mlsa-iai-msu-lab/ru_sci_bench_zho_cite_reranking huggingface dataset:
Analysis on the Interaction of Parameters of Single-contaminant Regeneration Recycling Water Systems

Method for constructing the optimal water supply line and formulas for calculating the targets for single-contaminant regeneration recycling water systems are improved to apply to the situation of variational pararneters in this article. Based on these extending methods, the effect of varying freshwater consumption and regenerated water flow rate on the optimizing results are investigated. The interactions of parameters of regeneration recycling systems are summarized. Finally, all the conclusions are illustrated from the results of mathematical programming through an example.
Nitrogen and Phosphorus Runoff Losses from Orchard Soils in South China as Affected by Fertilization Depths and Rates

Fertilizers are heavily applied in orchards of the hilly and mountainous topography of South China and may increase nutrient loadings to receiving waters. A simple runoff collecting system was used to measure the effects of different fertilization treatments on total N and P concentrations of surface runoff in a Chinese chestnut （Castanea mollissima Blume） orchard in Dongyuan County, Guangdong Province, China. In such orchards, fertilizer was typically applied in two short furrows or pits on either side of each tree. Treatments included three application depths （surface, 10 cm and 20 cm）, and three application rates （low, median and high）. Results showed that 90.5% of the runoff water samples had a total N concentration higher than 0.35 mg·L~(-1) and 54.2% had a total P concentration higher than 0.1 mg·L~(-1). Fertilizer application at all depths and at all but the lowest rate significantly increased total N and P concentrations in runoff water. Fertilization with chemical compound fertilizer at a soil depth of 20 cm produced significantly lower （P 〈 0.05） total N concentration in runoff than both surface and 10-cm depth fertilization, and significantly lower （P 〈 0.05） total P concentration in runoff than surface fertilization. Total N and P concentrations in runoff significantly increased with the application rate of organic fertilizers. With the exception of total P concentrations, which were not significantly different between the control and fertilization at a rate of 119 kg P ha~(-1) in organic form, all the other fertilization treatments produced significantly higher total N and total P concentrations in runoff than the control. A fertilization depth ≥ 20 cm and an application rate ≤ 72 kg N ha~(-1) or 119 kg P ha~(-1) for compound organic fertilizer was suggested to substantially reduce N and P runoff losses from hillslope orchards and to protect receiving waters in South China.
Effect of NO_3~--N Enrichment on Seawater Stress Tolerance of Jerusalem Artichoke （Helianthus tuberosus）

A hydroponic experiment with six treatments, i.e., 0% seawater （control）, 10% seawater, 25% seawater, 0% seawater ＋ N （7.5 mmol L~(-1) NaNO_3）, 10% seawater ＋ N （7.5 mmol L~(-1) NaO_3）, and 25% seawater ＋ N （7.5 mmol L~(-1) NaNO_3）, was carried out to study the effect of nitrogen addition on the growth and physiological and biochemical characteristics of Jerusalem artichoke （Helianthus tuberosus） seedlings under seawater stress. The 10% seawater stress treatment had the least effect on plant growth while at 25% seawater growth was significantly inhibited. The malondialdehyde content and electrolyte leakage in leaves under 10% seawater were similar to those of the control, but significantly higher under the 25% seawater stress. The activities of superoxide dismutase, peroxidase and catalase in the leaves increased concomitantly with increasing seawater concentration and time. Proline and soluble-sugars in the leaves and Na~＋, K~＋, and Cl~- contents in shoots and roots increased significantly with the concentration of seawater increasing. Nitrogen addition resulted in increasing fresh and dry weights of shoots and roots compared with seawater treatment without N. Nitrogen supplementation also significantly enhanced the activities of antioxidant enzymes in leaves. Addition of N to seawater enhanced the contents of proline and soluble-sugars in the leaves and K~＋ and total-N in the aerial parts and roots of H. tuberosus, but it resulted in declined concentrations of Na~＋ and Cl~- in the aerial parts and roots. Nitrogen addition ameliorated the toxicity of seawater by improving the antioxidative enzymes, accumulating of proiine and soluble-sugars, and altering the distribution of inorganic ions in H. tuberosus.
Comparison between BCR sequential extraction and geo-accumulation method to evaluate metal mobility in sediments of Dongting Lake, Central China

