Gleanings of the Week Ending March 22, 2025

The items below were ‘the cream’ of the articles and websites I found this past week. Click on the light green text to look at the article.

In This Storied Egyptian City, Rising Seas are Causing Buildings to Crumble – Alexandria, Egypt. Since 2001, 290 building have collapsed as the rising water table weakens soil and erodes foundations. There are other historic coastal cities with the same problem.

Astronomers Discover 128 New Moons Orbiting Saturn, Cementing the Planet’s Title of ‘Moon King’ – The total number of moons of Saturn is now 274….almost twice as many as all the rest of the moons in our solar system combined.

Microplastics could be fueling antibiotic resistance - Microplastics -- tiny shards of plastic debris -- are all over the planet. They have made their way up food chains, accumulated in oceans, clustered in clouds and on mountains, and been found inside our bodies at alarming rates. Scientists have been racing to uncover the unforeseen impacts of so much plastic in and around us. One recent discovery: bacteria exposed to microplastics became resistant to multiple types of antibiotics commonly used to treat infections. They say this is especially concerning for people in high-density, impoverished areas like refugee settlements, where discarded plastic piles up and bacterial infections spread easily.

How the Development of the Camera Changed Our World - From glass plates to paper prints to digital photograph imaging, the photo revolution's intention remains the same—to immortalize our world.

Alphonse Mucha Helped Define Art Nouveau. A New Show Explores His Lasting Influence – Mucha was undeniably revered in his day, when his posters and advertisements were widely disseminated. His posters lined the streets, and his illustrations graced the covers of major magazines. And to feed the public demand for his work, Mucha even produced smaller posters printed in publications, allowing people to bring his ornately detailed lithographs home without having to rely on the luck of finding one in the wild. The special exhibit will be at the Nelson-Atkins Museum of Art, 4525 Oak Street, Kansas City, Missouri, April 11–August 30, 2026….maybe I will plan a road trip for next spring!

'You look up and see light coming through': The divers venturing under the ice in the name of science - In a remote corner of Lapland, northern Finland…a lake with 28 in. layer of ice with a hole cut in it. Divers are tethered to the surface using a safety rope, with a handler on the surface communicating with the diver via rope signals. The training here on the frozen lake is practice for work that will be done out on the sea ice of the Arctic and Antarctic, where there are added dangers – large seals sometimes gather at the dive holes, preventing divers from leaving the water. In 2017, Alf Norkko, a professor of marine research at the University of Helsinki, and his team discovered big changes on the seafloor under Antarctic sea ice since their previous diving expedition in the same area in 2009.  "There was a remarkable increase in the abundance of life," he says. Norkko says that he and his fellow scientists are so dedicated to this work because they are aware of the urgency of climate change. At present, there is a race afoot to understand it, and to respond to it.

Grave of Roman Twins Excavated in Croatia – Twins that died between birth and 2 months…placed face to face. Suffered malnutrition before birth. Infant mortality was as high as 30% in Roman societies.

Particulate matter levels in air exceed WHO limits in majority of world's big cities - Fewer than one in five global cities met World Health Organization air pollution standards (for PM2.5) in 2024 with Central and South Asia accounting for the nine most polluted metropolitan areas on Earth. Los Angeles and Ontario, California are the most polluted in the US.  Mayaguez, Puerto Rico had the cleanest air of any metro area around the world. Man-made activities such as fossil fuel burning for transportation, generating electricity and domestic heating, industrial processes, fireworks and smoking were the largest sources of pollutant PM2.5, but that natural sources including wildfires, dust, pollen and dirt also contributed to particulate loads in the air.

China’s First Domestic Cats Took the Silk Road 1,400 Years Ago, New Study Finds - The Tang Dynasty (618–907 C.E.), from which the oldest cat in the study hails, saw peak activity along the legendary trade network, which boosted the exchange of goods and ideas between China, India, and Persia. It’s not improbable that merchants from the West could have carried cats on their journey to East Asia.

Can Toxic Mining Waste Help Remove CO2 from the Atmosphere? - On the coast of Newfoundland, waste from a shuttered asbestos mine has been a troubling source of contamination for decades. Now, a company plans to process the waste to draw CO2 from the air — one of several projects worldwide that aim to turn this liability into an asset. A 2022 report by the Lawrence Livermore National Laboratory estimated that existing asbestos tailings in Canada and the United States could remove up to 750 million tons of CO2 in total — while also removing an environmental health hazard.

Gleanings of the Week Ending August 24, 2024

The items below were ‘the cream’ of the articles and websites I found this past week. Click on the light green text to look at the article.

Warming waters and nutrient overload: A dangerous combination threatening our rivers and lakes - Food webs are becoming less complex in warmer, nutrient-rich waters. This simplification means shorter food chains and a degraded functioning ecosystem.

Stonehenge’s giant Altar Stone came all the way from north-east Scotland – here’s how we worked out this astonishing new finding – It evidently came from north-east Scotland at least 430 miles from where it is today!

