While workers in the engineering technology (ET) field play an important role in supporting U.S. technical infrastructure and the country’s capacity for innovation, there is little awareness of ET as a field of study or category of employment in the U.S., says a new report from the National Academy of Engineering.

The call for expanding undergraduates’ access to research experiences in science, technology, engineering, and mathematics (STEM) raises questions about their use and potential to increase students’ interest and persistence in these disciplines.

Federal agencies or other organizations responsible for sponsoring research or collecting data on technology and the workforce should establish a multidisciplinary research program that addresses unanswered questions related to the impact of changing technology on the nature of work and U.S. national economy, says a new report by the National Academies of Sciences, Engineering, and Medicine.

A new book from the National Academies of Sciences, Engineering, and Medicine outlines how educators can develop and adapt student assessments for the classroom that reflect the approach to learning and teaching science described in the Next Generation Science Standards (NGSS) and similar standards.

Mobilization of a rapid and robust clinical research program that explores whether investigational therapeutics and vaccines are safe and effective to combat the next infectious disease epidemic will depend on strengthening capacity in low-income countries for response and research, engaging people living in affected communities, and conducting safety trials before an epidemic hits, says a new report from the National Academies of Sciences, Engineering, and Medicine.

Assistive products and technologies – such as wheelchairs, upper-limb prostheses, and hearing and speech devices – hold promise for partially or fully mitigating the effects of impairments and enabling people with disabilities to work, but in some cases environmental and personal factors create additional barriers to employment, says a new report from the National Academies of Sciences, Engineering, and Medicine.

New Report Outlines Research Agenda to Better Understand the Relationship Among Microbiomes, Indoor Environments, and Human Health

A new report from the National Academies of Sciences, Engineering, and Medicine examines policies and practices governing dual-use research in the life sciences – research that could potentially be misused to cause harm – and its findings identify multiple shortcomings.

Although the process used to develop the Dietary Guidelines for Americans (DGA) has become more evidence-based since its inception more than 30 years ago, it is not currently positioned to effectively adapt to changes such as food diversity and chronic disease prevalence, while also ensuring the integrity of the process, says a new congressionally mandated report from the National Academies of Sciences, Engineering, and Medicine.

Consumer access to effective and affordable medicines is an imperative for public health, social equity, and economic development, but this need is not being served adequately by the biopharmaceutical sector, says a new report from the National Academies of Sciences, Engineering, and Medicine.

The National Institute for Occupational Safety and Health (NIOSH) should lead a collaborative effort with the U.S. Bureau of Labor Statistics (BLS), Occupational Safety and Health Administration (OSHA), and the states to establish and strengthen regional occupational safety and health surveillance programs, says a new report by the National Academies of Sciences, Engineering, and Medicine.

A new report from the National Academies of Sciences, Engineering, and Medicine examines to what extent and in which ways health care utilization -- such as in-patient hospitalizations, emergency department use, and hospital readmission -- reflects disease severity, disability, and ability to perform gainful activity.

The Gulf Research Program (GRP) of the National Academies of Sciences, Engineering, and Medicine today announced 11 grant awards totaling $341,283 to assist in the recovery of Gulf Coast scientific research efforts impacted by hurricanes Harvey and Irma.

Introducing drone operations into the nation’s airspace can provide substantial benefits to society, such as preventing derailments, inspecting cell phone towers, delivering medical devices to patients in cardiac distress, and assisting firefighters, says a new congressionally mandated report by the National Academies of Sciences, Engineering, and Medicine.

The Gulf Research Program (GRP) of the National Academies of Sciences, Engineering, and Medicine today announced 11 grant awards totaling $287,565 to assist in the recovery of Gulf of Mexico region scientific research efforts impacted by hurricanes Harvey and Irma.

The Gulf Research Program (GRP) of the National Academies of Sciences, Engineering, and Medicine is collaborating with the Sea Grant Oil Spill Science Outreach Program to convene a series of workshops aimed at improving community preparedness for future oil spills.

A new report from the National Academies of Sciences, Engineering, and Medicine examines evidence on whether providing permanent supportive housing (PSH) – a combination of stable housing and supportive services -- to individuals who are experiencing homelessness improves their health.

