Search results for "MR"
showing 10 items of 3001 documents
Genetic analysis of familial Alzheimer’s disease, primary lateral sclerosis and paroxysmal kinesigenic dyskinesia: a tool to uncover common mechanist…
2021
Tesis doctoral 270 p. figuras y tablas
CT AND MR INAGING FINDINGS IN HEPATIC PELIOSIS
2004
Rotator cuff calcific tendinopathy: from diagnosis to treatment
2018
Rotator cuff calcific tendinopathy (RCCT) is a very common condition caused by the presence of calcific deposits in the rotator cuff (RC) or in the subacromial-subdeltoid (SASD) bursa when calcification spreads around the tendons. The pathogenetic mechanism of RCCT is still unclear. It seems to be related to cell-mediated disease in which metaplastic transformation of tenocytes into chondrocytes induces calcification inside the tendon of the RC. RCCT is a frequent finding in the RC that may cause significant shoulder pain and disability. It can be easily diagnosed with imaging studies as conventional radiography (CR) or ultrasound (US). Conservative management of RCCT usually involves rest,…
Neural phoneme discrimination in variable speech in newborns – associations with dyslexia risk and later language skills
2023
AbstractA crucial skill in infant language acquisition is learning of the native language phonemes. This requires the ability to group complex sounds into distinct auditory categories based on their shared features. Problems in phonetic learning have been suggested to underlie language learning difficulties in dyslexia, a developmental reading-skill deficit. We investigated auditory abilities important for language acquisition in newborns with or without a familial risk for dyslexia with electrophysiological mismatch responses (MMRs). We presented vowel changes in a sequence of acoustically varying vowels, requiring grouping of the stimuli to two phoneme categories. The vowel changes elicit…
SrP3N5O: a highly condensed layer phosphate structure solved from a nanocrystal by automated electron diffraction tomography.
2011
The oxonitridophosphate SrP(3)N(5)O has been synthesized by heating a multicomponent reactant mixture that consisted of phosphoryl triamide OP(NH(2))(3), thiophosphoryl triamide SP(NH(2))(3), SrS, and NH(4)Cl enclosed in evacuated and sealed silica-glass ampoules up to 750 °C. The compound was obtained as nanocrystalline powder with needle-shaped crystallites. The crystal structure was solved ab initio on the basis of electron diffraction data by means of automated electron diffraction tomography (ADT) and verified by Rietveld refinement with X-ray powder diffraction data. SrP(3)N(5)O crystallizes in the orthorhombic space group Pnma (no. 62) with unit-cell data of a=18.331(2), b=8.086(1), …
Labvēlīga pirmreizējā komunikācija bērniem ar autiskā spektra traucējumiem, uzsākot individuālās nodarbības pie speciālā pedagoga 3-4 gadu vecumā
2018
Larisas Kudrjavcevas izstrādātā diplomdarba tēma ir “Labvēlīga pirmreizējā komunikācija bērniem ar autiskā spektra traucējumiem, uzsākot individuālās nodarbības pie speciālā pedagoga 3-4 gadu vecumā”. Mērķis: Pētīt labvēlīgas pirmreizējās komunikācijas veidošanas iespējas 3-4 gadus vecam bērnam ar autiskā spektra traucējumiem uzsākot individuālās nodarbības pie speciālā pedagoga. Darba apjoms: 62 lpp., 8 tabulas, 13 attēli, 7 pielikumi, 62 izmantotie avoti un literatūra. Veicot pētījumu par speciālā pedagoga pirmreizējo komunikāciju, atbilstoši pētījuma uzdevumiem, tika analizēta pedagoģiskā literatūra par pirmsskolas vecuma bērnu attīstību un autiskā spektra traucējumiem, komunikācijas kom…
Processing of speech and non-speech sounds in the language-related cortex compared between dyslexic and normal-reading adults : fMRI-study
2000
Detección de nuevos marcadores asociados a daño por reperfusión y fibrosis en infarto de miocardio validados histopatológicamente mediante análisis m…
2022
La resonancia magnética cardiovascular (RMC) con realce tardío es la técnica de referencia para la evaluación no invasiva del daño cardíaco después de un infarto de miocardio (IM). Sin embargo, la interpretación de estas imágenes en términos de daño tisular es aún complicado y el uso de agentes de contraste en esta técnica está contraindicado en un amplio sector de la población con insuficiencia renal crónica. La microscopía de resonancia magnética (MRM) proporciona un nivel de detalle comparable al objetivo macroscópico de la microscopía óptica. Por ello, podría ser una herramienta muy útil en la interpretación de la imagen de RMC y en la identificación de nuevos marcadores de imagen de re…
Effect of catalyst composition on chain‐end‐group of polyethylene produced by salen‐type complexes of titanium, zirconium, and vanadium
2010
The chain end structures of polyethylenes produced by salen complexes of titanium, zirconium, and vanadium, activated by MAO or common alkylaluminium compounds were investigated by 1H NMR and FTIR spectroscopy. The polymerization process with the use of vanadium complexes was found to produce polymers with only vinyl end groups in practice. In the processes catalyzed by titanium and zirconium complexes activated by MAO or Et2AlCl, not only β‐hydrogen elimination and/or chain transfer to the monomer occurs but also the chain termination reaction takes place in which an organoaluminium cocatalyst is involved. That reaction proceed particularly easily in the systems: titanium complex/Et2AlCl.