Barium Carbonate Current Events | Barium Carbonate News | 3
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Nitrous gases and zinc in the crosshairs
The Senate Commission for the Investigation of Health Hazards of Chemical Compounds in the Work Area established by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) has issued the MAK and BAT Values List for 2009. This year's list contains 62 changes and new entries. view more (2009-07-29)
Studies of ancient climates suggest Earth is now on a fast track to global warming
Human activities are releasing greenhouse gases more than 30 times faster than the rate of emissions that triggered a period of extreme global warming in the Earth's past, according to an expert on ancient climates. view more (2006-02-17)
Deep-sea Ecosystem Engineers
Tube worms living at deep-sea oil seeps in the Gulf of Mexico significantly alter their habitat, similar to beavers altering the flow of a river. Researchers from Pennsylvania State University have just published an important finding in the journal Ecology Letters. A computer model of tube worm aggregations was created for Lamellibrachia luymesi,... view more... (2003-03-12)
Sea mollusks taste their memories to build shells
University of California, Berkeley, graduate student Alistair Boettiger has amassed a beautiful collection of seashells, but not by combing the beach. He created them in his computer. view more (2009-04-02)
Pitt, Berkeley Researchers Reconstruct Seashells to Model Nervous System Function
The enchantingly colored seashells that lend beaches their charm could also provide information about how the brain converts memories and sensory information into action. view more (2009-04-10)
Modeling of long-term fossil fuel consumption shows 14.5 degree hike in temperature
If humans continue to use fossil fuels in a business as usual manner for the next several centuries, the polar ice caps will be depleted, ocean sea levels will rise by seven meters and median air temperatures will soar 14.5 degrees warmer than current day. view more (2005-12-07)
Is CT-colonoscopy a valuable tool to detect colorectal cancer?
CTC (virtual colonoscopy) is a thin slice CT scan of the abdomen after adequate bowel preparation and colon insufflation in which data are reconstructed providing axial, multiplanar, and endoluminal views, in order to visualize internal colonic wall. view more (2008-10-13)
Dietary calcium is better than supplements at protecting bone health
Women who get most of their daily calcium from food have healthier bones than women whose calcium comes mainly from supplemental tablets. view more (2007-06-20)
Ocean acidification may contribute to global shellfish decline
Relatively minor increases in ocean acidity brought about by high levels of carbon dioxide have significant detrimental effects on the growth, development, and survival of hard clams, bay scallops, and Eastern oysters, according to researchers at Stony Brook University's School of Marine and Atmospheric Sciences. view more (2009-10-27)
Corals switch skeleton material as seawater changes
Leopards may not be able to change their spots, but corals can change their skeletons, building them out of different minerals depending on the chemical composition of the seawater around them. view more (2006-07-07)
Coral Reef Fish Make Their Way Home
Coral reef fish hatchlings dispersed by ocean currents are able to make their way back to their home reefs again to spawn, says a groundbreaking study published today in the journal Science. view more (2007-05-04)
2 oxygenation events in ancient oceans sparked spread of complex life
The rise of oxygen and the oxidation of deep oceans between 635 and 551 million years ago may have had an impact on the increase and spread of the earliest complex life, including animals. view more (2008-02-26)
Custom filler material produces excellent paint without common damage to mixing equipment
In order to produce paint of the highest possible quality, the raw materials must be tightly controlled. This includes the mineral fillers that make up to 50% of the paint. Filler materials like calcium carbonate, talc, kaolin and silica largely govern paint properties like UV resistance, weatherability, abrasion resistance and sheen. view more (2006-05-22)
Reining in Energy Guzzlers
An ammonia catalyst for the next generation? Ammonia is of central importance to chemical industry and to society as a whole. It is the starting point for the generation of such diverse products as fertilizers, man-made fibers, dyes, and even pharmaceuticals, to name a few. However, the synthesis of ammonia from nitrogen and hydrogen takes a lot... view more... (2001-03-09)
Got inexpensive contrast agent? Milk plays new role in imaging
In a new twist on the slogan "milk does a body good," radiologists are testing use of the dairy staple as a contrast agent in gastrointestinal imaging exams-with excellent results. view more (2006-11-30)
Modeling of long-term fossil fuel consumption shows 14.5 degree hike in temperature
If humans continue to use fossil fuels in a business as usual manner for the next several centuries, the polar ice caps will be depleted, ocean sea levels will rise by seven meters and median air temperatures will soar 14.5 degrees warmer than current day. view more (2005-11-02)
Report Warns about Carbon Dioxide Threats to Marine Life
Worldwide emissions of carbon dioxide from fossil fuel burning are dramatically altering ocean chemistry and threatening marine organisms, including corals, that secrete skeletal structures and support oceanic biodiversity. view more (2006-07-06)
New research study reveals origin of volcano's carbon-based lavas
Scientists studying the world's most unusual volcano have discovered the reason behind its unique carbon-based lavas. view more (2009-05-07)
Rounding up gases, nano-style
A new process for catching gas from the environment and holding it indefinitely in molecular-sized containers has been developed by a team of University of Calgary researchers, who say it represents a novel method of gas storage that could yield benefits for capturing, storing and transporting gases more safely and efficiently. view more (2008-02-04)
The largest colonic lipoma to date
Colonic lipomas have been found in related literature. One extremely rare case was recently reported in the November 14 issue of the World Journal of Gastroenterology because of its maximum diameter of 8.5 cm. view more (2007-10-29)
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