While health care has made great strides in recent years with the proliferation of electronic health records (EHRs), establishment of regional health information exchanges, and development of data exchange standards and interfaces, interoperability among health care technologies remains very limited, says a new National Academy of Medicine (NAM) special publication.

The National Academies Keck Futures Initiative (NAKFI) is pleased to announce the publication of Collaborations of Consequence - NAKFI’s 15 Years of Igniting Innovation at the Intersections of Disciplines.

While computational reproducibility in scientific research is generally expected when the original data and code are available, lack of ability to replicate a previous study -- or obtain consistent results looking at the same scientific question but with different data -- is more nuanced and occasionally can aid in the process of scientific discovery, says a new congressionally mandated report from the National Academies of Sciences, Engineering, and Medicine.

Rev. Heber Brown III wants people to erase the term “food desert” from their vocabulary.

The National Academy of Medicine today announced Daniel Weinberger is the recipient of the 2019 Rhoda and Bernard Sarnat International Prize in Mental Health, for his fundamental role in elucidating the biological origins and genetic expressions of schizophrenia, and for transforming how clinicians, researchers, and the public understand mental illness.

We tend to think of the process of seeing as fairly objective — that our eyes are similar to cameras, neutrally taking in light and turning it into pictures. But research has shown that biases buried beneath our awareness can powerfully shape how we see.

For severe acute pain due to surgeries and medical conditions, there is a lack of guidance on the appropriate type, strength, and amount of opioid medication that clinicians should prescribe to patients, says a new report from the National Academies of Sciences, Engineering, and Medicine.

A new report from the National Academies of Sciences, Engineering, and Medicine recommends ways to make supply chains -- the systems that provide populations with critical goods and services, such as food and water, gasoline, and pharmaceuticals and medical supplies – more resilient in the face of hurricanes and other disasters, drawing upon lessons learned from the 2017 hurricanes Harvey, Irma, and Maria.

Five years after a landmark National Academies report on eyewitness identification, a lead author reflects on its impact.

Seniors who are experiencing social isolation or loneliness may face a higher risk of mortality, heart disease, and depression, says a new report from the National Academies of Sciences, Engineering, and Medicine. Despite the profound health consequences — and the associated costs — the health care system remains an underused partner in preventing, identifying, and intervening for social isolation and loneliness among adults over age 50.

A new rapid expert consultation from a standing committee of the National Academies of Sciences, Engineering, and Medicine responds to questions from the White House Office of Science and Technology Policy (OSTP) regarding the effectiveness of homemade fabric masks to protect others from the viral spread of COVID-19 from potentially contagious asymptomatic or presymptomatic individuals.

UATP has partnered the payment technology company

California Governor Gavin Newsom speaks to the press in the spin room after the sixth Democratic primary debate of the 2020 presidential campaign season co-hosted by PBS NewsHour & Politico at Loyola Marymount University in Los Angeles, California on December 19, 2019. ; Credit: AGUSTIN PAULLIER/AFP via Getty Images

After nearly two months of “safer at home” during the COVID-19 outbreak, the state of California appears to be taking its first steps towards reopening businesses and restarting the economy.

Governor Gavin Newsom announced on Monday during the daily press briefing he has held since the start of the outbreak that California will be entering the first phase of its four-stage plan and allowing certain retail businesses like bookstores, music stores, sporting goods stores and florists to reopen for pickup as early as Friday. Manufacturing and logistics can start in the retail supply chain again as well. There are also local control measures in effect that allow certain municipalities to decide themselves whether to move farther ahead in the process and reopen certain things like restaurant dining rooms, though anyone deciding to do so would have to submit “containment plans” to the state. Two cities in Orange County, which has been involved in a back-and-forth with Sacramento over his order last week closing all state and local beaches in OC, have been cleared to reopen their beaches after they submitted plans to the state last week for how they’d reopen the beaches while safely controlling crowds.

Guests:

Erika Ritchie, reporter for the Orange County Register covering South Orange County Coastal Communities; she tweets @lagunaini

Donald Wagner, Orange County Supervisor, 3rd District, which includes Anaheim Hills, Irvine, Orange, Tustin, and the unincorporated canyons; former Mayor of Irvine (2016-2019); tweets @DonWagnerCA 

Bob Whalen, mayor of Laguna Beach

Karen Farrer, mayor of the City of Malibu

Robert Garcia, mayor of Long Beach; he tweets @LongBeachMayor

This content is from Southern California Public Radio. View the original story at SCPR.org.

