mlsa-iai-msu-lab/ru_sci_bench_zho_cite_reranking huggingface dataset:
Organochlorine pesticides in soils under different land usage in the Taihu Lake region, China

A field study was conducted in the Taihu Lake region, China in 2004 to reveal the organochlorine pesticide concentrations in soils after the ban of these substances in the year 1983. Thirteen organochlorine pesticides (OCPs) were analyzed in soils from paddy field, tree land and fallow land. Total organochlorine pesticide residues were higher in agricultural soils than in uncultivated fallow land soils. Among all the pesticides, ΣDDX (DDD, DDE and DDT) had the highest concentration for all the soil samples, ranging from 3.10 ng/g to 166.55 ng/g with a mean value of 57.04 ng/g and followed by ΣHCH, ranging from 0.73 ng/g to 60.97 ng/g with a mean value of 24.06 ng/g. Dieldrin, endrin, HCB and α-endosulfan were also found in soils with less than 15 ng/g. Ratios of p,p'-(DDD+DDE)/DDT in soils under three land usages were: paddy field ＞ tree land ＞ fallow land, indicating that land usage inlfuenced the degradation of DDT in soils. Ratios of p,p'-(DDD+DDE)/DDT ＞1, showing aged residues of DDTs in soils of the Taihu Lake region. The results were discussed with data from a former study that showed very low actual concentrations of HCH and DDT in soils in the Taihu Lake region, but according to the chemical half-lives and their concentrations in soils in 1980s, the concentration of DDT in soils seemed to be underestimated. In any case our data show that the ban on the use of HCH and DDT resulted in a tremendous reduction of these pesticide residues in soils, but there are still high amounts of pesticide residues in soils, which need more remediation processes.
Sediment-copper distributions in hyper-concentrated turbulent solid-liquid system

This study presents a special problem on vertical distribution for sediment and copper in hyper-concentrated turbulent solid-liquid system that is essentially different from the ordinary low-concentrated turbulent system. A resonance type turbulent simulation equipment is used for the experimental study in which a vertically uniform turbulent field of the mixture of loess and water is produced in a testing cylinder with a grille stirrer that moves up and down harmoniously with varying vibration frequencies. In order to compare the variations of the vertical profiles of sediment and copper in low- and hyper-concentrated solid-liquid system, different scenarios for input sediment content ranging from 5 to 8_0_0 kg/m~3 was considered in the experimental studies. It was found that solids copper content increases with input sediment content, S_0, and reaches its peak as S_0 goes to 1_0 kg/m~3 and then decreases rapidly with increasing input sediment content. Such a behavior is possibly resulted from the joint effect of the specific adsorption of copper on loess, precipitation of carbonate and hydroxide of copper due to high carbonate content in the loess and the so-called "paniculate concentration effect" due to the present of the sediment variation in water. The vertical sediment concentration distribution resulted from the uniform turbulence is generally uniform, but slight non-uniformity does occur as sediment concentration exceeds certain value. However, the vertical concentration distributions of soluble copper seem not to be affected much by the variation of sediment concentrations.
Oxidative stress and DNA damages induced by cadmium accumulation

Experimental evidence shows that cadmium (Cd) could induce oxidative stress and then causes DNA damage in animal cells, however, whether such effect exists in plants is still unclear. In the present study, Vicia faba plants was exposed to 5 and 10 mg/L Cd for 4 d to investigate the distribution of Cd in plant, the metal effects on the cell lipids, antioxidative enzymes and DNA damages in leaves. Cd induced an increase in Cd concentrations in plants. An enhanced level of lipid peroxidation in leaves and an enhanced concentration of H_2O_2 in root tissues suggested that Cd caused oxidative stress in Vicia faba. Compared with control, Cd-induced enhancement in superoxide dismutase activity was significant at 5 mg/L than at 10 mg/kg in leaves, by contrast, catalase and peroxidaseactivities were significantly suppressed by Cd addition. DNA damage was detected by neutral/neutral, alkaline/neutral and alkaline/alkaline Comet assay. Increased levels of DNA damages induced by Cd occurred with reference to oxidative stress in leaves, therefore, oxidative stress induced by Cd accumulation in plants contributed to DNA damages and was possibly an important mechanism of Cd-phytotoxicity in Vicia faba plants.
Carbonaceous aerosols in PM_(10) and pollution gases in winter in Beijing

