Tag: "formed" at biology news

Invisible gases form most organic haze in urban, rural areas

...r Research in Environmental Sciences show aerosols formed chemically in the air account for about two-thirds of the total organic haze in urban areas and more than 90 percent of organic haze in rural areas. The study was led by Qi Zhang, a former CIRES scientist now at the Atmospheric Sciences Research C...

Scientists gain important insights into acute promyelocytic leukemia

...ic acid receptor alpha) oncogene. This oncogene is formed by an abnormal translocation between two chromosomes and gives rise to a protein called a fusion protein. In APL, the fusion protein, always involving the transcription factor RARA, acts as a potent transcriptional repressor that interferes with gene...

Sea anemone genome provides new view of our multi-celled ancestors

...d gene in non-animals. The other five percent were formed through substantial modifications to very ancient genes." The novel genes of the eumetazoa are involved, to a large degree, with conversation among cells. "In the early animals, cells figured out how to talk to each other and coordinate their activ...

Prion propagates in foreign host

...d propagate in yeast. "We showed that the fusion formed a prion in yeast and it was infectious," Liebman said. "It's the first time a prion from one organism has been propagated in another organism that normally lacks that prion. It demonstrates that totally heterologous prion propagation is possible. "...

Science earns top honor from Spain's Crown Prince

...mmunications. The Prince of Asturias Foundation, formed in 1980 under the presidency of His Royal Highness, heir to the throne of Spain, honors scientific, technical, cultural, social and humanitarian work carried out internationally by individuals, groups or organizations, across eight categories. (See ...

Mother-of-pearl -- Classic beauty and remarkable strength

...s self-assembled, while only 5 percent is actively formed by the organism," she says. "It is one of the most efficient mechanisms you can think of." To gain insight into this self-assembly process, Gilbert and graduate student Rebecca Metzler examined the structure of abalone nacre using synchrotron radi...

Global warming is evaporating Arctic ponds, new study shows

...e recently disappeared because the permafrost that formed a largely waterproof barrier has melted, this is not the case here, say Drs. Smol and Douglas. Instead, the high Arctic ponds are evaporating due to warming. By measuring changes in water quality over their 24-year sampling window, they have shown th...

M. D. Anderson team identifies new oncogene for brain cancer

...that caused by PDGFB alone. The high-grade tumors formed by the combination were indistinguishable in their shape and brain-invasive behavior from human oligodendrogliomas. The combination also activated the Akt pathway, which PDGFB does not induce by itself. Combined with their earlier findings, this ...

Time-lapse recordings reveal why IVF embryos are more likely to develop into twins

...hown that the culture in which the IVF embryos are formed is possibly responsible for the embryos dividing i... is a fluid-filled cavity in the blastocyst and is formed on about day four or five when the embryo forms tight junctions between the cells around its periphe...

Support for chromosomal theory of cancer found in cancers' development of drug resistance

...cancer or from biopsies for breast cancer. Rasnick formed a company to market the device, which recently was acquired by Modern Technology Corp. Aneuploid scanning is already employed in some European countries to screen for cancer. ...

Researchers find gene that spurs development of the epididymis

...(Mouse gestation is about 19 days.) Before it is formed in the embryo, the epididymis is part of a structure called the Wolffian duct. When the male mouse embryo is about 13 days old, the Wolffian duct begins to grow and differentiate into the plumbing system connecting testes and vas deferens. This norma...

Cord blood may preserve insulin levels in children with type 1 diabetes

..., showing that beta cells producing insulin can be formed using cord blood, we are on track to help diabetes patients in the future. The first step, though, has to be quietening the immune system attack, and this is why the work in Gainesville is so important....

Weizmann scientists discover a new line of communication between nervous system cells

..., these extensions are covered by myelin, which is formed by a group of specialized cells called glia. Glial cells revolve around the axon, laying down the myelin sheath in segments, leaving small nodes of exposed nerve in between. More than just protection for the delicate axons, the myelin covering allows...

International team to honor 30th anniversary of deep-sea vent discovery in Galpagos

...l treasure of the world where Charles Darwin first formed his theory of evolution," she said. Roughly 50 scientists will attend the meeting, funded by the Alfred P. Sloan Foundation, which will include discussions about new-and controversial-issues facing vent science such as the onset of deep-sea minin...

Giant magnetocaloric materials could have large impact on the environment

...the magnetism-carrying gadolinium ions are quickly formed or broken, respectively, by the application or removal of a magnetic field. As an added bonus, the magnetic ordering temperature can be tuned by changing the ratio or germanium to silicon. "As a result of this work we now have a better understandin...

Nobel scientists Craig Mello and John Mather to speak on origins of life and universe

... the new telescope will explore the first galaxies formed in the universe and investigate where stars and planets are being born today. Craig Mello, 2006 Nobel Laureate in Physiology or Medicine, will give a presentation titled "Life on a Cosmic Scale: From the Primordial Soup to a Nobel Prize-Winning W...

Brazil's first oncology biotech launches

...and PR&D evolved from an institutional partnership formed by LICR and FAPESP in the 1990s. That partnership created the internationally acclaimed ONSA (Organization for Nucleotide Sequencing and Analysis) and Human Cancer Genome Project (HCGP), state- and nation-wide sequencing programs, respectively, that ...

Louisiana Tech researchers help find new sub-atomic particle

...of matter. Cascade b is the first observed baryon formed of quarks from all three families of matter. Prior to this discovery, only indirect evidence for cascade b had been reported by experiments at the Large Electron-Positron collider at the CERN Laboratory near Geneva, Switzerland. Cascade b is produc...

High cholesterol diets modify gene expression in atherosclerosis

... plaques fatty deposits gradually and irregularly formed in the main arteries, causing the narrowing of the blood vessel. Although there are many causes for this disease, UGR scientists focused on smooth muscle cells (SMCs) transformation into dedifferentiated and proliferative cells, able to carry lipid...

Massive herds of animals found to still exist in Southern Sudan

...r years of fighting northern Sudan, Southern Sudan formed an autonomous region as part of a 2005 peace agreement, and will hold a referendum on independence in 2011. I have never seen wildlife like that, in such numbers, not even when flying over the mass migrations of the Serengeti, said Fay. This could r...

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(Date:4/18/2014)... Asteroid and comet impacts can cause widespread ecological ... even global scales. But new research from Brown University ... ancient life at the time of an impact. , ... has found fragments of leaves and preserved organic compounds ... in Argentina. The material could provide a snapshot of ...
(Date:4/17/2014)... A drug under clinical trials to treat tuberculosis ... drugs that act against various bacteria, fungal infections and ... University of Illinois chemists and collaborators. , Led by ... determined the different ways the drug SQ109 attacks the ... target other pathogens from yeast to malaria and ...
(Date:4/17/2014)... of stem cell therapies to cure a variety of ... populations based on cell surface markers. Researchers from the ... is highly expressed in a type of stem cells ... in an article in BioResearch Open Access , ... The article is available free on the ...
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