El artículo examina la creciente importancia a medida que avanza el periodo medieval de los juramentos fidelidad relacionados con Orden Calatrava en Aragón. En primer lugar, se analiza su papel construcción del poder señorial Alcañiz y Bajo Aragón, donde dominaba treinta localidades forma son mediatizados por real desde principios siglo xiv. segundo término, estudia continua reclamación impuest...

Fluorinated fentanyl regioisomers have become increasingly common in forensic casework. This study reports the synthesis of eight fluorinated derivatives as pure reference materials and their complete NMR, infrared mass spectral characterisation. Presumptive colour tests TLC results are presented an initial screening method for these compounds. The fully validated GC–MS (employing SIM mode) all...

ABSTRACT The phenomenon of desertification has a negative impact on the national economy any country and may usually be obtained for many reasons such as removal agricultural land, depletion soil, overgrazing, methods poor irrigation, high temperature, lack rainfall. following paper tackles solving problem rainfall through use chemical preparing sodium polyacrylate improving its properties by m...

Le compoix du Pouget (Hérault) de 1342-1343 est un document exceptionnel par sa précocité dans les espaces ruraux Languedoc. Découvert à l’été 2015, il offre des perspectives recherches nouvelles. Il permet jauger ce qu’est exactement cadastre ancien au sein la famille compoix. Faire point archivistique sujet semble en effet devenu nécessaire, aujourd’hui que recherche a beaucoup avancé. Du vue...