镜泊湖区木本植物区系的研究

据野外调查,镜泊湖区有野生木本植物29科59属145种.该区木本植物区系地理成分比较复杂,温带成分优势明显.温带分布科占总科数的65.00%,温带分布属占总属数的91.07%,尤以北温带分布最多;温带分布种占总种数的90.34%,其中中国-日本分布、东北分布、东北-华北分布三者占总种数的68.97%,是该区温带地理成分的核心.     

慈溪市水生维管束植物的区系特点及保护利用

2007～2009年对慈溪市水生维管束植物区系特点进行了调查研究.结果表明:慈溪有水生维管束植物131种,隶属于88属41科.将88个属归纳为11个分布区类型,世界分布类型比例最高,其次依次为热带分布属、温带分布属.此外,对保护与合理利用慈溪市水生维管束植物资源提出了必要性及具体措施.     

镜泊湖火山熔岩台地种子植物多样性分析

通过野外调查对镜泊湖熔岩台地的种子植物多样性进行了研究,结果表明,该地区有种子植物77科265属486种,主要由多数较小的科组成;植被类型有地衣苔藓群落、草本植物群落、灌丛、疏林草地和森林植物群落;按Raunkiaer生活型分类,地面芽植物居首位,占总种数的33.13%;在水分生态类型中,中生植物共368种,占总种数的75.72%,是该区主要的水分生态类型.该研究为镜泊湖保护区植被保护提供了一定数据.     

岩下自然保护区蕨类植物区系特征

依据植物的现代地理分布,岩下自然保护区蕨类植物种的分布可以划归11个分布区类型和7个亚型,其中东亚成分和热带亚洲成分构成了该区区系的主体.区系分析表明,该地区蕨类植物处于东亚植物区系中,但热带亚洲成分对该区也有一定影响,表现为亚热带向温带过渡的特点.其区系地理成分复杂,从属来看,以热带、亚热带分布的属占优势,有33个,占总属数的78.6%,说明有较高的热带亲缘.从种来看,以东亚地理成分占优势(42种),加上中国特有成分(5种)占总种数的42.3%.表明岩下蕨类植物区系属东亚区系.     

昌黎县野生种子植物区系分析

经野外调查和对已有资料进行统计分析,昌黎县野生种子植物计64科160属206种.世界分布和泛热带分布科占优势,共计48科,占昌黎县总科数的85.2%;温带性质明显,所占成分比重大,占昌黎县总属数的54.4%;同时,该区具有一定的亚热带-热带区系的过渡性;特有程度低,特有科无,中国特有属仅1属,本地区特有属无.     

庙岛群岛野生观赏植物资源与利用

根据调查统计,庙岛群岛有野生观赏植物62科155属198种,按观赏特性可分为观叶、观花、观果、观花与观果、地被及垂直绿化6类.并对其开发利用现状进行了探讨,对该地区野生观赏植物的区系进行了研究.结果表明,区系为典型的温带性质;种的生活型中,高位芽植物(32.3%)和地面芽植物(30.3%)占优势,1年生植物(19.2%)和隐芽植物(16.2%)较低,地上芽植物最少(2.0%).     

内蒙古白粉菌寄主范围及生态学观察

内蒙古已知白粉菌寄主植物405种(含变种),隶属于58科、202属,分别占内蒙古被子植物科、属、种数的50.88%、28.21%和17.20%.寄生白粉菌种数最多的5个寄主科分别是:豆科(17种)、蔷薇科(14种)、唇形科(8种)、忍冬科(7种)和菊科(6种),共有52种,占内蒙古白粉菌总数的42.28%.寄主种数最多的10个科分别是:菊科(73种)、豆科(50种)、蔷薇科(37种)、毛茛科(26种)、唇形科(23种)、杨柳科(20种)、十字花科(12种)、蓼科(11种)、伞形科(10种)和玄参科(10种),共含272种,占内蒙古白粉菌寄主总数的67.16%.在白粉菌寄主中,6种是珍稀濒危保护植物,95种是栽培的经济作物或园林观赏植物.白粉菌在不同植被类型中的分布明显不同,物种丰富度从高向低依次为:山地植被＞草原植被＞沙地植被＞湿地植被＞荒漠植被;垂直分布现象不明显.     

