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showing 10 items of 1194 documents
A large factory-scale application of selected autochthonous lactic acid bacteria for PDO Pecorino Siciliano cheese production
2016
The main hypothesis of this study was that the autochthonous lactic acid bacteria (LAB) selected for their dairy traits are able to stabilize the production of PDO (Protected Denomination of Origin) Pecorino Siciliano cheese, preserving its typicality. The experimental plan included the application of a multi-strain lactic acid bacteria (LAB) culture, composed of starter (Lactococcus lactis subsp. lactis CAG4 and CAG37) and non starter (Enterococcus faecalis PSL71, Lactococcus garviae PSL67 and Streptococcus macedonicus PSL72) strains, during the traditional production of cheese at large scale level in six factories located in different areas of Sicily. The cheese making processes were foll…
Active behaviour during early development shapes glucocorticoid reactivity.
2019
AbstractGlucocorticoids are the final effectors of the stress axis, with numerous targets in the central nervous system and the periphery. They are essential for adaptation, yet currently it is unclear how early life events program the glucocorticoid response to stress. Here we provide evidence that involuntary swimming at early developmental stages can reconfigure the cortisol response to homotypic and heterotypic stress in larval zebrafish (Danio rerio), also reducing startle reactivity and increasing spontaneous activity as well as energy efficiency during active behaviour. Collectively, these data identify a role of the genetically malleable zebrafish for linking early life stress with …
Modelling the effect of temperature, pH, water activity, and organic acids on the germination time of Penicillium camemberti and Penicillium roquefor…
2017
International audience; In this study, the influence of environmental factors on the germination time of Penicillium camemberti and Penicillium roqueforti conidia was evaluated. To do so, the effects of i/temperature, pH, water activity, and ii/organic acids were determined using models based on i/cardinal values, and ii/minimum inhibitory concentration (MIC) respectively. Cardinal values for germination of conidia were not observed to be species dependent. Minimum temperatures were estimated to be below the freezing point, with an optimum of 26.9 degrees C, and a maximum of 33.5 degrees C. For both species, minimal and optimal a(w) values were found to be 0.83 and 0.99, respectively, while…
Development of a method for the direct fermentation of semolina by selected sourdough lactic acid bacteria
2016
Three obligately heterofermentative lactic acid bacteria (LAB) strains (Lactobacillus sanfranciscensis PON100336, Leuconostoc citreum PON10079 and Weissella cibaria PON10030) were used in this study as a multi-species starter culture for sourdough production. The starter inoculum was prepared and propagated in sterile semolina extract (SSE) broth. Acidification kinetics, microbiological counts detected on specific media for sourdough LAB, polymorphic profile comparison and species-specific PCRs evidenced a stability of the liquid inoculum over time determining its suitability for direct addition to semolina. In order to validate this innovative method for the production of durum wheat (Trit…
Dietary restriction: could it be considered as speed bump on tumor progression road?
2016
Dietary restrictions, including fasting (or long-term starvation), calorie restriction (CR), and short-term starvation (STS), are considered a strong rationale that may protect against various diseases, including age-related diseases and cancer. Among dietary approaches, STS, in which food is not consumed during designed fasting periods but is typically not restricted during designated feeding periods, seems to be more suitable, because other dietary regimens involving prolonged fasting periods could worsen the health conditions of cancer patients, being they already naturally prone to weight loss. Until now, the limited amount of available data does not point to a single gene, pathway, or …
Arctic aerosols and the ‘Divergence Problem’ in dendroclimatology
2021
Considering the importance and complexity of natural (e.g., volcanic eruptions and wildfires) and anthropogenic (e.g., mining, oil and shipping industries) aerosol emissions to Arctic warming is particularly timely given the recent temperature extremes recorded at high-northern latitudes (Cohen et al., 2020; Overland and Wang, 2021). Despite our knowledge about the observed and modelled climatic effects of rising Arctic aerosol concentrations (Schmale et al., 2021), which may exhibit regional and seasonal differences and call for diverse research priorities from local to circumpolar scales, we feel that the ecological consequences of an aerosol-induced reduction in surface irradiance (i.e.,…
Rotaļas 2-3 gadu vecu bērnu priekšstatu par sakarībām starp lielumiem veidošanās veicināšana
2020
Darba nosaukums: Rotaļas 2-3 gadu vecu bērnu priekšstatu par sakarībām starp lielumiem veidošanās veicināšana. Darba autore: Jekaterina Zaiceva. Darba zinātniskais vadītājs: profesore, Dr. paed. Rudīte Andersone Pētījuma mērķis: teorētiski izzināt un praktiski izpētīt rotaļas 2-3 gadu vecu bērnu priekšstatu par sakarībām starp lielumiem veidošanās veicināšanā. Pirmajā nodaļā ir analizēta pedagoģiskā un psiholoģiskā literatūra par rotaļām, to klasifikācija, otrajā nodaļā - par 2-3 gadu vecuma bērnu vecumposma raksturojumu, trešajā nodaļā - par 2-3 gadus vecu bērnu priekšstatiem par sakarībām starp lielumiem veidošanos. Ceturtajā nodaļā ir analizēta pedagoģiskā pieredze rotaļu izmantošanā vei…
Wind accretion in the massive X-ray binary 4U 2206+54: abnormally slow wind and a moderately eccentric orbit
2006
Massive X-ray binaries are usually classified depending on the properties of the donor star in classical, supergiant and Be X-ray binaries. The massive X-ray binary 4U 2206+54 does not fit in any of these groups, and deserves a detailed study to understand how the transfer of matter and the accretion on to the compact object take place. To this end we study an IUE spectrum of the donor and obtain a wind terminal velocity (v_inf) of ~350 km/s, which is abnormally slow for its spectral type. We also analyse here more than 9 years of available RXTE/ASM data. We study the long-term X-ray variability of the source and find it to be similar to that observed in the wind-fed supergiant system Vela …
Bagheria e l’amministrazione Cinque Stelle (Bagheria and Five Star local government)
2016
Il paper studierà il caso di Bagheria in provincia di Palermo, Comune amministrato da Patrizio Cinque sindaco del Movimento 5 Stelle da giugno 2014. A partire dall’analisi degli elementi che ne hanno contribuito a determinare il successo elettorale (connessi allo scenario e alla campagna elettorale), si prenderanno in considerazione le peculiarità dell’amministrazione locale pentastellata nei suoi primi due anni, approfondendo in particolare la relazione tra portavoce, attivisti ed elettori prima e durante il mandato, i rapporti con gli altri Meetup locali e nazionali, le strategie comunicative, i progetti, la capacità di resistenza agli scandali che hanno colpito l’assessore all’urbanistic…
Latvijas Vēstures Institūta Žurnāls. 2015, Nr. 3 (96)
2015
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