mlsa-iai-msu-lab/ru_sci_bench_zho_cite_reranking huggingface dataset:
Exact periodic solution in coupled nonlinear Schrodinger equations

The coupled nonlinear Schrodinger equations (CNLSEs) of two symmetrical optical fibres are nonintegrable, however the transformed CNLSEs have integrability. Integrability of the transformed CNLSEs is proved by the Hamilton dynamics theory and Galilei transform. Making use of a transform for CNLSEs and using the ansatz with Jacobi elliptic function form, this paper obtains the exact optical pulse solutions.
月经量过多21年,加重伴下腹胀痛1月余

患者,38 岁,因“月经量过多21 年,加重伴下腹胀痛1 月余”于2007 年5 月10 日入院。17 岁月经初潮,周期28～30 天,规则,经期7～10 天,经量多,有凝血块,需用卫生巾20～30 张,无痛经。2 年前2005 年1 月) ,月经量明显增多,需用卫生巾30～40 张,经期10～12 天,周期尚规则,28～30 天。经常出现牙龈出血、皮肤瘀斑,紫癜。遂到四川大学华西医院检查,行诊断性刮宫,病理报告“子宫内膜增生期改变”。因经常头晕、乏力,血液科检查Hb 60 g/ L ,血细胞比容0127 ,血小板152 ×109/ L ,PT 1315 秒、APTT 3115 秒,血块收缩时间24 小时不收缩,红细胞脆性试验正常,血红蛋白电泳Hb2A 2211 %,抗碱血红蛋白< 2 %,铁蛋白2179μg/ L ,凝血因子Ⅷ活性200 %,束臂出血时间> 15 分钟,血小板聚集试验对二磷酸腺苷(ADP) 、肾上腺素(EPI) 和瑞斯托霉素(RIS)均反应低下。诊断“血小板无力症”,予间断输血治疗。2005 年3 月2 日感下腹胀痛,到内江市第一人民医院B超检查提示“子宫正常大小,右附件区见61 mm ×40 mm×36 mm椭圆形无回声包块;左附件区见35 mm×23 mm×21 mm椭圆形无回声包块,拟诊双附件区囊块”。建议随访。2005 年4 月8 日,再次到内江市第一人民医院B 超检查,提示“子宫正常大小,子宫右后方见52 mm ×41 mm×30 mm 囊性包块,形态不规则,边界欠清楚;左附件区见31 mm×22 mm ×19 mm 囊性包块,边界清楚,包膜完整”。建议随访。
球墨铸铁管件在小口径灰口铸铁给水管道维修中的应用

利用球墨铸铁承盘短管和双盘短管来修复灰口铸铁供水管道发生的故障,速度快、质量保证率高,特别符合管道抢修中快速供水的要求.介绍了操作时的注意事项.
Li+ extraction/insertion reaction with Mg_2Mn_(0.5)Ti_(0.5)O_4 inverse spinel in the aqueous phase

An inverse spinel-type metal oxide, magnesium-manganese-titanium oxide (Mg_2Mn_(0.5)Ti_(0.5)O_4), were prepared using the coprecipitation/thermal crystallization method. The extraction/insertion reaction with this material was investigated by X-ray, saturation capacity of exchange, pH titration, and distribution coefficient (Kd) measurement The acid treatments of Mg_2Mn_(0.5)Ti_(0.5)O_4 caused Mg~(2+) extractions of more than 81%, whereas the dissolutions of Mn_4~+ and Ti4+ were less than 10%. The experimental results proved that the acid-treated sample has a capacity of exchange 56 mg·g~(-1) for Li+ in the solution. The chemical analysis showed that the Li+ extraction/insertion progressed mainly by ion-exchange mechanism and surface adsorption.
A comparative study of the properties of TiN films deposited by MAIP and FCAP

In this study two types of TiN films were prepared, one using the filtered cathodic arc plasma (FC AP) technique with an in-plane "S" filier, and the other using the multi-arc ion-plating (MAIP), and both deposited under the same parameters. Comparisons of the texture, hardness, roughness, tribological and electrochemical corrosion behaviors of the two types of TiN films were given. The TiN films obtained by the FCAP technology were found to be highly uniform, smooth and macroparticle-free. The TiN films deposited by FCAP had a (111) preferred orientation, while there was no texture in the films deposited by MAIP. Under low load the two kinds of TiN coatings had very different wear mechanisms; the films of FCAP had a lower wear rate and friction coefficient compared with the TiN films deposited by the MAIP technique. The dense and hole-free structure of TiN films of FCAP could effectively avoid the avalanche of TiN films from the substrate during corrosion tests.
Application of Wenner Configuration to Estimate Soil Water Content in Pine Plantations on Sandy Land

