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Creator | Title | Description | Subject | Date |
| 326 |
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Pascucci, Valerio | Topology verification for isosurface extraction | The broad goals of verifiable visualization rely on correct algorithmic implementations. We extend a framework for verification of isosurfacing implementations to check topological properties. Specifically, we use stratified Morse theory and digital topology to design algorithms which verify topolog... | | 2012-01-01 |
| 327 |
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Pascucci, Valerio | Topological analysis and visualization of cyclical behavior in memory reference traces | We demonstrate the application of topological analysis techniques to the rather unexpected domain of software visualization. We collect a memory reference trace from a running program, recasting the linear flow of trace records as a high-dimensional point cloud in a metric space. We use topological ... | | 2012-01-01 |
| 328 |
 |
Gopalakrishnan, Ganesh | Towards providing low-overhead data race detection for large OpenMP applications | Neither static nor dynamic data race detection methods, by themselves, have proven to be sufficient for large HPC applications, as they often result in high runtime overheads and/or low race-checking accuracy. While combined static and dynamic approaches can fare better, creating such combinations, ... | | 2014-01-01 |
| 329 |
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Rieth, Loren W | TiO2-WO3 composite nanotubes from co-sputtered thin films on si substrate for enhanced photoelectrochemical water splitting | Electrochemical anodization of a Ti-W nano-composite thin films deposited on a Si substrate by simultaneous magnetron sputtering of Ti and W resulted in the formation of TiO2-WO3 nanotubular arrays. A change in the morphology of TiO2-WO3 composite nanotubes with varying percentage of W in Ti-W compo... | | 2014-01-01 |
| 330 |
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Gerig, Guido | Towards analysis of growth trajectory through multi-modal longitudinal MR imaging | The human brain undergoes significant changes in the first few years after birth, but knowledge about this critical period of development is quite limited. Previous neuroimaging studies have been mostly focused on morphometric measures such as volume and shape, although tissue property measures rela... | | 2010-01-01 |
| 331 |
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Gerig, Guido | Topology preserving atlas construction from shape data without correspondence using sparse parameters | Statistical analysis of shapes, performed by constructing an atlas composed of an average model of shapes within a population and associated deformation maps, is a fundamental aspect of medical imaging studies. Usual methods for constructing a shape atlas require point correspondences across subject... | | 2012-01-01 |
| 332 |
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Liu, Feng | Topological and electronic transitions in a Sb(111) nanofilm: the interplay between quantum confinement and surface effect | When the dimension of a solid structure is reduced, there will be two emerging effects, quantum confinement and surface effect, which dominate at nanoscale. Based on first-principles calculations, we demonstrate that due to an intriguing interplay between these two dominating effects, the topologica... | | 2012-01-01 |
| 333 |
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Wen, Ming | Trans-local ties, local ties and psychological well-being among rural-to-urban migrants in Shanghai | During the past three decades, an estimated 200 million rural residents have moved to urban centers in China. They are "sojourners" in the cities and maintain close ties with their home communities, which we term trans-local ties. This paper examines the relationship between migrants' social ties an... | | 2012-01-01 |
| 334 |
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Hansen, Charles D. | Transfer function design based on user selected samples for intuitive multivariate volume exploration | Multivariate volumetric datasets are important to both science and medicine. We propose a transfer function (TF) design approach based on user selected samples in the spatial domain to make multivariate volumetric data visualization more accessible for domain users. Specifically, the user starts the... | | 2013-01-01 |
| 335 |
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Zick, Cathleen D. | Trends in Americans food-related time use: 1975-2006 | Objective: To describe how the time spent in food-related activities by Americans has changed over the past 30 years. Design: Data from four national time diary surveys, spanning 1975-2006, are used to construct estimates of trends in American adults' time spent in food-related activities. Multivari... | | 2010-01-01 |
| 336 |
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Jensen, Randy Lynn | Treatment-related brain tumor imaging changes: so-called "pseudoprogression" vs. tumor progression: Review and future research opportunities | Background: Glioblastoma multiforme (GBM) has a dismal prognosis despite aggressive therapy. Initial diagnosis and measurement of response to treatment is usually determined by measurement of gadolinium-enhanced tumor volume with magnetic resonance imaging (MRI). Unfortunately, many GBM treatment mo... | | 2013-01-01 |
| 337 |
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Couldwell, William T. | Transnasal excerebration surgery in ancient Egypt: Historical vignette | Ancient Egyptians were pioneers in many fields, including medicine and surgery. Our modern knowledge of anatomy, pathology, and surgical techniques stems from discoveries and observations made by Egyptian physicians and embalmers. In the realm of neurosurgery, ancient Egyptians were the first to elu... | | 2012-01-01 |
| 338 |
