Monday, July 24, 2023

 

Dance and the state: Research explores ballet training in Ukraine


While adhering to the Soviet-era Vaganova method, Ukrainian dancers defend their national identity

Peer-Reviewed Publication

BINGHAMTON UNIVERSITY

Ballet dancers 

IMAGE: DANCERS TRAIN AT THE KYIV STATE CHOREOGRAPHIC COLLEGE IN UKRAINE IN 2018. view more 

CREDIT: OLEKSANDRA ZLUNITSYNA




BINGHAMTON, N.Y. --  Ballet training centers of Ukraine successfully resist co-optation by both neo-imperial and nationalist ideologies, forming robust and inclusive dancing communities that in many ways mirror structures of modern Ukrainian society, according to research from Binghamton University, State University of New York.

The signature Vaganova style of Soviet ballet can be described in a number of ways: exacting, athletic, classical, Russian. It’s also uniform across post-Soviet training academies, including those based in now-independent Ukraine.

Training shapes bodies, and post-Soviet dancers still begin training young; students at the Kyiv State Choreographic College in Ukraine range from 10 to 17 years old. But if you’re imagining an authoritarian structure with humorless, disciplinarian teachers, you’d be wrong.

During research at the Kyiv school, Binghamton University Research Assistant Professor Ania Nikulina heard instructors crack jokes, often with a touch of dark humor. Students smiled, laughed and even impersonated faculty during a silly end-of-year theatrical performance.

“There’s a very warm, family-like atmosphere at the school, and teachers are always there to help their students in a multitude of ways,” recalled Nikulina, who spent the spring and summer of 2018 at the school for the ethnographic portion of her doctoral research. “The teachers buy water for everyone and make dance shoes, things like that. People care about each other, especially in difficult times.”

And they were tough times indeed: Ukraine was already several years into its “hybrid” conflict with Russia, which began with Russia’s annexation of Crimea in 2013 and flamed into open warfare in 2022. Nikulina, a dance historian working with Binghamton’s Theatre and German and Russian Studies departments, explores the intersection of art and nation in “Ballet in Ukraine: From Uncertainty to Defiance and Independence,” recently published in Dance Research Journal. She has an extensive background in dance herself; she trained and performed with different dance companies in various dance styles, including ballet, classical and lyrical jazz, and modern dance, in her Siberian hometown of Novosibirsk.

While classical art often transcends national identity, decisions about which productions to stage are shaped by the realities of funding, Nikulina noted. In places where the main funding authority is the state, performances may incorporate nationalistic themes and explore ideas of nation. Ballet dancers, in a sense, are already sacrificing their bodies for the state; they sustain physical injuries in the course of the art’s long and grueling training.

“Dance historians for at least the past two decades have found deep connections between political regimes and tensions and different dance cultures,” she said. “Dancers, of course, are cultural agents.”

In the Soviet Union, the Ministry of Culture sponsored classical dance and decided which productions would receive state support. That arrangement continued in post-Soviet Russia and Ukraine throughout the 1990s and early 2000s despite salary cuts and delays. When state funding lapses, as it has increasingly in Ukraine, then private institutions begin to fill the gap.

In addition to classical ballets, Ukrainian productions have relied on folk dance and narratives. Nikulina offered one example: the Ukrainian ballet Lileya. While it takes place in Imperial times, its protagonist is a girl whose rural community suffers from Russian aggression.

“There is a very deep coupling of subjectivity with different kinds of nationalistic stories that often feature resistance to Russian authorities,” Nikulina said. “When you’re dancing on stage, you will explore these scenarios. It might feel natural, when the time comes, to defend or criticize these narratives.”

Some ballet dancers have done just that: In the first days of the Russian invasion, they answered their nation’s call to arms and enlisted in military service to defend the homeland.

A tough time for artists

Even before the 2022 invasion, ballet dancers felt the strain of conflict. After all, working in a state-sponsored atmosphere, artists know where the funding comes from — and when funding doesn’t come through because the government needs to give priority to the Ministry of Defense.

National divisions aside, both Ukrainian and Russian dancers study the Vaganova method, which is highly sought-after in international ballet companies. During her interviews and observations at the Kyiv school, however, Nikulina realized that the Ukrainian approach has diverged from its Soviet predecessor. Individual attention and adaptation to student needs are the norm these days, as is humor.

“Students laugh out loud in classes and it seems like it relieves a lot of tension and pressure,” she said.

Teachers and students felt free to criticize state authorities, as funding deficits sometimes left the school without heating during the winter. And while teachers may have some nostalgia for the funding and extensive professional networks of the Soviet period, they don’t miss the Soviet regime or look to Russia as its successor state or as a new cultural capital, Nikulina observed.

Following the 2022 open invasion, many Ukrainian dancers evacuated to countries like Latvia, Lithuania, Poland and Germany to find work; during her ethnographic study, teachers highlighted their connections with international theaters and encouraged their students to head abroad.

“Successful students find jobs elsewhere, partially because of political instability, but also because Russian theaters are not as accessible or desirable to them as they were prior to the war,” Nikulina said. “Because of the revolutions in post-Soviet Ukraine and the hybrid warfare period that began in 2014 until the full-scale invasion, dancers became extra motivated to find positions elsewhere where it’s safe and where they can possibly bring their families.”

