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Archivo del Autor: Belen De Leon

Limiting social media use reduced loneliness and depression in new experiment

The idea that social media can be harmful to our mental and emotional well-being is not a new one, but little has been done by researchers to directly measure the effect; surveys and correlative studies are at best suggestive. A new experimental study out of Penn State, however, directly links more social media use to worse emotional states, and less use to better.

To be clear on the terminology here, a simple survey might ask people to self-report that using Instagram makes them feel bad. A correlative study would, for example, find that people who report more social media use are more likely to also experience depression. An experimental study compares the results from an experimental group with their behavior systematically modified, and a control group that’s allowed to do whatever they want.

This study, led by Melissa Hunt at Penn State’s psychology department, is the latter — which despite intense interest in this field and phenomenon is quite rare. The researchers only identified two other experimental studies, both of which only addressed Facebook use.

One hundred and forty-three students from the school were monitored for three weeks after being assigned to either limit their social media use to about 10 minutes per app (Facebook, Snapchat and Instagram) per day or continue using it as they normally would. They were monitored for a baseline before the experimental period and assessed weekly on a variety of standard tests for depression, social support and so on. Social media usage was monitored via the iOS battery use screen, which shows app use.

The results are clear. As the paper, published in the latest Journal of Social and Clinical Psychology, puts it:

The limited use group showed significant reductions in loneliness and depression over three weeks compared to the control group. Both groups showed significant decreases in anxiety and fear of missing out over baseline, suggesting a benefit of increased self-monitoring.

Our findings strongly suggest that limiting social media use to approximately 30 minutes per day may lead to significant improvement in well-being.

It’s not the final word in this, however. Some scores did not see improvement, such as self-esteem and social support. And later follow-ups to see if feelings reverted or habit changes were less than temporary were limited because most of the subjects couldn’t be compelled to return. (Psychology, often summarized as “the study of undergraduates,” relies on student volunteers who have no reason to take part except for course credit, and once that’s given, they’re out.)

That said, it’s a straightforward causal link between limiting social media use and improving some aspects of emotional and social health. The exact nature of the link, however, is something at which Hunt could only speculate:

Some of the existing literature on social media suggests there’s an enormous amount of social comparison that happens. When you look at other people’s lives, particularly on Instagram, it’s easy to conclude that everyone else’s life is cooler or better than yours.

When you’re not busy getting sucked into clickbait social media, you’re actually spending more time on things that are more likely to make you feel better about your life.

The researchers acknowledge the limited nature of their study and suggest numerous directions for colleagues in the field to take it from here. A more diverse population, for instance, or including more social media platforms. Longer experimental times and comprehensive follow-ups well after the experiment would help, as well.

The 30-minute limit was chosen as a conveniently measurable one, but the team does not intend to say that it is by any means the “correct” amount. Perhaps half or twice as much time would yield similar or even better results, they suggest: “It may be that there is an optimal level of use (similar to a dose response curve) that could be determined.”

Until then, we can use common sense, Hunt suggested: “In general, I would say, put your phone down and be with the people in your life.”


Source: TechCrunch

Why you’re about to see a lot of drifting Tesla Model 3 videos

Tesla Model 3 owners who opted for the Performance variant now have a reason to go to the track. Or, if history is a guide, they’ll skip the track and try the newly released Track Mode software feature in a parking lot or winding road.

Track Mode — to be clear — is designed for, and should only be used on closed autocross circuits and racetracks. Here’s why.

The software feature taps into the dual electric motors to squeeze even more performance out of the vehicle. But in a new way. Until now, Tesla has used the power produced by its dual motors and torque (the rotational force of an engine or, in this case, motor) to create a super-fast-accelerating vehicle. Now it’s using that same motor power and torque to turn the Model 3 into a cornering (and drifting) dynamo.

As Tesla explains in a blog post (and shows in the video below), the company replaced the stability control system with its own in-house Vehicle Dynamics Controller, “software developed specifically for Tesla vehicles that acts both as a stability control system and also as a performance enhancement on the track.”

This Vehicle Dynamics Controller allows for more rotation if needed. If the rotation is insufficient, the system commands a rear-biased torque. When rotation is excessive, it commands a front-biased torque. Track Mode also improves cornering by applying brake and motor torque at the same time to produce an increase in tractive force while cornering.

What all this means is that the system is designed to send all the power to the rear wheels while the driver is cornering, which pushes the tail out. If the rotation becomes excessive, the power is sent to the front wheels, pulling the vehicle up and out of the turn.

When enabled, Track Mode also increases regenerative braking. This gives the braking system a break (ahem) and sends more energy back into the battery. It also gives drivers more control with a single pedal (the accelerator). Meaning, the driver can simply lift a foot off the accelerator to get the braking they’re looking for as they approach a corner.

