mlsa-iai-msu-lab/ru_sci_bench_zho_cite_reranking huggingface dataset:
林业科技期刊论文摘要的统计分析

《中国学术期刊（光盘版）检索与评价数据规范》将摘要作为A，B，C等3类论文的必备顶。为考察林业科技期刊中论文摘要的情况和不同类别论文中各类摘要的分布情况，统计分析了2000年出版的9种技术类林业科技期刊的摘要篇数和字数。结果表明，有4种期刊的摘要具有率在80％以上，但也有的期刊只有40％－50％，甚至更低，A类论文中，各类摘要的篇数排序为报道性摘要＞报道－指示性摘要＞指示性摘要；B类论文为报道－指示性摘要＞指示性摘要＞报道性摘要；C类论文为指示性摘要＞报道－指示性摘要＞报道性摘要。报道性摘要、报道－指示性摘要和指示性摘要的平均字数分别为190.2宁、117.5字和77.7字；多重比较表明各类摘要的字数存在极显著差异，摘要字数与摘要类别有关，还与一次文献的信息量和研究对象的复杂程度等有关，就某篇论文而言，报道性摘要具有唯一性，表3参9。
渍水对小麦扬麦5号旗叶和根系衰老的影响

生育中后期渍水是长江中下游麦区小麦高产稳产的主要限制因子。该区由于普遍实行稻麦多熟种植制度，前茬水稻使土壤浸水时间过长，土壤粘重，排水困难，透气性差而造成湿害；另外，该区常年麦季降雨量500 ～ 800mm(浙江省可达1000mm)多集中于小麦生长的中后期，大大超过了小麦正常需水量(350 ～ 450mm)，从而加剧渍害。
藏南拉轨岗日变质核杂岩带的TM影像特征

通过对拉轨岗日地区EF图像进行主成分变换、缨帽变换、比值运算等数字处理。其成果图像进一步印证了拉轨岗日变质核杂岩带具有典型三层结构这一野外区调成果。通过对系列成果图像的分析对比。总结了变质核、接触带和盖层的影像特征。分析了拉轨岗日构造带各变质核杂岩之间的变化规律。
球孢白僵菌选择性培养基的筛选和检测应用

报道了寄生球果花蝇Strobilomyia spp.的球孢白僵菌Beauveria bassiana选择性培养基的筛选以及应用该培养基检测土壤中球孢白僵菌动态的研究结果，为有效地检测施用球孢白僵菌防治球果花蝇的土壤中球孢白僵菌的变化，以Doberski的选择性培养基为基础，筛选出对球孢白僵菌具有较强选择性的选择性培养基，可回收土壤中球孢白僵菌孢子达79.5%。用该培养基检测球孢白僵菌在施菌土壤中第2年的存活率为0.9%-2.8%，它在土壤中有一定的持效性，表4参6。
沟金针虫生物学特性及绿僵菌毒力测定

通过野外调查和室内饲养观察，掌握了危害雷竹的沟金针虫的形态特征和生物学特性。沟金针虫一般2～3 a完成1个世代，以幼虫或成虫在土中越,到内用绿僵菌Mf_2菌株对沟金针虫进行毒力测定，结果表明：绿僵菌1.0×10~8个·mL~(-1)和1.0×10~7个·mL~(-2)2种浓度的孢子液对沟金针虫无有明显致病力。图1表2参8。
Endothelin-1 promoted proliferation of vascular smooth muscle cell through pathway of extracellular signal-regulated kinase and cyclin D1

AIM: To investigate whether endothelin-1 (ET-1) can promote human umbilical artery smooth muscle cell (HUASMC) proliferation through pathway of extracellular signal-regulated kinase (ERK) and cyclin D1. METHODS: The effects of ET-1 and PD98059 on HUASMC were evaluated by MTT assay. The content of DNA was defined by [3H]TdR assay and cell cycle was analyzed by flow cytomerty. Western blot analysis was employed to detect the active phosphorylated state of ERK and the expression of cylin D1. RESULTS: Firstly, ET-1 (100 nmol/L) stimulated HUASMC proliferation compared with the group without ET-1 (P<0.05) and PD98059 group (P<0.05). PD98059 inhibited the HUASMC proliferation stimulated by ET-1 (P<0.05). Secondly, ET-1 stimulated DNA synthesis of HUASMC compared with the group without ET-1 (P<0.05). Thirdly, ET-1 promoted the cell cycle transition from G0/G1 phase to S phase. G0/G1 phase cell percentage was obviously decreased compared with the group without ET-1 (P<0.05). S phase cell percentage was increased compared with the group without ET-1 (P<0.05). Fourthly, ET-1 increased the phosphorylated level of ERK and the expression of cylin D1, an inhibitor of ERK blocked phosphorylated level of ERK and cyclin D1 expression. ERK phosphorylated level of ET-1 group was evidently increased compared with PD98059 group (P<0.05), Cyclin D1 protein expression also was increased compared with PD98059 group (P<0.05). While nonphosphorylated ERK expression remained unchanged. CONCLUSION: Endothelin-1 promoted vascular smooth muscle cell proliferation through pathway of ERK and cyclin D1.
杉木光皮桦纯林及混交林生物量