To estimate the mean value of surface soil water content rapidly,accurately,and nonintrusively,field investigations on soil electrical resistivity(SER)with the Yokogawa 324400 earth resistivity meter and the surface(0-150 cm)soil water content(SWC)with time domain reflectometry(TDR),together with the abiotic factors including soil texture,structure. and salinity concentrations were conducted in the Mongolian pine(Pinus sylvestris var.mongolica)plantations on a sandy land.The measurement of SER was based on the 4-probe Wenner configuration method.Relationships between the values of SWC and SER were obtained based on analysis of the abiotic factors of the research site,which play a key role in affecting the soil electrical resistivity.Results indicate that the SER meter could be used to estimate the mean value of SWC in the Mongolian pine plantations on the sandy land during the growing seasons.The bulky nature of the equipment simplified the cumbersome measurements of soil water content with the general methods.It must be noted that the Wenner configuration method could only provide the mean values of the SWC,and the soil texture,structure, temperature,and solute concentrations influenced the SER and further affected the estimation of the SWC by the SER meter.Therefore,the results of this study could be applied on a sandy land during the growing seasons only.However, the SWC of other soil types also may be obtained according to the individual soil types using the procedures of this study.
Properties and microstructure of VC/Cr_3C_2-doped WC/Co cemented carbides

This paper deals with the effects of codoped VC/Cr3C2 and sintering temperature on the magnetic and mechanical properties of ultra-fine grained WC-12%Co alloys. Results show that the synergistic action of doped VC/Cr3C2 in optimal proportion enhances both the hardness and transverse rupture strength (TRS) of the alloys, with more homogeneous microstructure. When the alloy is sintered at 1430℃ and with 0.5% Cr3C2/0.2% VC, the TRS reaches 3786 MPa, the hardness is 91.7 HRA and the grain size srnaller than 0.6 μm. The numerical analyses on grain growth during the sintering process show that both VC precipitating on the WC grain boundary and Cr3C2 dissolving in the Co phase decrease the solid/liquid interfacial energy γ, the process of dissolution and reprecipitation is greatly retarded and the coarsening of WC grains is inhibited.
Soil Microbial Population in the Vicinity of the Bean Caper(Zygophyllum dumosum) Root Zone in a Desert System

The aim of the current study was to gain a better understanding of the changes in soil microbial biomass and basal respiration dynamics in the vicinity of the bean caper(Zygophyllum dumosum)perennial desert shrub and the inter-shrub sites.Microbial biomasses as well as basal respiration were found to be significantly greater in the soil samples taken beneath the Z.dumosum shrubs than from the inter-shrub sampling sites,with no differences between the two sampling layers(0-10 and 10-20 cm)throughout the study period.However,seasonal changes were observed due to autumn dew formation,which significantly affected microbial biomass and basal respiration in the upper-layer inter-shrub locations. The calculated metabolic coefficient(qCO_2)revealed significant differences between the two sampling sites as well as between the two soil layers,elucidating the abiotic effect between the sites throughout the study period.The substrate availability index was found to significantly demonstrate the differences between the two sites,elucidating the significant contribution of Z.dumosum in food source availability and in moderating harsh abiotic components.The importance of basal microbial parameters and the derived indices as tools demonstrated the importance and need for basic knowledge in understanding plant-soil interactions determined by an unpredictable and harsh desert environment.
sphorus in Interstitial Water Induced by Redox Potential in Sediment of Dianchi Lake, China

