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A place to work on math homework, study with classmates, or speak to a math tutor.

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A place to work on math homework, study with classmates, or speak to a math tutor.

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Light refreshments will be served

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A place to work on math homework, study with classmates, or speak to a math tutor.

E-mail to Friend

E-mail to Friend

A place to work on math homework, study with classmates, or speak to a math tutor.

E-mail to Friend

E-mail to Friend

RKC lobby - financial clearance, materials pick up, water test tube collection

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Website: Event Website

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The competition is organized by Math-M-Addicts New York, Inc. The Bard Math Circle hosts this event to promote a culture of mathematical problem solving and mathematics enrichment in the mid-Hudson Valley.

Website: Event Website

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RKC lobby

Denise Feng

Genevieve Howell

Paul Jordan

Paul McLaughlin

Sarah Mount

Jacob Pooler

Wyatt Shell

Sarah Wegener

Yi Xiao

Reem-Kayden Center Laszlo Z. Bito '60 Auditorium

Swapan Jain

lecturing on the Chemistry prize

"for studies of the structure and function of the ribosome"

Michael Tibbetts

lecturing on the Physiology or Medicine prize

"for the discovery of how chromosomes are protected by telomeres and the enzyme telomerase"

Christian Bracher

lecturing on the Physics prize

"for the invention of an imaging semiconductor circuit - the CCD sensor"

Reem-Kayden Center Laszlo Z. Bito '60 Auditorium

Insights from Infrared Spectroscopy

A lecture by

Timothy Vaden

Candidate for the position in Chemistry

Reem-Kayden Center Laszlo Z. Bito '60 Auditorium

Ultrafast X-Ray Absorption Measurements of the Reductive Dissolution of Iron Oxide Nanoparticles

A lecture by

Jordan Katz

Candidate for the position in Chemistry

The reduction of Fe(III) is one of the most important chemical changes that takes place in the development of anaerobic soils and sediments, and the reductive dissolution of iron-bearing minerals by microbes plays a critical role in this process. Despite its importance in biogeochemistry, many questions remain about the mechanism of this electron transfer reaction, in part because the speed of the fundamental chemical steps renders them inaccessible to conventional study. Ultrafast time-resolved x-ray spectroscopy is a technique that can overcome this limitation and measure changes in oxidation state and structure occurring during chemical reactions that can be initiated by a fast laser pulse. We use this approach with ~100 ps resolution to monitor the speciation of Fe atoms in maghemite nanoparticles following photo-induced electron transfer from a surface-bound photoactive dye molecule.

Reem-Kayden Center Laszlo Z. Bito '60 Auditorium

A lecture by

Christopher LaFratta

Candidate for the position in Chemistry

RKC 111

Jenny Magnes

Vassar College

Physics department

We have shown that shapes representing functions can be opto-mechanically integrated and re-produced. This method involves linear opto-mechanical scanning. We show that angular opto-mechanical scanning can be used to classify shapes by symmetry groups. This information can then be used to identify objects mathematically based on their symmetries. Applications lie in the fields of psychology, quality control, and surveillance.

Reem-Kayden Center

RKC lobby

Come to the Science, Mathematics & Computing Division

ICE CREAM SOCIAL

Stop by to ask questions about courses being offered or find out more about majoring in the programs. Faculty members from each program will be there to answer questions.

Reem-Kayden Center, Room 101

John B. Ferguson

Health Professions Advisor

Reem-Kayden Center Laszlo Z. Bito '60 Auditorium

Sandy Simon

Laboratory of Cellular Biophysics

Rockefeller University

Most studies in biology focus on the "averaged" behavior. Either the average behavior of a molecule (which we study by its biochemical activity), the average behavior of a cell (which we study by its physiology) or the average behavior of an individual (which we study by population dynamics). However, important lessons can be learned from studying single events. Examples will be given from our work on a number of projects ranging from studying single HIV viruses as they assemble, single vesicles as they are release by a cell to signal or internalized into a cell, single cells as they die and single tumor cells as they metastasize through the body.

