Search results for " SM"

showing 10 items of 2185 documents

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
researchProduct

La unidad del pensamiento de Adam Smith como marco de comprensión de su propuesta jurídica. Una reflexión desde América latina

2019

La unidad del pensamiento de Adam Smith como marco de comprensión de su propuesta jurídica. Una reflexión desde América Latina Por Juan Camilo Salas Cardona Resumen Las inmensas riquezas que poseen América Latina y El Caribe, en lo que se refiere a sus gentes, su cultura, su biodiversidad, belleza y variedad geográfica, así como a los recursos de toda especie que provee la tierra, contrastan con la pobreza, miseria, violencia, corrupción, crisis económica, desempleo e inestabilidad política en que vive buena parte la región, desde el mal llamado descubrimiento de América, también denominado “encuentro de dos mundos”, ocurrido hace un poco más de cinco siglos. Estas circunstancias, que, con …

:ÉTICA [UNESCO]éticacrisis del derechoética y derechofilosofía del derecho:CIENCIAS JURÍDICAS Y DERECHO [UNESCO]renovación del derechoUNESCO::CIENCIAS JURÍDICAS Y DERECHOAdam Smithderecho en América latinaderecho en la ilustración escocesaUNESCO::FILOSOFÍAUNESCO::ÉTICA:FILOSOFÍA [UNESCO]ilustración escocesaderechoeficacia del derecho
researchProduct

Chemical Compositions and Antioxidant Activities of Essential Oils, and Their Combinations, Obtained from Flavedo By-Product of Seven Cultivars of Si…

2022

In this work, seven Citrus aurantium essential oils (EOs) derived from flavedo of cultivars ‘Canaliculata’, ‘Consolei’, ‘Crispifolia’, ‘Fasciata’, ‘Foetifera’, ‘Listata’, and ‘Bizzaria’ were investigated. EOs were also combined in 1:1 (v/v) ratio to identify possible synergism or antagonism of actions. GC-MS analysis was done to investigate Eos’ phytochemical profiles. The antioxidant activity was studied by using a multi-target approach based on FRAP, DPPH, ABTS, and β-carotene bleaching tests. A great difference was observed in EOs’ phytochemical profiles. d-limonene (33.35–89.17%) w…

<i>Citrus aurantium</i>; GC-MS analysis; essential oil combinations; <span style="font-variant: small-caps">d</span>-limonene; PCA analysis; global antioxidant scoreOrganic ChemistryPharmaceutical ScienceGC-MS analysid-limoneneAnalytical Chemistryglobal antioxidant scoreChemistry (miscellaneous)Drug Discoveryessential oil combinationMolecular MedicinePCA analysiPhysical and Theoretical ChemistryCitrus aurantiumMolecules
researchProduct

Anrī Matisa kolāžu mākslinieciskās izteiksmes līdzekļu izmantošanas iespējas vizuālās mākslas nodarbībās bērniem ar vidēji smagiem garīgās attīstības…

2017

Diplomdarba „Anrī Matisa kolāžu mākslinieciskās izteiksmes līdzekļu izmantošanas iespējas vizuālās mākslas nodarbībās bērniem ar vidēji smagiem garīgās attīstības traucējumiem” galvenais mērķis: ir audzēkņu ar vidēji smagiem garīgās attīstības traucējumiem iepazīstināšana ar Anrī Matisa kolāžu mākslinieciskiem līdzekļiem un to izmantošanas iespējas vizuālās mākslas nodarbībās. Lai mērķi sasniegtu tika izvirzīti vairāki uzdevumi, kuru ietvaros autore pēta, analizē un apraksta A. Matisa biogrāfiju un daiļradi, veic speciālās izglītības normatīvo dokumentu izpēti, apraksta audzēkņu ar vidēji smagiem garīgās attīstības traucējumiem vizuālās māksla stundu specifiku, izstrādā un pedagoģiskā praks…

A. MatissPedagoģijakrāsabērni ar vidēji smagiem garīgās attīstības traucējumiemkolāža
researchProduct

Positive effects of an extracellular matrix hydrogel on rat anterior cruciate ligament fibroblast proliferation and collagen mRNA expression

