Gleanings of the Week Ending May 31, 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.

10 Ways Vincent Van Gogh Continues to Make News, Even Today – An artist that has been ‘newsworthy’ for a very long time. This post about recent instances of ‘Van Gogh mania.’

Measles vaccines save millions of lives each year – Statistics about measles and the impact of the vaccine…history and how the choices we make will have impacts on the future trajectory of the disease.

New River Gorge National Park and Preserve – It became a national park in 2020. I’ve driven through it…stopped at a visitor center…but haven’t experienced it the way I have other national parks.

Forty Years of Change in Louisiana’s Wetlands – Images from Landsat 9 from 1985 and 2024 show that much of the wetland has transitioned to open water….reshaped by storms and sea level rise.

In healthy aging, carb quality counts - The researchers analyzed data from Nurses' Health Study questionnaires collected every four years between 1984 and 2016 to examine the midlife diets and eventual health outcomes of more than 47,000 women who were between the ages of 70 and 93 in 2016. The analysis showed intakes of total carbohydrates, high-quality carbohydrates from whole grains, fruits, vegetables, and legumes, and total dietary fiber in midlife were linked to 6 to 37% greater likelihood of healthy aging and several areas of positive mental and physical health.

Wildlife Photographer Captures Mid-Air Battle of Two Birds Fighting for Dinner – The battle over a vole between a Northern Harrier and Short-eared Owl in British Columbia, Canada. Dramatic photos. Both birds are over Missouri Prairies in the winter too!

How the humble chestnut traced the rise and fall of the Roman Empire - According to researchers in Switzerland, the Romans had something of a penchant for sweet chestnut trees, spreading them across Europe. But it wasn't so much the delicate, earthy chestnuts they craved – instead, it was the fast-regrowing timber they prized most, as raw material for their empire's expansion. And this led to them exporting tree cultivation techniques such as coppicing too, which have helped the chestnut flourish across the continent.

China’s Mega Dam Project Poses Big Risks for Asia’s Grand Canyon - China’s plans to build a massive hydro project in Tibet have sparked fears about the environmental impacts on the world’s longest and deepest canyon. It has also alarmed neighboring India, which fears that China could hold back or even weaponize river water it depends on.

Step Into a Painstakingly Recreated 3D Model of the Parthenon, Now Restored to Its Ancient Glory - By combining archaeology and technology, a researcher has shed light on a longstanding architectural mystery: how the ancient Greeks experienced the inside of the Parthenon, the Athenian Acropolis’ largest temple, built and dedicated to the goddess Athena in the fifth century B.C.E.

How Tikal Became One of the Greatest Mayan Cities—and Then Vanished - Nowadays, the ruins of Tikal, an ancient Maya city in northern Guatemala, have been largely reclaimed by the jungle. Howler monkeys jump from pyramid to pyramid. Bats hide in the crevices of abandoned homes. Bullet ants and tarantulas crawl along the forest floor while coatis—racoon-like animals with long, upright tails—search for fallen fruit. Many of the city’s structures remain unexcavated to ensure their preservation. Tikal began life as a series of small, unassuming hamlets. Across centuries, it grew into one of the largest and mightiest cities in the loosely affiliated network of municipalities that made up the Maya civilization. At its peak, which approximately lasted from 600 to 900 C.E., Tikal comprised an area of roughly 50 square miles, 3,000 stone structures, and a population that may at one point have exceeded 60,000 people. While other Maya settlements like Chichen Itza remained inhabited well into the 12th century C.E., Tikal is thought to have collapsed around the year 900.

Gleanings of the Week Ending May 6, 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.

Digesta: An overlooked source of Ice Age carbs – Partially digested vegetable matter from large herbivores (such as bison) might have provided carbohydrates and other macro nutrients reducing the burden of ‘gathering’ for a time after an animal was slaughtered. Perhaps during migration, it was the dominant source of carbohydrates in a situation with reduced accessibility of plants. And maybe women participated in hunting to a larger extent than previously thought; ‘grave goods’ in burials found that perhaps 30-50% of all large-game hunters in the Americans during the late glacial era may have been female!

Anemia found to be common in ancient mummified Egyptian children – CT scans were done on 21 child mummies (between ages 1-14 at death) to study the skeleton inside the wrapped remains. 7 of the children had pathological enlargement of the cranial vault, typically associated with anemia. The study also found a child that died less than a year after birth of thalassemia (the body could not produce hemoglobin).

Bathing through the ages: 1300 – 1848 – 14th and 15th century bathhouses provided services beyond bathing (lancing abscesses, pulling teeth, steam rooms, mineral baths, cupping, herbal concoctions); they helped shape the public health services of larger cities as they grew, and health conditions deteriorated. By the 16th century, bathhouses started to disappear as Europe was ravished by plague, smallpox, and syphilis. But – by the 1800s, sanitation reformers were arguing that making bathing facilities available to the poorest classes of society offered an ‘affordable and immediate way’ of improving public cleanliness and health. Bathhouses, along with waterworks and sewage systems, laid the foundation for the UK Health Act of 1848.

Glass or Plastic: which is better for the environment? – There is not a clear-cut answer. I will lean toward glass because of its non-toxicity….but I also realize we need to improve the ways we use it (less single use) and recycle it (better sorting and improved processing that avoids melting it twice),

Greener batteries – Batteries with Organic Electrode Materials (OEMs) are one alternative that is being researched…in this case using azobenzene by a research team at a Chinese University. Hopefully there are researchers around the world also focused on producing greener batteries.

Protein powders: When should you use them? – I think of protein powder as an ultra-processed food….a food I only want to use if I can’t manage to get enough protein from unprocessed or lightly processed foods in my diet. It is not something I want to use every day!

Long Reviled as ‘Ugly,’ Sea Lampreys Finally Get Some Respect – Not so long ago…lampreys were an organism that seemed destined for extinction because we only saw it as a predator that wiped out the Great Lakes lake-trout fishery. Now, the consensus is that, in their natural habitat, marine lampreys are “keystone species” supporting vast aquatic and terrestrial ecosystems. They provide food for insects, crayfish, fish, turtles, minks, otters, vultures, herons, loons, ospreys, eagles, and hundreds of other predators and scavengers. Lamprey larvae, embedded in the stream bed, maintain water quality by filter feeding; and they attract spawning adults from the sea by releasing pheromones. Because adults die after spawning, they infuse sterile headwaters with nutrients from the sea. When marine lampreys build their communal nests, they clear silt from the river bottom, providing spawning habitat for countless native fish, especially trout and salmon. Wow!

The Pacific Garbage Patch Is Home to Coastal Species—in the Middle of the Ocean – A surprise for researchers…they found shrimp-like arthropods, sea anemones and mollusks, Pacific oysters, orange-striped anemones and ragworms. Crustaceans were taking care of eggs and anemones were cloning themselves. This does not make the Garbage Patch acceptable!

Photography In the National Parks: Same Spot, Different Time / Season / Weather – Spots in Yellowstone, Mount Rainier, and Olympic National Parks.

Greater fat stores and cholesterol increase with brain volume, but beyond a certain point they are associated with faster brain aging – People in wealthy countries have largely grown accustomed to eating more and exercising less -- habits that are associated with decreased brain volumes and faster cognitive decline. This study looks at indigenous people (two tribes in Bolivia that live along tributaries of the Amazon). The tribe that was closer to our subsistence ancestors had the lowest rates of hear disease and minimal dementia; in this group - BMI, adiposity and higher levels of "bad" cholesterol were associated with bigger brain volumes in older adults!