Results 141 to 150 of about 3,118 (267)

Backtesting de inversiones creativas

En este proyecto se van a plantear diferentes estrategias a la hora de invertir que no son muy convencionales, pero que tras realizar backtesting se va a poder observar si son o no rentables. Para su comparación con inversiones reales se escogerán diferentes índices o acciones y así se verá cuán interesantes son.
Cordero Cápitas, Álvaro, Del Río Gámez, José Antonio, Gómez Fernández, Notkero, Manzanas Esteban, Cristian, Viejo Sánchez, David   +4 more
openaire   +1 more source

Electrically Coded Retinomorphic Spectrophotodetector

Advanced Materials, EarlyView.
Self‐powered retinomorphic pyro‐photodetector is demonstrated that avoids machine‐learning post‐processing and covers 365–940 nm. Electrostatic balancing of built‐in potential produces an electrical wavelength code, delivering <3 nm wavelength decoding accuracy with ∼46 µs response.
Mohit Kumar, Hyunmin Dang, Hyungtak Seo
wiley   +1 more source

Does investment in COVID-19 information systems strengthen national digital health architecture? Lessons learned from Burkina Faso, Indonesia, Mali and Suriname. [PDF]

Oxf Open Digit Health
Boyle C, Madevu-Matson C, Rachmanto A, Kunaka D, Gilliss L, McManus L, Kouyate M, Aruan M, Parmawaty N, Kebe R, Sewradj V, Watson-Grant S.   +11 more
europepmc   +1 more source

[Call for emergency action to limit global temperature increases, restore biodiversity, and protect health]. [PDF]

Gac Sanit, 2021
Atwoli L, Baqui AH, Benfield T, Bosurgi R, Godlee F, Hancocks S, Horton R, Laybourn-Langton L, Monteiro CA, Norman I, Patrick K, Praities N, Rikkert MGMO, Rubin EJ, Sahni P, Smith R, Talley N, Turale S, Vázquez D.   +18 more
europepmc   +1 more source

Inversiones y crecimiento económico

, 2005
No presenta ...
openaire   +1 more source

Reversible Hydration Tuning of Polar Order and Large Nonlinear Optical Response in a 2D van der Waals Crystal, LiInP2S6

Advanced Materials, EarlyView.
Hydration‐induced symmetry breaking transforms layered LiInP2S6${\rm LiInP}_2{\rm S}_6$ from a nonpolar to a chiral‐polar phase, producing a giant enhancement of non‐resonant second‐harmonic generation. The reversible tuning of polar order through molecular intercalation establishes a strategy for dynamically controlling nonlinear optical ...
Jadupati Nag, Saugata Sarker, Michael J. Waters, Safdar Imam, Himirkanti Sarkar, Anthony Richardella, James M. Rondinelli, Mercouri G. Kanatzidis, Venkatraman Gopalan   +8 more
wiley   +1 more source

Reconfigurable Ferroelectric‐Like Two‐Dimensional Electron Gas at Room Temperature

Advanced Materials, EarlyView.
We demonstrate the realization of a novel ferroelectric‐like two‐dimensional electron gas (2DEG) based on the epitaxial interface between SrO‐terminate SrTiO3 and ferroeletric KNb0.5Na0.5O3${\rm KNb}_{0.5}{\rm Na}_{0.5}{\rm O}_3$ thin films. We show nonvolatile control of the transport properties enabling spatially reconfigurable devices in which ...
Martando Rath, Yu Chen, Daniela Stornaiuolo, Aravind Raji, Alexandre Gloter, Antonio Cassinese, Andrea Rubano, Alessia Sambri, Domenico Paparo, Emiliano Di Gennaro, Jérôme Lecourt, Wilfrid Prellier, Francesco Rosa, Nicholas B. Brookes, Giacomo Ghiringhelli, Daniele Preziosi, Marco Salluzzo   +16 more
wiley   +1 more source

Following the roadmap outlined by the World health Organization: Innovation for the control of chronic noncommunicable diseases [PDF]

Biomedica
Peña-Silva RA, Reyes-González JS.
europepmc   +1 more source

Inversiones extranjeras en España

, 1968
"Este Artículo pertenece a la sección En punto. "
openaire   +2 more sources

Photoactive Tweezers

Advanced Materials, EarlyView.
A photoactive tweezers system based on photoactive colloids is developed and systematically investigated in this study. Through experimental and theoretical methods, we demonstrate that the photoredox reaction catalyzed by a dye‐sensitized TiO2 particle generates a strong positive phototaxis, enabling self‐entrapment in the beam center.
Jingyuan Chen, Qingxin Guo, Shiwei Zhang, Donghao Cui, Changjin Wu, Pei Xu, Wei Wang, Kai Lou, Binglin Zeng, Jinyao Tang   +9 more
wiley   +1 more source