The long shadow

Casting a long shadow in the classroom

"What does one do when the giants pass away?" remarked a very famous microbiologist to me, soon after the death of Carl Woese in late 2012. I teach microbiology and introductory cell and molecular biology at a small undergraduate institution; Woese's example and contributions have long been part of every class I teach, and with good reason. Thus, I didn't know quite what to say to my colleague ...

Reliability in the Shadow of Long-Stall Instructions

Soft errors due to cosmic rays are now a major concern for both computer manufacturers and end users. Due to continually shrinking silicon manufacturing processes and greater chip integration, the chipand system-level soft error rate is projected to continue increasing for the forseeable future. Due to these concerns, chip manufacturers have long designed cache structures (generally the largest...

2 Strongly modular lattices with long shadow . Gabriele Nebe

To an integral lattice L in the euclidean space (R, (, )), one associates the set of characteristic vectors v ∈ R with (v, x) ≡ (x, x) mod 2Z for all x ∈ L. They form a coset modulo 2L, where L = {v ∈ R | (v, x) ∈ Z ∀x ∈ L} is the dual lattice of L. Recall that L is called integral, if L ⊂ L and unimodular, if L = L. For a unimodular lattice, the square length of a characteristic vector is cong...

The shadow.

The Shadow Meets the Mask: Pyramid-Based Shadow Removal

In this paper we propose a novel method for detecting and removing shadows from a single image thereby obtaining a high-quality shadow-free image. With minimal user assistance, we first identify shadowed and lit areas on the same surface in the scene using an illumination-invariant distance measure. These areas are used to estimate the parameters of an affine shadow formation model. A novel pyr...