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Browsing MIT Open Access Articles by Title

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  • Frebel, Anna L.; Yong, David; Norris, John E.; Bessell, M. S.; Christlieb, N.; Asplund, M.; Beers, Timothy C.; Barklem, P. S.; Ryan, S. G. (IOP Publishing, 2012-12)
    We examine the metallicity distribution function (MDF) and fraction of carbon-enhanced metal-poor (CEMP) stars in a sample that includes 86 stars with [Fe/H] ≤ –3.0, based on high-resolution, high signal-to-noise spectroscopy, ...
  • Frebel, Anna L.; Norris, John E.; Yong, David; Bessell, M. S.; Christlieb, N.; Asplund, M.; Gilmore, Gerard; Wyse, Rosemary F. G.; Beers, Timothy C.; Barklem, P. S.; Ryan, S. G. (IOP Publishing, 2012-12)
    We discuss the carbon-normal and carbon-rich populations of Galactic halo stars having [Fe/H] [< over ~] –3.0, utilizing chemical abundances from high-resolution, high signal-to-noise model-atmosphere analyses. The C-rich ...
  • Wu, Yi-Chieh; Bansal, Mukul S.; Kellis, Manolis; Rasmussen, Matthew D. (Cold Spring Harbor Laboratory Press, 2013-12)
    Accurate gene tree-species tree reconciliation is fundamental to inferring the evolutionary history of a gene family. However, although it has long been appreciated that population-related effects such as incomplete lineage ...
  • Syed, Zeeshan; Stultz, Collin M.; Kellis, Manolis; Indyk, Piotr; Guttag, John V. (Association for Computing Machinery (ACM), 2010-01)
    In this article, we propose a methodology for identifying predictive physiological patterns in the absence of prior knowledge. We use the principle of conservation to identify activity that consistently precedes an outcome ...
  • Cho, Taeg Sang; Levin, Anat; Durand, Fredo; Freeman, William T. (Institute of Electrical and Electronics Engineers, 2010-03)
    Object movement during exposure generates blur. Removing blur is challenging because one has to estimate the motion blur, which can spatially vary over the image. Even if the motion is successfully identified, blur removal ...
  • Rubinstein, Michael; Liu, Ce; Sand, Peter; Durand, Fredo; Freeman, William T. (Institute of Electrical and Electronics Engineers (IEEE), 2011-06)
    Motions can occur over both short and long time scales. We introduce motion denoising, which treats short-term changes as noise, long-term changes as signal, and re-renders a video to reveal the underlying long-term events. ...
  • Caruyer, Emmanuel; Aganj, Iman; Lenglet, Christophe; Sapiro, Guillermo; Deriche, Rachid (Hindawi Publishing Corporation, 2013-01)
    The acquisition of high angular resolution diffusion MRI is particularly long and subject motion can become an issue. The orientation distribution function (ODF) can be reconstructed online incrementally from diffusion-weighted ...
  • Dong, Shuonan; Williams, Brian Charles (Institute of Electrical and Electronics Engineers (IEEE), 2011-05)
    Commanding an autonomous system through complex motions at a low level can be tedious or impractical for systems with many degrees of freedom. Allowing an operator to demonstrate the desired motions directly can often ...
  • Huang, Ivy; Rominger, Jeffrey Tsaros; Nepf, Heidi (American Society of Limnology and Oceanography, 2011)
    We consider how the flapping of kelp blades may enhance the flux of nutrients to a blade, by stripping away the diffusive sub-layer and renewing the fluid at the blade surface. The surface renewal model explains the degree ...
  • Hover, Franz S.; Greytak, Matthew B. (Institute of Electrical and Electronics Engineers, 2010-01)
    We present a robust motion planning algorithm for a holonomic mobile robot that incorporates the risk of collisions directly in the cost function. This deterministic algorithm uses analytic predictions of the path-following ...
