mlsa-iai-msu-lab/ru_sci_bench_zho_cite_reranking huggingface dataset:
Shaking table test and numerical analysis of offshore wind turbine tower systems controlled by TLCD

A wind turbine system equipped with a tuned liquid column damper (TLCD) is comprehensively studied via shaking table tests using a 1/13-scaled model. The effects of wind and wave actions are considered by inputting responseequivalent accelerations on the shaking table. The test results show that the control effect of the TLCD system is significant in reducing the responses under both wind-wave equivalent loads and ground motions, but obviously varies for different inputs. Further, a blade-hub-tower integrated numerical model for the wind turbine system is established. The model is capable of considering the rotational effect of blades by combining Kane’s equation with the finite element method. The responses of the wind tower equipped with TLCD devices are numerically obtained and compared to the test results, showing that under both controlled and uncontrolled conditions with and without blades’ rotation, the corresponding responses exhibit good agreement. This demonstrates that the proposed numerical model performs well in capturing the wind-wave coupled response of the offshore wind turbine systems under control. Both numerical and experimental results show that the TLCD system can significantly reduce the structural response and thus improve the safety and serviceability of the offshore wind turbine tower systems. Additional issues that require further study are discussed.
Improved Shuffled Frog Leaping Algorithm Optimizing Integral Separated PID Control for Unmanned Hypersonic Vehicle

To solve the flight control problem for unmanned hypersonic vehicles,a novel intelligent optimized control method is proposed.A flight control system based on integral separated proportional-integral-derivative(PID) control is designed for hypersonic vehicle,and an improved shuffled frog leaping algorithm is presented to optimize the control parameters.A nonlinear model of hypersonic vehicle is established to examine the dynamic characteristics achieved by the flight control system.Simulation results demonstrate that the proposed optimized controller can effectively achieve better flight control performance than the traditional controller.
Gyroscope Fault Diagnosis Using Fuzzy SVM to Unbalanced Samples

A novel fuzzy support vector machine based on unbalanced samples(FSVM-US)is proposed to solve the high false positive rate problem since the gyroscope output is susceptible to unmanned aerial vehicle(UAV)airborne electromagnetic environment and the gyroscope abnormal signal sample is rather rare.Firstly,the standard deviation of samples projection to normal vector for SVM classifier hyper plane is analyzed.The imbalance feature expression reflecting the hyper plane shift for the number imbalance between samples and the dispersion imbalance within samples is derived.At the same time,the denoising factor is designed as the exponential decay function based on the Euclidean distance between each sample and the class center.Secondly,the imbalance feature expression and denoising factor are configured into the membership function.Each sample has its own weight denoted the importance to the classifier.Finally,the classification simulation experiments on the gyroscope fault diagnosis system are conducted and FSVM-US is compared with the standard SVM,FSVM,and the four typical class imbalance learning(CIL)methods.The results show that FSVM-US classifier accuracy is 12%higher than that of the standard SVM.Generally,FSVM-US is superior to the four CIL methods in total performance.Moreover,the FSVMUS noise tolerance is also 17%higher than that of the standard SVM.
UAV Velocity Measurement for Ground Moving Target

To satisfy the demand of measuring the velocity of ground moving target through unmanned aerial vehicle (UAV)electro-optical platform,two velocity measurement methods are proposed.Firstly,a velocity measurement method based on target localization is derived,using the position difference between two points with the advantages of easy deployment and realization.Then a mathematical model for measuring target velocity is built and described by 15variables,i.e.UAV velocity,UAV attitude angular rate,camera direction angular rate and so on.Moreover, the causes of velocity measurement error are analyzed and a formula is derived for calculating the measurement error.Finally,the simulation results show that angular rate error has a strong influence on the velocity measurement accuracy,especially the UAV pitch angular rate error,roll angular rate error and the camera angular altitude rate error,thus indicating the direction for improving velocity measurement precision.
Rare earth metals sorption recovery from uranium in situ leaching process solutions

Sorption characteristics of ion exchange resins 001×7, 005×8, D72 regarding rare earthmetals (REM) during extraction from barren solution of uranium sorption in dynamic conditions were investigated. It was identified that D72 resin capacity on analyzed REM was 2.46 mg?cm~(-3) after passing 220 BV (bed volume) of initial solution with 95 %recovery of element of REM with the lowest affinity. Researches on REM desorption in dynamic conditions from investigated ion exchange resins by solution of 1.7 mol?L~(-1) HNO_3 and 8.0 mol?L~(-1) NH_4NO_3 with 0.2 mol?L~(-1) HNO_3 passing were carried out. It was identified that using desorption solution based on ammonium nitrate allows to achieve acceptable recovery degree of REM from the resin. The possibility of organization of a circulating desorption solution system increases the perspectives of nitrate ammonium solution usage.
Analytic Expression of Geometric Discord in Arbitrary Mixture of any Two Bi-qubit Product Pure States

Quantum correlations in a family of states comprising any mixture of a pair of arbitrary bi-qubit product pure states are studied by employing geometric discord [Phys. Rev. Lett. 105 (2010) 190502] as the quantifier. First, the inherent symmetry in the family of states about local unitary transformations is revealed. Then, the analytic expression of geometric discords in the states is worked out. Some concrete discussions and analyses on the captured geometric discords are made so that their distinct features are exposed. It is found that, the more averagely the two bi-qubit product states are mixed, the bigger geometric discord the mixed state owns. Moreover, the monotonic relationships of geometric discord with different parameters are revealed.
Spin-Orbit Coupled s-Wave Superconductor in One-Dimensional Optical Lattice

