Biological Sciences Blog

Three Biological Sciences professors are Nominated for the 2023 Michigan Tech Distinguished Teaching Award

Published February 7, 2023

We are pleased to announce three finalists for the 2023 Michigan Tech Distinguished Teaching Award. Congratulations go out to:

Professor Amy Marcarelli is nominated for the Associate Professor/Professor category. This is Amy’s fourth nomination.

Teaching Assistant Professor Claire Danielson is nominated for the Assistant Professor/Teaching Professor/Professor of Practice category. This is Claire’s second nomination.

Assistant Professor Robert Larson, is nominated for the Assistant Professor/Teaching Professor/Professor of Practice category. This is Rob’s first nomination.

These three join prior Biological Sciences department Distinguished Teaching Award winners in the recent past: Dr. Thomas Werner (2013 and 2019), Ms. Karyn Fay (2016), and Ms. Brigitte Morin (2018). Dr. Thomas Werner also won the Michigan Distinguished Professor of the Year award in 2021.

The Distinguished Teaching Award recognizes outstanding contributions to Michigan Tech’s instructional mission.

To whittle the finalists to a single winner, The William G. Jackson Center for Teaching and Learning (CTL) is seeking input on the finalists for its annual Distinguished Teaching Awards. Based on more than 40,000 student ratings of instruction responses, ten finalists have been identified for the 2023 awards. The selection committee solicits comments from students, staff, faculty, and alumni to be referenced during their deliberations.

Comments for the finalists are due by March 31 and can be submitted online.

The process for determining the Distinguished Teaching Award recipients from this list of finalists also involves the additional surveying of their spring 2023 classes. The selection committee makes the final determination of the award recipients. The 2023 Distinguished Teaching Awards will be formally announced in May.

For more information, contact the CTL at ctl@mtu.edu or 906-487-3000.

Biological Sciences Major Melia Austin Takes on Costa Rica During Her Study Abroad Trip

Published January 13, 2023

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Biological sciences major and study abroad participant Melia Austin enjoys the view in Costa Rica

Melia Austin immerses herself in her learning. One example: is a trip to Costa Rica during the summer of 2022 with fellow Michigan Tech students interested in sustainability. Building on what they learned at Michigan Tech, they observed what Costa Rica has done to become more sustainable in terms of environment, ecology, water treatment, and more. Plus, Melia immersed herself in the Costa Rican community, where she practiced her Spanish and earned credits toward her minor in Spanish.

Melia said, “I wanted to use what I’ve learned in my Spanish classes to grow in my understanding of the world, and learn about sustainability inside and outside of the classroom.” Day trips around Costa Rica greatly enhanced her learning.

Immersed in Sustainability

A Quetzal bird. — Quetzal bird sits on a branch in the sustainable rainforest in Costa Rica

The day trips brought sustainability to life. A visit to a natural hot spring showed how Costa Ricans benefit from this sustainable form of energy. They also hiked through a sustainable forest where they saw a quetzal. This is a rare bird found in Costa Rica. Sustainable forests give species like the quetzal places to thrive. The forest was not only environmentally sustainable, but also socially, and economically sustainable. As a result, Costa Rica is able to identify and manage the impacts of businesses and people on the environment and adjust accordingly to be sustainable. She noted that the rainforest and its management met the criteria of the three pillars of sustainability that they learned about in their classes.

There were lots Melia enjoyed during her time in Costa Rica. Melia’s favorite thing was “attending a conference about sustainability with graduate students and professors from different universities.” She was able to diversify her learning about sustainability by connecting with others from different universities. This enhanced her experience as she immersed herself in new opportunities to learn about sustainability.

Melia saw many natural wonders in Costa Rica, like this hot spring.

Study Abroad Takeaways From Melia

When asked what advice she would give to students considering studying abroad she said, “You are at a unique point in your life where you have the freedom and autonomy to travel and learn new things that might change how you see the world. It might even change your future plans.” In Costa Rica, she learned to be independent and travel independently. She is applying those learnings in a gap year in Senegal where she volunteers on a hospital ship. Immersing herself in Senegalese culture and the hospital environment, her goal is to gauge her interest in a career in medicine.

