organization:university of utah

Analyzing Undefined Behavior with John Regehr
▻http://cppcast.libsyn.com/analyzing-undefined-behavior-with-john-regehr

Rob and Jason are joined by John Regehr to talk about his job as a professor at the University of Utah teaching C++ courses and some of his research projects including souper and csmith. John Regehr is a professor at the University of Utah where he’s been on the faculty since 2003. He likes to work on compilers and software correctness, but used to work on real-time and embedded systems. When he has free time he likes to go hiking in the desert with his kids. News Five Awesome C++ Papers for Kona 2019 ISO Meeting The future of Catch2 Some C++ on Sea videos already available Between linear and binary search John Regehr @johnregehr John Regehr’s Personal Page John Regehr’s Blog Links Souper Csmith C-Reduce C++Now 2018: John Regehr "Closing Keynote: Undefined Behavior and (...)

▻http://traffic.libsyn.com/cppcast/cppcast-187.mp3?dest-id=282890

The Most Important Object In Computer Graphics History Is This Teapot - Facts So Romantic
▻http://nautil.us/blog/-the-most-important-object-in-computer-graphics-history-is-this-teapot

http://static.nautil.us/12699_129ccfc1c1a82b0b23d4473a72373a0a.png

Let’s play a game. I’ll show you a picture and a couple videos—just watch the first five seconds or so—and you figure out what they have in common. Ready? Here we go:Microsoft Windows “Pipes” screensaver.Daniel Kufer/Youtube Did you spot it? Each of them depicts the exact same object: a shiny, slightly squashed-looking teapot.You may not have thought much of it if you saw it in that episode of The Simpsons, in Toy Story, in your old PC screensaver, or in any of the other films and games it’s crept into over the years. Yet this unassuming object—the “Utah teapot,” as it’s affectionately known—has had an enormous influence on the history of computing, dating back to 1974, when computer scientist Martin Newell was a Ph.D. student at the University of Utah. The U of U was a powerhouse of computer (...)

The Most Important Object In Computer Graphics History Is This Teapot - Facts So Romantic
▻http://nautil.us/blog/the-most-important-object-in-computer-graphics-history-is-this-teapot

http://static.nautil.us/8510_fcbfab2f4cda26061ed9e3ee96a4fd61_314x177.png

Let’s play a game. I’ll show you a picture and a couple videos—just watch the first five seconds or so—and you figure out what they have in common. Ready? Here we go:Microsoft Windows “Pipes” screensaver.Daniel Kufer/Youtube Did you spot it? Each of them depicts the exact same object: a shiny, slightly squashed-looking teapot.You may not have thought much of it if you saw it in that episode of The Simpsons, in Toy Story, in your old PC screensaver, or in any of the other films and games it’s crept into over the years. Yet this unassuming object—the “Utah teapot,” as it’s affectionately known—has had an enormous influence on the history of computing, dating back to 1974, when computer scientist Martin Newell was a Ph.D. student at the University of Utah. The U of U was a powerhouse of computer (...)

Trop génial ! l’un dans l’autre, la co-évolution du poing et de la gueule explique le dimorphisme sexuel des crânes humains.

Facing a Violent Past | University of Utah News
▻http://unews.utah.edu/news_releases/facing-a-violent-past

“When modern humans fight hand-to-hand the face is usually the primary target. What we found was that the bones that suffer the highest rates of fracture in fights are the same parts of the skull that exhibited the greatest increase in robusticity during the evolution of basal hominins. These bones are also the parts of the skull that show the greatest difference between males and females in both australopiths and humans. In other words, male and female faces are different because the parts of the skull that break in fights are bigger in males,” said Carrier.

“Importantly, these facial features appear in the fossil record at approximately the same time that our ancestors evolved hand proportions that allow the formation of a fist. Together these observations suggest that many of the facial features that characterize early hominins may have evolved to protect the face from injury during fighting with fists,” he said.

