Browsing FAS Scholarly Articles by Title
Now showing items 14275-14294 of 18258
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Scale-dependent bias of galaxies from baryonic acoustic oscillations
(Oxford University Press, 2011)Baryonic acoustic oscillations (BAOs) modulate the density ratio of baryons to dark matter across large regions of the Universe. We show that the associated variation in the mass-to-light ratio of galaxies should generate ... -
Scale-free primordial cosmology
(American Physical Society, 2014)The large-scale structure of the Universe suggests that the physics underlying its early evolution is scale-free. This was the historic motivation for the Harrison-Zel'dovich-Peebles spectrum and for inflation. Based on a ... -
Scale-invariant hyperscaling-violating holographic theories and the resistivity of strange metals with random-field disorder
(American Physical Society (APS), 2014)We compute the direct-current resistivity of a scale-invariant, d-dimensional strange metal with dynamic critical exponent z and hyperscaling-violating exponent θ, weakly perturbed by a scalar operator coupled to random-field ... -
Scaling and Localization Lengths of a Topologically Disordered System
(American Physical Society, 2011)We consider a noninteracting disordered system designed to model particle diffusion, relaxation in glasses, and impurity bands of semiconductors. Disorder originates in the random spatial distribution of sites. We find ... -
Scaling and shear transformations capture beak shape variation in Darwin's finches
(Proceedings of the National Academy of Sciences, 2010)Evolution by natural selection has resulted in a remarkable diversity of organism morphologies that has long fascinated scientists and served to establish the first relations among species. Despite the essential role of ... -
Scaling Approach to Quantum Non-equilibrium Dynamics of Many-body Systems
(Institute of Physics, 2010)Understanding non-equilibrium quantum dynamics of many-body systems is one of the most challenging problems in modern theoretical physics. While numerous approximate and exact solutions exist for systems in equilibrium, ... -
Scaling China's Ivory Tower
(Alexander von Humboldt Foundation/ DUZ Magazin, 2015) -
Scaling dimensions of monopole operators in the CPNb!1 theory in 2 + 1 dimensions
(Springer Science + Business Media, 2015)We study monopole operators at the conformal critical point of the ℂℙNb−1CPNb−1 theory in 2+1 spacetime dimensions. Using the state-operator correspondence and a saddle point approximation, we compute the scaling dimensions ... -
Scaling in plasticity-induced cell-boundary microstructure: Fragmentation and rotational diffusion
(American Physical Society (APS), 2003)We develop a simple computational model for cell-boundary evolution in plastic deformation. We study the cell-boundary size distribution and cell-boundary misorientation distribution that experimentally have been found to ... -
Scaling network-based spectrum analyzer with constant communication cost
(Institute of Electrical and Electronics Engineers, 2013)e propose a spectrum analyzer that leverages many networked commodity sensor nodes, each of which sam- ples its portion in a wideband spectrum. The sensors operate in parallel and transmit their measurements over a wireless ... -
Scaling of F-Actin Network Rheology to Probe Single Filament Elasticity and Dynamics
(American Physical Society, 2004)The linear and nonlinear viscoelastic response of networks of cross-linked and bundled cytoskeletal filaments demonstrates remarkable scaling with both frequency and applied prestress, which helps elucidate the origins of ... -
Scaling of the ankle extensor muscle-tendon units and the biomechanical implications for bipedal hopping locomotion in the post-pouch kangaroo Macropus fuliginosus
(Wiley-Blackwell, 2017)Bipedal hopping is used by macropods, including rat-kangaroos, wallabies and kangaroos (superfamily Macropodoidea). Interspecific scaling of the ankle extensor muscle-tendon units in the lower hindlimbs of these hopping ... -
Scaling of the Thermal Spectral Function for Quantum Critical Bosons in One Dimension
(2012)We present an improved scheme for the precise evaluation of finite-temperature response functions of strongly correlated systems in the framework of the time-dependent density matrix renormalization group. The maximum times ... -
Scaling of Transverse Nuclear Magnetic Relaxation due to Magnetic Nanoparticle Aggregation
(Elsevier, 2010)The aggregation of superparamagnetic iron oxide (SPIO) nanoparticles decreases the transverse nuclear magnetic resonance (NMR) relaxation time \(T_{2}^{CP}\) of adjacent water molecules measured by a Carr-Purcell-Meiboom-Gill ... -
Scaling Office Hours: Managing Live Q&A in Large Courses
(2012)Computer Science 50 (CS50) is Harvard University’s introductory course for majors and nonmajors alike. So that students have an adequate support structure with which to tackle the course’s weekly programming assignments, ... -
Scaling Pattern to Variations in Size during Development of the Vertebrate Neural Tube
(2016)SUMMARY Anatomical proportions are robustly maintained in individuals that vary enormously in size, both within a species and between members of related taxa. However, the mechanisms underlying scaling are still poorly ... -
Scaling Phloem Transport: Water Potential Equilibrium and Osmoregulatory Flow
(Blackwell Publishing, 2003)In this work, the common assumption that phloem sap is in water potential equilibrium with the surrounding apoplast was examined. With a dimensionless model of phloem translocation that scales with just two dimensionless ... -
Scaling the Critics: Uncovering the Latent Dimensions of Movie Criticism with an Item Response Approach
(American Statistical Association, 2009-10-28)We study the critical opinions of expert movie reviewers as an item response problem. Building on earlier ‘unfolding’ models, we develop a framework that models an individual’s decision to approve or disapprove of an item. ... -
Scaling, Selection, and Evolutionary Dynamics of the Mitotic Spindle
(Elsevier BV, 2015)Background Cellular structures such as the nucleus, Golgi, centrioles, and spindle show remarkable diversity between species, but the mechanisms that produce these variations in cell biology are not known. Results Here ... -
“A Scandalous Woman”? Beauvoir in Paris, January 2008
(The Modern Language Association of America, 2009)