Thursday, May 01, 2025

 

Guided VR meditations can reduce anxiety for parents of hospitalized children



Meditation lowers parents’ anxiety




Stanford Medicine





Parenting in the hospital is stressful. Moms and dads naturally focus on their ill child, sometimes to the neglect of their own mental health.

A Stanford Medicine team has found an effective way to help: Using a virtual reality headset, parents of inpatients at Lucile Packard Children’s Hospital Stanford can participate in a short, guided meditation that helps them relax and build healthy coping skills.

The VR-guided meditation reduced parental anxiety by about 30% in a study that was published recently in the Journal of Patient Experience. It was especially helpful for Spanish-speaking families, who could complete the meditation in their own language, the study found.

“We know parents and other caregivers suffer acute anxiety when caring for their children in the hospital,” said pediatric anesthesiologist Thomas Caruso, MD, senior author of the study. “As part of our mission to provide family-centered care, we should address that.”

But it’s challenging for a busy children’s hospital to offer enough in-person treatment for every parent’s mental health needs, said Caruso, a clinical professor of anesthesiology, perioperative and pain medicine.

“We showed that VR is a reasonable alternative — one that can be widely available, quickly scaled and highly effective, not just for English-speaking families but also for those whose first language isn’t English,” he said.

Transported to a calming environment

In the six-minute guided meditation, the VR headset virtually immerses you in a peaceful mountain scene, showing a creek with a small waterfall, trees and an expanse of sky. The narrator begins by asking that you focus on your breathing, then encourages you to look around at your surroundings. Soft music plays in the background.

As the meditation progresses, the narrator keeps guiding you to take slow, calm breaths. Then she draws attention to the sky as it gradually progresses through twilight. Stars come out; the northern lights appear. Those visuals pulse in a slow rhythm that the narrator suggests you can use to pace your inhalations and exhalations.

As the illusion of “nighttime” continues, clouds of breath appear at the bottom of the field of view in a rhythm you can breathe along to. The narrator continues to talk about the benefits of calm breathing and reminds you that you can always mentally return to the nature scene and bring your focus back to breathing, whenever you need a respite. In this way, the meditation helps build a stress-relief skill that works in a hospital setting.

More benefit for Spanish-speaking families

During the study, 101 parents completed the VR meditation in their preferred language, English or Spanish. They filled out questionnaires before and after the meditation to rate their anxiety levels.

Instead of using the VR meditation, 99 parents in a control group followed their usual tactics for managing anxiety, such as talking to a friend, reading, using their phone or listening to music. They completed the same before-and-after questionnaires about anxiety as parents in the meditation group.

The result: Parents who used meditation reported significantly lower anxiety than the control group that employed their usual anxiety-management activity, and this was still true after controlling for participants’ baseline anxiety levels.

Half of participants were primarily English-speaking and half primarily Spanish-speaking, with speakers of each language evenly divided between the meditation and control groups. Parents who primarily spoke Spanish had a bigger improvement in anxiety after the meditation than those whose first language was English, the study found.

“There are very limited mental health resources for Spanish-speaking populations,” said medical student Ricardo Jimenez, the study’s lead author. “We think the effect was larger because there is a bigger unmet need.”

Jimenez was inspired to work on the research because he grew up helping his Spanish-speaking parents navigate the health care system. As a medical student, he has seen additional ways language barriers can play out: For instance, he said, even though an interpreter may be included in meetings with a child’s medical team, parents who don’t speak English might have difficulty asking their child’s bedside nurse a follow-up question, possibly adding to their anxiety.

After families finished the questionnaires, Jimenez had conversations with many of them about their mental health needs. “They would say, ‘We haven’t heard about meditation as a whole,’” he said. “It would give them a moment to open up with us. It brought a lot of parents to tears.”

Spreading the benefits

The new research is part of larger efforts by the Stanford Medicine Chariot Program to design and study technology-based approaches to treating pain and stress in pediatric care. The team plans to continue studying the benefits of VR-guided meditation for patients’ parents and guardians, in part by conducting more research to learn why different groups find it helpful.