湖北黄石国家矿山公园种子植物区系研究

在野外调查和资料整理的基础上,对黄石国家矿山公园自然植物区系组成和分布区类型进行了研究.该地区共有种子植物129种, 隶属于51科、96属:科的分布类型以世界分布和泛热带分布为主;属的分布以泛热带和北温带分布属为主,温带成分和热带成分比例相当,反映出该区是亚热带和温带植物区系的交汇地区.该区植物种类较为贫乏,草本植物类型占明显优势, 充分体现出该区植被的次生性特点.     

太行山猕猴自然保护区苔藓植物区系研究

根据调查和参考有关文献,对太行山猕猴自然保护区苔藓植物区系进行了初步分析,结果发现,该区共有苔藓植物34科55 属107种(包括亚种、变种、变型),其中苔类植物8科8属8种,藓类植物26科47属99种;地理成分复杂多样,种地理成分统计分析表明,温带成分占绝对优势,东亚成分次之,中国特有种第3,热带成分也占有一定比例;该区苔藓植物区系隶属于华北地区但兼有多种成分,体现该区苔藓植物区系的南北过渡特征.     

伏牛山植被及土壤养分分布特征研究

[目的]研究伏牛山地区植被群落特征和不同植被带土壤养分分异规律.[方法]采用群落生态学的调查方法, 分析了伏牛山南北两坡植物种类分布特征、植物种的地理分布特征以及海拔梯度上的植被垂直带谱.采用常规养分分析法, 测定了不同植被带的土壤养分含量.[结果]伏牛山现有微管植物175科、892属、2 879种,其中,中国特有种1 400种、热带分布种388种、温带分布种601种;由于伏牛山南北两坡植被分布的不同,导致相应植被带的土壤养分存在明显分异.[结论]该研究对了解伏牛山地区植被与土壤的生态过程具有指导意义.     

The effect of amount of possession of the trait of hostility on accuracy of perception of hostility in others.

Some theories of personality hold that an individual's perception of others is influenced by his own personality characteristics; more specifically, that a trait of low social value will be projected more into others, and that insight into the possession of these characteristics reduces this distortion. These 2 hypotheses were tested by having a group of college students rate each other (including themselves) on degree of friendliness or hostility. Agreement with group rating about self yielded the insight score. In general, the hypotheses were supported; the "friendly" Ss were most accurate in their perception of others, and insight was positively associated with accurate perception. From Psyc Abstracts 36:04:4HL16M. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Comparison of rates of infection of two methods of emergency ventricular drainage

The rates of infection of two methods of external ventricular drainage in use at Atkinson Morley's Hospital--namely, (a) percutaneous drainage with Rickham reservoirs and (b) tunnelled ventriculostomies--were compared in this retrospective review. Percutaneous drainage of CSF with Rickham reservoirs was associated with a 27% rate of infection as identified by positive microbiological cultures; tunnelled ventriculostomy catheters had a 10% infection rate. The difference in the infection rate between the two methods was statistically significant (P < 0.015). Other variables examined, including the age and sex of the patients and the reasons for ventricular drainage, were not associated with an increased rate of infection. Most infections from either method were caused by a coagulase negative staphylococcus. The average duration of ventricular drainage before identification of positive cultures was 5.7 days for Rickham reservoirs and 6.0 days for ventriculostomies.     

浅析《野草》的版画特征

鲁迅先生一生热爱美术作品,对版画中木刻兴趣尤甚.<野草>作为其"写心之作",亦呈现出一些与木刻版画一致的审美特征:一是具有木刻版画的色彩特征,多对比、多冷色,有阴郁的美感;二是具有木刻版画的力度特征,环境描写、人物刻画处处刀锋毕现,遒劲有力,有一种"力之美".     

