Results 41 to 50 of about 181,833 (294)

DETERMINATION OF RADIATION SHIELDING PARAMETERS OF COCRFENITIALX ALLOYS BY USING RECENTLY DEVELOPED PHY-X/PSD AND EPIXS SOFTWARES

Journal of Amasya University the Institute of Sciences and Technology, 2022
We calculate the radiation shielding parameters of CoCrFeNiTiAlx alloys which consist of mass attenuation coefficient, linear attenuation coefficient, mean free path, half-value layer, total atomic cross section, effective atomic number and effective ...
Nurettin Arpac, Murat Aygun
doaj   +1 more source

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

FEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho, Shin Morioka, Junko Sasaki, Takehiko Sasaki   +3 more
wiley   +1 more source

Determination of the effective atomic number of thick samples of unknown composition using scattering studies

, 2017
The effective atomic number ( $ Z_{\backslashrm eff}$Zeff is a quantity which gives the fraction of the total number of electrons in a composite material participating in the photon-atom interaction.
B. M. Sankarshan, Umesh, T. K., T. K. Umesh, Sankarshan, B. M., Athrey, C. D., C. D. Athrey   +5 more
core   +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, Tanmay Kumar Mohanty, Rashna Bhandari, Dorothea Fiedler   +3 more
wiley   +1 more source

Identification of Common Minerals Using Stoichiometric Calibration Method for Dual‐Energy CT

Geochemistry, Geophysics, Geosystems, 2021
Medical X‐ray computed tomography (CT) can be used to rapidly and non‐destructively characterize structure and density variations of geological specimens.
Margherita Martini, Pierre Francus, Leonardo Di Schiavi Trotta, Philippe Després   +3 more
doaj   +1 more source

Structural instability impairs function of the UDP‐xylose synthase 1 Ile181Asn variant associated with short‐stature genetic syndrome in humans

FEBS Letters, EarlyView.
The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li, Pedro A. Sánchez‐Murcia, Bernd Nidetzky   +2 more
wiley   +1 more source

Computational Analysis of Gamma-Ray and Fast Neutron Attenuation performance of some Thorium and Uranium Compounds

Brazilian Journal of Radiation Sciences
Evaluation of the radiation shielding effectiveness of some compounds including Fe, Th, Y, Nb, Ta, Ti, and U have been computed for energy absorption and total interaction in the photon energy range from 0.015 to 15 MeV. The effective atomic number (Zeff)
Ahmed Osman
doaj   +1 more source

Bazı K ve Ca Bileşikleri İçin Kütle Soğurma Katsayısı, Toplam Elektronik Tesir Kesiti, Toplam Atomik Tesir Kesiti, Etkin Atom Numarası, Etkin Elektron Yoğunluğu ve Kerma Ölçümü

Düzce Üniversitesi Bilim ve Teknoloji Dergisi, 2021
Bu yazıda deneysel ve teorik olarak bazı K ve Ca bileşiklerinin kütle soğurma katsayısı geçirgenlik yöntemi kullanılarak hesaplanmıştır. Ayrıca kütle soğurma katsayısı kullanılarak toplam elektronik tesir kesit, toplam atomik kesit, etkin atom numarası ...
Saniye Tekerek
doaj   +1 more source

Imaging ancient and mummified specimens: Dual-energy CT with effective atomic number imaging of two ancient Egyptian cat mummies [PDF]

, 2016
In mummified animals and humans, soft tissues like skin and muscle become more dense over time due to dehydration. At the same time, bone becomes less dense as marrow is replaced by air.
Pate, F. Donald, Henneberg, M., Bewes, James M., Henneberg, Maciej, Hindson, Aphrodite, Craig, Barry, Morphett, A., Craig, B., Pate, F., Low, A., Hindson, A., Morphett, Antony, Low, Andrew J., Bewes, J., Kruse, L., Adams, E., Adams, Eleanor, Kruse, Lars   +17 more
core   +1 more source

The (Glg)ABCs of cyanobacteria: modelling of glycogen synthesis and functional divergence of glycogen synthases in Synechocystis sp. PCC 6803

FEBS Letters, EarlyView.
We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee, Dimitrios Bekiari, Sofia Doello, Karl Forchhammer   +3 more
wiley   +1 more source