mlsa-iai-msu-lab/ru_sci_bench_zho_cite_reranking huggingface dataset:
AtCLH2, a Typical but Possibly Distinctive Chlorophyllase Gene in Arabidopsis

Chlorophyllase (EC 3.1.1.14) is involved in the first step of chlorophyll degradation. Isolation of chlorophyllase genes greatly facilitates characterization of chlorophyllase properties and elucidation of molecular regulation of their in vivo activities. There are two chlorophyllase genes, AtCLH1 and AtCLH2, in Arabidopsis thaliana. The in vivo roles of AtCLH1 have been reported previously. However, few studies have been carried out on AtCLH2. Here, we show that purified recombinant Chlase2, encoded by AtCLH2, exhibits in vitro chlorophyllase activity. Interestingly, "activation" of in vitro activity of the recombinant Chlase2 required higher concentrations of a detergent or a polar solvent. To determine its activity in vivo, the expression of AtCLH2 was inhibited by RNA interference. RNAi plants showed decreased contents of chlorophyllide without a substantial change in the total amount of the extractable chlorophyll and consequently presented lower chlorophyllide to chlorophyll ratios in their leaves. In addition, the two AtCLHs exhibited differential expression patterns. Our results suggest that AtCLH2 might play a distinctive role in chlorophyll catabolism in vivo.
Effects of Local Nitrogen Supply on Water Uptake of Bean Plants in a Split Root System

To study the effects of local nitrogen supply on water and nutrient absorption, French bean (Phaseolus vulgaris L.) plants were grown in a split root system. Five treatments supplied with different nitrogen forms were compared: homogeneous nitrate (NN) and homogenous ammonium (AA) supply, spatially separated supply of nitrate and ammonium (NA), half of the root system supplied with N-free nutrient solution, the other half with either nitrate (N0) or ammonium (A0). The results showed that 10 d after onset of treatments, root dry matter (DM) in the nitrate-supplied vessels treated with NA was more than two times higher than that in the ammonium-supplied vessels. Water uptake from the nitrate-supplied vessels treated with NA was 281% higher than under ammonium supply. In treatments N0 and A0, the local supply of N resulted in clearly higher root DM, and water uptake from the nitrate-supplied vessels was 82% higher than in the -N vessels. However, in A0 plants, water uptake from the -N nutrient solution was 129% higher than from the ammonium-supplied vessels. This indicates a compensatory effect, which resulted in almost identical rates of total water uptake of treatments AA and A0, which had comparable shoot DM and leaf area. Ammonium supply reduced potassium and magnesium absorption. Water uptake was positively correlated with N, Mg and K uptake.
Sap Flow of Populus euphratica in a Desert Riparian Forest in an Extreme Arid Region During the Growing Season

In the present study, the heat pulse technique was applied to investigate the stem sap flow of Populus euphratica in a desert riparian forest in an extreme arid region from April to October 2003 and from May to October 2004. The experimental sites were in Qidaoqiao (101°10' E, 41°59' N) and Bayantaolai farm (101°14' E, 42°01' N) in Ejina county, in the low reaches of the Heihe River, China. The results indicated that the diurnal change in the velocity of sap flow showed minor fluctuations. At night, the rising of sap flow could be observed in the main tree species because of root pressure. During the growing season, the maximum average velocity was observed in July, followed by August, and the same velocity was observed in September and May; the minimum velocity was observed in October. The transpiration from June to August during the growing season accounted for approximately 70% of the annual total transpiration. The sap flow velocity of P. euphratica trees of different ages could be arranged in the order: 15 yr > 25 yr > 50 yr. Sap flow velocity was closely related to changes in micrometeorological factors, with average sap flow velocity showing a significant linear correlation with net radiation, air temperature and relative humidity.
Proteomics Associated with Virulence Differentiation of Curvularia lunata in Maize in China

One-dimensional electrophoresis (1-DE) of proteins, two-dimensional electrophoresis (2-DE) of proteins and cloning of cDNA sequence were used to study the virulence differentiation of Curvularia lunata (Wakker) Boed. isolated from maize (Zea maydis L.) in China. From 1-DE gel profiles of proteins, 110 reproducible bands were separated from six isolates of C. lunata CX-3, SD-6, C-152, C107-1, DD-60 and W-18. Sixty-eight bands (61.82%) were polymorphic, suggesting huge biodiversities among the isolates. All isolates for the experiment were clustered into three groups consisting of different virulent types by coefficient value of 0.605. Group 1, consisting of CX-3, SD-6 and C-152 with high virulence displayed more protein bands than Groups 2 and 3, consisting of C107-1 and DD-60 with low virulence. Proteomics approaches based on 2-DE techniques were applied to identify specific proteins associated with the virulence differentiation in CX-3 and DD-60. A total of 423 protein spots were separated. Out of them 75 specific protein spots were displayed in 2-DE gels. Among them 28 protein spots were unique in CX-3 and eight in DD-60, and 39 protein spots were shown on both 2-DE gels but expressed differently in intensity. Twenty protein spots including three unique protein spots and 17 differentially expressed protein spots (more than two-fold DD-60) in CX-3 were further identified with MALDI-TOF MS/MS. Results indicated that most of the identified proteins were found to be associated with virulence differentiation, metabolisms, stress response and signal transduction. One of them was identified as Brn1 protein, which had been reported to be related to melanin biosynthesis and the virulence differentiation in fungi. Combined with our previous findings, we assumed that Brn1 protein and its regulating products might be involved in the virulence differentiation of C. lunata. Consequently, we cloned a Brn1 cDNA fragment and aligned it with the fragments in other fungi. Results indicated that the 633-bp sequence of Brn1 cloned in C. lunata was highly homological with the compared fungi. Further work for the exact gene roles of Brn1 in our case is underway.
Studies on Temporal and Spatial Variations of Phytoplankton in Lake Chaohu

