mlsa-iai-msu-lab/ru_sci_bench_zho_cite_reranking huggingface dataset:
腰椎融合术后邻近椎体Kummell病1例报告及文献回顾

腰椎融合术是治疗腰椎管狭窄、腰椎间盘突出等退变性疾病的常用手术,其临床疗效明确,但术后部分患者可出现邻近节段退变,甚至出现临床症状.老年骨质疏松患者脊柱压缩骨折后可出现骨折不愈合现象,即Kummell病.而腰椎融合术后发生邻近椎体Kummell病较为罕见.本病例为1例10年前因腰椎滑脱行经椎弓根螺钉内固定术的患者,术后出现邻近椎体Kummell病,并行经皮椎体成形术(PVP)治疗.现报告如下.
Design and Synthesis of Proteolysis Targeting Chimeras for Inducing BRD4 Protein Degradation

In this paper, we synthesized a series of proteolysis targeting chimeras(PROTACs) using VHL E3 ligase ligands for BRD4 protein degradation. One of the most promising compound 19g exhibited robust potency of BRD4 inhibition with IC_(50) value of (18.6±1.3) nmol/L, respectively. Furthermore, compound 19g potently inhibited cell proliferation in BRD4-sensitive cell lines RS4;11 with IC_(50) value of (34.2±4.3) nmol/L and capable of inducing degradation of BRD4 protein at 0.4—0.6 µmol/L in the RS4;11 leukemia cells. These data show that compound 19g is a highly potent and efficacious BRD4 degrader.
老年疾病累计评分法在共病评估中的应用及研究现状

老年人若同时存在2种或2种以上的慢性疾病、且相互间无任何原发与继发的相关性,即可称为共病(multimorbidity)。我国老年人共病现象非常突出,张可可等对北京市社区1187例老年人慢性病状况进行调查,结果显示共病率高达57.0%。对老年人共病状况进行有效评估对于描述老年人健康状态及慢性病负担、预测后续治疗费用、选择适当的疾病干预及治疗方案有重要意义。目前已有多种测量老年人共病的工具及方法,其中老年疾病累计评分法(cumulative illness rating scale for geriatrics, CIRS-G)是目前应用最为广泛且操作简单的共病评估工具之一。CIRS-G通过结合医疗记录、问诊、体格检查及辅助检查结果,对共病状况及严重程度进行评估,是评估共病造成的疾病负担及躯体功能下降的有效工具,被认为是目前评价老年人整体疾病负担的“金标准”。然而目前国内使用CIRS-G对老年人共病进行评估的研究尚且不多,故本文对CIRS-G的应用及研究现状进行综述如下。
Effect of heat flux and inlet temperature on the fouling characteristics of nanoparticles

In order to study the effect of heat flux and inlet temperature on the fouling characteristics of nanoparticles, and to further reveal the fouling mechanism for insights into proper operating conditions, γ-Al_2O_3/water suspensions were chosen as the subject of this research. The particulate fouling characteristics of γ-Al_2O_3/water suspensions on the surface of stainless steel have been experimentally studied by varying the heat flux and the inlet temperature under single-phase flow and subcooled-flow boiling conditions. The results show that in the condition of single-phase flow, the asymptotic value of fouling resistance decreases with increasing of heat flux and inlet temperature. The asymptotic value of fouling resistance under single-phase flow is much higher than for the subcooled-flow boiling condition. The effect of heat flux on the fouling resistance under the two flow states has an inverse relationship, and there exists a minimum value of fouling resistance between these two states. For subcooled-flow boiling, the asymptotic value of fouling resistance increases with increasing heat flux, whereas the effect on fouling resistance by the inlet temperature is negligible.
Oxidative desulfurization of dibenzothiophene over Fe promoted Co-Mo/Al_2O_3 and Ni-Mo/Al_2O_3 catalysts using hydrogen peroxide and formic acid as oxidants

