SyndicateMizzou Video Podcast

SyndicateMizzou Podcast: Matt Gompper - Matt Gompper - Research in Conservation Biology

Wed, 26 Jul 2006 15:42:25 GMT

Introduction to Gompper's research in conservation biology. Gompper discusses animal disease and evolutionary ecology.

SyndicateMizzou Podcast: Matt Gompper - Tigers for Tigers

Wed, 26 Jul 2006 15:47:49 GMT

Without active management and conservation of tigers in the wild, tigers will disappear from the wild in our lifetime. Tigers for Tigers is a student group that raises money to help tigers continue to survive in the wild.

SyndicateMizzou Podcast: Matt Gompper - Tigers for Tigers (cont.)

Wed, 26 Jul 2006 15:51:42 GMT

Students work as a non-profit organization to promote the awareness of species extinction, animal ecology, and environmental issues to elementary students.

SyndicateMizzou Podcast: Matt Gompper - Collaboration on Campus and Beyond

Wed, 26 Jul 2006 15:53:23 GMT

Gompper and his team work with parasitologists at the School of Veterinary Sciences to learn more about the effects of various diseases on wildlife and how wildlife can act a resevoir for diseases that humans may contract. Gompper discusses many other collaborations as well.

SyndicateMizzou Podcast: Ted Tarkow - Reconstruction of Free Energy Profiles from Fast Nonequilibrium Processes

Mon, 13 Nov 2006 16:15:56 GMT

####Michael Forney, Department of Physics and Astronomy #### Ioan Kosztin, Mentor In order to establish the structure-function relationship of nanoscopic biomolecules, one needs to follow their dynamics on a mesoscopic time scale that is beyond the reach of current all-atom molecular dynamics (MD) simulations. A viable approach to this daunting problem is a multiscale modeling approach that requires as input the detailed free energy profile (potential of mean force [PMF]) of the system. In the present study we report PMF calculations based on a recently proposed method that employs fast (~10ns long) nonequilibrium MD simulations. Our PMF calculation method, which is more efficient than previously used ones, has yielded very good results for the folding/unfolding of deca-alanine and for the potassium ions transport through the gramicidin A channel protein.

SyndicateMizzou Podcast: Ted Tarkow - Stress and the American Toad

Mon, 13 Nov 2006 16:18:57 GMT

####Emily Fountain, Biological Sciences ####Raymond Semlitsch and Matthew Lucy, Mentors The purpose of my project is to measure corticosterone levels of the American toad (_Bufo americanus_). In my study the physiological effect of stress on the toad is quantified using a commercial kit called RIA. Currently, the only available option to measure hormones in amphibians involves long and complicated homemade assays. The result of my research provides an easy and quick method of measuring corticosterone levels for the American toad. In combination with continuing studies on the behavioral effects of habitat fragmentation and deforestation, the commercial RIA kit will be used to determine the impact of stress on population size and/or possible extinction.

SyndicateMizzou Podcast: Rex Cocroft - The beauty of animal communication

Tue, 06 Feb 2007 18:33:43 GMT

MU Biologist Rex Cocroft studies animal communication, something he was drawn to at a very young age. Communication is crucial to life at many levels, occurring within a cell, between cells, or between organisms within social groups. “Once we reach the level of communication between individuals, not only is there the fascinating intellectual challenge of studying communication, but there’s also this tremendous aesthetic appeal – that the signals themselves are often beautiful: the songs of whales, the flapping of butterfly wings, the scents of flowers.” Beyond its inherent beauty, communication is very important for the biology of organisms, since the evolution of the signals has much to do with the evolution of the species itself.

SyndicateMizzou Podcast: Carmen Chicone - The Fundamental Importance of Science

Wed, 06 Feb 2008 19:13:25 GMT

Chicone discusses the fundamental importance of mathematics for the natural world, observing that mathematics serves an array of practical purposes. He gives the example of one of his students, who freezes tissue for a project in cryobiology. The researchers working on this project are using mathematical models to make predictions about the behavior of living cells.

SyndicateMizzou Podcast: Carmen Chicone - Contributions to Science

Wed, 06 Feb 2008 19:13:42 GMT

Chicone contributes to other fields of science outside of mathematics, cooperating, for example, with MU’s Medical School and School of Engineering to produce the kind of mathematical models that now play an integral role in designing predictions for scientific experiments.

SyndicateMizzou Podcast: Carmen Chicone - Math: A Symposium of Art

Wed, 06 Feb 2008 19:14:06 GMT

Chicone believes math is an artistic expression like music, painting, and theatre. Not everyone can identify with this art, he admits, but those who can are able to develop a strong appreciation for problem-solving.

