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2011

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Digit Ratios, Baron-Cohen's Reading The Minds In The Eyes And Dart-Throwing Task, Betul Zora Jan 2011

Digit Ratios, Baron-Cohen's Reading The Minds In The Eyes And Dart-Throwing Task, Betul Zora

Honors Program Theses

There is evidence that high prenatal testosterone and the ratio of the index finger to the ring finger are correlated. There is also evidence that male-typical finger ratios correlate positively with male-typical tasks such as targeting and negatively correlated with female-typical tasks. This study examines the correlation between the digit ratio and the dart throwing task and also the digit ratio and Baron-Cohen’s Reading the Mind in the Eyes test. A different digit ratio, the ratio of the index finger and the ring finger to the pinky is also collected and correlated with both of the other tests. Sometime during …

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Rational Decision-Making In The Face Of Uncertainty: An Experiment In Jeopardy!, Trevor Boeckmann Jan 2011

Rational Decision-Making In The Face Of Uncertainty: An Experiment In Jeopardy!, Trevor Boeckmann

Honors Program Theses

This paper examines the quiz show "Jeopardy!." In the game, players accumulate points then wager them in a final round on a single question. My study finds an empirically-best wagering system for these players, then calculates the benefit of using this system through additional games that would be won with the correct bet. My regression model then finds the determinants of empirically-best (EB) betters. The results show players tend to act too aggressively. Half of non-first place players wager incorrectly and nearly 90% of those non- EB wagers are too large. The regression shows players are most likely to make …

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Retention Time Variability As A Mechanism For Animal Mediated Long-Distance Dispersal, Vishwesha Guttal, Frederic Bartumeus, Gregg Hartvigsen, Andrew L. Nevai Jan 2011

Retention Time Variability As A Mechanism For Animal Mediated Long-Distance Dispersal, Vishwesha Guttal, Frederic Bartumeus, Gregg Hartvigsen, Andrew L. Nevai

Biology

Long-distance dispersal (LDD) events, although rare for most plant species, can strongly influence population and community dynamics. Animals function as a key biotic vector of seeds and thus, a mechanistic and quantitative understanding of how individual animal behaviors scale to dispersal patterns at different spatial scales is a question of critical importance from both basic and applied perspectives. Using a diffusion-theory based analytical approach for a wide range of animal movement and seed transportation patterns, we show that the scale (a measure of local dispersal) of the seed dispersal kernel increases with the organisms' rate of movement and mean seed …

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A Network Model For Plant-Pollinator Community Assembly, Colin Campbell, Suann Yang, Reka Albert, Katriona Shea Jan 2011

A Network Model For Plant-Pollinator Community Assembly, Colin Campbell, Suann Yang, Reka Albert, Katriona Shea

Biology

Community assembly models, usually constructed for food webs, are an important component of our understanding of how ecological communities are formed. However, models for mutualistic community assembly are still needed, especially because these communities are experiencing significant anthropogenic disturbances that affect their biodiversity. Here, we present a unique network model that simulates the colonization and extinction process of mutualistic community assembly. We generate regional source pools of species interaction networks on the basis of statistical properties reported in the literature. We develop a dynamic synchronous Boolean framework to simulate, with few free parameters, the dynamics of new mutualistic community formation …

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The Effect Of Consumers And Mutualists Of Vaccinium Membranaceum At Mount St. Helens: Dependence On Successional Context, Suann Yang, Eelke Jongejans, Sylvia Yang, John G. Bishop Jan 2011

The Effect Of Consumers And Mutualists Of Vaccinium Membranaceum At Mount St. Helens: Dependence On Successional Context, Suann Yang, Eelke Jongejans, Sylvia Yang, John G. Bishop

