mlsa-iai-msu-lab/ru_sci_bench_zho_cite_reranking huggingface dataset:
Pd/N-doped carbon dots@dendritic mesoporous silica nanospheres: A highly efficient catalyst for the hydrogenation of 4- nitrophenol

Highly dispersed Pd/N-doped carbon dots (Pd/NCDs) were successfully immobilized in the mesoporous channels of aminofunctionalized dendritic mesoporous silica nanospheres (NMS). The synthesized Pd/NCDs@NMS catalyst exhibits outstanding performance in the catalytic reduction of 4-nitrophenol (4-NP), achieving a turnover frequency of 1461.8 mol·molPd –1·h~(–1), with the conversion rate remaining above 80% after 11 cycles. Experiments and density functional theory calculations reveal that the NCDs significantly affect the electronic structure of Pd nanoparticles, leading to changes in the energy barriers for the adsorption of 4-NP at the Pd sites and the conversion of 4-NP reaction intermediates, which is a key factor contributing to the catalytic performance. This study offers a new strategy for synthesizing carbon-dot-modified metal-based catalysts.
Chiral metal nanocluster within nanoarchitecture of fullerene C_(60):Chirality transfer and improvement of nonlinear optical property

Interaction between heterogeneous,nanometer-sized building blocks (NSBBs) is fascinating from viewpoints of both structures and functions.We report the co-assembly of fullerene C_(60) and a chiral silver nanocluster (Ag_6),which yields C_(60) nanoarchitecture decorated with a small amount of Ag_6.While Ag_6 exhibits circular dichroism (CD) signal mainly in the ultraviolet (UV) region,the signal of the C_(60)-Ag_6 hybrid extends to visible region (over 700 nm).Up to five pairs of CD signals were distinguished,which match well with the absorption of the C_(60) crystal.The successful chirality transfer from the guest of Ag_6 to C_(60)-dominated supramolecular system indicates that the "sergeants and soldiers" effect is valid in architectonics of NSBBs.In addition,the doping of Ag_6 leads to pronounced nonlinear optical response,paving a new way for the development of chiral optical materials.
Instability of colloidal lead halide perovskite nanocrystals: Causes, improvement, and evaluation

The instability of colloidal lead halide perovskite nanocrystals (NCs) presents a significant challenge for their application in optoelectronic devices. This review examines the primary causes of instability in these NCs and the proposed mechanisms of degradation. It also introduces the recently developed synthesis and surface passivation methods to address the instability issue of colloidal perovskite NCs. Specifically, we focus on the various types of ligands and precursors introduced during NC synthesis or post-treatment and how they impact the structural and optical properties of the perovskite NCs. This review also proposes a systematic approach to evaluating stability enhancement strategies by establishing key parameters and ranking them based on working and processing conditions. Finally, we discuss the issues that need to be addressed in future research to achieve practical application of lead halide perovskite NCs in advanced optoelectronic systems.
Risk stratification of delayed causative aneurysm detection and long-term outcome in angiographically negative spontaneous subarachnoid haemorrhage

Background The risk factors of aetiology and poor outcome in angiographically negative subarachnoid haemorrhage (anSAH) were unclearly. Methods The authors performed a retrospective review of a prospectively maintained database for anSAH patients between 2014 and 2018. AnSAH was defined as SAH presents in CT with no underlying vascular abnormality on initial digital subtraction angiography (DSA) within 72 hours of admission. Baseline and follow-up information, including medical history, bleeding pattern (perimesencephalic angiogram-negative SAH (PAN-SAH) and non-PAN- negative SAH (NPAN-SAH)), modified Fisher Scale (mFS), Glasgow Coma Score (GCS), Hunt-Hess grade, repeated imaging and causative vascular lesions and follow-up modified Rankin Scale (mRS) were reviewed. Poor outcome was defined as mRS scored 3-6 at last clinical follow-up. Results Among 303 enrolled patients, 272 patients underwent at least once repeated imaging examination (median follow-up time, 3.0 months). Twenty-one (7.7%) aneurysms were detected. Multivariate logistic analysis showed that NPAN-SAH and mFS 3-4 were associated with a high rate of aneurysm detection in anSAH patients. Based on risk stratification, the aneurysm detection rate in the high-risk group (both NPAN-SAH and mFS 3-4) was as high as 20.370 per 100 person-years. Furthermore, of 251 non-aneurysm anSAH patients, after a total follow-up time of 1265.83 patient-years, poor outcome occurred in 18 (7.2%) patients. Multivariate Cox analysis found that NPAN-SAH and GCS 3-12 were associated with a high rate of poor outcome of anSAH. The cumulative 5-year incidence rate for poor outcome in the non-aneurysm anSAH patients in the high-risk group (both NPAN-SAH and GCS 3-12) was as high as 75.302 per 100 person-years. Conclusions Even in anSAH confirmed by initial DSA, patients with NPAN-SAH and mFS 3-4 should be monitored for delayed causative aneurysm detection, meanwhile in non-aneurysm anSAH patients, NPAN-SAH and initial functional impairment are associated with poor prognosis.
高效液相色谱法测定蒙药壮西六味散中木香烃内酯和去氢木香内酯的的含量

