Results 1 to 10 of about 49,634 (196)

Which isoplanatic patch size for high angular resolution techniques? [PDF]

open access: yesAdaptive Optics Systems VII, 2020
The isoplanatic patch size is of interest to reach a high performance with an Adaptive Optics system, since the reference star for its calibration should be located in the same isoplanatic domain than the science source. Different techniques and methods have been developed leading to estimations of the isoplanatic patch but all are model-dependent.
Aziz Ziad   +5 more
openaire   +1 more source

On the isoplanatic patch size in High Angular Resolution Techniques [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2019
To reach a high performance with an adaptive optics system, we need a calibration using a reference source. This latter should be located in the same isoplanatic domain as the science source. Different techniques and methods have been developed leading to estimations of the isoplanatic patch but all are model-dependent. We developed a new technique for
Ziad, A.   +3 more
openaire   +1 more source

Formation and evolution of planetary systems: the impact of high-angular resolution optical techniques [PDF]

open access: yesThe Astronomy and Astrophysics Review, 2009
The direct images of giant extrasolar planets recently obtained around several main sequence stars represent a major step in the study of planetary systems. These high-dynamic range images are among the most striking results obtained by the current generation of high angular resolution instruments, which will be superseded by a new generation of ...
Absil, Olivier, Mawet, Dimitri
openaire   +4 more sources

High-angular-resolution stellar imaging with occultations from the Cassini spacecraft – I. Observational technique [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2013
9 pages, 6 ...
Stewart, Paul N.   +4 more
openaire   +2 more sources

The wide-field imaging interferometry testbed: enabling techniques for high angular resolution astronomy [PDF]

open access: yesSPIE Proceedings, 2007
The Wide-Field Imaging Interferometry Testbed (WIIT) was designed to develop techniques for wide-field of view imaging interferometry, using "double-Fourier" methods. These techniques will be important for a wide range of future space-based interferometry missions.
S. A. Rinehart   +10 more
openaire   +1 more source

Emerging experimental and computational methods for studying redox‐regulated structural transitions

open access: yesFEBS Letters, EarlyView.
Redox reactions can reshape proteins and alter how they behave in cells, with important consequences for health and disease. This review explores emerging experimental and computational approaches for discovering these redox‐sensitive protein switches, revealing their structural effects, and predicting their behavior, opening new opportunities to ...
Tasneem Rass   +2 more
wiley   +1 more source

Functional comparison of EncB and EncC cargo proteins in iron storage within the Myxococcus xanthus encapsulin

open access: yesFEBS Letters, EarlyView.
Encapsulins are protein nanocompartments that play an important role in iron storage. In the Myxococcus xanthus encapsulin system, two cargo proteins called EncB and EncC contribute to iron mineralization. Here, we show that EncB and EncC generate iron‐containing minerals with distinct chemical compositions, suggesting that the composition of stored ...
Harry B. McDowell   +2 more
wiley   +1 more source

Intrapatient tumour heterogeneity and clonal evolution in an autopsy study of metastatic salivary gland cancer

open access: yesMolecular Oncology, EarlyView.
Tumour heterogeneity and clonal evolution of metastatic salivary gland cancer were evaluated in two patients with adenoid carcinoma and one patient with myoepithelial carcinoma. Radiology‐guided autopsy enabled multi‐region sampling (total samples n = 149), followed by whole‐genome sequencing and phylogenetic reconstruction (17 tumour samples, 4–7 per ...
Gerben Lassche   +10 more
wiley   +1 more source

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

open access: yesFEBS 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

Low energy high angular resolution neutral atom detection by means of micro-shuttering techniques: the BepiColombo SERENA∕ELENA sensor

open access: yesAIP Conference Proceedings, 2009
11 ...
S. Orsini   +21 more
openaire   +2 more sources

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