Biology

In contrast to secondary succession, studies of terrestrial primary succession largely ignore the role of biotic interactions, other than plant facilitation and competition, despite the expectation that simplified interaction webs and propagule-dependent demographics may amplify the effects of consumers and mutualists. We investigated whether successional context determined the impact of consumers and mutualists by quantifying their effects on reproduction by the shrub Vaccinium membranaceum in primary and secondary successional sites at Mount St. Helens (Washington, USA), and used simulations to explore the effects of these interactions on colonization. Species interactions differed substantially between sites, and the combined effect of consumers …

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Predatory Ed: The Conflict Between Public Good And For-Profit Higher Education, Osamudia R. James Jan 2011

Predatory Ed: The Conflict Between Public Good And For-Profit Higher Education, Osamudia R. James

Articles

No abstract provided.

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Estimation Of Dairy Particulate Matter Emission Rates By Lidar And Inverse Modeling, C. C. Marchant, K. D. Moore, M. D. Wojcik, R. S. Martin, R. L. Pfeiffer, J. H. Pruger, J. L. Hatfield Jan 2011

Estimation Of Dairy Particulate Matter Emission Rates By Lidar And Inverse Modeling, C. C. Marchant, K. D. Moore, M. D. Wojcik, R. S. Martin, R. L. Pfeiffer, J. H. Pruger, J. L. Hatfield

Space Dynamics Laboratory Publications

Particulate matter (PM) emissions from agricultural operations are an important issue for air quality and human health and a topic of interest to government regulators. PM emission rates from a dairy in the San Joaquin Valley of California were investigated during June 2008. The facility had 1,885 total animals, including 950 milking cows housed in free‐stall pens with an open‐lot exercise area, and 935 dry cows, steers, bulls, and heifers housed in open lots. Point sensors, including filter‐based aerodynamic mass samplers and optical particle counters (OPC), were deployed at select points around the facility to measure optical and aerodynamic particulate …

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The Spatial Distribution Of Solar Radiation Under A Melting Arctic Sea Ice Cover, Karen E. Frey, Donald K. Perovich, Bonnie Light Jan 2011

The Spatial Distribution Of Solar Radiation Under A Melting Arctic Sea Ice Cover, Karen E. Frey, Donald K. Perovich, Bonnie Light

Geography

The sea ice cover of the Chukchi and Beaufort Seas is currently undergoing a fundamental shift from multiyear ice to first-year ice. Field observations of sea ice physical and optical properties were collected in this region during June-July 2010, revealing unexpectedly complex spatial distributions of solar radiation under the melt-season ice cover. Based on our optical measurements of first-year ice, we found the under-ice light field in the upper ocean to be spatially heterogeneous and dependent on wavelength, ice thickness, and the areal and geometric distribution of melt ponded and bare ice surfaces. Much of the observed complexity in radiation …

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Spatial And Interannual Variability Of Dissolved Organic Matter In The Kolyma River, East Siberia, Observed Using Satellite Imagery, Claire G. Griffin, Karen E. Frey, John Rogan, Robert M. Holmes Jan 2011

Spatial And Interannual Variability Of Dissolved Organic Matter In The Kolyma River, East Siberia, Observed Using Satellite Imagery, Claire G. Griffin, Karen E. Frey, John Rogan, Robert M. Holmes

Geography

The Kolyma River basin in northeastern Siberia, the sixth largest river basin draining to the Arctic Ocean, contains vast reserves of carbon in Pleistocene-aged permafrost soils. Permafrost degradation, as a result of climate change, may cause shifts in riverine biogeochemistry as this old source of organic matter is exposed. Satellite remote sensing offers an opportunity to complement and extrapolate field sampling of dissolved organic matter in this expansive and remote region. We develop empirically based algorithms that estimate chromophoric dissolved organic matter (CDOM) and dissolved organic carbon (DOC) in the Kolyma River and its major tributaries in the vicinity of …

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A Synthesis Of The Long-Term Paleoclimatic Evolution Of The Arctic, Matthew O'Regan, Christopher J. Williams, Karen E. Frey, Martin Jakobsson Jan 2011

