Resource Type
Partner
Collection
UNT Theses and Dissertations
432
Office of Scientific & Technical Information Technical Reports
257
Technical Report Archive and Image Library
5
TRAIL Microcard Collection
3
UNT Undergraduate Student Works
3
UNT Graduate Student Works
2
Abilene Library Consortium
1
National Advisory Committee for Aeronautics Collection
1
Sayles and Sayles Collection
1
Southwestern University Archival Collections
1
1 More
Degree Department
Degree Discipline
Degree Level
States
Decade
Month
Language
702 Matching Results
Results open in a new window/tab.
Results:
1 - 24 of
702
next
From Radian Waves to Data Streams: Media Environments in DeLillo and Shteyngart
Undergraduate thesis examining representations of media and technology in two contemporary American novels, "White Noise" by Don DeLillo (1985) and "Super Sad True Love Story" by Gary Shteyngart (2010), with the goal of elucidating the attributes and significance of the technological contexts in fiction as well as contributing to a broader discussion of its operations on consciousness, society, and the cultural imagination.
Date:
June 13, 2014
Creator:
Young, Michael
System:
The UNT Digital Library
National Identity and Anxiety in the Captivity Narratives of Mary Rowlandson and Mary Godfrey
Undergraduate thesis expanding exploring the 1836 captivity narrative "An Authentic Narrative of the Seminole War; and the Miraculous Escape of Mrs. Mary Godfrey, and Her Four Female Children." Unlike Mary Rowlandson's "The Sovereignty and Goodness of God," the anonymously-authored "An Authentic Narrative" is almost certainly fabricated. There are no records of a Mrs. Mary Godfrey being captured and redeemed, or even existing at all. However, like Rowlandson's captivity narrative, it attempts to use a woman's experience of captivity to defend and stabilize a national male identity. "An Authentic Narrative" is a variation on the captivity genre that indicates a shift toward the white fraternal national identity described by Dana E. Nelson, even as the female captive's rescue by an escaped slave and the deaths of the white, male rescuers point to the fundamental incoherence of this national identity.
Date:
June 13, 2014
Creator:
Smith, Caitlin
System:
The UNT Digital Library
Lessons from the Past: Possible Courses of Action for the Conflict in Syria
Undergraduate thesis examining the Syrian conflict and the international community's struggle to find an appropriate response. This thesis reviews the conflicts that occurred in Bosnia and Rwanda, the interventions that took place within these states, and how a resolution to these conflicts was created. From this information, the author determines what conflict management strategies had the most success and what types of outside interventions were failures and the similarities of these instances to the Syrian conflict. Further intervention strategies and reasonings are presented that could be applied in Syria.
Date:
June 8, 2014
Creator:
Carter, Rachel
System:
The UNT Digital Library
A Search for the Rare Decay B^0 \to gamma gamma
None
Date:
June 13, 2013
Creator:
Ruland, Andrew Michael & /U. Texas, Austin /SLAC
System:
The UNT Digital Library
A Measurement of Neutral B Mixing using Di-Lepton Events with the BaBar Detector
None
Date:
June 11, 2013
Creator:
Gunawardane, N.
System:
The UNT Digital Library
A Measurement of the Branching Fractions and CP Asymmetries of the Decays B+ \to K*+ pi0 and B+ \to rho+ pi0 at BaBar
None
Date:
June 11, 2013
Creator:
Gaillard, James Robert
System:
The UNT Digital Library
A Measurement of the Exclusive Branching Fraction for B \to pi K at BaBar
None
Date:
June 11, 2013
Creator:
Aspinwall, L.
System:
The UNT Digital Library
Monte-Carlo Analysis of the Flavour Changing Neutral Current B \to Gamma at Babar
None
Date:
June 11, 2013
Creator:
Smith, D.
System:
The UNT Digital Library
Study of Charmless Semileptonic B Decays And a Measurement of the CKM Matrix Element |Vub| at BaBar
None
Date:
June 11, 2013
Creator:
Taylor, G.P.
