Remote imagery aids in detecting and managing plant disease
...s reported that cotton root rot spots were readily visible from the air at high altitudes. These spots were then photographed by hanging a camera over the side of the aircraft. The stark contrast between healthy cotton plants and the bare soil where the pathogen had killed the plants made the spots stand out...Cleaner shrimp use rocking dance to advertise their service to clients
...s and crevices on the reef and are not immediately visible to client fish. Signals, therefore, are likely to be essential for cleaner shrimp to attract potential clients. In work now reported, Justine Becker and colleagues conducted field observations that revealed that the yellow-beaked cleaner shrimp uses...Tips from the journals of the American Society for Microbiology
...y reduced after exposure. "These data suggest that visible light could be used prophylactically to stabilize the normal microbial composition of plaque by suppressing potentially pathogenic BPB," say the researchers. "Compared with other forms of periodontal therapy (scaling, mouthwashes, surgery) this form...USGS workshop on the impact of carbon dioxide on marine life
...R) scientist Joanie Kleypas. "Coral bleaching is a visible consequence of warmer waters. In contrast, the effects of lower pH-ocean water on coral growth are not as visible, but they are probably just as important to the coral reef ecosystem." "Workshop on the Impacts of Increasing Atmospheric CO2 on Coral R...Ebola virus: from wildlife to dogs
...fected with the virus, nonetheless without showing visible clinical signs. In order to confirm that these dogs had indeed come into contact with the virus, the scientists looked for the presence of specific Ebola virus antibodies in their blood (3). The percentage of dogs carrying such antibodies increases l...Immune cells in the liver take a ride
...uorescent protein, which glows and makes the cells visible under a microscope. The researchers used a technique called intravital fluorescence microscope imaging to observe the behavior of the glowing cells in live mice. The study showed that the cells were undisturbed by the rapid blood flow, latching ...Forsyth scientists find blue light fights gum disease culprits
...apy, suggests that light in the blue region of the visible spectrum might be useful in preventing, controllin...phyrins are photosensitive, and, when activated by visible light, induce a photodynamic reaction that kills the microorganism within seconds. In embarking on t...Drezek wins Beckman Young Investigator Award
...ing methods she is developing use a combination of visible and near infrared (NIR) light and targeted nanoparticle contrast agents. The project includes development of imaging instrumentation and fiber optic probes, optical contrast agents and the software needed for real-time image analysis. Rather than foc...... technique to electronic excitations which require visible light for their excitation. In this way, they were able to study the all-important changes and connectivity in the electronic states of these coupled molecular systems. They found two main energy transfer pathways in which some molecules were by-pas...'Color-blind' method opens new doors in DNA sequencing
...es the researchers to take advantage of the entire visible spectrum, eliminating the problem of cross-talk between dyes, said Metzker. Because there are four lasers, scientists can manipulate the system so that each dye gives the same intensity of fluorescent signal, eliminating the need for further software...Same mutation aided evolution in many fish species, Stanford study finds
...lution turned to the same genetic switch to work a visible change in the fish. However, in the fin study the group wasn't able to pinpoint the exact genetic alteration. The group continues to wade out into nature, collecting additional stickleback species from around the world that can reveal whether particu...Breath may help diagnose infection
...ed breath in as little as an hour, long before any visible symptoms appeared. "However for this technology to be an effective diagnostic, immune markers which appear as a result of exposure to agents should be absent in uninfected populations," says Jackman. To determine whether the cytokine levels could b...World's largest rainforest drying experiment completes first phase
...their extensive root systems, avoiding most of the visible symptoms of drought stress. By the end of the five-year period of exclusion, many trees in the forest were drawing in water from more than 40 feet deep in the soil. Second, it was anticipated that when the trees ran out of water in the soil, they ...Defenseless plants arm themselves with metals
...arting with things we can measure, which are these visible traits, and then we work backwards." A question that has long stymied Salt and his colleagues centers on the origins of this trait. While essential as micronutrients, metals are toxic in high levels. Most plants have mechanisms that keep metals in th...Grizzlies set to invade high Arctic?
...gland notes that the grizzly bear find is a highly visible example of important changes occurring in the Arctic. "The Arctic is very large and diverse, and this complex but exciting environment is just coming into focus for Canadians in general. It's now a mainstream issue."...Tailing the cause of a rare heart disease
...n. High-speed video of the fish's beating heart -- visible because the fish are translucent -- indicated that the pumping function of the heart was dramatically reduced. However, the researchers turned to the fish's translucent tail to confirm independently that blood flow was, indeed, reduced in the treated...Genome of deadly amoeba shows surprising complexity, evidence of lateral gene transfer
...ic lineages because the amoeba lacked many of the visible traits of eukaryotic cells (such as endoplasmic reticulum, golgi apparatus and mitochondria) and also shared some bacteria-like traits. While the Nature study catalogs a reduced genome (sometimes characteristic of an organism's transition to a...The world's smallest synchrotron, MIRRORCLE-6X, now commercially available
...capability where biological soft tissue is readily visible vs. conventional X-ray images, to nondestructive testing where metal, plastic, and rubber parts can be imaged simultaneously. The future looks bright for the World's smallest synchrotron. Continued research promises to boost MIRRORCLE-6X output to e...ASU researchers finds novel chemistry at work to provide parrot's vibrant red colors
...tion in color within a species at least in colors visible to us. Parrots in general may not be using color in the classic cases of mate choice or competitive ability," he said. "Exactly why they are so uniformly colored remains an interesting mystery to us one we want to investigate." "There is a sea......contact lines into account. Such a contact line is visible in the upper right image in Figure 1. In such a situation, the contact angle is not determined by the classical Young equation but can vary over a wide range of values. A surprising prediction of the new theory is that the experimentally observed pol...