mlsa-iai-msu-lab/ru_sci_bench_zho_cite_reranking huggingface dataset:
Source and Enrichment Mechanism of Lithium in the Triassic Argillaceous Marine Sediments from Huangjinkou, Sichuan, China

In the Triassic marine sediments, an obvious enrichment of lithium has been found. The source and enrichment mechanism of lithium is unknown. Here, we report trace and rare earth element and isotope analyses for Triassic sedimentary samples from core ZK601, recovered from the Huangjinkou anticline in the Xuanhan basin. Lithium concentrations from the Leikoupo and Jialingjiang formations are much higher than the average concentrations in the crust of eastern China and in other marine sediments. Lithium concentrations are highest at depths of 3300-3360 m (in argillaceous marine sediments), and Li is positively correlated with Rb, Ga, Zr, Nb and other trace elements. The range of δ7Li values in our samples is consistent with that in other Triassic marine carbonate rocks. Lithium concentrations and isotope ratios are negatively correlated in the argillaceous dolomite samples at depths of 3300-3360 m. We compared the results in this study with trace and rare earth elements in the clay from Sichuan and Chongqing, and propose that the clay in the argillaceous marine evaporites from Huangjinkou formed via the hydrolysis of volcanic ash during Early-Middle Triassic volcanic eruptions into brine basins, during which clay adsorbed Li from the brine and formed Li-rich argillaceous dolomites. The addition and hydrolysis of volcanic ash in the evaporative brine is also related to the formation of a new type of polyhalite.
Two-episode Tectono-thermal Events of the Heyuan Fault in Late Cretaceous and Oligocene and their Tectonic Implications, Southernmost South China Block

The Heyuan Fault, is one of the main NE-trending faults in the southernmost South China Block and is close to the northernmost South China Sea to the south. The fault features multi-stage deformation and controlled the formation of late Cretaceous to Cenozoic basins. Based on detailed field investigations and comprehensive geochronological research, including zircon U-Pb, Rb-Sr isochron, zircon U-Th-He dating, two episodic tectono-thermal events are recognized. The first occurred during ~79 Ma to 66 Ma, which is characterized by large-scale quartz-fluid emplacement. The other occurred at ~34 Ma, which features the eruption of a set of basalts. The two events show a changing on material source from siliceous hydrotherm to basalt magma, supporting obvious lithospheric thinning of the southernmost South China Block, which shed light on the geological evolution and the interaction mechanisms between the SCB and the northern South China Sea since the Late Cretaceous.
THE TIME DECAY RATES OF THE CLASSICAL SOLUTION TO THE POISSON-NERNST-PLANCK-FOURIER EQUATIONS IN R~3

In this work, the Poisson-Nernst-Planck-Fourier system in three dimensions is considered. For when the initial data regards a small perturbation around the constant equilibrium state in a H~3 ∩H~(–s)(0 ≤ s ≤ 1/2) norm, we obtain the time convergence rate of the global solution by a regularity interpolation trick and an energy method.
Coral-like carbon-based composite derived from layered structure Co-MOF-71 with outstanding impedance matching and tunable microwave absorption performance

Metal-organic frameworks (MOFs) are considered as a novel type of microwave absorption (MA) material owing to the sufficient pore structure, diverse configurations, and easy-to-control magnetic properties. However, their evolution is limited by the imperfect impedance matching conditions caused by the undesirable microstructure. Herein, two types of novel porous coral-like carbon/Co_3O_4 and carbon/Co composites have been effectively fabricated for the first time by a facile heat treatment process of precursor Co-MOF-71. The graphitization degree, magnetic property and MA ability of the product can be effortlessly tuned by altering the heat treatment temperature of Co-MOF-71. Remarkably, S500 (Co-MOF-71 calcined at 500 °C) composite displays strong and multi-frequency absorption performance, whose minimum reflection loss (RL) value achieves-36.4 dB with an absorbing thickness of 3.0 mm and attains an effective absorbing bandwidth (RL ≤-10 dB) of 5.76 GHz (almost covers whole Ku band) at a thinner coating thickness of 2.5 mm. Such superb MA ability has roots in the coral-like structure derived from the layer Co-MOF-71, sufficient electromagnetic loss. This work ameliorates the MA ability of MOFs through a special nanostructural design, which provides a fresh way for the preparation of novel MA materials.
Expanded graphite confined SnO_2 as anode for lithium ion batteries with low average working potential and enhanced rate capability