2015

Summary Background/Objective We have previously shown that an extracellular matrix (ECM) bioscaffold derived from porcine small intestine submucosa (SIS) enhanced the healing of a gap injury of the medial collateral ligament as well as the central third defect of the patellar tendon. With the addition of a hydrogel form of SIS, we found that a transected goat anterior cruciate ligament (ACL) could also be healed. The result begs the research question of whether SIS hydrogel has positive effects on ACL fibroblasts (ACLFs) and thus facilitates ACL healing. Methods In the study, ECM-SIS hydrogel was fabricated from the digestion of decellularised and sterilised sheets of SIS derived from αGal-…

ACL fibroblasts; Fibre morphology; Growth factors; Hydrogel; Porcine small intestine submucosa; Orthopedics and Sports Medicinelcsh:Diseases of the musculoskeletal systemfibre morphologyAnterior cruciate ligamentExtracellular matrixchemistry.chemical_compoundgrowth factorsmedicineOrthopedics and Sports MedicineBovine serum albuminFibroblastporcine small intestine submucosabiologyCell growthAnatomyGrowth factorACL fibroblastsACL fibroblastMolecular biologymedicine.anatomical_structurechemistrySelf-healing hydrogelsbiology.proteinOriginal Articlelcsh:RC925-935hydrogelBromodeoxyuridineExplant cultureJournal of Orthopaedic Translation
researchProduct

Statins and the squalene synthase inhibitor zaragozic acid stimulate the non-amyloidogenic pathway of amyloid-beta protein precursor processing by su…

2010

Cholesterol-lowering drugs such as statins influence the proteolytic processing of the amyloid-beta protein precursor (AbetaPP) and are reported to stimulate the activity of alpha-secretase, the major preventive secretase of Alzheimer's disease. Statins can increase the alpha-secretase activity by their cholesterol-lowering properties as well as by impairment of isoprenoids synthesis. In the present study, we elucidate the contribution of these pathways in alpha-secretase activation. We demonstrate that zaragozic acid, a potent inhibitor of squalene synthase which blocks cholesterol synthesis but allows synthesis of isoprenoids, also stimulates alpha-secretase activity. Treatment of human n…

ADAM10Blotting Westernchemistry.chemical_compoundSqualeneADAM10 ProteinAmyloid beta-Protein PrecursorCell Line TumormedicineHumansLovastatinRNA Small InterferingProtein precursorLuciferasesLipid raftNeuronsbiologyATP synthaseChemistryReverse Transcriptase Polymerase Chain ReactionTerpenesGeneral NeuroscienceAnticholesteremic AgentsCell MembraneMembrane ProteinsTricarboxylic AcidsZaragozic acidGeneral MedicineBridged Bicyclo Compounds HeterocyclicEnzyme ActivationPsychiatry and Mental healthClinical PsychologyADAM ProteinsCholesterolFarnesyl-Diphosphate FarnesyltransferaseBiochemistrybiology.proteinlipids (amino acids peptides and proteins)LovastatinGeriatrics and GerontologyAmyloid Precursor Protein SecretasesHydroxymethylglutaryl-CoA Reductase InhibitorsAmyloid precursor protein secretasemedicine.drugJournal of Alzheimer's disease : JAD
researchProduct

Metabolic signatures across the full spectrum of non-alcoholic fatty liver disease.

