Saturday, October 03, 2020

Black lives also matter in cancer care

It is not biology, but access to health care that is causing Black Non-Hispanic patients with squamous cell cancer of the head and neck to have lower survival rates

UNIVERSITY OF COLORADO ANSCHUTZ MEDICAL CAMPUS

Research News

IMAGE

IMAGE: JESSICA MCDERMOTT, MD, AND SANA KARAM, MD, PHD view more 

CREDIT: CU CANCER CENTER

Studies have long reported that Black cancer patients have poorer outcomes than their white counterparts. But two University of Colorado Cancer Center researchers decided to investigate the data further and figure out why. What they found was that the outcome disparity was caused not by biology, but simply by differences in access to health care.

The researchers, Jessica McDermott, MD, an assistant professor in the Department of Medical Oncology, and Sana Karam, MD, PhD, an associate professor in the Department of Radiation Oncology, examined Medicare data for individuals suffering squamous cell cancer of the head and neck. All 13,117 patients in this study were diagnosed with their first and only malignant tumor at age 66 or older sometime between 2006 and 2015.

The data confirmed what has been widely reported for years ¬- that the Black head and neck cancer patients had worse outcomes than the white cancer patients.

"But then when we controlled for access to care, those differences suddenly disappeared," says McDermott. "When you closely examine the data, it becomes clear what is going on."

Their findings were published this week in the Journal of the National Comprehensive Cancer Network. The physicians hope their research will catch the attention of those who can help narrow those disparate outcomes.

McDermott and Karam identified two major differences for Black patients: first, they presented at later stages of cancer, and second, they were less likely to receive treatment.

"This is an interesting finding," says McDermott. "A lot of the reasons driving the disparate outcomes came down to socially related things - they were less likely to be married, lived in poor areas, had comorbidities [presence of two or more chronic diseases], were less likely to see a primary care provider in the year leading up to the diagnosis, and were more likely to present in the emergency room."

For most cancers, where and when a patient first presents can make a large difference both in the care received and in the outcome.

"Just a reminder that we are talking about a curable disease, a disease that, if treated properly, can be eradicated with a high degree of certainty," says Karam. "I hope that more targeted interventions can be developed as a result of our findings. The problem lies not so much in biological differences, but access. If Black patients get the treatment, they do just as well."

A teaching and research hospital like the University of Colorado can lead the way in improving the care of underserved communities.

"Like many other tertiary care centers, we have a great number of clinical trials, but not everyone who could benefit from them enjoys access," says Karam. "We need to enhance our ability to deliver more broadly the best and newest trials that can extend life and decrease symptom burden."

Black lives matter

The disparities that Black community members face are gaining national attention after the deaths of George Floyd and other Black men and women. But one area of inequity that has not received as much attention is access to medical care. Last month, dozens of providers gathered at the Anschutz Medical Campus to support a national movement by kneeling with fellow White Coats for Black Lives members.

"Speaking up is an important first step towards change," says Karam. "But it must be accompanied by policy change aimed at expanding access to care. We invest billions in new therapies that might or might not work but devote far less attention to helping our socially challenged patients get through the door, which our study shows does work."

The doctors say that more work is needed to overcome hurdles to health care access.

"We also need to educate the next generation of doctors on showing compassion and sensitivity to issues of race, income, social challenges, addiction, and other access barriers," says Karam.

What the CU Cancer Center is doing to help

Prior to this study's publication, Dr. McDermott was awarded a grant from the CU Cancer Center Office of Community Outreach and Engagement to increase the representation of the Hispanic populations in head and neck cancer clinical trials. Colorado has a large population of Hispanics, which makes that population an easier place to begin making changes.

"Our goal is to use that project to branch out to Hispanics, Blacks, and anyone else with socioeconomic issues that currently compromise their access to care," says McDermott.

The CU Cancer Center will continue studying the health disparities for different types of cancer and investigating strategies for eliminating the barriers faced by those needing care.

###




Not all patients are offered the same effective breast cancer treatment

Socioeconomic status and race could play a role in treatment decisions, according to new research.

THOMAS JEFFERSON UNIVERSITY

Research News

Breast cancer is one of the most common cancers among women in the U.S. It's also the most costly cancer to treat. Now, Jefferson researchers have shown that although the use of an effective and less expensive treatment is on the rise, some patients, specifically Black women and those without private insurance are offered the beneficial therapy less often. The findings pave the way for reducing healthcare costs and increasing patient satisfaction.

"We have identified patient populations at risk of not receiving a beneficial and more cost-effective therapy," says Dr. Alliric Willis, a surgical oncologist and associate professor of surgery at Sidney Kimmel Medical College (SKMC) - Jefferson Health, who led the study along with his research team from SKMC and the College of Population Health at Thomas Jefferson University.

"This research really illustrates that not all patients are being treated equally," says Dr. Willis, who published the results online September 12, 2020 in the International Journal of Radiation Oncology Biology Physics, also known as the Red Journal.

Standard breast-conserving cancer treatment involves surgery followed by radiation therapy, which helps to lower the risk of cancer recurring in the treated breast. Traditionally, patients receive 25 to 30 daily radiation treatments over five to six weeks. In recent years, however, doctors have begun using an alternative radiation treatment plan known as hypofractionated whole breast radiation (HR).

