<< Wednesday, February 26, 2020 >>

## Wednesday, February 26, 2020

### Plant and Microbial Biology Seminar: "The function and evolution of phased, secondary siRNAs in plant reproduction"

Seminar | February 26 | 12-1 p.m. | 101 Barker Hall

Blake Meyers, Principle Investigator, Donald Danforth Plant Science Center and University of Missouri

Blake's work focuses on genome-scale studies of RNA and components of RNA silencing pathways, emphasizing plant reproductive biology and the evolution of plant small RNAs. Blake has been involved with next-generation DNA sequencing since its earliest days, and he has developed a number of applications of this technology, including computational methods, that have had a deep impact on plant genomics.

### CITRIS Research Exchange - Jen Schradie

Seminar | February 26 | 12-1 p.m. | Sutardja Dai Hall, Banatao Auditorium

CITRIS and the Banatao Institute

The Revolution That Wasn’t: How Digital Activism Favors Conservatives

The internet has been hailed as a leveling force that is reshaping activism. From the Arab Spring and Occupy Wall Street to Black Lives Matter and #MeToo, digital activism seemed cheap, fast, and open to all. Now this celebratory narrative finds itself competing with an increasingly sinister story as...   More >

### Adam Anderson--Three Centuries of Comparative Demographic Analysis of Ancient Social Networks: A Demography Brown Bag Talk

Colloquium | February 26 | 12-1 p.m. | 2232 Piedmont, Seminar Room

Adam Anderson, Postdoctoral Fellow & Lecturer, Digital Humanities, UC Berkeley

A lunch time talk and discussion session, featuring visiting and local scholars presenting their research on a wide range of topics of interest to demography.

### Workshop on Getting Approval for Human Subjects Research--led by OPHS staff

Workshop | February 26 | 1-3 p.m. | 9 Durant Hall

Leah Carroll, Program Manager, Haas Scholars Program

Staff from the Office of the Protection of Human Subjects and the Office of Undergraduate Research will present on how undergraduates should prepare a proposal (protocol) to receive approval for human subjects related research projects.

### Topology Seminar (Introductory Talk): Background Material

Seminar | February 26 | 2:10-3 p.m. | 740 Evans Hall

Matthew Hedden, Michigan State University

Department of Mathematics

I'll discuss classical results and topological constructions motivating and underlying the main talk. This talk will be aimed at graduate students who have fairly little background in low-dimensional topology.

### BLISS Seminar: Blockchains, branching random walks and the number e

Seminar | February 26 | 3-4 p.m. | 400 Cory Hall

David Tse, Stanford

Abstract:
Blockchains are probabilistic consensus protocols. A key performance measure of a blockchain is its security threshold: this is the maximum tolerable fraction of the total network resources an adversary can have such that the protocol is guaranteed to reach consensus with high probability regardless of the adversary's attack strategy. Many blockchains exhibit critical behavior around...   More >

### OPT Doc Check Workshop

Workshop | February 26 | 3-4 p.m. | 255 Dwinelle Hall | Note change in location

Attend an interactive one hour workshop to review your OPT application with an international student adviser! This is a group workshop that allows you to follow along as a BIO adviser leads you through the application step by step.

During this workshop, you will go over the required documents, how to fill out forms, and most common mistakes in the application. Please bring ALL required...   More >

### Bay Area Microlocal Analysis Seminar: Landis conjecture in dimension two

Seminar | February 26 | 3-4 p.m. | Stanford University, Room 383N

Eugenia Malinnikova, Stanford University

Department of Mathematics

Abstract: In 1960’s Landis conjectured that a nontrivial solution to a time-independent Schr ̈odinger equation with bounded potential cannot decay faster than exponentially. In 1992 the conjecture was disproved by Meshkov, who constructed a counter example and found the optimal rate of decay for complex valued solutions. The conjecture is still open for the case of real valued potentials. We...   More >

### Bay Area Microlocal Analysis Seminar: Fredholm theory for the Laplacian near zero energy on asymptotically conic spaces

Seminar | February 26 | 3-4 p.m. | Stanford University, Room 380C

András Vasy, Stanford University

Department of Mathematics

Abstract: In this talk I will discuss and compare two approaches via Fredholm theory to resolvent estimates for the Laplacian of asymptotically conic spaces (such as appropriate metric perturbations of Euclidean space), including in the zero spectral parameter limit.

### Probability Seminar: Lipschitz Minorants of Lévy Processes

Seminar | February 26 | 3:10-4 p.m. | 330 Evans Hall

Mehdi Ouaki, U.C. Berkeley

Department of Mathematics

Abstract :The $\alpha$-Lipschitz minorant of a function is the greatest $\alpha$-Lipschitz function dominated pointwise by the function, should such a function exist. We will discuss this construction when the function is a sample path of a (2-sided) Lévy process. The contact set is the random set of times when the sample path touches the minorant. This is a stationary, regenerative set. We will...   More >

### Lipschitz Minorants of Lévy Processes

Seminar | February 26 | 3:10-4 p.m. | 330 Evans Hall

Mehdi Ouaki, U.C. Berkeley

Department of Statistics

The \alpha-Lipschitz minorant of a function is the greatest \alpha-Lipschitz function dominated pointwise by the function, should such a function exist. We will discuss this construction when the function is a sample path of a (2-sided) Lévy process. The contact set is the random set of times when the sample path touches the minorant. This is a stationary, regenerative set. We will provide a...   More >

### Joint Wireless Communication and Sensing in mmWave and Terahertz Spectrum

Seminar | February 26 | 4-5 p.m. | Soda Hall, HP Auditorium (306)

Yasaman Ghasempour, Ph.D. Candidate, Rice University

Millimeter-wave and terahertz bands are emerging as the most promising spectrum to meet the data-rate and latency demands of future wireless applications, including virtual reality and autonomous cars. My research builds a foundation for joint communication and sensing in such high-frequency regimes.

