由于没有明显的地理阻隔,闽浙丘陵地带花臭蛙复合体(Odorrana schmackeri species complex)的物种组成、分布界限、分布格局存在争议。2016年9月至10月对闽浙交界地带福建省宁德市屏南县和南平市浦城县进行野外考察、样本收集,通过扩增...由于没有明显的地理阻隔,闽浙丘陵地带花臭蛙复合体(Odorrana schmackeri species complex)的物种组成、分布界限、分布格局存在争议。2016年9月至10月对闽浙交界地带福建省宁德市屏南县和南平市浦城县进行野外考察、样本收集,通过扩增样本线粒体12S rRNA和16S rRNA基因并与黄岗臭蛙(O.huanggangensis)、天目臭蛙(O.tianmuii)和花臭蛙(O.schmackeri)的序列进行比对,构建系统发生关系、计算遗传距离,结合形态学鉴定和形态量度分析,对福建省花臭蛙复合体组成进行了研究。结果显示,福建省花臭蛙复合体包括黄岗臭蛙和天目臭蛙,其中黄岗臭蛙分布于武夷山山区、闽江和九龙江流域,天目臭蛙仅分布于衢江(钱塘江主要支流)的次源地——浦城县管厝乡东北部,为福建省臭蛙类分布新记录种。本研究增添了福建省两栖动物多样性并细化了黄岗臭蛙和天目臭蛙在该省分布范围的认识,但是浦城县西北端长江流域的花臭蛙复合体的物种组成仍需进一步确认。水系和流域是否影响花臭蛙复合体物种分化和分布格局以及这些近缘物种的物种形成机制有待进一步研究。展开更多
The single-machine lot scheduling problem with splittable jobs to minimize the number of tardy jobs has been showed to be weakly NP-hard in the literature.In this paper,we show that a generalized version of this probl...The single-machine lot scheduling problem with splittable jobs to minimize the number of tardy jobs has been showed to be weakly NP-hard in the literature.In this paper,we show that a generalized version of this problem in which jobs have deadlines is strongly NP-hard,and also present the results of some related scheduling problems.展开更多
Objective Ginger(Zingiber officinale)is widely used as a spice in cooking and as a medicinal herb in traditional herbal medicine.The present study was to investigate the analgesic and anti-inflammatory activities of g...Objective Ginger(Zingiber officinale)is widely used as a spice in cooking and as a medicinal herb in traditional herbal medicine.The present study was to investigate the analgesic and anti-inflammatory activities of ginger oil in experimental animal models.Methods The analgesic effect of the oils was evaluated by the'acetic acid'and'hot-plate'test models of pain in mice.The anti-inflammatory effect of the oil was investigated in rats,using rat paw edema induced by carrageenan,adjuvant arthritis,and vascular permeability induced by bradykinin,arachidonic acid,and histamine.Indomethacin(1 mg/kg),Aspirin(0.5 g/kg)and Dexamethasone(2.5 mg/kg)were used respectively as reference drugs for comparison.Results The ginger oil(0.25-1.0 g/kg)produced significant analgesic effect against chemically-and thermally-induced nociceptive pain stimuli in mice(P<0.05,0.01).And the ginger oil(0.25-1.0 g/kg)also significantly inhibited carrageenan-induced paw edema,adjuvant arthritis,and inflammatory mediators-induced vascular permeability in rats(P<0.05,0.001).Conclusion These findings confirm that the ginger oil can be used to treat pain and chronic inflammation such as rheumatic arthritis.展开更多
基金Supported by National Natural Science Foundation of China(Grant Nos.12071442,11971443,12271491)。
文摘The single-machine lot scheduling problem with splittable jobs to minimize the number of tardy jobs has been showed to be weakly NP-hard in the literature.In this paper,we show that a generalized version of this problem in which jobs have deadlines is strongly NP-hard,and also present the results of some related scheduling problems.
基金E&T Modern Center for Natural Products of Liaoning Province of China(2006-19-10)
文摘Objective Ginger(Zingiber officinale)is widely used as a spice in cooking and as a medicinal herb in traditional herbal medicine.The present study was to investigate the analgesic and anti-inflammatory activities of ginger oil in experimental animal models.Methods The analgesic effect of the oils was evaluated by the'acetic acid'and'hot-plate'test models of pain in mice.The anti-inflammatory effect of the oil was investigated in rats,using rat paw edema induced by carrageenan,adjuvant arthritis,and vascular permeability induced by bradykinin,arachidonic acid,and histamine.Indomethacin(1 mg/kg),Aspirin(0.5 g/kg)and Dexamethasone(2.5 mg/kg)were used respectively as reference drugs for comparison.Results The ginger oil(0.25-1.0 g/kg)produced significant analgesic effect against chemically-and thermally-induced nociceptive pain stimuli in mice(P<0.05,0.01).And the ginger oil(0.25-1.0 g/kg)also significantly inhibited carrageenan-induced paw edema,adjuvant arthritis,and inflammatory mediators-induced vascular permeability in rats(P<0.05,0.001).Conclusion These findings confirm that the ginger oil can be used to treat pain and chronic inflammation such as rheumatic arthritis.
