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Study finds strong link between childhood opportunities and educational attainment, earnings as a young adult

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Study finds strong link between childhood opportunities and educational attainment, earnings as a young adult


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Credit: Pixabay/CC0 Public Domain

The number of educational opportunities that children accrue at home, in early education and care, at school, in afterschool programs, and in their communities as they grow up are strongly linked to their educational attainment and earnings in early adulthood, according to new research. The results indicate that the large opportunity gaps between low- and high-income households from birth through the end of high school largely explain differences in educational and income achievement between students from different backgrounds.

These findings come from a 26-year longitudinal study published in the Educational Researcher journal. The research was conducted by Eric Dearing (Boston College), Andres S. Bustamante (University of California–Irvine), Henrik D. Zachrisson (University of Oslo), and Deborah Lowe Vandell (University of California–Irvine).

Their study is the first to directly document opportunities and opportunity gaps as they accrue across early childhood, middle childhood, and adolescence in multiple key areas of child development.

Using a 12-point index of opportunities, the authors found that about two thirds of children from low-income households experience no more than one opportunity between birth and high school. Most high-income youth experience six or more opportunities.

The strength of the relationship between opportunities and early adult outcomes was strongest for low-income children. Moving from zero to four opportunities increased the odds of low-income children graduating from a four-year college from about 10% to 50% and increased annual salaries by about $10,000 per year.






“For the first time, we are able to directly measure how large opportunity gaps are and how seriously they impact outcomes of low- and high-income students,” said study co-author Eric Dearing, a professor at Boston College and executive director of the Mary E. Walsh Center for Thriving Children. “These gaps are very large and appear to be a primary explanation for large gaps in attainment for children born into low- versus high-income households.”

The authors found that the opportunity gap was a more powerful predictor of educational attainment than early childhood poverty.

The study was part of the National Institutes of Health’s NICHD Study of Early Child Care and Youth Development, in which 814 children from low-, middle-, and high-income families were followed from birth through age 26 with frequent gold standard measurements of their developmental contexts and experiences from early childhood through adolescence, between 1991 and 2017.

For educational institutions and their leaders, Dearing stressed that educational initiatives that tackle children’s lives inside and outside of the classroom offer uniquely powerful chances to narrow cumulative opportunity gaps.

“Beyond what schools are able to do, narrowing gaps in attainment will likely require comprehensive public policies that offer systemic changes to the children’s chances of educational opportunities,” Dearing said.

More information:
Dearing, E. et al. Accumulation of Opportunities Predicts the Educational Attainment and Adulthood Earnings of Children Born into Low- Versus Higher-Income Households, Educational Researcher (2024). DOI: 10.3102/0013189X241283456

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American Educational Research Association

Citation:
Study finds strong link between childhood opportunities and educational attainment, earnings as a young adult (2024, September 26)
retrieved 26 September 2024
from https://phys.org/news/2024-09-strong-link-childhood-opportunities-young.html

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part may be reproduced without the written permission. The content is provided for information purposes only.





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Team debunks research showing Facebook’s news-feed algorithm curbs election misinformation

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Team debunks research showing Facebook’s news-feed algorithm curbs election misinformation


Team led by UMass Amherst debunks research showing Facebook's news-feed algorithm curbs election misinformation
(a) Average weekly number of views of news from trustworthy and untrustworthy sources, calculated using the Facebook URLs dataset (Messing et al., 2020). Our estimates of untrustworthy news are based on links to sources rated mixed, low, or very low for factual reporting by Media Bias/Fact Check (MBFC) and shared at least 100 times, whereas Guess et al. consider any post by users with two or more reports as untrustworthy. (b) Fraction of views of untrustworthy news among all views. The horizontal dotted lines are averages of the points of the same color. We observe a drop during a period overlapping with the experiment, likely due to the changes in the news feed algorithm. Credit: Chhandak et al.

An interdisciplinary team of researchers led by the University of Massachusetts Amherst have published work in the journal Science calling into question the conclusions of a widely reported study—published in Science in 2023—finding the social platform’s algorithms successfully filtered out untrustworthy news surrounding the 2020 election and were not major drivers of misinformation.

The UMass Amherst-led team’s work shows that the research was conducted during a short period when Meta temporarily introduced a new, more rigorous news algorithm rather than its standard one, and that the previous researchers did not account for the algorithmic change. This helped to create the misperception, widely reported by the media, that Facebook and Instagram’s news feeds are largely reliable sources of trustworthy news.

