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UniSci Weekday Archives

Surprise! Young Stellar Clusters Found In Old Galaxy
Combining data from the NASA/ESA Hubble Space Telescope (HST) and the ESO Very Large Telescope (VLT), a group of European and American astronomers have made an unexpected major discovery.

Systematic Pattern Of Rainfall Across U.S. Discovered
Meteorologists have long known that summer thunderstorms and heavy rains are difficult to predict. They pop up quickly and disappear within a few short hours.

Knapweed Chemical May Be Basis Of 'Green' Herbicide
Scientists have speculated for decades that spotted knapweed is able to spread over large areas because of a secret weapon -- an ability to release a chemical that kills surrounding plants.

Structure Of Key Interbacterial Chat Protein Solved
A decade after microbiologists began to suspect that many groups of bacteria can communicate -- by releasing and detecting chemical pheromones to gauge their population density -- the molecular structure of a key protein in this interbacterial communication has been solved.

Cells Flip Molecular Switch Before Sending A Message
It's a wonder cells make it through the day, with the barrage of cues and messages they receive and transmit to direct the most basic and necessary functions of life.

Brown Algae Phylogeny Turned Completely Upside Down
According to fellow phycologists, algae expert Stefan Draisma from the Leiden University in The Netherlands has turned brown algae phylogeny completely upside down.


Antivaccination Websites Rely On Emotion, Not Evidence
Websites that question the safety and benefits of immunizing children rely heavily on emotional appeals rather than scientific evidence.

Study Throws New Light On How Gene Switches Operate
Faulty regulation of genes is a common basis of many human diseases, including many cancers.

Linking Microscope Images To Quantitative Information
A team of computer scientists working with cell biologists at Lawrence Berkeley National Laboratory has created BioSig, a web-based bioinformatic system that links collections of microscope images to a wide variety of quantitative experimental data.

Explaining False Negative Results On Some Pap Tests
Some women may be getting false negative results on their routine Pap tests -- the traditional method to detect cervical cancer early -- because aberrant tissue changes can keep abnormal cells from being picked up during the exam, according to a study released today.

Change In One Base Pair Can Create A Typhoid Mary
Salmonella enterica causes approximately 16 million cases of typhoid fever worldwide, killing around 500,000 people per year.

Romans Preferred Small-Scale Systems For Drainage
Contrary to common opinion, the Romans had several systems for the supply and drainage of water. And they preferred small-scale provisions such as cesspits, wells and rainwater tanks.


Anti-Infection Protein Seen In Aggressive Cancer Cells
A protein known for its role in helping to provide the body's immune system with a line of defense against infection has unexpectedly been discovered in cancer cells that were removed from aggressive carcinomas of the breast and colon.

How Organisms Protect Themselves Against Transposons
At the Hubrecht Laboratory in Utrecht, biologist Sylvia Fischer has discovered how organisms protect themselves against transposons.

Protein Movement Can Be Simulated Three Times Faster
Protein movement can be simulated three times as fast than had been thought possible up to now.

Ethical Questions About Stem Cell Research Considered
A pioneering Johns Hopkins stem cell expert and one of the institution's leading bioethicists have won a multi-year grant from the Greenwall Foundation to develop far-reaching recommendations on a "second generation" of ethical questions about stem cell research.

Fitness May Protect Against Heart Attacks: New Study
Physical fitness may have an anti-inflammatory effect that protects against heart attacks, according to a report in today's rapid access issue of Circulation: Journal of the American Heart Association.

'Mad Hatters' Long Gone, But The Mercury Lingers On
Ever wonder where the term "mad as a hatter" came from? Mercury, once used extensively in the hat making process, caused a brain illness in many hatters.


Amphetamines Causing More Agony Than Anyone Realizes
The illegal drug ecstasy, already linked to brain and liver damage, may be causing more agony in the nation's streets and emergency rooms than anyone realizes, says a University of Florida medical expert.

Behavioral Interventions And Medical Outcomes Linked
Evidence continues to mount that a wide variety of behavioral interventions are having a major influence in producing useful changes in the risk, management and outcome of many diseases and health problems.

Fatal Crashes To Rise 155% By 2030 Among Older Drivers
Fatal car crashes are predicted to rise by 155 per cent among older drivers by 2030, finds research in Injury Prevention. Drivers aged 65 and older will account for one in four drivers involved in fatal crashes.

Fish's Sixth Sense Could Help Robots Navigate Oceans
Taking their cue from fish, scientists have built a navigational aid that will help robots and remote sensors find their way around the world's vast oceans.

Telescope Will Provide Ultra-High Angular Resolution
An international group of astronomers will design, install and operate a novel type of astronomical telescope for ultra-high angular resolution observations of stars, galaxies and quasars.

Computer-Controlled Robot Squeezes Ink Where Wanted
A new way to assemble complex, three-dimensional structures from specially formulated colloidal inks could find use in advanced ceramics, sensors, composites, catalyst supports, tissue engineering scaffolds and photonic materials.


Osteoporosis Is Underdiagnosed, Undertreated: Study
Osteoporosis, a disease of bone-thinning that puts women at risk of serious fractures, is underdiagnosed and undertreated.

High Glucose Following Heart Attack Could Be Marker
A Swedish study in tomorrow's issue of The Lancet confirms that people admitted to the hospital with an acute heart attack are at an increased risk of having undiagnosed diabetes or increased glucose intolerance.

Short Course Of Hormones Bolsters Older Men's Strength
A short course of hormone therapy appears to increase older men's strength and may help seniors continue their everyday activities throughout the aging process, according to a study released today at the Endocrine Society's 84th Annual Meeting in San Francisco.

Tracking And Timing Vibrations Through Molecules
Using an ultrafast laser spectroscopy technique, scientists at the University of Illinois at Urbana-Champaign have tracked -- and timed -- the flow of vibrational energy through certain molecules in their liquid state.

Antibodies In Nanotubes In Membranes Separate Drugs
Using what might be called a biological machine, University of Florida and Finnish researchers have demonstrated an experimental process for drug purification that one day could speed the production and decrease the cost of prescription drugs.

Manikin To Test Clothing Not Only Walks, It Sweats
A manikin called Walter that can be used to test new clothes for extreme environments is described in research published today in the UK Institute of Physics publication Journal of Measurement Science and Technology.

 

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