Temporal and spatial variations of the phytoplankton assemblage in Lake Chaohu, a large shallow eutrophic lake in China, were studied from September 2002 to August 2003. A total of 191 phytoplankton species was identified, among which Chlorophytes (101) ranked the first, followed by Cyanophytes (46) and Bacillariophytes (28). On average over the entire lake, the maximum total algal biomass appeared in June (19.70 mg/L) with a minimum (5.05 mg/ L) in November. In terms of annual mean biomass, cyanobacteria contributed 45.43% to total algal biomass, followed by Chlorophytes (27.14%), and Bacillariophytes (20.6%). When nitrate (NO3-N) and ammonium (NH4-N) concentrations dropped in spring, fixing-nitrogen cyanobacterium (Anabaena) developed quickly and ranked the first in terms of biomass in summer. It is likely that dominance of zooplanktivorous fish and small crustacean zooplankton favored the development of the inedible filamentous or colony forming cyanobacteria. The persistent dominance of cyanobacteria throughout all seasons may indicate a new tendency of the response of phytoplankton to eutrophication in Lake Chaohu.
Room-Temperature Ferromagnetism in Zn_(1-x_Mn_xO Thin Films Deposited by Pulsed Laser Deposition

Zn_(1-x)Mn_xO (x = 0.01–0.1) thin films with a Curie temperature above 300 K are deposited on Al_2O_3 (0001) substrates by pulsed laser deposition. X-ray diffraction (XRD), ultraviolet (UV)-visible transmission and Raman spectroscopy are employed to characterize the microstructural properties of these films. Room temperature ferromagnetism is observed by superconducting quantum interference device (SQUID). The results indicate that Mn doping introduces the incorporation of Mn~(2+) ions into the ZnO host matrix and the insertion of Mn~(2+) ions increases the lattice defects, which is correlated with the ferromagnetism of the obtained films. The doping concentration is also proven to be a crucial factor for obtaining highly ferromagnetic Zn_(1-x)Mn_xO films.
Fano Resonance in Landau Fermi and Luttinger Liquids

With a two-channel model, we study the influence of temperature, external voltage and magnetic flux on the line shape of the Fano resonance, and show that in the Luttinger liquid case, the background transmittance and the asymmetric parameter depend strongly on the temperature and external voltage, while for the Landau Fermi liquid case they are nearly independent of these parameters in the low energy region. Moreover, we demonstrate that the asymmetric parameter changes periodically with an external magnetic flux, which is consistent with the recent experimental data.
Feasibility of Non-Collinear TeO_2 Acoustic-Optic Tunable Filters Used in the Optical Communication

The characteristics and the structure of TeO_2 acoustic-optic tunable filter used in communication are discussed briefly based on the acoustic-optic theory and it is shown that a large optical incident angle and a long interaction length are suitable for the optical add/drop multiplexer based on the TeO_2 acoustic-optic tunable filter. The distribution of acoustic energy flow in the device supports the large optical incident angle. The long interaction length depends on the change of the device structure to some degree. The measured results of the samples show that the diffraction efficiency reaches at 96% in the tuning range larger than 100 nm and the bandwidth is about 2 nm. It can be found that there is a good consistency with the basic theoretical mode. The optimized design result shows that the diffraction efficiency can arrive at 100%, and the bandwidth can be less than 0.4 nm. Thus, the non-collinear TeO_2 acoustic-optic tunable filter can play an important role in the coming general optical network.
Phonon Transmission and Thermal Conductance in Fibonacci Wire at Low Temperature

We investigate the phonon transmission and thermal conductance in a general Fibonacci quasicrystal by the model of lattice dynamics and the technique of transfer matrix. It is found that quasiperiodic distribution of masses may greatly destroy the phonon transport at both low and high frequencies and thus may affect the thermal conductance. The thermal conductance increases with temperature at low temperatures and displays saturation with further increase of the temperature. Such saturation behaviour is preserved even when the mass ratio of atoms in the Fibonacci chain is changed.
异氟醚或丙泊酚对罗库溴铵量效关系的影响

目的 比较异氟醚和丙泊酚对罗库溴铵量效关系的影响.方法 选择拟行择期手术全麻病人48例,随机分为丙泊酚组(n=24)和异氟醚组(n=24).异氟醚组麻醉维持吸入1个肺泡气最低有效浓度(MAC)的异氟醚,丙泊酚组泵入丙泊酚3～6 mg/(kg·h),利用单次剂量法测定罗库溴铵的半数有效量(ED50)和95%有效量(ED95).结果 丙泊酚组罗库溴铵ED50为152 μg/kg (95%CI 131～175 μg/kg),ED95为314 μg/kg(95%CI 286～373 μg/kg),高于异氟醚组[88 μg/kg(95%CI 72～104 μg/kg)和263 μg/kg (95%CI 228～283 μg/kg)],差异有统计学意义(P＜0.05).结论 成年人罗库溴铵的ED50、ED95值在异氟醚麻醉下比丙泊酚麻醉下明显降低,提示异氟醚能增强罗库溴铵的药效强度.
胆囊癌患者外周血与局部组织细胞免疫状态的变化及意义

