Browsing by Title

Now showing items 79975-79994 of 143321

    • Metastable Knots in Confined Semiflexible Chains 

      Dai, Liang; Renner, C. Benjamin; Doyle, Patrick S. (American Chemical Society (ACS), 2015-04)
      We study the size distribution of spontaneous knots on semiflexible chains confined in square cross-section channels using Monte Carlo simulations. The most probable knot size, i.e. the metastable knot size, is found to ...

    • Metastable legged-robot locomotion 

      Byl, Katie (Massachusetts Institute of Technology, 2008)
      A variety of impressive approaches to legged locomotion exist; however, the science of legged robotics is still far from demonstrating a solution which performs with a level of flexibility, reliability and careful foot ...

    • Metastable orientational order of colloidal discoids 

      Schultz, Benjamin A.; Glaser, Jens; Engel, Michael; Szakasits, Megan E.; Glotzer, Sharon C.; e.a. (Nature Publishing Group, 2015-10)
      The interplay between phase separation and kinetic arrest is important in supramolecular self-assembly, but their effects on emergent orientational order are not well understood when anisotropic building blocks are used. ...

    • Metastable Pluripotent States in NOD Mouse Derived ES Cells 

      Hanna, Jacob; Markoulaki, Styliani; Mitalipova, Maisam; Cassady, John P.; Staerk, Judith; e.a. (Elsevier, 2009-05)
      Embryonic stem (ES) cells are isolated from the inner cell mass (ICM) of blastocysts, whereas epiblast stem cells (EpiSCs) are derived from the post-implantation epiblast and display a restricted developmental potential. ...

    • Metastable states in the triangular-lattice Ising model studied by Monte Carlo simulations: Application to the spin-chain compound Ca[subscript 3]Co[subscript 2]O[subscript 6] 

      Soto, R.; Martinez, G.; Baibich, M. N.; Florez Uribe, Juan Manuel; Vargas, P. (American Physical Society, 2009-05)
      It is well known that the spin-chain compound Ca[subscript 3]Co[subscript 2]O[subscript 6] exhibits interesting plateaus in the magnetization as a function of the magnetic field at low temperatures. The origin of them is ...

    • Metastable Superconducting Qubit 

      Kerman, Andrew J. (American Physical Society, 2010-01)
      We propose a superconducting qubit design, based on a tunable rf SQUID and nanowire kinetic inductors, which has a dramatically reduced transverse electromagnetic coupling to its environment, so that its excited state ...

    • Metastable Tight Knots in Semiflexible Chains 

      Dai, Liang; Renner, Christopher Benjamin; Doyle, Patrick S (American Chemical Society (ACS), 2014-08)
      Knotted structures can spontaneously occur in polymers such as DNA and proteins, and the formation of knots affects biological functions, mechanical strength and rheological properties. In this work, we calculate the ...

    • Metastable Walking Machines 

      Byl, Katie; Tedrake, Russell Louis (Sage, 2009-06)
      Legged robots that operate in the real world are inherently subject to stochasticity in their dynamics and uncertainty about the terrain. Owing to limited energy budgets and limited control authority, these “disturbances” ...

    • A metastasis biomarker (MetaSite Breast™ Score) is associated with distant recurrence in hormone receptor-positive, HER2-negative early-stage breast cancer 

      Sparano, Joseph A.; Gray, Robert; Oktay, Maja H.; Entenberg, David; Rohan, Thomas; e.a. (Springer Nature, 2017-11)
      Metastasis is the primary cause of death in early-stage breast cancer. We evaluated the association between a metastasis biomarker, which we call "Tumor Microenviroment of Metastasis" (TMEM), and risk of recurrence. TMEM ...

    • Metastasis suppression: a role of the Dice(r) 

      Valastyan, Scott John; Weinberg, Robert A (Springer (Biomed Central Ltd.), 2010-11)
      Recent studies have implicated the microRNA biogenesis enzyme Dicer as a suppressor of breast carcinoma metastasis and elucidated upstream signaling pathways that control Dicer levels.

    • Metastasis: tumor cells becoming MENAcing 

      Gertler, Frank; Condeelis, John (Elsevier, 2010-11)
      During breast cancer metastasis cells emigrate from the primary tumor to the bloodstream, and this carries them to distant sites where they infiltrate and sometimes form metastases within target organs. These cells must ...

    • The Metastasizing Megaproject: Urban design and ‘monstrous moral hybrids’ in the American city [Book Chapter] 

      Ryan, Brent (Emerald Group Publishing Limited, 2013)
      This chapter examines megaproject design and planning in two “shrinking cities”- Philadelphia, PA and Detroit, MI- concludes that megaproject "metastasis", or repeated expansions into surrounding urban fabrics, is promoting ...

    • Metastatic Cells Will Take Any Help They Can Get 

      Hynes, Richard O (Elsevier, 2011-12)
      Two recent papers in Cancer Cell (Lu et al., this issue of Cancer Cell, and Kang et al.) illustrate means whereby acquisition of VCAM-1 by tumor cells can promote metastasis. First, monocyte/macrophages expressing α4 ...

    • Metastatic pituitary tumors: an institutional case series 

      Yearley, Alexander G.; Chalif, Eric J.; Gupta, Saksham; Chalif, Joshua I.; Bernstock, Joshua D.; e.a. (Springer US, 2023-07-31)
      Abstract Purpose Pituitary carcinomas are a rare entity that respond poorly to multimodal therapy. Patients follow a variable disease course that remains ill-defined. ...

    • Metasurface Matching Layers for Enhanced Electric Field Penetration Into the Human Body 

      Genovesi, Simone; Butterworth, Ian Richard; Cruz Serrallés, José E. (José Enrique); Daniel, Luca (Institute of Electrical and Electronics Engineers (IEEE), 2020-10)
      The use of electromagnetic fields applied to human tissues has proven to be beneficial in several applications, such as monitoring physiological parameters and delivering medical treatments. Often applications rely on ...

    • Metasurface-based multi-harmonic free-electron light source 

      Rosolen, Gilles; Wong, Liang Jie; Rivera, Nicholas; Maes, Bjorn; Soljačić, Marin; e.a. (Springer Nature, 2018)
      © 2018, The Author(s). Metasurfaces are subwavelength spatial variations in geometry and material where the structures are of negligible thickness compared to the wavelength of light and are optimized for far-field ...

    • Metatheorems about convertibility in typed lambda calculi : applications to CPS transform and "free theorems" 

      Kuc̆an, Jakov (Massachusetts Institute of Technology, 1997)

    • Metatheorems for dynamic weighted matching 

      Williams, Virginia Vassilevska (2017)
      We consider the maximum weight matching (MWM) problem in dynamic graphs. We provide two reductions. The first reduces the dynamic MWM problem on m-edge, n-node graphs with weights bounded by N to the problem with weights ...

    • Metathesis by Molybdenum and Tungsten Catalysts 

      Schrock, Richard Royce (Swiss Chemical Society, 2015-08)
      Carbon–carbon double bonds are an integral part of the chemical industry and are widely found in natural products, from the small and simple (ethylene) to the large and complex. The ability to manipulate carbon–carbon ...

    • Metatranscriptome analyses indicate resource partitioning between diatoms in the field 

      Alexander, Harriet; Jenkins, Bethany D.; Rynearson, Tatiana A.; Dyhrman, Sonya T. (National Academy of Sciences (U.S.), 2015-04)
      Diverse communities of marine phytoplankton carry out half of global primary production. The vast diversity of the phytoplankton has long perplexed ecologists because these organisms coexist in an isotropic environment ...