mlsa-iai-msu-lab/ru_sci_bench_zho_cite_reranking huggingface dataset:
负压封闭引流两种不同负压值对糖尿病溃疡创面愈合的影响

目的探讨负压封闭引流两种不同负压值治疗糖尿病溃疡创面愈合的效果。方法采用随机数字表法对照分析,应用墙式中心负压封闭引流持续吸引,选择糖尿病溃疡创面患者82例分为两组:观察组42例,应用-300 mmHg负压持续吸引;对照组40例,应用-120 mmHg负压持续吸引,对比观察两组负压引流后前5 d每天平均创面引流量、体温,观察创面治疗期间、换引流物次数、创面清洁时间、创面愈合时间、并发症。结果两个不同负压组平均创面引流量比较差异有统计学意义(P<0.01);体温两组之间差异无统计学意义(P>0.05)。换引流物次数、创面清洁时间、愈合时间两组差异均有统计学意义(P<0.01)。结论负压封闭引流两种不同负压值治疗糖尿病溃疡创面,应用-300 mmHg压力可有效地减少创面引流量、换引流物次数、创面清洁时间,缩短愈合时间,促进创面愈合。
中医健脾通腑法联合快速康复外科在腹腔镜结直肠癌围手术期中的应用

目的探讨中医健脾通腑法联合快速康复外科(TCM+FTS)在腹腔镜结直肠癌根治术围手术期临床应用的安全性及可行性。方法将90例结直肠癌患者根据围手术期处理方案随机分为3组,28例采用常规围手术期处理方案行腹腔镜下手术(单纯手术组),29例采用快速康复外科处理方案行腹腔镜下手术(快速康复组,FTS),32例采用快速康复外科联合中医健脾通腑法处理方案行腹腔镜手术(中医健脾通腑组,FTS+TCM)。比较3组首次进食时间(流质),首次肛门排气时间、术后发生恶心呕吐及术后并发症发生率,白蛋白水平,住院时间及住院费用。结果 FTS+TCM组与另两组比较,术后首次肛门排气排便、进食时间明显缩短,差异有统计学意义(P<0.05)。不良反应及并发症较另两组低。住院时间及费用较另两组少,差异有统计学意义(P<0.05)。结论中医健脾通腑法联合快速康复外科指导下腹腔手术可加快结直肠癌患者围手术期胃肠功能的恢复,减少手术并发症的发生率,缩短住院时间、节省住院总费用。
阴道彩超引导下输卵管通液术检查输卵管通畅度的临床价值

目的探讨阴道彩超引导下输卵管通液术在不孕症患者中检查输卵管通畅度的临床应用价值。方法选择不孕患者461例,采用阴道彩超引导下输卵管通液术和腹腔镜检查术两种方法检查输卵管,分析两者检查输卵管的通畅度及病理改变的结果,以腹腔镜检查结果为参照标准统计通液术的符合率、灵敏度及特异度,评价阴道彩超引导下通液术的临床应用价值。结果通液术的总符合率为89.80%,灵敏度为98.83%,特异度为63.87%。其中输卵管通畅的符合率为95.00%,输卵管积水的符合率为93.67%,输卵管梗阻的符合率为87.87%,输卵管通而不畅的符合率为87.05%。结论阴道彩超引导下输卵管通液术操作简便,安全无创,准确性良好,可作为输卵管通畅度的首选检查方法。
滇白珠提取物对慢性阻塞性肺疾病大鼠核转录因子-κB和肿瘤坏死因子-α的影响

目的探讨滇白珠提取物对慢性阻塞性肺疾病(COPD)大鼠核转录因子-κB(NF-κB)、肿瘤坏死因子-α(TNF-α)的作用。方法健康清洁级SD雄性大鼠24只,随机分为正常对照组、模型组和药物干预组,每组8只。采用烟熏加气管内滴入脂多糖复制COPD模型,造模成功后利用滇白珠提取物进行干预,后观察各组肺组织的病理变化,并采用免疫组织化学方法及酶联免疫试验检测肺组织中NF-κB、TNF-α的表达情况。结果模型组NF-κB和TNF-α的活性分别为(1.83±0.22)ng/mL和(0.898±0.012)g/mL,其表达与正常对照组[(0.39±0.14)ng/mL和(0.123±0.024)ng/mL]比较,差异有统计学意义(P<0.05);药物干预组NF-κB和TNF-α的活性[(0.89±0.13)ng/mL和(0.470±0.008)ng/mL]与模型组比较,差异有统计学意义(P<0.05)。免疫组化结果显示,模型组的NF-κB和TNF-α表达分别为0.702±0.039和0.538±0.021,与正常对照组的0.189±0.002和0.003±0.008,药物干预组的0.328±0.026和0.284±0.013比较,差异均有统计学意义(P<0.05)。结论滇白珠提取物可降低肺组织中NF-κB、TNF-α的表达,对COPD的防治有一定的指导意义。
干燥综合征合并难治性免疫性血小板减少1例