Working abroad, however, often means a reliance on short-term contracts with a dance company that can expire after three to six months. While that can be beneficial for dancers looking to escape war, it also leads to a different kind of stress when they consider their longer-term future, Nikulina said.

“For these dancers, instability is doubled: You have political influences such as hybrid warfare, revolution, and full-scale war, but also the particularities of the dance industry and its short-term contracts,” she said. “It’s very hard for artists right now.”

 

Muscadine wine shows promise in improving aging skin


Daily dose of dealcoholized wine enhanced skin elasticity in middle-aged women

Reports and Proceedings

AMERICAN SOCIETY FOR NUTRITION



Could muscadine wine help perk up sagging skin? According to a new study, women who drank two glasses of dealcoholized muscadine wine daily showed significant improvements in the elasticity and water retention of their skin compared with those who consumed a placebo.

 

The study is the first time scientists have studied the impacts of nonalcoholic wine consumption on skin health in a randomized clinical trial. Researchers attribute the beneficial effects to chemical compounds called polyphenols that naturally occur in many plants.

 

“Muscadine grapes have been found to have a unique polyphenolic profile in comparison to other red wine varieties,” said Lindsey Christman, PhD, who conducted the research with Liwei Gu, PhD, professor of food chemistry and functional food at the University of Florida. “Our study suggests that muscadine wine polyphenols have potential to improve skin conditions, specifically elasticity and transepidermal water loss, in middle aged and older women.”  

 

Christman will present the findings at NUTRITION 2023, the flagship annual meeting of the American Society for Nutrition held July 22–25 in Boston.

 

Muscadine grapes are native to the Southeastern United States and are commonly used to make wine. Previous clinical trials have suggested that polyphenols found in muscadine wine including anthocyanins, quercetin, and ellagic acid can help to decrease inflammation and oxidative stress. 

 

For the study, researchers recruited 17 women age 40-67 and randomly assigned them to drink either dealcoholized wine or a placebo beverage that looked and tasted similar but did not contain polyphenols. Participants consumed 300 milliliters or about 10 ounces (the equivalent of two glasses of wine) of their assigned beverage daily for six weeks, then took a three-week break before switching to the opposite beverage for six weeks.

 

Researchers measured participants’ skin conditions and markers of inflammation and oxidative stress at the start of the study and at the end of each six-week period. They found that drinking muscadine wine significantly improved skin elasticity (a loss of elasticity is what causes skin to sag more as we age). In addition, the wine was associated with a decrease in water loss at the skin surface, a measurement that indicates the skin is providing a more effective barrier against damage.

 

The researchers did not see any significant difference in the amount of wrinkles on the skin. Participants showed improvements in skin smoothness and less evidence of inflammation and oxidative stress compared to baseline, but there was not a significant difference in these factors between dealcoholized muscadine wine and the placebo.

 

“This cross-over study demonstrated that six weeks of dealcoholized muscadine wine consumption resulted in improvement of certain skin parameters associated with aging, such as elasticity on the forearm and barrier function of the skin on the face, when compared to baseline and placebo,” said Christman. “This is likely due to decreases in inflammation and oxidative stress.”

 

Since the trial involved only 17 participants, repeating the study with a larger and more diverse group of people would help to confirm and strengthen the findings. In addition, most commercially-available muscadine wine contains alcohol, and researchers cautioned that drinking wine with alcohol may produce a different result.

 

“We used dealcoholized muscadine wine because we were interested in the effect of the bioactive compounds in wine, specifically the polyphenols, on skin health,” said Christman. “Alcohol would add another variable to the study that may cause the effects to be different. In addition, the dealcholization process may alter the chemical composition.”

 

Christman will present this research at 12:45 p.m. EDT on Monday, July 24, during the Aging and Chronic Disease Poster Session in the Hynes Convention Center Hall C (abstract; presentation details).

 

Please note that abstracts presented at NUTRITION 2023 were evaluated and selected by a committee of experts but have not generally undergone the same peer review process required for publication in a scientific journal. As such, the findings presented should be considered preliminary until a peer-reviewed publication is available.

 

About NUTRITION 2023

NUTRITION 2023 is the flagship meeting of the American Society for Nutrition and the premier educational event for nutritional professionals around the globe. NUTRITION brings together lab scientists, practicing clinicians, population health researchers, and community intervention investigators to identify solutions to today’s greatest nutrition challenges. Our audience also includes rising leaders in the field – undergraduate, graduate, and medical students. NUTRITION 2023 will be held July 22-25, 2023 in Boston. https://nutrition.org/N23 #Nutrition2023

 

About the American Society for Nutrition (ASN)

ASN is the preeminent professional organization for nutrition research scientists and clinicians around the world. Founded in 1928, the society brings together the top nutrition researchers, medical practitioners, policy makers and industry leaders to advance our knowledge and application of nutrition. ASN publishes four peer-reviewed journals and provides education and professional development opportunities to advance nutrition research, practice, and education. Since 2018, the American Society of Nutrition has presented NUTRITION, the leading global annual meeting for nutrition professionals. http://www.nutrition.org

 

Find more news briefs from NUTRITION 2023 at: https://www.eurekalert.org/newsroom/nutrition2023.

