mlsa-iai-msu-lab/ru_sci_bench_zho_cite_reranking huggingface dataset:
Delayed sowing can increase lodging resistance while maintaining grain yield and nitrogen use efficiency in winter wheat

Lodging resistance of winter wheat(Triticum aestivum L.) can be increased by late sowing. However,whether grain yield and nitrogen use efficiency(NUE) can bemaintained with delayed sowing remains unknown. During the 2013–2014 and 2014–2015 growing seasons, two winter wheat cultivarswere sown on three dates(early sowing on October 1, normal sowing on October 8, and late sowing on October 15) to investigate the responses of lodging resistance, grain yield, and NUE to sowing date. No significant differences in lodging resistance, grain yield, or NUE between early and normal sowing were observed. Averaging over the two cultivars and years, postponing the sowing date significantly increased lodging resistance by 53.6% and 49.6% compared with that following early and normal sowing, respectively. Lodging resistance was improvedmainly through a reduction in the culmheight at the center of gravity and an increase inthe tensile strengthof the base internode. Late sowing resulted in similar grain yield aswell as kernel weight and number of kernels per square meter, compared to early and normal sowing. Averaging over the two cultivars and years, delayed sowing resulted in a reduction in nitrogen uptake efficiency(UPE) by 11.0% and 9.9% compared to early and normal sowing, respectively, owing to reduced root length density and dry matter accumulation before anthesis. An average increase in nitrogen utilization efficiency(UTE) of 12.9% and 11.2%compared to early and normal sowing, respectively, was observed with late sowing owing to a reduction in the grain nitrogen concentration. The increase in UTE offset the reduction in UPE, resulting in equal NUEs among all sowing dates. Thus, sowing later than normal could increase lodging resistance while maintaining grain yield and NUE.
Effects of culm carbohydrate partitioning on basal stem strength in a high-yielding rice population

Rice culm carbohydrate transport can simultaneously affect grain filling and stem lodging resistance by regulating non-structural carbohydrate (NSC) and structural carbohydrate(SC) contents. However, the relationship between carbohydrate transposition and culm strength is not well documented. Accordingly, a high-yielding hybrid rice cultivar (Y Liangyou 2) was tested under different N fertilization regimes at two locations, Taoyuan(a special high-yield eco-site), Yunnan province and Danyang(a representative eco-site of the middle and lower Yangtze), Jiangsu province, China. Significantly higher grain yield and basal stem strength were found at Taoyuan than Danyang under all N rates throughout the two-year experiment. At heading stage, soluble sugars, starch, cellulose and lignin contents of the basal culm at Taoyuan were significantly 132.0%, 73.7%, 1.2%, and 62.7% higher than those at Danyang, respectively. At 20 days after heading, soluble sugars and starch content at Taoyuan decreased significantly compared to Danyang, but lignin content remained higher. Culm carbohydrate transport to kernels at Taoyuan was significantly greater than that at Danyang, and the proportion of soluble sugars and starch was correspondingly 62.9% lower. However, the proportion of lignin and cellulose was 22.7% higher at Taoyuan than that at Danyang. Soluble sugars and starch partitioning were significantly reduced under an increased nitrogen application rate, but SC partitioning was little affected. There were significant positive correlations between basal culm bending stress and dry weight and cellulose and lignin proportions at both locations under all N rates, suggesting that the higher SC proportion at 20 days after heading was primarily responsible for culm strength. These results suggest that high-yielding rice populations with greater culm strength require both moderate NSC transport and greater SC accumulation.
Improved flexible Li-ion hybrid capacitors: Techniques for superior stability

Flexible power devices play an increasingly crucial role in emerging flexible electronics. To improve the electrochemical performance of flexible power devices, novel electrode structures and new energy-storage systems should be designed. Herein, a novel flexible Li-ion hybrid capacitor (LIC) is designed based on an anode comprising Li_4Ti_5O_(12) nanoplate arrays coated on carbon textile (LTO/CT) and a cathode comprising a flexible N-doped graphene/carbon-nanotube composite (NGC) film. The LTO/CT anode is fabricated by directly growing Li_4Ti_5O_(12) nanoplates on CT with robust adhesion using a simple one-pot hydrothermal reaction. Considering the volume of a real-device flexible LIC, the NGC//LTO/CT configuration delivers high volumetric energy and power densities of 2 mWh·cm~(-3) and 185 mW·cm~(-3), respectively. Furthermore, the flexible LIC shows excellent flexibility and electrochemical stability, with extremely small capacity fluctuation under different bending states. This work demonstrates a scalable route to assemble flexible LICs as high-performance power devices.
Practical considerations of Si-based anodes for lithiumion battery applications