该患者给我们的重要经验教训包括:治疗要有充分耐心,该病例CTX达4. 2 g时才渐见疗效,除非出现不能耐受的严重不良反应,不要频繁更换免疫抑制剂。除了不能准确评估药物的疗效,还造成患者严重心理及经济负担。还有激素的剂型也可根据疗效调整,如果MP效果欠佳,可以改用短效的氢化可的松或长效的地塞米松。总之,血小板减少治疗要根据病情采取适度的治疗,重视个体化方案。
纸片扩散法与微量肉汤稀释法检测鲍曼不动杆菌对替加环素体外敏感性的比较

目的比较微量肉汤稀释法和纸片扩散法对耐药饱曼不动杆菌替加环素敏感性试验检测结果。方法收集临床分离的非重复鲍曼不动杆菌42株,其中MDR菌株11株,XDR菌株31株,采用微量肉汤稀释法和纸片扩散法进行替加环素药物敏感性试验,比较检测结果的符合性。结果微量肉汤稀释法检测替加环素的敏感率、中介率和耐药率分别为97.6%、2.4%和0%,MIC_(50) 0.5μg/mL,MIC_(90) 2μg/mL。纸片扩散法药敏检测,不同药敏折点替加环素的敏感率从高到低依次为:Jones标准为28.6%,Kulah C标准为16.7%,FDA标准为2.4%,3种折点标准的中介率都很高,在45.2%~61.9%之间。与微量肉汤稀释法比较,不同药敏折点标准的总误差分别为Jones标准71.4%,Kulah C标准83.3%,FDA标准97.6%。以抑菌环直径≥12 mm作为敏感折点时总误差最小。结论耐药鲍曼不动杆菌的替加环素药敏检测中,纸片扩散法与微量肉汤稀释法之间存在差异,稀释法仍是首选检测手段,如只能行纸片法检测,建议以抑菌环直径≥12 mm判定为敏感。
葡萄糖-6-磷酸脱氢酶缺乏对红细胞溶血率的影响

目的了解人红细胞葡萄糖-6-磷酸脱氢酶(G6PD)的活性与氧化性损伤的关系,及对红细胞溶血率的影响。方法选择医院门诊血标本共267例,采用WHO推荐的Zinkham法进行G6PD活性测定,其中G6PD酶活的正常值范围为6.8~20.5 IU/gHb;酶活低于6.8 IU/gHb的为G6PD缺乏型。采用南京建成生物公司的测试盒测定丙二醛(MDA)、H_2O_2、过氧化氢酶(CAT)和谷胱甘肽(GSH),采用Habermann&Hardt法测定溶血率。结果随着G6PD的酶活的缺失,MDA、GSH和H_2O_2在血液中含量均降低,相反,CAT的活性升高。G6PD缺乏型红细胞更容易受H_2O_2氧化损伤;脱氢表雄酮(DHEA)处理的红细胞中,DHEA抑制了G6PD酶活,并使红细胞对H2O2氧化性损伤敏感性增加。结论 G6PD酶活的缺失使红细胞中的抗氧化能力降低,是影响红细胞氧化应激敏感性的主要原因。
高位复杂性肛瘘诊治难点及解剖特点分析

肛瘘是指直肠下端、肛管、肛门周围皮肤组织间形成的内外口相通的瘘管,其复发率10%左右。其中,高位复杂性肛瘘术后复发率高达50%,再次手术的失败率仍有10%。我院肛肠科从2008年1月至2010年10月收治高位复杂性肛瘘病例65例,现报告如下。
Synthesis and molecular modeling study of Cu(Ⅱ) complexes derived from 2-(diphenylmethylene)hydrazinecarbothioamide derivatives with cholinesterase inhibitory activities

Thiosemicarbazones of 2-amino-5-chlorobenzophenone and 3-aminobenzophenone(L~1-L~4) have been synthesized and their Cu(Ⅱ) complexes(1-4) were afforded via coordination with cupric chloride.All these compounds were characterized by UV-vis and IR spectroscopy together with CHN elemental analysis.NMR spectroscopy was also applied to characterize the ligands.In vitro chohnesterase inhibitory assays for the complexes(1-4) showed IC_(50) values less than 10μmol/L,with complex 1 exhibiting the most activity,IC_(50)=2.15μmol/L and 2.16μmol/L for AChE and BuChE,respectively. Molecular modeling simulation revealed the binding interaction template for complex 1 with the AChE and BuChE receptors.In DPPH assay,the complexes also showed more in vitro antioxidant activities in comparison to their parent ligands
Supramolecular assembly of Keggin polyoxomolybdate and 2,2'-bipyridine generated in situ from a decarboxylation coupling reaction