People wait in line to receive food at a food bank on April 28, 2020 in the Brooklyn borough of New York City.; Credit: Spencer Platt/Getty Images

United States unemployment has reached record numbers with more than 30 million Americans applying for benefits in just six weeks, according to the Guardian. Economists expect the labor market to take another unprecedented blow for the month of April. 

Roughly one in five people in California's workforce have applied for initial unemployment insurance benefits, including a "staggering" 37% of workers with no more than a high school diploma. That's the estimate of a  study from the California Policy Lab that analyzed unemployment insurance claims from March 15-April 11. According to the California Economic Development Department (EDD), L.A. County's unemployment rate jumped from 4.3% in February to 6.3% in March. The state of California launched its Pandemic Unemployment Assistance program last week, giving many independent contractors their first chance to apply for benefits.But applicants have had a tough time getting through the system because of technical difficulties with the state's website.

Today on AirTalk we check in on unemployment in the state. Plus, some people are making more money through unemployment benefits than when they were working. We talk to the writer of a recent Wall Street Journal piece that looks at the challenges that presents for businesses as states look to slowly reopen. Do you have questions about unemployment across the state or the application process? Join the conversation by calling 866-893-5722. 

With files from LAist. Read more from David Wagner here. 

Guests:

Eric Morath, labor economics and policy reporter for the Wall Street Journal, he’s based in Washington D.C.; he tweets @EricMorath

George Warner, attorney in the Wage Protection Program at Legal Aid at Work, a San Francisco based nonprofit law firm that assists low-income, working families throughout California; he tweets @readerznriderz

This content is from Southern California Public Radio. View the original story at SCPR.org.

Amoeba Music store, a Hollywood landmark is closed amid the COVID- 19 pandemic, on May 7, 2020, in Hollywood, California. ; Credit: VALERIE MACON/AFP via Getty Images

The City and County of Los Angeles began the process today of reopening some parts of the economy that had been shuttered due to COVID-19. 

Starting today, businesses including book stores, toy stores, sporting goods stores, florists and other “low-risk” retailers will be allowed to reopen for curbside service only. All other shopping will still need to be done over the phone or online. Businesses will also have to have strategies in place for stemming the spread of COVID-19 on site, which will need to include employee training, sanitation protocols and even screening measures. Offices, dine-in restaurants and shopping malls remain closed, as do beauty salons, barbershops, live event venues and other places where people might be in close proximity. Meanwhile, in Orange County, the final stretches of coastline were approved to reopen on Thursday, though they are under the same “active use” rules that the other beaches in OC have implemented in order to prevent people from congregating on beaches and in parking lots.

Today on AirTalk, we’ll talk about the specifics of what is and is not reopening today in L.A. City and County, get an update from the Los Angeles Flower Market in downtown, and find out about the latest on Orange County Beaches.

Guests:

Emily Guerin, reporter for KPCC covering small businesses; she tweets @guerinemily

Lisa Brenner, associate editor at LAist; she tweets @lisa_brenner

Laylan Connelly, beaches reporter for The Orange County Register; she tweets @ocbeaches

Candice Kim, whose parents owns a flower shop in Downtown LA that reopened today.

This content is from Southern California Public Radio. View the original story at SCPR.org.

Chef Chun Lei (l.) and restaurant owner Charles Lu (r.) in the kitchen of Shanghailander Palace in Arcadia.; Credit: Josie Huang/KPCC

This content is from Southern California Public Radio. View the original story at SCPR.org.

A spike in texts and calls to crisis hotlines reflects Americans' growing anxiety about the coronavirus and its impact on their lives.; Credit: Richard Bailey/Getty Images

Normally, Laura Mayer helps the most acutely suicidal callers find the nearest hospital emergency room. But in a pandemic, that has become a crisis counselor's advice of last resort.