RKC pod 222

RKC lobby

RKC lobby

RKC lobby

Algebraic & Symbolic Computation Laboratory

Aleksandar Chakarov

Bella Manoim

Georgi Smilyanov

Adina-Raluca Stoica

Petar Stojanov

Biology Independent Research Students

Elena Dragomir

Rosa Levin

Jessica Philpott

Jega Jananie Ravi

Hannagh Shapero

Ilya Smirnoff

Rachel Steinhorn

Math Independent Research Students

Julia Bennett

Adam Chodoff

Liz Jimenez-Martinez

Tropical Ecology class

Erik Badger

Tessa Dowling

Genevieve Howell

Allison James

Hannah Liddy

Chantal Ludder

Elizabeth Lund

Sarah Mount

Loralee Ryan

Wyatt Shell

Marta Shocket

RKC 111

4:15 p.m.

Tina Zhang

4:40 p.m.

Scott McMillen

5:05 p.m.

RKC 111

4:15 p.m.

Sylvia Naples

4:40 p.m.

Tomasz Przytycki

5:05 p.m.

Zhechao Zhou

5:30 p.m.

Reem-Kayden Center Laszlo Z. Bito '60 Auditorium

"Developing a reversible and cell-specific system for inhibiting

protein synthesis in

Trillian Gregg

"Development of a Novel Method of Macromolecule Delivery into Cells"

RKC pod 222

RKC 111

4:15 p.m.

Ezra Winston

4:40 p.m.

Dexin Zhou

5:05 p.m.

RKC 111

Megumi Harada

McMaster UniversityThe motivation for symplectic geometry comes from classical physics, but the modern theory is related to many other areas of mathematics (not just physics) such as combinatorics, representation theory, topology, algebraic geometry, and many others. I will give a "mosaic" glimpse of this exciting field of research by briefly discussing the following inter-related topics, all of which appear (in one way or another) in my current work: 1) From classical physics to symplectic geometry: the magic of Hamiltonians;2) Horn's problem: how linear algebra and symplectic geometry yield polytopes and combinatorics;3) Getting topology out of a function: a bit of Morse theory;and finally, time permitting, I will say a few words about how the themes (1)--(3) come together in my current work on the study of the topology of hyperKahler Hamiltonian quotients.

RKC pod 222

Laszlo Z. Bito Auditorium-RKC

Kathy Corrado

Director, Onondaga County Crime Lab

Forensic DNA analysis is used extensively in criminal investigations to either associate or exonerate individuals from leaving their DNA at crime scenes. The Director of the Onondaga County Crime Lab in Syracuse NY will provide insight into the real life workings of a forensic DNA lab including the types of evidence typically encountered, current technologies being utilized in the field, the significance of DNA matches, and examples of interesting cases. The benefits and concerns of the use and expansion of forensic DNA databases will also be discussed.

RKC pod 222

RKC 111

Catherine O'Reilly

Biology program

Simeen Sattar

Chemistry program

In February, NASA launched a rocket on a mission to deploy a new satellite. The rocket malfunctioned, sending the satellite, in development for the past 9 years and part of $273 million dollar system, into the ocean. The rocket was carrying the NASA's new Orbiting Carbon Observatory, a satellite intended to assess carbon dioxide concentrations in the atmosphere. The information from this satellite would have helped researchers understand the distribution of this greenhouse gas, providing data to improve climate models and insights into the 'missing carbon sink'.

RKC 111

Gidon Eshel

Physics program

I will first review the concept of stability in the context of variance maintenance by dynamical systems, starting in 1-D and working our way to N-D. I will provide numerous examples, both analytic (i.e., with no physical relevance) and from physically realizable system such as the jet stream or Spotted Owl survival in response to conservation efforts. I will discuss two methods of obtaining dynamical system's governing linear operator: (1) using analytic linearization of non-linear operators (with the examples of mid-latitude perturbations on the jet, and the Lotka-Volterra equations of population dynamics; and (2) data-based (empirical) derivation using covariance of strobed states. I will then introduce normality (self-adjointness), discuss time-scales, and emphasize the distinction between asymptotic and transient stability. I will conclude with the complete solution of the stability problem, a solution comprising both eigen analysis (and thus asymptotic stability) and Singular value Decomposition of finite time propagators (addressing transient stability).

