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Browsing MIT Open Access Articles by Title

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  • Antimicrobial and Efflux Pump Inhibitory Activity of Caffeoylquinic Acids from Artemisia absinthium against Gram-Positive Pathogenic Bacteria 
    Fiamegos, Yiannis C.; Kastritis, Panagiotis L.; Exarchou, Vassiliki; Han, Haley; Bonvin, Alexandre M. J. J.; Vervoort, Jacques; Lewis, Kim; Hamblin, Michael R.; Tegos, George P. (Public Library of Science, 2011-04)
    Background: Traditional antibiotics are increasingly suffering from the emergence of multidrug resistance amongst pathogenic bacteria leading to a range of novel approaches to control microbial infections being investigated ...
  • Antimicrobial Peptide Delivery from Degradable Polymer Thin Films 
    Shukla, A.; Stephanopoulos, Gregory; Hammond, Paula T. (Institute of Electrical and Electronics Engineers, 2009-05)
    The overuse of antibiotics has led to a rise in antibiotic resistance of common hospital dwelling bacteria such as Staphylococcus aureus. Novel broad-spectrum antimicrobials that operate without further contributing to a ...
  • Antimony-Doped Tin(II) Sulfide Thin Films 
    Chakraborty, Rupak; Buonassisi, Tonio; Sinsermsuksakul, Prasert; Kim, Sang Bok; Heald, Steven M.; Gordon, Roy G. (American Chemical Society (ACS), 2012-11)
    Thin-film solar cells made from earth-abundant, inexpensive, and nontoxic materials are needed to replace the current technologies whose widespread use is limited by their use of scarce, costly, and toxic elements. Tin ...
  • An Antinomy about Anaphora 
    Almotahari, Mahrad (MIT Press, 2011-07)
    Standard theories of so-called donkey anaphora (Kamp 1981, Heim 1982, Groenendijk and Stokhof 1991) predict that sentence (1) is truth conditionally equivalent to (2). (1) Every farmer who owns a donkey beats it. (2) ...
  • Antisense RNA polymerase II divergent transcripts are P-TEFb dependent and substrates for the RNA exosome 
    Flynn, Ryan A.; Almada, Albert Ernesto; Zamudio, Jesse Ray; Sharp, Phillip A. (National Academy of Sciences (U.S.), 2011-06)
    Divergent transcription occurs at the majority of RNA polymerase II (RNAPII) promoters in mouse embryonic stem cells (mESCs), and this activity correlates with CpG islands. Here we report the characterization of upstream ...
  • Anti-windup Compensation for Nonlinear Systems via Gradient Projection: Application to Adaptive Control 
    Teo, Chun Sang; How, Jonathan P. (Institute of Electrical and Electronics Engineers, 2009-12)
    Control saturation is an important limitation in practical control systems and it is well known that performance degradation or instability may result if this limitation is not effectively addressed. Using ideas from ...
  • Any Monotone Boolean Function Can Be Realized by Interlocked Polygons 
    Demaine, Erik D.; Demaine, Martin L.; Uehara, Ryuhei (University of Manitoba, 2010)
    We show how to construct interlocked collections of simple polygons in the plane that fall apart upon removing certain combinations of pieces. Precisely, interior-disjoint simple planar polygons are interlocked if ...
  • Any Monotone Function Is Realized by Interlocked Polygons 
    Demaine, Erik D.; Demaine, Martin L.; Uehara, Ryuhei (MDPI AG, 2012-03)
    Suppose there is a collection of n simple polygons in the plane, none of which overlap each other. The polygons are interlocked if no subset can be separated arbitrarily far from the rest. It is natural to ask the ...
  • Anyon Condensation and Continuous Topological Phase Transitions in Non-Abelian Fractional Quantum Hall States 
    Barkeshli, Maissam; Wen, Xiao-Gang (American Physical Society, 2010-11)
    We find a series of possible continuous quantum phase transitions between fractional quantum Hall states at the same filling fraction in two-component quantum Hall systems. These can be driven by tuning the interlayer ...
  • Anyon Condensation and Continuous Topological Phase Transitions in Non-Abelian Fractional Quantum Hall States 
    Barkeshli, Maissam; Wen, Xiao-Gang (American Physical Society, 2010-11)
    We find a series of possible continuous quantum phase transitions between fractional quantum Hall states at the same filling fraction in two-component quantum Hall systems. These can be driven by tuning the interlayer ...