Using Si-based anodes in Li-ion batteries is one of the most feasible approaches to achieve high energy densities despite their disadvantages, such as low conductivity and massive volume expansion, which cause unstable solid electrolyte interphase layers with mechanical failure. The forefront in research and development to address the above challenges suggests the possibility of fully commercially viable cells using various structural and interfacial modifications. In particular, we present a discussion of each dimension of Si-based anodes in multiple controlled systems, including plain, hollow, porous, and uniquely engineered structures, which are further evaluated based on their anode performances, such as initial reversibility, capacity retention for extended cycles with its efficiency, degree of volume expansion tolerance, and rate capabilities, by several practical standards in half cells. With these practical considerations, multi-dimensional structures with uniform size distributions (micrometers, on average) are strongly desired to satisfy the rigorous requirements for widespread applications. Furthermore, we closely examined several full cells composed of Si-based multicomponent anodes coupled with suitable cathodes based on practical standards to propose future research directions for Si-based anodes to keep pace with the rapidly changing market demands for diverse energy storage systems.
Polymer-assisted fabrication of gold nanoring arrays

In this paper, we report a new strategy for the fabrication of gold nanoring arrays via colloidal lithography and polymer-assisted self-assembly of gold nanoparticles (Au NPs). First, multi-segmented polymer nanorod arrays were fabricated via colloidal lithography. They were then used as templates for Au NP adsorption, which resulted in nanoparticles on the poly(4-vinyl pyridine) (P4VP) segments. Continuous gold nanorings were formed after electroless deposition of gold. The diameter, quantity, and spacing of the gold nanorings could be tuned. Three dimensional coaxial gold nanorings with varying diameters could be fabricated on a polymer nanorod by modifying the etch parameters. The nanorings exhibited optical plasmonic resonances at theoretically predicted wavelengths. In addition, the polymer-assisted gold nanorings were released from the substrate to generate a high yield of free-standing nanorings. This simple, versatile method was also used to prepare nanorings from other metals such as palladium.
Giant enhancement and anomalous temperature dependence of magnetism in monodispersed NiPt_2 nanoparticles

A simple yet general one-step solvothermal method is applied to synthesize sub-7 nm monodispersed single-crystal NiPt_2 nanoparticles (NPs) with the morphology of truncated octahedrons in the alloying state of disordered atomic arrangements. The effective magnetic moments of these NPs exhibit an anomalous temperature dependency, increasing from approximately 0.9 μ_B/atom at 15 K to 1.9 μ_B/atom at 300 K. This is an increase by a factor of more than three compared with bulk Ni. On the basis of experiments involving X-ray absorption near-edge spectroscopy of the L3 edge for Pt and density functional theory calculations, the observed novel magnetism enhancement and its anomalous temperature dependence are attributed to the electron transfer arising from the thermalactivation effects.
Folate targeted coated SPIONs as efficient tool for MRI

The development of more sensitive diagnostic tools allowing an early-stage and highly efficient medical imaging of tumors remains a challenge. Magnetic nanoparticles seem to be the contrast agents with the highest potential, if properly constructed. Therefore, in this study, hybrid magnetic nanoarchitectures were developed using a new amphiphilic inulin-based graft copolymer (INU-LAPEG- FA) as coating material for 10-nm spinel iron oxide (magnetite, Fe_3O_4) superparamagnetic nanoparticles (SPION). Folic acid (FA) covalently linked to the coating copolymer in order to be exposed onto the nanoparticle surface was chosen as the targeting agent because folate receptors are upregulated in many cancer types. Physicochemical characterization and in vitro biocompatibility study was then performed on the prepared magnetic nanoparticles. The improved targeting and imaging properties of the prepared FA-SPIONs were further evaluated in nude mice using 7-Tesla magnetic resonance imaging (MRI). FA-SPIONs exhibited the ability to act as efficient contrast agents in conventional MRI, providing a potential nanoplatform not only for tumor diagnosis but also for cancer treatment, through the delivery of anticancer drug or locoregional magnetic hyperthermia.
Au/Ni_(12)P_5 core/shell single-crystal nanoparticles as oxygen evolution reaction catalyst

