Results 71 to 80 of about 9,339 (117)

Source Prediction and Distribution of Organic Matter Across a Land to Ocean Sediment Transect: An Integrative Biogeochemical and Multivariate Machine Learning Approach

Journal of Geophysical Research: Biogeosciences, Volume 131, Issue 3, March 2026.
Abstract Identifying organic matter (OM) distribution and origins in sediments is vital for distinguishing archival records, depositional dynamics, and extent of terrigenous inputs to marine systems. However, degradation and modification of OM before deposition can camouflage and mask its source signals in sedimentary sinks.
Yeganeh Mirzaei, Cameron Skinner, Gregor Kos, Yves Gélinas   +3 more
wiley   +1 more source

Polar Front System Variability and Its Control on Export Rain Ratio Over the Past 800 ka: Implication for Atmospheric pCO2 Changes

Paleoceanography and Paleoclimatology, Volume 41, Issue 3, March 2026.
Abstract Little is known about long‐term variability in the organic carbon to carbonate carbon export rain ratio, despite its key role in the global carbon cycle. Here, we reconstruct glacial‐interglacial changes in the sedimentary rain ratio over the Southern Ocean, using micropaleontological (coccoliths and foraminifera) and geochemical (CaCO3, Total
Yu Wang, Stéphanie Duchamp‐Alphonse, Sophie Sépulcre, Margaux Brandon, Elisabeth Michel, Nicolas Pige, Xavier Crosta, Johan Étourneau, Vikki Lowe, Annachiara Bartolini, Franck Bassinot, Gulay Isguder, Patricia Richard, Fatima Manssouri, Julius Nouet, Ludwig Jardillier, Samuel L. Jaccard   +16 more
wiley   +1 more source

Identifying Clinical Variations Across NSW Public Dental Service: An Essential Step to Develop a Roadmap for Value‐Based Oral Healthcare

Australian Dental Journal, Volume 71, Issue 1, Page 26-38, March 2026.
ABSTRACT Objective This research examines the extent of clinical variation across the NSW public dental service, the largest in Australia. Findings may assist policy makers in reducing variation of care and inequity towards value‐based oral healthcare. Methods Four years of demographic and treatment data, for 741,450 patients between 1 July 2019 and 30
Albert Yaacoub, Tony Skapetis
wiley   +1 more source

Distinct, Depth‐Stratified Communities of Heterotrophic, Mixotrophic, and Parasitic Dinoflagellates and Ciliates in the Subarctic Northeast Pacific Euphotic Zone

Journal of Eukaryotic Microbiology, Volume 73, Issue 2, March/April 2026.
ABSTRACT Dinoflagellates and ciliates are important grazers of primary production in the Northeast Pacific but knowledge of their taxonomic composition and depth‐distribution is limited. These organisms also display a variety of heterotrophic feeding modes including heterotrophy, mixotrophy, and parasitism.
Erin L. Jones, Ewelina Rubin, Margaret Rettig, Heather McNair, Susanne Menden‐Deuer, Tatiana A. Rynearson   +5 more
wiley   +1 more source

Effect of Ginger Extracts in Remineralization of White Spot Lesions: A Systematic Review and Meta-analysis. [PDF]

Int J Clin Pediatr Dent
Kannan S, Thoppe Dhamodharan YK, Ravichandran H, Asokan S, Pollachi-Ramakrishnan GP.   +4 more
europepmc   +1 more source

Sediment Legacy Organic Matter Amplifies Nutrient‐Driven Coastal Hypoxia: A Coupled Benthic‐Pelagic Modeling Study

Geophysical Research Letters, Volume 53, Issue 4, 28 February 2026.
Abstract Coastal hypoxia is profoundly affected by sediment depletion of oxygen and recycling of nutrients—processes sustained by long‐term accumulation of sediment organic matter. While sediment‐water interactions are widely recognized, quantitative understanding of sediment legacy effects remains limited. To address this gap, we developed a two‐layer
Zheng Chen, Liuqian Yu, Jiying Li, Jing Sun   +3 more
wiley   +1 more source

Effectiveness of remineralizing dentifrices against caries lesions: A systematic approach. [PDF]

J Taibah Univ Med Sci
Zahra FT, Asghar M, Zafar MS, Shah AT, Kaleem M.   +4 more
europepmc   +1 more source

Lower Glacial Oxygen in the Eastern Equatorial Pacific Concentrated in the Deep Sea

Geophysical Research Letters, Volume 53, Issue 4, 28 February 2026.
Abstract Oxygen in the global oceans has declined since the 1960s, including in the Eastern Equatorial Pacific (EEP). Reconstructions of EEP glacial oxygenation help advance understanding of current and projected ocean deoxygenation. Previous estimates of the glacial oxygen deficient zones (ODZs) in the upper EEP are poorly constrained. Here we include
Wanyi Lu, Delia W. Oppo, Xiaoying Jiang, Haowen Dang, Zhimin Jian   +4 more
wiley   +1 more source

Effect of nanohydroxyapatite paste after different pretreatment techniques on remineralization and color change of white spot lesions in children: a randomized control study. [PDF]

BMC Oral Health
El Mansy MM, Saleh RS, Rashed MF, El-Motayam AK.   +3 more
europepmc   +1 more source

Seasonal Shift of Dissolved Organic Matter Stoichiometry in the Surface North Pacific Subtropical Gyre: Regulation by Enhanced N2 Fixation and DOP Utilization

Geophysical Research Letters, Volume 53, Issue 4, 28 February 2026.
Abstract Dissolved organic matter (DOM) pool acts as both nutrient source and sink in the oligotrophic surface ocean. However, the drivers of seasonal variations in DOM stoichiometry and their relationship to nutrient cycling remain poorly understood.
Lusong Zhang, Zuozhu Wen, Haizheng Hong, Sijing Kang, Peng Jiang, Shanshan Lin, Wen Lin, Dalin Shi, Xiaolin Li   +8 more
wiley   +1 more source