An assembly of Keggin polyoxomolybdate and organic substrate(Hbipy)_3[PMo_(12)O_(40)](1,bipy=2,2’-bipyridine) was synthesized and characterized by elemental analysis,infrared spectrum,and single-crystal X-ray analysis.The ligand bipy of compound 1 was generated by a decarboxylation coupling reaction of H_2pdc(H_2pdc=pyridine-2,6-dicarboxylic acid) in situ under hydrothermal reaction conditions and the control experiments illustrate that La(NO_3)_3 or Ce(NO_3)_3,which does not appear in the final structure,is necessary for the decarboxylation coupling reaction.Moreover,compound 1 displays strong photoluminescence property in the solid state at room temperature
Trimodel hierarchical yolk-shell porous materials TS-1@mesocarbon:Synthesis and catalytic application

Trimodal hierarchical yolk-shell materials consisting of TS-1 core and mesoporous carbon shell(YS-TS-1@MC) was successfully synthesized by using TS-1@mesosilica as hard template,sucrose as carbon source and organic base tetrapropylammonium hydroxide(TPAOH) as silica etching agent.The resultant YS-TS-1@MC contains the micropores(0.51 nm) in TS-1 core,the mesopores(2.9 nm) in carbon shell as well as a void or a stack pore between TS-1 fragcments(TS-1 intercrystal mesopores,~18.4 nm).Under the rigorous etching conditions,the crystalline structure of TS-1 core was well retained.The YS-TS-1@MC served as a good support for palladium nano-particles(Pd NPs) or Rh(OH)x species,giving rise to efficient bifunctional catalysts for the tandem reactions including one-pot synthesis of propylene oxide or amides
The temperature-dependent domains,SHG effect and piezoelectric coefficient of TGS

The temperature-dependent,second-order,nonlinear,optical coefficient(x~((2))).piezoelectric coefficient (d_(33)),pyroelectric coefficient(Ps) and domains on triglycine sulfate(TGS) reported herein provide a clue for us to investigate these as a typical second-order phase transition.The symmetry breaking occurrence is definitely confirmed by the temperature-dependent x~((2)) in which x~((2)) displays a limited value at the ferroelectric phase,indicating the space group(P2_1) chosen is correct,and when x~((2)) basically maintains a zero value at the paraelectric phase,indicating the space group should be centric.Interestingly,after normalization of x~((2)),d_(33) or Ps,the change trend with temperature is basically overlapped,probably abiding by Landau theory.Moreover,temperature-dependent domains directly show the symmetry breaking occurrence
分析二倍体与四倍体黄芩木质部及皮部中黄芩苷和汉黄芩苷的含量分布

目的:分析二倍体与四倍体黄芩木质部及皮部中黄芩苷和汉黄芩苷的含量。方法:采用高效液相色谱法。结果:二倍体黄芩木质部中黄芩苷及汉黄芩苷的含量分别为11.84%、3.13%,皮部分别为13.53%、3.53%,而四倍体黄芩木质部中黄芩苷及汉黄芩苷的含量分别为16.73%、5.24%,皮部则分别为22.28%、6.60%。四倍体黄芩在木质部两种成分较二倍体分别提高为41.30%、67.41%。结论:黄芩苷及汉黄芩苷在皮部均高于木质部,而且四倍体显著高于二倍体,具有开发价值。
鲜食糯玉米新品种金都糯1号特征特性及高产栽培技术

鲜食糯玉米新品种金都糯1号系贵州省兴义市吉丰种业有限责任公司于2007年用自育自交系JF糯88作母本,自育自交系JF糯075作父本组配选育而成。经品比试验、区域试验、生产试验,表现稳产、优质、多抗等特点,具有香、甜、嫩等风味,适宜蒸煮或烧烤,口感好,具有广阔的推广前景。
高产、优质、广适杂交玉米新品种贵农898的选育

贵农898是贵州大学玉米所用自选系P-162为母本,自选系S 6为父本杂交组配而成的玉米杂交种。该品种具有丰产、稳产、多抗、广适、熟期适中等优点。在贵州省玉米区域试验中,2年平均产量8 958 kg/hm~2,比对照黔单16增产7.82%,品质优良。该品种于2010年通过贵州省农作物品种审定委员会审定。
贵州两系杂交油菜制种研究进展

就贵州两系杂交油菜制种隔离区的选择与布局、栽培技术、母本结实率研究、可育株拔除技术等进行了综述,对隐性核不育两系杂交油菜制种的发展前景进行了分析,以期为两系杂交油菜制种的发展提供参考。
2001~2012年贵州省油菜区试品种产量及品质的变化趋势分析

根据2001~2012年贵州省油菜品种区域试验资料以及2005~2012年的国家冬油菜区域试验资料,对参试品种数量、产量、品质进行比较分析。结果表明:贵州省油菜区试参试品种的平均产量水平呈波动式增长,参试品种平均产量较对照增产2.61%,双低品种比例不断提高,2012年双低品种比例达到100%。贵州省油菜品种在贵州省区试中的平均含油量达41.33%,在国家区试中的平均含油量达44.07%,高于全国平均水平。
PICC置管长度测量方法的改进

