Results 131 to 140 of about 13,091 (256)

Rapid RASER MRI

Angewandte Chemie International Edition, EarlyView.
Rapid RASER MRI allows for image acquisition without RF excitation. Instead, a population inversion on the nuclear spins is generated by SABRE hyperpolarization, which allows for self‐excitation through the RASER approach. When the desired transverse magnetization is built‐up, conventional EPI encoding is triggered to record the image.
Sören Lehmkuhl, Simon Fleischer, Jing Yang, Eduard Y. Chekmenev, Thomas Theis, Stephan Appelt, Jan G. Korvink, Mazin Jouda   +7 more
wiley   +1 more source

Spectroscopic and asteroseismic analysis of the remarkable main-sequence A star KIC 11145123 [PDF]

, 2017
A spectroscopic analysis was carried out to clarify the properties of KIC 11145123 -- the first main-sequence star with a determination of core-to-surface rotation -- based on spectra observed with the High Dispersion Spectrograph (HDS) of the Subaru ...
Kurtz, Donald W., Murphy, Simon J., Saio, Hideyuki, Sekii, Takashi, Shibahashi, Hiromoto, Takada-Hidai, Masahide, Takata, Masao   +6 more
core   +2 more sources

Search for blue straggler stars in open clusters from the VVV survey (preliminary result)

Journal of Physics: Conference Series, 2019
Blue straggler stars (BSS) are a group of stars that are found within some stellar clusters through their color-magnitude diagrams (CMDs). The BSS are located on the upper-part of the CMD’s tum-off (TO) point along the zero-age main sequence (ZAMS) line.
S. Amalina, M. I. Arifyanto
semanticscholar   +1 more source

Commissioning an Inexpensive Off‐The‐Shelf Spectrograph for Radial‐Velocity Studies

Astronomische Nachrichten, EarlyView.
ABSTRACT We present a way to set up an inexpensive out of the shelf spectrograph at a local observatory. Stability and resolution of the spectrograph are high enough for radial velocity determination of binary stars or determination of stellar characteristics. Even some exoplanets might be detectable via the radial velocity method.
Lukas Stock, Andreas Schrimpf
wiley   +1 more source

The impacts of biological invasions

Biological Reviews, EarlyView.
ABSTRACT The Anthropocene is characterised by a continuous human‐mediated reshuffling of the distributions of species globally. Both intentional and unintentional introductions have resulted in numerous species being translocated beyond their native ranges, often leading to their establishment and subsequent spread – a process referred to as biological
Phillip J. Haubrock, Teun Everts, Neil Angelo S. Abreo, Jamie Bojko, Victor Deklerck, James W. E. Dickey, Ana Clara S. Franco, Emili García‐Berthou, Stelios Katsanevakis, Natalia I. Kirichenko, Stefano Mammola, Martin A. Nuñez, Ben Parker, Riccardo Scalera, Ismael Soto, Diederik Strubbe, Ali Serhan Tarkan, Lorenzo Vilizzi, Tim Adriaens, Paride Balzani, Dagmara Błońska, Elizabeta Briski, Rein Brys, Amy L. Burgess, James E. Byers, Carlos Cano‐Barbacil, Giuseppe Castaldelli, Jaimie T.A. Dick, Victoria Dominguez Almela, Romina D. Dimarco, Margarita Florencio, Antonín Kouba, Melina Kourantidou, Irmak Kurtul, Irene Martín‐Forés, Olivier Morissette, Julian D. Olden, Bruno E. Soares, Jakub Truszkowski, Hugo Verreycken, Marc Kenis, Ronaldo Sousa, J. Robert Britton   +42 more
wiley   +1 more source

UOCS. XIII. Study of the Far-ultraviolet Bright Stars in the Open Cluster NGC 2420 Using AstroSat

The Astrophysical Journal
We present the study of four far-ultraviolet (FUV) bright stars in the field of the open cluster NGC 2420 using the Ultra Violet Imaging Telescope mounted on AstroSat.
R. K. S. Yadav, Arvind K. Dattatrey, Geeta Rangwal, Annapurni Subramaniam, D. Bisht, Ram Sagar   +5 more
doaj   +1 more source

Structural Aspects of Lithium‐Ion Conduction in the Phosphidotitanate Li8TiP4 and Its Comparison With Li7+5xTa1−xP4 and Li8−xTi1−xTaxP4

Chemistry – A European Journal, EarlyView.
ABSTRACT The chemical system Li/Ti/P has previously been subject to intensive investigation. However, reliable structural data for the reported phases have remained elusive. Motivated by the growing interest in phosphorus‐based lithium‐ion conductors, we have reinvestigated the synthesis, crystal structure, and physical properties of Li8TiP4.
David Müller, Tobias Kutsch, Sabine Zeitz, Viktor Hlukhyy, Gabriele Raudaschl‐Sieber, Wilhelm Klein, Thomas F. Fässler   +6 more
wiley   +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

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

Nanoparticles in microdroplets: Recent advances in microfluidic generators for producing functional microbeads

Droplet, EarlyView.
Functional hybrid microbeads with electrical, magnetic, and/or optical responsiveness have emerged as versatile platforms for biotechnology. This review highlights recent advances in microfluidic technologies for producing such microbeads, with a focus on incorporating functional nanoparticles in microdroplet systems.
  Bayinqiaoge, Chengchen Zhang, Shi‐Yang Tang   +2 more
wiley   +1 more source