Gold nanoparticles brighten the fluorescent dyes researchers use to highlight and study proteins, bacteria and other cells, but the nanoparticles also introduce an artifact that makes the dye appear removed from the target it’s illuminating.
Now, a University of Michigan team has determined how to account for the discrepancy between where the fluorescent dye appears to be and where its actual position is.
When researchers want to understand how proteins interact with each other, how bacteria function or how cells grow and divide, they often use fluorescent dyes. This microscopy approach can be further enhanced with nanoparticles. But an artifact introduced by the nanoparticles makes the dye appear in the microscope as far as 100 nanometers removed from the protein or bacteria to which it is directly bound.
This “scooching effect” presents a problem: 100 nanometers may seem like an infinitesimal measurement, but if a protein is itself only a nanometer in length, a researcher might not be able to tell whether a protein is interacting with another protein or just gazing at it from the equivalent of the opposite end of a football field. Continue reading “Nanoparticles can help scientists brighten their research—but they also can throw off microscopic measurements”
Pete Farley Medical Express UC San Francisco scientists have developed an imaging tool that could soon allow doctors to locate and visualize bacterial infections in the body and to rule out other common causes of inflammation, such as autoimmune reactions. On August 11, 2017 in Scientific Reports, the UCSF research team reported that scans made with the imaging technique known as PET (positron emission tomography) effectively … Continue reading New tool may allow doctors to ‘see’ bacterial infection in the body
The NeutrinoPOS banking trojan, a constantly evolving malware thanks to its source code having been posted online last spring, has a new form, ominously dubbed Jimmy Nukebot.
Interestingly, it’s no longer in the banking business. Rather, it’s designed to help bad actors do so much more.
“The authors seriously rewrote the trojan—the main body was restructured, the functions were moved to the modules,” explained Kaspersky Lab researcher Sergey Yunakovsky, in an analysis. “The trojan has completely lost the functionality for stealing bank-card data from the memory of an infected device; now, its task is limited solely to receiving modules from a remote node and installing them into the system.”
Those modules contain the payloads, which notably include web injects (which can perform functions similar to those in NeutrinoPOS, like taking screenshots, setting up proxy servers and so on); and a large number of updates for the main module in various droppers. Continue reading “Jimmy Nukebot Explodes on the Scene, Transforming NeutrinoPOS”
Tim Johnson McClatchyDC via The Olympian WASHINGTON The Federal Communications Commission on Thursday swam in a sea of nearly 22 million comments after a deadline passed for the public to offer opinions on an issue that could shape the internet for years to come. But the comments may settle little. Millions of them appeared to come from robotic networks, or bots, and were the equivalent … Continue reading Bots flood government agency seeking comment from human beings
Vernon Loeb The Washington Post I’ve covered the news in Houston for 3½ years and have already seen two devastating floods and now what is being described as a one-in-800-years flood brought on by Hurricane Harvey. That suggests to me that something is happening here that’s way bigger than the largely made-up tiff between Texas Gov. Greg Abbott (R) and Houston Mayor Sylvester Turner (D) about whether … Continue reading Harvey should be the turning point in fighting climate change
In an audience with Pope Francis in the Vatican, the World Council of Churches Central Committee moderator, Dr Agnes Abuom, and WCC General Secretary, Revd Dr Olav Fykse Tveit, discussed how Christian unity is vital in bringing a true sense of justice to issues the world is facing today.
In his remarks Revd Olav said, “We are very grateful for the very constructive and fruitful meeting with Pope Francis today. We are living in a time when the purpose and the objectives of the ecumenical movement are highly relevant. Based on these realities, there is a need for a new search for unity, he said. “Through the many dimensions of its work, the WCC contributes to the unity of the church, and the unity that the WCC is able to express, in turn, contributes to the unity of humankind.” Continue reading “WCC leaders meet Pope Francis in Rome”
MassPrivate I The TSA is winning the war on Americans minds as commuters are being tricked into giving away their rights without a fight. The above video warns that facial recognition body scanners are coming to a train station near you… “Soon you might have to pass through one of these to get to your train or subway.” Last week, the TSA Los Angeles Metropolitan Transportation Authority … Continue reading TSA facial biometric body scanners and government watchlists being used in train stations
Jon Rappoport Over the past 35 years, I’ve exposed as least as much fraudulent science as any reporter around. That’s just a fact. I mention it, because one would expect I’ve learned a few lessons in the process. And I have. Government-backed science exists because it is a fine weapon to use, in order to force an agenda of control over the population. We aren’t … Continue reading A totalitarian society has totalitarian science
Chris Clark Los Almos Daily Post U.S. SENATE News: ALBUQUERQUE — Aug. 14, U.S. Sen. Tom Udall met with Gen. Ellen Pawlikowski, commander, Air Force Materiel Command (AFMC) at the Air Force Nuclear Weapons Center to discuss Kirtland Air Force Base’s critical national security mission, cutting-edge technology, and future plans for harnessing the base’s research and development capabilities to maintain the United States’ technological advantage. As a … Continue reading Udall Touts Kirtland’s Critical Mission & Cutting-Edge Technology In Meeting With Gen. Ellen Pawlikowski
AP via ABC News The U.S. Defense Department is making another multimillion-dollar investment in high-energy lasers that have the potential to destroy enemy drones and mortars, disrupt communication systems and provide military forces with other portable, less costly options on the battlefield. U.S. Sen. Martin Heinrich, a member of the Senate Armed Services Committee and longtime supporter of directed energy research, announced the $17 million investment … Continue reading ‘Sci-fi to real life’: US invests $17 million in laser tech