Search results for " Macro"

showing 10 items of 522 documents

Química de coordinación de macrociclos con unidades 1H-pirazol

2016

Esta tesis doctoral se ha realizado dentro del campo de estudio de la química supramolecular y se ha basado en la síntesis de receptores macrocíclicos con unidades 1H-pirazol. Estos receptores pueden formar complejos de coordinación con cationes metálicos y complejos aniónicos con aniones inorgánicos de interés medioambiental mediante la formación de enlaces de hidrógeno intermoleculares. Los objetivos planteados para la realización de esta tesis doctoral son: - Síntesis y caracterización de macrocíclicos con unidades 1H-pirazol L1-L7. - Estudio de los receptores fluorescentes L1 y L2 con cationes de metales de transición. -Estudio de la interacción del receptor L3 con aniones de interés me…

complejos aniónicosquímica macrocíclicaquímica inorgánicaquímica de coordinaciónpoliaminasUNESCO::QUÍMICAquímica supramolecular:CIENCIAS TECNOLÓGICAS::Ingeniería y tecnología químicas ::Síntesis química [UNESCO]UNESCO::CIENCIAS TECNOLÓGICAS::Ingeniería y tecnología químicas ::Síntesis químicapirazolcomplejos metálicos:QUÍMICA [UNESCO]
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Didáctica de las ciencias experimentales y sociales

2005

Resumen tomado del autor. Resumen también en inglés Tanto por las Naciones Unidas como por la Comisión Europea (COM, 1997) se insta al estudio, conservación y mejora de los sistemas acuáticos. En la Península Ibérica y hasta la fecha, los índices utilizados habitualmente para evaluar y determinar la calidad del agua basados en los macroinvertebrados tienen una aplicación restringida a los ríos, ya que, en los demás ecosistemas acuáticos (lagos, lagunas, humedades, etc.) el comportamiento de dichos índices parece que no aporta conclusiones fiables. Con el nuevo índice ecológico presentado en este trabajo 'Indice del Modo de Nutrición', se pretende evaluar la calidad de la estructura trófica …

ecologíaíndiceenseñanza secundariaEvaluación de la calidad de los ecosistemas acuáticos a partir del modo de nutrición (IMN) de sus macroinvertebrados. Una adaptación para la educación secundaria Artículocalidad de la educación:PEDAGOGÍA [UNESCO]biologíacalidad de la enseñanzaUNESCO::PEDAGOGÍAevaluación
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Un curs d'Introducció a l'economia

2012

Un curs d'Introducció a l'economia Material docent corregit pel Servei de Política Lingüística. Bloc I. Conceptes bàsics i microeconomia Tema 1. Principis bàsics d’economia Tema 2. La demanda i l’oferta Tema 3. L’elasticitat i aplicacions Tema 4. L’oferta, la demanda i les polítiques del govern Tema 5. Els mercats i el benestar Tema 6. Introducció a la funció de producció i els mercats de factors. Bloc II. Macroeconomia Tema 7. Introducció. Conceptes bàsics de comptabilitat nacional Tema 8. Els determinants de la producció agregada a llarg termini Tema 9. Renda i despesa: l’estalvi, la inversió i els fluxos financers Tema 10. Diner i preus a llarg termini El document forma part dels materia…

economia ; microeconomia ; macroeconomiaUNESCO::CIENCIAS ECONÓMICAS
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Exploring the Simultaneous Effect of Total Ion Concentration and K:Ca:Mg Ratio of the Nutrient Solution on the Growth and Nutritional Value of Hydrop…

2022

Nutrient-efficient plants and agricultural systems could tackle issues resulting from conventional agriculture. Spiny chicory (Cichorium spinosum L.), a very adaptive, wild edible vegetable, is gaining commercial interest as a functional food. Floating-raft hydroponics is a method commonly used for the commercial cultivation of leafy vegetables due to numerous advantages compared to soil cultivation. In this paper, the simultaneous effects of different potassium, calcium and magnesium ratios and different electrical conductivity (EC) levels on the growth and mineral composition of hydroponically grown C. spinosum were investigated. Four nutrient solutions (NS) were compared, two NS with low…

electrical conductivitystamnagathihydroponics; stamnagathi; floating; macrocation ratio; electrical conductivitymacrocation ratiohydroponicAgronomy and Crop SciencefloatingAgronomy
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Mechanisms involved in lipid accumulation and apoptosis induced by 1-nitropyrene in Hepa1c1c7 cells

