mlsa-iai-msu-lab/ru_sci_bench_zho_cite_reranking huggingface dataset:
Use of polymeric sub-micron ion-exchange resins for removal of lead,copper,zinc,and nickel from natural waters

This research investigated the removal capacity of polymeric sub-micron ion-exchange resins (SMR) for removal of lead,copper,zinc,and nickel from natural waters in competition with natural organic matter (NOM).Polymeric SMR particles were created and tested to ensure that they were adequately dispersed in the solution.They removed little NOM (10% or less) from river water and wastewater,indicating that competition from NOM was not a major concern.SMR were able to remove 82% ± 0.2% of lead,46% ± 0.6% of copper,55% ± 20% of zinc,and 17% ± 2% of nickel from river water spiked with 500 μg/L of each.Similarly,in wastewater,they were able to remove 86% ± 0.1% of lead,38% ± 0.8% of copper,28% ± 1% of zinc,and 11% ± 1% of nickel.
Effects of silver nanoparticles with different dosing regimens and exposure media on artificial ecosystem

Due to the wide use of silver nanoparticles (AgNPs) in various fields,it is crucial to explore the potential negative impacts on the aquatic environment of AgNPs entering into the environment in different ways.In this study,comparative experiments were conducted to investigate the toxicological impacts of polyvinylpyrrolidone-coated silver nanoparticles (PVP-AgNPs) with two kinds of dosing regimens,continuous and one-time pulsed dosing,in different exposure media (deionized water and XiangJiang River water).There were a number of quite different experimental results (including 100% mortality of zebrafish,decline in the activity of enzymes,and lowest number and length of adventitious roots) in the one-time pulsed dosing regimen at high PVP-AgNP concentration exposure (HOE) compared to the three other treatments.Meanwhile,we determined that the concentration of leached silver ions from PVP-AgNPs was too low to play a role in zebrafish death.Those results showed that HOE led to a range of dramatic ecosystem impacts which were more destructive than those of other treatments.Moreover,compared with the continuous dosing regimen,despite the fact that higher toxicity was observed for HOE,there was little difference in the removal of total silver from the aquatic environment for the different dosing regimens.No obvious differences in ecological impacts were observed between different water columns under low concentration exposure.Overall,this work highlighted the fact that the toxicity of AgNPs was impacted by different dosing regimens in different exposure media,which may be helpful for assessments of ecological impacts on aquatic environments.
Spatial correlation of pit and mound topography with canopy gaps in a virgin mixed beech forest, northern Iran

In a reserved forest parcel in a virgin eastern Hyrcanian mixed beech forest, 80 ha was surveyed to determine the pit and mound topography, canopy gaps and dead trees. The aim was to investigate the spatial patterns and correlation of pit and mound features with canopy gaps. Seventy-five canopy gaps and 61 pit and mound features were identified. The univariate first order nearest neighbor (RCE) and bivariate second order test (Ripley's K) statistic were applied. RCE statistics highlighted a general aggregation pattern for canopy gaps and pits and mounds, while pits and mounds alone were more clumped. Distances between canopy gaps were 130 m average, whereas distances between pit and mound features and dead trees were 60 and 78 m, respectively. Spatial positive correlation of canopy gaps with pits and mounds were observed with all distances. The result of spatial correlations between canopy gaps with pits and mounds confirmed that windthrows cause micro successions in fallen tree ecosystem-scale correlated with gap phase dynamics in the forest community-scale.
Impacts of Coriaria nepalensis colonization on vegetation structure and regeneration dynamics in a mixed conifer forest of Indian Central Himalaya

This study evaluated impacts of Coriaria nepalensis Wall. colonization on soil characteristics, vegetation structure and composition, regeneration status and expected future compositional changes, biomass and carbon stock in tree species of a mixed conifer forest of Central Himalaya. Three sites (1 ha each in an old landslide area) differing in Coriaria density (low: 20 individuals ha~(-1); medium: 120 indiv. ha~(-1); high: 190 indiv. ha~(-1)) were used to enumerate the tree species. A total of 9 tree species and 2830 individuals were recorded from the three study sites that represented a gradient of Coriaria density. Number of species varied from 3 to 7 and the individuals from 690 to 1270 per site with lowest numbers at low Coriaria density and highest at medium Coriaria density. The number of seedlings increased with increasing Coriaria density, and the sites were unique in their seedling composition, indicating marked temporal dynamics. Site wise regeneration analysis showed that regeneration was poor at the site with low Coriaria density and good at the high-density site where many species emerged as seedlings. These results indicate that the ameliorative effects of Coriaria in terms of soil buildup, and accumulation of nutrients and organic matter helped more species to colonize the area. This facilitative ability of Coriaria can be used to restore degraded forest ecosystems of Indian Central Himalaya.
Late-entry commercial thinning effects on Pinus banksiana: growth, yield, and stand dynamics in Quebec, Canada