Michigan Tech Students Get a Biology-Centric Study Away Experience in 2023

Students at Michigan Tech can study abroad in a similar, biology-centric program. Casey Huckins, PhD and Professor of Biological Sciences leads students on a trip to the Bahamas each spring break. Students learn about the biology and ecology of tropical island plant and animal communities in marine and terrestrial systems. The program covers the geological history, human history, and climate of these fragile tropical ecosystems. Students collect data and experience the nature, dynamics, and beauty of these island ecosystems. They’re surrounded by incredible biodiversity while gaining perspective from being in another country.

This post originally appeared in Michigan Technological University’s Social Sciences Newsblog. Itis authored by Nicholas Pate, a student in the College of Business.

Q&A with Medical Technologist Peyton Gast ’20, MLS

Published January 2, 2023

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Medical Laboratory Science

Medical Technologist Peyton Gast graduated with a BS in Medical Lab Science from Michigan Tech. She works for Marshfield Clinic Health Systems in Transfusion Service. We caught up with Peyton recently.

Medical technologist Payton Gast holds blood sample — Preparing platelets for transfusion

MTU: What are you doing now?

Peyton: I work in the Transfusion Service department of the lab. This is a unique department because we are not only a testing service for patient samples, but we also provide the hospital with a variety of blood products – red blood cells, plasma, platelets, etc. When you donate blood, it comes to labs like ours, and we make sure the right units go to the right patients. Depending on the patient, finding compatible blood products can range from a very easy to a rather difficult process. This process is always a little easier when you have a large blood supply – which we do not have right now. That’s why it’s so important to get out there and donate!

How did you end up becoming a Medical Technologist?

Peyton: I knew that I wanted to work in the medical field, but I was wary of having a patient-facing career. When I came to MTU and discovered medical lab science, I loved that it was a behind-the-scenes role with a direct, significant impact on patient care. When I did my clinicals at the Marshfield Clinic, I learned that their Transfusion Service was the perfect department for me – it requires extreme attention to detail, and I get to do a lot of critical thinking and advanced manual techniques – which is the fun part! I also like that I get to take part in the stem cell processing program, and I can teach what I’ve learned to new MLS students every year.

Medical technologist Payton Gast — Reading agglutination reactions to ensure a safe transfusion

How did your degree and course of study at Michigan Tech prepare you for success as a Medical Technologist?

Peyton: Michigan Tech provides relevant and hands-on experience which made me feel very prepared for my clinicals. I had the opportunity to work with samples regularly seen in the lab, as well as examples of more complex disease states – especially in microbiology and hematology! I apply the techniques I learned at MTU to my job every day, and I have more confidence in my career knowing that I have a well-rounded education.

What did you enjoy the most about your Michigan Tech experience?

Peyton: The best part of my education experience at MTU was the opportunity to work so closely with instructors. They were always eager to meet and discuss classroom topics so that we can all better understand the material – no matter the class size.

Medical Lab Science student Payton Gast — Managing inventory in the blood bank

What advice do you have for Tech students today who wish to pursue a similar career?

Peyton: I would tell any new students interested in lab science that a degree in MLS can take you in many directions. This career can be as specific or as broad as you want it to be, so take advantage of electives and use it as an opportunity to find what you’re most interested in. I would encourage students to push this career as far as it can go – whether it’s getting a specialty in your department, going into management, teaching, or being the best generalist out there – MTU will prepare you to do it!

Amy Marcarelli Receives NSF Grant to Explore How Microbes Process Organic Matter in Streams

Published September 1, 2022

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Funding
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Professor Amy Marcarelli and a multi-disciplinary team have received a two-year, $300,000 NSF grant. The grant from the National Science Foundation is to study the relationships between organic matter and micro-organisms in streams.

Marcarelli and colleague in stream with five gallon bucket collecting a water sample — Marcarelli and colleague collecting water samples

An ecosystems ecologist, Marcarelli is leading a team of Michigan Tech ecosystem scientists, microbiologists, environmental chemists, and data scientists. The researchers are conducting detailed laboratory experiments to gather data on how microbial communities work together to process complex mixtures of dissolved organic matter in streams. Steve Techtmann, associate professor of Biological Sciences and an environmental microbiologist, is doing all the microbial work on the project in his lab at Michigan Tech.

Dissolved organic matter comprises many different kinds of molecules that come from terrestrial and aquatic plants and microbes. The researchers expect different microbes that live in streams to be specialized to break down these different molecules.

“We expect the relationships to be extremely complicated,” Marcarelli says.

They are looking at rates of respiration, carbon breakdown, and energy release. They hope to discover how the characteristics of dissolved organic matter and stream microbes can explain rates of carbon dioxide emission from streams.