The form in which a metal exists strongly influences its mobility and thus, the effects on the environment. Operational methods of speciation analysis, such as the use of sequential extraction procedures, are commonly applied. The Dongting Lake, the second largest fresh-water lake in China, contains three China wetlands of international importance, the East Dongting Lake, South Dongting Lake, and West Dongting Lake. In this work, an optimized BCR sequential extraction procedure was used to assess the environmental risk of Cd, Cr, Cu, Ni, Pb and Zn in contaminated sediment of the Dongting Lake. The procedure was evaluated by using a certified reference material, BCR701. The results of the partitioning study indicated that in the lake sediments, more easily mobilized forms （acid exchangeable） were predominant for Cd, particularly in the samples from the East Dongting Lake. In contrast, the largest amount of Pb was associated with the iron and manganese oxide fractions and Cu, Zn, Cr, and Ni analyzed were mainly distributed in residual phase at an average percentage greater than 60% of the total metals. The potential risk to the lake＇s water contamination was highest in the East Dongting Lake based on the calculated contamination factors. On the other hand, the total metal content was determined as well by inductively coupled plasma and mass spectrometry （ICP-MS） and assessed by using geo-accumulation index. The assessment results using geo-accumulation index were compared with the information on metal speciation. Both were correspondent with each other.
Effect of Ryegrasses on Soil Runoff and Sediment Control

Living plants and plant roots can reduce runoff and soil erosion. Using a rain simulator, a series of soil erosion experiments were conducted to study the influence of living roots and canopies of ryegrasses （Lolium perenne L.） during the growing season on sediment yields and runoff of a silt loam soil. The results indicated that during the growing season, decrements in runoff and sediment yields increased with time. Sediment yields （τ~2 = 0.999） and decrements in runoff （τ~2 = 0.946） were closely related to the root surface area density. The contributions of roots and canopies of ryegrasses to the reductions in runoff and sediment yields were different. Canopies usually contributed more to the runoff decrement than the roots, whereas roots contributed up to 96% of the decrease in sediment yields in the late stage of the growing season.
Yield and Nicotine Content of Flue-Cured Tobacco as Affected by Soil Nitrogen Mineralization

Nitrogen （N） supply is the most important factor affecting yield and quality of flue-cured tobacco （FCT）. A field experiment and an in situ incubation method were used to study the effects of soil N mineralization in the later stages of growth on yield and nicotine content of FCT in Fenggang and Jinsha, Guizhou Province. The yield and market value of FCT at Fenggang were much lower than those at Jinsha. However, the nicotine content of middle and upper leaves was much higher at Fenggang than at Jinsha when the same rate of fertilizer N was applied, which might be due to a higher N supply capacity at the Fenggang site. At later stages of growth （7-16 weeks after transplanting）, the soil net N mineralization at Fenggang （56 kg N ha~(-1)） was almost double that at Jinsha （30 kg N ha~(-1)）. While soil NH_4-N and NO_3-N were almost exhausted by the plants or leached 5 weeks after transplanting, the N taken up at the later growth stages at Fenggang were mainly derived from soil N mineralization, which contributed to a high nicotine content in the upper leaves. The order of soil N contribution to N buildup in different leaves was： upper leaves 〉 middle leaves 〉 lower leaves. Thus, soil N mineralization at late growth stages was an important factor affecting N accumulation and therefore the nicotine content in the upper leaves.
Ecological and Economic Benefits of Vegetation Management Measures in Citrus Orchards on Red Soils

A three-year experiment was conducted to investigate and compare the economic and ecological benefits of six types of vegetation management measures in citrus orchards of the hilly red soil region of the eastern part of China. Six vegetation treatments, including tillage without herbicide （clean tillage） and no tillage without herbicide （sod culture） and with herbicide paraquat （paraquat）, glyphosate （glyphosate）, glyphosate-glyphosate-paraquat （G-G-P）, and paraquatparaquat-glyphosate （P-P-G）, were applied in the citrus orchards on a clayey red soil with slopes of 8° and 13°and a sandy soil with slope of 25°. The results showed that the sod culture, paraquat, glyphosate, G-G-P, and P-P-G treatments reduced surface runoff by 38.8%, 42.5%, 18.7%, 28.7%, and 37.5%, then the soil-water losses by 55.5%, 51.7%, 39.9%, 46.8%, and 50.0%, and the N, P, and K nutrient losses by 60.3%, 50.2%, 37.0%, 41.8%, and 45.4%, respectively, as compared with the clean tillage treatment. The weed regeneration ratios with the treatments of clean tillage without herbicide, paraquat, glyphosate, G-G-P, and P-P-G were reduced by 55.1%, 67.2%, 30.3%, 36.8%, and 51.2%, respectively, as compared with the sod culture. The sod culture, paraquat, glyphosate, G-G-P, and P-P-G treatments could increase the soil fertility （annual accumulation of N, P, K, and OM） by 7.1%, 6.9%, 5.3%, 6.2%, and 6.6%, respectively, whereas the clean tillage treatment without herbicide reduced soil fertility by 4.4% after the three-year experiment. The citrus fruit yields in the treatments of paraquat, glyphosate, G-G-P, and P-P-G increased by 7%-10%; the soluble solid, total sugar, total acidity, sugar-acid ratio, and single fruit weight of citrus fruits of all treatments except sod culture significantly （P 〉 0.05） exceeded that of the clean tillage treatment. In general, the paraquat treatment showed the best economic and ecological benefits among the six treatments; therefore, it could be regarded as the best available vegetation management measure in citrus orchards of hilly red soil region to retain water and soil, enhance soil fertility, and improve the yield and quality of citrus.
Eco-Environmental Vulnerability Evaluation in the Yellow River Basin, China

