If you happen to have a box of spaghetti in your pantry, try this experiment: Pull out a single spaghetti stick and hold it at both ends. Now bend it until it breaks. How many fragments did you make? If the answer is three or more, pull out another stick and try again. Can you break the noodle in two? If not, you're in very good company.
The spaghetti challenge has flummoxed even the likes of famed physicist Richard Feynman '39, who once spent a good portion of an evening breaking pasta and looking for a theoretical explanation for why the sticks refused to snap in two.
More than 100 years ago, German Nobel laureate Paul Ehrlich popularized the "magic bullet" concept -- a method that clinicians might one day use to target invading microbes without harming other parts of the body. Although chemotherapies have been highly useful as targeted treatments for cancer, unwanted side effects still plague patients. Now, researchers at the University of Missouri have demonstrated that specialized nucleic acid-based nanostructures could be used to target cancer cells while bypassing normal cells.
Women's Preventive Services Initiative says screen all women annually for urinary incontinence
Early childhood seizures result from a rare disease that begin in the first months of life. Researchers at University of Utah Health have developed high-tech tools to uncover the genetic cause of the most difficult to diagnose cases. The results are available online on August 13 in the journal Nature Genomic Medicine.
Yokohama, Japan - Researchers have demonstrated holonomic quantum gates under zero-magnetic field at room temperature, which will enable the realization of fast and fault-tolerant universal quantum computers.
A quantum computer is a powerful machine with the potential to solve complex problems much faster than today's conventional computer can. Researchers are currently working on the next step in quantum computing: building a universal quantum computer.
A major new study has shown that rotavirus vaccination reduced infant diarrhoea deaths by 34% in rural Malawi, a region with high levels of child deaths.
The study led by scientists at the University of Liverpool, UCL, Johns Hopkins Bloomberg School of Public Health and partners in Malawi provides the first population-level evidence from a low-income country that rotavirus vaccination saves lives.
SAN FRANCISCO -- Our digital lives may be making us more distracted, distant and drained, according to research presented at the annual convention of the American Psychological Association.
For instance, even minor phone use during a meal with friends was enough to make the diners feel distracted and reduced their enjoyment of the experience, one study found.
Nature has provided us not only the fantastic materials, but also the inspiration for the design and fabrication of high-performance biomimetic engineering materials. Woods, which have been used for thousands of years, have received considerable attention due to the low density and high strength. The unique anisotropic cellular structure endow the woods with outstanding mechanical performances. In recent decades, various materials have been produced into monolithic materials with anisotropically cellular structures, trying to duplicate the lightweight and high-strength woods.
From everyday experience we know that metals are good conductors for both electricity and heat -- think inductive cooking or electronic devices warming up upon intense use. That intimate link of heat and electrical transport is no coincidence. In typical metals both sorts of conductivity arise from the flow of 'free' electrons, which move like a gas of independent particles through the material.
A quality-improvement project to standardize feeding practices for micro preemies--preterm infants born months before their due date-- helped to boost their weight and nearly quadrupled the frequency of lactation consultations ordered in the neonatal intensive care unit (NICU), a multidisciplinary team from Children's National Health System finds.