This work reports the enhancing effect of a highly cost effective and efficient metal, Fe, incorporation to Co or Ni based Mo/Al_2O_3 catalysts in the oxidative desulfurization (ODS) of dibenzothiophene (DBT) using H202 and formic acid as oxidants. The influence of operating parameters i.e. reaction time, catalyst dose, reaction temperature and oxidant amount on oxidation process was investigated. Results revealed that 99% DBT conversion was achieved at 60 ℃ and 150 min reaction time over Fe-Ni-Mo/Al_2O_3. Fe tremendously enhanced the ODS activity of Co or Ni based Mo/Al_2O_3 catalysts following the activity order: Fe-Ni-Mo/Al_2O_3 > Fe-Co-Mo/Al_2O_3 > Ni-Mo/Al_2O_3 > Co-Mo/Al_2O_3, while H_2O_2 exhibited higher oxidation activity than formic acid over all catalyst systems. Insight about the surface morphology and textural properties of fresh and spent catalysts were achieved using scanning electron microscopy (SEM), X-ray diffraction (XRD), energy dispersive X-ray (EDX) analysis, Atomic Absorption Spectroscopy (AAS) and BET surface area analysis, which helped in the interpretation of experimental data. The present study can be deemed as an effective approach on industrial level for ODS of fuel oils crediting to its high efficiency, low process/catalyst cost, safety and mild operating condition.
Benzene selective hydrogenation over supported Ni (nano-) particles catalysts: Catalytic and kinetics studies

This report aims to reduce the benzene in a mixture of benzene and toluene as a model reaction using catalytic hydrogenation. In this research, we developed a series of catalysts with different supports such as Ni/HMS, Ni/ HZSM-5, Ni/HZSM5-HMS, Ni/Al_2O_3 and Ni/SiO_2. Kinetic of this reaction was investigated under various hydrogen and benzene pressures. For more study, two kinetic models have also been selected and tested to describe the kinetics for this reaction. Both used models, the power law and Langmuir-Hinshelwood, provided a good fit toward the experimental data and allowed to determine the kinetic parameters. Among these catalysts, Ni/Al_2O_3 showed the maximum benzene conversion (99.19%) at 130 ℃ for benzene hydrogenation. The lowest toluene conversion was observed for Ni/Si02. Furthermore, this catalyst presented high selectivity to benzene (75.26%) at 130 ℃. The catalytic performance (activity, selectivity and stability) and kinetics evaluations were shown that the Ni/SiO_2 is an effective catalyst to hydrogenate benzene. It seems that the surface properties particularly pore size are effective parameter compared to other factors such as acidity and metal dispersion in this process.
Heavy metals adsorption by banana peels micro-powder: Equilibrium modeling by non-linear models

In this study the copper and lead adsorption efficiency onto banana peels powder was investigated. The agro-industrial waste recovery represents one of the Circular Economy pillars. In the view of the synthesis of an environmentally friendly adsorbent material, the powder was used without any preliminary chemical or thermal activation, but only after simple washing, drying and grinding. The bio-adsorbent was characterized by the FTIR technique and tested in batch mode on synthetic aqueous solutions containing Pb and Cu in the range 10-90 mg·L~(-1). A selection of two (Langmuir, Freundlich) and three (Sips, Redlich-Peterson, Koble-Corrigan) parameter isotherm models was chosen to fit adsorption equilibrium data by non-linear regression procedure. The best fit isotherm model was selected relying on the error function with the lowest average percentage error(APE) value, among those characterized by the highest R2 values. As expected, the three-parameter models are found to better represent both metals bio-adsorption, with APE and R2 values always lower and higher, respectively, than the corresponding values obtained for the two-parameter models.
性腺发育及生育功能异常的染色体分析

