Search results for "Organo"
showing 10 items of 1460 documents
Dehydration of Morocco tomato: effect on composition and organoleptic properties
2011
Dehydration of Morocco tomato: effect on composition and organoleptic properties. Fruit and vegtable processing. 1. euro-mediterranean symposium
Indeks organów istniejących w kościołach i kaplicach diecezji gliwickiej
2022
The article is a presentation of organ instruments found in Catholic churches and chapels in the Diocese of Gliwice. The first part of the article is a short description of the history of the diocese. The main part of the article is a list of organs in alphabetical order by place names and church names including 134 instruments. The last part of the article is a summary prepared based on a few criteria: the number of organs built in chronological order, the builders of the instruments and the technical and construction solutions used.
New methodologies in transition metal catalysis. Organofluorine chemistry as the benchmark application.
2017
A lo largo de las últimas décadas, los compuestos organofluorados han encontrado numerosas aplicaciones dentro del campo de las industrias farmacéutica y agroquímica, así como en ciencias de los materiales. Dadas las singulares propiedades del átomo de flúor, éste es capaz de inducir alteraciones significativas en propiedades físico-químicas de las moléculas como lipofilia, distribución de cargas, acidez-basicidad, capacidad de formar enlaces de hidrógeno e incluso, equilibrios conformacionales. Sin embargo, la presencia de flúor en productos naturales es escasa. De hecho, la gran mayoría de las moléculas orgánicas que contienen flúor son sintéticas. De ahí el gran interés por parte de la c…
Organocatalytic Enantioselective Vinylogous Henry Reaction of 3,5-Dimethyl-4-nitroisoxazole with Trifluoromethyl Ketones
2017
The enantioselective vinylogous Henry reaction of 3,5-dimethyl-4-nitroisoxazole with trifluoromethyl ketones employing a bifunctional squaramide organocatalyst has been developed. A series of isoxazole bearing trifluoromethyl-substituted tertiary alcohols, 2-substituted (R)-1,1,1-trifluoro-3-(3-methyl-4-nitroisoxazol-5-yl)propan-2-ols, were obtained under these mild reaction conditions in good yields and moderate to good enantioselectivities
Attività anti-proliferativa di derivati di organostagno(IV) con Na-Boc-Ornitina e studio dell’azione pro-apoptotica del derivato Ph3Sn(Boc- Orn)
2013
Nuovi composti di organostagno(IV) [R3SnL e R¢2SnL2 (R = Me, Ph e R¢= Me, nBu, HL= Na-Boc-Ornitina)] sono stati sintetizzati e caratterizzati sia allo stato solido (FT-IR) che in soluzione (1H e 13C NMR) per poterne valutare la citotossicità in linee cellulari tumorali [1]. Na-Boc-Ornitina si comporta come un legante chelante dello stagno con il gruppo carbossilato, mentre il gruppo amminico Na-protetto è esente dalla coordinazione. I composti sono stati testati per l’attività citotossica in vitro su cellule neoplastiche umane HepG2 di epatocarcinoma ed MCF7 di cancro al seno. L’effetto dei composti, nel range da 0.5 a 25 μM, dopo 24 h di incubazione è stato valutato mediante saggio MTT. Il…
Capacità sequestrante di acido alginico e fulvico nei confronti di composti di triorganostagno(IV)
2006
Effect of the extensional flow on the properties of oriented nanocomposite films for twist wrapping
2011
In this study, we examined the mechanical behavior of nanocomposite films based on polyethylene (PE) and pristine PE films. The films were prepared by film blowing and were then cold-drawn at low temperature. The experimental results show that cold drawing significantly enhanced the orientation; with increasing draw ratio (DR), the elastic modulus and tensile strength of the PE films strongly increased, particularly in the presence of the organoclay. To obtain polymeric films suitable for twist wrapping, the films must be sufficiently stiff so that no shrinkage or elastic recovery occur during or after twisting. The elongation at break and the yield strain sharply decreased with orientation…
Montmorilonīta-antociānu organokompleksi: fizikāli ķīmiskās īpašības un izmantošanas risinājumi
2020
Bakalaura darba ietvaros tika pētīta antociānu interkalācija montmorilonīta struktūrā un veikta iegūtā organokompleksa fizikāli ķīmisko īpašību izpēte inovatīvu un videi draudzīgu materiālu izstrādē. Pētījuma ietvaros izvēlēts rūpnieciski ražots māla minerāls- montmorilonīts, kas tika modificēts ar antociāniem no melnaugļu aroniju ogu (Aronia melanocarpa L.) vai vīnogu (Vitis vinifera) izspiednēm. Antociānu sorbcija uz māla minerāla tika pētīta atkarībā no sorbenta iesvara, sorbāta koncentrācijas, vides pH un temperatūras. Iegūto kompozītmateriālu īpašības tika raksturotas ar Furjē transformācijas infrasarkanās gaismas spektroskopijas (FTIS) un termogravimetrijas analīzes (TGA) metodēm. Ieg…
Mechanisms of irreversible aquaporin-10 inhibition by organogold compounds studied by combined biophysical methods and atomistic simulations
2021
Abstract The inhibition of glycerol permeation via human aquaporin-10 (hAQP10) by organometallic gold complexes has been studied by stopped-flow fluorescence spectroscopy, and its mechanism has been described using molecular modelling and atomistic simulations. The most effective hAQP10 inhibitors are cyclometalated Au(III) C^N compounds known to efficiently react with cysteine residues leading to the formation of irreversible C–S bonds. Functional assays also demonstrate the irreversibility of the binding to hAQP10 by the organometallic complexes. The obtained computational results by metadynamics show that the local arylation of Cys209 in hAQP10 by one of the gold inhibitors is mapped int…
Max Filke (1855-1911) i jego warsztat kompozytorski na przykładzie preludiów organowych ze zbioru Eduarda Stehlego
2020
Looking at the tradition and heritage of the Silesian land, it can be concluded that over the centuries it has become a culturally distinct European borderland formed by the influence of three mutually interpenetrating cultures: Polish, Czech and German, as well as different religions: Catholic and Protestant. All these factors have made the map of Silesia a peculiar mosaic of multicultural colors, thanks to which this area was marked by the unusually rich legacy of centuries-old activities of distinguished figures for whom the mentioned diversity was a source of creative inspiration. The nineteenth century became an extremely interesting historical moment. Europe was overwhelmed by the spr…