An intensive observation of organic carbon (OC) and element carbon (EC) in PM10 and gaseous materials (SO2, CO, and O3,) was conducted continuously to assess the characteristics of wintertime carbonaceous aerosols in an urban area of Beijing, China. Results showed that the averaged total carbon (TC) and PM_(10) concentrations in observation period are 30.2±120.4 and 172.6±198.3 μ/m~3, respectively. Average OC concentration in nighttime (24.9±19.6 μ/m~3) was 40% higher than that in daytime (17.7±10.9 μ/m~3). Average EC concentrations in daytime (8.8±15.2 μ/m~3) was close to that in nighttime (8.9±15.1 μ/m~3). The OC/EC ratios in nighttime ranging from 2.4 to 2.7 are higher than that in daytime ranging from 1.9 to 2.0. The concentrations of OC, EC, PM10 were low with strong winds and high with weak winds. The OC and EC were well correlated with PM10, CO and SO_2, which implies they have similar sources. OC and EC were not well correlated with O_3. By considering variation of OC/EC ratios in daytime and night time, correlations between OC and O~3, and meteorological condition, we speculated that OC and EC in Beijing PM_10 were emitted as the primary particulate form. Emission of motor vehicle with low OC/EC ratio and coal combustion sources with high OC/EC ratio are probably the dominant sources for carbonaceous aerosols in Beijing in winter. A simple method was used to estimate the relative contribution of sources to carbonaceous aerosols in Beijing PM10. Motor vehicle source accounts for 80% and 68%, while coal combustion accounts for 20% and 32% in daytime and nighttime, respectively in Beijing. Averagely, the motor vehicle and coal combustion accounted for 74% and 26%, respectively, for carbonaceous aerosols during the observation period. It points to the motor vehicle is dominant emission for carbonaceous aerosols in Beijing PM10 in winter period, which should be paid attention to control high level of PM10 in Beijing effectively.
Enhanced photocataly tic activity of TiO_2 by surface fluorination in degradation of organic cationic compound

Experiments were carried out to investigate the influence of TiO_2 surface fluorination on the photodegradation of a representative organic cationic compound, Methylene Blue (MB). The electropositive MB shows poor adsorption on TiO_2 surface; its degradation performs a HO. radical-mediated mechanism. In the F-modified system, the kinetic reaction rate enlarged more than 2.5 fold that was attributed mainly to the accumulating adsorption of MB and the increased photogenerated hole available on the F-modified TiO_2 surface.
Assessment and mapping of environmental quality in agricultural soils of Zhejiang Province, China

Heavy metal concentrations in agricultural soils of Zhejiang Province were monitored to indicate the status of heavy metal contamination and assess environmental quality of agricultural soils. A total of 908 soil samples were collected from 38 counties in Zhejiang Province and eight heavy metal (Cd, Cr, Pb, Hg, Cu, Zn, Ni and As) concentrations had been evaluated in agricultural soil. It was found 775 samples were unpolluted and 133 samples were slightly polluted and more respectively, that is approximately 14.65% agricultural soil samples had the heavy metal concentration above the threshold level in this province by means of Nemerow's synthetical pollution index method according to the second grade of Standards for Soil Environmental Quality of China (GB15618-1995). Contamination of Cd was the highest, followed by Ni, As and Zn were lower correspondingly. Moreover, Inverse Distance Weighted (IDW) interpolation method was used to make an assessment map of soil environmental quality based on the Nemerow's pollution index and the soil environmental quality was categorized into five grades. Moreover, ten indices were calculated as input parameters for principal component analysis (PCA) and the principal components (PCs) were created to compare environmental quality of different soils and regions. The results revealed that environmental quality of tea soils was better than that of paddy soils, vegetable soils and fruit soils. This study indicated that GIS combined with multivariate statistical approaches proved to be effective and powerful tool in the mapping of soil contamination distribution and the assessment of soil environmental quality on provincial scale, which is beneficial to environmental protection and management decision-making by local government.
Effects of exogenous salicylic acid on growth and H_2O_2-metabolizing enzymes in rice seedlings under lead stress

