Providing computer models that accurately characterize the appearance of a wide class of materials is of great interest to both the computer graphics and computer vision communities. The last ten years has witnessed a surge in techniques for measuring the optical properties of physical materials. As compared to conventional techniques that rely on hand-tuning parametric light reflectance functi...

Space in the vicinity of atmosphereless bodies inthe Solar system is often populated by dustoriginating from the surface. Fragments of thesurface are ejected mostly due to hypervelocitymeteoroid impacts. It is also possible that materialfrom sub-surface layers may be vented throughcracks in the ice (as detected near Enceladus).The understanding of Europa's dust c...

This month's installment of Generally Physiological considers an odorant receptor evolutionarily linked to mos­ quito preference for humans, the evolution of voltage­gated Ca 2+ and Na + channels, and the first single­ channel kinetic analysis of the bac­ terial pentameric ligand­gated ion channel ELIC. Remarkable as it might seem to any­ one trying to enjoy a summer eve­ ning outdoors, only 1...

ists, was born on the Fazenda Santa Rosa coffee plantation in Brodowski in upstate São Paulo in 1903, the second of 12 children from Italian immigrants from the Veneto region of Italy. Because of his family’s poverty, he did not complete his primary education. His skill and interest in painting and drawing, evident from an early age, led Portinari to begin his formal training in painting and co...

material presented is accurate and not overinterpreted, ius, L. one place where detailed information and primary cita-Extracellular Matrix–Cell Interactions is less successful , with chapters of uneven quality both in content and style. Overall this book suffers from being primarily a meeting report. The title of the book is an unfortunate choice because cell adhesion, the major form of cell si...

As a reader of this journal you are probably a professional scientist with an interest in communicat­ ing the importance of what you do to the world at large. We share that interest, and advertise to journal­ ists the work we publish that we feel most likely to be of general interest, via press releases on the EurekAlert! website. This works very well, and papers in Current Biology are frequent...

Caravan, and Hippodrome, " a year later adding the moniker " The Greatest Show on Earth. " Ever the showman, Barnum was renowned for promoting hoaxes, the most celebrated of which was the Feejee Mermaid, a mummified specimen boasting the head and torso of a monkey and the rear end of a fish. Such a ridiculous creature, what Richard Dawkins would refer to as a " fishkey, " half fish and half mon...

HE pushing and pulling forces that characterize the rocess of mitosis have fascinated and frustrated biolo-ists for over a century. While considerable progress has been made in understanding how these forces are used in mitosis, the nature of the molecules that generate the forces has remained obscure., have demonstrated that members of the kinesin su-perfamily of microtubule motors are likely ...

During the c igh tecn th Century the Cape was a malc-dominatcd society, at least in numcrica! terms. In 1749, for inslaucc, the i:iuif l ist s revcal that among thosc taxed \vcrc 4,871 a d u l t nialcs (made up of 1.243 hu r^hc r s , scvcnty-fivc frcc blacks, c i y h t y t h r e e kiicïhis. w h o wcrc soldier* and sailors relcascd hy the Dutch Hast Ind ia Company t o \u i rk for hurplicrs. ...

Letters to the Editor will be published, if suitable, as space permits. They should not exceed 1,000 words (typed double-spaced) in length and may be subject to editing or abridgment. To the Editor: The relationship between embolism and thrombosis as a cause of ischemic stroke is far from established. Not all ischemic strokes in patients with a cardiac source are caused by cardio-genic embolism...