目的:建立蒙药壮西六味散中木香烃内酯和去氢木香内酯的含量测定方法。方法:采用高效液相色谱法,应用Hypersil ODS C_(18)(250 mm×4.6 mm,5 μm)色谱柱;乙腈-甲醇-0.01%磷酸水(50∶8∶42)为流动相;流速0.8 mL·min~(-1);检测波长225 nm;柱温25 ℃。结果:木香烃内酯和去氢木香内酯分别在0.12~0.72 μg,0.112 5~0.675 0 μg范围内与峰面积具有良好的线性关系,木香烃内酯和去氢木香内酯的平均回收率分别为99.10%,100.23%,RSD为1.69%,1.51%(n=6)。结论:该方法精密度高,分离度好,可用于蒙药壮西六味散中木香烃内酯和去氢木香内酯的含量测定。
论文化自觉语境下中医文化的现代发展

文化自觉可以成为中医文化现代发展的方向引导。自醒与自省唤醒了中医文化危机意识、促进了中医文化现代发展的进程正式启动。自信与自立有助于守住中医文化独特的理论框架和核心价值体系,保证中医文化不会被全球化、现代化浪潮所吞噬而屹立于人类医学文化丛林。自新与自强可以有效地遏制中医药文化沦为其他医学文化的附庸或从属地位、实现中医文化在动态之中保持与现代社会的同步发展。
数据挖掘研究绝经综合征情志疗法疗效评价的思考

目前中医治疗绝经综合征的临床疗效评价主要采用KI、MENQOL量表,现代医学研究模式与中医的理论、思维方法等方面不同,存在是否符合中医理论和实际的问题,很难反映中医真正疗效。针对中医学这一数据特点,利用数据挖掘技术对中药与情志相结合的复杂干预方法治疗绝经综合征患者的数据库进行研究,对其治疗进行严格评价,建立一套能客观反映中医辨证论治特色的科学、客观、多维的疗效评价方法体系。
妇宁丸微波干燥的正交试验研究

目的筛选妇宁丸微波干燥的最佳工艺条件。方法采用正交试验法,以物料传输速度、物料厚度、干燥温度为指标,考察妇宁丸的水分含量、微生物限度、溶散时限。结果妇宁丸微波干燥以物料传输速度0.4m/min,物料厚度6mm,干燥温度70℃为最佳工艺条件。结论优选妇宁丸微波干燥工艺效果理想。
颈前路钛网植骨融合术后早期内固定松动原因分析

[目的]探讨颈前路钛网植骨融合术后早期内固定松动的风险因素。[方法]回顾分析42例颈椎病患者采用前路椎体次全切除减压钛网植骨,对其疗效及钛网融合情况进行评价。[结果]经过3~12个月随访,5例出现明显的钛网沉陷,其中2例行翻修术,所有患者术后JOA评分均有提高,平均提高5. 3分。[结论]钛网沉陷是颈前路椎体次全切除钛网植骨融合术的常见并发症,正确处理终板、仔细修建钛网、避免过度撑开可以降低术后内固定松动的发生。
第1人工跖趾关节置换术并发症及其处理研究进展

人工第1跖趾关节置换术作为晚期第1跖趾关节炎、?母外翻、?母强直、类风湿性关节炎等的一种治疗手段,最大限度地保留关节功能,与传统治疗方式相比降低了术中及术后并发症的发生。人工第1跖趾关节置换术常用的置入物类型有硅胶、金属、金属- 聚乙烯、生物分子等,不同种类置入物的并发症及发生率具有特异性。但该方式也有感染、疼痛复发、畸形复发、假体磨损、假体脱位、假体毒害作用等并发症。本文收集整理近年来有关人工第1跖趾关节置换术预后文献,总结置换术后并发症及相关处理。
Numerical Simulation of Self-excited Oscillation Switching Current in HVDC MRTB

