Digital Commons Network^™

On The Detection And Monitoring Of The Transport Of An Asian Dust Storm Using Multi-Sensor Satellite Remote Sensing, Hesham El-Askary, S. K. Park, M. H. Ahn, A. Prasad, Menas Kafatos

Mathematics, Physics, and Computer Science Faculty Articles and Research

Dynamical and physical features of a long range transported dust event originating in China affecting Korea early March 2008 are examined using an integrative multi-sensor and multi-algorithm approach. Aerosol loadings and their size mode were analyzed over both ocean and land surfaces using the Moderate Resolution Imaging Spectroradiometer (MODIS) aerosol optical depth (AOD), employing standard dark target (DT) and deep blue (DB) algorithms, and the Ångström exponent (AE). Anthropogenic absorbing aerosols and smoke were found to be significant over the Indochina Peninsula, the Philippines and southern China, while a mixture of dust and pollution were predominant over central to northern …

Fundamental Mathematics Of Consciousness, Menas Kafatos

Mathematics, Physics, and Computer Science Faculty Articles and Research

We explore a mathematical formalism that ties together the observer with the observed in the view that Consciousness is primary, operating through three principles which apply at all levels, the essence of qualia of experience. The formalism is a simplified version of Hilbert space mathematics encountered in quantum mechanics. It does, however, go beyond specific interpretations of quantum mechanics and has strong philosophical foundations in Western philosophy as well as monistic systems of the East. The implications are explored and steps for the full development of this axiomatic mathematical approach to Consciousness are discussed.

Weak Values Obtained In Matter-Wave Interferometry, Stephan Sponar, Tobias Denkmayr, Hermann Geppert, Hartmutt Lemmel, Alexandre Matzkin, Jeff Tollaksen, Yuji Hasegawa

Mathematics, Physics, and Computer Science Faculty Articles and Research

Weak values, introduced more than 25 years ago, underwent a metamorphosis from a theoretical curiosity to a powerful resource in photonics for exploring foundations of quantum mechanics, as well as a practical laboratory tool. Due to the tiny coherence volume of particles used in matter-wave optics, a straightforward implementation of weak measurements is not feasible. We have overcome this hurdle by developing a method to weakly measure a massive particle's spin component. A neutron optical approach is realized by utilizing neutron interferometry, where the neutron's spin is coupled weakly to its spatial degree of freedom. Here, we present how one …

Detection And Tracking Of T Cells In Time-Lapse Imaging, Cody Arbuckle, Milton L. Greenberg, Erik J. Linstead

Mathematics, Physics, and Computer Science Faculty Articles and Research

The effective classification and tracking of cells obtained from modern staining techniques has significant limitations due to the necessity of having to train and utilize a human expert in the field who must manually identify each cell in each slide. Often times these slides are filled with noise cells that are not of particular interest to the researcher. The use of computational methods has the ability to effectively and efficiently enhance image quality, as well as identify and track target cell types over large data sets. Here we present a computational approach to the in vitro tracking of T cells …

An Extension Of Herglotz's Theorem To The Quaternions, Daniel Alpay, Fabrizio Colombo, David P. Kimsey, Irene Sabadini, David P. Kimsey

Mathematics, Physics, and Computer Science Faculty Articles and Research

A classical theorem of Herglotz states that a function n↦r(n) from Z into Cs×s is positive definite if and only there exists a Cs×s-valued positive measure dμ on [0,2π] such that r(n)=∫2π0eintdμ(t)for n∈Z. We prove a quaternionic analogue of this result when the function is allowed to have a number of negative squares. A key tool in the argument is the theory of slice hyperholomorphic functions, and the representation of such functions which have a positive real part in the unit ball of the quaternions. We study in great detail the case of positive definite functions.

Boundary Interpolation For Slice Hyperholomorphic Schur Functions, Khaled Abu-Ghanem, Daniel Alpay, Fabrizio Colombo, David P. Kimsey, Irene Sabadini

Mathematics, Physics, and Computer Science Faculty Articles and Research

A boundary Nevanlinna-Pick interpolation problem is posed and solved in the quaternionic setting. Given nonnegative real numbers κ1,…,κN, quaternions p1,…,pN all of modulus 1, so that the 2-spheres determined by each point do not intersect and pu≠1 for u=1,…,N, and quaternions s1,…,sN, we wish to find a slice hyperholomorphic Schur function s so that
limr→1r∈(0,1)s(rpu)=suforu=1,…,N,
and
limr→1r∈(0,1)1−s(rpu)su¯¯¯¯¯1−r≤κu,foru=1,…,N.
Our arguments relies on the theory of slice hyperholomorphic functions and reproducing kernel Hilbert spaces.

