David Shultz
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Articles by David Shultz
Risk prediction model for brain metastasis risk among patients diagnosed with primary gastrointestinal cancers
Abstract The risk of radiotherapy-treated brain metastasis (BrM) in gastrointestinal (GI) cancers is poorly defined. We aimed to determine its incidence and develop a clinically interpretable prediction model. Patients with GI cancers diagnosed between 2005-2020 were identified from our registry. Receipt of brain radiotherapy was used to define radiotherapy-treated BrM.
Why Iowa’s repeal of anti-discrimination laws is unconstitutional
The ‘arc of the moral universe’ is not reversible Civil rights are not reversible. Once the ratchet of rights has been opened, they cannot tighten. This was the argument of Martin Luther King, Jr, who stated numerous times, including after the famous march to Selma, that “The arc of the moral universe is long, but it bends toward justice.” Reversals on the protection of individual rights are not just ethically wrong, but they are also constitutionally impermissible.
Watch the world’s tiniest solar-powered robot take flight
$ Please enter a valid amount Email: Please enter a valid email Country: I also wish to receive emails from AAAS/Science and Science advertisers, including information on products, services and special offers which may include but are not limited to news, careers information & upcoming events. Support nonprofit science journalism Sophisticated, trustworthy reporting about science has never been more important.
Watch viper venom tear this artificial blood vessel apart
$ Please enter a valid amount Email: Please enter a valid email Country: I also wish to receive emails from AAAS/Science and Science advertisers, including information on products, services and special offers which may include but are not limited to news, careers information & upcoming events. Support nonprofit science journalism Sophisticated, trustworthy reporting about science has never been more important.
Ganges River Archives - Eos
Posted inNews Western disturbances are hanging out over India for longer, adversely affecting water security in the country. Posted inNews Most climate models predict that the South Asian monsoon will strengthen with climate change, but new research indicates warmer ocean temperatures may lead to a drier phenomenon. Posted inNews Scientists report a cocktail of antibiotics, anti-inflammatory drugs, and personal care products found near two pilgrimage cities along the river.
Can brewers use AI to make better beer?
$ Please enter a valid amount Email: Please enter a valid email Country: I also wish to receive emails from AAAS/Science and Science advertisers, including information on products, services and special offers which may include but are not limited to news, careers information & upcoming events. Support nonprofit science journalism Sophisticated, trustworthy reporting about science has never been more important.
We ‘baby talk’ our dogs. So why don’t we ‘baby face’ them?
“Who’s so cute? Yes you are. You are so cute!” Baby talk sounds pretty similar, whether we’re cooing to our infants or our dogs. We pitch our voices high and use many of the same phrases. But a new study has spotted a crucial difference: When baby talking our tots, our faces tend to be overly expressive—wide-open eyes, high eyebrows, and exaggerated smiles. With dogs, we’re far more stoic, researchers report in a new study in Applied Animal Behaviour Science.
Powerful new antivenom raises hopes for a universal solution to lethal snakebites
Researchers have discovered a potent antibody that can neutralize a key type of neurotoxin produced by four different deadly snake species from South Asia, Southeast Asia, and Africa—a step toward an antivenom that could be used on any of the 200 or so dangerous venomous snakes throughout the world.
Photoinduced Magnetic Exchange-Jump Promotes Ground State Biradical Electron Spin Polarization
Photoinduced electron spin polarization (ESP) is reported in the electronic ground states of three Pt(II) complexes comprised of two S = 1/2 nitronyl nitroxide (NN) radicals attached through different length para-phenylethynyl bridges to the 3,6 positions of a catecholate (CAT, donor) and 4,4′-di-tert-butyl-2,2′-bipyridine (bpy, acceptor).
