The problems of the teacher tenure system, especially in big cities where powerful unions defend members against dismissal, are familiar enough. Less well known is the newer, parallel–and arguably more alarming–rise of police and prison-guard...Show More Summary
You know what? I'm going to throw this into the works and see what happens... -cvj Click to continue reading this post ?
The LightSail team continues to prepare for the spacecraft's May test flight with a series of readiness simulations that mimic on-orbit operations.
The recent Great Recession was accompanied by a significant and sustained increase in major depression in US adults, according to a new study.
Chinese scientists say they've genetically modified human embryos for the very first time. The team attempted to modify the gene responsible for beta-thalassaemia, a potentially fatal blood disorder, using a gene-editing technique known as CRISPR/Cas9. Show More Summary
The last of the woolly mammoths in Siberia died out about 10,000 years ago, but a smaller number living on Wrangel Island, off the coast of what is now Russia, managed to stick around for another 6,000 years. Researchers set out to investigate the two groups and the...
Color me camouflage The decorator crab (Loxorhynchus crispatus) camouflages in style. It selects pieces of seaweed and soft animals like sponges, corals, anemones and bryzoans from around its neighborhood and secures them to hooked setae (Velcro-like bristles) on the back of its shell and legs. Show More Summary
Fragile X syndrome, an inherited cause of autism and intellectual disability, can have consequences even for carriers of the disorder who don't have full-blown symptoms.
A century ago this week, one of the most important battles in the Great War began. Allied forces landed in what is typically called the Gallipoli or Dardanelles Campaign. The campaign went badly almost from the start, with heavy casualties on both sides. Show More Summary
"Creedal discrimination" is now illegitimate at Vanderbilt University. Political correctness uber alles.
The Department of Defense has just issued a new cyber strategy, which perhaps provides the best public presentation of how the United States thinks about cybersecurity. As always with these documents, what is left out is as important as what is put in. So how has U.S. strategic thinking about cybersecurity changed in the post-Snowden […]
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A new study finds students with standing desks are more attentive than their seated counterparts. Preliminary results show 12 percent greater on-task engagement in classrooms with standing desks.
An enzyme secreted by the body's fat tissue controls energy levels in the brain, according to new research. The findings, in mice, underscore a role for the body's fat tissue in controlling the brain's response to food scarcity, and suggest there is an optimal amount of body fat for maximizing health and longevity. Show More Summary
Scientists have used molecular "scissors" to eliminate mitochondrial mutations in eggs and embryos. They are now investigating the possibility of translating this technology to the clinic in human eggs and embryos.
1. Russ Roberts interviews David Skarbek on prison gangs. 2. Who caused the flash crash? 3. More Daniel Davies on Greece. 4. What happens to people when they think they are invisible? 5. AIG in hindsight. 6. “In fact, though the parents may not realise it, many interviewers watch the parents more closely than the […]
Assessing the veracity of Precambrian ‘sponge’ fossils using in situ nanoscale analytical techniquesAuthors:Muscente et alAbstract:Paleontological inferences, molecular clocks, and biomarker fossils indicate sponges evolved in the Cryogenian, but Precambrian sponge fossils are rare, poorly substantiated, and controversial. Show More Summary
CNN reports. … Continue reading ?
HuffPo reports. … Continue reading ?
Pretty amazing to see this piece by Jay Cost in the Weekly Standard. … Continue reading ?