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BACKGROUND Wood vinegar (WV), a byproduct from the charcoal production process, has been reported to have excellent antioxidant capability by chemical examination. However, the biological effect of WV in living animals is still unknown. In this study, a simple model organism, the nematode Caenorhabditis elegans, was used as an in vivo system to assess the(More)
This paper introduces a supervised metric learning algorithm, called kernel density metric learning (KDML), which is easy to use and provides nonlinear, probability-based distance measures. KDML constructs a direct nonlinear mapping from the original input space into a feature space based on kernel density estimation. The nonlinear mapping in KDML embodies(More)
Northern Eurasian ecosystems play an important role in the global climate system. Northern Eurasia (NE) has experienced dramatic climate changes during the last half of the Climatic Change (2014) 126:413–427 DOI 10.1007/s10584-014-1234-9 Electronic supplementary material The online version of this article (doi:10.1007/s10584-014-1234-9) contains(More)
Additive tree models (ATMs) are widely used for data mining and machine learning. Important examples of ATMs include random forest, adaboost (with decision trees as weak learners), and gradient boosted trees, and they are often referred to as the best off-the-shelf classifiers. Though capable of attaining high accuracy, ATMs are not well interpretable in(More)
Soil carbon dynamics of terrestrial ecosystems play a significant role in the global carbon cycle. Microbial-based decomposition models have seen much growth recently for quantifying this role, yet dormancy as a common strategy used by microorganisms has not usually been represented and tested in these models against field observations. Here we developed an(More)
Maternal nutrition may influence metabolic profiles in offspring. We aimed to investigate the effect of maternal folic acid supplement on glucose metabolism in mouse offspring fed a high-fat diet (HFD). Sixty C57BL/6 female mice were randomly assigned into three dietary groups and fed the AIN-93G diet containing 2 (control), 5 (recommended folic acid(More)
Microbes influence soil organic matter decomposition and the long-term stabilization of carbon (C) in soils. We contend that by revising the representation of microbial processes and their interactions with the physicochemical soil environment, Earth system models (ESMs) will make more realistic global C cycle projections. Explicit representation of(More)
a Department of Earth, Atmospheric and Planetary Sciences, Purdue University, West Lafayette, IN 47907, USA b Department of Agronomy, Purdue University, West Lafayette, IN 47907, USA c College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China d Key Ecology and Environment Experimental Station for Field Scientific(More)