[Clinical characteristics and influencing factors of routine pulmonary ventilation function in children with allergic rhinitis induced by house dust mites]. [PDF]
Zhongguo Dang Dai Er Ke Za ZhiZhuang SJ +12 more
europepmc +1 more source
, 2005 以滇池围湖试验区海东湾和马村湾的沉积物为研究对象，对沉积物柱状样按每3cm分层，测试有机质、总磷及赋存形态磷(包括不稳定性磷、铁铝结合态磷、钙结合态磷、残渣磷)、总氮、亚硝酸盐氮、硝酸盐氮和氨氮等指标．结果表明：近些年来，2湾遭受的氮、磷内源负荷比以前大；铁铝结合态磷在磷的各形态中含量最高，氨氮所占总氮的比例较其它湖泊偏低；也发现海东湾和马村湾这2个湖湾在9～12cm层总磷、总氮呈现污染减轻的趋势，同时在24～39cm的深度上，总磷、总氮指标再次出现转折，考虑可行性和经济制约，24 ...
金向东 +5 more
core
[Effect of intraoperative dexmedetomidine on postoperative sleep disturbance in elderly surgical patients: a prospective multicenter cohort study]. [PDF]
Nan Fang Yi Ke Da Xue Xue BaoMeng B +11 more
europepmc +1 more source
[Pathogenic mechanisms and advances in the diagnosis and treatment of co-occurring psychiatric and psychological symptoms in patients with liver cirrhosis]. [PDF]
Zhonghua Gan Zang Bing Za ZhiGong H +6 more
europepmc +1 more source
[Case-based teaching with both positive and negative examples in undergraduate analytical chemistry laboratory： determination of six nitrogen-containing pesticides in environmental samples by solid-phase microextraction-high performance liquid chromatography]. [PDF]
Se PuZhang J +4 more
europepmc +1 more source
, 2009 采用框栽试验研究了施氮对大豆根瘤生长和结瘤固氮的影响,结果表明,施氮对大豆根瘤形成、生长和固氮能力有显著影响,随着N用量的增加,根瘤干质量、根瘤数量呈现先逐渐增加而后降低的趋势,而固氮酶活性和豆血红蛋白含量则表现为持续下降的趋势,适量施氮对根瘤生长有显著的促进作用,当氮素供应不足时则会抑制根瘤的生长,但当氮素供应过量时也会抑制根瘤的形成。从根瘤干质量和根瘤数量来看,各处理间表现为N100>N200>N50>N25>N0,以N100处理下根瘤干质量最大,根瘤数量最多,显著高于不施氮(N0)和其他施氮处理 ...
韩晓增 +4 more
core
[Research progress on the pathogenesis and clinical treatment of cirrhotic cardiomyopathy]. [PDF]
Zhonghua Gan Zang Bing Za ZhiWang KY, Liu L.
europepmc +1 more source
[Dietary secoisolariciresinol diglucoside alleviates chronic kidney disease in offspring rats caused by maternal trans-fatty acid exposure by regulating the Bcl-2/Bax/caspase-3 signaling axis]. [PDF]
Nan Fang Yi Ke Da Xue Xue BaoMa S, Chen M, Wu T, Zhao W.
europepmc +1 more source
, 2010 在全球变暖的背景下,生态环境相对脆弱的江河源区的生态系统过程和生态安全是人们关注的重点,氮素作为生态系统功能和过程的重要限制性因子,其平衡和收支研究对于深入理解和分析全球变化背景下的生态系统过程具有十分重要的意义。作者利用降水,径流,输沙等数据,建立了长江上游源头地区简单的氮素收支过程,计算了长江上游源头区域的大气氮沉降总量,径流氮输出总量,泥沙氮输出总量,长江源头地区的氮收支总量,并得出以下结论:(1)长江源头地区氮素湿沉降主要集中在夏季,沉降量占到全年总湿沉降量的近70%,春季和秋季的沉降量基本相同;
肖桐, 齐永青, 王军邦
core
[Analysis of influencing factors on secondary olfactory dysfunction in different types of chronic sinusitis]. [PDF]
Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za ZhiHan L, Wang J, Qiao X.
europepmc +1 more source