Search results for "Diss"

showing 10 items of 2500 documents

Solid microcrystalline dispersion films as a new strategy to improve the dissolution rate of poorly water soluble drugs: A case study using olanzapine

2016

In this study, we evaluate the dissolution rate enhancement of solid microcrystalline dispersion (SMD) films of olanzapine (OLZ) formulated with four water-soluble polymers namely poly(N-vinylpyrrolidone) (PVP), poloxamer 188 (P188), poloxamer 407 (P407) and Soluplus(®) (SLP). Prepared formulations were characterised to determine particle size, morphology, hydrogen bonding interactions, thermal characteristics as well as in vitro dissolution studies conducted under sink conditions (pH 6.8). Particle size of OLZ in all formulations ranged between 42 and 58μm. Attenuated Total Reflectance Fourier Transform Infrared spectroscopy (ATR-FTIR), Differential Scanning Calorimetry (DSC) and Hot-Stage…

3003PVPDrug CompoundingSolid microcrystalline dispersionPharmaceutical SciencePoloxamer02 engineering and technologyPolyethylene Glycol030226 pharmacology & pharmacyPolyethylene GlycolsBenzodiazepines03 medical and health sciences0302 clinical medicineDifferential scanning calorimetrymedicineParticle SizePyrrolidinoneSolubilityFourier transform infrared spectroscopyPolymerPolyvinylDissolutionPharmaceutical filmBenzodiazepineChromatographyCrystallineChemistryHydrogen BondingPoloxamer021001 nanoscience & nanotechnologyPyrrolidinonesDrug LiberationMicrocrystallineSolubilityChemical engineeringOlanzapinePoloxamer 407PolyvinylsParticle sizeCrystallization0210 nano-technologymedicine.drugInternational Journal of Pharmaceutics
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Real-time simulation of tissue deformation for the nasal endoscopy simulator (NES).

1999

Endonasal sinus surgery requires a great amount of training before it can be adequately performed. The complicated anatomy involved, the proximity of relevant structures, and the variability of the anatomy due to inborn or iatrogenic variations make several complications possible. Today, cadaver dissections are the "gold standard" for surgical training. To overcome the drawbacks of traditional training methods, the Fraunhofer Institute for Computer Graphics is currently developing a highly interactive medical simulation system for nasal endoscopy and endonasal sinus surgery, in cooperation with the Mainz University Hospital. For the simulation of a rhinoscopic procedure, not only are the re…

3D interactionmedicine.medical_specialtyFinite Element AnalysisNoseComputer graphicsUser-Computer InterfaceReal-time simulationCadaverParanasal SinusesCadaverComputer GraphicsMedicineHumansComputer SimulationSimulationEndoscopesTissue deformationNasal endoscopybusiness.industryMedical simulationDissectionEndoscopyUniversity hospitalSurgical InstrumentsComputer Science ApplicationsGeneral SurgerySurgeryClinical CompetencebusinessFamily PracticeComputer aided surgery : official journal of the International Society for Computer Aided Surgery
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Surface charges at the CaF2/water interface allow very fast intermolecular vibrational-energy transfer

2020

Abstract We investigate the dynamics of water in contact with solid calcium fluoride, where at low pH, localized charges can develop upon fluorite dissolution. We use 2D surface‐specific vibrational spectroscopy to quantify the heterogeneity of the interfacial water (D2O) molecules and provide information about the sub‐picosecond vibrational‐energy‐relaxation dynamics at the buried solid/liquid interface. We find that strongly H‐bonded OD groups, with a vibrational frequency below 2500 cm−1, display very rapid spectral diffusion and vibrational relaxation; for weakly H‐bonded OD groups, above 2500 cm−1, the dynamics slows down substantially. Atomistic simulations based on electronic‐structu…

540 Chemistry and allied sciencesMaterials science530 Physics2D sum-frequency generation010402 general chemistry01 natural sciencesCatalysisVibrational energy relaxationSurface chargeDiffusion (business)DissolutionResearch Articlesenergy transfer010405 organic chemistryIntermolecular forceGeneral ChemistryInterfacial Chemistryab-initio molecular dynamics530 Physik0104 chemical sciencesDipoleSolvation shellChemical physicsMolecular vibration540 Chemiesolid/liquid interfacesResearch Article
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Thermomineral waters of Greece: geochemical characterization

