mlsa-iai-msu-lab/ru_sci_bench_zho_cite_reranking huggingface dataset:
Identification of waterflooded zones and the impact of waterflooding on reservoir properties of the Funing Formation in the Subei Basin,China

This paper describes the identification of waterflooded zones and the impact of waterflooding on reservoir properties of sandstones of the Funing Formation at the Gao 6 Fault-block of the Gaoji Oilfield,in the Subei Basin,east China.This work presents a new approach based on a back-propagation neural network using well log data to train the network,and then generating a cross-plot plate to identify waterflooded zones.A neural network was designed and trained,and the results show that the new method is better than traditional methods.For a comparative study,two representative wells at the Gao 6 Fault-block were chosen for analysis:one from a waterflooded zone,and the other from a zone without waterflooding.Results from this analysis were used to develop a better understanding of the impact of waterflooding on reservoir properties.A range of changes are shown to have taken place in the waterflooded zone,including changes in microscopic pore structure,fluids,and minerals.
联合应用莲子心对高血压患者颈动脉内膜中层厚度、肱-踝脉搏波传导速度及血清炎症因子的影响

目的探讨莲子心在高血压患者中的抗动脉硬化作用。方法选择原发性高血压患者64例分为两组,其中西药组(厄贝沙坦150 mg/d)共32例,联合用药组(厄贝沙坦150 mg/d+莲子心2 g/d)32例,常规检测血压、心率、身高、体重、体重指数及生化指标、高敏C反应蛋白(hs-CRP),并测定肱-踝脉搏波传导速度(ba-PWV)值,颈动脉内膜中层厚度(IMT),酶联免疫吸附法检测血清基质金属蛋白酶-9(MMP-9)、白细胞介素-6(IL-6)水平;3个月后及6个月后复测各个指标。结果西药组与入组时比较,治疗6月后的颈动脉IMT明显下降(均P<0.05),联合用药组:与入组时比较,治疗3个月的IMT、MMP-9,治疗6个月的颈动脉IMT、ba-PWV、IL-6、hs-CRP、MMP-9均明显下降(均P<0.05);与西药组同期比较治疗3个月后莲子心组颈动脉IMT、hs-CRP、MMP-9较西药组均显著下降,治疗6个月的颈动脉IMT、ba-PWV 、IL-6、hs-CRP、MMP-9均明显下降(均P<0.05)。结论高血压患者加用莲子心干预治疗能够降低颈动脉IMT、ba-PWV等指标,具有抗动脉硬化作用,这些作用可能与其对炎症因子及MMP-9的表达水平的影响有关。
3R疗法延缓认知功能减退的效果评价

目的通过神经心理学指标、事件相关电位P300测定,系统评价往事回忆,现实定向和再激发的3R疗法对延缓阿尔茨海默病(AD)患者认知功能减退的效果。方法采用实验型研究设计,选择AD患者34例,进行神经心理学指标(MMSE、ADAS-cog、FAQ、NPI)、P300的基线评定,然后随机分组,对照组给予常规治疗,治疗组在常规治疗基础上采用3R疗法进行认知功能训练。在开始实施训练后的第3个月、第6个月时,分别对治疗组和对照组的患者进行各项指标的评定与分析。结果3R治疗组生活能力显著提高(P<0.01);社会活动能力提高(P<0.05);P300潜伏期缩短,波幅增加(P<0.01)。结论3R疗法能有效提高AD患者生活自理能力、社会活动能力,延缓认知功能减退。
CT引导下射频消融治疗肝癌术后感染的原因与防范

射频消融治疗(RFA)是肝癌的重要治疗手段。RFA术后感染可以引起脓肿、败血症,甚至死亡。回顾性分析医院2009年1月-2012年6月78例在CT引导下进行RFA肝癌患者临床资料,并分析术后感染的原因,现报道如下。
红优2155在福建上杭种植表现及高产栽培技术

三系杂交早籼稻新组合红优2155于2011-2012年连续2 a在福建上杭县试种示范,表现生育期适中、植株较高大、群体结构较好、穗大粒重、丰产性较好,但感稻瘟病、抗倒伏性较弱,可在上杭县稻瘟病轻发地区作双季早稻种植。介绍了该组合在上杭县的高产栽培技术。
赫山区超级杂交早稻"种三产四"丰产工程高产栽培技术

湖南省益阳市赫山区于2007年开始实施超级杂交稻"种三产四"丰产工程,采取"超级杂交早稻+优质常规晚稻"的模式,6 a共推广超级杂交早稻2.94万hm~2,增产稻谷6.74万t,摸索出了一套行之有效的配套高产栽培技术。
杂交水稻母本抛秧制种技术在广西容县的应用