目的 探讨胆囊癌及癌旁组织中局部细胞免疫功能与肿瘤的发生发展及病理改变之间的关系.方法 应用流式细胞术分别对38例胆囊癌患者癌瘤局部、癌旁组织及外周血的CD4~+、CD8~+、NK细胞的含量及T淋巴细胞亚群进行检测.结果 CD4~+、CD8~+及NK细胞计数在胆囊癌组织中含量最高,高于癌旁组织、胆囊癌患者外周血及结石性胆囊炎胆囊组织(P＜0.05),但癌组织的CD4~+/CD8~+比值低于癌旁组织及胆囊炎组织(P＜0.05);结石性胆囊炎胆囊组织及外周血中CD4~+、CD8~+、NK细胞计数和CD4~+/CD8~+比值与胆囊癌旁组织比较差异无统计学意义(P＞0.05),但外周血中上述指标均高于胆囊癌患者外周血(P＜0.05).结论 胆囊癌及癌旁组织粘膜固有层内存在着NK细胞及T淋巴细胞亚群的比例失调和异常分布,胆囊癌组织内虽然有CD4~+、CD8~+、NK细胞的较高表达,但免疫功能呈低下和抑制状态.
氧化抗氧化失衡与动脉粥样硬化

目的 探讨氧化抗氧化失衡与动脉粥样硬化的关系.方法 对采用高分辨超声检测技术筛选出的79例颈总动脉斑块形成患者(A组)、52例内膜中层增厚患者(B组)和36例内膜中层厚度正常患者(C组)进行静脉血浆还原型谷胱甘肽(GSH)与氧化型谷胱甘肽(GSSG)、还原型辅酶Ⅱ(NADPH)与氧化型辅酶Ⅱ(NADP+)、氧化型低密度脂蛋白(oxLDL)和丙二醛(MDA)检测.结果 A组与B组相比,B组与C组相比,GSH、GSH/GSSG减低 (P＜0.05) ,GSSG、GSH/GSSG氧化还原电位升高(P＜0.05);A组与C组相比,NADPH、NADH/NADP+减低(P＜0.05),NADPH/NADP+氧化还原电位升高(P＜0.05);A组与B组相比,B组与C组相比,oxLDL、MDA增加(P＜0.05);GSH/GSSG氧化还原电位与oxLDL呈正相关(r=0.817,P＜0.001),随着动脉内膜增厚斑块形成,氧化还原电位逐渐升高,向氧化方向偏移.结论 动脉粥样硬化与氧化还原态失衡向氧化方向偏移相关.
液流电池蓄电技术的进展与前景

电能是国民经济发展的重要保障。随着核电和风能、太阳能、潮汐能等可再生能源的规模开发、利用,为实现稳定供电,开发高效的规模储能技术意义非常重大。规模储能技术中首推扬水蓄能,它规模大、寿命长,但地理条件要求苛刻,且建造费用高。
单源化手术治疗法乐四联症合并肺动脉闭锁1例

目前，法乐四联症合并肺动脉闭锁(Tetralogy of Fallot and Pulmonary Atresia，TOF-PA)仍然是心脏外科医生面临的挑战之一，而主-肺动脉侧枝循环(Major Aortopulmonary Collaterals，MAPCSs) 是影响预后的重要因素.我们近期应用单源化手术完成1例TOF-PA合并MAPCSs患儿，效果满意。
哈尔滨太阳岛水域原生动物群落变化的初步研究

近年来，随着科学技术的发展与进步，环境污染问题逐渐引起全人类的密切关注。水体污染作为环境污染的一部分，已经成为许多国家和社会亟待解决的一个重大问题。原生动物是水生态系中的重要组成部分，它们作为捕食者（或初级消费者）和被捕食者在水体物质 循环和能量流动过程中发挥着十分重要的作用。原生动物是水生态系中的重要组成部分，它们作为捕食者（或初级消费者）和被捕食者在水体物质循环和能量流动过程中发挥着十分重要的作用。原生动物群落演变与湖泊富营养化进程关系密切，它们的种群动态和群落结构与功能的变化能够反映湖泊水体的状况及发展趋势。许多学者如王家辑、沈韫芬、许木启、徐润林、施心路等都曾利用原生动物来监测、评价水体。原生动物群落的物种种类和数量随着水体的污染程度变化而消长。因此，利用原生动物在水生生态系中发挥的作用，可以直接或间接地监测水体的污染状况及其水质的变化趋势，从而起到生物预警的作用。
莱葛颗粒与降压药联合治疗高血压肾病疗效观察