A Synthesis Of The Long-Term Paleoclimatic Evolution Of The Arctic, Matthew O'Regan, Christopher J. Williams, Karen E. Frey, Martin Jakobsson

Geography

Since the Arctic Ocean began forming in the Early Cretaceous 112-140 million years ago, the Arctic region has undergone profound oceanographic and paleoclimatic changes. It has evolved from a warm epicontinental sea to its modern state as a cold isolated ocean with extensive perennial sea ice cover. Our understanding of the long-term paleoclimate evolution of the Arctic remains fragmentary but has advanced dramatically in the past decade through analysis of new marine and terrestrial records, supplemented by important insights from paleoclimate models. Improved understanding of how these observations fit into the long-term evolution of the global climate system requires additional …

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Integer-Based Fully Homomorphic Encryption, Michael Snook Jan 2011

Integer-Based Fully Homomorphic Encryption, Michael Snook

Theses

The concept of fully homomorphic encryption has been considered the "holy grail" of cryptography since the discovery of secure public key cryptography in the 1970s. Fully homomorphic encryption allows arbitrary computation on encrypted data to be performed securely. Craig Gentry's new method of bootstrapping introduced in 2009 provides a technique for constructing fully homomorphic cryptosystems. In this paper we explore one such bootstrappable system based on simple integer arithmetic in a manner that someone without a high level of experience in homomorphic encryption can readily understand. Further, we present an implementation of the system as well as a lattice- based …

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Inducible Nitric Oxide Synthase Provides Protection Against Injury-Induced Thrombosis In Female Mice, Rita K. Upmacis, Hao Shen, Lea Esther S. Benguigui, Brian D. Lamon, Ruba S. Deeb, Katherine A. Hajjar, David P. Hajjar Jan 2011

Inducible Nitric Oxide Synthase Provides Protection Against Injury-Induced Thrombosis In Female Mice, Rita K. Upmacis, Hao Shen, Lea Esther S. Benguigui, Brian D. Lamon, Ruba S. Deeb, Katherine A. Hajjar, David P. Hajjar

Faculty Papers and Publications

Nitric oxide (NO) is an important vasoactive molecule produced by three NO synthase (NOS) enzymes: neuronal (nNOS), inducible (iNOS) and endothelial NOS (eNOS). While eNOS contributes to blood vessel dilation that is generally thought to protect against the development of hypertension, iNOS has been primarily implicated as a disease-promoting isoform leading to protein-bound 3-nitrotyrosine formation in aortic lesions and select organs during atherogenesis. Despite this, iNOS may also play a physiological role, via the modulation of cyclooxygenase and thromboregulatory eicosanoid production. Herein, we examined the role of iNOS in a murine model of thrombosis. Blood flow was measured in carotid …

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Listening: Questions, Ideas, Reflections, And Mistakes From A Pre-Student Teacher, Grace-Ann Astrid Manes Jan 2011

Listening: Questions, Ideas, Reflections, And Mistakes From A Pre-Student Teacher, Grace-Ann Astrid Manes

Senior Honors Theses and Projects

This autobiographical self-study thesis explores the growth of the pre-student teacher within the context of an exploration of differentiation. It is an in-depth, reflective study of the development of a curriculum unit based in environmental mathematics education, the teaching of that unit in three contrasting school systems, and the results of that teaching for the student and teacher. The importance of listening in differentiation is emphasized as the questions, ideas, reflections, and mistakes of a pre-service teacher are discussed. In order to maintain validity and perspective, the theisis is written in narrative style with particular attention to author context, chronological …

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Detection Of The Timing And Duration Of Snowmelt In The Hindu Kush-Himalaya Using Quikscat, 2000-2008, Prajjwal K. Panday, Karen E. Frey, Bardan Ghimire Jan 2011