System:
The UNT Digital Library
A Study of the Rare Charmless Hadronic B Decay B \to a0 + pi0 Using the BaBar Detector
None
Date:
June 11, 2013
Creator:
Panduro-Vazquez, William
System:
The UNT Digital Library
Study of the Rare Hadronic Decays Ds+ \to K+ pi0, Ds+ \to pi+ K0s and Ds+ \to pi+ pi0 at BaBar
None
Date:
June 11, 2013
Creator:
Nikolich, Michael Borivoje
System:
The UNT Digital Library
Study of |Vtd/Vts| Using a Sum of Exclusive B \to X Gamma Final States Reconstructed With the BaBar Detector
None
Date:
June 11, 2013
Creator:
Tibbetts, Mark James
System:
The UNT Digital Library
Investigation of the Charmless Decay B+- \rightarrow K+- K-+ K+- Using a Dalitz Plot Analysis at BaBar
None
Date:
June 10, 2013
Creator:
Hart, Alistair Jepson & U., /Birmingham
System:
The UNT Digital Library
Measurement of D0 - Anti-D0 Mixing With a Time-Dependent Amplitude Analysis of D0 \rightarrow K+ Pi- Pi0
None
Date:
June 10, 2013
Creator:
Pelliccioni, Mario & U., /Turin
System:
The UNT Digital Library
Cellular membrane trafficking of mesoporous silica nanoparticles
This dissertation mainly focuses on the investigation of the cellular membrane trafficking of mesoporous silica nanoparticles. We are interested in the study of endocytosis and exocytosis behaviors of mesoporous silica nanoparticles with desired surface functionality. The relationship between mesoporous silica nanoparticles and membrane trafficking of cells, either cancerous cells or normal cells was examined. Since mesoporous silica nanoparticles were applied in many drug delivery cases, the endocytotic efficiency of mesoporous silica nanoparticles needs to be investigated in more details in order to design the cellular drug delivery system in the controlled way. It is well known that cells can engulf some molecules outside of the cells through a receptor-ligand associated endocytosis. We are interested to determine if those biomolecules binding to cell surface receptors can be utilized on mesoporous silica nanoparticle materials to improve the uptake efficiency or govern the mechanism of endocytosis of mesoporous silica nanoparticles. Arginine-glycine-aspartate (RGD) is a small peptide recognized by cell integrin receptors and it was reported that avidin internalization was highly promoted by tumor lectin. Both RGD and avidin were linked to the surface of mesoporous silica nanoparticle materials to investigate the effect of receptor-associated biomolecule on cellular endocytosis efficiency. The effect of ligand …
Date:
June 21, 2012
Creator:
Fang, I-Ju
System:
The UNT Digital Library
Developing nanotechnology for biofuel and plant science applications
This dissertation presents the research on the development of mesoporous silica based nanotechnology for applications in biofuels and plant science. Mesoporous silica nanoparticles (MSNs) have been the subject of great interest in the last two decades due to their unique properties of high surface area, tunable pore size and particle morphology. The robust nature of the silica framework is easily functionalized to make the MSNs a promising option for selective separations. Also, the independent channels that form the pores of MSN have been exploited in the use of particles as platforms for molecular delivery. Pore size and organic functionality are varied to identify the ideal adsorbent material for free fatty acids (FFAs). The resulting material is able to sequester FFAs with a high degree of selectivity from a simulated solution and microalgal oil. The recyclability and industrial implications are also explored. A continuation of the previous material, further tuning of MSN pore size was investigated. Particles with a smaller diameter selectively sequester polyunsaturated free fatty acids (PUFAs) over monounsaturated FFAs and saturated FFAs. The experimental results were verified with molecular modeling. Mesoporous silica nanoparticle materials with a pore diameter of 10 nm (MSN-10) were decorated with small gold nanoparticles. The …
Date:
June 20, 2012
Creator:
Valenstein, Justin
System:
The UNT Digital Library
Unorthodox theoretical methods
The use of the ReaxFF force field to correlate with NMR mobilities of amine catalytic substituents on a mesoporous silica nanosphere surface is considered. The interfacing of the ReaxFF force field within the Surface Integrated Molecular Orbital/Molecular Mechanics (SIMOMM) method, in order to replicate earlier SIMOMM published data and to compare with the ReaxFF data, is discussed. The development of a new correlation consistent Composite Approach (ccCA) is presented, which incorporates the completely renormalized coupled cluster method with singles, doubles and non-iterative triples corrections towards the determination of heats of formations and reaction pathways which contain biradical species.