As the state-of-the-art power resources, lithium ion batteries (LIBs) have dominated the market of smart and portable electronic devices over the past several decades. At present, LIBs have been considered as one of the leading technologies for electric vehicles (EVs) and stationary energy storage systems (ESSs) [ 1, 2 ]. In order to meet the high demands arising from large-scale applications of EVs and ESSs, the development of LIBs with high energy densities, long cycle life and safe operating environment becomes critically important. Owing to the low average potential of ~ 0.1 V vs. Li/Li +, excellent cycling stability and rich natural resources, graphite is the most commonly used anode for LIBs. Nevertheless, its relatively low capacity of ~ 372 mAh g~(-1), potential of lithium dendrites on the graphite electrode surface and poor rate capability severely limit its applications in EVs and ESSs in future. Metallic tin (Sn) and its derivatives ( e.g., Sn-based alloys, tin oxides/sulfides and stannates) have attracted great attention to replace the graphite. This is mainly due to their high theoretical capacities ( e.g., 1494 mAh g~(-1) for SnO_2 ) [3]. Similar to other members from IVA group ( e.g., Si, Ge and Pb), Sn based materials suffer from huge volume changes up to 300% and easy agglomeration of active materials during the cycles, and thus leading to the rapid capacity decay [4].
Impact of gas pressure on particle feature in Fe-based amorphous alloy powders via gas atomization: Simulation and experiment

Gas atomization is now an important production technique for Fe-based amorphous alloy powders used in additive manufacturing, particularly selective laser melting, fabricating large-sized Fe-based bulk metallic glasses. Using the realizable k-ε model and discrete phase model theory, the flow dynamics of the gas phase and gas-melt two-phase flow fields in the close-wake condition were investigated to establish the correlation between high gas pressure and powder particle characteristics. The locations of the recirculation zones and the shapes of Mach disks were analyzed in detail for the type of discrete-jet closed-coupled gas atomization nozzle. In the gas-phase flow field, the vortexes, closed to the Mach disk, are found to be a new deceleration method. In the two-phase flow field, the shape of Mach disk changes from "S"-shape to "Z"-shape under the impact of the droplet flow. As predicted by the wave model, with the elevation of gas pressure, the size of the particle is found to gradually decrease and its distribution becomes more concentrated. Simulation results were compliant with the Fe-based amorphous alloy powder preparation tests. This study deepens the understanding of the gas pressure impacting particle features via gas atomization, and contributes to technological applications.
Recent advances in synthesis strategies and solar-to-hydrogen evolution of 1T phase MS_2 (M = W, Mo) co-catalysts

Photocatalytic water splitting is a promising strategy to produce hydrogen as a sustainable and clean energy carrier, based on abundant solar energy and semiconductor photocatalysts, and it has received extensive research and discussion over the past several decades. It is challenging, however, to achieve an efficient solar-to-hydrogen evolution process with a single particulate photocatalyst due to the weak solar spectrum harvest and the rapid recombination of photogenerated electron-hole pairs during the photo-catalysis reaction. Combining semiconductors to create different co-catalysts presents a viable solution to the above issues. Recently, semiconductor photocatalysts modified by different transition metal sulfide-based co-catalysts with designed functions, especially in light absorption enhancement and charge-carrier-separation efficiency promotion, have attracted much attention. As continued breakthroughs have been made in the preparation, modification, and solar-to-hydrogen evolution application of the 1T phase MS_2 (M = W, Mo) co-catalyst-based photocatalysis system in recent years, we believe that a comprehensive review of this kind of co-catalyst would further promote its research and development to address the energy and environmental challenges that we are currently facing. Herein, recent studies and progress are summarized on the fabrication of 1T phase MS_2 (M = W, Mo)-based co-catalyst materials, as well as their roles and functional mechanisms for photocatalytic H_2 evolution. Finally, concluding perspectives on the opportunities in and challenges for the further exploration of the 1T-MS_2 (M = W, Mo)-based solar-to-hydrogen evolution system are presented.
Surface decoration of Halloysite nanotubes with POSS for fire-safe thermoplastic polyurethane nanocomposites

Halloysite nanotubes (HNTs) have been considered as a promising flame retardant fillers for polymers. In this work, the polyhedral oligomericsilsesquioxane (POSS) containing amino group was covalently grafted on the surface of HNTs with 3-(2,3-epoxypropoxy)propytrimethoxysilane as a chemical bridge. The POSS modified HNTs (HNTs-POSS) dispersed uniformly in the thermoplastic polyurethane (TPU) matrix and endowed TPU nanocomposites with enhanced tensile properties and fire safety. Cone calorimeter tests revealed that the introduction of 2 wt% HNTs-POSS to TPU matrix remarkably reduced the peak of heat release rate (PHRR) and total heat release (THR) by 60.0% and 18.3%, respectively. In addition, the peak CO production rate and total smoke release (TSR) could be significantly suppressed by the addition of HNTs-POSS. The well dispersed HNTs in combination with the ceramified silicon network from the thermal decomposition of POSS contributed to the formation of a continuous and compact char layer, exhibiting a tortuous effect by inhibiting heat diffusion and evaporation of volatile gaseous. In addition, the released crystal water from HNTs could dilute the combustible volatiles and then decline the combustion intensity. The tensile tests demonstrated that introduction of 2 wt% HNTs-POSS would enhance the maximum stress of TPU nanocomposite with a slight decrease of elongation at break. The combination of HNTs and POSS through the construction of effective interfacial interactions provides a feasible way to effectively enhance the fire safety of TPU nanocomposites without scarifying ductility.
Genesis of High Ba-Sr Yashan Intrusion from the Jiaodong Peninsula, Eastern China: Implications for the Destruction of the North China Craton

