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Browsing MIT Open Access Articles by Title

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  • Adams, Allan; Jockers, Hans; Kumar, Vijay; Lapan, Joshua M. (Springer-Verlag, 2011-12)
    We study sigma models in AdS4 with global N = 1 supersymmetry and find that they differ significantly from their flat-space cousins — the target space is constrained to be a K¨ahler manifold with an exact K¨ahler form, ...
  • Chester, Shai M.; Lee, Jaehoon; Pufu, Silviu S.; Yacoby, Ran (Springer-Verlag, 2014-09)
    We analyze the constraints imposed by unitarity and crossing symmetry on the four-point function of the stress-tensor multiplet of N=8 superconformal field theories in three dimensions. We first derive the superconformal ...
  • Mouchiroud, Laurent; Houtkooper, Riekelt H.; Moullan, Norman; Katsyuba, Elena; Ryu, Dongryeol; Canto, Carles; Mottis, Adrienne; Jo, Young-Suk; Viswanathan, Mohan; Schoonjans, Kristina; Auwerx, Johan; Guarente, Leonard Pershing (Elsevier, 2013-07)
    NAD[superscript +] is an important cofactor regulating metabolic homeostasis and a rate-limiting substrate for sirtuin deacylases. We show that NAD[superscript +] levels are reduced in aged mice and Caenorhabditis elegans ...
  • Kao, Cindy Hsin-Liu; Dementyev, Artem; Paradiso, Joseph A.; Schmandt, Christopher M. (Association for Computing Machinery (ACM), 2015-04)
    We present NailO, a nail-mounted gestural input surface. Using capacitive sensing on printed electrodes, the interface can distinguish on-nail finger swipe gestures with high accuracy (>92%). NailO works in real-time: we ...
  • Yu, Zechuan; Lau, Denvid (Biomed Central Ltd., 2015-04)
    Atomistic simulations of cementitious material can enrich our understanding of its structural and mechanical properties, whereas current computational capacities restrict the investigation length scale within 10 nm. In ...
  • Onbasli, Mehmet Cengiz; Okyay, Ali K. (SPIE--the International Society for Optical Engineering, 2010-08)
    State-of-the-art copper interconnects suffer from increasing spatial power dissipation due to chip downscaling and RC delays reducing operation bandwidth. Wide bandwidth, minimized Ohmic loss, deep sub-wavelength confinement ...
  • Bernardi, Marco; Lohrman, Jessica; Kirkeminde, Alec; Ferralis, Nicola; Grossman, Jeffrey C.; Ren, Shenqiang; Kumar, Priyank Vijaya (American Chemical Society (ACS), 2012-09)
    Carbon materials are excellent candidates for photovoltaic solar cells: they are Earth-abundant, possess high optical absorption, and maintain superior thermal and photostability. Here we report on solar cells with active ...
  • Fachin, Fabio; Viana, J.C.; Pontes, A.J.; Rocha, L.A.; Sepulveda, A.T.; Wardle, Brian L.; Guzman de Villoria, Roberto (Elsevier, 2012-01)
    A new approach for the fabrication of flexible pressure sensors based on aligned carbon nanotubes (A-CNTs) is described in this paper. The technology is suitable for blood pressure sensors that can be attached to a stent-graft ...
  • Cohen-Karni, Tzahi; Jeong, Kyung Jae; Tsui, Jonathan H.; Reznor, Gally; Mustata, Mirela; Wanunu, Meni; Graham, Adam; Marks, Carolyn; Bell, David C.; Langer, Robert; Kohane, Daniel S. (American Chemical Society (ACS), 2012-08)
    Cell-biomaterial interactions can be controlled by modifying the surface chemistry or nanotopography of the material, to induce cell proliferation and differentiation if desired. Here we combine both approaches in forming ...
  • Rusina, Anastasia; Durach, Maxim; Nelson, Keith Adam; Stockman, Mark I. (SPIE, 2010-08)
    Here, we establish the principal limits for the nanoconcentration of the THz radiation in metal/dielectric waveguides and determine their optimum shapes required for this nanoconcentration. We predict that the adiabatic ...