从林分生长、生物量、空间分布格局及土壤养分等方面，对营造于福建南平的5年生杉木与光皮桦混交林及其纯林进行了研究。结果表明:杉木与光皮桦混交林及光皮桦纯林具有较高的林分生产力，光皮桦纯林和杉木光皮桦混交林生物量分别比杉木纯林大86.44%和30.87%。杉木与光皮桦混交林不仅有利于维护地力，促进杉木生长，而且还形成较好的林分结构，杉木光皮桦事状混交模式是值得推广的杉阔造林模型。图2表3参6。
浙江天台山常绿阔叶林次生演替序列群落物种多样性

应用物种丰富度和物种多样性指数及群落均匀度等指标对浙江省天台山常绿阔叶林次生演替序列物种多样性进行研究。结果表明：天台山次生森林从针叶林到针阔混交林到常绿阔叶林的演替过程中，物种多样性呈先变大后变小的趋势。在群落的垂直结构中，次生演替序列3种群落类型的物种丰富度和物种多样性指数的大小顺序均为灌木层（包括幼苗及幼树）＞乔木层＞草本层。在3种群落类型中，木本植物的物种多样性均大于草本植物。表4参9。
Interlayer Coupling of Co/NM/FM(NiFe and Co) Nano-Sandwich Films

Cu/Co, Cu/NiFe, Ta/NiFe bilayers and Co/Cu/Co, Co/Cu/NiFe, Co/Ta/NiFe sandwich films were deposited by a magnetron sputtering method. Magnetic properties were evaluated by VSM and spin valve magnetoresistance was investigated by a four-probe method to study the interlayer coupling of the two magnetic layers. It has been found that the interlayer coupling depended not only on the layer thickness of the nonmagnetic spacer but also on the nature of the spacer. The inter-layer coupling was reduced as the spacer layer thickness increased. The result was consistent with those from observations of the magnetic domain for the trilayers by means of Lorentz Electron Micro-scope. The trilayers with Cu spacer layer have shown a stronger coupling than those with Ta spacer layer。
Non-isothermal Mold Filling and Curing Simulation for Resin Transfer Molding

A numerical model of 2. 5D non-isothermal resin transfer molding simulation is developed for thin part based on the control volume/finite element method. The non-uniform temperature distribution and the heat generation during the filling stage are modeled with the lumped temperature system and the species balance. Numerical algorithm of the simulation are studied. The molding sim-ulation for a part is performed to show the effectiveness of simulating filling time, temperature distribution and curing degree.
Direct Torque Control System and Sensorless Technique of Permanent Magnet Synchronous Motor

The direct torque control theory has achieved great success in the control of induction motors. However, in the DTC drive system of Permanent Magnet Synchronous Machine (PMSM) proposed a few years ago, there are many basic theoretical problems that must be clarified. This pa-per describes an investigation about the effect of the zero voltage space vectors in the DTC system of PMSM and points out that if using the zero voltage space vectors rationally, not only can the DTC system be driven successfully but also the torque ripple is reduced and the performance of the system is improved. This paper also studies the sensorless technique in the DTC system of PMSM and con-figures the DTC system of PMSM with sensorless technique including zero voltage space vectors. Numerical simulations and experimental tests have proved the theory correct. In the condition of sensor-less, the DTC system of PMSM is wide-rangely speed adjusting, and the ratio of speed adjustment is 1 : 100.
Phenotypic Plasticity in Response to the Heterogeneous Water Supply in the Rhizomatous Grass Species, Calamagrostis epigejos in the Mu Us Sandy Land of China

