Results 61 to 70 of about 513,826 (300)

Ab initio phonon dispersion curves and interatomic force constants of barium titanate

open access: yes, 1997
The phonon dispersion curves of cubic BaTiO_3 have been computed within a first-principles approach and the results compared to the experimental data. The curves obtained are very similar to those reported for KNbO_3 by Yu and Krakauer [Phys. Rev.
Bilz H.   +18 more
core   +1 more source

Numerical coupling of fluid and structure in cardiac flow and devices [PDF]

open access: yes, 2006
Numerical simulations are a powerful tool in investigation of flow and structure dynamics in biological systems and in the design of biomedical devices.
Avrahami, Idit
core   +1 more source

The newfound relationship between extrachromosomal DNAs and excised signal circles

open access: yesFEBS Letters, EarlyView.
Extrachromosomal DNAs (ecDNAs) contribute to the progression of many human cancers. In addition, circular DNA by‐products of V(D)J recombination, excised signal circles (ESCs), have roles in cancer progression but have largely been overlooked. In this Review, we explore the roles of ecDNAs and ESCs in cancer development, and highlight why these ...
Dylan Casey, Zeqian Gao, Joan Boyes
wiley   +1 more source

Conducting Political Research in a Highly Sensitive Post-Conflict Environment: Reflections from The Internally Displaced Camps In Kenya

open access: yesMalaysian Journal of International Relations, 2016
This article elucidates the ethical and methodological intricacies of the semi-structured interviews when the author conducted is qualitative-based fieldwork in the Internally Displaced Camps (IDPs) in Nairobi and Rift Valley, Kenya.
Muhammad Danial Azman
doaj   +1 more source

The influence of out-of-plane stress on a plane strain problem in rock mechanics [PDF]

open access: yes, 1987
This paper analyses the stresses and displacements in a uniformly prestressed Mohr-Coulomb continuum, caused by the excavation of an infinitely long cylindrical cavity.
Reed, M B
core  

An upstream open reading frame regulates expression of the mitochondrial protein Slm35 and mitophagy flux

open access: yesFEBS Letters, EarlyView.
This study reveals how the mitochondrial protein Slm35 is regulated in Saccharomyces cerevisiae. The authors identify stress‐responsive DNA elements and two upstream open reading frames (uORFs) in the 5′ untranslated region of SLM35. One uORF restricts translation, and its mutation increases Slm35 protein levels and mitophagy.
Hernán Romo‐Casanueva   +5 more
wiley   +1 more source

Growing spatial correlations of particle displacements in a simulated liquid on cooling toward the glass transition

open access: yes, 1998
We define a correlation function that quantifies the spatial correlation of single-particle displacements in liquids and amorphous materials. We show for an equilibrium liquid that this function is related to fluctuations in a bulk dynamical variable. We
A. Onuki   +26 more
core   +1 more source

Biallelic Inactivation of NSD1 Associated With Carcinogenesis in Sotos Syndrome

open access: yes
Pediatric Blood &Cancer, EarlyView.
Nicholas A. Borja   +8 more
wiley   +1 more source

In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS

open access: yesFEBS Letters, EarlyView.
We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka   +11 more
wiley   +1 more source

Corrugated Shell Displacements During the Passage of a Vehicle Along a Soil-Steel Structure

open access: yesStudia Geotechnica et Mechanica, 2016
Corrugated steel plates are highly rigid and as the constructions can be immersed in soil, they can be used as soil-steel structures. With an increase of cover depth, the effectiveness of operating loads decreases.
Machelski Czesław, Mumot Marcin
doaj   +1 more source

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