mlsa-iai-msu-lab/ru_sci_bench_zho_cite_reranking huggingface dataset:
潜类别结构方程在中医证候演变分析中的运用概述

虽然目前有关于中医证候研究的方法层出不穷,但由于每种方法都有自身的局限性,尚未形成规范统一的证候标准。因此在未来中医证候研究过程中,合理的联合运用多种数理统计方法可能是较为理想的方式。文章旨在分析近年来潜在类别分析和结构方程模型在中医证候研究领域的应用进展,并探讨潜类别结构方程在中医证候运用种的可行性以及目前研究中存在的一些问题,为未来中医证候研究提供新的方向,为疾病的预防提供循证医学证据。
品管圈活动提高低危产妇自由体位执行率对分娩结局的影响

目的:通过品管圈活动提高低危产妇自由体位执行率从而改善分娩结局。方法:选择2016年11月-2017年4月在南京医科大学第一附属医院住院并分娩的314例低危产妇为对照组,2017年5-10月住院并分娩的306例低危产妇为观察组。对照组产妇实施传统仰卧位卧床方法的自由体位,观察组通过品管圈活动实施自由体位,品管圈活动11名圈员依据计划-实施-检查-处理循环来实施品管圈步骤。对两组产程时间、分娩方式、催产素使用、宫颈水肿进行比较,并纵向评价品管圈圈员的各项能力。结果:观察组低危产妇自由体位执行率提高至90%,超过了预计目标值,与对照组相比产程缩短,催产素使用率、宫颈水肿比例、剖宫产率均下降,差异有统计学意义(P < 0.05),且品管圈圈员各项能力均有明显提高。结论:品管圈活动可改善自由体位分娩结局及提高品管圈圈员的各项能力,提升产科质量。
不同BMI的缺铁性贫血孕妇补铁治疗效果的比较

目的:通过对不同体重指数(body mass index,BMI)的孕妇在孕20周血清铁蛋白(ferritin,SF)、血红蛋白(hemoglobin,Hb)水平调查及基于SF、Hb水平补铁治疗结果的分析,评价不同BMI孕妇常规补铁治疗效果。方法:回顾性分析在南京鼓楼医院建围产保健卡的1 770例孕妇。孕20周诊断为缺铁性贫血(iron-deficiency anemia,IDA)的孕妇273例分两组,A组:18.5 kg/m2 ≤ BMI ≤ 23.9 kg/m2、SF<30μg/L、Hb<110 g/L;B组:BMI≥24 kg/m2、SF<30μg/L、Hb<110 g/L。所有IDA孕妇均予补铁治疗,比较孕32周及38周Hb值、红细胞压积(hematocrit,HCT)值、IDA治愈率及妊娠结局的差异。结果:①A、B组比较:孕20周两组Hb、HCT水平差异无统计学意义(P > 0.05),至孕38周,B组Hb、HCT水平均低于A组(P < 0.05),A组IDA的治愈率较B组高(P < 0.05)。②妊娠结局:B组孕妇分娩新生儿胎龄小(P < 0.05),早产及新生儿转重症病房发生率高(P < 0.05),未发现新生儿Apgar评分、体重、身长等方面有显著差异(P > 0.05)。结论:孕中、晚期IDA患病率较高,超重肥胖人群孕晚期发生IDA的风险更大,且常规补铁治疗效果欠佳。
Density PSO-based software module clustering algorithm

Software module clustering is to divide the complex software system into many subsystems to enhance the intelligibility and maintainability of software systems.To increase convergence speed and optimize clustering solution,density PSO-based (DPSO) software module clustering algorithm is proposed.Firstly,the software system is converted into complex network diagram,and then the particle swarm optimization (PSO) algorithm is improved.The shortest path method is used to initialize the swarm,and the probability selection approach is used to update the particle positions.Furthermore,density-based modularization quality (DMQ) function is designed to evaluate the clustering quality.Five typical open source projects are selected as benchmark programs to verify the efficiency of the DPSO algorithm.Hill climbing (HC) algorithm,genetic algorithm (GA),PSO and DPSO algorithm are compared in the modularization quality (MQ) and DMQ.The experimental results show that the DPSO is more stable and more convergent than the other three traditional algorithms.The DMQ standard is more reasonable than MQ standard in guiding software module clustering.
KCNQ3、SCN3A基因变异的全面性癫痫伴热性惊厥附加症家系临床分析(附1例报告)

