Results 101 to 110 of about 30,242 (142)

[Pathways and Mechanisms of Periodontitis Contributing to Adverse Pregnancy Outcomes]. [PDF]

open access: yesSichuan Da Xue Xue Bao Yi Xue Ban, 2023
Guan ZW, Xu TQ, Shen S, Li X, Feng Q.
europepmc   +1 more source

黄土丘陵区切沟侵蚀发育过程中土壤侵蚀阻力变化

open access: yesShuitu Baochi Xuebao
目的切沟形态特征是量化切沟侵蚀发育的重要参数,其演变过程受制于水流剪切力与土壤侵蚀阻力之间的动态平衡。然而,切沟侵蚀发育过程中土壤侵蚀阻力在切沟不同部位如何随发育阶段演变并反馈于形态演化,还缺乏系统的量化研究。方法以黄土丘陵区典型坡面切沟为研究对象,结合野外调查与室内分析,系统比较不同发育阶段(前、中、后期)、沟道形态(宽型、窄型)及发育部位(沟头、沟壁、沟底)的土壤侵蚀阻力特征。结果随切沟发育,土壤临界剪切力(τc)显著上升[发育前、中、后期分别为(2.19±1.39)、(3.11±1.92)、(3 ...
王琼   +5 more
doaj  

Correction of presbyopia. [PDF]

open access: yesZhong Nan Da Xue Xue Bao Yi Xue Ban, 2022
Song S   +5 more
europepmc   +1 more source

[Ethical risks and regulatory considerations in neurofeedback technology]. [PDF]

open access: yesSheng Wu Yi Xue Gong Cheng Xue Za Zhi
Xue Y   +7 more
europepmc   +1 more source

[Angioimmunoblastic T-cell lymphoma with fever, arthritis and skin pigmentation: A case report]. [PDF]

open access: yesBeijing Da Xue Xue Bao Yi Xue Ban, 2020
Cheng G   +4 more
europepmc   +1 more source

[Etiology analysis and diagnosis of noninflammatory conductive hearing loss in children]. [PDF]

open access: yesLin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi, 2023
Xu X, Li R, Zhou X, Li W.
europepmc   +1 more source

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