四辊破碎机车刀架的改造

针对四辊破碎机车刀架车削中存在的几个问题,详细介绍了电动车刀架的结构和工作原理,建立主要设计参数的数学表达式,并进行适当的分析。改造后,这种电动车刀架运行平稳、可靠、方便、省力,取得了预期的效果。     

转炉炉壳热应力分析

根据实际转炉建立实体模型。以有限元为手段,考虑了炉衬和炉壳材料的物性参数随温度变化的特点和炉衬与炉壳之间膨胀间隙,计算了转炉炉壳在温度载荷和炉衬膨胀压力同时作用下的热应力。所得结果可为转炉炉壳设计提供依据。     

Comparison of the results of surgical and conservative treatment of fractures of the diaphysis of the tibia

In this paper is treated the fundamental problematic of the fracture of the diaphysis of the tibia and the therapeutic results after the conservative and operative treatment are confronted. Among 518 patients with 433 open fractures and 35 with closed fractures of the diaphysis of the tibia, successful treatment of more 2/3 was obtained in the period from 1968 to 1972. Following our casuistics and literature, whose results are similar, we find out that the average total treatment of the osteosynthesis of the fracture of the diaphysis was shortened for 2,5 months depending upon the type and the localisation of the fracture. Apolied methods of the operative and conservative and conservative treatment in relation to the velocity of the medical cure as well as to the extreme anatomical-functional results are analised. We noticed that osteosynthesis, made by the intermedullary nail and the extension of the canals or by a small AO table, by the achieved stability makes conditions of immediate motions and an early rehabilitation. Because of that it gives the best functional results.     

焦炭热性能指标意义浅析

通过对焦炭在高炉内的历程及其变化规律的剖析,阐述焦炭热性能指标的意义,形象地把焦炭在高炉内的损耗分为三部分(M1,M2,M3)。指出M2对焦比及焦炭价格有一定的指导作用。     

Results of treatment of cancer of the cardia

Cancer of the cardia is traditionally discussed with cardiac cancer of the lower portion of the esophagus and upper gastric cancer invading the esophagus, and the specific characteristics of cancer of the cardia have never been clearly defined. We reviewed the outcome of 172 patients with adenocarcinoma of the cardia who had undergone radical surgery between 1949 and 1994 in the Division of Gastrointestinal Surgery of the Cancer Institute Hospital. The centers of the tumors were located within 2 cm above and below the boundary between the esophagus and the stomach, and their longitudinal diameter was less than 8 cm. We divided the patients into an early period (1949-1979; n = 79) and a late period (1980-1994; n = 93), and focused on the historical transition. There were no differences in patient gender or histology between the two periods. However, the late period was associated with fewer cases of esophageal invasion and shorter longitudinal diameter, as the age of the population advanced. The number of advanced cancers such as the localized and infiltrative type had decreased, and early cancer and early clinical stage had become more common, but despite the fact that the number of early cancers had increased, extended dissection, such as thoracic and paraaortic lymph node dissection, was performed more frequently. By clinical stage, the long-term outcome markedly improved in Stage I patient in the late period, and tended to improve in Stage II and III patients. This appears to have been attributable to the prevention of micrometastasis by extended dissection, although the number of early cancers is another major potential cause. There were no differences in the outcome of Stage IV patients between the two periods, and further advances in multimodality therapy must be awaited. The range of resection is basically proximal gastrectomy, and if there are adequate indications, the prognosis is favorable. In view of the status of lymphatic flow and lymph node metastasis, and long-term results, lateroaortic lymph node dissection is important. Since the number of early cancer patients has been increasing, if intraabdominal recurrence is prevented, intrathoracic lymph node dissection will contribute greatly to the outcome of such patients.     

参与式农业基地建设行动方案设计

为了编制实用性强的基地建设行动方案,首先,确定参与式发展的主体,搭建一个"决策框架";其次,针对行动目标,提出不同参与主体,如管理者、农民、消费者等团队与个人的目标及行动内容;最后,工作应向重塑伙伴式合作关系,挖掘农民自我发展潜力,完成三大角色的转换,打造农业基地文化等方向推进.