介绍了杂交水稻母本抛秧制种技术的意义和推广应用的主要障碍,针对母本抛秧与手插的差异,介绍了杂交水稻母本抛秧制种技术在广西容县的应用措施。
慢性血栓栓塞性肺动脉高压预后相关危险因素的研究进展

慢性血栓栓塞性肺动脉高压(chronic thrombembolic pulmonary hypertension,CTEPH)是一种由于肺部血栓不能完全溶解或反复再栓塞造成的疾病,临床上以呼吸困难、乏力、运动耐量下降等一系列症状为主要表现,最终造成肺动脉压力升高以及进行性右心功能衰竭,急性肺栓塞后CTEPH的发病率为0.57%~9.1%。2001年全美CTEPH发生率为每年1.02例/100万,2005年上升至每年1.75例/100万,此数据只包括已明确诊断及注册登记的患者,因此实际发病率可能更高。Kirson等计算了美国1999—2007年间CTEPH的发病率,<65岁的人群中,CTEPH的发生率为63/100万;≧65岁的人群中,CTEPH的发生率分别为1007/100万。而在西班牙的大型注册登记研究中,结果显示CTEPH的发生率为每年3.2例/100万。
国产地面三维激光扫描仪解决方案

地理信息从二维到三维的转变,改变了人们跟信息交互的方式,并推动着三维空间数据获取向着集成化、实时化、动态化、数字化和智能化方向发展。随着激光、微电子、计算机和传感器等技术的发展和应用需求推动,激光测量技术逐步由点对点的激光测距发展到采用非接触主动测量方式快速获取物体表面大量采样点三维空间坐标的三维激光扫描测量。这是一种快速、直接、高精度、高密度、点云式的三维空间信息获取方式,为三维空间信息的获取提供了全新的技术手段,为三维空间信息数字化发展提供了必要的生存条件。
我国测绘类期刊OA现状调查与分析

对我国公开出版的测绘类期刊的开放存取现状进行统计调查,指出存在的问题及不足,并分析OA出版对测绘类期刊传播方式、传播范围、影响因子的影响及内在联系,最后提出测绘类期刊发展OA出版的策略,以期能为测绘类期刊的OA发展提供有益参考。
利用三维可视化平台快速计算地质灾害区塌方量的方法研究

基于三维可视化平台,利用离散点内插的方法构建地质灾害区表面TIN模型,并利用C#语言实现地质灾害区塌方量的算法。在理论上该方法所描述的地面模型逼真且能保持原始数据的原有精度,而且采用TIN进行体积计算,易于计算机实现。通过塌方区实例数据验证该方法具有速度快、精度高、作业效率好等优点,可以满足地质灾害应急需求。
全球电离层TEC数据统计分析与全局趋势分析

以IGS发布的电离层TEC数据为样本,通过三维图、等值线图、频率直方图等对数据进行统计分析,得出电离层TEC在时间和空间上的变化规律。对全球电离层数据进行球谐函数拟合,并通过分析找出其最合适的阶数。
心肺复苏后的亚低温治疗

多年来,尽管心肺复苏(CPR)技术取得了很多进展,但是CPR后患者的存活率未见明显提高,其中一个主要原因是CPR后缺乏确切的脑保护措施。目前,唯一被临床证实能提高心搏骤停后昏迷患者的生存率,改善神经功能预后的治疗只有亚低温(HT)。但HT在临床上仍未被充分利用其潜在的益处还没被完全挖掘出来。本文中将对HT的神经保护机制、副作用等予以综述,以深化对HT的认识,并为临床上优化HT治疗提供理论依据。
Performance in Grain Yield and Physiological Traits of Rice in the Yangtze River Basin of China During the Last 60 yr