HR uses a higher radiation dose per treatment than the traditional regimen. The higher dose means patients require about half as many treatment sessions -15 to 16 treatments over three to four weeks - to achieve the same total dose. Compared with traditional radiation therapy, the approach is just as effective at reducing the risk of the cancer returning, more cost-effective and offers patients fewer side effects and better breast restoration outcomes following treatment.

"Despite the fact that both patients and practitioners say they prefer hypofractionated radiation because of its efficacy and better cosmetic outcomes, HR use in the U.S., while increasing, has lagged for particular groups," Dr. Willis says.

To better understand who is at risk of missing out on the valuable therapy, Dr. Willis and colleagues turned to the National Cancer Database. The researchers examined data from nearly 260,000 early-stage breast cancer patients over 40 years old who were diagnosed between 2012 and 2016. All patients studied had received radiation treatment following breast conserving surgery. The researchers looked at demographics, tumor attributes and treatment facility characteristics between patients who received either HR or traditional radiation.

The investigation revealed that HR use increased over the four-year study period, from about a quarter of eligible patients in 2012 to more than two-thirds in 2016. Despite the upward trend, the analysis uncovered marked disparities among those who received HR therapy. Patients who identified as white were most likely to receive HR, whereas HR use was lowest for African Americans, for example.

"When we took all other factors into account, African American women were 15% less likely to be treated with HR than white women," Dr. Willis says. "This demonstrates that even though treatment guidelines do not take race into account, race is a factor in breast cancer treatment."

Socioeconomic status also affected those who received HR therapy. Patients with private insurance were more likely to receive HR than uninsured patients or those on Medicaid, according to the study. In addition, patients who lived in zip codes with the highest income levels were 25% more likely to undergo HR than patients from zip codes in the lowest income category.

Where patients sought care made a difference in their treatment, too. Treatment facilities associated with academic medical centers were twice as likely to use HR as community cancer or integrated network cancer facilities.

"This tells us that there is a need to actively communicate information to healthcare providers about the spectrum of treatment options across all treatment facility types," Dr. Willis says.

Dr. Willis hopes that this research will shine light on treatment inconsistencies and motivate physicians to expand their treatment repertoire.

"Patients should have access to all treatment options no matter their race, socioeconomic background or where they seek care," he says. "Hopefully, our research will help to address gaps in provider education and extend this favorable treatment to all patients."

###

Article reference: Steven G. Woodward, MD, Karan Varshney, Pramilla R. Anne, MD, Brandon J. George, PhD, MS, Alliric I. Willis, MD, FACS, "Trends in Utilization of Hypofractionated Whole Breast Radiation in Breast Cancer: An Analysis of the National Cancer Database," The International Journal of Radiation Oncology Biology Physics DOI: 10.1016/j.ijrobp.2020.09.004, 2020.

New research explores how multinational firms can manage corruption

Findings from Lehigh University College of Business professor provides unique insights on ways multinational firms can manage corruption

LEHIGH UNIVERSITY

Research News

IMAGE

IMAGE: CHARLES E. STEVENS IS AN ASSOCIATE PROFESSOR OF MANAGEMENT IN LEHIGH UNIVERSITY'S COLLEGE OF BUSINESS view more 

CREDIT: CHARLES STEVENS/LEHIGH UNIVERSITY

For many developing countries, it is difficult to break the cycle of corruption on their own. Historically, multinational firms have assumed that they have two options available when dealing with corruption in developing countries: "play the game," meaning pay bribes or engage in corrupt activities, or "leave the table" by avoiding investing in countries where corruption is widespread. New research from Charles E. Stevens, associate professor of management in Lehigh's College of Business, shows firms taking a third approach-managing corruption by promoting positive engagement with the host country.

The study, "Avoid, acquiesce ... or engage? New insights from sub-Saharan Africa on MNE strategies for managing corruption," funded by a Social Sciences and Humanities Research Council of Canada grant, is published in the latest issue of Strategic Management Journal.

Using an inductive, qualitative research design, Stevens, in collaboration with Aloysius Newenham-Kahindi, associate professor at the University of Victoria, was able to better understand how and why issues relating to corruption arose and how firms dealt with them. According to Stevens, firms may typically "tread lightly," but his research shows firms having success by making deeper, long-term commitments.

"Within the last decade, a number of developing country firms, many of them from China, were taking a different approach that we termed an engagement strategy that, in many ways, was unexpected and counter-intuitive because it tended to involve greater commitment and greater investment to countries where there was more corruption," said Stevens.

Stevens and Newenham-Kahindi were curious to see if these firms were less concerned with corruption, but research found that was not the case.

"Many of these firms were following rather interesting and complex strategies, many that involved multiple actors that were designed at minimizing the ability of host-country actors to request bribes by maximizing their bargaining power or by minimizing the motivation of host-country actors to request bribes by increasing their legitimacy," explained Stevens.

