Results 41 to 50 of about 4,566,606 (288)

The Price of Precision: A Critical Review of Molecular Diagnostics in Glioma, From Guidelines to Global Disparities

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Gliomas have undergone a profound redefinition over the past decade, transitioning from morphology‐based entities to biologically coherent diseases defined by molecular alterations. The 2021 WHO Classification of Tumors of the Central Nervous System and its 2022 update formalize this shift, establishing integrated diagnosis as the global ...
Maria Guarnaccia, Sebastiano Cavallaro
wiley   +1 more source

Clinical Impact of MGMT Promoter Methylation in IDH‐Mutant Gliomas: Influence of Threshold Selection and Clinical Confounding

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background The clinical relevance of MGMT promoter methylation in IDH‐mutant gliomas remains controversial in the era of molecular classification. We aimed to systematically evaluate its clinical relevance by integrating quantitative assessment, cutoff exploration, and adjustment for clinical confounding.
Haihui Jiang   +7 more
wiley   +1 more source

Investigation on Burden Particle Softening and Melting Process under High Reduction Potential Condition

open access: yesHigh Temperature Materials and Processes, 2016
The present study using a single-particle softening under a load equipment was designed to better understand the softening and melting process of pellet, sinter and a mixture of both under a high reduction potential condition.
Guo Wentao   +4 more
doaj   +1 more source

Determination of the bilinear stress-crack opening curve for normal- and high-strength concrete [PDF]

open access: yes, 2008
An improved version of the method proposed to ACI committee 446 and to RILEM TC 187-SOC to determine the fracture parameters of concrete is applied in this study to several mixtures of normal and high-strength concretes.
Sanz Merino, Beatriz   +3 more
core   +1 more source

Microstructural Evolution and Vacancy Defect Formation in Mn–Mo–Ni RPV Steel Under Low Cycle Fatigue: Insights From EBSD and PALS

open access: yesAdvanced Engineering Materials, EarlyView.
Low‐cycle fatigue damage in Mn–Mo–Ni reactor pressure vessel steel is examined using a combined electron backscatter diffraction and positron annihilation lifetime spectroscopy approach. The study correlates texture evolution, dislocation substructure development, and vacancy‐type defect formation across uniform, necked, and fracture regions, providing
Apu Sarkar   +2 more
wiley   +1 more source

Thermomechanical Fatigue and Creep–Fatigue Interaction of Inconel 718 Additively Manufactured by Laser Beam Powder Bed Fusion

open access: yesAdvanced Engineering Materials, EarlyView.
Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth   +6 more
wiley   +1 more source

Investigation of flow properties and activation energy of magnesium lignosulfonate modified bitumen

open access: yesFirat University Journal of Experimental and Computational Engineering, 2023
Recently, many studies have been carried out on the use of waste materials in bitumen modification. In this way, environmental and economic benefits are obtained and a field of use is created for waste materials.
Bahadır Yılmaz, Ahmet Münir Özdemir
doaj   +1 more source

The PRIMA Thesaurus for Materials Science and Engineering

open access: yesAdvanced Engineering Materials, EarlyView.
The PRIMA Thesaurus is a structured vocabulary designed to improve how materials science data is described and shared. Developed with input from multiple experts, it enables clear documentation of research workflows, data exchange, and reuse across platforms.
Rossella Aversa   +8 more
wiley   +1 more source

Preparation and Performance of Anisotropic Mesophase of Coal Pitch in Chemical Industry Based on Computer Monitoring Technology

open access: yesChemical Engineering Transactions, 2018
Asphalt and other organic compounds form an anisotropic structure in lithification. Its product is mesophase which has excellent property and low cost so that it has been widely used in carbon fiber, carbon foam, needle coke and lithium ion secondary ...
Jie Hu, Hongxia Zang
doaj   +1 more source

Acoustic characteristics of velar stops and velar softening in German, Polish and Catalan [PDF]

open access: yes, 2008
Two hypotheses have been proposed in order to account for velar softening, i.e., a process through which /k/ changes to an affricate. Whereas one hypothesis states that for the process to apply the velar stop has to be realized as an (alveolo) palatal ...
Espinosa, Aina   +2 more
core  

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