Results 31 to 40 of about 3,506,749 (365)

Is the biology of breast cancer changing? A study of hormone receptor status 1984-1986 and 1996-1997 [PDF]

open access: yes, 2009
Using archived tumours, those from 1984-1986 and 1996-1997 underwent immunohistochemistry for hormone receptors and grade analysis. A significant shift towards more ER-positive and low-grade disease was found; this appears to reflect screening practices,
AG Glass   +16 more
core   +2 more sources

Fine Gradings of Low-Rank Complex Lie Algebras and of Their Real Forms [PDF]

open access: yesSIGMA 4 (2008), 039, 13 pages, 2008
In this review paper, we treat the topic of fine gradings of Lie algebras. This concept is important not only for investigating the structural properties of the algebras, but, on top of that, the fine gradings are often used as the starting point for studying graded contractions or deformations of the algebras. One basic question tackled in the work is
arxiv   +1 more source

Pseudoprogression in low-grade glioma [PDF]

open access: yesTranslational Cancer Research, 2019
Pseudoprogression (PsP) is a common phenomenon seen after radiotherapy (RT) for primary brain tumors. PsP is a post-treatment related effect that is identified by increased enhancement on T1-weighted MRI, or increased hyperintensity on T2/FLAIR, with subsequent stabilization or resolution without any intervention. This imaging finding may or may not be
Jason M. Slater, Helen A. Shih
openaire   +3 more sources

Hemispheric low-grade gliomas [PDF]

open access: yesChild's Nervous System, 2016
n ...
Tamburrini, Gianpiero, Hinojosa, Jose
openaire   +3 more sources

Influence of Shape and Piezoelectric-Patch Length on Energy Conversion of Bluff Body-Based Wind Energy Harvester

open access: yesComplexity, 2020
The technology of scavenging ambient energy to realize self-powered of wireless sensor has an important value in practice. In order to investigate the effects of piezoelectric-patch length and the shape of front bluff body on energy conversion of the ...
Changjiang Zhang   +5 more
doaj   +1 more source

A Review on Heat Transfer Enhancement of Phase Change Materials Using Fin Tubes

open access: yesEnergies, 2023
Latent heat thermal energy storage (LHTES) has received more and more attention in the thermal energy storage field due to the large heat storage density and nearly constant temperature during phase change process.
Fei Ma   +5 more
doaj   +1 more source

A Graded Metamaterial for Broadband and High-capability Piezoelectric Energy Harvesting [PDF]

open access: yes, 2022
This work studies a broadband graded metamaterial, which integrates the piezoelectric energy harvesting function targeting low-frequency structural vibrations, lying below 100 Hz. The device combines a graded metamaterial with beam-like resonators, piezoelectric patches and a self-powered piezoelectric interface circuit for energy harvesting.
arxiv   +1 more source

Promotion of carbon fixation and emission reduction by microalgae with optical fiber/light guide tubes

open access: yesMeitan kexue jishu
China’s coal-fired power plants emit over 5.7 billion tons of CO2 annually. To realize the dual carbon goals in time, it is necessary to reduce the carbon emissions of coal-fired power plants. Microalgae carbon fixation can efficiently absorb CO2 through
Ao XIA   +6 more
doaj   +1 more source

Numerical Investigation of the Combustion Characteristics of an Internal Combustion Engine with Subcritical and Supercritical Fuel

open access: yesApplied Sciences, 2020
The similarities and differences in the combustion and emission characteristics of supercritical- and subcritical-state fuel injection conditions of an internal combustion engine was clarified.
Yukun Song   +5 more
doaj   +1 more source

Novel therapeutic venues for glioblastoma: novel rising preclinical treatment opportunities [PDF]

open access: yes, 2011
High grade gliomas, including anaplastic glioma WHO grade III and glioblastoma WHO IV (GBM), carry a dismal prognosis. Taking all nowadays-available therapeutics options, including radiation, chemotherapy and surgery, for GBM into consideration the ...
Siegelin, Markus David   +1 more
core   +1 more source

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