Observation of Rayleigh-Lamb waves generated by the 2022 Hunga-Tonga volcanic eruption with the POLA detectors at Ny-Ålesund.

The eruption of the Hunga-Tonga volcano in the South Pacific Ocean on January 15, 2022, at about 4:15 UTC, generated a violent explosion, which created atmospheric pressure disturbances in the form of Rayleigh-Lamb waves detected all over the globe. Here we discuss the observation of the Hunga-Tonga shock-wave performed at the Ny-Ålesund Research Station on the Spitsbergen island, by the detectors of the PolarquEEEst experiment and their ancillary sensors. Online pressure data as well as the results of dedicated offline analysis are presented and discussed in details.

Salivary microRNAs are potential biomarkers for the accurate and precise identification of inflammatory response after tail docking and castration in piglets.

The present study aimed to investigate whether acute pain associated with castration and tail docking of male piglets may modulate the expression of salivary microRNAs (miRNAs) and to explore their potential use as biomarkers. Thirty-six healthy 4-d-old piglets (Hermitage × Duroc) were randomly assigned to three groups: the first group (12 piglets) has been pretreated with anesthetic and anti-inflammatory drugs (ANA) and then castrated and tail docked; the second one (12 piglets) has been castrated and tail docked without any drugs (CONV); the third one (12 piglets) has been only handled (SHAM). Saliva was collected 10 min before (control group) and 30 to 45 min after the procedures.

A multicenter study of viable PCR using propidium monoazide to detect Legionella in water samples.

Legionella quantification in environmental samples is overestimated by qPCR. Combination with a viable dye, such as Propidium monoazide (PMA), could make qPCR (named then vPCR) very reliable. In this multicentre study 717 artificial water samples, spiked with fixed concentrations of Legionella and interfering bacterial flora, were analysed by qPCR, vPCR and culture and data were compared by statistical analysis.

In vitro and in vivo immune stimulating effects of a new standardized Echinacea angustifolia root extract (Polinacea).

Polinacea is a new standardized hydroethanolic extract obtained from Echinacea angustifolia roots containing echinacoside (>4%), the high molecular weight polysaccharide IDN 5405 (>5%) and a isobutylamide fraction (<0.1%). For in vitro tests, a bacterial lipopolysaccharide-free (LPS-free) Polinacea has been prepared in order to avoid non-specific responses of immunocompetent cells.