Over half of iron deficiency cases in large health system still unresolved at three years - Factors associated with a higher likelihood of getting iron levels back to normal included older age (age 60 and up), male sex, Medicare insurance, and treatment with IV iron alone. Younger patients, females, and Black individuals were most likely to remain iron deficient or experience longer lags in getting their iron stores back to a healthy level.

What the Mesopotamians had for dinner – Small clay tables date to 1730 BC or earlier…are about preparing food! The instructions are terse, clipped. And as is the case for many old recipes, from all vintages of the human relationship with cuisine, amounts are not specified. Here is how one of the stews is made: for the lamb stew known as tu'hu, first you get water. Then you sear leg meat in fat. In go salt, beer, onion, rocket, coriander, Persian shallot, cumin, beets, water. Crushed leek and garlic and more coriander, for a fiery taste. Then add kurrat, an Egyptian leek. The beets turn it an electric red.

Cleaning up the aging brain: Scientists restore brain's trash disposal system – Using a hormonal like drug to help the glymphatic system of the aging brain to remove toxic buildup more effectively (as younger brains do).

Plant disease could spell apocalypse for citrus fruits - Huanglongbing (HLB), also known as “citrus greening” disease. The economic impacts are dramatic in some countries. In Brazil, production has fallen by more than 20%, 60% in Guadeloupe and plummeted by more than 90% in Florida.

U.S. Wind Generation Hit Record in April, Beat Coal! – Hope this begins happening more often. It should as more wind energy comes online and coal plants are shut down.

Our skin is teeming with microbes. We should learn to love them - Zoom in on any square centimeter of the skin on your body and you'll find between 10,000 to one million bacteria living there. The skin microbiome is second only to our guts when it comes bacterial diversity. This is quite surprising if you think about it. Compared to the safe, warm and moist habitats of our mouths or guts, the skin is an inhospitable place.

Maine! Ghost Plant – A parasitic plant I learned about in my general biology course….and was thrilled the first time I saw it in the wild years ago. I haven’t seen it since.

Five ways science is tackling the antibiotic resistance crisis – Natural products, the promise of AI, combination therapies, immune assistance, efficient diagnostics….and we need more.

Gleanings of the Week Ending January 20, 2024

The items below were ‘the cream’ of the articles and websites I found this past week. Click on the light green text to look at the article.

Just how big can a snowflake get? It depends on what you mean by 'snowflake' - A snow crystal with six-fold symmetry is the kind of snowflake you might cut out of folded paper with scissors. But the word "snowflake" also can refer to white puffballs that drift down from the sky, which are made of many individual snow crystals that have collided and gotten entangled.

Treating tuberculosis when antibiotics no longer work - Substances that have a dual effect against tuberculosis: They make the bacteria causing the disease less pathogenic for human immune cells and boost the activity of conventional antibiotics.

Planning a city that gets people moving – Lake Wales, Florida has a plan to create a built environment that promotes mobility through walking, cycling, e-biking, or other means of transportation beside automobiles. One way to do that is through proximity—to a park, multiuse pathway, protective bike lane, or walkable destination. Another is to ensure that the environment is pleasant for walking or using a bicycle.

The qualities that are more attractive than our looks - When it comes to finding the right match agreeableness accentuates the benefits of other parts of our personalities. It really could pay to be kind after all.

Archaeologists Uncover ‘Exceptional’ Ancient Mural Near Colosseum - Crafted of shells, a special volcanic stone called pozzolana, marble, colored glass, and Egyptian tiles found in the remains of a house from more than 2,000 years ago. Its intricate designs show weapons and instruments hanging alongside ships and tridents. Archaeologists think a wealthy Roman officer commissioned it after a military success. Whoever the owner was, he may not have stayed wealthy for long. Evidence suggests that his family fell out of favor when the Roman emperor Augustus came to power. The building and its contents were later buried and replaced with a grain store built directly on top of it.

A Lake Born out of an Earthquake – Earthquakes can fundamentally reshape the landscape, reroute rivers, and even form new lakes. Consider the northwest corner of Tennessee in the early 19th century. Between December 1811 and February 1812, three earthquakes with magnitudes greater than 7 occurred in the New Madrid seismic zone, which encompasses southeastern Missouri, northeastern Arkansas, and neighboring parts of Tennessee and Kentucky. The last of these quakes, on February 7, 1812, centered near New Madrid, Missouri, was especially notable: It temporarily rerouted the Mississippi River, permanently dammed the Reelfoot River, and directed water to fill in a low-lying area to form Reelfoot Lake. More than two centuries later, Reelfoot Lake remains a persistent feature on the Tennessee landscape. An image from Landsat 9 shows the area in late 2023. The area of lake and surrounding wetlands is a state park and national wildlife refuge.

