222 research outputs found
Passive acoustics tools for the implementation of Acoustic Risk Mitigation Policies.
No full textTo reduce the impact of high power underwater sound sources, Acoustic Risk Mitigation Policies have been drawn up and are
currently under implementation. Basically, ARMP are aimed at preserving particularly populated areas and critical habitats, and at reducing or stopping emissions if animals are within a defined distance. Among tested approaches, passive acoustics has shown to be an efficient tool to (a) expand knowledge about marine mammal distribution in space and time (i.e. with surveys), (b) characterise
biological and artificial sources, (c) evaluate effects of sound exposure on animals' behaviour, and (d) monitor, detect, locate and track vocalising animals within, or approaching, a sound exposure
area. Instruments and protocols for the passive acoustic detection of marine mammals developed at the University of Pavia are described
Stress and Workload Assessment in Aviation—A Narrative Review
No full textIn aviation, any detail can have massive consequences. Among the potential sources of failure, human error is still the most troublesome to handle. Therefore, research concerning the management of mental workload, attention, and stress is of special interest in aviation. Recognizing conditions in which a pilot is over-challenged or cannot act lucidly could avoid serious outcomes. Furthermore, knowing in depth a pilot’s neurophysiological and cognitive–behavioral responses could allow for the optimization of equipment and procedures to minimize risk and increase safety. In addition, it could translate into a general enhancement of both the physical and mental well-being of pilots, producing a healthier and more ergonomic work environment. This review brings together literature on the study of stress and workload in the specific case of pilots of both civil and military aircraft. The most common approaches for studying these phenomena in the avionic context are explored in this review, with a focus on objective methodologies (e.g., the collection and analysis of neurophysiological signals). This review aims to identify the pros, cons, and applicability of the various approaches, to enable the design of an optimal protocol for a comprehensive study of these issues
Stima acustica della crescita di un capodoglio (Physeter macrocephalus Linneaus, 1758) ricatturato in Mar Ligure
No full textstima delle dimensioni di un capodoglio ricatturato tramite fotoidentificazione in Mar Ligure a distanza di un anno e stima della crescita attraverso l'analisi della struttura dei segnali emessi (misura dell'Inter Pulse Interval
Freely faceted classification for the BioAcoustic Reference Database.
No full textThe Integrative Level Classification (ILC) research project is experimenting with a knowledge organization
system based on phenomena rather than disciplines. Each phenomenon has a constant notation, which can be
combined with that of any other phenomenon in a freely faceted structure. Citation order can express
differential focality of the facets. Very specific subjects can have long classmarks, although their complexity
is reduced by various devices. Freely faceted classification is being tested by indexing a corpus of about
3300 papers in the interdisciplinary domain of bioacoustics. The subjects of these papers often include
phenomena from a wide variety of integrative levels (mechanical waves, animals, behaviour, vessels,
fishing, law...) as well as information about the methods of study, as predicted in the León Manifesto. The
archive is recorded in a MySQL database, and can be fed and searched through PHP Web interfaces
A Preliminary Comparison between Traditional and Gamified Leg Agility Assessment in Parkinsonian Subjects
No full textParkinson's disease (PD) severity is assessed through a set of standardised tasks defined by clinical scales such as the Unified Parkinson's Disease Rating Scale (UPDRS). In particular, Leg Agility is a well-established test among the motor tasks included in UPDRS, which consists in repeated cycles of knee lifting and lowering, while sitting on a chair. Leg Agility objective evaluation through optical devices is often investigated for telemedicine applications. Moreover, remote rehabilitation for PD subjects through virtual exergaming is becoming a popular approach thanks to its versatility, increased user engagement and the possibility of coupling it with remote monitoring tools. This work investigates if lower-limb exergaming may also be exploited for assessment purposes similar to traditional evaluation. In particular, if there exists a statistical difference between the kinematic description of Leg Agility versus the one of a Bouncing Ball exergame, as provided by an optical (RGB-D) acquisition system suitable for remote monitoring. Preliminary results obtained by the comparison of the two types of assessment in a small group of parkinsonian subjects are presented and discussed
Sperm whales (Physeter macrocephalus L.) off the north-west coast of Corsica, France, in summer 1996.
No full textdescription of an acoustic/visual surveys in the Pelagos Sanctuary to study sperm whale
Rilievi acustici sul capodoglio (Physeter macrocephalus) nel Mar Mediterraneo Centrale
No full textSintesi dei rilievi acustici effettuati per studiare il capodogli nel Mediterraneo Centrale
Software tools for real-time IPI measurements on sperm whale sounds.
No full textdescription of a software tool to measure the Inter-Pulse-Interval in sperm whale clicks to estimate the size of the emitting animal. A real-time cepstrum based technique is described and demonstrated
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