Results 71 to 80 of about 993,566 (290)

Synthesising, using, and correcting for telluric features in high-resolution astronomical spectra

, 2010
We present a technique to synthesise telluric absorption and emission features both for in-situ wavelength calibration and for their removal from astronomical spectra. While the presented technique is applicable for a wide variety of optical and infrared
A. Seifahrt, Abrams, Bailey, Brault, Brown, Clough, Clough, Clough, Dlugokencky, Figueira, G. Zängl, Griffin, H. U. Käufl, Hase, Horne, J. L. Bean, Jacquinet-Husson, Jacquinet-Husson, Kenworthy, Kerber, Käufl, Käufl, Käufl, Lallement, M. J. Richter, Miller, Niro, R. Siebenmorgen, Rothman, Rothman, Rousselot, Rucinski, Scott, Scott, Seifahrt, Tashkun, Udem, Vacca, Villanueva, Widemann, Zängl, Zängl   +41 more
core   +1 more source

Spectral Consequences of Deviation from Spherical Composition Symmetry in Type Ia Supernovae [PDF]

, 2001
We investigate the prospects for constraining the maximum scale of clumping in composition that is consistent with observed Type Ia supernova flux spectra.
Daniel Kasen, David Branch, E. Baron, Mazzali P. A., Patat F., R. C. Thomas   +5 more
core   +1 more source

SPECTRAL PROPERTIES OF TWO WATER-SOLUBLE MELANINS [PDF]

Biotechnologia Acta
Aim. The work was purposed to study the spectral properties of two types of water-soluble melanins to clarify the nature of the optical absorption and emission centers in them. Materials and methods.
V.M. Kravchenko, T.V. Beregova, M.Yu. Lositskyi, T.O. Kondratyuk, S.A. Davydenko, E.S. Davydenko, S.S. Davydenko, L.P. Buchatskyi, V.M. Yashchuk   +8 more
doaj   +1 more source

CD47 promotes mitogen‐activated protein kinase and epithelial‐to‐mesenchymal transition molecular programs to drive prometastatic phenotypes in non‐small cell lung cancer

Molecular Oncology, EarlyView.
Beyond its role in immune evasion, this study identified that CD47 drives tumor‐intrinsic signaling in non‐small cell lung cancer (NSCLC). Transcriptomic profiling and functional studies revealed that CD47 regulates cell adhesion, migration, and metastasis through an ERK–EMT signaling axis.
Asa P.Y. Lau, Lilian G. Zhai, Ryunosuke Hoshi, Zackary Rousseau, Abraam Zakhary, Yin Fang Wu, Rola M. Saleeb, Heyu Ni, Kelsie L. Thu   +8 more
wiley   +1 more source

Orbital-resolved Soft X-Ray Spectroscopy in NaV2O5

, 2002
We demonstrate that angle-resolved soft x-ray spectroscopy can resolve absorption by inequivalent oxygen sites and by different orbitals belonging to the same site in NaV2O5.
Callcott, T. A., Chang, G. S., He, J., Lin, L., Mandrus, D., Sales, B. C., Shirley, Eric L., Woods, G. T., Zhang, G. P.   +8 more
core   +1 more source

Raman‐based label‐free microscopic analysis of the pancreas in living zebrafish larvae

FEBS Open Bio, EarlyView.
Forward stimulated Raman scattering (F‐SRS) and epi coherent anti‐Stokes Raman scattering (E‐CARS) allow label‐free discrimination of distinct subcellular structures in the pancreas of living zebrafish larvae. Given the straightforward applicability, we anticipate broad implementation of Raman microscopy in other organs and across various biomedical ...
Noura Faraj, Eline M. F. de Lange, Klaas A. Sjollema, Ben N. G. Giepmans   +3 more
wiley   +1 more source

Full correction of scattering effects by using the radiative transfer theory for improved quantitative analysis of absorbing species in suspensions [PDF]

, 2013
Sample-to-sample photon path length variations that arise due to multiple scattering can be removed by decoupling absorption and scattering effects by using the radiative transfer theory, with a suitable set of measurements.
Steponavicius, Raimundas, Thennadil, Suresh N.   +1 more
core   +1 more source

Polarization‐resolved femtosecond Vis/IR spectroscopy tailored for resolving weak signals in biological samples using minimal sample volume

FEBS Open Bio, EarlyView.
Unique biological samples, such as site‐specific mutant proteins, are available only in limited quantities. Here, we present a polarization‐resolved transient infrared spectroscopy setup with referencing to improve signal‐to‐noise tailored towards tracing small signals. We provide an overview of characterizing the excitation conditions for polarization‐
Clark Zahn, Karsten Heyne
wiley   +1 more source

Analysis of optical magnetoelectric effect in GaFeO_3

, 2009
We study the optical absorption spectra in a polar ferrimagnet GaFeO_3. We consider the E1, E2 and M1 processes on Fe atoms. It is shown that the magnetoelectric effect on the absorption spectra arises from the E1-M1 interference process through the ...
D. N. Astrov, D. N. Astrov, E. L. Bubis, E. L. Bubis, I. E. Dzyaloshinskii, I. E. Dzyaloshinskii, Jun-ichi Igarashi, L. D. Landau, R. Cowan, R. V. Pisarev, R. V. Pisarev, Tatsuya Nagao, V. A. Markelov, V. A. Markelov, W. A. Harrison, Y. F. Popov   +15 more
core   +1 more source

A light‐triggered Time‐Resolved X‐ray Solution Scattering (TR‐XSS) workflow with application to protein conformational dynamics

FEBS Open Bio, EarlyView.
Time‐resolved X‐ray solution scattering captures how proteins change shape in real time under near‐native conditions. This article presents a practical workflow for light‐triggered TR‐XSS experiments, from data collection to structural refinement. Using a calcium‐transporting membrane protein as an example, the approach can be broadly applied to study ...
Fatemeh Sabzian‐Molaei, Fredrik Orädd, Konstantinos Magkakis, Magnus Andersson   +3 more
wiley   +1 more source