1,721,061 research outputs found
Impiego di moss e lichen bags per il monitoraggio dell’inquinamento atmosferico nell’area metropolitana di Napoli. Convegno annuale della Società Lichenologica Italiana: La Lichenologia Italiana -Bilancio di fine secolo. Napoli 22-24 Ottobre
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. Moss and lichen bags as biomonitors of air contamination by heavy metals in the urban area of Naples (Italy). XIII International Symposium of Criptogamic Botany. Madrid 19-22 Dicembre.
No full textBiological Responses to Cadmium Stress in Liverwort Conocephalum conicum (Marchantiales)
Full text linkOxidative damage (production and localization of reactive oxygen species) and related response mechanisms (activity of antioxidant enzymes), and induction of Heat Shock Protein 70 expression, have been studied in the toxi-tolerant liverwort Conocephalum conicum (Marchantiales) in response to cadmium stress using two concentrations (36 and 360 μM CdCl2). Cadmium dose-dependent production of reactive oxygen species (ROS) and related activity of antioxidant enzymes was observed. The expression level of heat shock protein (Hsp)70, instead, was higher at 36 μM CdCl2 in comparison with the value obtained after exposure to 360 μM CdCl2, suggesting a possible inhibition of the expression of this stress gene at higher cadmium exposure doses. Biological responses were related to cadmium bioaccumulation. Since C. conicum was able to respond to cadmium stress by modifying biological parameters, we discuss the data considering the possibility of using these biological changes as biomarkers of cadmium pollution
. Moss and lichen bags as biomonitors of air contamination by heavy metals in the urban area of Naples (Italy). XIII International Symposium of Criptogamic Botany. Madrid 19-22 Dicembre.
No full textEFFECTS OF SEVEN PURE FLAVONOIDS FROM MOSSES ON GERMINATION AND GROWTH OF TORTULA MURALIS HEDW (BRYOPHYTA) AND RAPHANUS SATIVUS L. (MAGNOLIOPHYTA).
No full textGoing Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Impiego di moss e lichen bags per il monitoraggio dell’inquinamento atmosferico nell’area metropolitana di Napoli. Convegno annuale della Società Lichenologica Italiana: La Lichenologia Italiana -Bilancio di fine secolo. Napoli 22-24 Ottobre
No full textEPIPHYTIC BRYOPHYTES OF QUERCUS ILEX IN THE REGION OF CAMPANIA (SOUTHERN ITALY) IN URBAN AND EXTRAURBAN SITES AND THEIR RELATION TO ENVIRONMENT.
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