Knowledge on the performance in grain yield and physiological traits is essential to understand the main yield-limiting factor and make strategies for breeding and crop management in rice (Oryza sativa L.). This study investigated the changes in grain yield and associated physiological traits of rice in the Yangtze River Basin of China during the last 60 yr. Thirteen mid-season indica and 12 japonica rice cultivars that were popularly used were grown in the field in 2008 and 2009. The grain yield and yield components, biomass, leaf area, leaf photosynthesis, root oxidation activity, and harvest index were examined. The results showed that grain yield and grain yield per day have progressively increased during the years and such increases are mainly attributed to the expanded sink size as a result of more spikelets per panicle, especially for the case of super rice. Both biomass and harvest index were increased with the improvement of cultivars. Increase in biomass for modern rice cultivars was associated with an enhancement of leaf area and photosynthesis, root dry weight, and root oxidation activity, although the indica super rice cultivars showed a lower leaf photosynthetic rate and root oxidation activity than the semi-dwarf cultivars during the grain filling period. Both indica and japonica super rice cultivars exhibited a low percentage of filled grains, which may limit their great yield potential. All the data suggested that grain yield have been substantially improved during the 60 yr of rice breeding in the Yangtze River Basin. Expanded sink size, increased dry matter production and harvest index, and enhanced leaf area and photosynthesis, root dry weight, and root oxidation activity contribute to the improvement in grain yield. Increase in filling efficiency could realize the great yield potential in super rice.
Functional Analysis of the Phosphoenolpyruvate Carboxylase on the Lipid Accumulation of Peanut(Arachis hypogaea L.) Seeds

Phosphoenolpyruvate carboxylase(PEPC;EC 4.1.1.31) catalyses phosphoenolpyruvate(PEP) to yield oxaloacetate,which is involved in protein biosynthesis.Pyruvate kinase(PK;EC 2.7.1.40) catalyzes PEP to yield pyruvate,which is involved in fatty acid synthesis.In this study,five PEPC genes(AhPEPC1,AhPEPC2,AhPEPC3,AhPEPC4,and AhPEPC5) from peanut have been cloned.Using a quantitative real-time RT-PCR approach,the expression pattern of each gene was monitored during the seed development of four peanut varieties(E11,Hebeigaoyou,Naihan 1,and Huayu 26).It was found that these five genes shared similar expression behaviors over the developmental stages of E11 with high expression levels at 30 and 40 d after pegging(DAP);whereas these five genes showed irregular expression patterns during the seed development of Hebeigaoyou.In Naihan 1 and Huayu 26,the expression levels of the five genes remained relatively high in the first stage.The PEPC activity was monitored during the seed development of four peanut varieties and seed oil content was also characterized during whole period of seed development.The PEPC activity followed the oil accumulation pattern during the early stages of development but they showed a significantly negative correlation thereafter.These results suggested that PEPC may play an important role in lipid accumulation during the seed development of four peanut varieties tested.
一种描述电磁场与电路的统一理论

本文在似稳任意线性网络里由网络场论在似稳电磁场情况下证明麦克斯韦方程组是电网络基本方程组,找到了电磁场基本方程组和电网络基本方程组有相同的物理起源都是麦克斯韦方程组,由此提岀一种描述电磁场与电路的统一理论.在证明过程推演表达网络线图基本概念时发现了对于B条支路和N个节点的电网络必有(B-N+1)个独立回路乃起因于电荷守恒定律,在推演表达电路元件基本概念时发现了4种基本电路元件特性公式乃全部起源于电路上电磁场能量转换与守恒定律,及在推演电路上真正的电路基本定律时阐明了由它的推论之一得到的基尔霍夫定律为什么不能是电路基本定律的充分理由.
改进的南极洲陆地卫星影像镶嵌图

研究改进LIMA数据处理方法,使用1073景Landsat7-ETM+数据制作了改进的南极洲陆地卫星影像镶嵌图.改进的镶嵌图较LIMA的优势体现在影像处理流程的3个方面:(1)DN值饱和溢出调整采用更高精度的线性回归方法;(2)利用每个像元的经纬度和影像中心点的拍摄时间逐像元计算太阳高度角,提高了太阳高度角的计算精度;(3)选择了更有效的GS融合方法,将更多的波段(波段5和7)加入融合产品的制作,在南极地类识别上优势更加明显.另外,以16bit进行存储的行星反射率产品很好的保持了冰雪表面的高辐射分辨率.从目视效果、信息熵以及分类等方面与LIMA数据进行比较,结果表明本文数据具有明显的优势.
全桥型MMC-MTDC直流故障穿越能力分析

全桥模块化多电平换流器FBMMC具有穿越严重直流故障的能力,非常适用于多端柔性直流输电场合,然而尚未见文献报道其直流故障定位和隔离方法以及相应的直流故障穿越能力指标.介绍了FBMMC的拓扑机制,给出了其降损运行措施,并理论上证明了其可以采用电压源换流器的通用解耦控制策略及半桥MMC相似的调制策略以构成完整的闭环系统.结合两电平电压源换流器多端柔性直流输电VSC-MTDC系统的直流故障线路定位和隔离方法以及FBMMC拓扑的特殊性,提出了适用于FBMMC-MTDC的直流故障选线“握手原则”,并提出了可以衡量包括FBMMC-MTDC在内的VSC-MTDC系统直流故障穿越能力指标DFRTI. PSCAD/EMTDC下FBMMC-MTDC系统仿真结果验证了所提出控制策略及相应评价指标的正确性和有效性.
贵州大竹园铝土矿中钨和锂的发现与综合评价