We have demonstrated the improved performance of oxygen evolution reactions (OER) using Au/nickel phosphide (Ni_(12)P_5) core/shell nanoparticles (NPs) under basic conditions. NPs with a Ni_(12)P_5 shell and a Au core, both of which have well-defined crystal structures, have been prepared using solution-based synthetic routes. Compared with pure Ni_(12)P_5 NPs and Au-Ni_(12)P_5 oligomer-like NPs, the core/shell crystalline structure with Au shows an improved OER activity. It affords a current density of 10 mA/cm~2 at a small overpotential of 0.34 V, in 1 M KOH aqueous solution at room temperature. This enhanced OER activity may relate to the strong structural and effective electronic coupling between the single-crystal core and the shell.
Nanocomposite quasi-solid-state electrolyte for highsafety lithium batteries

Rechargeable lithium batteries are attractive power sources for electronic devices and are being aggressively developed for vehicular use. Nevertheless, problems with their safety and reliability must be solved for the large-scale use of lithium batteries in transportation and grid-storage applications. In this study, a unique hybrid solid-state electrolyte composed of an ionic liquid electrolyte (LiTFSI/Pyr_(14)TFSI) and BaTiO_3 nanosize ceramic particles was prepared without a polymer. The electrolyte exhibited high thermal stability, a wide electrochemical window, good ionic conductivity of 1.3 ×10~(–3) S·cm~(-1) at 30 ℃, and a remarkably high lithium-ion transference number of 0.35. The solid-state LiFePO_4 cell exhibited the best electrochemical properties among the reported solid-state batteries, along with a reasonable rate capability. Li/LiCoO_2 cells prepared using this nanocomposite solid electrolyte exhibited high performance at both room temperature and a high temperature, confirming their potential as lithium batteries with enhanced safety and a wide range of operating temperatures.
2015年江西省HIV-1分子流行病学调查及其耐药监测分析研究

目的了解2015年江西省人类免疫缺陷病毒(human immunodeficiency virus,HIV)感染者的亚型分布特征和监测性耐药情况。方法随机抽取121份HIV感染者的血浆样本,提取病毒核糖核酸(ribonucleic acid, RNA),采用反转录酶-聚合酶链锁反应(reverse transcription-polymerase chain reaction,RT-PCR)和巢式PCR扩增HIV pol区基因片段,利用pol区基因序列测定结果分析HIV感染者的亚型和监测性耐药情况。结果112份HIV感染者样本成功扩增并得到有效序列,江西省的HIV亚型主要有CRF01_AE、CRF15_01B、CRF07_BC、CRF08_BC、 CRF55_01B、B和CRF62_BC型,分别占23.21% (26 /112)、8.93% (10 /112)、49.11% (55 /112)、2.68% (3 /112)、 3.57%(4 /112)、4.46%(5 /112)和8.04%(9 /112),且5份样本中发现监测性耐药突变。结论与2002年吸毒人群的HIV亚型分布状况相比, 2015年江西省HIV感染者的亚型分布发生了变化。
Crystalline silicon surface passivation investigated by thermal atomic-layer-deposited aluminum oxide

Atomic-layer-deposited (ALD) aluminum oxide (Al_2O_3) has demonstrated an excellent surface passivation for crystalline silicon (c-Si) surfaces, as well as for highly boron-doped c-Si surfaces. In this paper, water-based thermal atomic layer deposition of Al_2O_3 films are fabricated for c-Si surface passivation. The influence of deposition conditions on the passivation quality is investigated. The results show that the excellent passivation on n-type c-Si can be achieved at a low thermal budget of 250 ℃ given a gas pressure of 0.15 Torr. The thickness-dependence of surface passivation indicates that the effective minority carrier lifetime increases drastically when the thickness of Al_2O_3 is larger than 10 nm. The influence of thermal post annealing treatments is also studied. Comparable carrier lifetime is achieved when Al_2O_3 sample is annealed for 15 min in forming gas in a temperature range from 400 ℃ to 450 ℃. In addition, the passivation quality can be further improved when a thin PECVD-SiNx cap layer is prepared on Al_2O_3, and an effective minority carrier lifetime of 2.8 ms and implied Voc of 721 mV are obtained. In addition, several novel methods are proposed to restrain blistering.
Electronic structure and photoluminescence property of a novel white emission phosphor Na_3MgZr(PO_4)_3:Dy~(3+) for warm white light emitting diodes