目的:用莱葛颗粒与降压药联合法治疗高血压肾病并对治疗效果进行分析.方法:选择高血压肾病患者61例,随机分为对照组和治疗组.对照组口服卡托普利和硝苯地平缓释片,治疗组在上述治疗的基础上加用莱葛颗粒冲剂.两组患者并用相应药物控制其他并发症.两组血压均要求控制在125/80 mHg以下,疗程均为3个月.结果:治疗后两组血压均较治疗前明显降低(P＜0.01),但两组间差异无统计学意义(P＞0.05).治疗组治疗后血Ua、TC、β-MG、BUN、Scr及24 h尿蛋白定量均较治疗前明显降低(P＜0.05或P＜0.01),Ccr较治疗前明显升高(P＜0.01),对照组治疗前后上述指标均无明显变化(P＞0.05),两组间比较,治疗前各项指标差异均无统计学意义.治疗后治疗组血TC、Scr及24 h尿蛋白明显降低于对照组(P＜0.05),而Ccr明显高于对照组(P＜0.05).结论:莱葛颗粒与卡托普利和硝苯地平缓释片联合应用对高血压所致肾脏损害具有保护作用,且不良反应轻微,耐受性好.
鼻内镜在鼻咽癌诊断中的应用体会

本科自2004年9月～2006年6月对耳鼻咽喉科就诊的1 300例疑似患者进行了鼻内镜下鼻咽部检查,对56例可疑病变进行鼻内镜下活检,确诊鼻咽癌36例.认为鼻内镜在鼻咽部疾病的检查及活检方面均有独到的优越性,对鼻咽癌的早发现早诊断具有重要的作用.现报告如下.
成功抢救低钾性昏迷1例

1病例介绍患者,女,75岁,主因血尿间段发作四十余年,夜间胸闷、憋气3 d于2006-09-05入院.高血压及冠心病病史十余年。糖尿病史十余年，近期皮下胰岛素注射液（预混30R，即诺和灵）空腹血糖控制在6-8mmol/L。
小脑扁桃体下疝畸形1例误诊分析

1病例介绍患者,女性,56岁,因跌倒后左侧肢体麻木伴活动障碍3 h于2006-06-26入住我科.患者及家属诉入院前3h无明显诱因突然跌倒，后枕部着地，继而出现意识丧失，持续约15min后意识转清，但自觉左侧肢体麻木、活动障碍，表现为左侧手脚不听使唤，定位不准确，伴有头痛（后枕部持续性胀痛）。
电机测功器的正算法

1 引言在电动机的输出功率测试中,通常用到电机测功器测功.电机测功器有专用力矩型和临时用发电机型.专用力矩型是将一台直流发电机悬空支撑,机壳下方悬吊一平衡锤,上方与平衡呈180的端盖上,固定一指针.
新型电机试验电源及加载设备

众所周知,在电机行业,电机型式试验的电源系统比较复杂,不仅要求被试电机的电源失真度要小于2%,而且还要求频率可变(例如50 Hz电机和60 Hz电机).在做电机的温升试验和负载试验时,需要对电机加载,耗电大.
免耕播种机弹齿式防堵装置

针对免耕播种机的堵塞问题,设计了免耕播种机弹齿式防堵装置,该装置利用弹齿的非线性变形对开沟器前的秸秆产生短时间压制,防止开沟器缠草,在秸秆覆盖量小于4 500kg/hm2、浮草较多条件下具有较好的通过性.
基于可见光图像的水稻植株含水率检测技术

含水率是重要的作物生长信息,利用水稻植株可见光图像颜色的差异检测水稻植株含水率.在大棚环境下,对盆栽的水稻进行定量有差别的供水,使植株的含水率形成差异.对水稻植株RGB彩色图像进行预处理后,提取了Re、Ge、Be、GR、GB、RB共6项颜色特征量,分析其与水稻含水率Rg之间的关系,并用SPSS进行曲线拟合.研究表明,6项颜色特征量与Rg的相关性均显著,其中,GR与Rg的相关性最好.
肌电图对肌强直综合征24例诊断分析

目的:探讨肌强直综合征的电生理变化与诊断间关系.方法:24例肌强直组和20例对照组患者的肌电图(EMG)、神经传导速度(NCV)进行检测对比.结果:肌强直组EMG主要特点呈典型肌强直电位发放,肌源性损害,NCV在正常范围.对照组出现肌强直电位较少且声响低平,瞬间即失.两组电静息状态下肌强直电位、插入电位延长、强直后放现象,经统计学处理差异有极显著性(P＜0.01).结论:EMG肌强直电位发放伴扬声器声响强而持续、插入电位延长、强直后放现象是区别其他神经肌病出现肌强直电位主要依椐.EMG出现肌强直电位的质与量是诊断肌强直综合征的关键.
肺心病合并严重低钠血症1例

患者,男,71岁,因反复咳嗽、咳痰、胸闷、气短14年加重伴发热3 d,于2006年5月15日入院.体查:体温38.5℃,脉搏105次/min,呼吸23次/min,血压115/85 mmHg,神志清楚,呼吸困难,口唇、指甲紫绀,颈软,颈静脉怒张(卧位).有肺气肿体征,剑突下见明显心尖搏动,心率105次/min,心律齐,无杂音,两肺满布哮鸣音,伴散在湿性啰音.
少汗症致间歇性发热3年误诊1例

