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Light in Biological News

Jet-propelled imaging for an ultrafast light source

John Spence, a physicist at Arizona State University, is a longtime user of the Advanced Light Source at Lawrence Berkeley National Laboratory, where he has contributed to major advances in lensless imaging. It's a particularly apt propensity for someone who works with x-rays, since they can't be ...

URI researcher sheds light on 'man-eating' squid; finds them timid, nonthreatening

KINGSTON, R.I. July 23, 2009 News reports last week about scuba divers off San Diego being menaced by large numbers of Humboldt's or jumbo squid have raised the ire of University of Rhode Island biologist Brad Seibel. As a leading expert on the species who has dived with them several times, he...

URI researcher sheds light on 'man-eating' squid; finds them timid, non-threatening

KINGSTON, R.I. July 23, 2009 News reports last week about scuba divers off San Diego being menaced by large numbers of Humboldt's or jumbo squid have raised the ire of University of Rhode Island biologist Brad Seibel. As a leading expert on the species who has dived with them several times, he...

2000-year-old statue of an athlete sheds light on corrosion and other modern challenges

The restoration of a 2,000-year-old bronze sculpture of the famed ancient Greek athlete Apoxyomenos may help modern scientists understand how to prevent metal corrosion, discover the safest ways to permanently store nuclear waste, and understand other perplexing problems. That's the conclusion of ...

The sound of light: Innovative technology shatters the barriers of modern light microscopy

In the past, even modern technologies have failed to produce high-resolution fluorescence images from this depth because of the strong scattering of light. In the Nature Photonics journal, the Munich researchers describe how they can reveal genetic expression within live fly larvae and fish by "...

Canadian synchrotron conference sheds light on new biomedical research

Science fact surpasses science fiction at the Canadian Light Source (CLS) synchrotron's 12th Annual Users' Meeting Thursday, June 18 at the Radisson Hotel in Saskatoon. Conference participants will hear about some of the newest biomedical results from the CLS, as well as ways that synchrotron tech...

Flexible solar strips light up campus bus shelter

There won't be anymore waiting in the dark at this campus bus shelter. New flexible solar cell technology developed by a group of engineering researchers at McMaster University has been installed to power lighting for night-time transit users. The researchers are also hoping that the prototy...

Researchers shed light on trading behavior in animals -- and humans

ATLANTA Humans, from ancient exchanges of food to modern day home mortgages, have bartered or traded to receive something that they couldn't achieve on their own. It's the basis of the economy, and it requires a leap of faith to believe that each party will receive a payoff in return for taking a...

University of Saskatchewan and Canadian Synchrotron researchers shed light on esophageal disease

SASKATOON, SASKATCHEWAN Canadian Light Source (CLS) staff scientist Luca Quaroni and Dr. Alan Casson, Head of the Department of Surgery at the University of Saskatchewan (U of S) used the synchrotron's infrared microscope to identify tissue afflicted with a condition known as Barrett's Esophagus f...

Studies shed light on collapse of coral reefs

CORVALLIS, Ore. An explosion of knowledge has been made in the last few years about the basic biology of corals, researchers say in a new report, helping to explain why coral reefs around the world are collapsing and what it will take for them to survive a gauntlet of climate change and ocean aci...

Pliable proteins keep photosynthesis on the light path

Photosynthesis is a remarkable biological process that supports life on earth. Plants and photosynthetic microbes do so by harvesting light to produce their food, and in the process, also provide vital oxygen for animals and people. Now, a large, international collaboration between Arizona State...

Consumers more likely to identify healthy food using traffic light nutrition labels

Amsterdam, the Netherlands: Consumers are five times more likely to identify healthy food when they see colour-coded traffic light nutrition labels than when labels present the information numerically by showing what percentage of the recommended daily nutrient intake each portion provides, new re...

Fertilization intensifies competition for light and endangers plant diversity

When grasslands are fertilized their productivity is increased but their plant diversity is diminished. In the last 50 years levels of plant-available nitrogen and phosphorous have doubled worldwide. This additional supply of plant nutrients is predicted to be one of the three most important cause...