We studied late-entry commercial thinning effects on growth, yield, and regeneration in a 48-year-old jack pine (Pinus banksiana Lamb.) stand. Applied thinning intensities were 27, 32, and 47% of merchantable basal area (BA) excluding skidding trails. After 15 years, mean diameter at breast height of surviving trees in the 47% BA removal increased by 4.9 cm (25%) compared to the unthinned control. The 47% BA removal also increased gross merchantable volume (GMV) tree-1 by 46% compared to the control. The 27% BA removal had twice as much GMV ha~(-1) compared to the 47% BA removal after 15 years. Moreover, cumulative GMV ha~(-1) was much higher in the 27% BA removal than in the unthinned control. The highest thinning intensity produced larger trees on average, while the lowest thinning intensity maximized volume production per hectare. Maintenance of acceptable growing stock throughout the 15-year period in the 27% BA removal could provide other ecosystem functions such as biodiversity enhancement or wildlife habitat by delaying senescence. Regeneration data showed that a shift in species composition occurred in the understory. After 15 years, the understory was dominated by black spruce (Picea mariana (Mill.) B.S.P.), white birch (Betula papyrifera Marsh.), and trembling aspen (Populus tremuloides Michx.). If regenerating jack pine is an objective after final overstory removal, additional efforts will be needed to re-establish this species.
High power all-fiberized and narrow-bandwidth MOPA system by tandem pumping strategy for thermally induced mode instability suppression

An all-fiberized and narrow-bandwidth master oscillator power amplification (MOPA) system with record output power of 4 kW level and slope efficiency of 78% is demonstrated. Tandem pumping strategy is tentatively introduced into the narrow-bandwidth MOPA system for thermally induced mode instability (TMI) suppression. The stimulated Brillouin scattering (SBS) effect is balanced by simply using one-stage phase modulation technique. With different phase modulation signals, SBS limited output powers of 336 W, 1.2 kW and 3.94 kW are respectively achieved with spectral bandwidths accounting for 90% power of ∼0.025, 0.17 and ∼0.89 nm. Compared with our previous 976 nm pumping system, TMI threshold is overall boosted to be > 5 times in which tandem pumping increases the TMI threshold of > 3 times. The beam quality (M 2 factor) of the output laser is well within 1.5 below the TMI threshold while it is ultimately saturated to be 1.86 with the influence of TMI at maximal output power. Except for SBS and TMI, stimulated Raman scattering (SRS) effect will be another challenge for further power scaling. In such a high power MOPA system, multidetrimental effects (SBS, SRS and TMI) will coexist and may be mutual-coupled, which could provide a well platform for further comprehensively investigating and optimizing the high power, narrow-bandwidth fiber amplifiers.
甲氨蝶呤、阿糖胞苷、塞替哌联合利妥昔单抗(MATRix 方案)治疗初治原发中枢神经系统淋巴瘤的疗效分析

原发中枢神经系统淋巴瘤(primary central nervous system lymphoma,PCNSL)对化疗和放疗都很敏感,但是由于血脑屏障的存在,使很多化疗药物不能进入中枢,常规化疗的疗效较差。
中医药院校管理类专业《基础会计》教学改革研究

《基础会计》属于管理类本科专业的必修课程,其重要地位在于构建管理类相关专业知识体系的完整性。管理类各专业学生对《基础会计》学习不够重视,片面认为基础会计课程与自己的专业和未来职业无关。较强专业性和技术性的课程特点加深了初学者的学习难度,存在学习难度大,专业术语理解不清,经营活动认识困难的情形。文章阐述《基础会计》在中医药院校管理类专业开设中存在的现实问题,提出课程教学改革的建议。
高血压病4种血瘀证型特有miRNAs 及基因筛选研究