"It's a difficult decision because we do know that by sending them into an overburdened health care system, they may or may not get the treatment that they need," says Mayer, who is director of PRS CrisisLink in Oakton, Va., which also takes calls for the National Suicide Prevention Lifeline. "The resources may or may not be there, and we're exposing them to the illness."

So instead, counselors are devoting more time to each caller, offering ad hoc therapy and coaxing them to talk through their pain. These days, that pain often has many sources: lost jobs, severed relationships and sick family.

"The type of call and the seriousness of the call is very different this year than it was in previous years," Mayer says. "There's environmental issues, internal issues, family issues. ... It's never one thing."

America's crisis centers and hotlines are themselves in crisis. As people grapple with fear, loneliness and grief, on a grand scale, those stresses are showing up at crisis hotlines. Not only are the needs greater, but their clients' problems are more acute and complex and offer a window into the emotional struggles Americans face.

Across the board, hotlines of all kinds are reporting increases in volume.

The Substance Abuse and Mental Health Services Administration saw a fivefold increase at its National Helpline in March. The Crisis Text Line says its volumes are up 40% in the pandemic, to about 100,000 conversations a month.

Volunteer counselors and good Samaritans are responding by lining up to help.

But Mayer says the heaviness takes its toll. Those offering this kind of support end up needing support themselves.

"This illness is starting to impact each of our crisis workers and counselors themselves personally," she says. "So everyone is kind of a client right now, and that's been really challenging."

Nancy Lublin, CEO and co-founder of the Crisis Text Line, says she is bracing for sustained need. "This echo of the physical virus, the mental health echo, we fear it's going to last a very long time and that the intensity will remain," she says.

Over the last two months, the focal point of the emotional pain has shifted, she says. Initially, the spike in traffic was over anxiety about the virus itself. That shifted to complaints of isolation. Now, texters talk of depression and grief.

"So we've doubled the number of conversations that are about grief, and there the top two words that we see are 'grandma' and 'grandpa,' " she says.

And it's no longer just young people texting. Adults are complaining of loneliness, sexual abuse and eating disorders.

"As the quarantines go on and continue, we're seeing it's the people over the age of 35 who are increasing at a higher percentage of our volume," Lublin says. "For the first time, we're seeing people over the age of 60 texting us."

Texting is an ideal medium, she says, for those stuck at home with no personal space: "You don't have to find a quiet space where no one else can hear you."

And for some, that might be the only form of escape. The text line has seen a 74% increase in references to domestic violence. "We see words like 'trapped' [and] 'hurt,' " says Lublin.

Many shelters have shut down, and some of those in-person centers, including the Salvation Army in Philadelphia, now rely on their own hotlines instead.

Arielle Curry, director of the Salvation Army's anti-human trafficking program, says many of her clients can't afford cell phones and have lost touch; those who remain in contact are in dire straits, searching for a shorter supply of money or drugs, and are often suicidal. Curry says addressing those acute emotional needs by phone is frustrating; sometimes she doesn't even know where they are and can't send help to intervene.

"You can't ... comfort someone and look them in their eyes and support them face-to-face," she says. That makes it hard, Curry says, not to feel helpless and hopeless herself.

This content is from Southern California Public Radio. View the original story at SCPR.org.

Most people infected with the novel coronavirus develop antibodies in response.

But scientists don't know whether people who have been exposed to the coronavirus will be immune for life, as is usually the case for the measles, or if the disease will return again and again, like the common cold.

"This to me is one of the big unanswered questions that we have," says Jeffrey Shaman, a professor of environmental health sciences at Columbia University, "because it really says, 'What is the full exit strategy to this and how long are we going to be contending with it?' "

He's one of many scientists on a quest for answers. And the pieces are starting to fall into place.

Antibodies, which are proteins found in the blood as part of the body's immune response to infection, are a sign that people could be developing immunity. But they are by no means a guarantee they will be protected for life – or even for a year.

Shaman has been studying four other coronaviruses that cause the common cold. "They're very common and so people seem to get them quite often," Shaman says. Ninety percent of people develop antibodies to those viruses, at least in passing, but "our evidence is those antibodies are not conferring protection."

That may simply because colds are relatively mild, so the immune system doesn't mount a full-blown response, suggests Dr. Stanley Perlman, a pediatrician who studies immunology and microbiology at the University of Iowa. "That's why people get colds over and over again," he says. "It doesn't really tickle the immune response that much."

