Science & Tech News

Mac World

  • Best wireless earbuds: Free yourself from the tyranny of cords
    Earbud makers have been busy doing away with wires—a good thing whether or not your phone still has a headset jack. At most, Bluetooth earbuds might have a wire that connects the buds themselves to each other—a nice option if you’re prone to misplacing small objects, or you want in-line controls. This is often the more affordable option too, although that is changing over time.So-called true wireless earbuds are just that, free of any wire whatsoever. Apple AirPods are the standard bearer of this category, but there are plenty of alternatives—some more worthy than others.That’s just one decision you have to make. Wireless earbuds also vary on price, sometimes greatly, and some might be better for audiophiles while others are better for sports. Our picks for best wireless earbuds run the gamut, so you can easily find a pair that meets your needs. Read our guide on what to look for in wireless earbuds below our recommendations.To read this article in full, please click here
  • ’Greyhound’ review: A good, but forgettable, film that’s unlikely to build Apple TV+ buzz
    In Greyhound, Tom Hanks plays George Krause, a U.S. naval officer whose first command is in charge of a destroyer escort group in World War II...annnnd your dad is already watching it.This is only the third non-documentary film to release on Apple TV+, and it is easily the “biggest” release yet. It is a bombastic war film that looks fantastic and definitely feels made for the big screen. Originally a Sony Pictures film intended for theatrical release, Apple bought the distribution rights when Sony killed the cinema release due to COVID-19.It’s worth watching, especially for World War II buffs; this is Tom Hanks, after all. But the surprisingly short run-time (just over 1 hour 20 minutes until the credits roll) leaves no time for character development.To read this article in full, please click here
  • Here are all the Apple Arcade games that support controllers
    Apple Arcade is here, and you can play some of the subscription service’s many games with select models of Xbox One and PlayStation 4 controllers as well as Mfi (Made for iOS) controllers like the SteelSeries Nimbus+.To read this article in full, please click here
  • Apple Arcade: 'Creaks' is available now
    Apple’s new Apple Arcade subscription-based gaming service is basically Apple’s way of helping customers sort through the chaff in the App Store, as the highly curated service features premium games that are untainted by in-app purchases and ads. If all goes well, it could elevate the perception of mobile gaming in general.Got questions? We've got plenty of answers. Updated 07/10/20: Added puzzle adventure game Creaks to the list of available games.  To read this article in full, please click here
  • The first Apple silicon-based MacBooks are coming soon—and big changes may be in store
    When Apple announced its move to make its own processors for the Mac, it also promised that the transition would begin sooner than we thought, with the first models arriving by the end of this year. Now we have a better look at Apple’s roadmap thanks to a new report from Ming-Chi Kuo.According to MacRumors, the first non-Intel Mac will be a refresh to the 13-inch MacBook Pro, which was most recently updated in May with a new scissor keyboard and faster processors. Kuo doesn’t give much in the way of details other than the new processor, so it could simply be a swap to show off how fast the new chips are. The 13-inch Pro will reportedly be followed by a new MacBook Air, which could also arrive later this year or early next.To read this article in full, please click here
  • How to check your iCloud media to see if it remains in place
    iCloud Photos offers two options for syncing images and videos across your devices and into your iCloud account’s cloud storage: downloading and retaining originals or “optimizing storage,” which means only thumbnails are retrieved—full-resolution media is downloaded as needed, but otherwise not retained to free up storage on your device.One reader switched to Download and Keep Originals on their iPhone, but didn’t have enough storage space. They believe about 2,000 images are missing. They are worried about switching back to optimized—will that permanently delete those images?It’s likely they are not, but rather the phone stopped downloading because it lacked storage. iCloud Photos doesn’t delete images in that case; it just stops syncing them.To read this article in full, please click here
  • Everything new with Maps in iOS 14
    Apple Maps got off to an ignominious start, but Apple has done a really great job in the last couple years of bringing it up to par.The new in-house maps data has now expanded throughout the entire U.S. and it has made a huge difference in the precision, accuracy, and reliability of Maps. Though not technically part of iOS 14, Apple is expanding its new map data throughout the U.K., Canada, and Ireland this year.The new maps data is only one piece of the puzzle. When you update to iOS 14 this fall, you can expect these useful new features.Cycling directions Walking, driving, and transit directions are table stakes these days. What about getting around on your bike?To read this article in full, please click here
  • Tribit XFree Go headphone review: Amazing sound, great price, and one glaring flaw
    The Tribit XFree Go headphones punch far above their weight, sonically: sadly, the controls locked up after an hour or so of sustained use.