目的筛选高血压病4种血瘀证型特有miRNAs(microRNAs)及mRNAs并进行相关功能和通路预测。方法收集气虚、气滞、寒凝和热结4种血瘀证型高血压病人血清,干预人血管内皮细胞建立病症结合的血瘀证高血压细胞模型,采用IIlimina高通量测序技术检测细胞全基因组表达及miRNA表达并进行差异分析,筛选血瘀相关的miRNAs及mRNAs。结果气虚血瘀组有25个特有miRNAs,11个特有mRNAs;气滞血瘀组有22个特有miRNAs,8个特有mRNAs;寒凝血瘀组有33个特有miRNAs,6个特有mRNAs;热结血瘀组有22个特有miRNAs,6个特有mRNAs。气虚血瘀与嘌呤嘧啶代谢途径和cGMP - PKG信号通路关系密切;气滞血瘀可能与Rap1信号通路和NF - kB通路有关;寒凝血瘀与自然杀伤细胞介导的细胞毒作用通路及脂肪酸代谢过程有关;热结血瘀参与鞘脂类代谢路径,也可能与ERK1/2、AKT通路激活以及热休克蛋白70的激活有紧密联系。结论各血瘀证组均有各自特有的miRNAs、mRNAs及作用通路,为中医同病异证理论提供了基因层面的佐证;各相关通路为进一步研究高血压病各型血瘀证机制及药物靶点提供借鉴。
金福安汤与顺铂对A549肺癌荷瘤小鼠生活质量影响和抑瘤作用的比较研究

目的对比金福安汤及顺铂对A549荷瘤小鼠的生活质量和抑瘤作用的影响。方法采用50只BALB/c - nu小鼠制成A549荷瘤小鼠模型。60只小鼠随机分为金福安汤高、中、低剂量组以及阳性对照组(顺铂组) 、模型组(生理盐水组)和健康对照组,每组10只。观察小鼠的体质量,摄食量,瘤重,死亡数量以及不良事件等有关生活质量的相关指标。结果金福安汤各剂量组小鼠在体质量的增长以及摄食量优于阳性对照组。阳性对照组瘤重小于金福安汤各剂量组。阳性对照组小鼠死亡数量以及不良事件出现均多于金福安汤各剂量组。结论金福安汤组A549荷瘤小鼠生活质量优于顺铂,顺铂抗肿瘤作用优于金福安汤组。
Advances in coamorphous drug delivery systems

In recent years, the coamorphous drug delivery system has been established as a promising formulation approach for delivering poorly water-soluble drugs. The coamorphous solid is a single-phase system containing an active pharmaceutical ingredient (API) and other low molecular weight molecules that might be pharmacologically relevant APIs or excipients. These formulations exhibit considerable advantages over neat crystalline or amorphous material, including improved physical stability, dissolution profiles, and potentially enhanced therapeutic efficacy. This review provides a comprehensive overview of coamorphous drug delivery systems from the perspectives of preparation, physicochemical characteristics, physical stability, in vitro and in vivo performance. Furthermore, the challenges and strategies in developing robust coamorphous drug products of high quality and performance are briefly discussed.
Tectonics induced switching of provenance during the Late Quaternary aggradation of the Indus River Valley, Ladakh, India

The Indus River flows through Ladakh, one of the driest and coldest places on earth, in a tectonically active domain. Fluvial, glaciofluvial, lacustrine and debris dominated sequences represent the Late Quaternary sedimentary record along the river course. Karakoram Fault, a major crustal scaled feature reported to be active during the Quaternary, is associated with the Indus River drainage. Linkages between a major, active fault and deposits formed during the activity period of the fault are explored using heavy mineral deduced provenance and Optically Stimulated Luminescence (OSL) chronology. Five deposits in a ~200 km long stretch of the Indus River have been examined for a ~80 ka period to decipher the climate linked aggradation history. Damming of the Indus River at ~79 ka and existence of the Spituk Lake for >30 ka is demonstrated. Using geology of the provenance in relation to the mineralogical attributes of the Quaternary deposits, the major drainage reorganization when the connection of the Tangtse Valley to the Indus was blocked, is inferred at ~73 ka. It is supported by the geologicalgeomorphological evidence. The study demonstrates the application of provenance linked mineralogy in terrestrial aggradation in a tectonically active region.
Timescales of interface-coupled dissolution-precipitation reactions on carbonates

