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Click here for:Date: | Thursday |
Time: | 1:30-3:00 PM |
Place: | 106A Studio Room, Classroom Building, OSU |
& Nielsen Hall, Room 365, OU | |
& Online Access | |
Inquiries: | joseph.haley@okstate.edu or kao@nhn.ou.edu |
Date: | Thursday |
Time: | 3:30-4:30 PM |
Place: | PS 110 |
Inquiries: | joseph.haley@okstate.edu or mario.borunda@okstate.edu |
Date: | Friday (bi)weekly |
Time: | 2:30 PM |
Place: | PS 147 |
Inquiries: | perk@okstate.edu or mario.borunda@okstate.edu |
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First week of classes
No talks scheduled.
Second week of classes.
No talks scheduled
Monday, September 3: Labor Day (University holiday)
Speaker: | Dr. Patricia LiWang |
Chemistry & Chemical Biology Program | |
School of Natural Sciences | |
University of California at Merced | |
Date: | Thursday, September 6, 2018 |
Time: | 3:30 PM |
Place: | Room 103 |
Title: | HIV Prevention: Biochemistry and More |
Despite recent gains in HIV treatment, two million people per year are still being newly infected with HIV, and most of those are heterosexual women. Sub-Saharan Africa remains particularly troubling, with clinical trials showing some prevention methods being moderately effective in mature women, but not effective in preventing infection in young women (under 25 years old). My lab studies the structure and biochemical mechanism of protein HIV entry inhibitors. This work has recently led us toward practical use of these inhibitors in insertable devices that could be used to protect young women from HIV infection. The talk will cover our research in the biochemistry of two potent HIV inhibitory proteins, Griffithsin (a mannose-binding lectin that binds the surface of HIV) and 5P12-RANTES (a protein that binds the human cell surface, blocking HIV entry). Then I will discuss how our research plan also includes the practicality of getting these inhibitors into a form that would be effective as an insertable object to prevent the sexual spread of HIV. This involves not just inhibitory potency, but also a whole range of other concerns that are not usually encountered by a scientist, including cost and, possibly more importantly, attractiveness to the user.
Note: Refreshments will be served in Room 107 at 3:00 PM. All students are welcome!
Speaker: | Dr. Ramon E. Lopez |
Department of Physics and Co-Director of UTeach Arlington | |
University of Texas at Arlington | |
Date: | Thursday, September 13, 2018 |
Time: | 3:30 PM |
Place: | PS 110 |
Title: | The Science of Space Weather |
As our technological civilization becomes more dependent of space technology, we become more vulnerable to changes in the space environment in which that technology functions. These environmental changes are known as “space weather.” In this talk I will discuss what drives space weather and how it affects human activities both in space and on the Earth. I will also discuss recent efforts to create physics-based numerical simulations of the magnetosphere to be used in forecasting space weather.
Note: The traditional student-speaker chat will begin in Physical Sciences Room 147 at 3:00 PM. All students are welcome! Refreshments will be served.
Speaker: | Dr. Ramon E. Lopez |
Department of Physics and Co-Director of UTeach Arlington | |
University of Texas at Arlington | |
Date: | Friday, September 14, 2018 |
Time: | 11:30 AM |
Place: | PS 101 |
Title: | Some Things Physicists Have Learned about Physics Education by Doing Research in Cognitive Science |
Education is something that concerns all faculty in university science departments. Physics as a discipline has been a leader in taking that general concern and transforming it into a sub-discipline of the field: Physics Education Research (PER). PER is based on cognitive science, and in fact some important aspects of cognitive science (such as studies of experts versus novices) have been done with physics as the context for the investigations. Today, there are a number of PER groups in physics departments around the world, doing research in applied cognitive science that focuses on issues of teaching and learning physics. These physicists are publishing papers in peer-reviewed journals, getting grants, and graduating students with Ph.D.s, just like every other area of physics. In this talk I will touch on several findings from cognitive science that have huge implications for how we teach physics, as well as some results from PER that are leading the way in university science education across all fields.
Speaker: | Dr. Pere Mujal Torreblanca |
Departament de Física Quàntica i Astrofísica | |
& Institut de Ciències del Cosmos (ICCUB) | |
Universitat de Barcelona, Spain | |
Date: | Thursday, September 20, 2018 |
Time: | 3:30 PM |
Place: | PS 110 |
Title: | Quantum Correlations and Degeneracy of Identical Bosons in a 2D Harmonic Trap |
The system of few bosons in a 2D harmonic trap is considered, and also the N-boson case, when it is feasible [1,2,3]. The spectral properties are scrutinized and, in particular, analytic expressions are derived for the degeneracies and their breaking for the lower-energy states at small but finite interactions. We demonstrate that the degeneracy of the low-energy states is independent of the number of particles in the noninteracting limit and also for sufficiently weak interactions. In the strongly interacting regime, we show how the many-body wave function develops holes whenever two particles are at the same position in space to avoid the interaction, a mechanism reminiscent of the Tonks–Girardeau gas in 1D [3]. The evolution of the system as the interaction is increased is studied by means of the density profiles, pair correlations, and fragmentation of the ground state for N=2, 3, and 4 bosons.