To explore suitable single-phase white emission phosphors for warm white light emitting diodes, a series of novel phosphors Na_3MgZr(PO_4)_3:xDy~(3+) (0 ≤ x ≤ 0.03) is prepared, and their phase purities as well as photoluminescence properties are discussed in depth via x-ray diffraction structure refinement and photoluminescence spectrum measurement. The electronic structure properties of the Na_3MgZr(PO_4)_3 host are calculated. The results reveal that Na_3MgZr(PO_4)_3 possesses a direct band gap with a band gap value of 4.917 eV. The obtained Na_3MgZr(PO_4)_3:Dy~(3+) phosphors are all well crystallized in trigonal structure with space group R3c, which has strong absorption around 365 nm and can generate warm white light emissions peaking at 487, 576, and 673 nm upon ultraviolet excitation, which are attributed to the transitions from ~4F_(9/2) to ~6H_(15/2), ~6H_(13/2), and ~6H_(11/2) of Dy~(3+) ions, respectively. The optimal doping content, critical distance, decay time, and Commission International de L'Eclairage (CIE) chromaticity coordinates are investigated in Dy~(3+) ion-doped Na_3MgZr(PO_4)_3. The thermal quenching analysis shows that Na_3MgZr(PO_4)_3:Dy~(3+) has a good thermal stability, and the thermal activation energy is calculated. The performances of Na_3MgZr(PO_4)_3:Dy~(3+) make it a potential single-phase white emission phosphor for warm white light emitting diode.
Ionizing radiation effect on single event upset sensitivity of ferroelectric random access memory

The impact of ionizing radiation effect on single event upset (SEU) sensitivity of ferroelectric random access memory (FRAM) is studied in this work. The test specimens were firstly subjected to ~(60)Co γ-ray and then the SEU evaluation was conducted using ~(209)Bi ions. As a result of TID-induced fatigue-like and imprint-like phenomena of the ferroelectric material, the SEU cross sections of the post-irradiated devices shift substantially. Different trends of SEU cross section with elevated dose were also found, depending on whether the same or complementary test pattern was employed during the TID exposure and the SEU measurement.
Phase estimation of phase shifts in two arms for an SU(1,1) interferometer with coherent and squeezed vacuum states

We theoretically study the quantum Fisher information (QFI) of the SU(1,1) interferometer with phase shifts in two arms by coherent ⊗ squeezed vacuum state input, and give the comparison with the result of phase shift only in one arm. Different from the traditional Mach–Zehnder interferometer, the QFI of single-arm case for an SU(1,1) interferometer can be slightly higher or lower than that of two-arm case, which depends on the intensities of the two arms of the interferometer. For coherent ⊗ squeezed vacuum state input with a fixed mean photon number, the optimal sensitivity is achieved with a squeezed vacuum input in one mode and the vacuum input in the other.
超声诊断双臀联体双胎1例

讨论联体双胎是罕见的单卵双胎畸形,发生率约1/5万~1/10万。在胚胎发育早期,受精后13天内胚盘分化形成正常的单卵双胎,如胚盘不完全分离则可形成联体双胎。联体双胎可分为对称性和不对称性,后者中较小的1胎称为寄生胎。根据融合部位,较常见的对称性双胎包括胸部联胎、臀部联胎、颅部联胎、脐部联胎等。本例属融合范围广泛的双臀联胎,较少见。联体双胎常伴有先天性心脏病、先天性膈疝、神经管畸形、淋巴水囊瘤、肾发育不良及肠道闭锁等畸形,预后较差,多数为早产,约40%死胎,约35%于出生后24 h内死亡;存活患儿的生存能力取决于融合部位、器官融合程度、是否合并其他畸形以及外科手术分离情况等。目前产前超声是联体双胎的首选影像学检查方法。单绒毛膜囊单羊膜囊双胎,胎儿在宫内相对位置无改变,胎头始终在同一水平,胎儿矢状切面可显示融合部位,2个胎儿共用同一脐带,脐带血管数量3条以上。超声检查发现单绒毛膜囊单羊膜囊双胎妊娠时,应多切面、多手段详细检查,以尽早诊断。
胰腺神经鞘瘤超声误诊一例

