Results 101 to 110 of about 7,662 (229)

On the adoption of stricter energy efficiency standards for residential air conditioners: Case study Guayaquil, Ecuador. [PDF]

Heliyon, 2023
Porras F, Walter A, Soriano G, Ramirez AD.   +3 more
europepmc   +1 more source

Aerial Archaeology in the Space Age [PDF]

No abstract ...
Scalera, Mary Marguerite
core   +1 more source

Transforming Grain‐Boundary Brittle Precipitates to Ductility Pathways in Complex Concentrated Alloy

Advanced Science, EarlyView.
By engineering graded BCC/L12 interfaces, brittle precipitates in a complex concentrated alloy enable sequential deformation, realizing gigapascal strength with >20% elongation to solve the strength‐ductility trade‐off. ABSTRACT Conventional wisdom holds that hard grain‐boundary (GB) precipitates embrittle structural alloys by acting as crack ...
Zhixin Li, Xiao‐Tong Li, Zhaoqi Chen, Yushan Geng, Hao Gong, Sijia Hu, Wenli Song, Wanshun Xia, Chuanzheng Li, Linfa Peng, Yue Fan, Pengfei Guan, Bo Zhang, Weihua Wang, Yong Yang   +14 more
wiley   +1 more source

Engineered Small Extracellular Vesicles Targeting Tumor‐Associated Endothelial Cells to Effectively Remodel the Glioma Microenvironment

Advanced Science, EarlyView.
This study developed a novel drug delivery platform that overcomes the blood‐brain barrier in glioblastoma. By fusing IGFBP7 with small extracellular vesicles, the platform specifically targets tumor vasculature. It effectively delivers temozolomide, suppressing tumor growth at low doses.
Lingling Liu, Feiyang Xu, Zhiming Zheng, Xiaodan Yang, Fang Yang, Pei Liu, Yuankun Chen, Yunshu Yang, Junli Zhao, Peiyan Yang, Xiaojing Zheng, Xiaohong Sun, Ping Mao, Qinwen Mao, Hao Guan, Haibin Xia, Weifeng Zhang, Dan Xiao   +17 more
wiley   +1 more source

Modeling users' satisfaction and visit intention using AI-based chatbots. [PDF]

PLoS One, 2023
Orden-Mejía M, Carvache-Franco M, Huertas A, Carvache-Franco O, Carvache-Franco W.   +4 more
europepmc   +1 more source

Irrigation and water resources in Latin America and the Caribbean: challenges and strategies [PDF]

Latin America and the Caribbean are relatively well endowed with water resources. However, population growth and rapid urbanization are putting considerable pressure on water available for irrigation.
Paisner, Michael S., Ringler, Claudia, Rosegrant, Mark W.   +2 more
core  

Deformable Eutectic Alloy With Near‐Theoretical Yield Strength via Hierarchical Nanoscale Multiphases and Sessile Defects

Advanced Science, EarlyView.
A CoCrFeNiTa0.4 eutectic high‐entropy alloy achieves a near‐theoretical yield strength of 2.6 GPa with 13.6% plasticity. This breakthrough stems from a hierarchical nanostructure (FCC‐Laves lamellae with L12/D022 precipitates), which alleviates the inter‐phase modulus/hardness mismatch through synergistic strengthening and toughening, guiding the ...
Yusha Luo, Qianqian Wang, Bo Sun, Ruixin Sheng, Zhijun Guo, Gaopeng Zou, Zhe Jia, Yang Tong, Gang Sha, Peter K. Liaw, Baolong Shen   +10 more
wiley   +1 more source

Coping Strategies Used by Health Care Workers in Ecuador During the COVID-19 Pandemic: Observational Study to Enhance Resilience and Develop Training Tools.

JMIR Hum Factors, 2023
Vicente MA, Gil Hernández E, Carrillo I, Fernández C, López-Pineda A, Guilabert M, Martín-Delgado J, Solis C, Camba K, Cañizares Fuentes WR, Mira JJ.   +10 more
europepmc   +1 more source

Development and validation of a scoring system to predict mortality in patients hospitalized with COVID-19: A retrospective cohort study in two large hospitals in Ecuador. [PDF]

PLoS One, 2023
Dueñas-Espín I, Echeverría-Mora M, Montenegro-Fárez C, Baldeón M, Chantong Villacres L, Espejo Cárdenas H, Fornasini M, Ochoa Andrade M, Solís C.   +8 more
europepmc   +1 more source

Addressing Oxygen Embrittlement in Additively Manufactured Titanium via Cu‐Mediated Interstitial Site Engineering

Advanced Science, EarlyView.
A novel “Cu‐mediated interstitial site engineering” strategy is introduced to thermodynamically stabilize hexagonal oxygen (hex‐O) configurations in oxygen‐containing titanium alloys. The hex‐O configuration activates multiple slip systems and enhances dislocation pinning via long‐range repulsion.
Xiaobin Lin, Xudong Rong, Jiachen Xie, Xinru Wang, Jianteng Wang, Zhihang Xu, Dongdong Zhao, Shiwei Pan, Feng Qian, Longlong Ma, Gang Sha, Xiang Zhang, Chunsheng Shi, Chunnian He, Naiqin Zhao   +14 more
wiley   +1 more source