, and waterpipe smoking on endothelial function and clinical outcomes
2020
Abstract Tobacco smoking is a leading cause of non-communicable disease globally and is a major risk factor for cardiovascular disease (CVD) and lung disease. Importantly, recent data by the World Health Organizations (WHO) indicate that in the last two decades global tobacco use has significantly dropped, which was largely driven by decreased numbers of female smokers. Despite such advances, the use of e-cigarettes and waterpipes (shisha, hookah, narghile) is an emerging trend, especially among younger generations. There is growing body of evidence that e-cigarettes are not a harm-free alternative to tobacco cigarettes and there is considerable debate as to whether e-cigarettes are saving …
El demonio social en la Constitución / 3
2004
Este artículo forma un bloque junto a "Ambiciones de un europeísta (1)" (El País, 2 de octubre de 2004); "Matria Europa, 2" (El País, 16 de octubre de 2004) y "Prisas intergubernamentales / 4" (El País, 30 de obtubre de 2004).
Composting rice straw with sewage sludge and compost effects on the soil-plant system.
2008
Composting organic residue is an interesting alternative to recycling waste as the compost obtained may be used as organic fertilizer. This study aims to assess the composting process of rice straw and sewage sludge on a pilot-scale, to evaluate both the quality of the composts obtained and the effects of applying such compost on soil properties and plant development in pot experiments. Two piles, with shredded and non-shredded rice straw, were composted as static piles with passive aeration. Throughout the composting process, a number of parameters were determined, e.g. colour, temperature, moisture, pH, electrical conductivity, organic matter, C/N ratio, humification index, cation exchang…