The origin of the Mesozoic high Ba-Sr(HBS) granitic magmatism in the Jiaodong Peninsula remains controversial in petrogenesis models and geodynamic settings. Here, we report zircon UPb age, trace element and oxygen isotope compositions, and whole-rock major-trace element and Sr-Nd isotope compositions of the HBS Yashan granodiorite. The zircon U-Pb age of ~118 Ma denotes that the Yashan granodiorite belongs to the Weideshan-stage magmatic activity, which is consistent with the age of Mo mineralization in the Yashan intrusion. The low Sr/Y(48.8-115) and high(La/Yb)_N(23.8-50.4) ratios of the Yashan granodiorite are analogous to adakitic features derived from the lower-crust. This is also supported by the whole-rock initial ~(87)Sr/~(86)Sr ratios(0.709 6-0.710 3) and zircon δ~(18)O values(6.79‰-8.03‰). Contemporaneous mantle-derived mafic microgranular enclaves indicate the involvement of the metasomatized lithospheric mantle. The high magma oxygen fugacity of the Yashan intrusion as indicated by high zircon Ce~(4+)/Ce~(3+) values suggests the involvement of plate subduction. The obviously lower Dy/Yb, La/Yb and Sr/Y ratios of magmatic rocks in the Weideshan-stage than those in the early-stage imply lithospheric thinning of the eastern North China Craton. We propose that the Yashan HBS granodiorite was formed by crust-mantle interactions during slab rollback.
Effect of the transcutaneous electrical stimulation system on esophageal-acid exposure in patients non-responsive to once-daily proton-pump inhibitor: proof-of-concept study

Background: Gastroesophageal reflux disease (GERD) is a common disorder. Overall, ≤35% of GERD patients fail the standard dose of proton-pump-inhibitor (PPI) treatment. Due to the high prevalence and low satisfaction rate with treatment failure, there is an unmet need for new treatment. Our aim was to evaluate whether the use of the transcutaneous electrical stimulation system (TESS) can reduce esophageal-acid exposure in GERD patients unresponsive to standard-dose PPI. Methods: We enrolled 10 patients suffering from heartburn and regurgitation with an abnormal esophageal-acid exposure (off PPIs) who failed standard-dose PPI. After the placement of a wireless esophageal pH capsule, all patients were treated with TESS. The primary end point was the reduction in the baseline (pretreatment) 24-hour percent total time pH <4 and/or DeMeester score by 50%. Results: Seven GERD patients (five females and two males, aged 49.3±10.1 years) completed the study. At baseline, the mean percent total time pH <4 was 12.0±4.9. Following TESS, the mean percent total time pH <4 dropped to 5.5±3.4, 4.5±2.6, 3.7±2.9, and 4.4±2.5 on Days 1, 2, 3, and 4, respectively. At baseline, the mean DeMeester score was 39.0±18.5. After TESS, the mean DeMeester score dropped to 15.8±9.2, 13.2±6.8, 11.2±9.4, and 12.0±6.8 on Days 1, 2, 3, and 4, respectively. Conclusion: TESS is a safe and potentially effective modality in reducing esophageal-acid exposure in GERD patients unresponsive to standard-dose PPI. A larger and prospective controlled study is needed to verify these preliminary results.
嗜铬细胞瘤和副神经节瘤的影像学

影像学在嗜铬细胞瘤(PCC)和副神经节瘤(PGL)的诊疗中起着至关重要的作用,常用于指导治疗。肿瘤相关易感基因的发现使人们对临床和影像学表型有了更好的了解。功能显像在PCC和PGL亚型中具有灵敏度和特异性优势,因此有着重要意义。目前已有几种靶向PCC和PGL特定受体和代谢过程的放射性药物被开发,包括~(131)I/123I-间碘苄胍、6-氟-18-L-3,4二羟基苯丙氨酸、~(18)F-FDG和68Ga-1,4,7,10-四氮杂环十二烷-1,4,7,10-四乙酸(DOTA)-生长抑素类似物,其中2种已被用于治疗。该文重点关注目前用于PCC和PGL的显像方法,这些方法因临床表型和基因表型而异。
基于冶金带钢生产线加工制造进度管理系统的研究

