Results 61 to 70 of about 3,094 (200)

Covalently Mercurated 6‐Phenylcarbazole Residues Promote Hybridization of Triplex‐Forming Oligonucleotides

ChemBioChem, Volume 26, Issue 8, April 14, 2025.
Organomercury derivatives of 6‐phenylcarbazole can stabilize triple helices when placed at the termini of triplex‐forming homothymine oligonucleotides. In some cases, this stabilization could be attributed to direct coordination of a Hg(II) ion to adenine‐N7 or cytosine‐N4.
Dattatraya Uttam Ukale, Tuomas Lönnberg
wiley   +1 more source

Image Instabilities and Polarization Crosstalk

The Astrophysical Journal
We expand on our previous study of the impact of atmospheric seeing on polarization crosstalk, and show how the formalism that was developed in that work can be applied to treat the case of spatial modulators of polarization.
R. Casini, A. G. de Wijn
doaj   +1 more source

The Myotubularin Related Proteins and the Untapped Interaction Potential of Their Disordered C‐Terminal Regions

Proteins: Structure, Function, and Bioinformatics, Volume 93, Issue 4, Page 831-854, April 2025.
ABSTRACT Intrinsically disordered regions (IDRs) of proteins remain understudied with enigmatic sequence features relevant to their functions. Members of the myotubularin‐related protein (MTMR) family contain uncharacterized IDRs. After decades of research on their phosphatase activity, recent work on the C‐terminal IDRs of MTMR7 revealed new ...
Daniel Saar, Caroline L. E. Lennartsson, Philip Weidner, Elke Burgermeister, Birthe B. Kragelund   +4 more
wiley   +1 more source

Spectropolarimetry of Infant Supernovae

, 2019
The explosion process of supernova is so dominant that the ejecta wipe out almost all traces of the pre-explosion configuration within a few days. Conventional photometry or spectroscopy provide limited information on the structures of the circumstellar ...
Yang, Yi (5261764), Yang, Yi
core   +1 more source

A First Global Full-vector Coronal Magnetic Field Inference Using MLSO CoMP and UCoMP Observations

The Astrophysical Journal Letters
Building on recent advances in coronal spectropolarimetry, seismology, and magnetic-field inferences of Z. Yang et al. (2024) and A. R. Paraschiv (2026), we present the first application of the CLEDB IQUD inversion methodology to Mauna Loa Solar ...
Alin Razvan Paraschiv, Zihao Yang, Daniela Adriana Lacatus, Momchil Molnar   +3 more
doaj   +1 more source

Solar disk integration polarimeter: An automated disk‐integration full‐Stokes‐vector solar feed for the Potsdam Echelle Polarimetric and Spectroscopic Instrument spectrograph

Astronomische Nachrichten, Volume 345, Issue 6-7, July-August 2024.
Abstract We introduce a new solar feed for the PEPSI nighttime spectrograph of the LBT. It enables spectroscopy of the Sun‐as‐a‐star in circular polarization (CP) and linear polarization (LP) with a spectral resolution of 250,000 (≈0.025Å or 600ms−1$$ 600\kern0.1em \mathrm{m}\kern0.1em {\mathrm{s}}^{-1} $$) for the wavelength range 383–907 nm.
Klaus G. Strassmeier, Ilya Ilyin, Manfred Woche, Frank Dionies, Michael Weber, Arto Järvinen, Carsten Denker, Ekaterina Dineva, Meetu Verma, Thomas Granzer, Wilbert Bittner, Svend‐Marian Bauer, Jens Paschke, Hakan Önel   +13 more
wiley   +1 more source

SCExAO/CHARIS Near-infrared Scattered-light Imaging and Integral Field Spectropolarimetry of the AB Aurigae Protoplanetary System

The Astrophysical Journal
We analyze near-infrared integral field spectropolarimetry of the AB Aurigae protoplanetary disk and protoplanet (AB Aur b), obtained with SCExAO/CHARIS in 22 wavelength channels covering the J , H , and K passbands ( λ _0 = 1.1–2.4 μ m) over angular ...
Erica Dykes, Thayne Currie, Kellen Lawson, Miles Lucas, Tomoyuki Kudo, Minghan Chen, Olivier Guyon, Tyler D. Groff, Julien Lozi, Jeffrey Chilcote, Timothy D. Brandt, Sebastien Vievard, Nour Skaf, Vincent Deo, Mona El Morsy, Danielle Bovie, Taichi Uyama, Carol Grady, Michael Sitko, Jun Hashimoto, Frantz Martinache, Nemanja Jovanovic, Motohide Tamura, N. Jeremy Kasdin   +23 more
doaj   +1 more source

Atomic Scale Structure of Self‐Assembled Lipidated Peptide Nanomaterials

Advanced Materials, Volume 36, Issue 24, June 13, 2024.
A bottom‐up theoretical approach is reported to produce the first atomically resolved experimentally consistent model of lipidated β‐peptide nanomaterials. The β‐peptide materials possess long‐term mechanical and chemical stability in vivo, and may be easily decorated with combinations of different biological cues. This unique combination of properties
Billy J. Williams‐Noonan, Ketav Kulkarni, Nevena Todorova, Matteo Franceschi, Christopher Wilde, Mark P. Del Borgo, Louise C. Serpell, Marie‐Isabel Aguilar, Irene Yarovsky   +8 more
wiley   +1 more source

Spectropolarimetry of the 3.4 m Band in the Quintuplet [PDF]

, 2005
We present spectropolarimetry of the 3.4?m solid hydrocarbon absorption feature arising in the ISM toward the Quintuplet member GCS3-II, permitting for the first time a comparison of the hydrocarbon and silicate polarizations in the same line of sight ...
Roche, P.F., Kerr, T.H., Adamson, A.J., Chiar, J.E., Wright, G., Whittet, D.C.B., Hough, J., Mason, R.E., Chrysostomou, A.   +8 more
core   +1 more source

Spiropyran‐Based Photoisomerizable α‐Amino Acid for Membrane‐Active Peptide Modification

Chemistry – A European Journal, Volume 30, Issue 22, April 16, 2024.
A spiropyran‐derived α‐amino acid was carefully designed for the synthesis of photocontrollable bioactive peptides. Dramatic changes in structure and polarity occurring upon light exposure or dark adaptation of the spiropyran side chain can cause changes in the behavior of peptides in lipid membranes and living cells, as demonstrated on spiropyran ...
Andrii Hrebonkin, Sergii Afonin, Anna Nikitjuka, Oleksandr V. Borysov, Gundars Leitis, Oleg Babii, Serhii Koniev, Theo Lorig, Stephan L. Grage, Peter Nick, Anne S. Ulrich, Aigars Jirgensons, Igor V. Komarov   +12 more
wiley   +1 more source