患者,男,18岁,学生.因间歇性发热3年余于2005年9月23日入院.患者于3年前无明显诱因出现发热,以低热为主,最高体温38.4℃,发热时自觉心慌、咽喉灼热,无畏寒、寒战,无头痛、咳嗽、鼻塞、流涕,无腹痛、腹泻、尿频、尿急、尿痛,无皮疹、关节疼痛等,体温一般于夜间或气温降低时可自行降至正常;夏季及天气炎热时发作较多,冬季及天气凉爽时较少发作,患者自觉近年来口渴明显,喝水较多,皮肤较干燥,出汗少,既往有粟粒疹病史.
人工耳蜗植入手术配合体会

我院自2003年2月至2005年9月,采用澳大利亚Cochler公司产的Nucleus 24M及Nucleus24Contour(弯曲极)成功地为2例聋者进行了人工耳蜗植入术,手术效果满意.现将手术室护士的护理配合总结如下.
82例癫痫患者心理健康状况研究

目的 调查分析癫痫患者的心理状况.方法 使用90项症状自评量表(sCL-90),抑郁自评量表(SDS)和焦虑自评量表(SAS)对82例癫痫患者进行调查.结果 癫痫患者躯体化、强迫、焦虑、抑郁等几项SCL-90因子分显著高于国内常模(P＜O.05),82例癫痫患者中有5l例(62.20%)存在抑郁情绪,42例(51.22%)存在焦虑情绪.结论 癫痫患者存在一定程度的心理障碍,临床医生应该关注癫痫患者的心理健康咨询.
氢质子磁共振波谱对创伤性脑损伤的分析

目的 探讨氢质子磁共振波谱(1H magnetic resonance spectroscopy 1H MRS)分析对创伤性脑损伤(traumatic brain injury,TBI)受伤程度、预后预测的临床价值.方法 对30例TBI患者和10例正常志愿者进行1HMRS检查,观察不同程度TBI患者与正常对照组间N-乙酰天门冬氨酸(NAA)、胆碱(Cho)、肌酸(Cr)、乳酸(Lac)及NAA/Cr,NAA/Cho,Cho/Cr值的变化,分析这些指标与格拉斯哥昏迷评分(GCS)及格拉斯哥预后评分(GOS)的相关性.结果 TBI患者较正常对照组NAA/Cho,NAA/Cr值明显下降,而Cho/Cr值明显上升;出现Lac水平上升患者的GCS为重度,其预后不良,NAA/Cr,NAA/Cho,Cho/Cr值变化与TBI患者GCS,GOS存在相关性.结论 1H MRS对脑外伤的程度及预后预测有重要价值.
一种新的基于禁忌搜索的静态波长路由算法

基于禁忌搜素的基本原理,提出了一种新的静态波长路由智能算法,实现了路由、波长的同时分配.文中给出了算法的流程和实现的细节描述,并且利用常用的四种实际网络模型进行算法仿真.仿真结果表明新算法稳定、有效,能够在合理的时间之内得到比以往的一些算法更优的结果.
旋覆定喘汤治疗支气管哮喘急性发作期41例

支气管哮喘(BA)是由多种炎性细胞作用引起的气道慢性非特异性炎症,临床表现为反复发作的喘息、气促、胸闷或顽固性咳嗽等症状,常于夜间或清晨发作或加剧.
2005年中国植物科学若干领域的重要研究进展

2005年应该是我国植物科学研究进入飞跃发展的一年。据不完全统计，2005年中国本土植物生命科学领域的科学家在植物科学及其相关学科专业顶级学术刊物Plant Cell、Plant Journal、Plant Physiology、Proteomics和Bioinfomatics上发表的论文有46篇，较2004年的22篇增加了一倍。这反映了我国科研总体水平正在迅速提高，并受到国际同行的高度关注。本文基于我国科学家发表在上述主流刊物上的成果作一简单介绍。对我国在模式植物拟南芥研究方面的进展，读者可参阅许智宏院士全面的评述（Xu，2006）。由于篇幅有限和统计上的困难，我们相信这些介绍难于代表我国植物科研取得的全部成果，但是希望从一些侧面反映我国科学家在本土所做研究的主要进展，本文就不同研究领域举例介绍。
1 000 MW机组厂用电系统电压及接线选择

因国内目前尚无600 MW以上发电机厂用电系统电压及接线方面的技术规程,结合新建电厂工程设计要求,对1 000 MW发电机厂用电压、高压厂用变压器容量和数量等3种选择方案进行技术和经济分析,并提出了推荐方案.
提高IEC 60870-5-101协议互操作性的应用经验

IEC 60870-5-101已经被等同采用为行业标准DL/T 634.5101-2002,成为中国电力系统主流的远动通信协议.但目前对协议的实际应用还存在一些问题.文中结合协议的实现和工程应用中的大量经验,从通信过程、数据格式、时标准确性、冗余通道等几个方面,分析了影响互操作性的根本原因,并针对如何充分利用协议、高效可靠地完成数据通信提出了可行的解决方案.可以全面提升IEC 60870-5-101协议的应用水平.
高血压患者脉压对尿微量白蛋白的影响

