, 2007 为阐明黄土高原典型土壤全氮和微生物氮含量随土壤类型、土层和土地利用方式变化规律,研究了从北向南依次分布的干润砂质新成土(神木)、黄土正常新成土(延安)和土垫旱耕人为土(杨陵)等典型土壤的全氮和微生物氮含量的变化特征。结果表明,不同土壤类型、不同土层全氮和微生物氮含量存在显著差异。从南到北,全氮和微生物氮含量显著下降(P<0.05)。对同一土壤类型,全氮和微生物氮含量在0—60 cm随土层深度增加下降很明显,60—120 cm有轻微下降,120 cm以下低而稳定 ...
李世清 +3 more
core
[Intraperitoneal administration of Allium macrostemon-derived carbon quantum dots alleviates cisplatin-induced acute kidney injury and restores mitochondrial function in mice]. [PDF]
Nan Fang Yi Ke Da Xue Xue BaoYang J +7 more
europepmc +1 more source
, 2007 以黄土高原土壤类型和土壤肥力差异较大的25个农田石灰性耕层土壤为供试土样,研究了土壤微生物量碳(BC)、微生物量氮(BN)与土壤氮素矿化势(N0)、全氮(TN)、有机碳(OC)及土壤颗粒组成的关系.结果表明:BC、BN与TN、OC呈极显著正相关(P<0.01),表明BC、BN与土壤肥力关系密切,可作为评价土壤质量的生物学指标.BC、BN与N0均呈高度正相关,相关系数分别为0.665和0.741(P<0.01).BC、BN、TN、OC、N0与土壤物理性粘粒(<0.01 mm ...
李世清 +3 more
core
[Using activity-based protein profiling method to explore the antitumor targets of spiramycin derivatives]. [PDF]
Se PuYang RY, Feng TZ, Pei SJ, Qi H, Piao HL.
europepmc +1 more source
, 2008 一种用于芳烃与低碳烷烃烷基化反应的催化剂，含有Mo元素和 ZSM-5分子筛，其中Mo元素与ZSM-5分子筛的重量比为1～16％。催化剂中添加有重量比5-40％的粘结剂。上述催化剂在芳烃与低碳烷烃烷基化反应中的应用，反应温度为250～450℃；进料芳烃与低碳烷烃的摩尔比为 0.5-3，重量空速为0.2-5h-1。本发明的催化剂应用于苯和丙烷的烷基化反应时，可高选择性地生成甲苯、乙苯、异丙苯和正丙苯 ...
朱书魁 +3 more
core
[Interpretation of the "European consensus guidelines on the management of respiratory distress syndrome: 2025"]. [PDF]
Zhongguo Dang Dai Er Ke Za ZhiChen XQ, G Sweet D, Shi Y.
europepmc +1 more source
[Pediatric thunderstorm asthma in China: epidemiological characteristics and comprehensive management]. [PDF]
Zhongguo Dang Dai Er Ke Za ZhiHan P, Shen KL.
europepmc +1 more source
[Research progress in mechanisms of dietary resistant starch for regulating glucose and lipid metabolism]. [PDF]
Nan Fang Yi Ke Da Xue Xue BaoLiu K, Li X, Zhang Y, Sun J, Liao W.
europepmc +1 more source
[Interpretation of the "Expert consensus on the management of neonatal parenteral nutrition (2025)"]. [PDF]
Zhongguo Dang Dai Er Ke Za ZhiLin XZ +8 more
europepmc +1 more source
[Medical treatment standards for emergency burn wounded (2025 edition)]. [PDF]
Zhongguo Xiu Fu Chong Jian Wai Ke Za ZhiNational Health Commission Of The People's Republic Of China.
europepmc +1 more source