Wednesday, February 05, 2025

 

New book takes in-depth look at first ladies, how the position has evolved



Beyond biography, "The Cambridge Companion to US First Ladies" takes thematic look at the role, how its holders were portrayed in their time, non-wives who have served and more




University of Kansas




LAWRENCE — Volumes have been written about Jacqueline Kennedy Onassis. And if one wanted to read more about first ladies like Dolley Madison or Nancy Reagan, plenty of biographies are on the market. But a new book about first ladies co-edited by a University of Kansas journalism history researcher takes a more holistic, in-depth look at the position of first lady: the women — not just wives — who have held the office, how they performed their duties, how people perceived them in their time and how the role has evolved.

“The Cambridge Companion to US First Ladies,” edited by Lisa Burns of Quinnipiac University and Teri Finneman, associate professor of journalism & mass communications at KU, collects more than a dozen thematic essays exploring a range of topics regarding a role that has been both obsessed over and seen its holders forgotten.

Burns wrote the book’s introduction detailing why first ladies matter, and Finneman contributed a chapter on first ladies’ performances following a presidential death.

“We’re in a rare group of people who study how first ladies are portrayed by the media,” Finneman said of her co-editor. “Very few works look at the first lady institution and how it has evolved over time. Most discussions focus only on their time in the White House and very little on their lives before or after. We take a look at their lives, legacies and what these women meant and continue to mean for the country.”

Chapters in the book examine first ladies as political assets and liabilities, their performance in wartime, their role in international diplomacy, ties to slavery and civil rights, social advocacy, their roles in women’s suffrage, gender norms’ effects on first ladies’ speeches and even their portrayal in film.

Other chapters point out often overlooked or unknown details about the role, such as when someone other than a president’s wife was a stand-in for the role.

“People in current times tend to think of the first lady as being a female spouse,” Finneman said. “Historically, there have been a number of times when the position wasn’t held by a spouse. There were cases where the wife died, like in Thomas Jefferson’s time. James Buchanan never married. There were times when sisters, nieces or others served in these roles. These women were often very popular, and they’ve been erased.”

Regardless of their era or relationship to the president, “The Cambridge Companion” analyzes those who have held the role through a wide variety of lenses. First lady studies is a relatively new field, taking form in the 1980s, and the book brings together authors who analyze the position through the perspectives of history, journalism, government, communications studies, theater, rhetoric and communications studies.

“To put it in today’s terms, these women could be called the original influencers. People were obsessed with Frances Cleveland. She was Jackie Kennedy before Jackie Kennedy,” Finneman said. “This is a look at how these women were perceived at the time and is also a long-term look at how people think about women throughout American history. We cover gender roles, social advocacy, celebrity, fashion and popular culture. We really have a diverse list of topics.”

For her part, Finneman contributes a chapter on “mourners in chief,” or how first ladies have performed after presidential deaths. The most recent and perhaps most famous case is Jacqueline Kennedy’s performance following John F. Kennedy’s assassination. Eight first ladies have seen their husband die in office, and the chapter examines both how they performed and how media of the time portrayed their roles. Mary Lincoln effectively stayed in seclusion following Abraham Lincoln’s assassination, and Lucretia Garfield essentially created the template for Kennedy with her poise and involvement after her husband’s death. Following his shooting, James Garfield lingered for more than two months, and newspapers praised the first lady as a “national symbol of strength and family devotion.” The press publicized what could be considered a 19th century GoFundMe campaign, soliciting donations to ensure the first lady and family would be financially cared for following the president's death.

The book also has a companion podcast exploring its topics. “The First Ladies,” a 14-part podcast hosted by Finneman examining the themes presented in the book, is available on Apple Podcasts and Spotify as well as this website.

While history is still being written, “The Cambridge Companion to US First Ladies” provides a fresh look at those who have held the role, how they performed, how they changed the office for the future and what they have meant to the United States.

