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The ill effects of World Wide Web on the Google Generation: An analysis and criticism of ways in which the World Wide Web is altering young learners’ cognitive behaviors
Article accompanying the Proceedings of HCI 2011 The 25th BCS Conference on Human Computer Interaction. This paper explores the World Wide Web's effect on the Google Generation/those born after 1993.
Date:
July 2011
Creator:
Fong, Michele Wong Kung
System:
The UNT Digital Library
Optimization of nonlinear optical properties of ZnO micro and nanocrystals for biophotonics
This article investigates the defects in ZnO created during its synthesis and its affect on the second and third-order nonlinear processes.
Date:
July 21, 2011
Creator:
Urban, Ben E.; Lin, Jie; Kumar, Os; Senthilkumar, Kasilingam; Fujita, Yasuhisa & Neogi, Arup
System:
The UNT Digital Library
High Resolution Photon Timing with MCP-PMTs: A Comparison of a Commercial Constant Fraction Discriminator (CFD) with the ASIC-based Waveform Digitizers TARGET and WaveCatcher
There is a considerable interest to develop new time-of-flight detectors using, for example, micro-channel-plate photodetectors (MCP-PMTs). The question we pose in this paper is if new waveform digitizer ASICs, such as the WaveCatcher and TARGET, operating with a sampling rate of 2-3 GSa/s can compete with 1GHz BW CFD/TDC/ADC electronics. We have performed a series of measurements with these waveform digitizers coupled to MCP-PMTs operating at low gain and with a signal equivalent to {approx}40 photoelectrons. The tests were done with a laser diode on detectors operating under the same condition used previously in SLAC and Fermilab beam tests. Our test results indicate that one can achieve similar resolution with both methods. Although the commercial CFD-based electronics does exist and performs very well, it is difficult to implement on a very large scale, and therefore the custom electronics is needed. In addition, the analog delay line requirement makes it very difficult to incorporate CFD discriminators in ASIC designs.
Date:
July 14, 2011
Creator:
Breton, D.; /Orsay, LAL; Delagnes, E.; /DAPNIA, Saclay; Maalmi, J.; /Orsay, LAL et al.
System:
The UNT Digital Library
Influence of Silanization Treatment on Thermomechanical Properties of Multiwalled Carbon Nanotubes: Poly(methylmethacrylate) Nanocomposites
This article reports results for functionalized as well as unfunctionalized carbon nanotube polymer composites.
Date:
July 30, 2011
Creator:
Velasco-Santos, Carlos; Martinez-Hernandez, Ana Laura; Brostow, Witold, 1934- & Castaño, Victor M.
System:
The UNT Digital Library
R^4 Counterterm and E_{7(7)} Symmetry in Maximal Supergravity
The coefficient of a potential R{sup 4} counterterm in N = 8 supergravity has been shown previously to vanish in an explicit three-loop calculation. The R{sup 4} term respects N = 8 supersymmetry; hence this result poses the question of whether another symmetry could be responsible for the cancellation of the three-loop divergence. In this article we investigate possible restrictions from the coset symmetry E{sub 7(7)}/SU(8), using a double-soft scalar limit relation derived recently by Arkani-Hamed et al. In order to implement the relation, we make use of the fact that the R{sup 4} term occurs in the low-energy expansion of closed-string tree-level amplitudes. We find that the matrix elements of R{sup 4} that we investigated all obey the double-soft scalar limit relation, suggesting that E{sub 7(7)} is also respected by the R{sup 4} term.
Date:
July 6, 2011
Creator:
Broedel, Johannes; /Potsdam, Max Planck Inst. /Leibniz U., Hannover & Dixon, Lance J.
System:
The UNT Digital Library
Interfacing Chapel with traditional HPC programming languages
None
Date:
July 20, 2011
Creator:
Prantl, A.; Epperly, T.; Imam, S. & Sarkar, V.
System:
The UNT Digital Library
AGN Unification at z ~ 1: u - R Colors and Gradients in X-ray AGN Hosts
None
Date:
July 11, 2011
Creator:
Ammons, S. M.; Rosario, D.; Koo, D.; Dutton, A.; Melbourne, J.; Max, C. et al.
