Natural Sciences

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Our science departments are committed to creating and disseminating new knowledge in their fields by combining research and teaching. Our 300 faculty members — including fellows of many learned societies and academies — are engaged in research that spans a broad range, from questions about the foundations of quantum mechanics, to the development of cancer cells and the workings of the brain, to work resulting in the spin-off of high-technology companies. Faculty share their excitement about their research with their students, training them to become part of the next generation of scientists who will push the frontiers of human knowledge. Explore majors, minors, concentrations, and academic programs in the Natural Sciences. 

 


News from Natural Sciences

BIOLOGY - An expert on child and adolescent development and an expert on host-microbe interactions have each been recognized by the Medical Research Foundation of Oregon of the Oregon Health and Science University. Karen Guillemin, professor and Philip H. Knight Chair in biology in the College of Arts and Sciences, received the Discovery Award for her significant contributions to health-related research.
PHYSICS - Physics Professor Richard Taylor blends art and science to create award-winning nature-inspired designs for indoor environments. In collaboration with designers in Austria, Taylor has been using computer-generated fractal patterns, which have been shown to reduce people’s stress levels by up to 60%.
PSYCHOLOGY - Adolescence isn’t a time of dysfunction; it’s a peak period of brain development, adaptability, and growth. Jennifer Pfeifer, a psychology professor at the College of Arts and Sciences, discusses at the 2025 TEDxPortland that it’s time to flip the script and recognize that young people are acting exactly as they’re wired to, and are capable of far more than we’ve been led to believe.

All news »

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Your Gift Changes Lives

Gifts to the College of Arts and Sciences can help our students make the most of their college careers. To do this, CAS needs your support. Your contributions help us ensure that teaching, research, advising, mentoring, and support services are fully available to every student. Thank you!

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World-Class Faculty in the Natural Sciences

Thien Nguyen, Associate Professor of Computer Science

Thien Nguyen

Associate Professor of Computer Science

Thien Nguyen is an expert in natural language processing, or the ability of artificial intelligence to understand, interpret and generate meaningful human language. He aims to enable computers to perform cognitive language-related tasks. His lab is among the first to develop deep learning algorithms for information extraction and text mining in natural language processing and data mining. His research on using natural language processing for multilingual learning earned him a Faculty Early Career Development Program (CAREER) award from the National Science Foundation.

Nguyen's recent research focuses on programming computers to improve the efficiency and safety of large language models (LLMs) across human languages while extracting valuable information about events like natural disasters, cyberattacks, disease outbreaks, and protests from news articles and other sources. His work seeks to deliver useful insights from diverse data and make these technologies accessible in low-resource languages that lack adequate data sets for training AI models.

Tien-Tien yu portrait

Tien-Tien Yu

Associate Professor of Physics, Institute for Fundamental Science

Tien-Tien is a theoretical particle physicist working at the interface of theory and experiment. She is particularly interested in understanding the nature of dark matter, whose existence is known through its gravitational effects on ordinary matter. She co-founded the SENSEI collaboration, an experiment utilizing silicon chips, much like those found in digital cameras, to search for dark matter. She was recently appointed to P5, an advisory group convened once a decade by the Department of Energy and National Science Foundation to help determine the next funded projects in particle physics.

On Jan. 14, 2025, Yu was one of nearly 400 scientists and engineers to receive the Presidential Early Career Award for Scientists and Engineers, the highest award the US government awards to early career scientists. 

A founding member of the group Particles for Justice, Yu is also a leader in advancing diversity, equity and inclusion in the physics field. In collaboration with the Comics and Cartoon Studies program, Yu created the UO Science and Comics Initiative. Read more about the initiative here.

Santiago Jaramillo, Associate Professor of Biology, Institute of Neuroscience

Santiago Jaramillo

Associate Professor of Biology, Institute of Neuroscience

Santiago Jaramillo leads a research group dedicated to understanding how the brain processes and interprets sounds. Using advanced techniques to monitor and manipulate neural activity in mice, along with computational approaches, he investigates how the brain filters, learns, and assigns meaning to sounds and how brain disorders can affect these processes. His interdisciplinary work, supported by the BRAIN Initiative of the National Institutes of Health and the National Science Foundation, includes collaborations with psychologists, bioengineers, theoretical neuroscientists, and linguists, with the long-term goal of developing neural interfaces to improve human-to-human and human-to-machine communication.

Beyond the lab, Jaramillo is deeply committed to broadening participation in STEM. He provides hands-on neuroscience experiences to middle school girls through the SPICE program, serves as an advisor for international programs engaging young minds in scientific critical thinking, and mentors college students from a wide range of backgrounds through programs such as NSF STEP-UP, SPUR, and the ESPRIT scholarship for aspiring K-12 science teachers. 

 

 

The new School of Computer and Data Sciences will be open in fall 2023 to students throughout the UO, with the goal of serving 2,000 undergraduate majors and students in existing and new undergraduate and graduate programs.

