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N. Sun

As seen in: Nature, Science Magazine, Canadian Journal of Cardiology
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Articles by N. Sun

Coupled watershed and estuary modeling of microplastic transport and retention in the Delaware river basin

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By Z. Duan, Y. K. Huang, M. S. Wigmosta, Z. Li, N. Sun, T. S. Wang, Z. Yang, B. W. Maurer
| Nature Verified
Abstract Microplastics (MPs) are an emerging environmental concern owing to their widespread presence and ecological impacts. We develop a coupled watershed–estuary modeling framework to simulate MP transport from terrestrial sources to estuarine systems. The Distributed Hydrology Soil Vegetation Model (DHSVM) is enhanced to represent point and nonpoint MP sources and is coupled with the Finite Volume Community Ocean Model (FVCOM) to capture estuarine transport.
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DEVELOPING A PATIENT INFORMATION TOOL FOR PREGNANT INDIVIDUALS REQUIRING URGENT IMAGING TO RULE OUT PULMONARY EMBOLISM: A NEEDS' ASSESSMENT FROM A PATIENTS' PERSPECTIVE

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By S. Hamel, S. Ouellet, C. Simard, M. Koolian, A. Robert, K. Wou, S. W. Lam, S. St-Georges, V. Tagalakis, A. De Pokomandy, L. S. Snell, N. Sun, I. Malhamé
| Canadian Journal of Cardiology Verified
BACKGROUND Computed tomography pulmonary angiogram (CTPA) and lung scintigraphy with ventilation/perfusion scan (V/Q scan) are the main diagnostic imaging modalities for pulmonary embolism (PE) in pregnancy. While being associated with ionizing radiation, they are considered safe and well below the radiation threshold associated with fetal toxicities. Counselling on urgent diagnostic imaging to rule out PE in pregnancy may be improved with use of a standardized tool.
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Volcanic origin for Younger Dryas geochemical anomalies ca. 12,900 cal B.P.

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By of Houston Houston, of Texas Houston, S. Forman, N. Sun, A. D. Brandon
| Science Magazine Verified
Abstract The Younger Dryas (YD) abrupt cooling event ca. 12.9 ± 0.1 ka is associated with substantial meltwater input into the North Atlantic Ocean, reversing deglacial warming. One controversial and prevailing hypothesis is that a bolide impact or airburst is responsible for these environmental changes. Here, highly siderophile element (HSE; Os, Ir, Ru, Pt, Pd, and Re) abundances and 187Os/188Os ratios were obtained in a well-dated sediment section at Hall’s Cave, TX, USA to test this hypothesis.
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