2020

75 °C). In terms of pH most results vary from 5.5 to 823 °C) ii) warm (23 40 °C) iii) thermal (40 75 °C) and iv) hyperthermal (&gtfew springs show either very low pH (&lt10) proposing serpentinization processes. Regarding TDS concentrations collected waters can be subdivided into low salinity (up to 1.5 g/L) brackish (up to 20 g/L) and saline (up to 43 g/L). The medium high salinities can be justified by mixing with sea water and/or strong waterrock interaction processes. Isotope composition of O and H ranges from 12.7 to +2.7 ‰ SMOW and from 91 to +12 ‰ SMOW respectively and is generally comprised between the Global Meteoric Water Line and the East Mediterranean Meteoric Water Line. Only few water samples show a positive shift for δ18O possibly related to high temperature waterrock interaction processes. Carbon dioxide (18 997000 μmol/mol) or N2 (1100 989000 μmol/mol) or CH4 (&ltMany geothermal areas of Greece are located in regions affected by Miocene or Quaternary volcanism and in continental basins characterised by elevated heat flow. Moreover the majority of them is found along the coast as well as in islands of the Aegean Sea and thus thermal water is often brackish to saline due to marine intrusion into costal aquifer. In the present study almost 300 thermal and cold mineral water samples were collected along the Hellenic territory with their physicochemical parameters (temperature pH electrical conductivity and Eh) and the amount of bicarbonates (titration with 0.1N HCl) being determined in situ. Additionally gases found either in free or dissolved phase were sampled. Both water and gas samples were analysed at the INGVPa laboratories for major ions (Ion Chromatography) silica (Inductively Coupled Plasma Optical Emission Spectrometry) chemical composition of free and dissolved gases (Gas Chromatography) water isotopes (O and H) and carbon and helium isotopes of free and dissolved gases (Mass Spectrometry). The temperature of the investigated waters ranges from 6.5 to 98°C pH from 1.96 to 11.98 whilst Total Dissolved Solids (TDS) from 0.06 to 43 g/L. Based on the temperature parameter waters can be divided into four groups: i) cold (&lt0.5 913000 μmol/mol) are the prevailing gas species found in the studied sites. The δ13CCO2 values ranged from 20.1 to +8.5 ‰ whilst the isotope ratio of He from 0.21 to 6.71 R/RA.4) suggesting interaction with H2Srich gases or very high pH values (&gtSettore GEO/08 - Geochimica E Vulcanologia
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Fiscality of couples in fact

2019

[ES] Las parejas de hecho son una unión alternativa al matrimonio y, como tal, el ordenamiento les dedica un régimen jurídico. El presente estudio trata sobre la fiscalidad que rodea a estas uniones partiendo siempre de su situación patrimonial y los acuerdos alcanzados entre los convivientes. Se analiza el encaje dentro del IRPF de la pareja de hecho y la aplicación de las circunstancias personales y familiares a los convivientes. Asimismo, se tratará la aportación de éstos a la comunidad de bienes formada por ambos y la adquisición de bienes una vez constituida la misma. Todo ello desde la aplicación de los impuestos que gravan la transmisión o adquisición de bienes, ya sea de forma onero…

:CIENCIAS JURÍDICAS [UNESCO]Couples in factCommunity of goodsUNESCO::CIENCIAS JURÍDICASDisolución de la comunidadDissolution of the communityPareja de hechoECONOMIA FINANCIERA Y CONTABILIDADMínimo por descendienteComunidad de bienesMinimum by descendant
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Jurisdiction by connection and proper administration of justice under eu regulations 1103/2016 and 1104/2016

2021

The author analyses the rules of jurisdiction by connection set by Articles 4 and 5 of Regulations No. 1103 and 1104 of 2016 in matters of property regimes of transnational couples, taking into account the objective of proper administration of justice pursued within EU Civil judicial cooperation. The Twin Regulations provide for appropriate procedural tools to facilitate concentration of jurisdiction before the courts of the same Member State, establishing an important role for the choice-of-court agreement, especially where property regime issues arise in connection with a matrimonial case or a partnership dissolution case. As we wait for the implementation of these rules by national and E…