This paper presents a numerical study of the current self-excited oscillations during the opening of high voltage direct current (HVDC) metallic return transfer breaker (MRTB). The switching arc is simulated using the magneto-hydrodynamics (MHD) theory coupled with the electric circuit variation. The simulation is proved accurate in simulating the current oscillation and the commutation process in MRTB by the good agreement between the calculated results and the experimental results, which are obtained on a MRTB prototype designed to break about 5 kA of DC current. Both kinds of the results show that the current oscillation starts at about 16.5 ms and the total arc time is about 24 ms with a commutation capacitor bank of 72 |iF and an inductor of 173 nH. With a farther analyze on how circuit parameters influence arc current oscillations, this study helps to improve the current interruption capability of MRTB.
Chromatic Mapping of Partial Discharge Signals

This contribution describes the use of chromatic techniques for quantifying signatures of partial discharges (PD). A brief description of the basis of chromatic monitoring is given along with explanations of how the approach may be applied for addressing signals produced by PDs. Laboratory test data from several sources for different types of PDs, operating conditions and geometries have been subjected to the chromatic procedures. These include a point-plane gap, a sphere in a liquid and treeing in a cable. Chromatic changes in PD signals have been investigated as a function of the amplitude of the alternating voltage producing the PD, the time duration before full electrical breakdown and for different forms of PDs. Results of the chromatic processing of these data are presented in the form of a number of chromatic maps relating to different quarter cycles of the alternating voltage producing the PDs. The results show the potential of the chromatic techniques for indicating the likelihood of full electrical breakdown and for distinguishing between certain forms of PDs. A summary of the chromatic processing procedures is presented for producing chromatic maps and for adaptation in further exploring PD signal features.
Simulation of Discharge Plasma in Mid-frequency Pulsed DC Magnetron

Pulsed magnetron sputtering in the mid-frequency range (5-350 kHz) has recently become a promising industrial technique for the deposition of high-quality films. In order to study the plasma properties in a pulsed DC magnetron, a two-dimensional self-consistent particle model is developed, and the temporal and spacial evolution of electrons and ions in discharge space are simulated. In these simulations, the magnetic field is calculated by finite element method, and the plasma is modeled by PIC/MCC (Particle-In-Cell, Monte Carlo Collision) method. The plasma density and the electric potential in the pulse-on and the pulse-off phases are preassigned, and then the temporal evolution of plasma close to the cathode and the substrate is analyzed. It is found that electrons accumulate close to the cathode in the pulse-off phase more than in the pulse-on phase, and hence the positive particles at the target are neutralized and the electric arc is suppressed. Moreover, more energetic ions accumulate close to the substrate. They bombard the film, and this enhances the film's quality.
Influence of Series Choke on Damping of Switching Transients in Distribution Transformers

Distribution transformers operating in modem system grids or in industrial networks are subjected to many switching transients, which may occur due to routine operations, network reconfigurations or as reaction on protection signals. Depending on the network configuration and parameters, such events may lead to external overvoltages and result in additional stresses on the insulation system. This paper presents the influence of a series choke on damping of switching transients in distribution transformers. The impact of the choke is assessed by both amplitude and rise time reduction. The suppression of the transient rise time is shown for a test configuration involving distribution transformers connected to low loss cable lines and a medium voltage breaker. Such phenomena are especially typical for industrial networks where switching operations are very frequent. Both simulation and experiment results are given. Simulation results as well as measurement results confirmed that switching events can lead to high dU/dt and in consequence, can have adverse impacts on insulation system. Voltage escalation during switching event is strongly related with system conditions. The results obtained for presented mitigation method are promising and indicate significant dUldt reduction as well as number of ignitions and voltage peak value. The protection of distribution transformers with a series choke is a new approach dedicated to environments prone to the occurrence of transients with high steepness. Experimental results show that the application of serial choke with suitable parameters realizes the reduction of dU/dt at the machines terminal from 24 kV/(is to 5 kV/ps, as well as the reduction of voltage peak value from 10 kV to 5 kV. The number of ignitions is also reduced.
Inhibiting Ice Accumulation on Conductors by Using Sheath Treated with Super-hydrophobic Surfaces