They are also building their library of VR-based mental health materials for a variety of situations, including offering meditations in languages beyond English and Spanish. The VR headsets are now widely available throughout Packard Children’s Hospital, and the researchers are providing clinical staff with information about how to help parents use the equipment.

They also continue to build a wide variety of tools to help kids feel more comfortable in the hospital. Parents’ reactions to their children’s enjoyment of the hospital’s VR tools for reducing anxiety helped inspire the study in the first place, Caruso noted.

“Quite frequently, while we were engaging with a child, parents or caregivers would say ‘Man, I wish we had access to something like this!’” he said. Now they do.

 

Poll reveals short-term thinking about long-term care



High percentages of Americans over 50 hold mistaken beliefs and haven’t taken key actions to prepare for a time when they’ll need help at home or in a facility



Michigan Medicine - University of Michigan

Long-term care preparations by people over 50 

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Percentage of Americans age 50 and over who said they had taken steps to prepare for their long-term health care needs.

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Credit: University of Michigan




Whether they’re counting on Medicare to pay for something it doesn’t currently pay for, thinking they can deal with the issue later, or thinking they won’t need it at all, a new poll reveals major gaps in knowledge and preparation regarding long-term care among Americans aged 50 and over.

Nearly two-thirds (62%) believe Medicare would pay for their care if they needed to permanently move into a nursing home. But Medicare generally doesn’t cover this kind of care. It also doesn’t pay family caregivers to take care of someone at home.

The poll also asked about Medicaid, which pays for nearly two-thirds of all long-term nursing home care and is open to adults with lower incomes. Only 29% of older adults said they expected Medicaid to cover their nursing home costs.

The poll also shows that nearly half (45%) of older adults think their need for long-term care is too far off to think about, 52% aren’t worried about their potential need for long-term care, and 57% think it’s unlikely they’ll ever need such care.

But national statistics show that 70% of people who survive to the age of 65 will need long-term care services in the future, including nursing home or at-home care, or help with medical care and daily tasks such as making and eating meals, dressing and caring for personal hygiene.

The findings come from a new report from the University of Michigan National Poll on Healthy Aging. The poll is based at the U-M Institute for Healthcare Policy and Innovation, and supported by AARP and Michigan Medicine, U-M’s academic medical center.

The poll, designed with help from two U-M geriatrics specialists who study long-term care, also asked adults aged 50 and over if they had taken any one of five key actions to prepare for eventual long-term care needs.

Only half had taken even one of these five key actions, with the most common being designating a durable power of attorney for medical care (27%) and identifying someone in their lives who could be their caregiver (24%).

Most also said that if they did need help with daily activities, they would most prefer to get it in their own home either by family or friends (52%) or by paid caregivers (21%). Fewer said they most prefer to move into an assisted living facility (6%), move in with a family member/friend caregiver (6%) or a nursing home (1%).

The poll also asked if older adults had discussed their long-term care plans and options with a family member or friend. Just over half (52%) said they had.

Differences by age and health status

“These data reveal gaps in what older adults think and want when it comes to long-term care, and what they’ve actually done to prepare,” said Ana Montoya, M.D., M.P.H., M.S., an associate professor of internal medicine at U-M who is a geriatrician and has served as a medical director for nursing homes.

She points to the finding that only 37% of people aged 50 to 64 had taken at least one of the action steps the poll asked about. Answering a separate question, 41% had discussed long-term care plans with someone.

“As the youngest Baby Boomers and older Generation Xers approach age 65, these findings show a special need to help them plan, and find trustworthy information,” she added. “Even among those already over 65 and in their Medicare years, we find a sizable minority have not taken key steps to prepare.”

In all, 66% of those age 65 and over have spoken to anyone about their long-term care plan and 65% have taken at least one of the specific action steps the poll asked about. The remainder had not.

Montoya’s colleague Julie Bynum, M.D., M.P.H., notes that the poll shows that older adults who have a health problem or disability that limits their daily activities are much more likely to say they will eventually need long-term care, at 57% compared with 34% of those without such an issue.