“The first thing that rang alarm bells for us” says lead author Chhandak Bagchi, a graduate student in the Manning College of Information and Computer Science at UMass Amherst, “was when we realized that the previous researchers,” Guess and colleagues, “conducted a randomized control experiment during the same time that Facebook had made a systemic, short-term change to their news algorithm.”

Beginning around the start of November 2020, Meta introduced 63 “break glass” changes to Facebook’s news feed which were expressly designed to diminish the visibility of untrustworthy news surrounding the 2020 U.S. presidential election. These changes were successful.

“We applaud Facebook for implementing the more stringent news feed algorithm,” says Przemek Grabowicz, the paper’s senior author, who recently joined University College Dublin but conducted this research at UMass Amherst’s Manning College of Information and Computer Science.

Chhandak, Grabowicz and their co-authors point out that the newer algorithm cut user views of misinformation by at least 24%. However, the changes were temporary, and the news algorithm reverted to its previous practice of promoting a higher fraction of untrustworthy news in March 2021.

Guess’ study ran from September 24 through December 23, and so substantially overlapped with the short window when Facebook’s news was determined by the more stringent algorithm—but the paper did not clarify that their data captured an exceptional moment for the social media platform.

“Their paper gives the impression that the standard Facebook algorithm is good at stopping misinformation,” says Grabowicz, “which is questionable.”

Part of the problem, as Chhandak, Grabowicz, and their co-authors write, is that experiments, such as the one run by Guess and team, have to be “preregistered”—which means that Meta could have known well ahead of time what the researchers would be looking for. And yet, social media are not required to make any public notification of significant changes to their algorithms.

“This can lead to situations where social media companies could conceivably change their algorithms to improve their public image if they know they are being studied,” write the authors.

Though Meta funded and supplied 12 co-authors for Guess’ study, they write that “Meta did not have the right to prepublication approval.”

“Our results show that social media companies can mitigate the spread of misinformation by modifying their algorithms but may not have financial incentives to do so,” says Paik. “A key question is whether the harms of misinformation—to individuals, the public and democracy—should be more central in their business decisions.”

More information:
H. Holden Thorp, Context matters in social media, Science (2024). DOI: 10.1126/science.adt2983. www.science.org/doi/10.1126/science.adt2983

Citation:
Team debunks research showing Facebook’s news-feed algorithm curbs election misinformation (2024, September 26)
retrieved 26 September 2024
from https://phys.org/news/2024-09-team-debunks-facebook-news-algorithm.html

This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no
part may be reproduced without the written permission. The content is provided for information purposes only.





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Scientists uncover a critical component that helps killifish regenerate their fins

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Scientists uncover a critical component that helps killifish regenerate their fins


Stowers scientists uncover a critical component that helps killifish regenerate their fins
Shortly after a killifish tail injury, the remaining tissue needs to know how much damage has occurred. Then, this tissue must enlist the right number of repair cells to the site of injury for the right amount of time. Damage sensing, repair cell recruitment, and timing somehow must work together to regrow the tail. Credit: Stowers Institute for Medical Research

Spontaneous injuries like the loss of a limb or damage to the spinal cord are impossible for humans to repair. Yet, some animals have an extraordinary capacity to regenerate after injury, a response that requires a precise sequence of cellular events. Now, new research from the Stowers Institute for Medical Research has unveiled a critical timing factor—specifically how long cells actively respond to injury—involved in regulating regeneration.

A recent study published in iScience on September 20, 2024, sought to understand exactly how an organism knows how much tissue has been lost post-injury. Led by former Predoctoral Researcher Augusto Ortega Granillo, Ph.D., in the lab of Stowers President and Chief Scientific Officer Alejandro Sánchez Alvarado, Ph.D., the team investigated how African killifish properly regrow their tail fin following damage.

By analyzing tissue dynamics during regrowth, they found that in addition to known factors, including how many cells are participating and where they are located, the length of time cells spend engaged in the repair process is also key.

“One of the greatest unsolved mysteries of regeneration is how an organism knows what has been lost after injury,” said Sánchez Alvarado. “Essentially, the study points to a new variable in the equation of regeneration. If we can modulate the rate and the length of time that a tissue can launch a regenerative response, this could help us devise therapies that may activate and perhaps prolong the regenerative response of tissues that normally would not do so.”

Shortly after a killifish tail injury, the remaining tissue needs to know how much damage has occurred. Then, this tissue must enlist the right number of repair cells to the site of injury for the right amount of time. Damage sensing, repair cell recruitment, and timing somehow must work together to regrow the tail.

“If an animal that can regenerate extremities, like a tail, loses just a tiny portion, how does it know not to regenerate a whole new tail but just the missing piece?” said Sánchez Alvarado. To address this question, the team probed different locations of injury in the killifish tail fin.