2022

Funder: European Commission

ALTtype 2 diabetes mellitusROC receiving operator characteristicaspartate aminotransferaseHSDLDL low-density lipoproteinUHPLC ultrahigh-performance liquid chromatographyROCHCCNon-alcoholic steatohepatitisGCPCANASHGastroenterology2-HB 2-hydroxybutanoic acid; 3-HB 3-hydroxybutanoic acid; ALT alanine aminotransferase; AST aspartate aminotransferase; CE cholesterol ester; Cer ceramide; FFA free fatty acid; FLIP Fatty Liver Inhibition of Progression; Fibrosis; GC gas chromatography; HCC hepatocellular carcinoma; HSD honest significant difference; LC lipid cluster; LDL low-density lipoprotein; LM lipid and metabolite; LMC lipid metabolite and clinical variable; LPC lysophosphatidylcholine; Lipidomics; Mass spectrometry; Metabolomics; NAFL non-alcoholic fatty liver; NAFLD non-alcoholic fatty liver disease; NAS NASH activity score; NASH non-alcoholic steatohepatitis; NIDDK NASH-CRN National Institute of Digestive Diseases and Kidney NASH Clinical Research Network; NRR non-rejection rate; Non-alcoholic steatohepatitis; PC(O) ether PC; PC phosphatidylcholine; PCA principal component analysis; PE phosphatidylethanolamine; QTOFMS quadrupole-time-of-flight mass spectrometry; ROC receiving operator characteristic; SAF steatosis activity and fibrosis; SM sphingomyelin; T2DM type 2 diabetes mellitus; TG triacylglycerol; UHPLC ultrahigh-performance liquid chromatographySAFSAF steatosis activity and fibrosisLM lipid and metabolitehonest significant differenceHSD honest significant differenceTG triacylglycerolnon-rejection ratecholesterol esterPCPEGC gas chromatographyfree fatty acidFLIPNASH non-alcoholic steatohepatitisNIDDK NASH-CRN National Institute of Digestive Diseases and Kidney NASH Clinical Research NetworkBIOMARKERST2DMPE phosphatidylethanolamineLDLlipidNAFLDFFA free fatty acid2-HBMetabolomicsNAFL non-alcoholic fatty liverLMCphosphatidylcholineScience & TechnologySM sphingomyelinGastroenterology & HepatologyMass spectrometryactivitynutritional and metabolic diseasesT2DM type 2 diabetes mellitusACIDSreceiving operator characteristicdigestive system diseasesquadrupole-time-of-flight mass spectrometryLC lipid clusterlow-density lipoproteinNAS2-HB 2-hydroxybutanoic acidNAS NASH activity scoreQTOFMSether PCNRRSCORING SYSTEMprincipal component analysisgas chromatographyLC2-hydroxybutanoic acidPROGRESSIONAST aspartate aminotransferaseLMPC phosphatidylcholinePC(O)MARKERSUHPLCsteatosisTOOLImmunology and AllergyINSULIN-RESISTANCECerSMFatty Liver Inhibition of Progressionhepatocellular carcinoma2-HB 2-hydroxybutanoic acid NIDDK NASH-CRN National Institute of Digestive Diseases and Kidney NASH Clinical Research Network NRR non-rejection rate Non-alcoholic steatohepatitis PC(O) ether PC PC phosphatidylcholine PCA principal component analysis PE phosphatidylethanolamine QTOFMS quadrupole-time-of-flight mass spectrometry ROC receiving operator characteristic SAF steatosis activity and fibrosis SM T2DM type 2 diabetes mellitus TG triacylglycerol UHPLC ultrahigh-performance liquid chromatographyultrahigh-performance liquid chromatographyCELPC3-HBNAFLnon-alcoholic fatty liverTGtriacylglycerolNRR non-rejection rateLife Sciences & BiomedicineNAFLD non-alcoholic fatty liver diseaseFLIP Fatty Liver Inhibition of Progressionalanine aminotransferasemetaboliteCer ceramideCE cholesterol estersphingomyelinlysophosphatidylcholineand fibrosisALT alanine aminotransferaseInternal MedicineceramideNational Institute of Digestive Diseases and Kidney NASH Clinical Research NetworkAST3-HB 3-hydroxybutanoic acidQTOFMS quadrupole-time-of-flight mass spectrometryPCA principal component analysisLPC lysophosphatidylcholineHepatologynon-alcoholic fatty liver diseaseand clinical variablePC(O) ether PC3-hydroxybutanoic acidFibrosisNASH activity scoreNIDDK NASH-CRNlipid clusterlipid and metabolitephosphatidylethanolamineLipidomicsLMC lipid metabolite and clinical variableFFAHCC hepatocellular carcinomaJHEP reports : innovation in hepatology
researchProduct

Cannabinoid type 1 receptor modulates intestinal propulsion by an attenuation of intestinal motor responses within the myenteric part of the peristal…

