Search results for "RICH"
showing 10 items of 3360 documents
PVC silver zeolite composites with antimicrobial properties
2011
Poly(vinyl chloride) (PVC) composites containing increasing amounts (2-20%, w/w) of silver zeolite (SZ) were prepared by melt mixing and characterized by thermal, mechanical and rheological analyses. The addition of large amount of SZ did not influence the processability and the formability of the composites, if compared to neat plasticized PVC. The antibacterial activity of PVC SZ composites was tested on Escherichia coli and Staphylococcus epidermidis and resulted promising both in culture broth and on agar plate and also in sterile urine seeded with these strains, for simulation purposes. In sterile urine, composites induced a significant reduction (4-6 log units) of viability of both st…
Wrażliwość na olejki eteryczne środowiskowych lekoopornych szczepów Escherichia coli
2015
W środowisku coraz powszechnej stwierdzana jest obecność lekoopornych szczepów Escherichia coli. Alternatywną drogę ich eliminacji mogą stanowić biodegradowalne i nietoksyczne substancje, między innymi olejki eteryczne. Celem pracy była ocena działania olejków eterycznych na środowiskowe lekooporne szczepy Escherichia coli. Materiał badawczy stanowiło 10 wyizolowanych ze środowiska naturalnego lekooopornych szczepów E. coli, w tym 8 glukuronidazo-dodatnich. Wrażliwość szczepów na takie antybiotyki, jak: ampicylina, amoksycylina, cefotaksym, chloramfenikol, cyprofloksacyna, ceftazydym, doksycyklina, gentamycyna, kanamycyna, trimetoprim, tetracyklina, streptomycyna, kwas nalidyksowy oraz na s…
Original data for manuscript: Quantity and Quality of Aquaculture Enrichments Influence Disease Epidemics and Provide Ecological Alternatives to Anti…
2021
The data processed and analyzed in this study are given in a single file: Karvonen et al. exposure data.xlsx. For detailed description of the material, methods and results of the study, see the article.
Caratterizzazione e metodi di riconoscimento degli arc faults per applicazioni in sistemi di bassa tensione
2013
La ricerca sul campo e le sue sconfitte. Un racconto di ricerca-azione nell’ex-Ospedale Psichiatrico di Palermo
2010
Il saggio si interroga sul valore di un patrimonio come il complesso dell''ex Ospedale Psichiatrico di Palermo.Ricostruendo la storia della psichiatria italiana e, in particolare, quella palermitana si vuole mettere in luce come l''area in oggetto sia il frutto del contesto di una società in diverse epoche storiche. Avvalendosi di una ricerca sul campo che aveva come obiettivo il seguire il processo di riuso dell''area, il saggio mostra come i risultati di tale area siano il frutto di scelte politiche che tradiscono gli assunti di base e la memoria del luogo. In ultimo ci si chiede quando e come i risultati di una ricerca sul campo possano essere considerati un successo. Se cioè l''obiettiv…
Effetti del percorso delle sollecitazioni sul comportamento meccanico di un'argilla compattata in prove edometriche a suzione controllata
2009
Si analizza il comportamento meccanico di un’argilla a scaglie compattata non satura sottoposta, in un edometro a suzione controllata, a tre distinte serie di cicli di imbibizione ed essiccamento a pressione verticale netta costante. Ciascuna serie è stata preceduta da differenti percorsi di carico e scarico a suzione costante, allo scopo di studiare gli effetti del percorso delle sollecitazioni sulle deformazioni volumetriche e sulle variazioni di contenuto d’acqua indotte dalle variazioni cicliche della suzione.
Influenza di argille organomodificate su morfologia e proprietà di miscele polimeriche polietilene/poliammide
2008
Fluorescence enhancement of quinolines by protonation.
2020
A study of the fluorescence enhancement of isoquinoline, acridine (benzo[b]quinoline) and benzo[h]quinoline is reported with six organic acids of different pKa values. Protonation was found to be an effective tool in the fluorescence enhancement of quinolines. A significant increase in the fluorescence intensity is observed only when strong acids are used, resulting in an over 50-fold increase in fluorescence with trifluoroacetic or benzenesulfonic acid and isoquinoline in a 1.5 : 1 ratio. The benzenesulfonic acid was found to be the most effective in the protonation of the bases despite its higher pKa value compared to trifluoro- and trichloroacetic acid. The X-ray crystal structures of 14…
Performing arts and mediation technology in the period of lockdown
2021
Advancements in digital technologies have become novel ways to enrich communication, expression, and transmission of arts knowledge. Technology is increasingly implemented in the performance space, as a source of inspiration for artists. Especially in this period of lockdown, mediation technology has turned out to be an essential tool for different aspects of social life, as in performing arts. With venues, schools and artistic activities closed, performers, students and spectators have been obliged to keep connecting in remote conditions. This article wants to retrace the aesthetic impact of mediation technology in performing arts during this period of lockdown by focusing on the aspects t…
The pathophysiology of intestinal lipoprotein production
2015
Intestinal lipoprotein production is a multistep process, essential for the absorption of dietary fats and fat-soluble vitamins. Chylomicron assembly begins in the endoplasmic reticulum with the formation of primordial, phospholipids-rich particles that are then transported to the Golgi for secretion. Several classes of transporters play a role in the selective uptake and/or export of lipids through the villus enterocytes. Once secreted in the lymph stream, triglyceride-rich lipoproteins (TRLs) are metabolized by Lipoprotein lipase (LPL), which catalyzes the hydrolysis of triacylglycerols of very low density lipoproteins (VLDLs) and chylomicrons, thereby delivering free fatty acids to vario…