Now showing items 1-20 of 4567

    • 1,4-Dioxane-degrading consortia can be enriched from uncontaminated soils: prevalence of Mycobacterium and soluble di-iron monooxygenase genes 

      He, Ya; Mathieu, Jacques; da Silva, Marcio L.B.; Li, Mengyan; Alvarez, Pedro J.J. (2017)
      Two bacterial consortia were enriched from uncontaminated soil by virtue of their ability to grow on 1,4-dioxane (dioxane) as a sole carbon and energy source. Their specific dioxane degradation rates at 30°C, pH = 7 (i.e. 5.7 to 7.1 g-dioxane per g-protein per day) were comparable to those of two dioxane-metabolizing archetypes: Pseudonocardia ...
    • 1-bit Phase Shifters for Large-Antenna Full-Duplex mmWave Communications 

      da Silva, José Mairton Barros Jr.; Sabharwal, Ashutosh; Fodor, Gábor; Fischione, Carlo (2020)
      Millimeter-wave using large-antenna arrays is a key technological component for the future cellular systems, where it is expected that hybrid beamforming along with quantized phase shifters will be used due to their implementation and cost efficiency. In this paper, we investigate the efficacy of full-duplex mmWave communication with hybrid beamforming ...
    • 1D to 3D Crossover of a Spin-Imbalanced Fermi Gas 

      Revelle, Melissa C.; Fry, Jacob A.; Olsen, Ben A.; Hulet, Randall G.; Rice Center for Quantum Materials (2016)
      We have characterized the one-dimensional (1D) to three-dimensional (3D) crossover of a two-component spin-imbalanced Fermi gas of 6Li atoms in a 2D optical lattice by varying the lattice tunneling and the interactions. The gas phase separates, and we detect the phase boundaries using in situ imaging of the inhomogeneous density profiles. The locations ...
    • 222Rn emanation measurements for the XENON1T experiment 

      XENON Collaboration (2021)
      The selection of low-radioactive construction materials is of utmost importance for the success of low-energy rare event search experiments. Besides radioactive contaminants in the bulk, the emanation of radioactive radon atoms from material surfaces attains increasing relevance in the effort to further reduce the background of such experiments. In ...
    • 25th Anniversary Article: Ordered Polymer Structures for the Engineering of Photons and Phonons 

      Lee, Jae-Hwang; Koh, Cheong Yang; Singer, Jonathan P.; Jeon, Seog-Jin; Maldovan, Martin; (2014)
      The engineering of optical and acoustic material functionalities via construction of ordered local and global architectures on various length scales commensurate with and well below the characteristic length scales of photons and phonons in the material is an indispensable and powerful means to develop novel materials. In the current mature status ...
    • 2D material integrated macroporous electrodes for Li-ion batteries 

      Gullapalli, Hemtej; Kalaga, Kaushik; Vinod, Soumya; Rodrigues, Marco-Tulio F.; George, Antony; (2017)
      Three-dimensionally structured architectures are known to improve the performance of electrodes used in Li ion battery systems. In addition, integration of select 2D materials into 3D structures, for enhancing both electrical conductivity and electrochemical activity, will prove advantageous. Here a scalable one-step chemical vapor deposition technique ...
    • The 2nd DBCLS BioHackathon: interoperable bioinformatics Web services for integrated applications 

      Katayama, Toshiaki; Wilkinson, Mark D.; Vos, Rutger; Kawashima, Takeshi; Kawashima, Shuichi; (2011)
      Background: The interaction between biological researchers and the bioinformatics tools they use is still hampered by incomplete interoperability between such tools. To ensure interoperability initiatives are effectively deployed, end-user applications need to be aware of, and support, best practices and standards. Here, we report on an initiative ...
    • 3-Dimensional spatially organized PEG-based hydrogels for an aortic valve co-culture model 

      Puperi, Daniel S.; Balaoing, Liezl R.; O'Connell, Ronan W.; West, Jennifer L.; Grande-Allen, K. Jane (2015)
      Physiologically relevant inᅠvitro models are needed to study disease progression and to develop and screen potential therapeutic interventions for disease. Heart valve disease, in particular, has no early intervention or non-invasive treatment because there is a lack of understanding the cellular mechanisms which lead to disease. Here, we establish ...
    • 3D bioprinting: improving in vitro models of metastasis with heterogeneous tumor microenvironments 

      Albritton, Jacob L.; Miller, Jordan S. (2017)
      Even with many advances in treatment over the past decades, cancer still remains a leading cause of death worldwide. Despite the recognized relationship between metastasis and increased mortality rate, surprisingly little is known about the exact mechanism of metastatic progression. Currently available in vitro models cannot replicate the ...
    • A 3D inᅠvitro model of patient-derived prostate cancer xenograft for controlled interrogation of inᅠvivo tumor-stromal interactions 