铝土矿是我国近年来取得找矿进展的主要矿种之一,也是进口量比较大的紧缺资源.通过对贵州新近勘探的大竹园大型铝土矿的研究,发现了钨和锂的富集现象(WO_3最高达0.33%,Li_2O最高达0.58%).本文报道了这一结果,并分析了其在矿体中的分布特征(锂主要富集在栗园向斜西翼的北部,钨富集在向斜东翼中部),提出了锂和钨可以单独圈定矿体的建议,探讨了其工业利用的可行性,指出了此类矿产资源综合评价的新方向,以期及时指导矿产资源预测和潜力评价工作.
肝外门静脉瘤误诊为胰头癌一例

门静脉瘤少见,其发病率不足全身静脉瘤发病率的3%,发病机制尚不明确。该病无明显临床症状,大多数的肝门静脉瘤于体格检查中发现。但亦存在着发生瘤体破裂、血栓形成等风险,因此早发现、早诊断、早治疗对患者的预后有十分重要的意义。本研究回顾性分析武警8710部队医院收治的1例肝外门静脉瘤误诊为胰头癌患者的临床资料,探讨该病误诊原因。
肝脏血管周上皮样细胞瘤一例

因肝脏PEComa罕见,目前尚无明确良恶性的诊断标准以及有效的治疗方法,惟一可靠的治疗方法是完整地切除肿瘤。本例患者术中快速冷冻切片病理检查示肝细胞腺瘤或高分化肝细胞癌,为了达到根治的目的,我们完整切除了肿瘤所在肝段。免疫组织化学染色检查Ki-67<3%,提示肿瘤倾向良性,癌细胞增殖不活跃。因此,术后未行其他治疗,但仍需密切随访。
乳腺癌根治术后胸壁放疗切射野CLD、MHD与DVH图心肺剂量指标的关系

目的分析乳腺癌根治术后胸壁三维适形放疗计划中切线野中心肺厚度(CLD)、最大心脏距离(MHD)与剂量体积直方图(DVH)中肺、心脏受照射剂量体积的关系。方法选择乳腺癌根治术后患者50例,采用三维治疗计划系统设计胸壁切线野计划,处方剂量为50Gy/25次,并勾画正常组织。利用数字重建图像(DRR)获得CLD和MHD,利用DVH图获得肺、心脏相关的剂量学指标,并计算他们之间的关系。结果左侧患者同侧肺放疗平均剂量(mean dose,Dmean)与CLD直线相关,大约是CLD的2倍,肺V20大约是CLD的5倍。右侧患者同侧肺V20大约是CLD的5倍。左侧患者心脏Dmean大约是MHD的2倍,心脏V30大约是MHD的5倍。结论乳腺癌术后胸壁切线野计划中的CLD、MHD与心肺所受照射的剂量体积密切相关。
自发性肾周血肿3例并文献复习

自发性肾周血肿是一种少见的肾脏出血性疾病。最常见的症状为腰、腹部疼痛,仅少数患者发生肉眼或镜下血尿,有11%的患者因为严重腹膜后出血导致低血容量性休克。自发性肾周血肿发病率较低,文献多为个案报道。由于自发性肾周血肿发病原因较多,准确的病因诊断对于制定适宜的治疗方案至关重要。本院2008年5月至2011年3月收治了3例自发性肾周血肿患者,现报道如下。
补肾升阳活血法治疗糖尿病神经源性膀胱

糖尿病神经源性膀胱(diabetic neurogenic bladder,DNB)是糖尿病在泌尿系统常见的慢性并发症。由于自主神经尤其是副交感神经障碍引起的排尿反射异常、膀胱功能障碍,多表现为尿频、尿急、尿无力、排尿时间延长、小便淋沥不尽、尿失禁,严重时整个膀胱尿潴留,可引起泌尿系感染,导致或加重肾功能衰竭。目前,对该病的治疗除严格控制血糖外,常应用改善神经营养、纠正代谢紊乱等方法治疗,但效果并不令人满意。笔者在临床诊疗过程中发现,通过温补肾气、升发阳气、活血利水治疗DNB病变,临床疗效显著,兹就其作用机理作一探讨。
王绪保辨治糖尿病周围神经病变经验介绍

