Scientists who have been tracking cloud patterns over the past two decades say the shifts they're seeing seem to correlate closely with what's predicted by computer models of Earth's changing climate.
John Quincy Adams Scientist of the Day
John Quincy Adams, the sixth President of the United States, was born July 11, 1767.
Scientists have developed a way to “chemically grow” transistors that are only a few atoms thick in a bid to give poor old battered Moore's Law another reprieve, according to new research published in Nature Nanotechnology.…
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Graduate students supported by the National Science Foundation helped helm two separate exoplanet discoveries that could expand researchers' understanding of how planets form and orbit stars. K2-33b, shown in this illustration, is one of the youngest exoplanets detected to date and makes a complete orbit around its star in about five days. These two characteristics combined provide exciting new directions for planet-formation theories. K2-33b could have formed on a farther out orbit and quickly migrated inward. Alternatively, it could have formed in situ, or in place.
Image credit: NASA/JPL-Caltech/R. Hurt
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When cells die, whether through apoptosis or necrosis, the DNA and other molecules found in those cells don't just disappear. They wind up in the bloodstream, where degraded bits and pieces can be extracted. This cell-free DNA (cfDNA) is degraded due to its exposure to enzymes in the blood but is nonetheless a powerful monitoring tool in cancer, pregnancy and organ transplantation. One fairly recent breakthrough is prenatal testing for conditions such as Down syndrome, as fragments of fetal cfDNA can be detected in a mother's bloodstream. Now, borrowing a genomics technique used in the study of the ancient past, a Cornell graduate student has come up with a diagnostic tool that can open a window into a transplant recipient's immediate future through the analysis of cfDNA.
Image credit: Sarah Nickerson/Biomedical Engineering
SETI (the Search for Extra Terrestrial Intelligence) is both exciting and disappointing: exciting because of peoples' eternal wish for someone else to be out there; and disappointing because life proves so hard to find.…
Watendlath Tarn, Borrowdale At my approach the soot-black, long-necked bird opens its hook-tipped bill, and utters a harsh croak
Watendlath Tarn shines like a burnished mirror. Perfect reflections of the surrounding hills and a Chelsea blue sky are disrupted only by the occasional splash of mallards and greylag geese and jumping trout. Black buzzer flies (chironomids or non-biting midges) on the surface are hatching from the tarn bed.
I think of Judith Paris, the historical novel by Hugh Walpole, which was a bestseller in the 1930s, though little read these days. It is partly set in revolutionary Paris and partly in Watendlath, with tales of passion and murder played out against vivid descriptions of the Cumbrian countryside.
Continue reading...They're one of the Hebrew Bible's greatest villains, but not much is known about the ancient Philistines. An uncovered cemetery, which researchers say is the first of its kind, could change all that.
A few people with high-functioning autism say they've been briefly helped by exposure to transcranial magnetic stimulation. But there's a cost, one mother found, to getting ahead of the science.
From Essex serpents to chimpanzees, political satire to the best new thrillers … leading writers reveal which books they will be taking to the beach
I recently reread Anita Brookner's first novel A Start in Life (Penguin), and it left me thinking that maybe all novelists should be forbidden from publishing until they are 53; that way they would already have a finished style and a mature, cogent, individual view of the world. This nearly faultless novel also reflects on the competing truthfulness of Balzac versus Dickens. (Balzac died at 51, so the Brookner rule can't apply to him.) But for the moment I am engrossed in Svetlana Alexievich's extraordinary Second-Hand Time (Fitzcarraldo), an oral tapestry of post-Soviet Russia.
It looks like a good summer for books about America by women, which I hope will serve as a distraction from reality
I love novels that blend fact with fiction, so Jill Dawson's The Crime Writer sounds right up my street
Proxies is a collection of essays on sex by Brian Blanchfield. I dipped into 'Frottage' and am already hot for more
Han Kang's The Vegetarian was dreamy and nightmarish, and easily one of the best books I've read in years
Daisy Johnson's Fen is a collection of short stories set in an eerie fenland landscape: I've had my eye on it for weeks
The Mandibles is a gleeful nightmare, it made me snort with laughter even as I was shuddering
Related: Read it and keep: is it time to reassess the 'beach read'?
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NASA is firing up the nine scientific instruments on board the Juno probe orbiting Jupiter ahead of its first data collection mission.…
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It's game over for controversial blood-testing company Theranos with the news that its CEO Elizabeth Holmes will be banned from owning or running a medical laboratory for two years.…
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"An average human brain contains around 100 billion neurons and each neuron is capable of making around 1,000 connections (synapses) with the other neurons. These 1,000 potential synapses created by each neuron are responsible for data storage inside the brain. Now if we multiply the count of neurons (100 billion) by the number of connections (1000) that each of them can make, then we get a whopping 100 trillion data points -- which can at the very least account for storing about 1000 terabytes or 1 petabyte of information."
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After the most recent mass shooting in the U.S. at the Pulse nightclub in Orlando, Senate Majority Leader Mitch McConnell said:
Other politicians echoed that sentiment. But prayers are not going to fix the fact that each year 30,000 deaths and many more injuries are caused by firearm violence. Recognizing gun violence for the public health problem it is might.
So what does it mean to view firearm violence as a public health problem? And how does that change the debate Americans are having about gun violence?
First, and most importantly, viewing firearms violence as a public health problem means declaring that the current situation is unacceptable, and preventable.
