Results 81 to 90 of about 595,305 (339)

Mechanochemical Synthesis and Characterization of Nanostructured ErB4 and NdB4 Rare‐Earth Tetraborides

open access: yesAdvanced Engineering Materials, Volume 27, Issue 6, March 2025.
ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur   +5 more
wiley   +1 more source

Convexity and translational invariance constraint on the exchange-correlation functional

open access: yes, 1996
Knowledge of the properties of the exchange-correlation functional in the form $\frac 1\lambda v_{xc}([\rho _\lambda ],\frac{{\bf r}}\lambda )$, where $\rho _\lambda ({\bf r})=$ $\lambda ^3\rho (\lambda {\bf r}),$ is important when expressing the ...
Joubert, Daniel, Levy, Mel
core   +1 more source

Restriction alleviation by bacteriophages lambda and lambda reverse [PDF]

open access: yesJournal of Virology, 1981
Deletion analysis indicated that the phage lambda restriction alleviation gene(s) ral resides between the cIII and N genes. The Ral+ phenotype was expressed only when lambda ral+ carried a modification such that it was resistant to restriction by the host specificity system.
openaire   +3 more sources

Revisiting Stability Criteria in Ball‐Milled High‐Entropy Alloys: Do Hume–Rothery and Thermodynamic Rules Equally Apply?

open access: yesAdvanced Engineering Materials, Volume 27, Issue 6, March 2025.
The stability criteria affecting the formation of high‐entropy alloys, particularly focusing in supersaturated solid solutions produced by mechanical alloying, are analyzed. Criteria based on Hume–Rothery rules are distinguished from those derived from thermodynamic relations. The formers are generally applicable to mechanically alloyed samples.
Javier S. Blázquez   +5 more
wiley   +1 more source

Homologous recombination defects and how they affect replication fork maintenance

open access: yesAIMS Genetics, 2019
Homologous recombination (HR) repairs DNA double strand breaks (DSBs) and stabilizes replication forks (RFs). RAD51 is the recombinase for the HR pathway.
Mi Young Son, Paul Hasty
doaj   +1 more source

Behaviour of the potentials due to strangeness degree of freedom in $_{\Lambda\Lambda}^6$He hypernucleus

open access: yes, 2006
Fully correlated study of $_{\Lambda\Lambda} ^6$He hypernucleus has been performed with two- and three- baryon potentials. For the S=-2 sector, various simulations of Nijmegen $\Lambda\Lambda$ potential models have been used.
A A Usmani, Gal A, Usmani A A, Z Hasan
core   +1 more source

Compactness of $\omega^\lambda$ for $\lambda$ singular

open access: yesJournal of Logic and Analysis, 2013
Comment: Treats the case \lambda\ singular only hinted in arXiv:1302.4763; v2 some very minor improvements and ...
openaire   +5 more sources

CALPHAD‐Guided Prediction and Interpretation of Phase Formation in Ta–Mo–Cr–Ti–Al Refractory High‐Entropy Alloys

open access: yesAdvanced Engineering Materials, EarlyView.
This study designs Ta–Mo–Cr–Ti–Al refractory high‐entropy alloys with a disordered body‐centered‐cubic A2 crystal structure aiming for improved ductility, lower density, and oxidation resistance. Four alloy compositions are identified by thermodynamic calculations.
Kateryna Khanchych   +7 more
wiley   +1 more source

Distribución de tipos de paraproteínas en una muestra de enfermos con mieloma múltiple Distribution of types of paraproteins in a sample of patients with multiple myeloma

open access: yesRevista Cubana de Hematología, Inmunología y Hemoterapia, 2013
Introducción: el mieloma múltiple (MM) es una enfermedad caracterizada por una proliferación monoclonal de inmunoglobulinas que representa aproximadamente el 15 % de las hemopatías malignas. Métodos: se realizó un estudio de la distribución de las clases,
Ada Amalia Arce-Hernández   +6 more
doaj  

Measurements of $J/\psi$ and $\psi(2S)$ decays into $\Lambda \bar{\Lambda}\pi^0$ and $\Lambda \bar{\Lambda}\eta$

open access: yes, 2007
Using 58 million $J/\psi$ and 14 million $\psi(2S)$ events collected by the BESII detector at the BEPC, branching fractions or upper limits for the decays $J/\psi$ and $\psi(2S) \to \Lambda \bar{\Lambda}\pi^0$ and $\Lambda \bar{\Lambda}\eta$ are measured.
B. A. Zhuang   +161 more
core   +1 more source

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