linkstream2 microblog

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The Yamna people or Yamnaya culture (traditionally known as the Pit Grave culture or Ochre Grave culture) was a late Copper Age to early Bronze Age culture of the region between the Southern Bug, Dniester and Ural rivers (the Pontic steppe), dating to 3300–2600 BC.[2] The Yamna culture is identified with the late Proto-Indo-Europeans, and is the strongest candidate for the Urheimat (homeland) of the
Proto-Indo-European language.
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They are also closely connected to later, Final Neolithic cultures which spread throughout Europe and Central Asia, especially the Corded Ware people, but also the Bell Beaker culture as well as the peoples of the Sintashta, Andronovo, and Srubna cultures. In these groups, several aspects of the Yamna culture (e.g., horse-riding, burial styles, and to some extent the pastoralist economy) are present. Genetic studies have also indicated that these populations derived large parts of their ancestry from the steppes.[3][6][7][8]
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https://en.m.wikipedia.org/wiki/Yamna_culture

https://en.wikipedia.org/wiki/Gravettian

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The Gravettians were hunter-gatherers who lived in a bitterly cold period of European prehistory, and Gravettian lifestyle was shaped by the climate.
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Sodium/potassium/calcium exchanger 5 (NCKX5), also known as solute carrier family 24 member 5 (SLC24A5), is a protein that in humans is encoded by the SLC24A5 gene that has a major influence on natural skin colour variation.[5] The NCKX5 protein is a member of the
potassium-dependent sodium/calcium exchanger family. Sequence variation in the SLC24A5 gene, particularly a non-synonymous SNP changing the amino acid at position 111 in NCKX5 from alanine to threonine, has been associated with differences in skin
pigmentation.[6]
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https://en.wikipedia.org/wiki/Sodium/potassium/calcium_exchanger_5

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“Public Lab’s website now hosts discussion boards on topics that range from finding decibel meters for smartphones to detecting metal ions in water, along with a range of impressive tools. In line with its do-it-yourself ethic, the site offers no ready-built equipment; those who build their own devices, Public Lab believes, are more likely to use them. There are instructions for converting a camera to take infrared images that will help determine crop health as well as for spectrometers which can show up the chemical composition of a liquid or gas by analysing light shone through it. Using a design PublicLab has kindly made available at its website to readers of The Economist, you can build one yourself, either just for the fun of it, or to measure the sugar content of your wine, or for some punk’d up purpose of your own.”
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Do-it-yourself science is taking off
https://www.economist.com/christmas-specials/2017/12/19/do-it-yourself-science-is-taking-off

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“Benchmarks are often provided in operations per second, but what exactly is an operation? Within the realm of databases, this could mean any number of things. Is that operation a transaction? Is it an indexing of data? A retrieval from an index”
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Disambiguating Databases
http://cacm.acm.org/magazines/2015/1/181618-disambiguating-databases/abstract

https://grants.nih.gov/grants/how-to-apply-application-guide/due-dates-and-submission-policies/submission-policies.htm#ddohw

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Due Dates on Holidays/Weekends/NIH Office Closures
When a postmark/submission date falls on a weekend, Federal holiday , or Washington, DC area Federal office closure (NOT-OD-17-041), the application deadline is automatically extended to the next business day.
Note: NIH FOAs are posted with a short grace period which allows applications to be submitted even if the submission deadline shifts beyond the expiration date of the FOA. As always, applicants must check the eRA Commons to view their application and ensure it has successfully made it to NIH.
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““The four-year undergraduate experience is often out of reach for large segments of our population,” said Kemi Jona, associate dean for digital innovation and enterprise learning at Northeastern University in Boston. Moreover, he said, “the idea of getting that one degree and you’re set for life doesn’t really hold water anymore. Then the question becomes, ‘how do we make it easier for working adults and people who need to pick up new kinds of tools and technologies?’”

The answer: stackable credits, which Cassandra Horii, director of Caltech’s center for teaching, learning and outreach, defined as “a more bite-sized piece of education that stands on its own and has value in the workplace.” But “if you continue on your educational trajectory, that piece fully counts towards your next educational step.”

The stackable term itself, noted Jimmie Williamson and Matthew Pittinsky in an article in “Inside Higher Education,” is “clever, invoking the image of Lego blocks and the metaphor of assembly.”” “}}

https://www.nytimes.com/2019/02/22/education/learning/stackable-degree-continuing-education.html

http://science.sciencemag.org/content/362/6414/543

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An example is the combination of rigidity and flexibility in protein-based teeth of the squid sucker ring. Other examples are time-delayed actuation in plant seed pods triggered by environmental signals, such as fire and water, and surface nanostructures that combine light manipulation with mechanical protection or water repellency. Bioinspired engineering transfers some of these structural principles into technically more relevant base materials to obtain new, often unexpected combinations of material properties. Less appreciated is the huge potential of using bioinspired structural complexity to avoid unnecessary chemical diversity, enabling easier recycling and, thus, a more sustainable materials economy.
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“In iOS 12 Apple is also introducing anti-fingerprinting technology in Safari. Fingerprinting is a tracking technology advertisers and data firms use to identify your movements online. They do this by recording characteristics about the device you are using–such as hard drive size, screen resolution, fonts, installed, and more–and then recording a log of that device’s movements. Though fingerprinting doesn’t give the firms access to your name, they know what the owner of a specific device does online and can build a profile around those actions. Well, again, until Apple shut that down with iOS 12 by stripping the unique characteristics of your device away from advertisers’ tracking software. These same benefits are also found in Apple’s latest MacOS Mojave, by the way.”
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Forget the new iPhones: Apple’s best product is now privacy
https://www.fastcompany.com/90236195/forget-the-new-iphones-apples-best-product-is-now-privacy

Sent from my iPad

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“The most widely used guidelines for using aspirin to prevent disease came out in 2016 from experts at the United States Preventive Services Task Force. They recommend the drug to prevent cardiovascular disease and colorectal cancer in many people aged 50 to 59 who have more than a 10 percent risk of having a heart attack or stroke during the next 10 years. (That risk, based on age, blood pressure, cholesterol and others factors, can be estimated with an online calculator from the American Heart Association and the American College of Cardiology.)

For people 60 to 69 with the same risk level, the guidelines say it should be an individual decision whether to take aspirin.

But for people 70 and over, the guidelines say there’s not enough evidence to make any recommendation.”
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Low-Dose Aspirin Late in Life? Healthy People May Not Need It
https://www.nytimes.com/2018/09/16/health/aspirin-older-people-heart-attacks.html