Results 11 to 20 of about 32,573 (181)

Seasonality of nitrogen sources, cycling, and loading in a New England river discerned from nitrate isotope ratios [PDF]

Biogeosciences, 2021
Coastal waters globally are increasingly impacted due to the anthropogenic loading of nitrogen (N) from the watershed. To assess dominant sources contributing to the eutrophication of the Little Narragansett Bay estuary in New England, we carried out an ...
V. R. Rollinson, J. Granger, S. C. Clark, M. L. Blanusa, C. P. Koerting, J. M. P. Vaudrey, L. A. Treibergs, L. A. Treibergs, H. C. Westbrook, H. C. Westbrook, C. M. Matassa, M. G. Hastings, C. R. Tobias   +12 more
doaj   +1 more source

High contribution of anthropogenic combustion sources to atmospheric inorganic reactive nitrogen in South China evidenced by isotopes [PDF]

Atmospheric Chemistry and Physics, 2023
Due to the intense release of reactive nitrogen (Nr) from anthropogenic activity, the source layout of atmospheric nitrogen aerosol has changed. To comprehensively clarify the level, sources, and environmental fate of NH4+ and NO3-, their concentrations ...
T. Li, T. Li, T. Li, J. Li, J. Li, Z. Sun, Z. Sun, H. Jiang, C. Tian, G. Zhang, G. Zhang   +10 more
doaj   +1 more source

Downpour dynamics: outsized impacts of storm events on unprocessed atmospheric nitrate export in an urban watershed [PDF]

Biogeosciences, 2023
Water quality impacts of stream water nitrate (NO3-) on downstream ecosystems are largely determined by the load of NO3- from the watershed to surface waters.
J. T. Bostic, J. T. Bostic, D. M. Nelson, K. N. Eshleman   +3 more
doaj   +1 more source

Ultradian rhythms in shell composition of photosymbiotic and non-photosymbiotic mollusks [PDF]

Biogeosciences, 2023
The chemical composition of mollusk shells is a useful tool in (paleo)climatology since it captures inter- and intra-annual variability in environmental conditions. Trace element and stable isotope analysis with improved sampling resolution now allows in
N. J. de Winter, N. J. de Winter, D. Killam, L. Fröhlich, L. de Nooijer, W. Boer, B. R. Schöne, J. Thébault, G.-J. Reichart, G.-J. Reichart   +9 more
doaj   +1 more source

Research and application of SVG technology in coal mine monitoring and control system

Gong-kuang zidonghua, 2016
In order to release coal mine real-time data with high efficiency and in the form of graphic image, the paper proposed to apply SVG technology in coal mine monitoring system, and introduced real-time data release scheme based on SVG technology.
CHEN Yunqi
doaj   +1 more source

Osteocutaneous-flap-related osteomyelitis following mandibular reconstruction: a cohort study of an emerging and complex bone infection [PDF]

Journal of Bone and Joint Infection, 2022
Osteocutaneous flap (OCF) mandible reconstruction is at high risk for surgical site infection. This study aimed to describe diagnosis, management, and outcome of OCF-related osteomyelitis.
C. Javaux, C. Javaux, C. Daveau, C. Bettinger, M. Daurade, C. Dupieux-Chabert, C. Dupieux-Chabert, C. Dupieux-Chabert, F. Craighero, C. Fuchsmann, P. Céruse, A. Gleizal, N. Sigaux, T. Ferry, T. Ferry, T. Ferry, F. Valour, F. Valour, F. Valour   +18 more
doaj   +1 more source

Porphyromonas gingivalis Outer Membrane Vesicles-Associated DNA Triggers Inflammation by Inducing IL-6 in Astrocytes. [PDF]

Mol Oral Microbiol
Pg releases OMVs which contain Pg genomic DNA. The Pg OMVs‐associated DNA is incorporated into astrocytes via endocytosis and increases IL‐6 mRNA expression via TLR9. These effects of Pg OMVs may induce neuroinflammation, which could contribute to the onset and progression of AD in periodontal disease.
Takai A, Yoshida K, Hiroshima Y, Ikuta A, Seyama M, Uemura Y, Yumoto H, Ozaki K.   +7 more
europepmc   +2 more sources

External stenting of vein grafts in coronary artery bypass grating: interim results from a two centers prospective study

Journal of Cardiothoracic Surgery, 2021
Background previous studies evaluating external stents for saphenous vein grafts (SVG) in CABG were limited to on-pump isolated CABG and single grafting technique with one external stent per patient.
Luca Paolo Weltert, Katia Audisio, Alessandro Bellisaro, Gianluca Bardi, Roberto Flocco, Ruggero De Paulis, Paolo Centofanti   +6 more
doaj   +1 more source

Technical note: Analytical protocols and performance for apatite and zircon (U–Th) ∕ He analysis on quadrupole and magnetic sector mass spectrometer systems between 2007 and 2020 [PDF]

Geochronology, 2021
Apatite and zircon (U–Th) / He thermochronological data are obtained through a combination of crystal selection, He content measurement by crystal heating with analysis using noble gas mass spectrometry, and measurement of U, Th, and Sm contents by ...
C. Gautheron, R. Pinna-Jamme, A. Derycke, F. Ahadi, C. Sanchez, F. Haurine, G. Monvoisin, D. Barbosa, G. Delpech, J. Maltese, P. Sarda, L. Tassan-Got   +11 more
doaj   +1 more source

The spatial ventricular gradient is associated with adverse outcomes in acute pulmonary embolism

Annals of Noninvasive Electrocardiology, 2023
Background The spatial ventricular gradient (SVG) is a vectorcardiographic measurement that reflects cardiac loading conditions via electromechanical coupling.
Hans Friedrich Stabenau, Mason Marcus, Jason D. Matos, Ian McCormick, Diana Litmanovich, Warren J. Manning, Brett J. Carroll, Jonathan W. Waks   +7 more
doaj   +1 more source