mlsa-iai-msu-lab/ru_sci_bench_zho_cite_reranking huggingface dataset:
Achieving high throughput and TCP Reno fairness in delay-based TCP over large networks

The transport control protocol (TCP) has been widely used in wired and wireless Internet applications such as FTP, email and HTTP. Numerous congestion avoidance algorithms have been proposed to improve the performance of TCP in various scenarios, especially for high speed and wireless networks. Although different algorithms may achieve different performance improvements under different network conditions, designing a congestion algorithm that can perform well across a wide spectrum of network conditions remains a great challenge. Delay-based TCP has a potential to overcome above challenges. However, the unfairness problem of delay-based TCP with TCP Reno blocks widely the deployment of delay-based TCP over wide area networks. In this paper, we proposed a novel delay-based congestion control algorithm, named FAST-FIT, which could perform gracefully in both ultra high speed networks and wide area networks, as well as keep graceful fairness with widely deployed TCP Reno hosts. FAST-FIT uses queuing delay as a primary input for controlling TCP congestionwindow. Packet loss is used as a secondary signal to adaptively adjust parameters of primary control process. Theoretical analysis and experimental results show that the performance of the algorithm is significantly improved as compared to other state-of-the-art algorithms, while maintaining good fairness.
Unified power quality conditioner based on a three-level NPC inverter using fuzzy control techniques for all voltage disturbances compensation

This paper presents a novel and efficient control scheme for unified power quality conditioner(UPQC) based on three-level neutral point clamped (NPC) inverter using fuzzy logic techniques. The proposed UPQC is capable of mitigating source current harmonics and compensate all voltage disturbances such as voltage sags, swells, unbalances and harmonics. It is designed by the integration of series and shunt active filters (AFs) sharing a common DC bus capacitor. The DC voltage is maintained constant using proportional integral voltage controller. The synchronous reference frame (SRF) theory is used to get the reference signals for shunt active power filters (APFs) and the power reactive theory (p-q theory) for series APFs. The shunt and series APF reference signals derived from the control algorithm and sensed signals are injected in two controllers to generate switching signals. To improve the UPQC capability, fuzzy logic techniques are introduced to control the series APF. The performances of the proposed UPQC system are evaluated in terms of power factor correction, mitigation of voltage or current harmonics and all other voltage disturbances compensation using Matlab-Simulink software and SimPowerSystem toolbox. The simulation results illustrate the performance of the proposed UPQC at the common connection point of the nonlinear load to improve the power energy quality.
Heat transfer and fluid flow analysis of an artificially roughened solar air heater: a CFD based investigation

In this paper, the effect of rib (circular sectioned) spacing on average Nusselt number and friction factor in an artificially roughened solar air heater (duct aspect ratio, AR = 5:1) is studied by adopting the computational fluid dynamics (CFD) approach. Numerical solutions are obtained using commercial software ANSYS FLUENT v12.1. The computations based on the finite volume method with the semi-implicit method for pressure-linked equations (SIMPLE) algorithm have been conducted. Circular sectioned transverse ribs are applied at the underside of the top of the duct, i.e., on the absorber plate. The rib-height-to-hydraulic diameter ratio (e/D) is 0.042. The rib-pitch-to-rib-height (P/e) ratios studied are 7.14, 10.71, 14.29 and 17.86. For each rib spacing simulations are executed at six different relevant Reynolds numbers from 3800 to 18000. The thermo-hydraulic performance parameter for P/e = 10.71 is found to be the best for the investigated range of parameters at a Reynolds number of 15000.
Hip-mounted electromagnetic generator to harvest energy from human motion

