mlsa-iai-msu-lab/ru_sci_bench_zho_cite_reranking huggingface dataset:
游离骨间后动脉双皮瓣移植修复两指软组织缺损

目的总结游离骨间后动脉双皮瓣移植修复两指软组织缺损的临床疗效。方法2016年7月-2018年1月,多指软组织损伤8例,术前CDU穿支定位下设计骨间后动脉双皮瓣,术中每块皮瓣均以骨间后动脉及其发出的皮支单独供血。皮瓣切取范围为2.0 cm×5.5 cm~4.5 cm×9.0 cm,双皮瓣修复两个手指创面后分别单独吻合动脉、静脉及神经。前臂背侧供区宽度小于3.0 cm的创面直接缝合,大于3.0 cm的创面需全厚皮片移植修复,术后定期随访。结果本组中8例共16块皮瓣均顺利成活,创面均I期愈合。所有病例术后均获随访5~14个月,平均10个月。皮瓣外形、质地均良好,末次随访时,皮瓣两点辨别觉为8~12 mm。术后各指各关节活动基本正常。供区线状瘢痕愈合无并发症,手部握力未见减弱。结论游离前臂中远段骨间后动脉双皮瓣移植修复两指软组织缺损,手术在同侧肢体完成,不损伤主干血管,术后效果满意,是修复两个手指中、末节软组织缺损的一种较好方法。
Nicotine dependence in communitydwelling Chinese patients with schizophrenia

Background Smoking is a serious public health problem. Patients with schizophrenia usually have a higher prevalence of smoking than the general population, but the level of nicotine dependence is seldom studied, especially for patients living in the communities. Aims This study aimed to examine the level of nicotine dependence in Chinese community-dwelling patients with schizophrenia and explored its associated sociodemographic and clinical factors. Methods A total of 621 patients with schizophrenia treated in the primary care centres of Guangzhou were consecutively recruited. The level of nicotine dependence was assessed with the Chinese version of the Fagerstrom Test for Nicotine Dependence (FTND). Results 148 patients with schizophrenia were current smokers, and the mean (SD) score of FTND was 5.06 (2.55) for all the current smokers. The prevalence of nicotine addiction was 48.0% (95% CI: 40.0%-56.0%) in patients with current smoking. The patients with schizophrenia had a significantly higher level of nicotine dependence than the Chinese general population. Multiple linear regression analysis revealed that male gender, being unemployed, having a family history of psychiatric disorders, having major medical conditions, first illness episode and less severe positive symptoms were significantly associated with a higher level of nicotine dependence. Conclusion Community-dwelling patients with schizophrenia in China, especially male patients, had a higher level of nicotine dependence than the general population.
Evaluation of intraoperative MRI-assisted stereotactic brain tissue biopsy: a singlecenter experience in China

Background: This study aimed to investigate the value of high field-strength intraoperative magnetic resonance imaging (iMRI)-guided stereotactic biopsy in the surgery of intracranial space-occupying lesions. Methods: A total of 87 patients who underwent stereotactic biopsy of intracranial lesions in the Peking University International Hospital from March 2016 to August 2018 were retrospectively surveyed; among these, 50 patients underwent MRI-guided stereotactic biopsy using the Leksell frame (iMRI group) and 37 cases received traditional stereotactic biopsy using the Leksell frame (control group). The accuracy rates and complications of the two groups were compared. Results: A 100% positive diagnosis was observed in all cases (n = 50) in the iMRI group. In 4 cases, the biopsy site was clearly found to have deviated from the target point, and the biopsy was performed again. The control group had 33 cases (86.5%) with positive diagnosis. No severe complications like neural functional deficit were observed in the iMRI group, while two patients developed bleeding at the puncture site (1 case receiving surgery to remove the hematoma) in the control group. There were no deaths in either group. Conclusion: iMRI-assisted stereotactic biopsy can confirm the target position and adjust the puncture path in real time. Compared to the traditional stereotactic biopsy technique, the iMRI method has a higher positive diagnostic rate, though surgical trauma and complications have no significant difference.
Distributed adaptive Kalman filter based on variational Bayesian technique