“Worry about long-term care runs especially high among these older adults, who have already experienced limitations to their daily activities,” said Bynum, who is also a geriatrician. “We also found less confidence about planning for long-term care among older adults who say their mental or physical health is fair or poor, compared with those who say they’re in good or excellent health, regardless of disability status.”

Findings about nursing homes and assisted living

Nursing homes did not fare well in older adults’ estimation, with 59% saying they have a mostly negative impression and only 13% saying they have a mostly favorable impression, with the rest being unsure. By comparison, 25% said they have a mostly negative impression of assisted living, and 41% have a mostly positive impression, with the rest unsure.

Whatever their impression, 62% said they aren’t confident they could pay for a nursing home, and 58% said the same about paying for assisted living.

The new report’s authors hope their findings will inform federal and state agencies, and nongovernmental organizations, that are focused on aging. Many states including Michigan are working to implement the No Wrong Door approach developed by federal agencies to help older adults and their families easily get help finding long-term services and supports, or LTSS.

Health care providers who take care of older adults must also play a role, says poll director Jeffrey Kullgren, M.D., M.P.H., M.S., a primary care physician at the VA Ann Arbor Healthcare System and associate professor of internal medicine at U-M.

“The fact that only 5% of older adults had talked with a health care provider about their long-term care plans, and only 27% had formally designated someone to make medical decisions for them if they become unable to do so, suggests we have a tremendous opportunity to help people prepare,” said Kullgren. “Even making advance directives information and forms available on health system websites, like we do at Michigan Medicine and like the VA does, can help improve access and use.”

“This poll shows a troubling disconnect between what older adults think Medicare and Medicaid cover and the reality, one that often delays planning and leaves family caregivers to shoulder the burden,” said Indira Venkat, Senior Vice President of Research at AARP. “AARP is committed to helping people understand their long-term care options and take action early, with trusted tools and resources to support both older adults and their family caregivers.”

In addition to the national poll report, the team compiled data for Michigan adults aged 50 and older compared with those in other states; an interactive data visualization is available at https://michmed.org/ygq7G.

An article summarizing the Michigan findings is available at https://michmed.org/MDy4R. The Michigan Poll on Healthy Aging is sponsored by the Michigan Health Endowment Fund.

IHPI and the Health Fund will host a webinar on May 15 about the Michigan findings. Learn more and register at ihpi.umich.edu/long-term-care-webinar.

The poll findings come from a nationally representative survey conducted by NORC at the University of Chicago for IHPI and administered online and via phone in August 2024 among 3,486 adults ages 50 to 94 across the U.S. The sample was subsequently weighted to reflect the U.S. population. Read past National Poll on Healthy Aging reports and about the poll methodology.

 

A new shape for energy storage: Cone and disc carbon structures offer new pathways for sodium-ion batteries




Rice University
Atin Pramanik 

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Atin Pramanik, a postdoctoral associate in Ajayan’s lab, examines the battery prototype (Credit: Jeff Fitlow/Rice University).

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Credit: Jeff Fitlow/Rice University




As global demand for electric vehicles and renewable energy storage surges, so does the need for affordable and sustainable battery technologies. A new study led by researchers from the Department of Materials Science and NanoEngineering at Rice University, along with collaborators from Baylor University and the Indian Institute of Science Education and Research Thiruvananthapuram, has introduced an innovative solution that could impact electrochemical energy storage technologies. The research was recently published in the journal Advanced Functional Materials.

Using an oil and gas industry’s byproduct, the team worked with uniquely shaped carbon materials — tiny cones and discs — with a pure graphitic structure. These unusual forms produced via scalable pyrolysis of hydrocarbons could help address a long-standing challenge for anodes in battery research: how to store energy with elements like sodium and potassium, which are far cheaper and more widely available than lithium.

“For years, we’ve known that sodium and potassium are attractive alternatives to lithium,” said corresponding author Pulickel Ajayan, the Benjamin M. and Mary Greenwood Anderson Professor of Engineering at Rice. “But the challenge has always been finding carbon-based anode materials that can store these larger ions efficiently.”

