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il comportamento spontaneo ed interattivo del neonato di basso peso o in condizioni patologiche
No full textNo abstrac
THE METHYLATION, OXIDATION AND CRYSTALLOGRAPHIC CHARACTERIZATION OF IMIDAZOLE DERIVATIVES
No full textCompounds 2, 3 and 4 were synthesized and the crystal and molecular structures of 1 and 4 were determined. An hptlc technique for studying the methylation rate of 1 and the oxidation rate of 2 was applied
Sviluppo comportamentale dell'ex prematuro
No full textIn this work author investigate ex-premature neurological development characteristics in the first childhooh and expose the results of a longitudinal search that estimate the development of the following behavioral characterisitics: vigilance and interactive ability, irritability and tears, consolability and spleeping organisation an their influence on affective and relational development.Authors conclude stressing on imporrtance to give parents all informations about these developmental charactgerisitcs to aid comunication between parents and childre
L'elettroencefalogramma nelle convulsioni neonatali: possibilità diagnostiche e prognostiche
No full textA clinical approache to newborn epilepsy must start for the careful description of seizures even in the period life. The permits us to classift correctly neoantal seizure; methodical post-mortem correlative studies could laed us to a better comprehension of their pathogenic mechanism.EEG-poligraphic records significance in diagnosis and prognosis is also stressed.Repetitive sharp waves formed the most frequent critical pattern; during virtually "generalised" seizures tonic and clinic phase cliniccaly and electrically distinguished are illustrated.Critic anachronostic activities (alpha and theta-like) were observed in one case.Flat tracings or repetitive slow waves (delta waves) activity were found in prterm babies during apnoeic or tonic attacks and in at term ones during the rare tonic seizures.; they generally corresponded to a severe CNS damage destructive in nature and ha a bad prognosis oten evolving in a West hypsarrhytmia.In so called " atypical seizures" the importance of EEG-poligraphic monitorin emerges.As well Known, inactive or low voltage tracing and periodic intercritical activities had an unvarouable prognosis.The possible development of a West syndrome from a persisting anterocentral show dyshrytmia is proved.Amultidocal paroxysmal activity in interseizure phases involved a bad significance.On the contrary, continuous theta-like rhythms on a precedent paroxysmal activity, if rapidly and completely established, were always followed by a good evolution in our series
CONFORMATIONAL AND CONFIGURATIONAL STUDY OF 1,3-DIOXOLANES BY PROTON AND CARBON NMR-SPECTROSCOPY
No full textThe configurational and conformational properties of six 4-trimethylammoniummethyl 2,2-disubstituted 1,3-dioxolanes were studied using NOE experiments and vicinal coupling constants. Selective 1D NOE experiments proved to be effective tools in the configurational assignment of C-2 relative to C-4, The preferred conformation of the dioxolane ring and the exocyclic group at C-4 was obtained by employing vicinal coupling constants and NOE results. The H-1 and C-13 NMR chemical shifts show stereochemically dependent trends, Quantitative analysis of conformer populations was performed using Haasnoot et al's equation. The -N+(CH3)(3) group was found to be synclinal with respect to the heterocyclic 0-3 atom and points outside the ring, When a phenyl group is present at C-2, the 4-CH2N+ - group in a trans relationship to the 2-phenyl ring was found to occur prevalently in a pseudo-axial orientation, whereas it was established to be prevalently pseudo-equatorial when cis with respect to the phenyl ring
SYNTHESIS, CHARACTERIZATION, AND CRYSTALLOGRAPHIC ANALYSIS OF SOME BENZOIMIDAZOLE DERIVATIVES
No full textA number of benzenesulfonyl derivatives of benzoimidazol-2-ylamine and 1-methyl-benzoimidazol-2-ylamine were synthesized, their synthesis reactions under different experimental conditions being monitored by hptlc. The crystal and molecular structures of N-(1-benzenesulfonyl-1,3-dihydrobenzoimidazol-2-ylidene)benzenesulfonamide (4) and N-(1-benzenesulfonyl-3-methyl-1,3-dihydro-benzoimidazol-2-ylidene)-benzenesulfonamide (7) were determined by X-ray diffraction analysis. The structure of compound 4 is made up of two crystallographically independent molecules and that of compound 7 of one molecule. In both cases, the structure contains the imido form of the molecules. There are strong conjugative effects between the imido groups and the imidazolic rings. Weak intramolecular C-H ... O hydrogen bonding interactions could influence the molecular conformations
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