A type of electromagnetic hip-mounted generator(EHG) is proposed to harvest energy from human hip motion to generate electricity. Based on the law of electromagnetic induction, the EHG generator can convert the kinetic power of the thigh swing into electrical energy during walking or running. To demonstrate the feasibility of the present method, a prototype of the EHG has been designed and fabricated. A theoretical analysis has been conducted to interpret the working behavior of this prototype. In addition, the performance of the system has been experimentally tested through a rotary motor and human body motion. When driven by the rotary motor at a rotation speed of 100 r/min, the open-circuit voltage of this prototype is 2.5 V. Further, a maximum open-circuit voltage of approximately 1 V and a maximum output power of 284 μW could be produced respectively when walking with an EHG at a speed of 1.47 m/s. This handy renewable energy technology is promising as a pervasive electricity generation system for a group of wearable or implanted sensors, actuators and mobile electronics.
Management of mantle cell leukemia with cardiac involvement leading to cardiogenic shock

Mantle cell lymphoma is an aggressive subtype of B cell non-Hodgkin lymphoma. It can progress to leukemic phase but frank leukemic picture at initial presentation is not common. Leukemic phase indicates advance stage of the disease and generally associated with extensive extra-nodal involvement. Pericardial invasion has been reported, however we could not find a report of myocardial infiltration by this disease since the appraisal of the term "mantle cell lymphoma" in 1992. Here we report a case of cardiac involvement by mantle cell leukemia leading to cardiogenic shock which complicates the treatment decisions.
Ecologically-friendly operation scheme for the Jinping cascaded reservoirs in the Yalongjiang River, China

Ecologically-friendly reservoir operation procedures aim to conserve key ecosystem properties in the rivers, while minimizing the sacrifice of socioeconomic interests. This study focused on the Jinping cascaded reservoirs as a case study. An optimization model was developed to explore a balance between the ecological flow requirement (EFR) of a target fish species (Schizothorax chongi) in the dewatered natural channel section, and annual power production. The EFR for the channel was determined by the Tennant method and a fish habitat model, respectively. The optimization model was solved by using an adaptive real-coded genetic algorithm. Several operation scenarios corresponding to the ecological flow series were evaluated using the optimization model. Through comparisons, an optimal operational scheme, which combines relatively low power production loss with a preferred ecological flow regime in the dewatered channel, is proposed for the cascaded reservoirs. Under the recommended scheme, the discharge into the Dahewan river reach in the dry season ranges from 36 to 50m3/s. This will enable at least 50% of the target fish habitats in the channel to be conserved, at a cost of only 2.5% annual power production loss. The study demonstrates that the use of EFRs is an efficient approach to the optimization of reservoir operation in an ecologically friendly way. Similar modeling, for other important fish species and ecosystem functions, supplemented by field validation of results, is needed in order to secure the long-term conservation of the affected river ecosystem.
Effects of climate fluctuations on runoff in the headwater region of the Kaidu River in northwestern China

The aim of this study was to analyze the effects of climate fluctuations on runoff in the headwater region of the Kaidu River in northwestern China. For this purpose, precipitation and potential evaporation (PET) data from 5 meteorological stations and the runoff depth data from the Dashankou hydrological station in the headwater region of the Kaidu River from 1960 to 2009 were collected, then the trends and abrupt changes of precipitation, PET and runoff depth were analyzed by means of Mann-Kendall test (M-K test) and Mann-Kendall-Sneyers test (M-K-S test), respectively. The runoff model driven by precipitation and PET was developed in this work and the sensitivity of runoff to climate fluctuation was simulated under different scenarios. Results showed that the annual precipitation and runoff depth both exhibited an increasing trend over the periods 1960-2009; however, this is not the case for the annual PET. The abrupt changes for annual precipitation, PET and runoff depth all occurred in the early 1990s. The established driving model could well reflect the complicated nonlinear relationship among runoff depth, precipitation and PET. The sensitivity analysis indicated that the precipitation had a positive effect on the runoff depth, opposite to what were observed between PET and runoff, and the runoff depth was more sensitive to precipitation than to PET in the headwater region of the Kaidu River.
2,5-Dialkoxylphenyl-1,3,4-oxadiazoles as efficient organogelators and their self-assembling property