SyndicateMizzou Podcast: Carmen Chicone - How Math Found Him

Wed, 06 Feb 2008 19:14:41 GMT

Chicone describes how he became interested in studying mathematics. Beginning with positive experiences he had as a student, his love for the subject continued

SyndicateMizzou Podcast: SyndicateMizzou - How did you come to this research or creative activity?

Tue, 06 May 2008 15:44:41 GMT

When asked about why they were drawn to this area of research or creative activity, MU faculty provide interesting and compelling responses. In some cases, they continued in school because the drive to learn new things was so great, because family provided a sense of identity and career direction, or because of initial interest in a related field. In other cases, they stumbled upon the field quite by accident. Regardless of the reason, the passion they hold for their work is obvious.

SyndicateMizzou Podcast: Graduate Students - Andrew Cox, Division of Biological Sciences

Wed, 23 Jul 2008 20:19:59 GMT

Broadly speaking, Andrew Cox’s research interests within biology include ecology, evolution, and the conservation of birds. “Many people don’t realize,” says Cox, “that even in the best of circumstances a bird in the most pristine forest probably loses half of its young to predators.” Cox's work, with his mentor John Faaborg of the Division of Biological Sciences, focuses on forest birds, particularly migrant birds, which winter in the south and come north to breed. “We know that the way people have used land has changed the breeding habitat of birds,” explains Cox. In Missouri, for example, much of the state was once comprised of forests. “As forests become more fragmented, it affects the lives of birds. We know that the more fragmented the forest becomes the lower the chances a particular bird has of producing young successfully.” Cox’s research seeks to understand why this is the case.

Focusing on two birds in particular, Acadian Flycatchers and Indigo Buntings—both of which reside in Missouri and surrounding areas—Cox uses constant surveillance cameras to monitor nests around the clock in order to identify the types of animals responsible for nest failure. He shows an example of a black rat snake attacking a young nestling. “Historically, we thought snakes and hawks were important predators, but we never had video evidence like this to prove it. You rarely witness the predation of an animal in the wild….We didn’t really know which animals were primarily responsible for overall predation pressures on these birds.”

Cox is also examining how predation impacts bird behavior. “There are a lot of predators out there who are visually oriented—for example, blue jays and hawks—so that the more frequently a bird goes to the nest to feed its young, the more likely it will draw attention to the nest.” Some research has shown that birds who visit the nest more often, in particular cases, are more likely to lose their nests to predators than those who visit less frequently. Cox seeks to understand the relationship between the types of predators and when they are most active, which can help to explain variation in the way birds behave. “As a small bird, you can only do so much to protect the nest,” Cox reflects. “A famous poet once said, ‘bread, tooth, and claw.’ It breaks your heart sometimes…but it’s the rule of the land, really, it’s just how things go.”

SyndicateMizzou Podcast: Graduate Students - Amy Replogle, Division of Plant Sciences

Tue, 26 Aug 2008 12:25:37 GMT

Of her typical day, Amy Replogle, a graduate student in the Division of Plant Sciences, responds: “When I am not in class, I am in the lab doing research.” Replogle focuses on plant microbiology and pathology with professor Melissa Mitchum in the Bond Life Sciences Center. Specifically, she is working on the interaction between the plant parasitic cyst nematode and its host plant the soybean. These plant cyst nematodes are microscopic round worms that live in the soil and feed off the roots of plants. When they feed, they cause damage to the roots so that they can no longer uptake the water and nutrients needed for proper development. When a high percentage of soybean cyst nematodes reside in the soil, they result in yield losses for the farmer, a huge problem for Missouri soybean farmers.

Replogle demonstrates some of the steps involved in her experiments—from hatching the eggs and germinating soybean seeds to examining the infected roots with an inverted microscope. Replogle describes the life cycle of the soybean cyst nematode, which begins with the adult female cyst, which contains hundreds of eggs, and which may lie in wait in the soil for thirty years. “That is just one of the reasons it is so hard to control,” she says. When hatched, the nematode seeks a root, enters it, and penetrates the cell walls, "spitting" secretion into the root to induce the breakdown of cell walls and the formation of a feeding site.

“This is where my research project comes in,” Replogle explains. “I am actually studying one of the particular proteins that the nematode secretes that enables it feed from the plant for the rest of its life.” Through this research, Replogle seeks to better understand this problem in order to propose better solutions.

SyndicateMizzou Podcast: Graduate Students - How They Became Interested in Their Research

Tue, 15 Jul 2008 18:40:53 GMT

It is fascinating to hear about how these graduate students were drawn to their chosen area of study. While in some cases, their graduate program was a logical next step, for other students there is the sense that serendipity played a bigger role. In all cases, however, the sense of “something just clicking” becomes evident. Once they chose an area in which to specialize, that is, other aspects of their research and study just seem to fall into place.