Using remote sensing （RS） data and geographical information system （GIS）, eco-environmental vulnerability and its changes were analyzed for the Yellow River Basin, China. The objective of this study was to improve our understanding of eco-environmental changes so that a strategy of sustainable land use could be established. An environmental numerical model was developed using spatial principal component analysis （SPCA） model. The model contains twelve factors that include variables of land use, soil erosion, topography, climate, and vegetation. Using this model, synthetic ecoenvironmental vulnerability index （SEVI） was computed for 1990 and 2000 for the Yellow River Basin. The SEVI was classified into six levels, potential, slight, light, medium, heavy, and very heavy, following the natural breaks classification. The eco-environmental vulnerability distribution and its changes over the ten years from 1990 to 2000 were analyzed and the driving factors of eco-environmental changes were investigated. The results show that the eco-environmental vulnerability in the study area was at medium level, and the eco-environmental quality had been gradually improved on the whole. However, the eco-environmental quality had become worse over the ten years in some regions. In the study area, population growth, vegetation degradation, and governmental policies for eco-environmental protection were found to be the major factors that caused the eco-environmental changes over the ten years.
A Modified Model of Ecological Footprint Accounting and Its Application to Cropland in Jiangsu, China

Based on the theory of emergy analysis, a modified model of ecological footprint accounting, termed emergetic ecological footprint （EMEF） in contrast to the conventional ecological footprint （EF） model, is formulated and applied to a case study of Jiangsu cropland, China. Comparisons between the EF and the EMEF with respect to grain, cotton, and food oil were outlined. Per capita EF and EMEF of cropland were also presented to depict the resources consumption level by comparing the biocapacity （BC） or emergetic biocapacity （EMBC, a new BC calculation by emergy analysis） of the same area. In the meanwhile, the ecological sustainability index （ESI）, a new concept initiated by the authors, was established in the modified model to indicate and compare the sustainability of cropland use at different levels and between different regions. The results from conventional EF showed that per capita EF of the cropland has exceeded its per capita BC in Jiangsu since 1986. In contrast, based on the EMBC, the per capita EMEF exceeded the per capita EMBC 5 years earlier. The ESIs of Jiangsu cropland use were between 0.7 and 0.4 by the conventional method, while the numbers were between 0.7 and 0.3 by the modified one. The fact that the results of the two methods were similar showed that the modified model was reasonable and feasible, although some principles of the EF and EMEF were quite different. Also, according to the realities of Jiangsu＇ cropland use, the results from the modified model were more acceptable.
人工四倍体鲤鲫后代遗传同一性的FCM及RAPD证明

人工四倍体鲤鲫是本实验室采用人工染色体组叠加构建的一个以雌核发育为生殖模式的鲫克隆系，现已繁殖至第五代。它生长快、体型好、抗病力强、易捕捞，比普通二倍体鲫和三倍体鲫经济性状更优良，将具有广阔的生产应用前景。从表型看，子代是由四倍体鲤鲫原代母本拷贝而成，与母本极其相似，表明异源精子启动发育的后代无分离现象。我们曾对原代四倍体雌核发育生殖方式的遗传进行过基因组、形态学和同工酶分析研究，为了获得更进一步的证据，本文应用FCM和RAPD分子遗传标记方法进行验证。[第一段]
不同培养条件对具鞘微鞘藻生物量和多糖产量的影响

流沙表面形成的藻类结皮，是流动沙丘固定的首要标志。一般来说，当流动沙丘上形成了荒漠藻结皮后，将经过半固定沙丘向固定沙丘演替，在演替过程中，还将依次出现地衣、苔藓和高等植物，其中荒漠藻扮演着极其重要的角色。固氮蓝藻能将大气中的游离态氮（N2）固定为氮素化合物，为后续植物提供氮源。结皮中外源多糖和生物量的加入，也有利于提高土壤中各种酶活性。荒漠藻结皮的强度与其生物量有关，生物量越高藻结皮的风蚀度越小，极限摩擦力越大。另外，很多荒漠藻能大量分泌胞外多糖，这些多糖为带负电荷的多聚大分子，可以与土壤中的阳离子形成比较牢固的土壤团聚体，从而将易流动的沙粒固定下来。[第一段]
影响HBV DNA测定的标本因素