目的分析性腺发育及生育功能异常患者的染色体核型。方法对因原发闭经、性腺发育异常、卵巢功能早衰、不孕不育等原因就诊的患者进行染色体核型分析。结果在1386例患者中,共114例存在染色体异常,异常率为8.2%。性染色体异常52例,占异常核型的45.6%。其中特纳综合征24例,占性染色体异常的46.2%;克氏综合征18例,占34.6%;47,XYY 3例、47,XXX 3例、性反转2例、两性畸形2例,比率分别为5.8%、5.8%、3.8%、3.8%。结论性染色体异常是导致原发闭经、性腺发育异常、卵巢功能早衰、不孕不育等疾病的重要原因之一,对该类患者应做到早诊断、早治疗。
产前无创DNA筛查高风险孕妇羊水穿刺诊断符合率分析

目的分析无创产前筛查(noninvasive prenatal screening, NIPS)提示高风险孕妇的产前诊断结果,探讨二者的符合率。方法对92例产前NIPS提示染色体数目异常高风险孕妇(其中包括21三体高风险62例、13三体高风险5例、18三体高风险12例、性染色体数目异常高风险11例、其他常染色体数目异常高风险3例)的羊水染色体进行核型分析。结果羊水培养染色体核型分析发现染色体非整倍体57例,诊断符合率为62%。其中21三体诊断的符合率为69%(43/62)。结论NIPS诊断符合率不同于筛查检出率,高风险孕妇仍需通过产前诊断才能确诊胎儿染色体是否存在异常。
脂肪酸甲酯精馏工艺实践

介绍了混合脂肪酸甲酯(生物柴油)的多塔连续精馏分离工艺,并阐述了对原料的要求、工艺要点和设备选型要点.生产要求原料中甲醇含量<0.1%(以原料质量计)、甘油含量<0.1% (以原料质量计),皂含量<0.3% (以原料质量计).为保证精馏的稳定性和高效,需要配置两个较大容积的原料储罐,每个储罐储存2~4 d,精馏绝对压力300 ~500 Pa,精馏温度不超过250℃.最终获得的C16脂肪酸甲酯纯度达90%以上、C18脂肪酸甲酯纯度达99%以上,甲酯得率约为85%,四塔生物柴油得率约7%,植物沥青得率约7%.
胚胎植入前遗传学诊断/筛查技术专家共识

随着辅助生殖技术临床开展规模的日益扩大,以及细胞及分子遗传学诊断技术的快速发展,胚胎植入前遗传学诊断(preimplantation genetic diagnosis, PGD)和植入前遗传学筛查(preimplantation genetic screening,PGS)技术迎来了快速的增长和发展。为使该项技术更加规范且有效地实施,力求临床诊断的精准和出生子代的安全,经中国妇幼保健协会生育保健专业委员会、中国医师协会生殖医学专业委员会、中国医师协会医学遗传学分会、中国遗传学会遗传咨询分会和中国妇幼健康研究会生殖内分泌专业委员会专家讨论,结合国际发展动态和国内临床应用的实际情况,达成以下临床和实验室专家共识。
Effect of thickness on the photophysics and charge carrier kinetics of graphitic carbon nitride nanoflakes

We investigated the thickness effect on the photophysics and charge carrier kinetics of graphitic carbon nitride nanoflakes (g-CNN) by using ultraviolet visible diffuse reflectance spectroscopy, atomic force microscopy, femtosecond transient absorption spectroscopy, and picosecond time-correlated single photon counting measurement. For the first time, we found that g-CNN displays a layer-dependent indirect bandgap and layer-dependent charge carrier kinetics.
Achieving high short-circuit current and fill-factor via increasing quinoidal character on nonfullerene small molecule acceptor