Ice accumulation on transmission lines often leads to great damage to power systems. Super-hydrophobic surfaces are proposed to inhibit ice accumulation on electrical power equipment. A novel anti-icing method was presented for conductors with super-hydrophobic sleeves. The super-hydrophobic sleeves were prepared by applying polydimethylsiloxane(PDMS) and nano-silica hybrid coating on the outer surface of polyethylen terephthalate (PET) sleeves. Hydrophobicity and ice adhesion strength of the super-hydrophobic surface were investigated Ice accumulation experiments were carried out on ordinary conductors, super-hydrophobic coated conductors, PET sleeve-covered conductors, and super-hydrophobic PET sleeve-covered conductors. Ice accumulation morphology, accumulated ice weight, and the icicle length of these four types of conductors were studied and analyzed. At the end of the 3 h ice accumulation experiment, the ice weight and icicle length on the conductor with super-hydrophobic PET sleeve was only approximately one tenth and one seventh of that on the untreated conductor respectively. Furthermore, the water contact angles of super-hydrophobic coated aluminum surface and super-hydrophobic coated PET sleeve were about 163° in average. The results indicate that the super-hydrophobic coating is effective in inhibiting ice accumulation on conductors. However, the use of a super-hydrophobic PET sleeve is a significantly more effective method comparing with the application of a super-hydrophobic coating directly on the conductor.
Radio Interference Characteristic of Ultra-high Voltage AC Transmission Lines by Using Stochastic Modeling

For developing ultra-high voltage (UHV) AC power transmission systems, it is important to precisely estimate and to limit the radio interference(RI) level of power lines. Based on the stochastic characteristics in amplitude and repetition rate of induced corona current, by using the probability theory and mathematical statistics, we establish a stochastic model for the wide-sense stationary random process of corona discharges. Then combining the stochastic model with model-piopagation-analysis method, the RI levels under three-phase UHV AC transmission lines are calculated. The results of the calculation based on stochastic model method and International Council on Large Electric Systems (CIGRE) excitation function are compared with that based on semi-empirical method and some other excitation functions. The stochastic model based on different excitation functions is also adopted to simulate the RI levels under finite test lines with two opened terminations. The results indicate that with the same average maximum gradient on conductor surface and the same conductor type, the number of corona discharge per unit length is one of the main reasons that causes the difference between different excitation functions. It is also concluded that for a long test line, the effect of standing wave on RI field strength is negligible in the middle of the line, but obvious near both terminations: for a 10-km line, the maximum difference in RI field strength is 2.78 dB, between the peak value of the standing wave near the ends and the steady value near the middle of the line.
Modification Method of Lightning Shielding Angle Calculation for Transmission Lines in Mountain Areas

Shielding angle is one of the main factors influencing lightning performance of transmission lines, which always stays in the focus of the design and the evaluation of lightning protection. A formula for the improved shielding angle is proposed for evaluating the lightning performance in different terrains. The digital elevation model (DEM) is used to obtain the micro-topography data, such as the slope gradient, slope aspect, etc. The following results are obtained by analyzing the influence of topography factors on the improved shielding angle: (1) improved shielding angle non-linearly increases with the increase of the slope gradient and the slope aspect, (2) improved shielding angle is more sensitive to the slope gradient than to the slope aspect, (3) the improved shielding angle in the mountain terrains is much greater than the designed shielding angle. This may be the reason why the designed shielding angle is limited into the rational range, while the shielding faults occur frequently.
Use of Double Differential-mode Current Injection Method Equivalent to High Level Illumination for Susceptibility Testing

To achieve the electric field strength and the induced currents in equivalence in susceptibility tests with the high-level field radiation above 400 MHz, a double differential-mode (DM) current injection method based on directional couplers is proposed. Two cascaded symmetrical directional couplers compose a coupling device to inject the DM currents. When the coupling device is used, two devices are necessary to achieve the equivalence between radiation and injection, i.e. the equivalence between the injected voltages and the field strength, which is linear, regardless of the characteristics of the equipment under test (EUT). The results are verified by experiments using typical coaxial cables and nonlinear devices, where the equivalence between the nonlinear EUT responses induced by radiation and injection at both ends is achieved by using two coupling devices. At a frequency up to 1.75 GHz, the maximal experimental error is only 3.39%. The experimental results confirm the accuracy of the proposed method even both the EUTs work in the nonlinear region. The proposed method is applicable for radiated susceptibility (RS) testing of interconnected systems in the microwave frequency band.
Impact of Ion Current on Total Electric Field Measurement Under HVDC Transmission Line