RKC 111

Harry Mairson

Brandeis University

Static program analysis is a form of predicting the future: it's what a compiler does to predict the behavior of your program, so that at run-time, the compiled version of your code runs faster or better.

Control flow analysis (CFA) is a canonical form of static program analysis performed by compilers, where the answers to questions like "can call site X ever call procedure P?" or "can procedure P ever be called with argument A?" are used to optimize procedure calls. In the interest of compile-time tractability, these questions are answered approximately, possibly including false positives. Much experimental work has been done on flow analysis. Here we describe, instead, some analytic characterizations of how hard CFA is.

Different versions of CFA are parameterized by their sensitivity to calling contexts. We show that the simplest version of CFA, called 0CFA, is complete for PTIME. In other words, it is as difficult to solve as any problem requiring polynomial time. A family of generalizations of 0CFA providing better analyses, called kCFA (k a positive integer), has never been implemented efficiently. We prove that this is necessary: the problem solved by kCFA is complete for EXPTIME---it is as difficult to solve as any problem requiring exponential time.

Each proof depends on fundamental insights about the linearity of programs, appealing to ideas from linear logic and the geometry of interaction---a linear logic semantics that is effectively an exact form of control-flow analysis.

This is joint work with David Van Horn (Brandeis University), presented at the 2008 ACM International Conference on Functional Programming.

Laszlo Z. Bito Auditorium-RKC

David Sloan Wilson

Director, EvoS program

Binghamton University

For complex reasons, evolutionary theory was restricted to the biological sciences and avoided for most human-related subjects for most of the 20th century. That is now rapidly changing. The 21st century will witness an integration for the study of humanity comparable to the integration of the biological sciences that took place during the 20th century (and continuing). I will review current trends and how they are embodied in EvoS, a campus-wide evolutionary studies program at Binghamton University that has received NSF funding to expand into a nationwide consortium.

RKC pod 222

RKC 111

Kristin Lane

Psychology program

Many mental activities occur automatically or unconsciously, including thoughts that are relevant to social perception, judgment, and action. This talk will present interactive illustrations of mental events that exist outside of conscious awareness or control; I will then show evidence that suggests that these ordinary processes can give rise to systematic social biases, which in turn can influence participation, interest, and performance in science and math domains. In particular, the talk will consider the gender disparity in science and mathematics in light of these findings from the mind sciences.

Laszlo Z. Bito Auditorium - RKC

Georgia E. Hodes

University of Pennsylvania

Women are twice as likely as men to suffer an episode of depression, but only between puberty and menopause. This suggests a relationship between reproductive hormones and depression in females. However, most theories on the etiology of depression are based on research done solely in males. This talk will focus on current research examining sex differences in the effects of antidepressants on neurogenesis and depression associated behaviors using a rodent model. Additionally, this talk will examine how reproductive hormones influence cognitive function and the response to stress across the lifespan. The understanding of how males and females differ may lead to better treatments for depression in both sexes.

RKC pod 222

RKC 111

Robert McGrail

Laboratory for Algebraic and Symbolic Computation

Bard College

The speaker introduces the notion of a quandle, an algebra that arises in knot theory and group theory, as well as the concept of connectedness in algebras. In particular, every finite, connected quandle has an unambiguous permutation cycle structure associated to it. This cycle-structure can be simply and efficiently computed from an operation table for the quandle, and so serves as a useful combinatorial invariant for the classification of finite, connected quandles. The speaker will introduce an improvement to the isofilter program of the Prover9/Mace4 automated deduction suite based upon this invariant. Moreover, he will discuss the implications of this work to the goal of completing a computational classification of the variety of finite quandles. This is joint work with Aleksandar Chakarov (Bard '10).