 

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Strawberry consumption may improve cognitive function in older adults, new study says


Strawberry intake also associated with improved cardiometabolic health

Reports and Proceedings

WILD HIVE




Daily strawberry consumption was linked to improved cognitive function, lower blood pressure and higher antioxidant capacity in a randomized clinical trial presented today at Nutrition 2023, the annual meeting of the American Society of Nutrition (ASN). The study was conducted at San Diego State University and builds on previous research demonstrating the cardiovascular, metabolic and cognitive health benefits of strawberries.

The double-blind, placebo-controlled study was conducted in 35 healthy men and women, aged 66 to 78. The participants consumed 26 grams of freeze-dried strawberry powder, equivalent to two servings of strawberries daily, or a control powder for eight weeks each.

Following strawberry consumption, cognitive processing speed increased by 5.2%, systolic blood pressure decreased by 3.6% and total antioxidant capacity significantly increased by 10.2%. Waist circumference decreased by 1.1% during both the control and intervention arms of the trial. While consuming the control powder, participants experienced increased serum triglycerides.

“This study demonstrates that consuming strawberries may promote cognitive function and improve cardiovascular risk factors like hypertension,” said Shirin Hooshmand, professor in the School of Exercise and Nutrition Sciences at San Diego State and principal investigator on the study. “We’re encouraged that a simple dietary change, like adding strawberries to the daily diet, may improve these outcomes in older adults.”

Strawberries are a source of many bioactive compounds. In addition to providing 100% of our daily vitamin C needs, strawberries contain heart-healthy nutrients like folate, potassium, fiber, phytosterols and polyphenols.

Previous clinical trials have connected strawberry consumption to improvements in several markers for cardiovascular disease, including reduced total and LDL cholesterol (TC) and lower blood pressure. The link between strawberry consumption and brain health has also been well explored in both clinical and population-based studies. Strawberries and pelargonidin, a biochemical primarily found in strawberries, were associated with a reduced risk of Alzheimer’s dementia in studies conducted at Rush University. Long-term observational studies, including the Health Professionals Study and the Nurses' Health Study, found that strawberry consumers had lower rates of cognitive decline.

For more information on strawberry research, you can view the California Strawberry Commission’s Health Research Round-Up.


NEW STUDIES SHOW DAILY PRUNE

CONSUMPTION SUPPORTS

CARDIOVASCULAR HEALTH IN AGING

POPULATION

Reports and Proceedings

FLEISHMAN-HILLARD, SACRAMENTO

ROSEVILLE, CALIF. – July 24, 2023 


 


A pair of new studies presented as abstracts today at the American Society of Nutrition (ASN) annual meeting report that daily prune consumption has promising effects on several biomarkers related to cardiovascular health. Conducted in postmenopausal women and men 55 years and older, the studies reveal:

  • In men, long-term prune consumption improved HDL cholesterol and the total cholesterol to HDL ratio, while decreasing oxidative stress and the inflammatory biomarker C-reactive protein (CRP).
  • In older women, long-term prune consumption had no negative effect on various metabolic measures related to heart disease risk including total cholesterol, total triglycerides, fasting glucose, and insulin levels.

The results of both studies were presented at the ASN annual flagship meeting in Boston, MA. The ASN convenes researchers, practitioners, global and public health professionals, policymakers and advocacy leaders, industry, media, and other related professionals to advance nutrition science and its practical application.

“Currently, there are a limited number of randomized controlled trials conducted in aging men and women that explore the relationship between prune consumption and cardiovascular-related blood biomarkers,” said Mary Jane De Souza, PhD, FACSM, FANK, Distinguished Professor, Pennsylvania State University, and principal investigator of the postmenopausal women study. “We want to advance the research on this topic area to better understand how prune consumption relates to cardiometabolic health outcomes, especially in the aging population that often experiences an elevated risk for cardiovascular disease.”

Cardiovascular diseases are among the leading causes of death in the United States1 and risk factors include high cholesterol levels, diabetes, obesity, and aging.One of the primary dietary recommendations to lower cardiovascular disease risk is to consume a wide variety of fruits and vegetables.As a whole fruit with no added sugars, prune consumption may support healthy dietary patterns and promote better outcomes related to cardiovascular health.

“It is exciting to see research on prune consumption and cardiovascular health expand,” says Andrea N. Giancoli, MPH, RDN, Nutrition Advisor, California Prune Board. “While all fruits and vegetables provide essential nutrients, prunes make for an easy, convenient and versatile snack or recipe ingredient that is accessible year-round and can help support consumers’ cardiovascular health goals.”

These two studies represent the latest additions of research on prune consumption and human health. Previous research has shown that daily prune consumption can help support gut health, bone health, and weight management.

