Search results for "Conducta"

showing 10 items of 611 documents

Evaluation of Fused Pyrrolothiazole Systems as Correctors of Mutant CFTR Protein.

2021

Cystic fibrosis (CF) is a genetic disease caused by mutations that impair the function of the CFTR chloride channel. The most frequent mutation, F508del, causes misfolding and premature degradation of CFTR protein. This defect can be overcome with pharmacological agents named “correctors”. So far, at least three different classes of correctors have been identified based on the additive/synergistic effects that are obtained when compounds of different classes are combined together. The development of class 2 correctors has lagged behind that of compounds belonging to the other classes. It was shown that the efficacy of the prototypical class 2 corrector, the bithiazole corr-4a, could be impr…

Yellow fluorescent proteinProtein FoldingCystic FibrosisMutantPharmaceutical ScienceCystic Fibrosis Transmembrane Conductance RegulatorCarboxamidemedicine.disease_cause01 natural sciencesAnalytical Chemistrychemistry.chemical_compoundMutant ProteinDrug DiscoveryMoietyCFTR potentiatorCFTRchemistry.chemical_classification0303 health sciencesMutationbiologyChemistryChemistry (miscellaneous)Chloride channelMolecular MedicineHumanStereochemistrymedicine.drug_classCFTR correctorArticleF508del-CFTRlcsh:QD241-44103 medical and health scienceslcsh:Organic chemistrymedicineHumansBenzodioxolesPhysical and Theoretical ChemistryThiazoleCystic Fibrosi030304 developmental biology010405 organic chemistryOrganic ChemistryAminoimidazole Carboxamide0104 chemical sciencesThiazolesMutationbiology.proteinMutant ProteinsBenzodioxoleTricyclicMolecules (Basel, Switzerland)
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Efficient, non-toxic anion transport by synthetic carriers in cells and epithelia.

2016

Transmembrane anion transporters (anionophores) have potential for new modes of biological activity, including therapeutic applications. In particular they might replace the activity of defective anion channels in conditions such as cystic fibrosis. However, data on the biological effects of anionophores are scarce, and it remains uncertain whether such molecules are fundamentally toxic. Here, we report a biological study of an extensive series of powerful anion carriers. Fifteen anionophores were assayed in single cells by monitoring anion transport in real time through fluorescence emission from halide-sensitive yellow fluorescent protein. A bis-(p-nitrophenyl)ureidodecalin shows especial…

Yellow fluorescent proteinpotencyGeneral Chemical Engineeringsynthetic anion carriersCystic Fibrosis Transmembrane Conductance Regulator01 natural sciencesMadin Darby Canine Kidney CellsCell membranedeliverabilityta116Drug CarriersbiologyMolecular StructureChemistryBiological activitypersistenceCystic fibrosis transmembrane conductance regulatorTransmembrane proteinanionophoresmedicine.anatomical_structureBiochemistryPhosphatidylcholinesSteroidsChlorineAnionsCell SurvivalNaphthalenesta3111010402 general chemistryDogsBacterial ProteinsCyclohexanesmedicineAnimalsHumansIon transporterCell ProliferationIon Transport010405 organic chemistryCell MembranetoxicityTransporterEpithelial CellsHydrogen BondingGeneral ChemistryRats Inbred F3440104 chemical sciencesElectrophysiological PhenomenaLuminescent ProteinsMicroscopy FluorescenceCell cultureDrug Designbiology.proteinHeLa CellsNature chemistry
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Annealed Invariance Principle for Random Walks on Random Graphs Generated by Point Processes in R-d

2016

International audience; We consider simple random walks on random graphs embedded in R-d and generated by point processes such as Delaunay triangulations, Gabriel graphs and the creek-crossing graphs. Under suitable assumptions on the point process, we show an annealed invariance principle for these random walks. These results hold for a large variety of point processes including Poisson point processes, Matern cluster and Matern hardcore processes which have respectively clustering and repulsiveness properties. The proof relies on the use the process of the environment seen from the particle. It allows to reconstruct the original process as an additive functional of a Markovian process und…