On-farm experiments were conducted in farmers' fields at 6 different sites in Western Usambara Mountains(WUM)in northern Tanzania during the 2000-2001 cropping season.The objectives were to study the effects of Tughutu(Vernonia subligera O.Hoffn)pruning in combination with Minjingu phosphate rock(MPR)or triple super phosphate(TSP)supply on the concentration of P in the tissues and seed yields of common bean,and to assess the economic returns of these different technologies to farmers.The experimental design was a randomized complete block with each of the 6 farmers' fields used as a replicate.The treatments included:control,MPR or TSP each at 26 kg P ha~(-1),Tughutu at 2.5 t ha~(-1), and Tughutu at 2.5 t ha~(-1)combined with MPR or TSP at 26 kg P ha~(-1). Addition of MPR or TSP alone significantly raised P concentration in bean shoots from 1.27 mg g~(-1)to 1.70 and 1.95 mg g~(-1)respectively.Combining MPR or TSP with Tughutu increased P concentration above the proposed deficiency level of 2 mg g~(-1).The relative agronomic effectiveness(RAE)of MPR ranged from 12.5% to 45.0%.Seed yields of common bean was markedly increased by 28%-104% from MPR or TSP supply alone,and 148%-219% from Tughutu application combined with 26 kg P ha~(-1)of MPR or TSP relative to the control.With Tughutu alone,seed yield increased by 53%. From economic analysis,the increase in seed yield with the supply of MPR or TSP combined with Tughutu translated into a significantly(P≤0.001)higher marginal rate of return and dollar profit for common bean farmers in WUM in northern Tanzania.It is concluded that Tughutu and its combined application with MPR or TSP is an appropriate integrated nutrient management strategy that may increase bean yields and dollar profit to the rural poor communities in Tanzania.
Groundwater Contamination with NO_3-N in a Wheat-Corn Cropping System in the North China Plain

The North China Plain,where summer corn(Zea mays L.)and winter wheat(Triticum aestivum L.)are the major crops grown,is a major agricultural area in China.Permeable soils make the region susceptible to groundwater pollution by NO_3-N,which is applied to fields in large amounts of more than 400 kg NO_3-N ha~(-1)as fertilizer.A field experiment was established in 2002 to examine the relationship among N fertilization rate,soil NO_3-N,and NO_3-N groundwater contamination.Two adjacent fields were fertilized with local farmers' N fertilization rate(LN)and double the normal application rate(HN),respectively,and managed under otherwise identical conditions.The fields were under a traditional summer corn/winter wheat rotation.Over a 22-month period,we monitored NO_3-N concentrations in both bulk soil and soil pore water in 20-40 cm increments up to 180 cm depth.We also monitored NO_3-N concentrations in groundwater and the depth of the groundwater table.No significant differences in soil NO_3-N were observed between the LN and HN treatment.We identified NO_3-N plumes moving downward through the soil profile.The HN treatment resulted in significantly higher groundwater NO_3-N,relative to the LN treatment,with groundwater NO_3-N consistently exceeding the maximum safe level of 10 mg L~(-1),but groundwater NO_3-N above the maximum safe level was also observed in the LN treatment after heavy rain.Heavy rain in June,July,and August 2003 caused increased NO_3-N leaching through the soil and elevated NO_3-N concentrations in the groundwater.Concurrent rise of the groundwater table into NO_3-N- rich soil layers also contributed to the increased NO_3-N concentrations in the groundwater.Our results indicate that under conditions of average rainfall,soil NO_3-N was accumulated in the soil profile.The subsequent significantly higher- than-average rainfalls continuously flushed the soil NO_3-N into deeper layers and raised the groundwater table,which caused continuous groundwater contamination with NO_3-N.The results suggest that under common farming practices in the North China Plain,groundwater contamination with NO_3-N was likely,especially during heavy rainfalls,and the degree of groundwater contamination appeared to be proportional to the N application rates.Decreasing fertilization rates, splitting fertilizer inputs,and optimizing irrigation scheduling had potential to reduce groundwater NO_3-N contamination.
Quantifying Land Use Change in Zhejiang Coastal Region, China Using Multi-Temporal Landsat TM/ETM+ Images