全面性癫痫伴热性惊厥附加症(generalized epilepsy with febrile seizures plus,GEFS+)是一个以家族为整体的癫痫综合征,是一种儿童期发病的常染色体显性遗传的特发性癫痫综合征。随着分子诊断水平不断提高,基因变异作为发病因素越来越被人们重视,目前已被证实SCN1B、SCN1A、SCN2A、GABRG2和GABRD是其致病基因。近年来随着二代测序技术的发展,其他癫痫相关基因变异亦可能引起GEFS+。现报道2017年7月哈尔滨市儿童医院神经内科收治的1例GEFS+患儿,分析此患儿及家系成员的临床表现、视频脑电图(VEEG)和基因检测结果,复习相关文献,以提高临床医师对本病的认识。
中国儿童胃镜结肠镜检查规范操作专家共识

1996年《中华儿科杂志》发表了《小儿纤维胃镜检查操作常规(试行)》和《小儿纤维结肠镜检查操作常规(试行)》两篇操作常规,对推动并促进我国儿童消化内镜的普及和规范诊疗具有重大的意义。近20年来,随着消化内镜设备的改良以及内镜技术的不断进步,儿童消化内镜在诊断与治疗方面开展的项目愈来愈多。目前,国际上儿童消化内镜指南主要有北美儿童胃肠-肝病-营养学会(NASPGHAN)联合美国消化内镜学会(ASGE)的儿童消化内镜共识意见、日本儿童消化内镜指南、欧洲儿童胃肠-肝病-营养学会(ESPGHAN)联合欧洲消化内镜学会(ESGE)的儿童消化内镜指南等。为此,依据我国儿童胃镜、结肠镜操作常规,并参考国际最新相关指南,由中华医学会消化内镜学分会儿科协作组牵头,组织儿科消化内镜专家共同制定本共识。
Delay-dependent stability of linear multistep methods for differential systems with distributed delays

This paper deals with the stability of linear multistep methods for multi-dimensional differential systems with distributed delays. The delay-dependent stability of linear multistep methods with compound quadrature rules is studied. Several new sufficient criteria of delay-dependent stability are obtained by means of the argument principle. An algorithm is provided to check delay-dependent stability. An example that illustrates the effectiveness of the derived theoretical results is given.
深圳地区以胸腔积液为主要表现的10例儿童肺吸虫病误诊分析

目的总结深圳地区以胸腔积液为主要表现的儿童肺吸虫病的临床特征,分析误诊原因,提高临床诊治水平。方法回顾分析2007年2月至2017年2月在深圳市儿童医院呼吸科确诊的10例以胸腔积液为主要表现的儿童肺吸虫病的临床资料和诊疗情况。结果10例患儿均来自肺吸虫疫源地,其中9例有明确进食溪蟹或蝲蛄史。临床表现以发热、干咳、胸痛、腹痛为主,3例伴多浆膜腔积液,1例伴皮下结节,1例无症状。10例患儿均有外周血嗜酸性粒细胞计数升高,肺吸虫血清抗体均阳性。胸部CT均提示胸腔积液,肺内以斑片影为主,可见有结节、空洞及囊性影。在确诊前,被误诊为肺炎、肺结核、结核性心包炎、白血病等。结论深圳地区虽然是非疫源地,但来自疫源地的流动人口多,对不明原因的胸腔积液需考虑儿童肺吸虫病的可能。为避免误诊,应详细询问疫源地居住史、不洁饮食及疫水接触史,结合临床表现、血嗜酸性粒细胞计数、实验室及影像学检查做到早期诊断。
On the Fluid Dependence of Seismic Anisotropy: Beyond Biot-Gassmann