Salicylic acid (SA) was an essential component of the plant resistance to pathogens and also plays an important role in mediating plant response to some abiotic stress. The possible effects of SA on the growth and H_2O_2-metabolizing enzymes in rice seedlings under lead stress were studied. When rice seedlings grown in nutrient solution containing Pb~(2+) (0,0.05,0.15,0.25 mmol/L) for 18 d, the plant biomass as well as the chlorophyll content of leaves decreased with increasing Pb concentration. The pre-treatment with SA (treated with 0.1 mmol/L SA for 48 h before Pb stress) partially protected seedlings from Pb toxicity. The chlorophyll contents were significant higher in leaves of Pb-exposed with SA pre-treatment seedlings than in Pb-exposed plants at the same Pb intensity. SA pre-treated alone could significantly increase the length of shoot and root of seedlings but the vigour difference was not marked under long-term exposure to Pb toxicity. SA pre-treated influence the H_2O_2 level in leaves of seedlings by up-regulating the activity of superoxide dismutase (SOD), repressing the activity of catalase (CAT) and ascorbate peroxidase (APX) depending on the concentrations of Pb~(2+) in the growth medium. The results supported the conclusion that SA played a positive role in rice seedlings against Pb toxicity.
凹槽稳焰的超音速燃烧室内混合和燃烧特性分析

超声速气流在燃烧室的驻留时间极短,要实现点火和稳定燃烧,必须采用强化混合和稳定火焰手段.因结构简单,强化混合和稳焰效果好,凹槽很早就已在超音速发动机实际中得到广泛应用,也有许多相关研究.
心内直视下射频消融术治疗心房纤颤的护理

总结238例心内直视下射频消融术治疗心房纤颤的护理经验.提出术后护理要点:维护心功能,应用胺碘酮的注意事项,心率、心律的监测,应用临时起搏器的护理要点以及服用抗凝药物的宣教,尤其对实行瓣膜成形或生物瓣置换未恢复窦性心律的患者,需继续服用抗凝药物,直至恢复窦性心律.本组病例平均随访(546±23)d.平均窦性心律维持率为83.3%,3例(1.3%)安装了永久起搏器,35例(15.4%)房颤复发.
儿童神经系统疾病的临床研究进展

神经科学与分子遗传学的快速发展,促进了小儿神经系统疾病的研究.国内核心期刊2006年发表了300余篇相关论文,涉及小儿神经系统各种主要疾病的临床及基础研究,例如癫(癎)或其他发作性疾病、脑性瘫痪、神经系统感染、神经精神心理发育障碍等.以下简要介绍小儿神经病学几个主要领域的有关临床诊疗进展.
LXI instrument development platform based on an open embedded operating system

This paper introduces the architecture and components of LXI instrument development platform based on an open embedded operating system, which is a modular and configurable platform. The platform is a total solution to develop LXI instrument modules and systems. On the other hand, it also supports other types of instrument development. This is a generic and efficient platform. At the end, this paper addresses the technical tends,challenges, and recommends solutions.
冠状动脉假性动脉瘤并发心肌桥近段斑块破裂1例

患者,男,65 岁。因反复胸闷、剑突下不适7 年余收入院。每逢季节变化即出现胸闷不适,剑突下明显,无胸痛、心悸及头晕,无放射痛,持续数分钟,夜间发作较频繁,给予丹参、硝酸酯类药物治疗,症状有所缓解。有高血压史10 年,服用硝苯地平缓释片治疗;有高三酰甘油血症病史;无陈旧性心肌梗死及冠心病家族史。体检:肝肾功能及电解质均正常;术前静息心电图示Ⅰ、aVL 、V3～6 T 波倒置。冠脉造影术前常规波立维、阿司匹林。造影示左主干正常;前降支多处管壁不规则,近段于第1 、2 对角支分叉处前降支狭窄40 %伴钙化,第1 对角支分叉处前降支见局限性瘤样龛影,前降支中远段心肌桥,收缩期管腔受压30 %～40 % ,舒张期受压减轻;回旋支中段狭窄30 %;右冠管壁稍不规则,近段未见狭窄,左室后支长病变,狭窄30 %～40 %。换用F7 JL4 指引导管,送入IVUS 检查(Bo ston Scien2tific ,40 MHz) ,示前降支中远段两处心肌桥,近端心肌桥的近段斑块破裂,第1 对角支分叉处前降支见粥样硬化病变,管壁有假性动脉瘤形成(图1A) 。直接置入Driver 310 mm ×18 mm 金属裸支架于病变局部,以1 41812 kPa ×15 s 扩张,复查造影示支架扩张满意,未见残余狭窄,第1 、2 对角支未受影响,支架外仍见造影剂充填龛影。复查IVUS 示支架贴壁满意,完全覆盖病变(图1B) 。术后继续服用波立维、阿司匹林及硝苯地平缓释片治疗。
主动脉夹层的影像学诊断