Detection Of The Timing And Duration Of Snowmelt In The Hindu Kush-Himalaya Using Quikscat, 2000-2008, Prajjwal K. Panday, Karen E. Frey, Bardan Ghimire

Geography

The Hindu Kush-Himalayan (HKH) region holds the largest mass of ice in Central Asia and is highly vulnerable to global climate change, experiencing significant warming (0.21 ± 0.08 °C/decade) over the past few decades. Accurate monitoring of the timing and duration of snowmelt across the HKH region is important, as this region is expected to experience further warming in response to increased greenhouse gas forcing. Despite the many advantages and applications of satellite-derived radar scatterometer data shown for capturing ice and snow melt dynamics at high latitudes, similar comprehensive freeze/thaw detection studies at lower latitudes (including the HKH region) are …

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Transport Of Antibodies And Nanoparticles Across An In Vitro Blood-Brain Barrier, Lin Zhang Jan 2011

Transport Of Antibodies And Nanoparticles Across An In Vitro Blood-Brain Barrier, Lin Zhang

Dissertations and Theses

"The blood-brain barrier (BBB) is a dynamic interface between the blood circulation and the central nervous system (CNS). While it serves as a selective barrier to water and solutes to prevent the blood-borne toxins from entering into the brain tissue, it hinders the drug delivery to the CNS for the treatment of brain diseases. Recently therapeutic antibodies and a variety of drug-loaded nanoparticles (NPs) have been widely used to treat CNS disorders such as brain tumors, Alzheimer's disease and Parkinson's disease. To improve brain delivery efficacy of antibodies and NPs, it is necessary to quantify their transport parameters across the …

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Synthesis Of Alkynyl Ribofuranosides, Christian Rodriguez Jan 2011

Synthesis Of Alkynyl Ribofuranosides, Christian Rodriguez

Dissertations and Theses

No abstract provided.

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Validation Of Noaa Interactive Snow Maps In The North American Region With National Climatic Data Center Ground-Based Data, Christine Chen Jan 2011

Validation Of Noaa Interactive Snow Maps In The North American Region With National Climatic Data Center Ground-Based Data, Christine Chen

Dissertations and Theses

"Both the areal coverage of snow and the volume of water in its subsequent melt are of concern for the creation and maintenance of both hydroelectric power and local water supply. The interactive multisensor snow and ice mapping system (IMS) is a geographic interactive system that allows for both the viewing of various sensor data and the mapping daily both snow and sea ice extent by an analyst on one platform. This thesis investigates the agreement between the National Oceanic and Atmospheric Administration’s (NOAA) interactive multisensor snow and ice mapping system (IMS) and snow depth values obtained from the National …

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Complexity Of Minimum Corridor Guarding Problems, Ning Xu Jan 2011

Complexity Of Minimum Corridor Guarding Problems, Ning Xu

Dissertations and Theses

"In this paper, the complexity of minimum corridor guarding problems is discussed. These problem can be described as: given a connected orthogo-nal arrangement of vertical and horizontal line segments and a guard with unlimited visibility along a line segment, find a tree or a closed tour with minimum total length along edges of the arrangement, such that if the guard runs on the tree or on the closed tour, all line segments are visited by the guard. These problems are proved to be NP-complete. Keywords: computational complexity, computational geometry, corridor guarding, NP-complete"

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Parallel Computing With Improved Techniques For Monte Carlo Simulation In Var, Ping Hung Wu Jan 2011

Parallel Computing With Improved Techniques For Monte Carlo Simulation In Var, Ping Hung Wu

Dissertations and Theses

"Value at Risk ( VaR ) is a widely used tool for the assessment of one’s investments. VaR is used to evaluate the risk of loss on a financial portfolio. This metric can be computed in several ways. In the historical approach, past trends of the appropriate combination of stocks is used to estimate current portfolio fluctuations. The variance – covariance method, meanwhile, seeks to discover relationships in price fluctuations for one’s stocks. Finally, Monte Carlo simulation capitalizes upon the stochastic nature of stock prices to predict future value. This latter approach, however, relies heavily on the multiplication of vectors …

