菏泽市天香公园植物景观调查分析

通过查阅资料和实地调查了解天香公园的植物景观现状,结合园林植物配置和植物造景基本理论,对公园中的植物种类选择、植物配置形式、植物空间类型、植物与其他造园要素的配合等进行系统分析,总结出天香公园的植物景观特点,指出存在的问题,并提出针对性建议,为菏泽市城市园林建设提供参考。     

区域气象观测资料Flash填图

利用Flash体积小、效率高、跨平台和动作脚本编程特性,结合Asp强大的库数据处理能力,开发区域气象资料填图WEB显示系统。在Flash系统下,将底图转换为矢量图,制作文本填图元件和风矢元件,根据loadVariables函数获取的Asp数据,设置元件属性,旋转风矢,极大程度地提高执行速度。通过cookie传递数据检索时间,实现时间前后翻页检索,WEB页面中的观测资料填图可以放大漫游。     

曹州牡丹园植物配置探析

通过对曹州牡丹园内牡丹应用现状的调查,阐述了植物配置原则、牡丹的基本种植方式、牡丹品种间的配置方式及与其它植物的配置方式,并探讨了曹州牡丹配置中存在的问题及相应的改进措施。     

Effect of mesenchymal stem cells on secreting function of T lymphocytes from patients with idiopathic thrombocytopenic purpura in vitro

AIM: To analyze the effect of mesenchymal stem cells (MSCs) on secreting cytokines by T lymphocytes from patients with idiopathic thrombocytopenic purpura (ITP) in vitro.METHODS: Human bone marrow-derived MSCs were isolated by Ficoll Hypaque and cultured for proliferating to passage cells. Allogeneic T lymphocytes of ITP were isolated from peripheral blood by Ficoll Hypaque and nylon cotton column. Then the stromal feeder layers of different numbers (2×103, 1×104, 5×104 per well) of MSCs treated with mitomycin were co-cultured with above-mentioned T lymphocytes. The supernatant were respectively collected on day 2, 4 and 6 after co-culture, then the levels of IL-2, IFN-γ, IL-4, IL-10 secreted by T lymphocytes were measured by enzyme linked immunosorbent assay (ELISA) dynamically.RESULTS: The levels of IL-2 and IFN-γ secreted by T cells from ITP were higher than those from normal control (P<0.05, respectively). Inversely, IL-4 and IL-10 were lower than those in normal control (P<0.05, respectively). After co-cultured with T lymphocytes, MSCs significantly inhibited the cytokine levels of IL-2 and IFN-γ secreted by T lymphocytes from ITP or health adults (P<0.05, respectively) in a dose dependent manner (P<0.05, respectively), and the effect was more obvious when co-cultured for 4 days or 6 days than that for 2 days (P<0.05, respectively). However, MSCs significantly promoted the releases of IL-4 and IL-10 by T lymphocytes from ITP patients (P<0.05, respectively) in a dose dependent manner (P<0.05, respectively), and the effect on IL-10 was in a time dependent way (P<0.05), while the effect on IL-4 had no obvious difference among 2 d, 4 d and 6 d(P>0.05). As for health control group, when cell numbers exceeded above 1×104, MSCs obviously promoted IL-4 and IL-10 levels secreted by T lymphocytes (P<0.05) in a dose dependent manner (P<0.05), and both of the effects were more noticeable when co-cultured for 4 d or 6 d than that for 2 d(P<0.05, respectively).CONCLUSION: MSCs regulate the balance between Th1 and Th2 reaction and partly correct ITP Th1 polarization in vitro.     

浅议高校贫困生参与图书馆管理工作

针对高校合并后图书馆图书资源急剧增加和人力资源相对匮乏等情况，适时引进高校贫困生参与图书馆的各项工作。既缓解了图书馆人员资源紧张问题，又解决了高校贫困生的生活和学习难题，加强了图书馆与读者之间的有机联系，使高校图书馆真正成为了读者的第二课堂。     

中国作物栽培科学的历史沿革与发展方向

简要回顾了中国作物栽培科学的发展历史和建国后创立发展、停滞不前、恢复加速、巩固提高等4个发展阶段的基本情况,总结了50多年来新中国作物栽培学3大主要社会贡献和3个主要自身建设成就,分析了目前存在的10个现实问题,该科学按照“高产、优质、高效、安全、生态”的目标,向区域化、专业化、规模化、标准化、简约化、产业化的方向发展。中国农业、农村和农民的许多问题,仍需要作物栽培科学解决,其他科学无法取代,因而作物栽培工作者任重道远,作物栽培科学大有可为。     

微生态制剂对小尾寒羊羔羊育肥性能的影响

[目的]为微生态制剂在肉羊生产中的应用提供理论依据.[方法]以小尾寒羊为试验对象,研究微生态制剂对小尾寒羊羔羊育肥性能的影响.[结果]试验期内试验组和对照组小尾寒羊羔羊的平均增重分别为18.86和16.09 kg,试验组增重比对照组高17.22％,差异显著（P＜0.05）.试验组和对照组平均日增重分别为209.56和178.78 g.试验组体尺和屠宰性能均比对照组有不同程度提高.[结论]在日粮中添加微生态制剂可以提高小尾寒羊对饲料的利用效率,改善小尾寒羊的育肥性能,具有较大的推广价值.     

紫锥菊提取物对肉仔鸡免疫功能的影响

将400羽健康肉仔鸡随机分成4组,分别按0、0.1、0.5、1 mL剂量口服紫锥菊提取物药液7 d。25日龄时再次口服7 d,按肉鸡正常程序免疫进行试验。结果表明,紫锥菊提取物能够显著促进肉雏鸡免疫器官发育,提高外周血中新城疫抗体,是一种效果极为明显的免疫增强剂,并且能显著促进肉鸡的生产性能,以0.5 g·只-1为日最佳饲喂剂量。     

脱叶处理对牡丹秋季露地二次开花的影响

该文以4个重要的秋发牡丹品种为试材,研究了脱叶处理对牡丹秋季露地二次萌芽、开花的影响.结果表明:全株脱叶是实现牡丹二次开花的关键措施,在山东菏泽地区以8月下旬至9月上旬为适宜的脱叶时间,脱落酸（ABA）、乙烯利等化学脱叶药剂处理使秋发1、2、3号品种的二次开花时间提前2～6 d,显著提高了植株二次开花质量,尤其是明显促进了二次叶片的发育.试验证明,在完善的花芽分化基础上,综合掌握植株脱叶关键措施,可使秋发牡丹于秋季特别是在国庆节前后开放,并且达到花叶并茂的效果.      

盐胁迫对不同品种辣椒种子萌发特性的影响

研究了NaCl胁迫对10个辣椒品种种子发芽的影响.结果表明,低盐浓度对辣椒种子萌发有促进作用,随着NaCl胁迫浓度的增大,对种子萌发的抑制作用明显增强,在供试的10个辣椒品种中,不同品种辣椒种子萌发受盐胁迫抑制的程度不同,“美国超大牛角王”、“特大牛角椒”和“大牛角椒”为耐盐品种,“保椒耐寒二号”不耐盐,其他品种耐盐性中等.