本院王绪保老中医是甘肃省第四批老中医药专家学术经验继承工作指导老师,从事医疗工作40余年,博及医源,精研医理,临床经验颇丰,享有盛誉。糖尿病周围神经病变是糖尿病的常见慢性并发症之一,西医目前主要是针对病因和对症治疗,近期缓解症状有效,但远期效果不理想。本病属中医学“消渴”范畴。王师通过大量临床实践,总结前贤,主张紧紧抓住消渴病久入络、痰瘀阻滞这一重要病机,灵活运用活血化瘀、化痰通络之法治疗糖尿病周围神经病变这一顽疾,效果明显。笔者有幸作为王师学术经验继承人待诊左右,受益匪浅。现将其从瘀从痰论治糖尿病周围神经病变的学术思想及临床经验总结介绍如下.
Structure-function analysis reveals a novel mechanism for regulation of histone demethylase LSD2/AOFI/KDMIb

LSD2/AOFl/KDMlb catalyzes demethylation of mono- and di-methylated H3K4 and plays an important role in transcriptional regulation and genomic imprinting. Here, we report the high-resolution crystal structures of apo-LSD2 and LSD2 in complex with a peptide that mimics H3K4me2. Three structural domains of LSD2, namely, the novel N-terminal zinc finger, the centrally located SWIRM domain, and the C-terminal oxidase domain, closely pack together to form a boot-shaped structure. The active site cavity in the oxidase domain is large enough to accommodate several residues of the histone H3 tail and cannot discriminate between the different states of H3K4 methyla-tion. The N-terminal zinc-finger domain, composed of a novel C4H2C2-type zinc finger and a specific CW-type zinc finger, is required for demethylase activity and, surprisingly, the binding of cofactor flavin adenine dinucleotide (FAD). In fact, a relay of extensive interactions through the zinc finger-SWIRM-oxidase domains is required for LSD2 demethylase activity and the binding of FAD. These results reveal a novel mechanism for the zinc finger and SWIRM domains in controlling LSD2 demethylase activity and provide a framework for elucidating the regulation and function of LSD2.
Major risk-stratification models fail to predict outcomes in patients with multivessel coronary artery disease undergoing simultaneous hybrid procedure

Background The hybrid procedure for coronary heart disease combines minimally invasive coronary artery bypass grafting (CABG) and percutaneous coronary intervention (PCI) and is an alternative to revascularization treatment. We sought to assess the predictive value of four risk-stratification models for risk assessment of major adverse cardiac and cerebrovascular events (MACCE) in patients with multivessel disease undergoing hybrid coronary revascularization. Methods The data of 120 patients were retrospectively collected and the SYNTAX score,EuroSCORE,SinoSCORE and the Global Risk Classification (GRC) calculated for each patient. The outcomes of interest were 2.7-year incidences of MACCE,including death,myocardial infarction,stroke,and any-vessel revascularization. Results During a mean of 2.7-year follow-up,actuarial survival was 99.17%,and no myocardial infarctions occurred. The discriminatory power (area under curve (AUC)) of the SYNTAX score,EuroSCORE,SinoSCORE and GRC for 2.7-year MACCE was 0.60 (95% confidence interval 0.42–0.77),0.65 (0.47–0.82),0.57 (0.39–0.75) and 0.65 (0.46–0.83),respectively. The calibration characteristics of the SYNTAX score,EuroSCORE,SinoSCORE and GRC were 3.92 (P=0.86),5.39 (P=0.37),13.81 (P=0.32) and 0.02 (P=0.89),respectively. Conclusions In patients with multivessel disease undergoing a hybrid procedure,the SYNTAX score,EuroSCORE,SinoSCORE and GRC were inaccurate in predicting MACCE. Modifying risk-stratification models to improve the predictive value for a hybrid procedure is needed.
湿地碳计量方法及中国湿地有机碳库初步估计