针对冶金带钢生产线加工制造过程中的实际需求,利用信息化的相关技术优势,以工程项目合同为依托,研究了一个冶金带钢生产线线加工制造进度管理系统。该加工制造进度管理系统对合同中的关键信息进行提取,然后与数据库构成连接,通过软件实现加工制造过程中设备的采购、生产进度管理等功能。对工程合同进行了有效的利用,也提高了加工制造进度管理的效率和实时性。
穴位埋线治疗肥胖型多囊卵巢综合征的临床应用及机制探讨

多囊卵巢综合征是育龄期女性常见的内分泌代谢疾病,其中有超过30%的患者合并肥胖。目前西医并无有效的治愈方案,以对症治疗为主。文章通过分析总结穴位埋线治疗肥胖型多囊卵巢综合征的相关研究文献,探析穴位埋线治疗本病的临床应用、诊疗思路及相关作用机制,以求为临床医生治疗肥胖型多囊卵巢综合征提供参考。
子宫内膜癌术后1年余,病情未控治疗后

此外,分子分型和MMR检测在子宫内膜癌的治疗中显示出了广阔的应用前景。推荐应用MMR免疫组化对子宫内膜癌患者进行普遍筛查。不仅因为其在识别Lynch综合征和相关癌症风险方面的重要性,而且在选择可能受益于免疫治疗和分子靶向治疗的患者方面具有重要意义。同时,MMR测定对于选择合适的手术路径也具有重要价值。
区域性创伤救治体系中郑州市“1小时创伤急救圈”模式初步探索

建设高效的区域性创伤救治体系是降低创伤患者病死率和致残率的重要措施。我国目前创伤救治工作中存在专科救治能力欠缺、医疗资源分配不均等问题,导致院前救治能力不足。为此,笔者以郑州中心医院创伤中心为核心救治单位,从空间上构建“1小时创伤急救圈",并结合所取得的初步成就,以此为模式开展创伤救治工作。笔者从建立郑州市“1小时创伤急救圈”模式所必需的时间空间要求、院前/院内创伤救治团队人员和硬件能力、信息化建设、创伤救治流程简化和创伤救治质量持续改进及核心能力培养等方面进行总结,为我国大型城市区域性创伤救治体系建设提供参考。
示指两平面撕脱性离断再植并去细胞同种异体神经(神桥)移植一例

2020年9月24日,对1例因机器挤压致左示指自近节和中节两平面撕脱性完全离断、指深屈肌腱自肌腹抽出、双侧指掌侧固有神经自近侧长段抽出的28岁青年女性,进行断指再植;术中指屈伸肌腱、双侧指掌侧固有神经、近节背侧软组织缺损,予旷置。术后予抗感染、抗凝、解痉等对症治疗,再植指体顺利成活。术后10 d予全厚皮片移植修复近节背侧软组织缺损,术后皮片成活良好,伤口一期愈合良好,无感染现象。再植术后1个月切取自体同侧掌长肌腱及去细胞同种异体神经修复材料(神桥)移植修复左示指屈、伸肌腱及双侧指掌侧固有神经手术治疗;术后切口愈合一期良好,无红肿、流脓等感染现象,无局部及全身过敏症状。术后通过门诊、微信等方式进行随访。术后7个月随访,再植指体无旋转,无成角畸形,外形良好,无明显萎缩,无感染、过敏症状;掌指关节活动度约85°,近侧指骨间关节活动度约40°,远侧指骨间关节活动范围约15°;近侧离断平面再植指体TPD为6~8 mm,远侧离断平面再植指体TPD为10~12 mm;复查左手正侧位片:左示指骨骼愈合良好;患指功能按中华医学会手外科学会断指再植功能评定试用标准评定为良。
游离腹股沟皮瓣修复小儿手部软组织缺损

目的探讨以旋髂浅动脉为血供的腹股沟皮瓣修复小儿手部软组织缺损的临床应用效果。方法2016年2月至2020年12月,共收治小儿手部软组织缺损患者19例,手掌部11例,手背部8例,年龄4~12岁,均伴有肌腱、骨骼外露。其中,猪草机绞伤11例,压砸伤8例。缺损面积3.5 cm×2.5 cm~7.5 cm×6.0 cm,皮瓣切取面积4.0 cm×3.0 cm~8.0 cm×6.5 cm。一期手术予以清创后,肉芽组织清洁干燥时,二期游离皮瓣修复,术后10例获得门诊随访,9例微信随访。结果19例顺利成活18例,1例术后出现血管危象,经手术探查后危象解除皮瓣成活。所有患儿均获随访,随访时间3~18个月,平均12.5个月,除1例修复手掌部出现色素沉着外,其余皮瓣外形美观,无明显臃肿,质地、弹性可,无挛缩、粘连等并发症。皮瓣供区可见线形瘢痕。结论游离以旋髂浅动脉为血供的腹股沟皮瓣,皮瓣易于解剖,切取时间短,皮肤延展性好,修复小儿手部软组织缺损具有较好的临床效果。
心脏记忆在心脏起搏领域的应用

