Roberto Abraham Scaruffi

Friday, 24 January 2014

ScienceDaily: Computers & Math News


Posted: 23 Jan 2014 12:48 PM PST
Researchers have produced an advanced web-based tool that lets physically separated participants collaborate on model-based systems engineering projects. The program utilizes open-source software components to allow users to visualize a system's potential expense alongside its performance, reliability and other factors.
Posted: 23 Jan 2014 07:27 AM PST
A new long-range wireless tag detection system, with potential applications in health care, environmental protection and goods tracking, can pinpoint items with near 100 percent accuracy over a much wider range than current systems.
Posted: 23 Jan 2014 04:56 AM PST
Stem cells can turn into heart cells, skin cells can mutate to cancer cells; even cells of the same tissue type exhibit small heterogeneities. Scientists use single-cell analyses to investigate these heterogeneities. But the method is still laborious and considerable inaccuracies conceal smaller effects. Scientists have now found a way to simplify and improve the analysis by mathematical methods.
Posted: 23 Jan 2014 04:55 AM PST
Silicon-based electronics has certain limits, in the physical sense of the word: this type of circuit can never become “nano” because of the physical laws governing the flow of electrons. This imposes a halt to the process of miniaturization of electronic devices. One of the possible solutions is to use molecules as circuits, but their poor conduction capabilities make them unlikely candidates. There is, however, a possible way around this, which was investigated in a recent article.
Posted: 22 Jan 2014 05:22 PM PST
Surveillance minimization -- where surveillance is the exception, not the rule -- could help rebuild public trust following revelations about the collection of personal data, according to a law academic.
Posted: 22 Jan 2014 05:20 PM PST
Bioengineers showed that tiny blood vessels grow better in the laboratory if the tissue surrounding them is less dense. Then the researchers created a computer simulation to predict such growth accurately – an early step toward treatments to provide blood supply to tissues damaged by diabetes and heart attacks and to skin grafts and implanted ligaments and tendons.
Posted: 22 Jan 2014 12:39 PM PST
Every picture tells a story, but the story digital photos tell about how forests respond to climate change could be incomplete, according to new research. A new study shows that the peak in forest greenness as captured by digital pictures does not necessarily correspond to direct measures of peak chlorophyll content in leaves, which is an indicator of photosynthesis. The research has significant implications for how scientists use digital photos to study forest canopies.
Posted: 22 Jan 2014 10:43 AM PST
In a newly published study, a researcher outlines a significant correlation between anonymity and civility.
Posted: 22 Jan 2014 06:24 AM PST
Innovative electrodes allow new computer memory technologies to be compatible with existing circuitry. The computing industry faces constant demands to provide faster access to data and reduce power consumption. As current memory systems cannot meet these demands indefinitely, it is essential to develop entirely new technologies. One strong contender is resistive random access memory (RRAM), which stores binary information by switching a dielectric material between conducting and non-conducting states.
Posted: 22 Jan 2014 06:14 AM PST
The transition from adolescence to adulthood presents individuals with many challenges. Perhaps none are as important as those relating to health and quality of life. Being mildly to moderately overweight during this period substantially increases the likelihood of obesity at age 35 to 37. To prevent weight gain and promote healthy decision making, researchers developed a tailored, theory-based, web-delivered course to prevent excessive weight gain in young adults.
Posted by Roberto Abraham Scaruffi at 14:03