主动脉夹层是一种严重威胁人类生命的疾病，如果未给予及时治疗．36 ～72 的患者红发病后48 h内死亡 。根据调查，主动脉夹层的发病率为0．05／万～0．3／万，尽管发病率较低，但其后果往往十J分严重。许多患者于临床诊断或症状 现之前就已经发生猝死!。该病的好发年龄为i0岁以上．男女比例为2～3：l。多为急性起病．根据发病时间可分为急性期和慢性期，一般将起病2周以1人】者称为急性期，起病在2周以f 者称为慢性期。
先天性心脏病封堵术后残余漏再封堵的治疗

目的:探讨先天性心脏病(先心病)封堵术后残余漏患者于原封堵器内再封堵的可行性及疗效.方法:2002～2005年行介入封堵的431例先心病患者中,术后发生大量残余漏的共3例,其中房间隔缺损(ASD)1例,动脉导管未闭(PDA)2例,均为女性,该3例患者使用的均为早期产的国产封堵器,第1次介入封堵术均成功;术后2年封堵器内有大量残余漏.3例全部再次用国产封堵器封堵的方法处理残余漏.结果:3例均于原封堵器内再置入1枚国产封堵器,成功封堵残余漏.随访6个月～1年,再无残余分流.结论:先心病PDA、ASD介入封堵术后封堵器内大量残余漏患者,采用原封堵器内再封堵这种残余漏处理方法是可行、有效的.
企业商业智能系统评估研究

由于商业智能投资的巨大和效益的不确定性，因此，从商业智能应用的立项到整个生命周期都进行持续评估十分重要。分析了商业智能系统的特点，阐述了商业智能评估的重要性，构建了一种商业智能系统的评估体系，并对评估的时机进行了探讨。
Aerenchyma Formed Under Phosphorus Deficiency Contributes to the Reduced Root Hydraulic Conductivity in Maize Roots

Root hydraulic conductivity has been shown to decrease under phosphorus (P) deficiency. This study investigated how the formation of aerenchyma is related to this change. Root anatomy, as well as root hydraulic conductivity was studied in maize (Zea mays L.) roots under different phosphorus nutrition conditions. Plant roots under P stress showed enhanced degradation of cortical cells and the aerenchyma formation was associated with their reduced root hydraulic conductivity, supporting our hypothesis that air spaces that form in the cortex of phosphorusstressed roots impede the radial transport of water in a root cylinder. Further evidence came from the variation in aerenchyma formation due to genotypic differences. Five maize inbred lines with different porosity in their root cortex showed a significant negative correlation with their root hydraulic conductivity. Shoot relative water content was also found lower in P-deficient maize plants than that in P-sufficient ones when such treatment was prolonged enough, suggesting a limitation of water transport due to lowered root hydraulic conductivity of P-deficient piants.
Quantitative Trait Loci Mapping for Chlorophyll Fluorescence and Associated Traits in Wheat (Triticum aestivum)

Parameters of chlorophyll fluorescence kinetics (PCFKs) under drought stress condition are generally used to characterize instincts for dehydration tolerance in wheat (Triticum aestivum L.). Therefore, it is important to map quantitative trait loci (QTLs) for PCFKs in wheat genetic improvement for drought tolerance. A doubled haploid (DH)population with 150 lines, derived from a cross between two common wheat varieties, Hanxuan 10 and Lumai 14,was used to analyze the correlation between PCFKs and chlorophyll content (ChlC) and to map QTLs at the grainfilling stage under conditions of both rainfed (drought stress, DS) and well-watered (WW), respectively. QTLs for these traits were detected by QTLMapper version 1.0 based on the composite interval mapping method of the mixed-linear model. The results showed a very significant positive correlation between Fy, Fm, Fv/Fm and Fv/Fo.The correlation coefficients were generally higher under WW than under DS. Also, there was a significant or a highly significant positive correlation between Fv, Fm, Fv/Fm, Fv/Fo and ChlC. The correlation coefficients were higher in the DS group than the WW group. A total of 14 additive QTLs (nine QTLs detected under DS and five QTLs under WW)and 25 pairs of eplstatic QTLs (15 pairs detected under DS and 10 pairs under WW) for PCFKs were mapped on chromosomes 6A, 7A, 1B, 3B, 4D and 7D. The contributions of additive QTLs for PCFKs to phenotype variation were from 8.40% to 72.72%. Four additive QTLs (two QTLs detected under DS and WW apiece) controlling ChlC were mapped on chromosomes 1A, 5A and 7A. The contributions of these QTLs for ChlC to phenotype variation were from 7.27% to 11.68%. Several QTL clusters were detected on chromosomes 1B, 7A and 7D, but no shared chromosomal regions for them were identified under different water regimes, indicating that these QTLs performed different expression patterns under rainfed and well-watered conditions.
Carbon Monoxide: A Novel Antioxidant Against Oxidative Stress in Wheat Seedling Leaves