目的提高PICC置管长度体外预测量的准确性,提高一次置管到位率。方法将250例行PICC置管的患者按随机数字表分为对照组和改进组各125例。对照组常规从穿刺点开始测量PICC导管置入长度;改进组从肘横纹处开始测量。比较两组测量导管长度的偏差度、偏差率及PICC置管到位率。结果改进组上述指标均显著优于对照组(均P<0.01)。结论从肘横纹开始测量PICC置入长度可减少测量误差,提高PICC置管的准确性及安全性。
中医护理研究型护士培养的实践

目的培养中医护理研究型护士,为中医护理发展提供科研型人才储备。方法依托医院优势专科,制定中医护理研究型护士遴选条件、岗位职责、工作内容,进行相关专业知识的培训,落实完善相关的考核和激励措施。结果目前12名研究型护士参与各个专业相关的临床科研课题,过程进展顺利,各层面的反馈良好。结论中医创新型研究型护士的培养实现可持续发展,将会为促进中医护理事业的发展不断注入新的活力。
重症监护室患者睡眠剥夺的集束护理干预策略

目的探讨重症监护室患者睡眠剥夺的集束护理干预策略,提高患者睡眠质量。方法将重症监护室有睡眠剥夺现象的患者326例按入住时间分为对照组160例和观察组166例。对照组给予常规护理及睡眠卫生宣教,观察组在此基础上,接受集束化护理干预,包括改善环境、加强护理人员培训、建立相对固定的作息制度、对病理生理因素的干预、提高患者应对水平。结果干预后观察组匹兹堡睡眠指数量表各维度分及总分显著低于对照组(均P<0.05)。结论对重症监护室患者采用集束化干预策略进行睡眠护理,可提高患者的睡眠质量。
双止水调节器在手术室输液排气中的应用

手术室患者输液过程中有时会因液体更换不及时有空气进入莫菲氏滴管以下输液管内,常规排除法有弹击法、分离输液管重新排气法、生理盐水注射器排出法、挤拉式排气及缠绕排气法等几种。但这些方法存在费时,可能导致污染,成功率不高,浪费药液等缺点。鉴此,笔者利用输液管的可塑性,运用手术室输液自身的双止水调节器能快捷排尽空气,于2011年3月至2012年2月用于临床83例次,均一次成功,介绍如下。
PDCA循环法在手术室外来器械追溯系统管理中的应用

目的探讨PDCA循环法在手术室外来器械追溯系统管理中的应用效果。方法将1 462件外来器械按时间段分为对照组(673件)和观察组(789件)。对照组采用常规外来器械管理流程进行管理,观察组采用PDCA循环法进行外来器械追溯管理。结果观察组器械有效验收率、清洗质量合格率、器械灭菌后湿包率、数量缺失率、术后器械去向明确率、术后器械遗失率与对照组比较,差异有统计学意义(均P>0.01)。结论运用PDCA循环法进行外来器械追溯系统管理可保障外来器械安全供应,降低医疗风险,保障患者安全,提高护理管理质量。
强直性脊柱炎患者行后路矫正术的复位护理

目的探讨强直性脊柱炎行后路矫正术中复位护理方法对手术矫正效果的影响。方法对21例手术患者由原先的体位架复位后,在两肩下加垫抬高上半身促使截骨面闭合改为:体位架复位后,抬高双下肢,使大腿处于过度后伸状态,促使骨盆前旋来闭合截骨面。结果21例患者手术时间3.3~4.6 h,出血量1 500~2 000 mL,无手术并发症;全脊柱最大后凸Cobb角平均矫正36.8°,腰椎前凸平均矫正44.3°,骨盆倾斜角平均矫正14.1°,骶骨倾斜角平均矫正13.4°;截骨面均按预期闭合,脊柱及骨盆接近生理状态。结论腰椎前凸的重建与骨盆矢状面形态改变密切相关,有效的复位护理在强直性脊柱炎后路矫正术中起到辅助矫正作用。
神经系统疾病患者医院感染调查分析

目的了解神经系统疾病患者医院感染发生现状,以便采取针对性的护理措施降低患者感染发生率。方法回顾性分析某医院2011年神经内科住院患者3 539例的病例资料,对患者医院感染发生情况、感染部位、常见的感染病原菌进行分析。结果3 539例患者中有36例发生医院感染,感染率为1.02%;在36例感染病例中排名前2位的疾病依次是脑卒中和重症肌无力;感染部位以下呼吸道为主,占82.50%,其次是血液感染,占7.50%;病原菌检查发现导致医院感染的菌群位列第1位是鲍曼不动杆菌,占19.51%。结论在神经内科疾病患者中,卒中患者最容易发生医院感染,这与多种因素有关;应采取相应的护理对策,以降低该类疾病医院感染发生率。
影像归档和通信系统协助早产儿异位PICC二次定位