Calamagrostis epigejos (L) Roth, is a perennial grass with slender and long rhizome segments between interconnected neighbor ramets. To investigate the phenotypic plasticity in response to the heterogeneous soil water supply, ramet pairs of the species were subjected to heterogeneous water supply by which either mother ramets or daughter ramets were in high or low soil water supply, respectively, in the Maowusu (Mu Us) Sandy Land of Nei Mongol. The results showed that the phenotypic characteris-tics of the individual ramets of C. epigejos were greatly influenced by the heterogeneous water supply. The ramets treated with high water supply significantly produced more new rhizomes and more offspring (ramets), and accumulated more shoot biomass, and allocated more biomass to their shoots than those treated with low water supply. In comparison with the daughter ramets in homogeneous soil water supply, phenotypic characteristics, in terms of new rhizome growth, the production of new offspring, and the biomass alloca-tion pattern, of the daughter ramets within the pairs of the species were not significantly changed, no matter that high or low soil water supply to mother ramets. The phenotypic responses of mother ramets to soil water supply were similar to those of daughter ramets. From these results, it is inferred that the interconnected ramets of C. epigejos response phenotypically to their local soil water rather than to the soil water experienced by the interconnected ramets. The interconnected ramets of C. epigejos might be independent of each other in water relationship, although they are physically interconnected with rhizome segments. The physiological independence of interconnected ramets might facilitate the risk spreading and thus enhance the genet survivorship under the frequent drought stresses in Mu Us Sandland.
Interspecific Transition Among Caragana microphylla, C. davazamcii and C. korshinskii Along Geographic Gradient. II. Characteristics of Photosynthesis and Water Metabolism

The characteristics of photosynthesis and water metabolism of Caragana microphylla Lam., C. davazamciiSancz. and C. korshinskii Kom. populations in different sites (117.6°-105.7° E, 44.6°-38.8c N) were studied. (1) From the east to the west, the responses of the three species to photosynthetically available radiation (PAR) in net photosynthesis rate increased, the relative humidity of the air which corresponded to the occurrence of maximum photosynthesis rate decreased, and the corresponding air temperature increased. Along the same gradient, the before-noon superiority of the photosynthesis be-came evident, and the photosynthesis rate and the light use efficiency (LUE) increased, while the transp-iration rate decreased, thus the water use efficiency {WUE) increased notably, and the leaf water content decreased gradually. From the east to the west, the plants took a water-saving strategy step by step with higher photosynthesis rate and lower transpiration rate. These physiological changes in the plants were adaptable to the conditions of light, temperature and humidity in the habitat of the plants, and might be the biological foundation for the geographical transition among C. microphylla, C. davazamcii and C. korshinskii. (2) The adaptation of photosynthetic system of C. microphylla, C. davazamcii and C. korshinskii to PAR, air humidity and temperature exhibited the interspecific continuity, which was consistent with the environmental gradient. In different species and different sites, the diurnal changes of net photosynthesis rate, the daily cumulative value of net photosynthesis, the diurnal changes of transpiration rate, the daily cumulative value of transpiration, the water use efficiency and the diurnal changes of leaf water content varied with longitudinal descent (from the east to the west). The characteristics of photosynthesis and water metabolism indicated that the geographical transition among C. microphylla , C. davazamcii and C. korshinskii was in gradual change, and these three species formed a geographical cline.
Effects of Vegetation Coverage and Management Practice on Soil Nitrogen Loss by Erosion in a Hilly Region of the Loess Plateau in China

Soil erosion and nutrient loss due to erosion are world-wide problems. Similar to soil loss by erosion, soil nitrogen (N) loss by erosion in small catchments is affected by vegetation coverage. The practice of comprehensive management for catchments mainly by adjusting cropland, grassland and wood-land areas was widely adopted to reduce soil and water loss in catchments of the Chinese Loess Plateau. Three experiments under natural and artificial rainfall conditions on N loss by erosion for a model catch-ment and for an actual catchment in Zhifanggou of Ansai County in China was performed to determine the relationships between comprehensive management and N loss by runoff in small catchments. The results for vegetation coverage of 60%, 40%, 20% and 0 show that runoff loss of ammonium, nitrate, and total N were 87.08, 44.31, 25.16, 13.71 kg/km2; 85.50, 74.06, 63.95, 56.23 kg/km2; and 0.18, 1.18, 1.98, 7.51 t/ km2, respectively. Due to reduction in the size of cropped area on steeply sloping land, soil N loss by erosion in the catchments was decreased by 15.8% as compared with that in 1992, i.e., from 8 758.5 kg in 1992 to 7 562.2 kg in 1998. Whereas, catchments act as a filter for ammonium and nitrate in rain, the catchment filtering effects on nitrate is remarkably higher than that on ammonium. The enrichment of < 20 u,m aggregate in sediment results in the enrichment of organic matter and total N in flood sediment. Greater vegetation coverage can effectively decrease soil erosion and total N loss. However, soil mineral N loss increased as vegetation coverage increased.
Theory and Practice of Marginal Ecosystem Management — Establishment of Optimized Eco-productive Paradigm of Grassland and Farming-Pastoral Zone of North China