Carbon monoxide (CO), an endogenous signaling molecule in animals, also provides potent cytoprotective effects including attenuation of lung lipid peroxidation induced by oxidant in the mouse. Our recent work demonstrated that 0.01 μmol/L hematin (a CO donor) treatment of wheat plants alleviated salt-induced oxidative damage in seedling leaves. In this report, we further discovered that hematin pretreatment (≤ 0.1 μmol/L) could delay wheat leaf chlorophyli loss mediated by further treatment of H_2O_2 and paraquat, two reactive oxygen species (ROS) sources, in dose- and even time-dependent manners. Also, compared with the control samples, seedling leaves pretreated with 0.01 or 0.1 μmol/L hematin for 24 h exhibited lower levels of H_2O_2 and lipid peroxidation, as well as higher contents of chlorophyll and activities of antioxidant enzymes. Such beneficial effects exerted by hematin were mimicked by the pretreatment of antioxidant butylated hydroxytoluene (BHT), and differentially reversed when CO scavenger hemoglobin (Hb), or CO specific synthetic inhibitor ZnPPIX was added, respectively. Taken together, the results presented in this paper directly illustrate for the first time that CO is able to strongly protect plants from oxidative damage caused by the overproduction of ROS, and strengthens the evidence that CO is a potent antioxidant in various abiotic and biotic stresses, as similar results have been shown in animal tissues.
刨花板滚筒式干燥机翻料板的理论探讨及应用

在刨花板生产过程中,刨花干燥是一个很重要的生产环节,其中滚筒式干燥机由于其热效率高,生产能力大,可连续操作;结构简单;操作方便;故障少,维修费用低;适用范围广,可用于那些附着性大的物料;操作弹性大,生产上允许产品的产量有较大的波动范围,不致影响产品质量;清扫容易等特点,比较适合于刨花板生产中的刨花干燥。滚筒式干燥机的效率与刨花在干燥机内的状况有很大的关系,而刨花在干燥机横截面上的分布又与翻料板的形状与布置有很大的关系,应该使刨花在横截面上的分布尽量均匀。
惠州市农业土壤中有机氯农药的残留

有机氯农药(OCPs)在环境中的强持留性以及人们在使用上存在较大的随意性和无序性,使许多农业土壤中至今仍有大量残留.本文以多成分有机氯农药作为调查对象,在地处珠江三角洲东北端的广东省惠州市选择了51个土壤样品,测定了其所含17种有机氯农药的残留量,以期了解惠州地区农业土壤有机氯农药的污染现状,为保障农业生产安全提供科学依据.
基于机器视觉的花生大小检验

获取大小不一的花生图像,调整图像大小,并进行二值化处理,求出图像中花生象素和,通过SPSS软件找出花生图像象素和A和大小S之间的数学关系,编制基于MATLAB的花生大小检测软件,通过自动求象素和从而求得花生的大小.
数字图像处理在棉花形态特征提取上的应用

介绍了数字图像处理分析面积和长度的基本原理、数字图像采集的方法和图像预处理内容,并从应用实例阐述了利用数字图像分析技术提取棉花外部形态特征的可行性,指出其广阔的应用前景.
抑郁障碍与疼痛

抑郁与疼痛之间的关系是当前的研究热点。临床现象显示，躯体疼痛与抑郁时的情感痛苦常相互交织并相互作用。根据世界卫生组织（1979年）和国际疼痛研究协会（1986年）的定义，疼痛是组织损伤或潜在组织损伤所引起的不愉快感觉和情感体验。2002年第10届国际疼痛大会达成共识：疼痛是继血压、体温、呼吸、脉搏后的第五大生命体征。近年来，越来越多的文献报道了抑郁与疼痛症状之间的相互作用，有作者称这种相互作用为“抑郁-疼痛综合征（depression-painsyndrome）”或“抑郁-疼痛二联体（depression-paindyad）”。
昆虫病原线虫防治稻水象甲成虫的室内测定