This work addresses the question of the fluid dependence of the non-dimensional parameters of seismic anisotropy. It extends the classic theory of the fluid-dependence of elasticity, and applies the approximation of weak seismic anisotropy. The analysis shows that reliance upon the classic theory leads to oversimplified conclusions. Extending the classic theory introduces new parameters(which must be experimentally determined) into the conclusions, making their application in the field context highly problematic.
Prestack Multi-Gather Simultaneous Inversion of Elastic Parameters Using Multiple Regularization Constraints

Inversion of Young's modulus, Poisson's ratio and density from pre-stack seismic data has been proved to be feasible and effective. However, the existing methods do not take full advantage of the prior information. Without considering the lateral continuity of the inversion results, these methods need to invert the reflectivity first. In this paper, we propose multi-gather simultaneous inversion for pre-stack seismic data. Meanwhile, the total variation(TV) regularization, L1 norm regularization and initial model constraint are used. In order to solve the objective function contains L1 norm, TV norm and L2 norm, we develop an algorithm based on split Bregman iteration. The main advantages of our method are as follows:(1) The elastic parameters are calculated directly from objective function rather than from their reflectivity, therefore the stability and accuracy of the inversion process can be ensured.(2) The inversion results are more in accordance with the prior geological information.(3) The lateral continuity of the inversion results are improved. The proposed method is illustrated by theoretical model data and experimented with a 2-D field data.
Pd-Catalyzed C—S Cyclization via C—H Functionalization Strategy: Access to Sulfur-containing Benzoheterocyclics

A C—H sulfurated cyclization protocol starting from thioacetates is developed for straightforward construction of sulfur-containing benzoheterocyclics. The diversiform functional dihydrobenzothiophenes and thiochromans were comprehensively achieved through the Pd-catalyzed carbonsulfur cyclization. Mechanistic studies indicated that C—H bond cleavage was involved in the rate-determining step. [1]Benzothieno-[3,2-b][1]benzothiophene (BTBT) and benzo[b]thieno[2,3-d]thiophene (BTT) were efficiently established as the well-known organic field-effect transistor (OFET) material molecules through this methodology.
Application of computational fluid dynamics simulation for submarine oil spill

Computational fluid dynamics (CFD) codes are being increasingly used in the simulation of submarine oil spills. This study focuses on the process of oil spills, from damaged submarine pipes, to the sea surface, using numerical models. The underwater oil spill model is developed, and a description of the governing equations is proposed, along with modifications required for the particalization of the control volume. Available experimental data were introduced to evaluate the validity of the CFD predictions, the results of which proved to be in good agreement with the experimental data. The effects of oil leak rate, leak diameter, current velocity, and oil density are investigated, by the validated CFD model, to estimate the undersea leakage time, the lateral migration distance, and surface diffusion range when the oil reaches the sea surface. Results indicate that the leakage time and lateral migration distance increase with decreasing leak rates and leak diameter, and increase with increasing current velocity and oil density. On the other hand, a large leak diameter, high density, high leak rate, or fast currents result in a greater surface diffusion range. The findings and analysis presented here will provide practical predictions of oil spills, and guidance for emergency rescues.
Two species of Hyalinoecia Malmgren, 1867 (Polychaeta: Onuphidae) from the South China Sea, with the first record of Hyalinoecia papillata from China

A taxonomic study of Hyalinoecia species based on the materials deposited in the Marine Biological Museum of the Chinese Academy of Sciences (MBMCAS) yielded two species: Hyalinoecia tubicola (Muller, 1776) and H. papillata Imajima, 1999. Both species were collected from the sandy bottoms in the northern South China Sea. Hyalinoecia tubicola is widely distributed from the coast of Guangdong Province southwards to the Xisha Islands. Hyalinoecia papillata is reported for the first time in the South China Sea. It differs from H. tubicola in having a prolonged, tongue-like prechaetal lobe with papillae along the lateral margins in the first parapodium (vs. auricular prechaetal lobe with smooth margins). The morphological description and illustration of both species are given.
The genus Chiropsoides (Chirodropida: Chiropsalmidae) from the Andaman Sea, Thai waters

