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Teaching Jewish Holidays In Early Childhood Education In Israel: Critical Feminist Pedagogy Perspective, Haggith Gor Ziv Sep 2017

Teaching Jewish Holidays In Early Childhood Education In Israel: Critical Feminist Pedagogy Perspective, Haggith Gor Ziv

Taboo: The Journal of Culture and Education

No abstract provided.


“I Just Love Kids . . . Is That A Problem?”: Desire, Suspicion, And Other Good Reasons Men Don’T Choose Early Childhood Education, Thomas Crisp, James R. King Sep 2017

“I Just Love Kids . . . Is That A Problem?”: Desire, Suspicion, And Other Good Reasons Men Don’T Choose Early Childhood Education, Thomas Crisp, James R. King

Taboo: The Journal of Culture and Education

No abstract provided.


Education For Whom? Word Problems As Carriers Of Cultural Values, Anita Bright Sep 2017

Education For Whom? Word Problems As Carriers Of Cultural Values, Anita Bright

Taboo: The Journal of Culture and Education

No abstract provided.


Editorial Introduction, Lori Latrice Martin, Kenneth J. Fasching-Varner Sep 2017

Editorial Introduction, Lori Latrice Martin, Kenneth J. Fasching-Varner

Taboo: The Journal of Culture and Education

No abstract provided.


Developmental Education: Preparing White Campuses For African-American Students, Aretha Faye Marbley, Fred Arthur Bonner Ii, Vicki A. Williams, Pamela Morris, Wendy Ross, Hansel Burley Sep 2017

Developmental Education: Preparing White Campuses For African-American Students, Aretha Faye Marbley, Fred Arthur Bonner Ii, Vicki A. Williams, Pamela Morris, Wendy Ross, Hansel Burley

Taboo: The Journal of Culture and Education

No abstract provided.


Observation Of A Large-Scale Anisotropy In The Arrival Directions Of Cosmic Rays Above 8 × 1018 Ev, A. Aab, P. Abreu, M. Aglietta, I. Al Samarai, I. F.M. Albuquerque, I. Allekotte, A. Almela, J. Alvarez Castillo, J. Alvarez-Muñiz, G. A. Anastasi, L. Anchordoqui, B. Andrada, S. Andringa, C. Aramo, F. Arqueros, N. Arsene, H. Asorey, P. Assis, J. Aublin, G. Avila, A. M. Badescu, A. Balaceanu, F. Barbato, R. J.Barreira Luz, J. J. Beatty, K. H. Becker, J. A. Bellido, C. Berat, M. E. Bertaina, X. Bertou, P. L. Biermann, P. Billoir, J. Biteau Sep 2017

Observation Of A Large-Scale Anisotropy In The Arrival Directions Of Cosmic Rays Above 8 × 1018 Ev, A. Aab, P. Abreu, M. Aglietta, I. Al Samarai, I. F.M. Albuquerque, I. Allekotte, A. Almela, J. Alvarez Castillo, J. Alvarez-Muñiz, G. A. Anastasi, L. Anchordoqui, B. Andrada, S. Andringa, C. Aramo, F. Arqueros, N. Arsene, H. Asorey, P. Assis, J. Aublin, G. Avila, A. M. Badescu, A. Balaceanu, F. Barbato, R. J.Barreira Luz, J. J. Beatty, K. H. Becker, J. A. Bellido, C. Berat, M. E. Bertaina, X. Bertou, P. L. Biermann, P. Billoir, J. Biteau

Faculty Publications

Cosmic rays are atomic nuclei arriving from outer space that reach the highest energies observed in nature. Clues to their origin come from studying the distribution of their arrival directions. Using 3 × 104 cosmic rays with energies above 8 × 1018 electron volts, recorded with the Pierre Auger Observatory from a total exposure of 76,800 km2 sr year, we determined the existence of anisotropy in arrival directions. The anisotropy, detected at more than a 5.2σ level of significance, can be described by a dipole with an amplitude of 6.5+1.3-0.9 percent toward right ascension αd = 100 ± 10 degrees …


A Critical Complex Epistemology Of Practice, Joe L. Kincheloe Sep 2017

A Critical Complex Epistemology Of Practice, Joe L. Kincheloe

Taboo: The Journal of Culture and Education

No abstract provided.