Four 2,5-dialkoxylphenyl-1,3,4-oxadiazoles are shown to be efficient organogelators. These compounds readily form stable gels in many organic solvents and their gelation property as well as supramolecular structures were investigated by scanning electron microscopy (SEM), X-ray diffraction (XRD), 1H nuclear magnetic resonance (~1H NMR), and ultraviolet-visible spectroscopy (UV-vis). The results indicate that the gelator molecules self-assemble into gels with elongated fibrous networks and layer structures, and van der Waals interaction is the main driving force.
Mesozoic-Cenozoic extension of the Bohai Sea: contribution to the destruction of North China Craton

The Bohai Sea is a Late Mesozoic-Cenozoic feature of the basin-mountain system located in eastern North China Craton (NCC). The Late Mesozoic thinning of the lithosphere signals the early destruction of the NCC. The onset of the destruction was due to the delamination of thick lithosphere of the craton, represented by the NWtrending grabens in an en-echelon arrangement west to Tanlu Fault, and by the NNE-trending grabens within the Tanlu Fault Zone. The Late Mesozoic NW-trending grabens are overprinted by structures related to the Cenozoic NE-trending pull-apart basin with very thick Mesozoic-Cenozoic sediments in the eastern NCC. Cfrequency diagrams of growth faults and the extension factor (β) of four sections across the basin suggest that the extension migrated from the margin to the center of Bohai Sea, and that the Mesozoic and Cenozoic extension factors for Bohai Sea are higher than that of the margin. These evidences suggest that the greatest extension occurred in the center of Bohai Sea, which is consistent with the thinnest crust being found in the center of the sea. The extension ratios and tectonic evolution of the Bohai Sea suggest that it is the key region for the destruction of the NCC, as evidenced by the topography. However, the NCC experienced two stages of destruction with the late stage related to the tectonic regime of Northeast Asia.
Seismic retrofitting of RC columns with RC jackets and wing walls with different structural details

An original reinforced concrete (RC) column and four strengthened specimens, two with RC jackets and two with wing walls, were tested in this study. The original column specimen was designed to comply with older (pre-1999) design standards so that the usual detailing deficiencies in existing school buildings in Taiwan could be simulated. Two different structural details were chosen to fabricate the full-scale specimens for each retrofitting technique. The study confirmed that either RC jacketing or the installation of wing walls with two different structural details can effectively improve the stiffness and strength of an existing column. RC jacketing shows a better improvement in energy dissipation and ductility when compared to the columns with wing walls installed. This is because the two RC jacketed columns experienced a flexural failure, while a shear failure was found in the two columns with the wing walls installed, and thus led to a drastic decrease of the maximum lateral strengths and ductility. Since many factors may affect the installation of a post-installed anchor, it is better to use standard hooks to replace post-installed anchors in some specific points when using RC jacketing or installing wing walls.
Influence of earthquake direction on the seismic response of irregular plan RC frame buildings

The nonlinear response of structures is usually evaluated by considering two accelerograms acting simultaneously along the orthogonal directions. In this study, the influence of the earthquake direction on the seismic response of building structures is examined. Three multi-story RC buildings, representing a very common structural typology in Italy, are used as case studies for the evaluation. They are, respectively, a rectangular plan shape, an L plan shape and a rectangular plan shape with courtyard buildings. Nonlinear static and dynamic analyses are performed by considering different seismic levels, characterized by peak ground acceleration on stiff soil equal to 0.35 g, 0.25 g and 0.15 g. Nonlinear dynamic analyses are carried out by considering twelve different earthquake directions, and rotating the direction of both the orthogonal components by 30° for each analysis (from 0° to 330°). The survey is carried out on the L plan shape structure. The results show that the angle of the seismic input motion significantly influences the response of RC structures; the critical seismic angle, i.e., the incidence angle that produces the maximum demand, provides an increase of up to 37% in terms of both roof displacements and plastic hinge rotations.
Effect of seawater on incident plane P and SV waves at ocean bottom and engineering characteristics of offshore ground motion records off the coast of southern California, USA