Track Mode also anticipates the strain on the powertrain, so it drops the temperatures of the battery and the drive units in preparation for the track and continues to cool them down between drive sessions.

What’s even more interesting is how Tesla fine-tuned the feature. Motor Trend’s Randy Probst ended up working with Tesla engineers during a track session at Willows Springs’ Street circuit to get Track Mode performing as it should. The result was a 1:21:49 lap time, beating the recently tested Alfa Romeo Giulia Quadrifoglio and matching the 2016 Porsche Cayman GT4.


Source: TechCrunch

Facebook launches Lasso, its music and video TikTok clone

Done cloning Snapchat, Facebook is now chasing Chinese short-form video sensation TikTok with the launch of its knock-off Lasso. Available now for iOS and Android, Lasso is Facebook’s answer to the zany mobile lipsyncing playground that’s gained ground with young users, both in China and in the West.

The release confirms TechCrunch’s scoop from last month that the company was building an app called Lasso to let people share short videos with soundtracks. With TikTok looking like the next big thing, it’s not surprising to see Facebook playing chase, much like it did, successfully, when Snapchat posed an existential threat.

A Facebook spokesperson confirmed that the launch of Lasso on iOS and Android is in the U.S. only for now, telling us “Lasso is a new standalone app for short-form, entertaining videos — from comedy to beauty to fitness and more. We’re excited about the potential here, and we’ll be gathering feedback from people and creators.” While Lasso was released under the Facebook umbrella, the company launched it informally and with relatively little fanfare via a tweet from a product manager on the team.

Lasso lets you shoot up to 15-second long videos (no uploads allowed) and overlay popular songs. The app centers around an algorithmic feed of recommended videos, but also lets you tap through hashtags or a Browse page of themed collections.

Lasso, Facebook's TikTok clone

Lasso app

The original slate of videos seeded by Lasso’s beta users look pretty good, making use of the millions of songs in its soundtrack catalog. There are no augmented reality effects or crazy filters like you’ll find in TikTok, but users are already taking advantage of the slo-mo and fast-forward recording features to make fun clips. Overall the app feels well constructed, and has that colorful and playful teen vibe.

Surprisingly, Facebook is releasing Lasso under its own name rather than trying to obscure the connection to its social network that younger users have largely abandoned. You can log in with Facebook or Instagram to get instant personalization, with the option to syndicate your Lassos to Facebook Stories with that option for Instagram is coming soon. Notably, all content and profiles on Lasso are public, which could cause some concern about older users leering at dancing teens.

Musical.ly had its own big problems with inappropriate underage content. Its leaderboard of top videos often included scantly clad pre-teens dancing to racy pop songs, seemingly flaunting the U.S. COPPA child protection laws. Lasso includes a report button, but it’s unclear where Facebook will draw the line on what’s allowed.

The big question is whether Lasso is too late. Musical.ly rose to over 200 million registered users before being acquired by Chinese tech giant ByteDance and rolled into its similar app TikTok. That app has been on an epic rise over the past few months, turning into a global phenomenon that surpassed Facebook, Instagram, Snapchat, and YouTube in downloads during October.

While Instagram and Facebook were massively successful at cloning Snapchat’s Stories, they had the advantage of building the feature into their already-popular apps. Lasso will have to start from scratch as a standalone app, and Facebook’s previous teen-focused standalones like Slingshot and Poke failed spectacularly with the same strategy. Facebook will have to hope its initial cadre of content creators will prove so compelling as to convince people to download a whole new app, which could be an uphill battle — even for Facebook.


Source: TechCrunch

Your new PC may have shipped with an unsupported version of Windows 10

If you bought or are looking to buy a new Windows laptop or tablet this holiday season, be aware that it could have shipped with an unsupported operating system. The issue is caused by Microsoft pulling its October 2018 Update.

The post Your new PC may have shipped with an unsupported version of Windows 10 appeared first on Digital Trends.


Source: Digital trends

Listen to the music of a Martian sunrise

Two researchers, Dr. Domenico Vicinanza of Anglia Ruskin University and Dr. Genevieve Williams, have “sonified” a video of the 5,000th Martian sunrise captured by the Mars rover, Opportunity. The music is a representation of the experience of seeing the sun rise over the red dunes as light pierces the planet’s atmosphere.

It’s beautiful.

From the release:

Researchers created the piece of music by scanning a picture from left to right, pixel by pixel, and looking at brightness and colour information and combining them with terrain elevation. They used algorithms to assign each element a specific pitch and melody.

The quiet, slow harmonies are a consequence of the dark background and the brighter, higher pitched sounds towards the middle of the piece are created by the sonification of the bright sun disk.

Given that you are literally watching the sun rise over the sands of Mars thanks to the efforts of a little multi-wheeled robot and you can now hear the musical equivalent of this amazing breakthrough, it’s pretty hard to feel that humanity is heading toward a dark place. The next breakthrough, I suspect, will happen when we’re able to send human orchestra up there to recreate it with real instruments.