Landsat Thematic Mapper(TM)and Enhanced Thematic Mapper Plus(ETM+)images in 1985,1986,1993,1994 and 2001 were used to quantify the land use and land cover changes(LUCC)in the Zhejiang coastal region with a stratified unsupervised classification technique in conjunction with visual interpretation and to attempt an identification of the socioeconomic driving forces.In level I an overall accurate classification was achieved using a modified Anderson'sⅠ/Ⅱ/Ⅲ-level classification scheme.The overall accuracy of the land use classification at Anderson level I were 89.7% (1985),91.6%(1993),and 90.4%(2001).The most rapid land use change was a dramatic increase in urban or built-up areas,which quadrupled from 1985 to 2001.Over 90% of this newly expanded built-up area was originally paddy fields or other croplands.In different parts of the Zhejiang coastal region,urban land expansion was spatially uneven.Temporally, land use development did not stabilized,and the two study periods of time(1985-1993 and 1993-2001)had different transition styles.Socioeconomic factors,such as gross domestic product,total population,and financial expenditure,were all highly correlated with the expansion of urban or built-up areas.Based on the degree of urban sprawl and socioeconomic factors,cities and towns were further divided into six subgroups,which may help decision makers improve land use for the region.
Storage, Patterns and Controls of Soil Nitrogen in China

Soil holds the largest nitrogen(N)pool in terrestrial ecosystems,but estimates of soil N stock remain controversial. Storage and spatial distribution of soil N in China were estimated and the relationships between soil N density and environmental factors were explored using data from China's Second National Soil Survey and field investigation in northwest China and the Tibetan Plateau.China's soil N storage at a depth of one meter was estimated at 7.4 Pg,with an average density of 0.84 kg m~(-2).Soil N density appeared to be high in southwest and northeast China and low in the middle areas of the country.Soil N density increased from the arid to semi-arid zone in northern China,and decreased from cold-temperate to tropical zone in the eastern part of the country.An analysis of general linear model suggested that climate and vegetation determined the spatial pattern of soil N density for natural vegetation,which explained 75.4% of the total variance.
Atrazine Adsorption Behavior on a Fluvo-Aquic Soil as Influenced by Contact Periods

A batch experiment was performed to investigate nonequilibrium adsorption behavior of atrazine(2-chioro-4-ethylami- no-6-isopropylamino-1,3,5-triazine)on a fluvo-aquic soil.The amount of atrazine sorbed increased with increasing adsorp- tion contact periods.For a range of initial atrazine concentrations,the percentage of atrazine sorbed within 24 h ranged from 24% to 77% of the observed total amount sorbed for the longest contact period;when adsorption contact periods were more than 72h,the deviations in curves fitted using a nonlinear Freundlich equation gradually became less.The op- posite trend was observed for the atrazine concentrations in solution.The effect of adsorption contact periods on atrazine adsorption behavior was evaluated by interpreting the temporal variations in linear and nonlinear Freundlich equation parameters obtained from the phase-distribution relationships.As the adsorption contact period increased,the nonlinear Freundlich capacity coefficient k_f showed a significant linear increase(r~2=0.9063,P<0.001).However,a significant negative linear correlation was observed for the nonlinear coefficient n,a dimensionless parameter(r~2=0.5666,P<0.05). Furthermore,the linear distribution coefficient k_d ranged from 0.38 to 1.44 and exhibited a significant linear correlation to the adsorption contact period(r~2=0.72,P<0.01).The parameters k_f and n obtained from a time-dependent isotherm rather than the distribution coefficient k_d estimated using the linear Freundlich equation were more appropriate to predict the herbicide residue in the field and thus more meaningful for environmental assessment.
Excitation of Annual Polar Motion by the Pacific, Atlantic and Indian Oceans

The global oceans play important roles in exciting the annual polar motion besides the atmosphere. However, it is still unclear about how large the regional oceans contribute to the annual polar motion. We investigate systemically the contributions of the Pacific, Atlantic and Indian Oceans to the excitation of the annual polar motion, based on the output data of ocean current velocity field and ocean bottom pressure field from "Estimating the Circulation and Climate of the Ocean (ECCO)" ocean circulation model over the period 1993-2005. The result shows that due to its particular location and shape, the Atlantic Ocean makes a less significant contribution to the x-component of the annual polar motion excitation than the Pacific and Indian Oceans, while all these three oceans contribute to the y-component of the annual polar motion excitation to some exte.
Investigation of operational parameters for an industrial CFB combustor of coal, biomass and sludge