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Adiabatic Air-Water Two Phase Flow Experimental Facilities Design, Construction And Operation, Saman Reshadi Jan 2011

Adiabatic Air-Water Two Phase Flow Experimental Facilities Design, Construction And Operation, Saman Reshadi

Dissertations and Theses

"Experimental studies are conducted to predict the phenomenon(s) and to describe some kind of causation. The design of experiment and the experimental facility is a rigorous method. A well designed, manufactured and operated experimental facility is robust under criticism. Thermal hydraulic characteristics of air-water two-phase flows in a vertical tube (poly-dispersed) and also annulus (mono-dispersed) have been subjected to be studied in detail. The hydrodynamics modeling and simulations need a detailed comparison and verification with experimental results. Obviously, a well-designed experimental facility is required to provide a set of highly accurate and reliable data. To do so, two different research …

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Synthesis And Characterization Of Pbte Quantum Dots, Faiza Anwar Jan 2011

Synthesis And Characterization Of Pbte Quantum Dots, Faiza Anwar

Dissertations and Theses

No abstract provided.

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A Parody Of Nature Or The Nature Of Parody; Melville As Critic Of Emerson And Darwin, Benjamin Barber Rose Jan 2011

A Parody Of Nature Or The Nature Of Parody; Melville As Critic Of Emerson And Darwin, Benjamin Barber Rose

Dissertations and Theses

No abstract provided.

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My Endless Compliance, Kate Lutzner Jan 2011

My Endless Compliance, Kate Lutzner

Dissertations and Theses

No abstract provided.

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From Archetypes To Architects: Re-Envisioning The Role Morality Of Trial Level Judges, Richard Devlin Frsc Jan 2011

From Archetypes To Architects: Re-Envisioning The Role Morality Of Trial Level Judges, Richard Devlin Frsc

Articles, Book Chapters, & Popular Press

In this article, I build upon the concepts of role-differentiated behaviour and role morality to reflect upon the privileges and responsibilities of being a trial judge. In particular, I will suggest there are at least two (potentially competing) professional archetypes for judicial role morality, which at this point I will tentatively describe as the mechanics and the innovators. Both of these archetypes agree that the governing principles should be integrity, honesty, independence, impartiality, fairness, et cetera, but they differ in their understanding of how best to put these ideals into effect in the real world. In due course, I will …

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Proteomic Analysis Of Human Mesenchymal Stem Cell Aging During Serial Sub-Culture, Pawan Kc Jan 2011

Proteomic Analysis Of Human Mesenchymal Stem Cell Aging During Serial Sub-Culture, Pawan Kc

Dissertations and Theses

"Human mesenchymal stem cells (hMSCs) hold great potential for clinical applications in regenerative medicine. However, hMSCs occur at a very low frequency in bone marrow so the clinical use as cellular therapeutics requires suitable techniques for isolation and expansion. Furthermore, these cells can be expanded in vitro for only limited passage numbers before they reach a senescent state. Previous studies have shown that long term culture of hMSCs results in the decrease in proliferation rates, changes in genomic expressions, increase in cell sizes, and other morphological changes. Currently the mechanisms of hMSC aging and biomarkers associated with it have not …

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Commentary Wildlife Risk To Aviation: A Multi-Scale Issue Requires A Multi-Scale Solution, James A. Martin, Jerrold L. Belant, Travis L. Devault, Bradley F. Blackwell, Loren W. Burger Jr., Samuel K. Riffell, Guiming Wang Jan 2011

Commentary Wildlife Risk To Aviation: A Multi-Scale Issue Requires A Multi-Scale Solution, James A. Martin, Jerrold L. Belant, Travis L. Devault, Bradley F. Blackwell, Loren W. Burger Jr., Samuel K. Riffell, Guiming Wang

Human–Wildlife Interactions

No abstract provided.

