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A Conversation with Ha-Joon Chang
Maha Abdelrahman
Aug 01, 2019
Ha‐Joon Chang is the Director of the Centre of Development Studies and a Reader in the Political Economy of Development in the Faculty of Economics at the University of Cambridge. He grew up in South Korea where he completed his...
Scrutinizing tree-ring parameters for Holocene climate reconstructions
U Büntgen
Apr 01, 2022
Abstract: Independent evidence from Europe and Asia shows that tree‐ring stable isotopes can reveal persistent long‐term hydroclimate trends that are generally not captured by more traditional dendroclimatic studies using...
Impaired HA-specific T follicular helper cell and antibody responses to influenza vaccination are linked to inflammation in humans.
Danika L Hill, Carly E Whyte, Silvia Innocentin, Jia Le Lee, James Dooley, Jiong Wang, Eddie A James, James C Lee, William W Kwok, Martin S Zand, Adrian Liston, Edward J Carr, Michelle Linterman
Nov 02, 2021
Antibody production following vaccination can provide protective immunity to subsequent infection by pathogens such as influenza viruses. However, circumstances where antibody formation is impaired after vaccination, such as in...
2.4-Å structure of the double-ring Gemmatimonas phototrophica photosystem.
Pu Qian, Alastair T Gardiner, Ivana Šímová, Katerina Naydenova, Tristan I Croll, Philip J Jackson, Nupur, Miroslav Kloz, Petra Čubáková, Marek Kuzma, Yonghui Zeng, Pablo Castro-Hartmann, Bart van Knippenberg, Kenneth N Goldie, David Kaftan, Pavel Hrouzek, Jan Hájek, Jon Agirre, C Alistair Siebert, David Bína, Kasim Sader, Henning Stahlberg, Roman Sobotka, Christopher J Russo, Tomáš Polívka, C Neil Hunter, Michal Koblížek
Mar 19, 2022
Phototrophic Gemmatimonadetes evolved the ability to use solar energy following horizontal transfer of photosynthesis-related genes from an ancient phototrophic proteobacterium. The electron cryo-microscopy structure of the...
Copper-NHC-Mediated Semi-Hydrogenation and Hydroboration of Alkynes
Jonathan Hall, Darcy Unson, Paul Brunel, Lee Collins, Mateusz Cybulski, Mary Mahon, Michael Whittlesey
Sep 24, 2018
A series of two-coordinate copper tert-butoxide complexes bearing five-, six-, and seven-membered ring N-heterocyclic carbenes, prepared by protonolysis of (NHC)CuMes with tBuOH, have been used as catalytic precursors in...
Formicamycin biosynthesis involves a unique reductive ring contraction
Zhiwei Qin, Rebecca Devine, Thomas J. Booth, Elliot H. E. Farrar, Matthew N. Grayson, Matthew I. Hutchings, Barrie Wilkinson
Aug 21, 2020
Fasamycin natural products are biosynthetic precursors of the formicamycins. Both groups of compounds are polyketide natural products that exhibit potent antibacterial activity despite displaying different three-dimensional...
Formicamycin biosynthesis involves a unique reductive ring contraction
Zhiwei Qin, Rebecca Devine, Thomas J. Booth, Elliot H. E. Farrar, Matthew N. Grayson, Matthew I. Hutchings, Barrie Wilkinson
Aug 21, 2020
Fasamycin natural products are biosynthetic precursors of the formicamycins. Both groups of compounds are polyketide natural products that exhibit potent antibacterial activity despite displaying different three-dimensional...
Simulation of mechanical stresses in reinforced REBaCuO ring bulks during pulsed-field magnetization
Abstract: We have performed numerical simulations of the electromagnetic, thermal and mechanical properties of a REBaCuO ring-shaped bulk with various reinforcement structures during pulsed-field magnetization (PFM). Compressive...
Lactide polymerisation by ring-expanded NHC complexes of zinc
Lee R. Collins, Louise A. Mofffat, Mary F. Mahon, Matthew D. Jones, Michael K. Whittlesey
Jan 08, 2016
The reaction of the ring-expanded N-heterocyclic carbenes (RE-NHCs) with [ZnMe2] affords the structurally characterised complexes [(6-Mes)ZnMe2] (1) and [(7-Mes)ZnMe2] (2). The activity of the two complexes, along with that of...
Simulation of mechanical stresses in reinforced REBaCuO ring bulks during pulsed-field magnetization
Abstract: We have performed numerical simulations of the electromagnetic, thermal and mechanical properties of a REBaCuO ring-shaped bulk with various reinforcement structures during pulsed-field magnetization (PFM). Compressive...
Lactide polymerisation by ring-expanded NHC complexes of zinc
Lee R. Collins, Louise A. Mofffat, Mary F. Mahon, Matthew D. Jones, Michael K. Whittlesey
Jan 08, 2016
The reaction of the ring-expanded N-heterocyclic carbenes (RE-NHCs) with [ZnMe2] affords the structurally characterised complexes [(6-Mes)ZnMe2] (1) and [(7-Mes)ZnMe2] (2). The activity of the two complexes, along with that of...