目的避免早产儿PICC异位退管后行二次X线摄片定位。方法运用影像归档和通信系统(PACS)中影像处理的测量功能,测量46例PICC置入异位的导管尖端距理想位置的长度,根据测量的数字退出导管,再次行X线摄片定位导管并与预计位置比较。结果根据PACS测量长度退出导管,预计退管后导管尖端的位置和再次X线摄片定位导管尖端的位置一致。结论运用PACS可准确测量异位导管所需退出的长度,指导护理人员调整异位PICC尖端位置,避免新生儿接受二次X线照射。
实习护生反馈评价体系在护理管理中的应用

目的应用实习护生反馈评价体系评价病区实习护生带教与护理管理状况,找出相关工作的薄弱环节,明确努力方向。方法自行设计病区临床护理工作及临床带教管理状态调查表,对23名实习护生进行调查。结果临床带教问卷总分(52.65±3.77)分,出科操作考核与参与分管床位调查项得满分,护士长是否热心教学调查项得分最低;临床护理工作现状问卷总分(64.22±1.48)分;满分项目包括晨晚间护理、危重患者护理到位、患者安全措施落实、护士的工作行为及态度不受护士长在班与否的影响、护士长每日"四查"、正常开展业务学习、护理查房与危重患者讨论、病区管理状态等;最低得分项目是护工介入护士工作。结论采用实习护生反馈评价体系能客观反映病区实习护生带教与护理管理状况,对改进和提高病区护理、教学质量具有参考价值。
护理研究生导师实践角色自评量表的编制与信效度检验

目的编制护理专业研究生导师实践角色自评量表。方法根据角色理论框架构建量表,对深入访谈资料进行归纳并结合国内外相关研究生成条目,采用探索性因子分析发展量表结构,应用验证性因子分析检测量表结构。结果最终形成含有5个因子37个条目的正式版护理研究生导师实践角色自评量表,探索性因子分析结果显示5个因子量表结构解释了总变异的55.213%。量表的Cronbach'sα系数及分半系数分别为0.938、0.800。各因子的相关系数0.280~0.608,各因子与总量表的相关系数0.612~0.847。结论护理研究生导师实践角色自评量表效度和信度良好,可以应用于护理研究生导师实践角色的自我评价。
责任制护理模式患者医嘱执行单的改进与应用

目的优化医嘱执行单的使用流程,提高护理工作效率。方法经过多次专家论证和护士访谈,按照责任制护理模式设计和修订患者医嘱执行单。结果实施新患者医嘱执行单后,每个月平均节约纸张687.0张,节约成本约112.0元;护士满意度100%。结论改进后的患者医嘱执行单节约了护理时间,提高护士工作效率,保障了护理安全。
心理暗示在敏感多疑肿瘤患者护理中的应用

目的探讨心理暗示对敏感多疑肿瘤患者焦虑、抑郁的影响。方法对32例敏感多疑的肿瘤患者采取语言与非语言的措施进行心理暗示治疗及护理。结果干预后患者的焦虑及抑郁程度显著轻于干预前(均P<0.05)。结论暗示疗法能消除敏感多疑患者的不良心理,是促进患者心身健康、提高护理质量的重要心理护理措施。
基于关键知情人访谈与参与式观察的PICC置管前评估现况调查

目的了解上海市PICC置管前评估的开展现状及存在问题,为构建PICC置管前评估的临床实践指南提供现实依据。方法采用现象学研究法对19位PICC专业护士、1位某品牌PICC导管公司临床专员、2位临床医生进行关键知情人访谈,并对3所医院的PICC置管前评估实施过程进行参与式观察。结果22位访谈对象肯定了PICC置管前评估的重要意义,评估内容包括患者诊断与治疗、静脉条件等多个方面,同时存在评估不全、第一评估人非穿刺者时或产生隐患、尚无评估表等问题。结论PICC置管前评估可提高置管成功率、降低并发症发生率、帮助建立静脉输液决策,但需进一步改进以完善其临床应用。
乡镇卫生院消毒供应室现状调查及干预对策

目的了解乡镇卫生院的消毒供应管理现状,提出对策,以提高其管理水平。方法自行设计问卷,采取问卷调查与实地考察、抽样监测相结合的方法了解本地区46所乡镇卫生院的消毒供应室管理现状。结果调查中的42所乡镇卫生院消毒供应室存在管理不规范、设备设施简陋、未监测灭菌效果、未开展质量管理等问题。结论各乡镇卫生院消毒供应存在安全隐患,只有建设规范的消毒供应室或区域性消毒供应中心,全面提高消毒供应室质量管理水平,才能有效预防和控制医院感染,确保患者安全。
优质护理服务病区医护患对护理行为重要性评价的调查

