Browsing MIT Open Access Articles by Title
Now showing items 31602-31621 of 55730
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The Most Metal-Poor Stars. II. Chemical Abundances of 190 Metal-Poor Stars Including 10 New Stars With [Fe/H] ≤ -3.5
(IOP Publishing, 2012-12)We present a homogeneous chemical abundance analysis of 16 elements in 190 metal-poor Galactic halo stars (38 program and 152 literature objects). The sample includes 171 stars with [Fe/H] ≤ –2.5, of which 86 are extremely ... -
The Most Metal-Poor Stars. III. The Metallicity Distribution Function and CEMP Fraction
(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, ... -
The Most Metal-Poor Stars. IV. The Two Populations With [Fe/H] [< over ~] -3.0
(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 ... -
Most odd degree hyperelliptic curves have only one rational point
(Princeton University Press, 2014-11)Consider the smooth projective models C of curves y [superscript 2] = f(x) with f(x) ∈Z[x] monic and separable of degree 2g+1. We prove that for g ≥ 3, a positive fraction of these have only one rational point, the point ... -
Most parsimonious reconciliation in the presence of gene duplication, loss, and deep coalescence using labeled coalescent trees
(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 ... -
MOST-GAN: 3D Morphable StyleGAN for Disentangled Face Image Manipulation
(Association for the Advancement of Artificial Intelligence (AAAI), 2022)<jats:p>Recent advances in generative adversarial networks (GANs) have led to remarkable achievements in face image synthesis. While methods that use style-based GANs can generate strikingly photorealistic face images, it ... -
Mostly Automated Formal Verification of Loop Dependencies with Applications to Distributed Stencil Algorithms
(Springer Netherlands, 2018-02-14)Abstract The class of stencil programs involves repeatedly updating elements of arrays according to fixed patterns, referred to as stencils. Stencil problems are ubiquitous in scientific computing and are ... -
Mostly natural sequencing-by-synthesis for scRNA-seq using Ultima sequencing
(Springer Science and Business Media LLC, 2022)<jats:title>Abstract</jats:title><jats:p>Here we introduce a mostly natural sequencing-by-synthesis (mnSBS) method for single-cell RNA sequencing (scRNA-seq), adapted to the Ultima genomics platform, and systematically ... -
MoS₂ Enhanced T-Phase Stabilization and Tunability Through Alloying
(American Chemical Society (ACS), 2016-05)Two-dimensional MoS₂ is a promising material for nanoelectronics and catalysis, but its potential is not fully exploited since proper control of its multiple phases (H, T, ZT) and electronic properties is lacking. In this ... -
Mother-tongue books in Haiti: The power of Kreyòl in learning to read and in reading to learn
(Springer Netherlands, 2017-03)This article aims at a deeper understanding of the importance of native languages in education and development, with Haiti as a case study. About half of Haiti’s population is illiterate. Among ten children who enter the ... -
Mothers, Fathers, and Student Loans: Contributing Factors of Familial Conflict Among Parents Repaying Student Loan Debt for Children
(Springer Science and Business Media LLC, 2021-05-06)Abstract As college costs rise in the United States, many parents are forced to make difficult decisions about how to pay for their children’s higher education. Stress and conflict accompany financial issues ... -
Mothers, Fathers, and Student Loans: Contributing Factors of Familial Conflict Among Parents Repaying Student Loan Debt for Children
(Springer Science and Business Media LLC, 2021-05-06)Abstract As college costs rise in the United States, many parents are forced to make difficult decisions about how to pay for their children’s higher education. Stress and conflict accompany financial issues ... -
Motif Discovery in Physiological Datasets: A Methodology for Inferring Predictive Elements
(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 ... -
Motility of Different Gastric Helicobacter spp.
(Multidisciplinary Digital Publishing Institute, 2023-03-01)<i>Helicobacter</i> spp., including the well-known human gastric pathogen <i>H. pylori</i>, can cause gastric diseases in humans and other mammals. They are Gram-negative bacteria that colonize the gastric epithelium and ... -
Motion Aftereffects Transfer between Touch and Vision
(Elsevier B.V., 2009-05)Current views on multisensory motion integration assume separate substrates where visual motion perceptually dominates tactile motion 1 and 2. However, recent neuroimaging findings demonstrate strong activation of visual ... -
Motion and Sash Height (MASH) alarms for efficient fume hood use
(Springer Science and Business Media LLC, 2021-12)Ventilation, including fume hoods, consumes 40–70% of the total energy used by modern laboratories. Energy-conscious fume hood usage—for example, closing the sash when a hood is unused—can significantly reduce energy ... -
Motion and Sash Height (MASH) alarms for efficient fume hood use
(Springer Science and Business Media LLC, 2021-12)Ventilation, including fume hoods, consumes 40–70% of the total energy used by modern laboratories. Energy-conscious fume hood usage—for example, closing the sash when a hood is unused—can significantly reduce energy ... -
Motion blur removal with orthogonal parabolic exposures
(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 ... -
Motion characteristics of the vertebral segments with lumbar degenerative spondylolisthesis in elderly patients
(Springer-Verlag, 2012-08)Objective Although some studies have reported on the kinematics of the lumbar segments with degenerative spondylolisthesis (DS), few data have been reported on the in vivo 6 degree-of-freedom kinematics of different ... -
Motion denoising with application to time-lapse photography
(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. ...
