feed info
168,132 articles from ScienceDaily
Increasing accessibility of 3-D printing raises concerns about plastic guns
- ScienceDaily
- 13/10/2 18:55
Three-dimensional printers can make artists' and hobbyists' dreams a reality, opening up a new world of inexpensive, on-demand plastic parts manufacturing, but there's also a dark side. As these printers -- now available at major U.S. retail stores -- become more popular, concerns are growing about their use for designing and building custom plastic firearms -- weapons that could conceivably go...
Recruiting E. coli to combat hard-to-treat bacterial infections
- ScienceDaily
- 13/10/2 18:55
The notorious bacteria E. coli is best known for making people sick, but scientists have reprogrammed the microbe -- which also comes in harmless varieties -- to make it seek out and fight other disease-causing pathogens. This new type of E. coli can even kill off slimy groups of bacteria called biofilms that are responsible for many hard-to-treat...
Researchers identify the neural circuits that modulate REM sleep
- ScienceDaily
- 13/10/2 18:55
Researchers have identified, for the first time, a precise causal link between neuronal activity in the lateral hypothalamus and the state of REM sleep. Using optogenetics, they were able to induce REM sleep in mice and modulate the duration of this sleep phase by activating the neuronal network in this area of the...
Seamless photography: Using mathematical models for image stitching
- ScienceDaily
- 13/10/2 18:55
Panoramic photographs were invented to capture large objects or scenes that could not otherwise fit within the constraints of a single photo. Panoramic photography is achieved through image stitching, a process that combines two or more photographs, seamlessly blending input images with overlapping regions into one...
Technology, not uninsured patients, driving hospital costs
- ScienceDaily
- 13/10/2 18:55
Technology, not uninsured patients, likely explains the steep rise in the cost of hospital care in Texas in recent years.
Imaging system can help diagnose disease, monitor hazardous substances
- ScienceDaily
- 13/10/2 17:24
To meet demands for ever smaller imaging systems, researchers are working to create entirely unconventional ways of focusing light. In pursuit of this vision, engineers have built a novel type of imaging system inspired by the elegance and relative mechanical simplicity of the human...
New method allows quantitative nanoscopic imaging through silicon
- ScienceDaily
- 13/10/2 17:24
Scientists have figured out how to quantitatively observe cellular processes taking place on so-called "lab on a chip" devices in a silicon environment. The new technology will be useful in drug development as well as disease diagnosis, researchers say.
Understanding the dangers of the fake marijuana called 'Spice' or 'K2'
- ScienceDaily
- 13/10/2 17:24
The harmful effects of increasingly popular designer cannabis products called "Spice" or "K2" have puzzled scientists for years, but now a group of researchers is reporting progress toward understanding what makes them so toxic. The study describes development of a method that could someday help physicians diagnose and treat the thousands of young adults and teens who end up in emergency rooms...
How one transportation business survived Hurricane Sandy
- ScienceDaily
- 13/10/2 17:23
In a year-long case study of a major American transportation company, researchers have uncovered the strategies that helped the company maintain safety and meet customer demand during 2012’s Hurricane Sandy.
Discovery of charged droplets could lead to more efficient power plants
- ScienceDaily
- 13/10/2 16:33
Condensation on a metal plate leads to formation of droplets that carry electric charge, could improve power-plant efficiency.
Genetic anti-inflammatory defect predisposes children to lymphoma
- ScienceDaily
- 13/10/2 16:33
New research shows that children with an inherited genetic defect in a critical anti-inflammatory pathway have a genetic predisposition to lymphoma.
Peculiar, diverse and dangerous to crops: A checklist of the scale insects of Iran
- ScienceDaily
- 13/10/2 16:33
Largely diverse and economically important group, the scale insects of Iran require further investigation and improvement of knowledge, both from taxonomic and practical point of view. A new detailed checklist of Coccoidea in Iran provides the first steps in the better understanding of the family and a call for future investigations and practical use of knowledge in pest control...
