Meteorites supplied Earth life with phosphorus
...eroids inward toward terrestrial planets also have dim prospects for developing life, Lauretta added....Revealing bizarre deep-sea secrets
...e deep sea can be destroyed even by the relatively dim lights of a ship at night. The traps are baited then left open on the seafloor. After a period of time, the doors close automatically capturing inside the animals that have come to feed. Traps are then retrieved and unloaded in a darkroom where Dr. ...Wasps' brains enlarge as they perform more demanding jobs
...rom living in a very constrained spatial area with dim light to working outside the nest where there is a complex sensory environment with higher light levels. Finally, they have to leave the nest to forage for materials and then locate their way home to the nest." He said social insects have relativel...Nomadic outposts of transplanted stem cells tracked in Stanford study
...protein called luciferase. This protein produces a dim light when it comes in contact with another molecu...nt glow. Like a campfire at a new settlement, this dim light pinpointed the cells' location. Although the light from luciferase isn't bright enough to see ...Mantis shrimp fluoresce to enhance signaling in the dim ocean depths
...t murky depths where the only light is a filtered, dim blue. Why does it need such complex vision? Marine...ce yellow-green to enhance their prominence in the dim blue light. Though fluorescence in marine animals is common - in corals and squid, for example - thi...Study shows how eye cells die when exposed to lead
... Rods are cells in the eye that help humans see in dim light. The other type of photoreceptors, or light-gathering cells, called cones are responsible for color and spatial vision. Cones are used primarily in daylight and for activities such as reading. "Lead is a toxicant, and when the retina is exposed...Jefferson Lab experiment generates THz radiation 20,000 times brighter than anyone else
... A few hospitals are already testing comparatively dim sources of terahertz light for detecting skin cancer. Overall, though, terahertz light still constitutes a gap in the science of light and energy. It inhabits a region of the electromagnetic spectrum not that well understood. Now that a way to gener...Researchers identify key pathway in the pupils response to light
...h no functional rods and cones still open wider in dim light and get smaller in bright light," Van Gelder explains. "How would the pupil know it was supposed to open and close if there weren't any working photoreceptors to detect light in the retina?" Part of the answer is that there still are cells th...Molecule helps pupils respond to light
...s, while the pupil begins to constrict normally in dim light, at higher intensities of light the reflex seems to 'hang.' That is, the pupil never constricts down to the same small size as in the normal mouse." Since the knockout mice still exhibited some pupillary light reflex, albeit diminished, Yau and...Getting at the roots of terrorism
..., inequality and large numbers of young men facing dim economic prospects - also are likely contributors to such terrorism. The United States and its allies have responded to the heinous attacks of Sept. 11 with a short-term campaign focused on the necessary but insufficient task of bringing the perpetra...New Stanford study casts doubt on developmental potential of adult stem cells
...ailed to verify adult stem cell plasticity, should dim the enthusiasm for pursuing research only in adult stem cells. "I hope it tempers the enthusiasm for adult stem cell plasticity. Maybe it's not the answer that it appeared to be," she said....Dinosaur ancestor's vision possibly nocturnal
...owed these direct ancestors to dinosaurs to see in dim light. The pigment, rhodopsin, was recreated based...out how archosaurs actually saw at night and under dim light conditions," adds Chang. "We can infer that their night vision was, at least on the level of t...Expeditions find no evidence of ivory-billed woodpecker
...ory-billed woodpecker should kindle much more than dim hopes of a dramatic rediscovery. He says that whether or not the bird still exists, the ivory-billed story demands full attention as a vivid symbol of what many view as the most comprehensive conservation failure of 20th Century America. By 1900, mil...Los Alamos researcher conducts volcanic voyeurism
...e infrared spectrometer has to rely solely on very dim thermal radiation to see the gases. Love learned that a pool of glowing lava in a caldera, or red-hot rocks being ejected into the sky could be used to provide enough illumination for him to get a look at the two gases and measure their concentratio...Turning off building lights reduces bird window-kill by 83%
...ce, the city has been asking downtown buildings to dim or shut off their lights in the spring and fall. Field Museum scientists have been checking for dead birds at the base of McCormick Place since 1978. Over the years, they have collected 29,842 birds of 140 species. The most common window casualty wa...Stanford scientist seeks participants in NASA hypergravity study
...t - the point at which peripheral vision begins to dim - or when the Doppler sensor indicates that the passenger has undergone a significant reduction in blood flow to his eyes. People tend to lose peripheral vision between 3 and 5 G, so the pretest should last one minute or less. However, as G forces in...Spinach protein could offer new hope for the blind
...e rod cells diminishes a persons ability to see in dim light and gradually can reduce peripheral vision. Age-related macular degeneration is a disease that affects the center of vision. It rarely leads to blindness but people with the disease have difficulty reading, driving and performing other activiti...... plants would have to be adapted for low pressure, dim light and relatively cool temperatures. There are plants on Earth that can handle the cold, but none has ever had to evolve for low pressure. Could traits be programmed in even if they're not available on Earth? Chris Somerville, a plant molecular bi...Conservation under the shade coffee canopy: ant-bird interactions in Panama croplands
...lved large, bulbous eyes in order to forage in the dim light of the forest. These birds would be less likely to fly through bright open spaces in order to reach coffee areas which are often like isolated islands of shade in the middle of pastures and recently cleared fields. In addition, the drier and w......orvisual signaling. To enhance the effect in the dim depths Widder believes thatthe octopus may have first evolved a reflective layer in the back of the suckersand then further enhanced their visibility with bioluminescence. These modifiedsuckers may also aid in attracting the primary prey item found ...