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Membrane-Potential Alteration During K+ Uptake of Different Salt-Tolerant Wheat Varieties

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Agricultural Sciences in China 2010年第7期9卷 974-979页

作者： WANG yu-qian WANG Xiao-li shan yu-hua SHENG Hai-jun FENG Ke Key Laboratory of Crop Genetics and Physiology of Jiangsu Province Yangzhou University Yangzhou 225009 P.R. China School of Life Sciences Guizhou Normal University Guiyang 550001 P.R.China

K＋ is the most abundant cation in plant cells and plays an important role in many ways.K＋ uptake of plant has respect to its salt resistant *** are two categories of channel transportation for plants to uptake K＋,one is through K＋ channels and the other is through nonselective cation channels（NSCCs）.The transmembrane localization of K＋ may change membrane potential（MP）.In this paper,three wheat varieties with different salt tolerance were selected and the MP was measured by microelectrode during K＋ *** results showed that the effects of K＋ uptake on MP through K＋ channels or NSCCs were distinct.K＋ influx through K＋ channels led to MP hyperpolarization,while K＋ influx through NSCCs resulted in *** MP alteration of wheat varieties with different salt tolerance was mainly due to NSCCs-mediated K＋ *** with the salt-tolerant wheat,the MP hyperpolarization during K＋ uptake of saltsensitive wheat was much more evident,probably because of the cation outflux through NSCCs during this process.

关键词： wheat K^+ uptake nonselective cation channels (NSCCs) membrane-potential

Mapping of QTLs for Nitrogen Use Efficiency and Related Traits in Rice(Oryza sativa L.)

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Agricultural Sciences in China 2005年第10期4卷 721-727页

作者： shan yu-hua WANG yu-long PAN Xue-biao College of Environmental Sciences Yangzhou University Yangzhou 225009 P.R.China Rice Research Center Yangzhou University Yangzhou 225009 P.R.China

Current rice production is usually guaranteed by applying large amount of chemical nitrogen fertilizers to paddy soils. The improvement of nitrogen use efficiency is of great importance not only in rice production itself but in environmental protection as well. In this study we performed a molecular marker-based genetic analysis of nitrogen use efficiency for biomass production （NUEp） and several other related traits in a recombinant inbred line （RIL） population, derived from a cross of the parents of shanyou 63, the most widely cultivated indica hybrid in China. A total of 12 QTLs were detected using interval mapping with a LOD threshold of 2.0, among which one QTL controlling NUEp was located at the marker interval of Waxy-C1496 on chromosome 6, and the rest 11 QTLs associated nitrogen concentration and accumulation in rice plant were positioned on chromosomes 1, 2, 4 and 6, respectively. Correlation between NUEp and other traits was analyzed and the implications of the results with respect to the improvement of the hybrid rice were discussed.

关键词： Rice Nitrogen use efficiency QTL mapping

Responses of Ryegrass(Lolium perenne L.) Grown in Mudflats to Sewage Sludge Amendment

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Journal of Integrative Agriculture 2014年第2期13卷 426-433页

作者： BAI Yan-chao GU Chuan-hui TAO Tian-yun ZHU Xiao-wen XU Yi-ran shan yu-hua FENG Ke College of Environmental Science and Engineering Yangzhou University Department of Geology Appalachian State University

Sewage sludge amendment （SSA） is an alternative waste disposal technique and a potential way to increase fertility of mudflats for crop growth. The present study aimed to assess the suitability of SSA by assessing the nitrogen （N） and phosphorous （P） uptakes, heavy metal accumulation, growth, biomass, and yield response of ryegrass （Lolium perenne L.） at 0, 30, 75, 150, and 300 t ha-1 SSA rates at various growth stages. The results showed that the highest biomass ofryegrass at seedling and vegetative stages were at 300 and 150 t ha-1 SSA rate, respectively. The increments of ryegrass yield at reproductive stage at 30, 75, 150, and 300 t ha1 SSA rates were 98.0, 122.6, 88.1, and 61.2%, compared to unamended soil. N and P concentrations in ryegrass increased with increasing SSA rates at all stages except N and P in roots dropped significantly at 300 t ha-1 rate at vegetative stage. The metal concentration for Mn, Cu, Zn, Ni, Cd, Cr, and Pb in shoot of ryegrass at 300 t ha-1 S SA rate increased by 0.63-, 2.34-, 15.02-, 0.97-, 10.00-, 0.01- and 1.13-fold, respectively, compared to unamended soil. However, heavy metal concentrations in shoot of ryegrass were lower than the standard for forage products in China. The study suggested that sewage sludge amendment in mudflat soils might be feasible. However, the impacts of sludge application on edible crop plants and soil environment need further investigations.