The total electric field(TEF) at ground level induced by high-voltage direct current (HVDC) overhead transmission lines is one of the important indexes for evaluating the lines' electromagnetic environment. Based on analyzing the existing TEF sensors and the measurement principle of ion-current density, the influence from ions on TEF measurements is quantitively studied The results show that the ions generated by the corona from a HVDC transmission line in operation cause errors in the measurement of TEF. This error is determined through analyzing the component of total measuring current on the filed mill's sensing electrode: if no appropriate approach taken, the maximum measurement error reaches up to 4.3%. Furthermore, a method that can eliminate such error, and hence improve the accuracy of TEF sensors is designed.
Research on Lightning Protection of Overhead Power Distribution Lines

There are two major protective methods against lightning outages on overhead distribution lines. One is a surge arrester, and the other is an overhead ground wire. The surge arresters have rather constant effect regardless of the cause of the lightning outage. On the other hand, the effect of an overhead ground wire is quite different in two major causes, the direct lightning hit and the induced overvoltage. It is sufficient to provide surge arresters with an interval of 300 m for protection against the induced overvoltage caused by the nearby lightning stroke. Use of an overhead ground wire together with surge arresters is effective for lightning protection against the direct lightning hit to a distribution line. Puncture of surge arresters is the popular outage when the outage caused by the insulation break decreases sufficiently. Also, the existence of nearby trees leads to the line break due to the side flash from a tree. Advanced lightning protection equipment with ZnO arrester components is popular in Japan. Modeling of a pole transformer and application of an electromagnetic analysis method, such as FDTD method, to surge phenomena is considerably advanced.
逸心汤对痰瘀型慢性心力衰竭临床疗效观察

近几年来,慢性心力衰竭(CHF)的治疗虽然有了长足进展,抑制恶性神经体液因子使CHF 死亡率显著降低,但是,随着我国人口老龄化进程加快,CHF 的发病率逐年增加,造成严重的公共健康问题~([1]),给社会带来沉重的经济负担。临床工作中痰瘀型CHF 患者较为常见,为了寻找其副作用少、疗效好、顺从性好的治疗CHF 新疗法; 同时根据中医学辨证论治、活血化瘀、化痰益气理论,采用我院验方“逸心汤”对痰瘀型CHF 进行临床疗效观察。
腓骨肌萎缩症临床表现、基因分型和分子发病机制研究进展

综上所述,CMT的诊断依据的是临床、电生理和病理资料,但是由于CMT具有明显的临床异质性,不同基因突变所致的CMT患者从表型上很难区分,而且并非所有患者都有典型的临床或电生理改变,另外,神经活检的损伤比较大,患者接受程度低。相比之下基因诊断的准确性高,无损伤,并且在病程早期即可做出诊断确定基因型。
埋地钢质管道腐蚀直接评价方法

我国现有长输管道10~5 km、集输管道3×10~5 km、公用管道2×10~5 km,这些与人们日常生活与工业生产密切相关的输送管道一旦发生严重事故,易燃、易爆或有毒介质可能引起灾难性的人员伤亡和财产损失。腐蚀是管道事故的主要诱因之一,准确的检测并判断管道的腐蚀现状、发生部位及发展的趋势是有效预防、控制管道腐蚀事故的关键环节和前提条件。
高血压脑出血立体定向穿刺与内科保守治疗的临床比较分析☆

