Search results for "in water"

showing 8 items of 18 documents

Sea level and climate forcing of the Sr isotope composition of late Miocene Mediterranean marine basins

2014

Sr isotope records from marginal marine basins track the mixing between seawater and local continental runoff, potentially recording the effects of sea level, tectonic, and climate forcing in marine fossils and sediments. Our 110 new Sr-87/Sr-86 analyses on oyster and foraminifera samples from six late Miocene stratigraphic sections in southern Turkey, Crete, and Sicily show that Sr-87/Sr-86 fell below global seawater values in the basins several million years before the Messinian Salinity Crisis, coinciding with tectonic uplift and basin shallowing. 87Sr/86Sr from more centrally located basins (away from the Mediterranean coast) drop below global seawater values only during the Messinian S…

Mediterranean climateSettore GEO/02 - Geologia Stratigrafica E SedimentologicaEvaporitelate MioceneMediterraneanStructural basinLate Miocenegroundwater residenceForaminiferaTectonic upliftGeochemistry and Petrologysea level changesSea levelLower Evaporitesbiologymediterranean groundwater residenceAmbientaleSettore GEO/01 - Paleontologia E Paleoecologiabiology.organism_classification87Sr/86SrSettore GEO/08 - Geochimica E VulcanologiaGroundwater effects on river and basin water geochemistry are likely importantGeophysicsOceanographygroundwater residence; sea level changes; late Miocene; lower evaporites; mediterranean; mediterranean groundwater residence; 87Sr/86SrSeawaterInstitut für GeowissenschaftenSr isotope excursions primarily correspond to sea level fall or basin upliftgroundwater residence; late Miocene; Lower Evaporites; Mediterranean; sea level changes; Geophysics; Geochemistry and PetrologyNegative Sr isotope excursions in Miocene Mediterranean marine sedimentGeologyGeochemistry, Geophysics, Geosystems
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What is the form of muscimol from fly agaric mushroom (Amanita muscaria) in water? An insight from NMR experiment supported by molecular modeling.

2020

ARTYKUŁ Z BADAŃ SPECJALNYCH

Models MolecularMagnetic Resonance SpectroscopyAmanita010402 general chemistry01 natural scienceschemistry.chemical_compoundReceptors GABAComputational chemistryMoleculeHumansGeneral Materials ScienceGABA-A Receptor Antagonistsindirect spin‐spin coupling constantsNMR in waterDensity Functional TheoryCarbon Isotopesbiology010405 organic chemistryAgaricmolecular modelingMuscimolChemical shiftWaterGeneral ChemistryCarbon-13 NMRbiology.organism_classification0104 chemical sciencesSolventnervous systemchemistryMuscimolGIAO NMRZwitterionProtonsAmanita muscariaMagnetic resonance in chemistry : MRCREFERENCES
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Case Studies of Macro-and Microplastics Pollution in Coastal Waters and Rivers: Is There a Solution With New Removal Technologies and Policy Actions?.

2020

This opinion paper on microplastics pollution has selected different aspects and case studies of micro and macro-plastic litter pollution in coastal waters, and rivers. We point out a discussion on this topic and ask ourselves if there is a solution to the global problem by developing new microplastics removal technologies as well as policy actions. The first two case studies are related with macroplastics marine litter in beaches, a third report describes a new simple sampling device for microplastics in coastal and nearshore areas, five case study assess microplastics pollution in worldwide coastal environments, sediments and catchments (India, Mexico, Australia, Europe and the Nordic Sea…

PollutionMicroplasticsEnvironmental EngineeringMarine litterMonitoringGeneral Chemical Engineeringmedia_common.quotation_subjectContaminants emergents en l'aiguaMicroorganismsGlobal problemAigua -- ContaminacióEnvironmental Science (miscellaneous)Sampling deviceOccurrenceEnvironmental protectionWastewater treatment plantsMarine debrisEnvironmental ChemistryMacrolcsh:TA170-171lcsh:Chemical engineeringWater pollutionEngineering (miscellaneous)media_commonEmerging contaminants in waterlcsh:TP155-156Advanced water treatmentslcsh:Environmental engineeringWater -- PollutionEnvironmental science
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Natural or synthetic nucleic acids encapsulated in a closed cavity of amphiphiles

2013

In this review some aspects of the interactions of organized structures of amphiphiles with natural or synthetic DNAs are briefly considered. In particular DNAs encapsulated in closed cavities of amphiphiles, specifically giant vesicles and water-in-oil droplets and reverse micelles, are dealt with. Two main applications of giant vesicles are reviewed in detail, namely their use as microreactors where reactions can be followed by optical microscopy on a single vesicle and in synthetic biology as protocell models or as potential semi-synthetic ‘‘living’’ cells. Water-in-oil droplets uses for rapid and relatively low-cost DNA amplification by PCR reaction are described as well as for in vitro…