Scientists shed light on inner workings of human embryonic stem cells

(Santa Barbara, Calif.) Scientists at UC Santa Barbara have made a significant discovery in understanding the way human embryonic stem cells function. They explain nature's way of controlling whether these cells will renew, or will transform to become part of an ear, a liver, or any other part...

Tiny differences in our genes help shed light on the big picture of human history

By examining very small differences in people's genes, scientists from Cornell University have developed a new tool for identifying big events in human history and pinpointing the origins of specific gene mutations. This research, published in the May issue of the journal GENETICS ( http://www.g...

Avian flu research sheds light on swine flu outbreak

AUDIO: Associate Professor Daniel Perez from the University of Maryland talks about the H9N2 virus. Click here for more information. ...

Early brain activity sheds new light on the neural basis of reading

Most people are expert readers, but it is something of an enigma that our brain can achieve expertise in such a recent cultural invention, which lies at the interface between vision and language. Given that the first alphabetic scripts are thought to have been invented only around four to five tho...

New light on bipolar treatment drugs

Lithium has been established for more than 50 years as one of the most effective treatments for bipolar mood disorder. However, scientists have never been entirely sure exactly how it operates in the human brain. Now, new research from Cardiff University scientists suggests a mechanism for h...

Singapore scientists synthesize gold to shed light on cells' inner workings

Highly fluorescent gold nanoclusters for sub-cellular imaging have been synthesized by researchers at the Institute of Bioengineering and Nanotechnology (IBN), one of the research institutes of Singapore's A*STAR (Agency for Science, Technology and Research). Measuring less than 1 nanometer in...

Genes from tiny algae shed light on big role managing carbon in world's oceans

WALNUT CREEK, Calif. Scientists from two-dozen research organizations led by the U.S. Department of Energy (DOE) Joint Genome Institute (JGI) and the Monterey Bay Aquarium Research Institute (MBARI) have decoded genomes of two algal strains, highlighting the genes enabling them to capture carbon a...

Queen's researchers shine light on compact fluorescent bulb problems

Kingston, ON Long touted as an energy-saving alternative for home lighting, compact fluorescent lightbulbs (CFLs) now have the potential to be even more efficient, as well as dimmable, thanks to research at Queen's University. Adopted by householders as a longer-lasting, energy efficient alte...

Cheap and efficient white light LEDs new design described in AIP's Journal of Applied Physics

COLLEGE PARK, MD, April 7, 2009 -- Roughly 20 percent of the electricity consumed worldwide is used to light homes, businesses, and other private and public spaces. Though this consumption represents a large drain on resources, it also presents a tremendous opportunity for savings. Improving the e...

Research synthesis shines light on several management options after fires in diverse ecosystems

Portland, Ore. March 19, 2009. No single decision-support system exists for selecting alternatives for postfire management. That thesis is what a recently released report on management after fire hinges upon. The publication, Effects of Timber Harvest Following Wildfire in Western North America, ...

Caltech and UCSD researchers shed light on how proteins find their shapes

PASADENA, Calif.--Researchers from the California Institute of Technology (Caltech) and the University of California at San Diego (UCSD) have brought together UCSD theoretical modeling and Caltech experimental data to show just how amino-acid chains might fold up into unique, three-dimensional fun...

New light shed on marine luminescence

The phenomenon of light emission by living organisms, bioluminescence, is quite common, especially in marine species. It is known that light is generated by chemical reactions in which oxygen molecules play an important part. In the animal world, these chemical reactions take place in special lumi...

Researchers shed new light on connection between brain and loneliness

Social isolation affects how people behave as well as how their brains operate, a study at the University of Chicago shows. The research, presented Sunday at a symposium, "Social Emotion and the Brain," at the annual meeting of the American Association for the Advancement of Science, is the firs...

Scattered light rapidly detects tumor response to chemotherapy

DURHAM, N.C. -- New technology developed by Duke University bioengineers can help clinicians more precisely detect whether specific cancer drugs are working, and should give basic researchers a powerful new tool to better understand the underlying mechanisms of cancer development. By interpreti...

