Results 101 to 110 of about 161,059 (304)

A causalidade e a indução: da crítica de Hume à resposta de Popper [PDF]

, 2019
Nesse artigo, apresento a crítica de Hume de seu Tratado da natureza humana contra a garantia de inferência de causalidade a partir de argumentos de cunho psicológico e de um argumento lógico.
Marinho, Elan
core  

Structural phase transitions in Ruddlesden-Popper phases of strontium titanate: {\em ab initio} and inhomogeneous Ginzburg-Landau approaches

, 2010
We present the first systematic {\em ab initio} study of anti-ferrodistortive (AFD) order in Ruddlesden-Popper (RP) phases of strontium titanate, Sr$_{1+n}$Ti$_n$O$_{3n+1}$, as a function of both compressive epitaxial strain and phase number $n$. We find
Arias, Tomás A., Lee, Jeehye
core   +1 more source

A Fully Self‐Powered Digital Wearable System for the Auxiliary Treatment of Plantar Fasciitis

Advanced Science, EarlyView.
This study reports a system‐level fully self‐powered digital wearable system (FS‐DWS) for the auxiliary treatment of plantar fasciitis. By integrating arch support, energy harvesting, wearable sensing, and machine learning‐driven closed‐loop visualized feedback, the system enables effective plantar pressure reduction and self‐powered, real‐time plantar
Jiacheng Hou, Ying Hong, Shiyuan Liu, Qiqi Pan, Jingyu Zhang, Qingyang Xu, Qiyi Nie, Zhonghe Wang, Liming Xin, Yilong Wang, Biao Wang   +10 more
wiley   +1 more source

Hydrophilic Janus Micelles From an ABC Triblock Copolymer

Angewandte Chemie, EarlyView.
An amphiphilic triblock copolymer with poly(ethylene glycol) (PEG) and poly(N‐vinylpyrrolidone) (PVP) coronas self‐assembles into spherical micelles with Janus‐type surface segregation in water. Cryo‐TEM, enabled by selective PVP labeling, and 1H‐NOESY NMR reveal phase separation.
José Muñoz‐López, Lei Hu, Hui Wang, Xiaohe Tian, Lorena Ruiz‐Pérez, Giuseppe Battaglia   +5 more
wiley   +2 more sources

First principles investigation of ferroelectricity in epitaxially strained Pb$_2$TiO$_4$

, 2005
The structure and polarization of the as-yet hypothetical Ruddlesden-Popper compound Pb$_2$TiO$_4$ are investigated within density-functional theory.
Craig J. Fennie, G. Kresse, G. Kresse, I. N. Belyaev, J.-R. Soh, Karin M. Rabe, M. A. Eisa, M. E. Lines, R. D. King-Smith   +8 more
core   +1 more source

Laser‐Architected Shape‐Configurable Vertical Graphene Thermoacoustic Loudspeakers for 3D Acoustic Emission

Advanced Science, EarlyView.
A dual‐laser‐architected vertical graphene film enables high‐performance, morphologically reconfigurable thermoacoustic loudspeakers.The vertically aligned graphene structures combine efficient heat dissipation, thickness‐independent SPL, and kirigami‐driven 3D transformations, offering shape‐programmable, stretchable, and omnidirectional acoustic ...
TaeGyeong Lim, Se Young Lee, Dohyung Lee, Baek Heon Lim, Jeongbo Lee, Wooseok Song, Sun Sook Lee, Sungwoong Park, Jin Kim, Soonmin Yim, Ki‐Seok An, Saewon Kang   +11 more
wiley   +1 more source

Ion Crowding Effect in Unilaterally Downsized Perovskite Memristors

Advanced Science, EarlyView.
The downscaling of perovskite memristors incorporating monocrystalline nanoplates is accompanied by an ion crowding effect, which greatly enhances the local electric field in the vicinity of electrode. The highly controlled crowding of anions and vacancies results in anisotropic switching characteristics as well as unique morphology modification ...
Conghui Tan, Meiqi An, Weili Liu, Haotian Wang, Shuai Yang, Jing Li, Jianliang Li, Yingmin Luo, Chao Wang, Jiao Xu, Yaodan Chi, Yiming Yang   +11 more
wiley   +1 more source

Annealing‐Induced Plasticity and Strengthening in Metallic Glasses

Advanced Science, EarlyView.
This work challenges the dogma that annealing inevitably embrittles metallic glasses. We demonstrate that sub‐Tg annealing, guided by positive mixing enthalpy and constrained kinetics, can drive a self‐organized compositional fluctuation that creates an interface‐free heterogeneous structure.
Yingjie Zhang, Jinyue Wang, Leqing Liu, Yuan Wu, Yi‐huan Cao, Jiqi Yu, Zhen Tian, Zhichao Lu, Fengshou Li, Qiang Chen, Guosheng Zhang, Laiquan Shen, Yong Yu, Hui Wang, Suihe Jiang, Xiaobin Zhang, Xiongjun Liu, Zhaoping Lu   +17 more
wiley   +1 more source

Towards a more responsible sustainable innovation assessment and management culture in Europe

Engineering Management in Production and Services, 2017
This article presents new concepts and practical approaches resulting from the piloting of CASI-F - a common framework for the assessment and management of sustainable innovation (SI).
Popper Rafael, Popper Monika, Velasco Guillermo   +2 more
doaj   +1 more source

MAJOR THEMES IN OUR FOREIGN POLICY [PDF]

International Relations/Trade,
Popper, David H.
core   +1 more source