2011

International audience; 1-Nitropyrene (1-NP) is a nitro-polycyclic aromatic hydrocarbon (nitro-PAH) present in diesel exhaust and bound to particular matter in urban air. We show that 1-NP and the referent PAH benzo(a)pyrene (BP) induce apoptosis and a lipid accumulation dependent on cytochrome P450 1A1-metabolites in mouse hepatoma cells, whereas 1-amino-pyrene had no effect. The caspase inhibitor, N-benzyloxycarbonyl-Val-Ala-Asp(O-Me) fluoromethyl ketone (Z-VAD-fmk), inhibits 1-NP-induced apoptosis, but failed to alter 1-NP-triggered lipid accumulation determined by Nile red staining. We further show that cholesterol and fatty acid contents are modified after nitro-PAH exposure and that 1…

endoplasmic-reticulum stressMESH: PyrenesHepatoma cellsliver-cellsactivated protein-kinaseApoptosisAMP-Activated Protein KinasesToxicologyMESH: Liver Neoplasms ExperimentalMicechemistry.chemical_compoundMESH: CholesterolLiver Neoplasms ExperimentalMESH: AnimalsMESH: AMP-Activated Protein KinasesStearoyl-CoA desaturase 1CaspaseMESH: Lipid Metabolismchemistry.chemical_classificationhuman macrophages0303 health sciencesPyrenesbiology8-tetrachlorodibenzo-p-dioxin tcdd030302 biochemistry & molecular biologyGeneral Medicineinhibition[SDV.BBM.BC]Life Sciences [q-bio]/Biochemistry Molecular Biology/Biomolecules [q-bio.BM]CholesterolBiochemistry[SDV.TOX]Life Sciences [q-bio]/ToxicologyCaspaseslipids (amino acids peptides and proteins)stearoyl-coaStearoyl-CoA DesaturaseMESH: Cell Line Tumor[SDV.BC]Life Sciences [q-bio]/Cellular Biology03 medical and health sciencesMESH: Benzo(a)pyreneCell Line Tumor1-NitropyreneBenzo(a)pyreneAnimalsFatty acidsProtein kinase AMESH: Mice030304 developmental biologyaromatic-hydrocarbonsMESH: CaspasesCholesterolMESH: Apoptosisc-srcFatty acidAMPKCytochrome P450Lipid MetabolismMolecular biologychemistryApoptosisMESH: Stearoyl-CoA Desaturasebiology.proteinStearoyl-CoA desaturase-1desaturaseToxicology Letters
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STOP 15: Morphology and internal structure of a ribbed moraine and drumlin remnant in the environs of Baldone, Central Latvian Lowland

2014

geographyCentrāllatvijas zemienegeography.geographical_feature_categoryDrumlin:NATURAL SCIENCES::Earth sciences::Exogenous earth sciences::Sedimentology [Research Subject Categories]LatvianMorphology (biology):NATURAL SCIENCES::Earth sciences::Exogenous earth sciences::Quaternary geology [Research Subject Categories]language.human_languagePaleontologyMoraineKvartāra ģeoloģijasubglacial deformationlanguageWeichselian glaciationGeomorphologyWeichselian glaciationtill macrofabricGeologyLate Quaternary Terrestrial Processes, Sediments and History: From Glacial to Postglacial Environments
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STOP 11: Recessional moraine ridge at Veresovka, Rāzna glacial depression

2014

geographygeography.geographical_feature_category:NATURAL SCIENCES::Earth sciences::Exogenous earth sciences::Quaternary geology [Research Subject Categories]deglaciationDepression (economics)MoraineKvartāra ģeoloģijaRidge (meteorology)DeglaciationGlacial periodWeichselian glaciationGeomorphologyWeichselian glaciationtill macrofabricGeologyLate Quaternary Terrestrial Processes, Sediments and History: From Glacial to Postglacial Environments
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STOP 10: Kame terrace in the Upper Daugava depression at Rakuti, near Krāslava

