Physical Sciences and Mathematics | Open Access Articles

Did My Eighth Grade Girlfriend's Dad Cause My Psychosis? A Brain In Flames, Peter Durning

The Synapse: Intercollegiate science magazine

No abstract provided.

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Coral Reefs, Julia Utset

The Synapse: Intercollegiate science magazine

No abstract provided.

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Obie Rocks: A Quick Look At Some Of Oberlin's Very Own Rock Jewels, Elena Hartley

The Synapse: Intercollegiate science magazine

No abstract provided.

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Deeper Than Ink: The Cybernetic Augmentation Of The Human Body, Russell Jaffe

The Synapse: Intercollegiate science magazine

No abstract provided.

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Reforming Mathematics: Why Are People Scared Of Math?, Oliver Meldrum

The Synapse: Intercollegiate science magazine

No abstract provided.

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No Return To Classical Reality, David Jennings, Matthew S. Leifer

Mathematics, Physics, and Computer Science Faculty Articles and Research

At a fundamental level, the classical picture of the world is dead, and has been dead now for almost a century. Pinning down exactly which quantum phenomena are responsible for this has proved to be a tricky and controversial question, but a lot of progress has been made in the past few decades. We now have a range of precise statements showing that whatever the ultimate laws of Nature are, they cannot be classical. In this article, we review results on the fundamental phenomena of quantum theory that cannot be understood in classical terms. We proceed by rst granting quite …

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Review Of Douglas Stone, Einstein And The Quantum: The Quest Of The Valiant Swabian, Matthew S. Leifer

Mathematics, Physics, and Computer Science Faculty Articles and Research

A book review of A. Douglas Stone's Einstein and the Quantum: The Quest of the Valiant Swabian.

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Measurement Of The Yb I 1S0-1P1 Transition Frequency At 399 Nm Using An Optical Frequency Comb, Michaela Kleinert, M. E. Gold Dahl, Scott D. Bergeson

Faculty Publications

We determine the frequency of the Yb I ¹S₀-¹P₁ transition at 399 nm using an optical frequency comb. Although this transition was measured previously using an optical transfer cavity [D. Das et al., Phys, Rev. A 72, 032506 (2005)], recent work has uncovered significant errors in that method. We compare our result of 751 526 533.49 ± 0.33 MHz for the ¹⁷⁴Yb isotope with those from the literature and discuss observed differences. We verify the correctness of our method by measuring the frequencies of well-known transitions in Rb and Cs, and by …

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The Construction And Validation Of An Instructor Learning Analytics Implementation Model To Support At-Risk Students, Holly M. Mckee

CCE Theses and Dissertations

With the widespread use of learning analytics tools, there is a need to explore how these technologies can be used to enhance teaching and learning. Little research has been conducted on what human processes are necessary to facilitate meaningful adoption of learning analytics. The research problem is that there is a lack of evidence-based guidance on how instructors can effectively implement learning analytics to support academically at-risk students with the purpose of improving learning outcomes. The goal was to develop and validate a model to guide instructors in the implementation of learning analytics tools to support academically at-risk students with …

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Lefttailbounds.Zip, Iosif Pinelis

Iosif Pinelis

The zip file pertains to my paper "Optimal binomial, Poisson, and normal left-tail domination for sums of nonnegative random variables" (arXiv:1503.06482v3 [math.PR]). This zip file contains two folders: Mathematica and Reduce(Redlog). The folder Mathematica contains certain Mathematica notebook (.nb) files and their pdf copies. The folder Reduce(Redlog) contains certain log files of sessions in Reduce and .png copies of the sessions.

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Tabulating Pseudoprimes And Tabulating Liars, Andrew Shallue

Andrew Shallue

This paper explores the asymptotic complexity of two problems related

to the Miller-Rabin-Selfridge primality test. The first problem is to

tabulate strong pseudoprimes to a single fixed base $a$. It is now proven

that tabulating up to $x$ requires $O(x)$ arithmetic operations and $O(x\log{x})$ bits of space.

The second problem is to find all strong liars and witnesses, given a fixed odd composite $n$.

This appears to be unstudied, and a randomized algorithm is presented that requires an

expected $O((\log{n})^2 + |S(n)|)$ operations (here $S(n)$ is the set of strong liars).