关键词： sewage sludge mudflat soil ryegrass growth metals

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慈善意识相对弱化及其伦理成因

郑州大学学报（哲学社会科学版） 2007年第6期40卷 33-37页

作者：单玉华河南财经学院马列部河南郑州450002

中华民族是善良的民族,有悠久的慈善历史,但与世界上慈善事业发达的国家比较,我国的现代慈善意识和行为有不可否认的差距。我国传统的和现有的伦理构架和伦理观念,与这一结果有深层次关系。首先,儒家仁爱伦理塑造了中华民族的善良本性,... 详细信息

中华民族是善良的民族,有悠久的慈善历史,但与世界上慈善事业发达的国家比较,我国的现代慈善意识和行为有不可否认的差距。我国传统的和现有的伦理构架和伦理观念,与这一结果有深层次关系。首先,儒家仁爱伦理塑造了中华民族的善良本性,也使中国人的善良具有自身特征,但是另一方面,儒家伦理的某些特征和内涵,使中国人的慈善意识固化在特定的框架内,并在一定程度上制约了中国人的现代慈善意识和慈善行为;其次,中国宗教伦理对慈善意识的影响相对弱化;再次,共产主义伦理道德和社会主义伦理道德塑造了中国人崭新的精神面貌,同时,特定环境下对社会主义伦理的某些"时代性"注释和偏解,也使人们对当代慈善意识产生某些意识错位。

关键词：慈善慈善意识慈善行为伦理

Acute and chronic excitotoxicity in ischemic stroke and late-onset Alzheimer's disease

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Neural Regeneration Research 2025年第7期20卷 1981-1988页

作者： shan Ping yu Emily Choi Michael QJiang Ling Wei Department of Anesthesiology Emory University School of MedicineAtlantaGAUSA Center for Visual and Neurocognitive Rehabilitation Atlanta Veterans Affairs Medical CenterDecaturGAUSA

Stroke and Alzheimer's disease are common neurological disorders and often occur in the same *** comorbidity of the two neurological disorders represents a grave health threat to older *** review presents a brief background of the development of novel concepts and their clinical *** activity of glutamatergic N-methyl-D-aspartate receptors and N-methyl-D-aspartate receptor-mediated Ca^(2+)influx is critical for neuronal *** ischemic insult induces prompt and excessive glutamate release and drastic increases of intracellular Ca^(2+)mainly via N-methyl-D-aspartate receptors,particularly of those at the extrasynaptic *** Ca^(2+)-evoked neuronal cell death in the ischemic core is dominated by necrosis within a few hours and days known as acute ***,mild but sustained Ca^(2+)increases under neurodegenerative conditions such as in the distant penumbra of the ischemic brain and early stages of Alzheimer's disease are not immediately toxic,but gradually set off deteriorating Ca^(2+)-dependent signals and neuronal cell loss mostly because of activation of programmed cell death *** on the Ca^(2+)hypothesis of Alzheimer's disease and recent advances,this Ca^(2+)-activated“silent”degenerative excitotoxicity evolves from years to decades and is recognized as a unique slow and chronic *** N-methyl-D-aspartate receptor subunit GluN3A,primarily at the extrasynaptic site,serves as a gatekeeper for the N-methyl-D-aspartate receptor activity and is neuroprotective against both acute and chronic *** stroke and Alzheimer's disease,therefore,share an N-methyl-D-aspartate receptor-and Ca^(2+)-mediated mechanism,although with much different time *** is thus proposed that early interventions to control Ca^(2+)homeostasis at the preclinical stage are pivotal for individuals who are susceptible to sporadic late-onset Alzheimer's disease and Alzheimer's disease-related

关键词： Ca^(2+)hypothesis cognitive deficits hyperactivity late-onset Alzheimer's disease neurodegeneration N-methyl-D-aspartate receptors N-methyl-D-aspartate receptor subunits pathogenesis preventive treatment

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金融活动中的伦理二难选择及价值依据

玉溪师范学院学报 2005年第2期21卷 1-7页

作者：单玉华河南财经学院德育部河南郑州450002

金融活动中的经济价值和伦理价值各有自己的所指和衡量标准,在各自的领域中都以价值最大化为目的,它们的冲突使人陷入难以抉择的矛盾旋涡。金融活动中的伦理二难选择,其产生和解决过程,实际上是经济准则和伦理准则在金融活动中的博弈过... 详细信息

金融活动中的经济价值和伦理价值各有自己的所指和衡量标准,在各自的领域中都以价值最大化为目的,它们的冲突使人陷入难以抉择的矛盾旋涡。金融活动中的伦理二难选择,其产生和解决过程,实际上是经济准则和伦理准则在金融活动中的博弈过程。金融活动中“价值”依据的差异性和发展变化性并不否定价值标准的相对确定性,按照这一相对确定的标准,在二难选择中,应鼓励人们实践选择的超功利性。此外,二难选择中把伦理理念转化为道德实践,也是一个痛苦的过程,并伴随实际代价,只有把道德责任内化为精神追求,才能见诸行动。

