A study demonstrates that ibuprofen improves bone repair after surgery or a fracture
2012-07-04
A study conducted at the University of Granada hasdemonstrated that ibuprofen –a non-steroidal anti-inflammatory drug (NSAID)– has beneficial effects on bone repair after afracture or following bone surgery.
In vitro tests demonstrated that –unlike other NSAIDs– when a therapeutic dose of ibuprofen is administered, it has no negative effects on the proliferation and synthesis of obsteoblast osteocalcin, a cell which is directly involved in the formation and regeneration of bones.
Osteoblast cells are bone cells that synthesize the bone matrix. Consequently, osteoblasts ...
What's cooking? The UK's potential food crisis
2012-07-04
The Sustainable Consumption Institute research claims food which families now take for granted, such as meat and fresh vegetables, could become too expensive for many if global temperatures rise in line with the current trends and reach 4°C within the lifetime of many people.
Even if families continue to take steps to lower their carbon emissions from energy use, global farming emissions will continue to rise because of our growing appetite for energy-intensive foods and a rising demand to meet just basic living standards across the world.
Only by reducing consumption ...
The big sleep
2012-07-04
All zoo animals – and sometimes also wild animals – occasionally need veterinary treatment and anaesthesia is clearly required in many cases. For most animals the procedures are well established but for a variety of reasons it has proven difficulty to anaesthetize hippopotamuses. The thick skin and the dense subcutaneous tissue make it difficult to introduce sufficient amounts of anaesthetics and opioid-based anaesthetics often cause breathing irregularities and occasionally even death. In addition, the level of anaesthesia is only rarely sufficient to enable surgery to ...
Searching for an ancient syphilis DNA in newborns
2012-07-04
The ancient bones of newborns are very useful to recover the ancient DNA of the bacteria causing syphilis, the Treponema pallidum pallidum. This is the conclusion reached by a study led by Universitat Autònoma de Barcelona (UAB), which was able to obtain the genetic material from the bacteria in more than one individual, in what is considered to be the oldest case known to date. Several previous intents had only achieved to yield this material in one occasion and from only one individual.
Studying syphilis represents a challenge for researchers, in part because of the ...
Rising plasma offers clues to sun storms
2012-07-04
Doppler measurements that help track storms on Earth may also be useful for understanding storms on the sun.
A Rice University astrophysicist is part of an international team that combined Doppler techniques with images and data from a space-based telescope to observe, for the first time, loops of 1,800,000-degree Fahrenheit plasma flowing up from the sun's surface at more than 12 miles per second.
The loops, rooted in active regions near sunspots and guided by the sun's magnetic field, arch over the sun and may be the first signs of trouble spots, where plasma undergoes ...
Feathered saurians -- downy dinosaur discovered
2012-07-04
The new fossil find from the chalk beds of the Franconian Jura evokes associations with a pet cemetery, for the young predatory dinosaur reveals clear traces of fluffy plumage. It also poses an intriguing question: Were all dinosaurs dressed in down?
The fossil of the fledgling saurian, probably newly hatched when it met its end, is remarkable in many ways. First of all, juveniles are extremely rare in the dinosaur fossil record, so every new discovery provides insights into dinosaur nurseries. Moreover, this specimen is perhaps the best-preserved predatory dinosaur that ...
Toward an alternative for antibiotics to fight bacterial infections?
2012-07-04
VIB researcher Mohamed Lamkanfi, connected to the Ghent University, discovered that mice that do not produce the receptor protein NLRP6, are better protected against bacterial infections and can easier remove bacteria from the body. Therapeutic drugs that neutralize NLRP6 could be a possible treatment option, in addition to the use of antibiotics, for fighting bacterial infections. His research was published in the leading scientific magazine Nature.
Mohamed Lamkanfi (VIB – Ghent University): "Our lab investigates the role of the innate immunity, which is of crucial importance ...
Parents less likely to develop colds, Carnegie Mellon research shows
2012-07-04
PITTSBURGH—There is no question that being a parent is, at times, challenging both physically and mentally. However knowledge of the actual affect parenthood has on health has been inconsistent at best, until now.
New research led by Carnegie Mellon University's Sheldon Cohen and Rodlescia S. Sneed shows that being a parent influences health in a positive way. Published in Psychosomatic Medicine, the research provides the first evidence that, when exposed to a common cold virus, parents are 52 percent less likely to develop a cold than non-parents.
"We have had a long-term ...
