• Social networking makes us smarter now, but more stupid in the long run

    Does improved connectivity to other people through social networks makes us smarter or more stupid? Some say that connectivity allows us acquire information from other people as well as by direct experience. Many pundits say that in the Internet era, in which we have access to a diversity of information, humankind will learn to make more informed decisions. Others, however, suggest having so much information at our fingertips will limit our ability for concentration, contemplation, and reflection. Controlled tests show that both arguments are correct – but on different tike scales: Being able to copy from other people in vast networks means analytical responses rapidly spread – but only by making it easy and commonplace for people to reach analytical response without engaging analytical processing. The researchers conclude that this tendency to copy without thinking “can explain why increased connectivity may eventually make us stupid by making us smarter first.”

  • New state-of-the-art cybersecurity resource available to software developers

    Cybercrime is booming; it is an estimated $100 billion industry in the United States and shows no signs of slowing down. Attackers have an arsenal of weapons at their disposal, including social engineering — or phishing — penetrating weak security protocols and exploiting software vulnerabilities that can serve as an “open window” into an organization’s IT environment. Closing those windows requires effective and accessible tools to identify and root out software vulnerabilities. Supported by a $23.4 million grant from DHS’s Science and Technology Directorate (S&T), the Software Assurance Marketplace, or SWAMP, provides a state-of-the-art facility that serves as an open resource for software developers, software assurance tool developers, and software researchers who wish to collaborate and improve software assurance activities in a safe, secure environment.

  • Quake-vulnerable concrete buildings in Los Angeles area identified

    Researchers have identified nonductile concrete buildings constructed before roughly 1980 in the Los Angeles area. This category of buildings is known from experience in previous earthquakes to have the potential for catastrophic collapse during strong earthquakes. Nonductile concrete buildings were a prevalent construction type in seismically active zones of the United States before the enforcement of codes for ductile concrete which were introduced in the mid-1970s. A companion study estimates that approximately 17,000 nonductile reinforced concrete buildings are located in the most highly seismic areas of California. More than seventy-five million Americans in thirty-nine states live in towns and cities at risk for earthquake devastation.

  • Florida mulling banning school collection of students’ biometric information

    Some school districts in Florida, including Polk County and Pinellas County, are using scanners to collect fingerprints and hands, eyes, and voice characteristics from students. Pinellas County school district allows students to use palm scans instead of cash to pay for meals in the cafeteria. The collection of students’ biometric information has alarmed many parents who are concerned that students’ identity or personal records may be stolen or sold to private companies. Florida state legislators are debating a proposal which would stop school districts from collecting biometric information from students.

  • DARPA makes agency-sponsored software, publications available to R&D community

    DARPA has invested in many programs that sponsor fundamental and applied research in areas of computer science, programs which have led to new advances in theory as well as practical software. The R&D community has asked about the availability of results, and now DARPA has responded by creating the DARPA Open Catalog, a place for organizing and sharing those results in the form of software, publications, data, and experimental details. The Web site aims to encourage communities interested in DARPA research to build off the agency’s work, starting with big data.

  • New research on ocean conditions to aid Navy planners

    The Office of Naval Research Global (ONR Global) announced last week a grant to the University of Melbourne which will provide new insights into ocean conditions — crucial information for Navy planners involved in tactical and strategic decision-making. The goal of the effort is to provide the best information possible on the environmental, or battlefield, conditions, so that tactical and strategic decisions can be properly made.

  • Protecting cities from floods cheaper than post-flood damage repairs

    Researchers say that global warming is here to stay, and thus it is time to start making plans for dealing with the inevitable flooding which will occur as ocean levels rise as a result of warmer water and melting snow and ice. Approximately a billion people currently live in areas which are most at risk — low-lying coastal areas. It is not likely that towns and cities will be moved farther inland, so other measures need to be taken. The researchers say that flood prevention strategies are well established, for example, building levees, barrier islands, etc., so it is not difficult to draw up estimates for such schemes for individual areas.

  • Total California water supplies at near-decade low

    Advisory from UC Center for Hydrologic Modeling finds California’s statewide averages of snow, surface water, and soil moisture near 10-year lows. The threat of multi-year period of unsustainable groundwater depletion imminent if drought continues. The data show particularly steep water losses between November 2011 and November 2013, the early phase of the current drought. The researchers estimate that the Sacramento and San Joaquin River basins have already lost ten cubic kilometers of fresh water in each of the last two years — equivalent to virtually all of California’s urban and household water use each year.