Box jellyfish Chiropsoides buitendijki from the coastal zone along the Andaman Sea, southwestern Thailand are characterized by a box-shaped body with unilateral branched tentacles and lack of interradial furrows. Tentacular banding was first reported in the present study with 1–3–2–3–2–3–2–3–1 patterns (1–major band, 2–thicker minor band and 3–thinner minor band). The DNA sequences of 18 S ribosomal RNA genes indicated that the specimen examined were genetically similar to C. buitendijki that was previously identified from the Nam Bor Bay, Phuket, Thailand, and distinct to the other known taxa in the order Chirodropida. In addition, a significant genetic divergence based on 16S mitochondrial gene was observed within the C. buitendijki samples. This indicates a population genetic differentiation but needs further confirmation.
A deep learning-enabled portable imaging flow cytometer for cost-effective, highthroughput, and label-free analysis of natural water samples

We report a deep learning-enabled field-portable and cost-effective imaging flow cytometer that automatically captures phase-contrast color images of the contents of a continuously flowing water sample at a throughput of 100 mL/h. The device is based on partially coherent lens-free holographic microscopy and acquires the diffraction patterns of flowing micro-objects inside a microfluidic channel. These holographic diffraction patterns are reconstructed in real time using a deep learning-based phase-recovery and image-reconstruction method to produce a color image of each micro-object without the use of external labeling. Motion blur is eliminated by simultaneously illuminating the sample with red, green, and blue light-emitting diodes that are pulsed. Operated by a laptop computer, this portable device measures 15.5 cm × 15 cm× 12.5 cm, weighs 1 kg, and compared to standard imaging flow cytometers, it provides extreme reductions of cost, size and weight while also providing a high volumetric throughput over a large object size range. We demonstrated the capabilities of this device by measuring ocean samples at the Los Angeles coastline and obtaining images of its micro- and nanoplankton composition. Furthermore, we measured the concentration of a potentially toxic alga (Pseudo-nitzschia) in six public beaches in Los Angeles and achieved good agreement with measurements conducted by the California Department of Public Health. The cost-effectiveness, compactness, and simplicity of this computational platform might lead to the creation of a network of imaging flow cytometers for largescale and continuous monitoring of the ocean microbiome, including its plankton composition.
Quantifying single plasmonic nanostructure far-fields with interferometric and polarimetric k-space microscopy

Optically resonant nanoantennae are key building blocks for metasurfaces, nanosensors, and nanophotonic light sources due to their ability to control the amplitude, phase, directivity, and polarization of scattered light. Here, we report an experimental technique for the full recovery of all degrees of freedom encoded in the far-field radiated by a single nanostructure using a high-NA Fourier microscope equipped with digital off-axis holography. This method enables full decomposition of antenna-physics in its multipole contributions and gives full access to the orbital and spin angular momentum properties of light scattered by single nano-objects. Our results demonstrate these capabilities through a quantitative assessment of the purity of the “selection rules” for orbital angular momentum transfer by plasmonic spiral nanostructures.
Towards high-mobility In_(2x)Ga_(2–2x)O_3 nanowire field-effect transistors

Recently, owing to the excellent electrical and optical properties, n-type In_2O_3 nanowires (NWs) have attracted tremendous attention for application in memory devices, solar cells, and ultra-violet photodetectors. However, the relatively low electron mobility of In_2O_3 NWs grown by chemical vapor deposition (CVD) has limited their further utilization. In this study, utilizing in-situ Ga alloying, highly crystalline, uniform, and thin In_(2x)Ga_(2–2x)O_3 NWs with diameters down to 30 nm were successfully prepared via ambient-pressure CVD. Introducing an optimal amount of Ga (10 at.%) into the In_2O_3 lattice was found to effectively enhance the crystal quality and reduce the number of oxygen vacancies in the NWs. A further increase in the Ga concentration adversely induced the formation of a resistive β-Ga_2O_3 phase, thereby deteriorating the electrical properties of the NWs. Importantly, when configured into global back-gated NW field-effect transistors, the optimized In_(1.8)Ga_(0.2)O_3 NWs exhibit significantly enhanced electron mobility reaching up to 750 cm~2·V~(–1)·s~(–1) as compared with that of the pure In_2O_3 NW, which can be attributed to the reduction in the number of oxygen vacancies and ionized impurity scattering centers. Highly ordered NW parallel arrayed devices were also fabricated to demonstrate the versatility and potency of these NWs for next-generation, large-scale, and high-performance nanoelectronics, sensors, etc.
Microstructure evolution of a recycled Al-Fe-Si-Cu alloy processed by tube channel pressing