  • Macworld's July digital magazine: The new MacBook Pro
    Every day, Macworld brings you the essential daily news and other info about all things Apple. But staying on top of that torrent of information can be a constant challenge. One solution: the Macworld digital magazine. Exclusive content in the July issue This month, read Macworld's exlusive Guide to Apple Arcade. It's time to get your game on with Apple's gaming service. Also this month we review the 13-inch MacBook Pro (mid 2020): this $1799 model delivers a modest CPU and big graphics boost. Plus, check out our review of the new 2020 iPad Pro.Also in this month’s issue:• MacUser: What will the ARM Mac line-up look like? Plus, having problems with Bluetooth audio quality on a Mac? We have ways to fix itTo read this article in full, please click here
  • iPadOS 14 FAQ: All the new features in the Public Beta
    Later this fall, Apple will launch a brand new version of iPadOS that brings a bunch of new changes to its iconic tablet. Here’s everything that you’re getting, how to get it, and whether your iPad will be able to get it.Update 07/09/20: Apple has released Public Beta 2 of iPadOS 14.What are the new features? App design The biggest change you’re going to see on your iPad is with apps. Apple is bringing a refined design language to the iPad, with sidebars, pull-down menus, and toolbars that look more like Mac apps than ever before. Apple Tablet apps have new sidebars, toolbars, and menus in iPadOS 14.To read this article in full, please click here
  • tvOS 14: Apple releases the first Public Beta, here's how to get it
    Apple’s tvOS isn’t its most popular operating system, but if you have an Apple TV, you definitely care about what each major new version brings.With tvOS 13 (and subsequent point releases) we got a lot of big features like interface changes, Xbox and PlayStation controller support, multiple users, and Control Center. By comparison, the features coming in tvOS 14 are minor, but sometimes the little things makes all the difference. Here’s what you can expect when tvOS 14 launches this fall.Update 07/09/20: Apple has released Public Beta 2 of tvOS 14.How to get the tvOS 14 beta If you’re a registered developer, you can go to to get a beta profile, which must then be installed on your Apple TV hardware through Xcode on a Mac.To read this article in full, please click here
  • Apple releases iOS 14 and iPadOS 14 Public Beta—here's how to get it
    We’ve told you about the many big changes and new features in iOS 14 and iPadOS 14, including an awesome new redesign of the home screen with Widgets and the App Library. For the last several years, Apple has made its operating systems available in a public beta, so you can kick the tires and help find bugs before its release in the fall.If you’re interested in running the iOS 14 or iPadOS 14 public beta, here’s how you get it.To read this article in full, please click here
  • Got a GoPro Hero 8? Use it as a webcam for your Mac
    With the COVID-19 pandemic and people working from home, it has become more apparent that the Mac has mediocre webcams. I’ve even stopped using Apple’s webcam, instead using a camcorder that was gathering dust in my garage. I got a few compliments about the image quality during a recent staff meeting.TechCrunch on Thursday reported that the GoPro Hero 8 action camera can now be used as a Mac webcam, thanks to the new GoPro Webcam software for Mac. The software, which is in beta, allows the Hero 8 to be used via USB; previously, you had to use dongles and HDMI cables. GoPro has complete details on how it works.To read this article in full, please click here
  • Harmony is offering a full refund to anyone who ever bought its $250 Alexa remote
    Harmony is discontinuing its Alexa-powered Express remote this year, but it's offering a full refund or upgrader to anyone who ever bought one.
  • Don’t keep your Mac laptop charged to 100 percent all the time. Here’s why
    If you leave your MacBook, MacBook Pro, or MacBook Air plugged in all the time—no matter the vintage—the battery suffers wear for being charged to full. Over time, the maximum charged capacity diminishes and you lose many minutes—even hours—of usable time. It is just a characteristic of the lithium-ion batteries in laptops and nearly all modern electronics.Here is a quick list of the best practices for managing your MacBook's battery.  Routinely unplug your laptop, as frequently as daily, and let it drop its power down to the 30 to 40 percent range. Don’t fully discharge your battery regularly—that is, don’t let it run down to zero. As Battery University (not a degree-granting institution) notes, “If at all possible, avoid full discharges and charge the battery more often between uses.…There is no memory and the battery does not need periodic full discharge cycles to prolong life.”To read this article in full, please click here
  • Nine great things that cord-cutting brought us
    Still think cord-cutting is no better than cable? Here's a reality check.