### ERG Colloquium: Sameer Shah: A drought-free Maharashtra? Politicizing the inequitable and unsustainable outcomes of state-sponsored livelihood adaptation for rain-dependent agriculture

Colloquium | February 26 | 4-5:30 p.m. | 126 Barrows Hall

Sameer Shah, University of British Columbia

Energy and Resources Group

Following the worst drought in 40-years (2012), the western Indian state of Maharashtra launched a flagship drought-relief program intended to make 20,000 villages “drought-free” by 2019. The program – promoting the capture and conservation of “green” (soil
moisture) and “blue water” (runoff) to reduce the risks of crop failure in drought-prone villages – mirrored an integrative land and...   More >

### Applied Math Seminar: Probing strongly correlated systems: Towards a quantum computational advantage

Seminar | February 26 | 4-5 p.m. | 939 Evans Hall

Guang-Hao Low, Microsoft Research

Department of Mathematics

The properties of strongly correlated systems are of great interest but have often been challenging to elucidate. Some of these difficulties may be overcome by programmable digital quantum computers, which harness the quantum-mechanical nature of reality to simulate quantum systems and promise an advantage over computers rooted in classical physics. In this talk, I review developments in quantum...   More >

### Contextualizing Coronavirus: Scientific, Political, Societal and Economic Impacts of the 2019 Novel Coronavirus

Panel Discussion | February 26 | 4-6 p.m. |  Sibley Auditorium, Bechtel Engineering Center

Fenyong Liu, Professor of Infectious Diseases, UC Berkeley Public Health; Yan Long, Assistant Professor of Sociology, UC Berkeley; Gerard Roland, E. Morris Cox Professor of Economics and Professor of Political Science, UC Berkeley; John K. Yasuda, Assistant Professor of Chinese Politics, Indiana University, Bloomington; Vinod (Vinnie) Aggarwal, Travers Family Senior Faculty Fellow and Professor of Political Science, UC Berkeley; Sean Randolph, Senior Director, Bay Area Council Economic Institute

Kevin O'Brien, Walter and Elise Haas Professor of Asian Studies; Alann P. Bedford Professor of Asian Studies; Professor of Political Science; & Director of the Institute of East Asian Studies, UC Berkeley

Coronaviruses are a family of viruses that cause illnesses ranging from the common cold to more severe diseases such as Middle East Respiratory Syndrome (MERS) and Severe Acute Respiratory Syndrome (SARS). A novel coronavirus (nCoV) appeared in Wuhan, China in early December 2019 and has quickly spread across the globe, leading to the closure of borders, the lockdown of Chinese cities, fears...   More >

### Understanding High Voltage Reactivity in Transition Metal Oxide Li-ion Battery Cathode Materials/Evaluating the interactions between carbon nanotube neurosensors and their biological environments

Colloquium | February 26 | 4-6 p.m. | 180 Tan Hall

Joe Papp, Ph.D. student in the McCloskey Group; Darwin Yang, Ph. D. student in the Landry Group

College of Chemistry

Li-ion batteries are the dominant technology for rechargeable energy storage given their optimal combination of energy density, lifetime, safety, and cost compared to other battery chemistries /Single-walled carbon nanotubes (SWCNTs) non-covalently modified with DNA have been widely implemented as probes for near-infrared molecular sensing and imaging in biological systems

### Topology Seminar: Corks, Involutions, and Heegaard Floer homology

Seminar | February 26 | 4:10-5 p.m. | 3 Evans Hall

Matthew Hedden, Michigan State University

Department of Mathematics

I'll discuss recent work with Irving Dai and Abhishek Mallick in which we study involutions on homology spheres, up to a natural notion of cobordism. Using this notion, we define a 3-dimensional homology bordism group of diffeomorphisms which refines both the homology cobordism group and the bordism group of diffeomorphisms. The subgroup generated by involutions provides a new algebraic framework...   More >

### Caminos de la Ciencia - La Biología de la Liberación

Presentation | February 26 | 5:30-7:30 p.m. | César E. Chávez Branch, Oakland Public Library, Suite 271

3301 East 12th Street, Oakland, CA 94601

Ignacio Chapela, Department of Environmental Science, Policy and Management

Science@Cal

Esta presentación será en español

La Biología no es sólo una exploración de curiosidades naturales, ni tampoco sólo una herramienta para la manipulación de los seres vivos. No: en su más potente forma, la Biología es el portal por el cual podemos reflexionar sobre nuestra relación con el universo viviente, nada menos que la manera en que entendemos nuestro lugar como parte de ese universo....   More >

### Toastmasters on Campus Club: Learn public speaking

Workshop | January 15 – December 16, 2020 every Wednesday | 6:15-7:30 p.m. | 3111 Etcheverry Hall

Toastmasters on Campus

Toastmasters has been the world leader in teaching public speaking since 1924. Meetings are an enjoyable self-paced course designed to get you up and running as a speaker in only a few months.

Find out more at toastmasters.org or just drop by one of our meetings to get started.

Toastmasters on Campus has earned Toastmasters' highest honor, the...   More >