ray yeager – UofL News Mon, 20 Apr 2026 15:43:07 +0000 en-US hourly 1 UofL students spread their wings during a summer of science /section/science-and-tech/uofl-students-spread-their-wings-during-a-summer-of-science/ Wed, 27 Jul 2022 15:20:03 +0000 /?p=56897 It’s a typical summer morning in Louisville with heat rising as Madison “Maddy” Cicha unfolds a tripod to set up a noise monitor that captures the constant hum of traffic from the Watterson Expressway. Cicha, an environmental science major, has spent the summer measuring how trees and other vegetation provide a sound buffer along heavily trafficked roadways in Louisville.

As a participant, Cicha is one of 18 undergraduate students taking part in the 10-week funded research experience, directed by UofL’s and the Office of Undergraduate Research and Creative Activity. She says the program has given her a new level of research independence.

Maddy Cicha
Maddy Cicha

“This summer I have much more control over the study design and analysis of the data than I’ve had on previous projects,” she said.

Ray Yeager, assistant professor, Department of Environmental Medicine, is Cicha’s mentor. He says programs like SROP help undergraduate students build research understanding while also leading them toward more informed choices about research as a career path and future graduate schools.

“It is fundamentally different than sitting in class since you are participating in real research,” he said.

The Summer Research Opportunity Program offers participants a living allowance of $3,500 for the 10 weeks, plus their mentors receive $500 to support student research projects. Students identify a research mentor who provides them with an individualized research project. They also benefit from group seminars on research and graduate education topics. To participate, students need to have completed their second year of undergraduate education.

“I’m a big fan of SROP because it is crucial for equity,” said Yeager, who is now in his third year of providing SROP student mentorship. “If someone is from a disadvantaged background, they can’t just go volunteer with a lab for the summer. Because this is a funded program it gives students who otherwise would have to work the opportunity to focus on research.”

Yeager adds that the program is beneficial for undergraduates with a variety of future goals, pointing out that students don’t have to desire a career in research to gain value from things like understanding data analytics and other important aspects of research.

Ethan Mills
Ethan Mills

For Ethan Mills, a biology major with plans to become a trauma or critical care physician, the summer experience is helping develop essential character traits of “discipline, patience and the ability to achieve goals with a team. My critical thinking skills also have greatly improved while designing experiments and fixing issues as they arise,” he said.

Mills is taking part in work that includes purifying hemoglobin from swine red blood cells, and then conducting experiments with the blood. He’s participating in research within the lab of Michael Menze, professor, Department of Biology, and associate dean of research and innovation, College of Arts and Sciences. The lab hopes to develop a freeze-dried red blood cell product that would extend the shelf life of transfusible units and allow red blood cells to be stored at room temperature.

The soon-to-be fourth-year biology student says he appreciates the wisdom Menze imparted to him this summer.

“He has taught me the importance of maintaining a positive attitude despite setbacks, and carefully planning experiments before beginning them,” Mills said.  

Cicha also is learning time management, literature reviews and general best practices for the research world.

“In the future, I’d like to continue researching the environment, specifically climate change and solutions in that realm. This program is greatly helping me to shape those plans, as I’m able to experience what it’s like presenting and reporting on my findings,” Cicha said.

The SROP students, along with more than 80 additional undergraduate and graduate students taking part in summer research programs across UofL’s campuses, will present their findings in the Research Showcase on Aug. 5 at the Kosair Charities Clinical & Translation Research Building.

“I think SROP is a unique experience that UofL offers undergraduates. It’s great to be paired with someone who genuinely cares about the next generation of scientists and to meet other students with similar life goals,” Cicha said.

Here is Cicha talking about her summer research experience:

]]>
UofL researchers find more health benefits of living in a greener environment /post/uofltoday/uofl-researchers-find-more-health-benefits-of-living-in-a-greener-environment/ Mon, 30 Aug 2021 15:28:56 +0000 http://www.uoflnews.com/?p=54340 Evidence is growing that living in areas of high greenness, surrounded by trees, shrubs and other vegetation, has beneficial effects on human health. Researchers at the University of Louisville’s and other colleagues recently published two studies showing positive effects of greenness: one on cancer survival and the other on depressive symptoms.

In the first study, UofL researchers Aruni Bhatnagar, professor of medicine and director of the Envirome Institute, Ray Yeager and Daniel Riggs, with Carver Coleman and Arden Pope of Brigham Young University and others, analyzed retrospective data from more than 5.5 million cancer patients and survivors from 2003 to 2016. They found that cancer patients in greener counties lived longer than those in counties with less greenness. The protective effects of greenness against cancer mortality were seen with both males and females and individuals of all ages, but were more pronounced at urban locations. Individuals with cancers that were highly survivable – such as breast, prostate and skin cancer – benefitted more from greenness than those with cancers with low survival rates such as brain, esophageal, liver, lung and pancreatic cancer.   

The study, “,” published in the journal Environment International, evaluated associations between greenness and fine particulate matter in the air on causes of death in a large group of cancer patients and survivors in the United States.

“This is the largest study of the relationship between greenness and cancer mortality, and it provides clear evidence that living in green areas is beneficial to cancer patients,” said Bhatnagar “However, we do not yet understand why greenness protects against cancer mortality. Much more remains to be done to see whether greenness benefits cancer patients by lowering mental stress and anxiety or by reducing the levels of air pollutants or whether some other mechanisms are at play.”

The study also found that cardiopulmonary disease, but not cancer, was associated with higher levels of fine particulate air pollution. Mortality from cardiopulmonary causes – stroke, heart attack or COPD – was not affected by county greenness, except in rural locations.  

Greenness and depression

A second study, led by Kandi Walker and Joy Hart, professors in the UofL Department of Communication, Bhatnagar and other researchers in the Envirome Institute, found that people’s satisfaction with levels of greenness in their neighborhood was associated with lower levels of self-reported depressive symptoms.  

The researchers surveyed participants about their perceptions of greenness in their neighborhoods and their mental health symptoms and found that those who were more satisfied with the greenness surrounding their homes also reported lower depression symptoms on a health survey, the Patient Health Questionnaire-9.

The 44.5% of survey participants who reported they were satisfied with the level of greenness in their neighborhood collectively scored better on the health questionnaire for depression.

“Given the pervasiveness of depression in the U.S. population, any changes that can reduce depression are essential, particularly those that can affect a large number of people,” Hart said. “The findings of this study suggest that greening interventions that focus on greenness satisfaction may be a strategy to reduce depression in urban populations.”

The study, “,” was published in July in the journal Population Medicine.

South Louisville study participants needed

Participants in the greening satisfaction study were part of the Health, Environment and Action in Louisville (HEAL) study of the Great Heart Project, which is an ongoing assessment of the effects of neighborhood greenness on individual health. Additional participants are needed for the HEAL Study by the end of September. More information is available on the website.

“Together, these studies add weight to the importance of trees, shrubs and other vegetation in urban areas in benefitting and nurturing human health. Accumulation of such evidence strengthens the case that increasing greenness in urban locations can decrease the high rates of non-communicable diseases in cities,” Bhatnagar said. “And since greenness improves health in general, it may also be effective against infectious disease.”

]]>