, 2007 近年来发现在逆境下(干旱、低温、高温、盐渍等)的植物体内大量积累ABA,从而引导人们去研究ABA与植物抗逆性之间的关系。在塔里木河下游地区影响植被正常生长发育的各种胁迫因子中,地下水位和土壤盐分是导致"绿色走廊"衰败的主要因素。柽柳是塔里木河下游荒漠植被的主体,对于改善生态环境、遏制沙漠化、保护生物多样性等诸多方面具有重要作用。因此,研究柽柳和地下水位以及土壤盐分的关系,对于维护塔里木河流域天然植被赖以生存的环境,保护柽柳这一重要的生物资源,维持生态平衡的良性循环具有重要意义。运用国际通用软件SAS6 ...
陈亚宁, 吕新, 庄丽, 李卫红
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[Ferroptosis and drug-induced liver injury]. [PDF]
Zhonghua Gan Zang Bing Za Zhi, 2023 Li XB.
europepmc +1 more source
, 2007 以城市污染水体为对象，研究了水体中氨氮（NH3-N）、亚硝酸盐氮（NO3^--N）、硝酸盐氮（NO3^-N）的转化及去除规律。结果表明，温度对水体中三氮（氨氮、亚硝酸盐氮、硝酸盐氮）的去除具有重要的影响，在夏季实验中三氮的转化及去除速率明显高于冬季；而在温度相似的情况下，光照则成为影响三氮转化去除速率的决定因素，还发现，在黑暗条件下，水体中亚硝酸盐氮、硝酸盐氮出现明显的累积现象，而在光照情况下则没有。由此推断，在光照条件下藻类生物的同化作用在三氮转化和去除中起了主要作用 ...
俞盈, 盛彦清, 付广义, 陈繁忠
core
[Research progress and optimization strategies for early screening of type 1 diabetes]. [PDF]
Zhongguo Dang Dai Er Ke Za ZhiSong QJ, Sun Y.
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, 2009 本文以长期定位试验为依托,研究了黄土高原旱塬区黑垆土大田对比试验和长期定位施肥对土壤肥力及硝态氮累积和淋溶的影响。结果表明:长期施用有机肥能够明显增加土壤养分,氮磷和有机肥配施效果显著;和1984年土壤养分状况相比,大田对比试验土壤有机质增加了27.1%,全氮和全磷提高了84.2%和34.8%,有效氮、有效磷和速效钾增加了46.9%、540.0%和10.2%,养分水平与长期定位试验中氮磷配施相近。长期定位试验中氮磷配施或与有机肥配施能够有效地减少土壤剖面中硝酸盐的累积和淋溶,氮肥单施硝态氮累积量最大 ...
谢永生, 赵云英, 郝明德
core
Phosphorylated PKM2 regulates endothelium-dependent vasodilation in diabetes. [PDF]
Zhong Nan Da Xue Xue Bao Yi Xue Ban, 2023 Lu B +5 more
europepmc +1 more source
[Advances in injectable and transdermal glucose-responsive insulin delivery systems]. [PDF]
Zhejiang Da Xue Xue Bao Yi Xue BanLi K, Zhang X, Gu Z, Wang J.
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[Liquid chromatography-high resolution mass spectrometry analysis of 300 illegally added drugs and their analogues in functional milk powder for the elderly]. [PDF]
Se Pu, 2023 Ning X +5 more
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[Exposure to Lead, Arsenic, Mercury, and Cadmium in Populations in Sichuan and Chongqing : A Comparative Study of Reference Intervals Derived From Direct and Indirect Sampling Methods]. [PDF]
Sichuan Da Xue Xue Bao Yi Xue BanNie M +8 more
europepmc +1 more source
[Optimized extraction of active components of <i>Paeonia lactiflora</i> and their antioxidant, anti-inflammatory and pigmentation-reducing effects for skin whitening]. [PDF]
Nan Fang Yi Ke Da Xue Xue BaoXu Q +6 more
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