References:

  1. Center for Disease Control and Prevention, National Center for Health Statistics (2023, January 18). Leading causes of deathhttps://www.cdc.gov/nchs/fastats/leading-causes-of-death.htm
  2. Center for Disease Control and Prevention (2023, March 21). Know Your Risk for Heart Diseasehttps://www.cdc.gov/heartdisease/risk_factors.htm
  3. American Heart Association (n.d.). The American Heart Association Diet and Lifestyle Recommendationshttps://www.heart.org/en/healthy-living/healthy-eating/eat-smart/nutrition-basics/aha-diet-and-lifestyle-recommendations

ABOUT THE CALIFORNIA PRUNE BOARD

The California Prune Board was established in 1952 to represent growers and handlers under the authority of the California Secretary of Food and Agriculture. California is the world’s largest producer of prunes with orchards across 14 counties in the Sacramento and San Joaquin valleys. Promoting a lifetime of wellness through the enjoyment of California Prunes, the organization leads the premium prune category with generations of craftsmanship supported by California’s leading food safety and sustainability standards. California Prunes. Prunes. For life.




 

JBC editors weigh in on AI in science publishing


In an editorial, they say they’ll allow its use in manuscript preparation but not during the review process

Business Announcement

AMERICAN SOCIETY FOR BIOCHEMISTRY AND MOLECULAR BIOLOGY




Last week, the Journal of Biological Chemistry published an editorial to define appropriate and inappropriate uses of artificial intelligence technology in the “preparation and review of manuscripts being considered for publication.”

The editorial states that AI technology:

  • Can be used to prepare manuscript text to improve clarity
  • Cannot be listed as an author on a manuscript
  • Cannot be used in any part of the review process

Roger Colbran, a professor of molecular physiology and biophysics at Vanderbilt University School of Medicine and an associate editor of the JBC, authored the editorial with Editor-in-Chief Alex Toker of Beth Israel Deaconess Medical Center and Harvard Medical School.

“The rapid development and continued evolution of AI-based tools makes it hard to get a handle on their limitations in real-life use,” Colbran said. “These uncertainties make it important for the publishing industry, including the JBC, to define clear policies surrounding the acceptable and unacceptable uses of current AI-based technologies, with a clear understanding that they will need to be regularly updated as the technologies are further developed.”

The editorial acknowledges the potential benefits that AI technology may provide to non-native English speakers preparing manuscripts for submission, stating that the JBC will “welcome authors to make use of generative AI technologies in editing the text of their manuscript, in much the same way that authors may make use of more traditional editing services.” If AI is used for the editing of a manuscript, it must be included in the acknowledgements section of the manuscript, the editorial says.

“AI-driven tools have the potential to significantly reduce the amount of time and effort that scientists must dedicate to writing essentially any documents, be they research articles, reviews, book chapters, grants, or manuscript/grant critiques,” Colbran said. “There are also benefits in allowing scientists to rapidly learn about new areas of science. This could drive an increase in the overall efficiency of the entire research enterprise by allowing researchers to dedicate more time to doing actual science.”

Finally, the editorial states that AI may not be used for manuscript review, such as during the writing of manuscript critiques or decision letters. It points to the possibility that using AI may violate data privacy rights and cites published concerns about the confidentiality. Uploading a manuscript to a public AI tool may allow “retained conversations to be accessed by their AI trainers to improve future performance,” it says.

“There are significant concerns about the confidentiality of any information that is provided to these systems,” Colbran said. “Additional generative AI tools are being rapidly developed to ‘create’ raw image data, potentially including gels, blots and micrographs. Such synthesized data may be very hard to detect using the image analysis pipelines currently used by journals and publishers.”

About the American Society for Biochemistry and Molecular Biology (ASBMB): The ASBMB is a nonprofit scientific and educational organization with more than 12,000 members worldwide. Founded in 1906 to advance the science of biochemistry and molecular biology, the society publishes three peer-reviewed journals, advocates for funding of basic research and education, supports science education at all levels, and promotes the diversity of individuals entering the scientific workforce. For more information about the ASBMB, visit www.asbmb.org.

 

Philadelphia soil project signals largely positive findings for urban growers


Grant and Award Announcement

PENN STATE

Gloved hands digging in soil 

IMAGE: INITIAL FINDINGS FROM A SOIL TESTING PROJECT LAUNCHED A YEAR AGO IN PHILADELPHIA INDICATE POSITIVE NEWS FOR URBAN GROWERS — LOW LEVELS OF CONTAMINANTS AND THE POTENTIAL TO SAVE MONEY ON COMPOST. view more 

CREDIT: COURTESY OF JOHN BYRNES




UNIVERSITY PARK, Pa. — Initial findings from a soil testing project launched a year ago in Philadelphia indicate positive news for urban growers — low levels of contaminants and higher than expected levels of nutrients.

The project is aimed at helping to ensure safe and productive urban gardening, according to John Byrnes, Penn Sate community vitality extension educator in Philadelphia. With support from a $100,000 grant from the Pennsylvania Department of Agriculture, Penn State researchers are developing recommendations for site assessment, soil testing and management for gardening in urban settings. Stakeholders, including Penn State Extension educators and Master Gardeners, Philadelphia Parks and Recreation’s Farm Philly Program, and Temple University, are collaborating to provide site-specific assessments and soil testing guidance.