A New Resolvent Equation For The S-Functional Calculus, Daniel Alpay, Fabrizio Colombo, Jonathan Gantner, Irene Sabadini

Mathematics, Physics, and Computer Science Faculty Articles and Research

The S-functional calculus is a functional calculus for (n + 1)-tuples of non necessarily commuting operators that can be considered a higher dimensional version of the classical Riesz-Dunford functional calculus for a single operator. In this last calculus, the resolvent equation plays an important role in the proof of several results. Associated with the S-functional calculus there are two resolvent operators: the left S−1 L (s, T ) and the right one S−1 R (s, T ), where s = (s0, s1, . . . , sn) ∈ Rn+1 and T = (T0, T1, . . . , Tn) is …

Inner Product Spaces And Krein Spaces In The Quaternionic Setting, Daniel Alpay, Fabrizio Colombo, Irene Sabadini

Mathematics, Physics, and Computer Science Faculty Articles and Research

In this paper we provide a study of quaternionic inner product spaces. This includes ortho-complemented subspaces, fundamental decompositions as well as a number of results of topological nature. Our main purpose is to show that a closed uniformly positive subspace in a quaternionic Krein space is ortho-complemented, and this leads to our choice of the results presented in the paper.

Realizations Of Infinite Products, Ruelle Operators And Wavelet Filters, Daniel Alpay, Palle Jorgensen, Izchak Lewkowicz

Mathematics, Physics, and Computer Science Faculty Articles and Research

Using the system theory notion of state-space realization of matrix-valued rational functions, we describe the Ruelle operator associated with wavelet filters. The resulting realization of infinite products of rational functions have the following four features: 1) It is defined in an infinite-dimensional complex domain. 2) Starting with a realization of a single rational matrix-function M, we show that a resulting infinite product realization obtained from M takes the form of an (infinitedimensional) Toeplitz operator with the symbol that is a reflection of the initial realization for M. 3) Starting with a subclass of rational matrix functions, including scalar-valued ones corresponding …

On Algebras Which Are Inductive Limits Of Banach Spaces, Daniel Alpay, Guy Salomon

Mathematics, Physics, and Computer Science Faculty Articles and Research

We introduce algebras which are inductive limits of Banach spaces and carry inequalities which are counterparts of the inequality for the norm in a Banach algebra. We then define an associated Wiener algebra, and prove the corresponding version of the well-known Wiener theorem. Finally, we consider factorization theory in these algebra, and in particular, in the associated Wiener algebra.

Wiener-Chaos Approach To Optimal Prediction, Daniel Alpay, Alon Kipnis

Mathematics, Physics, and Computer Science Faculty Articles and Research

In this work we combine Wiener chaos expansion approach to study the dynamics of a stochastic system with the classical problem of the prediction of a Gaussian process based on part of its sample path. This is done by considering special bases for the Gaussian space G generated by the process, which allows us to obtain an orthogonal basis for the Fock space of G such that each basis element is either measurable or independent with respect to the given samples. This allows us to easily derive the chaos expansion of a random variable conditioned on part of the sample …

Scholarship Against Desire, Shari Motro

Law Faculty Publications

This article uses my own experience navigating the law review placement process to reflect on the dynamics that shape intellectual life at American law schools. My recent work focuses on the legal relationship between unmarried lovers who conceive. At its heart, it is about the law’s role in shaping the precursor to pregnancy—heterosexual sex. When I began researching this topic what I was most curious about was how law and culture might conspire to foster connections that are more loving and less violent, more authentic and less alienated. Pursuing this topic—which would entail exploring big existential questions to which I …

The Civil Rights Of Sexually Exploited Youth In Foster Care, Dale Margolin Cecka

Law Faculty Publications

This paper examines the civil rights of youth who are missing or discharged from foster care and become victims of sexual exploitation. It also addresses future implications of this epidemic, given demographic patterns of the United States, if we do not address this issue now. Section II describes the demographics of adolescents in foster care. Next, Section III addresses the sexual exploitation of this population. Section IV describes the legal framework of the foster care system and legislation pertaining to sexually exploited youth. Section V analyzes the constitutional rights of foster youth who become victims of sexual exploitation and draws …

Working With Cancer: How The Law Can Help Survivors Maintain Employment, Ann C. Hodges

