Results 101 to 110 of about 29,756 (163)

[Comparative study on the treatment of molar-incisor hypomineralization]. [PDF]

open access: yesHua Xi Kou Qiang Yi Xue Za Zhi
Shan X   +6 more
europepmc   +1 more source

特定培养条件下土壤有机质分解转化规律的研究

open access: yesShuitu Baochi Xuebao, 2004
通过室内培养实验,应用δ~(13)C方法研究了玉米秸秆分解期间,土壤固有及新形成有机质的分解转化规律。结果表明:玉米秸秆分解期间,土壤固有及新形成的有机质都逐渐分解,但前者的分解速度较慢。第360 d时,玉米秸秆和土壤固有有机质的残留率分别为30.0%和92.2%;720 d时分别为25.3%和78.8%。培养初期,富里酸的形成速度大于胡敏酸,而后富里酸转化为胡敏酸或相互转化;与新形成有机质相比,固有有机质中胡敏酸、富里酸的转化速度相对较慢。
doaj  

[Application of percutaneous endoscopic gastrostomy in children with methylmalonic acidemia or propionic acidemia complicated by feeding difficulties: a case series of 7 patients]. [PDF]

open access: yesZhongguo Dang Dai Er Ke Za Zhi
Li WY   +10 more
europepmc   +1 more source

[Gut microbiota-associated metabolites with drug-induced liver injury]. [PDF]

open access: yesZhonghua Gan Zang Bing Za Zhi
Gao WK   +5 more
europepmc   +1 more source

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