Recently, the fused-ring based low band gap (LBG) small molecule acceptors (SMAs) have emerged as efficient nonfullerene acceptors. So far, these LBG SMAs are mainly designed with IC (2-methylene-(3-(1,1 -dicyanomethylene)indanone)) or its analogs, the benzo-type electron-accepting (A) units. Compared to benzene, thiophene is less aromatic and thus the thiophene-involving semiconducting molecule has more quinoidal character, which effectively reduces the energy gap between the highest occupied molecular orbit (HOMO) and the lowest unoccupied molecular orbit (LUMO). Herein, we show that replacing the IC units in ITIC with the CT (cyclopenta[c]thiophen-4-one-5-methylene-6-(l,l-dicyano-methylene)), a thiophene-fused A unit, the quinoidal character is enhanced from 0.0353 on ITIC to 0.0349 on ITCT, the CT-ended SMA. The increase in the quinoidal character reduces the optical band gap and enhances the near IR absorptivity. When blended with the wide band gap (WBG) polymer donor, PBDB-T, an average power conversion efficiency of 10.99% is obtained with a short-circuit current-density (J_(sc)) of 17.88 mA/cm~2 and a fill-factor (FF) of 0.723. For comparisons, the J_(sc) is of 16.92 mA/cm2, FFis of 0.655 and PCE is of 9.94% obtained from the ITIC:PBDB-T device. This case indicates that the replacement of the benzene ring on the IC unit with a more polarizable five-member ring such as thiophene is an effective way to enhance the absorption of the near IR solar photons towards designing high-performance nonfullerene polymer solar cells.
Inkjet printing of viscoelastic polymer inks

Inkjet printing is a new fabricating method that can realize the precise film deposition. For polymer inks, the coil-stretch transition of polymer chains always impacts the ink droplet formation and a beads-on-a string structure filament is formed, thus generating unwanted satellite droplets. This review provides a short introduction of the dynamic process of the droplet formation. Then fluid rheological requirements for a printable polymer ink are summarized. Finally the strain hardening phenomenon of polymer chains in the filament formation and its impact on polymer ink-jetting are discussed. The research of viscoelastic polymer inks shows that rheological parameters and viscoelasticity are two key factors that determine the printability of polymer inks.
可调式“A”字架矫形器对痉挛型脑性瘫痪患儿步态的影响

目的:研究可调式“A”字架矫形器对脑瘫患儿下肢肌肉挛缩及步态的影响.方法:对32例5—8岁双下肢痉挛型脑瘫患儿随机分为两组,每组16例,在进行常规康复治疗的基础上,试验组夜间佩戴可调式“A”字架矫形器,对照组夜间佩戴踝足矫形器(AFO).可调式“A”字架矫形器是在双侧膝踝足矫形器(KAFO)的内侧胫骨平台水平处连接一个可调节长度的横杆,通过调节“A”字架矫形器中间的横杆来调整患儿股内收角的角度,每次均调至最大髋外展角度.在治疗前和治疗6个月后测量双侧被动髋外展角度,并进行简易步态分析.结果:佩戴可调式“A”字架矫形器脑瘫患儿双侧髋被动髋外展角度之和由63.23°士4.21°增加至113.16°士5.47°(P< 0.05),佩戴AFO组脑瘫患儿双侧被动髋外展角度之和由62.84°±5.37°增加至87.25°士4.83°(P>0.05).佩戴可调式“A”字架矫形器脑瘫患儿步幅由21.38士6.53cm增加至35.56士9.54cm(P<0.05),步速由12.67±2.52cm/s增加至19.79± 5.59cm/s(P<0.05),步长偏差由6.38±3.61 cm减少至3.44±2.56cm(P<0.05),均较佩戴AFO的脑瘫患儿改善显著.结论:可调式“A”字架矫形器能有效改善痉挛型脑瘫患儿异常步态,其效果优于AFO.
Thermoelectric transport properties of Pb-Sn—Te—Se system

IV-VI compounds are considered as promising thermoelectric materials, and high thermoelectric performance was achieved in IV-VI solid solutions. In this work, the thermoelectric properties of Pb-Sn-Te-Se-based solid solutions were systematically investigated. Among these solid solutions, it is found that a figure of merit (ZT) peak value of 1.0 at 873 K can be obtained in (PbTe)_(0.5)(SnTe)_(0.5),on account of the combination of superior electrical properties in SnTe and low thermal conductivity in PbTe. Furthermore, we investigated and summarized the thermoelectric transport properties and proposed the thermoelectric performance maps for the IV-VI solid solutions in Pb-Sn-Te-Se system. This comprehensive investigation on Pb-Sn-Te-Se-based solid solutions can effectively guide and scan thermoelectric performance for a given unknown composition and enhance the thermoelectric properties in IV-VI compounds.
多发性钙化上皮瘤1例