“This pioneering thematic volume offers an outstanding and highly useful addition to the growing field of first lady scholarship. Featuring riveting, well-researched chapters on first ladies’ close connections with slavery and civil rights, involvement in war and diplomacy, portrayals in film and fashion, as well as activism in social movements — not to mention their legacies on any number of fronts — the work underlines the contributions of these women in a framework which contextualizes them while offering the best kind of comparative history,” said Katherine Sibley of Saint Joseph’s University. “Complemented by its podcasts, this treatment makes an illuminating contribution to our understand of US first ladies.”

 

Cretaceous fossil from Antarctica reveals earliest modern bird



New clues delve into the age-old question: Does a duck always look like a duck and quack like a duck?



Peer-Reviewed Publication

Ohio University

Vegavis Landscape © Witton 2025.jpg 

image: 

The Late Cretaceous modern (crown) bird,Vegavis iaai, pursuit diving for fish in the shallow ocean off the coast of the Antarctic peninsula, with ammonites and plesiosaurs forcompany.

view more 

Credit: Mark Witton, 2025.




Sixty-six million years ago, at the end of the Cretaceous Period, an asteroid impact near the Yucatán Peninsula of Mexico triggered the extinction of all known non-bird dinosaurs. But for the early ancestors of today’s waterfowl, surviving that mass extinction event was like…water off a duck’s back. Location matters, as Antarctica may have served as a refuge, protected by its distance from the turmoil taking place elsewhere on the planet. Fossil evidence suggests a temperate climate with lush vegetation, possibly serving as an incubator for the earliest members of the group that now includes ducks and geese.

A paper published today in the journal Nature describes an important new fossil of the oldest known modern bird, an early relative of ducks and geese that lived in Antarctica at around the same time Tyrannosaurus rex dominated North America. The study was led by Dr. Christopher Torres, a National Science Foundation (NSF) Postdoctoral Fellow at Ohio University’s Heritage College of Osteopathic Medicine.

The fossil, a nearly complete, 69-million-year-old skull, belongs to an extinct bird named Vegavis iaai, and was collected during a 2011 expedition by the Antarctic Peninsula Paleontology Project. The new skull exhibits a long, pointed beak and a brain shape unique among all known birds previously discovered from the Mesozoic Era, when non-avian dinosaurs and a bizarre collection of early birds ruled the globe. Instead, these features place Vegavis in the group that includes all modern birds, representing the earliest evidence of a now widespread and successful evolutionary radiation across the planet.

“Few birds are as likely to start as many arguments among paleontologists as Vegavis,” says lead author Dr. Torres, now a professor at University of the Pacific. “This new fossil is going to help resolve a lot of those arguments. Chief among them: where is Vegavis perched in the bird tree of life?”

Vegavis was first reported 20 years ago by study co-author Dr. Julia Clarke of The University of Texas at Austin and several colleagues. At that time, it was proposed as an early member of modern (also known as crown) birds that was evolutionarily nested within waterfowl. But modern birds are exceptionally rare before the end-Cretaceous extinction, and more recent studies have cast doubt on the evolutionary position of Vegavis. The new specimen described in this study has something that all previous fossils of this bird have lacked: a nearly complete skull.

This new skull helps lay that skepticism to rest, preserving several traits like the shape of the brain and beak bones that are consistent with modern birds, specifically waterfowl. Unlike most waterfowl today, the skull preserves traces of powerful jaw muscles useful for overcoming water resistance while diving to snap up fish.

These skull features are consistent with clues from elsewhere in the skeleton, suggesting that Vegavis used its feet for underwater propulsion during pursuit of fish and other prey – a feeding strategy unlike that of modern waterfowl and more like that of some other birds such as grebes and loons.

“This fossil underscores that Antarctica has much to tell us about the earliest stages of modern bird evolution,” says Dr. Patrick O’Connor, co-author on the study, professor at Ohio University, and director of Earth and Space Sciences at Denver Museum of Nature & Science.