In the Earth's upper crust, where aqueous fluids can circulate freely, most mineral transformations are controlled by the coupling between the dissolution of a mineral that releases chemical species into the fluid and precipitation of new minerals that contain some of the released species in their crystal structure, the coupled process being driven by a reduction of the total free-energy of the system. Such coupled dissolution-precipitation processes occur at the fluid-mineral interface where the chemical gradients are highest and heterogeneous nucleation can be promoted, therefore controlling the growth kinetics of the new minerals. Time-lapse nanoscale imaging using Atomic Force Microscopy (AFM) can monitor the whole coupled process under in situ conditions and allow identifying the time scales involved and the controlling parameters. We have performed a series of experiments on carbonate minerals (calcite, siderite, dolomite and magnesite) where dissolution of the carbonate and precipitation of a new mineral was imaged and followed through time. In the presence of various species in the reacting fluid (e. g. antimony, selenium, arsenic, phosphate), the calcium released during calcite dissolution binds with these species to form new minerals that sequester these hazardous species in the form of a stable solid phase. For siderite, the coupling involves the release of Fe~(2+) ions that subsequently become oxidized and then precipitate in the form of FeIII oxyhydroxides. For dolomite and magnesite, dissolution in the presence of pure water (undersaturated with any possible phase) results in the immediate precipitation of hydrated Mg-carbonate phases. In all these systems, dissolution and precipitation are coupled and occur directly in a boundary layer at the carbonate surface. Scaling arguments demonstrate that the thickness of this boundary layer is controlled by the rate of carbonate dissolution, the equilibrium concentration of the precipitates and the kinetics of diffusion of species in a boundary layer. From these parameters a characteristic time scale and a characteristic length scale of the boundary layer can be derived. This boundary layer grows with time and never reaches a steady state thickness as long as dissolution of the carbonate is faster than precipitation of the new mineral. At ambient temperature, the surface reactions of these dissolving carbonates occur on time-scales of the order of seconds to minutes, indicating the rapid surface rearrangement of carbonates in the presence of aqueous fluids. As a consequence, many carbonate-fluid reactions in low temperature environments are controlled by local thermodynamic equilibria rather than by the global equilibrium in the whole system.
Size distribution of galaxies in SDSS DR7:weak dependence on halo environment

Using a sample of galaxies selected from the Sloan Digital Sky Survey Data Release 7 (SDSS DR7) and a catalog of bulge-disk decompositions,we study how the size distribution of galaxies depends on the intrinsic properties of galaxies,such as concentration,morphology,specific star formation rate (sSFR),and bulge fraction,and on the large-scale environments in the context of central/satellite decomposition,halo environment,the cosmic web:cluster,filament,sheet and void,as well as galaxy number density.We find that there is a strong dependence of the luminosity- or mass-size relation on the galaxy concentration,morphology,sSFR and bulge fraction.Compared with late-type (spiral) galaxies,there is a clear trend of smaller sizes and steeper slope for early-type (elliptical) galaxies.Similarly,galaxies with a high bulge fraction have smaller sizes and steeper slopes than those with a low bulge fraction.Fitting formulae of the average luminosity- and mass-size relations are provided for galaxies with these different intrinsic properties.Examining galaxies in terms of their large scale environments,we find that the masssize relation has some weak dependence on the halo mass and central/satellite segregation for galaxies within mass range 9.0 ≤ log M ∗ ≤ 10.5,where satellites or galaxies in more massive halos have slightly smaller sizes than their counterparts,while the cosmic web and local number density dependence of the mass-size relation is almost negligible.
Climatological analysis of the seeing at Fuxian Solar Observatory

There is a significant seasonal variation in the seeing of Fuxian Solar Observatory (FSO).The seeing in summer and autumn is better than that in winter and spring.The overall seeing is divided into the boundary layer seeing and free atmosphere seeing to investigate the climatic phenomena or meteorological events that might lead to seasonal variation in the seeing.The overall seeing was measured by the solar difference image motion monitor (SDIMM).The boundary layer seeing is calculated from the temperature difference between air and water.The analysis results show that the seasonal variation in seeing is caused by the alternation of subtropical high and westerly jet.The decrease of seeing in winter and spring at FSO is probably related to the westerly jet.A complete analysis of the seeing at FSO is given in this paper.It is also the first time to describe FSO’s boundary layer seeing and its measurement method.
Vehicle-to-Infrastructure Channel Characterization in Urban Environment at 28 GHz