Patrick Drohan, team lead on the grant and professor of soil science and pedology in Penn State’s College of Agricultural Sciences, noted that the process of determining what soil test one needs begins with identifying how one’s gardening site was used in the past — perhaps even 100 years ago. Past uses, identified through what is called site assessment, can affect a soil’s fertility, potential contaminants and overall health.

Byrnes explained that the project focuses in part on how to make soils healthier — an area he said Penn State Extension can make a significant impact.

Last summer, the project took flight with a pilot group of about 15 managers of urban farms and gardens from across Philadelphia who volunteered to have their soil tested by Penn State Extension. The resulting reports include an integrated overview that provides all essential information in one place. Byrnes explained that soil test reports typically include two separate reports for soil fertility and heavy metals, which can be confusing for growers. The team aimed to create an integrated report that consolidated all information in an easily understandable format.

The initial findings were a pleasant surprise for the growers, with arsenic, cadmium and lead levels below any concerning thresholds in most of the locations sampled. However, the pilot sites often exhibited excessively high pH and concentrations of phosphorus, potassium, calcium, magnesium and soluble salts.

This discovery suggests, Byrnes said, that urban gardening organizations with limited budgets can reduce amendment application, which involves adding substances such as compost, manure or peat moss to boost soil fertility. The study’s findings indicate that using soil testing to guide decision making can prevent overfeeding with phosphorus and other minerals. As a result, urban farms can lower spending on compost and other amendments.

Over the past year, Raymond Balaguer Barbosa, Penn State urban agriculture extension educator and project collaborator, visited the growers, assessed their operations and offered tailored technical advice based on the soil test results.

Extension plans to develop educational materials, including short videos, fact sheets and workshops, Balaguer Barbosa said, to empower growers with the knowledge and skills for soil testing and interpretation. Temple University’s contributions to the project also aim to equip growers with a deeper understanding of the land, Byrnes said. 

Penny Retica, a Temple University student, focused on the ways the historical context of the land — particularly in relation to Philadelphia’s industrial past — can enrich the relationship a community gardener or farmer has to the land. Historical site assessments can allow growers to discover what existed on the land decades ago, such as a gas station, factory or even a thriving community garden.

Retica collaborated with Megan MacCall, special collections curator of maps at the Free Library of Philadelphia, to create educational materials, including a story map. This user-friendly, interactive tool integrates the extensive collection of historical maps of Philadelphia, freely available online, to reveal site histories that might inform growers’ decisions on how to use the land.

Byrnes said that knowing the site history can help gardeners scale their level of concern and take appropriate measures such as capping the soil, creating raised beds or bringing in clean soil from another source.

Looking ahead, Retica expressed interest in exploring the intersection between urban agriculture and public data.

“Both areas benefit from increased participation and collective efforts,” Retica said. “It would be exciting to see the development of interactive soil maps where people can contribute their own soil data and site histories.”

Ultimately, Balaguer Barbosa said, the project revolves around empowering growers.

“Our main goal is to get the information out to the growers as quickly as possible, especially since the growing season has already started,” he said, explaining that urban gardening can help reduce food insecurity, anxiety, depression and engage a variety of people. “Many new farmers are starting up with no prior experience, and we want to help them do something positive for their community.”

Team members on this project include Raymond Balaguer Barbosa, urban agriculture educator, Penn State Extension, Philadelphia; John Byrnes, community vitality educator, Penn State Extension, Philadelphia; Patrick Drohan, Department of Ecosystem Science and Management; John Spargo, Agricultural Analytical Laboratory and Department of Plant Science; Justine Lindemann, Department of Agricultural Economics, Sociology, and Education; Jessica Schweiger; Master Gardener coordinator, Penn State Extension, Philadelphia; Meghan Chawner, Penn State Extension educator in Lehigh and Northampton counties; and Beth Yount, Master Watershed Steward Coordinator, Penn State Extension, Philadelphia.

 

Water-scarce cultures value long-term thinking more than their water-rich neighbors do


Peer-Reviewed Publication

ASSOCIATION FOR PSYCHOLOGICAL SCIENCE




Water is the world’s most valuable natural resource. Although a human can survive weeks or even months without food, going as little as three days without water could spell the end. The effects of water scarcity aren’t limited to immediate survival situations, however. Recently published research in Psychological Science suggests that cultures from water-scarce environments tend to be more likely than cultures from water-rich areas to value long-term thinking and to scorn short-term indulgence. 

“Individuals from historically water-scarce climates tend to be more long-term oriented and less indulgent,” said Hamidreza Harati (The University of Queensland) in an interview. “Even in modern environments with easy access to water, cultural responses shaped by historical water scarcity still influence individuals’ decision-making processes.” 

Harati and Thomas Talhelm (The University of Chicago) reached this conclusion after carrying out four studies on water scarcity, long-term orientation, and indulgence. 