湿地碳计量是湿地资源保护和增汇技术实施的前提条件.在全面整理碳计量方法和探讨湿地碳计量的困难性后,认为清单法是在国家尺度上估算中国湿地有机碳库的一种现实可行的方法.为了弄清楚我国湿地到底固了多少有机碳?在先前的研究基础之上,利用改进后的清单法进行了研究.主要结果如下:(1)中国湿地有机碳库总计达5.39~7.25pg,约占全球湿地碳储量(154~550pg)的1.3%~3.5%.(2)中国湿地土壤有机碳库(5.04~6.19pg)>中国水体有机碳库(0.22~0.56pg)>中国湿地植被碳库(0.13~0.50pg),分别占中国湿地有机碳库的85.4%~93.5%,4.1%~7.7%和2.4%~6.9%.本文估算的中国湿地土壤有机碳库要高于先前的研究结果3.67pg,但低于前人的研究结果12.20和8~10pg.在讨论和不确定性分析的基础上,对今后深入研究的方向进行了展望.
Secular trends in the etiology and comorbidity of hospitalized patients with congestive heart failure: A single-center retrospective study

Objective To assess the secular trends in the etiology and comorbidity of patients hospitalized with congestive heart failure (CHF). Methods Data of 7,319 patients (mean age 59.6 years, 62.1% male) with a primary discharge diagnosis of CHF, hospitalized from January 1, 1993 to December 31, 2007 at the Chinese People’s Liberation Army (PLA) General Hospital were extracted and analyzed. These patients were divided into three groups according to hospitalization period: 1993–1997 (n = 1623), 1998–2002 (n = 2444), and 2003–2007 (n = 3252). The etiological characteristics and comorbidities were assessed. Results Over the study period, the proportion of patients with ischemic heart disease (IHD) increased from 37.2% during the period 1993–1997 to 46.8% during the period 2003–2007, while that with valvular heart disease (VHD) decreased from 35.2% during the period 1993–1997 to 16.6% during the period 2003–2007 (both P < 0.05). Atrial fibrillation (AF) was the most common comorbidity of heart failure (23.2%, 23.0% and 20.6%, respectively, in the three periods). Compared to that of he period of 1993–1997 with that of, the proportion of patients with myocardial infarction, pneumonia, renal function impairment and epatic cirrhosis of the period of 2003–2007 increased significantly (P < 0.05) and the proportion of patients with chronic obstructive ulmonary disease and atrial fibrillation decreased significantly (P < 0.05). Conclusions This study implies that IHD has became a more ommon etiology of CHF, while VHD has deceased as an etiology of CHF in Chinese patients during the last two decades.
Long term survival of patients with raised pulmonary arterial systolic pressure utilizing echocardiography—a five-year prospective study

Background Pulmonary arterial systolic pressure (PASP) can be estimated with transthoracic echocardiography. However, the significance of raised PASP on routine echocardiography is uncertain. In this study, we evaluated the mortality and hospitalization rates of subjects with raised PASP in a cohort of patients referred directly by their general practitioners for routine outpatient (open access) echocardiography for further analysis of suspected heart failure. Results A total of 485 subjects were referred for open access echocardiography at our hospital in 2002. A cohort of 209/485 (43%) consecutive subjects with measurable tricuspid regurgitation were followed for a minimum of five years investigating hospitalization rates and survival. Some 62 of 209 (30%) subjects had pulmonary hypertension (PH). Subjects with PH were significantly more likely to have four or more hospital admissions (22% vs. 8%; P < 0.01) and > 30 days of cumulative hospital stay over five years (29% vs. 13%; P < 0.01). PH was significantly associated with mortality (P = 0.003), while moderate to severe PH was an independent predictor of mortality (hazard ratio: 4.31; 95% confidence interval (95% CI): 1.51–12.30). Records from the Office of National Statistics revealed that subjects with PH were more likely to have chronic lung diseases recorded as immediate or contributory causes of death (50% vs. 14%; P < 0.05). Conclusions PASP ≥ 36 mmHg on routine echocardiography is associated with recurrent hospital admissions, prolonged hospitalizations and increased cause of mortality. Therefore, the diagnosis of PH on echocardiography deserves further clinical evaluation, with future studies designed at defining a suitable diagnostic strategy.
大型海藻孔石莼在工厂化海水养殖中的生物修复及其应用前景

海水养殖业是山东半岛蓝色经济区建设产业群的重要组成部分。在大力发展蓝色经济的宏观指导下,海水养殖业特别是工厂化海水养殖业得以快速发展。近几年,除了较早发展的室内鲍鱼养殖外,我国许多海水养殖品种和养殖规模都有所扩大,如真鲷、牙鲆、美国红鱼、大西洋鲑等。在以低碳养殖(低能耗、低排放、低污染)为产业发展方向的政策指引下,一种对环境友好、对生物无害、可高值化利用的养殖模式——海基(生态型)和陆基(集约型)两大类型的工厂化养殖模式成为养殖业发展的方向。大型藻类由于生长速度快,海水净化能力强,用其在水产养殖过程中替代化学和微生物方法净化水质,维持养殖生态平衡,取得了良好的效果。
下咽部上皮肌上皮癌一例