William Donald Thomas, for example, recalls his college days: “I was an art major and then an English major, but I couldn’t see myself doing that for the rest of my life.…I looked at what I liked most, and that was biology. I wasn’t always interested in exactly what I’m doing now. I sort of fell into it. I like the simplicity in the system we are using; that is probably what attracted me to it.”
Similarly, Erica Racen admits that she did not begin in the basic sciences. As an undergraduate student, however, she did research in the area of cardio-thoracic surgery. “I was excited about science and research, and after graduating, I decided to get my Ph.D.” While doing rotations in different labs, she states: “When I tried out Karen Bennett’s laboratory, I found that it was the right fit for me. I liked the research, and as I have slowly learned more about it, it has kind of become my own.”

Brian Bostick recounts that he enjoyed science and medicine in high school, saying, “I always thought I would be a doctor.” While taking classes to prepare for medical school, he was exposed to the research aspect of academia. “I got really interested in how the stuff in the textbooks got there. I wanted to become one of the people who discovers those things.” After doing a rotation in Dongsheng Duan’s laboratory, says Bostick, “I think that’s when it all clicked. It was really exciting. Duan is really energetic and believes in the work he is doing. He is always thinking back to the actual patients. I think that is what really got me interested in research, but also in combining research with the clinical side.”

“Growing up, I was fascinated by nature and plants,” tells Amy Replogle. Intending to pursue plant biology in college, an internship at The Ohio State University in plant pathology triggered greater interest. Afterward, Replogle came to MU for an internship with Melissa Mitchum, who later became her advisor.

“I’ve always liked plants,” says Severin Stevenson about his own path to graduate school. Not only are plants relatively easy to study and hold multiple opportunities for studying, but they are also a good starting model. “Biochemistry is biochemistry,” suggests Stevenson. “No matter what system you are working on, you can apply it to other systems as well.”

SyndicateMizzou Podcast: Karen Cone - How Cone Came to this Area of Research

Mon, 22 Sep 2008 15:54:12 GMT

“I don’t know exactly why I got interested in biology,” recounts Cone. “I was interested in medicine, so I started college thinking that I would be a medical doctor… But pretty soon I realized that wasn’t the kind of work that I wanted to do. So I started leaning more towards research.” Because of her own experience, Cone advises students accordingly: “You can turn out okay even if you don’t know what you want to do right now. So you just have to look for opportunities and keep your eyes open. Listen to what people are telling you, and to what sounds cool, and believe that nothing is impossible. In science it is common to totally change fields, to do your Ph.D. in one thing and eventually end up working on some other topic. Getting a Ph.D., after all, is about learning to be a critical independent thinker.”

SyndicateMizzou Podcast: Shubhra Gangopadhyay - Campus Collaboration

Mon, 27 Apr 2009 13:12:38 GMT

For Gangopadhyay, collaboration is one of the most important parts of scientific research. “If you don’t have the right collaborators,” she remarks, “it’s impossible to move your field to the next level.” Many of the collaborations with which she is involved are possible only on the MU campus.

SyndicateMizzou Podcast: Bruce McClure - McClure’s Greenhouse

Sat, 05 Dec 2009 21:56:30 GMT

McClure shows us his greenhouse and demonstrates how to pollinate a plant.

SyndicateMizzou Podcast: Bruce McClure - Connection between Research and Teaching

Sat, 05 Dec 2009 21:56:13 GMT

Currently, McClure is teaching in MU’s medical school. Before that, his undergraduate courses incorporated his plant research. “That is why it’s worthwhile for students to come to a research university,” says McClure. “Like the students, I am struggling to learn things that I don’t know. I can empathize with how hard it is to learn things, and I can share strategies to learn.”

SyndicateMizzou Podcast: Bruce McClure - Research in the McClure Lab

Sat, 05 Dec 2009 21:53:23 GMT

Bruce McClure studies plant mating. Similarly to all sexually reproducing organisms, plants devise ways to identify appropriate mates. The penalty for choosing a partner who is either too closely related or too genetically different is unhealthy offspring. Sound familiar? The same rules apply to human reproduction, with one major difference—plants can’t move around or talk. McClure and his fellow researchers approach plant mating with a scientific lens and study the type of communication that takes place within these organisms.

SyndicateMizzou Podcast: Bruce McClure - How Plants Identify Appropriate Mates

Sat, 05 Dec 2009 21:53:57 GMT

Because plants can’t move around to find suitable mates, they depend on other forces, such as birds, bees, and wind, to bring them pollen. They can make themselves attractive to one kind of animal versus another, but they don’t have control over whose pollen is transferred to them. McClure is trying to understand how plants are able to screen all the pollen that comes to them and then identify the best choice.