2007

Cannabinoid-1 (CB1) receptor activation affects gastrointestinal propulsion in vivo. It was our aim to further characterize the involved myenteric mechanisms in vivo and in vitro. In CB1(-/-) mice and wild-type littermates we performed in vivo transit experiments by charcoal feeding and in vitro electrophysiological recordings in mouse small intestinal smooth muscle. Ascending neuronal contraction (ANC) following electrical field stimulation was studied in rat ileum in a partitioned organ bath separating the aboral stimulation site from the oral recording site. The knockout animals displayed an accelerated upper gastrointestinal transit compared to control animals. The CB1 receptor antagoni…

AM251Malemedicine.medical_specialtyCannabinoid receptorPhysiologyPolyunsaturated Alkamidesmedicine.medical_treatmentNeuromuscular JunctionMotilityStimulationArachidonic AcidsBiologyNeuromuscular junctionMembrane PotentialsMiceOrgan Culture TechniquesPiperidinesReceptor Cannabinoid CB1Internal medicineCannabinoid Receptor ModulatorsReflexmedicineAnimalsRNA MessengerIntestinal MucosaRats WistarReceptorMice KnockoutMyoelectric Complex MigratingEndocrine and Autonomic SystemsReverse Transcriptase Polymerase Chain ReactionGastroenterologyMuscle SmoothEndocannabinoid systemElectric StimulationRatsIntestinesEndocrinologymedicine.anatomical_structurePyrazolesPeristalsisCannabinoidmedicine.drugEndocannabinoidsNeurogastroenterology and motility : the official journal of the European Gastrointestinal Motility Society
researchProduct

Laparoscopic approach in abdominal emergencies: a 5-year experience at a single center.

2012

Background. Laparoscopy is ever more common in both elective and emergency surgery. In fact, in abdominal emergencies it enables the resolution of preoperative diagnostic doubts as well as treatment of the underlying disease. We present a retrospective study of the results of a 5-year experience at a single center. Patients and methods. Between September 2006 and August 2011, 961 patients were treated via laparoscopy, including 486 emergency cases (15 gastroduodenal perforation; 165 acute cholecystitis; 255 acute appendicitis; 15 pelvic inflammatory disease and non-specific abdominal pain [NSAP]; 36 small bowel obstruction). All procedures were conducted by a team trained in laparoscopic su…

Abdomen AcuteMaleColonCholecystitis AcuteAppendicitisSettore MED/18 - Chirurgia GeneraleTreatment Outcomeabdominal emergncies.Duodenal UlcerIntestine SmallPeptic Ulcer PerforationHumansFemaleLaparoscopyStomach UlcerGenital Diseases FemaleDigestive System Surgical ProceduresIntestinal ObstructionRetrospective Studies
researchProduct

Partially competitive inhibition of intestinal baclofen absorption by beta-alanine, a nonessential dietary aminoacid.

1991

In situ intestinal absorption of baclofen in the rat in the presence of beta-alanine has been investigated. Through the perfusion of 0.50 mM baclofen solutions containing variable concentrations of the aminoacid (from 5 to 100 mM), a partially competitive inhibition of baclofen absorption was characterized: absorption rate pseudoconstants of the spasmolytic drug decrease as beta-alanine concentration increases, until a limiting value is obtained (36.8 per cent of that found for baclofen alone). A computer method was developed in order to calculate parameters governing baclofen absorption in the presence of beta-aminoacid, with the following results: Vm = 11.22 mM h-1; Km = 7.42 mM; Ki = 2.4…

Absorption (pharmacology)MaleBaclofenStereochemistryPharmaceutical Sciencebeta-AlanineMichaelis–Menten kineticsIntestinal absorptionchemistry.chemical_compoundNon-competitive inhibitionPharmacokineticsIntestine SmallAnimalsPharmacology (medical)Drug InteractionsPharmacologyChromatographyWaterRats Inbred StrainsGeneral MedicineRatsDietary aminoacidBaclofenchemistryIntestinal Absorptionbeta-AlanineBiopharmaceuticsdrug disposition
researchProduct