The combustion of coal and/or biomass (sludge, wood waste, RDF, etc.) in a circulating fluidized bed has been a commercial topper for over 20 years, and references to principles and applications are numerous and widespread although few data are presented concerning the operation of large scale CFB-units. The authors studied the CFB-combustion at UPM-Kymmene (Ayr), a major paper mill relying for its steam production upon the combustion of coal (80-85%), wood bark (5-10%) and wastewater treatment sludge (5-10%). The maximum capacity of the CFB is 58 MWth.A complete diagnostic of the operation was made, and additional tests were performed to assess the operating mode. The plant schematics,relevant dimensions and process data are given. To assess the operation of the UPM-CFB, it is important to review essential design parameters and principles of CFB combustors, which will be discussed in detail to include required data, heat balance and flowrates, operating versus transport velocity, kinetics and conversion (including the possible effect of the Bouduard reaction if carbon is present).Since the residence time in the riser and the cyclone efficiency determine the burnout of circulating fuel-particles, the UPM-CFB was subjected to a stimulus response technique using nickel oxide as tracer. Results illustrate the efficiency of the cyclone separation and the number of recycle loops for particles of a given size. Results will also be used to assess the cyclone operation and efficiency and to comment upon expected and measured carbon conversion.
绿色供应链节点企业信任行为分析

节点企业之间的合作是绿色供应链顺利运行的基础,而信任是节点企业合作的基础。通过介绍绿色供应链节点企业间信任的特点,分析节点企业之间不信任会产生的问题,提出了建立节点企业信任的策略选择。
欠发达地区构建农村和谐社会的路径选择

论述了中国共产党人与和谐社会,和谐农村与和谐中国的关系,提出了欠发达地区构建农村和谐社会的基本原则与总体思路,并从经济、政治、社会文化和生态建设等4个方面提出了构建和谐农村的具体路径。
商丘市15年酸雨状况分析

通过对1992～2006年747次降水观测资料分析表明,商丘市15年间出现了强酸性降水,酸雨出现频率为10.0%,酸雨量为1248.6mm,酸雨量占总降水量的11.8%。1992、2005和2006年酸雨污染较其他年严重。一年中9、11和12月酸雨污染严重,2、6和7月酸雨污染较轻。秋季和冬季酸雨污染大于春季和夏季。
论职业教育在农村劳动力转移中的作用及发展策略

如何适应市场经济的要求,进一步合理、有序地转移农村剩余劳动力是关系到我国农村经济发展和社会稳定的重要问题;分析了制约其转移的瓶颈因素,指出职业教育对农村剩余劳动力转移具有重要的推动作用,通过发展职业教育以提高劳动力整体素质是解决该问题的根本途径。
经济增长对耕地非农化的需求研究——以湖北省为例

以湖北省为例,在分析湖北省1996～2005年经济增长数据和耕地非农化面积的基础上,建立了湖北省经济增长对耕地非农化需求的计量经济模型,并预测了湖北省未来一定年限内的耕地非农化趋势;最后,基于粮食安全的角度考虑,划分出了湖北省经济增长与耕地非农化关系的4个阶段。
沼肥在农业生产中的应用

综述了厌氧发酵产物沼气、沼液、沼渣的利用效益,指出厌氧处理不但可以将各类有机废弃物作无害化处理,减轻或消除环境污染,而且可以得到清洁能源沼气和农业生产资料沼肥,收到良好的经济、社会和生态效益。
羟基喜树碱膀胱多点注射联合经尿道电切加灌注治疗腺性膀胱炎37例分析

目的观察羟基喜树碱膀胱多点注射联合经尿道电切加灌注治疗腺性膀胱炎的疗效。方法对我院2002年7月~2006年12月收治的37例腺性膀胱炎患者采用羟基喜树碱膀胱多点注射联合经尿道电切加灌注治疗,观察其疗效。结果随访7~42个月,平均（24±2）个月,其中治愈32例（治愈率86%）,好转5例。随访期间未发现癌变。结论羟基喜树碱膀胱多点注射联合经尿道电切加灌注治疗腺性膀胱炎疗效满意。
联合血液净化治疗急性硫化氢中毒两例

硫化氢（H2S）是一种毒性比较剧烈的窒息性气体，有学者报道H2S中毒占我国职业性急性中毒的第二位，仅次于一氧化碳中毒，张敏等分析1990—2003年全国重大H2S中毒事故病死率为9．3％-61．5％，平均46．0％，是威胁我国劳动者生命和健康安全的主要化学性病因之一。
先天缺失16个恒牙1例

