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Environmental Factors - Wiley Online Library

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Last Updated: 08 June 2022

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Empirical relationships between environmental factors and soil organic carbon produce comparable prediction accuracy as the Machine Learning

"Accurate representation of environmental regulators of soil organic carbon stocks in Earth System Model land models may eliminate uncertainties in future carbonu2010 climate feedback estimates. " Using empirical correlations of environmental factors and SOC stocks to analyze land models can help modelers analyze forecast biases that cannot be achieved with the observed SOC stocks alone. We used 31 real environmental factors, field SOC data from the continental United States, and two Machine Learning methodologies [Random Forest and Generalized Additive Modeling] to identify key SOC stocks, establish causal correlations, analyze physical relationships, and compare the prediction accuracy of a simpler model built with the machine learning predictions.

Source link: https://onlinelibrary.wiley.com/doi/10.1002/saj2.20453


Detangling the role of environmental, social, and governance factors on M&A performance

"But have the single ESG factors the same effect on the value appreciation by financial markets?" The results of our empirical findings, which open new research avenues for the investigation of the different roles that ESG factors may play in influencing corporate decisions toward M&A transactions capable of value creation, were confirmed by the analysis of residuals and the Q-u2010Q map.

Source link: https://onlinelibrary.wiley.com/doi/10.1002/csr.2325


Interaction of cytochrome P450s with environmental risk factors increases their expression and risk to head and neck cancer

In cases with risk genotypes of CYPs and GSTM1 that resulted in a rise in risk to HNSCC, a synergistic effect was also observed between nicotine and alcohol users. " Interestingly, the rise in tobacco use among cases with variant genotypes of CYPs or a mixture of CYPs & GSTM1 was associated with a higher mRNA expression of CYPs in comparison to non-u2010tobacco users in trials with wild type genotypes of CYPs & GSTM1. According to the study, "internal and environmental risk factors" may increase the incidence of CYPs, which may raise the risk to HNSCC. ".

Source link: https://onlinelibrary.wiley.com/doi/10.1002/em.22495


Context dependent role of abiotic and biotic factors structuring nematode communities along two environmental gradients

"While abiotic environmental factors have long been thought to be the most significant deterministic process in microbial community assembly, recent studies show that biotic interactions may be equally important. " To determine the interaction between abiotic and biotic factors that could play a role in nematode community assembly, we used 18S rRNA gene marker metabarcoding and statistical analyses, including generalized dissimilarity modeling. The Lakes provided the most diverse and prairies communities with completely distinct compositions to each other, including the least diverse and prairies. We also detected a potential role of alkalinity in shaping these communities, but only in lakes. The lake communities were the most affected by biotic factors, followed by shoreline, and prairies displaying 58 percent, 27%, and 8% of variation respectively, respectively. Nevertheless, our findings show that both deterministic processes are important in nematode community assembly, but that their specific contributions are context dependent. ".

Source link: https://onlinelibrary.wiley.com/doi/10.1111/mec.16541


The effects of human development, environmental factors, and a major highway on mammalian community composition in the Wasatch Mountains of northern Utah, USA

"We compared the results of the distance to the highway, housing and human population density, normalized difference vegetation index, and human footprint index to changes in mammalian community composition and species-specific habitat use, using Bayesian hierarchical modeling. " Both environmental and human development influence mammalian community composition in our research region, although the effect of the highway was more nuanced, possibly due to the presence of a newly constructed wildlife overpass. We conclude that the presence of a mammalian community in our study area is influenced by both environmental conditions and human growth, although the effect of the highway was less nuanced, perhaps due to the presence of a newly constructed wildlife overpass. The lack of variation in species richness or community composition across the highway indicates that it does not currently exacerbate the effects of other anthropogenic causes of habitat fragmentation, which recommends further study into human-u2013wildlife conflict mitigation strategies. ".

Source link: https://onlinelibrary.wiley.com/doi/10.1111/csp2.12708

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions