Results 111 to 120 of about 584,992 (269)
Agronomía Costarricense, 2009 Se estudió el efecto residual de la aplicación de P como fertilizante al cultivo de la papa en un suelo Hydric Hapludands de la Hacienda Juan Viñas, aplicando 0, 150, 300, 450 y 600 kg.ha-1 de P2O5 por 1 y 2 años consecutivos.
Alfredo Alvarado +4 more
doaj
Internal Migration, Selection Bias and Human Development: Evidence from Indonesia and Mexico [PDF]
The aim of this paper is to measure the returns to migration using non-experimental data taking both observed and unobserved characteristics into account. A significant challenge related to migration research and the issues of unobserved heterogeneity is
Deb, Partha, Seck, Papa
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 +10 more
wiley +1 more source
Papa pajchay, Primer aporte de las papas
Allpanchis, 1971 El papa pajchay o primer aporque de las papas se hace en forma colectiva o mink'a. En el distrito de Ocobamba no ha perdido nada de su originalidad. La persona que hace ejecutar el trabajo en su chacra, elige con anticipación a un capitán, cargo que recae generalmente en alguno de sus compadres u otros parientes espirituales. El capitán es el encargado
openaire +2 more sources
Family reunification ideals and the practice of transnational reproductive life among Africans in Europe [PDF]
-family ...
Caroline Bledsoe, Papa Sow
core
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 +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 +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 +17 more
wiley +1 more source
RIA: Revista Investigaciones Agropecuarias, 2003 La estimación de la radiación solar global constituye un procedimiento necesario cuando se carece de los registros observados en una región y existe la intención de evaluar los recursos de producción primaria de un cultivo.
A. De La Casa, G. Ovando, A. Rodríguez
doaj
Advanced Science, EarlyView.2D ferroelectrics materials enabling non‐volatile polarization memory, optical excitability, and neuromorphic processing within a unified material and provides a mechanistic analysis of polarization‐induced band modulation, including photon‐assisted domain reorientation, switching kinetics, and interfacial dipole coupling that governs resistive ...
Parthasarathi Pal +3 more
wiley +1 more source