Year 2022 face_with_colon_three
The UK government is supporting projects to put solar panels in space and beam energy back to Earth.
The early 20th century saw the advent of quantum mechanics to describe the properties of small particles, such as electrons or atoms. Schrödinger’s equation in quantum mechanics can successfully predict the electronic structure of atoms or molecules. However, the “duality” of matter, referring to the dual “particle” and “wave” nature of electrons, remained a controversial issue. Physicists use a complex wavefunction to represent the wave nature of an electron.
“Complex” numbers are those that have both “real” and “imaginary” parts—the ratio of which is referred to as the “phase.” However, all directly measurable quantities must be “real”. This leads to the following challenge: when the electron hits a detector, the “complex” phase information of the wavefunction disappears, leaving only the square of the amplitude of the wavefunction (a “real” value) to be recorded. This means that electrons are detected only as particles, which makes it difficult to explain their dual properties in atoms.
The ensuing century witnessed a new, evolving era of physics, namely, attosecond physics. The attosecond is a very short time scale, a billionth of a billionth of a second. “Attosecond physics opens a way to measure the phase of electrons. Achieving attosecond time-resolution, electron dynamics can be observed while freezing molecular motion,” explains Professor Hiromichi Niikura from the Department of Applied Physics, Waseda University, Japan, who, along with Professor D. M. Villeneuve—a principal research scientist at the Joint Attosecond Science Laboratory, National Research Council, and adjunct professor at University of Ottawa—pioneered the field of attosecond physics.
Year 2015 😀
The food that will sustain future generations as we colonise our way across space may be none other than our own sh*t, if a new NASA-funded project is successful.
Continue reading “NASA’s Given Researchers $200,000 to Turn Human Poop Into Food” »
Startups implementing generative AI are already attracting big, early-stage rounds at hefty valuations — with little evidence they can become profitable.
Year 2022 face_with_colon_three
Researchers have designed smart, color-controllable white light devices from quantum dots – tiny semiconductors just a few billionths of a meter in size – which are more efficient and have better color saturation than standard LEDs, and can dynamically reproduce daylight conditions in a single light.
The researchers, from the University of Cambridge, designed the next-generation smart lighting system using a combination of nanotechnology, color science, advanced computational methods, electronics, and a unique fabrication process.
Fungi such as Aspergillus are so common in our surroundings that we breathe in hundreds to thousands of spores every day. In healthy people, fungi typically pose no threat, but they can cause deadly infections in those with compromised immune systems. However, it is increasingly recognized that viral infections such as influenza or SARS-CoV-2 can increase the risk of invasive Aspergillus infections even in healthy people.
The World Health Organization (WHO) has stated that invasive fungal infections are an increasing threat to human health and has reiterated that more research is needed. Until now little was known about how the Aspergillus fungus was able to take root, and what could be done to get rid of it. Researchers at the University of Calgary working with researchers at McGill University have provided new insight on why the immune system fails.
“We discovered that influenza and COVID-19 destroy a previously unknown natural immunity that we need to resist invasive fungal infections,” says Nicole Sarden, a Ph.D. candidate at the University of Calgary and first author on the study.
Multiple agencies concurred this week that 2022 was among the hottest years on record—a continuation of a dangerous trend that experts say underscores the need to move rapidly away from fossil fuels, the primary source of planet-heating pollution.
The World Meteorological Organization confirmed Thursday that last year was one of the hottest since record-keeping began. Citing its analysis of six international datasets, the WMO said that the average global temperature in 2022 was roughly 1.15°C above preindustrial (1850−1900) levels.
“The persistence of a cooling La Niña event” prevented 2022 from being even hotter, but “this cooling impact will be short-lived and will not reverse the long-term warming trend caused by record levels of heat-trapping greenhouse gases in our atmosphere,” said the United Nations weather agency.
Green jobs go beyond solar panel installation and wind turbine maintenance. They’re found in fields from design to economics and in many types of management.
This case highlights a rare but important side effect after vaccination that primary physicians and neurologists should be aware of in order to identify and efficiently manage these patients.
Case presentation: A 10 year old girl was evaluated for headache, fever and vomit. CSF analysis revealed pleocytosis and presence of S. pneumoniae antigen, and proper antibiotic therapy for bacterial meningitis was started, with rapid improvement.
https://europepmc.org/article/ppr/ppr181933
Continue reading “Aseptic meningitis after vaccination of the BNT162b2 mRNA COVID-19 vaccine” »
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