Browsing Faculty of Arts and Sciences by Title
Now showing items 67-86 of 24328
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A 15.65-solar-mass black hole in an eclipsing binary in the nearby spiral galaxy M 33
(Nature Research (part of Springer Nature), 2007)Stellar-mass black holes are found in X-ray-emitting binary systems, where their mass can be determined from the dynamics of their companion stars(1-3). Models of stellar evolution have difficulty producing black holes in ... -
A base-excision DNA-repair protein finds intrahelical lesion bases by fast sliding in contact with DNA
(National Academy of Sciences, 2006)A central mystery in the function of site-specific DNA-binding proteins is the detailed mechanism for rapid location and binding of target sites in DNA. Human oxoguanine DNA glycosylase 1 (hOgg1), for example, must search ... -
A Bayesian Nonparametric Approach to Multi-Task Learning for Contextual Bandits in Mobile Health
(2022-06-03)Reinforcement learning algorithms have found utility in a number of digital interventions, such as in mobile health (mHealth), wherein N users are followed and sequentially treated over T timesteps with the aim of optimizing ... -
A Broadband, Background-Free Quarter-Wave Plate Based on Plasmonic Metasurfaces
(American Chemical Society, 2012) -
A Bubbling Nearby Molecular Cloud: Complete Shells in Perseus
(American Astronomical Society, 2011)We present a study of the shells (and bubbles) in the Perseus molecular cloud using the COMPLETE survey large-scale (CO)-C-12(1-0) and (CO)-C-13(1-0) maps. The 12 shells reported here are spread throughout most of the ... -
A Calibrated Defocus Simulator for Research in Passive Ranging
(2022-05-23)Depth from defocus is a prominent area of computer vision research, yet unlike many other areas of the field, there is no dedicated dataset or general library for training and testing depth from defocus applications. As a ... -
A Capitalizing City: Dar Es Salaam and the Emergence of an African Entrepreneurial Elite (C. 1862-2015)
(2018-09-19)A Capitalizing City charts the ways some people of African descent in Dar es Salaam, the commercial and industrial capital of Tanzania, have attempted, historically, to either integrate into the modern capitalist system ... -
A Chandra Observation of the Globular Cluster Terzan 1: The Neutron Star X‐Ray Transient X1732−304 in Quiescence
(American Astronomical Society, 2002) -
A CHANDRA X-RAY OBSERVATORY STUDY OF PSR J1740-5340 AND CANDIDATE MILLISECOND PULSARS IN THE GLOBULAR CLUSTER NGC 6397
(American Astronomical Society, 2010) -
A Chandra X-Ray study of the dense globular cluster Terzan 5
(American Astronomical Society, 2003)We report a Chandra ACIS-I observation of the dense globular cluster Terzan 5. The previously known transient low-mass X-ray binary (LMXB) EXO 1745-248 in the cluster entered a rare high state during our 2000 August ... -
A Chandra X‐Ray Study of the Globular Cluster M80
(American Astronomical Society, 2003) -
A Characteristic Division Between the Fueling of Quasars and Seyferts: Five Simple Tests
(American Astronomical Society, 2009)Given the existence of the M-BH-sigma relation, models of self-regulated black hole (BH) growth require both a fuel supply and concomitant growth of the host bulge to deepen the central potential, or else the system will ... -
A Chrysin Derivative Suppresses Skin Cancer Growth by Inhibiting Cyclin-dependent Kinases
(American Society for Biochemistry and Molecular Biology, 2013)Chrysin (5,7-dihydroxyflavone), a natural flavonoid widely distributed in plants, reportedly has chemopreventive properties against various cancers. However, the anticancer activity of chrysin observed in in vivo studies ... -
A Clock-Phased Sigma Factor Cascade Is Required for Global Circadian Transcriptional Rhythms in Cyanobacteria
(2017-09-07)The circadian clock of the cyanobacterium Synechococcus elongatus PCC 7942 drives oscillations in global mRNA transcript abundances with 24 h periodicity under continuous light conditions. The transcription factor RpaA ... -
A Combinatorial Maf Transcription Factor Code Establishes Synaptic Heterogeneity Critical for Normal Hearing Function
(2023-01-18)Spiral ganglion neuron (SGN) synaptic, functional, and molecular diversity is critical for hearing function. Heterogeneous inner hair cell (IHC)-SGN synapses transduce complex sound information from the ear to the brain. ... -
A COMPLETE Look at the Use of IRAS Emission Maps to Estimate Extinction and Dust Temperature
(American Astronomical Society, 2005)We have created new dust temperature and column density maps of Perseus, Ophiuchus, and Serpens using 60 and 100 mu m data from the Improved Reprocessing of the IRAS Survey ( IRIS) recalibration of Infrared Astronomical ... -
A Computational Approach for Detailed Quantification of Mouse Parenting Behavior
(2022-05-23)A major aim of neuroscience is understanding the brain circuitry underlying observable behaviors. Recently, an increasing number of tools have allowed researchers to investigate brain circuitry in unprecedented ways. ... -
A Computational Approach to Analysis and Control\\of the Mammalian Circadian Oscillator
(2018-05-11)Circadian rhythms, endogenous, entrainable, near-24 h oscillations in metabolism, are a nearly ubiquitous feature of life on Earth. Circadian rhythms function as a feedforward biological control system that reorganizes ... -
A constrained transport scheme for MHD on unstructured static and moving meshes
(Oxford University Press, 2014)Magnetic fields play an important role in many astrophysical systems and a detailed understanding of their impact on the gas dynamics requires robust numerical simulations. Here we present a new method to evolve the ideal ... -
A cool starspot or a second transiting planet in the TrES-1 system?
(EDP Sciences, 2009)Aims. We investigate the origin of a flux increase found during a transit of TrES-1, observed with the HST (Hubble Space Telescope). This feature in the HST light curve cannot be attributed to noise and is supposedly a ...