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Browsing MIT Open Access Articles by Title

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  • GUTH, LARRY (Cambridge University Press, 2015-09)
    Given a set Γ of low-degree k-dimensional varieties in R[superscript n], we prove that for any D ⩾ 1, there is a non-zero polynomial P of degree at most D so that each component of R[superscript n]\Z(P) intersects ...
  • Saunderson, James F; Parrilo, Pablo A (Springer Berlin Heidelberg, 2014-08)
    We give explicit polynomial-sized (in n and k) semidefinite representations of the hyperbolicity cones associated with the elementary symmetric polynomials of degree k in n variables. These convex cones form a family of ...
  • Borradaile, Glencora; Demaine, Erik D.; Tazari, Siamak (Springer-Verlag Berlin Heidelberg, 2012-06)
    We present the first polynomial-time approximation schemes (PTASes) for the following subset-connectivity problems in edge-weighted graphs of bounded-genus: Steiner tree, low-connectivity survivable-network design, and ...
  • Richter, Charles Andrew; Bry, Adam P.; Roy, Nicholas (Sage Publications, 2016-04)
    We explore the challenges of planning trajectories for quadrotors through cluttered indoor environments. We extend the existing work on polynomial trajectory generation by presenting a method of jointly optimizing polynomial ...
  • Guth, Lawrence; Zahl, Joshua (Oxford University Press - London Mathematical Society, 2018-04)
    We establish new linear and trilinear bounds for collections of tubes in R4 that satisfy the polynomial Wolff axioms. In brief, a collection of δ-tubes satisfies the Wolff axioms if not too many tubes can be contained in ...
  • Barkow, Sarah R.; Levchenko, Igor; Baker, Tania; Sauer, Robert T. (Elsevier, 2009-06)
    In the AAA+ ClpXP protease, ClpX uses repeated cycles of ATP hydrolysis to pull native proteins apart and to translocate the denatured polypeptide into ClpP for degradation. Here, we probe polypeptide features important ...
  • Ni, Karl S.; Nguyen, Truong Q. (Institute of Electrical and Electronics Engineers, 2009-05)
    We observe several characteristics of empirical image interpolating algorithms and contribute four novel concepts and claims. First, we interpret well-known classification-based filtering algorithms in terms of their ...
  • Goodman, Joel I.; Miller, Benjamin A.; Herman, Matthew; Raz, Gil; Jackson, Jeffrey (Institute of Electrical and Electronics Engineers, 2009-05)
    As the demand for higher data rates increases, commercial analog-to-digital converters (ADCs) are more commonly being implemented with multiple on-chip converters whose outputs are time-interleaved. The distortion generated ...
  • Wollenberg, M. S.; Preheim, Sarah Pachocha; Polz, Martin F.; Ruby, E. G.; Preheim, Sarah Pacocha (Society for Applied Microbiology/Blackwell Publishing Ltd., 2012-03)
    This study reports the first description and molecular characterization of naturally occurring, non-bioluminescent strains of Vibrio fischeri. These ‘dark’V. fischeri strains remained non-bioluminescent even after treatment ...
  • Orr-Weaver, Terry L.; Unhavaithaya, Yingdee (Cold Spring Harbor Laboratory Press, 2012-01)
    Proper development requires coordination in growth of the cell types composing an organ. Many plant and animal cells are polyploid, but how these polyploid tissues contribute to organ growth is not well understood. We found ...
  • Swager, Timothy Manning; Izuhara, Daisuke (American Chemical Society (ACS), 2009-11)
    Poly(pyridinium phenylene) conjugated polymers are synthesized by a cross-coupling and cyclization sequence. These polyelectrolytes are freely soluble in water and display high degrees of electroactivity. When reduced ...
  • Woodford, William H.; Li, Zheng; Baram, Nir; Smith, Kyle C.; McKinley, Gareth H.; Carter, W. Craig; Chiang, Yet-Ming; Fan, Frank Yongzhen; Helal, Ahmed H. (American Chemical Society (ACS), 2014-03)
    A new approach to flow battery design is demonstrated wherein diffusion-limited aggregation of nanoscale conductor particles at ∼1 vol % concentration is used to impart mixed electronic-ionic conductivity to redox solutions, ...
  • Hopkins, Jonathan B.; Song, Yuanping; Lee, Howon; Spadaccini, Christopher M.; Fang, Xuanlai (ASME International, 2016-03)
    The aim of this paper is to (1) introduce an approach, called polytope sector-based synthesis (PSS), for synthesizing 2D or 3D microstructural architectures that exhibit a desired bulk-property directionality (e.g., ...
  • Dhar, Shanta; Daniel, Weston L.; Giljohann, David A.; Mirkin, Chad A.; Lippard, Stephen J. (American Chemical Society (ACS), 2009-09)
    Amine-functionalized polyvalent oligonucleotide gold nanoparticles (DNA-Au NPs) were derivatized with a cisplatin prodrug, and the resulting DNA-Au NP conjugates were used to internalize multiple platinum centers. A ...
  • Mao, Xianwen; Rutledge, Gregory C.; Hatton, T. Alan (American Chemical Society (ACS), 2013-06)
    We report noncovalent dispersion of carbon nanotubes (CNTs) in organic liquids with extremely high loading (~2 mg mL[superscript –1]) using polyvinylferrocene (PVF). In contrast to common dispersants, PVF does not contain ...
  • Vuorimaa, Elina; Ketola, Tiia-Maaria; Green, Jordan J.; Lemmetyinen, Helge; Langer, Robert; Urtti, Arto; Yliperttula, Marjo; Hanzlikova, Martina; Anderson, Daniel Griffith (Elsevier, 2011-06)
    A large number of different polymers have been developed and studied for application as DNA carriers for non-viral gene delivery, but the DNA binding properties are not understood. This study describes the efficiency of ...
  • Macindoe, Owen; Kaelbling, Leslie P.; Lozano-Perez, Tomas (Association for the Advancement of Artificial Intelligence, 2012-10)
    We present POMCoP, a system for online planning in collaborative domains that reasons about how its actions will affect its understanding of human intentions, and demonstrate its use in building sidekicks for cooperative ...
  • Cael, B. B.; Bisson, Kelsey; Lambert, Bennett Spencer (American Physical Society, 2015-11)
    Studies over the past decade have reported power-law distributions for the areas of terrestrial lakes and Arctic melt ponds, as well as fractal relationships between their areas and coastlines. Here we report similar fractal ...
  • Keshvari, Shaiyan O.; Rosenholtz, Ruth Ellen (Association for Research in Vision and Ophthalmology (ARVO), 2016-02)
    Visual crowding refers to phenomena in which the perception of a peripheral target is strongly affected by nearby flankers. Observers often report seeing the stimuli as “jumbled up,” or otherwise confuse the target with ...
  • Zsom, Andras (IOP Publishing, 2015-10)
    What can we tell about exoplanet habitability if currently only the stellar properties, planet radius, and the incoming stellar flux are known? A planet is in the habitable zone (HZ) if it harbors liquid water on its ...
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