Birds known from elsewhere on the planet at around the same time are barely recognizable by modern bird standards. Moreover, most of the handful of sites that even preserve delicate bird fossils yield specimens that are so incomplete as to only give hints to their identity, as was the situation with Vegavis until now.

“And those few places with any substantial fossil record of Late Cretaceous birds, like Madagascar and Argentina, reveal an aviary of bizarre, now-extinct species with teeth and long bony tails, only distantly related to modern birds. Something very different seems to have been happening in the far reaches of the Southern Hemisphere, specifically in Antarctica,” noted Dr. O’Connor.

How the Antarctic landmass helped shape modern ecosystems in deep time is a topic of active research by scientists from around the world. Indeed, according to study co-author Dr. Matthew Lamanna of Carnegie Museum of Natural History, “Antarctica is in many ways the final frontier for humanity’s understanding of life during the Age of Dinosaurs.”

Dr. Torres was supported at Ohio University for three years by the NSF Postdoctoral Fellowship Program, working on a project examining the relationship between bird diversification and resilience to extinction through the combined lenses of ecology, brain anatomy, and other life history traits. He is now in his first year as an Assistant Professor in the Department of Biological Sciences at University of the Pacific in Stockton, California.

"This discovery exemplifies the power of scientific research and the crucial role our institution plays in advancing knowledge about Earth's deep history,” Ohio University President Lori Stewart Gonzalez said. “This research not only enhances our understanding of early bird evolution but also highlights the invaluable contributions of OHIO graduate students and postdoctoral researchers who are at the forefront of these expeditions. It is through these global, expeditionary efforts—whether in the field or in the lab—that we can truly grasp the dynamic changes our planet has undergone over millions of years. This study is a prime example of real-world experiential learning that connects STEM education with hands-on, transformative research, preparing the next generation of scientists to tackle the challenges of the future."

“Large-scale projects like this one, involving students and postdoctoral researchers, prepare the scientists of tomorrow to collaborate, advance science, and tackle the biggest questions facing our planet,” added Dr. O’Connor.

Other co-authors of the study include Joseph Groenke (Ohio University), Ross MacPhee (American Museum of Natural History), Grace Musser (The University of Texas at Austin and Smithsonian National Museum of Natural History), and Eric Roberts (Colorado School of Mines). This work was funded by the NSF grants DBI-2010996 to Torres, NSF ANT-1142104 to O’Connor, NSF ANT-1141820 to Clarke, NSF ANT-1142129 to Lamanna, and NSF ANT-0636639 and NSF ANT-1142052 to MacPhee.

Artistic renderings of Vegavis iaai and other supporting media can be found here.

Digital reconstruction of the Late Cretaceous (~69 million years old) crown bird Vegavis iaai that was completed following high-resolution micro-computed tomography of a fossil-bearing concretion discovered on Vega Island, Antarctic Peninsula.

Credit

Joseph Groenke (Ohio University) and Christopher Torres (University of the Pacific), 2025

Christopher Torres, former NSF Postdoctoral Research Fellow at Ohio University and lead author of the paper describing a new skull of the 69-million-year-old bird, Vegavis iaai, that once inhabited the shallow oceans off the coast of present-day Antarctica.

Credit

Ben Siegel (Ohio University), 2021.


AMERIKA

Firearm type and number of people killed in publicly targeted fatal mass shooting events



JAMA Network Open





About The Study: 

This study found that most publicly targeted fatal mass shootings involved multiple types of firearms and handguns were the most common type of firearm present. Assault weapons being present during a publicly targeted mass shooting was associated with a slight increase in the number of injuries and deaths occurring during that incident. 


Corresponding Author: To contact the corresponding author, Leslie M. Barnard, MPH, DrPH, email leslie.barnard@ucdenver.edu.

To access the embargoed study: Visit our For The Media website at this link https://media.jamanetwork.com/

(doi:10.1001/jamanetworkopen.2024.58085)

Editor’s Note: Please see the article for additional information, including other authors, author contributions and affiliations, conflict of interest and financial disclosures, and funding and support.

