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Tag: "shell" at biology news

Unraveling the viral mechanism

...d the highly symmetrical ball-like surface protein shell of the episilon15 bacteriophage that infects Salmo...truding at one of the twelve vertices of the virus shell contain structures like tails that actually anchor the bacteriophage to the surface of the bacteria ...

Nano-particles effective in killing cancer with one-two punch of chemotherapeutics

...reast tumors. The unique properties of the hollow shell nano-particles, known as polymersomes, allow them ...on to the tumor. The large polymers making up the shell allow paclitaxel, which is water-insoluble, to embed within the shell. Doxorubicin, which is water-...

Paleontologists learn how not to become a fossil

...decaying organic matter, which is not favorable to shell preservation." The team also found that shell composition played virtually no role in distorting the bivalve fossil record, echoing the findings o...

UF scientists reveal ancient origin of vertebrate skeleton

...go, when multicellular animals first began to make shell and other hard body parts. About 40 million years into the process, jawed and jawless vertebrates branched into different paths from the starting point, like the two ascending lines in the letter "V." "The lamprey is like the great-, great-, great-a...

UF scientists reveal ancient origin of vertebrate skeleton

...go, when multicellular animals first began to make shell and other hard body parts. About 40 million years into the process, jawed and jawless vertebrates branched into different paths from the starting point, like the two ascending lines in the letter "V." "The lamprey is like the great-, great-, great-a...

Wild Gorillas Handy with a Stick

...n The Ape and the Sushi Master). After spotting a shell mound, Beatty saw a chimp “come ambling round a bend bearing an armful of dried palm nuts,?sit down beside a rock, select a nut, place it on a flat rock surface, and pound it with another rock to extract the meat. Thirty years passed before primatolo...

Oysters: The natural way to protect our shores

...irements would likely be reduced on created oyster shell reefs as opposed to other heavier shoreline protec...rs evaluated the effectiveness of six experimental shell reefs on both low and high wave energy shorelines in coastal Louisiana. The areas chosen were condu...

Oceans turning to acid from rise in CO2

...ve the acidic water could interrupt the process of shell and coral formation and adversely affect other organisms dependent upon corals and shellfish. The acidity could also negatively impact other calcifying organisms, such as phytoplankton and zooplankton, some of the most important players at the base o...

Field tested: Grasslands won't help buffer climate change as carbon dioxide levels rise

... the building blocks of the carboxysome, a protein shell which is the best-studied microcompartment." The ... is how tightly packed they are. That tells us the shell plays an important role in controlling what comes in and goes out. When we saw how the many hexagons...

Nighttime Dying Linked To Sleep Apnea From Brain Cell Loss

... the building blocks of the carboxysome, a protein shell which is the best-studied microcompartment." The ... is how tightly packed they are. That tells us the shell plays an important role in controlling what comes in and goes out. When we saw how the many hexagons...

New discovery blurs distinction between human cells and those of bacteria

... the building blocks of the carboxysome, a protein shell which is the best-studied microcompartment." The ... is how tightly packed they are. That tells us the shell plays an important role in controlling what comes in and goes out. When we saw how the many hexagons...

MWG Biotech expands siMAX?siRNA portfolio with new scales, lengths and design tools

.... "Teenagers are very pupal ?they go inside their shell and withdraw," Thummel says. "Steroid hormones take over your kids, and they look very different and behave very different than they did previously. It happens more rapidly in insects, but they go through a transformation in very much the same way." ...

Scientists find a maturity gene in fly

.... "Teenagers are very pupal ?they go inside their shell and withdraw," Thummel says. "Steroid hormones take over your kids, and they look very different and behave very different than they did previously. It happens more rapidly in insects, but they go through a transformation in very much the same way." ...

Fundamental discovery -- Bone fracture

...ized structures together when studying the abalone shell six years ago. "It's truly remarkable to find the same fundamental mechanisms operating in bone," said Morse. He noted that these mechanisms give young healthy bone its tremendous resiliency and resistance to fracture, and actually help heal small m...

Mutation in clams protects against paralytic shellfish poisoning but raises human health risk

...describes differences in the responses of two soft shell clam populations -- one in the Bay of Fundy and the other in the Lawrencetown estuary in Nova Scotia -- to saxitoxin as well as tetrodotoxin, a powerful toxin derived from the puffer fish. The lead author is V. Monica Bricelj of the Institute for Ma...

Scientists find fossil proof of Egypt's ancient climate

...ion about the climate then," Kieniewicz said. "The shell is an archive of the snail's life. The analyses give us snapshots of what the conditions were like in that lake basin." The geochemical analyses confirmed that the water was a stable standing body for many years. "Strong evaporation of the lake, eno...

Study shows nanoshells ideal as chemical nanosensors

...c shell, typicallyeither gold or silver. The metal shell "captures" passing light andfocuses it, a property that directly leads to the enormous Ramanenhancements observed. Furthermore, nanoshells can be "tuned" tointeract with specific wavelengths of light by varying the thickness oftheir shells. This tuna...

Scientists Replicate Hepatitis C Virus in Laboratory

... did not have the HCV viral envelope, a protective shell of lipids and proteins that surrounds the viral RNA in fully-formed HCV. The naked HCV construct was then placed into human liver cells in a cell culture medium. The NIDDK scientists found evidence of HCV proteins and HCV RNA within the human liver ...

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