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Tag: "machines" at biology news

Researchers examine carbon capture and storage to combat global warming

..., such as coal power plants, into relatively clean machines with regard to global warming. ''The notion is that the sooner we wean ourselves off fossil fuels, the sooner we'll be able to tackle the climate problem,'' said Sally Benson, executive director of the Global Climate and Energy Project (GCEP) and ...

3-D ultrasound scanner provides in-depth view of the brain

...thout 3-D, you could miss something," he said. MRI machines are also expensive and require a dedicated space with special surgical tools that can be used in close proximity to the imagers' powerful magnets. Last year, the Duke team, led by biomedical engineering Professor Stephen Smith, reported the develo...

Dinosaur hearing, listening to muscle noise, quieter cubicles

...hers are devising various approaches to making the machines quieter. A UK team (including Deborah Hall, MRC Institute of Hearing Research, Nottingham, d.hall@ihr.mrc.ac.uk ) will present an active noise control system that cancels out some of the sound from the machines. The system takes into account known...

Mine runoff continues to provide clues to microbial diversification

...ed on identifying and characterizing the molecular machines of life. This study helps extend the initial studies of microbial isolates growth in carefully controlled laboratory settings to more real-world complicated microbial communities. ...

Woven scaffolds could improve cartilage repair

...hs with their painful joint," Guilak said. Most machines that produce fabrics weave one set of fibers that are oriented perpendicularly to another set of fibers. However, the machine that Moutos developed adds a third set of fibers, which creates a three-dimensional product. Also, since the scaffold is a w...

Walking molecule now carries packages

... one or both hands." Bartels explained that using machines at the scale of single molecules will ultimate be the most efficient way to build objects or to deliver material. "It resembles the way nature does it: the molecule carrier transports carbon dioxide across a surface," he said. "In the human body, t...

The influence of the menstrual cycle on the female brain

...nto the MRI, they were presented with virtual slot machines showing different probabilities of winning. When women anticipate uncertain rewards, they activate the brain regions involved in processing emotions, particularly the amygdala and the orbitofrontal cortex, to a greater extent during the follicular ph...

Cholera pathogen reveals how bacteria generate energy to live

...ree-dimensional structure. "The enzyme is like two machines together ?imagine the turbine and generator of a h... ions out of the cell," Barquera said. How the two machines are connected is one key question. In the first paper, published in the Journal of Bacteriology, ...

Regulating the nuclear architecture of the cell

...unctions: it manufactures ribosomes, the molecular machines that convert the genetic information carried by messenger RNA into proteins that do the work of life. Gary Karpen and Jamy Peng, researchers in the Life Sciences Division of the Department of Energy's Lawrence Berkeley National Laboratory, have now...

Nanotech tools yield DNA transcription breakthrough

...A segments into itself. "The study of molecular machines and the dynamics of their moving parts hold great ...is work will aid future studies of other molecular machines involved in cell replication, transcription and protein synthesis." The other study reported in ...

UCLA researchers unravel a mystery about DNA

...is work will aid future studies of other molecular machines involved in cell replication, transcription and protein synthesis." ...

Copying nature could save us energy, study shows

...insects and plants to produce incredibly efficient machines that carry out a range of impressive engineering feats," said Professor Vincent, Director of the Centre. "From the way desert cockroaches gather water to the way wasps bore a hole into a tree, nature has developed a myriad of ways of solving difficu...

Methane-belching bugs inspire a new theory of the origin of life on Earth

...into methane--are produced by multi-enzyme protein machines within the cell membrane that get their energy indirectly, from yet another protein machine that pumps an osmotic imbalance across the membrane. "It's difficult to imagine that something so complex could have emerged all at once," Ferry says, as the ...

Prevention is the best option: fighting autoimmune diseases

...tometry equipment at the Centenary Institute. The machines use laser beams and advanced optics and electronics toanalyse and purify many kinds of cells at a rate of over 25,000 cells every second. This technology is able to produce results that cannot be obtained by any other method as it allows every cell t...

UCLA study of community health project shows how group dynamics affect fitness, eating habits

Imagine break-room vending machines featuring fruit juice and vegetables instead of cookies and soda pop. Consider colleagues who insist on mid-morning group exercise breaks and applaud a lunchtime workout rather than criticizing the cut of the sweat suit. Ponder an organizational cult...

Basic work on E. coli identifies two new keys to regulation of bacterial gene expression

... RNA makes up the bulk of ribosomes, the molecular machines that make proteins and are present in huge numbers in all cells. Since so much of the cell's energy is used to make ribosomes, control of ribosomal RNA transcription is particularly crucial to a cell's well-being. "This work is basic to the growth ...

Discovery of agile molecular motors could aid in treating motor neuron diseases

...detail is necessary for building nanotechnological machines that, for example, could replace defective motors....olve cellular motors and also construct nano-scale machines based on these biological motors," says Goldman. ...

Molecular DNA switch found to be the same for all life

...gulation of hundreds and even thousands of protein machines at different sites throughout the genome. Furtherm...yotic genomes makes it difficult for these protein machines to access the DNA. Because of this complexity, the mechanism for initiating DNA replication in euka...

Many cleaners, air fresheners may pose health risks when used indoors

...r air, but is also produced indoors by some office machines such as copiers or printers, and by some devices marketed as "air purifiers" that purposely emit ozone into the indoor environment.) The research team's first task was to determine which household products contain terpenes and glycol ethers, and in ...

New potential drug target in tuberculosis

...ial for the organism because it activates cellular machines that drive the bacterium's metabolism. Stefan Kaufmann's department at the MPIIB has specialised in the biology of M. tuberculosis infection and its ability to survive in immune cells. They discovered that LipB is highly active in acutely infected ...

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