Oh, baby! A young star flaunts its X-ray spots in McNeil's Nebula
2012-07-04
X-ray observations have revealed something curious about the young star that illuminates McNeil's Nebula, a glowing jewel of cosmic dust in the Orion constellation: The object is a protostar rotating once a day, or 30 times faster than the sun. The stellar baby also has distinct birthmarks—two X-ray-emitting spots, where gas flows from a surrounding disk, fueling the infant star.
The young star, V1647 Orionis, first made news in early 2004, when it erupted and lit up McNeil's Nebula, located 1,300 light years away in a region of active star formation within the constellation ...
Highlighting molecular clues to the link between childhood maltreatment and later suicide
2012-07-04
Philadelphia, PA, July 3, 2012 – Exposure to childhood maltreatment increases the risk for most psychiatric disorders as well as many negative consequences of these conditions. This new study, by Dr. Gustavo Turecki and colleagues at McGill University, Canada, provides important insight into one of the most extreme outcomes, suicide.
"In this study, we expanded our previous work on the epigenetic regulation of the glucocorticoid receptor gene by investigating the impact of severe early-life adversity on DNA methylation," explained Dr. Turecki. The glucocorticoid receptor ...
SMOS satellite measurements improve as ground radars switch off
2012-07-04
Over a dozen radio signals that have hindered data collection on ESA's SMOS water mission have been switched off. The effort also benefits satellites such as NASA's Aquarius mission, which measures ocean salinity at the same frequency.
We all know what happens when you place a cell phone too close to a speaker: seconds before the phone rings, that obnoxious buzz interrupts your favourite song.
This is radio interference – an unwanted reception of radio signals. Not only can it interrupt the music from your stereo, it can also impede satellite measurements.
ESA's ...
A geyser of hot gas flowing from a star
2012-07-04
Although Herbig-Haro (HH) objects come in a wide array of shapes, the basic configuration is usually the same. Twin jets of heated gas, ejected in opposite directions from a forming star, stream through interstellar space. These outflows are fueled by gas falling onto the young star, which is surrounded by a disc of dust and gas. If the disc is the fuel tank, the star is the gravitational engine, and the jets are the exhaust.
In Hubble's image of HH 110, one such turbulent streamer of gas can clearly be seen streaking across the frame.
The intricate structures within ...
Childhood adversity increases risk for depression and chronic inflammation
2012-07-04
Philadelphia, PA, July 3, 2012 – When a person injures their knee, it becomes inflamed. When a person has a cold, their throat becomes inflamed. This type of inflammation is the body's natural and protective response to injury.
Interestingly, there is growing evidence that a similar process happens when a person experiences psychological trauma. Unfortunately, this type of inflammation can be destructive.
Previous studies have linked depression and inflammation, particularly in individuals who have experienced early childhood adversity, but overall, findings have ...
Safety indicators confirmed for common treatment of heart defect
2012-07-04
A new study by medical scientists coordinated from the University of Manchester has for the first time used patients' results to establish that "safety indicators" for people taking anticoagulant drugs to regulate a common heart condition are correct.
More than 760,000 patients in the UK have atrial fibrillation (AF), a defect that causes an irregular heart rate. It is also known to increase the risk and severity of stroke.
The main treatment used to regulate the condition is an anticoagulant drug called warfarin which prevents the blood from forming clots so easily. ...
West coast experiencing decreasing trends in salmon spawning
2012-07-04
Ottawa, Ontario (July 3, 2012) – The number of adult sockeye salmon produced per spawner has been decreasing over the last decade or more along the western coast of North America, from Washington state up through British Columbia and southeast Alaska. A new study published in the Canadian Journal of Fisheries and Aquatic Sciences says that this widespread decrease in productivity has important implications for management of salmon stocks and requires research into its potential causes to help determine future management strategies.
"It is possible that the downward trends ...
Discovery explains how cellular pathways converge to regulate food intake and body weight
2012-07-04
BOSTON -- In the complex chain of molecular events that underlie eating behaviors and body weight, the AMP-activated protein kinase (AMPK) enzyme has proven to be a critical link.
Now, researchers at Beth Israel Deaconess Medical Center (BIDMC) have identified the mechanism responsible for inhibition of AMPK activity in the hypothalamus, a discovery that not only provides a deeper understanding of energy balance but also reveals a critical integration point where multiple signaling pathways, including PI3K-AKT and mTOR converge.
Described in the July 3 issue of Cell ...
Pyrotechnically speaking for your 4th of July fun and fascination
2012-07-04
WASHINGTON, July 3, 2012 — From the hiss of the fuse to the boom and burst of colors, an American Chemical Society (ACS) video, available again this year, explains the science behind the exciting sights and sounds of Fourth of July fireworks. The video is available at www.BytesizeScience.com.