讨论神经鞘瘤是由神经鞘膜增生而成,起源于神经外胚层的雪旺细胞和中胚层的神经内膜,最常见于肢端,也见于躯干、头颈、纵隔、腹膜后、盆腔和直肠,但发生于胰腺者罕见。大多数胰腺神经鞘瘤患者缺乏特征性临床表现,常以腹痛或腹部不适就诊。胰腺神经鞘瘤多位于胰腺头部,位于体尾部者相对少见。其超声表现多样,可呈边界清晰的囊性、实性及囊实性占位。CT表现为有完整包膜的低密度和(或)伴不同程度囊性密度肿物;增强CT表现与组织学相关,高增强与无增强分别与Antoni A区和Antoni B区相对应。病灶磁共振成像检查多表现为T1WI低信号和T2WI高信号。而血管造影诊断价值有限。鉴于胰腺神经鞘瘤临床、实验室及影像学表现均无特征性,故术前诊断困难,易被误诊为黏液性囊腺瘤、SPT、浆液性囊腺瘤、无功能性神经内分泌肿瘤等。基于对本例患者性别、年龄、实验室检查、二维超声声像图及超声造影图像考虑,致其误诊为SPT。综上所述,超声检查示胰腺实性和(或)囊实性占位时,超声医师应当考虑可能为胰腺神经鞘瘤。影像学检查有助于胰腺病灶的定位及良恶性评估。
《奇经八脉考》道医思想探微

据史料记载,结合《本草纲目》所论,李时珍有着明确的道教医学思想。如《本草纲目》中引据了大量的道教著作和道教服食法等。《奇经八脉考》中也体现了这一思想,包括引据了《八脉经》《天元入药镜》《大道三章直指》《黄庭经》等道教著作,对所引用的打通经脉以获长寿理论的高度认可,以及相较之于《本草纲目》中对道教论药及服食法扬弃的态度,《奇经八脉考》对所引道教著作言论采取了全然认可的态度。
中医药文化传承的制度困境及对策研究

新颁布的《中医药法》明确规定了中医药文化的传承内容及方式,并规定与《非物质文化遗产法》相衔接的问题,然而,两部法律之间仍然存在制度上的冲突。文章就中医药文化传承定义、法律冲突与权利主体确定三个方面进行分析,破解存在中医药文化传承中存在的困境,并提出相应的对策。
影响山楂降脂功效发挥的因素

山楂是临床常用具有降脂作用的中药,但临床对山楂降脂作用的应用存在较多问题。文章对现有文献进行了整理、归纳、分析及总结,阐述了影响山楂降脂作用发挥的因素。经文献分析发现,总结山楂降脂的最优基原为山楂属植物山楂Crataegus pinnatifida Bge.,最优炮制为炒黄饮片,最优配伍为配伍何首乌等化浊降脂中药或丹参等活血化瘀类中药,通过该项研究以期为山楂的现代化研究开发及临床应用提供依据。
Anomaly detection in smart grid based on encoder-decoder framework with recurrent neural network

Anomaly detection in smart grid is critical to enhance the reliability of power systems. Excessive manpower has to be involved in analyzing the measurement data collected from intelligent motoring devices while performance of anomaly detection is still not satisfactory. This is mainly because the inherent spatio-temporality and multi-dimensionality of the measurement data cannot be easily captured. In this paper, we propose an anomaly detection model based on encoder-decoder framework with recurrent neural network (RNN). In the model, an input time series is reconstructed and an anomaly can be detected by an unexpected high reconstruction error. Both Manhattan distance and the edit distance are used to evaluate the difference between an input time series and its reconstructed one. Finally, we validate the proposed model by using power demand data from University of California, Riverside (UCR) time series classification archive and IEEE 39 bus system simulation data. Results from the analysis demonstrate that the proposed encoder-decoder framework is able to successfully capture anomalies with a precision higher than 95%.
锁定钢板联合髂骨取骨植骨治疗锁骨嗜酸性肉芽肿1例

