Stem cell identity in culture may strongly depend on the cellular microenvironment
Identification, isolation and large scale culture of stem cells for potential medical applications is a major challenge in cell biology. In an upcoming PLoS ONE paper, researchers, including Andras Paldi, in Genethon (Evry, France) report, on the basis of experimental observations and comput...New report explores nanotechnology's future
...t, prediction and construction of materials on the scale of atoms and molecules. A nanometer is one-billionth of a meter, and nanotechnology typically deals with particles and structures larger than 1 nanometer, but smaller than 100 nanometers. To put this into perspective, the width of a human hair is app...UF scientists discover new genus of frogmouth bird in Solomon Islands
... birds and yes, even frogs.For perspective on the scale of evolutionary difference between genera, consider that modern humans and Neanderthals are different species within the same genus (Homo), while chimpanzees are our living relatives from a closely related genus (Pan), but that we share the same taxo...FSU pushing boundaries with environmentally friendly community
...mental footprint while also utilizing economies of scale to minimize energy production and manage wastewater," Cartes said. Among those economies of scale that the CAPS team will work to implement and analyze: Geothermal loops that circulate water t...University of Alberta researchers unravel intricate animal patterns
...be connected clearly to simple rules for the small scale communication between individuals. People have h...tion that give rise to the patterns found in large scale groups." In particular, the researchers looked at the direction from which animals can receive sig...Massive coral death atrributed to earthquake
...am reports "This is a story of mass mortality on a scale rarely observed. In contrast to other threats like...rd. "Most observers would attribute damage on this scale to more common reef threats in Indonesia such as cyanide fishing or bleaching. People monitoring Ind...Health disparities -- Genetics, society and race play an important role in access to healthcare
...ses and demographic information. The acculturation scale was based on a series of questions, such as, What language do you speak primarily at home English, Spanish or both?' Hamilton and Cockburn also wanted to identify "neighborhood-related" factors that could help predict population subgroups at high...New way to catch cancer's spread, rapid 3-D retinal imaging, more at CLEO/QELS 2007
...issue (up to 1 mm) with a resolution at the micron scale (at the level of blood cells, which is better than MRI resolution). Since hemoglobin is highly concentrated in red blood cells, imaging the locations where this molecule occurs can map out the distribution of red blood cells and reveal the vessels th...Massive coral death attributed to earthquake
...m reports: "This is a story of mass mortality on a scale rarely observed. In contrast to other threats like...rd. "Most observers would attribute damage on this scale to more common reef threats in Indonesia such as cyanide fishing or bleaching. People monitoring Ind...AACR Annual Meeting showcases significant developments in understanding and targeting cancers
...is deeply reflects the intent of our founders on a scale that they could scarcely imagine." AACRs Annual Meeting attracts attendees including leading academic, industry and government scientists, as well as clinical oncologists, students, cancer survivors, advocates and other health care professionals. S...Little lifesavers -- Nanoparticles improve delivery of medicines and diagnostics
...rld" because of their potential for use on a large scale at relatively low cost, Edwards said. The success of NanoPrecipitation depends in large part on the fact that some molecules are hydrophobic, or water-fearing, while others are hydrophilic, or water-loving. Hydrophobic substances, such as oil, do n...Scientists reveal structure of gateways to gene control
...re seeing in very high resolution on a genome-wide scale how nucleosomes control the expression of an organism's genes," said B. Franklin Pugh, professor of biochemistry and molecular biology and the study's lead investigator. The map pinpoints the locations of certain key gene-controlling nucleosomes --...Ewwwww! UCLA anthropologist studies evolution's disgusting side
...Fessler administered the same standardized disgust scale that he used with pregnant women to 307 women betw...uples separated by great spans of age, the disgust scale included scenarios involving incest and bestiality. Around the time of ovulation, women consistentl...Ultrathin films deliver DNA as possible gene therapy tool
...ugh to be therapeutically relevant - whatever time scale that might turn out to be, " explains Lynn. The films start to break down when they come into contact with water. "The architecture of the film determines the manner in which [DNA] is released," Lynn says. In his lab, they have developed some films ...National Academies advisory: March 27 release of report on metagenomics
...ng world, and how a research initiative similar in scale to the Human Genome Project could facilitate advances in the field. The report will be released on March 27. ...Biologists produce global map of plant biodiversity
... diversity - environment relationships on a global scale may assist in a small, but important way so that such a fatal potential failure can be averted."...When your brain talks, your muscles don't always listen
... has been examining muscular force on a very small scale in the index finger, specifically, the first dorsal interosseous muscle. Located between the index finger and the thumb, this muscle contains 120 "motor units"--in other words, 120 individual neurons, or nerve cells, and the muscle fibers they activa...Liquidia Technologies announces $16M in Series B venture financing
...ed by New Enterprise Associates (NEA), will enable scale up of Liquidia's PRINTTM platform manufacturing capabilities, acceleration of preclinical testing and development in life sciences, and expansion of product development activities in specific alternative energy and materials science applications. The...Location, location -- Cell sizes, lives influenced by host size
...a lot of room to develop answers about why neurons scale up the way they do." More study is needed to understand the interplay between an organism and its cells, scientists say. "Despite the progress that has been made in cell biology, we still have a relatively poor understanding about general charact......ogies will play an important part in achieving the scale of study needed. "The time is right to apply the powerful tools of genomics to obtain a comprehensive view of what goes wrong at the DNA level in cancer," said Francis S. Collins, MD, PhD, director of the National Human Genome Research Institute a...