Laszlo Z. Bito Auditorium - RKC

Michele Caggana, Sc.D, FACMG

Director, New York State Department of Health, Newborn Screening ProgramNewborn screening began in New York State in 1965 with the addition of a single metabolic disorder called phenylketonuria (PKU). If you drink diet soda, you may see the bottle warning phenylketonurics not to drink these beverages. That's because prior to 1965, people who had PKU became mentally retarded and often were institutionalized because their disease was caught too late. With the advent of newborn screening, the Wadsworth Center, New York State's Public Health Laboratory could identify those affected babies at birth, before they suffered significant cognitive impairment by sampling a few drops of blood from a newborn's heel. By limiting intake of phenylalanine and protein in general, affected infants could live and function normally. Newborn screening has changed a lot over the years. The Program in New York is the largest, most comprehensive free program in the United States. We now screen for 45 disorders and use sophisticated equipment. This discussion will start in the early 60's, bring us to current activities in Albany, and we will glimpse into the future as well. In addition, factors that have impacted newborn screening in recent years will be discussed.

RKC pod 222

RKC pod 222

Laszlo Z. Bito Auditorium-RKC

Cathy Gibson

Skidmore College

As integrators of the landscape, streams are heavily impacted by land-use change such as urbanization. Changes in ecosystem structure associated with urbanization are well known, but how ecosystem function changes as a result of these structural changes is not well understood. This talk will examine how urbanization affects nutrient cycling and whole system metabolism in both small headwater streams and large rivers. Maintenance of downstream water quality depends on the ability of stream to retain and process nutrients. This talk will examine what drives nutrient uptake in urban streams, how it differs from forested counterparts, and discuss implications for downstream water quality. In addition, we will look at the impact of hydrological modifications via dams affects these functions, as well.

RKC 102

Jeff Suzuki

Brooklyn College

What do a musical scale, a calendar, and the U.S. flag have in common? They are all solutions to the problem of finding a set of whole numbers that match a particular property. The solutions rely on the use of Diophantine equations and continued fractions, which offer the best rational approximation to a given real number.

RKC pod 222

Laszlo Z. Bito Auditiorium-RKC

S. James Gates, Jr.

John S. Toll Professor of Mathematics

Director, Center for String and Particle Theory

University of Maryland

Gauge theories seem to describe all of the known forces in Nature...except gravity as it is normally viewed. However, using the Cartan approach to the geometry of curved manifolds, even gravitation is seen to be almost identical to other gauge theories. This talk will be accessible to math and physics majors.

Laszlo Z. Bito Auditorium-RKC

Richard S. Ostfeld

Senior Scientist, Cary Institute of Ecosystem Studies

The rate of species extinctions, both globally and from local communities, continues to accelerate. In recent years, ecologists have asked, to what degree will ecological communities lose their ability to provide “ecosystem services” as biodiversity is lost? This talk will describe how biodiversity loss affects the risk and incidence of zoonotic diseases (diseases transmitted from non-human vertebrates to humans). Zoonotic diseases, including avian influenza, Ebola, SARS, and plague, comprise the majority of so-called emerging infectious diseases. Most zoonotic pathogens can infect several wildlife host species. However, hosts differ strongly in their capacity to support population growth of the pathogen. Some hosts act as reservoirs that amplify pathogens, whereas others act as “dilution hosts” that can absorb but do not contribute pathogens. Therefore, the diversity and species composition of the host community is fundamentally important in determining pathogen transmission and disease dynamics. Reservoir hosts tend to be abundant, widespread species that are resilient to human-caused environmental degradation. In contrast, dilution hosts are often sensitive to environmental degradation, disappearing when biodiversity is lost. This presentation will describe three case studies of diseases – Hantavirus Pulmonary Syndrome, West Nile virus encephalitis, and Lyme disease – that are exacerbated when biodiversity is reduced. Explorations of the mechanisms that underlie the increase in disease risk with reduced biodiversity suggest that other zoonotic diseases will behave similarly. These case studies show that the current biodiversity crisis is likely to increase human exposure to many infectious diseases.

RKC pod 222

RKC 111

Peter Golbus,

ASC Lab, Bard College

This work presents a method for associating a class of constraint satisfaction problems to a three-dimensional knot. Given a knot, one can build a knot quandle, which is generally an inﬁnite free algebra. The desired collection of problems is derived from the set of invariant relations over the knot quandle, applying theory that relates ﬁnite algebras to constraint satisfaction problems. This allows us to develop notions of tractable and NP-complete quandles and knots. In particular, we show that all tricolorable torus knots and all but at most 2 non-trivial knots with 10 or fewer crossings are NP-complete.