Cats Prey on More Than 2,000 Different Species - Scientists have long known that free-ranging cats—those that spend unsupervised time outdoors—can affect biodiversity by hunting and eating insects, birds, reptiles and mammals. Researchers sifted through hundreds of previous studies, books and reports to put together a database of every animal cats have been recorded eating, as well as the location. In the end, their list featured 2,084 species, which includes 981 birds, 463 reptiles, 431 mammals, 119 insects and 57 amphibians, plus 33 additional species from other groups. Some of the creatures that made the list—including humans—are too large for cats to hunt but reflect their scavenging tendencies. Though the findings are useful, some scientists say they distract from a much larger threat to biodiversity: humans.

Autistic people experience loneliness far more acutely than neurotypical people -Small adjustments to lighting, acoustics, decor and wayfinding, among other sensory factors, can significantly reduce the burden on people with sensory processing differences and open up more social spaces to them.

Inhalable sensors could enable early lung cancer detection - The new diagnostic is based on nanosensors that can be delivered by an inhaler or a nebulizer. If the sensors encounter cancer-linked proteins in the lungs, they produce a signal that accumulates in the urine, where it can be detected with a simple paper test strip. It could replace expensive CT scans for lung cancer (and be more accurate…not as many false-positives).

This Photographer Captured One Image of Cambridge (England) Every Day for 13 Years - After 5,000 photos, Martin Bond has decided to conclude his project, which showcased the city’s mundane and extraordinary moments. “The best thing about street photography ... is that it is possible for the final viewer of a picture to see more than the original photographer—proof, if any were needed, that there is more going on in any moment than a single person can understand.”

Gleanings of the Week Ending July 8, 2023

The items below were ‘the cream’ of the articles and websites I found this past week. Click on the light green text to look at the article.

Air Pollution Causes 1 In 6 Human Deaths – Deaths from modern pollution risk factors, which are the unintended consequence of industrialization and urbanization, have risen by 7% since 2015 and by over 66% since 2000. Unfortunately, little real progress against pollution can be identified overall, particularly in the low-income and middle-income countries, where pollution is most severe. It is increasingly clear that pollution is a planetary threat, and that its drivers, its dispersion, and its effects on health transcend local boundaries and demand a global response.

Opioids no more effective than placebo for acute back and neck pain – The study was done in Australia but, hopefully, will lead to stepping away from opioids for back/neck pain. How many became addicted to opioids via doctors writing prescriptions trying to relieve their patient’s back pain?

Antimicrobial Resistance: The Silent Pandemic – The first accounts of antimicrobial resistance (AMR) occurred 2 years after Alexander Fleming warned about it in his 1945 Nobel speech. AMR is now responsible for nearly 700,000 deaths worldwide each year, and it is projected to kill 10 million per year by 2050.

Early Women Were Hunters, Not Just Gatherers – My favorite statement from the article: “Grandmas were the best hunters in the village.”

Overdose deaths involving street xylazine surged years earlier than reported – Drug death data is gathered and analyzed slowly…not so long ago, it appeared that illicit xylazine use was still largely concentrated in the mid-Atlantic states and the Northeast….but it is not showing up in street samples all across the US and surging in the South and West. US drug deaths hit a new record last year with roughly 110,000 fatal overdoses nationwide from fentanyl and increasingly complex street drug cocktails.

U.S. Wind and Solar Overtake Coal for the First Time - In the first five months of 2023, wind and solar produced 252 terawatt-hours, while coal produced 249 terawatt-hours, according to preliminary government figures. The decline in coal is happening faster than anyone anticipated.

Largest-ever atlas of normal breast cells brings unprecedented insights into mammary biology – 12 major cell types, 58 biological states…differences based on ethnicity, age, and the menopause status of healthy women.

Why our voices change with age – Lots of reasons the sounds we make can change. One habit suggested from the article that I am considering: “Singing or reading out loud daily can give the vocal cords sufficient exercise to slow their decline.”

Cedar Breaks Wildflower Festival Starts Friday – Hmmm…maybe I should look for wildflower festivals (along with birding) when I plan our vacations.

Meltwater is hydro-fracking Greenland’s ice sheet through millions of hairline cracks – destabilizing its internal structure - Earth’s remaining ice sheets in Greenland and Antarctica are far more vulnerable to climate warming than models predict, and that the ice sheets may be destabilizing from inside. Recent studies have shown that:

• Warming ocean currents are intruding into the Antarctic and Greenland coastlines, flowing under the ice shelves to undercut outlet glaciers and destabilize their calving fronts.

• Increasing rainfall across the Greenland ice sheet not only depletes snow accumulation, it also accelerates surface melting and ice flow.

• Algae and microbes, along with surface snowpack melt, darken the ice sheet surface, absorbing more solar radiation, which also accelerates ice melt.

• Superimposed ice slabs within the snowpack are forming across the accumulation zone, forming an impermeable barrier that depletes meltwater retention and drives extraordinary runoff.

• Water at the base of the ice sheet thaws and softens the frozen bed, thereby triggering basal sliding and accelerating interior ice sheet flow to the margins.