In this paper,distributed Kalman filter design is studied for linear dynamics with unknown measurement noise variance,which modeled by Wishart distribution.To solve the problem in a multi-agent network,a distributed adaptive Kalman filter is proposed with the help of variational Bayesian,where the posterior distribution of joint state and noise variance is approximated by a free-form distribution.The convergence of the proposed algorithm is proved in two main steps:noise statistics is estimated,where each agent only use its local information in variational Bayesian expectation (VB-E) step,and state is estimated by a consensus algorithm in variational Bayesian maximum (VB-M) step.Finally,a distributed target tracking problem is investigated with simulations for illustration.
Adaptive dynamic programming for finite-horizon optimal control of linear time-varying discrete-time systems

This paper studies data-driven learning-based methods for the finite-horizon optimal control of linear time-varying discretetime systems.First,a novel finite-horizon Policy Iteration (PI) method for linear time-varying discrete-time systems is presented.Its connections with existing infinite-horizon PI methods are discussed.Then,both data-driven off-policy PI and Value Iteration (VI) algorithms are derived to find approximate optimal controllers when the system dynamics is completely unknown.Under mild conditions,the proposed data-driven off-policy algorithms converge to the optimal solution.Finally,the effectiveness and feasibility of the developed methods are validated by a practical example of spacecraft attitude control.
Single-Valued Neutrosophic Lie Algebras

A single-valued neutrosophic (SVN) set is a powerful general formal framework that generalizes the concept of fuzzy set and intuitionistic fuzzy set. In SVN set, indeterminacy is quantified explicitly, and truth membership, indeterminacy membership, and falsity membership are independent. In this paper, we apply the notion of SVN sets to Lie algebras. We develop the concepts of SVN Lie subalgebras and SVN Lie ideals. We describe some interesting results of SVN Lie ideals.
How changes of groundwater level affect the desert riparian forest ecosystem in the Ejina Oasis,Northwest China

Groundwater is a key factor controlling the growth of vegetation in desert riparian systems.It is important to recognise how groundwater changes affect the riparian forest ecosystem.This information will not only help us to understand the ecological and hydrological process of the riparian forest but also provide support for ecological recovery of riparian forests and water-resources management of arid inland river basins.This study aims to estimate the suitability of the Water Vegetation Energy and Solute Modelling (WAVES) model to simulate the Ejina Desert riparian forest ecosystem changes,China,to assess effects of groundwater-depth change on the canopy leaf area index (LAI) and water budgets,and to ascertain the suitable groundwater depth for preserving the stability and structure of desert riparian forest.Results demonstrated that the WAVES model can simulate changes to ecological and hydrological processes.The annual mean water consumption of a Tamarix chinensis riparian forest was less than that of a Populus euphratica riparian forest,and the canopy LAI of the desert riparian forest should increase as groundwater depth decreases.Groundwater changes could significantly influence water budgets for T.chinensis and P.euphratica riparian forests and show the positive and negative effects on vegetation growth and water budgets of riparian forests.Maintaining the annual mean groundwater depth at around 1.7-2.7 m is critical for healthy riparian forest growth.This study highlights the importance of considering groundwater-change impacts on desert riparian vegetation and water-balance applications in ecological restoration and efficient water-resource management in the Heihe River Basin.
The analysis of heat and water fluxes in frozen silty soil

In this paper,based on the basic equations of water flow and heat transfer,the hydrothermal coupling model is established.The numerical model was realized in COMSOL Multiphysics software,and simulation results are compared with the experimental results of Watanabe and Wake (2008) to verify the effectiveness of the model.Through the calculation,we can obtain the dynamic changes of heat and water fluxes,thermal and hydrological properties,matric potential and temperature gradient in unsaturated freezing soil;and these variables are unmeasurable in practice.
Aberrant cell cycle induction is pivotal for mitochondrial biogenesis after traumatic brain injury

Cell cycle regulation and brain injury: Traumatic brain injury(TBI) is one of the primary causes of morbidity and mortality in patients, and it affects more than 1.7 million Americans each year. Other than direct damage resulting from TBI, the brain injury triggers several secondary mechanisms which either individually or in combination contribute to the neurological deficits after TBI(Gupta and Sen, 2016). These secondary mechanisms include neuronal death and stimulate proliferation of astrocytes and microglial cells, which in turn triggers neuro-inflammation(Simon et al., 2017). The association between proliferation of dividing cells like astrocytes and microglia with cell cycle has already been highlighted in a recent publication(Simon et al., 2017). However, in this article, we will emphasize the importance of cell cycle in post-mitotic cells like mature neurons following brain injury.
The glutamate biosynthetic pathway in brain: a novel mechanism of moderate UV-induced neurobehavioral changes