乙型肝炎病毒核酸（HBVDNA）的定量测定在乙型肝炎病人的临床用药、治疗监测及判断预后方面具有重要的意义。目前，HBVDNA的测定方法主要是用实时荧光定量聚合酶链反应（FQ—PCR），该方法具有实时监测，操作简单，定量范围宽，结果重复性好等优点，被全国许多医院的临床实验室接受。但因FQ—PCR敏感性高，卫生部临检中心对方法中的各个环节制定了规范性的要求，以消除除PCR本身外的外界影响因素。本研究主要通过对测定标本溶血、黄疸、脂血对PCR反应的影响，探讨实验中这些因素的干扰究竟有多大，为规范送检标本要求提供依据，对无法消除这些性状的标本的实验结果进行客观的判断分析。
从婴儿粪便中分离出1株福氏志贺菌4c型

患儿，男，13月龄，因腹泻2d收入我院感染科。入院时体温37℃，粪便呈脓血样。取新鲜黏液样大便直接接种SS、麦康凯及血平板，置36．5℃培养18～24h，观察菌落形态，染色镜检，进行生化反应、血清学试验及药敏试验，结果如下。
关于原始尺寸原理的适用性

以平面三角桁架为例，通过放弃应用原始尺寸原理，即在变形后的位形上建立平衡方程，并结合变形协调关系考虑几何非线性，得到了桁架各杆轴力的解，进而给出各杆应力和中间铰位移以及各杆转角的解．最后给出了钢质、木质和橡胶杆桁架的3个算例，还得到了应力的相对误差估计式．分析结果表明应用原始尺寸原理所带来的杆内应力的相对误差与杆内名义应变相同，对于金属桁架在满足强度条件的范围内，应用原始尺寸原理所带来的误差是可以忽略的，而对于橡胶桁架来说其误差是需要考虑的．
拉、压静不定问题变形几何分析中存在问题

建立拉、压静不定问题的变形几何条件是材料力学和工程力学教学的一个难点，而教学实践表明这个难点问题一直都没有得到妥善地解决．对现行教材及教学中存在的问题，提出了建议的教学方法供同仁探讨．
砂质土壤中水溶性磷提取方法的比较

目前，水溶性磷的提取方法和条件还没有统一，常用的提取剂除去离子水外，还有0．01mol·l~(-1)CaCl_2等中性盐，用去离子水直接提取时，因电介质浓度太低，提取物经离心后仍可保留较多的细胶体，这些细胶体不能通过普通滤纸过滤而消除，必须采取0．45μm微孔膜过滤才能有效地去除胶体物质，但这大大增加了测试的费用和时间，因此，许多研究采用稀溶液来替代去离子水来提取水溶性磷，但当土壤溶液中引入高浓度的钙离子时，溶液中的正磷酸根可与Ca离子作用形成溶解度较低的化合物，这可能会影响土壤水溶性磷的提取效果，而采用稀KCl可能避免这一问题，为此，本文就砂质土壤中水溶性磷的提取方法进行了比较研究。
三系杂交水稻秋季制种优质高产技术

根据湖北省黄冈市多年三系杂交稻秋季制种实践,总结了父本稀播大苗稀寄插两段育秧、父本窄行宽株扩大父母本间距、低耗轻型肥水管理等优质高产制种技术措施.
节氮栽培对超级杂交早稻株两优02生长发育和产量的影响

在优化栽培和常规栽培条件下,以硫包衣尿素(SCU)为供试氮肥,研究了节氮栽培对超级杂交早稻株两优02生长发育和产量的影响.结果表明:节氮20%(纯氮用量142.5 kg/hm~2)基本不影响水稻干物质生产,与不节氮对照(纯氮用量180.0kg/hm~2)产量差异不显著;节氮40%(纯氮用量105.0 kg/hm~2)在优化栽培条件下,对干物质积累和产量没有显著影响,但在常规栽培条件下,有效穗数、每穗粒数和干物质积累量均下降,减产显著.节氮栽培技术应主攻有效穗数,兼顾每穗实粒数.
气相色谱法对茶园土壤中3种农药残留量的检测

通过对来自六种不同茶园土壤的三种农药残留量的监测,对茶同环境质量现状进行了较系统的调查,并进行了茶园的污染评价.本研究以丙酮为提取剂,样品经提取和浓缩后,采用毛细管柱气相色谱分离,电子捕获检测器(ECD)检测农药残留,外标法定量.不同种类茶园土壤的农药残留量是不同的.用气相色谱法分析茶园土壤中农药残留,全面了解茶园中拟除虫菊酯类农药残留量现状,有利于更好地采取行之有效的措施降低农药残留量,对促进茶叶的出口贸易也起到重要的作用.
替尼泊甙联合其他抗癌药对胃癌细胞的作用