He's studied one of the most severe coronaviruses, the one that causes SARS, and he's found that the degree of immunity depended on the severity of the disease. Sicker people remained immune for much longer, in some cases many years.

For most people exposed to the novel coronavirus, "I think in the short term you're going to get some protection," Perlman says. "It's really the time of the protection that matters."

Perlman notes that for some people the symptoms of COVID-19 are no worse than a cold, while for others they are severe. "That's why it's tricky," he says, to predict the breadth of an immune response.

And it's risky to assume that experiences with other coronaviruses are directly applicable to the new one.

"Unforutunately, we cannot really generalize what kind of immunity is needed to get protection against a virus unless we really learn more about the virus," says Akiko Iwasaki, a Howard Hughes Medical Institute investigator at the Yale University School of Medicine.

An immunobiologist, she is part of a rapidly expanding effort to figure this out. She and her colleagues are already studying the immune response in more than 100 patients in the medical school hospital. She's encouraged that most people who recover from the coronavirus have developed antibodies that neutralize the coronavirus in a petri dish.

"Whether that's happening inside the body we don't really know," she cautions.

Research like hers will answer that question, eventually.

But not all antibodies are protective. Iwasaki says some can actually contribute to the disease process and make the illness worse. These antibodies can contribute to inflammation and lead the body to overreact. That overreaction can even be deadly.

"Which types of antibodies protect the host versus those that enhance the disease? We really need to figure that out," she says.

The studies at Yale will follow patients for at least a year, to find out how slowly or quickly immunity might fade. "I wish there was a shortcut," Iwasaki says, "but we may not need to wait a year to understand what type of antibodies are protective."

That's because she and other immunologists are looking for patterns in the immune response that will identify people who have long-term immunity.

Researchers long ago figured out what biological features in the blood (called biomarkers) correlate with immunity to other diseases, says Dr. Kari Nadeau, a pediatrician and immunologist at the Stanford University School of Medicine. She expects researchers will be able to do the same for the new coronavirus.

Nadeau is working on several studies, including one that seeks to recruit 1,000 people who were previously exposed to the coronavirus. One goal is to identify people who produce especially strong, protective antibody responses. She says the antibody-producing cells from those people can potentially be turned into vaccines.

Another critical question she's zeroing in on is whether people who become immune are still capable of spreading the virus.

"Because you might be immune, you might have protected yourself against the virus," she says, "but it still might be in your body and you're giving it to others."

That would have huge public health implications if it turns out people can still spread the disease after they've recovered. Studies from China and South Korea seemed to suggest this was possible, though further studies have cast doubt on that as a significant feature of the disease.

Nadeau is also trying to figure out what can be said about the antibody blood-tests that are now starting to flood the market. There are two issues with these tests. First, a positive test may be a false-positive result, so it may be necessary to run a confirmatory test to get a credible answer. Second, it's not clear that a true positive test result really indicates a person is immune, and if so for how long.

Companies would like to be able to use these tests to identify people who can return to work without fear of spreading the coronavirus.

"I see a lot of business people wanting to do the best for their employees, and for good reason," Nadeau says. "And we can never say you're fully protected until we get enough [information]. But right now we're working hard to get the numbers we need to be able to see what constitutes protection and what does not."

It could be a matter of life or death to get this right. Answers to these questions are likely to come with the accumulation of information from many different labs. Fortunately, scientists around the world are working simultaneously to find answers.

You can contact NPR Science Correspondent Richard Harris at rharris@npr.org.

This content is from Southern California Public Radio. View the original story at SCPR.org.

; Credit: /Jackie Ferrentino for NPR

A lot is at stake for students taking Advanced Placement exams, even in normal times. If you score high enough, you can earn college credit. It's also a big factor in college applications. But for some students, the idea of studying right now feels impossible.

"I'm constantly thinking about making sure my family doesn't get sick and I don't get sick," says Elise, a high school junior outside Boston. (We're not using her full name because she's worried about hurting her college applications.)

Concerns about the coronavirus have put most standardized tests, such as the SAT and ACT, on hold this spring. But AP exams are going forward with a new online format — and that's raising questions about fairness.

