Browsing by Title
Now showing items 45056-45075 of 56883
-
The rotating molecular structures and the ionized outflow associated with IRAS 16547-4247
(IOP Publishing, 2009)We present Very Large Array 1.3 cm radio continuum and water maser observations as well as Submillimeter Array SO 2 (226.300 GHz) and 1.3 mm dust continuum observations toward the massive star formation region IRAS 16547−4247. ... -
Rotating Night Shift Work and Risk of Type 2 Diabetes: Two Prospective Cohort Studies in Women
(Public Library of Science, 2011)Background: Rotating night shift work disrupts circadian rhythms and has been associated with obesity, metabolic syndrome, and glucose dysregulation. However, its association with type 2 diabetes remains unclear. Therefore, ... -
Rotating Night Shifts and Risk of Breast Cancer in Women Participating in the Nurses' Health Study
(2001)Background: Melatonin shows potential oncostatic action, and light exposure during night suppresses melatonin production. There is little information, however, about the direct effect of night work on the risk of cancer. ... -
Rotating shift work and menstrual cycle characteristics
(Lippincott, Williams & Wilkins, 2011)Background: Shift workers who experience sleep disturbances and exposure to light at night could be at increased risk for alterations in physiologic functions that are circadian in nature. Methods: We investigated rotating ... -
Rotating waves during human sleep spindles organize global patterns of activity that repeat precisely through the night
(eLife Sciences Publications, Ltd, 2016)During sleep, the thalamus generates a characteristic pattern of transient, 11-15 Hz sleep spindle oscillations, which synchronize the cortex through large-scale thalamocortical loops. Spindles have been increasingly ... -
The Rotation and Galactic Kinematics of Mid M Dwarfs in the Solar Neighborhood
(American Astronomical Society, 2016)Rotation is a directly observable stellar property, and it drives magnetic field generation and activity through a magnetic dynamo. Main-sequence stars with masses below approximately 0.35 ${M}_{\odot }$ (mid-to-late M ... -
Rotation and internal structure of Population III protostars
(Oxford University Press, 2013)We analyse the cosmological simulations performed in the recent work of Greif et al., which followed the early growth and merger history of Population III (Pop III) stars while resolving scales as small as 0.05 R-circle ... -
A Rotation in Contemporary Legal Scholarship
(German Law Journal, 2011) -
The Rotation Period and Magnetic Field of the T Dwarf 2massi J1047539+212423 Measured From Periodic Radio Bursts
(IOP Publishing, 2015)Periodic radio bursts from very low mass stars and brown dwarfs simultaneously probe their magnetic and rotational properties. The brown dwarf 2MASSI J1047539+212423 (2M 1047+21) is currently the only T dwarf (T6.5) detected ... -
Rotation speed of the first stars
(Oxford University Press, 2011)We estimate the rotation speed of Population III (Pop III) stars within a minihalo at z similar to 20 using a smoothed particle hydrodynamics (SPH) simulation, beginning from cosmological initial conditions. We follow the ... -
Rotation Tracking of Genome-Processing Enzymes Using DNA Origami Rotors
(Springer Science and Business Media LLC, 2019-07-17)Many genome-processing reactions, including transcription, replication and repair, generate DNA rotation. Methods that directly measure DNA rotation, such as rotor bead tracking angular optical trapping and magnetic tweezers, ... -
Rotational and Vibrational Excitation of CO Molecules by Collisions with 4 He Atoms
(IOP Publishing, 2002)Full close-coupled calculations are carried out of the cross sections for energy transfer between rotational levels of carbon monoxide in collision with 4He atoms with energies between 5 and 600 cm-1. At low energies, the ... -
Rotational State Microwave Mixing for Laser Cooling of Complex Diatomic Molecules
(American Physical Society (APS), 2015)We demonstrate the mixing of rotational states in the ground electronic state using microwave radiation to enhance optical cycling in the molecule yttrium (II) monoxide (YO). This mixing technique is used in conjunction ... -
Rotational Variability of Earth's Polar Regions: Implications for Detecting Snowball Planets
(American Astronomical Society, 2011)We have obtained the first time-resolved, disk-integrated observations of Earth's poles with the Deep Impact spacecraft as part of the EPOXI mission of opportunity. These data mimic what we will see when we point next-generation ... -
Roughing Up Smoothened: Chemical Modulators of Hedgehog Signaling
(BioMed Central, 2002)Small-molecule antagonists of Hedgehog-pathway signaling, such as cyclopamine, have been known for some time. Now, small-molecule agonists of the Hedgehog pathway have also been identified. The finding that both antagonists ... -
Round-window delivery of neurotrophin 3 regenerates cochlear synapses after acoustic overexposure
(Nature Publishing Group, 2016)In acquired sensorineural hearing loss, such as that produced by noise or aging, there can be massive loss of the synaptic connections between cochlear sensory cells and primary sensory neurons, without loss of the sensory ... -
Roundtable Debate: Controversies in the Management of the Septic Patient – Desperately Seeking Consensus
(BioMed Central, 2005)Despite continuous advances in technologic and pharmacologic management, the mortality rate from septic shock remains high. Care of patients with sepsis includes measures to support the circulatory system and treat the ... -
Roundtable discussion on the Third Global Symposium on Health Systems Research: why prioritise talk over aid in the midst of the Ebola crisis?
(BioMed Central, 2015)Health systems experts from around the world discuss why they were meeting at the Third Global Symposium on Health Systems Research while people were dying of Ebola in West Africa. -
Roundup 2.0: Enabling Comparative Genomics for over 1800 Genomes
(Oxford University Press, 2012)Summary: Roundup is an online database of gene orthologs for over 1800 genomes, including 226 Eukaryota, 1447 Bacteria, 113 Archaea, and 21 Viruses. Orthologs are inferred using the Reciprocal Smallest Distance algorithm. ... -
The Route of HIV Escape from Immune Response Targeting Multiple Sites Is Determined by the Cost-Benefit Tradeoff of Escape Mutations
(Public Library of Science, 2014-08-05)Cytotoxic T lymphocytes (CTL) are a major factor in the control of HIV replication. CTL arise in acute infection causing escape mutations to spread rapidly through the population of infected cells. As a result, the virus ...