目的 观察替尼泊甙(VM-26)联合其他抗癌药对胃癌细胞的作用,探讨胃癌化疗的新方案.方法 用色唑蓝比色法(MTT)测定VM-26单药及联合用药对胃癌细胞的抑制率,比较各单药及联合用药的抑制率大小.结果 在本试验浓度范围内,细胞抑制率随浓度的增加而增加;在相同浓度下,单药抑制率从大到小依次为紫杉>替尼泊甙>顺铂>依拓泊甙>羟基喜树碱>5-氟尿嘧啶;联合用药抑制率也随浓度的增加而增加.结论 替尼泊甙可抑制胃癌细胞的生长;替尼泊甙与顺铂联合用药,有协同作用;而其与5-氟尿嘧啶联合,有相加作用;其与紫杉醇和羟基喜树碱联合,有拮抗作用.
细胞骨架相关蛋白SM22α与肿瘤

平滑肌22α(smooth muscle 22 alpha,SM22α)蛋白是一种细胞骨架相关蛋白,其在种属间的高度同源性和进化上的高度保守性提示了其重要的生物学意义.最新研究发现,SM22α在多种肿瘤组织中表达异常,该蛋白除可通过与肌动蛋白相互作用参与细胞骨架重构外,还可作为信号分子参与细胞生长,细胞外基质降解和血管生成.其作为一种新型抑癌基因,在肿瘤发生,发展中的作用日益成为人们关注的焦点.本文就SM22α的结构特征、表达特点及其与肿瘤的关系进行综述.
内含肽介导的新型蛋白质纯化技术

内含肽(intein)的自切剖功能在蛋白质工程领域有着广泛的应用,尤其是在蛋白质纯化方面,将内含肽与亲和纯化技术联合应用,使得传统的亲和纯化方式有了重大的突破.近年来,随着内含肽的研究不断深入,一批内含肽介导的新型蛋白质纯化技术不断出现.新技术依靠内含肽的自切割功能去除亲和标签,避免了传统工艺中因外加蛋白酶而带来的诸多麻烦;新的聚合材料的引入又成功地避开了亲和树脂柱的使用,不仅优化了工艺,也大大降低了纯化的成本,为在工业化大生产中的应用奠定了基础.
P-TEFb在转录延伸中的作用及其与人类疾病的关系

正性转录延伸因子b(positive transcription elongation factor b,P-TEFb)由CDK9和cyclin TI(或cyclin T2a、cycfin T2b、cyclin K)组成,对真核生物RNA-poly II所介导的转录延伸具有正性调节作用.体内P-TEFb存在活性型(P-TEFb-Brd4)和非活性型(P-TEFb-7SKsnRNA.HEXIMl)两种形式,二者间的转变是调节转录延伸的关键.近年来发现P-TEFb与HIV-1感染和心肌肥大等疾病密切相关.
细胞凋亡中的核/质转运

核/质转运和细胞凋亡是两种截然不同的细胞内过程,它们是密切相关的.在细胞凋亡过程中,细胞核的凋亡损伤伴随着多种多样的促凋亡因子在细胞质澈活并进入细胞核.DNA损伤产生的死亡信号也需要传递到细胞的各个部位,来确保细胞死亡的协调执行.因此,凋亡信号的核,质穿梭是细胞凋亡不可或缺的一部分.
化学发光酶免疫技术测定人转铁蛋白方法的建立及应用

糖尿病性肾病(diabetic nephropathy, DN)是糖尿病最常见的肾靶器官并发症之一,发病率高达30%~40%,约1/3因发现较晚及缺乏良好的预防及治疗措施而致肾功能衰竭.目前常用的检测方法是定期检查尿中白蛋白及a2-微球蛋白等来发现肾功能的变化.尿微量白蛋白排泄率(UARE)是公认的DN早期诊断指标,经我们多年的研究和临床观察发现,在肾脏病变早期,患者尿中转铁蛋白(Tf)的变化升高比白蛋白更加明显,是观察早期肾功能变化较理想的指标.
精神活性物质所致认知功能障碍的研究进展

精神活性物质（psychoactive substances）又称物质（substa Hces）或成瘾物质、药物（drug）。根据药理特性，可将其分为以下几类：①中枢神经系统抑制剂：如巴比妥类、苯二氮革类、酒精等；②中枢神经系统兴奋剂：如苯丙胺类、咖啡因、可卡因等，苯丙胺类包括苯丙胺（安非他明）、甲基苯丙胺（俗称冰毒）、3，4．亚甲二氧基甲基安非他明（俗称摇头丸，MDMA，ecstasy）、哌醋甲酯（利他林）和麻黄素等；③大麻；④阿片类：如海洛因、吗啡、鸦片、美沙酮、度冷丁等；⑤其它：如致幻剂和烟草等。精神活性物质的使用已经成为严重的社会问题，其不仅能引起心理、生理症状，使精神活动能力下降，近年的研究还越来越关注其对认知功能的损害。本文复习此类文献，对主要精神活性物质对认知功能的影响及其可能的机制作一综述。
我国组织学与胚胎学学科发展的几位奠基人

