商丘黄河故道游览区不同生境蚂蚁多样性研究

采用陷阱诱捕法,在商丘黄河故道地带性植被区5种生境中共采集蚂蚁590头,隶属3亚科6属7种,优势种为黑头酸臭蚁[Tapinoma melanocephalum(Fabricius)]、红林蚁(Formica sinae Emery)、掘穴蚁(Formica cunicxularia Latreille)、黄立毛蚁[Paratre chinaflavipes(Smith)]。     

福建省涵江区野生药用植物资源分布研究

[目的]调查福建省莆田市涵江区药用植物资源分布情况,掌握该地区药用植物种类、数量及质量情况,为该区药用植物资源开发与利用提供数据支持.[方法]采用全国第四次中药资源普查技术方法,通过野外实地调查、标本采集与鉴定、普查数据整理以及查阅文献,对涵江区药用植物资源种类和分布进行研究.[结果]涵江区共有植物151科466属700种,具有药用价值的野生植物136科375属525种,其中蕨类植物35种,裸子植物13种,单子叶植物54种,双子叶植物423种;重点药用植物49种,特色药用植物28种;珍稀药用植物22种,其中国家重点保护植物12种.[结论]涵江区药用植物资源种类丰富,多样性程度较高,但多为野生物种,栽培种植情况较少,利用度较低.应加强野生药用植物资源的开发利用,并对珍贵物种进行保护,使野生植物资源得到可持续利用.     

大学生公寓安全管理存在的问题及对策探析

针对当前大学生公寓安全譬理工作中存在的问题,分析了这些问题产生的原因,并从健全公寓安全管理制度、提高公寓安全管理队伍专业化水平、创新公寓安全管理教育方法和加强公寓安全要素建设4个方面提出解决大学生公寓安全管理中存在问题的相应对策。     

推进土地规模经营发展现代高效农业

巩义市农业的基本现状和现代农业的发展趋势 巩义市地处豫西浅山丘陵区,全市总面积1041平方公里,山地、丘陵和河谷平原分别占总面积的43．4％、45．3％和11．3％。地势为“两山夹一川”,耕地面积3．38万hm^2,占全市总面积的32％。全市辖20个镇（街道）,292个行政村,总人口78．2万人,其中农村人口66．49万人。     

塑料薄膜覆盖晾晒亚麻技术初步研究与应用

本文研究分析了塑料薄膜覆盖晾晒亚麻技术的效应原理;较详细地介绍了主要技术措施;阐述了该技术在当地的应用情况.本项技术对亚麻生产具有一定的积极意义.     

Effectiveness and pathologic changes of transplantation of human mesenchymal stem cells in SOD1-G93A mouse model of familial amyotrophic lateral sclerosis

AIM: To study intravenous transplantation of human mesenchymal stem cells (hMSCs) on the life span and pathological change of SOD1-G93A amyotrophic lateral sclerosis (ALS) mice. METHODS: hMSCs were cultured and expanded from heparinized bone marrow cells from healthy donors and the purity and features were identified with FCM. hMSCs (3×106) resuspended in 0.3 mL DMEM or 0.3 mL DMEM only were injected into the tail vein of genotyped SOD1-G93A ALS mice. The mice were evaluated for signs of motor deficit with 4-point scoring system according to Weydt and the onset and life span were assessed. The pathological change was observed with Nissl staining and number of motor neuron was counted. RESULTS: The onset symptoms in untreated SOD1-G93A ALS mice appeared at (156.6±3.6) d of age and the average life span was (188.3±3.5) d. hMSCs transplantation delayed the onset of ALS type symptoms about 14 d and prolonged the life span about 18 d compared to the untreated SOD1-G93A littermates. The loss of motor neurons in untreated mice was much faster and severer than that in hMSCs transplanted mice. At 16 th week and 20 th week, motor neurons of untreated mice were significantly fewer than those of transplanted mice. β-globin gene in brain was detected in transplanted ALS mice. CONCLUSION: hMSCs migrate to central nervous system after intravenous transplantation, prolong the life span and delay the onset and motor neuron loss in SOD1-G93A ALS mice.     