目的了解优质护理服务病区医护患对护士护理行为重要性评价,探讨优质服务提供者、受益者、合作伙伴对不同护理行为的看法,持续推进优质护理服务提供参考。方法采用自行设计的问卷调查8个优质服务病区116例住院患者、110名护士、76位医生对护士护理行为重要性的评价。结果医护患三方对护理行为重要性总评及对技术操作规范、知晓患者病情和情绪等17项护理行为的重要性评价结果存在统计学差异(P<0.05,P<0.01)。结论医生更重视和认可护士执行医嘱、操作规范、提高护理业务水平,护士与医生的看法有一致性;患者更希望护士帮助其了解自己的病情、检查的结果、疾病的发展趋势,患者与医生、护士的看法存在差异。优质护理服务工作必须结合患者的实际需要和护理服务特点,服务标准要符合患者和合作者的期望。
Leaching process and kinetics of manganese in low-grade manganese ore

Manganese was extracted from leaching low-grade manganese ore in sulfuric acid medium. The effects of granule diameter, leaching time, liquid/solid ratio (V/W) and the concentration of sulfuric acid were investigated through orthogonal and single factor experiments. The experimental results showed that the optimal leaching conditions are, size of 0.054mm, 120 minutes of reaction time, 3(V/W) of liquid/solid ratio and 30% of the concentration of sulfuric acid (g/g). Under those conditions, the leaching efficiency is 96.73%. The kinetics of the leaching process is in accordance with the characteristics of fractal reaction.
REE concentrations of garnet and omphacite in eclogites from the Dabie Mountain, central China

Distributions of the rare-earth elements (REE) in omphacite and garnet and REE behaviors during metamorphic processes were discussed. The REE concentrations of garnet and omphacite in six eclogite samples from the Dabie Mountain, central China, were measured by inductively coupled plasma-mass spectrometry (ICP-MS). The correlation of δEu ratios between garnet and omphacite indicated that chemical equilibrium of REE distribution between garnet and omphacite could be achieved during ultra-high pressure (UHP) metamorphism. Most of the partition coefficients (K_d=C_i~(Omp)/C_i~(Grt)) of light rare-earth elements (LREE) are higher than 1. However the partition coefficients of heavy rare-earth elements (HREE) are lower than 1. This indicated that the LREE inclined to occupy site M2 in omphacite, but the HREEs tended to occupy eightfold coordinated site in garnet during the eclogite formation. The REE geochemistry of the eclogites indicated that LREE could be partially lost during the prograde metamorphic process of protolith, but be introduced into the rocks during the symplectite formation. LREE are more active than HREE during the UHP metamorphism. The results are favorable to highlighting the REE behavior and evolution of UHP metamorphic rocks.
双腔支气管导管插管位置与非通气侧肺呼出气二氧化碳波形的关系

目前国内研究呼出气二氧化碳监测判断双腔支气管导管(double lumen endobronchial tube,DLT)位置多为分析非通气侧呼出气二氧化碳波形变化,但对应用非通气侧呼出气二氧化碳波形判断双腔管位置的标准尚有争议。本研究按纤维支气管镜(fiberoptic bronchoscope,FOB)检查确认导管管端3种不同位置分析非通气侧呼出气二氧化碳波形的变化,旨在为临床麻醉中行呼出气二氧化碳监测判断DLT位置提供资料。
人工髋膝关节置换术后患者发生谵妄的原因分析及护理对策

术后谵妄(postoperative delirium,POD)是一种波动性意识功能障碍,包括认知功能下降、理解力下降等,多在术后2~3d发生,可持续几小时到数天。POD患者可出现明显的感知障碍、恐怖性幻觉、错觉,不能入睡,强烈的恐惧感等情感反应,导致患者依从性较低,术后康复时间明显增加,大大增加褥疮、感染、血栓等风险。本研究分析2010年1月至2011年7月在我科行髋膝关节置换术的681例患者发生术后谵妄的情况,现报告如下。
婴儿常见胃肠道症状的实用处理法则(二)

很多婴儿因为烦躁和腹部胀气而表现出痛苦的样子,但同时几乎所有这些婴儿都会经常哭闹,因而照护者更倾向于关注婴儿的哭闹而非其他症状或体征。因此,在这种情况下,完善病史信息非常关键。婴儿经常通过哭闹来沟通和表达自己。而哭闹可有多种原因:饥饿或希望得到关注,或者出现了严重的威胁生命的疾病。健康婴儿从出生后不久便开始哭闹,每天20 min 至3.5 h。
瞬时电刺激治疗脑卒中后软瘫的疗效观察