在复旦大学上海医学院成令忠教授逝世5周年之际,特摘录他去世前的精心之作"组织学发展概况"中的部分内容,介绍我国解剖学、组织学、胚胎学领域一些先辈.我们崇敬那些为我国解剖学、组织学和胚胎学发展铺砖奠基的老一辈科学家,更缅怀我们大家熟悉的为组织学与胚胎学学科建设鞠躬尽瘁的成令忠教授.
小分子多肽BH3、SMAC类似物在促肿瘤细胞凋亡中的应用

肿瘤细胞的凋亡一般通过内源性和外源性两条途径实现.凋亡途径中涉及到4类蛋白分子:细胞膜死亡受体、胞质蛋白caspases、 Bcl-2蛋白家族、细胞色素C和Smac等线粒体物质.因此,肿瘤细胞中蛋白-蛋白的相互作用几乎是凋亡调节的主要特征.用小分子多肽(small molecular peptides)模拟蛋白-蛋白的相互作用,为肿瘤的治疗提供了策略[1].
帕金森病的脑小胶质细胞激活

帕金森病(Parkinson Disease,PD)是由于黑质内多巴胺(DA)能神经元减少超过80%时,纹状体中的神经递质DA和乙酰胆碱之间的相互拮抗作用失调而导致的神经系统疾病.黑质DA神经元的大量减少普遍认为与多种因素参与有关,近年来,诸多研究显示小胶质细胞参与的炎症反应与PD关系密切,其炎症机制日益受到关注.现将近年PD中小胶质细胞激活的有关文献综述如下.
无源光网络技术在配网自动化中的应用

文章分析了无源光网络(passive optical network,PON)技术的特点和优势,探讨了PON技术在配网自动化通信中的应用,以实际配电网络改造项目为基础着重介绍了馈线层、变电所层及主站层的通信组网方案.
腰椎间盘髓核脱出游离至椎管后方1例报告

1 临床资料患者严某,女,60岁,以"右下肢麻木10年,加重伴双下肢疼痛1年,间歇性跛行3个月" 于2007年4月6日入院(病案号:397146).患者于10年前无明显诱因出现右下肢麻木,症状尚可耐受,未予特殊诊治,口服药物等保守治疗后症状有所改善.1年前开始出现双下肢疼痛,以左侧为重,行牵引、推拿及口服对症药物后症状改善不明显,3个月前症状明显加重,并出现间歇性跛行,行走100 m左右即需坐下休息,严重影响工作和生活,遂赴我院治疗.
有机-无机生物复混肥在水稻上的肥效试验

2007年早造对有机-无机生物复混肥在水稻野丝占上的施用效果进行了试验，结果表明，在水稻上施用有机-无机复混肥．每667m。产量比常规施肥处理增加16．7kg，增产率为3．36％，具有一定的增产效果，但差异不显著；有机-无机复混肥作基肥一次性施用，操作简单方便，省工省时，能更好地改善土壤的理化性质，在获得相当产量的基础上，有利于减轻因长期施用化学肥料造成的环境污染，具有推广应用的广阔前景。
兴宁市水稻专用配方肥示范应用效果调查

2007年晚造进行连片示范区配方施肥肥效调查结果表明，水稻在分蘖期生长壮旺．孕穗期长势稳健．黄熟期青枝腊秆，有效穗数为16、53万条，每穗总粒数为195、5粒，每穗实粒数为159．3粒，千粒重为25．5g，每667m。理论产量为671、5kg、实割产量为689、6kg，说明专用配方施肥技术节本增效明显，具有一定的推广价值。
烤烟新品种粤烟96选育研究

介绍了利用系统选育技术从K326大田变异株中选育优良烤烟新品种粤烟96的过程，指出该品种具有大田生长整齐、长势强、株型较好、适应性广、遗传性状稳定等优点，其主要经济指标比对照种K326明显提高，而外观质量、化学成分、工业使用价值、抗病性与K326相当。
浅谈中医对带下病的认识与研究

中医学对妇女特点的认识有着悠久的历史，指出经、带、胎、产是妇女主要的病理范围。通过古代文献和医案资料，阐释带下病病名的源流、带下的生理与病理特点和辨证论治，并指出疾病治疗中值得注意的几个问题。
中风先兆证的早期认识与防治

1中风先兆证的相关概念关于中风先兆证可以追溯到先秦时期，《素问·调经论》有“气血未并，五脏安定，肌肉蠕动，命曰微风”的记载，将中风先兆证称为“微风”，这是对现代中风先兆证临床表现的早期认识，也是中风病内风致病从气血的最早论述。宋·方勺的《泊它编》：“风淫未疾，谓四肢……悉归手足故也，而病情有轻重，故病轻者俗称小中”，这远比西方医学直到本世纪六七十年代才逐渐认识短暂性脑缺血发作（TIA）是脑卒中发病的重要先兆要早得多。
清热解毒、燥湿活血法治疗白塞病初探

