Browsing MIT Open Access Articles by Title

Now showing items 26942-26961 of 54481

    • M dwarfs in Sloan Digital Sky Survey Stripe 82: Photometric light curves and flare rate analysis 

      Kowalski, Adam F.; Hawley, Suzanne L.; Hilton, Eric J.; Becker, Andrew C.; Bochanski, John J.; e.a. (IOP Publishing, 2009-07)
      We present a flare rate analysis of 50,130 M dwarf light curves in Sloan Digital Sky Survey Stripe 82. We identified 271 flares using a customized variability index to search ~2.5 million photometric observations for flux ...

    • M-blocks: Momentum-driven, magnetic modular robots 

      Romanishin, John W.; Gilpin, Kyle; Rus, Daniela L. (Institute of Electrical and Electronics Engineers (IEEE), 2014-01)
      In this paper, we describe a novel self-assembling, self-reconfiguring cubic robot that uses pivoting motions to change its intended geometry. Each individual module can pivot to move linearly on a substrate of stationary ...

    • M-DWARF RAPID ROTATORS AND THE DETECTION OF RELATIVELY YOUNG MULTIPLE M-STAR SYSTEMS 

      Swift, J.; Barclay, Thomas; Still, M.; Handler, G.; Muirhead, Philip S.; e.a. (IOP Publishing, 2014-05)
      We have searched the Kepler light curves of ~3900 M-star targets for evidence of periodicities that indicate, by means of the effects of starspots, rapid stellar rotation. Several analysis techniques, including Fourier ...

    • M-STAR: Magnetism second target advanced reflectometer at the Spallation Neutron Source 

      Lauter, Valeria; Wang, Kang; Mewes, Tim; Glavic, Artur; Toperverg, Boris; e.a. (AIP Publishing, 2022)
      <jats:p> M-STAR is a next generation polarized neutron reflectometer with advanced capabilities. A new focusing guide concept is optimized for samples with dimensions down to a millimeter range. A proposed hybrid pulse-skipping ...

    • M-TUBE enables large-volume bacterial gene delivery using a high-throughput microfluidic electroporation platform 

      Huang, Po-Hsun; Chen, Sijie; Shiver, Anthony L; Culver, Rebecca Neal; Huang, Kerwyn Casey; e.a. (Public Library of Science (PLoS), 2022)
      <jats:p>Conventional cuvette-based and microfluidics-based electroporation approaches for bacterial gene delivery have distinct advantages, but they are typically limited to relatively small sample volumes, reducing their ...

    • M13 Bacteriophage Display Framework That Allows Sortase-Mediated Modification of Surface-Accessible Phage Proteins 

      Hess, Gaelen T.; Cragnolini, Juan J.; Popp, Maximilian W.; Allen, Mark A.; Dougan, Stephanie K.; e.a. (American Chemical Society (ACS), 2012-07)
      We exploit bacterial sortases to attach a variety of moieties to the capsid proteins of M13 bacteriophage. We show that pIII, pIX, and pVIII can be functionalized with entities ranging from small molecules (e.g., fluorophores, ...

    • M13 Phage-Functionalized Single-Walled Carbon Nanotubes As Nanoprobes for Second Near-Infrared Window Fluorescence Imaging of Targeted Tumors 

      Yi, Hyunjung; Ghosh, Debadyuti; Ham, Moon-Ho; Qi, Jifa; Strano, Michael S.; e.a. (American Chemical Society (ACS), 2012-01)
      Second near-infrared (NIR) window light (950–1400 nm) is attractive for in vivo fluorescence imaging due to its deep penetration depth in tissues and low tissue autofluorescence. Here we show genetically engineered ...

    • M13 Virus based detection of bacterial infections in living hosts 

      Ghosh, Debadyuti; Bardhan, Neelkanth Manoj; Belcher, Angela M (Wiley Blackwell, 2013-04)
      We report a first method for using M13 bacteriophage as a multifunctional scaffold for optically imaging bacterial infections in vivo. We demonstrate that M13 virus conjugated with hundreds of dye molecules (M13-Dye) can ...

    • M13 Virus-Enabled Synthesis of Titanium Dioxide Nanowires for Tunable Mesoporous Semiconducting Networks 

      Chen, Po-Yen; Dang, Xiangnan; Qi, Jifa; Hyder, Md Nasim; Dorval Courchesne, Noemie-Manuelle; e.a. (American Chemical Society (ACS), 2015-01)
      Mesoporous semiconducting networks exhibit advantageous photoelectrochemical properties. The M13 virus is a versatile biological scaffold that has been genetically engineered to organize various materials into nanowire ...

