谈加速档案网络建设

因特网（Internet）作为未来信息高速公路的雏形，现已成为世界上规模最大、用户最多、影响最广的计算机互联网络。为了满足信息化社会人们对档案信息“广、快、精、准”的要求，档案管理必将朝着信息化、数字化、网络化方向发展。     

常村矿N3-3掘进工作面通风风量计算及局扇选型

为了保障井下工作面作业人员的身体健康和劳动安全,对常村矿N3—3掘进工作面风量分别按瓦斯涌出量、工作面人数、风速、局部通风机供风量及最小全压进行了计算,确定了工作面采用两台功率为45Kw的FBDN07．2型通风杌,并安设合适的局扇管理牌板．出风口距工作面不大于12m,风筒出风口必须上风筒圈,从而保证掘进巷道通风系统的正常运行,以达到安全生产的目的。     

伏立康唑治疗侵袭性肺真菌病12例临床观察

应用伏立康唑治疗的12例侵袭性肺真菌病,观察疗效及不良反应。12例患者中有效8例,其中完全反应5例,部分反应3例。2例出现视力模糊,2例出现转氨酶升高,1例用药时出现轻微的头晕,后自行缓解。结果表明,伏立康唑是治疗侵袭性肺真菌病高效及安全药物。     

一种智能化NO输送系统的研制

为了满足临床吸入一氧化氮（NO）治疗安全与可靠的要求,研制一种和呼吸机同步的一氧化氮吸入装置是至关重要的．该装置使用气体流量计（GFM）检测呼吸机的吸气流量,通过气体稀释公式计算出在治疗条件下NO标气的流量,并由质量流量控制器（MFC）来控制NO标气送往呼吸回路,同时采用NO／NO2电化学传感器对进入人体前的治疗气中NO浓度和二氧化氮（NO2）浓度进行监测．试验结果表明：该一氧化氮吸入装置供N0标气相对于呼吸机供气滞后不到200ms,NO气体的用量相对于持续供气时节约了E／（I＋E）（吸呼比：I：E）、NO2的生成量〈2mg／L,从而不仅实现了监测与配气的智能化,而且也提高了NO治疗气精度、确保了治疗的可靠性与安全性．     

基于 3D FPN 的肺结节检测

肺癌早期发现与诊断对提高肺癌患者生存率至关重要。肺癌主要是由恶性肺结节造成的,通过肺结节早期检测与诊断能够及时发现病情,显著提高肺癌存活率。随着深度学习网络在医学辅助诊断领域应用的迅速发展,现已有很多深度网络被应用于肺结节检测。通过统计检测目标肺结节半径分布情况,发现大部分肺结节半径较小。因此,结合 CT 影像数据的三维特性,提出使用 3D FPN 进行单阶段肺结节检测,能够解决肺小结节检测效果不佳的问题。在公用肺结节数据集 LUNA16 上验证了网络的有效性,CPM 值达到 0.893 2,相比其它肺结节检测网络,检测效果提高了 2%。     

The influence of a 6.5% carbohydrate-electrolyte solution on performance of prolonged intermittent high-intensity running at 30°C

Nine male student games players consumed either flavoured water (0.1 g carbohydrate, Na⁺ 6 mmol · l^?1), a solution containing 6.5% carbohydrate-electrolytes (6.5 g carbohydrate, Na⁺ 21 mmol · l^?1) or a taste placebo (Na⁺ 2 mmol · l^?1) during an intermittent shuttle test performed on three separate occasions at an ambient temperature of 30°C (dry bulb). The test involved five 15-min sets of repeated cycles of walking and variable speed running, each separated by a 4-min rest (part A of the test), followed by 60 s run/60 s rest until exhaustion (part B of the test). The participants drank 6.5 ml · kg^?1 of fluid as a bolus just before exercise and thereafter 4.5 ml · kg^?1 during every exercise set and rest period (19 min). There was a trial order effect. The total distance completed by the participants was greater in trial 3 (8441 ± 873 m) than in trial 1 (6839 ± 512, P < 0.05). This represented a 19% improvement in exercise capacity. However, the trials were performed in a random counterbalanced order and the participants completed 8634 ± 653 m, 7786 ± 741 m and 7099 ± 647 m in the flavoured water (FW), placebo (P) and carbohydrate-electrolyte (CE) trials, respectively (P = 0.08). Sprint performance was not different between the trials but was impaired over time (FW vs P vs CE: set 1, 2.41 ± 0.02 vs 2.39 ± 0.03 vs 2.39 ± 0.03 s; end set, 2.46 ± 0.03 vs 2.47 ± 0.03 vs 2.47 ± 0.02 s; main