白塞病是一种全身慢性疾病，其临床表现以复发性口腔溃疡、生殖器溃疡、皮肤和眼部病变最为常见，但关节、心血管、胃肠道、神经系统、肺、肾等全身各脏器均可受累，严重者甚至发生失明、大血管栓塞、消化道穿孔、出血以及中枢神经系统病变等，乃至危及生命。目前，对于白塞病西医尚缺乏满意的治疗手段，我们在临床中采用清热解毒、燥湿活血法治疗白塞病取得了一定的疗效，下面简要述之。
海藻玉壶汤对碘缺乏致甲状腺肿大鼠甲状腺功能和形态的影响

碘摄入不足可以引起碘缺乏病（Iodine deficiencv disorders，IDD）。碘过量可对甲状腺造成危害，除能增加甲状腺功能亢进症，自身免疫甲状腺病，甲状腺功能减退症和乳头状甲状腺癌的患病率外，还能造成甲状腺肿。1999年和2002年两次全国碘缺乏病（IDD）监测报告显示，随着尿碘值由低到高，甲肿率呈由高到低，再由低到高的M形变化。20世纪60年代，Suzuki H曾报告北海道居民因食用昆布引发了地方性甲状腺肿。
吗啡蛛网膜下腔镇痛剂量的探讨

目的探讨吗啡注入蛛网膜下腔剖宫产产妇术后镇痛的较为理想的剂量。方法选取ASAⅠ或Ⅱ级，足月妊娠需剖宫产产妇120例，随机均分为四组。采用配方为0．5％布比卡因2ml＋50％GS0．2ml＋吗啡行蛛网膜下腔麻醉。四组吗啡剂量分别是Ⅰ组0．2mg、Ⅱ组0．3mg、Ⅲ组0．4mg和Ⅳ组0．5mg。麻醉平面控制在T_8以下。观察新生儿Apgar评分；48h内每12小时的镇痛效果及呼吸抑制、恶心呕吐、皮肤瘙痒等不良反应。结果Ⅲ和Ⅳ组术后镇痛时间明显较I和Ⅱ组长（P〈0．01），Ⅳ组恶心呕吐及皮肤瘙痒显著高于Ⅰ、Ⅱ、Ⅲ组（P〈0．01），四组新生儿Apgar评分差异无统计学意义。结论0．4mg吗啡用于蛛网膜下腔是剖宫产产妇术后镇痛较为理想的剂量。
中药治疗急慢性咽喉炎疗效观察

本观察病例共375人次，均为本院门诊及住院确诊为“急慢性咽喉炎”的患者。年龄18岁～60岁，男性223例，女性152例，平均年龄为31岁，按接诊顺序依次分别纳入A（中药＋雾化组）、B（中药组）、C（雾化组）3组（每3人1轮）。其中自选治疗方案者不纳入本次观察中，其位由后来患者填上。
李振华脾易虚胃易滞肝易郁病机学思想诊治举隅

李振华教授是卫生部首批国家级名老中医，擅治疑难杂证，且尤对脾胃病的诊疗独具特色。基于脾、胃、肝各自的生理、病理特点及相互间的特殊关系，提出脾易虚、胃易滞、肝易郁的发病特点及脾宜健、胃宜和、肝宜疏的治疗特色，关键还在临证中常将上三法熔于一炉，灵活机动地用其独特的辨证用药，治疗常见及疑难脾胃病证疗效颇佳。兹举验案两则如下。
仙灵骨松胶囊治疗糖皮质激素诱发骨质疏松实验研究

选择6月龄SD大鼠（白求恩国际和平医院实验动物中心提供）60只，体重200g±20g，普通级，饲养于室温23℃、相对湿度80％的清洁环境中，自由饮水和摄食，使用标准饲料（白求恩国际和平医院实验动物中心提供）。
试论卫气的科学基础

关于卫气的来源，各家有争议，有卫气来源于上焦说、中焦说、下焦说，有来源于三焦说等。追本溯源，从《内经》原文分析，卫气来源于三焦说更为合适，即卫气者生于中焦，宣发于上焦，根于下焦。
SNAP指数监测不同剂量芬太尼与丙泊酚用于人工流产术的临床观察

丙泊酚复合芬太尼已广泛应用于门诊人工无痛流产术，但大剂量芬太尼可引起胸、腹壁肌僵硬、呼吸抑制、恶心等不良反应，常常影响麻醉效果。本研究通过使用SNAP指数（SI）监测麻醉深度，以寻求最佳剂量的芬太尼复合丙泊酚用于无痛人工流产术。
论我国衍生工具内部控制机制的构建