Le résumé (article derrière #paywall)
Protective buttressing of the hominin face - David R. Carrier, and Michael H. Morgan - 2014 - Biological Reviews - Wiley Online Library
▻http://onlinelibrary.wiley.com/doi/10.1111/brv.12112/abstract

Les auteurs sont des récidivistes, l’année dernière ils expliquaient l’évolution de la main comme un avantage sélectif pour la bagarre

Protective buttressing of the human fist and the evolution of hominin hands. - ResearchGate
▻http://www.researchgate.net/publication/233958422_Protective_buttressing_of_the_human_fist_and_the_evolution_o

Thus, the proportions of the human hand provide a performance advantage when striking with a fist. We propose that the derived proportions of hominin hands reflect, in part, sexual selection to improve fighting performance.

>>>>>

Et un réjouissant KO debout réalisé par Brian Switek chroniqueur de National Geographic

Our Skulls Didn’t Evolve to be Punched – Phenomena : Laelaps
▻http://phenomena.nationalgeographic.com/2014/06/10/our-skulls-didnt-evolve-to-be-punched

Hands evolved to punch faces. Faces evolved to take punches. That’s the hypothesis being bandied about by University of Utah researchers Michael Morgan and David Carrier, the pair proposing that the apparent “protective buttressing” of our skulls and hands is a sign of violent prehistoric fights where fists of fury dictated who would mate and who would exit the gene pool. It’s a great example of a just-so story.
(…)
This is bro science – dudes pummeling each other driving human evolution.

Ainsi illustré

https://media.giphy.com/media/11QQ1JrKaUllcI/giphy.gif

#gorafi_encore_plagié

Battle for Survival May Yield the Rain Forest’s Diversity
▻http://www.nytimes.com/2014/01/03/science/battle-for-survival-may-yield-the-rain-forests-diversity.html

It’s tempting to look at all those species [of trees] living so close together as a picture of peaceful coexistence. But Phyllis D. Coley and Thomas A. Kursar, a husband-and-wife team of ecologists at the University of Utah, see them as war zones. Hordes of insects threaten the survival of plants, which respond with chemical warfare. The result, they argue, is the remarkable biodiversity we see today.

“It’s not harmonious,” Dr. Coley said. “It’s a constant battle to stay alive, to stay in the game.” Dr. Coley and Dr. Kursar outline their hypothesis in this week’s issue of Science. [...]

The tropics have thus become host to an arms race. Each species of plant is evolving defenses against its enemies, which evolve counterdefenses in turn. This arms race would explain why tropical plants have become so loaded with toxic compounds.

It might also help solve the mystery of tropical biodiversity. “We think this arms race between the herbivores and the plants might be the explanation for what maintains the diversity that we see now, and why so many plants have evolved in the first place,” Dr. Coley said.

#forêts #biodiversité

How America is killing itself with sugar — War in Context
▻http://warincontext.org/2013/08/14/how-america-is-killing-itself-with-sugar

http://warincontext.org/wp-content/uploads/2013/08/unlimited-sugar-america.jpg

A diet in which 25 percent of one’s calories come from added sugar could be just as harmful to a person’s health as being the inbred offspring of first cousins, a new study conducted by University of Utah researchers found.

The scientists chose this threshold due to the National Research Council’s formal recommendation that a person’s calories from added sugar not exceed 25 percent of their total caloric consumption. However, even this may be far too much, according to the study’s results which found female mice died at twice the normal rate and males were a quarter less likely to hold territory and reproduce when fed the diet reflective of many Americans.

“Our results provide evidence that added sugar consumed at concentrations currently considered safe exerts dramatic adverse impacts on mammalian health,” the researchers said regarding their findings published in the journal Nature Communications, adding they were careful to keep the administered levels of sugar proportionate to the amount consumed by humans through candy, beverages and baked goods. For example, the researchers stressed that the mice’s diet directly corresponded with one in which a person drinks three sodas a day “plus a perfectly healthy, no-sugar-added diet.”

Drugs shortages: Can’t wait? Must wait | The Economist
►http://www.economist.com/node/21536593

This year has seen a shortage of 232 medicines, up from 70 in 2006, according to the University of Utah, which keeps the country’s most comprehensive list. These are mostly injected medicines, such as generic chemotherapy drugs. Many patients have had to delay treatment. A grey market has flourished, with middlemen hoarding drugs and selling them at a premium.

#santé #cancer #pharma #économie #etats-unis