Students build submarine to track Octopuses
...adow's buoyancy system. Water flows into a ballast ring that circles the center of the sub. The amount of water that it takes on determines the sub's buoyancy, allowing it to submerge to any depth. Compressed air tanks on the sides of the sub blow this water out to bring Shadow to the surface. "Right now ...Complex cells likely arose from combination of bacterial and extreme-microbe genomes
...ranches of the tree of life were fused to form the ring of life," Lake said. The work is part of an effort supported by the National Science Foundation--the federal agency that supports research and education across all disciplines of science and engineering--to re-examine historical schemes for class...UCLA molecular biologists uproot the tree of life
...ournal Nature . "It's not a tree; it's actually a ring of life," said James A. Lake, UCLA professsor of molecular biology. "A ring explains the data far better." Lake initially titled the Nature article, "One Ring to Rule Them All....Social benefits of wound healing may not make any difference in animals with multiple partners
...ate or live in isolation. But the same doesn't ring true for monogamous mice, said Courtney DeVries, an assistant professor of psychology and neuroscience at Ohio State University. She and Erica Glasper, a doctoral student in psychology at Ohio State, took a closer look at the effects social bondi...New designed paclitaxel analog kills more cancer cells than natural product
...1998, 39, 199-203). Paclitaxel consists of a rigid ring system attached to a flexible side chain, but the ...der then designed molecules with bridges between a ring and a short side chain. "The strategy is a perfect example of structure based molecular design. The ...$5.5 million awarded to tree-ring research and climate studies
...iple Investigator for this study. Analysis of tree ring data throughout 'Monsoon Asia' will enable scientists to reconstruct and analyze regional climate histories over timeframes of centuries to millennia. The data will also reveal information on three major process regions that collectively drive much...BioCDS could hit No. 1 on doctors' charts
...could be paired up with a different protein. "Each ring of pits, or 'track,' on the CD could be coated with a different protein," he said. "Once the surface of a BioCD has been exposed to a blood serum sample - which would not need to be larger than a single drop - you could read the disk with laser techn...New papillomavirus target could lead to specific antiviral drugs for precancerous cervical lesions
...ed that the viruses link their genetic material--a ring of DNA, or plasmid--to the host's chromosomes by means of the viral protein, E2. "What was missing is the identity of the cellular protein with which the viral protein E2 interacts," said Howley. Researchers tried a variety of genetic approaches suc...Bay area to get unique x-ray microscopy resource
... at the ALS, an electron-based synchrotron/storage ring capable of generating x-ray beams that are one hundred million times brighter than those from the best x-ray tubes. With beams of this intensity, the new TXM will be able to image whole, hydrated cells at resolutions of about 35 nanometers, and spec...New paclitaxel analog kills more cancer cells than natural product
...ell, 1999, 96, 79). Paclitaxel consists of a rigid ring system attached to a flexible side chain, but the ...r then designed molecules with bridges between the ring and the side chain. "We thought that if we linked the bridge in the right position, maybe it would h...Microbe's trick provides a template for willowy crystals
...lifornia team used X-rays generated by the storage ring at the UW-Madison Synchrotron Radiation Center, and a novel microscope, to chart the chemical processes that govern the formation of the crystals, revealing a production template that could be at the heart of the biomineralization process. "The key i...Design of composite materials that detect terahertz discovered
...f repeated patterned copper elements, called split ring resonators, deposited on a quartz plate. Each split ring resonator is made up of two concentric copper squares, both having a small gap. The gap in the larg...PNNL recognized for commercializing technologies
...es, the Electrodynamic Ion Funnel uses a series of ring electrodes of increasingly smaller size in combination with both radio frequency and direct current electric potentials. This provides for the efficient collection of ions in the presence of gases where they normally would be lost, and a more focused...Workshop for new synchrotron light source at Brookhaven
..., third-generation, medium-energy electron storage ring that will produce X-rays 10,000 times brighter than the current National Synchrotron Light Source (NSLS) at Brookhaven Lab. The unprecedented brightness of NSLS-II will lead to many advanced experimental capabilities in a wide range of scientific dis...New X-ray sources speed protein crystallography
...any of the present limitations of existing storage ring X-ray sources, is based on the use of a superconducting linear accelerator (or linac) to continuously accelerate and recover the energy from an electron beam. This device, called an Energy Recovery Linac (ERL), will be able to produce X-ray beams of ...Surveillance and containment would be effective intervention against deliberate smallpox attack
...nd containment strategy, also known as targeted or ring vaccination, after the first case is recognized, all hospital workers who deal with smallpox would be immediately vaccinated, recognized smallpox cases would be placed in hospital isolation rooms, and their close contacts would be vaccinated and kept...Dazzling new light source opens at Stanford Synchrotron Radiation Laboratory
...e rebuild and upgrade of the SPEAR2 ring. The new ring has the capacity to easily add 8 to 10 more beam l... first electron beams circulated in the new SPEAR3 ring in mid-December 2003 and the first experiments are scheduled to begin in March. "SPEAR3 is a remarka...New antioxidants are 100 times more effective than vitamin E
...al name is -tocopherol, is a phenol: It contains a ring made of six carbon atoms with a hydroxyl group (OH...a nitrogen atom for one of the carbon atoms in the ring itself. With both substitutions he predicted that the resulting molecules, called pyridinols, should...JCI table of contents, January 2, 2004
... foreign antigen complexes are recognized. The CTL ring junction acts as a presynapse, setting the stage f...ytotoxic T lymphocytes form an antigen-independent ring junction AUTHOR CONTACT: Michael L. Dustin Skirball institute of Biomolecular Medicine, New York Un......te of Technology. In the 1970s, Leonard inserted a ring of benzene into a molecule of A. The result was an expanded base - xA - that was about one-third wider than normal A. The Stanford group used a similar technique to create xT - a synthetic base that's twice as big as natural T. The next challenge was...