      Fong, Eliza L.S.; Wan, Xinhai; Yang, Jun; Morgado, Micaela; Mikos, Antonios G.; (2016)
      Patient-derived xenograft (PDX) models better represent human cancer than traditional cell lines. However, the complex in vivo environment makes it challenging to employ PDX models to investigate tumor-stromal interactions, such as those that mediate prostate cancer (PCa) bone metastasis. Thus, we engineered a defined three-dimensional (3D) hydrogel ...
    • A 3D inᅠvitro model of patient-derived prostate cancer xenograft for controlled interrogation of inᅠvivo tumor-stromal interactions 

      Fong, Eliza L.S.; Wan, Xinhai; Yang, Jun; Morgado, Micaela; Mikos, Antonios G.; (2016)
      Patient-derived xenograft (PDX) models better represent human cancer than traditional cell lines. However, the complex in vivo environment makes it challenging to employ PDX models to investigate tumor-stromal interactions, such as those that mediate prostate cancer (PCa) bone metastasis. Thus, we engineered a defined three-dimensional (3D) hydrogel ...
    • 3D Macroporous Solids from Chemically Cross-linked Carbon Nanotubes 

      (2014)
      Suzuki reaction for covalently interconnected 3D carbon nanotube (CNT) architectures is reported. The synthesis of 3D macroscopic solids made of CNTs covalently connected via Suzuki cross-coupling, a well-known carbon-carbon covalent bond forming reaction in organic chemistry, is scalable. The resulting solid has a highly porous, interconnected ...
    • 3D printed fiber optic faceplates by custom controlled fused deposition modeling 

      Wang, Ye; Gawedzinski, John; Pawlowski, Michal E.; Tkaczyk, Tomasz S. (2018)
      A 3D printing technique for manufacturing air-clad coherent fiber optic faceplates is presented. The custom G-code programming is implemented on a fused deposition modeling (FDM) desktop printer to additively draw optical fibers using high-transparency thermoplastic filaments. The 3D printed faceplate consists of 20000 fibers and achieves spatial ...
    • 3D tissue-engineered model of Ewing's sarcoma 

      (2014)
      Despite longstanding reliance upon monolayer culture for studying cancer cells, and numerous advantages from both a practical and experimental standpoint, a growing body of evidence suggests that more complex three-dimensional (3D) models are necessary to properly mimic many of the critical hallmarks associated with the oncogenesis, maintenance and ...
    • 3D touchless multiorder reflection structural color sensing display 

      Kang, Han Sol; Han, Sang Won; Park, Chanho; Lee, Seung Won; Eoh, Hongkyu; (2020)
      The development of a lightweight, low-power, user-interactive three-dimensional (3D) touchless display in which a human stimulus can be detected and simultaneously visualized in noncontact mode is of great interest. Here, we present a user-interactive 3D touchless sensing display based on multiorder reflection structural colors (SCs) of a thin, ...
    • 3D Ultrastructure of the Cochlear Outer Hair Cell Lateral Wall Revealed By Electron Tomography 

      Triffo, William Jeffrey; Palsdottir, Hildur; Song, Junha; Morgan, David Gene; McDonald, Kent L.; (2019)
      Outer Hair Cells (OHCs) in the mammalian cochlea display a unique type of voltage-induced mechanical movement termed electromotility, which amplifies auditory signals and contributes to the sensitivity and frequency selectivity of mammalian hearing. Electromotility occurs in the OHC lateral wall, but it is not fully understood how the supramolecular ...
    • 4 Ezra and 2 Baruch: Literary Composition and Oral Performance in First-Century Apocalyptic Literature 

      Henze, Matthias (2012)
      Students of 4 Ezra and 2 Baruch have long noticed numerous thematic, generic, and linguistic parallels that exist between them. Both texts were written in the late first or possibly the early second century C.E., most likely in the land of Israel. The composition of both works was triggered by the Roman destruction of Jerusalem in the year 70 C.E., ...
    • A 2-D simulation study on CO2ᅠsoluble surfactant for foam enhanced oil recovery 

      Zeng, Yongchao; Farajzadeh, Rouhi; Biswal, Sibani L.; Hirasaki, George J. (2019)
      This paper probes the transport of CO2ᅠsoluble surfactant for foaming in porous media. We numerically investigate the effect of surfactant partitioning between the aqueous phase and the gaseous phase on foam transport for subsurface applications when the surfactant is injected in the CO2ᅠphase. A 2-D reservoir simulation is developed to quantify the ...
    • A Ball and Beam Module for a Haptic Paddle Education Platform 

      Rose, Chad G.; Bucki, Nathan; O’Malley, Marcia K. (2017)
      Single degree of freedom force-feedback mechatronic devices, often called haptic paddles, are used in university curriculum as well as massive open online courses (MOOCs). While devices differ based on the goals of a given course, broadly speaking they provide hands-on learning for students studying mechatronics and dynamics. We introduce the third ...
    • A Bayesian Integrative Model for Genetical Genomics with Spatially Informed Variable Selection 

      Cassese, Alberto; Guindani, Michele; Vannucci, Marina (2014)
      We consider a Bayesian hierarchical model for the integration of gene expression levels with comparative genomic hybridization (CGH) array measurements collected on the same subjects. The approach defines a measurement error model that relates the gene expression levels to latent copy number states. In turn, the latent states are related to the ...