[ MATH ] Mathematics [math][MATH.MATH-PR] Mathematics [math]/Probability [math.PR]Voronoirandom walk in random environment[MATH] Mathematics [math]Delaunay triangulationMott LawTessellationsRandom Conductances[MATH.MATH-ST]Mathematics [math]/Statistics [math.ST]RecurrenceRandom Geometric GraphsReversible Markov-ProcessesRandom Environment[ MATH.MATH-ST ] Mathematics [math]/Statistics [math.ST][MATH]Mathematics [math][MATH.MATH-ST] Mathematics [math]/Statistics [math.ST]point processGabriel graphelectrical network[MATH.MATH-PR]Mathematics [math]/Probability [math.PR]Transienceenvironment seen from the particlePercolation Clustersannealed invariance principle[ MATH.MATH-PR ] Mathematics [math]/Probability [math.PR]
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The selective advantage of cystic fibrosis heterozygotes tested by aDNA analysis: A preliminary investigation

2000

Recently a heterozygote advantage was suggested to explain the high incidence (1:25 carrier individuals in Europeans) of the cystic fibrosis gene. This selective advantage was speculated to be due to a high resistance to chloride-secreting diarrhea, including cholera. Up to now the major efforts to test directly this hypothesis have been limited to animal models.

aDNAPathologymedicine.medical_specialtyCystic fibrosis genecystic fibrosis aDNA ancient DNAmedicine.disease_causeCystic fibrosisNOcystic fibrosis03 medical and health sciencesSelective advantagemedicineancient DNA030304 developmental biology0303 health sciencesbiology030305 genetics & heredityCholera toxinHeterozygote advantagemedicine.diseaseCholeraCystic fibrosis transmembrane conductance regulator3. Good healthDiarrheaAnthropologyImmunologybiology.proteinmedicine.symptom
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Theoretical Simulations on Electric Properties of CNT-Me and GNR-Me Interconnects Using Effective Media Approach

2011

Abstract To overcome disadvantages of nowadays microtechnology, a further miniaturization of electronic devices, high integration level as well as increase of both operation frequencies and power density is required, including the use of adequate materials and innovative chip interconnects. Due to their unique physical properties, especially due to a ballistic (without losses) mechanism of conductivity, carbon nanotubes (CNTs) and graphene nanoribbons (GNRs) attract a permanently growing technological interest, for example, as promising candidates for nanointerconnects in a high-speed electronics.

ab initio electronic structure calculationComputer scienceGraphene nanoribbonsCarbon nanotubesNanotechnologyCarbon nanotubeCNT-Me and GNR-Me interconnectsConductivityChirality effectslaw.inventionlawConductance and resistanceMiniaturizationGeneral Earth and Planetary SciencesMicrotechnologyElectronicsGraphene nanoribbonsGeneral Environmental SciencePower densityProcedia Computer Science
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Reason for treatment abandonment from the perspective of the patient with an eating disorder

2016

Los tratamientos psicológicos y farmacológicos para los trastornos de la conducta alimentaria comportan costes personales y sanitarios. En este trabajo estudiamos los diferentes motivos que pueden estar asociados al abandono en ambos tipos de tratamientos en pacientes diagnosticados con un trastorno de la conducta alimentaria, así como el tipo de abandono: abandono tras evaluar, abandono precoz y tardío. Por otro lado, analizamos si existe alguna relación entre el diagnóstico y el tipo de abandono. Se examinaron diversas características (edad, sexo, diagnóstico, motivos y tipos de abandono, y satisfacción respecto a la unidad de trastornos de la conducta alimentaria) en 212 pacientes atendi…

abandono del tratamientotrastornos de la conducta alimentariaeating disorderstreatment discontinuation
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L'activitat física de l'alumnat universitari amb discapacitat: correlats sociodemogràfics, psicosocials i de l'entorn/Physical activity of university…