Effect Of Particulate Matter Mineral Composition On Environmentally Persistent Free Radical (Epfr) Formation, Elisabeth E. Feld-Cook, Lisa Bovenkamp-Langlois, Slawo M. Lomnicki Sep 2017

Effect Of Particulate Matter Mineral Composition On Environmentally Persistent Free Radical (Epfr) Formation, Elisabeth E. Feld-Cook, Lisa Bovenkamp-Langlois, Slawo M. Lomnicki

Faculty Publications

Environmentally Persistent Free Radicals (EPFRs) are newly discovered, long-lived surface bound radicals that form on particulate matter and combustion borne particulates, such as fly ash. Human exposure to such particulates lead to translocation into the lungs and heart resulting in cardio-vascular and respiratory disease through the production of reactive oxygen species. Analysis of some waste incinerator fly ashes revealed a significant difference between their EPFR contents. Although EPFR formation occurs on the metal domains, these differences were correlated with the altering concentration of calcium and sulfur. To analyze these phenomena, surrogate fly ashes were synthesized to mimic the presence of …


Gaussian Hypothesis Testing And Quantum Illumination, Mark M. Wilde, Marco Tomamichel, Seth Lloyd, Mario Berta Sep 2017

Gaussian Hypothesis Testing And Quantum Illumination, Mark M. Wilde, Marco Tomamichel, Seth Lloyd, Mario Berta

Faculty Publications

Quantum hypothesis testing is one of the most basic tasks in quantum information theory and has fundamental links with quantum communication and estimation theory. In this paper, we establish a formula that characterizes the decay rate of the minimal type-II error probability in a quantum hypothesis test of two Gaussian states given a fixed constraint on the type-I error probability. This formula is a direct function of the mean vectors and covariance matrices of the quantum Gaussian states in question. We give an application to quantum illumination, which is the task of determining whether there is a low-reflectivity object embedded …


Ar(1) Sequence With Random Coefficients:Regenerative Properties And Its Application, Krishna B. Athreya, Koushik Saha, Radhendushka Srivastava Sep 2017

Ar(1) Sequence With Random Coefficients:Regenerative Properties And Its Application, Krishna B. Athreya, Koushik Saha, Radhendushka Srivastava

Communications on Stochastic Analysis

No abstract provided.


All-Sky Search For Periodic Gravitational Waves In The O1 Ligo Data, B. P. Abbott, R. Abbott, T. D. Abbott, F. Acernese, K. Ackley, C. Adams, T. Adams, P. Addesso, R. X. Adhikari, V. B. Adya, C. Affeldt, M. Afrough, B. Agarwal, K. Agatsuma, N. Aggarwal, O. D. Aguiar, L. Aiello, A. Ain, P. Ajith, B. Allen, G. Allen, A. Allocca, P. A. Altin, A. Amato, A. Ananyeva, S. B. Anderson, W. G. Anderson, S. Antier, S. Appert, K. Arai, M. C. Araya, J. S. Areeda, N. Arnaud Sep 2017

All-Sky Search For Periodic Gravitational Waves In The O1 Ligo Data, B. P. Abbott, R. Abbott, T. D. Abbott, F. Acernese, K. Ackley, C. Adams, T. Adams, P. Addesso, R. X. Adhikari, V. B. Adya, C. Affeldt, M. Afrough, B. Agarwal, K. Agatsuma, N. Aggarwal, O. D. Aguiar, L. Aiello, A. Ain, P. Ajith, B. Allen, G. Allen, A. Allocca, P. A. Altin, A. Amato, A. Ananyeva, S. B. Anderson, W. G. Anderson, S. Antier, S. Appert, K. Arai, M. C. Araya, J. S. Areeda, N. Arnaud

Faculty Publications

We report on an all-sky search for periodic gravitational waves in the frequency band 20-475 Hz and with a frequency time derivative in the range of [-1.0,+0.1]×10-8 Hz/s. Such a signal could be produced by a nearby spinning and slightly nonaxisymmetric isolated neutron star in our galaxy. This search uses the data from Advanced LIGO's first observational run, O1. No periodic gravitational wave signals were observed, and upper limits were placed on their strengths. The lowest upper limits on worst-case (linearly polarized) strain amplitude h0 are ∼4×10-25 near 170 Hz. For a circularly polarized source (most favorable orientation), the smallest …