患儿男，7岁，因缺牙就诊。为早产儿，出生时不足7个月。无外伤史及拔牙史，否认有家族史。查：患儿发育及营养状态基本正常，反应灵敏，智力正常，毛发和眉毛纤细，色浅、较稀蔬，指甲形态无异常。
新冠心苏合滴丸对垂体后叶素所致急性心肌缺血小鼠的保护作用

心绞痛是指由于冠状动脉供血不足、心肌急剧的暂时缺血缺氧所引起的临床综合征，是冠心病最主要和最常见的表现类型，其中冠状动脉痉挛是引起心绞痛的重要原因之一。有效防治心绞痛对于提高病人生活质量，防止病情进一步恶化及改善预后具有重要意义。因此，研究开发有效防治心绞痛的药物颇受重视。
《灵枢》辨证方法之探析

1 主张“司外揣内”的辨证方法 《灵枢》虽非一人之作，但对疾病的认识方法则是惊人的一致，均提倡辨病证要以表知里、“司外揣内”，从病之表象综合分析。所以，当时对医疗技术高明医生的要求是“善审尺者，不待于寸，善调脉者，不待于色。能参合而行之者，可以为上工”。
复方丹参滴丸抑制高脂喂养犬血小板过度活化

目的：试图研究复方丹参滴丸对高脂喂养造成的胰岛素抵抗狗模型血小板功能影响。方法：选24只比格犬，18只犬经高脂喂养6个月复制胰岛素抵抗模型，随后，其中6只给予阿司匹林（250mg／d），6只给予复方丹参滴丸（1000mg／d），继续喂养4个月。结果：高脂喂养6个月后，动物出现明显的代谢异常和胰岛素抵抗，同时出现血小板过度活化的表现复方丹参滴丸可显著降低血浆胆固醇水平，并表现出明显的抗氧化作用。阿司匹林和复方丹参滴丸都能抑制血小板的过度活化。与阿司匹林相比，复方丹参滴丸对血小板最大聚集率及血小板表面黏附分子表达的抑制作用更显薯。结论：复方丹参滴丸能有效抑制胰岛素抵抗犬血小板过度活化。
鼠疫疫苗的相关基础研究

1 鼠疫菌比较转录组学研究全基因组DNA芯片转录谱芯片在细菌转录调控网络的研究上存在着巨大的潜力，除了分析单个体外或体内条件转录谱获悉刺激元和调控元的信息外，更重要的是将多个条件的转录谱数据进行综合分析，结合生物信息学信息，推测全基因组范围内的转录调节包括操纵予和启动予结合位点的预测。
海军某部官兵就医满意度调查及影响因素分析

军队医疗保障制度改革在全军正式推行已数年，它对于优化配置和统筹利用各种卫生资源，提高医疗服务质量和保障水平，切实解决好过去医疗保障制度中存在的突出矛盾和问题发挥了重要作用。但改革中也存在不足之处，本文通过问卷调查对官兵就医满意度及其影响因素进行分析，以期发现我军医疗体制改革中存在的问题，为医疗体制改革进一步深化提供参考依据。
三例气管切开术后气管内肉芽组织增生的处置及预防

2000年至今我科收治了176例意识障碍合并气管切开的患者，其中3例出现了严重的气管内肉芽组织增生，现总结报告如下。临床资料：病例1，女性，39岁，因脑外伤后意识障碍2个月余入院。
临床输血病案文书记录质量调查

随着医疗法律法规和操作技术规范的完善，以及医院质量管理年活动的开展，病案文书质量作为医疗质量的一个重要环节，其重要性已备受关注。也是医疗质量检查的重要内容。本调查资料仅对临床输血过程环节的病历记录质量分析如下。
海洋生物碱的研究进展

概述2000年以来海洋生物碱在抗肿瘤、抗菌、抗病毒等方面的研究进展，着重介绍近几年国内外海洋生物尤其是海绵和微生物中新发现的海洋生物碱及其生物学功能。
医源性咽后脓肿

咽后脓肿是咽后间隙有脓液积聚，临床上较少见，约占我科住院患者的0．5％～2．0％（陶正德，1987），多见于3岁以下幼儿，占79．8％（胡雨德，1987）。94．89／5为急性型（周绪红，1997），大多由咽后间隙淋巴结感染、咽部外伤等引起。我科曾诊治1例由咽后壁封闭注射引起的成年人的医源性咽后脓肿，为引起重视，特予报道。
鼻前庭巨大神经鞘瘤1例

