in this paper, an exchange of letters between the philosopher jacques derrida and architect peter eisenman is used as a catalyst to discuss the material qualities of glass and its relationship with the concept of transparency in architecture. in his criticism of an architecture devoid of human qualities, derrida uses glass, defined through walter benjamin’s writings, as a hard and cold material...

1. The detectability of sinusoidal gratings comprised of either one or many cycles was measured in veiling luminances the spatial frequencies of which were either narrow- or broad-band.2. In narrow-band noise, the single-cycle grating was detected with approximately 0.6 log units less contrast than the many-cycle grating. On the other hand when both broad-band and narrow-band noise were present...

We present Keck Interferometer observations of TW Hya that spatially resolve its emission at 2 µm wavelength. Analyzing these data together with existing K-band veiling and near-infrared photometric measurements, we conclude that the inner disk consists of optically thin, sub-micron-sized dust extending from ∼ 4 AU to within 0.06 AU of the central star. The inner disk edge may be magnetospheric...

Islamic teachings explained us everything related to our lives in the light of Quran and Sunnah. Some them are specified for Muslim women like feeding baby, abortion, Iddah veiling etc. Veil is most important part their lives. It protects from bad eyes stays away sins. There many terms used Hijab, Jilbab that identical meaning veil.Hijab a test woman. clear Hadiths hijab religious obligation, w...

We describe a technique for deriving effective temperatures, surface gravities, rotation velocities, and radial velocities from high resolution near–IR spectra. The technique matches the observed near–IR spectra to spectra synthesized from model atmospheres. Our analysis is geared toward characterizing heavily reddened pre–main sequence stars but the technique also has potential applications in...