2014

geographygeography.geographical_feature_categoryCryoturbationcryoturbationKēmu terases:NATURAL SCIENCES::Earth sciences::Exogenous earth sciences::Sedimentology [Research Subject Categories]:NATURAL SCIENCES::Earth sciences::Exogenous earth sciences::Quaternary geology [Research Subject Categories]Soft-sediment deformation structuresPaleontologyDepression (economics)Kvartāra ģeoloģijaKameWeichselian glaciationGeomorphologysoft sediment deformation structuresGeologyWeichselian glaciationtill macrofabric
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STOP 14: Morphology and internal structure of the Lāči drumlin at Tērvete village, Zemgale Drumlin Field

2014

geographygeography.geographical_feature_categoryDrumliniDrumlin:NATURAL SCIENCES::Earth sciences::Exogenous earth sciences::Sedimentology [Research Subject Categories]Morphology (biology):NATURAL SCIENCES::Earth sciences::Exogenous earth sciences::Quaternary geology [Research Subject Categories]Field (geography)Kvartāra ģeoloģijasubglacial deformationWeichselian glaciationGeomorphologyWeichselian glaciationtill macrofabricLate Quaternary Terrestrial Processes, Sediments and History: From Glacial to Postglacial Environments
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The shell matrix of the freshwater mussel Unio pictorum (Paleoheterodonta, Unionoida). Involvement of acidic polysaccharides from glycoproteins in na…

2007

13 pages; International audience; Among molluscs, the shell biomineralization process is controlled by a set of extracellular macromolecular components secreted by the calcifying mantle. In spite of several studies, these components are mainly known in bivalves from only few members of pteriomorph groups. In the present case, we investigated the biochemical properties of the aragonitic shell of the freshwater bivalve Unio pictorum (Paleoheterodonta, Unionoida). Analysis of the amino acid composition reveals a high amount of glycine, aspartate and alanine in the acid-soluble extract, whereas the acid-insoluble one is rich in alanine and glycine. Monosaccharidic analysis indicates that the in…

glycoproteinMESH: Amino AcidsMESH : PolysaccharidesMESH: BivalviaMESH : Calcification PhysiologicFresh WaterBiochemistryMESH : Spectroscopy Fourier Transform InfraredMESH : BivalviaSpectroscopy Fourier Transform InfraredMollusc shellMESH : Fresh Watercalcium-binding proteinElectrophoresis Gel Two-DimensionalMESH: AnimalsAmino Acidsmollusc shell nacreGel electrophoresisAlanine0303 health sciencesbiologyMESH : Carbohydrates030302 biochemistry & molecular biologyMESH : Extracellular Matrixmatrix macromoleculesExtracellular MatrixBiochemistryMESH: Fresh WaterElectrophoresis Polyacrylamide GelMESH: CarbohydratesFreshwater bivalveCarbohydratesMESH: GlycoproteinsMESH: Extracellular MatrixMESH : Electrophoresis Polyacrylamide GelMESH: Spectroscopy Fourier Transform InfraredMESH: Calcification Physiologic03 medical and health sciencesCalcification PhysiologicPolysaccharidesExtracellularAnimals[SDV.IB.BIO]Life Sciences [q-bio]/Bioengineering/BiomaterialsMolecular BiologyGlycoproteins030304 developmental biologyMolecular massUnio pictorumMESH : Electrophoresis Gel Two-DimensionalCell Biology[ SDV.IB.BIO ] Life Sciences [q-bio]/Bioengineering/Biomaterialsbiology.organism_classificationbiomineralizationMESH: Electrophoresis Gel Two-DimensionalMESH : GlycoproteinsBivalviaIsoelectric pointMESH: PolysaccharidesMESH : Amino AcidsMESH : AnimalsMESH: Electrophoresis Polyacrylamide Gel
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