Elise, 17, says she spent months preparing for what is typically a three-hour, multiple-choice and essay-based exam; she was blindsided when she learned it will now be an online, 45-minute, open-response test.

"I have no idea what I'm going to get when I open that test," she says.

Elise was hoping the College Board, which administers AP exams, would cancel this year's exams, as it did the spring SATs. But since the tests are being offered, she says she feels she has to take them. She worries it would look bad on her college applications if she opted out.

For other students, just the idea of taking the exam at home is causing anxiety. Kayleen Guzman, 17, from Boston says it's hard to find peace and quiet in her house right now.

"Currently, it's me, my mom, my dog, my sister and my stepdad," she explains. "Sometimes I feel like it's too much chaos."

But Guzman is glad she still has the opportunity to take the AP exams at all this year. She says she worked hard in her two AP classes and she wants the chance to earn college credit.

However, it's still unclear how much credit colleges will give students for this year's exams.

"None of us would say that we are confident that a 3 or 4 or 5 on the AP exam this year means the exact same thing as a 3, 4 and 5 on the exam last year," says Harvard University's Andrew Ho, who studies the reliability of educational tests.

Ho says that because of the new format, this year's AP exams won't be measuring the same thing as previous years' exams. For one, the new tests will cover less material. And changing where kids take it — from a proctored classroom to their laptops at home — is a big deal. But Ho adds, "Just because it's not completely comparable doesn't mean the College Board and colleges, through their own policies, couldn't adjust."

Some colleges are already adjusting. The University of California system has come out explicitly to say it won't change the way it credits AP scores. Other colleges that didn't want to go on the record say they are planning to change their policies, but the details weren't ready to share just yet.

In a statement, College Board spokesperson Jerome White said the organization decided to move forward with AP testing to give motivated students the opportunity to earn college credit. He added that the organization is making "a significant financial investment" to make the exams available online, from cheating prevention software to helping students who may not have an Internet connection or access to a computer.

Still, some educators worry that those efforts won't be enough.

"This situation has created a lot of distraction," says Savannah Lodge-Scharff, an AP Physics teacher for Boston Public Schools. She argues that without in-person classes, many students won't be able to engage with the material in the same way. On top of that, financial stress means many of her students are juggling additional responsibilities, like taking care of siblings.

"I have some of my students who are working 40, 50, 60 hours a week at the grocery store right now in the fear their parents are going to be laid off," she explains.

And then there's the question of geographic equity. This year's exams will be administered at the same time worldwide, meaning students in Hong Kong will be up at midnight to take it.

This content is from Southern California Public Radio. View the original story at SCPR.org.

Patt Morrison's outfit from her June 5, 2013 Patt's Hats entry. ; Credit: Michelle Lanz/KPCC

There are so many things  I like about this dress – the sleeve length, the boat neck, the fact that it’s navy and not black, and the fact that it wasn’t made in Bangladesh – but mostly it’s the gaily asymmetrical floral design that caught my eye.

The pattern is front and back, and I’m a stickler about those things. It looks like I have been loaded down with festive leis, but also loaded with one too many Mai Tais, so the flower garlands are askew as if I were listing a little bit.

There’s more of my current yellow shoe madness with these very Michelle Obama kitten-heel slingbacks in two different tones of yellow, one a more acid shade and the other more canary, or perhaps chrome yellow. That’s not to be confused with “Crome Yellow,” a very sardonic Aldous Huxley novel parodying the artsy intelligentsia set of 1920s England.

I hope you can see this bracelet. It’s a piece of Victorian mourning jewelry. The Victorians went way, way over the top on this stuff; some of it borders on the ghoulish, with lockets containing elaborately braided locks or even portraits or scenes made entirely from the hair of the deceased. I can admire the artistry but the sentiment can seem excessive. This piece, though, has a black and white enamel border around a tiny fly. Why a fly, I wondered. Then I read the inscription inside:

“From JR to AHR [clearly a husband to a wife] in loving memory of our darling little May Queen, died 7th August 1880, age 14 Mos.”