  • What you need to know about Thunderbolt 4
    Update 07/08/20: Apple confirmed to The Verge that it intends to continue supporting Thunderbolt on Macs with Apple silicon.The USB Type-C connector is wonderful in many ways, but its ubiquity among modern computer interconnects has made it home to a host of confusing standards and capabilities. When you see that connector, you never know what you’re going to get: Is it USB 3 or 3.2? Maybe the upcoming USB4? What is the maximum speed? Does it have Power Delivery? Can I hook up an external display, and to what resolution? How fast is it?To read this article in full, please click here
  • What to do when a Time Machine copy to an external drive is enormously larger than expected
    Time Machine uses a clever technique to make snapshots of your Mac backups. Instead of just creating copies of files that have changed since the previous backup—incremental archiving—Time Machine in macOS creates effectively a copy of each backed up volume. The clever part is that it doesn’t duplicate any file that’s remained the same between snapshots; it just adds the newly updated files.macOS gets away with this by using “hard links,” something introduced several releases ago in which a file on a given volume can be referenced multiple times from a single central copy. It exists just once on the volume, taking up only that amount of storage. Each reference is just a few bytes. Unlike an alias in the Finder, a hard link acts to the operating system just as if it were the original file, including when it’s modified. You only wind up deleting the file if every hard link is deleted. (Essentially, deleting all but one hard link reverts it to just being a single copy of a file.)To read this article in full, please click here
  • The switch to Apple silicon: Will the Touch Bar survive?
    The arrival of Macs running Apple silicon isn’t just about faster, more power efficient processors. It’s also an opportunity for Apple to reinvent Mac hardware using lessons learned from the iPhone and iPad.Apple can take this time to also reconsider some Mac hardware decisions of the past decade, most notably the Touch Bar on the MacBook Pro. While some users swear by it, the Touch Bar generally seems to have been received with indifference or scorn. Updates over the years have done almost nothing to improve it, making me wonder if even Apple has truly embraced the thing.To read this article in full, please click here
  • Uninterruptible power supply buyers guide
    A surge protector will save your equipment; a UPS will do that and save your work, too—or let you save your game during a blackout.
  • How to buy a refurbished Mac, MacBook, iPhone, or iPad from Apple
    Looking for a way to save some money on the latest Apple products? Consider a refurbished MacBook, refurbished iPhone, or refurbished iPad from the Apple Certified Refurbished store. A refurbished product is just like a new, but at a lower price.Here’s a quick guide with links to the best deals you can find on the refurb store, along with a FAQ guide if you want to know more about the ins and outs of the Apple Certified Refurbished store and buying a refurbished MacBook, desktop Mac, iPhone, or iPad. We make a recommendation of what to buy, but feel free to check out the store inventory to find the right model for you.To read this article in full, please click here
  • Report: HomePod beta adds the option to select default music, podcast, audiobook service
    According to a report from MacRumors, the select group of beta testers for this fall’s HomePod release have noticed something sort of remarkable: the ability to choose a music, podcasts, and audiobooks service other than Apple Music.Apple does not conduct public or developer beta tests of HomePod software, but rather issues betas through a select group of AppleSeed members. HomePod software is otherwise updated along with the iOS software on the iPhone from which it was set up.According to testers, the HomePod options screen in this new beta adds the ability to select the default service for Music, Podcasts, and Audiobooks. It defaults to Apple Music, but would presumably let users choose Spotify, Amazon Music, or other competing services (those services need to implement this support, and none have done so yet).To read this article in full, please click here
  • iOS 14 FAQ: Features, release date, supported devices, beta, and more
    As expected, Apple announced the next major revision to its phone operating system at its WWDC 2020 virtual developer conference. And as usual, the new iOS is full of features big and small. This story will be periodically updated, and we will break down everything you need to know about iOS 14: the significant features and changes, the beta test, the release date, and how to install the beta. Here is what awaits you when you update your iPhone to the latest version of iOS this fall.Update 07/09/20: Apple has released Public Beta 2 of iOS 14.A new home screen with the App Library Apple One swipe past your last home screen is the App Library, where all your apps live, and are automatically organized.To read this article in full, please click here
  • Best VPN services: Reviews and buying advice
    Surfing the web through a virtual private network (VPN) can keep your identity and data safe and secure online. We show you what to look for in a VPN and help you pick the best one for your needs.