They found that skin cells both near an injury and in distant, uninjured regions launch a genetic program that primes the whole animal to prepare for a repair response. Then, skin cells at the site of injury sustain this response and temporarily change their state to modify the surrounding material called the extracellular matrix.

Ortega Granillo likens this matrix to a sponge that absorbs secreted signals from the injured tissue that then guides repair cells to get to work. If the signals are not received or not interpreted correctly, the regeneration process may not restore the tail’s original shape and size.

“We very clearly defined when and where—at 24 hours post-injury and in the extracellular matrix—the transient cell state is acting in the fin tissue,” said Ortega Granillo. “Knowing when and where to look allowed us to make genetic disruptions and gain a better understanding of the function of these cell states during regeneration.”

To investigate whether these distinct cellular states communicate information to the extracellular matrix—the supportive structure surrounding cells—during the repair process, the researchers employed the CRISPR-Cas9 gene editing technique. They specifically targeted a gene known to modify the extracellular matrix, as they had observed its activation at the onset of the regeneration response.

By disrupting the function of this gene, the team aimed to determine its role in relaying information from cells to the matrix during regeneration.

“These modified animals no longer know how much tissue was lost,” said Ortega Granillo. “They still regenerated, but the speed of tissue growth was deficient. This is telling us that by changing the extracellular space, skin cells inform the tissue how much was lost and how fast it should grow.”

Indeed, the speed and amount of tissue regenerated in these genetically modified killifish increased regardless of whether the tail injury was mild or severe. This finding opens the possibility that cell states that modify the matrix increase regenerative regrowth. If the cell states could be adjusted, it may be a way to stimulate a more robust regeneration response.

From an evolutionary perspective, understanding why certain organisms excel at regeneration while others, such as humans, have limited regenerative abilities is a driving force in the field of regenerative biology. By identifying general principles in organisms with high regenerative capacity, researchers aim to potentially apply these insights to enhance regeneration in humans.

This comparative approach not only sheds light on the evolutionary aspects of regeneration but also holds promise for developing novel therapeutic strategies in regenerative medicine.

“Our goal is to understand how to shape and grow tissues,” said Ortega Granillo. “For people who sustain injuries or organ failure, regenerative therapies could restore function that was compromised during illness or following injury.”

Additional authors include Daniel Zamora, Robert Schnittker, Allison Scott, Alessia Spluga, Jonathon Russell, Carolyn Brewster, Eric Ross, Daniel Acheampong, Ning Zhang, Ph.D., Kevin Ferro, Ph.D., Jason Morrison, Boris Rubinstein, Ph.D., Anoja Perera, and Wei Wang, Ph.D.

More information:
Augusto Ortega Granillo et al, Positional information modulates transient regeneration-activated cell states during vertebrate appendage regeneration, iScience (2024). DOI: 10.1016/j.isci.2024.110737

Citation:
Scientists uncover a critical component that helps killifish regenerate their fins (2024, September 26)
retrieved 26 September 2024
from https://phys.org/news/2024-09-scientists-uncover-critical-component-killifish.html

This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no
part may be reproduced without the written permission. The content is provided for information purposes only.





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OpenAI looks to shift away from nonprofit roots and convert itself to for-profit company

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OpenAI looks to shift away from nonprofit roots and convert itself to for-profit company


OpenAI looks to shift away from nonprofit roots and convert itself to for-profit company
Open AI Chief Executive Officer Sam Altman (C) speaks at the Advancing Sustainable Development through Safe, Secure, and Trustworthy AI event on Sept. 23, 2024, in New York. Credit: Bryan R. Smith/Pool Photo via AP

OpenAI’s history as a nonprofit research institute that also sells commercial products like ChatGPT may be coming to an end as the San Francisco company looks to more fully convert itself into a for-profit corporation accountable to shareholders.

The company’s board is considering a decision that would change the company into a public benefit corporation, according to a source familiar with the discussions who wasn’t authorized to speak publicly about them.

While OpenAI already has a for-profit division, where most of its staff works, it is controlled by a nonprofit board of directors whose mission is to help humanity. That would change if the company converts the core of its structure to a public benefit corporation, which is a type of corporate entity that is supposed to help society as well as turn a profit.

No final decision has been made by the board and the timing of the shift hasn’t been determined, the source said.

OpenAI’s CEO Sam Altman acknowledged in public remarks Thursday that the company is thinking about restructuring but said the departures of key executives the day before weren’t related.

