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Introduction to the Fourier transform for image processing (2001)
The definitons of the transform (to expansion coefficients) and the inverse transform are given below:
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TACF is no longer supporting development of D58 American chestnut trees
In December 2023, The American Chestnut Foundation (TACF) withdrew its support for SUNY-ESF’s Darling transgenic chestnut project. Since then, we’ve received questions about the decision and what’s next for the Darling line. We appreciate those questions because they indicate a deep interest in our mission and reflect…
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Study Suggests Fructose Could Drive Alzheimer's Disease
An ancient human foraging instinct, fueled by fructose, may hold clues to the development of Alzheimer’s disease, according to researchers.
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Guinea worm disease is close to being eradicated (2022)
In the late 1980s, there were near a million new cases of guinea worm disease recorded worldwide. In 2021, there were only 15. How was this achieved?
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What happens in the brain while daydreaming?
Observations in mice hint at role of daydreams in remodeling the brain
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Fusion Foolery
Great. The fusion hype is bad enough already. Now its resurgence is going to interrupt the series of posts I’m in the middle of publishing in order for this post to be “timely.”
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How large is that number in the Law of Large Numbers?
All large numbers are large, but some are larger than others
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Mach 3.5 Over Libya in an SR-71 Blackbird
In April 1986, following an attack on American soldiers in a Berlin disco, President Reagan ordered the bombing of Muammar Qaddafi's terrorist camps in Libya. My duty was to fly over Libya and take photos recording the damage our F-111's had inflicted. Qaddafi had established a 'line of death,' a territorial marking…
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Ceasing print publication of ACM journals and transactions
Ceasing Print Editions for ACM Journals and Transactions
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UBC device uses wood dust to trap up to 99.9 per cent of microplastics in water
UBC scientists create device that uses wood dust to trap up to 99.9 per cent of microplastics in water.
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SARS-CoV-2 Infection Affects Energy Stores in the Body, Causing Organ Failure
An international research team, including Jonathan C. Schisler, PhD, in the UNC School of Medicine, has found how SARS-CoV-2 causes widespread “energy outages” throughout major organs, and how these effects contribute to debilitating long COVID symptoms.
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Study finds elevated levels of toxic metals in some juices and soft drinks
A new study has found that some commonly consumed beverages contained levels of toxic metals that exceed federal drinking water standards.
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Maxar's Open Satellite Feed
Benchmarks & Tips for Big Data, Hadoop, AWS, Google Cloud, PostgreSQL, Spark, Python & More...
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Study: Inflammation drives social media use
Understanding and identifying when and why people use social media can inform intervention strategies that teach people when to seek connections, social support, or strengthen their offline relationships.
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PFAS can suppress white blood cells’ ability to destroy invaders
GenX can suppress some white blood cells' ability to kill invaders.
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Archaeologists discover oldest wooden structure
Archaeologists discover world’s oldest wooden structure
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Report on an Unidentified Space Station (1982)
By good luck we have been able to make an emergency landing on this uninhabited space station. There have been no casualties. We all count ourselves fortunate to have found safe haven at a moment when the expedition was clearly set on disaster.
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Place mushrooms in sunlight to get your vitamin D (2012)
(Originally published online in Huffington Post's Healthy Living section.) Vitamin D is an essential vitamin that boosts the immune system and plays vital roles in human metabolism. Did you know that tasty mushrooms are one source for vitamin D, and that you can naturally multiply their levels by exposing them to sunli
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Mysterious object is being dragged into the black hole at the Milky Way’s center
Research by UCLA and Keck Observatory scientists concluded that the object, X7, could be a debris cloud from a stellar collision.
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Warm liquid from Oregon seafloor comes from Cascadia fault
UW oceanographers discovered warm, chemically distinct liquid shooting up from the seafloor about 50 miles off Newport. They named the unique underwater spring
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Ice loss from Greenland and Antarctica hits new record
A report, released today, states that ice loss from Greenland and Antarctica has increased fivefold since the 1990s, and now accounts for a quarter of sea-level rise.
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Signal reflections in electronic circuits
What are "signal reflections", really? And do they matter in circuit design?
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New PFAS discovered with novel testing method
The “forever chemicals” found in the Cape Fear River were detected through a non-targeted testing method developed at UNC-Chapel Hill that broadens researchers’ abilities to identify the hazardous compounds.
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Metals Fuse Together in Space
Is it true that two pieces of metal will permanently join together if they touch in a vacuum? In theory, yes.
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Ketamine's effect on depression may hinge on hope
In an unusual trial, Stanford Medicine researchers found that a patient’s belief that they had received ketamine, even if they didn’t, could improve their depression.
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Greenland ice sheet is close to a melting point of no return
Once we emit about 1000 gigatons of carbon, much of the massive ice sheet will melt irreversibly. We’ve emitted 500 gigatons so far.
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Sodium ascorbate treatment for sepsis moves to next phase of human trials
Promising results from an initial clinical trial show that sodium ascorbate – a pH-balanced formulation of vitamin C – is effective in treating sepsis.