目的比较立体定向穿刺引流与内科保守治疗高血压脑出血20~30mL时(hypertensive intracerebral hemorrhage,HICH)的住院费用、时间及疗效。方法回顾性分析2010年3月至2012年12月我院92例高血压脑出血患者,出血量20~30mL,一组为立体定向穿刺引流治疗,一组为内科保守治疗,比较两组的住院时间、费用、出院时及3个月随访神经功能障碍率(主要为肢体瘫痪)及恢复结果。结果立体定向穿刺引流组平均住院时间(14.4±8.3)d,内科保守治疗组(24.5±14.1)d(P <0.05),在住院费用上,前组(26296.28±5292.12)元,后组(31769.48±6342.83)元(P<0.05),在GOS预后上,出院时立体定向穿刺引流组恢复良好39例、恢复较差5例,无开颅手术治疗病例;内科保守治疗组分别为30、18例,其中2例因脑水肿重行开颅手术;3个月随访,立体定向穿刺引流组生活自理23例、轻度偏瘫16例、中重度5例,内科保守治疗组分别为20、8、20例(u=2.499, P<0.05)。立定定向穿刺引流组在上述方面较内科保守治疗组具有优势(P<0.05)。结论立体定向穿刺引流治疗幕上高血压脑出血20~30mL时,可缩短住院时间、降低费用、预后更佳,较内科保守治疗有更好的近期及远期疗效。
“中国地区整层大气甲烷柱总量及其垂直分布特征研究”研究成果介绍

甲烷(CH_4)是一种重要的大气微量成分,其在大气中造成的温室效应仅次于CO_2,而远高于N_2O。同时,CH_4又是化学活性气体,在大气中易被氧化而产生一系列H_xO_y和碳氢氧化物,它们在许多大气成分的化学转化中扮演着重要角色⑴。因此CH_4的浓度变化对大气的化学过程和气候变化都具有重要作用。自工业革命以来大气中CH4的含量迅速增加,目前已是工业化前的2倍多,20世纪80年代中期,CH_4含量以每年高达1%左右的惊人速度增长。目前国内外研究者已经对近地面CH_4的浓度分布和变化规律做了大量系统的研究,但由于缺乏先进的地基和卫星遥感观测仪器,缺少对高光谱遥感数据的处理能力,中国针对CH_4在整层大气中的时空分布特征规律所开展的系统研究不多。
干旱胁迫和盐胁迫对芝麻种子萌发的影响

分别比较了轻度、中度和重度3种不同程度的干旱胁迫和盐胁迫对芝麻种子萌发的影响。结果表明,轻度干旱(50 g /L PEG)和轻度盐(50 mmol /L NaCl)胁迫下,芝麻种子的发芽率、发芽势和发芽指数等发芽指标均较ck 略有提高,但幼苗苗高、根长、单株鲜重和活力指数等幼苗生长指标均显著低于ck(p < 0. 01);中重度干旱(150 ~200 g /L PEG)和中重度盐(100~200 mmol /L NaCl)胁迫下,芝麻种子的萌发和幼苗的生长均受到抑制。PEG 和NaCl 显著抑制芝麻种子萌发的浓度分别为150 g /L 和100 mmol /L,PEG 和NaCl 显著抑制芝麻幼苗生长的浓度分别为50 g /L 和50 mmol /L 。表明,芝麻在幼苗生长期较种子萌发期对干旱和盐胁迫更敏感。
贵州槭属植物分布新纪录

在野外调查与标本采集的基础上,通过与《贵州植物志》、《中国植物志》等资料比对,发现贵州槭属植物分布新纪录7种1变种,即:天台阔叶槭Acer amplum var. tientaiense,厚叶槭Acer crassum,锐齿槭Acer hookeri,疏花槭Acer laxiflourm,临安枫Acer linganense,橄榄槭Acer olivaceum,多果槭Acer prolificum,婺源槭Acer wuyuanense。
贵阳市野生兰科植物新记录

报道了贵阳市野生兰科植物2个新记录属13个新记录种和1个新记录变种,即毛兰属(Eria)、朱兰属(Pogonia)以及天贵卷瓣兰(Bulbophyllum tianguii)、直唇卷瓣兰(B. delitescens)、梳帽卷瓣兰(B. andersinii)、匍茎毛兰(Eriaclausa)、朱兰(Pogonia japonica)、钩距虾脊兰(Calanthe graciliflora)、艳丽齿唇兰(Anoectochilus moulmeinensis)、西南齿唇兰(A. elwesii)、单叶石仙桃(Pholidota leveilleana)、裂瓣玉凤花(Habenaria petelotii)、小羊耳蒜(Liparis distans)、平卧羊耳蒜(L. chapaensis)、镰翅羊耳蒜(L. bootanensis)和送春(Cymbidiumcyperifolium var. szechuanicum),并对这些种的地理分布及其生境做了简要记述。
近红外光谱技术在种子质量检测方面的研究进展

