Search results for "OAE"

High-Resolution Fluorescence Spectra of Airborne Biogenic Secondary Organic Aerosols: Comparisons to Primary Biological Aerosol Particles and Implica…

2021

Aqueous extracts of biogenic secondary organic aerosols (BSOAs) have been found to exhibit fluorescence that may interfere with the laser/light-induced fluorescence (LIF) detection of primary biological aerosol particles (PBAPs). In this study, we quantified the interference of BSOAs to PBAPs by directly measuring airborne BSOA particles, rather than aqueous extracts. BSOAs were generated by the reaction of d-limonene (LIM) or α-pinene (PIN) and ozone (O3) with or without ammonia in a chamber under controlled conditions. With an excitation wavelength of 355 nm, BSOAs exhibited peak emissions at 464–475 nm, while fungal spores exhibited peak emissions at 460–483 nm; the fluorescence intensit…

Neuroestetica e fenomenologia della percezione pittorica e musicale

2008

Neuroaesthetics aims at working out a neurobiological theory of aesthetic experience that accounts for neural invariants of perceptual properties fo artworks. In this paper, arguments are proposed that deal with the specification of the intended domain of application, its implications for neurobiological evidence that qualifies as explanans, the contribution that a rigorous phenomenological explanation of the perceptual variety in visual and musical arts can give to an evolutionary account of the cognitive skills underlying arts.

Metaproteomic analysis of atmospheric aerosol samples.

2016

Metaproteomic analysis of air particulate matter provides information about the abundance and properties of bioaerosols in the atmosphere and their influence on climate and public health. We developed and applied efficient methods for the extraction and analysis of proteins from glass fiber filter samples of total, coarse, and fine particulate matter. Size exclusion chromatography was applied to remove matrix components, and sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE) was applied for protein fractionation according to molecular size, followed by in-gel digestion and LC-MS/MS analysis of peptides using a hybrid Quadrupole-Orbitrap MS. Maxquant software and the Swiss-…

Bioaerosols in the Amazon rain forest: temporal variations and vertical profiles of Eukarya, Bacteria, and Archaea

2021

The Amazon rain forest plays a major role in global hydrological cycling, and biogenic aerosols are likely to influence the formation of clouds and precipitation. Information about the sources and altitude profiles of primary biological aerosol particles, however, is sparse. We used fluorescence in situ hybridization (FISH), a molecular biological staining technique largely unexplored in aerosol research, to investigate the sources and spatiotemporal distribution of Amazonian bioaerosols on the domain level. We found wet season bioaerosol number concentrations in the range of 1–5 × 105 m−3 accounting for > 70 % of the coarse mode aerosol. Eukaryotic and bacterial particles predominated, …

Importanza del ruolo delle OAE nell’accertamento degli acufeni in età infantile.

2005

Biotechnology and Conservation of Cultural Heritage

2017

Over the past few decades, biotechnology has provided innovative techniques useful for diagnosing cultural heritage deterioration induced by microbiological systems and for defining efficient conservation/restoration strategies. Seen from this per- spective, the International Congress on Molecular Biology and Cultural Heritage held in Seville (Spain) in 2003 represents a milestone. This book comes from the experience gained in the last decade of basic and applied research, developed in the Laboratory of Biology and Biotechnology for Cultural Heritage (LaBBCH), within the framework of national and international research projects and in collaboration with other Italian and foreign research in…

BIOAEROSOL IN INDOOR ENVIRONMENTS FOR CONSERVATION OF CULTURAL HERITAGE: POTENTIAL RISKS FOR HISTORICAL-ARTISTIC MANIFACTS ANO HUMAN HEALTH

2014

An integrated approach was applied for the characterization of the biological airborne particulate in four Sicilian sites with peculiar structure, thermo-hygrometric and lighting parameters. We focalized the attention on: ,) Crypt in the Cathedral Treasury Museum (Palermo), an underground environment (lithic and stone artifact), daily visited by tourist and characterized by a reduced indoor-outdoor exchange; it) the Saints Cave in Licodia Eubea (Catania), a semi-confined environment (fresco), strongly influenced by the surrounding countryside and by a continuous airflow; iit) the Diocesan Historic Archive in Palermo, (documentary funds, IX-XXsec.), characterized by low air change rate and r…

Immaginazione

2022

The most recent discoveries deriving from the exchanges between aesthetics and neuroscience – especially those stressing the importance of the sensory-motor system in both scientific and aesthetic experience – have raised a particular attention on the subjectivity of mental processes, especially those related to the knowledge processes, and on the role of imagination. These results have, still nowadays, influence and confirmation in literature, which many scholars interested in a cognitivistic approach consider as related, if not just the same, to the ability of mankind to make tools and, thus, to make sense. An example of this reciprocal influence of neuroscience and literature is without …

Critica del riduzionismo e pensiero morfologico. La «Neuronale Ästhetik» di Olaf Breidbach

2015

The proposal of a neuronal aesthetics developed by Olaf Breidbach looks like one of the most advanced points in contemporary morphological thinking and as an extremely challenging effort to redefine the conceptual system of aesthetics; at the same time it is, unfortunately prematurely, the theoretical testament of its author.

Mobile phone and auditory system: update

2009

The aim of this study is to asses the non-thermal effects of the electromagnetic fields generated by 915 MHz GSM cellular phones on the human cochlear activity using transient evoked otoacoustic emissions (TEOAE). The study was carried on 205 young and healthy volunteers (age 18-30 years) with normal hearing which were randomly divided into two samples consisting of 85 (Gcase) and 120 (Gcontrol) respectively. The first one was exposed to genuine 10 minutes of GSM electromagnetic fields while the second, undergone sham exposure, was considered as control group for the statistical investigations. All the participants were blind to the genuine or sham exposure. The TEOAEs were measured in the …