Medium in Biological News

Drugs needed to preserve eggs for reproduction need to be given in stages

... best when used incrementally: putting some in the medium around the egg and a few minutes later adding a ... the sugars currently are placed in the medium along with the cryoprotectants, where it appears ... a cell membrane so high concentrations in the medium reduce the amount of fluid that moves inside the ...

Researchers disprove 15-year-old theory about the nervous system

... subunits that are classified as light, medium and heavy. Loss of all neurofilaments in the axon ... that are located within the heavy and medium subunits. In a previous study, genetically removing the region of the medium subunit that is modified impaired growth and ...

The medium is the message: Manipulating salmonella in spaceflight curtails infectiousness

... in on the importance of the microbial growth medium to gene expression and virulence during ... bacteria cultured in a nutrient-rich medium known as Lennox Broth (LB) consistently displayed ... of five critical ions. The effects of this medium were dramatic, with the M9 cultures exhibiting a ...

Multiple Sclerosis: new MRI contrast medium enables early diagnosis in animal model

... stages of the disease with the new contrast medium and found significantly more inflammatory lesions ... The application of this new contrast medium was clearly superior to conventional contrast ... difficult to examine on MRI. New contrast medium accumulates better in MS lesions The results ...

Gypsy moth management made more efficient, cost-effective

... patches, they will be detected in the model as medium patches. For example, if an area contains 20 medium patches and 20 large patches, the model suggests ... money on reducing some of those large patches to medium patches. This strategy, ultimately, would be the ...

Newly created cancer stem cells could aid breast cancer research

... a recipe for a new chemically defined culture medium and managed to grow a different type of human ... cancer cells than other normal cells. The culture medium Ince created favors the growth of the human ... metastatic potential while the standard culture medium favors cells with low tumor-making potential. ...

Facile synthesis of nanoparticles with multiple functions advanced in Singapore

... has successfully transferred metal ions rapidly from water to an organic medium by mixing a solution of metal salts dissolved in water with an ethanol ... IBN protocol allows metal-based nanoparticles to be prepared in an organic medium using water-soluble, inexpensive, common metal precursors. This method ...

Plastics chemical retards growth, function of adult reproductive cells

... in steroid hormone production was quite dramatic. After 120 hours in a medium that included 10 micrograms per milliliter of BPA, mouse follicle cells ... steroid hormone levels. And at 120 hours, follicle cells grown in the BPA medium were 25 percent smaller than normal, the researchers report. A review ...

Armed beetles find a mate, whatever their size

... University in Japan have been monitoring the mating habits of large, medium and small Librodor japonicus males, and found that this particular species ... the males with the biggest jaws stand the best chance of winning. The medium sized beetles which are too small to beat the bigger males have developed ...

Great potential to improve collection, recycling of Europe's electronic waste, says UN report

... Only about 25% of Europes medium sized household appliances and 40% of larger appliances are collected for ... 60% for small appliances like MP3 players and hairdryers, as well as for medium sized audio equipment, microwaves and TVs and 75% for large appliances ...

'Green' energy from algae

... funds being provided by the KIT Energy Center. It is planned to establish a KIT "Algae Platform" for energy production from microalgae. In the medium term, pilot-scale and demonstration plants shall be built on the northern KIT campus, with the favorable conditions in terms of space and ...

Researchers team up to provide new hope for childhood hunger

... human health. Raise awareness in public and scientific circles about the consequences of childhood malnutrition and how to alleviate it. medium Term Goals: 5-10 years Develop a more effective management protocol for in-patient treatment of severe malnutrition. Deploy an effective ...

Researchers design first model motor nerve system that's insulated and organized like the human body

... techniques for growing various nervous system cells in serum-free media, including motoneurons, and here they attempted myelination using the growth medium they have worked with for many years. In the body, nerve cells grow in two distinct environments: In the peripheral nervous system (PNS), cells ...

Early initiation of Arctic sea-ice formation

... the lengthy polar darkness and freezing temperatures. "These diatoms provide the most compelling evidence for ancient sea ice, as they rely on this medium for their survival," said Catherine Stickley. Moreover, their analysis of quartz grain textural characteristics further supports sea ice as the ...