Parasite Biodiversity Faces Extinction And Redistribution In A Changing Climate, Colin J. Carlson, Kevin R. Burgio, Eric R. Dougherty, Anna J. Phillips, Veronica M. Bueno, Christopher F. Clements, Giovanni Castaldo, Tad A. Dallas, Carrie A. Cizauskas, Graeme S. Cumming, Jorge Doña, Nyeema C. Harris, Roger Jovani, Sergey Mironov, Oliver C. Muellerklein, Heather C. Proctor, Wayne M. Getz Sep 2017

Parasite Biodiversity Faces Extinction And Redistribution In A Changing Climate, Colin J. Carlson, Kevin R. Burgio, Eric R. Dougherty, Anna J. Phillips, Veronica M. Bueno, Christopher F. Clements, Giovanni Castaldo, Tad A. Dallas, Carrie A. Cizauskas, Graeme S. Cumming, Jorge Doña, Nyeema C. Harris, Roger Jovani, Sergey Mironov, Oliver C. Muellerklein, Heather C. Proctor, Wayne M. Getz

Faculty Publications

Copyright © 2017 The Authors, some rights reserved. Climate change is a well-documented driver of both wildlife extinction and disease emergence, but the negative impacts of climate change on parasite diversity are undocumented. We compiled the most comprehensive spatially explicit data set available for parasites, projected range shifts in a changing climate, and estimated extinction rates for eight major parasite clades. On the basis of 53, 133 occurrences capturing the geographic ranges of 457 parasite species, conservative model projections suggest that 5 to 10% of these species are committed to extinction by 2070 from climate-driven habitat loss alone. We find …


Feedstock Crop Production Costs And Biofuel Feedstock Input Costs Associated With The Production Of Energy Cane And Sweet Sorghum In The Southeastern Usa, Michael E. Salassi, Alessandro Holzapfel, Brian M. Hilbun, Michael A. Deliberto, Kenneth A. Gravois, Howard P. Viator, Lawrence L. Falconer, Tyler B. Mark Sep 2017

Feedstock Crop Production Costs And Biofuel Feedstock Input Costs Associated With The Production Of Energy Cane And Sweet Sorghum In The Southeastern Usa, Michael E. Salassi, Alessandro Holzapfel, Brian M. Hilbun, Michael A. Deliberto, Kenneth A. Gravois, Howard P. Viator, Lawrence L. Falconer, Tyler B. Mark

Faculty Publications

© 2017, The Author(s). Concentration of biofuel feedstock crop production in specific regions of the USA is dependent on the relative comparative advantage of production in a specific region based on several agronomic and economic factors. For the southeastern region of the USA, energy cane and sweet sorghum have been identified as two feedstock crops with the greatest potential for further development of production. This study utilized field trial data from yield studies in Louisiana to develop estimates of feedstock crop production costs and biofuel feedstock input costs for these two crops. Results indicated that feedstock production costs on a …


The Sage-Spec Spitzer Legacy Program: The Life-Cycle Of Dust And Gas In The Large Magellanic Cloud. Point Source Classification - Iii, O. C. Jones, P. M. Woods, F. Kemper, K. E. Kraemer, G. C. Sloan, S. Srinivasan, J. M. Oliveira, J. Th Van Loon, M. L. Boyer, B. A. Sargent, I. Mcdonald, M. Meixner, A. A. Zijlstra, P. M.E. Ruffle, E. Lagadec, T. Pauly, M. Sewilo, G. C. Clayton, K. Volk Sep 2017

The Sage-Spec Spitzer Legacy Program: The Life-Cycle Of Dust And Gas In The Large Magellanic Cloud. Point Source Classification - Iii, O. C. Jones, P. M. Woods, F. Kemper, K. E. Kraemer, G. C. Sloan, S. Srinivasan, J. M. Oliveira, J. Th Van Loon, M. L. Boyer, B. A. Sargent, I. Mcdonald, M. Meixner, A. A. Zijlstra, P. M.E. Ruffle, E. Lagadec, T. Pauly, M. Sewilo, G. C. Clayton, K. Volk