#  #  #

Embed this link to provide your readers free access to the full-text article This link will be live at the embargo time 

http://jamanetwork.com/journals/jamanetworkopen/fullarticle/10.1001/jamanetworkopen.2024.58085?utm_source=For_The_Media&utm_medium=referral&utm_campaign=ftm_links&utm_term=020525

About JAMA Network Open: JAMA Network Open is an online-only open access general medical journal from the JAMA Network. On weekdays, the journal publishes peer-reviewed clinical research and commentary in more than 40 medical and health subject areas. Every article is free online from the day of publication. 

 

Recent drug overdose mortality decline compared with pre–COVID-19 trend



JAMA Network Open





About The Study: 

Drug overdose deaths have increased exponentially since 1979. This rate of increase accelerated during the COVID-19 pandemic but has since waned. When comparing recent drug-related mortality rates with their pre-2020 trajectory, the vast majority of states remained higher than expected. In the 4 years between 2020 and 2023, nearly all states had higher drug-related mortality rates than their 2019 rates.



Corresponding Author: To contact the corresponding author, Keith Humphreys, PhD, email knh@stanford.edu.

To access the embargoed study: Visit our For The Media website at this link https://media.jamanetwork.com/

(doi:10.1001/jamanetworkopen.2024.58090)

Editor’s Note: Please see the article for additional information, including other authors, author contributions and affiliations, conflict of interest and financial disclosures, and funding and support.

#  #  #

Embed this link to provide your readers free access to the full-text article This link will be live at the embargo time 

http://jamanetwork.com/journals/jamanetworkopen/fullarticle/10.1001/jamanetworkopen.2024.58090?utm_source=For_The_Media&utm_medium=referral&utm_campaign=ftm_links&utm_term=020525


About JAMA Network Open: JAMA Network Open is an online-only open access general medical journal from the JAMA Network. On weekdays, the journal publishes peer-reviewed clinical research and commentary in more than 40 medical and health subject areas. Every article is free online from the day of publication.

 

 

Study in India shows kids use different math skills at work vs. school


Students can excel at mental math in marketplace jobs but struggle with formal math in the classroom, and vice versa


Massachusetts Institute of Technology





In India, many kids who work in retail markets have good math skills: They can quickly perform a range of calculations to complete transactions. But as a new study shows, these kids often perform much worse on the same kinds of problems as they are taught in the classroom. This happens even though many of these students still attend school or attended school through 7th or 8th grades.

Conversely, the study also finds, Indian students who are still enrolled in school and don’t have jobs do better on school-type math problems, but they often fare poorly at the kinds of problems that occur in marketplaces.

Overall, both the “market kids” and the “school kids” struggle with the approach the other group is proficient in, raising questions about how to help both groups learn math more comprehensively. 

“For the school kids, they do worse when you go from an abstract problem to a concrete problem,” says MIT economist Esther Duflo, co-author of a new paper detailing the study’s results. “For the market kids, it’s the opposite.”

Indeed, the kids with jobs who are also in school “underperform despite being extraordinarily good at mental math,” says Abhijit Banerjee an MIT economist and another co-author of the paper. “That for me was always the revelation, that the one doesn’t translate into the other.”

The paper, “Children’s arithmetic skills do not transfer between applied and academic math,” will be published in Nature. The authors are Banerjee, the Ford Professor of Economics at MIT; Swati Bhattacharjee of the newspaper Ananda Bazar Patrika, in Kolkata, India; Raghabendra Chattopadhyay of the Indian Institute of Management in Kolkata; Duflo, the Abdul Latif Jameel Professor of Poverty Alleviation and Development Economics at MIT; Alejandro J. Ganimian, a professor of applied psychology and economics at New York University; Kailash Rajaha, a doctoral candidate in economics at MIT; and Elizabeth S. Spelke, a professor of psychology at Harvard University.

Duflo and Banerjee shared the Nobel Prize in Economics in 2019 and are co-founders of MIT’s Jameel Abdul Lateef Poverty Action Lab (J-PAL), a global leader in development economics.