Too hot? Too cold? Birds use their legs as a thermostat
The fluffy plumage of birds keeps them warm. Their beaks keep them cool, shedding heat when things get too hot. But when the animals need a more flexible thermostat, they use their legs. It’s an “elegant” study, says Monte Neate-Clegg, an ecologist at the University of California, Los Angeles who was not involved in the work. He hopes further work can help scientists better understand how birds around the globe will cope with climate change.
Winning a Nobel Prize may be bad for your productivity
For many scientists, there’s no greater achievement than winning a Nobel Prize. Since its creation in 1901, the medal has recognized breakthroughs that have broadened our understanding of reality and changed the world. It also might be a productivity killer. According to a working paper recently published by the National Bureau of Economic Research, scientists’ output tends to fall off a cliff after they’ve won the prize.
Worldwide survey kills the myth of ‘Man the Hunter’
For decades anthropologists have witnessed forager women—those who live in societies that both hunt and gather—around the world skillfully slay prey: In the 1980s, Agta women of the Philippines drew bows and arrows as tall as themselves and aimed at wild pigs and deer, and Matses Amazonians struck paca rodents with machetes. Observations from the 1990s described Aka great-grandmothers and girls as young as age 5 trapping duiker and porcupine in central Africa.
42,000-year-old Mongolian pendant may be earliest known phallic art
The human predilection for phallic imagery is well documented—just look at the scrawling in any high school locker room. A pendant recently found in northern Mongolia suggests our species has been artistically recreating the penis for at least 42,000 years.
Faraday Future Completes its First Production Vehicle
Apr 17 2023 Southern California electric vehicle company Faraday Future announced this morning that it had completed its first-ever production-ready vehicle at its plant in Hanford, CA. The FF 91, a luxury sedan has been in development for years, and Faraday has faced a slew of setbacks, reorganizations, and brushes with bankruptcy on its road to production. Against all odds, the car is finally here.
Pyrenees Archives - Eos
Posted inNews Spelunking scientists searched for the original source of the French Pyrenees’ magnificent caves. Posted inNews Every time snow or rain falls, it brings with it microbes from high in the atmosphere. Could those microbes have a seasonal signal, just like the plants on the land below?
Why Is Biden Promoting Massive EVs?
Tesla's Model Y could fall foul of new EV tax credit eligibility rules Certain variants of Tesla's Model Y may not qualify for the $7,500 federal EV tax credit based on the IRS's latest guidelines, a situation that Elon Musk has called "messed up." It looks as though the five-seat Long Range version of the hatchback is too expensive as a car and not considered an SUV, so it falls outside the current guidelines. That could change, though, as the rules won't be finalized until March 2023.
Statevolt Brings the U.S. One Step Closer to Producing Domestically Manufactured Batteries
Jan 25 2023 Statevolt, a battery cell manufacturing company, has secured a site for their gigafactory in the Imperial Valley. As the American sister to their Italian counterpart, Italvolt, the company is seeking to rapidly expand its battery production facilities to the United States by capturing funding created by the Inflation Reduction Act. Statevolt CEO Lars Carlstrom says he’s hopeful that they’ll be able to break ground on the 54 GWh factory as early as August or September 2024.
Why Government Incentives for Used EVs Make No Sense
Jan 09 2023 When the Inflation Reduction Act (IRA) passed last fall, much was made about the revamped electric vehicle tax incentive structure for new car purchases. Specifically that buyers would be eligible for up to a $7,500 rebate. But legislators also added language to the law that would create incentives for used EV sales. Naturally, this facet of the policy was largely ignored.
AI learns the art of Diplomacy
Diplomacy, many a statesperson has argued, is an art: one that requires not just strategy, but also intuition, persuasion, and even subterfuge—human skills that have long been off-limits to even the most powerful artificial intelligence (AI) approaches. Now, an AI algorithm from the company Meta has shown it can beat many humans in the board game Diplomacy, which requires both strategic planning and verbal negotiations with other players.