Faculty Publications

The Infrared Spectrograph (IRS) on the Spitzer Space Telescope observed nearly 800 point sources in the Large Magellanic Cloud (LMC), taking over 1000 spectra. 197 of these targets were observed as part of the SAGE-Spec Spitzer Legacy program; the remainder are from a variety of different calibration, guaranteed time and open time projects.We classify these point sources into types according to their infrared spectral features, continuum and spectral energy distribution shape, bolometric luminosity, cluster membership and variability information, using a decision-tree classification method.We then refine the classification using supplementary information from the astrophysical literature. We find that our IRS sample …


Measurement Of Ν¯Μ And Νμ Charged Current Inclusive Cross Sections And Their Ratio With The T2k Off-Axis Near Detector, K. Abe, J. Amey, C. Andreopoulos, M. Antonova, S. Aoki, A. Ariga, Y. Ashida, S. Ban, M. Barbi, G. J. Barker, G. Barr, C. Barry, M. Batkiewicz, V. Berardi, S. Berkman, S. Bhadra, S. Bienstock, A. Blondel, S. Bolognesi, S. Bordoni, S. B. Boyd, D. Brailsford, A. Bravar, C. Bronner, M. Buizza Avanzini, R. G. Calland, T. Campbell, S. Cao Sep 2017

Measurement Of Ν¯Μ And Νμ Charged Current Inclusive Cross Sections And Their Ratio With The T2k Off-Axis Near Detector, K. Abe, J. Amey, C. Andreopoulos, M. Antonova, S. Aoki, A. Ariga, Y. Ashida, S. Ban, M. Barbi, G. J. Barker, G. Barr, C. Barry, M. Batkiewicz, V. Berardi, S. Berkman, S. Bhadra, S. Bienstock, A. Blondel, S. Bolognesi, S. Bordoni, S. B. Boyd, D. Brailsford, A. Bravar, C. Bronner, M. Buizza Avanzini, R. G. Calland, T. Campbell, S. Cao

Faculty Publications

We report a measurement of cross section σ(νμ+nucleus→μ-+X) and the first measurements of the cross section σ(ν-μ+nucleus→μ++X) and their ratio R(σ(ν-)σ(ν)) at (anti) neutrino energies below 1.5 GeV. We determine the single momentum bin cross section measurements, averaged over the T2K ν-/ν-flux, for the detector target material (mainly carbon, oxygen, hydrogen and copper) with phase space restricted laboratory frame kinematics of θμ500 MeV/c. The results are σ(ν-)=(0.900±0.029(stat)±0.088(syst))×10-39 and σ(ν)=(2.41±0.022(stat)±0.231(syst))×10-39 in units of cm2/nucleon and R(σ(ν-)σ(ν))=0.373±0.012(stat)±0.015(syst).


Expanding Hot Flow In The Black Hole Binary Swift J1753.5-0127: Evidence From Optical Timing, Alexandra Veledina, Poshak Gandhi, Robert Hynes, Jari J.E. Kajava, Sergey S. Tsygankov, Michail G. Revnivtsev, Martin Durant, Juri Poutanen Sep 2017

Expanding Hot Flow In The Black Hole Binary Swift J1753.5-0127: Evidence From Optical Timing, Alexandra Veledina, Poshak Gandhi, Robert Hynes, Jari J.E. Kajava, Sergey S. Tsygankov, Michail G. Revnivtsev, Martin Durant, Juri Poutanen

Faculty Publications

We describe the evolution of optical and X-ray temporal characteristics during the outburst decline of the black hole X-ray binary SWIFT J1753.5-0127. The optical/X-ray crosscorrelation function demonstrates a single positive correlation at the outburst peak, then it has multiple dips and peaks during the decline stage, which are then replaced by the precognition dip plus peak structure in the outburst tail. Power spectral densities and phase lags show a complex evolution, revealing the presence of intrinsically connected optical and X-ray quasi-periodic oscillations. For the first time, we quantitatively explain the evolution of these timing properties during the entire outburst within …


Effect Of Dietary Salt Intake On Epithelial Na+ Channels (Enac) In Vasopressin Magnocellular Neurosecretory Neurons In The Rat Supraoptic Nucleus, Kaustubh Sharma, Masudul Haque, Richard Guidry, Yoichi Ueta, Ryoichi Teruyama Sep 2017