Queen's chemist sheds light on health benefits of garlic

Kingston, ON A Queen's-led team has discovered the reason why garlic is so good for us. Researchers have widely believed that the organic compound, allicin which gives garlic its aroma and flavour acts as the world's most powerful antioxidant. But until now it hasn't been clear how allicin ...

Blue light destroys antibiotic-resistant staph infection

New Rochelle, NY, January 29, 2009Two common strains of methicillin-resistant Staphylococcus aureus , commonly known as MRSA, were virtually eradicated in the laboratory by exposing them to a wavelength of blue light, in a process called photo-irradiation that is described in a paper published on...

UD research study to shed light on emerging seaborne pathogen

A new research study at the University of Delaware seeks to determine why Vibrio parahaemolyticus , a microorganism that lives in seawater and is related to the bacterium that causes cholera, is expanding its range and virulence. V. parahaemolyticus is a leading cause of seafood-borne illnes...

First Science from the Compact Light Source: A miniature synchrotron for your home lab

In 2004 Lyncean Technologies announced the construction of the Compact Light Source (CLS), a miniature synchrotron which uses inverse Compton scattering to produce high-intensity, tunable, near-monochromatic x-ray beams. The CLS was designed to bring state-of-the-art protein structure determinati...

First images from medical beamline at Canadian Light Source

SASKATOON, SASKATCHEWAN A University of Saskatchewan (U of S)-led research team at the Canadian Light Source (CLS) synchrotron has received an early Christmas present. After several years of research, construction and testing, the unique-in-North-America BioMedical Imaging and Therapy facility (BM...

Tiny MIT ecosystem may shed light on climate change

CAMBRIDGE, Mass. MIT researchers have created a microbial ecosystem smaller than a stick of gum that sheds new light on the plankton-eat-plankton world at the bottom of the aquatic food chain. The work, reported in the January print issue of American Naturalist , may lead to better predictions...

UV-B light sensing mechanism discovered in plant roots

Scientists have discovered that plant roots can sense UV-B light and have identified a specific gene that is a vital player in UV-B signaling, the communication between cells. A study published Dec. 8 in the Early Edition of PNAS reveals that the gene RUS1 measures UV-B light levels and passe...

Kidney function discovery sheds light on genetic complexity of disease

To find a cure for cancer, haemophilia and other diseases, researchers need to be looking for complex, interacting genetic factors, according to the authors of a new study. A new study, published in the Journal of Clinical Investigation by researchers at the Centenary Institute, Royal Prince ...

Scientists shed light on evolution of gene regulation

Scientists at Penn State have shed light on some of the processes that regulate genes -- such as the processes that ensure that proteins are produced at the correct time, place, and amount in an organism -- and they also have shed light on the evolution of the DNA regions that regulate genes. The...

Scripps Research scientists shed light on how DNA is unwound so that its code can be read

LA JOLLA, CANovember 24, 2008Researchers at The Scripps Research Institute have figured out how a macromolecular machine is able to unwind the long and twisted tangles of DNA within a cell's nucleus so that genetic information can be "read" and used to direct the synthesis of proteins, which have ...

Researchers shed new light on catalyzed reactions

HOUSTON -- (Nov. 19, 2008) -- Rice University scientists on the hunt for a better way to clean up the stubborn pollutant TCE have created a method that lets them watch molecules break down on the surface of a catalyst as individual chemical bonds are formed and broken. "We can see the vibration...

Luminescence shines new light on proteins

A chance discovery by a team of scientists using optical probes means that changes in cells in the human body could now be seen in a completely different light. Prof David Parker from Durham University's Chemistry Department was working with experts from Glasgow University, and a team of intern...

Study sheds light on genetic differences that cause a childhood eye disease

Medical researchers at the University of Alberta have unlocked part of the mystery underlying a childhood eye disease. New research shows how children with some types of glaucoma end up with missing or extra pieces of DNA. The missing or extra bits of DNA are called copy number variations (CNV...
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