Using single-cell mass spectrometry technology, Zhu et al. [1] recently revealed that a novel intra-neuronal glutamate (GLU) biosynthetic pathway contributes to sunlight ultraviolet (UV)-induced neurobehavioral effects. In the study, moderate UV exposure was found to increase blood levels of urocanic acid (UCA), which may cross the blood-brain barrier (BBB). Subsequently, UCA promotes GLU biosynthesis and release in various brain regions, including motor cortex and hippocampus. Strikingly, UV exposure improves motor learning and object recognition memory. The inhibitor against urocanase, an enzyme critical for the conversion of UCA to GLU, reverses the UV exposure-related neurological effects. Thus, the activation of UCA-GLU metabolic pathway mediates the process of UV-triggered neurobehavioral changes (Fig. 1).
Production of Two Elite Glutinous Rice Varieties by Editing Wx Gene

The waxy gene (Wx) in rice,which encodes the granule bound starch synthase enzyme,is responsible for amylose synthesis.Glutinous (sticky) rice has little or no amylose that can be used in various applications,such as brewing.In this study,knockout of the Wx gene with CRISPR/Cas9 technology was conducted in two elite japonica rice lines,Huaidao 5 (HD5) and Suken 118 (SK118),aiming to develop elite sticky rice varieties.We achieved six homozygous T_0 plants with more than 200 bp deletion in the Wx gene,as well as 36 wx-HD5 and 18 wx-SK118 homozygous transgene-free plants in the T1 generation.The seeds of all the mutants were white and opaque,similar to those of sticky rice,and contained only 2.6%-3.2% amylose.Results of scanning electron microscopy showed that the quality of rice did not change.In conclusion,we successfully developed two elite sticky rice varieties.
The impacts of gas impurities on the minimum miscibility pressure of injected CO_2-rich gas–crude oil systems and enhanced oil recovery potential

An effective parameter in the miscible-CO_2 enhanced oil recovery procedure is the minimum miscibility pressure(MMP) defined as the lowest pressure that the oil in place and the injected gas into reservoir achieve miscibility at a given temperature. Flue gases released from power plants can provide an available source of CO_2, which would otherwise be emitted to the atmosphere, for injection into a reservoir. However, the costs related to gas extraction from flue gases is potentially high. Hence, greater understanding the role of impurities in miscibility characteristics between CO_2 and reservoir fluids helps to establish which impurities are tolerable and which are not. In this study, we simulate the effects of the impurities nitrogen(N_2), methane(C_1), ethane(C_2) and propane(C_3) on CO_2 MMP. The simulation results reveal that, as an impurity, nitrogen increases CO_2–oil MMP more so than methane. On the other hand, increasing the propane(C_3) content can lead to a significant decrease in CO_2 MMP, whereas varying the concentrations of ethane(C_2) does not have a significant effect on the minimum miscibility pressure of reservoir crude oil and CO_2 gas. The novel relationships established are particularly valuable in circumstances where MMP experimental data are not available.
Tertiary hydrothermal activity and its effect on reservoir properties in the Xihu Depression, East China Sea

Three large-scale episodes of volcanic activity occurred during the Tertiary in the Xihu Depression, located in the East China Sea. Intermediate-felsic magmas intruded along faults and the associated hydrothermal fluids resulted in the hydrothermal alteration of the clastic country rock. To better describe reservoir characteristics, reservoir samples were subjected to the following investigations: thin section examination, scanning electron microscope-energy dispersive spectrometer analysis(SEM–EDS), fluid inclusion homogenization temperature tests, vitrinite reflectance measurements, and X-ray diffraction. The results of this study provide evidence of the following hydrothermal alteration phenomena: brittle fracturing, clastic particle alteration, precipitation of unique hydrothermal minerals(celestite, zircon, apatite, barite, and cerous phosphate). The presence of abnormally high temperatures is indicated by fluid inclusion analysis, the precipitation of high-temperature authigenic minerals such as quartz, illite alteration, and anomalous vitrinite reflectance. Two aspects related to hydrothermal effects on reservoir properties have been investigated in this study:(1) Deep magmatic hydrothermal fluids carry large amounts of dissolved carbon dioxide and sulfur dioxide gas. These fluids percolate into the country rocks along fault zones, resulting in dissolution within the sandstone reservoirs and the development of significant secondary porosity.(2) Magma intrusions increase the temperature of the surrounding rocks and accelerate the thermal evolution of hydrocarbon source rocks. This results in the release of large amounts of organic acids and carbon dioxide, leading the dissolution of the aluminosilicate minerals and volcanic fragments in the reservoirs, and the generation of significant secondary porosity.
Viscous fingering and its effect on areal sweep efficiency during waterflooding: an experimental study