关键词：金融活动伦理二难选择博弈价值

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于“静”中勾连茶道精神与人生修养

唐都学刊 2018年第5期34卷 37-42页

作者：单玉华河南财经政法大学马克思主义学院郑州450046 河南省育英素质教育研究院郑州450046

"静"是茶道精神的构成要素。茶道的"静"既指茶本身有"静"的属性和仪态,亦指茶道仪式外在的"静"和茶道精神内在的"静"。"静"也是中国传统的人生修养功夫。道家学说在阐释"道""自然""无为"等核心概念的同时,充分关注了"静"在其哲学思想中... 详细信息

"静"是茶道精神的构成要素。茶道的"静"既指茶本身有"静"的属性和仪态,亦指茶道仪式外在的"静"和茶道精神内在的"静"。"静"也是中国传统的人生修养功夫。道家学说在阐释"道""自然""无为"等核心概念的同时,充分关注了"静"在其哲学思想中的重要地位。儒家学说同样关注了"静"的哲学内涵与人生修养价值,在"修身在正其心"的修养伦理中居重要地位。"静"还是一种生活理念和生活态度,通过践行茶道之"静"与传统哲学之"静",建构"静"的人生意境,是人生意境的美好境界。

关键词：静茶道茶道精神人生修养人生意境

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金融风暴后的金融伦理反思

唐都学刊 2015年第3期31卷 1-7页

作者：单玉华河南财经政法大学思想政治教育学院郑州450046

2007年开始的金融风暴,其直接诱因是次贷泛滥和消费过度等经济因素,但是金融道德风险亦多层面、多角度地推动着这次金融风暴,成为金融风暴的内在诱因之一。与此同时,金融风暴使金融道德风险呈现出广泛性、公开性、全球性的新特征;金融... 详细信息

2007年开始的金融风暴,其直接诱因是次贷泛滥和消费过度等经济因素,但是金融道德风险亦多层面、多角度地推动着这次金融风暴,成为金融风暴的内在诱因之一。与此同时,金融风暴使金融道德风险呈现出广泛性、公开性、全球性的新特征;金融伦理关系亦发生了若干变化:金融伦理关系的覆盖面更广、涉及度更深,强势金融群体与弱势金融群体呈现出新的利益对立,金融伦理关系面临的投机性冲击加大,民间高利贷使金融伦理关系恶化。反思金融风暴所带来的创伤,强化人们在金融活动中的信用准则、公平准则和责任道义感,提升金融活动中人们的伦理理性,是金融活动健康发展的必要环节。

关键词：金融风暴金融伦理金融道德风险金融伦理关系金融伦理规则

液-液相转移反应萃取法高选择性合成二烯丙基胺

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高校化学工程学报 2018年第4期32卷 862-868页

作者：王超单玉华封东廷刘入强黄超江苏绿色催化材料与技术重点实验室江苏省先进催化与绿色制造协同创新中心常州大学石油化工学院江苏常州213164

为提高氯丙烯催化氨解合成二烯丙基胺(DAA)的选择性,研究提出了液-液相转移反应萃取新工艺。通过萃取剂和相转移促进剂的筛选,建立了一高效的液-液相转移反应萃取体系。通过物料配比、反应时间和温度等因素的考察,确定了适宜的反应条件... 详细信息

为提高氯丙烯催化氨解合成二烯丙基胺(DAA)的选择性,研究提出了液-液相转移反应萃取新工艺。通过萃取剂和相转移促进剂的筛选,建立了一高效的液-液相转移反应萃取体系。通过物料配比、反应时间和温度等因素的考察,确定了适宜的反应条件。分别用气相色谱(GC)、气相色谱-质谱联用(GC-MS)、核磁氢谱(1H-NMR)和红外光谱(FT-IR)等方法对产物DAA进行定性与定量分析。结果表明:氯苯是合适的反应萃取剂,苄基三乙基氯化铵(BTEC)是合适的相转移促进剂,氯化亚铜是合适的氨解催化剂;在较合适的原料配比(质量比m(氨水(25%)):m(氯丙烯):m(氯化亚铜):m(氯苯):m(BTEC)=255:58.5:1.5:120:1.0)下,35℃反应3 h,氯丙烯转化率达95.9%,DAA的选择性达91.9%(收率为88.1%)。含催化剂、过量的氨及中间产物单烯丙基胺(MAA)等的水相可方便地循环利用,而且在循环过程中将副产物氯化铵以固体形式分出,从而避免废液排放,降低生产成本。

关键词：液-液相转移反应萃取二烯丙基胺氯丙烯氨水氨解