bundle in Biological News

University of Arizona scientist shares in discovery of microbe filaments' power

... discovered that tiny filaments on bacteria can bundle together and pull with forces far stronger than ... and to exchange genes with each other. When a bundle of Type IV pili retracts, it pulls with a force ... its own body weight. Retraction forces from a bundle are roughly 10 times higher, allowing the ...

Oscar Pistorius: Previously confidential study results released on amputee sprinter

... an advantage over other athletes not using the prostheses. The authors of the study are Peter Weyand of Southern Methodist University, Matthew bundle of the University of Wyoming, Craig McGowan of the University of Texas at Austin, Alena Grabowski and Hugh Herr of the Massachusetts Institute of ...

Shape matters in the case of cobalt nanoparticles

... spontaneously form chainslining up as a string of microscopic magnets. Then, when placed in an external magnetic field, the individual chains bundle together in parallel lines to form thick columns aligned with the field. These induced columns, says NIST physicist Angela Hight Walker, imply that ...

Synthetic biology can help extend anti-malaria drug effectiveness

... artemisinin a much cheaper but equally effective treatment. Restricting access to this technology to responsible manufacturers who will bundle artemisinin as part of an anti-malarial drug "cocktail" rather than selling it as a monotherapy should delay or even prevent malaria parasites from ...

From sheet metal elements to host cells: DFG launches 10 new collaborative research centers

... Research Centres had also initially given rise to apprehension 40 years on, they have more than fulfilled expectations. "Universities can bundle their resources, create local priorities and promote top-level research with the aid of Collaborative Research Centres," the DFG President ....

Breaking news: Study revives Olympic prospects for amputee sprinter

... law firm of Dewey & LeBoeuf on a pro-bono basis. In addition to Herr, Weyand and Kram, the panel of experts included Professor Matthew bundle from the University of Wyoming, an expert in the energetics and mechanics of sprinting performance; Craig McGowan, from the University of Texas at ...

Are humans hardwired for fairness?

... Science, a journal of the Association for Psychological Science, the brain finds self-serving behavior emotionally unpleasant, but a different bundle of neurons also finds genuine fairness uplifting. Whats more, these emotional firings occur in brain structures that are fast and automatic, so it ...

New technique yields more detailed picture of chromatin structure

... developed a technique for imaging cells under an electron microscope that yields a sharper image of the structure of chromatin, the tightly wound bundle of genetic material and proteins that makes up the chromosomes. Their findings appear in Nature Methods. Scientists have known for more than a ...

Futronic Announces Microsoft Vista and Windows 2008 Server Support for Its Fingerprint Logon Software

... charges per user license fee for FinLogon Enterprise Edition. That is, enterprises pay according to the exact number of users. No setup charge, bundle and additional fee. It is a very cost effective solution. Besides Windows Logon control, FinLogon also includes two free software tools which come ...

Stanford researchers make first direct observation of 3-D molecule folding in real time

... form a three-dimensional structure that does nothing. Sometimes, though, this snarl of loops and hairpins works as a riboswitch. The RNA begins to bundle up while it is being made, so the jumbled portion is attached to a tail still under construction. The riboswitch must have a tertiary structure, ...

Human embryonic stem cells remain embryonic because of epigenetic factors

... and drug metabolism, are active in highly specialized, mature adult cells. Although epigenetic markers attach themselves to the tightly wound bundle of protein material called histones that package and compress the DNA in the nucleus of each human cell, they do not change the cells DNA code. ...

Prenatal Stress Keeps Infants, Toddlers up at Night, Study Says

... Related studies now show that stress, which is associated with increased exposure stress hormones, like cortisol, may disrupt a childs formation of a bundle of nerve cells in the brain called the suprachiasmatic nucleus which act as a signaling system that tunes the bodys internal clock. This signaling ...

Ultrathin films deliver DNA as possible gene therapy tool

... to degrade and release the DNA. Large strands of DNA cannot normally penetrate cells, so Lynn constructs his films with special polymers designed to bundle the genes into small tight packages that cells can import. Once inside, the genes instruct the cells to make proteins. Lynn and his colleagues ...

Swimming 'to the left' gets bacteria upstream, and may promote infection

... has collaborated with a diverse team of scientists for this study. "Each cell normally has two to six flagella that can rotate together as a bundle and act as a propeller to drive the cell forward. Away from any boundaries, the cells swim in a straight line, but near a surface, opposing forces of ...

The shape of life: research sheds light on how cells take shape

... generate force. Then the bundles buckle to relieve compression stress. "Think of it like the 'wave' that fans create during a soccer game. One bundle buckles, then it sets off another bundle, then another bundle, until you get a sea of undulating stripes," Valles said. "What's exciting is that this ...

New egg freezing technique offers hope to hundreds of women

... of the egg during freeze-thawing, in particular to a part called the meiotic spindle which is involved in cell division. The meiotic spindle is a bundle of microtubules, some of which become attached to chromosomes, providing the mechanism for chromosomal movement. "Before freezing we observed ...

Scientists design potent anthrax toxin inhibitor

... enzymatic portions of the toxin enter the cell through a pore created for them by PA after it binds to the cell's outer surface. PA can be seen as a bundle of seven cigar-shaped parts, a molecular arrangement referred to as "polyvalent," meaning it displays multiple binding sites. The inhibitor ...

Many needles, many haystacks

... A protein consists of a sticky string of amino acids which usually folds up because of attractions between some of its atoms. This creates a bundle called a globular domain whose shape and chemistry determine what other molecules can bind to it. "If we could look at the chemical 'spelling' of ...