Results 141 to 150 of about 858,915 (264)

Carboxylate‐Driven Metal Pre‑Fixation COF@MOF Synthesis: Enabling Tailored Structural, Dimensional, and Defect Engineering

open access: yesAdvanced Science, EarlyView.
A universal metal pre‐fixation (MPF) strategy directs the precise crystallization of diverse metal‐organic frameworks (Co‐MOF, ZIF‐8, Fe‐MOF, UIO‐66) on covalent organic framework (PY‐COF) scaffolds. The resulting hierarchical hybrids exhibit tunable porosity, structural defective and dimensional, as well as enhanced performance in CH4/C2H6/C3H8 ...
Ying Zhao   +5 more
wiley   +1 more source

Electronic Structure Effects During Cooperative Phase Transitions in Organic Semiconductor Single Crystals

open access: yesAdvanced Electronic Materials, EarlyView.
A cooperative phase transition in the organic semiconductor ditBu‐BTBT crystal around 70°C reorganizes molecular structure and dynamics, altering its electronic properties. Soft x‐ray reflectivity and optical spectroscopy reveal shifts in electronic resonances and a widening of the optical bandgap. The transition reduces intermolecular interactions and
Giulia Giovanelli   +10 more
wiley   +1 more source

Kenyan Farmers' Policy Priorities During Economic Crisis and Stability: Insights From a Best‐Worst Scaling Experiment

open access: yesApplied Economic Perspectives and Policy, EarlyView.
ABSTRACT Amid rising food and fertilizer prices, understanding farmers' policy preferences is critical for effective crisis response. We use best‐worst scaling experiment to assess Kenyan mobile‐owning crop farmers' preferences for government support under high and normal price scenarios.
Mywish K. Maredia   +4 more
wiley   +1 more source

En otras palabras, casi lo mismo

open access: yesIkala: Revista de Lenguaje y Cultura, 2011
Carmen África Vidal
doaj  

Geospatial mapping of malaria risk in flood-prone zones of Sub-Saharan Africa. [PDF]

open access: yesSci Rep
Eudaric J   +7 more
europepmc   +1 more source

Sustainable Productivity Growth in Agriculture: The Role of Shifts in R&D Investments and Technology

open access: yesApplied Economic Perspectives and Policy, EarlyView.
ABSTRACT The objective of the paper is to evaluate the long‐term prospects of sustainable productivity growth linked to plausible assumptions on public agricultural R&D investments as the key productivity driver. Second, it investigates the role of changing R&D focus from yield maximization to input saving technologies (fertilizers and pesticides). The
Zuzana Smeets Křístková   +4 more
wiley   +1 more source

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