Results 51 to 60 of about 17,921 (226)

Photodegradation Increases Solubility of Grass Litter Carbon

open access: yesJournal of Geophysical Research: Biogeosciences, Volume 131, Issue 4, April 2026.
Abstract Solar radiation is an important factor influencing dryland decomposition. Research suggests that, in the presence of water, previously irradiated plant litter experiences greater microbial decay than litter which was not exposed to radiation. The mechanism of this photopriming of microbial decomposition is unclear.
Trevor L. Romich, Jennifer Y. King
wiley   +1 more source

Optimal control for halo orbit missions [PDF]

open access: yes, 2000
This paper addresses the computation of the required trajectory correction maneuvers (TCM) for a halo orbit space mission to compensate for the launch velocity errors introduced by inaccuracies of the launch vehicle.
Koon, Wang Sang   +6 more
core   +1 more source

Soil texture prevails over vegetation change in determining soil organic carbon storage in an African savanna

open access: yesJournal of Ecology, Volume 114, Issue 4, April 2026.
We compared soil organic carbon (SOC) across six savanna–forest boundaries in South Africa. Surprisingly, savanna and forest soils contained comparable SOC stocks. While vegetation change shifted the carbon source from C4‐grasses to C3‐trees, total carbon storage was driven by local soil texture (clay/silt), proving that increasing tree cover does not ...
Yong Zhou   +5 more
wiley   +1 more source

Validating Journal Cancellation Decisions in the Sciences: A Report Card

open access: yesIssues in Science and Technology Librarianship, 1998
Few libraries have remained unaffected by the serials pricing crisis of the past several years. The University of California, Santa Barbara (UCSB) Library has conducted five serials cancellations projects since 1987 -- 1987, 1989, 1991, 1994, and 1996 ...
Andrea L. (Andrea Louise) Duda   +1 more
doaj   +1 more source

The importance of open data describing prey item species lists for endangered species

open access: yesEcological Solutions and Evidence, 2023
Open data and code can be transformative tools in supporting evidence‐informed solutions for stakeholders. Data can take many forms of evidence in the discipline of applied ecology including tables, lists, maps and visualizations to name a few ...
C. J. Lortie   +3 more
doaj   +1 more source

Understanding the Interplay Between Thermal Activation, Diffusion, and Phase Segregation of Molecular Dopants Blended with Polymeric Semiconductors

open access: yesAdvanced Electronic Materials, Volume 12, Issue 6, 23 March 2026.
The use of air stable but thermally labile molecules provides an efficient strategy for the N‐type doping of organic semiconductors with relatively low electron affinities. Design criteria for efficient dopants should also take into account diffusion and phase segregation that cannot be decoupled from thermally activated doping.
Francesca Pallini   +15 more
wiley   +1 more source

CUES – A Study Site for Measuring Snowpack Energy Balance in the Sierra Nevada

open access: yesFrontiers in Earth Science, 2015
Accurate measurement and modeling of the snowpack energy balance are critical to understanding the terrestrial water cycle. Most of the water resources in the western US come from snowmelt, yet statistical runoff models that rely on the historical record
Edward H. Bair   +5 more
doaj   +1 more source

Interstellar photovoltaics

open access: yesScientific Reports, 2023
The term 'Solar Cell’ is commonly used for Photovoltaics that convert light into electrical energy. However, light can be harvested from various sources not limited to the Sun. This work considers the possibility of harvesting photons from different star
Nora Schopp   +9 more
doaj   +1 more source

Potential Impacts of Climate Interventions on Marine Ecosystems

open access: yesReviews of Geophysics, Volume 64, Issue 1, March 2026.
Abstract Rising global temperatures pose significant risks to marine ecosystems, biodiversity, and fisheries. Recent comprehensive assessments suggest that large‐scale mitigation efforts to limit warming are falling short, and all feasible future climate projections, including those that represent optimistic emissions reductions, exceed the Paris ...
Kelsey E. Roberts   +25 more
wiley   +1 more source

Image Analysis for Facility Siting: a Comparison of Lowand High-altitude Image Interpretability for Land Use/land Cover Mapping [PDF]

open access: yes, 1982
For two test sites in Pennsylvania the interpretability of commercially acquired low-altitude and existing high-altitude aerial photography are documented in terms of time, costs, and accuracy for Anderson Level II land use/land cover mapping ...
Borella, H. M.   +4 more
core   +1 more source

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