稻水象甲(Lissorhoptrus oryzophilusKuschel)是世界性的检疫性害虫,主要以幼虫在稻根隐蔽为害,是较难防治的害虫之一。该虫具有营孤雌生殖、潜水性强、越冬成虫死亡率低、成虫多食性等特性,有利于其扩散和传播。目前,稻水象甲的防治主要以化学防治为主。在生物防治方面,国内外主要在球孢白僵菌(Beauveria bassiana)和绿僵菌(Metarhizium anisopliae)对稻水象甲的致病力及田间致病力等方面进行了研究。昆虫病原线虫寄主范围广泛,对害虫种群有极大的抑制作用。
补充营养对斑痣悬茧蜂寿命和取食行为的影响

大多数寄生蜂成虫以碳水化合物作为其能量来源,在自然界中主要有三种形式。第一种是可以直接取食的营养,如花蜜、花粉、种子、藻丝及真菌孢子,另有少数为富含碳水化合物的植物渗出物。Sisterton和Averill观察到富氏愈腹茧蜂(Phanerotoma franklini)用口器取食蔓越橘叶片表面的渗出物;大量田间观察表明,寄生蜂访问不同的植物以满足其对碳水化合物的需求;相对而言,寄生蜂对花粉的直接取食较少。
An Explicit Solution for Thermal Calculation and Synthesis of Superstructure Heat Exchanger Networks

For the optimal design of a heat exchanger network,the inlet and outlet stream temperatures of each heat exchanger in the network should be known.An explicit analytical solution of stream temperatures of an arbitrary connected heat exchanger network was introduced,which is suitable for the thermal calculation of heat exchanger networks.For the heat exchanger network synthesis,this solution was further developed and coupled with the stage-wise superstructure heat exchanger networks.The new calculation procedure reduced the computer memory requirement dramatically.On the basis of this solution,a mathematical model for synthesis of heat exchanger networks with genetic algorithm was formulated,which is always feasible and no iteration is needed.Two examples were calculated with the proposed approach and better results were obtained.
头痛 头晕 心悸 消瘦

1 病例简介患者，女，61岁，因反复头痛，头晕10年，伴心悸，消瘦5年，门诊以高血压痛于2005-04-19收入院。10年来，患者无明显诱因反复出现头痛、头晕，严重时伴心悸、出汗。血压持续性升高伴阵发性加重，长期在外诊断高血压病，最高血压280／120mmHg（1mmHg=0．133kPa），口服伲福达、开搏通、倍他乐克等降压药，血压仍在200／95mmHg左右。5年前，因酮症酸中毒检查时发现忠糖尿病，后长期早、晚餐前皮下注射诺和灵30R，空腹血糖控制在6—8mmol／L，餐后2h血糖8～10mmol／L。既往体健。家族中无类似高血压和糖尿病病史。
关于中国草产业可持续发展总体战略的几个问题

草产业是一项富国强民的新兴产业，将是21世纪解决我国人口、资源、环境、边疆民族可持续发展问题的良策。当前草产业发展总体战略，宜着重抓好以下几方面工作。
农地城市流转微观特征分析——武汉市城郊区的问卷调查

协调经济发展和农地保护之间的矛盾需要对农地城市流转特征进行多角度的分析。本文利用武汉市城郊区被征地农户和村集体的样本调查数据，运用回归分析方法，对城郊区农地城市流转的微观特征进行了分析。研究发现：在微观地块因素中，单个流转地块的面积、农地流转后的用途和流转地块是否处于城市规划区内对农地城市流转面积的影响都极为显著；在影响农地城市流转的众多村级因素中，影响最显著的因素是村集体年度总收入和村集体获得的征地补偿额，其次是村集体所在区平均最低地价水平：经济利益方面的因素是村集体供给农地的动力．
胆舒胶囊治疗慢性胆囊炎25例临床观察

慢性胆囊炎是一种临床上较为常见的慢性炎症性胆囊疾病。本病多由胆汁瘀滞、细菌感染引起急性胆囊炎症反复发作迁延而来。近年来在临床上运用中医药在治疗慢性胆囊炎方面发挥了愈来愈重要的作用。胆舒胶囊便是由中药薄荷提取出的有效成分薄荷醇、薄荷酮研制而成，具有舒肝理气利胆的作用。笔者在临床运用胆舒胶囊治疗慢性胆囊炎25例，均取得满意疗效。现总结报告如下。
2006年7月26日安徽定远M4．2地震的震源机制