Cycling In Hot Weather: Tips and Tricks
Illustration by: Robert Beatty It’s going to be hot this summer. Here’s how to enjoy it on your bicycle. Spoiler: You’re going to want to drink water Don’t know if you’ve heard, but the planet is heating up. So, this article should help you plan, not just for this summer, but for centuries to come. Pass it on to your children on vellum so that they might read it from their ever-toastier future and enjoy their bike riding more.
Osmind raises $40 million to expand electronic records for mental health Original
By David Shultz 3 minute Read As the country continues to struggle with a mental health crisis that’s only been exacerbated by the pandemic, electronic health-record startup Osmind has a rare sliver of good news: The San Francisco-based company announced on Tuesday a $40 million Series B round, which it says will allow for more hiring and critical product improvements. Osmind provides software to chart and update patient information and documents, with a focus on mental health.
Can blockchain tech help farmers get climate insurance?
By David Shultz 5 minute Read Climate change is creating a nightmare scenario for subsistence farmers around the world. Subsistence farms are typically small operations, often less than 2 hectares, with outsize importance to the families that operate them, and to the surrounding community that relies on the crops. As of 2013, nearly 2 billion people on the planet relied on small-scale subsistence farms for survival.
Does 3D Printing Matter for the Average Cyclist?
Illustration by: Will Sweeney Hi! It’s me! A very average cyclist. Does 3D printing matter to me? Not really! And yet … I like bikes and cool stuff for my bikes. So it sort of does. I guess it depends on what you mean by “matter.” Is having some new 3D printed tech on my next bike going to make me, an average cyclist, appreciably faster? No. Is a 3D-printed derailleur pulley ever going to be 3x better than a traditionally machined one? I can’t imagine, but that’s the price gap.
High Mountain Rain Has Scientists Rethinking River Basics
A river cuts through mountains in southern Siberia. Credit: Evgenia Beletskaya, Unsplash Source: Journal of Geophysical Research: Earth Surface Mountainous terrains have dynamic climates and can produce startling contrasts in precipitation. Increases in elevation can spell either more or less rainfall depending on atmospheric moisture content, general circulation patterns, and the specifics of the topography in question.
surface waves & tides
Skip to content Posted inNews by Jure Japelj 11 January 202211 January 2022 Tidal heating may have raised the surface temperature of early Earth and triggered global volcanism, a new study says. Posted inNews by Guananí Gómez-Van Cortright 17 December 202117 December 2021 Researchers analyzed 36 years of data to understand how atmospheric rivers and other factors drive chronic coastal flooding. Posted inNews by Kimberly M. S.
沿海岸测量海平面上升 - Eos
作者使用GPS站点数据构建了一幅沿海岸陆地垂直运动的全球地图，上图展示了加利福尼亚海岸。资料来源: William C. Hammond Source: Journal of Geophysical Research: Solid Earth This is an authorized translation of an Eos article.
Speculative North Magazine Issue 6: Science Fiction, Fantasy, and Horror (Speculative North Magazine: Science Fiction, Fantasy, and Horror) eBook : Shultz, David, Kingdon, Amorina, Lee, Quincy , Garber, M. E. , Munteanu, Nina , Kattner, Christopher J. , N
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Running of the bulls could help scientists prepare for catastrophe
The running of the bulls in Pamplona, Spain, provides a unique laboratory experiment. Where else can scientists know exactly when and where people will be fleeing for their lives? Now, a study of the event reveals exactly how crowded a street can get before people start to trip while running at top speed.
How the jerboa got its enormous feet
With its large ears and whiskered nose, you’d be forgiven for mistaking the jerboa for a mouse … at least from the stomach up. The animal’s legs are another story, with gigantic feet that enable it to hop like a kangaroo through hot desert environments in Africa and Asia. Now, researchers say they may have figured out how these stunning appendages evolved.
How to hug, according to science
Love them or hate them, hugs are part of Western culture. They don’t just confer emotional closeness, they’ve been shown to improve our mental and physical health. But hugging is not as straightforward as it may seem. Where do your arms go? How long is too long? Never fear, science has your … back. In a two-part study, researchers set out to discover what makes one hug better than another.