Date:
June 20, 2012
Creator:
Nedd, Sean
System:
The UNT Digital Library
Controlling atomistic processes on Pb films via quantum size effects and lattice rotation
The two main techniques used to record the data in this dissertation were Spot Profile Analysis - Low Energy Electron Diffraction (SPA-LEED) and Scanning Tunneling Microscopy (STM). A specific data analysis technique for LEED data called G(S) curves is described in depth. G(S) curves can provide a great deal of structural information about the surface; including step heights, island size, and island separation. The effects of quantum size effects (QSE) on the diffusion and critical island sizes of Pb and In on Pb #12;films are reported. Pb depositions on the 2D In phases {radical}3 and {radical}31 to see how the phases affect the Pb growth and its strong QSE are reported.
Date:
June 14, 2012
Creator:
Binz, Steven
System:
The UNT Digital Library
Search for CP violation in singly Cabibbo suppressed four-body D decays
We search for CP violation in a sample of 4.7 x 10{sup 4} singly Cabibbo suppressed D{sup 0} {yields} K{sup +} K{sup -} {pi}{sup +}{pi}{sup -} decays and 1.8(2.6) x 10{sup 4} D{sub (s)}{sup +} {yields} K{sub S}{sup 0} K{sup +} {pi}{sup +} {pi}{sup -} decays. CP violation is searched for in the difference between the T-odd asymmetries, obtained using triple product correlations, measured for D and {bar D} decays. The measured CP violation parameters are A{sub T}(D{sup 0}) = (1.0 {+-} 5.1(stat) {+-} 4.4(syst)) x 10{sup -3}, A{sub T}(D{sup +}) = (-11.96 {+-} 10.04(stat) {+-} 4.81(syst)) x 10{sup -3} and A{sub T}(D{sub s}{sup +}) = (-13.57 {+-} 7.67(stat) {+-} 4.82(syst)) x 10{sup -3}. This search for CP violation showed that the T-odd correlations are a powerful tool to measure the CP violating observable A{sub T}. The relative simplicity of an analysis based on T-odd correlations and the high quality results that can be obtained, allow to consider this tool as fundamental to search for CP violation in four-body decays. Even if the CP violation has not been found, excluding any New Physics effect to the sensitivity of about 0.5%, it is still worth to search for CP violation in …
Date:
June 22, 2011
Creator:
Martinelli, Maurizio & U., /Bari
System:
The UNT Digital Library
Search for a Standard Model Higgs Boson with a Dilepton and Missing Energy Signature
The subject of this thesis is the search for a standard model Higgs boson decaying to a pair of W bosons that in turn decay leptonically, H {yields} W{sup +}W{sup -} {yields} {bar {ell}}{nu}{ell}{bar {nu}}. This search is performed considering events produced in p{bar p} collisions at {radical}s = 1.96 TeV, where two oppositely charged lepton candidates (e{sup +}e{sup -}, e{sup {+-}}{mu}{sup {-+}}, or {mu}{sup +}{mu}{sup -}), and missing transverse energy, have been reconstructed. The data were collected with the D0 detector at the Fermilab Tevatron collider, and are tested against the standard model predictions computed for a Higgs boson with mass in the range 115-200 GeV. No excess of events over background is observed, and limits on Standard Model Higgs boson production are determined. An interpretation of these limits within the hypothesis of a fourth-generation extension to the standard model is also given. The overall analysis scheme is the same for the three dilepton pairs being considered (e{sup +}e{sup -}, e{sup {+-}}{mu}{sup {-+}}, or {mu}{sup +}{mu}{sup -}); this thesis, however, describes in detail the study of the dimuon final state.