2019

L’activitat física (AF) ha demostrat tenir una gran quantitat d’efectes positius sobre la salut, el benestar i la qualitat de vida de les persones amb discapacitat. Amb tot, diversos estudis han trobat que les persones amb discapacitat participen en AF en menor mesura que la població general. Davant d’aquesta situació, el disseny i desenvolupament d’intervencions centrades en l’increment i la millora de la participació en AF de les persones amb discapacitat ha de ser un objectiu prioritari de les polítiques de salut pública. L’objectiu general de la present tesi doctoral és estudiar l’AF de l’alumnat amb discapacitat de les universitats espanyoles i els seus correlats sociodemogràfics, psic…

activitat físicateoria de la conducta planejadaUNESCO::CIENCIAS MÉDICASteoria socioecològicapersones amb discapacitatcorrelats:CIENCIAS MÉDICAS [UNESCO]universitat
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Barrios de Riesgo, Estilos de Socialización Parental y Problemas de Conducta en Adolescentes

2010

Este articulo tiene como objetivo analizar la influencia de los estilos parentales de socializacion (autoritario, autorizativo, indulgente y negligente) y el nivel de riesgo percibido en el barrio en tres indicadores de problemas de conducta en la adolescencia (conducta escolar disruptiva, delincuencia y consumo de sustancias). La muestra esta compuesta por 1.017 adolescentes, con edades comprendidas entre los 12 y 17 anos. Los resultados obtenidos a partir de cuatro disenos factoriales multivariados revelaron unicamente efectos principales de los estilos parentales y del nivel de riesgo percibido en el barrio. Los adolescentes de padres indulgentes y autorizativos presentaron menores probl…

adolescenciaSocial Psychologyvecindarios de riesgoDevelopmental and Educational Psychologysocializaciónestilos parentalesApplied Psychologyproblemas de conducta
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Efecto de la competencia social, la empatía y la conducta prosocial en adolescentes

2014

La presente Tesis Doctoral presenta una investigación interesante en cuanto al marco social actual y al valor de las relaciones sociales. Se trata de un estudio sobre cómo son la Competencia Social, la Empatía y la Conducta Prosocial en los adolescentes. Además de esto se profundiza en cómo estos constructos se relacionan. La muestra la componen 316 alumnos de Educación Secundaria Obligatoria y Bachillerato, estudiantes en Teruel. Para ello, en la investigación se han tomado como Variables Independientes, las variables personales, es decir: el sexo (hombre-mujer), la edad (de 12 a 18 años), la creencia religiosa (creyente, agnóstico o ateo), la nota media del curso anterior (suficiente, bie…

adolescenciacompetencia social:PSICOLOGÍA [UNESCO]empatía:PEDAGOGÍA [UNESCO]UNESCO::PSICOLOGÍAUNESCO::PEDAGOGÍAconducta prosocial
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Empatia en la adolescencia.Relaciones con razonamiento moral prosocial, conducta prosocial y agresividad

2016

Este estudio persigue un doble objetivo. De una parte, analizar las relaciones entre empatía, conducta prosocial y razonamiento moral prosocial y sus diferencias en función del sexo. De otra, analizar el valor predictor de dichas variables en la empatía, tomada como variable criterio. La población está compuesta por 1557 adolescentes de 12 a 15 años (M=13.13; DT=.86; 47.4% chicas; 52.6% chicos). Los análisis diferencias significativas entre chicos y chicas. Las chicas obtienen mayores índices de empatía, conducta prosocial, razonamiento moral prosocial, en las dimensiones de interiorizado, orientado hacia la necesidad y estereotipado. Los chicos, por su parte, muestran mayores índices en ag…

adolescenciaempatia:PSICOLOGÍA [UNESCO]razonamiento moral asocialagresividadUNESCO::PSICOLOGÍAconducta prosocial
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