System:
The UNT Digital Library
IMPROVED HIGH FREQUENCY DISCRIMINATION: A NEW APPROACH TO CORRECT FOR REGIONAL SOURCE SCALING VARIATIONS
None
Date:
July 7, 2011
Creator:
Mayeda, K; Walter, W R; Gok, R M & Malagnini, L
System:
The UNT Digital Library
Global Transcriptome Response to Ionic Liquid by a Tropical Rain Forest Soil Bacterium, Enterobacter Lignolyticus scf1
None
Date:
July 25, 2011
Creator:
Khudyakov, J. I.; D'haeseleer, P.; Borglin, S. E.; DeAngelis, K. M.; Woo, H.; Lindquist, E. A. et al.
System:
The UNT Digital Library
Bayesian Treaty Monitoring: Preliminary Report
None
Date:
July 12, 2011
Creator:
Russell, S. J.; Myers, S. C.; Arora, N. S.; Moore, D. A. & Sudderth, E.
System:
The UNT Digital Library
AN EXPERIMENTAL STUDY OF THE EFFECT OF OPERATOR HANDS ON THE REACTIVITY OF A FAST METAL SYSTEM
None
Date:
July 22, 2011
Creator:
Percher, C & Heinrichs, D
System:
The UNT Digital Library
Ten-fold spectral resolution boosting using TEDI at the Mt. Palomar NIR Triplespec spectrograph
None
Date:
July 20, 2011
Creator:
Erskine, D. J.; Edelstein, J.; Muirhead, P.; Muterspaugh, M.; Covey, K.; Mondo, D. et al.
System:
The UNT Digital Library
Non-LTE Modeling for the National Ignition Facility (and Beyond)
None
Date:
July 11, 2011
Creator:
Scott, H. A.; Hammel, B. A. & Hansen, S. B.
System:
The UNT Digital Library
Avoiding hot-spots on two-level direct networks
None
Date:
July 26, 2011
Creator:
Bhatele, A; Jain, N; Gropp, W D & Kale, L V
System:
The UNT Digital Library
Effects of 3D Surface Topography on Regional and Teleseismic Signals from Underground Explosions
None
Date:
July 7, 2011
Creator:
Lay, T; Avants, M; Xie, X & Rodgers, A J
System:
The UNT Digital Library
Direct correlation of R-line luminescence with rod-like defect evolution in ion-implanted and annealed silicon
None
Date:
July 19, 2011
Creator:
Charnvanichborikarn, S.; Wong-Leung, J.; Jagadish, C. & Williams, J. S.
System:
The UNT Digital Library
Seismic Attenuation, Event Discrimination, Magnitude and Yield Estimation, and Capability Analysis
None
Date:
July 6, 2011
Creator:
Pasyanos, M E; Walter, W R; Matzel, E M; Gok, R; Dodge, D A; Ford, S R et al.
System:
The UNT Digital Library
International Cooperation of Seismology for Support to the CTBT
None
Date:
July 5, 2011
Creator:
Gok, R.; Nakanishi, K. K.; Pasyanos, M. E.; Rodgers, A. J.; Harris, D. B.; Vergino, E. et al.
System:
The UNT Digital Library
In vivo testing of a prototype system providing simultaneous white light and near infrared autofluorescence image acquisition for detection of bladder cancer
None
Date:
July 8, 2011
Creator:
Demos, S. G.; Jacobson, M. C. & White, R. D.
System:
The UNT Digital Library
Extending Regional Seismic Travel Time (RSTT) Tomography to New Regions
None
Date:
July 12, 2011
Creator:
Myers, S C; Begnaud, M L; Ballard, S; Phillips, W S & Pasyanos, M E
System:
The UNT Digital Library
Improving communication performance in dense linear algebra via topology aware collectives
None
Date:
July 26, 2011
Creator:
Solomonik, E; Bhatele, A & Demmel, J
System:
The UNT Digital Library
Computational Study of 3-D Hot-Spot Initiation in Shocked Insensitive High-Explosive
None
Date:
July 12, 2011
Creator:
Najjar, F.; Howard, W.; Fried, L.; Manaa, M.; Nichols, A., III & Levesque, G.
System:
The UNT Digital Library
Improving the Model Fidelity for the Mechanical Response in a Thermal Cookof of HMX
None
Date:
July 14, 2011
Creator:
Nichols, A. L.
System:
The UNT Digital Library