Now showing items 884-903 of 2277

    • How to train your microbe: methods for dynamically characterizing gene networks 

      Castillo-Hair, Sebastian M.; Igoshin, Oleg A.; Tabor, Jeffrey J. (2015)
      Gene networks regulate biological processes dynamically. However, researchers have largely relied upon static perturbations, such as growth media variations and gene knockouts, to elucidate gene network structure and ...
    • HSulf-1 deficiency dictates a metabolic reprograming of glycolysis and TCA cycle in ovarian cancer 

      Mondal, Susmita; Roy, Debarshi; Camacho-Pereira, Juliana; Khurana, Ashwani; Chini, Eduardo; Yang, Lifeng; Baddour, Joelle; Stilles, Katherine; Padmabandu, Seth; Leung, Sam; Kalloger, Steve; Gilks, Blake; Lowe, Val; Dierks, Thomas; Hammond, Edward; Dredge, Keith; Nagrath, Deepak; Shridhar, Viji (2015)
      Warburg effect has emerged as a potential hallmark of many cancers. However, the molecular mechanisms that led to this metabolic state of aerobic glycolysis, particularly in ovarian cancer (OVCA) have not been completely ...
    • Human Omental-Derived Adipose Stem Cells Increase Ovarian Cancer Proliferation, Migration, and Chemoresistance 

      Nowicka, Aleksandra; Marini, Frank C.; Solley, Travis N.; Elizondo, Paula B.; Zhang, Yan; Sharp, Hadley J.; Broaddus, Russell; Kolonin, Mikhail; Mok, Samuel C.; Thompson, Melissa S.; Woodward, Wendy A.; Lu, Karen; Salimian, Bahar; Nagrath, Deepak; Klopp, Ann H. (2013)
      Objectives: Adipose tissue contains a population of multipotent adipose stem cells (ASCs) that form tumor stroma and can promote tumor progression. Given the high rate of ovarian cancer metastasis to the omental adipose, ...
    • Hyaluronan turnover and hypoxic brown adipocytic differentiation are co-localized with ossification in calcified human aortic valves 

      Stephens, Elizabeth H.; Saltarrelli, Jerome G. Jr.; Balaoing, Liezl R.; Baggett, L. Scott; Nandi, Indrajit; Anderson, Kristin M.; Morrisett, Joel D.; Reardon, Michael J.; Simpson, Melanie A.; Weigel, Paul H.; Olmsted-Davis, Elizabeth A.; Davis, Alan R.; Grande-Allen, K. Jane (2012)
      The calcification process in aortic stenosis has garnered considerable interest but only limited investigation into selected signaling pathways. This study investigated mechanisms related to hypoxia, hyaluronan homeostasis, ...
    • Hybrid 2D Nanomaterials as Dual-mode Contrast Agents in Cellular Imaging 

      Narayanan, Tharangattu N.; Gupta, Bipin K.; Vithayathil, Sajna A.; Aburto, Rebeca R.; Mani, Sendurai A.; Taha-Tijerina, Jaime; Xie, Bin; Kaipparettu, Benny A.; Torti, Suzy V.; Ajayan, Pulickel M. (2012)
    • Hybrid Linear / Bilinear Time-Scale Analysis 

      Pasquier, Martin; Goncalves, Paulo; Baraniuk, Richard G. (1999-01-01)
      We introduce a new method for the time-scale analysis of non-stationary signals. Our work leverages the success of the "time-frequency distribution series / cross-term deleted representations" into the time-scale domain ...
    • Hybrid Linear-Iterative Detection Algorithms for MIMO CDMA 

      Muharemovic, Tarik; Onggosanusi, Eko; Dabak, Anand; Aazhang, Behnaam (2002-05-20)
      We assume a CDMA downlink multiuser scenario, where the base station is equipped with multiple transmit antennas, and each user has multiple receive antennas. For this setup we propose a new, computationally effective MIMO ...
    • Hybrid Linear/Bilinear Time-Scale Analysis 

      Pasquier, Martin; Goncalves, Paulo; Baraniuk, Richard G. (1996-06-01)
      We introduce a new method for the time-scale analysis of nonstationary signals. Our work leverages the success of the â time-frequency distribution series/cross-term deleted representationsâ into the time-scale domain ...
    • Hybrid Linear/Quadratic Time-Frequency Attributes 