  • Apple TV+ originals: Shows based on the works of 'Where the Wild Things Are' author Maurice Sendak
    Apple is planting its own flag in the streaming wars with Apple TV+, its in-house streaming service that focuses almost entirely on original programming rather than an extensive library of existing TV shows or movies.The company is said to be spending several billion dollars a year on original programming. That’s a lot of TV! Apple is attracting some of the best talent in TV and film production, including huge stars and directors, and locking down the television and movie rights to best-selling books.Though the service has been available less than a year and and doesn't yet have a lot of shows or films available, there’s a lot in the works. This is a list of all its content for it that we know of so far, along with details about prominent stars, directors, producers, and release dates.To read this article in full, please click here
  • After the Mac's processors, Apple's next transition is apps
    Over the next two years, we're going to hear a lot about Apple’s next transition. The move from Intel to Apple’s homegrown silicon is one of the biggest moves the company has ever made, one that’s sure to impact the rest of the industry as much as the Mac itself.But that’s not the only transition that Apple is embarking on. It might not have gotten its own segment during the WWDC keynote, but Apple laid down the tracks for a major shift away from traditional apps over the next several years. It won’t be as sudden or even as quick as the move to Apple’s silicon, but before long apps aren’t going to be something we need to download before we can use them. Rather they’re going to be ever-present, glanceable, dynamic, and agnostic extensions that adapt to both our location and the device we’re using without needing to visit a store.To read this article in full, please click here
  • The last line dance: Microsoft closes its stores
    Lost in the hubbub of WWDC and Apple’s announcement of its switch to its own processors for Macs is sad news from the Pacific Northwest.“Microsoft is permanently closing its retail stores.” (Tip o’ the antlers to Tay.)People will long remember this day as the day the line dancing died.To read this article in full, please click here
  • Eufy Security Indoor Cam 2K Pan and Tilt review: Full-room coverage with AI detection
    This pan-and-tilt camera reduces blind spots and uses smart detection to deliver only the activity you want to know about.
  • Reddit, LinkedIn, TikTok will issue updates to stop apps from copying the clipboard in iOS 14
    iOS 14, Apple’s upcoming major update to the iPhone operating system, has a security feature that tells users if an app is copying the clipboard in the background without permission from the user. This may not sound like a big deal, but think about the times you have, say, copied a password from a password manager and pasted it into an app to access an account, or copied a credit card number and pasted it into a website to buy something. When you copy the info, it goes to the clipboard.Since the developer beta release of iOS 14, it has been revealed that several apps have been copying data from the clipboard. Reddit, LinkedIn, TikTok, and many other apps are just a few that triggered the iOS 14 alert.To read this article in full, please click here
  • Five ways Apple is opening up its products with iOS 14 and macOS Big Sur
    Nobody would credibly argue that Apple is a very open tech company, but the walled garden is at least getting a few new gates this fall with the release of its new operating systems (iOS 14, iPadOS 14, and macOS Big Sur).Apple is making it possible for more outside devices and software to work with its own technology, and that’s going to make the Apple ecosystem stronger. Here are five ways Apple is embracing the outside world with its fall operating system releases.To read this article in full, please click here


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Science Daily

  • Study links abnormally high blood sugar with higher risk of death in COVID-19 patients not previously diagnosed with diabetes
    New research from Wuhan, China shows that, in patients with COVID-19 but without a previous diagnosis of diabetes, abnormally high blood sugar is associated with more than double the risk of death and also an increased risk of severe complications.
  • Couldn't socially distance? Blame your working memory
    A new study highlights the critical role that working memory capacity plays in social distancing compliance during the early stages of the COVID-19 pandemic.
  • Physicians give first comprehensive review of COVID-19's effects outside the lung
    Based on their experience treating COVID-19, physicians have assembled critical information about the coronavirus's effects on organs outside the lungs.
  • Like humans, beluga whales form social networks beyond family ties
    A groundbreaking study is the first to analyze the relationship between group behaviors, group type, group dynamics, and kinship of beluga whales in 10 locations across the Arctic. Results show that not only do beluga whales regularly interact with close kin, including close maternal kin, they also frequently associate with more distantly related and unrelated individuals. Findings will improve the understanding of why some species are social, how individuals learn from group members and how animal cultures emerge.
  • Extraordinary regeneration of neurons in zebrafish
    Biologists have discovered a uniquely rapid form of regeneration in injured neurons and their function in the central nervous system of zebrafish. They studies the Mauthner cells, which are solely responsible for the escape behavior of the fish, and previously regarded as incapable of regeneration. However, their ability to regenerate crucially depends on the location of the injury.
  • Study pinpoints brain cells that trigger sugar cravings and consumption
    New research has identified for the first time the specific brain cells that control how much sugar you eat and how much you crave sweet tasting food. The study specifically identifies the brain cells that respond to the hormone FGF21 to regulate sugar intake and sweet taste preference.
  • Arctic Ocean changes driven by sub-Arctic seas
    New research explores how lower-latitude oceans drive complex changes in the Arctic Ocean, pushing the region into a new reality distinct from the 20th-century norm.