Effect Of Dietary Salt Intake On Epithelial Na+ Channels (Enac) In Vasopressin Magnocellular Neurosecretory Neurons In The Rat Supraoptic Nucleus, Kaustubh Sharma, Masudul Haque, Richard Guidry, Yoichi Ueta, Ryoichi Teruyama

Faculty Publications

© 2017 The Authors. The Journal of Physiology published by John Wiley & Sons Ltd on behalf of The Physiological Society Key points: A growing body of evidence suggests that epithelial Na+ channels (ENaCs) in the brain play a significant role in the regulation of blood pressure; however, the brain structures that mediate the effect are not well understood. Because vasopressin (VP) neurons play a pivotal role in coordinating neuroendocrine and autonomic responses to maintain cardiovascular homeostasis, a basic understanding of the regulation and activity of ENaC in VP neurons is of great interest. We show that high dietary salt …


On The Gan–Gross–Prasad Conjecture For U(P, Q), Hongyu He Sep 2017

On The Gan–Gross–Prasad Conjecture For U(P, Q), Hongyu He

Faculty Publications

In this paper, we give a proof of the Gan–Gross–Prasad conjecture for the discrete series of U(p, q). There are three themes in this paper: branching laws of a small Aq(λ) , branching laws of discrete series and inductive construction of discrete series. These themes are linked together by a reciprocity law and the notion of invariant tensor product.


A Magnetic Topological Semimetal Sr1-Y Mn1-Zsb2 (Y, Z < 0.1), J. Y. Liu, J. Hu, Q. Zhang, D. Graf, H. B. Cao, S. M.A. Radmanesh, D. J. Adams, Y. L. Zhu, G. F. Cheng, X. Liu, W. A. Phelan, J. Wei, M. Jaime, F. Balakirev, D. A. Tennant, J. F. Ditusa, I. Chiorescu, L. Spinu, Z. Q. Mao Sep 2017

A Magnetic Topological Semimetal Sr1-Y Mn1-Zsb2 (Y, Z < 0.1), J. Y. Liu, J. Hu, Q. Zhang, D. Graf, H. B. Cao, S. M.A. Radmanesh, D. J. Adams, Y. L. Zhu, G. F. Cheng, X. Liu, W. A. Phelan, J. Wei, M. Jaime, F. Balakirev, D. A. Tennant, J. F. Ditusa, I. Chiorescu, L. Spinu, Z. Q. Mao

Faculty Publications

Weyl (WSMs) evolve from Dirac semimetals in the presence of broken time-reversal symmetry (TRS) or space-inversion symmetry. The WSM phases in TaAs-class materials and photonic crystals are due to the loss of space-inversion symmetry. For TRS-breaking WSMs, despite numerous theoretical and experimental efforts, few examples have been reported. In this Article, we report a new type of magnetic semimetal Sr1-y Mn1-z Sb2 (y, z < 0.1) with nearly massless relativistic fermion behaviour (m-=0.04-0.05m0, where m 0 is the free-electron mass). This material exhibits a ferromagnetic order for 304 K


Application Of An Advanced Maximum Likelihood Estimation Restoration Method For Enhanced-Resolution And Contrast In Second-Harmonic Generation Microscopy, Mayandi Sivaguru, Mohammad M. Kabir, Manas Ranjan Gartia, David S.C. Biggs, Barghav S. Sivaguru, Vignesh A. Sivaguru, Glenn A. Fried, Gang Logan Liu, Sakthivel Sadayappan, Kimani C. Toussaint Sep 2017

Application Of An Advanced Maximum Likelihood Estimation Restoration Method For Enhanced-Resolution And Contrast In Second-Harmonic Generation Microscopy, Mayandi Sivaguru, Mohammad M. Kabir, Manas Ranjan Gartia, David S.C. Biggs, Barghav S. Sivaguru, Vignesh A. Sivaguru, Glenn A. Fried, Gang Logan Liu, Sakthivel Sadayappan, Kimani C. Toussaint

Faculty Publications

Second-harmonic generation (SHG) microscopy has gained popularity because of its ability to perform submicron, label-free imaging of noncentrosymmetric biological structures, such as fibrillar collagen in the extracellular matrix environment of various organs with high contrast and specificity. Because SHG is a two-photon coherent scattering process, it is difficult to define a point spread function (PSF) for this modality. Hence, compared to incoherent two-photon processes like two-photon fluorescence, it is challenging to apply the various PSF-engineering methods to improve the spatial resolution to be close to the diffraction limit. Using a synthetic PSF and application of an advanced maximum likelihood estimation …