Facing challenges related to studying corruption due to the illegal activity often being hidden, Stevens and Newenham-Kahindi surveyed those who experience dealing with corruption directly. Among those interviewed for the study were 445 individuals representing industries such as construction, mining, manufacturing, energy, and telecommunications in both developed and developing country firms; 126 host country government officials and employees; 34 local private sector employees; 44 local institutional researchers; and 142 members of the general public.

According to Stevens, this paper fills an important gap in corruption literature by increasing the understanding of the options and strategies that firms have at their disposal when they invest in countries where corruption is a greater problem.

With this study, the researchers are hoping to change policies and practices by both firms and governments.

"We hope that this research allows firms, governments, and the general public to achieve economic prosperity, reduce corruption, and create mutually-beneficial solutions through investment and growth," said Stevens. "Firms shouldn't automatically be afraid to invest in countries where risks like corruption are present. Such countries present many challenges, but for firms that go in with a comprehensive plan, are prepared to make a long-term commitment, and find ways to leverage partnerships with governments and other firms, the rewards can be worth the risks."

###

 

Invasion by non-native insects expected to increase 36 percent worldwide by 2050

Europe in line for greatest biological invasion, followed by Asia and the Americas

USDA FOREST SERVICE - NORTHERN RESEARCH STATION

Research News

IMAGE

IMAGE: NEW RESEARCH BY AN INTERNATIONAL TEAM OF SCIENTISTS SUGGESTS THAT WORLDWIDE, INVASION BY NON-NATIVE INSECTS WILL INCREASE 36 PERCENT BY 2050. PHOTOGRAPH SHOWS AN EMERALD ASH BORER, A NON-NATIVE INSECT... view more 

CREDIT: LEAH BAUER, USDA FOREST SERVICE

Research by an international team of scientists found that the steady, centuries-long increase in insect invasions globally is likely to continue. Using a new modelling approach to simulate non-native insect species numbers on continents for different taxonomic groups based on observed long-term historic trends, scientists established that biological invasions will increase by 36 percent between 2005 and 2050.

Modeling suggests that Europe is likely to experience the strongest biological invasions, followed by Asia, North America and South America.

The study delivers a first baseline for the assessment of future developments of biological invasions, information that will support decision-making related to containing the spread of alien species. Andrew Liebhold, a USDA Forest Service research entomologist based in West Virginia and the study's only North American co-author, describes the research as an important tool in allowing a shift from a reactionary stance to a proactive stance in defending against biological invasion.

"For centuries, the element of surprise has worked in favor of invasive pests," Liebhold said. "Because we were not anticipating these insects, and not monitoring for them, many have been well established and causing damage by the time we did find them. This research gives nations the opportunity to play offense instead of defense by identifying where invasions are likely and what species are most likely to invade."

###

The study, "Projecting the continental accumulation of alien species through to 2050," was published this week in the journal Global Change Biology. In addition to Liebhold, the research team included lead author Hanno Seebens of Senckenberg of the Biodiversity and Climate Research Centre in Germany and scientists from Germany, Switzerland, the United Kingdom, Portugal, South Africa, Austria, Italy, New Zealand, China, and the Czech Republic. The study is available through the Northern Research Station at: https://www.nrs.fs.fed.us/pubs/61296

 

Would menthol cigarettes be banned if the typical consumer was young, white and upper-middle class?

A new paper highlights menthol cigarettes as a social justice issue

COLUMBIA UNIVERSITY'S MAILMAN SCHOOL OF PUBLIC HEALTH

Research News

October 1, 2020 -- Menthol could be exacerbating deep social inequities according to a paper just published in Nicotine & Tobacco Research. Researchers at Columbia University Mailman School of Public Health and colleagues at CUNY and Rutgers School of Public Health suggest that a ban on menthol cigarettes could have monumental implications for both the short- and long-term physical and mental health of communities of color.

"Assessing menthol smoking status should be a priority in all substance use research and smoking cessation interventions," observed Renee Goodwin, PhD, an epidemiologist at Columbia Mailman School, and senior author. "A decade after Congress exempted menthol from the flavored cigarette ban, preference for menthol remains more popular among young smokers and extremely high among Black smokers."

Overall estimates indicate that over 630,000 deaths would be averted and that one of three of these would be a Black life if menthol was included in the flavored cigarette ban.

Using data from the most recent National Survey on Drug Use and Health (NSDUH), the analysis showed that 10 years after the exemption of menthol from the ban, its preference among cigarette smokers remains inversely correlated with age and race. Among black smokers, 85 percent had a preference for menthol cigarettes while only 29 percent of Non-Hispanic Whites expressed the same penchant.

According to Goodwin, in the context of inaction on menthol, young people and Black smokers are not the only vulnerable populations that warrant attention with respect to menthol smoking. Preference for menthol among cigarette smokers was also disproportionately high among lesbian and gay smokers (51 percent), bisexual smokers (46 percent), and smokers with mental health problems (45 percent). The analyses also highlighted disproportionately high percentages among socioeconomically disadvantaged populations and pregnant women.

"The menthol loophole and subsequent inaction on menthol comes down to policy makers, political influence, and power," noted Cristine Delnevo of Rutgers and the first author. "For decades, tobacco companies have been targeting marginalized populations with advertising for menthol cigarettes. It's clear that a ban on menthol is not only necessary for the protection of public health, but also to achieve health equity in the U.S."