  • Fast-spreading mutation helps common flu subtype escape immune response
    Strains of a common subtype of influenza virus, H3N2, have almost universally acquired a mutation that effectively blocks antibodies from binding to a key viral protein.
  • Invention: 'Nanocage' tool untangles (molecular) spaghetti
    Scientists have invented a new tool -- they call it a ''nanocage'' -- that can catch and straighten out molecule-sized tangles of polymers - -whether made of protein or plastic. This tool -- that works a bit like pulling a wad of thread through a needle hole -- opens a new way to create custom materials that have never been made before.
  • Global COVID-19 registry finds strokes associated with COVID-19 are more severe, have worse outcomes and higher mortality
    Patients with COVID-19 who have an acute ischemic stroke (AIS) experience more severe strokes, have worse functional outcomes and are more likely to die of stroke than AIS patients who do not have COVID-19. The wide range of complications associated with COVID-19 likely explain the worse outcomes.
  • COVID-19 can be transmitted in the womb, reports pediatric infectious disease journal
    A baby girl in Texas -- born prematurely to a mother with COVID-19 -- is the strongest evidence to date that intrauterine (in the womb) transmission of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) can occur, according to a new report.
  • Changes in the immune system can promote healthy aging
    As we age, the immune system gradually becomes impaired. One aspect of this impairment is chronic inflammation in the elderly, which means that the immune system is constantly active and sends out inflammatory substances. Such chronic inflammation is associated with multiple age-related diseases including arthritis and Alzheimer's disease, and impaired immune responses to infection. One of the questions in ageing research is whether chronic inflammation is a cause of aging, or a consequence of the aging process itself? Scientists have found evidence suggesting that increased inflammation causes the aging process to speed up, and that there is a fine balance between maintaining immune system function and longevity.
  • Microscopy technique reveals nanoscale detail of coatings as they dry
    Thin film coatings do more than add color to walls. For example, they can be used as pharmaceutical devices. How these coatings dry can change their properties, which is especially important for films used in drug delivery. Engineering researchers studying the in situ drying behavior of thin film coatings are visualizing particle interactions with groundbreaking precision. Their findings could impact the development of drug delivery technology.
  • Understanding the love-hate relationship of halide perovskites with the sun
    Perovskiet solar cells are at the center of much recent solar research. The material is cheap and almost as efficient as silicon. However, perovskite cells have a love-hate-relationship with the sun. The light they need to generate electricity, also impairs the quality of the cells, limiting efficiency and stability over time. Research now sheds new light on the causes of this degradation.
  • Why lopinavir and hydroxychloroquine do not work on COVID-19
    Lopinavir is a drug against HIV, hydroxychloroquine is used to treat malaria and rheumatism. Until recently, both drugs were regarded as potential agents in the fight against the coronavirus SARS-CoV-2. Researchers have now discovered that the concentration of the two drugs in the lungs of Covid-19 patients is not sufficient to fight the virus.
  • Robust high-performance data storage through magnetic anisotropy
    A technologically relevant material for HAMR data memories are thin films of iron-platinum nanograins. An international team has now observed experimentally for the first time how a special spin-lattice interaction in these iron-platinum thin films cancels out the thermal expansion of the crystal lattice.
  • Construction: How to turn 36 seconds into USD 5.4 billion
    A team of researchers have, for the first time ever, linked 40 years of productivity data from the construction industry with the actual work done. The results show that productivity in the construction industry has been declining since the 1970s. The results also explain the decline and how to achieve far more efficient construction in North America and Europe.
  • T-ray camera speed boosted a hundred times over
    Scientists are a step closer to developing a fast and cost effective camera that utilizes terahertz radiation, potentially opening the opportunity for them to be used in non-invasive security and medical screening.
  • An early morning whey protein snack increases morning blood sugar level in healthy people
    Consuming protein at night increases blood sugar level in the morning for healthy people, according to new research.
  • Less impact from wildfire smoke on climate
    New research revealed that tiny, sunlight-absorbing particles in wildfire smoke may have less impact on climate than widely hypothesized because reactions as the plume mixes with clean air reduce its absorbing power and climate-warming effect.
  • Researchers solve a 50-year-old enzyme mystery
    Advanced herbicides and treatments for infection may result from the unraveling of a 50-year-old mystery.
  • Children rarely transmit COVID-19, doctors write in new commentary
    A commentary published in the journal Pediatrics concludes that children infrequently transmit COVID-19 to each other or to adults and that many schools, provided they follow appropriate social distancing guidelines and take into account rates of transmission in their community, can and should reopen in the fall.