Breaking the graphite barrier

Traditional lithium-ion batteries rely on graphite as an anode material. However, the same graphite structure fails when it comes to sodium or potassium. Their atoms are simply too big and interactions too complex to slide in and out of graphite’s tightly packed layers.

But by rethinking the shape of carbon at the microscopic level, the team found a workaround. The cone and disc structures offer curvature and spacing that welcome sodium and potassium ions without the need for chemical doping (the process of intentionally adding small amounts of specific atoms or molecules to change its properties) or other artificial modifications.

“We were surprised to see just how well these pure, curved graphitic structures performed,” said first author Atin Pramanik, a postdoctoral associate in Ajayan’s lab. “Even without heteroatoms, they allowed for reversible intercalation of sodium ions and did so with minimal structural stress.”

Durable, scalable and green

In lab tests, the carbon cones and discs stored about 230 milliamp-hours of charge per gram (mAh/g) using sodium ions, and they still held 151 mAh/g even after 2,000 fast charging cycles. They also worked well with potassium-ion batteries, but the performance wasn’t quite as strong as with sodium.

Advanced imaging techniques like cryogenic transmission electron microscopy and solid-state nuclear magnetic resonance confirmed that ions were entering and exiting the carbon structure as expected and that the material held its shape over thousands of charge-discharge cycles.

“This is one of the first clear demonstrations of sodium-ion intercalation in pure graphitic materials with such stability,” Pramanik said. “It challenges the belief that pure graphite can’t work with sodium.”

The implications are wide ranging. Not only does this pave the way for more affordable sodium-ion batteries, but it also reduces reliance on lithium, which is becoming more expensive and geopolitically complicated to source. And because the cone/disc carbon can be synthesized from oil and gas industry byproducts, it presents a more sustainable route for battery anode production.

A turning point for battery design

While most research in this area has focused on hard carbons or doped materials, the new study marks a pivot in strategy — emphasizing morphology over chemical modification.

“We believe this discovery opens up a new design space for battery anodes,” Ajayan said. “Instead of changing the chemistry, we’re changing the shape, and that’s proving to be just as interesting.”

“We’re not just developing a better battery material,” Pramanik said. “We’re offering a real pathway to energy storage that’s cleaner, cheaper and more widely available to all.”

This research was supported by funding from Omega Power and India’s Department of Science and Technology.

 

Quantum computing paves the way for low-carbon building operations




Higher Education Press
Components of the modeled building energy management system comprising photovoltaic generation module, battery energy storage device, and the building loads. 

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Components of the modeled building energy management system comprising photovoltaic generation module, battery energy storage device, and the building loads.

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Credit: Akshay Ajagekar, Fengqi You





A new study published in Engineering presents an innovative approach to building energy management that combines quantum computing with model predictive control (MPC), aiming to enhance energy efficiency and drive decarbonization in buildings.

Buildings are major energy consumers, contributing significantly to global energy use and greenhouse gas emissions. To address these issues, researchers Akshay Ajagekar and Fengqi You from Cornell University developed an adaptive quantum approximate optimization-based MPC strategy. This strategy is designed for buildings equipped with battery energy storage and renewable energy generation systems, such as photovoltaic (PV) panels.

The heart of the strategy is a learning-based parameter transfer scheme for the quantum approximate optimization algorithm (QAOA). It leverages Bayesian optimization and Gaussian processes to predict initial quantum circuit parameters. This not only reduces the computational burden of QAOA but also enables the system to adapt to changing building states and external disturbances. By treating the MPC problem as a quadratic unconstrained binary optimization (QUBO) problem, the approach can compute optimal controls to minimize a building’s net energy consumption.

The researchers conducted computational experiments using data from two buildings on Cornell University’s campus. They compared the performance of their quantum computing-based MPC strategy with deterministic MPC and quantum annealing. The results showed remarkable improvements. The quantum MPC strategy achieved a 6.8% improvement in energy efficiency compared to deterministic MPC. It also led to a significant annual reduction of 41.2% in carbon emissions by effectively managing battery energy storage and renewable generation sources.

