Lifeboat Foundation

During the 1918 flu, San Francisco lifted its lockdown early — and paid a dire price.
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In US news and current events today, the coronavirus pandemic, the COVID-19 outbreak has had people around the world in lockdown. People in the United States and the world at large have had to quarantine and practice social distancing and self-isolation when necessary.

Continue reading “San Francisco Paid the Price for Lifting Spanish Flu Lockdown Early | NowThis” »

By more accurately printing complex geometric patterns, this new 3D printing method makes construction projects more efficient with less waste and faster time to market.

A new 3D printing method could revolutionize the way additive manufacturing is used to print materials on construction sites.

Built in about 24 hours, this robot is undergoing in-hospital testing for coronavirus disinfection.

UV disinfection is one of the few areas where autonomous robots can be immediately and uniquely helpful during the COVID pandemic. Unfortunately, there aren’t enough of these robots to fulfill demand right now, and although companies are working hard to build them, it takes a substantial amount of time to develop the hardware, software, operational knowledge, and integration experience required to make a robotic disinfection system work in a hospital.

Continue reading “Akara Robotics Turns TurtleBot Into Autonomous UV Disinfecting Robot” »

Researchers have demonstrated the world’s first metasurface laser that produces “super-chiral light”: light with ultra-high angular momentum. The light from this laser can be used as a type of “optical spanner” to or for encoding information in optical communications.

“Because light can carry angular momentum, it means that this can be transferred to matter. The more angular momentum light carries, the more it can transfer. So you can think of light as an ‘optical spanner’,” Professor Andrew Forbes from the School of Physics at the University of the Witwatersrand (Wits) in Johannesburg, South Africa, who led the research. “Instead of using a physical spanner to twist things (like screwing nuts), you can now shine light on the nut and it will tighten itself.”

The new laser produces a new high purity “twisted light” not observed from lasers before, including the highest angular momentum reported from a laser. Simultaneously the researchers developed a nano-structured metasurface that has the largest phase gradient ever produced and allows for high power operation in a compact design. The implication is a world-first laser for producing exotic states of twisted structured light, on demand.

Some women with severe anorexia have returned to a healthy weight and feel less anxious and depressed after having electrical devices implanted into their brains, according to a small study. But more research is needed before the treatment can be recommended for wider use.

Software bugs have been a concern for programmers for nearly 75 years since the day programmer Grace Murray Hopper reported the cause of an error in an early Harvard Mark II computer: a moth stuck between relay contacts. Thus the term “bug” was born.

Bugs range from slight computer hiccups to catastrophes. In the Eighties, at least five patients died after a Therac-25 radiation therapy device malfunctioned due to an error by an inexperienced programmer. In 1962, NASA mission control destroyed the Mariner I space probe as it diverted from its intended path over the Atlantic Ocean; incorrectly transcribed handwritten code was blamed. In 1982, a software bug later alleged to have been implanted into the Soviet trans-Siberian gas pipeline by the CIA triggered one of the largest non–nuclear explosions in history.

According to data management firm Coralogix, programmers produce 70 bugs per 1,000 lines of code, with each bug solution demanding 30 times more hours than it took to write the code in the first place. The firm estimates the United States spends $113 billion a year identifying and remediating bugs.

After testing on public roads, Tesla is rolling out a new feature of its partially automated driving system designed to spot stop signs and traffic signals.

The update of the electric car company’s cruise control and auto-steer systems is a step toward CEO Elon Musk’s pledge to convert cars to fully self-driving vehicles later this year.

But it also runs contrary to recommendations from the U.S. National Transportation Safety Board that include limiting where Tesla’s Autopilot driving system can operate because it has failed to spot and react to hazards in at least three fatal crashes.

The recent infective outbreak caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), now officially defined as coronavirus disease 2019 (COVID-19), has already affected over 1million people from nearly all countries worldwide, causing approximately 66,000 deaths. 1 The clinical characteristics of this pandemic disease may be complicated by the onset of a severe form of intestinal pneumonia in 10–15% of infected patients, which may then progress toward acute respiratory distress syndrome (ARDS) and eventually in multi-organ failure (MOF) and death. 2 Since laboratory hematology is a mainstay for screening, diagnosis, but also for prognostication and therapeutic monitoring of a kaleidoscope of human disorders, 3 the aim of this article was to investigate whether or not hemoglobin values may be a predictive factor of worse clinical progression in patients with COVID-19.

We performed an electronic search in Medline, Web of Science and Scopus, using the keywords “laboratory” OR “hemoglobin” AND “coronavirus 2019” OR “2019-nCoV” OR “SARS-CoV-2”, between 2019 and the present time (i.e., March 4, 2020), with no language restriction. The title, abstract and full text of documents identified according to these search criteria were analyzed and those reporting information on the hemoglobin values in COVID-19 patients with or without severe disease (i.e., those needing mechanical ventilation, intensive care unit (ICU) admission or those who died), were meta-analyzed. The reference list of all documents was examined to identify additional eligible studies. The final meta-analysis entailed the estimation of the weighted mean difference (WMD) and 95% confidence interval (95% CI) of hemoglobin values between subjects with or without severe disease. The statistical analysis was performed with the MetaXL software, Version 5.3 (EpiGear International Pty Ltd.