钙化上皮瘤又称毛母质瘤,是与毛母质有关的皮肤附属器良性肿瘤,本病临床上少见,多发性钙化上皮瘤更是极为少见.本病发病机制不十分明确,认为可能与瘤块细胞中不成熟基底细胞的细胞质和细胞核中β-环链蛋白增加有关,该蛋白刺激了细胞增殖和抑制细胞死亡.钙化上皮瘤病程缓慢,多无明显的自觉症状,常见于青年人,亦可见于老年人及儿童,男女发病率报道不一,邓德权等对336例毛母质瘤进行临床回顾性分析得出男女比例为1.17: 1,无明显性别差异,皮损好发于头面部,其次为上肢、颈部、躯干和下肢.本病临床表现多样,单发居多,易被误诊.王玲等报告25例毛母质瘤的临床分析中25例病例无一例术前诊断为毛母质瘤,常被误诊为皮肤肿块待查、皮脂腺囊肿、皮脂腺瘤等.其诊断主要依据组织病理学检查,钙化上皮瘤组织学上主要表现为由嗜酸性染色的影细胞和嗜碱性染色的基底样细胞组成不规则条索或团块为特征,并可见多核巨细胞反应、钙化、骨化等.本病发生恶变的可能性极小,较大病灶范围(直径>10~15 cm)具有侵袭性生物学特征的钙化上皮瘤,存在恶变为毛母质细胞癌的可能性.
Controlling Thermal Conduction by Graded Materials

Manipulating thermal conductivities are fundamentally important for controlling the conduction of heat at will. Thermal cloaks and concentrators, which have been extensively studied recently, are actually graded materials designed according to coordinate transformation approaches, and their effective thermal conductivity is equal to that of the host medium outside the cloak or concentrator. Here we attempt to investigate a more general problem: what is the effective thermal conductivity of graded materials? In particular, we perform a first-principles approach to the analytic exact results of effective thermal conductivities of materials possessing either power-law or linear gradation profiles. On the other hand, by solving Laplace's equation, we derive a differential equation for calculating the effective thermal conductivity of a material whose thermal conductivity varies along the radius with arbitrary gradation profiles. The two methods agree with each other for both external and internal heat sources, as confirmed by simulation and experiment. This work provides different methods for designing new thermal metamaterials (including thermal cloaks and concentrators), in order to control or manipulate the transfer of heat.
中国最大样本量探索egfr非常见突变肺癌的预后和治疗模式

19缺失、21 L858R点突变是肺癌患者最常见的两种EGFR突变类型(80%~90%),这类患者接受EGFR-TKI靶向治疗的客观缓解率高(>70%),中位生存期较化疗显著延长(无进展生存期>10个月)。然而,对于非常见EGFR突变,如L861Q、 G719X、20ins及复合型突变,我们知之甚少,且多数已发表的研究样本量都比较小,无法交出具有统计学意义的、让人满意的答卷。近日广东省肺癌研究所涂海燕主任在《Lung Cancer》上发表的一篇题为“EGFR非常见突变的系统性分析”值得关注。
Timing and structural controls on skarn-type and vein-type mineralization at the Xitian tin-polymetallic deposit, Hunan Province, SE China