The effect of seawater on vertical ground motions is studied via a theoretical method and then actual offshore ground motion records are analyzed using a statistical method. A theoretical analysis of the effect of seawater on incident plane P and SV waves at ocean bottom indicate that on one hand, the affected frequency range of vertical ground motions is prominent due to P wave resonance in the water layer if the impedance ratio between the seawater and the underlying medium is large, but it is greatly suppressed if the impedance ratio is small; on the other hand, for the ocean bottom interface model selected herein, vertical ground motions consisting of mostly P waves are more easily affected by seawater than those dominated by SV waves. The statistical analysis of engineering parameters of offshore ground motion records indicate that: (1) Under the influence of softer surface soil at the seafloor, both horizontal and vertical spectral accelerations of offshore motions are exaggerated at long period components, which leads to the peak spectral values moving to a longer period. (2) The spectral ratios (V/H) of offshore ground motions are much smaller than onshore ground motions near the P wave resonant frequencies in the water layer; and as the period becomes larger, the effect of seawater becomes smaller, which leads to a similar V/H at intermediate periods (near 2 s). These results are consistent with the conclusions of Boore and Smith (1999), but the V/H of offshore motion may be smaller than the onshore ground motions at longer periods (more than 5 s).
吗啡联合氯胺酮静脉泵入治疗晚期癌痛1例

癌性疼痛是影响晚期癌症患者生活质量的主要因素,特别是重度癌痛患者进入肿瘤终末期时不能配合口服药物止痛,使我们临床医生较为棘手。我科尝试性给予1例肺癌骨转移患者吗啡注射液联合氯胺酮静脉泵入止痛治疗,取得较好疗效,现报道如下.
甲状腺乳头状癌伴鳞状细胞癌及Warthin瘤形成1例报告

甲状腺乳头状癌、鳞状细胞癌及Warthin瘤3病共发同一病例较为罕见。华中科技大学同济医学院附属同济医院2012年12月收治1例甲状腺乳头状癌伴鳞状细胞癌及Warthin瘤形成病人,经治疗取得良好疗效。报告如下。
超选择性动脉栓塞术治疗医源性动脉出血的疗效及安全性

随着医疗技术的不断发展,各种微创治疗手段不断增多,经皮肾镜取石术、各种脏器穿剌活检等所致医源性出血也较以往增多。对于保守治疗效果欠佳的患者,超选择性动脉栓塞止血效果肯定,并能有效保全非病变动脉,具有创伤小、安全有效等优点,可作为医源性动脉出血的重要诊疗方法。本院收治的医源性动脉出血患者,采用超选择性动脉栓塞治疗,取得较好的临床效果,现报道如下。
Influence of phase and microstructure on the rate of hydrochloric acid leaching in pretreated Panzhihua ilmenite

The present study investigated the influence of high temperature oxidation and reduction pretreatments on the leaching rate of Panzhihua ilmenite. The as-pretreated ilmenite was leached with 20% HCl at 105 ℃. The leaching process was controlled by the phases and microstructures that evolved during the pretreatment processes. The leaching kinetics of pure hematite, ilmenite and pseudobrookite were characterized to clarify the phase effect on the iron-leaching rate ; the rate of iron leaching occurs in the following order in the HCl solution: hematite (ferric iron) > ilmenite (ferrous iron) >> pseudobrookite (ferric iron). Therefore, the often-cited notion that ferrous iron dissolves faster in HCl solutions than ferric iron when explaining the pretreatment effects is inaccurate. Moreover, the oxidation pretreatment (at 600-1000℃ for 4h) cannot destroy the dense structure of the Panzhihua ilmenite. Therefore, the influence exerted by the oxidation on the leaching process is primarily determined by the phase change; oxidation at 600 and 700 ℃ slightly increased the rate of iron leaching because the ilmenite was transformed into hematite, while the oxidation at 900-1000 ℃ significantly reduced the rate of iron leaching because a pseudobrookite phase formed. The reduction effect was subsequently investigated; the as-oxidized ilmenite was reduced under H_2 at 750 ℃ for 30 min. The reduction significantly accelerated the rate of subsequent iron leaching such that nearly all of the iron had dissolved after leaching for 2 h in 20% HCl at 105 ℃. This enhanced iron-leaching rate is mainly attributed to the cracks and holes that formed during the reduction process.
早期多次血液灌流对百草枯中毒患者预后的影响