Conditional Mutual Information And Quantum Steering, Eneet Kaur, Xiaoting Wang, Mark M. Wilde Aug 2017

Conditional Mutual Information And Quantum Steering, Eneet Kaur, Xiaoting Wang, Mark M. Wilde

Faculty Publications

Quantum steering has recently been formalized in the framework of a resource theory of steering, and several quantifiers have already been introduced. Here, we propose an information-theoretic quantifier for steering called intrinsic steerability, which uses conditional mutual information to measure the deviation of a given assemblage from one having a local-hidden-state model. We thus relate conditional mutual information to quantum steering and introduce monotones that satisfy certain desirable properties. The idea behind the quantifier is to suppress the correlations that can be explained by an inaccessible quantum system and then quantify the remaining intrinsic correlations. A variant of the intrinsic …


Rice Hull Bioreactor For Recirculating Aquaculture, Marlon A. Greensword Aug 2017

Rice Hull Bioreactor For Recirculating Aquaculture, Marlon A. Greensword

LSU Doctoral Dissertations

The engineering of floating media biofilters has been optimized over the years. The backwashing process has made them more energy and water efficient. Likewise, moving bed bioreactors (MBBR) are gaining interest and popularity because they are relatively affordable to build. Yet, developing countries’ aquaculture production remains largely excluded from the advances made in recirculating aquaculture systems (RAS). This discrepancy is partially driven by the high costs of media such plastic beads and Kaldnes (KMT) media, commonly used in MBBR.

This dissertation evaluates the usability and profitability of rice hulls (RH), an abundant by-product in many developing nations, as a sinking …


Perceived Teacher Preparation For Managing Parental Involvement In Parochial High Schools In A South Louisiana Catholic Diocese, Susan T. Crochet Aug 2017

Perceived Teacher Preparation For Managing Parental Involvement In Parochial High Schools In A South Louisiana Catholic Diocese, Susan T. Crochet

LSU Doctoral Dissertations

The primary purpose of this exploratory study was to determine the perceived level of preparedness for managing parental involvement and the source of that preparation among secondary teachers in parochial high schools in a south Louisiana Catholic diocese. The target population of the study was secondary parochial school teachers in Louisiana. The accessible population was secondary parochial high school teachers in one Catholic Diocese in south Louisiana. Data were collected using a survey design. Key findings indicate that most of the participants held a bachelor’s degree and that most obtained their preparation for dealing with parental involvement on their own …


Applications Of Cfd Simulations On Chemical Processing Equipment Designs, Gongqiang He Aug 2017

Applications Of Cfd Simulations On Chemical Processing Equipment Designs, Gongqiang He

LSU Doctoral Dissertations

The objective of this work is to achieve process intensification by seeking optimal equipment design with CFD investigations. In this work, two projects on chemical equipment design have been discussed.

The first project is on design and optimization of fractal distributor in a novel ion-exchanger. Flow distributors are adopted extensively by chemical industry to distribute an incoming process stream uniformly to the downstream equipment. Currently, the performance of chemical equipment installed with conventional distributor is severely undermined due to poor flow distribution. For conventional distributors such as spray nozzle distributors, their design concept is based on maintaining very high pressure …


Influences Of Hurricanes, Floods, And Organic Production On River-Delta Evolution Over Decadal To Centennial Time-Scales, Crawford M. White Aug 2017

Influences Of Hurricanes, Floods, And Organic Production On River-Delta Evolution Over Decadal To Centennial Time-Scales, Crawford M. White

LSU Doctoral Dissertations

Episodic overbank flooding and sediment resuspension events (such as cold front passages or tropical cyclones) are recognized as important natural components for wetlands maintaining vertical equilibrium with sea-level. However, the relative importance of these components to an anthropogenically unmodified delta complex remains unclear. This study uses sediment cores to describe the relative importance of these vertical accretion components the Lafourche and Balize Deltas of the Mississippi River. Existing wetlands of the abandoned lower Lafourche receive no direct fluvial sediment, but instead are supported by sediment resuspended by tropical cyclones and cold fronts that pass over them. Wetlands of the modern …


