0000000000424023

AUTHOR

A. Villanueva

showing 3 related works from this author

Papillary squamous cell carcinoma of the oropharynx.

2003

A case of papillary squamous cell carcinoma of the oropharynx is reported. The lesion was located in the base of the tongue and grossly presented a characteristic finger-like pattern of growth. The clinicopathological profile of the neoplasm is presented and the differential diagnosis with other exophytic squamous cell carcinomas is discussed.

AdultPathologymedicine.medical_specialtybusiness.industryGeneral Medicinemedicine.diseasePapillary Squamous Cell CarcinomaLesionDiagnosis Differentialstomatognathic diseasesOropharyngeal NeoplasmsOtorhinolaryngologyEpidermoid carcinomaHead and neck surgeryCarcinomaCarcinoma Squamous CellMedicineNeoplasmHumansBase of tongue cancerFemaleDifferential diagnosismedicine.symptombusinessEuropean archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery
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Application de la topologie moléculaire à la prédiction de la viscosité liquide des composés organiques

1999

Nous avons applique la topologie moleculaire a la recherche d'un modele mathematique capable de predire la viscosite liquide d'un large groupe de composes organiques contenant C, H, O, N, S et des halogenes. Les descripteurs topologiques utilises pour cette etude des relations quantitatives structure-propiete, R.Q.S.P., sont les indices de connectivite de Kier et Hall -jusqu'a l'ordre quatre- ainsi que les indices atomiques electrotopologiques. La qualite de l'equation de regression multilineaire obtenue (aussi dite « fonction de connectivite») a ete evaluee par une etude de validation croisee. Tous les composes excepte le 1,1,2-trichlorotrifluorethane s'ajustent au modele propose.

BiochemistryJournal de Chimie Physique et de Physico-Chimie Biologique
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Evaluation of reverse transcription and polymerase chain reaction (RT/PCR) for the detection of rotaviruses: applications of the assay.

1996

Summary Our aim was to evaluate the reverse transcription and polymerase chain reaction (RT/PCR) technique for the detection of rotavirus shedding by infected children as a routine diagnostic procedure, in comparison to the enzyme-linked immunosorbent assay (ELISA), electron microscopy (EM) and polyacrylamide gel etectrophoresis (PAGE) of rotavirus double stranded RNA. Two-hundred and twenty stool specimens were collected from infants and young children with diarrhoea, and 10–20% faecal suspensions were made. Several methods of rotavirus dsRNA extraction were assayed. Electrophoretic analysis of viral RNA was carried out on 10% polyacrylamide gols followed by silver staining. RT/PCR was per…

RotavirusRT/PCRTranscription GeneticImmunologyReoviridaeEnzyme-Linked Immunosorbent AssayMicroscopic électroniquemedicine.disease_causeSensibilité.Polymerase Chain ReactionSensitivity and SpecificityRotavirus InfectionsArticlelaw.inventionFecesfluids and secretionsSensitivitylawVirologyRotavirusViral analysismedicineElectron microscopyHumansTypingChildRotavirus RT/PCRPolymerase chain reactionbiologyRNAInfantbiology.organism_classificationVirologyMolecular biologyReverse transcriptaseVirus SheddingPAGEMicroscopy ElectronReal-time polymerase chain reactionEvaluation Studies as TopicAnalyse viraleRNA ViralElectrophoresis Polyacrylamide GelELISARNA extractionResearch in virology
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