Pressure-Induced Lipoatrophia Semicircularis

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[Pressure-induced lipoatrophia semicircularis].

Lipoatrophia semicircularis of the thighs is an uncommon form of localized lipodystrophy characterized by horizontal semicircular depressions distributed to form a band. The asymptomatic, often bilateral, and symmetric lesions are localized on the anterolateral aspect of the thighs. The pathogenesis of these lesions is unknown, although most cases are associated with repetitive trauma. A new hy...

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An outbreak of 400 cases of lipoatrophia semicircularis in Barcelona: effectiveness of control measures.

OBJECTIVE From February 2007 to October 2008, 1137 cases of lipoatrophia semicircularis were registered in distinct workplaces (WPs) in Barcelona. A protocol to establish control measures was designed. This study pretends to evaluate the effectiveness of these measures. METHODS In this case study, the outbreak course in relation to the implemented measures (relative humidity >50%, ground-mass...

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Pressure-induced transformations of cristobalite

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Pressure induced superconductivity in CaFe2As2.

CaFe2As2 has been found to be exceptionally sensitive to the application of hydrostatic pressure and can be tuned to reveal all the salient features associated with FeAs superconductivity without introducing any disorder. The ambient pressure, 170 K, structural/magnetic, first-order phase transition is suppressed to 128 K by 3.5 kbar. At 5.5 kbar a new transition is detected at 104 K, increasin...

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Pressure-induced metallization of silane.

There is a great interest in electronic transitions in hydrogen-rich materials under extreme conditions. It has been recently suggested that the group IVa hydrides such as methane (CH(4)), silane (SiH(4)), and germane (GeH(4)) become metallic at far lower pressures than pure hydrogen at equivalent densities because the hydrogen is chemically compressed in group IVa hydride compounds. Here we re...

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ژورنال

عنوان ژورنال: Actas Dermo-Sifiliográficas (English Edition)

سال: 2008

ISSN: 1578-2190

DOI: 10.1016/s1578-2190(08)70273-7