130 Works

Numerical data of hydrodynamics and sediment transport for three reference scenarios: N1, P, and N2

Jian Zhou & Mark Stacey
The residual sediment transport in tidally energetic estuarine channels is investigated by means of idealized cross‐sectional modeling. The lateral bathymetric variation follows a Gaussian profile, assuming longitudinal uniformity. The total along‐channel residual sediment flux is decomposed into contributions from an advective flux and a tidal pumping flux. Two important mechanisms are found to modify the tidal covariance between sediment concentration and current velocity, thereby contributing to the tidal pumping of sediment. First, longitudinal and lateral...

Data from: Knowledge, provision of information and barriers to high quality medication abortion provision by pharmacists in Uttar Pradesh, India

Nadia Diamond-Smith, Joanna Percher, Malvika Saxena, Pravesh Dwivedi & Aradhana Srivastava
Background: Almost three quarters of the 16 millions abortions in India were medication abortion (MA) purchased outside of facilities. Past research has shown low quality of care given to clients seeking MA from pharmacists in this setting. Most purchasers of MA from pharmacies in India are men, further complicating the pathway to high quality information for women taking MA. Developing interventions that can improve the information and quality of interactions for women obtaining MA through...

Data from: VolcanoFinder: genomic scans for adaptive introgression

Derek Setter, Sylvain Mousset, Xiaoheng Cheng, Rasmus Nielsen, Michael DeGiorgio & Joachim Hermisson
Recent research shows that introgression between closely-related species is an important source of adaptive alleles for a wide range of taxa. Typically, detection of adaptive introgression from genomic data relies on comparative analyses that require sequence data from both the recipient and the donor species. However, in many cases, the donor is unknown or the data is not currently available. Here, we introduce a genome-scan method---VolcanoFinder---to detect recent events of adaptive introgression using polymorphism data...

Large losses of ammonium-nitrogen from a rice ecosystem under elevated CO2

Lei Cheng, Chenchao Xu, Kaihang Zhang, Wanying Zhu, Jing Xiao, Chen Zhu, Naifang Zhang, Fangjian Yu, Shuyao Li, Chunwu Zhu, Qichao Tu, Xin Chen, Jianguo Zhu, Shuijin Hu, Roger T Koide & Mary K Firestone
Inputs of nitrogen into terrestrial ecosystems, mainly via the use of ammonium-based fertilizers in agroecosystems, are enormous, but its fate under elevated atmospheric carbon dioxide (CO2) is not well understood. We have taken advantage of a 15-year free air CO2 enrichment study to investigate the influence of elevated CO2 on the transformation of ammonium-nitrogen in a rice ecosystem in which ammonium is usually assumed to be stable under anaerobic conditions. We demonstrate that elevated CO2...

Nitrogen isotope fractionation during archaeal ammonia oxidation: coupled estimates from measurements of residual ammonium and accumulated nitrite

Wolfgang Wanek & Maria Mooshammer
The naturally occurring nitrogen (N) isotopes, 15N and 14N, exhibit different reaction rates during many microbial N transformation processes, which results in N isotope fractionation. Such isotope effects are critical parameters for interpreting natural stable isotope abundances as proxies for biological process rates in the environment across scales. The kinetic isotope effect of ammonia oxidation (AO) to nitrite (NO2-), performed by ammonia-oxidizing archaea (AOA) and bacteria (AOB), is generally ascribed to the enzyme ammonia monooxygenase...

Registration Year

  • 2020

Resource Types

  • Dataset


  • University of California, Berkeley
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  • University of Pennsylvania