Archive: 04/25/2006

Our Universe: A Quantum Loop

“There are two classical branches of the universe connected by a quantum bridge. This connects the former collapse with the current expansion.” While Abhay Ashtekar and his colleagues, Tomasz Pawlowski and Parampreet ...

Apr 25, 2006 4.6 / 5 (140) 5 feature

The comet with a broken heart

Comet P73/Schwassmann-Wachmann 3 (SW 3) is a body with a very tormented past. This comet revolves around the Sun in about 5.4 years, in a very elongated orbit that brings it from inwards the Earth's orbit to ...

Apr 25, 2006 5 / 5 (4) 0

Natural selection at single gene demonstrated

Biologists seeking elusive proof of natural selection at the single-gene level have a powerful new tool at their disposal. Chris Toomajian, postdoctoral researcher in molecular and computational biology in the USC College ...

Apr 25, 2006 3.8 / 5 (6) 0

Nanedi Valles valley system on Mars

These images, taken by the High Resolution Stereo Camera (HRSC) on board ESA's Mars Express spacecraft, show the Nanedi Valles valley system, a steep-sided feature that may have been formed in part by free-flowing ...

Apr 25, 2006 4 / 5 (5) 0

UC Berkeley extends reach to iPod generation

Further extending its curricular reach to the iPod generation, the University of California, Berkeley, today announced "Berkeley on iTunes U," a free service that makes video and audio recordings of a growing ...

Apr 25, 2006 4.6 / 5 (7) 0

Nano World: Nanotubes may unfold proteins

Bottling proteins in nanotubes may cause them to unfold, which may drive researchers exploring nanotubes as drug-delivery vehicles to rethink their strategies, experts told UPI's Nano World.

Apr 25, 2006 4.1 / 5 (9) 0

Targeted Nanoparticles Destroy Prostate Tumors

Biodegradable polymer nanoparticles, linked to a protein-binding nucleic acid known as an aptamer and loaded with the anticancer agent docetaxel, can target and kill prostate tumors growing in mice. Using this targeted nanoparticle ...

Apr 25, 2006 4.2 / 5 (25) 0