Both ultra-reliable low latency and high-data-rate communications are required by connective vehicles. Millimeter wave (mmWave) with large bandwidth is a key technology to support high-data-rate communications. In this paper, the 28 GHz wideband vehicle- to-infrastructure channel is characterized for the urban environment in a major street in Manhattan. The deployment of the transmitter and the receiver, as well as the traffic models, are selected by considering the recommendation by 3GPP TR 37.885. Ray tracing simulator with calibrated electromagnetic parameters is employed in this work to practically conduct intensive simulations. The 3D environment model is reconstructed from OpenStreetMap. The power delay profile, path loss, root-meansquare delay spread, K-factor and so on, are extracted from the calibrated simulation results. The evolution of the parameters, as well as their statistical properties, are analyzed and modeled. The work of this paper helps the researchers understand the propagation channel for designing mmWave technologies and communication system in a similar scenario.
低剂量托伐普坦管理肝硬化低钠血症的近期疗效随访观察

多周期间断性低剂量托伐普坦应用于肝硬化失代偿期并低钠血症的血钠管理,具备一定的疗效性和安全性。本研究拟对部分住院失代偿期肝硬化并稀释性低钠血症患者采用多周期间断性低剂量托伐普坦管理方案,旨在探讨针对该并发症的托伐普坦合理应用方案。
经耳道内镜手术研究进展

现代耳外科技术建立在光线良好且具有放大功能的显微镜的使用上,手术疗效及安全性大为提高,并被认为是一种金标准的治疗方法。但显微镜只能观察物镜轴线正前方的组织结构,术中不能观察到隐蔽部位病变,需牺牲一些正常结构以显露病变。近10多年来,随着内镜技术和手术器械的发展,直径细小、照明良好、分辨率高、且具有一定放大倍数的耳内镜逐渐应用于耳显微外科手术中,如鼓膜修补、上鼓室胆脂瘤切除等中耳病变,甚至延伸至内耳及侧颅底病变的处理。耳内镜具有多角度视野和明亮的光源及显示系统,能够获得较清晰和放大的图像等优点。本文主要介绍近年来国内外关于经耳内镜下中耳、内耳及侧颅底疾病手术的研究进展。
Photocatalytic Degradation of 4-Chlorophenol by Gd-Doped β-Bi_2O_3 Under Visible Light Irradiation

Chlorophenols are known as persistent organic pollutants.Therefore,research on the removal of chlorophenols has attracted widespread attention.Herein,the photocatalytic degradation of 4-chlorophenol by Gd-doped β-Bi_2O_3 under visible light irradiation was studied.The results showed that Gd-doped β-Bi_2O_3 materials are efficient catalysts for the photocatalytic degradation of chlorophenols,and 2%(atomic fraction)Gd-doped β-Bi_2O_3 exhibits the highest photocatalytic activity for 4-chlorophenol degradation,because doping an appropriate amount of Gd~(3+) ions can effectively reduce the recombination rate of the photogenerated e~-/h~+ pairs and then enhance the photocatalytic performance.When the reaction was carried out at 25 °C for 6 h using the 2% Gd-doped β-Bi_2O_3 micro/nano materials of 200 mg and at air flow rate of 40 mL/min,the degradation rate of 4-chlorophenol reached 92.3%.Additionally,based on the analysis of the products,it was speculated that the dominant photocatalytic degradation mechanism of 4-chlorophenol by Gd-doped β-Bi_2O_3 under visible light irradiation is an oxidative process involving an attack by the hydroxyl radical.
Comb-shaped 2-Methylimidazolium Poly(arylene ether sulfone)Anion Exchange Membranes with High Alkaline Stability