    • M13 Virus‐Based Framework for High Fluorescence Enhancement 

      Qi, Jifa; deQuilettes, Dane W.; Huang, Mantao; Lin, Ching-Wei; Bardhan, Neelkanth Manoj; e.a. (Wiley, 2019-05)
      Fluorescence imaging is a powerful tool for studying biologically relevant macromolecules, but its applicability is often limited by the fluorescent probe, which must demonstrate both high site‐specificity and emission ...

    • M13-templated magnetic nanoparticles for targeted in vivo imaging of prostate cancer 

      Ghosh, Debadyuti; Lee, Youjin; Thomas, Stephanie; Kohli, Aditya G.; Yun, Dong Soo; e.a. (Nature Publishing Group, 2012-09)
      Molecular imaging allows clinicians to visualize the progression of tumours and obtain relevant information for patient diagnosis and treatment1. Owing to their intrinsic optical, electrical and magnetic properties, ...

    • m6A is required for resolving progenitor identity during planarian stem cell differentiation 

      Dagan, Yael; Yesharim, Yarden; Bonneau, Ashley R; Frankovits, Tamar; Schwartz, Schraga; e.a. (EMBO, 2022)

    • m[superscript 6]A RNA Modification Controls Cell Fate Transition in Mammalian Embryonic Stem Cells 

      Batista, Pedro J.; Molinie, Benoit; Wang, Jinkai; Qu, Kun; Zhang, Jiajing; e.a. (Elsevier, 2014-10)
      N6-methyl-adenosine (m[superscript 6]A) is the most abundant modification on messenger RNAs and is linked to human diseases, but its functions in mammalian development are poorly understood. Here we reveal the evolutionary ...

    • MAC Centered Cooperation - Synergistic Design of Network Coding, Multi-Packet Reception, and Improved Fairness to Increase Network Throughput 

      Cloud, Jason M.; Zeger, Linda; Medard, Muriel (Institute of Electrical and Electronics Engineers (IEEE), 2012-02)
      We design a cross-layer approach to aid in developing a cooperative solution using multi-packet reception (MPR), network coding (NC), and medium access (MAC). We construct a model for the behavior of the IEEE 802.11 MAC ...

    • MAC Design for Analog Network Coding 

      Khabbazian, Majid; Kuhn, Fabian; Lynch, Nancy Ann; Medard, Muriel; Parandehgheibi, Ali (Association for Computing Machinery (ACM), 2011-06)
      Most medium access control (MAC) mechanisms discard collided packets and consider interference harmful. Recent work on Analog Network Coding (ANC) suggests a different approach, in which multiple interfering transmissions ...

    • MAC for Networks with Multipacket Reception Capability and Spatially Distributed Nodes 

      Celik, Guner Dincer; Zussman, Gil; Khan, Wajahat F.; Modiano, Eytan H. (Institute of Electrical and Electronics Engineers, 2010-02)
      The physical layer of future wireless networks will be based on novel radio technologies such as UWB and MIMO. One of the important capabilities of such technologies is the ability to capture a few packets simultaneously. ...

    • Macaque studies of vaccine and microbicide combinations for preventing HIV-1 sexual transmission 

      Klasse, Per Johan; Dufour, Jason; Veazey, Ronald S.; Barouch, Dan H.; Moore, John P. (National Academy of Sciences, 2012-05)
      Vaccination and the application of a vaginal microbicide have traditionally been considered independent methods to prevent the sexual transmission of HIV-1 to women. Both techniques can be effective in macaque models, and ...

    • Macdonald processes 

      Borodin, Alexei; Corwin, Ivan (Springer-Verlag, 2013-03)
      Macdonald processes are probability measures on sequences of partitions defined in terms of nonnegative specializations of the Macdonald symmetric functions and two Macdonald parameters q,t ∈ [0,1). We prove several results ...

    • Mach-Zehnder interferometry using spin- and valley-polarized quantum Hall edge states in graphene 

      Wei, Di S.; van der Sar, Toeno; Watanabe, Kenji; Taniguchi, Takashi; Halperin, Bertrand I.; e.a. (American Association for the Advancement of Science (AAAS), 2017-08)
      Confined to a two-dimensional plane, electrons in a strong magnetic field travel along the edge in one-dimensional quantum Hall channels that are protected against backscattering. These channels can be used as solid-state ...

    • MACH: My Automated Conversation coacH 

      Courgeon, Matthieu; Martin, Jean-Claude; Mutlu, Bilge; Picard, Rosalind W.; Hoque, Mohammed Ehasanul (Association for Computing Machinery (ACM), 2013-09)
      MACH--My Automated Conversation coacH--is a novel system that provides ubiquitous access to social skills training. The system includes a virtual agent that reads facial expressions, speech, and prosody and responds with ...