The first study focused on a “natural test case” of 331 undergraduate students from two cities in Iran: water-scarce Yazd and water-rich Shiraz. When surveyed about their values, participants from Yazd rated themselves more than twice as high for long-term orientation (e.g., by agreeing more with the statement “Persistent efforts are the surest way to results”) than participants from Shiraz. Students from water-rich Shiraz, on the other hand, rated themselves almost twice as high for indulgence (e.g., by rating themselves higher for valuing “keeping time free for fun” than for “having few desires”). 

Participants also responded similarly when asked about the values of an average person from their city. These differences remained significant when the researchers controlled for participants’ gender, age, marital status, and economic status. 

Harati and Talhelm also found that water-scarcity-based cultural differences were reflected in people’s behavior. In a second study of 182 job applicants, the researchers found that applicants from water-scarce Yazd were twice as likely to apply for a stable position at an established company than for a flexible role at a start-up. Participants from water-rich Shiraz, by comparison, were slightly more likely to apply for the start-up position. 

The researchers observed similar short-term effects in an experiment in which they tasked 211 students at the University of Tehran with reading the abstract from one of two fictional scientific studies that made predictions about changes in the availability of water from 2022 to 2032. Students who read the abstract that predicted a severe water shortage reported having a stronger long-term orientation than those who read the abstract that predicted a surplus. Students in the control condition, who completed the survey without reading any abstract, had responses that fell between those of the other two groups. Students who read the abstract that predicted a water shortage also reported being less indulgent, but this was not statistically significant. 

Finally, to explore how these findings might apply across cultural contexts, Harati and Talhelm analyzed how the availability of fresh water in 87 countries between 1962 and 2014 correlated with national scores for each population’s long-term orientation and indulgence. Numerous ongoing and historic conditions—including average temperature, economic development, population density, frequency of natural disasters, corruption, agriculture, religion, disease risk, and war—can influence a country’s cultural values. However, when Harati and Talhelm controlled for these factors, fresh water per capita remained a significant predictor of a nation’s long-term orientation and indulgence. 

“The results add to the growing field of ecological psychology, which posits that the environment plays a role in shaping people’s psychology,” Harati and Talhelm wrote. Focusing on understudied regions like the cities of Shiraz and Yazd in Iran also contributes to a broader understanding of cultural differences, underscoring the importance of including diverse samples and cultural perspectives in psychological research, Harati told APS. 

Future research on water scarcity and culture could help address climate change by identifying more effective policies and other interventions to encourage sustainable behaviors, Harati added. 

“There is emerging evidence that groups that value the long term are already investing more in green strategies to fight the biggest environmental threat to our future—climate change,” the researchers wrote. “The cultural value that helped humans adapt to environmental threats of our long-term past might help us adapt to the world’s biggest environmental threat of the future.”  

Reference 

Harati, H., & Talhelm, T. (2023). Cultures in water-scarce environments are more long-term oriented. Psychological Science, 34(7), 754–770. https://doi.org/10.1177/09567976231172500  

Unlocking secrets of the elusive ghost shark


UNIVERSITY OF FLORIDA

Ghost Shark 

IMAGE: A GHOST SHARK, FORMALLY CALLED CHIMAERA view more 

CREDIT: UNIVERSITY OF FLORIDA




Researchers from the University of Florida and the Seattle Aquarium are exploring 100 meters underwater in the Pacific Northwest this summer to learn more about mysterious ghost sharks, one of the strangest beasts from the depths of the ocean.

Using remotely operated underwater vehicles, or ROVs, the scientists searched for nesting grounds of the Pacific spotted ratfish, Hydrolagus colliei, a ghostlike fish that lurks on the ocean floor.

“We know very little about these elusive relatives of sharks and even less about their spawning habits and embryonic development,” said Gareth Fraser, an assistant professor of biology at UF, before leaving for the expedition. “We will deploy ROVs to try to find where these ghost sharks lay their eggs.”

Related to sharks and rays but separated by nearly 400 million years of evolution, ghost sharks — formally called chimaeras — are one of the most enigmatic and understudied group of fishes, Fraser said. They typically live in deep waters, which is why scientists don’t know much about them. However, there are a few places in the world, including in the Salish Sea along the coast of Washington, where chimaeras will come into more shallow waters to breed and feed, especially during the summer months.

“If we can locate their embryos, we can begin to learn about the developmental processes that lead to some weird morphologies, or biological characteristics, unique to these fishes,” Fraser said.

For example, chimaeras have big round eyes like a rabbit that allow them to see as they creep in the dark hunting for food. They have ever-growing tooth plates like a rodent, which is why they are often called ratfish. While shark skin is covered in teeth, chimaeras have no teeth on their skin, and the males have a giant bulb on their forehead called a tenaculum that grows spiky teeth that look like shark teeth.

“We think they use this head clasper like a second ‘jaw’ on their head to bite down and attach to the female during copulation,” Fraser explained. “Ghost sharks are a very strange group of shark relatives whose biology makes them a bit other-worldly. When we get a chance to find these obscure fish where they feed and breed, we have to go for it.”

Fraser and others across the globe have had success in the last year with deep-water trawling projects locating adult ghost sharks, but studying older fish doesn’t shed much light on their developmental processes. This summer’s underwater search for the ghost shark nesting areas is the first of its kind for this species.