Note: The traditional student-speaker chat will begin in Physical Sciences Room 147 at 3:00 PM. All students are welcome! Refreshments will be served.
Speaker: | Dr. Emrah Turgut |
Department of Physics | |
Oklahoma State University | |
Date: | Friday, September 21, 2018 |
Time: | 12:30 PM |
Place: | PS 147 |
Title: | Out-of-Equilibrium Dynamics in Magnetic Solid-State Systems |
We all know that magnetic materials lose their magnetization at high temperatures that called Curie temperature. In this classical-physics experiment, subsystems in these magnetic materials, including charge, spin, and lattice, are in equilibrium. In other words, they all have the same temperature. On the other hand, recently developed ultrafast laser pulses with few-fs pulse duration allow to drive these subsystems out-of-equilibrium and have different temperatures to each subsystem. These temperatures can have a completely distinct transient behavior until the system reaches to the equilibrium. Then, the question becomes that how the magnetization follows all different temperatures of charge, spin, and lattice systems. Even, we can ask that if a temperature of such non-equilibrium states is a valid description of a complicated picture of correlated solid-state systems. This concept also appears in storage and logic applications about how fast a nanomagnet can switch in a controllable way. After introducing the concept, I will talk about a couple of experiments in pure elements and magnetic alloys and multilayers to show how different nanoscale configurations drastically alter our fundamental understanding of non-equilibrium physics in magnetic materials. Finally, I will briefly mention our future interests to use these transient techniques to unveil mysteries properties in novel materials.
Speaker: | Dr. Tak-Sing Wong |
Department of Mechanical and Nuclear Engineering | |
and Materials Research Institute | |
Pennsylvania State University, University Park, PA | |
Date: | Thursday, September 27, 2018 |
Time: | 3:30 PM |
Place: | PS 103 |
Title: | Nature Inspired Liquid-Engineered Materials |
Natural organisms have often served as blueprints for the design of highly functional engineered materials. From the Nepenthes pitcher plant to biological cell membranes, liquids or liquid-like materials have been utilized by biological species for various important functions ranging from liquid repellency to selective filtration. In this seminar, I will discuss two classes of nature-inspired functional materials enabled by the unique properties of liquids: Slippery Liquid-Infused Porous Surfaces (SLIPS) and self-healing liquid membranes. SLIPS is modelled after the slippery rim of a Nepenthes pitcher plant, which has resolved the longstanding limitations of the conventional lotus-leaf-inspired liquid repellent materials in repelling various simple and complex liquids, as well as resisting fouling from bacteria to blood and ice. Self-healing liquid membranes — inspired by the cellular phagocytosis — enable reverse particle filtration which cannot be accomplished by any conventional solid-based membrane technologies. Perspectives on how these nature-inspired liquid-based materials may impact future applications in materials, energy, water, and health will be discussed.
Note: Coffee will be served in PS 105 at 3:00 pm.
Speaker: | Don W. Carona |
Department of Physics & Astronomy | |
Texas A&M University | |
Date: | Thursday, October 4, 2018 |
Time: | 3:30 PM |
Place: | PS 110 |
Title: | Texas A&M University, Physics & Astronomy Teaching Observatory: |
An Overview of Facilities, Education, Research and Outreach Programs |
An astronomical observatory of any nature can greatly improve the academic experience. The history of the Teaching Observatory begins in 1973 with the first permanent observing structure used by students to observe the night sky. I will discuss the growth of the observing facilities and equipment and how it has impacted astronomical education and research. Our long history of outreach to the community will also be discussed in relation to its impact on state and local academic programs.
See also the following news article.
Note: The traditional student-speaker chat will begin in Physical Sciences Room 147 at 3:00 PM. All students are welcome! Refreshments will be served.
Speaker: | Dr. Doreen Wackeroth |
Department of Physics | |
University at Buffalo, State University of New York | |
Date: | Thursday, October 11, 2018 |
Time: | 1:30 PM |
Place: | PS 147, OSU |
& Nielsen Hall, Room 365, OU | |
& Online Access | |
Title: | Selected Topics in Electroweak Physics |
Speaker: | Dr. Angela M. Burger |
Department of Physics | |
Oklahoma State University | |
Date: | Thursday, October 18, 2018 |
Time: | 1:30 PM |
Place: | PS 147, OSU |
& Nielsen Hall, Room 365, OU | |
& Online Access | |
Title: | Measurement of Vector Boson Polarisation in WZ Production at the LHC with the ATLAS Detector |
A measurement of the WZ diboson production, using leptonic decays of the bosons, is presented. The measurement uses data from proton-proton collisions with an integrated luminosity of 36.1 fb−1 at a center-of-mass energy of √s = 13 TeV collected in 2015 and 2016 by the ATLAS experiment at the LHC. WZ events can be produced via a channel containing a triple-gauge boson coupling vertex, the coupling strength is given by the Standard Model. Any deviation from the Standard Model couplings could be visible in a precise measurement of the WZ production cross section. This talk features as well the first measurement of the boson polarisation in pair-produced events in hadronic collisions using angular distributions of the boson decay products.