嗜酸性肉芽肿是一种良性、局限性的朗格汉斯细胞增生症,发生在锁骨的嗜酸性肉芽肿临床上非常罕见,国内外鲜有报道。本院于2016年9月采用锁定钢板联合髂骨取骨植骨治疗锁骨嗜酸性肉芽肿1例,效果满意,报告如下。
Autonomous parking control for intelligent vehicles based on a novel algorithm

Along with the increasing number of vehicles, parking space becomes narrow gradually, safety parking puts forward higher requirements on the driver's driving technology. How to safely, quickly and accurately park the vehiclo to parking space right? This paper presents an automatic parking scheme based on trajectory planning, which analyzing the mechanical model of the vehicle, establishing vehicle steering model and parking model, coming to the conclusion that it is the turning radius is independent of the vehicle speed at low speed. The Matlab simulation environment verifies the correctness and effectiveness of the proposed algorithm for parking. A class of the automatic parking problem of intelligent vehicles is solved.
高直链淀粉杂交中籼稻新组合B优268

B优268系西南科技大学水稻研究所用自育新不育系B2A与自育新恢复系西科恢768配组育成的具高直链淀粉含量的三系迟熟杂交中籼稻新组合,于2014年通过四川省农作物品种审定委员会审定(川审稻2014009)。
湘两优900在华南作双季超级稻高产攻关中的种植表现及高产栽培技术

2015-2016年湘两优900在"华南双季超级稻年亩产三千斤技术模式攻关"项目广东省梅州兴宁市示范点种植26.8 hm~2,平均单产达11.26 t/hm~2,并表现出高度抗倒性。总结了其种植表现和机插高产栽培技术。
节水抗旱杂交稻新组合旱优73的种植表现及高产栽培技术

旱优73是上海市农业生物基因中心和上海天谷生物科技股份有限公司用沪旱7A与旱恢3号配组育成的节水抗旱杂交稻组合,2014年通过安徽省品种审定(皖审稻2014024)。该组合在安徽、湖北、湖南、江西等地试种示范表现出根系发达、抗旱性强、生育期短、稳产优质等特点,介绍了其特征特性及高产栽培技术。
杂交早稻新组合株两优47春制及其再生制种技术初探

2015-2016年在湖北松滋市进行了两系杂交早稻新组合株两优47春制加再生制种的初步探索。2015年春制0.67 hm~2,再生季平均产量1.47 t/hm~2;2016年春制8.0 hm~2,头季平均产量3.22 t/hm~2,再生季平均产量1.44 t/hm~2,2季合计达4.66 t/hm~2。总结了其春制加再生制种的主要技术。
《生物多样性公约》履约新进展

《生物多样性公约》(CBD,以下简称《公约》)于1992年5月22日获得通过,并于1993年12月29日生效,目前有196个缔约方。《公约》旨在促进生物多样性的保护、可持续利用以及公平公正地分享因利用遗传资源及相关传统知识所产生的惠益。目前 《公约》框架下通过了3个议定书:《卡塔赫纳生物安全议定书》、《名古屋-吉隆坡关于责任与赔偿的补充议定书》和《关于遗传资源获取与惠益分享的名古屋议定书》。《公约》还通过了一系列的工作计划、准则、指南、倡议等规范性文件,如《2011-2020生物多样性战略计划》(包括“爱知目标”)为全球生物多样性规划了蓝图。目前《公约》下运行的附属机构有:科学、技术和技艺咨询附属机构(SBSTTA,以下简称科咨机构);第8(j)(传统知识)及相关条款工作组;履约附属机构(SBI)。
Polymer-based membranes for solvent-resistant nanofiltration: A review

