Blepharoptosis in RGP and PMMA hard contact lens wearers.

Background: Contact lens wear has been documented to cause an acquired non-senile blepharoptosis. This is generally associated with prolonged wearing of hard contact lenses. The aim of this study was to determine the clinical features of blepharoptosis associated with contact lens wear including the type of contact lens and the duration of wear.

Uveitis in Herpes zoster ophthalmicus.

Background: Herpes zoster ophthalmicus (HZO) is a common condition occurring mostly in healthy people. Approximately 50% of HZO patients develop ocular complications, with iridocyclitis occurring in about 43%. This study aimed to identify the clinical features of uveitis secondary to HZO.

Kairomones and their use for management of entomophagous insects. XV. : Identification of several acids in scales ofHeliothis zea moths and comments on their possible role as kairomones forTrichogramma pretiosum.

Acids found in moth scales of laboratory-rearedHeliothis zea (Boddie) moths are hexanoic, heptanoic, octanoic, nonanoic, 2- (or 3-) furan carboxylic, phenylacetic, benzoic, sorbic, and 4-hydroxybenzoic acid. The last two of these acids are preservatives added to the artifical diet as sorbic acid and methyl-p-hydroxybenzoate. FemaleTrichogramma pretiosum Riley exhibited increased rates of parasitization ofH.

Tris(dichloropropyl)phosphate, a mutagenic flame retardant: frequent cocurrence in human seminal plasma.

Negative-chemical-ionization mass spectral screening of extracts of human seminal plasma has revealed a presence of a Cl7 ion cluster at a mass-to-charge ratio (m/z) of 463 in a significant number of the samples examined (34 out of 123). Experiments with different gases used to generate the negative-chemical-ionization plasma indicated that the ion at m/z 463 was a chloride adduca of a Cl6 molecule with a mass of 428 daltons. Negative-chemical-ionization mass measurement with ions from the iodoform mass spectrum used as reference peaks gave a mass of 427.