Up until now, no significant emotional or cognitive modifications have been found in psychological studies performed during Italian Antarctic summer campaigns, which last from 2 to 5 months. A substantial emotional stability and a general satisfactory adjustment of the expedition participants emerged in the research. To investigate the coping strategies used to deal with the Antarctic environment, the Profile of Mood States (POMS) and the Ways of Coping Inventory were administered to a group of 11 Italian expeditioners before leaving and before returning from the campaign. The results confirm the emotional stability found in the previous studies and show a decrease of several ways of coping. Particularly, there was a decrease in seeking social support and in problem-focused coping. The discussion and interpretation of the findings are reported, and the hypothesis of a frozen reactivity mediated by a possible perceptual defense is suggested.
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http://dx.doi.org/10.1177/00139160021972432 | DOI Listing |
Sci Data
December 2024
Center for Coastal and Ocean Mapping, University of New Hampshire, Durham, NH, USA.
Knowledge about seafloor depth, or bathymetry, is crucial for various marine activities, including scientific research, offshore industry, safety of navigation, and ocean exploration. Mapping the central Arctic Ocean is challenging due to the presence of perennial sea ice, which limits data collection to icebreakers, submarines, and drifting ice stations. The International Bathymetric Chart of the Arctic Ocean (IBCAO) was initiated in 1997 with the goal of updating the Arctic Ocean bathymetric portrayal.
View Article and Find Full Text PDFAn Acad Bras Cienc
November 2024
Rio de Janeiro State University/LARAMG, Pavilhão Haroldo L. Cunha, Subsolo, Rua São Francisco Xavier, 524, Maracanã, 20550-013 Rio de Janeiro, RJ, Brazil.
The Hunga Tonga-Hunga/Hunga-Ha'apai eruption on January 15, 2022 sent off a plume of ash material up to the stratosphere and triggered a meteotsunami and barometric pressure pulse that rippled through the atmosphere and oceans all around the world. The nature of the volcanic event and its global impacts on the oceans, atmosphere, lithosphere and the cryosphere are a matter of debate. Here we present a first overview of the time travel of the sound atmospheric pressure wave through the Antarctic continent based on in situ measurements, which represented a unique event observed through the polar ice sheet during the instrumental meteorological era.
View Article and Find Full Text PDFSci Total Environ
October 2023
Research and Innovation Centre, Fondazione Edmund Mach, Via E. Mach 1, 38098 San Michele all'Adige, Italy.
Ice free areas of continental Antarctica are among the coldest and driest environments on Earth, and yet, they support surprisingly diverse and highly adapted microbial communities. Endolithic growth is one of the key adaptations to such extreme environments and often represents the dominant life-form. Despite growing scientific interest, little is known of the mechanisms that influence the assembly of endolithic microbiomes across these harsh environments.
View Article and Find Full Text PDFMicroorganisms
October 2024
Department of Biomedical and Dentistry Sciences and Morphological and Functional Images (BIOMORF), University of Messina, Via Consolare Valeria 1, 98125 Messina, Italy.
Microbial colonization of plastic polymers in Antarctic environments is an under-investigated issue. While several studies are documenting the spread of plastic pollution in the Ross Sea, whether the formation of a plastisphere (namely the complex microbial assemblage colonizing plastics) may favor the spread of antibiotic-resistant bacteria (ARB) in this marine environment is unknown yet. A colonization experiment was performed in this ecosystem, aiming at exploring the potential role of plastic polymers as a reservoir of antibiotic resistance.
View Article and Find Full Text PDFPeptides
December 2024
Department for Innovation in Biological, Agrofood and Forest Systems, University of Tuscia, Largo dell'Università snc, Viterbo, Italy.
Antarctic fishes, living in an extreme environment and normally exposed to pathogens, are a promising source of antimicrobial peptides (AMPs). These are emerging as next-generation drugs due to their activity against multidrug resistant (MDR) bacteria. To infect hosts, beyond intrinsic/acquired resistance, MDR species also use virulence factors such as protease secretion.
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