心脏记忆指心室除极异常导致复极发生的适应性电重构现象,心电图上表现为异常除极终止后的T波方向仍与之前异常除极的QRS主波方向一致。心室起搏是心脏记忆最常见的诱因,但目前有关心室起搏与心脏记忆的研究较少,心脏记忆在右心室起搏、双室起搏及希浦系统起搏中的作用尚不明确。本文通过概述心脏记忆的机制和影响因素,介绍不同起搏术式产生的心脏记忆及其临床意义,对心脏记忆在起搏领域的应用前景进行展望,并指明这一领域未来研究的方向。
肉桂醛与柠檬醛抗曲霉菌作用机制的研究

曲霉菌是深部真菌感染的常见病原菌.由于真菌对现有临床使用药物具有抗药性以及药物存在不良反应,人们一直在寻找高效低毒的抗真菌药物.中药副作用小,来源广,价格低廉,较少出现耐药等,使研究开发抗真菌中药具备良好前景.目前对中药的抗真菌作用研究大多停留在从中药中分离抗真菌活性成分,对其机制较少涉及,特别是抗曲霉菌作用机制报道甚少.本研究采用扫描电镜及同位素标记技术,探讨具有良好抗曲霉菌作用的中药活性成分肉桂醛与柠檬醛的抗真菌机制,为开发和研制更理想的抗真菌药物提供有益的线索和理论依据.……
海洛因依赖者事件相关电位P300地形图的初步研究

目的观察海洛因依赖者事件相关电位P300地形图的变化.方法使用全数字化32导脑电图诊断仪对32例海洛因依赖者和30名正常人P300地形图进行12天前后对照观察.结果海洛因依赖者较正常人P300波形不稳、粗糙、变异性大,两次试验的潜伏期P3均明显延长(t=5.64,P＜0.001和t=5.78,P＜0.001),而且两次检测自身对比无差异(t=0.333,P＞0.05).其P300地形图的高能量由额区向中央区扩展,并向左右中颞区移动,顶区缺损,高功率明显降低(t=5.48,P＜0.001).结论海洛因依赖者P300地形图分布有其特点,提示依赖者脱毒期间存在认知功能障碍,与主动认知过程有关,临床上应高度重视.
大血小板比率测定及其对血小板计数的影响

对正常血小板组150例、低血小板组100例分别用手工法、ADVIA 120血液分析仪、Coulter-JT血液分析仪计数血小板和大血小板.结果:大血小板比率(P-LCR)的参考范围为0.5%～17.1%,低血小板组[(15.2±9.4)%]较正常血小板组[(9.1±4.3)%]显著增高(P＜0.05).正常血小板组3种方法检测无显著性差异(P＞0.05);低血小板组阻抗法与手工法比较有显著性差异(P＜0.05),二维激光散射法与手工法比较无显著性差异.表明不同实验室P-LCR的参考范围相差较大,大血小板可致阻抗法血液分析仪血小板计数假性偏低,ADVIA 120血细胞分析仪为检测血小板的较准确仪器.
尿液脱落细胞HER-2/neu基因扩增/17号染色体多倍体在尿路上皮癌诊治中的意义

我们采用荧光原位杂交法(FJSH)检测了尿液脱落细胞HER-2/neu基因扩增与17号染色体的数量变化,探讨了其在尿路上皮癌诊治中的意义.
D-乳酸在急性肠缺血早期诊断中的价值

我们通过对大鼠急性肠缺血模型血浆中D-乳酸(D-lactate)水平的检测,探讨其在急性肠缺血早期诊断中的价值.同时与肠缺血大鼠血清中β-葡糖苷酶(CBG),血清乳酸脱氢酶(LDH)及肌酸激酶(CK)的活性进行比较,并对肠黏膜的损伤程度进行评价.
云南麻烘罕的化学成分研究

麻烘罕Jatropha curcas L.是大戟科麻疯树属植物,云南傣、彝、壮族医生用其根、茎、叶的水煎剂治疗高血压病有明显的疗效,该植物大量野生于滇西、滇南沿江河谷沙滩,村寨路旁或栽培于农舍四周.经过对其最近20多年国内外关于药理毒理及临床资料的检索表明,麻烘罕根茎主要含有一些黄酮类、木脂素类、萜类、甾醇类化合物,其药理作用表现为多功能性,尤以调脂、降胆固醇、改善微循环、利尿降压及抗血小板聚集作用明显.此外,尼日利亚用麻烘罕提取物治疗糖尿病,疗效显著,苏丹用于治疗便秘,泰国、日本等进行了诱变性试验,结果显示该植物根茎提取物无致突变效应.……
灵龟八法配合循经取穴治疗顽固性头痛22例