Report shows the power of US cities to mitigate climate change and steps they need to take to adapt

... and adaptation. The range of individual actions which are being taken by cities will add up to significant emissions reductions in the short and medium term. However, given the most recent estimates by scientists that emissions need to be reduced by 80% by 2050, the report finds these early steps to ...

Study on keeping nuclear bombs from US ports shows misplaced fear over cargo scanning cost

... number of containers virtually all those originating outside the U.S. would receive a rapid screening via low-cost, drive-through radiation and medium energy x-ray radiographic portals as they enter an international port. Containers that fail will not be placed in stacks for outbound containers, but ...

American Chemical Society's Weekly PressPac -- May 20, 2009

... only a fraction of a second. They note that William the Conqueror's Doomsday Book, written on vellum in 1086 AD, has survived 900 years. However, the medium used for a digital version of the book, encoded in 1986, failed within 20 years. The researchers describe development of an experimental memory ...

Development of an artificial simulator of the nervous system to do research into diseases

... thanks to the fact that the simulator "compiles" the behaviour of a neuron or several types of neurons in a first stage and next, it simulates medium and great-scale neuronal systems based on these pre-compiled models. "This fact means an essential technological advance and indisputably affects ...

Laughing hyenas, wailing levees, the sound of cheese and blaring bagpipes

... ocean for instance, the sound waves respond to the properties of the fluid. Scientists can use these responses to probe the characteristics of the medium -- the ocean or the atmosphere, for instance -- and one particularly powerful way of doing this employs a technique called "time reversal." In time ...

Eye cells believed to be retinal stem cells are misidentified

... cells and established stem or progenitor cells. The researchers also found that simply culturing the sphere-forming cells in the same growth medium as is used for stem cells caused them to activate genes characteristic of stem cells, yet remain adult ciliary epithelial cells. Dyer said that a ...

CHIs 5th Biomarker World Congress: Signature Event with Cutting-Edge Agenda

... of biomarker research spanning the pharmaceutical and diagnostic pipeline. The meeting brings together a unique and international mix of large and medium pharmaceutical, biotech and diagnostics companies, leading universities and clinical research institutions, government and national labs, CROs, ...

AGU journal highlights -- March 25, 2009

... Neutrino Oscillation Search (MINOS) underground neutrino detector in Soudan, Minnesota, with upper air temperature data from the European Centre for medium Range Weather Forecasts during the winters from 2003 to 2007. They find a strong positive correlation between muon rate and temperature. For ...

'Delicious' new grape debuts

... the flavor of the wine (2006 vintage) rated equal to those of 'Carlos' (a popular cultivar for wine) by a panel of 30 winemakers. The color is a medium to light red, generally lighter than many red muscadine wines. ...

Engineer devises ways to improve gas mileage

... reducing the drag of vehicles. Drag is an aerodynamic force that is the result of resistance a body encounters when it moves in a liquid or gaseous medium (such as air). Reduction in drag means less fuel would be required to overcome the fluid resistance encountered by the moving vehicle. Working with ...

Iowa State researchers developing clean, renewable energy for ethanol industry

... production beyond the fermentation of simple sugars in corn kernels. The researchers' idea is to use heat and oxygen to gasify biomass and produce a medium Btu gas (called synthesis gas) that a new catalyst can convert directly into ethanol. They'll also generate the gas using air to make a low Btu gas ...

Freezing prostate cancer does a man's body good

... the levels of prostate-specific antigen (PSA) in the blood. Of those patients, 112 (93 percent) had no evidence of cancerin spite of 72 being labeled medium to high risk for cancer recurrence. "There were no local recurrences in the areas we treated, and with the ability to re-treat the 7 percent of ...

Georgia goes bananas

... who want to expand the use of banana plants in the region. Krewer explained; "This research identified a number of outstanding cultivars of large, medium and small size adapted to the USDA middle 8b region. " ...