Land use/land cover change (LUCC) mapping and analysis using multi-temporal normalize difference vegetation index (NDVI) data have been well documented. Recent empirical studies have docu-mented that many new methods with high accuracy of retrieved land surface temperature (Ts) have been developed. Thus, the combination of land surface temperature and NDVI has the greatest potential to improve the surface vegetation dynamic monitoring. In this study, the following objectives are pursued to: introduce the practical method to produce the 7s, NDVI and 7VNDVI based on remotely sensed data; investigate the different retrieved result of vegetation cover information from NDVI, 7s and 7s/NDVI data sets, and analyze the intra-annual time trajectories of different vegetation cover categories in the NDVI- 7s space for farming-pastoral zone in North China, and (3) quantitative analysis the difference inusing NDVI, Ts and 7s/NDVI data sets to express information based on the indices (information entropy and averaged information grads), and evaluate the relative role of 7s/NDVI data set in the discrimination of different vegetation cover categories through comparison to traditional NDVI data set.
MIMO Hybrid Control of Structural Responses for Helicopter

A MIMO hybrid model of structural response control, which combines adaptive feedforward control and feedback control, was developed and then applied in a helicopter model to eliminate the dual-frequency harmonious vibration at cabin seats. In implementation, an AOEF (Acceleration Output Extended Feedback) controller for the MIMO case was designed to add enough damping to the control path so that the convergence rate of the FXLMS algorithm could be obviously improved. The corresponding FXLMS algorithm for the control path of closed loop was developed also. The numerical results on the finite element model of a helicopter indicated that with hybrid control, responses at four rows of seats could be controlled with two actuators and the adaptive controllers got a quicker convergence rate.
心理社会因素对医学生自信水平的影响

目的寻找影响医学生自我评价的有关因素，为提高他们的自信程度提供参考。方法采用个人评价问卷（PEI）、应付方式问卷、症状自评量表（SCL-90）及一般情况调查表（自制）对450医学生进行调查。结果性别、身高、体重、班委、恋爱、母亲文化程度、父亲健康状况、家庭经济状况，解决问题、求助等因素与PEI量表总分呈显著正相关，SCL-90各因子呈显著分和总均分及自责、幻想、退缩、合理化与PEI量表总分负相关。结论医学生的自我评价受到自身心理状况、应付方式、家庭状况等因素的影响。
用于等电子谱线法诊断电子温度的Mg/Si混合膜制备工艺研究

进行了在单靶头磁控溅射装置上采用复合靶溅射制备Mg/Si混合膜的工艺研究，制备出了不同组分的Mg/Si混合膜，并利用X射线衍射（XRD）、原子力显微镜（AFM）、透射电镜（TEM）等测试手段，对混合膜的结构进行了初步分析。分析结果表明：Mg/Si混合膜中的镁以单取向多晶形式存在，硅以非晶形式弥散在镁的晶粒之间。
鲜食加工兼用杏新品种‘冀光’

‘冀光’是采用有性杂交（‘串枝红’ * ‘二红’）育成的中晚熟鲜食加工兼用杏新品种，具有成熟早、外观美、品质佳、加工性好、丰产性强等特点，适合华北杏树适生区栽培。
军校男、女大学生MBTI人格类型分析

目的探讨军校男、女大学生的MBTI人格类型特征，为军校大学生的心理评估与心理健康教育提供理论依据。方法应用修订后的中文版MBTI人格类型量表，对军校男、女大学生进行测试。结果男、女大学生在S、T、J因子上的得分没有显著差异；男、女大学生在S、T、J因子人格倾向所占百分比均远高于N、F、P因子；男、女军校大学生在16种人格类型的分布上基本相似，ESTJ、ISTJ、EMTJ、ISFJ四咱类型居多。结论军校男、女大学生MBTI人格倾向和人格类型的分布具有相同之处又各有特点，且均具有E、S、T、J人格倾向。
蒸发冷凝法制备纳米Al粉及其热反应特性研究

用蒸发冷凝法制备了金属纳米Al粉，采用悬浮蒸发技术得到了粒径分布较窄的纳米颗粒。利用热重－差示扫描量热（TG－DSC）联用仪，对纳米Al在不同载气环境（N2或Ar）下进行热力分析，在高纯氮环境中，实验温度范围（约1400℃）内的块状Al和纳米Al粉粉表现出不同的反应活性。此外，实验考察了不同升温速率对纳米Al粉与N2反应的影响。
梨新品种——雪青