The Chemistry of Fireworks describes how these perennial crowd-pleasers represent chemistry-in-action with a demonstration by fireworks expert John A. Conkling, Ph.D. Author of The Chemistry of Pyrotechnics, Basic Principles and Theory, Conkling is an adjunct professor with Washington ...
UAVForge reveals challenge of developing perch-and-stare UAV
2012-07-04
DARPA's UAVForge, a crowdsourcing competition to design, build and manufacture an advanced small unmanned air vehicle (UAV), set out to determine if a loosely-connected community of UAV enthusiasts could develop a militarily relevant back-pack portable UAV with specific capabilities. By using a crowdsourcing design approach, the effort sought to inspire innovation and creative thought by lowering barriers to entry and increasing the number and diversity of contributors.
More than 140 teams and 3,500 individuals from 153 countries and territories participated on UAVForge.net—the ...
Giraffes are living proof that cells' pressure matters
2012-07-04
Physicists from the Curie Institute, France, explored the relative impact of the mechanical pressure induced by dividing cells in biological tissues. This approach complements traditional studies on genetic and biochemical signalling mechanisms to explain experimental observations of how biological tissues evolve. This work, recently published in European Physical Journal E¹, could have significant implications for the understanding of cancer growth.
Jonas Ranft and team created a two-component mathematical model accounting for both the cells and the fluid caught in between. ...
How do you turn 10 minutes of power into 200? Efficiency, efficiency, efficiency
2012-07-04
A robot that drives into an industrial disaster area and shuts off a valve leaking toxic steam might save lives. A robot that applies supervised autonomy to dexterously disarm a roadside bomb would keep humans out of harm's way. A robot that carries hundreds of pounds of equipment over rocky or wooded terrain would increase the range warfighters can travel and the speed at which they move. But a robot that runs out of power after ten to twenty minutes of operation is limited in its utility. In fact, use of robots in defense missions is currently constrained in part by power ...
Motion sensors detect horse lameness earlier than veterinarians, MU study finds
2012-07-04
COLUMBIA, Mo. ¬— The most common ailment to affect a horse is lameness. A University of Missouri equine veterinarian has developed a way to detect this problem using a motion detection system called the "Lameness Locator." Now, Kevin Keegan, a professor of equine surgery in the College of Veterinary Medicine at MU, has found that his Lameness Locator can detect lameness earlier than veterinarians using the traditional method of a subjective eye test.
The Lameness Locator, which is now in commercial use, places small sensors on the horse's head, right front limb and ...
Global warming favors proliferation of toxic cyanobacteria
2012-07-04
Cyanobacteria are among the most primitive living beings, aged over 3,500 million years old. These aquatic microorganisms helped to oxygenate the earth´atmosphere. At present their populations are increasing in size without stopping. It appears that global warming may be behind the rise in their numbers and may also lead toan increase in the amount of toxins produced by some of these populations.
"Cyanobacteria love warm water, therefore an increase in temperature during this century may stimulate their growth, especially that of the cytotoxic varieties, which could ...
Physicists identify new quantum state allowing 3 -- but not 2 -- atoms to stick together
2012-07-04
MANHATTAN, KAN. -- A Kansas State University-led quantum mechanics study has discovered a new bound state in atoms that may help scientists better understand matter and its composition.
The yet-unnamed bound state, which the physicists simply refer to as "our state" in their study, applies to three identical atoms loosely bound together -- a behavior called three-body bound states in quantum mechanics. In this state, three atoms can stick together in a group but two cannot. Additionally, in some cases, the three atoms can stick together even when any two are trying to ...
Bugs inspire better X-rays: Nanostructures modeled like moth eyes may boost medical imaging
2012-07-04
WASHINGTON, July 3—Using the compound eyes of the humble moth as their inspiration, an international team of physicists has developed new nanoscale materials that could someday reduce the radiation dosages received by patients getting X-rayed, while improving the resolution of the resulting images.
The work, led by Yasha Yi—a professor of the City University of New York, who is also affiliated with Massachusetts Institute of Technology and New York University—was published today in the Optical Society's (OSA) journal, Optics Letters.
Like their Lepidopteran cousins ...
The genomics symposium to boost the further development of cancer research
2012-07-04
July 3, 2012, London, United Kingdom, and Shenzhen, China – The symposium themed "The Era of Next Generation Sequencing in Cancer", co-organized by BGI, the world's largest genomics organization, and Imperial College London, was successfully conducted in London, UK. Around 70 experts, scholars, and representatives from the local colleges, institutes and biotechnology industries attended the meeting with the aim to exchange their insights on high-throughput genomics and accelerate the further development of cancer research.
The symposium started with a friendly opening ...
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