Prospects for unprecedented seeing in Antarctica

Exceptional astronomical seeing conditions above Dome C in Antarctica Q 1

One of the most important considerations when planning the next generation of ground-based optical astronomical telescopes is to choose a site that has excellent ‘seeing’—the jitter in the apparent position of a star that is caused by light bending as it passes through regions of differing refractive index in the Earth’s atmosphere. The best mid-latitude sites have a median seeing ranging from ...

Seeing Seeing

This paper discusses several key issues concerning consciousness and human vision. A brief overview is presented of recent developments in this area, including issues that have been resolved and issues that remain unsettled. Based on this, three Hilbert questions are proposed. These involve three related sets of issues: the kinds of visual experience that exist, the kinds of visual attention th...

prospects for antifibrotic therapy

antifibrotic therapies should preferentially be targeted to the activated hepatic mesenchymal cells. those cells resemble wound healing myofibroblasts and synthesize an excess of extracellular matrix (ecm) proteins. they derive from quiescent hepatic stellate cells (hsc) and portal/perivascular (myo-) fibroblasts (mf). whereas various agents have been shown to inhibit hsc/mf proliferation and c...

Seeing and not seeing.

Recent studies revealed that although subterranean mammals inhabit a dark underground environment, they can still perceive light stimuli and use this to entrain their circadian activity rhythm. Regarding spatial orientation, olfactory and tactile cues are employed for short-distance; whereas for long-distance, subterranean mammals employ the earth's magnetic field and self-generated (vestibular...

The Prospects of Epigenetics in Neuroscience