Speaking at a tech conference in Italy, Sam Altman mentioned that OpenAI has been considering an overhaul to get to the “next stage.” But he said it was not connected to the Wednesday resignations of Chief Technology Officer Mira Murati and two other top leaders.

“OpenAI will be stronger for it as we are for all of our transitions,” Altman told the Italian Tech Week event in Turin. “I saw some stuff that this was, like, related to a restructure. That’s totally not true. Most of the stuff I saw was also just totally wrong,” he said without any more specificity.

“But we have been thinking about (a restructuring),” he added. OpenAI’s board has been considering a revamp for a year as it tries to figure out what’s needed to “get to our next stage.”

OpenAI looks to shift away from nonprofit roots and convert itself to for-profit company
Sam Altman, right, CEO of ChatGPT maker OpenAI, and Mira Murati, chief technology officer, appear at OpenAI DevDay, OpenAI’s first developer conference, on Nov. 6, 2023 in San Francisco. Credit: AP Photo/Barbara Ortutay, File

OpenAI said Thursday that it will still retain a nonprofit arm.

“We remain focused on building AI that benefits everyone and as we’ve previously shared we’re working with our board to ensure that we’re best positioned to succeed in our mission,” it said in a written statement. “The nonprofit is core to our mission and will continue to exist.”

The resignations of Murati, Chief Research Officer Bob McGrew and another research leader, Barret Zoph, were “just about people being ready for new chapters of their lives and a new generation of leadership,” Altman said.

The exits were the latest in a string of recent high-profile departures that also include the resignations of OpenAI co-founder Ilya Sutskever and safety team leader Jan Leike in May. In a statement, Leike had leveled criticism at OpenAI for letting safety “take a backseat to shiny products.”

Much of the conflict at OpenAI has been rooted in its unusual governance structure. Founded in 2015 as a nonprofit with a mission to safely build futuristic AI to help humanity, it is now a fast-growing big business still controlled by a nonprofit board bound to its original mission.

This unique structure made it possible for four OpenAI board members—Sutskever, two outside tech entrepreneurs and an academic—to briefly oust Altman last November in what was later described as a dispute over a “significant breakdown in trust” between the board and top executives. But with help from a powerful backer, Microsoft, Altman was brought back to the CEO role days later and a new board replaced the old one. OpenAI also put Altman back on the board of directors in May.

© 2024 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed without permission.

Citation:
OpenAI looks to shift away from nonprofit roots and convert itself to for-profit company (2024, September 26)
retrieved 26 September 2024
from https://techxplore.com/news/2024-09-openai-shift-nonprofit-roots-profit.html

This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no
part may be reproduced without the written permission. The content is provided for information purposes only.





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Balloon mission tests quantum sensor technology

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Balloon mission tests quantum sensor technology


Balloon mission tests quantum sensor technology
WashU physicists are using the DR-TES mission to test quantum X-ray and gamma-ray detectors in a space-like environment. Credit: NASA’s Wallops Flight Facility

A WashU team launched the Dilution Refrigerator Transition Edge Sensor (DR-TES) mission on Sept. 24 from NASA’s scientific balloon facility in Fort Sumner, N.M. The mission is testing a sophisticated cooling system and a novel gamma-ray detector array in near-space conditions.

Henric Krawczynski, the Wilfred R. and Ann Lee Konneker Distinguished Professor in Physics in Arts & Sciences, leads the DR-TES mission. DR-TES is a collaborative effort of WashU, the National Institute of Standards and Technology, the University of Colorado Boulder and the University of New Hampshire.

The mini-dilution refrigerator on DR-TES was designed to cool detectors to temperatures of 80 millikelvin, enabling the high-precision measurements required for cutting-edge X-ray and gamma-ray detection.






A WashU-led team successfully launched the DR-TES mission from NASA’s balloon launch facility Sept. 24 in New Mexico. Physicists in Arts & Sciences are using this mission to test quantum X-ray and gamma-ray detectors in a space-like environment. Credit: WashU Department of Physics

DR-TES reached a float altitude of about 131,000 feet and flew for a total of 9 hours and 52 minutes, according to NASA. The balloon and payload are safely on the ground and recovery efforts are underway. Krawczysnki described the flight as a “successful technology demonstration.”

WashU scientists on the DR-TES team are working to advance quantum sensor technology as part of the Center for Quantum Leaps, a signature initiative of the Arts & Sciences strategic plan.

Citation:
Balloon mission tests quantum sensor technology (2024, September 26)
retrieved 26 September 2024
from https://phys.org/news/2024-09-balloon-mission-quantum-sensor-technology.html

This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no
part may be reproduced without the written permission. The content is provided for information purposes only.





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