Laszlo Z. Bito Auditorium - RKC

Jason Schwarz

Laboratory of Sensory Neuroscience, Rockefeller University

The teleost fish Aplocheilus can locate and capture its insect prey on the surface of the water without any visual input. An array of mechanosensory organs on the crown of the fish's head, the neuromasts, detect water surface waves in a manner analogous to the detection of sounds by tetrapods. The fish compares the intensities and latencies of stimuli at various neuromasts to determine the direction of the wave source and analyzes the wave spectrum to determine how far the wave has propagated. In view of the robustness of the behavior and the accessibility of the nervous system, prey localization by Aplocheilus offers us an experimental system useful in the study of fast neural signal processing.

RKC pod 222

RKC 111

Rebecca Ryan

MAT Program in Mathematics

Bard College

In 1973 Fischer Black and Myron Scholes settled a longstanding problem in economics: how to determine the fair value of a stock option. They realized that holding specific positions in stocks and in an option could render a portfolio instantaneously risk-free. Having eliminated the risk, solving for the value of an option became a feasible mathematical procedure. This revolutionary insight sparked the explosion of the now multi-trillion dollar derivatives market.

In this presentation, I will reconstruct the Black-Scholes portfolio from the ground up, assuming basic economic or mathematical knowledge from the audience. First, learn how investors use options, stocks, short positions, and long positions to speculate and to hedge. Then, explore how casinos hedge games to cover payouts. Finally, see how the Black-Scholes portfolio is analagous to a casino's hedging strategy.

Reem-Kayden Center Laszlo Z. Bito '60 Auditorium

Steven Gavlik

Siena College

Most vertebrates pass through two or more distinct life stages. Examples include hatching or birth (larval to juvenile transitions) and puberty (a juvenile to adult transition). Hormones of the endocrine system are primary controllers of the anatomical and physiological changes occurring during these life stage transitions. Fish undergo these transitions as free-living organisms, which allows for interactions between the hormonal control systems and the environment. This talk will present findings about the hormonal controls of two important fish life stage transitions – metamorphosis of Summer flounder and sex determination in American eel.

RKC pod 222

RKC 111

John Cullinan

Mathematics program

Dynamical systems have been studied in the context of population modeling, fractal geometry, and topology for much of the 20th century, but it is only recently that they have been studied for their number-theoretic applications. In fact, many open questions in number theory can be rephrased in terms of dynamical systems. This talk will be an introduction to the arithmetic of polynomial dynamics and we will also discuss our recent work on the ramification of iterated rational functions.

RKC pod 222

RKC 111

Ethan Bloch

Mathematics Program

The angle defect, which goes back to Descartes, is a very simple way of measuring the curvature at the vertices of a polyhedral surface in Euclidean space. The angle defect is the polyhedral (and much simpler) analog of Gaussian curvature, as studied in differential geometry. Although the angle defect is the only plausible definition of curvature at the vertices of a polyhedral surface, it turns out that there is more than one possible way to generalize this definition to arbitrary finite 2-dimensional polyhedra, and to higher dimensional polyhedra. This talk will present a few different such generalizations, and will discuss a way to compare these different generalizations in dimension 2. The talk will be elementary, though a willingness to consider higher dimensional polyhedra is required.

RKC pod 222

Reem-Kayden Center Laszlo Z. Bito '60 Auditorium

Christian Bracher, Physics program

John Ferguson, Biology program

Michael Tibbetts, Biology program

Reem-Kayden Center Laszlo Z. Bito '60 Auditorium

Stephanie Oleksyk (SES '06)

Learn more about the Semester in Environmental Science at Woods Hole, MA.

Study environmental science in an array of ecosystems with researchers at one of the world's premier centers for biological research and education! The Semester in Environmental Science (SES) is a hands-on semester of courses taught in beautiful Woods Hole by some of the field's top scientists. The aim of the core curriculum is to study global problems in a local context. It covers ecosystem biogeochemistry and the biology of coastal bays, ponds, wetlands and forests of Cape Cod. Students conduct independent research projects and make connections with researchers that can lead to internships and jobs at the MBL.