Results 101 to 110 of about 188,002 (210)

CO2 Reduction on Copper‐Nitrogen‐Doped Carbon Catalysts Tuned by Pulsed Potential Electrolysis: Effect of Pulse Potential

open access: yesAdvanced Functional Materials, Volume 36, Issue 21, 12 March 2026.
This study demonstrates that pulsed potential electrolysis significantly improves CO2 reduction performance on copper‐nitrogen doped carbon electrodes. The formation of cationic copper sites and metallic clusters as a function of applied intermittent potential leads to notable selectivity changes compared to potentiostatic reduction.
Dorottya Hursán   +13 more
wiley   +1 more source

Conclusions on the Way Forward for Evaluation in Difficult Times

open access: yesJournal of MultiDisciplinary Evaluation
Background: The evaluation profession faces unprecedented challenges in an era of global uncertainty, with shifting political climates, rising populism, and complex societal problems requiring innovative evaluation approaches.
Richard Boyle   +2 more
doaj   +1 more source

GAMMA: A Mathematica package for performing gamma-matrix algebra and Fierz transformations in arbitrary dimensions

open access: yes, 2001
We have developed a Mathematica package capable of performing gamma-matrix algebra in arbitrary (integer) dimensions. As an application we can compute Fierz transformations.Comment: 12 pages, LaTeX, v2: some clarifications added, updated package ...
Gran, Ulf
core  

Microsphere Autolithography—A Scalable Approach for Arbitrary Patterning of Dielectric Spheres

open access: yesAdvanced Functional Materials, Volume 36, Issue 19, 5 March 2026.
MicroSphere Autolithography (µSAL) enables scalable fabrication of patchy particles with customizable surface motifs. Focusing light through dielectric microspheres creates well defined, tunable patches via a conformal poly(dopamine) photoresist. Nearly arbitrary surface patterns can be achieved, with the resolution set by the index contrast between ...
Elliott D. Kunkel   +3 more
wiley   +1 more source

Linking Evaluation Theory and Practice: Exploring Ray Rist’s Enduring Legacy

open access: yesJournal of MultiDisciplinary Evaluation
Background: Over the course of his career, Ray C. Rist made substantial contributions to advancing evaluation theory and practice globally. This includes leading the International Research Group for Policy and Program Evaluation (INTEVAL) for nearly ...
Richard Boyle   +2 more
doaj   +1 more source

Flow Compensation Recovers Sensitivity Lost to Convection in Gradient‐Enhanced TOCSY NMR Experiments

open access: yesChemistry–Methods, Volume 6, Issue 3, March 2026.
Gradient‐enhanced TOCSY techniques are an essential tool in the NMR spectroscopist's toolkit. However, in the presence of convection, signal intensities can be severely diminished, an issue that is particularly common when using cryoprobes. Here, we present an easily implemented TOCSY experiment that reverses signal loss due to convection and ...
Elsa Caytan   +4 more
wiley   +1 more source

Modeling species co‐occurrence effects to inform invasive barred owl management and recovery of the northern spotted owl

open access: yesEcological Applications, Volume 36, Issue 2, March 2026.
Abstract Robust estimation of wildlife populations represents a cornerstone of wildlife research and provides critical information to guide management, including identifying at‐risk species, setting harvest rates, and evaluating predator and invasive species control programs.
Vaibhava Srivastava   +2 more
wiley   +1 more source

Order matters: Autocorrelation of temperature dictates extinction risk in populations with nonlinear thermal performance

open access: yesEcology, Volume 107, Issue 3, March 2026.
Abstract Forecasting the risks caused by climate change often relies upon combining species' thermal performance curves with expected statistical distributions of experienced temperatures, without considering the order in which those temperatures occur.
Alison J. Robey, David A. Vasseur
wiley   +1 more source

Una aproximación experimental a los sistemas dinámicos discretos con Mathematica

open access: yesNóesis, 2015
Experimentar con sistemas dinámicos a tiempo discreto, puede representar un recurso didáctico importante en la investigación de las propiedades de los sistemas dinámicos y de sus posibles aplicaciones a disciplinas como la economía.
Michael Rojas Romero
doaj  

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