Search results for "SARI"
showing 10 items of 929 documents
The influence of oxygen and methane on nitrogen fixation in subarctic Sphagnum mosses
2018
Biological nitrogen fixation is an important source of bioavailable nitrogen in Sphagnum dominated peatlands. Sphagnum mosses harbor a diverse microbiome including nitrogen-fixing and methane (CH4) oxidizing bacteria. The inhibitory effect of oxygen on microbial nitrogen fixation is documented for many bacteria. However, the role of nitrogen-fixing methanotrophs in nitrogen supply to Sphagnum peat mosses is not well explored. Here, we investigated the role of both oxygen and methane on nitrogen fixation in subarctic Sphagnum peat mosses. Five species of Sphagnum mosses were sampled from two mesotrophic and three oligotrophic sites within the Lakkasuo peatland in Orivesi, central Finland. Mo…
Transcriptomic study of the toxic mechanism triggered by beauvericin in Jurkat cells
2018
Beauvericin (BEA), an ionophoric cyclic hexadepsipeptide mycotoxin, is able to increase oxidative stress by altering membrane ion permeability and uncoupling oxidative phosphorylation. A toxicogenomic study was performed to investigate gene expression changes triggered by BEA exposure (1.5, 3 and 5 mu M; 24 h) in Jurkat cells through RNA-sequencing and differential gene expression analysis. Perturbed gene expression was observed in a concentration dependent manner, with 43 differentially expressed genes (DEGs) overlapped in the three studied concentrations. Gene ontology (GO) analysis showed several biological processes related to electron transport chain, oxidative phosphorylation, and cel…
A Clonal Lineage of Fusarium oxysporum Circulates in the Tap Water of Different French Hospitals.
2016
ABSTRACT Fusarium oxysporum is typically a soilborne fungus but can also be found in aquatic environments. In hospitals, water distribution systems may be reservoirs for the fungi responsible for nosocomial infections. F. oxysporum was previously detected in the water distribution systems of five French hospitals. Sixty-eight isolates from water representative of all hospital units that were previously sampled and characterized by translation elongation factor 1α sequence typing were subjected to microsatellite analysis and full-length ribosomal intergenic spacer (IGS) sequence typing. All but three isolates shared common microsatellite loci and a common two-locus sequence type (ST). This S…
Maristem stem cells of marine/aquatic invertebrates: from basic research to innovative applications
2018
The “stem cells” discipline represents one of the most dynamic areas in biomedicine. While adult marine/aquatic invertebrate stem cell (MISC) biology is of prime research and medical interest, studies on stem cells from organisms outside the classical vertebrate (e.g., human, mouse, and zebrafish) and invertebrate (e.g., Drosophila, Caenorhabditis) models have not been pursued vigorously. Marine/aquatic invertebrates constitute the largest biodiversity and the widest phylogenetic radiation on Earth, from morphologically simple organisms (e.g., sponges, cnidarians), to the more complex mollusks, crustaceans, echinoderms, and protochordates. These organisms contain a kaleidoscope of MISC-type…
Hyaluronic-based antibacterial hydrogel coating for implantable biomaterials in orthopedics and trauma. From basic research to clinical applications.
2018
Bacterial colonization of implanted biomaterials remains one of the most challenging complications in orthopedics and trauma surgery, with extremely high social and economic costs. Antibacterial coating of implants has been advocated by many experts as a possible solution to reduce the burden of implant-related infection and several different solutions have been proposed in the last decades. However, while most of the investigated technologies have shown their efficacy in vitro and/or in vivo, only few were able to reach the market, due to clinical, industrial, economic and regulatory issues. Hyaluronic acid composites have been previously shown to possess antifouling capabilities and have …
Policiers, gendarmes et signalement descriptif. Représentations, apprentissages et pratiques d'une nouvelle technique de police judiciaire, en France…
2006
À partir des années 1880, les nouveaux procédés d’identification développés par Alphonse Bertillon à la Préfecture de police de Paris représentent des moyens modernes et efficaces de police judiciaire face à une criminalité perçue comme irrésistible. Parmi ceux-ci, le signalement descriptif, ou « portrait parlé », est réputé permettre la reconnaissance infaillible d’un individu dont les traits du visage auraient été minutieusement décrits par cette technique particulière. Fait notable, sans doute inédit et sans équivalent alors, cette technique est enseignée aux divers acteurs de la police française – policiers de la Préfecture de police, de la Sûreté générale, mais aussi gendarmes et garde…
Reverse-transcribing viruses (Belpaoviridae, Metaviridae, and Pseudoviridae)
2021
Fourth Edition.
The influence of storage conditions on flavour changes in human milk
2009
http://www.sciencedirect.com/ ; http://www.elsevier.com/; International audience; The effects of freeze-storage on human milk have been investigated with regard to sensory changes and modifications in the molecular composition of constituent odour-active volatiles. Sensory evaluation showed that fishy-metallic odour attributes are generated during storage, as are rancid-sweaty odour notes, which were described by panellists to be highly unpleasant. To monitor the dynamics of off-odour development in human milk, sensory evaluation in both orthonasal and retronasal mode was performed at defined time intervals of storage, with parallel evaluation of human milk samples that had been heated prio…
Improving Speaker-Independent Lipreading with Domain-Adversarial Training
2017
We present a Lipreading system, i.e. a speech recognition system using only visual features, which uses domain-adversarial training for speaker independence. Domain-adversarial training is integrated into the optimization of a lipreader based on a stack of feedforward and LSTM (Long Short-Term Memory) recurrent neural networks, yielding an end-to-end trainable system which only requires a very small number of frames of untranscribed target data to substantially improve the recognition accuracy on the target speaker. On pairs of different source and target speakers, we achieve a relative accuracy improvement of around 40% with only 15 to 20 seconds of untranscribed target speech data. On mul…
Who Intends to Enroll in Entrepreneurship Education? Entrepreneurial Self-Identity as a Precursor
2018
Entrepreneurial self-identity is attracting increasing attention as a potentially relevant variable in explaining the entrepreneurial process. So far, most research treats entrepreneurial self-identity as a consequence of, or, at the most, as being developed through the start-up process. In this article, in contrast, we analyze its role as a previous element that helps determine the entrepreneurial intention of individuals, the perceived usefulness of entrepreneurship education, and, indirectly, their interest in participating in entrepreneurship education courses. Our hypotheses are tested on a sample of Italian university students and graduates ( N = 88) with no previous participation in…