###

The work was supported by the National Heart, Lung, and Blood Institute (R21 HL149773-01) and the Tobacco Centers of Regulatory Science, National Cancer Institute, and the U.S. Food and Drug Administration (U54CA229973).

A co-author is Ollie Ganz, Rutgers School of Public Health.

About Columbia University Mailman School of Public Health

Founded in 1922, the Columbia University Mailman School of Public Health pursues an agenda of research, education, and service to address the critical and complex public health issues affecting New Yorkers, the nation and the world. The Columbia Mailman School is the seventh largest recipient of NIH grants among schools of public health. Its nearly 300 multi-disciplinary faculty members work in more than 100 countries around the world, addressing such issues as preventing infectious and chronic diseases, environmental health, maternal and child health, health policy, climate change and health, and public health preparedness. It is a leader in public health education with more than 1,300 graduate students from 55 nations pursuing a variety of master's and doctoral degree programs. The Columbia Mailman School is also home to numerous world-renowned research centers, including ICAP and the Center for Infection and Immunity. For more information, please visit http://www.mailman.columbia.edu.

 

A social-belonging intervention improves STEM outcomes for ESL students

INDIANA UNIVERSITY

Research News

IMAGE

IMAGE: A SOCIAL-BELONGING INTERVENTION IMPROVES STEM OUTCOMES FOR STUDENTS WHO SPEAK ENGLISH AS A SECOND LANGUAGE. view more 

CREDIT: PROVIDED BY INDIANA UNIVERSITY

A study conducted at 19 universities by IU researchers and their colleagues in the U.S. and Canada, found that a brief social belonging exercise, administered online before students arrive on campus, boosts the performance and persistence of students in STEM disciplines - science, technology, engineering and math - who speak English as a second language.

Published this week in the journal Science Advances, the study demonstrates that the exercise increases ESL students' perception that a sense of belonging on campus will grow over time. It also increases the number of STEM credits ESL students successfully completed, as well as their STEM GPAs.

As Jennifer LaCosse, an IU post-doctoral researcher and lead author on the study, explained, ESL students are greatly underrepresented in U.S. colleges, particularly within STEM fields, and their absence is a disadvantage both to the students themselves and the economy more broadly. Having a college degree, particularly in STEM fields, gives ESL students the opportunity to have higher paying jobs and more successful careers overall. It also creates a diverse and multilingual workforce that is needed to meet the needs of an increasingly globalized economy.

Results of the study suggest that one way to increase the representation and academic success of ESL students in STEM is to target their sense of belonging. "Students often ask themselves, 'Do I belong here?' and we know that this concern can undermine academic performance and persistence," said LaCosse.

Students who speak English as a second language often report concerns about not fitting in with native English-speaking students and a lack of social connections. In addition, many are required to pass language proficiency tests or enroll in special ESL courses during their first few years of college.

"These policies can metaphorically and literally separate ESL students from non-ESL students during the pivotal transition to college when feelings of belonging are critical," said LaCosse. "Finding ways of buttressing ESL students' feelings of belonging may be essential to their academic success--which is what we wanted to examine in our research."

The study utilized data collected at 19 universities from more than 12,000 STEM students by the College Transition Collaborative, a partnership co-founded by IU social psychologist and study co-author Mary Murphy. Students in the study who were randomly assigned to receive the social belonging treatment, read short stories attributed to juniors and seniors describing the challenges they faced in their transition to college. The students in the stories initially questioned the degree to which they belonged in college; and yet, with time they ultimately developed a greater sense of belonging. Study participants followed the readings with a writing exercise about their own experiences.

Results of the study revealed that both ESL and non-ESL students who received the social belonging exercise anticipated greater growth in their sense of belonging than students who received the control treatment. However, these psychological gains in belonging only bolstered the academic persistence and performance of ESL students. Specifically, STEM-interested ESL students who received the social-belonging exercise (vs. the control group, which did not) completed more of the STEM courses that they began in their first term in college--and this effect persisted through the first year. ESL students who completed the social belonging exercise also earned higher STEM GPAs in Term 1 than did their ESL peers who did not.

"People do not often think about ESL students as a disadvantaged group in the same way they do about other disadvantaged students, such as Black or women students," observed LaCosse. "The results of this study, however, provide rigorous empirical evidence that ESL students have similar psychological experiences to these other disadvantaged students."

As co-author Mary Murphy, IU professor of psychological and brain sciences noted, "Because of the large sample size across so many universities this is one of the first studies to quantitatively examine and mitigate this important psychological barrier for ESL students in STEM fields as they begin college."

"The findings are really exciting," said LaCosse, "because ESL students' psychological experiences in higher education have received far less attention than they deserve. Our research suggests that we need to rethink the policies and practices that are in place that create and maintain the underrepresentation of ESL students in higher education."

###

In addition to LaCosse and Murphy, other researchers on the team were Elizabeth Canning, assistant professor of psychology at Washington State University and former IU postdoctoral researcher in Murphy's lab; Nicholas Bowman, professor of education at the University of Iowa; and Christine Logel, associate professor of social development studies at Waterloo University.

