Author: Ranveer Kumar
Researchers have found a way to use chaos to help develop digital fingerprints for electronic devices that may be unique enough to foil even the most sophisticated hackers. Just how unique are these fingerprints? The researchers believe it would take longer than the lifetime of the universe to test for every possible combination available. “In our system, chaos is very, very good,” said Daniel Gauthier, senior author of the study and professor of physics at The Ohio State University. The study was recently published online in the journal IEEE Access. The researchers created a new version of an emerging technology called physically unclonable functions,…
New research shows the permanent rise of oxygen in our atmosphere, which set the stage for life as we know it, happened 100 million years later than previously thought. A significant rise in oxygen occurred about 2.43 billion years ago, marking the start of the Great Oxidation Episode — a pivotal moment in Earth’s history. An international research team including a UC Riverside scientist analyzed rocks from South Africa formed during this event. Findings, published this week in the journal Nature, include the discovery that oxygen fluctuated dramatically after its early appearance until it became a permanent constituent of the atmosphere…
This is the third year that Newsweek has partnered with Statista Inc, the respected global data research firm, to reveal the World’s Best Hospitals— and it may be our most important ranking yet. As the events of 2020 made clear, our lives and those of our loved ones may rest on the kind of health care we have access to. The 2,000 hospitals named in this list—which covers 25 countries, including United States, United Kingdom, Germany and Canada —stand out for their consistent excellence, including distinguished physicians, top-notch nursing care and state-of-the-art technology. Of course we hope that we, and you, won’t need to seek care or visit a friend…
A shipment of 700,000 doses was expected to arrive in Israel on Sunday but was halted until further notice. Pfizer has halted shipments of coronavirus vaccines to Israel in outrage over the country failing to approve transfer of payment for the last 2.5 million vaccines it supplied to the country, The Jerusalem Post has learned. Senior officials at Pfizer have said they are concerned that the government-in-transition will not pay up and the company does not want to be taken advantage of. They said that they do not understand how such a situation can occur in an organized country. Army…
A 20-year search of water weeds and cyanobacteria has turned up a bird-killing toxin Mysterious deaths of bald eagles, mallards and other lake life in the southeastern United States have puzzled scientists for more than 20 years. After a long slog exploring the quirks of cyanobacteria gluing themselves to an invasive water weed, a research team has found a toxin that could be the culprit. And it’s an odd one, the team reports March 26 in Science. Nicknamed AETX, the toxin has an unusual chemical structure requiring building blocks rich in the element bromine, says Susan Wilde, an aquatic ecologist at the…
Using deep convolutional neural networks, researchers devise a system that quickly analyzes wide-field images of patients’ skin in order to more efficiently detect cancer. Megan Lewis | Institute for Medical Engineering and Science Melanoma is a type of malignant tumor responsible for more than 70 percent of all skin cancer-related deaths worldwide. For years, physicians have relied on visual inspection to identify suspicious pigmented lesions (SPLs), which can be an indication of skin cancer. Such early-stage identification of SPLs in primary care settings can improve melanoma prognosis and significantly reduce treatment cost. The challenge is that quickly finding and prioritizing…
“It’s time that the U.S. government take the reins back from Wall Street” Just days after he suggested the private sector, not government, will lead the fight against the climate crisis, 145 organizations sent a letter Tuesday urging U.S. Special Presidential Envoy for Climate John Kerry to use his position to help end “the flow of private finance from Wall Street to the industries driving climate change around the world—fossil fuels and forest-risk commodities.” President Joe Biden’s selection of the former secretary of state as the first-ever White House climate envoy was met with mixed reactions from advocates, with critics such as Food &…
The fifth round of negotiations between the EU Council and members of parliament achieved little progress on agreeing a climate law Little progress was made in the fifth round of negotiations on the European Climate Law, despite growing time pressure to have the bill agreed by mid-April, according to people involved in the talks, which are being held behind closed doors. Everything around the climate law was discussed, including the EU’s 2030 and 2050 climate targets, said Harriet Mackhaill-Hill from Climate Action Network Europe. The biggest hurdle standing in the way of a deal is the 2030 target. The European…
Weed production in the United States puffs out heat-trapping emissions. Using weed recreationally might change the climate inside your head. But cannabis production is generating large amounts of gases that heat up Earth’s physical climate. Indoor cannabis farming is booming in the United States thanks to the legalization of the drug in Colorado and elsewhere. Jason Quinn and his colleagues at Colorado State University in Fort Collins looked at how much electricity and natural gas are needed in various states to grow marijuana in an artificial indoor climate, which allows for a consistent product in any weather. The researchers then…
The companies have been slow to make emissions reductions pledges, and have worked to undercut climate and environmental legislation. Top U.S. meat and dairy companies, along with livestock and agricultural lobbying groups, have spent millions campaigning against climate action and sowing doubt about the links between animal agriculture and climate change, according to new research from New York University. The study, published this week in the journal Climatic Change, also said the world’s biggest meat and dairy companies aren’t doing enough to curb their greenhouse gas emissions, with only a handful making pledges to reach net-zero emissions by 2050. “These…