Results 111 to 120 of about 1,389,487 (295)

Melting of crystalline solids

open access: yes, 2009
It is suggested that at the melting temperature the thermal phonon vibration is in self-resonance with the lattice vibration of the surface atomic/molecular layer.
Apai   +57 more
core   +1 more source

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

open access: yesFEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa   +5 more
wiley   +1 more source

Non-classical behavior of atoms in an interferometer [PDF]

open access: yes, 2001
We have studied the properties of the non-classical behavior of atoms in a double-slit interferometer. An indication of this behavior for metastable helium was reported by Kurtsiefer, Pfau and Mlynek [Nature 386, 150 (1997)] showing distinctive negative ...
Arsenovic, Dusan   +2 more
core   +1 more source

A Consistent model of Electroweak data including $Z\to b\overline{b}$ and $Z\to c \overline{c}$

open access: yes, 1996
We have performed an overall fit to the electroweak data with the generation blind $U(1)$ extension of the Standard Model. As input data for fitting we have included the asymmetry parameters, the particle decay widths of $Z$, neutrino scattering, and ...
Agashe, K.   +3 more
core   +1 more source

A methionine‐lined active site governs carbocation stabilization and product specificity in a bacterial terpene synthase

open access: yesFEBS Letters, EarlyView.
This study reveals a unique active site enriched in methionine residues and demonstrates that these residues play a critical role by stabilizing carbocation intermediates through novel sulfur–cation interactions. Structure‐guided mutagenesis further revealed variants with significantly altered product profiles, enhancing pseudopterosin formation. These
Marion Ringel   +13 more
wiley   +1 more source

Toward a New Evaluation of Neutron Standards

open access: yesEPJ Web of Conferences, 2016
Measurements related to neutron cross section standards and certain prompt neutron fission spectra are being evaluated. In addition to the standard cross sections, investigations of reference data that are not as well known as the standards are being ...
Carlson A.D.   +16 more
doaj   +1 more source

Atomic data from the IRON project - LI. Electron impact excitation of FeIX [PDF]

open access: yes, 2002
We calculate collision strengths and thermally averaged collision strengths for electron excitation between the one hundred and forty energetically lowest levels of Fe8+.
Le Dourneuf, M, Storey, PJ, Zeippen, CJ
core  

Atomic Data from the Opacity Project [PDF]

open access: yesHighlights of Astronomy, 1992
The name Opacity Project (OP) refers to an international collaboration that was formed in 1984 to calculate the extensive atomic data required to estimate stellar envelope opacities. The project has involved research groups from France, Germany, the United Kingdom, the United States and Venezuela.
openaire   +1 more source

Valosin‐containing protein counteracts ATP‐driven dissolution of FUS condensates through its ATPase activity in vitro

open access: yesFEBS Letters, EarlyView.
Biomolecular condensates formed by fused in sarcoma (FUS) are dissolved by high ATP concentrations yet persist in cells. Using a reconstituted system, we demonstrate that valosin‐containing protein (VCP), an AAA+ ATPase, counteracts ATP‐driven dissolution of FUS condensates through its D2 ATPase activity.
Hitomi Kimura   +2 more
wiley   +1 more source

Fourier shape parameterization in covariant density functional theory for nuclear fission

open access: yesPhysics Letters B
We implement the Fourier shape parameterization within the point-coupling covariant density functional theory to construct the collective space, potential energy surface (PES), and mass tensor, which serve as inputs for the time-dependent generator ...
Zeyu Li   +4 more
doaj   +1 more source

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