Although excellent recyclability is one of the advantages of Al alloys,a recycling process can reduce different properties of these alloys by adding coarse AlFeSi particles into the alloys’ microstructures.One of the well-known methods for modifying the microstructure of metallic materials is the imposition of severe plastic deformation (SPD).Nevertheless,the microstructure evolutions of recycled Al alloys containing extraordinary fractions of AlFeSi particles during SPD processing have seldom been considered.The aim of the present work is to study the microstructure evolution of a recycled Al-Fe-Si-Cu alloy during SPD processing.For this purpose,tubular specimens of the mentioned alloy were subjected to different numbers of passes of a recently developed SPD process called tube channel pressing (TCP);their microstructures were then studied using different techniques.The results show that coarse AlFeSi particles are fragmented into finer particles after processing by TCP.However,decomposition and dissolution of AlFeSi particles through TCP processing are negligible.In addition,TCP processing results in an increase in hardness of the alloy,which is attributed to the refinement of grains,to an increase of the dislocation density,and to the fragmentation of AlFeSi particles.
The selective effect of food-grade guar gum on chalcopyrite-monoclinic pyrrhotite separation using mixed aerofloat (CSU11) as collector

The flotation separation of chalcopyrite from monoclinic pyrrhotite using food-grade guar gum (FGG) as a depressant was studied through flotation tests,kinetic studies,dynamic potential measurements,adsorption experiments,and infrared spectral analyses.The microflotation results showed that the flotation separation of chalcopyrite from monoclinic pyrrhotite could not be realized by adding mixed aerofloat (CSU11) alone.The depressant FGG exhibited a selective depression effect on monoclinic pyrrhotite by controlling the pulp pH range from 5.0 to 6.0,with a maximum floatability variation of 79.36% in the presence of CSU11.The flotation kinetics,zeta-potential,adsorption,and infrared spectroscopy studies revealed that the FGG could absorb more strongly on the surface of monoclinic pyrrhotite than on the surface of chalcopyrite.In addition,the results revealed that the interaction of FGG with the monoclinic pyrrhotite surface was governed primarily by strong chemisorption,whereas FGG mainly bonded to chalcopyrite through hydrogen bonding.This difference was responsible for the excellent depression selectivity of FGG toward monoclinic pyrrhotite flotation and weak depression effect toward chalcopyrite flotation.
Synthesis,characterization,and property test of crystalline polyferric sulfate adsorbent used in treatment of contaminated water with a high As(III) content

A crystalline polyferric sulfate (PFS) adsorbent was synthesized by oxidizing and precipitating ferrous ions in air atmospheric conditions.The morphology,structure,specific surface area (SSA),and adsorptive efficacy of the adsorbent to As(III) were characterized by scanning electron microscope (SEM) and transmission electron microscopy (TEM) images,X-ray diffraction (XRD) patterns,Fourier- transform infrared (FTIR) spectra,BET SSA analyses,and adsorption experiments.The adsorbent showed a near-spherical aggregate structure and had good crystallinity.A significant amount of α-goethite co-precipitated with PFS in the case of the initial ferrous concentration of 1 mol/L and increased SSA of the adsorbent.The stability region of ferric compounds in the process was drawn and applied to analyze the iron behavior during the synthesis.The adsorption of As(III) in high As(III)-containing solutions fitted the Langmuir isotherm model adequately.The absorbent with co-precipitation of α-goethite showed good adsorbability for As(III) and good filtering performance in the high As(III)-containing solution of 10-100 mg/L under acidic,neutral,and alkaline conditions (pH 2.09-9.01).After the adsorption process,the stability of the residues bearing As(III) was evaluated by toxic characteristic leaching procedure (TCLP) tests.The results indicated that the residues were extremely stable,and the concentrations of arsenic in the leaching solutions were less than 0.01 mg/L.
Enhanced electrochemical properties of LaFeO_3 with Ni modification for MH-Ni batteries