effect time, P < 0.01). The rate of rise in rectal temperature was greater in the carbohydrate-electrolyte trial (rise in rectal temperature/duration of trial, °C · h^?1; FW vs CE, P < 0.05; P vs CE, N.S.). Blood glucose concentrations were higher in the carbohydrate-electrolyte than in the other two trials (FW vs P vs CE: rest, 4.4 ± 0.1 vs 4.3 ± 0.1 vs 4.2 ± 0.1 mmol · l^?1; end of exercise, 5.4 ± 0.3 vs 6.4 ± 0.6 vs 7.2 ± 0.5 mmol · l^?1; main effect trial, P < 0.05; main effect time, P < 0.01). Plasma free fatty acid concentrations at the end of exercise were lower in the carbohydrate-electrolyte trial than in the other two trials (FW vs P vs CE: 0.57 ± 0.08 vs 0.53 ± 0.11 vs 0.29 ± 0.04 mmol · l^?1; interaction, P < 0.01). The correlation between the rate of rise in rectal temperature (°C · h^?1) and the distance completed was ?0.91, ?0.92 and ?0.96 in the flavoured water, placebo and carbohydrate-electrolyte conditions, respectively (P < 0.01). Heart rate, blood pressure, plasma ammonia, blood lactate, plasma volume and rate of perceived exertion were not different between the three fluid trials. Although drinking the carbohydrate-electrolyte solution induced greater metabolic changes than the flavoured water and placebo solutions, it is unlikely that in these unacclimated males carbohydrate availability was a limiting factor in the performance of intermittent running in hot environmental conditions.     

高原训练对残疾田径运动员肺通气功能的影响

通过对北京市残疾田径运动员在云南昆明进行为期五周的高原训练进行跟踪,观察运动员在平原—高原—平原交叉环境下肺功能的变化规律,分别对MVV、VC、FVC、FEV1%、PEF、PEF25～75%用力肺活量平均呼吸流速各指标进行测试。结果显示:高原残疾田径运动员训练后肺功能各指标有明显上升,高原训练有利于残疾田径运动员肺通气功能的提高。     

Effects of Ventilation on Segmental Bioimpedance Spectroscopy Measures Using Generalizability Theory

The purpose of this study was to examine the effect of three ventilation conditions (i.e., normal, regimented, and no-ventilation) on the reproducibility of bioimpedance scores in humans for the forearm and trunk segments. One hundred able-bodied North American men and women, from 18 to 71 years of age, volunteered as participants. The experimenters used a Xitron Bio-Impedance Analyzer System model 4200 instrument with Hydra software (Xitron Technologies, San Diego, California, USA) to collect bioimpedance data on extracellular fluid and intracellular fluid scores. The experimenters analyzed the data using the generalizability theory,with persons as the facet of differentiation and time as the facet of generalization. The major findings were (a) ventilation conditions did not have a significant impact on the reproducibility of the test scores, (b) the forearm segment produced consistently higher intracellular fluid generalizability coefficients across three ventilation conditions for both gender groups when compared to the trunk segment, (c) the trunk segment produced intracellular fluid generalizability coefficients that were higher for the male group, and (d) the measurement error affected extracellular fluid scores less than segmental intracellular fluid scores.     

参芪扶正注射液对慢性肺心病患者血液流变学的影响

目的:观察参芪扶正注射液对慢性肺原性心脏病(以下简称肺心病)患者血液流变学的影响.方法:将74例慢性肺心病急性加重期患者随机分为A、B两组.A组(36例)在常规治疗的基础上加用参芪扶正注射液,B组(38例)仅给予常规治疗.两组均连续用药2周.治疗前后对血液流变学相关指标进行检测与对比观察.结果:患者经参芪注射液治疗后血液流变学示低切与高切变率下全血黏度、血浆比黏度、红细胞聚集指教、红细胞电泳时间、红细胞比积、血小板聚集率、纤维蛋白原均有显著性下降(P＜0.01或P＜0.05),与B组比较亦有显著下降(P＜0.05).临床总有效率及显效率A组分别为94.5%及50.0%;B组为73.6%及26.4%.A组疗效明显优于B组(P＜0.05),治疗期间未见参芪扶正注射液严重不良反应.结论:参芪扶正注射液能显著改善慢性肺心病急性加重期患者的血液流变性,是辅助治疗肺心病的一种有效、安全的药物.     

运动对女大学生心肺适能的影响

通过了解体育与非体育专业学生健康体适能状况及其差异,探讨运动对女大学生心肺适能的影响。采用随机抽样的方法从体育与非体育专业的男生中分别各抽取16人,使用台阶试验和肺功能测试仪分别对他们进行心肺适能的有关指标,按要求进行一一测试,并采用检验对其差异的显著性进行检验。结果显示:体育专业女生台阶指数明显高于非体育专业女生(P<0.01);体育专业女生台阶负荷后心率变化幅度相对于非体育女生比较小、恢复较快,均存在非常显著的差异(P<0.01);在肺功能测试中,体育专业女生的肺活量、用力肺活量、每分钟最大通气量均高于非体育专业女生,其中在肺活量、用力肺活量的比较中(P<0.01)、每分钟最大通气量比较中(P<0.05),与非体育女生比较都存在显著的差异性。得出结论,经常参加体育运动可以提高心肺适能,从而获得更好的体适能。