Browsing FAS Scholarly Articles by Title
Now showing items 3480-3499 of 18292
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Density and Temperature Structure of TMC‐1C from 450 and 850 Micron Maps
(American Astronomical Society, 2005) -
Density Jumps Near the Virial Radius of Galaxy Clusters
(American Astronomical Society, 2016)Recent simulations have indicated that the dark matter halos of galaxy clusters should feature steep density jumps near the virial radius. Since the member galaxies are expected to follow similar collisionless dynamics as ... -
Density Operators and Quasiprobability Distributions
(American Physical Society (APS), 1969)The problem of expanding a density operator ρ in forms that simplify the evaluation of important classes of quantum-mechanical expectation values is studied. The weight function P ( α ) of the P representation, the Wigner ... -
Density ripples in expanding low-dimensional gases as a probe of correlations
(American Physical Society (APS), 2009)We investigate theoretically the evolution of the two-point density correlation function of a low-dimensional ultracold Bose gas after release from a tight transverse confinement. In the course of expansion thermal and ... -
Density wave instabilities in a correlated two-dimensional metal
(American Physical Society (APS), 2014)Motivated by recent experimental evidence of charge order in the pseudogap phase of cuprates, we perform a variational analysis of spin-singlet density wave ordering in metals with antiferromagnetic interactions on the ... -
Density-based separation in multiphase systems provides a simple method to identify sickle cell disease
(Proceedings of the National Academy of Sciences, 2014)Although effective low-cost interventions exist, child mortality attributable to sickle cell disease (SCD) remains high in low-resource areas due, in large part, to the lack of accessible diagnostic methods. The presence ... -
Density-wave instabilities of fractionalized Fermi liquids
(American Physical Society (APS), 2014)Recent experiments in the underdoped regime of the hole-doped cuprates have found evidence for an incommensurate charge density-wave state. We present an analysis of the charge ordering instabilities in a metal with ... -
Dental development of the Taï Forest chimpanzees revisited
(Elsevier BV, 2010)Developmental studies consistently suggest that teeth are more buffered from the environment than other skeletal elements. The surprising finding of late tooth eruption in wild chimpanzees (Zihlman et al., 2004) warrants ... -
Dental evidence for ontogenetic differences between modern humans and Neanderthals
(Proceedings of the National Academy of Sciences, 2010)Humans have an unusual life history, with an early weaning age, long childhood, late first reproduction, short interbirth intervals, and long lifespan. In contrast, great apes wean later, reproduce earlier, and have longer ... -
Dental Evidence from the Aterian Human Populations of Morocco
(Springer-Verlag, 2012)The Aterian fossil hominins represent one of the most abundant series of human remains associated with Middle Stone Age/Middle Paleolithic assemblages in Africa. Their dates have been revised and they are now mostly assigned ... -
Dental Ontogeny in Pliocene and Early Pleistocene Hominins
(Public Library of Science, 2015)Until recently, our understanding of the evolution of human growth and development derived from studies of fossil juveniles that employed extant populations for both age determination and comparison. This circular approach ... -
Dental tissue proportions in fossil orangutans from mainland Asia and Indonesia
(Asian-Australian Association of Paleoanthopologists, 2011)Orangutans (Pongo) are the only great ape genus with a substantial Pleistocene and Holocene fossil record, demonstrating a much larger geographic range than extant populations. In addition to having an extensive fossil ... -
Deoxyfluorination of Phenols
(American Chemical Society, 2011)An operationally simple ipso fluorination of phenols with a new deoxyfluorination reagent is presented. -
Departures from eustasy in Pliocene sea-level records
(Nature Research, 2011)Proxy data suggest that atmospheric CO2 levels during the middle of the Pliocene epoch (about 3 Myr ago) were similar to today, leading to the use of this interval as a potential analogue for future climate change. Estimates ... -
Dependence of Avidity on Linker Length for a Bivalent Ligand–Bivalent Receptor Model System
(American Chemical Society, 2012)This paper describes a synthetic dimer of carbonic anhydrase, and a series of bivalent sulfonamide ligands with different lengths (25 to 69 Å between the ends of the fully extended ligands), as a model system to use in ... -
Dependence of entrainment in shallow cumulus convection on vertical velocity and distance to cloud edge
(Wiley-Blackwell, 2016)The dependence of entrainment rate on environmental conditions and cloud characteristics is investigated using large eddy simulations (LES) of the response of shallow cumulus convection to a small-amplitude temperature ... -
The dependence of nonadiabatic couplings on the origin of electron coordinates
(AIP Publishing, 2002)It is shown both analytically and numerically for a number of examples that both radial and rotational nonadiabatic couplings within the standard adiabatic approach depend on the origin of the light-particle coordinates ... -
Dependence of nuclear spin singlet lifetimes on RF spin-locking power
(Elsevier BV, 2012)We measure the lifetime of long-lived nuclear spin singlet states as a function of the strength of the RF spin-locking field and present a simple theoretical model that agrees well with our measurements, including the ... -
Dependence of the energy gap on T c: Absence of scaling in the copper oxide superconductors
(American Physical Society, 1993) -
The Dependence of Value on Humanity
(Oxford University Press, 2003)This chapter discusses socially dependent attributes by providing an example of appreciating two different buildings. It comments on the idea of philosophising about value as it can perhaps be applied to a number of terms ...