患者，女，82岁。因右鼻塞20年于2006年3月4日入我院。体检：体温36．1℃，脉搏63次／min，呼吸20次／min，血压160／85mmHg（1mmg-0．133kPa）。右鼻持续性鼻塞，左鼻腔通气良好。专科检查：右鼻前孔可见单个黄白色新生物，表面为皮肤覆盖，右鼻前孔已被撑大至1．8cm×2．0cm.
导航辅助鼻内镜下眶壁骨折复位术

眶壁骨折是眼科最常见的一种外伤，轻度眶壁骨折不伴复视不需手术，严重的颌面部外伤需眼科、耳鼻咽喉科及口腔科合作进行联合整复，单纯眶内侧壁及眶下壁骨折伴复视的患者既往需眼科行鼻外筛窦人路或睑缘下切口进行手术，但随着鼻内镜外科的发展单纯眶下壁及内侧壁骨折可在鼻内镜下完成。但因眶内侧壁骨折突到筛窦的组织有时只有一小部分，有时很难判断骨折部位.
成功救治急性肝功能衰竭肝移植术后急性胆管炎致多器官功能障碍综合征一例

患者男性，48岁，因“乙型肝炎病史10年，乏力、尿黄2个月，加重伴意识障碍1周”于2006年12月28日收入院。10年前体检时发现乙型肝炎表面抗原（HBsAg）阳性，当时肝功能正常，未予治疗。3年前检查乙型肝炎5项为HBsAg阳性，乙型肝炎E抗原（HBeAg）阳性，乙型肝炎核心抗体（HBcAb）阳性；乙型肝炎病毒（HBV）-DNA10^5 copies／ml；开始服用拉米夫定（贺普丁）治疗（100mg／d）。
纬向海陆热力差异的季节转换与东亚副热带季风环流

通过分析气候平均场上对流层中层温度的纬向偏差,其演变特征表明由春入夏高原东侧我国东部大陆的迅速增温及青藏高原的春季加热,东亚大陆和西太平洋纬向海陆热力差异的季节转换最早发生在副热带,且强度最强;与其相伴随的对流层低层冬季盛行偏北风转变为夏季偏南风,对流降水也同时出现.这可能标志着东亚副热带夏季风的建立.因此提出亚洲大陆（含青藏高原）与西太平洋之间的纬向热力差异在太阳辐射季节背景下所形成的季节循环可能是东亚副热带季风自身独立存在的推动力.
天广直流输电系统极Ⅰ电压异常波动原因及其影响分析

针对近期天广直流输电系统极Ⅰ直流线路电压出现的异常波动现象，根据天广直流控制策略、暂态录波图、交直流功率测量值等对导致电压异常波动的原因进行了分析，介绍了检修处理结果，并结合实例讨论了电压异常波动对直流输电系统稳定运行可能造成的影响。
近50a来中国北方沙区风沙气候演变与沙漠化响应

中国北方干旱、半干旱地区近50a以来风沙活动有显著的变化.20世纪60至70年代区域处于强烈的风沙活跃期,而自80年代至今则持续减弱,在绝大部分地区其输沙能力仅为60至70年代的20%～50%.沙丘活动指数的分析结果也表明,20世纪80年代以后,处于强烈风沙活动控制下的区域在不断向北向西退缩;在中东部部分地区,60和70年代有较强流沙活动的区域已演变为固定、半固定沙丘或者沙地.风沙活动的这一显著变化在沙漠化过程中有很好的响应：20世纪60年代至70年代中国北方沙漠化强烈发展主要与这一时期正处于风沙活跃期有关;而近20a以来沙漠化逆过程的发生则与风沙活动的大幅度减弱和春季降水量增加有密切联系.因此,尽管现代沙漠化的正逆过程或多或少受到人类活动的影响,其仍主要被气候变化所制约.
金纳米棒与肝素相互作用的表征及肝素的等离子共振光散射分析法