We did not successfully tackle the AIDS epidemic until we made it a national health priority, an act marked by the passage of the Ryan White Care Act in 1990. Today this position is reflected by the federal government's commitment to ensure that at least 90 percent of HIV-infected individuals in the U.S. are properly treated by 2020. Federal funding has increased over the course of the epidemic, and the government is spending US$28 billion on domestic HIV prevention and treatment programs during the current fiscal year.
Second, treating firearm violence as a public health problem also means conducting research to identify the underlying causes of the problem and to evaluate potential strategies to address it. For instance, research may reveal common sense structural changes - such as firearm safety features - that limit the potential damage that can be done by guns.
The Centers for Disease Control and Prevention has avoided conducting research on firearm violence since 1996, when Congress passed an appropriations bill barring the CDC from using funds to advocate or promote gun control.
In 2012 President Obama ordered the CDC and other federal bodies to resume research on firearms violence in the wake of the Sandy Hook shooting. But Congress has yet to allocate a single dollar for CDC research on firearm violence.
While the the National Institutes of Health is undertaking firearms research, very little funding is allocated for it, on the order of just $2 million over three years. That's not much out of the NIH's nearly $32 billion budget for fiscal year 2016.
Third, a public health perspective on firearm violence means moving beyond blaming individuals and toward societal programs and policies to curb this epidemic. Just as individual smokers are not to blame for the tobacco epidemic, individual gun owners are not to blame for what is a much larger societal problem.
Taking a broad, societal approach is exactly what we have done with other public health problems, such as smoking. Public health research helped identify a proven set of programs and policies that denormalized smoking, such as limitations on smoking in public places and anti-smoking media campaigns. Thanks in large part to these societal-level public health interventions, cigarette smoking prevalence dropped to its lowest level in history last year.
And fourth, a public health approach means the "public" is included in the discussion. This means that we need to listen to concerns across sectors, including gun owners, gun dealers, law enforcement officials and public health advocates. With a public health problem of this magnitude, everyone should be at the table. That might seem impossible now, given the deep polarization on both sides of the gun control debate. However, a lack of willingness to even discuss potential solutions to the problem is simply unacceptable.
A recent collaboration between the public health community and gun dealers to reduce firearms-related suicide in New Hampshire offers an example of what this might look like.
In 2013, Boston University's School of Public Health started to conduct research aimed at understanding social norms about firearms and gun culture. We have also created a dedicated Violence Prevention Research Unit. So what have we found so far?
In a 2013 study, we linked state homicide data from the CDC with data on gun ownership, which revealed a strong relationship between levels of household gun ownership and firearm-related homicide rates at the state level. We found that this relationship is specific to homicides committed by offenders who are known to the victim.
Earlier this year, we published a study that documented a strong link between gun ownership levels and firearm-related suicide rates. These findings suggest that responding to mass shootings by arming teachers and ordinary civilians is not only unlikely to reduce homicide rates, but the resulting increase in the prevalence of firearms might actually increase deaths from both homicide and suicide.
We have also found a strong relationship between the implementation of state laws that require universal background checks for all gun sales and lower rates of firearm-related homicide.
These findings suggest that the loophole in federal law that allows unlicensed dealers to sell guns to any individual without conducting a background check may be contributing toward higher rates of firearm violence. On June 20, the Senate blocked four gun control measures, including a measure to close the loophole for background checks.
Our future work will explore the impact of various state firearm policies and identify policies that are specifically effective in reducing urban violence, which disproportionately impacts the African-American community.
Even though much of this work has been done without external funding, it is essential that Congress allow the CDC to do its job and conduct research on gun violence, and that other federal agencies like the NIH increase allocations for research in this area.
Allocating $0 for research, as CDC currently does on a problem that results in more than 30,000 deaths each year, is not how we handle a public health issue.
Sandro Galea, Dean, School of Public Health, Boston University and Michael Siegel, Professor of Community Health Sciences, Boston University
This article was originally published on The Conversation. Read the original article.
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Comment Rolls-Royce and the Advanced Autonomous Waterborne Applications Initiative (AAWA) believe the future of cargo transportation is autonomous and they have published an 88 page white paper (PDF) to prove it.…
Three new astronauts currently rocketing up to space in the Soyuz spacecraft will be conducting new experiments, including sequencing DNA and blasting computers with radiation.…
Ferdinand von Zeppelin Scientist of the Day
Count Ferdinand von Zeppelin, a German aeronautical inventor, was born July 8, 1838.
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Kim was an accomplished doctor with plenty of friends. But a few pulses from an electromagnet to her brain at age 54 made her reconsider how she sees herself — and the world.
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Is honesty really the best policy? Isn't it more beneficial to cheat, if you can get away with it? A study from the insect world provides a new perspective on honest communication by showing that paper wasps that send dishonest signals are aggressively punished, and the drubbing can have long-term impacts. Pictured here, two female paper wasps are fighting. In laboratory experiments, bouts between rival females were videotaped and aggression was scored based on the number of mounts, bites, grapples and stings observed.
Image credit: Photo courtesy of Elizabeth Tibbetts
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In the past decade, researchers have attempted to miniaturize photonic technologies for dense integration onto tiny semiconductor chips. To that end, they are seeking to develop even smaller nanolasers, of which plasmonic lasers are the tiniest. Researchers have demonstrated that it is possible to induce plasmonic lasers to emit a narrow beam of light by adapting a technique called distributed feedback. This unique ability of plasmonic lasers makes them attractive for potential applications in integrated (on-chip) optics, for transporting large swathes of data on-chip and between neighboring chips, and for ultrafast digital information processing.
Image credit: Sushil Kumar