Results 81 to 90 of about 4,313 (174)

A proper motion study of the globular cluster M55

, 2011
We have derived the absolute proper motion (PM) of the globular cluster M55 using a large set of CCD images collected with the du Pont telescope between 1997 and 2008. We find (PM_RA*cos(DEC), PM_DEC) = (-3.31 +/- 0.10, -9.14 +/- 0.15) mas/yr relative to
Anderson, Bellini, Clement, Dinescu, Dinescu, Harris, I. B. Thompson, Ibata, Ibata, J. Kaluzny, K. Zloczewski, Kaluzny, Kaluzny, Lanzoni, Mateo, Montalto, Olech, Peng, Platais, Platais, Pryor, Pych, Sollima, Stetson, Yadav, Zacharias   +25 more
core   +1 more source

Sudan at War With Itself: Civilian Devastation in the Civil War

Conflict Resolution Quarterly, EarlyView.
ABSTRACT A civil war is raging in Sudan between the Sudan Armed Forces (SAF) and the Rapid Support Forces (RSF) along with militia groups. Beginning on April 15, 2023, and continuing at least to this writing (October 15, 2025), civilian noncombatants have been subjected to bombings, beatings, torture, shootings, rape, and murder on a large scale. Since
Daniel Rothbart, Bayan Abubakr, Beltina Gjeloshi, Dieter Pfoser   +3 more
wiley   +1 more source

Geometric Optimization of Passive High‐Frequency Electromagnetic Shielding Structures Based on Finite Element Analysis and Deep Learning

Energy Science &Engineering, EarlyView.
1. Finite element analysis applied to structural optimization of concentric ring electromagnetic shielding structure. 2. DBN‐BP machine learning algorithm applied to the establishment of structural optimization programs. ABSTRACT The proliferation of high‐frequency wireless power transfer (WPT) technology in smart grid applications—particularly dynamic
Yuanhuang Liu, Tianchu Li, Ming Fang, Boyu Xing   +3 more
wiley   +1 more source

Mergers of close primordial binaries

, 2005
We study the production of main sequence mergers of tidally-synchronized primordial short-period binaries. The principal ingredients of our calculation are the angular momentum loss rates inferred from the spindown of open cluster stars and the ...
Ahumada J., D. M. Terndrup, de Kool M., de la Fuente Marcos R., Duquennoy A., Kaluzny J., Kaluzny J., Keppens R., Lapasset E., M. H. Pinsonneault, McCrea W. H., Mermilliod J. C., N. Andronov, Rucinski S. M., Spite F., Stepien K., Vant Veer F., Vilhu O., Zahn J.-P.   +18 more
core   +1 more source

Ferrimagnetic Vortex Nanorings Facilitate Efficient and Safe Deep‐Brain Magnetothermal Stimulation in Freely Moving Mice

Exploration, EarlyView.
Magnetothermal neuromodulation is greatly hindered by its long stimulus‐response time and high safety risks due to the poor heat‐generating performance of the nanomediators. We report the establishment of a novel ferrimagnetic vortex iron oxide nanoring (FVIO)‐mediated efficient and safe magnetothermal neurostimulation.
Galong Li, Xin Qiao, Yu Zhao, Dongyan Li, Guigen Zhang, Xiaoli Liu, Fulin Chen, Huaning Wang, Hongbing Lu, Jin Zhou, Changyong Wang, Haiming Fan   +11 more
wiley   +1 more source

A prototype submersible sheathless flow cytometer designed for autonomous platforms

Limnology and Oceanography: Methods, EarlyView.
Abstract Development of submersible flow cytometers has allowed for continuous, in situ measurements of natural assemblages of phytoplankton cells. Here we introduce DeepCyte, a sensitive prototype submersible flow cytometer developed for deployment on autonomous platforms.
J. E. Swalwell, K. Cain, E. V. Armbrust
wiley   +1 more source

Star Formation History and Chemical Evolution of the Sextans Dwarf Spheroidal Galaxy

, 2009
We present the star formation history and chemical evolution of the Sextans dSph dwarf galaxy as a function of galactocentric distance. We derive these from the $VI$ photometry of stars in the $42' \times 28'$ field using the SMART model developed by Yuk
Carrea, Da Costa, Demarque, Dennis Zaritsky, Dolphin, Fenner, Geisler, Harbeck, Hong Soo Park, In-Soo Yuk, Irwin, Irwin, Jason Harris, Kawata, Komatsu, Lee, Matteucci, Matteucci, Myung Gyoon Lee, Ricotti, Rizzi, Shetrone, Shetrone, Sills, Tolstoy, Tolstoy, Yi, Yuk   +27 more
core   +2 more sources

Ocean acidification at the crossroads I: Harmonizing unpurified and purified meta‐cresol purple spectrophotometric pHT measurements based on absorbance data

Limnology and Oceanography: Methods, EarlyView.
Abstract Consistent monitoring of seawater spectrophotometric pH on the total hydrogen ion scale (pHT) has been questioned by an evolving method, with changes in parameterization and the purity of the meta‐cresol purple (mCP). Using real seawater samples, we demonstrate that spectrophotometric pHT measurements obtained with unpurified (UNPUR) and ...
Marta Álvarez, Maribel I. García‐Ibáñez, Rubén Acerbi, Rocío Santiago‐Domenech, Elisa F. Guallart, Noelia M. Fajar, Lisandro Arbilla   +6 more
wiley   +1 more source

Metasurfaces in Adaptive Optics: A New Opportunity in Optical Wavefront Sensing

Laser &Photonics Reviews, EarlyView.
Wavefront sensing constitutes a critical component of adaptive optics systems, aimed at quantitatively measuring distorted wavefronts and enabling closed‐loop correction in optical setups. Metasurfaces, as planar optical elements composed of nanoscale structures, provide exceptional freedom in modulating multiple dimensions of the light field.
Rundong Fan, Zichao Wang, Pei Li, Lei Huang   +3 more
wiley   +1 more source

Predator density outweighs experimental warming effects on short‐term carbon and nitrogen loss from arctic shrub litter

Oikos, EarlyView.
Rapid climate change in the Arctic is altering biological communities and their subsequent effects on ecosystem functioning. For example, warming‐induced shrub expansion accelerates biogeochemical cycles in part by increasing high‐quality litter inputs.
Nevo Sagi, Anna M. Cress, Jennie R. McLaren, Amanda M. Koltz   +3 more
wiley   +1 more source