Three experiments

The study consists largely of three data-collection exercises with some embedded experiments. The first one shows that 201 kids working in markets in Kolkata do have good math skills. For instance, a researcher, posing as an ordinary shopper, would ask for the cost of 800 grams of potatoes sold at 20 rupees per kilogram, then ask for the cost of 1.4 kilograms of onions sold at 15 rupees per kilo. They would request the combined answer — 37 rupees —  then hand the market worker a 200 rupee note and collect 163 rupees back. All told, the kids working in markets correctly solved this kind of problem from 95 to 98 percent of the time by the second try.  

However, when the working children were pulled aside (with their parents’ permission) and given a standardized Indian national math test, just 32 percent could correctly divide a three-digit number by a one-digit number, and just 54 percent could correctly subtract a two-digit number from another two-digit number two times. Clearly, the kids’ skills were not yielding classroom results. 

The researchers then conducted a second study with 400 kids working in markets in Delhi, which replicated the results: Working kids had a strong ability to handle market transactions, but only about 15 percent of the ones also in school were at average proficiency in math.

In the second study, the researchers also asked the reverse question: How do students doing well in school fare at market math problems? Here, with 200 students from 17 Delhi schools who do not work in markets, they found that 96 percent of the students could solve typical problems with a pencil, paper, unlimited time, and one opportunity to self-correct. But when the students had to solve the problems in a make-believe “market” setting, that figure dropped to just 60 percent. The students had unlimited time and access to paper and pencil, so that figure may actually overestimate how they would fare in a market.

Finally, in a third study, conducted in Delhi with over 200 kids, the researchers compared the performances of both “market” and “school” kids again on numerous math problems in varying conditions. While 85 percent of the working kids got the right answer to a market transaction problem, only 10 percent of nonworking kids correctly answered a question of similar difficulty, when faced with limited time and with no aids like pencil and paper. However, given the same division and subtraction problems, but with pencil and paper, 59 percent of nonmarket kids got them right, compared to 45 percent of market kids. 

To further evaluate market kids and school kids on a level playing field, the researchers then presented each group with a word problem about a boy going to the market and buying two vegetables. Roughly one-third of the market kids were able to solve this without any aid, while fewer than 1 percent of the school kids did.

Why might the performance of the nonworking students decline when given a problem in market conditions?

“They learned an algorithm but didn’t understand it,” Banerjee says. 

Meanwhile, the market kids seemed to use certain tactics to handle retail transactions. For one thing, they appear to use rounding well. Take a problem like 43 times 11. To handle that intuitively, you might multiply 43 times 10, and then add 43, for the final answer of 473. This appears to be what they are doing.

“The market kids are able to exploit base 10, so they do better on base 10 problems,” Duflo says. “The school kids have no idea. It makes no difference to them. The market kids may have additional tricks of this sort that we did not see.” On the other hand, the school kids had a better grasp of formal written methods of divison, subtraction, and more. 

Going farther in school

The findings raise a significant point about students skills and academic progress. While it is a good thing that the kids with market jobs are proficient at generating rapid answers, it would likely be better for the long-term futures if they also did well in school and wound up with a high school degree or better. Finding a way to cross the divide between informal and formal ways of tackling math problems, then, could notably help some Indian children. 

The fact that such a divide exists, meanwhile, suggests some new approaches could be tried in the classroom. 

Banerjee, for one, suspects that part of the issue is a classroom process making it seem as if there is only one true route to funding an arithmetic answer. Instead, he believes, following the work of co-author Spelke, that helping students reason their way to an approximation of the right answer can help them truly get a handle on what is needed to solve these types of problems. 

Even so, Duflo adds, “We don’t want to blame the teachers. It’s not their fault. They are given a strict curriculum to follow, and strict methods to follow.” 

That still leaves open the question of what to change, in concrete classroom terms. That topic, it happens, is something the research group is in the process of weighing, as they consider new experiments that might address it directly. The current finding, however, make clear progress would be useful. 