  • Farmers' climate change conundrum: Low yields or revenue instability
    Climate change will leave some farmers with a difficult conundrum, according to a new study by researchers from Cornell University and Washington State University: Either risk more revenue volatility, or live with a more predictable decrease in crop yields.
  • Liquid metal synthesis for better piezoelectrics: Atomically-thin tin-monosulfide
    Scientists have applied liquid-metal synthesis to piezoelectrics, advancing future flexible, wearable electronics, and biosensors drawing their power from the body's movements. Piezoelectric materials such as atomically-thin tin-monosulfide (SnS) convert mechanical forces or movement into electrical energy. Along with their inherent flexibility, this makes them candidates for flexible nanogenerators in wearable electronics or internal, self-powered biosensors.
  • Scientists may have found one path to a longer life
    Mifepristone appears to extend lifespan in evolutionarily divergent species Drosophila and C. elegans in ways that suggest it may do so in humans, as well.
  • Satellite data show severity of drought summers in 2018 and 2019
    Measurements by the GRACE-FO satellite mission show a decline in water storage in Central Europe by up to 94 percent compared with seasonal fluctuations. The changes are so serious that a recovery within one year is not to be expected. The water shortage in the years 2018 and 2019 is thus the largest in the entire GRACE and GRACE-FO measurement campaign of almost 20 years.
  • Study sheds light on bushfires' microclimate impact
    A study examining the urban microclimatic impact of the 2019-20 Australian bushfires has uncovered how they affect local meteorological and air quality. Its findings could help understand the potential consequences of an increased rate and extension of bushfires, and especially regarding improving risk preparedness and coping strategies.
  • Study reveals scale of habitat loss for endangered birds
    A new study warns that the last remaining habitat for several endangered bird species in Europe could reduce by up to 50 per cent in the next century as farmers convert land to more profitable crops and meet increased demand for products such as olive oil and wine.
  • Sea surface temperature has a big impact on coral outplant survival
    A new study has shown that coral outplant survival is likely to drop below 50% if sea surface temperatures exceed 30.5 degrees Celsius and that survival rates can also be predicted by considering temperature conditions in the year prior to outplanting.
  • Scientists discover protective Alzheimer's gene and develop rapid drug-testing platform
    A gene has been discovered that can naturally suppress the signs of Alzheimer's Disease in human brain cells. The scientists have also developed a new rapid drug-screening system for treatments that could potentially delay or prevent the disease.
  • Neonatal exposure to antigens of commensal bacteria promotes broader immune repertoire
    Researchers have added fresh evidence that early exposure to vaccine-, bacterial- or microbiota-derived antigens has a dramatic effect on the diversity of antibodies an adult mammal will have to fight future infections by pathogens. This antibody diversity is called the clonal repertoire -- basically different single cells with distinct antibody potential that can multiply into a large clone of cells, all producing that distinct antibody.
  • Community initiative increases teenage use of effective contraception
    Study finds that teenagers utilize Long-Acting Reversible Contraception (LARC) at a rate five times higher than the United States as a whole.
  • A complex gene program initiates brain changes in response to cocaine
    Researchers used single-nucleus RNA sequencing to compare transcriptional responses to acute cocaine in 16 unique cell populations from the brain nucleus accumbens. The atlas is part of a major study that used multiple cutting-edge technologies to describe a dopamine-induced gene expression signature that regulates the brain's response to cocaine. The study shows neurobiological processes that control drug-related adaptations and reveals new information about how transcriptional mechanisms regulate activity-dependent processes within the central nervous system.
  • Key role of immune cells in brain development
    Researchers have identified how specific brain cells interacting during development could be related to neurological and neuropsychiatric diseases, including some that occur later in life.
  • New study supports remdesivir as COVID-19 treatment
    A new study found that remdesivir potently inhibited SARS-CoV-2, the virus which causes COVID-19, in human lung cell cultures and that it improved lung function in mice infected with the virus.
  • Salmonella biofilm protein causes autoimmune responses -- Possible link with Alzheimer's
    Scientists have demonstrated that a Salmonella biofilm protein can cause autoimmune responses and arthritis in animals.
  • New evidence of long-term volcanic, seismic risks in northern Europe
    An ancient European volcanic region may pose both a greater long-term volcanic risk and seismic risk to northwestern Europe than scientists had realized, geophysicists report. The densely populated area is centered in the Eifel region of Germany, and covers parts of Belgium, the Netherlands, France and Luxembourg.
  • CT of coronavirus disease (COVID-19) versus CT of influenza virus pneumonia
    A new article investigating the differences in CT findings between coronavirus disease (COVID-19) pneumonia and influenza virus pneumonia found that most lesions from COVID-19 were located in the peripheral zone and close to the pleura, whereas influenza virus was more prone to show mucoid impaction and pleural effusion. The more important role of CT during the present pandemic is in finding lesions and evaluating the effects of treatment.