ProtocellAqueous solutionChemistryGeneral Chemical EngineeringVesicleNanotechnologyGeneral ChemistrymicroreactorsMicellepolynucleotides in water-in-oil dropletsSynthetic biologyDNA model polynucleotides giant vesicles Reverse micellesPolynucleotideAmphiphileBiophysicsNucleic acidmicroreactors; polynucleotides in giant vesicles; polynucleotides in water-in-oil dropletspolynucleotides in giant vesiclesRSC Advances
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Influence of Formulation and Structure of an Oil-in-Water Emulsion on Flavor Release

1999

International audience

STRUCTUREChemistry[SDV]Life Sciences [q-bio]010401 analytical chemistry04 agricultural and veterinary sciences040401 food science01 natural sciences0104 chemical sciences[SDV] Life Sciences [q-bio]Oil in water0404 agricultural biotechnologyChemical engineeringEmulsionComputingMilieux_MISCELLANEOUSFlavor
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RUOLO DELL’ESERCIZIO FISICO NELLA QUALITÀ DI VITA DI SOGGETTI CON SCLEROSI MULTIPLA. ROLE OF EXERCISE IN THE QUALITY OF LIFE IN SUBJECTS WITH MULTIPL…

2012

La sclerosi multipla è una patologia neurodegenerativa cronica che ha un impatto considerevole sullo stato fisico, psicologico e sociale dei pazienti, influenzando negativamente la loro qualità di vita. Tra i fattori contribuenti ad una ridotta qualità di vita sono inclusi la presenza di dolore, spasmi, sindromi depressive, l’aumento della fatica e la riduzione della forza muscolare, mobilità ed autonomia nella deambulazione. Accanto alla medicina convenzionale, varie forme di medicina complementare ed alternativa, tra cui l’esercizio fisico, sono utilizzate dai soggetti con sclerosi multipla. Tuttavia, poche sono le prove scientifiche a sostegno della loro efficacia nel ridurre i sintomi d…

Settore M-EDF/02 - Metodi E Didattiche Delle Attivita' SportiveMultiple Sclerosis exercise quality of life aerobic exercise exercise in water deambulation depression.Sclerosi Multipla esercizio fisico qualità di vita allenamento aerobico esercizio in acqua deambulazione depressione.
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Rapid and eco-friendly synthesis of graphene oxide-silica nanohybrids

2014

The increasing interest in Graphene oxide (GO) is due to many issues: the presence of both sp2-conjugated atoms and oxygen-containing functional groups provides a strong hydrophilicity and the possibility to further functionalize it with other molecules (i.e. π-π interactions covalent attachment etc.) [1]. Furthermore since the GO is biocompatible and noncytotoxic many studies have been recently focused on the development of GO-based nanodevices for bioimaging DNA detection drug delivery. Due to their low cytotoxicity and large internal surface area silica nanoparticles have been taken into account as promising material for biolabeling and drug loading/delivery. Particular consideration has recently been demonstrated for GO-silica composites because of the potentialities for electrical applications their chemical inertia and stability toward ions exposure. The possibility to combine the extraordinary properties of GO and silica offers several advantages for the realization of nanoprobes for biological applications and of biosensor [12]. The strategy for the fabrication of GO-nanosilica nanohybrids can be schematized as follows: (i) synthesis of GO by oxidizing graphite powder with the method described by Marcano et al. [3] (ii) Preparation of oxygen-loaded silica nanoparticles by thermal treatments in controlled atmosphere in order to induce high NIR emission at 1272 nm from high purity silica nanoparticles. (iii) preparation of GrO-silica nanohybrid films via rapid solvent casting in water. The nanohybrids were tested by XPS FTIR Raman analysis UV photoluminescence analysis TGA Zeta potential measurements electrical tests AFM and SEM. Several nanohybrids were prepared by combining two different typologies of GO and two different samples of silica.
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Oil-In-Water Microemulsion Liquid Chromatography

2018

Oil-in-water microemulsions (O/W MEs) are obtained spontaneously by mixing two immiscible liquids (water and oil) in the presence of a surfactant. A co-surfactant is also often needed for ME stabil...

animal structuresChromatographyChemistry010401 analytical chemistryMixing (process engineering)Filtration and Separation02 engineering and technology021001 nanoscience & nanotechnology01 natural sciences0104 chemical sciencesAnalytical ChemistryOil in waterPulmonary surfactantMicroemulsion0210 nano-technologySeparation & Purification Reviews
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