In this work,we synthesized LaFeO_3-xwt%Ni (x = 0,5,10,15) composites via a solid-state reaction method by adding Ni to the reactants,La_2O_3 and Fe_2O_3.Field-emission scanning electron microscopy (FE-SEM) and energy-dispersive X-ray spectroscopy (EDS) results revealed that Ni powders evenly dispersed among the LaFeO_3 particles and apparently reduced their aggregation,which imparted the composites with a loose structure.Moreover,the Ni formed a conductive network,thus improving the conductivity of the composites.The maximum discharge capacity of the LaFeO_3 electrodes remarkably increased from 266.8 mAh·g~(-1) (x = 0) to 339.7 mAh·g~(-1) (x = 10).In particular,the high-rate dischargeability of the LaFeO_3-10wt%Ni electrode at a discharge current density of 1500 mA·g~(–1) reached 54.6%,which was approximately 1.5 times higher than that of the pure LaFeO_3.Such a Ni-modified loose structure not only increased the charge transfer rate on the surface of the LaFeO_3 particles but also enhanced the hydrogen diffusion rate in the bulk LaFeO_3.
Coordinated chaos control of urban expressway based on synchronization of complex networks

We investigate the problem of coordinated chaos control on an urban expressway based on pinning synchronization of complex networks. A node coupling model of an urban expressway based on complex networks has been established using the cell transmission model (CTM). The pinning controller corresponding to multi-ramp coordinated controller was designed by using the delayed feedback control (DFC) method, whose objective is to realize periodical orbits from chaotic states. The concrete pinning control nodes corresponding to the subsystems of regulating the inflows from the on-ramps to the mainline were obtained and the parameters of the controller were optimized by using the stability theory of complex networks to ensure the network synchronization. The validity of the proposed coordinated chaos control method was proven via the simulation experiment. The results of the examples indicated that the order motion on urban expressway can be realized, the wide-moving traffic jam can be suppressed, and the operating efficiency is superior to that of the traditional control methods.
Impact of variations of threshold voltage and hold voltage of threshold switching selectors in 1S1R crossbar array

The impact of the variations of threshold voltage (Vth) and hold voltage (Vhold) of threshold switching (TS) selector in 1S1R crossbar array is investigated. Based on ON/OFF state I–V curves measurements from a large number of Ag-filament TS selectors, Vth and Vhold are extracted and their variations distribution expressions are obtained, which are then employed to evaluate the impact on read process and write process in 32×32 1S1R crossbar array under different bias schemes. The results indicate that Vth and Vhold variations of TS selector can lead to degradation of 1S1R array performance parameters, such as minimum read/write voltage, bit error rate (BER), and power consumption. For the read process, a small Vhold variation not only results in the minimum read voltage increasing but it also leads to serious degradation of BER. As the standard deviation of Vhold and Vth increases, the BER and the power consumption of 1S1R crossbar array under 1/2 bias, 1/3 bias, and floating scheme degrade, and the case under 1/2 bias tends to be more serious compared with other two schemes. For the write process, the minimum write voltage also increases with the variation of Vhold from small to large value. A slight increase of Vth standard deviation not only decreases write power efficiency markedly but also increases write power consumption. These results have reference significance to understand the voltage variation impacts and design of selector properly.
Combinatorial synthesis and high-throughput characterization of copper-oxide superconductors

Fast synthesis and screening of materials are vital to the advance of materials science and are an essential component of the Materials Genome Initiative. Here we use copper-oxide superconductors as an example to demonstrate the power of integrating combinatorial molecular beam epitaxy synthesis with high-throughput electric transport measurements. Leveraging this method, we have generated a phase diagram with more than 800 compositions in order to unravel the doping dependence of interface superconductivity. In another application of the same method, we have studied the superconductorto- insulator quantum phase transition with unprecedented accuracy in tuning the chemical doping level.