  • Science education community should withdraw from international tests, experts urge
    The science community should withdraw from involvement in international tests such as PISA because they have forced schools to adopt 'narrow' curricula and pedagogies, a study says.
  • Biologists trace plants' steady mitochondrial genomes to a gene found in viruses, bacteria
    Biologists have traced the stability of plant mitochondrial genomes to a particular gene - MSH1 - that plants have but animals don't. Their experiments could lend insight into why animal mitochondrial genomes tend to mutate.
  • Discovery reveals how plants make cellulose for strength and growth
    The discovery unveils the molecular machinery that plants use to weave cellulose chains into cable-like structures called 'microfibrils.'
  • Study identifies unique cells that may drive lung fibrosis
    This is one of the first comprehensive looks at lung cells using a technology called single-cell RNA sequencing. Instead of examining a mash-up of many cells from a tissue sample, single-cell sequencing allowed researchers in this study to closely examine the individual cells that make up the lungs; to identify their function, and ultimately understand the molecular changes that may be driving the disease.
  • Ways to keep buildings cool with improved super white paints
    Materials scientists have demonstrated ways to make super white paint that reflects as much as 98% of incoming heat from the sun. The advance shows practical pathways for designing paints that, if used on rooftops and other parts of a building, could significantly reduce cooling costs, beyond what standard white 'cool-roof' paints can achieve.
  • Safer CRISPR gene editing with fewer off-target hits
    The CRISPR system is a powerful tool for the targeted editing of genomes, with significant therapeutic potential, but runs the risk of inappropriately editing ''off-target'' sites. However, a new study shows that mutating the enzyme at the heart of the CRISPR gene editing system can improve its fidelity.
  • Scientists urge caution, further assessment of ecological impacts above deep sea mining
    A new study argues that deep-sea mining poses significant risks, not only to the area immediately surrounding mining operations but also to the water hundreds to thousands of feet above the seafloor, threatening vast midwater ecosystems. Further, the scientists suggest how these risks could be evaluated more comprehensively to enable society and managers to decide if and how deep-sea mining should proceed.
  • Fair justice systems need open data access
    Researchers are developing an A.I. platform that provides users with access to the information and insights hidden inside federal court records, regardless of their data and analytic skills.
  • Scientists trace the origin of our teeth from the most primitive jawed fish
    Scientists have digitally 'dissected', for the first time, the most primitive jawed fish fossils with teeth found near Prague more than 100 years ago. The results show that their teeth have surprisingly modern features.
  • Researchers find rise in broken heart syndrome during COVID-19 pandemic
    Researchers have found a significant increase in patients experiencing stress cardiomyopathy, also known as broken heart syndrome, during the COVID-19 pandemic.
  • Global wildlife surveillance could provide early warning for next pandemic
    Researchers propose a decentralized, global wildlife biosurveillance system to identify -- before the next pandemic emerges -- animal viruses that have the potential to cause human disease.
  • A 'regime shift' is happening in the Arctic Ocean
    Scientists find the growth of phytoplankton in the Arctic Ocean has increased 57 percent over just two decades, enhancing its ability to soak up carbon dioxide. While once linked to melting sea ice, the increase is now propelled by rising concentrations of tiny algae.
  • No association found between exposure to mobile devices and brain volume alterations in adolescents
    A new study of 2,500 Dutch children is the first to explore the relationship between brain volume and different doses of radiofrequency electromagnetic fields.
  • Why stakeholders in 'wind energy vs biological conservation' conflict have low mutual trust
    Each year, wind turbines are responsible for the death of hundreds of thousands of airborne animals such as bats. To find a constructive way out of this ''green-green'' dilemma, companies building and running wind turbines might have to work together with environmental experts and conservationists. Yet lack of trust between them can hinder effective collaboration. Scientists show: shared values are not sufficient to build trust, as beliefs and emotions have stronger influence.
  • Women who deliver by C-section are less likely to conceive subsequent children
    Women who deliver their first child by cesarean section (C-section) are less likely to conceive a second child than those who deliver vaginally, despite being just as likely to plan a subsequent pregnancy, according to researchers. The team followed more than 2,000 women for three years after they delivered their first child.
  • Study says inhalers OK to use amid COVID-19 concerns
    Researchers find that the benefits of inhalers for asthma sufferers outweigh the risks of contracting coronavirus, following concerns raised after WHO warned that steroids could reduce immunity.