百草枯又称对草快、克芜踪,是一种高毒性吡啶类除草剂,属于有机氮杂环类化合物,对人毒性较高,成人估计致死量约为20%水溶液5~15mL或40mg/kg。口服中毒患者如不及时治疗,可在短时间内死亡,病死率高达85%~95%。由于到目前为止百草枯中毒尚无特效解毒药,且常规治疗效果不佳,所以寻找一种较好的治疗方法至关重要。血液净化中的全血血液灌流(HP)可在中毒早期清除血液中部分毒素,使血液中毒素的浓度降低,是目前治疗该疾病较为有效的救治方法,对早期清除血液中的毒素及防治中毒急性期的多器官功能衰竭(MOF)和后期的肺纤维化及呼吸衰竭(呼衰)有一定作用,但能否降低中毒患者病死率临床报道不一。本研究回顾本院2009年3月至2013年8月收治的170例口服百草枯中毒患者的临床资料并进行分析,观察HP的时机及次数对百草枯中毒患者临床疗效的影响,现报告如下。
过继免疫细胞治疗预防肝癌肝移植术后复发的新思路探究

我国是肝病大国,也是全球原发性肝癌(肝癌)的第一大国。我省更是肝炎、终末期肝病、肝癌的重灾区,广东地区肝脏疾病发病率高达近20%,严重危害着民众的健康。肝细胞癌(hepatocellular carcinoma,HCC)是我国最常见的恶性肿瘤之一,其死亡率居恶性肿瘤死亡率的第2位,每年大约有11万人死于HCC,占全世界HCC死亡人数的45%。
男性犯罪青少年的河内塔与威斯康星卡片测验的对照研究

青少年犯罪是许多国家普遍存在的一种社会现象,它是困扰当今世界各国社会治安的突出问题。近10年来,国内社会学、心理学和医学界专家,对青少年犯罪成因研究较多。由于青少年暴力行为具有冲动性和情绪自控失效等特点,近年来人们较为关注这类行为在神经生物学方面的成因,与青少年神经发育密切相关的大脑执行功能即是研究的重点之一。执行功能是一种重要的高级认知能力,使个体能够有意图的计划和执行一项目标的功能,它包括计划、抑制、决策、认知灵活性、工作记忆和自我监控等方面。2008年,张福娟等从执行功能的主要成分出发研究了工读学校学生转换能力实验、“刷新”实验显示出他们的执行功能低于普通生[5-6]。有学者研究青少年的攻击行为与执行功能的关系,发现有攻击性的初中生的抑制控制能力、任务转换能力和信息刷新能力均差于非攻击性初中生。本研究尝试通过犯罪青少年与职高学生的执行功能进行对照研究,以揭示犯罪青少年的部分执行功能特点,为以后的相关研究提供一定的理论依据。
第五届血糖监测国际论坛纪要

由中华医学会糖尿病学分会血糖监测学组主办,上海市医学会、上海交通大学附属第六人民医院承办的“血糖监测学组年会暨第五届血糖监测国际论坛”于2013年12月13日至14日在上海召开,来自全国的300余名相关领域专家参加了本次论坛。会议开幕式上,中华医学会糖尿病学分会候任主任委员贾伟平教授、血糖监测学组组长陈莉明教授、上海市医学会常务副会长兼秘书长颜世洁教授分别致辞。继前四届论坛的主题分别为“信息改变认知”、“合纵连横全景观瞰"、“信息改变认知监测引领治疗”、“相时而应相得益彰”之后,本次论坛的主题是“格物致知汇聚共识”,寓意坚持尊崇求是的精神,探究事物的原理。论坛上来自加拿大的Ian Blumer教授和德国的Oliver Mast教授分别就血糖监测的国际进展及新技术应用情况做了精彩的报告。包玉倩、周翔海、潘柏申、李红、王椿、李延兵、马建华、王煜非、李强、高政南、匡洪宇、郑芬萍等教授就中国人糖化血红蛋白(HbAlc)诊断糖尿病的切点、HbAlc检测一致性、低血糖诊治流程现状、围手术期血糖管理、动态血糖监测与血糖波动等众多热点做了深入的分析。
不同产地黄蜀葵花中重金属含量分析

