Results 71 to 80 of about 45,674 (312)

Stratigraphy and development of c. 17 000 year old Lake Maratoto, North Island, New Zealand, with some inferences about postglacial climatic change [PDF]

open access: yes, 1985
The stratigraphy and geomorphology of Lake Maratoto and its surrounds were investigated as part of a programme of paleolimnological studies based on sediment cores from lakes in northern North Island.
Lowe, David J., Green, John D.
core   +1 more source

SpaMode: A Broadly Applicable Framework for Deciphering Spatial Multi‐Omics Using Multimodal Mixture of Disentangled Experts

open access: yesAdvanced Science, EarlyView.
SpaMode introduces a versatile framework for spatial multi‐omics integration across vertical, horizontal, and mosaic scenarios. By disentangling modality‐invariant and variant features through a mixture‐of‐experts mechanism, it adaptively reconfigures spatially heterogeneous signals.
Xubin Zheng   +6 more
wiley   +1 more source

Arctic deltaic lake sediments as recorders of fluvial organic matter deposition

open access: yesFrontiers in Earth Science, 2016
Arctic deltas are dynamic and vulnerable regions that play a key role in land-ocean interactions and the global carbon cycle. Delta lakes may provide valuable historical records of the quality and quantity of fluvial fluxes, parameters that are ...
Jorien E Vonk   +14 more
doaj   +1 more source

Assessing the spatial and temporal variability and related environmental risks of toxic metals in Lake Asejire, south-western Nigeria

open access: yesScientific African, 2020
Lake Asejire in Nigeria is polluted with untreated effluent from nearby aquacultural, urban, agricultural and industrial zones. The metal laden effluent pose a hazard to the health of fish and fish consumers in the lake.
Beaven Utete, Bernadette.T. Fregene
doaj   +1 more source

Speciation and Dynamics of Phosphorus in Relation to Lake Restoration Methods [PDF]

open access: yes, 2010
Lake Okaro is a small, warm monomictic lake in the central North Island of New Zealand. It has remained highly eutrophic despite an intensive catchment and in-lake restoration program which commenced in 2003.
Özkundakci, Deniz
core  

Modification and implementation of a new method for methane analysis in lake sediments [PDF]

open access: yes, 2013
Lake sediments are recognized today as a significant source of methane, which itself is a strong and a quickly increasing greenhouse gas in the atmosphere.
Ndayisaba, Cyprien
core   +1 more source

Aptamer‐Directed Porous DNA Nanocomposite Hydrogel for Active Pulp Preservation: Immunomodulation, Stem Cell Recruitment and Reparative Dentinogenesis

open access: yesAdvanced Science, EarlyView.
This study presents an injectable DNA‐based porous hydrogel integrating catechol motifs and targeting aptamers for pulpitis management. Upon in situ crosslinking, the scaffold actively recruits endogenous dental pulp stem cells, restores redox homeostasis, and modulates immune responses.
Luhui Cai   +9 more
wiley   +1 more source

Microbiology of sediments in lakes of differing degrees of eutrophication [PDF]

open access: yes, 1980
A general survey was carried out on the sediments of seventeen lakes, ranging from oligotrophic to eutrophic, in the English Lake District. Several variables not directly concerned with the population of bacteria were measured to provide background ...
Godinho Orlandi, Mirna, J. L.
core  

Cadmium transport in sediments by tubificid bioturbation: An assessment of model complexity [PDF]

open access: yes, 2006
Biogeochemistry of metals in aquatic sediments is strongly influenced by bioturbation. To determine the effects of biological transport on cadmium distribution in freshwater sediments, a bioturbation model is explored that describes the conveyor-belt ...
Boudou, A.   +11 more
core   +1 more source

Cobalt Single‐Atom Catalysts for Ultrafast Sulfamethoxazole Degradation: Unveiling the Chloride‐Ion‐Enhanced Formation of Co(IV)=O

open access: yesAdvanced Science, EarlyView.
An atomically dispersed Co–N4 single‐atom catalyst rapidly activates peroxymonosulfate to remove the antibiotic sulfamethoxazole from water. Common ions have little impact, but chloride dramatically speeds degradation by promoting a high‐valent Co(IV) = O oxidant via in situ HOCl–catalyst electron transfer.
Anting Ding   +6 more
wiley   +1 more source

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