:CIENCIAS JURÍDICAS [UNESCO]related actions 148 163establishing an important role for the choice-of-court agreementley de sucesiones2386-4567 22661 Actualidad jurídica iberoamericana 587897 2021 15 8113554 Jurisdiction by connection and proper administration of justice under eu regulations 1103/2016 and 1104/2016 Pía Gasperiniproperty regimesJurisdictionfamily lawtaking into account the objective of proper administration of justice pursued within EU Civil judicial cooperation. The Twin Regulations provide for appropriate procedural tools to facilitate concentration of jurisdiction before the courts of the same Member StateUNESCO::CIENCIAS JURÍDICASMaría The author analyses the rules of jurisdiction by connection set by Articles 4 and 5 of Regulations No. 1103 and 1104 of 2016 in matters of property regimes of transnational couplesregímenes económicosthe author also explores some possible drawbacks they may present. Competencialey de familiaespecially where property regime issues arise in connection with a matrimonial case or a partnership dissolution case. As we wait for the implementation of these rules by national and European courtsacciones relacionadas.succession law
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El disseny físic de les séquies valencians durant els segles XVI-XVIII

2017

:GEOGRAFÍA [UNESCO]Tomás 79 1070210-086X 364 Cuadernos de geografía 479579 2017 99 6296527 El disseny físic de les séquies valencians durant els segles XVI-XVIII Peris AlbentosaUNESCO::GEOGRAFÍA
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Heliodor, Etiòpiques VI 14-15: un cas únic de necromància a la novel·la grega antiga

2014

La tradició literària que hi ha al darrere de la novel·la d'Heliodor Teàgenes i Cariclea és abundant en obres i en gèneres, però especialment deutora de l'Odissea d'Homer. L'únic passatge de necromància de la novel·la grega antiga també presenta, i de manera molt evident i curiosa, aquesta intertextualitat, oferint importants punts en contacte amb la nékyia del cant XI de l'obra homèrica. Així mateix, remet als ritus egipcis que descriu Heròdot al llibre II de la seua Història i al d'Els perses d'Èsquil per convocar el fantasma de Darios. Es tracta d'un passatge singular amb motius de la literatura grega precedent. The literary tradition which underlies to the Heliodorus' roman Theagenes an…

:LINGÜÍSTICA [UNESCO]OdisseaHeliodorintertextualitatUNESCO::LINGÜÍSTICAnecromància
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La Repubblica di Platone fra totalitarismo, dissimulazione e utopia

2014

:LINGÜÍSTICA [UNESCO]PlatoneutopiaFilologíasFilologías clásicas y antiguasPlatone Repubblica etica politica totalitarismo dissimulazione utopiatotalitarismodissimulazionepoliticaRepubblicaeticaUNESCO::LINGÜÍSTICA
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Microbiology and atmospheric processes: research challenges concerning the impact of airborne micro-organisms on the atmosphere and climate

2011

 Cet article a fait l'objet d'une discussion dans "Morris, C. E., Sands, D. C., Bardin, M., Jaenicke, R., Vogel, B., Leyronas, C., Ariya, P. A., and Psenner, R.: Microbiology and atmospheric processes: an upcoming era of research on bio-meteorology, Biogeosciences Discuss., 5, 191-212, doi:10.5194/bgd-5-191-2008, 2008."; International audience; For the past 200 years, the field of aerobiology has explored the abundance, diversity, survival and transport of micro-organisms in the atmosphere. Micro-organisms have been explored as passive and severely stressed riders of atmospheric transport systems. Recently, an interest in the active roles of these micro-organisms has emerged along with prop…

AIRBORNE DISSEMINATION010504 meteorology & atmospheric sciencesMeteorologyAEROBIOLOGY;BIOLOGICAL AEROSOLS;BIO-METEOROLOGY;TRANSPORT;AIRBORNE DISSEMINATION;BIOLOGICAL PROPERTIES;ATMOSPHERIC PROCESSES;BIOSPHERE;CLIMATE CHANGEEarth scienceBiomeCLIMATE CHANGEBiological particleslcsh:Lifemodélisation spatialeBIOSPHERE010501 environmental sciencesBiologyAtmosphere (architecture and spatial design)01 natural sciencesBIO-METEOROLOGYATMOSPHERIC PROCESSESBIOLOGICAL AEROSOLSlcsh:QH540-549.5AEROBIOLOGYddc:550microbiologieEcology Evolution Behavior and Systematics0105 earth and related environmental sciencesEarth-Surface Processeschangement climatiquemicroorganismeBIOLOGICAL PROPERTIESclimatlcsh:QE1-996.5microorganisme aerienRadiative forcingTRANSPORT[SDV.BBM.BC]Life Sciences [q-bio]/Biochemistry Molecular Biology/Biomolecules [q-bio.BM]lcsh:GeologyEarth sciencesatmosphèrelcsh:QH501-53113. Climate actionAtmospheric chemistrylcsh:EcologyMetabolic activityBiogeosciences
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