Although interesting in their own right, a notable application …

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Approaching A Universal Scaling Relationship Between Fracture Stiffness And Fluid Flow, David Nolte, Laura Pyrak-Nolte

David D Nolte

A goal of subsurface geophysical monitoring is the detection and characterization of fracture

alterations that affect the hydraulic integrity of a site. Achievement of this goal requires a link

between the mechanical and hydraulic properties of a fracture. Here we present a scaling

relationship between fluid flow and fracture-specific stiffness that approaches universality.

Fracture-specific stiffness is a mechanical property dependent on fracture geometry that can

be monitored remotely using seismic techniques. A Monte Carlo numerical approach

demonstrates that a scaling relationship exists between flow and stiffness for fractures with

strongly correlated aperture distributions, and continues to hold for fractures deformed …

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Auxiliary Likelihood-Based Approximate Bayesian Computation In State Space Models, Worapree Ole Maneesoonthorn

Worapree Ole Maneesoonthorn

A new approach to inference in state space models is proposed, using approximate Bayesian computation (ABC). ABC avoids evaluation of an intractable likelihood by matching summary statistics computed from observed data with statistics computed from data simulated from the true process, based on parameter draws from the prior. Draws that produce a 'match' between observed and simulated summaries are retained, and used to estimate the inaccessible posterior; exact inference being feasible only if the statistics are suffi#14;cient. With no reduction to su#14;fficiency being possible in the state space setting, we pursue summaries via the maximization of

an auxiliary likelihood function. …

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Ckat Software, Debashis Ghosh, Xiang Zhan

Debashis Ghosh

This is the software to accompany "A novel copy number variants kernel association test with application to autism spectrum disorders studies" by Zhan et al.

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Vanessa Selimovic, Vanessa Selimovic

Matthew E. Wise

Determination of the optical properties of secondary organic aerosol particles

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Methyl Transfer By Substrate Signaling From A Knotted Protein Fold, Thomas Christian, Reiko Sakaguchi, Agata P. Perlinska, George Lahoud, Takuhiro Ito, Erika A. Taylor, Shigeyuki Yokoyama, Joanna I. Sulkowska, Ya-Ming Hou

Erika A. Taylor, Ph.D.

Proteins with knotted configurations, in comparison with unknotted proteins, are restricted in conformational space. Little is known regarding whether knotted proteins have sufficient dynamics to communicate between spatially separated substrate-binding sites. TrmD is a bacterial methyltransferase that uses a knotted protein fold to catalyze methyl transfer from S-adenosyl methionine (AdoMet) to G37-tRNA. The product, m1G37-tRNA, is essential for life and maintains protein-synthesis reading frames. Using an integrated approach of structural, kinetic, and computational analysis, we show that the structurally constrained TrmD knot is required for its catalytic activity. Unexpectedly, the TrmD knot undergoes complex internal movements that respond to AdoMet …

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Electrical Control Of Chiral Phases In Electrotoroidicnanocomposites, Raymond Walter, Sergei Prokhorenko, Zhigang Gui, Yousra Nahas, Laurent Bellaiche

Raymond Walter

Molecular dynamics in a first-principle-based effective Hamiltonian scheme show that optical rotation of polarized light as measured by gyrotropic coefficient is maximized at room temperature for some applied DC electric field in a ferroelectric nanocomposite consisting of BaTiO3nanowires in an SrTiO3 medium that exhibits electrical vortices. Together with a phase diagram obtained from Monte Carlo simulation, this characterizes optical applications of electrical vortices.

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Revisiting Galvanomagnetic Effects In Conducting Ferromagnets, Raymond Walter, Michel Viret, Surendra Singh, Laurent Bellaiche

Raymond Walter

The recently proposed coupling between the angular momentum density and magnetic moments is shown

to provide a straightforward alternative explanation for galvanomagnetic eects, i.e., for both anisotropic

magnetoresistance (AMR) and planar Hall eect (PHE). Such coupling naturally reproduces the general

formula associated with AMR and PHE and allows for the occurrence of so-called `negative AMR'. This

coupling also provides a unifying link between AMR, PHE and the anomalous Hall eect (AHE) since this

same coupling was previously found to give rise to AHE (Bellaiche et al 2013 Phys. Rev. B 88 161102).