目的通过对不同产地不同批次的黄蜀葵花中重金属含量测定,对其安全性进行评价。方法采用ICP-AES电感耦合等离子体原子发射光谱仪法测定12个不同产地15批次黄蜀葵花中铅(Pb)、镉(Cd)、砷(As)、汞(Hg)、铜(Cu)含量。结果10个产地12个批次黄蜀葵花符合《药用植物及制剂进出口绿色行业标准》,3个批次显示镉超标。结论黄蜀葵花栽培产区应注意工业“三废”污染,加强重金属的监控。
从世界看中国:对运动障碍疾病研究现状的思考

随着基础研究和临床实践的进步,以帕金森病为代表的运动障碍疾病的研究近年来在国际上呈现出持续快速发展、不断更新的态势,对于一些长期困扰临床实践的问题,研究者们找到了关键性的基础实验证据来解答,一些获得公认的新型诊治方案和理念通过治疗指南的形式被推广和应用,一些具有时代标志的最新科技成果正通过医工(理)结合的方式被有机嫁接到研究方案中,形成了“基础研究中求创新、临床实践上立标准”,二者相互融合的局面。
阿尔茨海默病药物治疗靶点的研究进展

阿尔茨海默病(AD)是一种常见的神经系统退行性疾病,临床以进行性记忆障碍为突出表现。我国AD患者已超过500万。迄今为止,AD仍然没有有效的治疗方法,寻找有效的AD治疗药物是目前临床面临的严峻挑战。近年来针对AD不同病理环节治疗药物的研究表明,针对AD的多环节的多靶点联合治疗可更加有效控制AD的发病,本文将从?-淀粉样蛋白(A?)、微管相关蛋白tau、神经元缺失、早期诊断与干预四个方面概述AD治疗靶点的新进展。
王辰教授近年学术成果回顾

王辰教授是我国呼吸学科的领军者之一,长期从事呼吸疾病的防治与研究工作,是国家呼吸疾病临床医学研究中心主任,北京医院呼吸中心主任,首都医科大学呼吸病学系主任,北京呼吸疾病研究所副所长,兼任中华医学会呼吸病学分会主任委员。长期致力于解决呼吸疾病防治中的关键科技问题,现将王辰教授近年来的学术成果回顾如下。
建筑给水和消防给水中阀门压力选择探讨

通过比较现行设计规范和验收规范中对建筑给水和消防给水系统的试压要求,以及分析系统中阀门产品须进行的强度试验压力、密闭试验压力的规定和阀门工作压力的选择,提出建筑给水和消防给水系统中管道阀门工作压力应满足系统工作压力和试验压力的要求。
二次顶管法在小口径排水管道敷设中的应用

针对小口径排水管道敷设中不宜釆用开挖施工和拖拉管施工的问题,提出采用二次顶管法。介绍了二次顶管法的工作原理、施工工序和流程,对比分析了二次顶管法与开挖施工和拖拉管施工的特点。并以中山市城区雨污分流工程中沙朗片区市政管道敷设工程为例,介绍了二次顶管法在小口径排水管道敷设中的应用。
腹膜后恶性淋巴瘤的超声表现1例

腹膜后淋巴瘤发生率占全身淋巴瘤的2%左右。在超声图像上表现为腹主动脉旁、髂血管旁大小不等的低回声结节,多个结节融合时可形成数厘米的包块,肿块巨大时可挤压腹膜后大血管。在包块内仍可见多个较低回声的肿大淋巴结融合而成的“铺路石”表现。据此可与转移性淋巴结融合包块相鉴别。
苏丹红致小鼠氧化损伤的研究