2006年7月26日，安徽省定远县发生M4．2地震，发震时刻为北京时间05点18分50秒；震中为32°32′N，117°37′E（图1），震源深度约10km（据江苏省地震台网测定）。震中区震感强烈，少数房屋出现裂缝，个别棚屋和少数烟囱倒塌。安徽的合肥、宿州、蚌埠、淮南、巢湖、淮北和江苏的南京、宿迁、扬州、淮安等部分地区有震感。
甲醛清除剂对病理组织影响的研究

甲醛分子式为CHCHO，主要作为一种防腐剂，杀菌剂在很多领域中使用。病理科所用的4%甲醛固定液给环境造成了污染，对人体健康造成危害。（1）甲醛是毒性化学物品，长期接触可以引起许多疾病，损害轻者可以引起眼、鼻、口腔咽部的刺激感，出现流泪.
颈部淀粉样瘤一例

患者女，39岁。因右颈部肿物6年于2006年1月入院，患者曾多次在外院就诊，穿刺诊断提示为结核，给予抗结核治疗，无明显疗效。体检：右锁骨上肿物为15cm×10cm.活动度尚可，质硬，边界清楚，无明显压痛。X线：右锁骨上可见软组织影，内见钙化灶。
差异表达蛋白质的分离鉴定及其应用

蛋白质组（proteome）的概念由Wilkins和Williams于1994年首先提出。它源于蛋白质（protein）与基因组（genome）两个词的组合，指一个基因组（genOME）或一个细胞、组织表达的所有蛋白质（PROTein）。蛋白质组学（proteomics）是以蛋白质组为研究对象，阐释所有蛋白质在不同时空的表达谱和功能谱，全景式地揭示生命活动的本质，特别是人体健康与疾病的机制。
非霍奇金淋巴瘤致重度溶血性贫血一例

患者男，53岁，因感冒后乏力、尿黄半个月，加重伴发热4d于2005年10月3日入院。既往高血压史2年。感冒后出现咽痛，应用青霉素1200万单位每日1次静脉输注，咽痛好转。体格检查：体温38．2℃，血压140／70mmHg，脉搏92次／min，呼吸18次／min，精神萎靡，皮肤巩膜黄染，左颈部扪及一枚1cm×1cm淋巴结，无触痛。睑结膜苍白，双肺呼吸音清，心率92次／min。血常规：血红蛋白（Hb）由125g／L迅速下降至86g／L，白细胞7．8×10~9／L，血小板215×10~9／L，并见红细胞有自身凝集现象。Coombs直接和间接试验C3和IgG阳性，血浆游离Hb 0．1065g／L。
中老年重度原发性脑室内血肿的神经内窥镜锁孔入路手术治疗

重度原发性脑室出血以中老年人高发,病情多呈快速进展性恶化,既往内科保守治疗和外科常规手术死亡率高,属于比较棘手的一类脑室出血.神经内窥镜锁孔手术具有创伤小、疗效确切、恢复快的优点,主要用于治疗脑室内疾病.本文旨在探讨中老年重度原发性脑室出血的特点以及神经内窥镜锁孔技术在其治疗中的应用.
不同年龄急性脑梗死患者血清超敏C反应蛋白检测的临床意义

超敏C反应蛋白(hs-CRP)是急性相蛋白,在感染、炎症或组织损伤时浓度迅速升高,它参与动脉粥样硬化(AS)及脑梗死的形成.hs-CRP浓度升高是缺血性卒中复发或死亡的危险因素,降低hs-CRP水平可减少缺血性卒中复发,改善预后.hs-CRP作为一种新的脑梗死的危险标志,通过检测其血浆基础水平可预测脑梗死的发生,但hs-CRP与患者年龄的关系目前尚未见有报道.本研究通过检测不同年龄及不同体积脑梗死患者血清hs-CRP水平,探讨脑梗死患者血清hs-CRP水平与年龄及梗死体积的关系.
动脉化静脉皮瓣修复手指软组织缺损

目的 探讨应用动脉化静脉皮瓣修复手指皮肤软组织缺损的方法及效果.方法 1999年10月～2006年8月,采用动脉化静脉皮瓣修复手指皮肤软组织缺损12例,男9例,女3例;年龄18～52岁.受伤原因:挤压伤8例,撕脱伤2例,锐器伤2例.均为手指软组织缺损,同时伴有骨、肌腱外露或合并血管断裂缺损,缺损范围为2.5 cm×1.0 cm～3.0 cm×2.5 cm.均采用同侧前臂、腕掌侧近端游离的动脉化静脉皮瓣修复.结果 术后2例远端1/4皮肤坏死,10例完全成活.患者全部获随访3～20个月,平均8个月.指肤色稍暗,皮肤质量接近正常,外观较丰满,感觉功能得到部分恢复.按中华医学会手功能评定标准评:优5指,良4指,中3指,差0指,优良率为75%.结论 应用动脉化静脉皮瓣是修复手指皮肤软组织缺损较好的一种方法.
急性心肌梗死心电图伪性改善2例