Copper-NHC-Mediated Semi-Hydrogenation and Hydroboration of Alkynes
Jonathan Hall, Darcy Unson, Paul Brunel, Lee Collins, Mateusz Cybulski, Mary Mahon, Michael Whittlesey
Sep 24, 2018
A series of two-coordinate copper tert-butoxide complexes bearing five-, six-, and seven-membered ring N-heterocyclic carbenes, prepared by protonolysis of (NHC)CuMes with tBuOH, have been used as catalytic precursors in...
Ring Fault Slip Reversal at Bárðarbunga Volcano, Iceland
Microearthquakes reveal the kinematics of the Bárðarbunga caldera ring fault; during the 2014–2015 rifting event and gradual caldera collapse, and its subsequent, ongoing re-inflation. Tightly constrained focal mechanisms during...
Predicting coffee ring formation upon drying in droplets of particle suspensions.
Pattern formation is a common occurrence in drying colloidal systems. The most common in droplets, is a ring distribution where the constituents have relocated to the edge, which is referred to as a coffee ring. This deposit is...
Trackless ring identification and pattern recognition in Ring Imaging Cherenkov (RICH) detectors
CG Lester
Jan 12, 2010
An algorithm for identifying rings in Ring Imaging Cherenkov (RICH) detectors
is described. The algorithm is necessarily Bayesian and makes use of a
Metropolis-Hastings Markov chain Monte Carlo sampler to locate the rings....
Ring identification and pattern recognition in ring imaging Cerenkov (RICH) detectors.
Christopher G Lester
Jan 27, 2010
An algorithm for identifying rings in Ring Imaging Cherenkov (RICH) detectors is
described. The algorithm is necessarily Bayesian and makes use of a Metropolis-
Hastings Markov chain Monte Carlo sampler to locate the rings. In...
Finite Element Modelling for Failure Prevention of Coated Piston Compression Ring
Finite element simulation using ANSYS software, to analyze the effect of coating layers of different materials on piston compression ring. Similar material properties to that in the actual structural piston-compression-ring were...
Published by: IGI Global Scientific Publishing
Program for the Stage Production Ring Around Elizabeth
Curtain Club
Jan 01, 0001
This four-page program details the Curtain Club of Ursinus College's production of Ring Around Elizabeth, held December 12, 1942 in Thompson-Gay Gymnasium. It includes information about the directors, cast, production of the...
Charl Armstrong Curtain Club Ursinus College theater program Thompson-Gay Gymnasium Theatre and Performance Studies Theatre History
Published by: Ursinus College
A new ring-shape high-temperature superconducting trapped-field magnet
This paper presents a new trapped-field magnet made of second-generation high-temperature superconducting (2G HTS) rings. This so-called ring-shape 2G HTS magnet has the potential to provide much stronger magnetic fields...
Flux jumps in ring-shaped and assembled bulk superconductors during pulsed field magnetization
Abstract: Bulk (RE)BCO, where RE is a rare-earth element or yttrium, superconductors fabricated in the form of rings are potentially useful for a variety of solenoidal-type applications, such as small, high field nuclear...
A new ring-shape high-temperature superconducting trapped-field magnet
This paper presents a new trapped-field magnet made of second-generation high-temperature superconducting (2G HTS) rings. This so-called ring-shape 2G HTS magnet has the potential to provide much stronger magnetic fields...
Ultra-low-threshold InGaN/GaN quantum dot micro-ring lasers.
In this work, we demonstrate ultra-low-threshold, optically pumped, room-temperature lasing in GaN microdisk and micro-ring cavities containing InGaN quantum dots and fragmented quantum wells, with the lowest measured threshold...
A dual lane piezoelectric ring bender actuated nozzle-flapper servo valve for aero engine fuel metering
Michael Bertin, Andrew Plummer, Christopher Bowen, David Johnston, M Griffiths, Dan Bickley
Oct 09, 2019
Amongst many other high performance flow control applications, servo valves are used to control aero engines by metering the fuel delivered from the fuel pump. Conventionally, a fuel metering servo valve has a pilot stage...
aero engine control fluid control fuel metering nozzle-flapper valve piezoelectric ring bender redundant actuation /dk/atira/pure/subjectarea/asjc/1700/1711 name=Signal Processing /dk/atira/pure/subjectarea/asjc/2200/2205 name=Civil and Structural Engineering /dk/atira/pure/subjectarea/asjc/3100/3107 name=Atomic and Molecular Physics, and Optics /dk/atira/pure/subjectarea/asjc/2500/2500 name=General Materials Science /dk/atira/pure/subjectarea/asjc/3100/3104 name=Condensed Matter Physics /dk/atira/pure/subjectarea/asjc/2200/2211 name=Mechanics of Materials /dk/atira/pure/subjectarea/asjc/2200/2208 name=Electrical and Electronic Engineering
Advantage of Coherent States in Ring Resonators over Any Quantum Probe Single-Pass Absorption Estimation Strategy
Quantum states of light have been shown to enhance precision in absorption estimation over classical strategies. By exploiting interference and resonant enhancement effects, we show that coherent-state probes in all-pass ring...
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