目的探讨苏丹红(SD)对小鼠肝脏和肾脏功能的影响。方法小鼠连续腹腔注射不同剂量SDI、Ⅱ、Ⅲ、IV(0、40、80和160 mg/kg) 12 d,然后采用TBA和ELISA法分别检测小鼠肝脏和肾脏组织丙二醛(MDA)含量和超氧化物歧化酶(SOD)活力。结果低剂量SD Ⅱ和SD Ⅲ组肝脏MDA含量明显高于对照组和SD I及SD IV组,高和中剂量4种SD组MDA值也明显高于对照组,但中剂量SD组之间差异无统计学意义;低剂量SD I和高剂量4种SD组肾脏MDA值比对照组显著提高,其中高剂量SD Ⅱ组与其他3组比较差异有统计学意义,中剂量除SD Ⅱ组其他3种SD组MDA值也明显增加。与对照组比较,低剂量4种SD组和中剂量SD I组肝脏SOD明显增加,但高剂量4种SD组与对照组差异无统计学意义;3种剂量SD Ⅱ和SD Ⅲ组肾脏SOD明显提高,而SD IV组肾脏SOD活性显著降低。结论结果表明SD I、Ⅱ、Ⅲ、Ⅳ致小鼠肝脏和肾组织不同程度的损伤。
口服替吉奥同期静脉输入替加氟致重度不良反应胃癌患者1例的护理

胃癌指原发于胃的贲门到幽门间的恶性上皮性肿瘤,是最常见的恶性肿瘤之一,在我国农村,胃癌病死率居恶性肿瘤的第1位~([1])。目前美国国家癌症综合网络(NCCN)已推荐ⅢA和部分IV期(M0)胃癌根治术后常规应用放疗+ 5-氟尿嘧啶为主的同步化疗~([1])。我科收治1例胃癌患者,口服替吉奥同期静脉输入替加氟,出现皮肤黏膜黑紫、口腔溃烂、洗肉水样大便和IV度骨髓抑制,经过精心的治疗和护理后患者病情稳定,顺利出院,现报告如下。
简易乳房按摩操预防剖宫产产妇乳房胀痛效果观察

目的探讨简易乳房按摩操预防剖宫产产妇乳房胀痛的效果。方法将50例剖宫产产妇按住院日期单双号分为观察组和对照组各25例,对照组给予常规母乳喂养指导,协助早吸吮、按需哺乳,指导哺乳姿势。观察组在常规母乳喂养指导基础上,由研究者于产后第1天开始指导产妇进行简易乳房按摩操,直至产妇出院,每次10?15 min,每天2次;出院后产妇自行在家完成。结果观察组产后3 d乳汁淤积程度显著轻于对照组(P<0. 01);两组乳房胀痛评分比较,干预效应、时间效应、交互效应均P<0. 01。结论简易乳房按摩操可有效减轻乳汁淤积程度及降低乳房胀痛。
脊髓水平给予胍丁胺对鞘内吗啡镇痛的影响

目的:观察脊髓水平给予胍丁胺对鞘内吗啡镇痛作用的影响。方法:30只SD大鼠随机分为3组(n = 10):C_1组:鞘内注射生理盐水(10 μI);M_1组:鞘内注射吗啡(15 μg/10μI);AM_1组:鞘内同时给予吗啡15 μg +胍丁胺12.5 μg/10 μl。所有大鼠均于鞘内给药后5 min于跖部皮下注射蜜蜂毒50 μl (0.2 mg)致痛,观察并纪录1 h内大鼠的自发缩足反射次数。另30只SD大鼠分组为C_2,M_2和AM_2(n = 10),每组给药分别同前,用来测定机械痛阈和热刺激阈值。结果:与C_1组比较,M_1组1 h内大鼠的自发缩足反射次数显著减少,提示鞘内注射吗啡对蜜蜂毒诱致的自发痛具有显著性抑制作用(P<0.05);鞘内同时给予吗啡和胍丁胺(AM_1 组),大鼠自发缩足反射次数进一步减少,与M_1组比较具有显著性意义(P<0.05)。与对照组C_2组比较,M_2组大鼠的热刺激阈值和机械性痛阈明显提高;AM_2组热刺激潜伏期显著延长,机械刺激阈值显著提高;AM_2组与M_2组比较热刺激潜伏期和机械刺激阈值有统计学差异(P<0.05)。结论:鞘内胍丁胺和吗啡联合用药可显著增强吗啡对蜜蜂毒诱致自发痛的抑制作用,具有加强效应。
头皮管状大汗腺腺瘤1例