目的 探讨高血压患者脉压变化对尿微量白蛋白(UmALB )排泌量的影响.方法 选取160例原发性高血压患者,根据脉压(PP)水平分成PP＜70 mm Hg组,77例和PP≥70 mm Hg组,83例,两组均行系统降压治疗1月,将血压达标(BP 140/90 mm Hg)者再继续治疗观察5月,分析这些患者治疗前后PP及UmALB 的变化,并进行比较.结果 PP＜70 mm Hg组治疗前后UmALB量无明显改变.PP≥70 mm Hg组治疗后有60例血压达标,该组总的UmALB分泌量减少,其中治疗后PP＜70 mm Hg病例比治疗后PP≥70 mm Hg病例的UmALB分泌量明显减少(P＜0.05).结论 高血压患者随着脉压变化可引起UmALB 排泌量的变化,PP从≥70 mm Hg降至PP＜70 mm Hg时UmALB排泌量显著下降.
社区卫生服务中心零差率与非零差率中成药用药分析

随着医疗改革制度的深入,“小病到社区,大病进医院,康复回社区”的就医观念逐渐在社区居民中形成,“社区卫生服务机构药品零差率销售政策”的执行[1],进一步吸引了患者到社区医院来就医,从而使社区医院的患者人数逐步增多。中成药以其疗效确切、不良反应少等优点深受医师和社区患者的偏爱。笔者现对本社区卫生服务中心2009年销售的零差率与非零差率中成药进行统计分析,为加强中成药的管理和临床安全、有效、合理、经济的使用提供参考依据。[取正文]
金芪饮治疗脑卒中后尿失禁疗效观察

尿失禁是脑血管意外的重要后遗症,其发生率在37%～ 58%之间,其与脑卒中的严重程度相关,并严重影响脑卒中后功能的恢复和远期生活质量[1]。笔者临床观察发现,脑卒中后尿失禁患者中有相当数量的患者属于气虚不固,采用自拟金芪饮治疗取得了良好疗效。现总结报道如下。[取正文]
中医学课堂教学中加强医学素质教育的探索

中医学是一门实践性很强的学科，如何针对学生特点，以提高学生综合素质为目的，精选教学内容，提高中医教学质量，是摆在中医教育面前的重大课题。我们以提高学生综合素质为核心，对教学内容和方法进行了改革探索。经过多年实践，学生综合素质有显著提高。现将其中的一些体会总结如下。[取正文]
甘露消毒丹化裁治疗宫颈癌术后发热探析

宫颈癌术后常可见到高热缠绵不退、临床却无明显感染灶的患者,西医一般采取多种抗生素联合治疗,但收效不佳。笔者临证每予清热利湿之甘露消毒丹化裁,往往立竿见影,疗效显著。宫颈癌术后发热是否归属于中医“湿热证”范畴？如何选用甘露消毒丹化裁治疗？现根据宫颈癌术后发热的特点,结合临床典型病例阐述如下。[取正文]
焦中华应用化积方治疗肿瘤经验

焦中华教授经过40余年的潜心研究及临床验证,根据肿瘤发生、发展、转移的病机及其演变规律,制定了具有益气健脾、解毒散结功效的抗癌专方--化积方。该方是焦师治疗肿瘤学术思想的具体体现,临证时随病证配伍用药,对各种肿瘤均有疗效。[取正文]
发作和癫痫分类框架相关术语和概念修订——国际抗癫痫联盟分类和术语委员会报告，2005-2009年

癫痫发作和癫痫的分类历史在很大程度上取决于仔细的临床观察和专家的观点。国际抗癫痫联盟(ILAE)最早于1960年发布了癫痫发作的分类，后于1981年进行了官方更新（ILAE分类与术语委员会，1981年），并于1989年提出了癫痫的分类(ILAE分类与术语委员会，1989年)，这些分类最主要是基于最新的现代神经影像学、遗传学技术和分子生物学概念。当时的制定者也预见到随着不断获取的新信息和新技术的发展，这些分类势必需要不断更新。然而这并不是一项简单的任务。专家们曾尝试更新1981年和1989年的分类方案（Engel，2001年，2006年），但并未提出新的分类建议。[取正文]
慢性中心性浆液性脉络膜视网膜病变一例的吲哚青绿血管造影超晚期影像特点及视网膜超微结构改变

慢性CSC又称弥漫性视网膜色素上皮病变(DRPE),通常表现为多灶性、不规则的部分或广泛分布的RPE病变伴随不同程度的渗漏，引起持续或反复发作的浆液性视网膜脱离、RPE脱离、黄斑部色素改变、随重力改变的河道样萎缩、视网膜毛细血管扩张、毛细血管无灌注、视网膜下纤维增生、神经视网膜退化及继发脉络膜新生血管。与急性CSC不同的是，该病常累及中老年患者．并双眼发病[1-4]。其病理改变目前认为是脉络膜血管通透性增强，RPE细胞功能异常继发RPE和 PR萎缩,神经上皮层和RPE层脱离[5]。我们对比分析了慢性 CSC患者ICGA翻转期与超晚期荧光影像特点，并联合频域 OCT成像技术和脉络膜深层成像技术(EDI)了解视网膜超微结构变化，为深入揭示CSC的病变特点提供了一个新的思路。[取自正文]
妇科腹腔镜术后罗哌卡因切口和盆腔浸润的镇痛作用