      Baraniuk, Richard G.; Coates, Mark J.; Steeghs, Philippe (2000-06-01)
      We present an efficient method for robustly calculating time-frequency attributes of a signal, including instantaneous mean frequency, bandwidth, and kurtosis. Most current approaches involve a costly intermediate step of ...
    • Hybrid Linear/Quadratic Time-Frequency Attributes 

      Baraniuk, Richard G.; Coates, Mark J.; Steeghs, Philippe (2001-04-01)
      We present an efficient method for robustly calculating time-frequency attributes of a signal, including instantaneous mean frequency, bandwidth, kurtosis, and other moments. Most current attribute estimation techniques ...
    • Hybrid supercapacitor-battery materials for fast electrochemical charge storage 

      Vlad, A.; Singh, N.; Rolland, J.; Melinte, S.; Ajayan, P.M.; Gohy, J.-F. (2014)
      High energy and high power electrochemical energy storage devices rely on different fundamental working principles - bulk vs. surface ion diffusion and electron conduction. Meeting both characteristics within a single or ...
    • Hydrogel-Based 3D Model of Patient-Derived Prostate Xenograft Tumors Suitable for Drug Screening 

      Fong, Eliza L.S.; Martinez, Mariane; Yang, Jun; Mikos, Antonios G.; Navone, Nora M.; Harrington, Daniel A.; Farach-Carson, Mary C. (2014)
      The lack of effective therapies for bone metastatic prostate cancer (PCa) underscores the need for accurate models of the disease to enable the discovery of new therapeutic targets and to test drug sensitivities of individual ...
    • Hydrogen Diffusion and Stabilization in Single-Crystal VO2 Micro/Nanobeams by Direct Atomic Hydrogenation 

      Lin, Jian; Ji, Heng; Swift, Michael W.; Hardy, Will J.; Peng, Zhiwei; Fan, Xiujun; Nevidomskyy, Andriy H.; Tour, James M.; Natelson, Douglas (2014)
      We report measurements of the diffusion of atomic hydrogen in single crystalline VO2 micro/nanobeams by direct exposure to atomic hydrogen, without catalyst. The atomic hydrogen is generated by a hot filament, and the ...
    • Hydrophobic and hydrophilic interactions in aqueous mixtures of alcohols at a hydrophobic surface 

      Ballal, Deepti; Chapman, Walter G. (2013)
      Aqueous solutions of alcohols are interesting because of their anomalous behavior that is believed to be due to the molecular structuring of water and alcohol around each other in solution. The interfacial structuring and ...
    • Identification by laser desorption ionization mass spectroscopy of large fullerenes formed during the growth of single-walled carbon nanotubes in the HiPco process 

      Brinson, Bruce E. (2004)
      Iron catalyzed gas-phased disproportionation of carbon monoxide under high pressure is known to produce carbon Single Walled Nano-Tubes (SWNT). Non-tubular carbon by products and iron encapsulated-graphitic shelled ...
    • An Identification Scheme for the Determination of Systemic Arterial Load Parameters 

      Ling, R.Y.S.; Clark, Jr., J.W.; Srinivasan, R.; Cole, J.S.; Pruett, R.C. (1975-04-20)
      An identification scheme is developed for the determination of several parameters of a modified "Windkessel" model of the systemic arterial system for an individual patient undergoing cardiac catheterization. The scheme ...
    • Image Compression using an Efficient Edge Cartoon + Texture Model 

      Wakin, Michael; Romberg, Justin; Choi, Hyeokho; Baraniuk, Richard G. (2002-04-01)
      Wavelet-based image coders optimally represent smooth regions and isolated point singularities. However, wavelet coders are less adept at representing perceptually important edge singularities, and coding performance ...
    • Image compression using multiscale geometric edge models 

      Wakin, Michael Bruce (2002)
      Edges are of particular interest for image compression, as they communicate important information, contribute large amounts of high-frequency energy, and can generally be described with few parameters. Many of today's most ...
    • Image Compression using Multiscale Geometric Edge Models 

      Wakin, Michael (2002-05-20)
      Edges are of particular interest for image compression, as they communicate important information, contribute large amounts of high-frequency energy, and can generally be described with few parameters. Many of today's most ...
    • Image Data Compression 

      Wei, Dong (1995-05-01)
      Wavelet-based multi-resolution representation has become a cutting-edge technology in the area of image data compression. Though the discrete wavelet transform is closely related to the perfect-reconstruction octave-band ...