Results 41 to 50 of about 2,744,172 (310)

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., Behar, Ehud, Kinkhabwala, Ali, Savin, Daniel Wolf   +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

Metabolic Signatures of Lung Cancer in Biofluids: NMR-Based Metabonomics of Blood Plasma [PDF]

, 2011
In this work, the variations in the metabolic profile of blood plasma from lung cancer patients and healthy controls were investigated through NMR-based metabonomics, to assess the potential of this approach for lung cancer screening and diagnosis.
Joana Carrola, Brian J. Goodfellow, Carreira, Isabel M., Goodfellow, Brian J., Rocha, Cláudia M., Gil, Ana M., Carvalho, Lina, Cláudia M. Rocha, António S. Barros, Lina Carvalho, Barros, António S., Ana Gomes, Bernardo, Joao, Carrola, Joana, Sousa, Vitor, Ana M. Gil, João Bernardo, Vitor Sousa, Gomes, Ana, Iola F. Duarte, Isabel M. Carreira, Duarte, Iola F.   +21 more
core   +1 more source

Assessment of oxygen plasma ashing as a pre-treatment for radiocarbon dating [PDF]

, 2009
This study investigates the potential of low-temperature oxygen plasma ashing as a technique for decontaminating charcoal and wood samples prior to radiocarbon dating.
Bird, M.I., Wood, R., Charville-Mort, Peter D.J., Ascough, P.L., Apperley, David, Charville-Mort, P.D.J, Wood, Rachel, Apperley, D., Ascough, Philippa L., Higham, T.F.G., Charville-Mort, Peter D. J., Bird, Michael I., Higham, Tom   +12 more
core   +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

Potential of Clay-Based Geomaterials for Passive Treatment of Brackish and Saline Waters [PDF]

BIO Web of Conferences
The 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, Azdem Driss, Alloun Fouad, Mabrouki Jamal, Faraji Mustapha, Abdelhafid Essadki, ElBouari Abdeeslam   +6 more
doaj   +1 more source

Ionic coupling to plasma polymer surfaces [PDF]

, 2000
The work in this thesis was aimed at the preparation of low energy surfaces via the surface attachment of fluorinated surfactant molecules. Such surface functionalisation routes are highly dependent on the chemical nature of the substrate surface.
Mutton, Simon James
core  

ABL kinase‐dependent phosphorylation of SH proteins promotes their direct interaction with CRK family SH2 domains

FEBS Letters, EarlyView.
CT10 regulator of kinase (CRK) and CRK‐Like (CRKL) are signaling adaptors driving cell adhesion, motility, differentiation, and proliferation. SH2‐domain containing (SH) proteins are enriched in YXXP motifs which when phosphorylated create preferred binding sites for CRK family SH2 domains.
Phoebe M. Cousens, Brendan W. Chandler, Anna M. Schmoker, Jaye L. Weinert, Charlotte A. Kearns, Warren T. Yacawych, Amila Šemić, Alicia M. Ebert, Bryan A. Ballif   +8 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, Evgeny Stambulchik, Thomas Gomez, Mohammed Koubiti   +3 more
doaj   +1 more source

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, Yaseen H. Mahmood, Sameen F.Mohammed   +2 more
doaj   +1 more source