Law Faculty Publications

Advances in cancer treatment are saving lives, but along with the benefits come challenges. Millions of cancer survivors of working age need to support themselves and their families. This Article looks at the impact of cancer on employment starting with the empirical evidence gathered by researchers affiliated with medical centers. This empirical research provides a base, not previously explored in the legal literature, for assessing the existing laws dealing with cancer and employment (or unemployment). Viewing the law through this lens, which reveals the complex relationship between cancer and employment, exposes both the promise and the weakness of existing laws …

War, Responsibility, And Killer Robots, Rebecca Crootof

Law Faculty Publications

In War and Responsibility, John Hart Ely argues that Congress has willingly and cravenly surrendered its rightful role as the branch responsible for determining when and the extent to which the United States engages in armed conflicts. Since the publication of this seminal work on the war power, presidents have continued to commit troops to hostilities absent or outside of explicit congressional authorizations-and the legislature and the judiciary rarely challenge such actions.

Meanwhile, the United States is investing heavily in unmanned military weapon systems, and the U.S. Department of Defense has described increasing weapons' autonomous capabilities as a "high priority." …

Classification Of Accelerometer Wear And Non-Wear Events In Seconds For Monitoring Free-Living Physical Activity, Shang Ming Zhou, Rebecca A. Hill, Kelly Morgan, Gareth Stratton, Mike B. Gravenor, Gunnar Bijlsma, Sinead Brophy

School of Nursing and Midwifery

ObjectiveTo classify wear and non-wear time of accelerometer data for accurately quantifying physical activity in public health or population level research.DesignA bi-moving-window-based approach was used to combine acceleration and skin temperature data to identify wear and non-wear time events in triaxial accelerometer data that monitor physical activity.SettingLocal residents in Swansea, Wales, UK.Participants50 participants aged under 16 years (n=23) and over 17 years (n=27) were recruited in two phases: phase 1: design of the wear/non-wear algorithm (n=20) and phase 2: validation of the algorithm (n=30).MethodsParticipants wore a triaxial accelerometer (GeneActiv) against the skin surface on the wrist (adults) or ankle (children). …

Implicit Measures And Online Risks, Lucinda W. Wang

CCAC Theses and Dissertations

Information systems researchers typically use self-report measures, such as questionnaires to study consumers’ online risk perception. The self-report approach captures the conscious perception of online risk but not the unconscious perception that precedes and dominates human being’s decision-making. A theoretical model in which implicit risk perception precedes explicit risk evaluation is proposed. The research model proposes that implicit risk affects both explicit risk and the attitude towards online purchase. In a direct path, the implicit risk affects attitude towards purchase. In an indirect path, the implicit risk affects explicit risk, which in turn affects attitude towards purchase.

The stimulus used …

Security Frameworks For Machine-To-Machine Devices And Networks, Michael Demblewski

CCAC Theses and Dissertations

Attacks against mobile systems have escalated over the past decade. There have been increases of fraud, platform attacks, and malware. The Internet of Things (IoT) offers a new attack vector for Cybercriminals. M2M contributes to the growing number of devices that use wireless systems for Internet connection. As new applications and platforms are created, old vulnerabilities are transferred to next-generation systems. There is a research gap that exists between the current approaches for security framework development and the understanding of how these new technologies are different and how they are similar. This gap exists because system designers, security architects, and …

Lateral Migration Of The Red River, In The Vicinity Of Grand Forks, North Dakota, Dylan Babiracki

Undergraduate Theses and Senior Projects

River channels are dynamic landforms that play an important role in understanding the alluvial changes occurring within this area. The evolution of the Red River of the North within the shallow alluvial valley was investigated within a 60 river mile area north and south of Grand Forks, North Dakota. Despite considerable research along the Red River of the North, near St. Jean Baptiste, Manitoba, little is known about the historical channel dynamics within the defined study area. A series of 31 measurements were taken using three separate methods to document the path of lateral channel migration along areas of this …

Regolith Erosion At Grinnell Glacier, Glacier National Park, Montana, Connor Devon Lindenberg, Jaakko Putkonen

Undergraduate Theses and Senior Projects

Glacier National Park is located within a mountainous region in western Montana. Due to recent glaciation, moraines are present at the upper elevations throughout the park. These young moraines erode at a rapid pace when first exposed by melting ice due to: age, vegetation cover, local climate, and human/animal activity. Using repeat photography in conjunction with lab work I was able to determine that the Grinnell Glacier moraine’s crest is lowering at a much faster pace than previously published rates. Conservation policy within the park should be adjusted to reflect this information and additional research should be conducted to determine …

Cryptic Speciation In The Outback : Molecular And Morphological Differentiation Of A New Species Of Aptorchis (Digenea, Plagiorchiidae) From Australian Turtles, Zachary Selzler

Undergraduate Theses and Senior Projects

No abstract provided.