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Golden, Kenneth M. | Transition in the fractal geometry of Arctic melt ponds | During the Arctic melt season, the sea ice surface undergoes a remarkable transformation from vast expanses of snow covered ice to complex mosaics of ice and melt ponds. Sea ice albedo, a key parameter in climate modeling, is determined by the complex evolution of melt pond configurations. In fact, ... | | 2012-01-01 |
| 339 |
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Venkatasubramanian, Suresh | Track estimation using link line crossing information in wireless networks | Device-free or non-cooperative localization uses the changes in signal strength measured on links in a wireless network to estimate a person's position in the network area. Existing methods provide an instantaneous coordinate estimate via radio tomographic imaging or location fingerprinting. In this... | | 2013-01-01 |
| 340 |
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Khan, Faisal Habib | Transfer function mapping for a grid connected PV system using reverse synthesis technique | Mathematical modeling of power electronic converters is a historical problem. Numerous efforts have been documented in literature to model different converter topologies and their control schemes since the 1940s. Traditional modeling approaches avoid transfer function derivation due to high degree o... | | 2013-01-01 |
| 341 |
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Couldwell, William T. | Transtemporal approach to the removal of a lateral pontine tumor | This video demonstrates a very useful trajectory to a pontine lesion. A 68-year-old man presented with tongue numbness and weakness. The approach used was a transtemporal presigmoid retrolabyrinthine approach to enable an orthogonal trajectory to the lateral pons. Following the transtemporal opening... | | 2014-01-01 |
| 342 |
 |
Gerig, Guido | Twin-singleton differences in neonatal brain structure | Twin studies suggest that global and regional brain volumes are highly heritable. However, estimates of heritability vary across development. Given that all twin studies are open to the potential criticism of non-generalizability due to differences in intrauterine environment between twins and singl... | | 2011-01-01 |
| 343 |
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Thalos, Mariam G. | Truth deserves to be believed | Science seems generally to aim at truth. And governmental support of science is often premised on the instrumental value of truth in service of advancing our practical objectives, both as individuals and as communities, large and small. While there is some political expediency to this view, it is no... | | 2013-01-01 |
| 344 |
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Regehr, John | Two case studies in predictable application scheduling using Rialto/NT | This paper analyzes the results of two case studies in applying the Rialto/NT scheduler to real Windows 2000 applications. The first study is of a soft modem-a modem whose signal processing work is performed on the host CPU, rather than on a dedicated signal processing chip. The second is of an audi... | | 2001-01-01 |
| 345 |
 |
Bohs, Lynn A. | Two new species from the brevantherum clade of solanum (solanaceae) from eastern Brazil | Two new species of Solanum (Solanaceae) from eastern Brazil are described. Solanum anisocladum Giacomin & Stehmann is similar to S. megalochiton Mart., but differs by the indument of the adaxial leaf surface, which is composed of long porrect-stellate and unbranched trichomes. It also has a more rob... | | 2013-01-01 |
| 346 |
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Gerig, Guido | Tumor-induced structural radiometric asymmetry in brain images | This paper presents a general framework for analyzing structural and radiometric asymmetry in brain images. In a healthy brain, the left and right hemispheres are largely symmetric across the mid-sagittal plane. Brain tumors may belong to one or both of the following categories: mass-effect, in whic... | | 2001-01-01 |
| 347 |
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Liu, Feng | Tuning nucleation density of metal island with charge doping of graphene substrate | We have demonstrated that the island nucleation in the initial stage of epitaxial thin film growth can be tuned by substrate surface charge doping. This charge effect was investigated using spin density functional theory calculation in Fe-deposition on graphene substrate as an example. It was found ... | | 2014-01-01 |
| 348 |
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Simpson, Jamesina J. | Two-dimensional FDTD model of antipodal ELF propagation and schumann resonance of the earth | This letter reports the initial application of the finitedifference time-domain (FDTD) method to model extremely lowfrequency (ELF) propagation around the entire Earth. Periodic boundary conditions are used in conjunction with a variable-cell two-dimensional TM FDTD grid, which wraps around the comp... | | 2002-01-01 |
| 349 |
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Jorgensen, Erik | UNC-41/stonin functions with AP2 to recycle synaptic vesicles in Caenorhabditis elegans | The recycling of synaptic vesicles requires the recovery of vesicle proteins and membrane. Members of the stonin protein family (Drosophila Stoned B, mammalian stonin 2) have been shown to link the synaptic vesicle protein synaptotagmin to the endocytic machinery. Here we characterize the unc-41 gen... | | 2012-01-01 |
| 350 |
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Gerig, Guido | UNC-Utah NA-MIC framework for DTI fiber tract analysis | Diffusion tensor imaging has become an important modality in field of neuroimaging to capture changes in micro-organization and to assess white matter integrity or development While there exists a number of tractography toolsets, these usually lack tools for preprocessing or to analyze diffusion pro... | | 2014-01-01 |
