Tag: "guides" at biology news

Illustrated guidebook published for Chinese biomedical scientists and students

...able, practical, look-up guide much like the field guides to birdlife invented by Roger Tory Peterson. Their book has two main components: illustrations of laboratory equipment used for tasks like measuring, culturing, and separating; and a list of technical terms commonly used in laboratory life. Each tool...

Briggs takes to the molecular level Darwin's findings on plants sensing the direction of light

...ave for detecting light. This light sensing system guides seedlings through the soil and has profound influences on their development during the critical stage of seedling establishment and later as the leaves adapt to changes in the light environment. Briggs's research group has discovered the two-member f...

Clemson researcher places hope on pushy photons

...me. The cells are held in a container, and a laser guides them out one by one. The beam leads them into ano...ng beam of higher intensity. The second beam then guides the cell to the target location. An understanding of cell communication can lead to new treatments ...

Tiny tango: Device sorts microscopic particles with speed and precision

...nsion of particles through the pillar array, which guides the particles into different paths. When the particles emerge from the array, they have been sorted into any number of "channels" according to size. A device less than 1 square inch could easily yield hundreds of channels, each just 1 percent differe...

Small gene changes in some leukemia patients may explain varying responses to chemotherapy

...L may provide improved prognostic information that guides individualized therapeutic strategies for optimized medical management," they write....

Scientists report how protons induce water cages

...er molecules become part of a network or wire that guides the flow of protons." In nature, proton transport is unlike other things that move through water while retaining their molecular identity. Protons move much more quickly by trading water partners down the chain, like the executive desk toy...

Guiding gas exploration: U-M research offers inexpensive tool

...able to tell if there was methanogenesis, and that guides gas companies in terms of where to explore for microbial gas. It's a relatively inexpensive analytical tool, compared to other methods that have been used, such as stable isotope chemistry." The method has potential not just in Michigan, but also i...

Proven method of bone analysis may clarify human origins

... data from great apes and monkeys are not faithful guides to phylogeny, because it has been very difficult to derive the molecularly derived phylogenies," Kimbel said. "But here we've done that in a very quantifiable way." The method, Kimbel points out, is particularly important because it may provide a re...

How DNA copying enzyme 'stops the presses' for repair synthesizing enzyme

... this replication process, the polymerase normally guides the template strand and assembles the complementary, growing "primer" strand by pairing each base with the correct counterpart -- always pairing adenine with thymine and cytosine with guanine. When mismatches occur, the polymerase must instantly halt...

Study predicts conditions for sustainable lion trophy hunting

...ting is a controversial activity, and pressures on guides to deliver lions, regardless of their quality as trophies, can be enormous. Clients may pay as much as $100,000 for a hunting safari, and for that amount of money they expect to take home a lion, Whitman said. Given such expectations, a guide could e...

EMBL researchers discover key molecular 'switch' in eye development of medaka fish

...idelberg have discovered a molecular "switch" that guides the development of the eye in a fish called medaka. The interaction of two proteins determines whether cells divide or specialize at a key moment as the eye forms. Researchers are keenly interested in such switches because the decision to replicate o...

Fair to showcase innovations in natural resources, forestry

...uss their innovations and offer free publications, guides and software. For more information on the 2004 Innovation Fair, visit http://www.fs.fed.us/pnw/calendar/innovation-fair.shtml ....

Shark guide probes uncharted waters

...antic & Gulf of Mexico "is different from previous guides because it focuses on how to identify species while the fish is still in the water. Many guides rely on internal characteristics (which require that the fish be dead) or counting of body parts (wh...

Traditional Inuit ice treks guided from space

...our trip last year to the Admiral Inlet, the Inuit guides were using the Floe Edge maps, so that was how I learned of the service," explained Thomas Lennartz of Toronto-based tour company Arctic Kingdom. "During the winter we use it to get an idea of what the upcoming season of trips to the ice edge will be...

Understanding urinary tract infections

...ope to further define these stages and use them as guides in the search for new drugs. The study, to be published this week in the early online edition of the Proceedings of the National Academy of Sciences, also reveals that bacteria will sometimes shift into an inactive state, creating reservoirs of infec...

Growing human organs on the farm

...stead, the host animal's own developmental program guides the injected human stem cells into their final roles. "We take advantage of the growing nature of the fetus," Zanjani says. It would also allow doctors to obtain immune-compatible cells without having to create human embryos by therapeutic cloning. ...

Unraveling a protein, researchers uncover mechanics of anti-cancer agent

...atrix is an intelligent fabric. It connects cells, guides their movements and communication, and acts as glue between cells in living tissue, strengthening when needed." The matrix is made of several types of proteins, not just fibronectin. Each has a distinctive chemical composition and structure. The prot...

Major mutations, not many small changes, might lead way to new species

...that serve as a landing platform and yellow nectar guides that contrast with the pale pink flowers. The closely related M. cardinalis, on the other hand, has a deep, tubular shape that excludes bees but is easily probed by the slender beaks of hummingbirds, and has red or deep yellow-orange petals, colors b...

Who moved my cheese!?

...n about how the human brain processes information, guides behavior, and even enables us to be consciously aware of our own (though less smelly) world, and our own selves. "We are trying to understand how systems of neurons participate in the creation of perception, awareness, and behavior," says Cold Spring...

Zebrafish studies provide insight into blood-cell formation

...t zebrafish embryos have discovered a protein that guides the creation of new blood cells. The researchers, led by Howard Hughes Medical Institute (HHMI) investigator Leonard I. Zon and HHMI associate Alan J. Davidson at Children's Hospital, Boston, published their findings in the September 18, 2003, issu...

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