Separation of organic mixture is an inevitable process in most modern industrial processes. In the quest for a more sustainable and efficient separation, solvent-resistant nanofiltration (SRNF) has emerged as a promising answer. This is because SRNF is a membrane-based process which offers the key advantages of high efficacy and lowenergy intensity separation. In particular, polymer-based membranes can offer compelling opportunities for SRNFwith unprecedented cost-effectiveness.As a result, intensive research efforts have been devoted into developing novel polymer-based membraneswith solvent-resistant capacities as well as exploring potential applications in different types of industries. In this review, we aim to give an overview of the recent progress in the development of the state-of-the-art polymer-based membranes for SRNF in the first section. Emerging nanomaterials for mixed matrix and thin film nanocomposite membranes are also covered in this section. This is followed by a discussion on the current status ofmembrane engineering and SRNFmembrane commercialization. In the third section,we highlight recent efforts in adopting SRNF for relevant industrial applications such as food, bio-refinery, petrochemical, fine chemical and pharmaceutical industries followed by separations of enantiomers in stereochemistry, homogeneous catalysis and ionic liquids. Finally, we offer a perspective and provide deeper insights to help shape future research direction in this very important field of SRNF.
男性侵袭性血管黏液瘤1例

讨论侵袭性血管黏液瘤是罕见的间质性肿瘤,多见于成年女性,男女比例为1:6,发病机制尚未明确。调查研究显示男性侵袭性血管黏液瘤仅报道45例,年龄13~81岁,平均46岁;主要发生于阴囊(38%),精索(33%)和会阴(13%)。侵袭性血管黏液瘤的CT表现为边界清楚的低密度肿块;其MR T1WI呈低信号,T2WI呈高信号,可能与含有较多水分和黏液样基质有关;增强后出现不均匀强化,并出现分层漩涡征是本病的特征性表现,这可能与肿瘤血管的成熟度高及纤维血管间质丰富有关。本例为会阴肿块,推移但不侵犯直肠。MR T2WI示肿瘤有多个类圆形低信号区,可能与肿瘤内部含有大量血管和黏液有关;增强后呈渐进性明显强化并出现"漩涡征"符合该病特征性表现。本病确诊依靠病理。在盆底、会阴部发现边界清晰,具有"漩涡征"明显强化的肿物,应考虑本病的可能。本病应与以下疾病鉴别:①血管肌纤维母细胞瘤,增强后呈均匀性显著强化;②黏液瘤,信号均匀,增强后可见不强化的囊性区域;③黏液样纤维瘤,T2WI可表现为靶征,即周围高信号(黏液样基质)和中央低信号(纤维状胶原组织)。
1例高龄急性心肌梗死患者体外膜肺氧合及PCI的护理

总结1例高龄急性心肌梗死患者体外膜肺氧合辅助下经皮冠状动脉介入术(PCI)患者的护理经验。体外膜肺氧合可对高龄重症患者进行心肺功能支持,在其运转中采取“细致”、“重复”、“动态”与“合作”的方式对患者实施出凝血预防、血流动力学及内环境监测、容量管理和感染控制等全方位护理是治疗成功的关键。
Kruppel样因子家族与泌尿系肿瘤的相关性研究

Kruppel样因子(Kruppel-like factor, KLF)家族是一类广泛存在于生物体内的具有锌指结构的转录因子蛋白,可以结合到目的DNA上,在细胞分化和增殖方面进行转录调节。 KLF家族共有17个因子,按照发现的时间分别命名为KLF 1~17。KLF因子C-末端含有3个高度保守的Cys2/His2锌指结构,优先结合富含GC核苷酸的靶序列或CACCC片段,而KLF因子N-末端结构的不同导致功能也不尽相同。已有研究报道,KLF家族成员与许多肿瘤的发生相关,例如KLF2与结肠癌、乳腺癌,KLF5与食管癌,KLF10与胰腺癌。通过综述文献我们发现KLF家族中5个因子(KLF2、KLF 4、KLF 5、KLF 6和KLF 8)与泌尿系肿瘤关系密切,本文就KLF与泌尿系肿瘤相关性的研究现状综述如下。
儿童右侧脑室额角脊索样胶质瘤一例

放射治疗多用于次全切除或仅取病理的脊索样胶质瘤患者。Kobayashi等报道,作为术后辅助治疗,较为安全和有效的放射剂量为10.5~12 Gy,认为低剂量伽玛刀治疗在术后控制第三脑室脊索样胶质瘤复发方面是安全有效的。本例患儿术后未行放化疗,随访6个月,未见复发。目前,脊索样胶质瘤报道的病例较少,临床资料有限,对于肿瘤的起源、临床治疗效果及预后尚不十分清楚,还有待积累病例深入的研究和探讨。