例1.男,69岁。患高血压病15年,反复心前区针刺样疼痛并向左肩背部放射7h,于2005年6月23日14:30入院。心电图示:V1,V2呈rS型,V3,V4呈RS型或Rs型,STV1~V3呈凹面向上形抬高0.30~0.45mV,T波高大直立,结合病史及临床表现,考虑为急性前间壁心肌梗死超急性期。
艾滋病并多发骨质破坏及病理性骨折1例

患者,男,52岁,因发热8d伴反应迟钝,精神淡漠7d,于2006年11月21日收入本院神经内科。患者11月11日晚出现咳嗽,13日开始发热,T38℃,伴精神差,不主动言语,行走不便。入院体查:T36.9℃,BP121/70mmHg,神志清楚,反应迟钝,表情淡漠,定向力、计算力、理解力差,颈项强直。双肺呼吸音清,未闻及干湿啰音,克氏征阳性,巴氏征阴性。
麻杏甘石汤治疗小儿感染性全身炎症反应综合征

目的观察口服医院自制麻杏甘石汤合剂治疗小儿感染性全身炎症反应综合征(SIRS)的临床疗效及对患儿血液中相关细胞因子TNF-α,IL-6,IL-1和C反应蛋白浓度的影响。方法将142例患病儿童分成观察组和对照组,观察组在常规治疗的基础上给予麻杏甘石汤口服给药治疗,对照组给予西医的常规治疗。结果SIRS患儿入院时血清TNF-α,IL-6,IL-1,CRP浓度显著升高,随着病情缓解,上述指标有不同程度下降,且经麻杏甘石汤治疗后下降更明显。结论麻杏甘石汤能改善SIRS患儿的预后,其主要机制可能是其对炎性因子有较好的拮抗作用。
广州市海珠区育龄妇女生殖健康状况调查

目的　调查广州市海珠区育龄妇女生殖健康状况。方法　对广州市海珠区15024例体检的育龄妇女进行问卷调查和妇检,包括常规妇科检查,子宫、附件B超检查,乳腺红外线检查,宫颈刮片,白带常规,线索细胞检查等;资料使用SPSS10.0处理。结果　15024例育龄妇女妇科病检出率为26.1%;常见的疾病为宫颈炎、盆腔炎和阴道炎。宫颈炎的发生率为36.1%,盆腔炎的发生率为18.1%,阴道炎的发生率为9.8%;25～34岁的育龄妇女宫颈炎的发生率最高(47.6%,P<0.05),差异有显著性;盆腔炎多见于25～45岁之间(P<0.05);服务行业和无业人员中阴道炎发病率最高,分别是741例(54.2%),1353例(34.9%);机关干部、专业人员中发现乳腺疾病的分别占18.9%,21.0%(P<0.01)。结论　目前对妇女生殖健康关心不够,应该广泛开展健康教育活动,提高妇女自我保健意识;加强生殖道感染的干预,对提高妇女生殖健康水平具有重要意义。
重组hEGF-TCS融合蛋白基因表达载体的构建及表达产物的纯化

目的　构建新型人表皮生长因子(human epidermal growth factor,hEGF)和天花粉蛋白(trichosanthin,TCS)融合蛋白的表达载体,在大肠杆菌中表达并纯化EGF-TCS融合蛋白。方法　利用基因工程技术将人表皮生长因子EGF和天花粉蛋白基因连接起来,克隆到高效表达载体pQE30中,构建重组表达质粒pQE30-EGF-TCS。并在大肠杆菌M15中表达该融合蛋白(EGF-TCS)。产物经Ni-NTA Agrose亲和层析柱纯化。结果　重组表达质粒pQE30-EGF-TCS在大肠杆菌M15中获得稳定、高效的融合表达。目的蛋白占细胞总蛋白的40%左右,以可溶性形式存在,表达上清柱纯化纯度达95%以上。结论　应用基因工程技术,成功构建了融合蛋白EGF-TCS,为进一步研究其结构功能关系和临床应用奠定了基础。