Funding for the study was provided by the Raikes Foundation, the National Science Foundation, the Higher Education Quality Council of Ontario, and partner schools.

 

A factor limiting recovery from bleaching in corals

NATIONAL INSTITUTES OF NATURAL SCIENCES

Research News

IMAGE

IMAGE: FLUORESCENT PHOTOGRAPHS OF AIPTASIA POLYPS 3 DAYS AFTER CULTURING WITH SYMBIONT CELLS IN DIFFERENT TREATMENTS, NEITHER SYMBIONTS NOR POLYPS EXPOSED TO HIGH TEMPERATURE (32?°C) FOR 3 DAYS (LEFT), ONLY SYMBIONTS... view more 

CREDIT: NIBB

Increases in seawater temperature can cause coral bleaching through the loss of symbiotic algae. Corals can recover from bleaching by recruiting algae into host cells from the residual symbiont population or from the external environment. However, the high coral mortality that often follows mass-bleaching events suggests that recovery is limited in the wild.

A joint research team from the National Institute for Basic Biology (NIBB), Tohoku University in Japan, and James Cook University in Australia has examined the effect of pre-exposure to heat stress on the capacity of symbiotic algae to infect cnidarian hosts using the Aiptasia (sea-anemone)-zooxanthellae (algae) model system. They discovered that the symbiotic algae lose their capacity to infect the host once they are exposed to heat stress. These results suggest that recovery from bleaching can be limited by the loss of symbiont infectivity following bleaching-inducing heat stress.

Coral reefs are the cornerstone of biologically enriched coral reef ecosystems, but their existence is in danger due to global change and warming. Coral-algae symbiosis is sensitive to increased seawater temperature, resulting in coral bleaching through loss of the algal symbionts, zooxanthellae. Corals can recover from bleaching by recruiting algae into their cells from the residual symbiont population or from the external environment. However, in the field, recovery from bleaching is often limited, resulting in mortality of corals due to starvation.

In a study published in The ISME Journal, graduate student of the National Institute for Basic Biology, Mariko Kishimoto, focused on the ability of symbiotic algae to infect the host following to heat stress and identified a factor limiting recovery from bleaching.

"In this study, we used Aiptasia (sea-anemone), instead of corals, as Aiptasia are very easy to maintain and use for experiments in the laboratory. And importantly, Aiptasia form the symbiotic relationship with the symbiotic algae, zooxanthellae, and also show bleaching under heat stress like corals do." Ms. Kishimoto said.

Symbiotic algae (CS-164) were cultured at 25 ºC or 32 ºC for 3 days and then their infectivity was tested at 25 ºC by counting the number of symbiotic algae in Aiptasia tentacles.

"The infectivity of algae was apparently lost after culturing at 32 ºC."

"Importantly, culturing Aiptasia, instead of algae, at 32 ºC did not influence infectivity."

"So our results showed that recovery from bleaching can be limited by the loss of symbiont infectivity following bleaching-inducing heat stress.", Ms. Kishimoto said.

Further study showed incubation at 32 ºC was non-lethal for the symbiotic algae which showed recovery of the loss of infectivity after culturing at optimal growth conditions.

The team also found that a different algal strain (CCMP2459) did not lose their infectivity after exposure to heat stress.

Associate Professor Shunichi Takahashi of the National Institute for Basic Biology, who led the research team, said, "Our findings suggest that heat tolerant algal symbionts might give a chance for bleached corals to recover".

###

The ISME Journal
"Loss of symbiont infectivity following thermal stress can be a factor limiting recovery from bleaching in cnidarians" by Mariko Kishimoto, Andrew H. Baird, Shinichiro Maruyama, Jun Minagawa, Shunichi Takahashi
DOI: https://doi.org/10.1038/s41396-020-00742-8

 

Why writing by hand makes kids smarter

Writing by hand creates much more activity in the sensorimotor parts of the brain, researchers found.

NORWEGIAN UNIVERSITY OF SCIENCE AND TECHNOLOGY

Research News

IMAGE

IMAGE: TYPING, CLICKING AND WATCHING OCCUPY AN INCREASING NUMBER OF HOURS IN THE AVERAGE CHILD'S DAY. BUT BRAIN RESEARCH SHOWS THAT WRITING BY HAND HELPS PEOPLE REMEMBER BETTER AND LEARN MORE.... view more 

CREDIT: NTNU/MICROSOFT

Professor Audrey van der Meer at NTNU believes that national guidelines should be put into place to ensure that children receive at least a minimum of handwriting training.

Results from several studies have shown that both children and adults learn more and remember better when writing by hand.

Now another study confirms the same: choosing handwriting over keyboard use yields the best learning and memory.

Van der Meer and her colleagues have investigated this several times, first in 2017 and now in 2020.

In 2017, she examined the brain activity of 20 students. She has now published a study in which she examined brain activity in twelve young adults and twelve children.

This is the first time that children have participated in such a study.

Both studies were conducted using an EEG to track and record brain wave activity. The participants wore a hood with over 250 electrodes attached.

The brain produces electrical impulses when it is active. The sensors in the electrodes are very sensitive and pick up the electrical activity that takes place in the brain.