The researchers will use the data to develop machine-learning models. “The relationships between the organic matter and micro-organisms might not be evident in simpler analysis methods,” Marcarelli explains.

The current work is the start of a much larger project. “We hope to build on the results of this project with a much bigger proposal for a large field project,” she says.

And why is this work important? “Although we, as a field, have studied carbon dioxide production and emission across many different streams, we can only predict a small amount of the variation we see based on environmental characteristics like temperature,” Marcarelli explains. “We think there is an important role of both microbes and organic matter structure that contributes to this variability, and understanding that is important for predicting these emissions in the future and response to global changes like climate and land use change.”

Marcarelli is the director of the Ecosystem Science Center at Michigan Tech.

This blog post initially appeared in the Fall 2022 Biological Sciences Newsletter. Read this article and others like it today.

Saving the Brook Trout by Restoring their Spawning Habitat

Published September 1, 2022

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News

Professor Casey Huckins has been studying the ecology of coaster brook trout for nearly 20 years. He started out investigating these migratory fish’s population ecology and life history. His research now focuses on analyzing the movement patterns of coaster brook trout due to human impact on the watershed. He is also focusing on ways to restore them and the habitat they need to spawn. Recently, with funding from the Michigan Departments of Environment, Great Lakes and Energy (EGLE) and the Department of Natural Resources, his lab has been actively restoring its critical habitat. “Human actions have turned these iconic heritage species of Lake Superior into a conservation concern by overharvesting them and disturbing their habitat,” Huckins explains.

Casey using a tool in a stream — Casey Huckins working in the field

His team is actively studying the two coaster brook trout populations still known to exist along the south-central shore of Lake Superior.

These migratory coaster brook trout live in Lake Superior. However, they return to their rivers of origin to breed in the same spots where they were spawned. Due to disturbances in the watersheds, like logging and road use, the spawning habitat of these creatures has been buried. This has altered the critical dynamic of erosion and sedimentation, leading to a buildup of fine sand. The sand present here is responsible for covering larger sediment particles like cobbles and pebbles. Cobbles are small rocks that have been rounded by water flow. These pebbles serve as the spawning habitat and also as the home for the brook trout’s food and aquatic insects.

With his recent state funding, Huckins says his goal is to restore the critical spawning habitat. He will do this by removing excess sand and studying the impacts on the habitat and the brook trout population. His team has installed in-stream sand collectors that passively collect sand as it flows over them. The researchers then routinely operate pumps to move the sand out of the floodplain.

Huckins’ team is now investigating whether the community of stream insects that are key food items for the brook trout also increases in abundance, diversity, and community structure. He hopes to see a site with natural, free-flowing cobble-based cold-water habitat. Huckins found this at the site when he started studying it with his graduate students nearly two decades ago.

His next goal is to acquire additional funding to automate the sand collectors to operate independently. Huckins’ goal is to eliminate the need for researchers to manually pump sand at the site, saving them time and fuel expenses. The team is currently expanding their efforts to implement this system in various streams and rivers. Their equipment is being utilized to rehabilitate other waterways that have suffered from erosion due to flooding, land use, or other factors that cause sand to flow downstream. As our climate changes, we expect to see more extreme events that will have outcomes we need to address to restore and maintain these critical aquatic ecosystems.

This blog post initially appeared in the Fall 2022 Biological Sciences Newsletter. Read this article and others like it today.

2022 Provost’s Award Winner Plans to Practice Rural Medicine

Published September 1, 2022

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Christian Johnson won the 2022 Provost’s Award for Academics. He is pursuing a double major in Human Biology and English.

Johnson’s goal is to attend medical school and become a primary care physician in a rural area.

A native of Detroit, he chose Michigan Tech because the small size of the university and community appealed to him. He found the faculty in the College of Arts and Sciences so helpful. He visited Tech many times and participated in a Summer Youth Program. “I could see myself being part of the Michigan Tech community,” he says.

He worked with Greg Miodonski, a graduate student in Qinghui Chen’s lab. They studied the effect of exercise training on cardiovascular function in animals. Chen is a professor of Kinesiology and Integrative Physiology and an affiliated professor of Biological Sciences and Biomedical Engineering.

