The fragmentation of Arn+He1000 (n=3,5) is investigated by zero-point averaged dynamics (ZPAD) and compared with recent results on Ar4+He1000 to investigate the influence dopant size. At core ZPAD, effective He-He potentials converged for He1000 ArnHe1000 are found alike which suggests that ZPAD simulations argon-doped helium nanodroplets (HNDs) could restrict obtained pure HNDs. clusters share...

The presence of Megalorhipida leucodactyla (Fabricius) (Lepidoptera: Pterophoridae) in Chile is reported for the first time from the Azapa valley, northern Chile. In this locality, some immature stages of M. leucodactyla were found to be associated with Tessaria absinthioides (Hook. & Arn.) DC., Asteraceae, a new host plant record at the species, genus and family level for M. leucodactyla.

Bertie L., aet. 6, has been noticed by his parents never to shed tears from the right eye. On several occasions I have seen him crying, and though the tears flowed copiously from the left eye, they never came from the right. That they were not secreted was demonstrated by drawing away the lower lid from the globe, when there was no accumulation of tears in the cul-de-sac thus formed. In the lef...

The arn locus, found in many Gram-negative bacterial pathogens, mediates resistance to polymyxins and other cationic antimicrobial peptides through 4-amino-l-arabinose modification of the lipid A moiety of lipopolysaccharide. In Pseudomonas aeruginosa, several two-component regulatory systems (TCSs) control the arn locus, which is necessary but not sufficient for these resistance phenotypes. A ...

Two previously undescribed elemanolide esters, the 2-methylpropanoate and 2-methyl-2-propenoate of 11,13-dehydromelitensin, were isolated in the course of a bioassay-guided fractionation from the aerial parts of Centaurea chilensis Hook. et Arn., used traditionally to treat 'gout and rheumatism'. The mixture of both substances exhibits anti-inflammatory activity in the carrageenan-induced paw e...

A photoactivated neutral organic super electron donor cleaves challenging arenesulfonamides derived from dialkylamines at room temperature. It also cleaves a) ArCNR and b) ArNC bonds. This study also highlights the assistance given to these cleavage reactions by the groups attached to N in (a) and to C in (b), by lowering LUMO energies and by stabilizing the products of fragmentation.

Several treatments have been reported for acute retinal necrosis (ARN). We report a case of treatment with intravitreal injection of ganciclovir and dexamethasone in addition to oral valacyclovir in a patient who was previously treated with oral famciclovir for ipsilateral herpes zoster ophthalmicus (HZO).