Date:
June 1, 2011
Creator:
Gerbaudo, Davide
System:
The UNT Digital Library
SQUID magnetometry from nanometer to centimeter length scales
The development of Superconducting QUantum Interference Device (SQUID)-based magnetometer for two applications, in vivo prepolarized, ultra-low field MRI of humans and dispersive readout of SQUIDs for micro- and nano-scale magnetometery, are the focus of this thesis.
Date:
June 28, 2010
Creator:
Hatridge, Michael J.
System:
The UNT Digital Library
Finding the Higgs boson of the standard model in the channel ZH → e<sup>+</sup>e<sup>-</sup>b$\bar{b}$ with the D0 detector at the Tevatron; Recherche du boson de Higgs du nideke standard dans le canal ZH → e<sup>+</sup>e<sup>-</sup>b$\bar{b}$ Avec le Detecteur DØ Aupres du Tevatron
The organization of this thesis consists of three main ideas: the first presents the theoretical framework and experimental, as well as objects used in the analysis and the second relates to the various work tasks of service that I performed on the calorimeter, and the third is the search for the Higgs boson in the channel ZH → e<sup>+</sup>e<sup>-</sup>b$\bar{b}$. Thus, this thesis has the following structure: Chapter 1 is an introduction to the standard model of particle physics and the Higgs mechanism; Chapter 2 is an overview of the complex and the acceleration of the Tevatron at Fermilab DØ detector; Chapter 3 is an introduction to physical objects used in this thesis; Chapter 4 presents the study made on correcting the energy measured in the calorimeter; Chapter 5 describes the study of certification of electrons in the calorimeter; Chapter 6 describes the study of certification of electrons in the intercryostat region of calorimeter; Chapter 7 Detailed analysis on the search for Higgs production in the channel ZH → e<sup>+</sup>e<sup>-</sup>b$\bar{b}$; and Chapter 8 presents the final results of the calculations of upper limits to the production cross section of the Higgs boson on a range of low masses.
Date:
June 11, 2010
Creator:
Calpas, Betty Constante
System:
The UNT Digital Library
Leptonic Decays of the Charged B Meson
The authors present a search for the decay B{sup +} {yields} {ell}{sup +}{nu}{sub {ell}} ({ell} = {tau}, {mu}, or e) in (458.9 {+-} 5.1) x 10{sup 6} {Upsilon}(4S) decays recorded with the BABAR detector at the SLAC PEP-II B-Factory. A sample of events with one reconstructed exclusive semi-leptonic B decay (B{sup -} {yields} D{sup 0}{ell}{sup -}{bar {nu}}X) is selected, and in the recoil a search for B{sup +} {yields} {ell}{sup +}{nu}{sub {ell}} signal is performed. The {tau} is identified in the following channels: {tau}{sup +} {yields} e{sup +}{nu}{sub e}{bar {nu}}{sub {tau}}, {tau}{sup +} {yields} {mu}{sup +}{nu}{sub {mu}}{bar {nu}}{sub {tau}}, {tau}{sup +} {yields} {pi}{sup +}{bar {nu}}{sub {tau}}, and {tau}{sup +} {yields} {pi}{sup +}{pi}{sup 0}{bar {nu}}{sub {tau}}. The analysis strategy and the statistical procedure is set up for branching fraction extraction or upper limit determination. They determine from the dataset a preliminary measurement of {Beta}(B{sup +} {yields} {tau}{sup +}{nu}{sub {tau}}) = (1.8 {+-} 0.8 {+-} 0.1) x 10{sup -4}, which excludes zero at 2.4{sigma}, and f{sub B} = 255 {+-} 58 MeV. Combination with the hadronically tagged measurement yields {Beta}(B{sup +} {yields} {tau}{sup +}{nu}{sub {tau}}) = (1.8 {+-} 0.6) x 10{sup -4}. They also set preliminary limits on the branching fractions at …
Date:
June 11, 2010
Creator:
Corwin, Luke A.
System:
The UNT Digital Library
Correlation Femtoscopy of Hyperons Produced in Interactions of Hyperons with Nuclei with 600 GeV Energy
None
Date:
June 1, 2010
Creator:
Romanov, Dmitry
System:
The UNT Digital Library