‘雪青’系由‘雪花’ * ‘新世纪’梨种间杂交育成的优质早熟梨新品种，其果实大（300-400 g），圆球形，果皮绿色，肉质细脆，汁多，味甜，微香，品质佳，丰产，稳产，抗轮纹病和黑星病。
二袖套法大鼠原位肝移植的手术方法探讨

目的：探讨二袖套法大鼠原位肝移植术中的处理方法。方法：术中尾静脉建立输液能路，采用自制拉钩牵开腹壁，暴露手术野，单人手术放大镜下操作，二袖套法建立大鼠原位肝移植模型。结果：32只大鼠原位肝移植手术成功率为100%，平均无肝期为（22.48 ± 2.03)min，受体总手术时间为（45.00 ± 3.21)min，1周生存率84.38%。结论：术中建立输液通路，良好的手术野暴露有助于缩短受体无肝期及总手术时间和提高受体生存率。
柑桔果实柠檬苦素类化合物的研究与应用

柠檬苦素(limonin)及其类似物属三萜类的物质，是植物次生代谢的产物，主要存在于多种芸香科和楝科植物中，柠檬苦素类化合物在抗癌、镇痛、调节体内胆固醇水平，防止动脉粥样化和除虫等方面的作用，越来越受到人们的重视，但有关研究在国内刚刚起步。柠檬苦素类物质在柑桔中的总含量及种类因品种、发育阶段等不同有较大差别。本文就柑桔果实中柠檬苦素类化合物的种类、结构、作用、疗效及其提取和鉴定的方法等方面进行了概述。
一个厌氧甲烷氧化菌菌株的分离、纯化和特征研究

首次报道浙江象山市郊青紫泥水稻田土壤中一个能厌氧氧化甲烷的细菌菌株AMOB3的分离、纯化及其部分生理生化特性。该菌株革蓝氏染色阴性，细胞极小，仅(0.3～0.5) μm×(0.7～0.8) μm，在厌氧滚管琼脂上可形成细小透明直径约为0.2 mm的菌落。能较好地利用甲烷和甲醇，但仅微弱利用甲酸。电镜显微表明细胞具有周生于胞质的与好氧性甲烷氧化菌相同的囊膜结构。试管培养时该菌株的甲烷氧化活性为2.4 nmol/mL。Cu~(2+)、Mo~(6+)、Mn~(4+)等离子可提高该菌株氧化甲烷的能力，但Cr~(3+)具有抑制作用。经将菌株AMOB3的特性与现有报道的好氧性甲烷氧化菌比较，认为这是一个不同于现有甲烷氧化菌的新种。
覆膜旱作对水稻生长发育及某些生理特性的影响

在田间条件下研究了覆膜旱作和常规水作对水稻生长发育及生理特性的影响。结果表明，覆膜旱作稻比常规水稻分蘖快且多，最高分蘖数可提高168%，差异极显著，覆膜旱作稻根系具有较高氧化力、还原力及硝酸还原酶活性，与常规水作稻间差异均达显著水平。覆膜旱作稻产量可高达8164kg/hm~2，常规水作稻产量为7846kg/hm~2，增产幅度3.4%～11.9%，有效穗数的增加是其产量提高的重要原因。
The roles of detoxifying enzymes and AChE insensitivity in methamidophos resistance development and decline in nilaparvata lugens

Methamidophos resistance of brown planthopper ( Nilaparvata lugens Stal, BPH) was selected in laboratory. After successive selection for 9 generations, the selection was ceased by rearing BPH without contact with any insecticide for 9 generations. In the full course, the successive changes of esterase activity, MFO activity, GSTs activity and AChE insensitivity were analyzed. The results showed that the change of esterase activity was high correlated with that of methamidophos in the full course, which indicated that esterase played very important role both in the resistance development and in the resistance decline. However, the, change of AChE insensitivity only significantly correlated with that of resistance in the development stage, and the change of MFO activity or GSTs activity only significantly correlated with that of the resistance in the decline stage, which indicated the changes of AChE insensitivity, MFO activity or GSTs activity only played some roles in different stages of the resistance change.
Response of seedlings of different tree species to elevated CO2 in Changbai Mountain

