Results 81 to 90 of about 3,903,891 (291)

Nanoscale alpha-structural domains in the phonon-glass thermoelectric material beta-Zn4Sb3 [PDF]

open access: yes, 2007
A study of the local atomic structure of the promising thermoelectric material beta-Zn4Sb3, using atomic pair distribution function (PDF) analysis of x-ray- and neutron-diffraction data, suggests that the material is nanostructured.
Billinge, S. J.   +4 more
core  

Ultrafast changes in lattice symmetry probed by coherent phonons

open access: yes, 2012
The electronic and structural properties of a material are strongly determined by its symmetry. Changing the symmetry via a photoinduced phase transition offers new ways to manipulate material properties on ultrafast timescales.
A Cavalleri   +34 more
core   +1 more source

Genetic attenuation of ALDH1A1 increases metastatic potential and aggressiveness in colorectal cancer

open access: yesMolecular Oncology, EarlyView.
Aldehyde dehydrogenase 1A1 (ALDH1A1) is a cancer stem cell marker in several malignancies. We established a novel epithelial cell line from rectal adenocarcinoma with unique overexpression of this enzyme. Genetic attenuation of ALDH1A1 led to increased invasive capacity and metastatic potential, the inhibition of proliferation activity, and ultimately ...
Martina Poturnajova   +25 more
wiley   +1 more source

Structural origins of electronic conduction in amorphous copper-doped alumina

open access: yes, 2019
We perform an {\it ab initio} modeling of amorphous copper-doped alumina (a-Al$_2$O$_3$:Cu), a prospective memory material based on resistance switching, and study the structural origin of electronic conduction in this material.
Drabold, D. A.   +3 more
core   +1 more source

Keratin 19 as a prognostic marker and contributing factor of metastasis and chemoresistance in high‐grade serous ovarian cancer

open access: yesMolecular Oncology, EarlyView.
Keratin 19 (KRT19) is overexpressed in high‐grade serous ovarian cancer with high levels of Kallikrein‐related peptidases (KLK) 4–7 and is associated with poor survival. In vivo analyses demonstrate that elevated KRT19 increases peritoneal tumour burden.
Sophia Bielesch   +13 more
wiley   +1 more source

BATA LEMPUNG BAHAN BANGUNAN DINDING ALTERNATIF

open access: yesDimensi: Journal of Architecture and Built Environment, 2001
"Bata lempung" is block of wall material, main basic material is sols contains 50-60% clay, pressed and molded, without combusted, used after 28 days and production doesn't depend climates. "Bata lempung" can used as bearing wall or curtain wall, exposed
Vincentius Totok Noerwasito
doaj  

Enhancing the Strength and Durability of Cement Mortar: Synergetic Effects of Shell Powder, Calcium Formate and Basalt Fibers

open access: yesBuildings
This study focuses on the core issue of sustainably utilizing shells to enhance the performance of cement mortar. The influence of shell powder on the slump flow, setting time, mechanical strengths, drying shrinkage rate and carbonation depth of cement ...
Wei Shi   +6 more
doaj   +1 more source

Graphite-reinforced aluminum composite [PDF]

open access: yes, 1971
Metallic composite prepared for utilization which remains intact without aluminum/carbon reactions, is less expensive than other structural materials, and yields a flexible composite ...
Lalacona, F. P.
core   +1 more source

Somatic mutational landscape in von Hippel–Lindau familial hemangioblastoma

open access: yesMolecular Oncology, EarlyView.
The causes of central nervous system (CNS) hemangioblastoma in Von Hippel–Lindau (vHL) disease are unclear. We used Whole Exome Sequencing (WES) on familial hemangioblastoma to investigate events that underlie tumor development. Our findings suggest that VHL loss creates a permissive environment for tumor formation, while additional alterations ...
Maja Dembic   +5 more
wiley   +1 more source

Using Mass Timber in Multi-Storey and Non-Residential Construction Projects: Motivations and Barriers for Professionals in Quebec

open access: yesBioResources
Despite their environmental benefits and technical viability, mass timber structures adoption remains limited. As an alternative to steel and concrete in non-residential and multi-storey construction, they represent only 10.2% of buildings four or fewer ...
Baptiste Giorgio   +5 more
doaj  

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