组织病理上,本病需要与来源于汗腺的其他肿瘤鉴别:乳头状汗管囊腺瘤:当管状大汗腺腺瘤与表皮相连时,可类似乳头状汗管囊腺瘤,但后者表皮呈不同程度的乳头瘤样增生或内陷,病变中央可见表浅的有上皮覆盖的乳头结构,乳头突起处有纤维血管提供营养,有相当多的浆细胞浸润.
关节病性银屑病并发蛎壳状银屑病1例

寻常性银屑病是临床上最多见的一种类型,在其发展过程中,皮损状态可有多种表现,而砺壳状银屑病(psoriasis rupioides)是其中比较少见的一种类型,其特征是皮损干燥后形成污褐色鳞屑痂,并重叠堆积,状如蛎壳,故而得名。本例患者依据临床表现结合组织病理学检查,诊断可确定。
Fuzzy finite difference method for heat conduction analysis with uncertain parameters

A new numerical technique named as fuzzy finite difference method is proposed to solve the heat conduction problems with fuzzy uncertainties in both the physical parameters and initial/boundary conditions.In virtue of the level-cut method,the difference discrete equations with fuzzy parameters are equivalently transformed into groups of interval equations.New stability analysis theory suited to fuzzy difference schemes is developed.Based on the parameter perturbationmethod,the interval ranges of the uncertain temperature field can be approximately predicted.Subsequently,fuzzy solutions to the original difference equations are obtained by the fuzzy resolution theorem.Two numerical examplesaregivento demonstratethefeasibilityandefficiency of the presented method for solving both steady-state and transient heat conduction problems.
“可能切除的胰腺癌”新辅助治疗研究进展

胰腺癌在美国肿瘤相关死亡中居第4位,在我国居第7位,5年生存率低于5%。仅有15%~20%的患者为可切除胰腺癌,通过手术达到R0切除(肿瘤切缘阴性)后,5年生存率为15%~20%。随着外科学的发展,约有1/3的局部进展期胰腺癌从不可切除胰腺癌中被分离出来,称为“可能切除(borderline resectable)的胰腺癌”。新辅助治疗可使这部分患者的肿瘤进展停滞甚至降期,从而提高肿瘤切缘阴性率,延长生存时间。本文对“可能切除的胰腺癌”的新辅助治疗进展作一综述,以期提高临床医师对“可能切除的胰腺癌”新辅助治疗的重视。
Ommaya囊在神经外科中的应用观察

Ommaya囊最初是应用于颅咽管瘤瘤内化疗的一种装置,通过向脑室或囊性肿瘤内直接注药达到治疗的目的。近年来,临床上Ommaya囊的应用范围逐渐扩大。本研究总结了江苏省太仓市第一人民医院外科自2008年6月在脑室出血、脑积水,颅内感染、硬膜下积液等多种疾病中采取Ommaya囊置人术治疗,取得了较好的疗效,现总结报道如下。
骨髓增生异常综合征小鼠模型的研究进展

造血干/祖细胞(HSPC)突变与骨髓增生异常综合征(MDS)的发生和发展密切相关。MDS伴有多种细胞遗传学和分子缺陷,这导致MDS高度的异质性。由于MDS 的异质性,没有一个单一的模型能够从整体上模拟MDS的表型。动物模型是模拟和研究人类疾病的有效工具和有用的临床前实验平台。因此,建立MDS小鼠模型对研究其发病机制、治疗和预后等至关重要。