妇科腹腔镜手术具有创伤小、疼痛轻、恢复快等特点，但存在术后早期切口疼痛、内脏痛、CO_2气腹刺激引起的肩背痛及恶心、呕吐等不良反应。张智勇等[1]报道腹腔镜胆囊切除术腹腔内罗哌卡因表面麻醉及地塞米松可产生良好的术后镇痛效应，恶心呕吐发生率低，且无不良反应。但是妇科腹腔镜局麻药浸润是否可以减轻疼痛，国内报道较少。本研究探讨妇科腹腔镜手术罗哌卡因切口和盆腔浸润的术后镇痛作用，为临床提供参考。[取自正文]
巨淋巴结增生病超声表现2例

巨淋巴结增生病是一种以局部或全身淋巴结增生为表现的疾病，1956年由Castleman等首先报道[1]。本病多发于胸部、纵隔和颈部，腹腔及腹膜后较少见。其病因不清，可能与炎症和感染有关。病理分型为透明血管型、浆细胞型及混合型。临床表现分局灶型和多中心型。巨淋巴结增生病突出的临床特点是无痛巨大淋巴结。腹部以腹膜后多见，表现为腹腔、腹膜后生长缓慢的孤立肿块，多沿腹膜或肠系膜根部的淋巴链分布，巨大时易伴钙化。本组2例均属局限性。[取自正文]
油厂消防与安全设计探讨

浸出车间出现溶剂突发性燃烧可进行高密度泡沫喷淋，10 min内喷淋2 000m3混合泡沫进行覆盖灭火是行之有效的。但在预处理、精炼、小包装等丙类车间安装烟感器和喷淋装置误报警多，如果出现粉尘起火在系统内瞬时燃烧，喷淋只能降温而不能灭火。可在可能产生粉尘起火的设备内部，如烘干机、蒸脱机内安装蒸汽自动控制阀；燃煤锅炉因为要经常扒渣，炉渣本身带火，因此只能在锅炉房安装灭火器和消防栓；原料筒仓起火原因是原料自燃，仓内无法安装喷淋系统，消防和安全措施只能针对粉尘进行设置，如倒仓；平房式粕仓不能分隔，只能在室内安装灭火器和室外消防栓。
含有脂肪成分的后上纵隔节细胞神经瘤1例

节细胞神经瘤又称神经节细胞瘤、节细胞神经纤维瘤,是一种罕见的起源于椎旁交感神经链神经节的良性肿瘤,由大量黏液基质、增生的神经纤维细胞、相对少量的成熟神经节细胞和间质血管组成。所有年龄均可发病,多见于儿童和青壮年,女性多于男性。[取自正文]
脑桥中央和脑桥外髓鞘溶解症的临床与影像学特征

目的探索脑桥中央及脑桥外髓鞘溶解症的临床表现、发病机制及诊疗方法。方法对2例诊断为脑桥中央及脑桥外髓鞘溶解症患者的临床资料进行分析。结果脑桥中央及脑桥外髓鞘溶解症可表现为假性延髓麻痹、四肢瘫痪和意识障碍等。头颅磁共振是确立诊断的重要手段。结论提高对脑桥中央及脑桥外髓鞘溶解症易感因素的认识及缓慢纠正电解质紊乱将有助于预防其发生，目前无特异性治疗方法.
脂质沉积性肌病合并横纹肌溶解的临床与病理特征(附1例报告)

目的研究脂质沉积性肌病(1ipid stomge myopathies,LsM)合并横纹肌溶解(rhabdomyolysjs,RM)的临床与病理学特征。方法回顾性分析1例LSM合并RM患者的临床和病理学资料。结果本例患者青年起病,主要表现为运动不耐受,上消化道出血后病情加重,出现四肢近端肌无力,咀嚼、抬头困难,肌痛明显,一过性棕色尿。肌酸激酶(creatine kinase,CK)显著升高。肌电图示:肌源性损害。病理检查示:HE染色见大量筛状空泡纤维和坏死肌纤维,油红“0”(0Ro)染色见脂滴显著增加。经糖皮质激素和左旋肉碱等治疗后,患者症状迅速缓解。结论LsM患者短时间内出现肌无力明显加重伴棕色尿及CK显著升高,应考虑合并RM,肌活检示肌纤维内脂滴显著增加并出现大量坏死肌纤维是其肌肉病理特征。
Human Driving Forces:Analysis of Rocky Desertification in Karst Region in Guanling County,Guizhou Province

Karst rocky desertification is one of the major ecological and environmental problems that threaten the sustainable development of southwestern China.It is caused by irrational and intensive land-use patterns in karst geo-ecological environment.Therefore,it is vital to identify how human forces work on this degraded environment.Based on the soil erosion information in 2000 and remote sensing images of Guanling County collected in 2000 and 2007,four grades of karst rocky desertification data in 14 villages of Guanling County were extracted.Impacts of population,affluence,and other human forces on karst rocky desertification were analyzed using STIRPAT model.The results show that:1)Factors of population and affluence had strong influence on karst rocky desertification.In the STIRPAT model analysis,the population and affluence coefficients were positive,indicating that the increase in population and affluence would lead to more serious desertification.2)Factors of farmer correlated with karst rocky desertification negatively,especially the way of viewing the relationship between people and nature,and the level of knowledge about rocky desertification.Government behavior was not a significant factor in this analysis.3)The findings provide evidence that STIRPAT model can be used to analyze the relationship between human driving forces and rocky desertification.
胃食管交界部肿瘤与食管裂孔疝68例诊疗分析