The research investigated how exercise impacts the function of small conductance calcium-activated potassium (SK) channels in the paraventricular nucleus of the hypothalamus (PVN) of rodents. It aimed to assess whether exercise could augment SK channel function in normotensive and hypertensive rats and, consequently, sympathetic nerve activity and blood pressure.

“Christian was an invaluable assistant, and his Cool Hand Luke demeanor will be missed,” said Miodonski. “Working with rodents is challenging and can be intimidating, but Christian took to the rodents immediately. Unlike exercising humans, exercising rodents poses several challenges. Mainly, rodents are poor listeners and don’t follow instructions too well. This means that exercising them requires diligence, focus, and lots of patience. Christian exhibited all of these qualities. Some undergraduate assistants require a lot of mentoring and instruction before gaining autonomy, but not Christian. A quick study, he handled obstacles exactly how I would have and impressed me at every turn. Christian also aided me with recording blood pressures in conscious rodents. This is challenging and requires constant attention for many hours. Here again, Christian exceeded expectations.”

In addition to research, Johnson immersed himself in many activities at Michigan Tech, including the Blue Key National Honor Society, Alpha Epsilon Delta—the National Health Pre-Professional Honor Society, the Pavlis Honors College, the Pre-Health Association, and Sexual Assault and Violence Education. He also worked as a writing coach in the Michigan Tech Writing Center, served as a resident assistant, and worked in various other mentoring roles. Christian found time to serve as an active volunteer for Dial Help. He also recently had a piece of his creative writing published.

This summer, he studied at the University of Stirling in Scotland, where he took courses to fulfill major requirements for his English degree.

“When I heard that I received the Provost’s Award, I was shocked,” Johnson says. “Hearing all of the work I have been putting in and my accomplishments being read aloud; picking up the plaque; and shaking Dean Kampe’s, Dean Southerland’s, and President Koubek’s hands is a moment I will never forget.”

Johnson is currently applying to medical schools. Being from Detroit and living in Houghton, he has had the opportunity to see medical care in both urban and rural settings. Working with Dial Help particularly opened his eyes to the struggles that rural area residents face in accessing resources and being able to see a physician. “That experience made me want to serve rural areas and help with the primary care physician shortages in those areas,” he says.

This blog post initially appeared in the Fall 2022 Biological Sciences Newsletter. Read this article and others like it today.

NIH Grant Helps Dr. M. Tang Explore Cancer Mechanisms and Novel Treatments

Published September 1, 2022

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Xiaohu (Mark) Tang’s Laboratory of Cancer Metabolism and Functional Genomics is using a three-year $413,090 grant from the National Institutes of Health to find ways to optimize the efficacy of targeted cysteine therapy and broaden its application for the treatment of different subtypes of breast cancer. Tang is an assistant professor of Biological Sciences. He earned his Ph.D. at The Weizmann Institute of Science. Haiying Liu, Professor of Chemistry, is a co-investigator on this project.

“Targeted cancer therapy is an emerging trend in precision cancer medicine,” Tang explains. “It uses the specific genetic makeup of a patient’s tumor to select the safest and most effective personalized treatment, instead of the traditional symptom-driven practice of medicine. Identifying and targeting metabolic vulnerabilities in cancer is a promising therapeutic strategy.”

The NIH grant will also provide research-based training for undergraduates and graduate students in Biological Sciences and the Biochemistry and Molecular Biology programs. “The work will enable students to understand the complexity of cancer and motivate them to seek novel strategies to improve health issues,” says Tang.

Tang’s lab works to characterize the deregulation of cancer metabolism and the role of nutrients during cancer initiation and progression. He is working to understand the underlying mechanisms of cancer to pursue workable alternative treatments for patients. He also hopes that a better understanding of diet-cancer interactions could establish a strategy for long-term cancer prevention.

This blog post initially appeared in the Fall 2022 Biological Sciences Newsletter. Read this article and others like it today.

Erika Hersch-Green Receives NSF CAREER Award

Published September 1, 2022

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Erika Hersch-Green, plant evolutionary ecologist and associate professor of Biological Sciences, received a National Science Foundation CAREER Award. She will investigate how specific attributes of plants, such as their genome size, influence community biodiversity responses to increased nitrogen and phosphorus availability. Hersch-Green’s approach combines molecular, cytological, physiological, and phylogenetic techniques.