“We found a lot of different stages of the fish last year, from newly hatched babies to fully mature adults, so this year, we’re going back to find their nursery grounds,” Fraser said.

The ghost shark exploration project is supported through funds from a National Science Foundation grant focused on skin teeth of sharks and Fraser’s UF start-up grant. The team hopes to uncover secrets about origins of teeth, which could help them learn more about how to regrow human teeth.

The four-day expedition began June 11 in Seattle, with the team on a pier operating the ROV, which is essentially an underwater drone, that traveled about 10 meters deep in search of the ghost shark nesting sites.

In the coming weeks, the team will deploy the ROV about 100 meters deep from a boat in Elliot Bay in Puget Sound, and other sites around the San Juan Islands. Covered in cameras that will deliver 360-degree views, the ROV will capture images designed to create a virtual reality scene of the depths of the ocean for scientists once they are back in the lab.

“This will take us to the waters off Washington state, so that we can swim with these ghost sharks virtually and get an up-close, panoramic view of their environment,” Fraser said.

Karly Cohen, a UF biology postdoctoral fellow in the Fraser Lab who originally located the potential ghost shark nursing sites, said their project is an excellent opportunity to help strengthen conservation efforts.

“It’s important to learn about these understudied deep-water fish and their reproductive strategies,” she said. “Ultimately, we want to protect this really charismatic species.”

Ghost shark up close [VIDEO] |


UNIVERSITY OF FLORIDA

UF biologist Karly Cohen operates the ROV from a pier in Seattle



UF biologist Gareth Fraser holds a ghost shark




 

Risk of fatal heart attack may double in heat wave & high fine particulate pollution days


Heat waves, cold snaps and high levels of fine particulate pollution could raise heart attack risk; however, the most dangerous combination is heat and fine particulate pollution, according to a new study published in Circulation

Peer-Reviewed Publication

AMERICAN HEART ASSOCIATION




Research Highlights:

  • An analysis of more than 202,000 heart attack deaths between 2015-2020 in a single Chinese province found that days that had extreme heat, extreme cold or high levels of fine particulate matter (PM2.5) air pollution were significantly associated with the risk of death from a heart attack, especially in women and older adults.
  • The greatest increase in the risk of death from heart attack was seen on days that had the combination of extreme heat and high levels of PM2.5.
  • The days with extreme heat were associated with an increased risk of heart attack death in women vs. men, and in older adults than in younger adults. Older adults were also at a greater risk of heart attacks compared to younger adults during days with extreme cold or high levels of PM2.5.

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DALLAS, July 24, 2023 — The combination of soaring heat and smothering fine particulate pollution may double the risk of heart attack death, according to a new study of more than 202,000 heart attack deaths in China. The study published today in the American Heart Association’s flagship journal Circulation.

“Extreme temperature events are becoming more frequent, longer and more intense, and their adverse health effects have drawn growing concern. Another environmental issue worldwide is the presence of fine particulate matter in the air, which may interact synergistically with extreme temperatures to adversely affect cardiovascular health,” said senior author Yuewei Liu, M.D., Ph.D., an associate professor of epidemiology in the School of Public Health at Sun Yat-sen University in Guangzhou, China. “However, it remains unknown if and how co-exposure to extreme temperatures and fine particulate pollution might interact to trigger a greater risk of death from heart attack, which is an acute response potentially brought on by an acute scenario and a great public health challenge due to its substantial disease burden worldwide.”

To examine the impact of extreme temperatures with and without high levels of fine particulate pollution, the researchers analyzed 202,678 heart attack deaths between 2015-2020 that occurred in Jiangsu province, a region with four distinct seasons and a wide range of temperatures and fine particulate pollution levels. The deaths were among older adults with an average age of 77.6 years; 52% were older than age 80; and 52% were male. Particulate exposure on the day of each death and one day before death were included in the analysis.

Extreme temperatures were gauged according to the daily heat index (also referred to as apparent temperature) for an area, which captures the combined effect of both heat and humidity. Both the length and extremeness of heat waves and cold snaps were evaluated. Heart attack deaths, or case days, during these periods were compared with control days on the same day of the week in the same month — meaning that if a death occurred on a Wednesday, all other Wednesdays in the same month would be considered control days. Particulate levels were considered high on any day with an average level of fine particulate matter above 37.5 micrograms per cubic meter.

“Our findings provide evidence that reducing exposure to both extreme temperatures and fine particulate pollution may be useful to prevent premature deaths from heart attack, especially for women and older adults,” Liu said.