  • Socio-economic, environmental impacts of COVID-19 quantified
    How is COVID-19 impacting people and the planet and what are the implications for a post-pandemic world? A new study quantifies the socio-economic losses and environmental gains.
  • Topological materials 'cherned' up to the maximum
    In topological materials, electrons can display behavior that is fundamentally different from that in 'conventional' matter, and the magnitude of many such 'exotic' phenomena is directly proportional to an entity known as the Chern number. New experiments establish for the first time that the theoretically predicted maximum Chern number can be reached -- and controlled -- in a real material.
  • Brain benefits of exercise can be gained with a single protein
    A little-studied liver protein may be responsible for the well-known benefits of exercise on the aging brain, according to a new study in mice. The findings could lead to new therapies to confer the neuroprotective effects of physical activity on people who are unable to exercise due to physical limitations.
  • 5G wireless networks have few health impacts, finds study using zebrafish model
    Findings from a new study into the effects of radiofrequency radiation generated by the wireless technology that will soon be the standard for cell phones suggest few health impacts.
  • What happens when food first touches your tongue
    A new study might explain why humans register some tastes more quickly than others, potentially due to each flavor's molecular size. The research also provided explanation as to why humans register taste more quickly when food or drink moves over their tongues quickly, as compared to when they are held in their mouth steadily.
  • Bats offer clues to treating COVID-19
    Bats carry many viruses, including COVID-19, without becoming ill. Biologists are studying the immune system of bats to find potential ways to 'mimic' that system in humans.

Popular Mechanics

Popular Science

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  • Signs of COVID-19 May Be Hidden in Speech Signals
    Vocal recordings of asymptomatic coronavirus patients reveal potential indicators of COVID-19 infection. Preliminary results hint at a biomarker in the vocal system coordination that can indicate the presence of COVID-19.
  • Amygdala Changes in Male Patients with Schizophrenia and Bipolar Disorder
    Study uncovers DNA hypermethylation is responsible for reduced amygdala volume in male patients with schizophrenia and bipolar disorder.
  • How the Brain Focuses While Ignoring Distractions
    Mouse study pinpoints the precise location in the brain where distracting stimuli are blocked, allowing for concentration on specific tasks. The findings could have implications for the treatment of ADHD and schizophrenia.
  • Brain Cells that Trigger Sugar Cravings and Consumption Identified
    FGF21, a hormone created in the liver in response to increased levels of sugar, acts in the brain to suppress sugar intake and controls the preference for sweet-tasting foods.
  • How Fear Transforms into Anxiety
    In anxiety, neural activity becomes elevated across many specific brain regions, and normal coordination between the networks becomes decreased.
  • Feeling with the Heart
    The brain suppresses the perception of the heartbeat, affecting our perception of other sensory stimuli. Researchers propose the brain's sensitivity to sensory stimuli depends on the cardiac cycle and the brain's perception of it.
  • Optimistic People Sleep Better
    Naturally optimistic people have a 70% lower chance of suffering from sleep disorders and insomnia, a new study reports.
  • Delirium, Rare Brain Inflammation and Stroke Linked to Covid-19
    Coronavirus infection can lead to an array of neurological complications, including delirium, stroke, and a rare, often fatal neuroinflammatory condition called ADEM. The neurological complications did not always correlate with the severity of respiratory symptoms. In some patients, brain inflammation was likely caused by an immune response to COVID-19, suggesting the neurological damage may be a result of immune system activation rather than the virus itself.
  • Astrocytes Shed Light on the Link Between Cannabis Use and Sociability
    Exposing mice to THC, researchers noted persistent activation of mitochondrial cannabinoid receptors located within astrocytes resulted in a cascade of molecular processing that led to dysfunctional glucose metabolism. The ability of astrocytes to transform glucose into "food" for neurons was reduced. The reduction resulted in a compromise in neural function, with a harmful impact on behavior. Specifically, social interactions were reduced for 24 hours post cannabis exposure.
  • Hearing Persists at the End of Life
    A new study provides evidence that hearing is the last sense to go during the process of active death. Many people become unresponsive during the final hours of life, however, EEG data revealed the dying brain responds to sounds throughout the final moments of life.
  • COVID-19 Spreads Ten Meters or More by Breathing
    Aerosolized coronavirus microdroplets remain in the air and pose a risk of exposure beyond the recommended 6-foot area for social distancing.
  • Brain Structural Elements in Psychiatric Disorders
    Comparing data from multiple neuroimaging studies, researchers found shared brain structural abnormalities between four psychiatric disorders, including schizophrenia and bipolar disorder. They also identified brain signatures unique to each condition.

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