  • Duguet, T.; Unal, Baris; Ledieu, J.; Dubois, J. M.; Fournee, V.; Thiel, P. A. (American Physical Society, 2011-02)
    Among the three coexisting types of terraces found on the twofold surface of the d-Al-Cu-Co quasicrystal, nanodomains are essentially observed on the transition-metal rich ones, with a coherent interface boundary. Both ...
  • Antoniadis, Dimitri A. (Institute of Electrical and Electronics Engineers, 2010-01)
    Leading edge CMOS technologies today are unique examples of nanoscale engineering at an industrial scale. As we celebrate this remarkable achievement of our industry that forms the ever-expanding technology basis of modern ...
  • Wang, Evelyn N.; Xiao, Rong; Chu, Kuang-Han (SPIE, 2010-02)
    Microfluidic systems offer compact and efficient thermal management strategies. In this work, we investigate novel nanostructured surfaces to control fluidic behavior and enhance heat dissipation in microfluidic systems. ...
  • Bettinger, Christopher J.; Kulig, Katherine M.; Vacanti, Joseph P.; Langer, Robert; Borenstein, Jeffrey T. (Mary Ann Liebert, Inc., 2009-07)
    Synthetic substrates that mimic the properties of extracellular matrix proteins hold significant promise for use in systems designed for tissue engineering applications. In this report, we designed a synthetic polymeric ...
  • Li, Luozhou; Bayn, Igal; Lu, Ming; Nam, Chang-Yong; Stein, Aaron; Schroder, Tim; Harris, Nicholas Christopher; Englund, Dirk Robert (Nature Publishing Group, 2015-01)
    A major challenge in nanofabrication is to pattern unconventional substrates that cannot be processed for a variety of reasons, such as incompatibility with spin coating, electron beam lithography, optical lithography, or ...
  • Buongiorno, Jacopo; Hu, Lin-Wen (American Society of Mechanical Engineers, 2009-12)
    Colloidal dispersions of nanoparticles are known as `nanofluids'. Such engineered fluids offer the potential for enhancing heat transfer, particularly boiling heat transfer, while avoiding the drawbacks (i.e., erosion, ...
  • Kim, Sung Jae; Song, Yong-Ak; Han, Jongyoon (Royal Society of Chemistry, 2010-01)
    Recently, a new type of electrokinetic concentration devices has been developed in a microfluidic chip format, which allows efficient trapping and concentration of biomolecules by utilizing ion concentration polarization ...
  • Zhang, Ce; Jiang, Kai; Liu, Fan; Doyle, Patrick S.; van Kan, Jeroen A.; van der Maarel, Johan R. C. (Royal Society of Chemistry, The, 2013-04)
    We report an approach to study the in situ conformational response of single biomolecules such as DNA to a change in environmental solution conditions. These conditions are, for example, the composition of the buffer or ...
  • Picallo, Clara; Gravelle, Simon; Joly, Laurent; Charlaix, Elisabeth; Bocquet, Lyderic (American Physical Society, 2013-12)
    Osmosis describes the flow of water across semipermeable membranes powered by the chemical free energy extracted from salinity gradients. While osmosis can be expressed in simple terms via the van ’t Hoff ideal gas formula ...
  • Xu, Cong; Fan, Zi Peng; Fogley, Rachel; DiBiase, Anthony; Trompouki, Eirini; Unternaehrer, Juli; Xiong, Fengzhu; Torregroza, Ingrid; Evans, Todd; Megason, Sean G.; Daley, George Q.; Schier, Alexander F.; Young, Richard A.; Zon, Leonard I.; Muller, Patrick; Young, Richard A. (Elsevier, 2012-03)
    In mammalian embryonic stem cells, the acquisition of pluripotency is dependent on Nanog, but the in vivo analysis of Nanog has been hampered by its requirement for early mouse development. In an effort to examine the role ...
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