Wei Song

Sep 23, 2024 | mdpi.com | Wei Song |Zijiang Yang

1. IntroductionRelation extraction (RE) aims to identify semantic relationships between entity pairs from sentences of large corpora, which is a crucial task in the fields of natural language processing (NLP). Since it has become a foundation for widespread downstream applications such as question answering [1], knowledge graph [2], and information retrieval [3], relation extraction has garnered significant attention over the past decade.

Jul 30, 2024 | nature.com | Xue-Yan Liu |Avery Driscoll |Wei Song |Rong Mao |Cong-Qiang Liu |Benjamin Z. Houlton | +5 more

Soil extractable nitrate, ammonium, and organic nitrogen (N) are essential N sources supporting primary productivity and regulating species composition of terrestrial plants. However, it remains unclear how plants utilize these N sources and how surface-earth environments regulate plant N utilization. Here, we establish a framework to analyze observational data of natural N isotopes in plants and soils globally, we quantify fractional contributions of soil nitrate (fNO3-), ammonium (fNH4+), and organic N (fEON) to plant-used N in soils. We find that mean annual temperature (MAT), not mean annual precipitation or atmospheric N deposition, regulates global variations of fNO3-, fNH4+, and fEON. The fNO3- increases with MAT, reaching 46% at 28.5 °C. The fNH4+ also increases with MAT, achieving a maximum of 46% at 14.4 °C, showing a decline as temperatures further increase. Meanwhile, the fEON gradually decreases with MAT, stabilizing at about 20% when the MAT exceeds 15 °C. These results clarify global plant N-use patterns and reveal temperature rather than human N loading as a key regulator, which should be considered in evaluating influences of global changes on terrestrial ecosystems. Isotopic constraints reveal that soil nitrogen contribution to global plants is temperature-controlled, not by precipitation or nitrogen deposition. As temperatures rise, inorganic nitrogen becomes more important and preferred over organic nitrogen.

Apr 25, 2024 | dialnet.unirioja.es | Ming Zhao |Jin Zhou |Wei Song |Zhi Li

Ming Zhao[1];Jin yan Zhou[1];You jiu Tan[1];Wei wei Song[1];Zhi dong Li[1];Hong Tan[1][1]Chinese Academy of Sciences Chengdu Institute of BiologyLocalización: Electronic Journal of Biotechnology, ISSN-e 0717-3458, Vol. 12, Nº. 1, 2009, págs.

Feb 29, 2024 | journals.plos.org | Boshuang Yao |Sichuan province |Jieru Peng |Wei Song

Loading metrics Open Access Peer-reviewedResearch Article Citation: Yao B, Peng J, Song W, Yang L, Zhang M, Wu X, et al. (2024) Real-world effectiveness of cytology and HPV-based screening strategy in cervical cancer screening: A cross-sectional population-based study in Chengdu, China. PLoS ONE 19(2): e0299651.

May 24, 2023 | frontiersin.org | Wei Song |Chao Chen |Chen Zeng

1. Introduction Disturbance of terrestrial ecosystems can significantly affect and alter ecosystem function and structure and thus have a major impact on the spatial and temporal patterns of the terrestrial carbon cycle (Lin et al., 2022). As a major part of terrestrial ecosystems, forest ecosystems play an important role in the global carbon cycle, energy balance, and material exchange (Paul et al., 2002; Bonan, 2008; Pan et al., 2011).