Viscous fingering is one of the main challenges that could reduce areal sweep efficiency during waterflooding in oil reservoirs. A series of waterflooding experiments were carried out in a Hele-Shaw cell at ambient temperature during which areal sweep efficiency was estimated and techniques to ease the fingering problem were examined. The onset and propagation of viscous fingers were monitored as a function of both injection rate and injection/production positions. Image processing techniques were utilized to quantitatively investigate the propagation of fingers. The experimental results show that, under specific conditions, increasing the number of finger branches could improve the areal sweep efficiency, whereas growth of a single narrow finger has a negative impact on oil displacement efficiency. According to the obtained results, increasing the injection rate improves the areal sweep efficiency up to a critical rate at which viscous fingers start to grow. The impact of heterogeneity of the medium on distributing the viscous fingers was also investigated by introducing two different arrangements of fractures in the model. The results show that fractures perpendicular to the direction of flow would distribute the displacing water more uniformly, while fractures in the direction of flow would amplify the unfavorable sweep efficiency.
Sedimentary environment controls on the accumulation of organic matter in the Upper Ordovician Wufeng–Lower Silurian Longmaxi mudstones in the Southeastern Sichuan Basin of China

The Upper Ordovician–Lower Silurian mudstones(including the Wufeng, Guanyinqiao and Longmaxi Formations) in the Sichuan Basin are some of the most important shale gas plays in China. In order to enhance our understanding of the process of formation of organic carbon up to 10%, optical, microscopy and geochemical methods have been used to investigate the petrographic and geochemical characteristics of the formation. Firstly, three mudstone lithofacies were identified based on a wide variety of mudstone laminations. These are:(a) indistinctly laminated mudstone;(b) parallellaminated mudstone; and(c) nonparallel-laminated mudstone. Then, combining with the evidence from depocenter migration, Th/U ratios and total organic carbon, the abundant organo-minerallic fabrics suggest that organic carbon was preferentially deposited and preserved in anoxic, low energy and stagnant water conditions during deposition of the Wufeng and Longmaxi Formations. On the contrary, the Guanyinqiao Formation with poor organic carbon was deposited in oxic and high-energy water conditions.
Invasive strategy in elderly patients with acute coronary syndrome in 2018: close to the truth?

Elderly population constitutes an increasingly larger proportion of patients admitted for acute coronary syndromes (ACS). The optimal management of ACS in these patients is still a challenge due to their clinical peculiarities and the paucity of specific data, and they have been traditionally managed more conservatively mainly based on subjective criteria. In ST-segment elevation acute myocardial infarction urgent reperfusion is the standard of care and there is no upper age limit. In non-ST segment elevation acute myocardial infarction evidence is controversial, incomplete and mainly focused on chronological age. While a strict conservative strategy should be avoided, routine invasive strategy may reduce the occurrence of myocardial infarction and need for revascularization at follow-up with no established benefit in terms of mortality. Clinical characteristics associated with aging, such as comorbidities and frailty, further discriminate patient’s risk beyond age. Evidence is scarce, but it suggests that these features may modulate the benefit of invasive strategy in this population. Ongoing trials should clarify the optimal management of ACS based on these parameters.
足底压力分析在慢性踝关节不稳诊疗中的研究进展

慢性踝关节不稳(chronic ankle instability,CAI)表现为踝关节反复扭伤,严重影响人体日常生活及运动能力。通过查体、MRI以及应力位X线片,慢性踝关节不稳可以分成功能性、机械性、混合性三种类型。本文通过分析CAI患者的足底压力分布参数的变化,研究病足成因及病程衍变,预测外科术后及康复训练疗效,探讨未来CAI诊疗发展趋势。
Remote open-path laser-induced breakdown spectroscopy for the analysis of manganese in steel samples at high temperature