Data-Driven Abstraction, Vivian Mankau Ho Aug 2017

Data-Driven Abstraction, Vivian Mankau Ho

LSU Master's Theses

Given a program analysis problem that consists of a program and a property of interest, we use a data-driven approach to automatically construct a sequence of abstractions that approach an ideal abstraction suitable for solving that problem. This process begins with an infinite concrete domain that maps to a finite abstract domain defined by statistical procedures resulting in a clustering mixture model. Given a set of properties expressed as formulas in a restricted and bounded variant of CTL, we can test the success of the abstraction with respect to a predefined performance level. In addition, we can perform iterative abstraction-refinement …


Executive Dysfunction Or State Regulation: A Dimensional Comparison Of Two Neuropsychological Theories Of Attention Disorder Symptoms Using Rdoc Paradigms, Justin Hull Ory Aug 2017

Executive Dysfunction Or State Regulation: A Dimensional Comparison Of Two Neuropsychological Theories Of Attention Disorder Symptoms Using Rdoc Paradigms, Justin Hull Ory

LSU Doctoral Dissertations

Two leading theories regarding the neurocognitive basis of attentional disorders are the executive dysfunction theory and the state regulation theory. The executive dysfunction theory takes a top-down approach, explaining the symptoms of ADHD as a byproduct of general deficits in executive functioning—particularly disinhibition. The state regulation theory takes a bottom-up approach, explaining the symptoms of ADHD as a failure to be sufficiently aroused by, and subsequently engage with, less stimulating or rewarding tasks. These two theories predict different patterns of performance on tasks of executive functioning and attention, and research has demonstrated mixed support for both theories. The present study …


Investigating Core Shale Depositional Environments Of Late Pennsylvanian Cyclothems Utilizing Geochemical Proxies To Test The Superestuarine Model, Bryce A. Mathis Aug 2017

Investigating Core Shale Depositional Environments Of Late Pennsylvanian Cyclothems Utilizing Geochemical Proxies To Test The Superestuarine Model, Bryce A. Mathis

LSU Master's Theses

The Late Paleozoic Midcontinent Sea (LPMS) inundated vast areas of the North American interior during glacio-eustatic transgressions, depositing widespread black shales facies within the core shale intervals of major cyclothems. These black shale deposits are unique because no modern analogs can adequately explain the depositional environments and model for organic matter preservation across such vast ancient epicontinental settings. One possible explanation is that a superestuarine circulation system developed across the LPMS during humid interglacial phases, which promoted strong water column stratification and benthic anoxia.

The goal of this research was to test the validity of the superestuarine estuarine model and …


Information Theoretic Study Of Gaussian Graphical Models And Their Applications, Ali Moharrer Aug 2017

Information Theoretic Study Of Gaussian Graphical Models And Their Applications, Ali Moharrer

LSU Doctoral Dissertations

In many problems we are dealing with characterizing a behavior of a complex stochastic system or its response to a set of particular inputs. Such problems span over several topics such as machine learning, complex networks, e.g., social or communication networks; biology, etc. Probabilistic graphical models (PGMs) are powerful tools that offer a compact modeling of complex systems. They are designed to capture the random behavior, i.e., the joint distribution of the system to the best possible accuracy. Our goal is to study certain algebraic and topological properties of a special class of graphical models, known as Gaussian graphs. First, …


Hydroformylation And Aldehyde-Water Shift Catalysis By Dirhodium Tetraphosphine Complexes, Marshall Douglas Moulis Aug 2017

Hydroformylation And Aldehyde-Water Shift Catalysis By Dirhodium Tetraphosphine Complexes, Marshall Douglas Moulis

LSU Doctoral Dissertations

The use of a unique tetraphosphine ligand (et,ph-P4) allows for the chelating of two rhodium centers to perform bimetallic coopertivity in hydroformylation reactions to better the yields the linear aldehyde product. The proposed catalyst is [Rh2(μ-H)2(CO)4(rac-et,ph-P4)]2+ and has been studied by in situ FT-IR and NMR. When tested in a polar phasic acetone/water (30 % by vol.), the catalyst forms a monocationic system [Rh2(μ-H)2(CO)4(rac-et,ph-P4)]+ that has an initial TOF of 26 min-1, selectivity of 27:1 L:B, and low byproducts of …