Source: TechCrunch

How 'IRL Iron Man' Richard Browning Designed His Jetpack Racing Suit

The British thrill-seeked endured more than a few crashes—and broke some concrete—on the way to designing the jetpack suit he’s now using to launch a racing league.
Source: Wired

Rocket Lab’s big ‘It’s Business Time’ launch targets this weekend for takeoff

Upstart launch provider Rocket Lab aims to finally launch its first fully commercial payload to orbit this weekend after months of delays. The small Electron rocket will take six satellites from four companies to orbit as early as tomorrow evening Pacific time — Sunday afternoon at the company’s launch site in New Zealand.

“It’s Business Time,” as this launch is called, in honor of being the first to carry a full load of paying customers, was originally scheduled for this last spring, but small technical glitches have repeatedly delayed operations. Things are looking good for the 11th, though, and the window lasts until the 19th in case there’s inclement weather.

The rocket will be carrying two satellites for Spire’s earth-monitoring constellation, two for Fleet’s space-based smart devices grid, one for GeoOptics, and one for the city of Irvine’s CubeSat STEM program.

This last item is of particular interest; the satellite was built by high school students from the Irvine area. Can’t say I ever had a school project quite that cool. The smallsat will be sending various measurements and observations back to the students from low earth orbit.

Not only that, but IRVINE01 is also the first satellite that will have Accion Systems’ electrospray thrust modules, tiny modular things that are highly efficient and perfect for small craft. I’ve had the pleasure of talking to Accion founder (and designer of the thruster) Natalya Bailey and I’m sure she’s excited to see her creation taking flight.

It’s a big first for lots of people and a successful launch would help propel Rocket Lab towards its goal of super-frequent small payload deliveries like this one.

Keep an eye on Rocket Lab’s Twitter account for updates such as an adjusted launch time. I’ll update this post when the live stream is up!


Source: TechCrunch

Gadget Lab Podcast: Darren Aronofsky on Spheres and VR

The director of Mother! and Black Swan talks about the new VR series, Spheres, which he produced.
Source: Wired

Hackers stole income, immigration and tax data in Healthcare.gov breach, government confirms

Hackers siphoned off thousands of Healthcare.gov applications by breaking into the accounts of brokers and agents tasked with helping customers sign up for healthcare plans.

The Centers for Medicare and Medicaid Services (CMS) said in a post buried on its website that found that the hackers obtained “inappropriate access” to a number of broker and agent accounts, which “engaged in excessive searching” of the government’s healthcare marketplace systems.

CMS didn’t say how the attackers gained access to the accounts, but said it shut off the affected accounts “immediately.”

In a letter sent to affected customers this week (and buried on the Healthcare.gov website), CMS disclosed that sensitive personal data — including partial Social Security numbers, immigration status and some tax information — may have been taken.

According to the letter, the data included:

  • Name, date of birth, address, sex, and the last four digits of the Social Security number (SSN), if SSN was provided on the application;
  • Other information provided on the application, including expected income, tax filing status, family relationships, whether the applicant is a citizen or an immigrant, immigration document types and numbers, employer name, whether the applicant was pregnant, and whether the applicant already had health insurance;
  • Information provided by other federal agencies and data sources to confirm the information provided on the application, and whether the Marketplace asked the applicant for documents or explanations;
  • The results of the application, including whether the applicant was eligible to enroll in a qualified health plan (QHP), and if eligible, the tax credit amount; and
  • If the applicant enrolled, the name of the insurance plan, the premium, and dates of coverage.

But the government said that no bank account information — including credit card numbers, or diagnostic and treatment information was taken.

“Breaches that include personally identifiable information are always dangerous because they can lead to identity theft,” Andrew Blaich, Head of Device Intelligence at Lookout. “Not only can the attacker steal the identity of anyone in the breach, but they can also use this information to appear credible when crafting mobile spear-phishing messages against their targets.”

“This is especially true if the data that was leaked is accurate, as health information, family relationships and insurance information can make it extremely easy for an attacker to steal the identity of anyone affected by the breach,” he said.

President Obama’s healthcare law, the Affordable Care Act — known as “Obamacare” — allows Americans to obtain health insurance if they are not already covered. In order to sign up for healthcare plans, customers have to submit sensitive data. Some 11.8 million people signed up for coverage for 2018.

CMS previously said that the breach affected 75,000 individuals, but a person familiar with the investigation said that the number is expected to change. The stolen files also included data on children.

A spokesperson said CMS is expected to give an update early next week at the latest.

Healthcare.gov’s enrollment period is set to close on December 15.


Source: TechCrunch

How to take a screenshot on the new iPad Pro – CNET

No home button? No problem.
Source: CNET

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