Eco-physiological responses of seedlings of eight species, Pinus koraiensis, Picea koraiensis, Larix olgensis, Populus ussuriensis, Betula platyphylla, Tilia amurensis, Traxinus mandshuhca and Acer mono from broadleaved/Korean pine forest, to elevated CO_2 were studied by using open-top chambers under natural sunlight in Changbai Mountain, China in two growing seasons (1998-1999). Two concentrations of CO_2 were designed: elevated CO_2 (700 mol-mol~(-1)) and ambient CO_2 (400 mol · mol~(-1). The study results showed that the height growth of the tree seedlings grown at elevated CO_2 increased by about 10%-40% compared to those grown at ambient CO_2. And the water using efficiency of seedlings also followed the same tendency. However, the responses of seedlings in transpiration and chlorophyll content to elevated CO_2 varied with tree species. The broad-leaf tree species were more sensitive to the elevated CCMhan conifer tree species. All seedlings showed a photo-synthetic acclimation to long-term elevated CO_2.
颅内室管膜瘤13例MRI临床分析

目的 分析颅内室管膜瘤的MR表现。方法 回顾分析13例经手术病理证实的颅内室管膜瘤的MR表现。结果 脑室系统室管膜瘤10例，其中四脑室室管膜瘤3例、侧脑室室管膜瘤7例，其MRI T_1WI呈等或稍低信号，T_2WI呈不均匀高信号，瘤周无水肿，增强扫描呈不均质强化。脑实质室管膜瘤3例，幕上2例、幕下1例，肿瘤实质MRI T_1WI信号稍低于脑实质，T_2WI似灰质信号或稍高于灰质信号，肿瘤周围有轻度水肿，增强扫描肿瘤实质部分呈轻到中度强化。结论 MRI表现有助于室管膜瘤的鉴别诊断。
川芎嗪及复方丹参注射液辅助治疗妊娠高血压综合征60例临床分析

目的  比较川芎嗪注射液及复方丹参注射液在辅助治疗妊娠高血压综合征(PIH)中的作用，探讨两药在改善微循环及胎儿宫内缺氧方面的差异，进一步指导临床用药。方法  选取2001年6月～2002年6月在我院住院治疗的60例PIH患者，平均分为2组，在有效镇静、解痉、降压、低流量吸氧等治疗的基础上，分别给予静脉滴注川芎嗪注射液及复方丹参注射液治疗1个疗程。结果  川芎嗪组抑制纤溶、改善微循环的效果显著；复方丹参组主要降低血液粘稠度、降低胆固醇及血酯。结论  川芎嗪及复方丹参对PIH有肯定的治疗作用，由于两药的临床作用不同，需有针对性用药。
经皮经肝单侧入路行双侧胆管内引流术的临床应用

目的 评价经单侧入路左、右肝胆管内支架和／或内涵管引流术治疗肝门部肿瘤所致左、右肝胆管同时受累的恶性梗阻性黄疸（MOJ）的疗效及临床价值。 方法 12例左、右肝内胆管同时受累的MOJ病人，经皮经左肝或右肝单侧入路，通过在左-右肝管间和肝管-胆总管间置入金属内支架或内涵管行胆管内引流。 结果 12例MOJ病人左-右肝管间、肝管-胆总管间共置入内支架16枚，内涵管8个。2周后血清胆红素水平从治疗前（375±52.98）μmol/L下降到（117.08±39.09）μmol/L。3～6个月复查内引流均通畅，无严重并发症发生。 结论 经单侧入路双侧肝管内引流术是治疗左-右肝管同时受累型MOJ的一项创伤小、费用低，既安全有效又经济实用的介入治疗新技术。
早期肺灌洗治疗犬海水淹溺肺损伤的实验研究

目的  探讨早期肺灌洗治疗海水淹溺肺损伤的有效性。方法  12只普通级健康杂种犬建立全肺海水淹溺肺损伤模型后随机分成A、B两组：A组6只，伤后单纯给予输液；B组6只，伤后15 min在纤支镜引导下分别行左右肺0.45%NaCl大容量灌洗。观察自主呼吸24 h灌洗组犬双肺换气功能，比较两组犬胸水含量(TFC)、肺损伤前后双肺X光片、支气管肺泡液中乳酸脱氢酶(LDH-L)和碱性磷酸酶(ALP)的活性、两侧肺标本病理学变化程度及肺组织含水量。结果 全肺灌洗总量约30 ml/kg·b.w.，纤支镜至各肺段吸引后双肺灌洗液吸出率为75%～80%。A组与B组犬伤后动脉血氧分压(PaO2)均显著下降，B组犬灌洗后PaO2进一步轻度下降至(4.85±0.62) kPa，30 min后逐渐回升，伤后2 h各相应时段对应点PaO2均超过A组；B组肺损伤2 h后X光片双肺纹理较A组清晰，A组双肺可见异常密度增高影；B组肺水含量小于A组(P<0.05)，伤后2 h各相应时段对应点B组胸水含量较A组小(P<0.05)；B组潮气量在灌洗后呈回升趋势，较A组灌洗后2 h各时段对应点明显增大；B组支气管肺泡液中LDH-L、ALP在灌洗后各时段对应点较A组显著减低(P<0.01)；A组犬双肺水肿，呈暗红色“肝样变”，肺不张和局限代偿性肺气肿，Ⅰ、Ⅱ型肺泡上皮细胞和肺毛细血管内皮细胞损伤，B组两肺底部呈现暗红色“肝样变”，但较A组损伤程度及范围明显减小。结论  早期肺灌洗能有效减轻犬海水淹溺所致肺组织细胞损害，减轻炎症反应和肺水肿，改善肺功能。
难治性急性髓系白血病预后因素分析