上皮-肌上皮癌是较少见的恶性肿瘤,Donath于1972年首先报道。以往国内外文献仅见散在个案报道,世界卫生组织于1992年才将其列为一类独立的涎腺肿瘤。上皮-肌上皮癌主要发生于腮腺,有个别报告发生在乳腺、肺、鼻腔、鼻窦等。但尚未见发生于下咽部的上皮-肌上皮癌。上皮-肌上皮癌具有以下特点
DHS结合松质骨螺钉在老年股骨转子间骨折治疗中的应用

股骨转子间骨折多见于老年人,约占髋部骨折的31%~51%,是老年人常见的骨折类型之一。目前,股骨转子间骨折患者治疗以手术为主,但是,尚未形成统一的规范。因此,探寻安全高效的股骨转子间骨折手术治疗方案是广大骨科医师和学者们关注的焦点之一。本文就采用动力髋螺钉(DHS)内固定手术和DHS结合大转子部松质骨螺钉治疗我院骨科住院100例股骨转子间骨折患者的临床疗效和安全性进行观察分析。
高龄急性上消化道出血98例病因分析

急性上消化道出血(AUGIH)是指屈氏韧带以上的消化道出血,主要是食道、胃、十二指肠等部位,其起病急、进展快,可危及生命,是临床上常见的急危重症。AUGIH的临床表现不典型,伴随疾病多,由于生理功能和病理生理的差异,老年与中青年相比临床特点存在较大的差异,且老年人常伴有一些慢性疾病,该病的危害及死亡率也较中青年高,为了进一步提高对老年人AUGIH病因的认识,本研究回顾性分析了我院收治的高龄AUGIH患者的临床资料,以期为老年AUGIH的防治提供更多的理论依据。
皮肤鳞状细胞癌中组织蛋白酶D的表达对Ki67和PCNA表达阳性细胞的增殖作用

目的检测皮肤鳞状细胞癌中组织蛋白酶D、Ki67和PCNA的表达关系及在不同临床病理特征中的差别。方法以72例皮肤鳞状细胞癌标本作为观察组,以50例正常皮肤组织作为对照组,采用免疫组织化学方法检测两组中组织蛋白酶D、Ki67和PCNA的表达,探讨组织蛋白酶D、Ki67和PCNA在不同临床病理特征中的表达差别,关注组织蛋白酶D对Ki67和PCNA表达阳性细胞的增殖作用。结果观察组中组织蛋白酶D、Ki67和PCNA表达的阳性率明显高于对照组,观察组中组织蛋白酶D、Ki67和PCNA表达的阳性率与肿瘤的最大直径、分化程度、淋巴道转移及脉管浸润密切相关。相关性分析显示观察组中组织蛋白酶D和Ki67、组织蛋白酶D和PCNA、Ki67和PCNA的表达均呈正相关性。结论皮肤鳞状细胞癌中组织蛋白酶D、Ki67和PCNA高表达,在肿瘤进展中具有重要的促进作用,组织蛋白酶D可能对肿瘤细胞中Ki67和PCNA阳性细胞的增殖有促进作用。
无症状性下肢静脉血栓形成临床报道1例

病例资料患者孔某,男,58岁,干,部,因“四肢活动不利1月余”入住同济医院康复医学科,人院诊断为:①脑梗死,双侧偏瘫,言语障碍,吞咽障碍;②高血压病1级。既往有高血压病史数年,未规律服用降压药,有高同型半胱氨酸血症、视网膜脱落及腰椎间盘突出症等病史。患者人院时表现为双侧偏瘫,左侧面舌瘫,双下肢无肿胀、疼痛,下肢皮温及体温均正常。人院后经常规查凝血功能正常,行双下肢血管彩超显示“双侧胫后静脉血栓形成,双下肢动脉多发粥样硬化斑块形成”。立即停止双下肢被动活动训练,并嘱患者双下肢适当制动,给予华法林(2. 5 mg,口服,1次/d)抗凝治疗,并监测凝血时间变化情况,定期复查患者双下肢血管彩超,患者凝血酶原时间(prothmmbin time, PT)的国际标准化比值(international normalized ratio, INR)控制在2. 0~3. 0. 3 d后复查凝血常规显示INR正常。1周后复查凝血功能显示INR为1. 87,双下肢血管彩超显示“双下肢动脉粥样硬化斑块形成,右侧静脉远心段血栓形成”。此时患者下肢深静脉血栓已被部分溶解,病情好转,继续给予抗凝治疗。2周后再次复查凝血常规显示1NR为2. 01,双下肢血管彩超显示“双下肢血管未见血栓”,停止口服华法林抗凝治疗。此时患者双下肢深静脉血栓已基本消失,减少了发生再卒中及肺栓塞的风险,有助于患者接受下一步系统康复治疗。
Comparative efficiency analysis of different nonlinear modelling strategies to simulate the biaxial response of RC columns

