Results 31 to 40 of about 40,131 (130)

Modified spin-wave theory of nuclear magnetic relaxation in one-dimensional quantum ferrimagnets: Three-magnon versus Raman processes

open access: yes, 2005
Nuclear spin-lattice relaxation in one-dimensional Heisenberg ferrimagnets is studied by means of a modified spin-wave theory. Calculating beyond the first-order mechanism, where a nuclear spin directly interacts with spin waves through the hyperfine ...
Beeman D.   +38 more
core   +1 more source

Politics and professionalism in community development: Examining intervention in the highlands of northern Thailand [PDF]

open access: yes, 2009
It has been suggested that the practice of international development assistance is so deeply problematic that the only moral choice is to abandon the work altogether.
Mckinnon, Katharine Islay
core  

Supersymmetric virtual effects in heavy quark pair production at LHC

open access: yes, 2004
We consider the production of heavy ($b,t$) quark pairs at proton colliders in the theoretical framework of the MSSM. Under the assumption of a "moderately" light SUSY scenario, we first compute the leading logarithmic MSSM contributions at one loop for ...
A. Denner   +16 more
core   +2 more sources

Characterizing the Unique Chemical Imprint of On‐Axis, Lower‐Temperature Hydrothermal Flow to the Deep Ocean (Southern East Pacific Rise, 16.5°–18.0°S)

open access: yesGeophysical Research Letters, Volume 53, Issue 7, 16 April 2026.
Abstract In addition to high‐temperature vents, lower‐temperature flow (LTF) (<300°C) is abundant along mid‐ocean ridges and contributes globally‐important fluxes of heat and water along with largely‐unconstrained geochemical influences on the ocean. We examined the impact of on‐axis LTF on the chemical composition of the overlying water column (<40 m ...
Laura E. Moore   +11 more
wiley   +1 more source

From Waste to Value: Conversion of Calcium Sulfate to Vaterite via Carbon Capture and Storage

open access: yesAdvanced Functional Materials, Volume 36, Issue 34, 27 April 2026.
This study introduces a new concept for carbon management that relies on the carbonation of industrial gypsum waste and yields phase‐pure vaterite at ambient conditions without any additives. The obtained vaterite is further shown to be a reactive material that develops compressive strength in aqueous suspensions like conventional cements.
Carlos Pimentel   +4 more
wiley   +1 more source

Barnes Hospital Bulletin [PDF]

open access: yes, 1970
https://digitalcommons.wustl.edu/bjc_barnes_bulletin/1057/thumbnail ...

core   +4 more sources

Atmospheric Ammonia Deposition: A Significant Source of Nitrogen to an Oligotrophic Lake and Its Watershed

open access: yesJournal of Geophysical Research: Biogeosciences, Volume 131, Issue 4, April 2026.
Abstract The increasing frequency of toxic cyanobacterial blooms (TCBs) in freshwater lakes in recent years has been problematic, both in terms of our understanding of basic drivers, and attempts to manage them. While phosphorus has been determined to limit the growth of blooms, some cyanophytes manufacture toxins with a high nitrogen (N) demand, so ...
D. P. Swaney   +5 more
wiley   +1 more source

Stochastic Facies Modeling of the Lower‐Burdekin Delta Aquifer Based on Lithological Interpretation From Legacy Boreholes

open access: yesWater Resources Research, Volume 62, Issue 4, April 2026.
Abstract The spatial heterogeneity of aquifer properties plays an important role in the movement of groundwater and contaminants. The characterization of heterogeneity from field observations is often needed to develop groundwater models used to inform management decisions.
Guillaume Pirot   +3 more
wiley   +1 more source

Quantifying Subsurface Hydrological Connectivity and Its Coupling With Structural Connectivity in Headwater Catchments

open access: yesWater Resources Research, Volume 62, Issue 4, April 2026.
Abstract Hydrological process connectivity (HPC) is a key control on rainfall‐runoff transformation in headwater catchments, as it governs when, where, and how subsurface flow pathways are dynamically activated through interactions with the catchment's hydrological structural connectivity (HSC).
Yaling Zhang   +8 more
wiley   +1 more source

Decoupled Climatic Drivers of Tree and Ground‐Layer Carbon Uptake in Mountain Ecosystems Around the World

open access: yesGlobal Change Biology, Volume 32, Issue 4, April 2026.
Across four continents, we investigated how temperature controls the productivity of high mountain vegetation. We found that the productivity of plants growing close to the ground (< 1 m) tends to be controlled by highly localised “microclimate” temperatures, while the productivity of trees was strongly linked to broader‐scale temperatures.
Max Mallen‐Cooper   +18 more
wiley   +1 more source

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