目的观察瞬时电刺激治疗脑卒中后软瘫的临床疗效.方法采用随机数字表法将89例脑卒中后偏瘫患者分为治疗组和对照组,治疗组45例,对照组44例.2组患者均给予内科药物和普通针刺治疗,同时进行常规神经康复训练,治疗组在此基础上辅以瞬时电刺激治疗.治疗4周后,采用改良Ashworth量表(MAS)对2组患者肱二头肌及股四头肌的肌张力进行评定,并比较2组患者肱二头肌和股四头肌肌张力达到Ashworth 2级所需的时间.结果治疗4周后,治疗组肱二头肌治疗总有效率(93.3%)高于对照组肱二头肌治疗总有效率(79.5%),差异有统计学意义(P<0.05);治疗组股四头肌治疗总有效率(95.6%)高于对照组股四头肌治疗总有效率(81.8%),差异有统计学意义(P<0.05);治疗组肱二头肌和股四头肌肌张力达到Ashworth 2级所需的时间分别为(10.15±4.36)d和(10.02±3.43)d,短于对照组肱二头肌和股四头肌的所需时间[(17.21±5.12)d和(16.86±4.23)d],差异有统计学意义(P<0.05).结论在内科药物治疗、普通针刺及常规神经康复训练的基础上辅以瞬时电刺激治疗,可明显促进脑卒中软瘫期患者的肌张力恢复,值得临床推广、使用.
中海达船载水上水下一体化三维移动测量系统

一、引言以海洋、河流、湖泊、水库等水体为代表的测量是陆海空天地一体化测绘体系的重要组成部分,相对于空天地测量而言,水域测量方面比较薄弱。因此,应大力发展海洋、河道测量技术,加快配备综合测量船,以便于其应用到数字水利、智慧航道、海洋海岛测绘等领域。通常,水域三维地理空间信息主要包括水上和水下两个部分。在采集方式方面,传统的航测遥感测量能够完成水上地形测量,而水下地形测量只能借助于水深测量方法; 在测量设备方面,水上主要借助于GPS 和RTK,水下则利用GPS 结合水深测量、旁扫声呐、多波束测深仪器等完成; 在效率和精度方面,采用水上、水下分开测量的方式一般效率低,同时基准难以统一。因此,搭建和研发基于船载平台的水上水下一体化测量系统成为目前亟待解决的问题。
基于CUDA的核线影像并行生成技术

在现场直播式地理空间信息服务体系要求的背景下,提出一种快速的核线影像并行生成技术,该技术采用基于CUDA的GPU—CPU协同处理方法,并充分考虑到GPU的并行结构和硬件特点。基于NVIDIA Quadro Fx580显卡对1500像素×2300像素大小的灰度图像进行试验,试验结果表明,相对于串行方法本文方法获得了优于10倍的加速比。
南方某大型医院晚期恶性肿瘤患者营养风险、营养不足和营养支持情况调查

晚期恶性肿瘤患者目前尚无有效的根治措施,只能通过手术、化疗、放疗等治疗手段延长患者的生存期,而患者死亡的常见原因之一是恶液质的出现,如何预防恶液质的出现,或者延迟其出现,对延长患者的生存期有一定作用.调查显示晚期恶性肿瘤患者30% ~ 85%出现恶液质,20%的患者直接死于恶液质.消化道肿瘤更容易出现恶液质,如胃癌、胰腺癌、食管癌、肠癌,胃癌尤其严重,约85%的胃癌患者出现恶液质.
Improvement of thermal environment and reduction of energy consumption for cooling and heating by retrofitting windows

Various techniques for creating a comfortable thermal environment and saving energy have been proposed and employed in residential buildings in many countries, including Japan. For these techniques to be introduced, existing houses should be renovated. Among the techniques available, installation of additional inner windows is effective in creating a comfortable and energy-efficient living environment. In the present research, the effect of additional inner windows on the thermal environment and energy saving was investigated by measuring indoor windows on the thermal environment and energy saving was investigated by measuring indoor concrete building. Air temperatures, the humidity, the global solar radiation on horizontal and vertical surfaces, radiant temperatures, and the electricity consumption of air-conditioners were measured. A comparison of these values before and after the installation of inner windows showed that the thermal environment and energy saving had improved. Results obtained from a thermal model agreed well with measured results by changing the value of solar transmittance and heat transmission coefficient of the glazing following renovation. Furthermore, in a questionnaire survey conducted in summer, more than half of the occupants answered "comfortable" to a question on the overall thermal comfort.
Strength, porosity, and chloride resistance of mortar using the combination of two kinds of pozzolanic materials

This article presents a study on the resistance to chloride penetration, corrosion, porosity, and strength of mortar containing fine fly ash (FA), ground rice husk-bark ash (RB), and ground bagasse ash (BA). Ordinary Portland cement (CT) was blended with a single pozzolan and two pozzolans. Strength, porosity, rapid chloride penetration, immersion, and corrosion tests were performed to characterize the mortar. Test results showed that the use of ternary blends of CT, FA, and RB or BA decreased the porosity of the mortar, as compared with binary blended mortar containing CT and RB or BA. The resistance to chloride penetration of the mortar improved substantially with partial replacement of CT with FA, RB, and BA. The use of ternary blends of CT, FA and RB or BA produced the mortar with good strength and resistance to chloride penetration. The resistance to chloride penetration was higher with an increase in the replacement level due to the reduced calcium hydroxide.
Solvent extraction and recovery of Y(III) and Yb(III) from fluorspar mineral

