Results 111 to 120 of about 475,022 (324)

Interpreting the extended emission around three nearby debris disc host stars

, 2014
Cool debris discs are a relic of the planetesimal formation process around their host star, analogous to the solar system's Edgeworth-Kuiper belt. As such, they can be used as a proxy to probe the origin and formation of planetary systems like our own ...
Augereau, J. -C., Booth, M., Eiroa, C., Ertel, S., Kennedy, G. M., Kirchschlager, F., Marshall, Jonathan P., Matthews, B., Montesinos, B., Wolf, S.   +9 more
core   +1 more source

Simultaneous multiple-emitter fitting for single molecule super-resolution imaging

Biomedical Optics Express, 2011
Single molecule localization based super-resolution imaging techniques require repeated localization of many single emitters. We describe a method that uses the maximum likelihood estimator to localize multiple emitters simultaneously within a single, two-dimensional fitting sub-region, yielding an order of magnitude improvement in the tolerance of the
Huang, Fang, Schwartz, Samantha L., Byars, Jason M., Lidke, Keith A.   +3 more
openaire   +2 more sources

A Revisited Half-Quadratic Approach for Simultaneous Robust Fitting of Multiple Curves [PDF]

, 2008
In this paper, we address the problem of robustly recovering several instances of a curve model from a single noisy data set with outliers. Using M-estimators revisited in a Lagrangian formalism, we derive an algorithm that we call Simultaneous Multiple Robust Fitting (SMRF), which extends the classical Iterative Reweighted Least Squares algorithm ...
Tarel, Jean Philippe, Charbonnier, Pierre, Ieng, Sio Song   +2 more
openaire   +2 more sources

AAA+ protein unfoldases—the Moirai of the proteome

FEBS Letters, EarlyView.
AAA+ unfoldases are essential molecular motors that power protein degradation and disaggregation. This review integrates recent cryo‐electron microscopy (cryo‐EM) structures and single‐molecule biophysical data to reconcile competing models of substrate translocation.
Stavros Azinas, Marta Carroni
wiley   +1 more source

Comprehensive magnetotransport characterization of two dimensional electron gas in AlGaN/GaN high electron mobility transistor structures leading to the assessment of interface roughness

AIP Advances, 2014
Magnetotransport in two distinct AlGaN/GaN HEMT structures grown by Molecular Beam Epitaxy (MBE) on Fe-doped templates is investigated using Shubnikov de-Haas Oscillations in the temperature range of 1.8–6 K and multicarrier fitting in the temperature ...
Manna Kumari Mishra, Rajesh K. Sharma, Rachna Manchanda, Rajesh K. Bag, Om Prakash Thakur, Rangarajan Muralidharan   +5 more
doaj   +1 more source

Degradation mechanism of the von Willebrand factor A2 domain by nattokinase

FEBS Letters, EarlyView.
Nattokinase, a natto‐derived protease, exhibits potent antithrombotic effects. This study demonstrates that nattokinase directly cleaves the von Willebrand factor (vWF) A2 domain in vitro. Unlike the native regulator ADAMTS13, nattokinase degrades folded vWF independently of shear stress.
Ryuichi Hyakumoto, Masatomo So, Ayako Furukawa, Kenji Sugase   +3 more
wiley   +1 more source

Virtual Object Replacement Based on Real Environments: Potential Application in Augmented Reality Systems

Applied Sciences, 2019
Augmented reality (AR) is an emerging technology that allows users to interact with simulated environments, including those emulating scenes in the real world.
Yu-Shan Chen, Chi-Ying Lin
doaj   +1 more source

New limits on "odderon" amplitudes from analyticity constraints

, 2006
In studies of high energy $pp$ and $\bar pp$ scattering, the odd (under crossing) forward scattering amplitude accounts for the difference between the $pp$ and $\bar pp$ cross sections. Typically, it is taken as $f_-=-\frac{p}{4\pi}Ds^{\alpha-1}e^{i\pi(1-
D. Joynson, E. R. Berger, K. Igi, Kyungsik Kang, L. Lukaszuk, Martin M. Block, T. Berndt   +6 more
core   +2 more sources

Infrared laser sampling of low volumes combined with shotgun lipidomics reveals lipid markers in palatine tonsil carcinoma

Molecular Oncology, EarlyView.
Nanosecond infrared laser (NIRL) low‐volume sampling combined with shotgun lipidomics uncovers distinct lipidome alterations in oropharyngeal squamous cell carcinoma (OPSCC) of the palatine tonsil. Several lipid species consistently differentiate tumor from healthy tissue, highlighting their potential as diagnostic markers.
Leonard Kerkhoff, Manuela Moritz, Dennis Eggert, Anna Worthmann, Joerg Heeren, Henrike Zech, Till S. Clauditz, Waldemar Wilczak, Hartmut Schlüter, Christian S. Betz, Arne Böttcher, Jan Hahn   +11 more
wiley   +1 more source

A framework for simultaneous fit of QCD and BSM parameters with xFitter

The European Physical Journal C
AbstractAn extension of the xFitter open-source program for QCD analyses is presented, allowing for a polynomial parameterization of the dependence of physical observables on theoretical parameters. This extension enables simultaneous determination of parton distribution functions (PDFs) and new physics parameters within the framework of the Standard ...
Shen, Xiaomin, Amoroso, Simone, Gao, Jun, Lipka, Katerina, Zenaiev, Oleksandr   +4 more
openaire   +5 more sources