Results 31 to 40 of about 169,728 (265)
X–ray spectroscopy of astrophysical plasmas
Philosophical Transactions of the Royal Society of London. Series A: Mathematical, Physical and Engineering Sciences, 2002 We provide a qualitative review of key X-ray spectral diagnostics of astrophysical plasmas. We begin with a brief discussion of the two major types of equilibria, collisional ionization and photoionization, and then consider the behaviour of hydrogen-like, helium-like, iron L-shell and iron K-shell transitions for these separate cases.
Kahn, Steven M. +3 more
openaire +3 more sources
Second order reflection from crystals used in soft X-ray spectroscopy
Nukleonika, 2015 In this note the ratio of the second to the first order reflection is determined for the KAP and PbSt crystals, for wavelengths corresponding to the Al K-line emission. The source of the radiation was a low-voltage stabilized X-ray tube.
Książek Ireneusz
doaj +1 more source
Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation
FEBS Letters, EarlyView.Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe +3 more
wiley +1 more source
Potential of Clay-Based Geomaterials for Passive Treatment of Brackish and Saline Waters [PDF]
BIO Web of ConferencesThe increasing salinity and water scarcity of water resources are major problems in semi-arid or arid regions. This study examines the possibilities of a hybrid geomaterial based on clay to treat passively water bodies that are brackish or saline made ...
Karbal Abdelbast +6 more
doaj +1 more source
FEBS Letters, EarlyView.Structural and biochemical characterisations show that the planar cell polarity (PCP) protein Inturned harbours a unique PDZ‐like domain that does not bind canonical PDZ‐binding motifs (PBMs) like that of another PCP protein Vangl2. In contrast, the apical‐basal polarity protein Scribble contains four PDZ domains that bind Vangl2, but one PDZ domain ...
Stephan Wilmes +4 more
wiley +1 more source
The Fourth Workshop on Lineshape Code Comparison: Line Merging
Atoms, 2018 For a given set of plasma parameters, along a single series (Lyman, Balmer, etc.) the lines with higher principal quantum number (n) lines get progressively wider, closer to each other, and start merging for a certain critical n.
Spiros Alexiou +3 more
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Surface Roughening of Poly (methyl-methacrylate) Membranes by SF6-Glow-Discharge Plasma Etching
Tikrit Journal of Pure Science, 2023 The (100 μm) thick of high density Polymethylmethacrylate PMMA membranes were prepared by solution cast method and treated by (42 W), low pressure, DC-discharge, SF6-Plasma for different exposure time: 10,30,60 and 80 min.
Mohamad A.K.Ahmed +2 more
doaj +1 more source
Biophysical approaches for studying viral entry
FEBS Letters, EarlyView.Viruses infect all living organisms and have been responsible for major epidemics and pandemics. Their ongoing evolutionary battle with host defenses creates a constant need for improved tools to study viral behavior. Advancing methods to probe viral attachment, fusion, and genome release deepen our understanding of how infections begin and support the
Inbar Yosibash, Raya Sorkin
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Spectroscopic Characterization of Laser Ablated Germanium Plasma
Pakistan Journal of Analytical & Environmental Chemistry, 2021 In the present study, the germanium (Ge) sample has been studied by laser induced breakdown spectroscopy which leads to the formation of plasma plume in the air.
Muhammad Ashraf +4 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 +3 more
wiley +1 more source