The pupil dilation reflex is mediated by inhibition of the parasympathetic Edinger-Westphal oculomotor complex and sympathetic activity. It has long been documented that emotional and sensory events elicit a pupillary reflex dilation. Is the pupil response a reliable marker of a visual detection event? In two experiments where viewers were asked to report the presence of a visual target during ...

We summarize the main results from our SCUBA survey of Lyman-break galaxies (LBGs) at z ∼ 3. Analysis of our sample of LBGs reveals a mean flux of S850 =0.6±0.2mJy, while simple models of emission based on the UV properties predict a mean flux about twice as large. Known populations of LBGs are expected to contribute flux to the weak sub-mm source portion of the far-IR background, but are not l...

Much recent work in satisficing planning has aimed at striking a balance between coverage solving as many problems as possible and plan quality. Current planners achieve near perfect coverage on the latest IPC benchmarks. It is therefore natural to investigate their scaling behavior on more difficult instances. Among state of the art planners, LAMA (Richter, Helmert, and Westphal 2008) is able ...

New azaquinolizinium-type cations have been obtained from isochromane. The synthesis was completed over seven steps and included as the key feature an intramolecular Westphal condensation. This first example of the intramolecular process allowed the preparation of benzo[f]pyrido[2,1-a]phthalazinium and benzo[f]quino[2,1-a]phthalazinium salts, which were evaluated as DNA intercalators, DNA topoi...

To estimate the diffusion constant D of particles in a plasma, we develop a method that is based on the mean free path λ for scatterings with momentum transfer q ∼ T . Using this method, we estimate λ and D for squarks and quarks during the electroweak phase transition. Assuming that Debye and magnetic screening lengths provide infrared cutoffs, our calculations yield λ ∼ 18/T and D ∼ 5/T for b...

Evidence is presented for an active corneal component of accommodation in chicks. Using anesthetized chicks, consistent increases in corneal curvature were observed during accommodation produced either by electrical stimulation of the Edinger-Westphal nucleus or by topical application of 0.4% nicotine sulfate to the cornea. Electrical stimulation produced a mean accommodative amplitude of 9.2 d...

BACKGROUND While tonic pupils have been attributed to various diseases, including syphilis, herpes zoster, orbital trauma, temporal arteritis, endometriosis, and paraneoplastic syndromes, obstructive hydrocephalus has not been implicated. CASE REPORT A 36-year-old woman visited a neurology department with a 7-day history of throbbing headache and blurred vision in both eyes. She had early dor...

1 Post-doctoral degree in Thoracic Surgery (Coordinator of Education and Research at the Getúlio Vargas University Hospital). 2 MSc in ENT (Head of the ENT Service at the Getúlio Vargas University Hospital). 3 MSc in ENT (Assistant Physician at the Getúlio Vargas University Hospital). 4 PhD in Heart Surgery (Head of the Thoracic Surgery Service at the Getúlio Vargas University Hospital). 5 ENT ...

PURPOSE Nitric oxide (NO) has been identified as a putative neurotransmitter in choroidal perivascular nerve fibers originating parasympathetically. Although constitutively produced NO has been implicated in the regulation of the choroidal circulation, the specific role of neurally derived NO in choroidal vasodilation has not been determined. This study examined the role of neurally derived NO ...

A one-half of the '57 proteins of the photosynthetic membranes in plant chloroplasts is encoded in the chloroplast genome, translated on chloroplast ribosomes and cotranslationally inserted into the lipid bilayer of the thylakoids (flattened sacs; ref. 1). The other half is translated on cytosolic ribosomes from messenger RNA of nuclear genes and posttranslationally imported across the outer an...