气候变化下三裂叶豚草在新疆的潜在地理分布

明确有害入侵种在区域尺度上的潜在分布及其对气候变化的响应对入侵种的预警和具体防控意义重大。三裂叶豚草是全球公认的恶性入侵杂草,目前已经大面积入侵“一带一路”中亚枢纽—新疆伊犁河谷。为有效防控三裂叶豚草在新疆的扩散蔓延,本研究基于最大熵模型,预测了当前及未来两种气候情景（RCP4.5, RCP8.5）下2050s和2070s时期三裂叶豚草在新疆的潜在分布及变化趋势。结果表明：当前气候下三裂叶豚草在新疆的总适生面积达24.01万km²,约占全疆面积的14%,在RCP4.5情景下,至2050s、2070s时期将分别增至37.36万和39.23万km²;在RCP8.5情景下,将分别增至39.45万和42.94万km²。在未来两种气候情景下,随着时间的推移,潜在适生区总体均呈现向北增加转移的趋势,减少区域主要集中在准噶尔盆地。所有环境因子中,与降水相关的因子总贡献率为40.1%,与温度相关的因子总贡献率56.0%,其中最干月降水（36.2%）、温度季节性变化标准差（29.1%）是对三裂叶豚草分布贡献率较高的环境因子。耕地和建设用地是三裂叶豚草入侵风险最高的区域。建议管理的重点除了放在已预测到的适生区内,还应特别关注农田、草场、道路两侧这些人畜扰动大、水分充足的区域。     

松毛虫宽缘金小蜂生物学特性观察初报

本文对松毛虫宽缘金小蜂的形态特征、生活习惯及利用途径进行了详细的介绍，对防治松毛虫有一定的指导意义。     

Influence of predator stress on levels of IL-1β, IL-6 in BALB/C mice with brain asymmetry

AIM: To investigate the influence of predator stress on hypothalamic-pituitary-adrenal (HPA) axis and IL-1β, IL-6 in mice with brain asymmetry. METHODS: By using paw preference test, right-pawed, left-pawed, and ambidextrous-pawed mice model were established. Mice with brain lateralization were exposed to their predator (cat). After acute and chronic predator stress by cats, EIA and ELISA were applied to detect plasma levels of corticosterone (CS), IL-1β and IL-6. RESULTS: (1) The level of plasma CS: in both acute and chronic predator stress group, right-pawed and ambidextrous mice had a higher level than that in their corresponding normal group (P<0.05). Meanwhile, the two groups also showed higher level than left-pawed in acute stress. Compared with the corresponding group under acute stress, left-pawed had much higher level of CS under chronic stress (P<0.05). (2) The level of plasma IL-1β: in normal group, left and right-pawed mice were higher than that in ambidextrous mice (P<0.01), of which left-pawed was the highest. In chronic stress group, the left-pawed exhibited higher level than that in right-pawed mice (P<0.05). (3) The level of IL-6: after chronic predator stress, ambidextrous mice had much higher level than that in other two groups (P<0.05). CONCLUSION: Under predator stress, the HPA axis and plasma proinflammatory cytokines (IL-1β, IL-6) in BALB/C mice were modulated by the brain asymmetrically, and brain lateralization may influence the function of immuno-endocrine network in psychological circumstances.     

两个园林树种防寒技术的研究

以日本厚朴和山樱引种实生苗为试材,综合引种过程中日本厚朴和山樱的越冬表现,分析不同越冬防护措施与植株冻伤率、生长状况之间的关系,探讨沈阳地区引种日本厚朴和山樱栽培的最佳方式和越冬防寒措施,制定适宜的栽培管理措施,解决日本厚朴在北方地区自然条件下安全越冬问题.