  • Anytime computation of time-optimal off-road vehicle maneuvers using the RRT* 
    Jeon, Jeong hwan; Karaman, Sertac; Frazzoli, Emilio (Institute of Electrical and Electronics Engineers (IEEE), 2011-12)
    Incremental sampling-based motion planning algorithms such as the Rapidly-exploring Random Trees (RRTs) have been successful in efficiently solving computationally challenging motion planning problems involving complex ...
  • Anytime Motion Planning using the RRT* 
    Karaman, Sertac; Walter, Matthew R.; Perez, Alejandro; Frazzoli, Emilio; Teller, Seth (Institute of Electrical and Electronics Engineers, 2011-05)
    The Rapidly-exploring Random Tree (RRT) algorithm, based on incremental sampling, efficiently computes motion plans. Although the RRT algorithm quickly produces candidate feasible solutions, it tends to converge to a ...
  • Apical domain polarization localizes actin–myosin activity to drive ratchet-like apical constriction 
    Mason, Frank M.; Martin, Adam C.; Tworoger, Michael B. (Nature Publishing Group, 2013-07)
    Apical constriction promotes epithelia folding, which changes tissue architecture. During Drosophila gastrulation, mesoderm cells exhibit repeated contractile pulses that are stabilized such that cells apically constrict ...
  • The Apollo Number: space suits, self-support, and the walk-run 
    McGee, Jeremy; Carr, Christopher E. (Public Library of Science, 2009-08)
    Background: How space suits affect the preferred walk-run transition is an open question with relevance to human biomechanics and planetary extravehicular activity. Walking and running energetics differ; in reduced gravity ...
  • The Apollo Number: Space Suits, Self-Support, and the Walk-Run Transition 
    Carr, Christopher E.; McGee, Jeremy (2009-08)
    Background: How space suits affect the preferred walk-run transition is an open question with relevance to human biomechanics and planetary extravehicular activity. Walking and running energetics differ; in reduced gravity ...
  • Appearance-based object reacquisition for mobile manipulation 
    Walter, Matthew R.; Friedman, Yuli; Antone, Matthew; Teller, Seth (Institute of Electrical and Electronics Engineers / IEEE Computer Society, 2010-06)
    This paper describes an algorithm enabling a human supervisor to convey task-level information to a robot by using stylus gestures to circle one or more objects within the field of view of a robot-mounted camera. These ...
  • Appliance remanufacturing and life cycle energy and economic savings 
    Boustani, Avid; Sahni, Sahil; Graves, Stephen C.; Gutowski, Timothy G. (Institute of Electrical and Electronics Engineers, 2010-05)
    In this paper we evaluate the energy and economic consequences of appliance remanufacturing relative to purchasing new. The appliances presented in this report constitute major residential appliances: refrigerator, dishwasher, ...
  • Application and comparison of Kalman filters for coastal ocean problems: An experiment with FVCOM 
    Chen, Changsheng; Malanotte-Rizzoli, Paola; Wei, Jun; Beardsley, Robert C.; Lai, Zhigang; Xue, Pengfei; Lyu, Sangjun; Xu, Qichun; Qi, Jianhua; Cowles, Geoffrey W. (American Geophysical Union, 2009-05)
    Twin experiments were made to compare the reduced rank Kalman filter (RRKF), ensemble Kalman filter (EnKF), and ensemble square-root Kalman filter (EnSKF) for coastal ocean problems in three idealized regimes: a flat bottom ...
  • Application-Aware Deadlock-Free Oblivious Routing 
    Kinsy, Michel Ako; Cho, Myong Hyon; Wen, Tina; Suh, Edward; Van Dijk, Marten; Devadas, Srinivas (Association for Computing Machinery, 2009)
    Conventional oblivious routing algorithms are either not application-aware or assume that each flow has its own private channel to ensure deadlock avoidance. We present a framework for application-aware routing that assures ...
  • Application of a New Chiral Phosphepine to the Catalytic Asymmetric Synthesis of Highly Functionalized Cyclopentenes That Bear an Array of Heteroatom-Substituted Quaternary Stereocenters 
    Fujiwara, Yuji; Fu, Gregory C. (American Chemical Society, 2011-08)
    Through the design and synthesis of a new chiral phosphepine, the first catalytic asymmetric method for the [3 + 2] cycloaddition of allenes with olefins has been developed that generates cyclopentenes that bear nitrogen-, ...
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