Browsing FAS Scholarly Articles by Title
Now showing items 2781-2800 of 18256
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Conservation of changing landscapes: vegetation, land-use history, and fire on Cape Cod National Seashore
(Ecological Society of America, 2003)The pervasive impact of historical land use is often underappreciated in the management and restoration of conservation areas and natural resources. We used historical and ecological approaches to determine the relative ... -
Conservation of uORF repressiveness and sequence features in mouse, human and zebrafish
(Nature Publishing Group, 2016)Upstream open reading frames (uORFs) are ubiquitous repressive genetic elements in vertebrate mRNAs. While much is known about the regulation of individual genes by their uORFs, the range of uORF-mediated translational ... -
Conservation Weighting Functions Enable Covariance Analyses to Detect Functionally Important Amino Acids
(Public Library of Science, 2014)The explosive growth in the number of protein sequences gives rise to the possibility of using the natural variation in sequences of homologous proteins to find residues that control different protein phenotypes. Because ... -
A conserved cell growth cycle can account for the environmental stress responses of divergent eukaryotes
(American Society for Cell Biology (ASCB), 2012)The respiratory metabolic cycle in budding yeast (Saccharomyces cerevisiae) consists of two phases most simply defined phenomenologically: low oxygen consumption (LOC) and high oxygen consumption (HOC). Each phase is ... -
Conserved Current Correlators of Conformal Field Theories in 2+1 Dimensions
(American Physical Society (APS), 2013)We compute current correlators of the CPN−1 field theory in 2+1 dimensions, both at the critical point and in the phase with spontaneously broken SU(N) symmetry. Universal constants are obtained to next-to-leading order ... -
Conserved methionine dictates substrate preference in Nramp-family divalent metal transporters
(National Academy of Sciences, 2016)Natural resistance-associated macrophage protein (Nramp) family transporters catalyze uptake of essential divalent transition metals like iron and manganese. To discriminate against abundant competitors, the Nramp metal-binding ... -
Conserved Roles for Polycomb Repressive Complex 2 in the Regulation of Lateral Organ Development in Aquilegia X Coerulea 'Origami'
(Springer (Biomed Central Ltd.), 2013)Background: Epigenetic regulation is necessary for maintaining gene expression patterns in multicellular organisms. The Polycomb Group (PcG) proteins form several complexes with important and deeply conserved epigenetic ... -
Consigning the Twentieth Century to History: Alternative Narratives for the Modern Era
(University of Chicago Press, 2000) -
Consistency and Cautious Fictitious Play
(Elsevier, 1995)We study a variation of fictitious play, in which the probability of each action is an exponential function of that action's utility against the historical frequency of opponents' play. Regardless of the opponents' strategies, ... -
Consistency of spherical, gravity-dominated dynamics with quasar high-ionization emission-line profiles
(IOP Publishing, 1993)Line profile data are used to test a simple kinematic model - spherically symmetric gravitational free fall - in which the number of free parameters is limited by requiring physical self-consistency. The predictions of ... -
Consistent Factor Estimation in Dynamic Factor Models with Structural Instability
(Elsevier BV, 2013)This paper considers the estimation of approximate dynamic factor models when there is temporal instability in the factor loadings. We characterize the type and magnitude of instabilities under which the principal components ... -
Consistent scenarios for cosmic-ray excesses from Sommerfeld-enhanced dark matter annihilation
(IOP Publishing, 2011)Anomalies in direct and indirect detection have motivated models of dark matter consisting of a multiplet of nearly-degenerate states, coupled by a new GeV-scale interaction. We perform a careful analysis of the thermal ... -
Consistent use of effective potentials
(American Physical Society (APS), 2015)It is well known that effective potentials can be gauge dependent while their values at extrema should be gauge invariant. Unfortunately, establishing this invariance in perturbation theory is not straightforward, since ... -
Consistent Use of the Standard Model Effective Potential
(American Physical Society (APS), 2014)The stability of the Standard Model is determined by the true minimum of the effective Higgs potential. We show that the potential at its minimum when computed by the traditional method is strongly dependent on the gauge ... -
Consonant Harmony in Karaim
(Dept. of Linguistics and Philosophy, Massachusetts Institute of Technology, 2004) -
Conspiracy, security, and human care in Donnersmarck's Liben der anderen.
(GESIS, 2013)Florian Henckel von Donnersmarck's acclaimed film, Das Leben der Anderen (2006), affords a provocative opportunity for investigating the relation between conspiracy and security. Although state-sponsored onspiracies breed ... -
Constant Growth Rate Can Be Supported by Decreasing Energy Flux and Increasing Aerobic Glycolysis
(Elsevier BV, 2014)Fermenting glucose in the presence of enough oxygen to support respiration, known as aerobic glycolysis, is believed to maximize growth rate. We observed increasing aerobic glycolysis during exponential growth, suggesting ... -
The constant inner-disk radius of LMC X-3: A basis for measuring black hole spin
(IOP Publishing, 2010)he black hole binary system LMC X-3 has been observed by virtually every X-ray mission since the inception of X-ray astronomy. Among the persistent sources, LMC X-3 is uniquely both habitually soft and highly variable. ... -
Constant rate of p53 tetramerization in response to DNA damage controls the p53 response
(BlackWell Publishing Ltd, 2014)The dynamics of the tumor suppressor protein p53 have been previously investigated in single cells using fluorescently tagged p53. Such approach reports on the total abundance of p53 but does not provide a measure for ... -
A Constant Recontracting Model of Sovereign Debt
(University of Chicago Press, 1989)We present a dynamic model of international lending in which borrowers cannot commit to future repayments and in which debtors can sometimes successfully negotiate partial defaults or "rescheduling agreements." All parties ...