建立健全内部控制，是有效防范衍生工具风险的关键。国内外发生的众多衍生工具灾难无不表明内部控制对衍生工具风险管理的重要性。然而，从我国来看，许多金融机构和其他从事衍生品业务的企业尚未建立有效的、面向衍生工具业务的内部控制机制。在我国衍生工具业务即将进入一个新的发展阶段的时刻，监管部门应当借鉴国外的先进经验和做法，制定专门的衍生工具内部控制指引，以促进和指导企业建立与完善相关的内部控制。
吸水性材料在油水分离中的应用

超吸水性纤维在普通自来水条件下能吸附本身重量10-50倍的水分，利用该纤维的亲水疏油特性制成环状滤芯，能有效地阻止较小直径（d≈10μm左右）油粒的通过，从而达到油水分离的目的。
我国杂交粳稻发展合作机制研究

本文介绍了杂交粳稻国内外发展概况，指出了我国杂交粳稻发展面临的问题与困难，提出了我国杂交粳稻发展的合作机制，包括建立杂交粳稻产业联盟、杂交粳稻协作组和杂交粳稻公共服务平台。
狂犬病病毒抗原的体外检测方法

目的狂犬病毒抗原含量是狂犬病疫苗的主要质量指标之一,疫苗的研制过程中常需要及时进行抗原的检测。准确、简便的测定方法可以大大提高工作效率,同时也为狂犬病疫苗精制方法和工艺的筛选、确定及优化提供依据。合适的检测方法也可为临床诊断狂犬病提供方便。本文简要综述几种有关狂犬病毒抗原的检测方法。
当归芍药散实验研究近况

当归芍药散始载于《金匮要略》，是主治妊娠腹痛的良方，临床上该方对内科疾病、外科疾病也疗效卓著。随着当归芍药散临床应用领域的不断扩展，该方作用机理的研究也不断深入，现就近十年来对本方的实验研究综述如下：
超临界CO_2萃取灵芝孢子油的工艺条件研究

灵芝孢子是灵芝在发育后期产生释放出的种子，是灵芝的精华，而灵芝孢子油中包含了灵芝孢予中的三萜类、多糖类及核苷类等全部有效成分，是灵芝孢子有效成分的集合体，具有多种生理活性，尤其是对肿瘤的抑制作用已经由药理实验得到公认。
基于OOSEVM的城乡地籍一体化数据组织方法

在定义了面向对象空间实体矢量模型（OOSEVM）的基础上，结合城乡一体化地籍管理的实际需求，设计基于OOSEVM城乡一体化地籍数据组织形式，具体包括基于OOSEVM的城乡地籍一体化对象体系构成以及基于OOSEVM的地籍信息数据库的构建方法。该数据组织方法的提出可有效地解决地籍信息的多属性、多时态和一体化等问题，实现城乡地籍数据的无缝集成以及土地利用管理和权属管理的一体化。
基于GIS的案件预测建模与实现

在系列案件中，如果能预测案件发生的地点和时间，就可以合理安排警力，也可以采取富有针对性的案件侦破策略，提高刑事案件的侦破效率。探讨如何对这一问题进行数学建模，并基于ESRI公司的AreEngine进行编程实现。
利用高分辨率遥感影像获取建筑物高度信息方法的分析

城镇化进程的加剧促使违章建筑蜂拥出现，政府部门有必要实施对城镇建设用地的监测。介绍从高分辨率遥感影像上获取建筑物高度的方法，对在此领域所开展的研究进行总结、分析，探讨各种方法的可行性。
上边界的选取对GPS掩星反演结果影响的分析

介绍利用GPS掩星数据反演大气参数的方法。对GPS／MET和CHAMP数据不同上边界和统计优化方法的反演结果进行研究和分析，并与UCAR，GFZ网上公布的结果进行对比，指出合理的上边界条件。
利用AutoCAD数据建立地籍数据库方法研究

提出手工编辑与程序自动处理相结合的数据转换方法，该方法相当大程度地保证了转换的正确性，且具有较高的自动化程度，已运用此方法成功建立了山西省阳城县地籍空间数据库。
论旅游地图的文化内涵与审美价值

旅游及地图的文化与审美属性决定了旅游地图的文化与审美属性。从调查分析我国旅游地图的现状与主要存在问题着手，指出当前我国旅游地图在文化内涵与审美价值上的缺失，并进一步分析阐述旅游地图的文化与审美属性，对旅游地图的编制设计提出看法和建议。
线粒体脑肌病MELAS型MRI表现1例

1病历简介 男，31岁。间断性四肢抽搐10余年，头外伤3个月，听力下降2个月，视物不清5天入院。无明显诱因四肢抽搐10余年，每年发作1-2次，发作时紧握双拳，双眼上吊，牙关紧闭，口吐白沫，伴意识不清，小便失禁，每次持续2-3min，以夜间发作及劳累后明显。入院前3个月从床上摔倒在地，当地医院诊为：蛛网膜下腔出血、
CS-3000PLUS血细胞分离机采集37名供者外周血造血干细胞效果的分析

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