笔者运用时辰针灸疗法(主要是灵龟八法)并根据病人头痛的部位循经取穴治疗顽固性头痛22例,取得较满意的疗效,现将治疗方法报道如下.
家族性震颤一家系临床调查分析

家族性震颤(Household Tremor HT)又称遗传性震颤,属原发性震颤(Essential Tremor ET),病情进展缓慢,为中枢性良性震颤.本病是一种少见的常染色体显性遗传性疾病,临床报道不多.常被误诊为帕金森病(Parkinson PD)、帕金森综合征(Parkinsonism PT)、肝豆状核变性、小脑疾病、甲状腺机能亢进及其它神经系统疾病等.笔者在临床工作中发现一家系五代9例HT患者,现报告分析如下.
高血压与心力衰竭

心力衰竭是一种复杂的临床症状群,是各种心脏病的严重阶段,具有很高的致残率及病死率.据美国Framingham的心脏研究发现,男性重度心力衰竭患者,2年内有37%的发生死亡,平均存活时间仅1.7年.高血压作为导致心力衰竭的一种重要的心血管疾病也备受重视,目前已从简单的治疗进入到以危险因素为基础控制的综合防治阶段,而对于心力衰竭的治疗也从单纯的改善血液动力学转向全面的交感神经控制.在临床的治疗上不仅注意了改善临床症状的急性治疗,更注重提高生存的慢性生物性治疗.以减少心力衰竭患者的再住院率及减低死亡率为目标的大型临床试验越来越多,并为我们临床预防及治疗心力衰竭提供了循证医学数据.WHO/ISH高血压防治指南中指出:能够影响心力衰竭预后的靶器官损害为:(1)左室肥厚(LVH).(2)动脉硬化斑块的超声学或放射学证据.(3)蛋白尿和(或)血浆肌酐的轻度升高.(4)肾动脉中央型狭窄,而高血压是导致这些靶器官损害的重要疾病.……
肿瘤根治术后肺动脉栓塞六例

本组共6例,其中男5例,女1例,年龄64～76岁,其中肺癌2例,食管癌、胃贲门癌、结肠癌及直肠癌各1例.4例有下肢静脉血栓或曲张病史.本组病例全部经术前病理确诊,术中证实,并行根治性切除.全组手术顺利,用时2.5～5.5 h,平均出血800 ml,术中术后生命体征平稳.
腹腔镜联合胃镜行胃部分切除术治疗胃Dieulafoy病一例

患者男性,42岁.因呕血、黑便4 d于2003年9月10日入院.呕血量约500 ml,鲜红色,伴成形黑便.既往无乙肝病史及溃疡病史等.查体:全身皮肤黏膜苍白.腹平软,中上腹轻压痛,无反跳痛,肝脾未触及,未扪及肿块,无移动性浊音,肠鸣音正常.肛门指检未触及肿块,指套可见柏油样便.血常规: Hb 61 g/L, 红细胞压积 0.184,WBC 4.4×109 g/L,血小板 184×109 g/L.胃镜检查见胃体中下段前壁黏膜一动脉断端隆起、出血,考虑为胃Dieulafoy病.以肾上腺素生理盐水喷洒止血,动脉出血停止.但患者于2003年9月14日再次呕鲜血400 ml,遂急诊行腹腔镜联合胃镜胃部分切除术.术中用胃镜确定出血点,并以胃镜光源标志出血部位.利用腹腔镜技术,以抓钳钳夹住出血部位,胃镜下确定出血点已被夹住.以出血点为中心,用直线型腔内切割缝合器切除病灶,同时完成缝合.手术顺利,术后2 d拔除胃管,下床活动.术后3 d能进半流质,术后5 d出院.病理检查报告:胃Dieulafoy病.
粒子诗抄(续八)

无题:苏汝铿(一)坛开水陆酒盈觞,饿蝇饕蚊鬼排场.著书谁知怜汗血,署名人自慕黄梁.鳌头未必千里马,骐尾宁余半日香?自从心胸涵漫远,雪飞炎海变清凉.
8例腹主动脉瘤合并胆囊结石患者的一期手术治疗分析

