Tag: "shell" at biology news
Ancient life form may help create newest technologies
...e microstructures to form a tiny, rigid shell. The shell
is composed of tiny silica nanospheres, and provid...e want at the nano level, as the diatom builds its shell
wall," Rorrer said. "For use as electronic materials, the germanium oxides need to be in a certain f...
Secret behind hard exoskeletons, spreading wings revealed
...ticle periodically in order to grow. The new outer shell
then hardens and its color darkens. Both processes... in the central nervous system are responsible for shell
hardening and pigmentation. The shells of blow flies that are treated shortly after they leave their...
'Rolling Store' provides model for overcoming barriers to healthy foods and better health outcomes
...lly a 16-foot pick-up truck enclosed with a camper shell
parked outside a local Baton Rouge community center once a week for four hours, stocked with healthy food choices such as fruits and vegetables. The difference was significant. The women who received information only continued to gain weight ...
Archaeologists announce discoveries at the ancient Maya site of Waka' in northern Guatemala
...a vaulted burial chamber that was built inside the shell
of an existing building atop the palace acropolis....nterment, which contained artifacts of greenstone, shell
and obsidian, provides significant information about the importance of this person during her life. ...
Mantis shrimp may have swiftest kick in the animal kingdom
...video shows the mantis shrimp's fist pummeling the shell
of a snail like a slow-motion glove smashing into the face of a boxer. Patek is currently conducting experiments which show that the blow yields a tremendous amount of force - well over a hundred times the mantis shrimp's body weight. In a short note...
Breakthrough Clemson research appears in Science
...s the Clemson team's discovery that Eastern Oyster shell
growth begins within blood cells. The research adv...om mantle tissue, which forms oyster skin, induced shell
growth. "New technologies are giving scientists the tools they need to answer the tough questions,"...
East African artifacts support evolution of symbolic thinking in Middle Stone Age
...acts, fish bones, mammal bones and two ostrich egg shell
beads in association with an assembly of Middle St...me of the artifacts, in particular the ostrich egg shell
beads are rare or unprecedented in the Middle Stone Age," said Marean. "Beads were not previously be...
Pollution history documented through shell remains provides tool to study ecosystem change
...al," Brown says. "And wear was present whether the shell
was thin or thick." By documenting what happe..."We can look at geochemical characteristics of the shell
to determine what kind of pollution has impacted a system to determine whether the local extinction...
Microbe's trick provides a template for willowy crystals
...e's material science masterpieces, substances like shell
and bone, things that have never before been made from scratch by human hands. "The hope is that this may inspire new routes for biomimetic synthesis," Banfield says. De Stasio notes that mollusks, combining a polymer matrix and a mineral, produce sh...
Marine sponges provide model for nanoscale materials production
...ears. For example, they have studied the abalone shell
for its high-performance, super-resistant, composite mineral structure. Now they are now looking to learn new biotechnological routes to make high performance electronic and optical materials. "We are now learning how to harness the biomolecular me...
UNC study may improve gene therapy safety
...ther as an intact virus or as a recombinant vector shell
affected gene expression minimally and in patterns not associated with potential harm to the host organism, the report said. In addition, exposure to the empty capsid of AAV - the protein coat of the virus devoid of DNA - also produced minimal respon...
Endangered sea turtles make a dramatic turnaround
...f the Caribbean." Weighing up to 200 pounds with a shell
some 3 feet in length, the hawksbill turtle has vanished from many areas of its former range around the world. It is hunted for food, eggs and its valuable shell, which is commercially sold as "tortoise-shell" for use in eyeglass frames, hairbrushes,...
Genetic master switch sends bacteria toward 'seafood dinner'
...to the water. When chitinase touches the discarded shell
material, it begins breaking down chitin, releasin...ssolved degraded chitin until they reach the solid shell
material. The bacteria then latch on and begin their feast. "The master switch gene appears to be...
Ebola virus-like particles prevent lethal Ebola virus infection
... and matrix protein (VP40). These VLPs resemble a shell
of infectious viral particles but lack the genetic material necessary for reproduction. When the VLPs were injected into mice, they activated both arms of the immune response. Specifically, they induced cell-mediated immunity via T cells and humo...
First view of giant crabs - at home on the slope
...ket. Although mostly sold at around 4kg and with a shell
of 20 cm or less, the crab reaches a massive 13.5 kg. The Tasmanian pot fishery expanded rapidly in the 1990's and is now targeted across southern Australia in Victoria, Tasmania, South Australia and Western Australia. Funded by the Tasmanian fishing...
Stepping way out: Scripps scientists watch clam feet elongate far from the shell
...ve only one foot) up to 30 times the length of its shell
to reach chemicals in marine sediment necessary for the survival of their symbionts, marine bacteria that live within the clams. To test the extension process, Dufour set up aquarium tanks with sediment to investigate how clams that require chemical...
New medicines at risk from biodiversity loss
...rming rates from the wild to supply the ornamental shell
trade as well as for biomedical research. Cone sn...since at least the 16th Century. A rare cone snail shell
was sold at an Amsterdam auction in 1796 for more than a Vermeer painting! Collectors still cherish ...
UC Riverside plant pathologist awarded $1 million grant to study virus assembly
... mature virus is termed a virion and consists of a shell
of protein units arranged around a central molecule of nucleic acid. A genome is all the DNA or RNA in a virus or an organism, encoding all its genes.) Rao explained that once a virus enters a host cell, it releases its nucleic acid (i.e., the infe...
New study of Europa may explain mysterious ice domes, places to search for evidence of life
...ed by blobs of ice from the interior of the frozen shell
that were being pushed upward by thermal upwelling...how these ice blobs can push up through the frozen shell
of Europa, which is likely about 13 miles thick," said Pappalardo of the astrophysical and planetary...
New tool helps researchers bone up on osteoporosis
...reases during management practices used to improve shell
quality and lengthen a bird's production life, Hester said. Previous studies by other researchers have found that osteoporosis accounts for 15 percent to 30 percent of total fatalities in hens. "If we can find genes associated with osteoporosis, we c...
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