Handwriting gives the brain more hooks to hang memories on

Each examination took 45 minutes per person, and the researchers received 500 data points per second.

The results showed that the brain in both young adults and children is much more active when writing by hand than when typing on a keyboard.

"The use of pen and paper gives the brain more 'hooks' to hang your memories on. Writing by hand creates much more activity in the sensorimotor parts of the brain. A lot of senses are activated by pressing the pen on paper, seeing the letters you write and hearing the sound you make while writing. These sense experiences create contact between different parts of the brain and open the brain up for learning. We both learn better and remember better," says Van der Meer.

She believes that her own and others' studies emphasize the importance of children being challenged to draw and write at an early age, especially at school.

Today's digital reality is that typing, tapping and screen time are a big part of children's and adolescents' everyday lives.

A survey of 19 countries in the EU shows that Norwegian children and teens spend the most time online. The smartphone is a constant companion, followed closely by the PC and tablet.

https://www.lse.ac.uk/media-and-communications/assets/documents/research/eu-kids-online/reports/EU-Kids-Online-2020-10Feb2020.pdf

The survey shows that Norwegian children ages 9 to16 spend almost four hours online every day, double the amount since 2010.

Kids' leisure time spent in front of a screen is now amplified by schools' increasing emphasis on digital learning.

Van der Meer thinks digital learning has many positive aspects, but urges handwriting training.

"Given the development of the last several years, we risk having one or more generations lose the ability to write by hand. Our research and that of others show that this would be a very unfortunate consequence" of increased digital activity, says Meer.

She believes that national guidelines should be put in place that ensure children receive at least a minimum of handwriting training.

"Some schools in Norway have become completely digital and skip handwriting training altogether. Finnish schools are even more digitized than in Norway. Very few schools offer any handwriting training at all," says Van der Meer.

In the debate about handwriting or keyboard use in school, some teachers believe that keyboards create less frustration for children. They point out that children can write longer texts earlier, and are more motivated to write because they experience greater mastery with a keyboard.

"Learning to write by hand is a bit slower process, but it's important for children to go through the tiring phase of learning to write by hand. The intricate hand movements and the shaping of letters are beneficial in several ways. If you use a keyboard, you use the same movement for each letter. Writing by hand requires control of your fine motor skills and senses. It's important to put the brain in a learning state as often as possible. I would use a keyboard to write an essay, but I'd take notes by hand during a lecture," says Van der Meer.

"The brain has evolved over thousands of years. It has evolved to be able to take action and navigate appropriate behaviour. In order for the brain to develop in the best possible way, we need to use it for what it's best at. We need to live an authentic life. We have to use all our senses, be outside, experience all kinds of weather and meet other people. If we don't challenge our brain, it can't reach its full potential. And that can impact school performance," says Van der Meer.

###

Reference: The Importance of Cursive Handwriting Over Typewriting for Learning in the Classroom: A High-Density EEG Study of 12-Year-Old Children and Young Adults.

Eva Ose Askvik, F. R. (Ruud) van der Weel and Audrey L. H. van der Meer. Front. Psychol., 28 July 2020 | https://doi.org/10.3389/fpsyg.2020.01810

800 million children still exposed to lead

UNICEF study documents a persistent, dangerous problem

NORWEGIAN UNIVERSITY OF SCIENCE AND TECHNOLOGY

Research News

As many as 800 million children have dangerously high lead values in their blood. The neurotoxin can cause permanent brain damage.

The huge international numbers come from a new report from Pure Earth and UNICEF. Pure Earth works to solve pollution problems that can be harmful to humans.

"A child's earliest years of life are characterized by rapid growth and brain development. This makes children particularly vulnerable to harmful substances in the environment," says Kam Sripada, a postdoc at the Norwegian University of Science and Technology (NTNU) who has contributed to the report.

Sripada collaborates with international organizations to research social health inequalities, especially among children.

"Exposure to lead during pregnancy and early in life can lead to a child never reaching his or her potential," she says.

Sripada works at NTNU's Center for Global Health Inequalities Research (CHAIN) in collaboration with the Norwegian Institute of Public Health and UNICEF.

Lead is an element, but also a powerful neurotoxin that can cause damage at a level as low as five micrograms of lead per decilitre of blood. Lead poisoning can be acute, and can cause everything from stomach pain to brain damage, coma and death.

But lead poisoning can also come on slowly, because it accumulates in the body over a long period of time. The most common symptom is lethargy due to anaemia. High lead levels can attack blood and bone marrow, the nervous system and the kidneys.

Lead poisoning can also contribute to a lower IQ and behavioural problems that can last a lifetime.

"Lead is a health threat to children in every single country in the world. However, children in low- or middle-income countries are the most vulnerable, especially in South Asia and among marginalized groups in general. There are major social differences when it comes to lead exposure and other environmental toxins that we need to address," says Sripada.

A lot of the lead comes from lead-acid batteries that are not responsibly recycled. The number of motor vehicles has tripled in low- and middle-income countries in the last 20 years, which in turn has led to a sharp increase in lead-containing batteries. About half of the batteries are not properly recycled or recovered.