A remote open-path laser-induced breakdown spectroscopy (LIBS) system was designed and studied in the present work for the purpose of combining the LIBS technique with the steel production line.In this system,the relatively simple configuration and optics were employed to measure the steel samples at a remote distance and a hot sample temperature.The system has obtained a robustness for the deviation of the sample position because of the open-path and all-optical structure.The measurement was carried out at different sample temperatures by placing the samples in a muffle furnace with a window in the front door.The results show that the intensity of the spectral lines increased as the sample temperature increased.The influence of the sample temperature on the quantitative analysis of manganese in the steel samples was investigated by measuring ten standard steel samples at different temperatures.Three samples were selected as the test sample for the simulation measurement.The results show that,at the sample temperature of 500°C,the average relative error of prediction is 3.1% and the average relative standard deviation is 7.7%,respectively.
基于PGC-1α 信号通路RNA干扰研究功法静力性训练对老年大鼠上肢运动能力的影响

目的探索在过氧化物酶体增殖物激活受体γ 辅激活因子lα(PGC-1α)信号通路在RNA干扰下,功法静力性训练对大鼠上肢运动能力的影响。方法利用MD3000生物信号采集系统对5通道的静力性训练装置内力学传感器进行控制,记录功法组,对照组共20只大鼠为期8周的训练情况。结果两组大鼠体重经过训练显著性下降,功法组抓力体重比相对首次训练提升较快(P=0.042),对照组则变化不显著。两组单次训练时间差异在第2周和第4周具有统计学意义(P< 0.05),在第6周开始数据趋同(P >0.05);两组单次休息时间在第8周最为显著(P=0.009)。结论长期功法静力性训练能延长大鼠上肢训练时间,提高训练效率,增强肌肉耐力,降低大鼠体重,抑制PGC-1α 信号通路的RNA干扰会对大鼠上肢训练效能降低产生的负面影响。
Hydrogen Production Using ‘‘Direct-Starting'' Biocathode Microbial Electrolysis Cell and the Analysis of Microbial Communities

In this study, a ‘‘direct-starting'' procedure was used to activate a single-chamber biocathode microbial electrolysis cell (MEC) and the development of a biocathode was studied through output current curves and cyclic voltammograms. It only took 163 h for a successful start-up, and a current density of 14.75 A/m~2 was obtained. In the formal hydrogen-production stage, it was found that the biocathode MEC was comparable with the Pt/C cathode MEC in terms of current density and energy efficiency, and the hydrogen recovery, cathodic hydrogen recovery, and hydrogen production rate of the biocathode MEC were 71.22% ± 8.98%, 79.42% ± 5.94%, and 0.428 ± 0.054 m~3 H_2/m~3 · days, respectively, which were slightly higher than those obtained with the Pt/C cathode MEC. Besides, under the effect of applied voltage, the microbial populations in the anodophilic biofilm of MEC (MECan) and the cathodophilic biofilm of MEC (MECca) were less diverse than those of the original aerobic activated sludge (AAS) and the anodophilic biofilm of MEC (MECan). Furthermore, the microbial community structures evidently differed between MECan/MECca and AAS/MFC.
Fabrication of Al-Coated Mg-Li Alloy Sheet and Investigation of Its Properties

An Al-coated Mg-8 mass% Li alloy rectangular bar was fabricated by hot extrusion, and then, it was hot-rolled into a thin sheet. The Al coating was uniform in thickness and had good bonding with the substrate during all the processing. This Alcoated Mg-Li alloy exhibited a good corrosion resistance in a 0.5 mass% HCl aqueous solution. No intermetallic compound was observed at the Al/Mg-Li interface after the extrusion and the rolling. The Al-coated Mg-Li alloy sheet exhibited an elongation to fracture of 35% at room temperature at a strain rate of 0.001 s~(-1) without any debonding between the coating and the substrate. When tensile tested at 573 K at 0.001 s~(-1) in the air, the Al coating remained undamaged even until an elongation of about 150%. Further elongation generated cracks on the coating and the specimen fractured at an elongation of about 200%. In an Ar atmosphere, the specimen exhibited a fracture elongation of over 400% under the same conditions at 573 K at 0.001 s~(-1), although a large number of cracks generated on the Al coating.
Compactness for the commutators of multilinear singular integral operators with non-smooth kernels

In this paper, the behavior for commutators of a class of bilinear singular integral operators associated with non-smooth kernels on the product of weighted Lebesgue spaces is considered. By some new maximal functions to control the commutators of bilinear singular integral operators and CMO(R n) functions, compactness for the commutators is proved.