Friday, October 19: Students’ Fall Break (No Classes)
No talks scheduled.
Cancelled, as fight of Dr. Joseph Zennamo was delayed due to weather.
Speaker: | Dr. Joseph Zennamo |
Neutrino Division, Fermilab | |
Oklahoma State University | |
Date: | Thursday, November 1, 2018 |
Time: | 3:30 PM |
Place: | PS 110 |
Title: | Discovering the Undetectable: (Sterile) Neutrino Oscillations |
Since their discovery in 1956 neutrinos have remained an enigma. Proposed in 1930 to explain the energy spectrum of electrons emerging from nuclear decays it was not until 1998 that they were discovered to be massive. The difficulty of studying neutrinos is driven by the fact that they rarely interact, requiring large detectors and intense sources. This colloquium will discuss the continued puzzles which neutrinos provide us.
Note: The traditional student-speaker chat will begin in Physical Sciences Room 147 at 3:00 PM. All students are welcome! Refreshments will be served.
Speaker: | Dr. David Curtin |
Department of Physics | |
University of Toronto | |
Date: | Thursday, November 8, 2018 |
Time: | 1:30 PM |
Place: | PS 147, OSU |
& Nielsen Hall, Room 365, OU | |
& Online Access | |
Title: | Particle Physics at the Lifetime Frontier |
Speaker: | Dr. Kieran Mullen |
OU Presidential Professor | |
Homer L. Dodge Department of Physics and Astronomy | |
University of Oklahoma | |
Date: | Thursday, November 8, 2018 |
Time: | 3:30 PM |
Place: | PS 110 |
Title: | Hot News from the World of Thermal Transport |
Heating, the incoherent transport of energy from one system to another, seems like a prosaic topic for modern research. However, its study is fundamental not only to basic ideas in statistical mechanics but applications ranging from integrated circuits to airplanes. After a general introduction to condensed matter physics and open questions in the field, I will discuss our search for materials with improved thermal conductivity. I will show how we use genetic algorithms to search the space of available designs, as well as report some preliminary experimental results. Our collaborators have found that simple functionalization of carbon nanotubes can triple the thermal conductivity of polymer composites. I will conclude with some avenues of future research in designing materials for thermal transport.
Note: The traditional student-speaker chat will begin in Physical Sciences Room 147 at 3:00 PM. All students are welcome! Refreshments will be served.
Speaker: | Dr. Huaike Guo |
Homer L. Dodge Department of Physics and Astronomy | |
University of Oklahoma | |
Date: | Thursday, November 15, 2018 |
Time: | 1:30 PM |
Place: | PS 147, OSU |
& Nielsen Hall, Room 365, OU | |
& Online Access | |
Title: | Search for BSM Physics with Collider Signatures and Gravitational Waves from Electroweak Phase Transition |
Thanksgiving: University holiday, Thursday-Friday, November 22-23
Speaker: | Dr. Kuver Sinha |
Homer L. Dodge Department of Physics and Astronomy | |
University of Oklahoma | |
Date: | Thursday, November 29, 2018 |
Time: | 1:30 PM |
Place: | PS 147, OSU |
& Nielsen Hall, Room 365, OU | |
& Online Access | |
Title: | Axions: What can we learn from neutron stars and X-ray astronomy? |
Prefinals Week
Speaker: | Sgt. Adam Queen #53 |
OSU Police Department | |
Oklahoma State University | |
Date: | Thursday, December 6, 2018 |
Time: | 3:30 PM |
Place: | PS 110 |
Title: | Training Session: Shots Fired |
This class is designed for the civilians who may encounter an active shooter situation. Steps taken by the University to reduce or prevent a situation such as these will be discussed as well as behavioral traits known as pre-incident indicators. Information will be provided regarding suggestions and options should someone find themselves encountering a person with a weapon. Participants in the class will also know what to expect from the police upon our arrival and will also be taught how to better communicate with the OSU Police Department.
Note: The traditional student-speaker chat will begin in Physical Sciences Room 147 at 3:00 PM. All students are welcome! Refreshments will be served.
Finals Week
No talks scheduled
No talks scheduled
Last Updated:
This page was prepared by Helen Au-Yang and Jacques H.H. Perk.
jhhp@jperk.phy.okstate.edu