Radiofrequency ablation effectively treats Barrett's esophagus
- ScienceDaily
- 13/10/2 16:33
Radiofrequency ablation leads to remission for 91 percent of patients with dysplastic Barrett's esophagus, according to new figures.
Measuring height by connecting clocks
- ScienceDaily
- 13/10/2 16:30
How far above sea level is a place located? And where exactly is "sea level"? It is one objective of the geodesists to answer these questions with 1 cm accuracy. Conventional measurement procedures or GPS technologies via satellites, however, reach their limits here. Now optical atomic clocks offer a new approach, because the tick rate of a clock is influenced by...
Proper diet, exercise to limit diabetes epidemic
- ScienceDaily
- 13/10/2 16:30
The number of diabetics worldwide is exploding. In response, the largest study of its kind to date is set to investigate type-2 diabetes prevention through diet, exercise and lifestyle. Eight EU nations, along with New Zealand, Australia and Canada, will participate in the...
Early mammal varieties declined as evolution of flowering plants radiated
- ScienceDaily
- 13/10/2 16:29
The dramatic explosion of flowering plant species that occurred about 100 million years ago was thought to have been good news for evolving mammals. But new research suggests that wasn't necessarily the case.
Operating system weakness: Security weaknesses in iOS 7 rectified
- ScienceDaily
- 13/10/2 16:23
Computer scientists have discovered three security weaknesses in iOS 7, which Apple Inc. has now recognized and rectified.
Researchers regenerate a fully functional bioengineered lacrimal gland
- ScienceDaily
- 13/10/2 16:23
Organ replacement regenerative therapy has been proposed as having the potential to enable the replacement of organs that have been damaged by disease, injury or aging. A research group signals a substantial advancement in the development of next-generation organ replacement regenerative therapies for dry eye...
Researchers regenerate a fully functional bioengineered salivary gland
- ScienceDaily
- 13/10/2 16:23
The ultimate goal of regenerative therapy is to develop fully functional bioengineered tissues that can replace lost or damaged organs following disease, injury or aging. A research group has provided a proof-of-concept for bioengineered mature organ replacement as a regenerative...
Eye contact may make people more resistant to persuasion
- ScienceDaily
- 13/10/2 15:26
Making eye contact has long been considered an effective way of drawing a listener in and bringing him or her around to your point of view. But new research shows that eye contact may actually make people more resistant to persuasion, especially when they already disagree.
Streams below fracking wastewater treatment show elevated salts, metals, radioactivity
- ScienceDaily
- 13/10/2 15:26
Elevated levels of radioactivity, salts and metals have been found in river water and sediments at a site where treated water from oil and gas operations is discharged into a western Pennsylvania creek.
Did you have a good time? We know where you'll store the memory of it
- ScienceDaily
- 13/10/2 15:23
Where do you go for a tasty bite and where is the food not so good? Where are you likely to have a great time and where might things not turn out so well? For every person – but also for animals – the information about pleasant and unpleasant experiences is of key importance. Researchers have now discovered how and where pleasant memories are...
Spinach and nanodiamonds? nanodiamond biosensor for detection of iron-level in blood
- ScienceDaily
- 13/10/2 15:22
Popeye, the comic book hero, swears by it as do generations of parents who delight their children with spinach. Of course, today it is known that the vegetable is not quite as rich in iron as originally thought, but that iron is nevertheless essential for our physical well-being is undisputed. Lack of iron -- caused by malnutrition -- can lead to anemia while an increased level of iron may signal...
Like father, not like son: Brain and song structure in zebra finches are strongly influenced by the environment
- ScienceDaily
- 13/10/2 15:21
A central topic in behavioral biology is the question, which aspects of a behavior are learned or expressed due to genetic predisposition. Today it is known that our personality and behavior are far less determined by the genetic background. Especially during development environmental factors can shape brain and behavior via so-called epigenetic effects. Thereby hormones play an important role....
Textured images help tactile recognition for the blind
- ScienceDaily
- 13/10/2 15:21
The use of different materials with varied textures improves the recognition of tactile images by young blind people. This result emphasizes that early, regular use of tactile material by blind children is necessary to improve recognition through touch.