Search results for "Nisin"
showing 10 items of 100 documents
EVA antimicrobial films prepared by melt processing
2010
Self-organising maps for the analysis of data from big cohorts. The case of the Spanish CARMEN cohort
2015
Carbon fibre composite materials produced by gamma radiation induced curing of epoxy resins
2008
It is well known that ionizing radiation can initiate polymerization of suitable monomers for many applications. In this work an epoxy dlfunctional monomer has been used as matrix of a carbon fibre composite in order to produce materials through gamma radiation, for aerospace and advanced automotive applications. Radiation curing has been performed at different absorbed doses and, as comparison, also thermal curing of the same monomer formulations has been done. Furthermore some Irradiated samples have been also subjected to a post Irradiation thermal curing in order to complete the polymerization reactions. The properties of the cured materials have been studied by moisture absorption isot…
Dalla Tunisia alla Sicilia: prima e dopo la «primavera araba»
2020
L’immigrazione clandestina, da sempre esistita ma considerata cruciale dalla fine del XX secolo, per certi governi, per alcune organizzazioni e persino per taluni ricercatori, è divenuta la fonte dei mali dell'Europa. E non sono mancati, soprattutto negli ultimi anni coloro che hanno puntato il dito accusatore contro i paesi frontalieri del Nord Africa. La Tunisia, storicamente terra di immigrazione, ha vissuto un’emigrazione di massa solo dalla seconda metà degli anni sessanta del secolo scorso, quando soprattutto nelle giovani generazioni, il sentimento patriottico e nazionale di recente conquistato in età post-coloniale ha lasciato il posto alla necessità del sopravvivere e le aspirazion…
Drug-induced infiltrative lung disease
2009
International audience; Because the lung manifestations of drugs may be highly variable, a high index of suspicion is required. Both current and past drug intake should be carefully evaluated in any patient with infiltrative lung disease. Drug-induced infiltrative lung disease may manifest as variable clinical radiological patterns, including subacute or chronic interstitial pneumonia, pulmonary fibrosis, eosinophilic pneumonia (presenting as Loffler syndrome, or chronic or acute eosinophilic pneumonia), organising pneumonia, diffuse alveolar haemorrhage, acute respiratory distress syndrome, pulmonary oedema, lipoid pneumonia, alveolar proteinosis or sarcoidosis. A variety of drugs have bee…
Evaluation of radiation stability of electron beam irradiated Nafion® and sulfonated poly(ether ether ketone) membranes
2022
Proton exchange membranes (PEM), which have been commonly used in fuel cells have raised interest for the application in harsh environments involving ionizing radiation. Therefore, radiation stability and ability to sustain their functionality under the radiation environment are of great interest. Within this study, electron beam irradiation in dose range from 50 to 500kGy was used to evaluate the effects of radiation on the physico-chemical and mechanical properties of two types of PEM: commercial Nafion®117 and sulfonated poly(ether-ether-ketone) (SPEEK) with high degree of sulfonation (DS = 0.75±0.5). SPEEK membrane presented higher mechanical and thermal stability compared to that of Na…
Importance and efficiency of in-depth antimicrobial activity for the control of listeria development with nisin-incorporated sodium caseinate films
2010
Abstract The effect of antimicrobial sodium caseinate-based films was investigated on inhibition of Listeria innocua in cheese. Nisin was incorporated into sorbitol-plasticized sodium caseinate films at 1000 IU/cm2 and the films were prepared by casting methods. Mini red Babybel® cheese was chosen as a semi-soft cheese model. The antimicrobial activity was studied based on the contact between antimicrobial films and surface-contaminated as well as in-depth contaminated cheese samples during a 7-day storage at 4 °C. The active films produced resulted in a reduction of 1.1 log CFU/g reduction in L. innocua counts in surface-inoculated cheese samples after 1 week of storage as compared to cont…
Robustness of radiation beam profile measurements
2023
In this master’s thesis, profile measurements of PTW Semiflex 3D and PTW Semiflex ionisation chambers in addition to IBA MatriXX matrix detector were compared to each other using different measurement set-ups. The ionisation chamber measure- ments were done in a water phantom in horizontal and vertical orientations. Using two different set-ups in the horizontal orientation. The first horizontal set-up used the current clinical quality assurance program in Tampere University Hospital with the wire of the chamber lying deep in the water phantom. The second horizontal measurements were done with more of the wire in the radiation field by having the wire closer to the surface of the water. Meas…
Lisämateriaali artikkeliin "Exposure to environmental radionuclides is associated with altered metabolic and immunity pathways in a wild rodent".
2022
Electronic material for Kesäniemi J, Jernfors T, Lavrinienko A, Kivisaari K, Kiljunen M, Mappes T & Watts PC. 2019. Exposure to environmental radionuclides is associated with altered metabolic and immunity pathways in a wild rodent. Molecular Ecology 28: 4620–4635. Contains transcriptome annotation data and output of differential expression and gene ontology enrichment analyses. Parts of the dataset originally published in DRYAD (https://doi.org/10.5061/dryad.j3c6r69).