  • Poh, Ming-Zher; Swenson, Nicholas C.; Picard, Rosalind W. (Institute of Electrical and Electronics Engineers, 2010-06)
    This paper addresses the design considerations and critical evaluation of a novel embodiment for wearable photoplethysmography (PPG) comprising a magnetic earring sensor and wireless earpiece. The miniaturized sensor can ...
  • Manso, Gustavo (American Finance Association, 2011-10)
    Motivating innovation is an important concern in many incentive problems. For example, shareholders of large corporations often need to motivate managers to pursue more innovative business strategies. This paper shows that ...
  • Obukhova, Elena (Elsevier B.V., 2012-05)
    While the idea that contacts matter in finding a job is intuitively appealing, we still do not know—after decades of research—how and why strong ties benefit job seekers. To resolve this confusion, we need to theorize how ...
  • Putrino, David F.; Chen, Zhe; Ghosh, Soumya; Brown, Emery N. (Hindawi Pub. Corp., 2011-08)
    Neurons in the Primary Motor Cortex (MI) are known to form functional ensembles with one another in order to produce voluntary movement. Neural network changes during skill learning are thought to be involved in improved ...
  • Putrino, David F.; Chen, Zhe; Ghosh, Soumya; Brown, Emery N. (Hindawi Pub. Corp., 2011-08)
    Neurons in the Primary Motor Cortex (MI) are known to form functional ensembles with one another in order to produce voluntary movement. Neural network changes during skill learning are thought to be involved in improved ...
  • Wendler, Petra; Shorter, James; Snead, David; Plisson, Celia; Clare, Daniel K.; Saibil, Helen R.; Lindquist, Susan (Elsevier, 2009-04)
    The protein-remodeling machine Hsp104 dissolves amorphous aggregates as well as ordered amyloid assemblies such as yeast prions. Force generation originates from a tandem AAA+ (ATPases associated with various cellular ...
  • Kim, Yong Baek; Paramekanti, Arun; Senthil, Todadri; Podolsky, Daniel (American Physical Society, 2009-05)
    We study a bandwidth controlled Mott metal-insulator transition (MIT) from a Fermi-liquid metal to a quantum spin-liquid insulator in three dimensions. Using a slave rotor approach including gauge fluctuations, we obtain ...
  • Zhang, Qing; Menon, Rajasree; Wang, Hong; Bardeesy, Nabeel; Dinulescu, Daniela; Kucherlapati, Raju; Politi, Katerina; Aebersold, Ruedi; Jacks, Tyler E.; Deutsch, Eric W.; Pitteri, Sharon J.; Faca, Vitor M.; Newcomb, Lisa F.; DePinho, Ronald A.; Hung, Kenneth E.; Omenn, Gilbert S.; States, David J.; Hanash, Samir M. (BioMed Central Ltd, 2008-06)
    We present an in-depth analysis of mouse plasma leading to the development of a publicly available repository composed of 568 liquid chromatography-tandem mass spectrometry runs. A total of 13,779 distinct peptides have ...
  • Ringgaard, Simon; van Zon, Jeroen Sebastiaan; Howard, Martin; Gerdes, Kenn (National Academy of Sciences, 2009-11)
    Bacterial plasmids encode partitioning (par) loci that confer stable plasmid inheritance. We showed previously that, in the presence of ParB and parC encoded by the par2 locus of plasmid pB171, ParA formed cytoskeletal-like ...
  • Edwards, Dylan J; Dipietro, Laura; Demirtas-Tatlidede, Asli; Medeiros, Ana H; Thickbroom, Gary W; Mastaglia, Francis L; Pascual-Leone, Alvaro; Krebs, Hermano Igo (BioMed Central Ltd, 2014-03)
    Background: A peripheral nerve stimulus can enhance or suppress the evoked response to transcranial magnetic stimulation (TMS) depending on the latency of the preceding peripheral nerve stimulation (PNS) pulse. Similarly, ...
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