目的  分析难治性急性髓系白血病(AML)的预后因素，为难治性AML治疗方案的选择提供理论基础。方法  选取接受了2个标准DA方案诱导治疗的48例复发性难治性AML患者，分析患者年龄、性别、对标准诱导治疗的反应，遗传学异常、骨髓中白血病细胞比例、外周血情况、髓外浸润以及乳酸脱氢酶(LDH)等因素对患者生存期的影响。结果  经Cox回归分析显示，患者在标准诱导治疗后达到完全缓解、缓解期大于6个月、有较好预后的细胞遗传学异常、骨髓白血病细胞比例小于50%、无严重贫血、无肝脾肿大和中枢神经系统白血病、血清LDH小于360 U/L者预后较好；而年龄、性别、外周血白细胞总数以及淋巴结肿大对患者生存期无明显影响。结论  对于有较好预后因素的AML患者应给予积极的治疗，争取较长的持续缓解期；对于预后差的病例应尽快予以异基因骨髓移植。
四脑室囊虫病的磁共振成像诊断

目的 探讨磁共振成像(MRI)对四脑室囊虫病的诊断价值。方法 回顾性分析经临床证实的32例四脑室囊虫病的MRI表现特点。脑MRI全部采用德国Siemens 1.0T Impact 超导型MRI机，选用SE序列。21例有脑CT对照。结果 32例四脑室囊虫病中，单纯性四脑室囊虫17例（53.1%），混合型15例（46.9%）。四脑室内单发囊虫30例，多发2例。囊泡在T1WI上等于或稍高于CSF信号，而在T2WI上等于或稍低于CSF信号。囊虫壁在T1WI上呈边缘光滑的细线样稍高信号影，而在T2WI上低于CSF信号。囊虫头节在矢状面T1WI上显示较为清楚，其中有24例附着于囊泡内壁的前下壁上；其在T1WI上与脑实质信号相近，而在T2WI上信号复杂，可表现为低于、等于或高于CSF的信号。CT难以显示四脑室囊虫头节或囊壁。结论 MRI是诊断四脑室囊虫病的首选影像学检查方法，对四脑室囊虫的诊断MRI优于CT。
Inhibitory effect of curcumin on proliferation of K562 cells involves down-regulation of p210~(bcr/abl)-initiated Ras signal transduction pathway

To investigate the effects of curcumin (Cur) on proliferation of K562 cells and the relationship between these effects and Ras signal transduction pathway activated by p210bcr/abl. METHODS: K562 cell line was used as a p210bcr/abl-positive cell system and HL-60 cell line as a p210bcr/abl-negative control; etoposide (VP-16), which has no influence on p210bcr/abl and has resistance to K562 cells[1], was used as an anticancer drug control to compare with curcumin. MTT was used to determine the proliferative effects of drugs on K562 and HL-60 cells. Western blot and flow cytometry were used to examine the abundance of signal protein molecules expressed in tumor cells. RESULTS: An exposure of K562 cells or HL-60 cells to Cur produced both concentration- and time-dependent increase in the anti-proliferative rate. Moreover, both cell lines had the same sensitivity to Cur (P>0.05). In contrast, HL-60 cells had more sensitivity to VP-16 than K562 cells in anti-proliferative effect (P<0.01). The abundance of p210bcr/abl as well as MEK-1 and c-JUN proteins were strongly down-regulated in curcumin-treated p210bcr/abl-positive K562 cells while c-JUN and MEK-1 proteins were only slightly down-regulated in p210bcr/abl-negative HL-60 cells. CONCLUSION: Curcumin inhibited the proliferation of K562 cells and the inhibitory effect was correlated with down-regulation of the abundance of p210bcr/abl, which may ultimately lead to retard the Ras signal transduction pathway. Curcumin might be worthy of being evaluated as a potential chemotherapeutic agent to CML.
脑实质内室管膜瘤的MRI诊断