Hersch-Green is conducting her research on three fronts. First, she is currently gathering fresh data and merging it with information from experimental grassland sites around the world. These sites have plots with different nutrient treatments, allowing her to examine how response patterns vary depending on climate conditions. Second, she is conducting controlled greenhouse studies to better understand mechanisms that focus on two common grassland plants: fireweed and goldenrod, both of which she has studied before. Lastly, she developed a new research site at Churning Rapids, north of Hancock and south of McClain State Park. There she is extending her research to look at how disturbance patterns affect levels of biodiversity.

She is also exploring ways to improve students’ scientific literacy and engagement in research. To accomplish this, she is incorporating students in grades 6 through 12 and undergraduates in research, enhancing research involvement in the classroom, facilitating effective scientific communication skills of graduate students, and promoting collaboration among undergraduate students and faculty in the Departments of Biological Sciences and Humanities. These students will produce video content that will be used to enhance education and public understanding of biological science and ecology.

To summarize, Hersch-Green aims to provide a system-level understanding of how nutrient eutrophication—the increasingly dense growth of particular plants at the expense of other species—and landscape disturbances affect individual organisms and multi-species communities by looking at their interactions.

Although she is passionate about her research, Hersch-Green is also deeply committed to the educational component of her CAREER award. Her educational goals are to increase both scientific literacy and engagement of high school and university students on critical topics related to nutrient eutrophication, biodiversity, evolutionary adaptation, and awareness of related STEM (science, technology, engineering, and math) career pathways.

This blog post initially appeared in the Fall 2022 Biological Sciences Newsletter. Read this article and others like it today.

Anatomage Table 8.0 is a True Game Changer for Students

Published September 1, 2022

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Students standing beside an interactive table in a lab — Students using Anatomage Table in A & P

Thanks to the generous support from our alumni and friends, the department purchased a virtual human cadaver dissection table from Anatomage. The table cost about $72,000. Our Anatomy and Physiology (A & P) students have been excited to use this equipment since the Fall of 2021. The table will move to our new H-STEM building when that project is complete (and be joined by a second table). This 7.2-foot-long iPad-like table allows eight students to simultaneously learn and experience medical sciences in a way they have never done before! We would greatly appreciate it if you could contribute to Anatomage Michigan Tech Fund #3454. Funds will go to purchase a second Anatomage table. As a result, this increases instruction for up to 16 students at the same time. We are already halfway there.

The Anatomage Table 8.0 is one of the most technologically advanced virtual dissection platforms. The Table’s interactive, life-sized display is now available for our undergraduate students to utilize within the Anatomy & Physiology Teaching Laboratory! It expands our ability to provide ultra-high-quality visualization for students to view photorealistic anatomical structures. Students are amazed by the level of detail within each virtual human cadaver. They see value in comparing models and textbook images to actual medical images. The Table includes a robust library of histology scans, CT and MRI scans, clinical cases, and physiology simulations.

This blog post initially appeared in the Fall 2022 Biological Sciences Newsletter. Read this article and others like it today.

Paul Goetsch Receives NIH Grant to Study Cell Cycle Regulation

Published September 1, 2022

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Dr. Goetsch assisting a graduate student in the lab

Assistant Professor Paul Goetsch received a $423,381 grant from the National Institutes of Health. Dr. Goetsch will study how the DREAM transcriptional repressor complex regulates the cell cycle of cellular progression and cellular quiescence.

Cellular division is extremely important as an organism grows to maturity, but just as important are the mechanisms that stop cells from dividing. Dysfunction in cellular quiescence generally leads to the development of cancer cells, Goetsch explains.

Working in the model system Caenorhabditis elegans, a 1 mm-long transparent nematode, the Goetsch lab is using CRISPR/Cas9-mediated genome editing to disrupt how the DREAM complex forms and test how that affects its function. “By exploiting advances in genomic editing and genetic tools in a tractable model system, we will gain new insights into how the DREAM complex protects cellular and organismal health,” says Goetsch.

Another part of the grant supports bringing research directly into the classroom for Biological Sciences students in the second-year genetics lab. Goetsch and his colleagues are implementing Course-based Undergraduate Research Experiences (CUREs). These are used to provide students a glimpse into research opportunities within the department.

In Spring 2021, Goetsch and his student Emily Washeleski developed a unique experiment combining C. elegans genetics with environmental microbiology. “We are continuing to expand upon our CURE approach to provide students equitable access to research experience as a cornerstone of their professional development within the department,” Goetsch says.

This blog post initially appeared in the Fall 2022 Biological Sciences Newsletter. Read this article and others like it today.