Xitian tin-polymetallic deposit, located in the eastern Hunan Province, SE China, hosts quartz vein and skarn in the contact zone between carbonate and two stages granites. Critical geodynamic questions for South China are whether different types of mineralization form in the same time and how the magmatism-tectonic system controls the ore-forming process. Based on the distribution of the orebodies, six cassiterite samples from different types of mineralization are collected for dating. In-situ LA-MCICP-MS U-Pb isotopic data yielded concordia low intercept ages between 154 and 157 Ma, indicating that different types of mineralization belong to the same magmatism-mineralization system. Coupled with the study of the kinematic indicators, it suggests that the structural control of the wall rocks constrain the types of mineralization. These results provide further evidence of a close temporal link between the structure and the tin-polymetallic mineralization in Xitian deposit. Considering the structure in the district, granite dome plays an important role in the ore-forming process. The age and structural signatures in Xitian deposit are the response to the subduction of Pacific Plate.
Chemical characterization and sources of PM_(2.5) at 12-h resolution in Guiyang, China

The increasing emission of primary and gaseous precursors of secondarily formed atmospheric particulate matter due to continuing industrial development and urbanization are leading to an increased public awareness of environmental issues and human health risks in China. As part of a pilot study, 12-h integrated fine fraction particulate matter (PM_(2.5)) filter samples were collected to chemically characterize and investigate the sources of ambient particulate matter in Guiyang City, Guizhou Province, southwestern China. Results showed that the 12-h integrated PM_(2.5) concentrations exhibited a daytime average of 51 ± 22 µg m~(-3) (mean ± standard deviation) with a range of 17-128 µg m~(-3) and a nighttime average of 55 ± 32 µg m~(-3) with a range of 4-186 µg m~(-3). The 24-h integrated PM_(2.5) concentrations varied from 15 to 157 µg m~(-3), with a mean value of 53 ± 25 µg m~(-3), which exceeded the 24-h PM_(2.5) standard of 35 µg m~(-3) set by USEPA, but was below the standard of 75 µg m~(-3), set by China Ministry of Environmental Protection. Energy-dispersive X-ray fluorescence spectrometry (XRF) was applied to determine PM_(2.5) chemical element concentrations. The order of concentrations of heavy metals in PM_(2.5) were iron (Fe)[zinc (Zn)[manganese (Mn)[lead (Pb)[arsenic (As)[chromium (Cr). The total concentration of 18 chemical elements was 13 ± 2 µg m~(-3), accounting for 25% in PM_(2.5), which is comparable to other major cities in China, but much higher than cities outside of China.
ZnO-PCBM bilayers as electron transport layers in low-temperature processed perovskite solar cells

We investigate an electron transport bilayer fabricated at <110 ℃ to form all low-temperature processed, thermally stable, efficient perovskite solar cells with negligible hysteresis. The components of the bilayer create a symbiosis that results in improved devices compared with either of the components being used in isolation. A sol-gel derived ZnO layer facilitates improved energy level alignment and enhanced charge carrier extraction and a [6,6]-phenyl-C_(61)-butyric acid methyl ester (PCBM) layer to reduce hysteresis and enhance perovskite thermal stability. The creation of a bilayer structure allows materials that are inherently unsuitable to be in contact with the perovskite active layer to be used in efficient devices through simple surface modification strategies.
Rooting for new sources of natural rubber

Global production of natural rubber (NR) depends overwhelmingly on the Para rubber tree (Hevea brasiliensis), a slow-growing tropical tree that is threatened by low genetic diversity and high susceptibility to fungal blight [1]. Alternative rubber sources have been sought for more than a century, but very few species have been found that produce rubber of comparable quality [2]. One of the brightest candidates, first noticed by breeders in Soviet-era Russia, is Taraxacum kok-saghyz (commonly called TKS). This close relative of the common weedy dandelion has a number of attractive features. As a native of central Asia, TKS can be cultivated as a hardy, annual field crop in temperate climates. Its natural latex, produced at highest levels in the roots, yields a high-molecular-weight NR that is chemically similar to the rubber tree and far superior to synthetic rubber. And, as an added bonus, TKS produces inulin, a dietary fiber and low-glycemic-index sweetener that can be fermented for industrial bioethanol production. What TKS has lacked—until now—is an assembled reference genome that could be used for genomeenabled crop improvement and elucidation of the pathways for rubber and inulin biosynthesis. In their paper published in this issue, Jiayang Li, Hong Yu and colleagues [3] have taken a major step in rectifying that problem.
Towards a new discipline of Condensed Matter Chemistry

