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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 ...
  • Imai, Shin-ichiro; Guarente, Leonard Pershing (Elsevier, 2014-08)
    Nicotinamide adenine dinucleotide (NAD[superscript +]) is a classical coenzyme mediating many redox reactions. NAD[superscript +] also plays an important role in the regulation of NAD[superscript +]-consuming enzymes, ...
  • 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 ...
  • Bangert, Julian; Zeldovich, Nickolai (Institute of Electrical and Electronics Engineers (IEEE), 2014-05)
    We present Nail, an interface generator that allows programmers to safely parse and generate protocols defined by a Parser-Expression based grammar. Nail uses a richer set of parser combinators that induce an internal ...
  • 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 ...
  • White, Paul B.; Hong, Mei (American Chemical Society (ACS), 2017-06-29)
    Strong or low-barrier hydrogen bonds have often been proposed in proteins to explain enzyme catalysis and proton-transfer reactions. So far ¹H chemical shifts and scalar couplings have been used as the main NMR spectroscopic ...
  • 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 ...
  • Ding, Ming-Shuai; Tian, Lin; Han, Wei-Zhong; Ma, Evan; Shan, Zhi-Wei; Li, Ju (American Physical Society, 2016-11)
    Helium bubbles are one of the typical radiation microstructures in metals and alloys, significantly influencing their deformation behavior. However, the dynamic evolution of helium bubbles under straining is less explored ...
  • Mao, Xianwen; Rutledge, Gregory C.; Hatton, Trevor Alan (Elsevier, 2014-08)
    Carbon materials are important for many electrochemical applications due to their tunable electron-transfer and charge-storage properties. Judicious structural manipulation of carbon to modulate its chemical, electronic, ...
  • 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 ...
  • Liao, Bolin; Chen, Gang (Cambridge University Press (Materials Research Society), 2015-09)
    The making of composites has served as a working principle of achieving material properties beyond those of their homogeneous counterparts. The classical effective-medium theory models the constituent phases with local ...
  • 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 ...
  • Bromer, Cailey; Kinney, Justin; Bartol, Thomas M.; Chirillo, Michael A.; Bourne, Jennifer N.; Harris, Kristen M.; Sejnowski, Terrence J. (eLife Sciences Publications, Ltd., 2015-11)
    Information in a computer is quantified by the number of bits that can be stored and recovered. An important question about the brain is how much information can be stored at a synapse through synaptic plasticity, which ...
  • Ortlepp, Thomas; Zhao, Qingyuan; McCaughan, Adam N; Dane, Andrew E.; Berggren, Karl K (IOP Publishing, 2017-03)
    Integration with conventional electronics offers a straightforward and economical approach to upgrading existing superconducting technologies, such as scaling up superconducting detectors into large arrays and combining ...
  • Kalidindi, Arvind Rama; Chookajorn, Tongjai; Schuh, Christopher A. (Springer Nature, 2015-09)
    The instability of nanocrystalline materials against both grain growth and bulk phase separation is a principal challenge in their production and usage. This article reviews the thermodynamic stabilization of nanocrystalline ...
  • Kagan, Cherie R.; Fernandez, Laura E.; Gogotsi, Yury; Hersam, Mark C.; Nel, André E.; Penner, Reginald M.; Willson, C. Grant; Weiss, Paul S.; Hammond, Paula T (American Chemical Society (ACS), 2016-10)
    Nanoscience and nanotechnology are poised to contribute to a wide range of fields, from health and medicine to electronics, energy, security, and more. These contributions come both directly in the form of new materials, ...
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