Results of a study on organophosphate (OP) resistance carried out on 4 Italian field populations of Culex pipiens are reported. The A1, A4-B4 and/or A5-B5 nonspecific esterases and insensitive acetylcholinesterase (AChE) were detected in our samples. A2-B2 esterases previously recorded in Italy were not observed. The A4-B4 and/or A5-B5 esterases were first found in Italy where they are at prese...

The total synthesis of hyacinthacines B3, B4, and B5 and purported hyacinthacine B7, 7-epi-hyacinthacine B7, and 7a-epi-hyacinthacine B3 from a common anti-1,2-amino alcohol precursor is described. These syntheses confirmed that the proposed structures and absolute configurations of hyacinthacines B3, B4, and B5 were correct and disclosed that the proposed structure of hyacinthacine B7 was inco...

While tuberculosis susceptibility has historically been ascribed to failed inflammation, it is now known that an excess of leukotriene A4 hydrolase (LTA4H), which catalyzes the final step in leukotriene B4 (LTB4) synthesis, produces a hyperinflammatory state and tuberculosis susceptibility. Here we show that the LTB4-inactivating enzyme leukotriene B4 dehydrogenase/prostaglandin reductase 1 (LT...

The security of home doors has become one the necessities in this era. Internet Things (IoT) technology also entered into building smart home. Therefore, it necessary to develop a facial recognition system that can be implemented on IoT devices. This study presented method recognize faces using efficientnet-b4. Transfer learning with fine-tuning was used here due small dataset size and high acc...

En Venezuela y el mundo, arroz es uno de los principales cereales que cubre requerimientos calóricos del ser humano. La productividad este cultivo afectada significativamente por las malezas, dentro destaca la paja rugosa (Ischaemum rugosum Salisb.) su capacidad modificar geometría dosel, condición desventajosa llamada acamado. Esta modificación arquitectura planta analizada comparada con una p...