Showing 1,621 - 1,640 results of 9,630 for search '"Evolution"', query time: 0.06s Refine Results
  1. 1621

    Analysis of Evolution of the Wetland Ecosystem of the Liaohe River Nature Reserve over the Past 40 Years and Its Driving Factors by SUN Xiangru, CHEN Jiabo, WANG Yanjie

    Published 2021-01-01
    “…The wetland in the Liaohe River Nature Reserve has played a crucial role in pollutant purification and biodiversity protection for the Liaohe River Basin.This paper reviews the evolution of the wetland ecosystem of the Liaohe River Nature Reserve over the past 40 years and analyzes the major factors driving the process,and puts forward measures for wetland conservation and prospects for future research.The results show that:From 1980 to 2010,the total wetland area showed a decrease trend.Except for the protected area at the estuary of the Liaohe River,the Liaohe River Nature Reserve suffered scarce plant resources and extremely low diversity of plant species,making it unsuitable to serve as a breeding habitat for most birds and fishes.From 2010 to 2020,with the rapid recovery in wetland area,the macro plant structure and diversity improved significantly,resulting in a substantial increase in bird and fish populations.Major natural factors driving the changes of wetland include temperature and precipitation,while human factors such as agricultural development,water project construction,oil and gas exploration,urbanization,and exotic species invasion play a central role in the process.Currently,key measures such as strictly guaranteeing ecological water demand,re-planting aquatic vegetation in land-water cross bedding and open water areas,and conducting integrated control of exotic species invasion through physico-chemical and ecological prevention measures should be taken to promote wetland conservation.The future research should focus on wetland developmental mechanism of the Liaohe River Nature Reserve based on the basin scale.…”
    Get full text
    Article
  2. 1622
  3. 1623
  4. 1624
  5. 1625
  6. 1626
  7. 1627
  8. 1628
  9. 1629
  10. 1630
  11. 1631
  12. 1632
  13. 1633
  14. 1634

    Experimental Study on Stress Evolution and Microseismic Signals under Vibration Conditions of Coal during Excavation and Subsequent Waiting Time by Qifei Wang, Chengwu Li, Pingyang Lyu, Yuechao Zhao, Dihao Ai, Beijing Xie

    Published 2019-01-01
    “…The microseismic signal and the stress evolution law can provide a reasonable explanation for the forward movement of the concentrated stress and coal failure during roadway excavation.…”
    Get full text
    Article
  15. 1635

    Characterisation of the antibody-mediated selective pressure driving intra-host evolution of SARS-CoV-2 in prolonged infection. by Michael Schoefbaenker, Theresa Günther, Eva Ulla Lorentzen, Marie-Luise Romberg, Marc Tim Hennies, Rieke Neddermeyer, Marlin Maybrit Müller, Alexander Mellmann, Chiara Robin Bojarzyn, Georg Lenz, Matthias Stelljes, Eike Roman Hrincius, Richard Vollenberg, Stephan Ludwig, Phil-Robin Tepasse, Joachim Ewald Kühn

    Published 2024-10-01
    “…We studied the humoral immune response causing intra-host evolution in a B-cell depleted, haemato-oncologic patient experiencing clinically severe, prolonged SARS-CoV-2 infection with a virus of lineage B.1.177.81. …”
    Get full text
    Article
  16. 1636

    De l’Esthétisation à l’anti-symbolisme : les évolutions du corps chez William Carlos Williams by Samantha Lemeunier

    Published 2023-06-01
    “…Nevertheless, at the end of the 1930s, the body is re-naturalized as Williams witnesses the physical degradation of his dying mother; he thus represents the vulnerability of the body in his poems, the textual body freezing in time the fleeting evolutions of the physical body. Therefore, the passage from aestheticized to anti-symbolic bodies in Williams’ work is based on both the stylistic and biographical evolutions of the author, making his writing the mirror of the living and evolving bodies of his period.…”
    Get full text
    Article
  17. 1637
  18. 1638
  19. 1639
  20. 1640