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Tag: "made" at biology news

Tracking sperm whales and jumbo squid

...are as mysterious today as they were when Melville made the following observation in Moby-Dick: "For thoug...d The study also revealed that the squid often made rapid nighttime dives from the surface to deeper waters preferred by whales. "One reason squid may b...

Discovery could lead to better control of hemorrhagic fever viruses

...upo virus. To identify its cellular receptor, they made copies of the "spike" protein, used by the virus to gain entry into cells, and added it to cells from African green monkeys, known to be highly susceptible to Machupo virus infection. Later, they broke the cells open and isolated the spike protein an...

Bypassing eggs, flu vaccine grown in insect cells shows promise

An experimental flu vaccine made in insect cells ?not in eggs, where flu vaccines c...form of a vaccine against human papilloma virus is made using the same insect cell line used in the JAMA study. In the study conducted by Treanor, togeth...

Mimicking how the brain recognizes street scenes

...ortex. By necessity, most of those experiments are made with simplistic artificial stimuli, such as gratings, bars, and line drawings that bear little resemblance to real-world images. "We put together a system that mimics as closely as possible how cortical cells respond to simple stimuli like the ones t...

ConocoPhillips establishes $22.5M biofuels research program at Iowa State

... soybean oil. Advanced biofuels are expected to be made from fibrous biomass such as the stalks and leaves from corn plants and switchgrass. "I'm pleased Iowa State University and ConocoPhillips will partner to research and develop new technologies for producing biofuels," said Iowa Gov. Chet Culver. "...

Hotspots of mercury contamination identified in eastern North America

...he Northeastern Ecosystem Research Cooperative and made use of 7311 observations for seven species. The study report in BioScience is accompanied by an overview article, written by Charles T. Driscoll of Syracuse University and colleagues, that summarizes current knowledge about mercury contamination in t...

When your brain talks, your muscles don't always listen

...recovering from strokes. Every move you make is made possible through a miraculous communications network involving the brain at the command center, the spinal cord, billions upon billions of nerve cells, and thousands of muscle fibers. "Muscles are the driving force behind our movements," Knight sa...

McBride shows DNA detective work with paper-eating bacteria that 'glide'

The eco-friendly fuel ethanol is usually made from grain, but the U.S. Department of Energy (DOE) would like to find other renewable materials that will be cost-effective alternatives, such as paper pulp, sawdust, straw and grain hulls. A UWM professor recently helped DOE do just that by analyz...

Stem cells act through multiple mechanisms to benefit mice with neurodegenerative disease

...study, to be published in Nature Medicine, will be made available by advanced publication at the journal's website on March 11, 2007. To determine whether stem cell biology might play a role in benefiting degenerative diseases, the investigators first chose to approach, as proof-of-concept, a mouse model...

UTSA researchers examine effects of global warming on Antarctic

...y," said Xie. During the journey, Xie and Cicek made visual observations of the sea ice for their own research and also transmitted meteorological data regularly into the world weather observing network for a variety of factors including water and air temperatures, wind speed and direction, visibilit...

Bisexual fruit flies show new role for neurochemical

... precisely because there was so much of it. "It made no sense," said Featherstone. "People figured you ...pses," Featherstone said. The gene mutation also made the flies bisexual, leading him to name the gene "genderblind." "The mutants are completely bisexu...

Robotic exoskeleton replaces muscle work

...ause the mechanical power added by the exoskeleton made the muscle stronger. However, in a relatively short time, the wearers adapted to the new strength and used their muscles less because the exoskeleton was doing more of the work. Their gait normalized after about 30 minutes. The next step is to te...

Africa's first large-scale HIV vaccine study launches

... HIV genes called gag, pol and nef. The vaccine is made in the laboratory and does not contain live HIV. The test vaccine therefore cannot cause infection. The hope is that these HIV genes will produce a cellular immune response to HIV and cause the body to make killer cells that are programmed to reco...

Fitness has fallen since the days of Ancient Greece

...ords of Thucydides, this second trireme would have made the journey in about 24 hours, rowing in shifts and eating while they rowed, so the ship could travel non-stop. Says Dr Rossiter: "From these details we can estimate the average sustainable ship speeds. Then, using the reconstruction we measured ...

A new study of living cells could revolutionize the way we test drugs

Researchers have made a breakthrough by detecting the electrical equivalent of a living cell’s last gasp. The work takes them a step closer to both seeing the ‘heartbeat?of a living cell and a new way to test drugs. To stay alive, individual biological cells must transf...

Renegade RNA -- Clues to cancer and normal growth

...rheostats that fine-tune how much protein is being made from each gene." That's why normally microRNAs always have appeared to stick close to the cell's protein-making machinery. But during a survey of more than 200 of the 500 known microRNAs found in human cells, Mendell's team discovered one lone...

Link found between immune system and high plasma lipid levels

...arly at the enzyme, hepatic lipase. This enzyme is made in the liver and secreted into the blood where it ... The livers of mice with T cells expressing LIGHT made and secreted much less hepatic lipase ?and consequently, had higher plasma lipid levels. The auth...

Progress toward artificial photosynthesis?

...o form carbamates. Their new class of catalysts is made of flat, graphite-like layers. The individual layers consist of ring systems involving carbon and nitrogen atoms. This porous material, called graphitic carbon nitride, is very heat-stable and, although it enters into many chemical interactions, it i...

Wired for sound: How the brain senses visual illusions

... in the Hillyard lab. "The surprising finding we made is that the illusion depends on a rapidly timed sequence of interactions between the auditory and visual cortical areas." "This is part of a set of new findings by scientists in the field that show how integration of multiple sensations can happe...

Molecular differences between early and advanced melanomas could provide new drug targets

...gnificant role in the progression of melanomas was made by scientists in the Department of Dermatology at Emory University School of Medicine and published in the March issue of the Journal of Clinical Investigation. Senior author is Jack L. Arbiser, MD, PhD, and lead author is Baskaran Govindarajan, PhD...

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