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Microstructure stability and self-diffusion in the equiatomic HfScTiZr HCP multi-principal element alloy
/ Muralikrishna, G Mohan (Munster U., ITP) ; Sen, Sandipan (Munster U., ITP) ; Ayyappan, Sai Kumaran (Indian Inst. Tech., Madras) ; Sankaran, S (Indian Inst. Tech., Madras) ; Guruvidyathri, K (Hyderabad U.) ; Schell, Juliana (CERN ; Duisburg-Essen U.) ; Rogal, Lukasz (Jagiellonian U.) ; Zhang, Xi (U. Stuttgart (main)) ; Mayer, Joachim (RWTH Aachen U. ; ZAT, Julich) ; Grabowski, Blazej (U. Stuttgart (main)) et al.
Tracer diffusion of 44Ti, 46Sc and 89Zr in the hexagonal close-packed (HCP) HfScTiZr multicomponent alloy is investigated using the radiotracer technique. The microstructure stability is thoroughly examined by conducting prolonged heat treatments between 873 K and 1373 K to mimic the diffusion conditions. [...]
2023 - 12 p.
- Published in : J. Alloy. Compd. 976 (2024) 173196
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As$^{\textrm{III}}$ Selectively Induces a Disorder-to-Order Transition in the Metalloid Binding Region of the AfArsR Protein
/ Tóth, Annamária ; Sajdik, Kadosa ; Gyurcsik, Béla ; Nafaee, Zeyad H ; Wéber, Edit ; Kele, Zoltan ; Christensen, Niels Johan ; Schell, Juliana (CERN) ; Correia, Joao Guilherme (CERN) ; Clauss, Kajsa G V Sigfridsson et al.
Arsenic is highly toxic and a significant threat to human health, but certain bacteria have developed defense mechanisms initiated by AsIII binding to AsIII-sensing proteins of the ArsR family. The transcriptional regulator AfArsR responds to AsIII and SbIII by coordinating the metalloids with three cysteines, located in a short sequence of the same monomer chain. [...]
2024 - 14 p.
- Published in : J. Am. Chem. Soc. 146 (2024) 17009-17022
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Data acquisition and Python processing using CAEN Digitizer DT5730S for Perturbed Angular Correlation Spectroscopy: the PACIFIC$^2$ route.
/ Rocha-Rodrigues, Pedro (Institute of Physics for Advanced Materials, Nanotechnology, and Photonics (IFIMUP), Faculty of Sciences and Technology of the University of Porto, 4169- 007 Porto, Portugal) ; Lopes, Armandina (Institute of Physics for Advanced Materials, Nanotechnology, and Photonics (IFIMUP), Faculty of Sciences and Technology of the University of Porto, 4169- 007 Porto, Portugal) ; Schell, Juliana (EP Department, ISOLDE-CERN, CH-1211 Geneva 23, Switzerland and Institute for Materials Science and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen, 45141 Essen, Germany)
CERN-INTC-2024-035 ; INTC-I-276.
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2024.
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Local study of Lithium Niobate domain walls
/ Heiniger-Schell, Juliana (Institute for Materials Science and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen, 45141 Essen, Germany) ; Guerlich, Hannes (Institute of Applied Physics, Technische Universitaet Dresden, 01062 Dresden, Germany) ; Dang, Thien (Institute for Materials Science and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen, 45141 Essen, Germany) ; Yap, Ian (Institute for Materials Science and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen, 45141 Essen, Germany) ; Doerschel, Bjoern (Institute for Materials Science and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen, 45141 Essen, Germany) ; Seddon, Samuel (Institute of Applied Physics, Technische Universitaet Dresden, 01062 Dresden, Germany) ; Koppitz, Boris (Institute of Applied Physics, Technische Universitaet Dresden, 01062 Dresden, Germany) ; Lopes, Armandina (Institute of Physics for Advanced Materials, Nanotechnology and Photonics (IFIMUP), 4169 - 007 Porto) ; Carbonari, Artur (Instituto de Pesquisas Energéticas e Nucleares IPEN-CNEN/SP, São Paulo 05508-000, Brazil) ; Lima, Nicole (Instituto de Pesquisas Energéticas e Nucleares IPEN-CNEN/SP, São Paulo 05508-000, Brazil) et al.
CERN-INTC-2024-034 ; INTC-P-703.
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2024.