  • Making the U.S. grid sturdier, smarter, and more secure to thwart blackouts

    In August 2003, fifty million customers throughout the northeastern United States and southeastern Canada lost power for up to two days. More than ten years later, the U.S. electric power system continues to be challenged. In the United States, 149 power outages affecting at least 50,000 customers occurred between 2000 and 2004, a number which grew to 349 between 2005 and 2009. In 2012, the prolonged power outages in New York and New Jersey caused by Hurricane Sandy once again demonstrated the system’s vulnerability. A broad, multidisciplinary effort by Georgia Tech researchers aims to revolutionize the delivery of electricity, advance the smart grid, thwart blackouts, integrate renewable energy sources, and secure utilities from cyberattacks.

  • Smartphones to help find avalanche victims

    Not a winter goes by without an avalanche incident. In the search for those buried beneath the snow, every second counts. On average, rescuers have fifteen minutes to recover victims alive. This is why an avalanche transceiver is an essential piece of kit for anyone spending significant time off-piste. These transceivers do not come cheap, however, ranging in price from 200 and over 500 euros — perhaps one reason why many walkers and skiers still do not carry one with them. Now smartphones equipped with functions of an avalanche transceiver should help locate the victims quickly.

  • "Envy-free” algorithm may help in settling disputes

    Whether it is season tickets to Green Bay Packers’ games or silver place settings, divorce and inheritance have bred protracted disputes over the assignment of belongings. Now, a trio of researchers has found a method for resolving such conflicts in an envy-free way. The envy-free algorithm may be used by negotiators in intractable political or territorial disputes. “The problem of fairly dividing a divisible good, such as cake or land, between two people probably goes back to the dawn of civilization,” write the authors.

  • Eco-terrorist sentenced to five years and ordered to read Malcolm Gladwell’s book

    Last Monday, Chief U.S. District Judge Ann Aiken imposed a 5-year sentence on radical environmental activist Rebecca Rubin for her involvement in several acts of arson, including the burning of Vail Colorado’s Twin Elks Lodge which caused millions of dollars in damage. Rubin spent almost eight years living underground, giving herself up to the FBI last October. She pleaded guilty to arson, attempted arson, and conspiracy to commit arson in connection with a radical environmental group calling itself The Family. Judge Aiken also ordered Rubin to read Malcolm Gladwell’s 2013 book David and Goliath, explaining that Rubin might learn a thing or two about non-violent environmental advocacy while serving her sentence.

  • Quantum encryption for wiretap-proof communication a step closer

    Polarized light, in which all the light waves oscillate on the same plane, forms the foundation for technology such as LCD displays in computers and TV sets, and advanced quantum encryption. There are two ways to create polarized light, but each has its problems: filtering normal unpolarized to block unwanted light waves (but here, half of the light emitted, and thereby an equal amount of energy, are lost), or using light which is polarized at the source (but here, polarization is either too weak or hard to control). Now there is a better way: By emitting photons from a quantum dot at the top of a micropyramid, researchers are creating a polarized light source with a high degree of linear polarization, on average 84 percent. As the quantum dots can also emit one photon at a time, this is promising technology for quantum encryption, a growing technology for wiretap-proof communication.

  • Senegal climate change-induced flooding reaching crisis proportions: UN

    Margareta Wahlstrom, the head of the UN disaster risk, last week warned that climate change-induced flooding had reached crisis proportions in Senegal, with some towns and villages now finding themselves underwater for large parts of the year. Wahlstrom, who was in Senegal for a 3-day visit as part of the UN preparations for a new global disaster risk-reduction strategy, said that mayors of coastal and riverside towns and villages told her their streets were flooded ten months out of twelve.

  • Clouds influence how greenhouse gases affect climate

    The warming effect of human-induced greenhouse gases is a given, but to what extent can we predict its future influence? That is an issue on which science is making progress, but the answers are still far from exact, say researchers. Indeed, one could say that the picture is a “cloudy” one, since the determination of the greenhouse gas effect involves multifaceted interactions with cloud cover.