Does kit color actually keep you cool?
In my home of Santa Barbara, California, there is a summer group ride on Tuesday nights called “Views and Brews.” As the name suggests, the ride climbs 9.5 miles and 3,400 feet up into Los Padres National Forest, whereupon riders usually crack a beer, soak in coastal scenery, and then descend back into town. The climb is fairly hard, but the pacing is easy. The only thing that ever makes the effort challenging is the heat.
This video shows why sharks often mistake humans for prey
Among surfers, there’s a commonly held belief that shark attacks are mostly a case of mistaken identity. The apex predators take a bite out of swimmers because they resemble seals and sea lions—especially when they’re on a surfboard. New video footage suggests this may indeed be the case. Great whites and other sharks hunt from below, relying on the contrast of their prey backlit by the light above.
Measuring Sea Level Rise Along the Coast
Authors used GPS station data to create a global map of vertical land motion along the coasts, including along the coast of California, pictured here. Credit: William C. Hammond Source: Journal of Geophysical Research: Solid Earth A translation of this article was made by Wiley. 本文由Wiley提供翻译稿。 Earth’s ocean is clearly rising. Between the loss of land and sea ice and warmer waters expanding, rising sea level is a global issue.
New species has longest tongue of any insect
$25 $50 $100 Other $ Please enter a valid email Single Monthly Email: Please enter a valid email Country: I also wish to receive emails from AAAS/Science and Science advertisers, including information on products, services and special offers which may include but are not limited to news, careers information & upcoming events. Support nonprofit science journalism If we've learned anything from the COVID-19 pandemic, it's that we cannot wait for a crisis to respond.
Explaining Thermal Tides in the Upper Atmosphere During the 2015 El Niño
Much like the oceans, the atmosphere on Earth oscillates on a global scale. The so-called atmosphere tides depend on the Sun’s heat and gravity, as well as the pull of the Moon and Earth’s own rotation. In the troposphere, scientists have identified a regular tide, which they call DW1, that has a 24-hour period and a zonal wave number of 1.
300万年前，额尔齐斯河推动了北极海冰的扩张
This is an authorized translation of an Eos article.
These wasp nests give off one of the most powerful green glows in the animal kingdom
© Bernd Schöllhorn and Serge Berthier By David ShultzAug. 24, 2021 , 7:01 PM One of the brightest green glows in the animal kingdom doesn’t come from a firefly or a deep-sea fish—it radiates from the nests of the Asian paper wasp, according to a new study. The light (pictured) appears to derive from silk proteins woven into cocoons by the wasp larvae (genus Polistes).
These wasp nests give off one of the most powerful green glows in the animal kingdom
$25 $50 $100 Other $ Please enter a valid email Single Monthly Email: Please enter a valid email Country: I also wish to receive emails from AAAS/Science and Science advertisers, including information on products, services and special offers which may include but are not limited to news, careers information & upcoming events. Support nonprofit science journalism If we've learned anything from the COVID-19 pandemic, it's that we cannot wait for a crisis to respond.
Riding loam vs. clay: the best dirt for MTB
Sweet, sweet loam. It is "loam," right? Photo: Tom Caldwell Mountain bikers are obsessed with loam. It seems like every other Youtube video features some absolutely stoked rider on screen yelling at you about how “insanely rippable” this “100% certified organic, dank loam” is. Global Mountain Bike Network has a video on how to ride loam. Mountain Bike Rider has it in their . Pacific Northwest Components is using it as a marketing buzzword to sell everything from grips to dropper posts. Loam is love.
Multicellular Algae Discovered in an Early Cambrian Formation
The Cambrian period, which occurred around 541–485 million years ago, is known for its explosive biological diversification. In warm oceans, the planet’s earliest eukaryotes began to thrive and diversify. A major contributing factor to the acceleration of life and the development of early metazoans is thought to be an increasingly efficient food web, created largely by algae.