Lexical And Phonological Influences On Picture Naming In Adults, Brianna Jallo

Undergraduate Theses and Senior Projects

No abstract provided.

Expression Of Fibronectin In Urotsa (Bladder) Heterotransplant Tumors, Chelsea Ensz

Undergraduate Theses and Senior Projects

No abstract provided.

Analysis Of Secreted Sparc In Malignant Breast Cancer Cell Lines, Kirsten Mccullough

Undergraduate Theses and Senior Projects

No abstract provided.

Matrix Multiplication, Trilinear Decompositions, Apa Algorithms, And Summation, Victor Pan

Publications and Research

Matrix multiplication (hereafter we use the acronym MM) is among the most fundamental operations of modern computations. The efficiency of its performance depends on various factors, in particular vectorization, data movement and arithmetic complexity of the computations, but here we focus just on the study of the arithmetic cost and the impact of this study on other areas of modern computing. In the early 1970s it was expected that the straightforward cubic time algorithm for MM will soon be accelerated to enable MM in nearly quadratic arithmetic time, with some far fetched implications. While pursuing this goal the mainstream research …

Does Service Employees' Appearance Affect The Healthiness Of Food Choice?, Tabea: Benoit Huneke, Sabine Benoit, Anders Gustafsson

Research Collection Lee Kong Chian School Of Business

Derived from previous research on social influence on food consumption and social comparison theory, this article examines the effect of service employees’ appearance on consumers’ food choice using an experimental study, involving a video manipulation and eye-tracking technique. The video shows a menu being proffered by a waitress whose degree of apparent healthiness varies (healthy, overweight, unhealthy lifestyle). The menu contains both healthy and unhealthy meal alternatives. The analysis of participants’ eye movements demonstrated that exposure to the overweight employee did not stimulate greater (i.e., earlier or longer) attention to unhealthy meal alternatives, whereas exposure to the employee who displayed …

To Fidget Or Not To Fidget: The Effect Of Movement On Cognition, Kelsey Diane Grodner

Theses and Dissertations

Previous research suggests that there is controversy regarding the effects of fidgeting. On one hand, fidgeting has been associated with inattention. On the other hand, the act of suppressing movement may have extensive costs to cognitive abilities. Thus, allowing fidgeting might be beneficial for attention. However certain fidgeting behaviors, such as large body movements, might be disruptive in certain situations, like a classroom or an office meeting. Fidget toys have been developed that allow for smaller fidgeting movements that are non-disruptive. Most previous studies have been conducted in an elementary school classroom and have used primarily observational data. Here we …

Closing Time And Cheerleader Effects Are Moderated By Target Value, Jackie R. Mcdowell

Theses and Dissertations

Previous research on factors influencing evaluations of mate value has revealed seemingly contradictory results. Specifically, the Closing Time Effect predicts that individuals will be viewed as more attractive when there are fewer individuals to choose from, while the Cheerleader Effect predicts that individuals will be viewed as more attractive when they are in the presence of others. The current study evaluates the influence of baseline measures of attractiveness on each of these effects. Results indicate that low value individuals may be more subject to Closing Time Effects, while high value individuals benefit from the Cheerleader Effect. The influence of mating …

Role Of Student Entitlement And Co-Production On Satisfaction, Deborah Jean Sisson

HCBE Theses and Dissertations

The marketing of services has challenges uncommon to that of marketing products. By nature service offerings are intangible, heterogeneous, perishable, and simultaneously consumed and produced. This simultaneous consumption and production often requires the consumer to participate in the service delivery – co-production. Colleges and universities offer a service which requires high levels of co-production by students and is the setting for this research. As colleges/universities face greater challenges at this time, there is a need for better understanding of the role the student plays in the production process. The service marketing literature offers an understanding of the importance of the …

Can Social Stories Lead To An Improved Theory Of Mind Amongst Individuals With Autism?, Margaret Rose Lorenzetti

Theses and Dissertations

This thesis investigated whether Social Stories used in conjunction with perspective- taking questions would lead to an improved Theory of Mind (ToM) in three participants diagnosed with Autism Spectrum Disorder (ASD). We assessed participants’ perspective taking in a baseline condition, implemented a Social Story condition, and tested participants’ perspective taking again in a post-intervention condition. ToM was assessed using two variations of the false belief measures, namely the change-location and unexpected-contents paradigms. Each Social Story included three perspective-taking questions that required participants to infer a character’s emotion or perspective. Results indicated that participants’ percentage scores of correct responses increased markedly …