Results 31 to 40 of about 1,780 (258)

Integrated PANoptosis Profiling Identifies Immunosuppressive Subtypes and a Prognostic Signature With Functional Validation of MLKL in Glioblastoma

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective The prognosis of glioblastoma (GBM) remains highly unfavorable, largely due to high tumor heterogeneity and an immunosuppressive microenvironment. However, the functional role of PANoptosis in this context is poorly understood. Methods Patients were stratified via K‐means clustering. A risk score model was constructed using prognosis‐
Langfei Tian   +6 more
wiley   +1 more source

Variable Stiffness Flexure Structures Enabled by Phase‐Change Gallium and Adhesive Interfacial Locking for Soft Robotic Applications

open access: yesAdvanced Engineering Materials, EarlyView.
A flexure‐based variable stiffness structure is developed by integrating phase‐change modulation and adhesive interfacial locking of gallium. The design enables a wide stiffness variability, transitioning from soft, flexible behavior to rigid, load‐supporting performance.
Sungjin Kim   +2 more
wiley   +1 more source

El cuidado del ambiente y la Iglesia católica

open access: yesRevista Kawsaypacha
La Iglesia católica se ha involucrado en temas ambientales bastante recientemente, a partir del Concilio Vaticano II, que coincidió con el surgimiento del movimiento ambiental en los Estados Unidos y Europa.
José Álvarez Alonso
doaj   +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

Política ambiental en México y su dimensión regional

open access: yesRegión y Sociedad, 2002
La política ambiental de México se estableció durante los años ochenta y noventa, pasó por la etapa de reformas neoliberales de la economía y transitó progresivamente hacia formas de operación que la integran al mercado ambiental global.
Jordy Micheli
doaj  

Creating Ti–Fe α/β Alloys by Diffusion‐Driven Solid‐State Processing

open access: yesAdvanced Engineering Materials, EarlyView.
This study proposes making alloys containing fast diffusing elements that are difficult to produce by ingot metallurgy, by diffusion‐driven solid‐state HIP processing of elemental powders and low‐temperature homogenisation. Here, novel Fe‐Ti α–β alloys are formed having fine α–β lamellae, a small β prior grain size without significant intermetallics ...
Jiaqi Xu   +10 more
wiley   +1 more source

A Simplified Laminar Flow Model for the Pultrusion of Glass Fiber/Polyethylene Terephthalate Commingled Yarns

open access: yesAdvanced Engineering Materials, EarlyView.
A simplified thermoplastic pultrusion model is developed to predict thermal fields in glass fiber/polyethylene terephthalate (GF/PET) composites with reduced computational cost. By combining effective material homogenization, validation against literature data, and Gaussian‐process‐based optimization, the study reveals how heating limits, pulling speed,
Elder Soares   +3 more
wiley   +1 more source

Retomando fundamentos y paradigmas para el tránsito de la crisis ambiental hacia sociedades sustentables

open access: yesSociedad y Ambiente, 2016
El presente trabajo se propone discutir sobre la crisis ambiental actual y los argumentos que enmarcan la naturaleza del problema como crisis social de magnitudes planetarias y que involucra diversos ámbitos: cultura, educación, instituciones, historia ...
Carlos Francisco Ortiz Paniagua   +1 more
doaj   +1 more source

Phase Field Failure Modeling: Brittle‐Ductile Dual‐Phase Microstructures under Compressive Loading

open access: yesAdvanced Engineering Materials, EarlyView.
The approach by Amor and the approach by Miehe and Zhang for asymmetric damage behavior in the phase field method for fracture are compared regarding their fitness for microcrack‐based failure modeling. The comparison is performed for the case of a dual‐phase microstructure with a brittle and a ductile constituent.
Jakob Huber, Jan Torgersen, Ewald Werner
wiley   +1 more source

La variable ambiental en el eje relacional centro-periferia según la perspectiva teórica Análisis de Sistema-Mundo. Un análisis en los roles de América Latina en su relación con los países centrales del sistema mundial

open access: yesEstudos Internacionais, 2019
Este artículo propone incorporar la crisis ambiental como variable en el eje relacional centro-periferia según la perspectiva teórica Análisis de Sistema-Mundo, en la búsqueda de identificar posibles cambios en sus flujos y en los roles de América Latina
Juan Pablo Vásquez Bustamante
doaj   +1 more source

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