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Revisiting the hydrolysis of ampicillin catalyzed byTemoneira-1β-lactamase, and the effect of Ni(II), Cd(II)and Hg(II)
/ Nafaee, Zeyad H (Szeged U. ; Unlisted, IQ) ; Egyed, Viktoria (Szeged U.) ; Jancso, Attila (Szeged U.) ; Toth, Annamaria (Szeged U.) ; Gerami, Adeleh Mokhles (IPM, Tehran ; CERN) ; Dang, Thanh Thien (Duisburg-Essen U.) ; Heiniger-Schell, Juliana (CERN ; Duisburg-Essen U.) ; Hemmingsen, Lars (Bohr Inst.) ; Hunyadi-Gulyas, Eva (Budapest, RMKI) ; Peintler, Gabor (Szeged U.) et al.
β-Lactamases grant resistance to bacteria against β-lactam antibiotics. The active center of TEM-1 β-lactamase accommodates a Ser-Xaa-Xaa-Lys motif. [...]
2023 - 20 p.
- Published in : Protein Sci. 32 (2023) e4809
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Temperature Dependence of the Hyperfine Magnetic Field at Fe Sites in Ba-Doped BiFeO$_3$ Thin Films Studied by Emission Mössbauer Spectroscopy
/ Heiniger-Schell, Juliana (CERN ; Duisburg-Essen U.) ; Bharuth-Ram, Krish (ENS, Lyon, Lab. Phys. ; KwaZulu Natal U. ; DUT, Durban) ; Naicker, Kimara (ENS, Lyon, Lab. Phys. ; KwaZulu Natal U.) ; Masondo, Vusumuzi (DUT, Durban) ; Dang, Thien Thanh (Duisburg-Essen U.) ; Escobar, Marianela (Duisburg-Essen U.) ; Díaz-Guerra, Carlos (Madrid U.) ; Marschick, Georg (Vienna, Tech. U.) ; Masenda, Hilary (Witwatersrand U.) ; Gunnlaugsson, Haraldur P (Iceland U.) et al.
Emission $^{57}$Fe Mössbauer spectroscopy (eMS), following the implantation of radioactive $^{57}$Mn+ ions, has been used to study the temperature dependence of the hyperfine magnetic field at Fe sites in Ba-doped BiFeO$_3$ (BFO) thin films. $^{57}$Mn β decays (t$_{1/2}$ = 90 s) to the 14.4 keV Mössbauer state of $^{57}$Fe, thus allowing online eMS measurements at a selection of sample temperatures during Mn implantation. [...]
2023 - 13 p.
- Published in : Crystals 13 (2023) 724
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Probing the local environments and optical properties in halide perovskites with short-lived radioactive isotopes
/ Masenda, Hilary (University of the Witwatersrand) ; Borchert, Juliane Anna (Fraunhofer Institute for Solar Energy Systems ISE) ; Deena, Naidoo (University of the Witwatersrand) ; Jakata, Kudakwashe (Diamond Light Source Ltd) ; Johnston, Karl (ISOLDE, CERN) ; Bharuth-Ram, Krish (University of KwaZulu-Natal) ; Gunnlaugsson, Haraldur Páll (University of Iceland) ; Er-Raji, Oussama (Fraunhofer Institute for Solar Energy Systems ISE) ; Gupta, Yashika (Fraunhofer Institute for Solar Energy Systems ISE) ; Mantovan, Roberto (CNR-IMM, Unit of Agrate Brianza) et al.
CERN-INTC-2024-018 ; INTC-P-697.
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2024.
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Magnetic origins of epitaxial MAX phase Mn2GaC-based thin films probed by Emission Mössbauer Spectroscopy
/ Qi, Bingcui (Science Institute, University of Iceland, Iceland) ; Gunnlaugsson, Haraldur Páll (Science Institute, University of Iceland, Iceland) ; Ólafsson, Sveinn (Science Institute, University of Iceland, Iceland) ; Þorsteinsson, Einar Baldur (Science Institute, University of Iceland, Iceland) ; Magnus, Friðrik (Science Institute, University of Iceland, Iceland) ; Rosén, Johanna (Materials Design Division, Department of Physics, Chemistry and Biology, IFM, Linköping University, Linköping 58183, Sweden) ; Tao, Quanzheng (Materials Design Division, Department of Physics, Chemistry and Biology, IFM, Linköping University, Linköping 58183, Sweden) ; Mantovan, Roberto (3CNR-IMM, Unit of Agrate Brianza, Via C. Olivetti 2, 20864 Agrate Brianza (MB), Italy) ; Masenda, Hilary (School of Physics, University of the Witwatersrand, South Africa) ; Zyabkin, Dmitry (Ilmenau, Gustav-Kirchhoff-Strasse 5, 98693 Ilmenau, Germany) et al.
CERN-INTC-2024-017 ; INTC-P-696.
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2024.
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