School of Computer and Data Sciences

The mission at SCDS is to empower a diverse population of students and faculty working to advance knowledge in computer and data science, train the next generation of scholars, and engage with the wider world to tackle interdisciplinary challenges.

To do this, we start by applying our knowledge and experience at home across the University of Oregon campus.

Explore the SCDS

Research in the Natural Sciences

Natural scientists use data to understand, predict, and work with naturally occurring phenomena on earth and in the universe. From highly controlled experiments in the lab to observations collected in the field, our findings help make sense of the natural world while driving advancements in society and technology that touch everyone. By expanding the limits of human knowledge, we provide a scientific foundation for helping people live better, longer lives.

Explore Other Majors and Minors in the College of Arts and Sciences

 

Meet our Dean

Welcome to the natural sciences, where our top-flight researchers bring students in to experience the biological, physical, and computational sciences. Working side-by-side with faculty who are equally committed to student success and scientific discovery, students learn valuable critical thinking skills through hands-on research in the lab, field, and classroom—from studying marine biology at the Oregon Institute for Marine Biology on our beautiful campus on the coast to coding advanced systems and analyzing complex data in the School of Computer and Data Science.

The research we’re conducting at the UO makes a tangible difference in our communities, our nation, and the world. For example, our chemists are pioneering the materials and techniques that will inspire the next generation of batteries for energy storage. Our psychologists are developing and testing cutting-edge interventions to improve mental health and wellbeing. Our geologists and environmental scientists are collaborating with governments, tribes, and industry partners to protect communities from earthquakes and wildfires.

You may or may not end up in a science career, but either way these experiences will change the way you experience and interact with the world. A healthy society depends on people who know how to gather evidence and critically analyze data. No matter what field you enter, scientific thinking will help you become a more thoughtful, engaged, and critical citizen in modern society.

We’re excited to explore the natural world with you.

Elliot Berkman   
Divisional Associate Dean, Natural Sciences

elliot berkman

Happening at CAS

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

UO College of Arts & Sciences (@uocas) • Instagram photos and videos

Oct 2
Uncovering Oregon History with the Chinese Diaspora Project 6:00 p.m.

The Oregon Chinese Diaspora Project uses community archaeology and public history to document the rich history and heritage of early Chinese Oregonians. Join archaeologist Chelsea...
Uncovering Oregon History with the Chinese Diaspora Project
October 2
6:00–7:00 p.m.
Museum of Natural and Cultural History

The Oregon Chinese Diaspora Project uses community archaeology and public history to document the rich history and heritage of early Chinese Oregonians. Join archaeologist Chelsea Rose for highlights of recent projects that showcase the extent and impact of the Chinese immigrant community in early statehood.

Oct 3
Department of History: Fall Get-Together 3:30 p.m.

History welcomes our students back to campus with a casual get-together! Join us for free pizza, hors d’oeuvres, and beverages; learn what’s happening in the...
Department of History: Fall Get-Together
October 3
3:30–6:00 p.m.
McKenzie Hall Courtyard

History welcomes our students back to campus with a casual get-together! Join us for free pizza, hors d’oeuvres, and beverages; learn what’s happening in the department this year; and connect with the History community.

Free and open to all History undergraduates, graduates, faculty, and staff!

 

Oct 6
Chemistry and Biochemistry Seminar - “Fluorescent Probes of RNA Structure: Photophysics and Applications in RNA-Based Sensing” 2:00 p.m.

UNIVERSITY OF OREGON DEPARTMENT OF CHEMISTRY & BIOCHEMISTRY Promotion to Associate Professor Seminar Julia Widom “Fluorescent Probes of RNA Structure:...
Chemistry and Biochemistry Seminar - “Fluorescent Probes of RNA Structure: Photophysics and Applications in RNA-Based Sensing”
October 6
2:00 p.m.
Willie and Donald Tykeson Hall 140

UNIVERSITY OF OREGON DEPARTMENT OF CHEMISTRY & BIOCHEMISTRY Promotion to Associate Professor Seminar

Julia Widom

“Fluorescent Probes of RNA Structure: Photophysics and Applications in RNA-Based Sensing”

 

Oct 8
Unlocking Graduate Student Career Resources 3:30 p.m.

Not sure where to start with career planning? You’re not alone! Join us for a hands-on workshop that introduces the many resources available to graduate students at the...
Unlocking Graduate Student Career Resources
October 8
3:30–4:30 p.m.

Not sure where to start with career planning? You’re not alone! Join us for a hands-on workshop that introduces the many resources available to graduate students at the University of Oregon. It’s never too early or too late to start shaping your career path. Learn how to make the most of career tools, campus programs, and professional development opportunities designed to help you explore options, build confidence, and take your next steps forward. Register for this free event at https://app.smartsheet.com/b/form/0198e2b551ef7f9fb7c0ca9a85f6e27c to receive the Zoom link.

This is the first of seven events as part of the GradEdge: Midweek Career Workshops series. Join us every Wednesday afternoon this term!