Moreover, the proposed strategy demonstrated good adaptability. It could adjust the heating and cooling loads in response to ambient temperature changes, maintaining indoor comfort while optimizing energy use. In terms of computational efficiency, although the learning-based QAOA required more iterations in the initial exploration phase, the number of iterations decreased rapidly as the system evolved, outperforming quantum annealing in this aspect.

However, the study also acknowledged some limitations. The building energy system model used was relatively simple, and for more complex systems, the increased number of variables might challenge QAOA’s current capabilities. Additionally, while the learning-based approach implicitly handles uncertainties, incorporating uncertainty quantification methods could further enhance the system’s reliability.

Despite these challenges, this research offers a promising direction for future building energy management. Integrating real-time carbon intensity metrics, validating the approach across diverse buildings, extending it to more complex control scenarios, and optimizing quantum algorithms could further improve its performance and practical applicability.

The paper “Decarbonization of Building Operations with Adaptive Quantum Computing-Based Model Predictive Control,” authored by Akshay Ajagekar, Fengqi You. Full text of the open access paper: https://doi.org/10.1016/j.eng.2025.02.002. For more information about Engineering, visit the website at https://www.sciencedirect.com/journal/engineering.

 

Smartphone apps claim to assess hot weather threats. But are they accurate?



New study finds common app underestimates heat, need for activity modifications



University of Georgia




recent study from the University of Georgia found a smartphone application designed to assess heat-related risks frequently reported temperatures that were lower than those recorded through direct on-site measurements.

The app also underestimated the necessity of activity modifications, such as shorter athletic practice schedules, moving physical activities indoors or more frequent water breaks. That could lead to potential safety concerns for athletes, students and other individuals exposed to hot weather conditions.

“Heat is the leading weather killer in the U.S. and among the top three causes of sudden death in sports,” said Andrew Grundstein, lead author of the study and a professor in the UGA Franklin College of Arts and Sciences. “Effective environmental monitoring is essential to protecting communities from the growing risks of extreme heat.”

Accuracy of smartphone apps is variable

Hot weather poses a significant risk for workers, athletes and military personnel participating in outdoor activities. To prevent heat-related illnesses, athletic programs and school districts, among others, regularly monitor local weather conditions and adjust activity levels and rest breaks accordingly.

They typically rely on onsite measurements of wet bulb globe temperature, which accounts for factors such as air temperature, humidity, wind and sunlight. Recently, smartphone applications have begun offering WBGT estimates as well.

“As more heat tracking tools, such as mobile apps, become available, it’s important to assess their accuracy and effectiveness so athletic trainers and other professionals can make informed decisions,” Grundstein said. “The big takeaway is that it’s a good idea for those who want to use an app for heat safety to understand its accuracy and suitability for a particular location.

The present study suggests onsite WBGT measurements are still the most accurate way to safeguard vulnerable populations — at least for now.

App reported temperatures up to 4 degrees cooler in hot weather

Over two months, the research team gathered data from 26 high schools across 11 U.S. states, measuring WBGT on surfaces such as artificial turf and natural grass.

The results show that while the estimates from the smartphone application were generally similar to the onsite measurements, the app often reported cooler temperatures by up to 4 degrees. The app’s accuracy was particularly spotty when WBGT was above 90 degrees, making it less likely to suggest needed activity modifications to keep athletes, students and other vulnerable individuals safe.

The study was published in Geo Health on March 25.

Co-authors on the study include Susan Yeargin, associate professor of Athletic Training, University of South Carolina; Lilly Cargile, UGA department of geography; Jordan Clark, Nicholas Distinguished Professor of Environmental Science, Duke University; Earl Cooper, UGA department of kinesiology; Rebecca Lopez, professor, Athletic Training Program, University of South Florida; Alicia Montalvo, clinical associate professor, College of Health Solutions, Arizona State University; Kevin Miller, professor and athletic trainer, Department of Health and Human Performance, Texas State University; Samantha Scarneo-Miller, assistant professor, School of Medicine, West Virginia University; and Rebecca Stearns, COO, Korey Stringer Institute, Department of Kinesiology, University of Connecticut.