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Efficient Strong Designated Verifier Signature Schemes Without Random Oracle Or With Non-Delegatability, Qiong Huang, Guomin Yang, Duncan S. Wong, Willy Susilo Jan 2011

Efficient Strong Designated Verifier Signature Schemes Without Random Oracle Or With Non-Delegatability, Qiong Huang, Guomin Yang, Duncan S. Wong, Willy Susilo

Research Collection School Of Computing and Information Systems

Designated verifier signature (DVS) allows a signer to convince a designated verifier that a signature is generated by the signer without letting the verifier transfer the conviction to others, while the public can still tell that the signature must be generated by one of them. Strong DVS (SDVS) strengthens the latter part by restricting the public from telling whether the signature is generated by one of them or by someone else. In this paper, we propose two new SDVS schemes. Compared with existing SDVS schemes, the first new scheme has almost the same signature size and meanwhile, is proven secure …

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Identity-Based Strong Designated Verifier Signature Revisited, Qiong Huang, Guomin Yang, Duncan S. Wong, Willy Susilo Jan 2011

Identity-Based Strong Designated Verifier Signature Revisited, Qiong Huang, Guomin Yang, Duncan S. Wong, Willy Susilo

Research Collection School Of Computing and Information Systems

Designated verifier signature (DVS) allows the signer to persuade a verifier the validity of a statement but prevent the verifier from transferring the conviction. Strong designated verifier signature (SDVS) is a variant of DVS, which only allows the verifier to privately check the validity of the signer’s signature. In this work we observe that the unforgeability model considered in the existing identity-based SDVS schemes is not strong enough to capture practical attacks, and propose to consider another model which is shown to be strictly stronger than the old one. We then propose a new efficient construction of identity-based SDVS scheme, …

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Trends And Controversies: Ai, Virtual Worlds, And Massively Multiplayer Online Games, Hsinchun Chen, Yulei Zhang, W. S. Bainbridge, Kyong Jin Shim, N. Pathak, M. A. Ahmad, C. Delong, Z. Borbora, A. Mahapatra, J. Srivastava Jan 2011

Trends And Controversies: Ai, Virtual Worlds, And Massively Multiplayer Online Games, Hsinchun Chen, Yulei Zhang, W. S. Bainbridge, Kyong Jin Shim, N. Pathak, M. A. Ahmad, C. Delong, Z. Borbora, A. Mahapatra, J. Srivastava

Research Collection School Of Computing and Information Systems

The rich social media data generated in virtual worlds has important implications for business, education, social science, and society at large. Similarly, massively multiplayer online games (MMOGs) have become increasingly popular and have online communities comprising tens of millions of players. They serve as unprecedented tools for theorizing about and empirically modeling the social and behavioral dynamics of individuals, groups, and networks within large communities. Some technologists consider virtual worlds and MMOGs to be likely candidates to become the Web 3.0. AI can play a significant role, from multiagent avatar research and immersive virtual interface design to virtual world and …

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Solving The Teacher Assignment Problem By Two Metaheuristics, Aldy Gunawan, Kien Ming Ng Jan 2011

Solving The Teacher Assignment Problem By Two Metaheuristics, Aldy Gunawan, Kien Ming Ng

Research Collection School Of Computing and Information Systems

The timetabling problem arising from a university in Indonesia is addressed in this paper.It involves the assignment of teachers to the courses and course sections. We formulate theproblem as a mathematical programming model. Two different algorithms, mainly basedon simulated annealing (SA) and tabu search (TS) algorithms, are proposed for solving theproblem. The proposed algorithms consist of two phases. The first phase involves allocatingthe teachers to the courses and determining the number of courses to be assigned to eachteacher. The second phase involves assigning the teachers to the course sections in order tobalance the teachers’ load. The performance of the proposed …

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