目的 分析脑实质内室管膜瘤的MR表现，加深对本病的再认识。 方法 20例经我院手术病理证实的幕上脑实质内室管膜瘤，重点观察肿瘤的大小、部位、与脑室的关系、水肿情况和增强扫描特征。并分析发病的年龄及性别特点。 结果 本组脑实质内室管膜瘤多呈囊性或囊实性占位，体积多较大，一般大于5cm，部分较大肿瘤周围水肿不明显,多见于儿童和青少年；增强后表现为环形强化或囊腔壁结节强化或不均匀强化；与侧脑室后脚、下脚及三角区的关系密切。 结论 脑实质内室管膜瘤的MRI表现有一定的特异性，对脑肿瘤的鉴别诊断有一定的临床意义。
红藻氨酸作用后海马神经元胞膜表面的超微结构的原子力显微镜观察

目的观察原代培养神经元在红藻氨酸(KA)作用下细胞表面形态的三维构像变化。方法利用原子力显微镜(AFM)对大鼠海马神经元经不同浓度的KA(25和250 μmol/L，50和100 nmol/L)分别作用10 min和100 min后的表面结构进行纳米级水平扫描和观测。结果正常海马神经元表面光滑，起伏均匀、规律；KA作用后神经元呈退行性改变, 表现为胞体肿胀，胞膜表面粗糙，出现隆起和“孔洞”样结构，并且其变化程度分别与作用时间和KA浓度呈量-效关系。结论KA对海马神经元毒性作用后胞膜表面超微结构所产生的明显变化，可借助AFM清晰观察，并定量分析。
中国癫痫外科的临床和基础研究进展

系统阐述了目前我国现代癫痫外科在临床上的应用状况及所取得的长足进步。随着现代科学技术的发展，进一步认识和明确了外科手术的适用范畴，诊断和治疗手段不断取得进展；概括性总结了癫痫基础研究的发展状况，介绍了取得的主要进展；概要性提出了目前癫痫外科治疗存在的一些问题；初步预期了我国现代癫痫外科的未来。
正常成人脑组织弥散的定量研究

目的 定量研究正常成人脑组织内不同解剖部位的平均表观弥散系数(ADCav)值。 方法 24例MR检查正常的健康志愿者,行弥散加权成像,在ADCav图上测量脑内不同部位的ADCav值。 结果 正常成人ADCav值分别是：侧脑室体部脑脊液（2.86±0.3）*10-3mm2/s，皮层灰质（0.85±0.02）*10-3mm2/s，皮层白质（0.71±0.02）*10-3mm2/s；尾状核头部（0.75±0.02）*10-3mm2/s，豆状核（0.72±0.02）*10-3mm2/s，丘脑（0.74±0.02）*10-3mm2/s；内囊后肢（0.69±0.02）*10-3mm2/s，半卵圆中心（0.72±0.02）*10-3mm2/s，胼胝体膝部（0.76±0.02）*10-3mm2/s，胼胝体压部（0.77±0.02）*10-3mm2/s；两侧大脑半球之间无显著性差异。 结论 通过定量测量脑内ADCav值，获得成年国人的ADCav正常值，为鉴别病理改变提供基础对照。
数字人体系统的随机性

笔者主要介绍了数字人体系统的随机过程与随机涨落、数字人体系统的随机行走模型及其主方程、福克尔－普朗克方程、福克尔－普朗克方程的定态解和主方程与福克尔－普朗克方程的研究思路等，为深刻认识复杂的人体系统和数字人体研究提供了理论基础。
驻港部队军人心理应激状况及其影响因素分析

目的  研究驻港部队军人心理应激状况及其影响因素，为心理教育提供依据。方法  应用军人心理应激自评问卷、症状自评量表(SCL-90)、艾森克个性问卷(EPQ)及自编相关因素调查表，对211名男性驻港部队军人进行心理测试。结果  (1)211名驻港军人中有10人呈现较明显的心理应激，占4.74%；SCL-90中的躯体化、焦虑因子分显著高于军人常模，而敌对、恐怖及精神病性因子分显著低于军人常模。(2)驻港军人心理应激评分与EPQ的精神病质、神经质维度分呈显著正相关，与效度量表分呈显著负相关。SCL-90各因子分与EPQ的精神病质、神经质维度分呈正相关，与内外向质、效度量表维度分呈负相关。(3)经多元逐步回归分析，影响驻港军人心理应激的因素是:EPQ-N、休息、EPQ-L、人际关系及是否理解军训意义。结论  情绪不稳定及掩饰倾向严重的个性特征、休息、人际关系和是否理解军训意义是造成心理应激的主要因素。