“These findings highlight the importance of educational curricula that bridge the gap between intuitive and formal mathematics,” the authors state in the paper. 

Support for the research was provided in part by the Abdul Latif Jameel Poverty Action Lab’s Post-Primary Education Initiative, the Foundation Blaise Pascal, and the AXA Research Fund. 

###

Written by Peter Dizikes, MIT News

 

Missing link in Indo-European languages' history found


New insights into our linguistic roots via ancient DNA analysis



University of Vienna

Fig. 1: Photo of Remontnoye (3766-3637 calBCE), with a spiral temple ring. 

image: 

Fig. 1: Photo of Remontnoye (3766-3637 calBCE), with a spiral temple ring.

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Credit: Natalia Shishlina (co-author of "The Genetic Origin of the Indo-Europeans")




Where lies the origin of the Indo-European language family? Ron Pinhasi and his team in the Department of Evolutionary Anthropology at the University of Vienna contribute a new piece to this puzzle in collaboration with David Reich's ancient DNA laboratory at Harvard University. They analyzed ancient DNA from 435 individuals from archaeological sites across Eurasia between 6.400–2.000 BCE. They found out that a newly recognized Caucasus-Lower Volga population can be connected to all Indo-European-speaking populations. The new study is published in Nature.

Indo-European languages (IE), which number over 400 and include major groups such as Germanic, Romance, Slavic, Indo-Iranian, and Celtic, are spoken by nearly half the world's population today. Originating from the Proto-Indo-European (PIE) language, historians and linguists since the 19th century have been investigating its origins and spread as there is still a knowledge gap. 

The new study published in Nature, also involving Tom Higham and Olivia Cheronet from the University of Vienna, analyzes ancient DNA from 435 individuals from archaeological sites across Eurasia between 6400–2000 BCE. Earlier genetic studies had shown that the Yamnaya culture (3.300-2.600 BCE) of the Pontic-Caspian steppes north of the Black and Caspian Seas expanded into both Europe and Central Asia beginning about 3.100 BCE, accounting for the appearance of "steppe ancestry" in human populations across Eurasia 3.100-1.500 BCE. These migrations out of the steppes had the largest effect on European human genomes of any demographic event in the last 5.000 years and are widely regarded as the probable vector for the spread of Indo-European languages. 

The only branch of Indo-European language (IE) that had not exhibited any steppe ancestry previously was Anatolian, including Hittite, probably the oldest branch to split away, uniquely preserving linguistic archaisms that were lost in all other IE branches. Previous studies had not found steppe ancestry among the Hittites because, the new paper argues, the Anatolian languages were descended from a language spoken by a group that had not been adequately described before, an Eneolithic population dated 4.500-3.500 BCE in the steppes between the North Caucasus Mountains and the lower Volga. When the genetics of this newly recognized Caucasus-Lower Volga (CLV) population are used as a source, at least five individuals in Anatolia dated before or during the Hittite era show CLV ancestry.

Newly recognized population with broad influence

The new study shows the Yamnaya population to have derived about 80% of its ancestry from the CLV group, which also provided at least one-tenth of the ancestry of Bronze Age central Anatolians, speakers of Hittite. "The CLV group therefore can be connected to all IE-speaking populations and is the best candidate for the population that spoke Indo-Anatolian, the ancestor of both Hittite and all later IE languages," explains Ron Pinhasi. The results further suggest that the integration of the proto-Indo-Anatolian language, shared by both Anatolian and Indo-European peoples, reached its zenith among the CLV communities between 4.400 BC and 4.000 BC.

"The discovery of the CLV population as the missing link in the Indo-European story marks a turning point in the 200-years-old quest to reconstruct the origins of the Indo-Europeans and the routes by which these people spread across Europe and parts of Asia", concludes Ron Pinhasi.


Fig. 2: Photo a Yamnaya grave at Tsatsa, North Caspian steppes (I6919), 2847-2499 calBCE.

Credit

Natalia Shishlina

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