利用等离子共振光散射（PRLS）、等离子共振吸收、扫描电子显微镜和动态光散射技术研究了金纳米棒与肝素的相互作用.结果表明,在溶液中,金纳米棒呈分散状态,具有微弱的等离子共振光散射信号.但当其与肝素通过静电作用后发生明显的聚集,产生显著的增强PRLS信号,信号的增强程度与肝素浓度在一定范围内呈线性关系.据此建立了基于金纳米棒聚集测定微量肝素的等离子共振光散射分析法.在60mmol/L NaCl和pH5.33的Britton-Robinson（BR）缓冲溶液介质中,金纳米棒浓度为6.4×10^-5mol/L时,测得肝素的线性范围为0.02～0.70μg/mL,检出限为（3σ）8.0ng/mL.该方法成功应用于临床肝素钠注射液的测定.
辐射致DNA损伤中DNA浓度的影响

利用重离子^7Li和γ射线在同一剂量和不同浓度下对质粒DNA的水溶液和添加了甘露醇的溶液进行了辐照.凝胶电泳结果表明,随着DNA浓度的降低,经重离子^7Li和γ射线辐照后,DNA损伤越来越严重.当添加了自由基清除剂甘露醇后,重离子^7Li和γ射线辐照后的结果出现了很大的不同.γ射线辐照DNA后,DNA损伤很轻,只有开环形态出现轻微变化.重离子辐射后的结果表明在自由基被大部分清除的条件下,线性DNA依然存在且随着DNA浓度的降低而增加,进一步证明了在重离子辐照致DNA双链断裂中由于直接作用而诱发的DSB（double-strand break）是不能被清除的.对实验数据的计算与分析表明,当DNA浓度低于一定值（比如50ng/μL）后,重离子辐照过程中自由基的间接作用与电离的直接作用所造成的平均双链断裂损伤的比例是一定的,与DNA的浓度没有关系.随着浓度的增加,重离子辐照的直接作用在辐照损伤过程中所占的比重增加.还讨论了DNA浓度在重离子^7Li和γ射线辐照过程中对DNA损伤影响的可能成因,诸如重离子的径迹结构、反应几率和DNA构象变化等.
塔里木盆地塔中83井原油中检测出2-硫代金刚烷及其地质意义

硫酸盐热化学还原反应（TSR）会使原油中的含硫量增加,降低原油的质量,还会产生污染空气、对金属设备有腐蚀性的H2S气体;对油气勘探开发及安全生产带来诸多隐患,所以TSR被人们重视.鉴定硫化氢成因的方法很多,但是对于识别低含硫化氢的成因存在一定困难.2-硫代金刚烷的检测是有效方法之一,这是首次在塔中83井（含硫化氢的新井）和塔里木盆地原油中发现了2-硫代金刚烷.采用银盐色层法,将原油中含量很低的2-硫代金刚烷富集到用GC/MS和GC/MS/MS可检测出的水平.在鉴定2-硫代金刚烷时,采用GC/MS/MS测定资料与文献对比方法确定其化学结构,并采用MRM谱图对质谱图中主要碎片离子质量作了证实,以提高可信度.由于塔中83井原油中检测出2-硫代金刚烷,认为塔中地区天然气中的硫化氢属于TSR成因.
湄潭县“三杂”种子市场现状、存在问题及管理对策

贵州省湄潭县有耕地面积3．1万hm~2（其中水田约1．9万hm~2，旱地约1．2万hm~2），是典型的稻油两熟区，土壤类型多样，立体农业明显。以水稻、玉米、小麦为主要粮食作物，以油菜、烤烟、辣椒为主要经济作物。近年来，在有关部门对农业生产良种良法的大力推广下，全县粮食生产得到了很大提高，为全县人民致富打下了坚实的基础。[第一段]
“三高两低”油研系列品种高产栽培措施

通过油研品种高产栽培试验示范,对高产典型农户的栽培技术进行剖析,分析总结油研系列品种高产栽培技术的主要措施为：适时早播,培育壮苗;适时移栽,合理密植;适时管理,促进早发;科学使用激素微肥。
种子的采集

采集种子是种子保存的一个重要环节。种子的采集要经过周密的计划,仔细的调查,详细的安排,制定出切实可行的方案,再根据采集目的进行采集。采集时应根据需要使用不同的方法,既要能保质保量地完成任务,又要避免对目标植物生境的破坏,还要保护自己不受伤害。采集过程中对目标植物有关信息的记录很重要,不但能对现在的工作有用而且还为以后的研究提供有价值的资料。种子采集后要对种子及时进行相关的处理。