Results 141 to 150 of about 256,638 (238)

14‐3‐3γ Protects Against Postoperative Cognitive Dysfunction by Regulating Tau Thr205 Phosphorylation and Synaptic Integrity

open access: yesAdvanced Science, EarlyView.
Integrative multi‐cohort analyses identify 14‐3‐3γ as a biomarker and regulator of cognitive vulnerability. Experimental studies show that 14‐3‐3γ loss is associated with Tau Thr205 phosphorylation, synaptic dysfunction, and cognitive impairment, while genetic overexpression or pharmacological stabilization of 14‐3‐3γ confers protective effects in ...
Shouqiang Zhu   +5 more
wiley   +1 more source

Obras de estabilización, mitigación y control a la erosión de áreas afectadas del parque arqueológico de San Agustín-Huila

open access: yes, 2012
El Instituto Colombiano Antropología e historia – ICANH, en su necesidad de optimizar la condiciones ambientales y ecológicas y mitigar la problemática de erosión del Parque Arqueológico de San Agustín, celebró el acuerdo específico No. 002 - 2013 con la
García Bustos, Víctor Andrés
core  

Ablation‐Immune Thermal Armor Via Microstructural‐Compatibility Design for Extreme Thermal Conditions

open access: yesAdvanced Science, EarlyView.
This study unveils a microstructural‐compatibility design strategy that integrates reactive melt infiltration with plasma spraying to fabricate carbon fiber‐reinforced ZrC‐SiC composites. The deliberate incorporation of SiC into the ZrC coating releases heat accumulation, suppresses detrimental lamellar ZrO2 formation, and reduces residual stress. This
Hongkang Ou   +6 more
wiley   +1 more source

Partial bone erosion repair is independently associated with functional improvement in early rheumatoid arthritis: a 2-year prospective high-resolution peripheral quantitative CT (HR-pQCT) longitudinal study. [PDF]

open access: yesRMD Open
Wu Q   +15 more
europepmc   +1 more source

Structural Changes and Transport Properties of YBa2Cu3O7 Locally Modified by a He+ Focused Ion Beam

open access: yesAdvanced Science, EarlyView.
The structure and the electric transport properties of YBa2Cu3O7 modified with 30 keV He+${\rm He}^{+}$ ions depend on the irradiation dose and lateral size of the irradiated area, as shown by low‐temperature resistivity measurements, diffraction with a nanofocused X‐ray beam and atomic force microscopy.
Ross Carter   +11 more
wiley   +1 more source

A State‐Gated Metallo‐DNAzyme Framework Programs Tumor Stress Vulnerability Through Metabolic Licensing

open access: yesAdvanced Science, EarlyView.
A tumor‐state‐gated metallo‐DNAzyme framework integrates miR‐21/APE1‐responsive GLUT1 silencing with Ca/Cu‐partitioned metal–nucleic acid assembly and cystine loading. The framework first weakens glucose‐dependent metabolic buffering and then amplifies copper‐ and disulfide‐associated stress, converting tumor metabolic adaptation into programmable ...
Xiaodong Ma   +8 more
wiley   +1 more source

An Injectable Metal‐Drug Supramolecular Condensate Enables Radiosensitization and Systemic Antitumor Immunity for Post‐Surgical Osteosarcoma Therapy

open access: yesAdvanced Science, EarlyView.
This work designed an injectable metal‐drug supramolecular condensate formed from hafnium ions and alendronate (Hf‐ALN) and loaded with the COX‐2 inhibitor celecoxib (CXB) for synergistic radioimmunotherapy of postoperative osteosarcoma. Mechanistically, upon X‐ray irradiation, Hf enhances radiation energy deposition, ROS generation, and DNA damage ...
Tianhua Xiao   +12 more
wiley   +1 more source

Monitoreo espacio-temporal de la erosión hídrica en la cuenca de la Amazonía ecuatoriana

open access: yesSiembra
La cuenca ecuatoriana del Amazonas, a pesar de su relieve mayormente plano o ligeramente ondulado y su densa cobertura vegetal, enfrenta un riesgo latente de degradación de los suelos debido a la erosión, ocasionada por factores como la deforestación ...
Javier Martín   +4 more
doaj  

Rapid Cooling After Device Annealing Suppresses Interface Losses in Cu2ZnSnS4 Solar Cells Enabling High Efficiency and Stability

open access: yesAdvanced Science, EarlyView.
Rapid cooling after device annealing regulates the CdS/CZTS heterojunction and Mo/CZTS back contact, suppressing interfacial recombination and modifying the interfacial MoS2 layer, thereby enabling a 15.9% indoor PCE in pure‐sulfide CZTS solar cells.
Achmad Nasyori   +16 more
wiley   +1 more source

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