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  • 11
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Thermochimica Acta 43 (1981), S. 107-110 
    ISSN: 0040-6031
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 12
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Thermochimica Acta 70 (1983), S. 99-104 
    ISSN: 0040-6031
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 13
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Thermochimica Acta 71 (1983), S. 365-372 
    ISSN: 0040-6031
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 14
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Thermochimica Acta 77 (1984), S. 413-420 
    ISSN: 0040-6031
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 15
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Thermochimica Acta 65 (1983), S. 239-243 
    ISSN: 0040-6031
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 16
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy Section 24 (1968), S. 207-214 
    ISSN: 0584-8539
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
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  • 17
    Electronic Resource
    Electronic Resource
    Springer
    Il nuovo cimento della Società Italiana di Fisica 10 (1988), S. 1363-1371 
    ISSN: 0392-6737
    Keywords: Liquid crystals ; Phase equilibria, phase transitions and critical points of specific substances ; Biophysics of neurophysiological processes (excluding perception processes and speech)
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Description / Table of Contents: Riassunto Le temperature di transizione ed i diagrammi di fase di cinque composti fluorurati della benzilidenanilina sono stati studiati mediante MT e diffrazione dei raggi X. Un polimorfismo smettico è evidente in tutti i composti. La struttura delle fasi smetticheB è stata studiata in particolare in vista di una possibile applicazione di tali fasi come solventi capaci di esercitare effetti stereochimici in fenomeni di polimerizzazione. I parametri del reticolo esagonaleS B risultano esserea=b=4.29Å per tutti i composti, mentrec varia da 18.9 Å a 24Å in funzione del numero di atomi di C della catena alchilica, con un incremento medio di 1.26Å per ogni gruppo CH2. In tutti i casi la distanza fra i piani smettici coincide con la lunghezza molecolare e quindi sono da escludere strutture interdigitate.
    Abstract: Резюме Исследуются температуры переходов и фазовые диаграммы пяти флуорированных производных бензилиден-анилина с помощью TM и дифракции рентгеновских лучей. Во всех соединениях появляется смектический полиморфизм. Подробно исследована структура смектическихB фаз, чтобы использовать такие фазы, как растворитель, способный проявить стереохимические эффекты в явлениях полимеризации. Параметры гексагональной решеткиS B во всех исследованных соединениях представляютa=b=4.29 Å, тогда как величинаc изменястся от 18.9 Å до 24 Å в зависимости от числа атомов С алкильной цепочки, причём среднее увеличение составляет 1.265 Å для которой CH2 группы. Во всех случаях расстояние между смектическими плоскостями равно молекулярной длине.
    Notes: Summary The transition temperatures and phase diagrams of five fluorinated benzylidenaniline derivatives have been studied by TM and X-ray diffraction techniques. A smectic polimorphism appears in all compounds. The structure of smecticB phases has been deeply studied in order to evidence a possible utilization of such phases as solvents able to exert stereochemical effects on polimerization reactions. The parameters of theS B hexagonal lattice area=b=4.29 Å in all the studied compounds, whilstc varies from 18.9Å to 24Å as a function of the C atom number of the alkyl chain; its averaged increase is 1.265Å for each CH2 group. In any case, the distance between the smectic planes is equal to the molecular length so that interdigitated structures are to be excluded.
    Type of Medium: Electronic Resource
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  • 18
    Electronic Resource
    Electronic Resource
    Springer
    Italian journal of neurological sciences 20 (1999), S. 155-159 
    ISSN: 1126-5442
    Keywords: Key wordsMicroemboli ; Transcranial Doppler ; Mechanical heart valves ; Stroke ; Carotid stenosis ; Gaseous bubbles
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Transcranial Doppler detection of microembolic signals has been described in several clinical conditions such as carotid stenosis, prosthetic heart valves, acute stroke, and carotid surgery. The importance of these events for clinical decision-making is still a matter of debate. The authors review the literature and report their personal experience on the clinical significance of microemboli detection.
    Type of Medium: Electronic Resource
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  • 19
    Electronic Resource
    Electronic Resource
    Springer
    Journal of thermal analysis and calorimetry 36 (1990), S. 1457-1463 
    ISSN: 1572-8943
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Es wurden zwei feste Kupfer(II)-phenoxyacetate (wasserfrei und Dihydrat) hergestellt und mittels DSC- und TG-Techniken untersucht. Die erhaltenen Ergebnisse zeigen, da\ die Wassermoleküle des Dihydrates schwach und unterschiedlich gebunden sind. Sowohl die wasserfreie Verbindung als auch das Dihydrat zersetzen sich unter Bildung von CuO als Endprodukt, jedoch über unterschiedliche Schritte. Bezüglich des untersuchten thermischen Prozesses wurden einige thermodynamische Grö\en ermittelt und die erhaltenen Ergebnisse ausgewertet und interpretiert.
    Notes: Abstract Two solid copper(II) phenoxyacetates (anhydrous and dihydrate) were prepared and investigated by DSC and TG techniques. The results obtained indicated that the water molecules of the dihydrate compounds were weakly and differently bonded; also, both anhydrous and dihydrate compound decomposed with formation of CuO as final product, but by different steps. Some thermodynamic parameters associated with the observed thermal processes were evaluated and the results obtained were discussed and interpreted.
    Type of Medium: Electronic Resource
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  • 20
    Electronic Resource
    Electronic Resource
    Springer
    Neurological sciences 15 (1994), S. 145-149 
    ISSN: 1590-3478
    Keywords: cerebral ischemia ; etiology ; cardiopathy ; foramen ovale ; paradoxical ; embolism ; young ; echocardiography ; contrast
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Sommario La prevalenza della pervietà del forame ovale (PFO) è stata studiata, per mezzo della Eco-cardiografia transtoracica con iniezione di mezzo di contrasto, in una serie continua di 48 pazienti di età inferiore ai 50 anni, affetti da episodi acuti di ischemia cerebrale focale. La presenza di PFO è stata dimostrata in 11 soggetti (23%). Nel gruppo dei più giovani (sotto i 30 anni) la prevalenza di questa anomalia cardiaca è risultata molto più alta che in quello dei più anziani (58% contro 11%, p=0,0022). Inoltre, non vi era alcun caso di PFO tra i 19 soggetti in cui è stata dimostrata una evidente causa extracardiaca del disturbo cerebrovascolare, mentre la PFO era presente nel 38% degli altri 29 casi (p=0.0015). In conclusione, la presenza di PFO deve essere ricercata con cura nei pazienti cerebrovascolari ischemici di età inferiore a 30 anni così come in quelli tra i 30 ed i 50 in cui non sia dimostrabile una verosimile causa dell'episodio ischemico cerebrale.
    Notes: Abstract By means of transthoracic contrast echocardiography, the prevalence of a patent foramen ovale (PFO) was studied, in a continuous series of 48 patients aged less than 50 years with a recent episode of acute cerebral ischemia. A PFO was found in 11 subjects (23%). In the subgroup of younger patients (aged less than 30 years), the prevalence was much higher than in those aged 30 or more (58% against 11%, p=0.0022). In the 19 patients with clear evidence of extracardiac causal factors of cerebral ischemia, there was no PFO; of the remaining 29 subjects, a PFO was present in 11 (38%) (p=0.0015). In conclusion, the possibile presence of a PFO must be carefully investigated in subjects with cerebral ischemia aged less than 30, as well as in subjects aged between 30 and 50 in whom there is no acceptable explanation for their cerebral ischemic episode.
    Type of Medium: Electronic Resource
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