As of now, over 100 million chemical species, phases, compounds and materials have been created, covering virtually all elements in the periodic table. They exist in forms of multilevel structured condensed matters, ranging from solid-, quasi solid-, amorphous, mesh (e.g. nano- and clustered) to rubbery, melting, liquid and gaseous matters. These matters each have their distinct characteristics and functionality, serving as the main bodies of all chemical reactions. Their chemical property as well as reaction conditions, processes and products should be totally determined by their compositions and multilevel structures. Take the solid-state matter, for example. It is their chemical bonds, crystal structures and different types of defects, band structures, impurities, symbiotic phases, interfaces, as well as sizes and distributions of particles that together determine their fundamental chemical properties and reactions.
Model-driven deep-learning

Deep learning has been widely recognized as the representative advances of machine learning or artificial intelligence in general nowadays [1,2]. This can be attributed to the recent breakthroughs made by deep learning on a series of challenging applications. A deep-learning approach improves the accuracy rate of face recognition to be higher than 99%,beating the human level [3]. For speech recognition and machine translation, deep learning is approaching the performance level of a simultaneous interpreter [4]. For the game of 'go', it successfully beats the human world champion [5]. For diagnosis of some specific diseases, it has matched the level of medium or senior professional physicians [6]. Until now, it has been hard to find areas in which the deep-learning technique has not been tried in their respective tasks.
Modeling the Past and Current Distribution and Habitat Suitability for Ablepharus grayanus and A. pannonicus (Sauria: Scincidae)

Study of the climate variability in the past and present, and correlating those with changes in the distribution range of species has attracted considerable research interest. The genus Ablepharus consists of 10 recognized species, of which A. bivittatus, A. grayanus and A. pannonicus are documented from Iran. In the present study, we modeled with MaxEnt the potential distribution areas and determined the suitable habitats in past (mid-Holocene [MH], and the Last Interglacial [LIG]) and their current distribution for two species of snake-eyed skinks (A. grayanus and A. pannonicus) separately. Models of the species indicated good fit by the average high area under the curve (AUC) values (A. grayanus = 0.929 ± 0.087 and A. pannonicus = 0.979 ± 0.007). Precipitation of the driest quarter of the year, mean temperature of the coldest quarter of the year, and precipitation of the driest month variables made important contributions to A. grayanus. Two important climate variables contributed importantly to A. pannonicus; temperature seasonality, and mean temperature of the wettest quarter of the year, and one topographic variable, slope. We conclude that these variables form a natural barrier for species dispersal. The MH and the LGM models indicated a larger suitable area than the current distribution.
The effect of fiber orientation on fracture response of metallic fiber-reinforced adhesive thin films

Incorporation of metallic fibers into the adhesive layer can significantly improve the mechanical behavior of the adhesive joint.This paper aims to assess the fracture behavior of an epoxy adhesive reinforced by longitudinal and lateral metallic fibers.Double cantilever beam (DCB) specimens were used to obtain the fracture energy of both non-reinforced and reinforced adhesives under mode I loading condition.In addition to the fiber orientation,the distance between the metal fibers was considered as the second key parameter in the experiments.It was concluded that although incorporation of metallic fibers in the adhesive layer improves the fracture behavior of neat adhesive,however,higher improvements were observed for the adhesive reinforced with longitudinal fibers.Furthermore,reducing the fiber distances resulted in higher values of fracture energy.
马蹄肾供肾肾移植的研究现状

马蹄肾主要在胚胎发育时,双侧输尿管芽的内侧支互相融合,诱导两侧肾下极或上极融合在一起而形成。尽管存在解剖变异,但大部分马蹄肾具有良好的功能。马蹄肾可作为扩大标准供肾,为解决供肾不足提供一种选择。本文就马蹄肾作为肾移植供肾的特点、国内外现状以及手术经验做一综述。