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Preparing Underrepresented And First-Generation Students For Careers In Biomedical Big Data Science, Judith Canner, Carla Fresquez

Judith Canner

In 2015, through the support of the NIH BD2K dR25 Enhancing Diversity in Biomedical Data Science Grant, California State University, Monterey Bay (CSUMB), a federally classified Hispanic Serving Institution, started to develop several programs to support undergraduate training in biomedical data science. The programs include 1) a summer research program for undergraduates at the Center for Big Data in Translational Genomics at UC Santa Cruz; 2) new majors, concentrations, and minors relevant to biomedical data science; and 3) professional and research training for undergraduate students and faculty at CSUMB. We will present the successes of the …

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Universal Memory Architectures For Autonomous Machines, Dan Guralnik, Daniel E. Koditschek

Dan Guralnik

We propose a self-organizing memory architecture (UMA) for perceptual experience provably capable of supporting autonomous learning and goal-directed problem solving in the absence of any prior information about the agent’s environment. The architecture is simple enough to ensure (1) a quadratic bound (in the number of available sensors) on space requirements, and (2) a quadratic bound on the time-complexity of the update-execute cycle. At the same time, it is sufficiently complex to provide the agent with an internal representation which is (3) minimal among all representations which account for every sensory equivalence class consistent with the agent’s belief state; (4) …

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Asymmetric Forecast Densities For U.S. Macroeconomic Variables From A Gaussian Copula Model Of Cross-Sectional And Serial Dependence, Michael S. Smith, Shaun Vahey

Michael Stanley Smith

Most existing reduced-form macroeconomic multivariate time series models employ elliptical disturbances, so that the forecast densities produced are symmetric. In this paper, we use a copula model with asymmetric margins to produce forecast densities with the scope for severe departures from symmetry. Empirical and skew t distributions are employed for the margins, and a high-dimensional Gaussian copula is used to jointly capture cross-sectional and (multivariate) serial dependence. The copula parameter matrix is given by the correlation matrix of a latent stationary and Markov vector autoregression (VAR). We show that the likelihood can be evaluated efficiently using the unique partial correlations, …

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Role Of Multiple High-Capacity Irrigation Wells On A Surficial Sand And Gravel Aquifer, Logan Seipel, Eric Wade Peterson, David H. Malone, Jason F. Thomason

Eric Wade Peterson

Within McHenry County, IL, the fastest growing county in Illinois, groundwater is used for 100% of

the water needs. Concerns over water resources have prompted the investigation of the surficial

sand and gravel aquifers of the county. While the eastern portion of the county is urbanizing, the

western portion remains devoted to agriculture. High-capacity irrigation wells screened within

the surficial sand and gravel aquifer are used for crop production. To assess the impacts of the ir-

rigation wells on the aquifer, a groundwater flow model was developed to examine five different

scenarios reflecting drought conditions and increased pumping. Results show …

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Brief Summary On Health Informatics, Sugam Sharma

Sugam Sharma

This paper provides a brief summary on health informatics.

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Brief Summary On Smart Home, Sugam Sharma

Sugam Sharma

This paper provides a brief summary on smart homes technology.

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Brief Summary On Wsn, Sugam Sharma

Sugam Sharma

This paper provides a brief summary on wireless sensor networks research.

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Brief Summary On Big Data, Sugam Sharma

Sugam Sharma

This paper provides a brief summary on Big Data research.

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Brief Summary On Iot, Sugam Sharma

Sugam Sharma

This paper provides a brief summary on Internet of Things.

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Brief Summary On Cloud Computing, Sugam Sharma

Sugam Sharma

This paper provides a brief summary on cloud computing.

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Mapping The Patent Landscape Of Synthetic Biology For Fine Chemical Production Pathways, Pablo Carbonell, Abdullah Gok, Philip Shapira, Jean-Loup Faulon

Philip Shapira

A goal of synthetic biology bio-foundries is to innovate through an iterative design/build/test/learn pipeline. In assessing the value of new chemical production routes, the intellectual property (IP) novelty of the pathway is important. Exploratory studies can be carried using knowledge of the patent/IP landscape for synthetic biology and metabolic engineering. In this paper, we perform an assessment of pathways as potential targets for chemical production across the full catalogue of reachable chemicals in the extended metabolic space of chassis organisms, as computed by the retrosynthesis-based algorithm RetroPath. Our database for reactions processed by sequences in heterologous pathways was screened against …

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Tilasite From Sterling Mine, Ogdensburg, New Jersey: A Newly Recognized Assemblage, James A. Van Fleet, Earl R. Verbeek Phd

James A. Van Fleet

No abstract provided.