目的分析总结腹主动脉瘤合并胆囊结石一期外科手术治疗经验.方法回顾总结1995年至2002年间我科收治的60例肾动脉下腹主动脉瘤中8例(13.3%)合并胆囊结石的患者,采用先行腹主动脉瘤切除并行人造血管移植手术,然后紧密关闭后腹膜,将人造移植物与腹膜腔隔离后,行胆囊切除术,术后静脉给予广谱抗菌素预防感染.结果 8例患者术后均未发生与手术相关的出血、肺部感染、漏胆和移植物感染等并发症,经对症、支持和预防感染治疗痊愈出院.结论腹主动脉瘤合并胆囊结石采用一期外科手术并加强术中和术后预防感染措施是安全有效的治疗选择.
1例无孔处女膜的CT表现

患者,女,18岁,以下腹部包块就诊.病史:周期性下腹痛、腹胀伴便秘2年余,无恶心呕吐症状.查体:下腹部扪及拳头大小的肿物,质韧, 表面光整,活动(+).CT检查:下腹部见一柱状肿物,位于盆腔中线,边界清晰光滑,CT值为45HU,其内密度均匀,上至盆腔,下至盆底,其上方见大小为5cm×4cm略高密度影.双附件区未见占位病变(附图).诊断:腹盆腔占位性病变,结合病史,考虑无孔处女膜可能,不除外肿瘤.后行妇科检查及超声检查确诊为无孔处女膜.
头孢拉啶致小儿血尿2例

我院儿科于2002-01～2004-01收治2例使用头孢拉啶(哈药集团制药总厂,批号:HR302144,规格为每支0.5g)导致血尿患儿.年龄分别为2,4岁,体重分别为12,15kg,均有上呼吸道感染,静点头孢拉啶2.0g.……
岛津1250型X线机传片系统特殊故障1例

当机器在点片摄影时,机器的传片系统在上片准备过程及摄影曝光过程中工作均正常,曝光结束后,当胶片返回暗盒时,不能全部进入暗盒,此时传片电机停止运转,造成卡片,同时控制台显示面板出现错误报警.
医护人员SARS医院内感染因素配对病例对照研究

医护人员是SARS的高危人群[1,2].为寻找诊治、防护等行为因素中可能危险因素和保护因素,为修正预防控制措施指引提供科学依据,我们于2003年4～5月对广州市内5家医院参与了SARS患者诊治工作的部分感染和未感染的医护人员进行了调查.
医院职工乙型肝炎病毒感染的现状分析

医院是乙型肝炎(乙肝)传播的主要场所,为评估医院职工乙肝病毒(HBV)感染状况,2002年我们对全院1723名职工进行健康体检,现将其中乙肝表面抗原(HBsAg)、乙肝表面抗体( 抗-HBs)的检测资料分析报告如下.
老年透析病人血脂水平及相关因素分析

目的观察血透和腹透治疗对老年病人血脂的影响,并对相关因素进行探讨.方法血液透析治疗的尿毒症病人31例,CAPD治疗的尿毒症病人23例,正常对照组30例,分别检测开始透析时及透析后12个月时的血脂、血浆白蛋白、血肌酐(Scr).结果老年血透、腹透病人透析前TG、TC、LDL-C、ApoB、Lp(a)已明显增高,HDL-C、ApoA1明显降低(均P＜0.05);老年腹透病人12个月后与透析前比较,TC、TG、LDL-C均明显增高,HDL-C明显降低(均P＜0.05).透析12个月后腹透病人ApoA1及ApoB与透析前差异显著(均P＜0.01).两组病人透析前均有明显的低蛋白血症,透析后血浆白蛋白显著降低,腹透病人尤其显著;而且血浆白蛋白水平与血脂呈显著相关.结论老年透析病人透析前即存在血脂异常,透析治疗并不能消除高脂血症,甚至加重高脂血症,尤其以腹透病人明显.营养不良、低蛋白血症可能是透析病人高脂血症的主要致病因素.
以视力损害为主要表现的系统性红斑狼疮一例

系统性红斑狼疮(systemic lupus erythematosus,SLE)虽是以多系统、多器官损害伴多种自身抗体为特征的自身免疫性疾病,但在疾病的某一时期,可以某一器官或某一系统受累为突出表现.以视力损害为主要表现的SLE少见,现报道1例如下.
PAB竞价机制下发电商报价策略研究

在电力市场环境中，发电商选择报价策略并向交易中心投标。本文在PAB（pay-as-bid）竞价机制下，考虑到发电商的成本为私有信息，建立了不完全信息静态博弃模型，得到了发电商的最优报价策略。
中国的自杀现状及未来的工作方向

自杀是中国一个重要的公共卫生问题,严重影响社会和经济的发展.但人们只是最近才意识到这个问题的严重性,因此以社区为基础的自杀预防工作开展得很少.其他国家的经验表明自杀是可以预防的,也能显著减少自杀给家庭和社会所造成的负性影响,但实现这些目标需要政府许多部门和社会机构的通力合作.
我国电信资费改革探索

