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Tag: "mix" at biology news

Poaching, logging, and outbreaks of Ebola threaten central African gorillas and chimpanzees

...ver from decimated populations. "This devastating mix of threats leaves us on the brink of losing some of our closest living relatives," said Russell A. Mittermeier, president of Conservation International and chairman of the Primate Specialist Group of IUCN-The World Conservation Union's Species Surviv...

Where Bacteria Get Their Genes

...se for bacteria, because their genomes represent a mix of genetic material from their parental cells and from other species of bacteria. Ochman and his colleagues' work shows that bacterial lineages can still be traced by considering only the "traditional" forms of genetic inheritance. The widespread ex...

Study of energy and health in Africa focuses spotlight on charcoal and forest management

...tiple scenarios for future fuel use by varying the mix of wood, charcoal and petroleum-based fuels used in households and improving the sustainability of wood harvesting and charcoal production techniques. The best situation in Africa would be to transition from biomass fuels to petroleum-based fossil f...

Experiment station researchers to explore genome of disease-fighting fungus

...iners, you can incorporate the fungus as a potting mix amendment that would protect against root-rotting fungi," Kenerley said. Ebbole said their research will "provide resources for the entire scientific community," noting all of the analysis will be shared with other scientists to further other projec...

Where bacteria get their genes

...se for bacteria, because their genomes represent a mix of genetic material from their parental cells and from other species of bacteria. Ochman and his colleagues' work shows that bacterial lineages can still be traced by considering only the "traditional" forms of genetic inheritance. The widespread ex...

NASA study finds snow melt causes large ocean plant blooms

...e pressure differences generate monsoon winds that mix the ocean water in the Western Arabian Sea. This mixing leads to better growing conditions for tiny, free-floating ocean plants called phytoplankton. Lead author of the study is Joaquim Goes. He is a senior researcher at the Bigelow Laboratory for O...

Chemicals in tattoo inks need closer scrutiny

...e, yellow and white ink. Tattoo artists frequently mix inks to achieve the desired color, so the researchers selected their samples based on the most likely base colors. Because there have been no previous studies, they are using analytical techniques that can test for a wide variety of chemical compone...

Love at first smell

...ht different diseases, so it's important to have a mix of MHC types. Females use smell to identify partne...HC molecules: choosing only males with the correct mix of immune genes critical for the survival of future offspring. In the experiment females were foole...

Scientists rid stem cell culture of key animal cells

...e feeder cells were an important ingredient in the mix of culture materials required to keep stem cells in their undifferentiated "blank slate" state. Embryonic stem cells are capable of forming any of the 220 tissues and cells in the human body and, in culture, are constantly trying to migrate down diff...

New Technique for Tracking Gene Regulators

...s.For example, in one recent technique, scientists mix the regulatorprotein of interest (let’s say, CREB) with the entire genome of a celland let it bind. Then they fragment the genome into smaller pieces, 500to 1,500 nucleotide bases long. Using antibodies that specificallyrecognize and bind to CREB, th...

Columbia research lifts major hurdle to gene therapy for cancer

...tch is flipped on by PEA-3 or AP-1.When added to a mix of normal and prostrate cancer cells, the virusentered both but only produced the toxic protein inside the cancercells. All the prostrate cancer cells died while the normal cells wereunaffected.The same virus also selectively killed human cancer cell...

Wisconsin scientists grow critical nerve cells

...ktails constitute naturally secreted chemicals - a mix of growth factors and hormones - that provide the exact growing conditions needed to steer the cells down the correct developmental pathway. "You need to teach the [embryonic stem cells] to change step by step, where each step has different condition...

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