胃食管交界部肿瘤与食管裂孔疝的关系:食管裂孔疝与胃食管交界部肿瘤的发生明显相关，特别是导致AEC I型的主要因素。[取自正文]
经椎弓根钉棒系统治疗上颈椎损伤的临床分析

寰枢椎在脊柱各运动节段中活动范围最大,承担颈椎50％的旋转和12％的侧屈活动,其稳定性极为重要。无论是在因创伤造成骨折脱位,还是因齿状突不连接等发育异常,均可造成上颈段脊髓损伤甚至危及生命。寰枢椎解剖位置特殊,手术操作难度及风险均很大。[取自正文]
粘土混浊水电导率对牡蛎礁水平夹层成因的解释——以渤海湾西北岸大吴庄牡蛎礁为例

粘土混浊水(指llO℃下烘干研磨后的lOg粘土样品与 120ml蒸馏水的混合溶液)电导率测定,在海岸带古环境恢复和海陆相地层的划分中起到了重要作用,并开始得到应用[1-3]。粘土混浊水电导率的测定原理为:未固结的粘土样品中的硫经充分氧化后变成二氧化硫,并在水溶液中进一步形成硫酸盐后溶解于溶液中[1]。电导率值(EC)与溶液中的硫酸根离子和硫酸盐的含量呈正比。硫酸根离子和硫酸盐的含量在海水、半咸水和淡水中依次减小。陆相沉积的粘土混浊水导电率一般小于0.4mS/cm,海陆过渡相为0.4-1.2mS/cm,海相沉积大于1.2mS／Cm[4]。[取自正文]
急性重症胆道感染的细菌耐药和药物选择合理性分析

目的:了解引起急性严重胆道感染的细菌分布及其耐药情况．分析临床抗菌药物应用的合理性。方法:对78例急性严重胆道感染患者术中胆总管抽取胆汁进行细菌培养并进行鉴定及药敏分析，并分析总结临床使用抗菌药物的合理性。结果:引起急性严重胆道感染常见前5位病原菌依次为大肠埃希菌(26株，27．4％)，肺炎克雷伯茵(15株． 15．8％)，肠球菌(20株，21．1％)，铜绿假单胞菌(8株． 8．4％)和葡萄球菌(7株，7．4％)；革兰阳性菌对青霉素完全耐药，而且对庆大霉素、环丙沙星及红霉素也达到了90％，万古霉素的抑菌率最高；革兰阴性茵对哌拉西林钠、头孢唑林钠耐药达到80％，亚胺培南、头孢他啶、奈替米星等广谱抗菌药物的耐药率在20％左右。结论:掌握急性严重胆道感染的细菌分布特点和耐药菌群的变化，合理的运用抗菌药物是临床疗效的重要保证。
胸腔镜食管下段肌层切开术治疗贲门失弛缓症47例

贲门失弛缓症是由于Auerbach神经节数量减少或萎缩导致食管下端括约肌(LES)异常松弛、食管体蠕动减弱所引发的疾患~[4]。从20世纪90年代末,开始用胸腔镜治疗贲门失弛缓症。除有全麻手术禁忌证及不能耐受单肺通气者或疑有恶变者外均为本手术适应证,但左侧胸腔曾有胸膜炎病史或左侧开胸病史者不适合行胸腔镜贲门肌层切开术。[取自正文]
切割球囊治疗完全性肺静脉畸形引流术后肺静脉狭窄1例

肺静脉狭窄(PVS)多见于TAPVC术后6—12个月,发生率约为10%。病变呈进行性加重,多位于吻合口并可累及肺静脉,病因多为肺静脉内皮损伤引发的细胞增生纤维化~[1]。普通球囊介入治疗由于不能彻底破坏增生内膜,疗效维持时间短。原位心包瓣非缝合技术虽可减轻肺静脉损伤,但对于双侧,特别是远端病变疗效欠佳。病儿5年生存或免于再手术比例仅占49%~[1]。[取自正文]
扁桃体多形性腺瘤1例

本例患者采用低温等离子射频技术将肿瘤及左侧扁桃体一并切除治疗,与传统扁桃体剥离法和挤切法相比,具有术中出血少、视野清、手术时间短、并能完整切除肿瘤、不挤压损伤瘤体及术后咽部疼痛轻、恢复快等优点。该患者手术时间为 7 min,术中出血约5 ml,术后疼痛较轻,术后第5天可以正常进食。术后1个月复查,黏膜愈合良好,肿瘤无复发。鉴于该疾病的易复发特点,应嘱患者术后定期随访,观察局部黏膜情况,警惕有无肿瘤复发,及时治疗。[取自正文]
颈淋巴结阴性伴高危因素甲状腺乳头状癌颈淋巴结转移规律的临床研究

甲状腺乳头状癌(papillary thyroid cancer,PTC)是最常见的甲状腺恶性肿瘤之一,占全部甲状腺癌的60%~70%,虽然其分化较好,但易发生颈淋巴结转移,cN0PTC患者是否行颈淋巴结清扫术现仍存争议。现对威海市立医院耳鼻咽喉-头颈外科87例cN0PTC伴高危因素且同期行颈清扫术患者进行回顾性分析,探讨cN0高危因素PTC患者颈淋巴结转移的特点。[取自正文]