SyndicateMizzou Podcast: Bruce McClure - Tobacco, Tomatoes, and Potatoes

Sat, 05 Dec 2009 21:38:12 GMT

McClure says that choosing plants for his research requires much consideration. Originally, he studied the Nicotiana genus, relatives of tobacco, but when those plants proved too difficult for some experiments he started concentrating on tomato relatives. Currently, McClure has begun work on potatoes.

SyndicateMizzou Podcast: Bruce McClure - Importance of the Potato

Sat, 05 Dec 2009 21:54:53 GMT

The potato is an essential global food source and the world’s number one non-grain food commodity. However, this valuable food is vulnerable to pests and disease. McClure wants to figure out how to move disease-resistant genes from wild potatoes to cultivated ones. Such a cross would lead to increased crop productivity and immense benefits for farmers.

SyndicateMizzou Podcast: Bruce McClure - The Problem with Plants

Sat, 05 Dec 2009 21:55:17 GMT

The main challenge, says McClure, is keeping his plants healthy and happy. The sleeping bag he keeps in his office is evidence of the constant worry that accompanies his work. If somebody doesn’t show up to water the plants, he warns, “you come back and the greenhouse is toast, and in many cases the plants I’ve got are irreplaceable.”

SyndicateMizzou Podcast: Bruce McClure - Research Goals

Sat, 05 Dec 2009 21:55:46 GMT

McClure aims to understand how species recognition functions in plants. He sees his work as an intellectual puzzle, and puts much effort into figuring out how these mating mechanisms work. If he can figure out how to remove the mating barrier between incompatible plants, then farmers will see an increase in healthy, productive plants.

SyndicateMizzou Podcast: Bruce McClure - How McClure Became Interested in Biology

Sat, 05 Dec 2009 21:56:57 GMT

McClure always wanted to help the world through science, but plant genetics wasn't part of his original grand plan. After college and a environmental biochemistry major, he took a position with a diet geneticist seeking to modify the nutritional value of maize. This job exposed McClure to genetic analysis and helped him realize that he could have an impact on the world through agriculture.

SyndicateMizzou Podcast: Dawn Cornelison - Dissecting Muscle Stem Cells

Wed, 08 Sep 2010 01:02:50 GMT

Cornelison’s research examines muscle stem cells in order to uncover the mechanics behind muscle regeneration. Based on her findings, she hopes that other scientists can potentially devise cures for neuromuscular diseases such as dystrophy.

SyndicateMizzou Podcast: Dawn Cornelison - Mighty Mouse

Wed, 08 Sep 2010 01:04:06 GMT

Cornelison mainly conducts research on mice, though her ultimate goal is to understand muscle stem cell behavior in humans. Mice serve as a good model for satellite cell activity because they are mammals with muscles and genes similar to humans.

SyndicateMizzou Podcast: Dawn Cornelison - Roots of Interest

Wed, 08 Sep 2010 01:05:55 GMT

Cornelison initially started college as a chemistry major, but after taking a biology course she realized her passion was for natural science. Soon afterward, she realized she was hooked on lab work. “I remember the feeling whenever I did an experiment,” she recalls, “and realize that I now know something that no one else in the world knows, and I get to go tell them about it.”

SyndicateMizzou Podcast: Dawn Cornelison - Research Challenges

Wed, 08 Sep 2010 01:07:56 GMT

When doing research, Cornelison says, “you have to have a pretty high tolerance for failure bordering on extreme stubbornness… You’ve got to be able to live with not getting things to work all the time.” All of her research is funded by external grants, which means she has to secure external funding in order to pay her fellow researchers, house the lab’s mice, or buy materials. Currently, Cornelison is receiving funding from the National Institutes of Health and the Muscular Dystrophy Association.

SyndicateMizzou Podcast: Dawn Cornelison - Pursuit of Happiness

Wed, 08 Sep 2010 01:08:46 GMT

Although Cornelison doesn’t want her research to come to an end anytime soon, she is aiming at discovering information that will help other scientists formulate cures. And even though she almost quit graduate school to become a doctor, Cornelison says she “wouldn’t be doing anything else, regardless of whatever challenges might come up.”

SyndicateMizzou Podcast: Matt Will - “Fighting Our Own Biology”: Evolutionary Eating Habits

Fri, 15 Oct 2010 00:22:10 GMT

Will describes a recent project exploring the relationship between binge-eating and increased food palatability. Genetics plays a large role in our craving for high-calorie food.