Results 41 to 50 of about 10,336,803 (378)

Site Selective and Efficient Spin Labeling of Proteins with a Maleimide-Functionalized Trityl Radical for Pulsed Dipolar EPR Spectroscopy

Molecules, 2019
Pulsed dipolar electron paramagnetic resonance spectroscopy (PDS) in combination with site-directed spin labeling (SDSL) of proteins and oligonucleotides is a powerful tool in structural biology.
J. Jacques Jassoy, Caspar A. Heubach, Tobias Hett, Frédéric Bernhard, Florian R. Haege, Gregor Hagelueken, Olav Schiemann   +6 more
doaj   +1 more source

Normal Distance Measurements Between the Origins of the Major Branches of the Abdominal Aorta on Computed Tomography Angiography in Children

Namık Kemal Tıp Dergisi, 2022
Aim:The aim of the present study was to determine the normal distances between the origins of the major branches of the abdominal aorta, and their distances to the aorta at the diaphragmatic region and iliac bifurcation on multidetector computed ...
Edis ÇOLAK
doaj   +1 more source

The Influence of a Photometric Distance on Luminance Measurements

Energies, 2023
Luminance measurements are the least frequent of all photometric measurements. This article characterizes and systematizes the various methods of luminance measurement.
Dariusz Czyżewski
doaj   +1 more source

The distance to the Fornax Dwarf Spheroidal Galaxy [PDF]

, 2007
A large multicolour, wide-field photometric database of the Fornax dwarf spheroidal galaxy has been analysed using three different methods to provide revised distance estimates based on stellar populations in different age intervals.
Aaronson, Aaronson, Azzopardi, Battaglia, Bellazzini, Bellazzini, Bersier, Bersier, Buonanno, Buonanno, Cacciari, Carretta, Carretta, Cole, Da Costa, Demers, E. V. Held, Ferraro, Ferraro, Girardi, Girardi, Greco, Greco, Gullieuszik, I. Saviane, L. Rizzi, Landolt, Lee, M. Gullieuszik, Makarov, Méndez, Paczynski, Pietrzyński, Pietrzyński, Pont, R. B. Tully, Rizzi, Rizzi, Rocha-Pinto, Rocha-Pinto, Sakai, Saviane, Schlegel, Stanek, Stetson, Stetson, Stone, Tolstoy, Tolstoy, Udalski, Udalski, Udalski, Udalski, Udalski, Valdes, Zinn   +55 more
core   +1 more source

Experimental Study of Silent Sonar

Archives of Acoustics, 2014
Stealth is a frequent requirement in military applications and involves the use of devices whose signals are difficult to intercept or identify by the enemy.
Jacek MARSZAL
doaj   +1 more source

Can molecular motors drive distance measurements in injured neurons? [PDF]

PLoS Computational Biology, 2009
Injury to nerve axons induces diverse responses in neuronal cell bodies, some of which are influenced by the distance from the site of injury. This suggests that neurons have the capacity to estimate the distance of the injury site from their cell body ...
Naaman Kam, Yitzhak Pilpel, Mike Fainzilber   +2 more
doaj   +1 more source

The Infrared Surface Brightness Fluctuation Distances to the Hydra and Coma Clusters [PDF]

, 1998
We present IR surface brightness fluctuation (SBF) distance measurements to NGC 4889 in the Coma cluster and to NGC 3309 and NGC 3311 in the Hydra cluster.
Casali M., Feast M. W., Gerard A. Luppino, John L. Tonry, Joseph B. Jensen, Wainscoat R.   +5 more
core   +2 more sources

The Use of Gamma-ray Bursts as Direction and Time Markers in SETI Strategies [PDF]

, 1999
When transmitting a signal over a large distance it is more efficient to send a brief beamed signal than a continuous omni-directional transmission but this requires that the receiver knows where and when to look for the transmission.
Barthelmy S. D., Gehrels N., Gruber G. M., McLaughlin W. I., Pace G. W., Perryman M. A. C., Robin H. D. Corbet, Siebrand W. J., Smith D. A., Tang T. B., Tang T. B.   +10 more
core   +3 more sources

A Thorough Investigation of Distance and Age of the Pulsar Wind Nebula 3C58 [PDF]

, 2013
A growing number of researchers present evidence that the pulsar wind nebula 3C58 is much older than predicted by its proposed connection to the historical supernova of A.D. 1181. There is also a great diversity of arguments.
Kothes, Roland
core   +1 more source

Dielectric metasurfaces for distance measurements and three-dimensional imaging

Advanced Photonics, 2019
. Ultrathin metasurfaces have shown the capability to influence all aspects of light propagation. This has made them promising options for replacing conventional bulky imaging optics while adding advantageous optical properties or functionalities.
Chunqi Jin, M. Afsharnia, R. Berlich, S. Fasold, C. Zou, D. Arslan, I. Staude, T. Pertsch, F. Setzpfandt   +8 more
semanticscholar   +1 more source