Reducing animal experiments through top-class research

... to produce more accurate results faster. Due to these advantages, this method has the potential to become established as a standard procedure in the medium term. By awarding the prize to the team of three researchers from Hanover the DFG is also giving recognition to the combination of top-class ...

'Fattysaurus' or 'thinnysaurus'? How dinosaurs measure up with laser imaging

... in the mid Cretaceous period, around 110M years ago. The team suggest Acrocanthosaurus probably weighed in at a similar mass to MOR555 and other medium sized adult T. rex at about 6 tonnes. The Strutiomimum sedens , whose name means "ostrich mimic", lived alongside T. rex in the late ...

UD research study to shed light on emerging seaborne pathogen

... States, according to the Centers for Disease Control. However, the agency suggests the number likely is much higher because labs rarely use the medium necessary to identify the organism, and cases go unreported. " Vibrio parahaemolyticus usually causes a gastrointestinal infection that lasts two ...

Developer of advanced computing memory, father of biochemical engineering, and innovative engineering educators win highest engineering honors of 2009

... Gaden established the journal BIOTECHNOLOGY AND BIOENGINEERING , where he served as editor for 25 years. The journal is recognized as the primary medium through which worldwide bioprocess engineering research is shared in the profession. After a brief time in industry at Pfizer Inc., Gaden spent ...

The gold standard: Biodesign Institute researchers use nanoparticles to make 3-D DNA nanotubes

... Arizona State University researchers Hao Yan and Yan Liu imagine and assemble intricate structures on a scale almost unfathomably small. Their medium is the double-helical DNA molecule, a versatile building material offering near limitless construction potential. In the January 2, 2009 issue of ...

Vidalia onions: Alternative to hand-transplanting proven effective

... ways to lower production costs for growers. The study results showed that sowing dates in early or mid-October did not affect total, jumbo or medium yields, and sowing onions in late October did not produce sufficient stand or yield to warrant harvesting. Variety also had no affect on yield of ...

New use for human hair

... source of nutrients. The study compared the productivity of four crops: lettuce, wormwood, yellow poppy, and feverfew, grown in commercial growth medium using untreated control, noncomposted hair cubes at differing weights, a controlled-release fertilizer and a water-soluble fertilizer. Results showed ...

Attitudes towards assisted reproduction and preimplantation genetic diagnosis

... widespread rejection. Within this general climate of disapproval, opinions are most hostile in France and Sweden The following scenarios register medium acceptance scores: In the case of women without a partner wishing to have a child, average acceptance exceeds the midpoint on the scale (5) in 7 ...

Benefits of breastfeeding outweigh risk of infant exposure to environmental chemicals in breastmilk

... of risk/benefit assessments in an individual compared to population effects. "When breastmilk was chosen by regulatory agencies as a handy medium for measuring environmental toxins, the public became alarmed that breast milk was contaminated. The authors, eminent authorities on the subject have ...

French scientist wins the Journal of Experimental Biology Outstanding Paper Prize

... when the foragers had to start thinking of their entire community? Starting out with 18 adult-only colonies, Dussutour offered them either a dilute, medium strength or concentrated sugar solution diet. Over the first few weeks, the colonies regulated their sugar intake to some extent, with the colony on ...

Scripps research scientists identify blood component that turns bacteria virulent

... toxin production in the laboratory setting. The mechanism behind this observation, however, was never uncovered. "It was observed that the best medium for toxin production was one that people believed mimicked conditions found in the blood of a human or animal host, where anthrax bacteria would find ...

Acrylic glass made of sugar

... tertiary butyl ether). The reason attributed by the awards judges to the industrial importance of the discovery was that altogether, in the medium to long term, up to ten percent of today's demand for MMA could feasibly be produced by biotechnological means. The world market is over 3 million ...

UD researchers show that plants can accumulate nanoparticles in tissues

... pumpkins for the study, Jin said, because they take in a lot of water and are easy to grow. The plants were grown hydroponically in an aqueous medium to which nanoparticles of iron oxide, or magnetite, a magnetic form of iron ore, were added. After 20 days of growth, the plants were cut into ...