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Full-Text Articles in Physical Sciences and Mathematics

Did My Eighth Grade Girlfriend's Dad Cause My Psychosis? A Brain In Flames, Peter Durning

The Synapse: Intercollegiate science magazine

Coral Reefs, Julia Utset

The Synapse: Intercollegiate science magazine

Obie Rocks: A Quick Look At Some Of Oberlin's Very Own Rock Jewels, Elena Hartley

The Synapse: Intercollegiate science magazine

Deeper Than Ink: The Cybernetic Augmentation Of The Human Body, Russell Jaffe

The Synapse: Intercollegiate science magazine

Reforming Mathematics: Why Are People Scared Of Math?, Oliver Meldrum

The Synapse: Intercollegiate science magazine

No Return To Classical Reality, David Jennings, Matthew S. Leifer

Mathematics, Physics, and Computer Science Faculty Articles and Research

Review Of Douglas Stone, Einstein And The Quantum: The Quest Of The Valiant Swabian, Matthew S. Leifer

Mathematics, Physics, and Computer Science Faculty Articles and Research

Measurement Of The Yb I 1S0-1P1 Transition Frequency At 399 Nm Using An Optical Frequency Comb, Michaela Kleinert, M. E. Gold Dahl, Scott D. Bergeson

Faculty Publications

The Construction And Validation Of An Instructor Learning Analytics Implementation Model To Support At-Risk Students, Holly M. Mckee

CCE Theses and Dissertations

Lefttailbounds.Zip, Iosif Pinelis

Iosif Pinelis

Tabulating Pseudoprimes And Tabulating Liars, Andrew Shallue

Andrew Shallue

Approaching A Universal Scaling Relationship Between Fracture Stiffness And Fluid Flow, David Nolte, Laura Pyrak-Nolte

David D Nolte

Auxiliary Likelihood-Based Approximate Bayesian Computation In State Space Models, Worapree Ole Maneesoonthorn

Worapree Ole Maneesoonthorn

Ckat Software, Debashis Ghosh, Xiang Zhan

Debashis Ghosh

Vanessa Selimovic, Vanessa Selimovic

Matthew E. Wise

Methyl Transfer By Substrate Signaling From A Knotted Protein Fold, Thomas Christian, Reiko Sakaguchi, Agata P. Perlinska, George Lahoud, Takuhiro Ito, Erika A. Taylor, Shigeyuki Yokoyama, Joanna I. Sulkowska, Ya-Ming Hou

Erika A. Taylor, Ph.D.

Electrical Control Of Chiral Phases In Electrotoroidicnanocomposites, Raymond Walter, Sergei Prokhorenko, Zhigang Gui, Yousra Nahas, Laurent Bellaiche

Raymond Walter

Revisiting Galvanomagnetic Effects In Conducting Ferromagnets, Raymond Walter, Michel Viret, Surendra Singh, Laurent Bellaiche

Raymond Walter

Preparing Underrepresented And First-Generation Students For Careers In Biomedical Big Data Science, Judith Canner, Carla Fresquez

Judith Canner

Universal Memory Architectures For Autonomous Machines, Dan Guralnik, Daniel E. Koditschek

Dan Guralnik

Asymmetric Forecast Densities For U.S. Macroeconomic Variables From A Gaussian Copula Model Of Cross-Sectional And Serial Dependence, Michael S. Smith, Shaun Vahey

Michael Stanley Smith

Role Of Multiple High-Capacity Irrigation Wells On A Surficial Sand And Gravel Aquifer, Logan Seipel, Eric Wade Peterson, David H. Malone, Jason F. Thomason

Eric Wade Peterson

Brief Summary On Health Informatics, Sugam Sharma

Sugam Sharma

Brief Summary On Smart Home, Sugam Sharma

Sugam Sharma

Brief Summary On Wsn, Sugam Sharma

Sugam Sharma

Brief Summary On Big Data, Sugam Sharma

Sugam Sharma

Brief Summary On Iot, Sugam Sharma

Sugam Sharma

Brief Summary On Cloud Computing, Sugam Sharma

Sugam Sharma

Mapping The Patent Landscape Of Synthetic Biology For Fine Chemical Production Pathways, Pablo Carbonell, Abdullah Gok, Philip Shapira, Jean-Loup Faulon

Philip Shapira

Tilasite From Sterling Mine, Ogdensburg, New Jersey: A Newly Recognized Assemblage, James A. Van Fleet, Earl R. Verbeek Phd

James A. Van Fleet