The performance of different nonlinear modelling strategies to simulate the response of RC columns subjected to axial load combined with cyclic biaxial horizontal loading is compared. The models studied are classified into two categories according to the nonlinearity distribution assumed in the elements: lumped-plasticity and distributed inelasticity. For this study, results of tests on 24 columns subjected to cyclic uniaxial and biaxial lateral displacements were numerically reproduced. The analyses show that the global envelope response is satisfactorily represented with the three modelling strategies, but significant differences were found in the strength degradation for higher drift demands and energy dissipation.
Explicit concomitance of implicit method to solve vibration equation

It has been proven that the implicit method used to solve the vibration equation can be transformed into an explicit method,which is called the concomitant explicit method.The constant acceleration method’s concomitant explicit method was used as an example and is described in detail in this paper.The relationship between the implicit method and explicit method is defined,which provides some guidance about how to create a new explicit method that has high precision and computational efficiency.
A simplified multisupport response spectrum method

A simplified multisupport response spectrum method is presented.The structural response is a sum of two components of a structure with a first natural period less than 2 s.The first component is the pseudostatic response caused by the inconsistent motions of the structural supports,and the second is the structural dynamic response to ground motion accelerations.This method is formally consistent with the classical response spectrum method,and the effects of multisupport excitation are considered for any modal response spectrum or modal superposition.If the seismic inputs at each support are the same,the support displacements caused by the pseudostatic response become rigid body displacements.The response spectrum in the case of multisupport excitations then reduces to that for uniform excitations.In other words,this multisupport response spectrum method is a modification and extension of the existing response spectrum method under uniform excitation.Moreover,most of the coherency coefficients in this formulation are simplified by approximating the ground motion excitation as white noise.The results indicate that this simplification can reduce the calculation time while maintaining accuracy.Furthermore,the internal forces obtained by the multisupport response spectrum method are compared with those produced by the traditional response spectrum method in two case studies of existing long-span structures.Because the effects of inconsistent support displacements are not considered in the traditional response spectrum method,the values of internal forces near the supports are underestimated.These regions are important potential failure points and deserve special attention in the seismic design of reticulated structures.
A study of local amplification effect of soil layers on ground motion in the Kathmandu Valley using microtremor analysis

Past researchers have anticipated the occurrence of a great earthquake in the central Himalayas in the near future.This may cause serious damage in the Kathmandu Valley,which sits on an ancient lake bed zone,with lacustrine sediments of more than 500 m depth.In this study,the predominant frequency of ground motion is evaluated using the Horizontal-to-Vertical(H/V) spectral ratio technique and recordings of ambient noise.The results of the H/V ratio show two peaks in about 20 percent of the locations,which are distributed mainly in and around the center and northern part of the Kathmandu Valley.The predominant frequencies vary from 0.5 Hz to 8.9 Hz in the study area,whereas the second resonance frequency varies from 4 Hz to 6 Hz in the center and northern part of the valley.This indicates that the center and northern part of the valley have a wide range of resonance frequency due to two levels of impedance contrast one may be from the surface layer and the other may be from the layer underneath.These two levels of resonance indicate the importance of considering the effects of surface and lower layers during the planning and designing of infrastructures in the Kathmandu Valley.
浅议冠心病从胆论治

冠心病属"胸痹"、"真心痛"等范畴,临床表现以本虚标实为特征。标实责之于痰湿、瘀血和气滞,本虚则从心、肝、脾、肾论治,其说不一,主要是因为临床上患者的体质和兼夹病证的不同。随着有关冠心病中西医研究的进展,有的学者认为肝胆疏泄失常与冠心病的发病有着密切联系,并提出胆心同治的新治法。但只限于疏肝利胆方药的临床应用,鲜有相关理论的研究。本文试图从胆心之间的生理、病理角度论述冠心病的病因病机及其治法,为进一步探讨中医药治疗冠心病的途径提供某些新的思路和方法。