Yttrium and ytterbium were extracted from sulfuric acid medium using triphenylarsine (TPAs) dissolved in kerosene. The influence of different factors, such as shaking time, extractants, metal ions, sulfate ion concentrations, as well as temperature, was studied in detail. From the slope analysis method and IR measurements, the structure of the extracted species was suggested as MSO_4(HSO_4)·TPAs, where M refers to Y(III) or Yb(III). The equilibrium constants (K_(ex)) and thermodynamic parameters, such as the change in enthalpy (ΔH), free energy (ΔG), and entropy (ΔS), were calculated. The method of extraction and stripping was applied to obtain the aforementioned metals from a sample of fluorspar mineral giving a recovery yield of 88.2% and 83.5% for yttrium and ytterbium, respectively.
Amplification of in-plane seismic ground motion by group cavities in layered half-space (I)

Amplification of in-plane seismic ground motion by underground group cavities in layered half-space is studied both in frequency domain and time domain by using indirect boundary element method (IBEM), and the effect of cavity interval and spectrum of incident waves on the amplification are studied by numerical examples. It is shown that there may be large interaction between cavities, and group cavities with certain intervals may have significant amplification to seismic ground motion. The amplification of PGA (peak ground acceleration) and its PRS (peak response spectrum) can be increased up to 45.2% and 84.4%, for an example site in Tianjin, under the excitation of Taft wave and El Centro wave; and group cavities may also affect the spectra of the seismic ground motion. It is suggested that the effect of underground group cavities on design seismic ground motion should be considered.
Amplification of in-plane seismic ground motion by group cavities in layered half-space (II): with saturated poroelastic soil layers

As the continuation study on amplification of in-plane seismic ground motion by underground group cavities in layered half-space, this study extends to the case of poroelastic half-space with dry poroelastic and saturated poroelastic soil layers. The influence of poroelastic layers on the amplification of seismic ground motion is studied both in frequency domain and time domain using indirect boundary element method (IBEM). It is shown that for the example of a saturated poroelastic site in Tianjin under the excitation of Taft wave and El Centro wave, the amplification of seismic ground motion in poroelastic case is slightly smaller than that in the elastic case, and the amplification of PGA (peak ground acceleration) and its PRS (peak response spectrum) can be increased up to 38.8% and 64.6%; the predominant period of response spectra in poroelastic case becomes shorter to some extent compared with that in the elastic case. It is suggested that the effect of underground group cavities in poroelastic half-space on design seismic ground motion should be considered.
Determination of horizontal and vertical design spectra based on ground motion records at Lali tunnel, Iran

Most acceleration diagrams show high levels of unpredictability, as a result, it is the best to avoid using diagrams of earthquake acceleration spectra, even if the diagrams recorded at the site in question. In order to design earthquake resistant structures, we, instead, suggest constructing a design spectrum using a set of spectra that have common characteristics to the recorded acceleration diagrams at a particular site and smoothing the associated data. In this study, we conducted a time history analysis and determined a design spectrum for the region near the Lali tunnel in Southwestern Iran. We selected 13 specific ground motion records from the rock site to construct the design spectrum. To process the data, we first applied a base-line correction and then calculated the signal-to-noise ratio (R_(SN)) for each record. Next, we calculated the Fourier amplitude spectra of the acceleration pertaining to the signal window (1), and the Fourier amplitude spectra of the associated noise (2). After dividing each spectra by the square root of the selected window interval, they were divided by each other (1 divided by 2), in order to obtain the R SN ratio (filtering was also applied). In addition, all data were normalized to the peak ground acceleration (PGA). Next, the normalized vertical and horizontal responses and mean response spectrum (50%) and the mean plus-one standard deviation (84%) were calculated for all the selected ground motion records at 5% damping. Finally, the mean design spectrum and the mean plus-one standard deviation were plotted for the spectrums. The equation of the mean and the above-mean design spectrum at the Lali tunnel site are also provided, along with our observed conclusions.
The C-Terminal Hypervariable Domain Targets Arabidopsis ROP9 to the Invaginated Pollen Tube Plasma Membrane

The small GTPase ROPs are molecular switches in diverse developmental and cellular processes in plants (Yang, 2002). Based on their genomic organization, ROPs have been classified into two subgroups (Winge et al., 2000). Type I ROPs regulate the dynamic organization of the actin cytoskeleton, a tip-focused Ca2+-gradient, and the production of reactive oxygen species, thus playing essential roles in pollen tube growth presumably by integrating input signals into diverse output cellular activities (Nibau et al., 2006). The GTP-bound, active form of type I ROPs localize at the apical plasma membrane of pollen tubes to direct polar growth, while their GDP-bound, inactive forms are cytoplasmic (Yang, 2002). Localization of type I ROPs at the apical plasma membrane of pollen tubes is dynamically regulated by coordinated activities of their upstream regulators including guanine nucleotide exchange factors (RopGEFs), GTPase activating proteins (RopGAPs), and guanine nucleotide dissociation inhibitors (RhoGDIs) (Hwang et al., 2010).