Water pipes, industry, paint and a number of household products such as canned foods, contaminated spices, make-up and toys also contribute. Lead that was previously used in gasoline is still found in the soil to this day.

Indirectly, countries can suffer enormous income losses as the children grow up with these sources of lead exposure. As adults, they often are not able to contribute optimally to the societal economy.

"This is a report with global significance," says NTNU Professor Terje Andreas Eikemo, who heads CHAIN.

Both the World Health Organization (WHO) and the Centers for Disease Control and Prevention in the United States believe that the situation requires international measures, such as more information and strengthening of the health care system in several countries.

"This report shines the spotlight on lead as an important global environmental and health problem that is especially tied to children's health and development," says Heidi Aase, who heads the NeuroTox study at the Norwegian Institute of Public Health.

The NeuroTox study examines relationships between environmental toxins in the mother's womb, including lead, and various measures of brain development. ADHD, autism and cognitive functions are considered in a large sample of Norwegian children. Environmental toxins found in the mother's body during pregnancy can affect the baby's development.

CHAIN will use the NeuroTox study to study relationships between socio-economic factors, such as income, education and living conditions, and levels of lead and other environmental toxins in pregnant women and their children.

"The UNICEF report and other studies show that poverty is associated with higher lead levels and an increased risk of harmful effects on health. We'll investigate whether this picture applies to pregnant women and children in Norway as well," says Aase.

The research results from NeuroTox and CHAIN can also be used in different ways internationally, such as to prevent social inequality in health including the harmful effects of environmental toxins.

The average blood levels of lead in children from low- and middle-income countries in the UNICEF report are far higher than in Norwegian children. Nevertheless, the report has calculated that many Norwegian children may have lead levels above the limit that we know has harmful effects on brain development.

"This is concerning," says NeuroTox researcher Gro Dehli Villanger.

Studies show that damage to the brain and nervous system can occur at far lower lead levels than the limit used in the report.

"As of today, no value limit has been established that is considered safe and therefore the number of children affected could be much higher both in Norway and in other countries," says Villanger.

Source: The toxic truth. Children's exposure to lead pollution undermines a generation of future potential. https://www.unicef.org/reports/toxic-truth-childrens-exposure-to-lead-pollution-2020

###

 

Decent living for all does not have to cost the Earth

UNIVERSITY OF LEEDS

Research News

Global energy consumption in 2050 could be reduced to the levels of the 1960s and still provide a decent standard of living for a population three times larger, according to a new study.

The study led by the University of Leeds has estimated the energy resource needed for everyone to be provided decent living standards in 2050 - meaning all their basic human needs such as shelter, mobility, food and hygiene are met, while also having access to modern, high quality healthcare, education and information technology.

The findings, published in in the journal Global Environmental Change, reveal that decent living standards could be provided to the entire global population of 10 billion that is expected to be reached by 2050, for less than 40% of today's global energy. This is roughly 25% of that forecast by the International Energy Agency if current trends continue.

This level of global energy consumption is roughly the same as that during the 1960s, when the population was only three billion.

The authors emphasise that achieving this would require sweeping changes in current consumption, widespread deployment of advanced technologies, and the elimination of mass global inequalities.

However, not only do the findings show that the energy required to provide a decent living could likely be met entirely by clean sources, but it also offers a firm rebuttal to reactive claims that reducing global consumption to sustainable levels requires an end to modern comforts and a 'return to the dark ages'.

The authors' tongue in cheek response to the critique that sweeping energy reform would require us all to become 'cave dwellers' was: "Yes, perhaps, but these are rather luxurious caves with highly-efficient facilities for cooking, storing food and washing clothes; comfortable temperatures maintained throughout the year, computer networks -- among other things -- not to mention the larger caves providing universal healthcare and education to all 5-19 year olds."

The study calculated minimum final energy requirements, both direct and indirect, to provide decent living standards. Final energy is that delivered to the consumer's door, for example, heating, electricity or the petrol that goes into a car, rather than the energy embedded in fuels themselves - much of which is lost at power stations in the case of fossil fuels.

The team built a final energy-model, which builds upon a list of basic material needs that underpin human well-being previously developed by Narasimha Rao and Jihoon Min.

The study compared current final energy consumption across 119 countries to the estimates of final energy needed for decent living and found the vast majority of countries are living in significant surplus. In countries that are today's highest per-capita consumers, energy cuts of nearly 95% are possible while still providing decent living standards to all.

Study lead author Dr Joel Millward-Hopkins from the School of Earth and Environment at Leeds said: "Currently, only 17% of global final energy consumption is from non-fossil fuel sources. But that is nearly 50% of what we estimate is needed to provide a decent standard of living for all in 2050."

"Overall, our study is consistent with the long-standing arguments that the technological solutions already exist to support reducing energy consumption to a sustainable level. What we add is that the material sacrifices needed to for these reductions are far smaller than many popular narratives imply."

Study co-author Professor Julia Steinberger leader of the Living Well Within Limits project at the University Leeds and professor at the Université de Lausanne in Switzerland said: "While government official are levelling charges that environmental activists 'threaten our way of life' it is worth re-examining what that way of life should entail. There has been a tendency to simplify the idea of a good life into the notion that more is better.