A series of comb-shaped poly(arylene ether sulfone)s containing pendant 2-methyl-3-alkylimidazolium group(ImPAES-Cx,x=1,6,10)was prepared and characterized as novel anion exchange membranes.These Im- PAES-Cx membranes were obtained by benzylic bromination and imidazolium functionalization.The characteristic nano-phase separation structure was formed in membranes with longer alkyl side chains,as confirmed by small-angle X-ray scattering.The nano-phase separation structures endowed ImPAES-Cx membranes with improved ionic conductivity,dimensional stability(at least 60% decrease water uptake and swelling ratio at 60 °C)and mechanical properties,together with excellent alkaline stability.Especially,ImPAES-C6 membranes possessed enhanced hydroxide conductivity and chemical stability simultaneously.These results suggest that it is a feasible strategy to i ntroduce appropriate length of alkyl side chains into anion exchange membranes(AEMs)to improve the performance.
宫腔粘连术后辅助治疗的研究进展

宫腔粘连(IUA)指由于各种因素导致子宫内膜基底层的损伤,导致宫腔肌壁相互粘连。临床表现主要为月经量减少或闭经,影响女性生殖健康,可导致不孕和复发性流产。IUA的治疗原则是以手术为主的综合治疗。IUA早期诊断困难、手术风险较大、术后复发率高,治疗方案选择一直是临床治疗难点。近年来,越来越多的学者开展了关于IUA术后辅助治疗的研究,取得了一定进展。本文就IUA术后辅助治疗的研究做一综述,为临床治疗提供一定的思路。
超声诊断胎儿Jarcho-Levin综合征合并脊髓栓系1例

讨论Jarcho-Levin综合征是一种罕见疾病,与常染色体隐性遗传和DLL基因突变有关,主要表现为躯干短小、椎体分节不全和肋骨发育畸形,可合并其他异常或畸形,包括腹股沟疝、泌尿系统畸形、神经管畸形、下肢发育异常等。本病分为脊椎肋骨发育不良(spondylocostal dysplasia,SCD)和脊椎胸廓发育不良(spondylothoracic dysplasia,STD)2种类型,其共同表现为椎体分节不全和形成障碍,主要包括椎体融合或缺失、半椎体、蝴蝶椎;此外,STD表现为肋骨融合呈“蟹”状,胸廓严重变形,新生儿可因肺功能受损而死亡;SCD则主要表现为多个椎体和肋骨形态和数量异常,新生儿表现为胸廓不对称和严重脊柱侧弯。Jarcho-Levin综合征需与Klippel-Feil综合征相鉴别,后者表现为短颈、颈椎分节不全及肋骨融合、耳畸形及低发际等。本病预后与脊柱侧弯和胸廓变形程度有关。产前超声检查是发现Jarcho-Levin综合征最有效的手段,应尽可能做到早期诊断,避免缺陷儿出生。
A zinc(II) MOF based on secondary building units of infinite wavy-shaped chain exhibiting obvious luminescent sense effects

A new metal-organic framework (MOF), {[Zn_7(BPS)_4(OH)_6(H_2O)_2]-5H_2O]_n} (1), (H_2BPS=4,4'-bibenzoic acid-2,2'-sulfone), based on a wavy and infinite chain-shaped secondary building units, has been synthesized under solvothermal conditions and characterized by single crystal X-ray diffraction and further confirmed by PXRD, TGA and IR spectrum. The solid-state emission spectra reveal that compound 1 presents strong luminescence emission bands at room temperature. The fluorescent properties of compound 1 in diverse organic solvents indicated that 1 has palpable luminescent sense effects for DMF and DMAC.
Microfluidic fabrication of water-in-water droplets encapsulated in hydrogel microfibers

Aqueous microdroplets are of significant interest in biological fields, while the employment of water-in-oil (w/o) emulsion and lack of spatial control precluded its widespread application. Herein a novel microfluidic approach is developed to generate water-in-water (w/w) microdroplets embedded in hydrogel microfibers. Aqueous two phase system (ATPS) is applied to generate w/w droplets, and alginate is introduced to continuous phase to form microfibers, which offers spatial restriction and manipulation possibility to droplets. The size and pattern of aqueous droplets can be precisely controlled, and immobilization within hydrogel fiber facilitates easy manipulation and observation. The microdroplets surrounded by hydrophilic environment can act as a cell-cell interaction model, and their potential for biological and environmental applications are demonstrated by long-term culture of encapsulated cells and water remediation of Bacillus subtilis.