本文在对我国电信业引入竞争后的资费管制进行总结的基础上，认为现有的管制方式必须深化改革才能适应新形势；并对电信市场竞争状况进行了分析和判断，认为我国电信市场只是初步形成了竞争格局，这种状况与电信业企业制度不健全、法律框架不完善、市场竞争不充分密切相关，同时利用产业组织理论，对固话和移动的竞争进行了经济学分析；文章系统讨论了资费改革的思路，提出了资费改革与普遍服务、网间互联等政策的关系。
右肾上腺巨大囊肿一例

患者女,40岁.尿频、夜尿增多1年余,无尿痛及血尿.Bp:240/140 mmHg,中度贫血貌.体检:右中上腹部可扪及10cm×10cm大小的包块,右肾区叩击痛,双下肢凹陷性水肿.实验室检查无特殊.
硬膜外联合局部浸润阻滞治疗带状疱疹后严重瘙痒1例

患者,女,60岁,因"右颈部带状疱疹后瘙痒20天"以"带状疱疹后瘙痒"入院.20天前患者右颈部沿胸锁乳突肌至右耳后皮肤出现疱疹,经治疗后皮损治愈,但该处皮肤出现剧烈瘙痒,患者用小刀搔刮也不能止痒,寝食难安.瘙痒VAS评分为10分.……
癌痛的介入治疗

治疗癌痛的方法很多,对于大多数癌痛患者,采用药物治疗是首选.规范的药物治疗,特别是口服药物治疗,可以使大约80～90%的癌症患者的疼痛缓解.应按照癌症疼痛的性质和程度有针对性地为患者设定治疗方案,及时给与阿片类镇痛药物,并注意适当应用辅助药物.……
The Measures for Improving Development Effects of Zhanazhol Condensate Oil-Gas Field in Kazakhstan

Zhanazhol (Жанажол) condensate field, a big oil-gas field in western Kazakhstan, is discovered in 1978 and brought into development in 1983. This paper makes an analysis of the main factors affecting their development from geologic features and development characteristics, and puts forward the measures for improving development effects, such as enhancing water injection, keeping reasonable formation pressure; perfecting infill well patterns, improving producing reserves extent for maintaining a reasonable oil recovery rate; choosing reasonable thickness of avoiding water-conning and gas-channeling for remedial perforation to improve producing reservoir profile; making timely conversion of recovery process, augmenting producing pressure differential for stable production; adopting effective measures of production and injection stimulations for keeping higher productivity, and timely development of gas cap for best benefits. The effects of all such proposed measures have been proved by field practices.
加快农村剩余劳动力转移的对策选择

全面建设小康社会的重点和难点在农村,而解决农业问题的根本出路在于农村剩余劳动力的转移.剩余劳动力的转移是一个不容忽视的问题.本文着重分析了我国农村剩余劳动力的现状,进一步提出了加快农村剩余劳动力转移的有效途径.
Synthesis and crystal Structure of 2(1-Phenyl-3-methyl-5-chloro-1H-pyrazol-4-yl)-3-(1-naphthoylamido)-4-thiazolidinone

The crystal structure of 2(1-phenyl-3-methyl-5-chloro-1H-pyrazol-4-yl)-3-(1- naphthoylamido)-4-thiazolidinone (C24H19ClN4O2S,Mr=462.94) has been determined by single-crystal X-ray diffraction method.The crystal belongs to monoclinic,space group P21/c with a=11.623(5),b=11.579(5),c=16.619(7)A,β=90.112(8)°,V=2237(2) A3,Z=4,Dc=1.375g/cm3,R=0.294mm-1,F(000)=960,R=0.0492 and wR=0.0768 for 3932 unique reflections with 1897 observed ones (I>2σ(I)).X-ray analysis reveals that there exist both intra-and intermolecular hydrogen bonds in the crystal lattice.
妊娠晚期合并心衰患者剖宫产术的麻醉处理

晚期妊娠合并心衰,对孕妇的生命及胎儿的存活威胁极大,要在积极控制心衰的同时行剖宫产术.虽然现在手术技巧、麻醉及监测手段已有显著提高,但术中风险仍然很大.我院自1990年来共进行此类手术7例,母婴均康复出院,现报道如下.
可乐定复合布比卡因在小儿骶麻中的应用

可乐定作为α2肾上腺素受体激动药,具有强效的镇静、镇痛作用,其在小儿骶麻中的应用报道很少.现将我院2001年以来46例可乐定复合布比卡因在行下腹部手术(睾丸固定术)的患儿骶麻中应用情况,报告如下.
基于Java与XML的P2P应用开发

目前P2P技术逐渐得到了广泛应用.给出了一个带有发现和查找服务器的P2P应用模型,介绍了该模型的三个重要组成部分:服务器、监听器、浏览器.重点探讨了Java与XML在P2P程序开发中的应用.