"It is clearly within our grasp to provide a decent life for everyone while still protecting our climate and ecosystems."

Study co-author Professor Narasimha Rao from Yale University said: "This study also confirms our earlier findings at a global scale that eradicating poverty is not an impediment to climate stabilization, rather it's the pursuit of unmitigated affluence across the world."

Study co-author Yannick Oswald, PhD researcher at the School of Earth and Environment at Leeds said: "To avoid ecological collapse, it is clear that drastic and challenging societal transformations must occur at all levels, from the individual to institutional, and from supply through to demand."

###

Further information:

The paper Providing "Decent Living with Minimum Energy: A Global Scenario" was published in Global Environmental Change on 29 September 2020

For additional information contact University of Leeds press officer a.harrison@leeds.ac.uk

University of Leeds

The University of Leeds is one of the largest higher education institutions in the UK, with more than 38,000 students from more than 150 different countries, and a member of the Russell Group of research-intensive universities. The University plays a significant role in the Turing, Rosalind Franklin and Royce Institutes.

We are a top ten university for research and impact power in the UK, according to the 2014 Research Excellence Framework, and are in the top 100 of the QS World University Rankings 2021.

The University was awarded a Gold rating by the Government's Teaching Excellence Framework in 2017, recognising its 'consistently outstanding' teaching and learning provision. Twenty-six of our academics have been awarded National Teaching Fellowships - more than any other institution in England, Northern Ireland and Wales - reflecting the excellence of our teaching. ?http://www.leeds.ac.uk

Follow University of Leeds or tag us in to coverage: Twitter Facebook LinkedIn Instagram

 

How scientific leaders can enact anti-racist action in their labs

Researchers lay out 10 guidelines to help scientists who are new to anti-racist work

PLOS

Research News

IMAGE

IMAGE: AUTHOR BALA CHAUDHARY AT WORK. CHAUDHARY TEACHES ENVIRONMENTAL SCIENCE AND LEADS A RESEARCH GROUP THAT STUDIES MYCORRHIZAS, BENEFICIAL PLANT-FUNGAL SYMBIOSES, AND THEIR BELOWGROUND ECOLOGY. view more 

CREDIT: JAMIE MONCRIEF

A new paper provides 10 steps that principal investigators (PIs) and research group leaders can follow to help cultivate anti-racist professional and learning environments. V. Bala Chaudhary of DePaul University, Chicago, and Asmeret Asefaw Berhe of U.C. Merced present these guidelines in the open-access journal PLOS Computational Biology.

The science, technology, engineering, and mathematics (STEM) workforce exhibits disproportionately low racial and ethnic diversity due to a variety of factors that include bias, discrimination, and power imbalances within academia. The STEM community increasingly recognizes low representation of Black, Indigenous, and people of color (BIPOC)--especially at and above the PhD level--as a significant problem. Lab leaders may be able to make considerable progress towards increased diversity by building anti-racist labs, but many lack clarity on how to do so.

To help guide lab leaders who may be new to anti-racist work, Chaudhary and Berhe have developed 10 "simple rules" that can be immediately implemented. These rules include organizing regular discussions among lab members about anti-racism, boosting the voices and recognition of BIPOC scientists in one's field, holding leaders accountable for maintaining healthy workplaces, and cultivating flexible research agendas that may be more likely to amplify and benefit from innovative contributions of BIPOC researchers.

"The global uprising against racist violence that began in May 2020 sparked in the science community a level of interest in anti-racism that I have never seen before," Chaudhary says.

Indeed, recent events such as the death of George Floyd and the racism displayed towards New York City birder Christian Cooper have prompted many Black scientists to share their experiences facing racism while working in STEM. However, science and academia have a long history of racism.

"We wrote this paper to help scientists who are new to anti-racism work identify tangible actions and connect with resources to encourage the development of a more anti-racist STEM environment that will benefit all scientists," Chaudhary says.

The ten simple rules proposed are (in brief) as follows:

    1. Lead informed discussions about anti-racism in your lab regularly

    2. Address racism in your lab and field safety guidelines

    3. Publish papers and write grants with BIPOC colleagues

    4. Evaluate your lab's mentoring practices

    5. Amplify voices of BIPOC scientists in your field

    6. Support BIPOC in their efforts to organize

    7. Intentionally recruit BIPOC students and staff

    8. Adopt a dynamic research agenda

    9. Advocate for racially diverse leadership in science

    10. Hold the powerful accountable and don't expect gratitude.

###

In your coverage please use this URL to provide access to the freely available article in PLOS Computational Biology: https://journals.plos.org/ploscompbiol/article?id=10.1371/journal.pcbi.1008210

Citation: Chaudhary VB, Berhe AA (2020) Ten simple rules for building an antiracist lab. PLoS Comput Biol 16(10): e1008210. https://doi.org/10.1371/journal.pcbi.1008210

Funding: VBC and AAB met on Twitter, where they both sought and found a community of likeminded scholars who are passionate about equity and inclusion in the academy. VBC and AAB are supported by the National Science Foundation (DEB-1844531 and HRD-1725650, respectively). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.

Competing Interests: The authors have declared that no competing interests exist.