俯冲起始可能取决于构造板块的历史
This is an authorized translation of an Eos article.
Irtysh River Drove Arctic Sea Ice Expansion 3 Million Years Ago
The Irtysh River flows through Omsk, Siberia, Russia. Credit: , CC BY-SA 3.0 Source: Geophysical Research Letters A translation of this article was made by Wiley. 本文由Wiley提供翻译稿。 During the late Pliocene, Arctic sea ice began to expand rapidly. The new ice created changes to sea level, albedo, the thermohaline circulation, and a host of other factors that still drive the planet’s climate today. But piecing together what caused the ice to expand rapidly has remained an elusive goal for scientists.
Una mirada global al carbono orgánico superficial del suelo
This is an authorized translation of an Eos article. Esta es una traducción al español autorizada de un artículo de Eos. Un suelo sano es fundamental para la vida en la Tierra. Además de su importancia en la agricultura, el suelo es la base de casi todos los ecosistemas terrestres de la Tierra.
Subduction Initiation May Depend on a Tectonic Plate’s History
The Puysegur Trench follows the natural curvature of New Zealand’s South Island, extending southwest from the island’s southern tip. Credit: NASA Source: Tectonics A translation of this article was made by Wiley. 本文由Wiley提供翻译稿。 Subduction zones are cornerstone components of plate tectonics, with one plate sliding beneath another back into Earth’s mantle.
Mejorando el presupuesto mundial para el metanol atmosférico
This is an authorized translation of an Eos article. Esta es una traducción al español autorizada de un artículo de Eos. A pesar de ser el segundo gas orgánico más común detrás del metano, los científicos todavía están trabajando en comprender el papel y el movimiento del metanol en las regiones de la atmósfera sobre el océano remoto.
A Dilemma For California Legislators: Preserve Public Beaches Or Protect Coastal Homes
Low tide in Solana Beach, CA on May 8, 2013. A reinforced 40-ft-high concrete seawall is protecting ... [+] the homes on the left side of this photo. The bluff on the right side is marked with signs warning: "Unstable Conditions. Stay clear of all bluffs, overhangs and caves." Los Angeles Times via Getty Images By David Shultz Up and down California, rising seas are threatening seaside property.
追踪马尾藻海18度海水中的氧气 - Eos
This is an authorized translation of an Eos article.
Convective Transport Explains “Missing” Ice near the Tropical Tropopause
The lowest level of the atmosphere, the troposphere, contains almost all of Earth’s weather. In the stratosphere above, moisture drops to almost zero. The boundary that separates these two layers—the tropopause—is defined as the point at which water ceases to cool as altitude increases. In the tropics, the tropopause is exceptionally cold and usually occurs at a higher altitude (around 17 kilometers, or about 10 miles) than in polar regions.
astronauts Archives - Eos
Posted inNews by We spoke with science writer Kate Greene about her experiences on a 4-month-long Mars analog mission. Posted inNews by Leland Melvin proves that dedication and hard work can help anyone overcome the odds. Posted inNews by Scientists focus on how the Apollo 11 mission has shaped our understanding of the Moon, Earth, and planetary neighborhood. Posted inNews by Apollo 11’s golden anniversary is this weekend, but the celebration lasts all year long.
Tracking Oxygen in the Sargasso Sea’s 18 Degree Water
A translation of this article was made by Wiley. 本文由Wiley提供翻译稿。 Off the eastern coast of the United States in the Sargasso Sea, the Gulf Stream and its associated ocean currents create a thick, homogeneous layer of water that stays around 18°C year-round. Since its discovery in the late 1950s, this so-called 18 Degree Water has served as a testing ground for numerous studies of nutrient, carbon, and oxygen concentrations; biology; ocean mixing; and physics.
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