Compared with control days, the risk of a fatal heart attack was observed at the following levels:

  • 18% higher during ­2-day heat waves with heat indexes at or above the 90th percentile (ranging from 82.6 to 97.9 degrees Fahrenheit), increasing with temperature and duration, and was 74% higher during 4-day heat waves with heat indexes at or above the 97.5th percentile (ranging from 94.8 to 109.4 degrees Fahrenheit). For context, 6,417 (3.2%) of the 202,678 observed deaths from heart attack happened during heat waves with heat indexes at or above the 95th percentile (ranging from 91.2 to 104.7 degrees Fahrenheit) for three or more days.
  • 4% higher during 2-day cold snaps with temperatures at or below the 10th percentile (ranging from 33.3 to 40.5 degrees Fahrenheit), increasing with lower temperatures and duration, and was 12% higher during 3-day cold snaps with temperatures at or below the 2.5th percentile (ranging from 27.0 to 37.2 degrees Fahrenheit). For context, 6,331 (3.1%) of the 202,678 observed deaths from heart attack happened during cold spells with temperatures at or below the 5th percentile (ranging from 30.0 to 38.5 degrees Fahrenheit) for 3 or more days.
  • Twice as high during 4-day heat waves that had fine particulate pollution above 37.5 micrograms per cubic meter. Days with high levels of fine particulate pollution during cold snaps did not have an equivalent increase in the risk of heart attack death.
  • Generally higher among women than men during heat waves.
  • Higher among people ages 80 and older than in younger adults during heat waves, cold snaps or days with high levels of fine particulate pollution.
  • The mean age of all individuals who died from a heart attack in Jiangsu from 2015-2020, including during non-extreme temperature events, was 77.6 years old; 52.1% of these individuals were over 80 years old.

The researchers estimated that up to 2.8% of heart attack deaths may be attributed to the combination of extreme temperatures and high levels of fine particulate pollution (> 37.5 micrograms per cubic meter), according to WHO targets.

“Strategies for individuals to avoid negative health effects from extreme temperatures include following weather forecasts, staying inside when temperatures are extreme, using fans and air conditioners during hot weather, dressing appropriately for the weather, proper hydration and installing window blinds to reduce indoor temperatures,” said Liu. “Using an air purifier in the house, wearing a mask outdoors, staying clear of busy highways when walking and choosing less-strenuous outdoor activities may also help to reduce exposure to air pollution on days with high levels of fine particulate pollution. To improve public health, it is important to take fine particulate pollution into consideration when providing extreme temperature warnings to the public.”

In a 2020 scientific statement and a 2020 policy statement, the American Heart Association details the latest science about air pollution exposure and the individual, industrial and policy measures to reduce the negative impact of poor air quality on cardiovascular health. Reducing exposure to air pollution and reversing the negative impact of poor air quality on cardiovascular health, including heart disease and stroke, is essential to reducing health inequities in Black and Hispanic communities, those that have been historically marginalized and under-resourced, and communities that have the highest levels of exposure to air pollution.   

The investigators recommended additional research about the possible interactive effects of extreme weather events and fine particulate pollution on heart attack deaths in areas with different temperature and pollution ranges to confirm their findings. The study did not include adjustments for any adaptive behaviors taken by individuals, such as using air conditioning and staying indoors, when temperatures are extreme or pollution levels are high, which could cause misclassification of individuals’ exposure to weather and alter their risk patterns. These results also may not be generalizable to other regions in China or other countries due to potential variations of adaption capacity and temperature distribution.

Background:

  • Fine particulates are less than 2.5 microns in size and may be inhaled deep into the lungs, where they can irritate the lungs and blood vessels around the heart. Most are associated with fuel combustion, such as particles from car exhaust, factory emissions or wildfires.
  • Previous research has confirmed that exposure to particulate matter including fine particulates is linked to heart disease, stroke and other health issues.
  • For context, the World Health Organization’s target for average annual exposure to fine particulate pollution level is no more than 5 micrograms per cubic meter and no more than 15 micrograms per cubic meter for more than 3-4 days per year.
  • In this study, heat waves were defined as periods at or above the 90th, 92.5th, 95th and 97.5th percentiles of daily heat indexes (ranging from 82.6 to 109.4 degrees Fahrenheit across Jiangsu province, China) for at least 2, 3 or 4 consecutive days.
  • Cold spells were defined as periods at or below the 10th, 7.5th, 5th, 2.5th percentiles of daily heat indexes (ranging from 27 to 40.5 degrees Fahrenheit) for at least 2, 3 or 4 consecutive days.

Co-authors and authors’ disclosures are listed in the manuscript. This study was funded by China’s Ministry of Science and Technology.

Statements and conclusions of studies published in the American Heart Association’s scientific journals are solely those of the study authors and do not necessarily reflect the Association’s policy or position. The Association makes no representation or guarantee as to their accuracy or reliability. The Association receives funding primarily from individuals; foundations and corporations (including pharmaceutical, device manufacturers and other companies) also make donations and fund specific Association programs and events. The Association has strict policies to prevent these relationships from influencing the science content. Revenues from pharmaceutical and biotech companies, device manufacturers and health insurance providers and the Association’s overall financial information are available here.

Additional Resources:

About the American Heart Association

The American Heart Association is a relentless force for a world of longer, healthier lives. We are dedicated to ensuring equitable health in all communities. Through collaboration with numerous organizations, and powered by millions of volunteers, we fund innovative research, advocate for the public’s health and share lifesaving resources. The Dallas-based organization has been a leading source of health information for nearly a century. Connect with us on heart.orgFacebookTwitter or by calling 1-800-AHA-USA1.

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