近红外光谱分析技术(NIRS)是具有速度快、效率高、稳定性好、不破坏样品、成本低、无污染等特点的检测技术,已广泛应用于农林牧、食品、化工等诸多领域。文章综述了NIRS 在种子品种鉴定、种子纯净度鉴定、种子发芽率测定、种子水分含量和生活力测定、种子活力和虫害检验等方面,应用于种子质量监督检验的研究现状和发展趋势。说明应用NIRS 不仅降低种子检验成本、提高检验效率,还有助于扩大常规种子检验的范围和用途。因此,NIRS 应用于种子质量检验有着重要的理论和实际意义。
广东地产药材中“茶药”的探讨

目的:对广东地产药材中名为“茶”的中药(下文称“茶药”)进行探讨分析,为减少因服用“茶药”中毒事件发生以及更安全有效地开发利用广东地产药材提供参考。方法:主要对岭南草药专著所收载的“茶药”进行总结、分析。结果:根据所查古今文献可知,广东地区习惯称为“茶”的中药有25种,其中1种有大毒,2种有毒,1种有小毒,除4种无记载外,其余均无毒,且多为清热解毒药。结论:对广东地产药材中的“茶药”进行系统深入研究,使“茶药”与凉茶之间区分清楚,对于弘扬和发展岭南中医药文化和广东地产药材研究有非常重要的意义。
癌症患者病情直接告知阻碍的原因分析及对策

目的了解医生将病情直接告知癌症患者的阻碍原因。方法采取便利抽样的方法,抽取4所三甲医院符合入选标准的94名医生,对其不直接告知的原因进行调查。并利用内容分析法进行分析。结果对医生不直接告知的原因归纳整理出11个范畴,5个主题,依次为规避、担心、尊重、缓冲、缺欠。范畴一致率为79.9%和75.9%。结论医生不直接告知的原因较多,医生认为逐渐告知真实病情比直接告知更为适宜。
持续电话回访对血液透析患者体质量增长的影响

目的探讨电话回访对控制维持性血液透析患者透析间期体质量增长的效果。方法选取42例维持性血液透析患者,随机分为对照组22例和观察组20例,对照组管床护士利用透析时间进行床旁教育、赠送透析知识手册供其自行阅读。观察组在此基础上由回访护士实施为期12周的透析间期电话回访。结果观察组透析间期体质量增加相对值、液体摄入依从性差的比例在整个回访期呈明显下降趋势,并在第8周、第12周显著低于对照组(P<0.05,P<0.01)。结论持续电话回访能控制维持性血液透析患者透析间期体质量增长。
无气腹腹腔镜手术治疗妊娠合并卵巢肿瘤患者的护理

对17例妊娠合并卵巢肿瘤患者于孕中期施行无气腹腹腔镜手术治疗,患者住院期间未发生早产或晚期流产,均未发生感染、静脉血栓形成等并发症,术后5~9 d出院.提出加强病情观察和并发症预防,注重基础护理,预防早产和流产的护理,强调出院后健康指导,对患者顺利渡过孕期有积极意义.
亚临界水提取陈皮中橙皮苷的工艺研究

目的优选最佳的亚临界水提取陈皮中橙皮苷的工艺。方法通过单因素和正交试验,以橙皮苷的得率为指标,优化陈皮中提取橙皮苷的亚临界水提取工艺参数。结果当提取温度为140 ℃、提取时间为45 min、料液比为20 mL/g 时陈皮中的橙皮苷的得率为79. 28%。结论与传统的提取方法相比,亚临界水提取法可明显降低提取时间和提高橙皮苷的得率。
戊己胃漂浮缓释片多组分体外释放行为研究

目的考察戊己胃漂浮缓释片中多成分体外释放行为及机制。方法采用浆法以人工胃液为介质,运用HPLC法测定戊己胃漂浮缓释片中芍药苷、盐酸小檗碱、吴茱萸碱和吴茱萸次碱在12 h 内的体外累积释放率,通过相似因子法结合拟合释放模型研究戊己胃漂浮缓释片体外释放行为。结果盐酸小檗碱、吴茱萸碱和吴茱萸次碱相似因子大于50,芍药苷和生物碱成分相似因子小于50,4种成分体外释放均符合Higuchi 模型。结论戊己胃漂浮缓释片中生物碱成分体外释放具有同步性,可达到缓释长效效果。