That inscription made the fly make sense. It’s a mayfly, a creature that lives a few days, or even just a few minutes, and here was this little girl, born in May – hence the May Queen reference to the mythical springtime queen of antiquity -- and died barely a year thereafter. So sweet, so sad, so human, all from an inscription on a bracelet. The girl’s parents are long dead, and so too are any siblings she may have had, but it can touch us more than 130 years later.

This content is from Southern California Public Radio. View the original story at SCPR.org.

Before he Picks this Week's featured File Exchange submission, Brett would like to give a nod of appreciation to the developers of the Image Processing Toolbox. Back in September of 2018, I wrote... read more >>

Will Davidson and his Minecraft creation, modeled off the Santa Cruz Mission; Credit: Steve Henn

Minecraft is a deceptively simple video game. You're dropped into a virtual world, and you get to build things. It's like a digital Lego set, but with infinite pieces.

Its simplicity makes it a big hit with kids, like 10-year old Will Davidson. Last year, Will built a Spanish mission for a school report. He modeled his off the Santa Cruz Mission. "I made a chapel over here," Davidson says. "I also have a bell tower."

After he turned in his report, he added a few things. Like skeleton archers. "And zombies ... and exploding things, and spiders, that try to kill you," he said.

Minecraft is popular with kids because they're free to create almost anything, says Ramin Shokrizade, a game designer.

Also, kids aren't manipulated into clicking buttons to buy add-ons within the game. In other games, designers give players a special power for free at first, then take it away and offer it back at a price.

Zynga, the creator of Farmville, calls this fun pain, according to Shokrizade. "That's the idea that, if you make the consumer uncomfortable enough, and then tell them that for money we'll make you less uncomfortable, then [they] will give us money," he says.

Kids, Shokrizade says, are especially susceptible to this — and Minecraft has a loyal following, in part, because it doesn't do it.

Susan Linn, from the Campaign for a Commercial-Free Childhood, agrees. She says a big reason she likes Minecraft is because after you purchase the game upfront, that's it.

"Parents don't have to worry that their kids are going to be targeted for more marketing," Linn says. "How forward-thinking!"

But Linn is worried. Microsoft bought Mojang, the company that created Minecraft, on Monday for $2.5 billion, and she says that any time a large company spends billions to acquire a smaller company, executives are bound start looking for new ways to get even more money out of it.

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Machine learning algorithms can sometimes do a great job with a little help from human expertise, at least in the field of materials science. In many specialized areas of science, engineering and medicine, researchers are turning to machine learning algorithms to analyze data sets that have grown too large for humans to understand. In materials science, success with this effort could accelerate the design of next-generation advanced functional materials, where development now usually depends on old-fashioned trial and error. By themselves, however, data analytics techniques borrowed from other research areas often fail to provide the insights needed to help materials scientists and engineers choose which of many variables to adjust -- and the techniques can't account for dramatic changes such as the introduction of a new chemical compound into the process. In a new study, researchers explain a technique known as dimensional stacking, which shows that human experience still has a role to play in the age of machine intelligence. The machines gain an edge at solving a challenge when the data to be analyzed are intelligently organized based on human knowledge of what factors are likely to be important and related. "When your machine accepts strings of data, it really does matter how you are putting those strings together," said Nazanin Bassiri-Gharb, the paper's corresponding author and a scientist at the Georgia Institute of Technology. "We must be mindful that the organization of data before it goes to the algorithm makes a difference. If you don't plug the information in correctly, you will get a result that isn't necessarily correlated with the reality of the physics and chemistry that govern the materials."

Image credit: Rob Felt/Georgia Tech

There is a common assumption that plant species are more inclined to thrive in a non-native community than a native one, sometimes becoming 'invasive'. However, this behaviour is likely to be quite unusual and invasive alien plants are actually an important exception, according to a new study. Much can be learned from the population of a species 'at home' and should be included in official assessment criteria.

Global air quality will significantly deteriorate by 2050 unless further steps are taken to cut current emissions from human activities, according to recent research. Most people around the world will be affected by worsening air quality with hotspots of particularly poor air occurring in China, northern India and the Middle East.

Research into mercury has identified two genes in bacteria that appear to be required for turning the metal into its most toxic form, methylmercury. The study adds to a growing body of research that helps us to understand the transformations that mercury undergoes in the environment and the microbes involved in these transformations.