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Now showing items 57448-57467 of 117846
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K E E P E R : online conversation support scaffolding modeled after ancient and modern social technologies
(Massachusetts Institute of Technology, 2020)Emergence, when an entity is observed to have properties its parts do not have on their own, is an awe inducing phenomenon seen within nature, complex organization theory, physics, art, and philosophy. Humans can experience ... -
K*(892)0 and K̅ *(892)0 production in central Pb + Pb, Si + Si, C + C, and inelastic p + p collisions at 158A GeV
(American Physical Society, 2011-12)Production of the K∗(892)0 and K∗(892)0 resonances was studied via their K+π− and K−π+ decay modes in central Pb + Pb, Si + Si, C + C, and inelastic p + p collisions at 158A GeV(√sNN = 17.3 GeV) with the NA49 detector at ... -
K, Na distribution and unit cell parameters of alkali feldspars.
(Massachusetts Institute of Technology, 1968) -
K-distribution fading models for Bayesian estimation of an underwater acoustic channel
(Massachusetts Institute of Technology, 2011)Current underwater acoustic channel estimation techniques generally apply linear MMSE estimation. This approach is optimal in a mean square error sense under the assumption that the impulse response fluctuations are well ... -
K-Lines: A Theory of Memory
(1979-06-01)Most theories of memory suggest that when we learn or memorize something, some "representation" of that something is constructed, stored and later retrieved. This raises questions like: How is information represented? ... -
K-median clustering, model-based compressive sensing, and sparse recovery for earth mover distance
(Association for Computing Machinery (ACM), 2011-06)We initiate the study of sparse recovery problems under the Earth-Mover Distance (EMD). Specifically, we design a distribution over m x n matrices A such that for any x, given Ax, we can recover a k-sparse approximation ... -
K-ras Mutation Targeted to Gastric Tissue Progenitor Cells Results in Chronic Inflammation, an Altered Microenvironment, and Progression to Intraepithelial
(American Association for Cancer Research, 2010-11)Chronic infectious diseases, such as Helicobacter pylori infection, can promote cancer in a large part through induction of chronic inflammation. Oncogenic K-ras mutation in epithelial cells activates inflammatory pathways, ... -
K-robots clustering of moving sensors using coresets
(Institute of Electrical and Electronics Engineers (IEEE), 2013-05)We present an approach to position k servers (e.g. mobile robots) to provide a service to n independently moving clients; for example, in mobile ad-hoc networking applications where inter-agent distances need to be minimized, ... -
The K-server problem via a modern optimization lens
(Elsevier BV, 2019-07)We consider the well-known K-server problem from the perspective of mixed integer, robust and adaptive optimization. We propose a new tractable mixed integer linear formulation of the K-server problem that incorporates ... -
A /->/k-space integral equation for describing propagation through a strongly inhomogeneous plasma density profile
(MIT Plasma Science and Fusion Center, 2015-02-19) -
K-Star rapid rotators and the detection of relatively young multiple K-Star systems
(Massachusetts Institute of Technology, 2014)In this thesis, I searched through the Kepler light curves of 14,440 K-star targets for evidence of periodicities that indicate rapid stellar rotation. Many Kepler M, K, and G stars show modulations in flux due to rotating ... -
K-theoretic Hall algebras for quivers with potential
(Massachusetts Institute of Technology, 2020)Given a quiver with potential (Q, W), Kontsevich-Soibelman constructed a Hall algebra on the cohomology of the stack of representations of (Q, W). As shown by Davison-Meinhardt, this algebra comes with a filtration whose ... -
K-theory and index theory on manifolds with boundary
(Massachusetts Institute of Technology, 1991) -
K-theory of endomorphisms via noncommutative motives
(American Mathematical Society (AMS), 2015-07)We extend the K-theory of endomorphisms functor from ordinary rings to (stable) ∞-categories. We show that KEnd(-) descends to the category of noncommutative motives, where it is corepresented by the noncommutative motive ... -
K/ pi Fluctuations at Relativistic Energies
(American Physical Society, 2009-08)We report K/π fluctuations from Au+Au collisions at √[s[subscript NN]]=19.6, 62.4, 130, and 200 GeV using the STAR detector at the Relativistic Heavy Ion Collider. K/π fluctuations in central collisions show little dependence ... -
K13-Mediated Reduced Susceptibility to Artemisinin in Plasmodium falciparum Is Overlaid on a Trait of Enhanced DNA Damage Repair
(Elsevier BV, 2020-08)Southeast Asia (SEA) has been the breeding ground for malaria drug resistance, including resistance to artemisinin, the first-line anti-malarial drug. In this study, Xiong et al. find a relationship between DNA damage ... -
K2-288Bb: A Small Temperate Planet in a Low-mass Binary System Discovered by Citizen Scientists
(IOP Publishing, 2019-01)Observations from the Kepler and K2 missions have provided the astronomical community with unprecedented amounts of data to search for transiting exoplanets and other astrophysical phenomena. Here, we present K2-288, a ... -
K2-291b: A Rocky Super-Earth in a 2.2 day Orbit
© 2019. The American Astronomical Society. All rights reserved.. K2-291 is a solar-type star with a radius of R ∗ = 0.899 ±0.034 R and mass of M ∗ = 0.934 ±0.038 M . From the K2 C13 data, we found one super-Earth planet ... -
THE K2-ESPRINT PROJECT III: A CLOSE-IN SUPER-EARTH AROUND A METAL-RICH MID-M DWARF
(IOP Publishing, 2016-03)We validate a R[subscript p]=2.32 ± 0.24R[subscript ⊕] planet on a close-in orbit (P = 2.260455 ± 0.000041 days) around K2-28 (EPIC 206318379), a metal-rich M4-type dwarf in the Campaign 3 field of the K2 mission. Our ... -
THE K2-ESPRINT PROJECT IV. A HOT JUPITER IN A PROGRADE ORBIT WITH A POSSIBLE STELLAR COMPANION
(American Astronomical Society, 2016-06)We report on the detection and early characterization of a hot Jupiter in a three day orbit around K2-34 (EPIC 212110888), a metal-rich F-type star located in the K2 Cycle 5 field. Our follow-up campaign involves precise ...