We study the topological properties of spin-orbit coupled s-wave superconductor in one-dimensional optical lattice. Compared to its corresponding continuum model, the single particle spectrum is modified by the optical lattice and the topological phase which is characterized by the Majorana edge modes can survive in two regions of the single-particle spectrum. With the help of the self-consistent Bogoliubov-de Gennes calculation in the harmonic trap, we find that the existence of an upper critical magnetic field removes the topological superconductor phase to the trap wings. We also study the effects of nonmagnetic and magnetic impurity on the topological properties, and find the universal behavior of the mid-gap state induced by impurity in the topological superconductor phase in strong scattering limit.
Hydrochemical characteristics and element contents of natural waters in Tibet, China

Sixty water samples (35 groundwater samples, 22 surface water samples and three hot-spring water samples) were collected at 36 points from villages and towns in Lhasa city, Nagchu (Nagqu) prefecture, Ali (Ngari) prefecture and Shigatse (Xigaze) prefecture (Tibet) in 2013 to study the hydrochemical characteristics and element contents of natural waters. The concentrations of elements were determined in the water samples and compared with the concentrations in water samples from other regions, such as southeast Qinghai, south Xinjiang, east Sichuan and west Tibet. The hydrochemical species in different areas were also studied. Water in most parts of Tibet reaches the requirements of the Chinese national standard and the World Health Organization international standard. The pH values of the water samples ranged from 6.75 to 8.21 and the value for the mean total dissolved solids was 225.54 mg/L. The concentration of arsenic in water from Ali prefecture exceeded the limit of both the Chinese national standard and the international standard and the concentration of fluoride in water from Shuanghu exceeded the limit of both the Chinese national standard and the international standard. The main hydrochemical species in water of Tibet is Ca (HCO_3)_2. From south to north, the main cation in water changes from Ca~(2+) to Na~+, whereas the main anions in water change from HCO_3~– to Cl~– and SO_4~(2–). The chemistry of river water and melt water from ice and snow is dominated by the rocks present at their source, whereas the chemistry of groundwater is affected by many factors. Tectonic divisions determine the concentrations of the main elements in water and also affect the hydrochemical species present.
Structural implications of Dpy30 oligomerization for MLL/SET1 COMPASS H3K4 trimethylation

The methylation modifications of histone 3 lysine 4 (H3K4) have essential effects on biological processes including gene expression and transcription, cell cycle progression, and DNA repair. From yeast to mammals, the SET1 and MLL-like (mixed-lineage leukemia) multi-subunit protein complexes, known as SET1 or MLL COMPASS (Schneider et al., 2005), are responsible for H3K4 methylation. In addition to the catalytic SET domain, the SET1 and MLL COMPASS complexes also contain a number of conserved subunits including WDR5 (Cps30), RbBP5 (Cps50), Ash2L (Cps60 or Bre2), and Dpy30 (Cps25 or Sdc1). Dpy30 is an important subunit of MLL/SET1 complexes, where it plays an essential role in both catalyzing H3K4 trimethylation and maintaining the state of trimethylated H3K4. Many regulatory gene loci in undifferentiated embryonic stem cells (ESCs) exhibit both H3K4 and H3K27 methylation modifications, the so-called bivalent marks, which poise the genes for expression (Azuara et al., 2006; Bernstein et al., 2006; Pan et al., 2007). Dpy30 is the subunit that regulates chromosomal H3K4 trimethylation (H3K4me3) throughout the mammalian genome by MLL complexes; deletion of Dpy30 alters the differentiation process of ESCs (Jiang et al., 2011).
Farmland marginalization in the mountainous areas: Characteristics, influencing factors and policy implications

Based on SPOT-5 images, 1:1 million topographic maps, the maps of the returning farmland to forest project and the Chongqing forest project, social and economic statistics, etc., this paper identifies the features and factors influencing farmland marginalization. The results showed: (1) During 2002–2012, the rate of farmland marginalization was 16.18%, which was mainly found in the high areas of northern Qiyao mountains and the medium-altitude areas of southern Qiyao mountains. And this farmland marginalization will increase, associated with non-agriculturalization of rural labourers and aging of the remaining labourers. (2) Elevation, distance radius from villages and road connections had a great influence on farmland marginalization. Farmland marginalization rates showed an increasing trend with the increase of elevation, and 60.88% of the total farmland marginalization area is found at an altitude greater than 1000 m above sea level. The marginalization trend also increases with slope and distance from the distribution network. (3) Farmland area per labourer and the average age of farm labourers were major factors driving farmland marginalization. Farmland transfer and small agricultural machinery sets affect farmland marginalization with respect to management and productivity efficiency. (4) Farmland with “comparativedisadvantage-dominated marginalization” accounted for 55.32% of the total farmland marginalization area, followed by “location-dominated marginalization” (33.80%). (5) According to the specifics of each real situation, different policies are suggested to mitigate the marginalization. A “continuous marginalization” policy will encourage the return of farmland to forest in “terrain-dominated marginalization”. An “anti-marginalization” policy is suggested to create new rural accommodation and improve the rural road system to counteract “terrain-dominated marginalization”. And another “anti-marginalization” policy is planned to improve management and micro-mechanization for “comparative-disadvantage-dominated marginalization”. A new idea was developed to integrate high resolution remote sensing and statistical data with survey information to identify land marginalization and its driving forces in mountainous areas.
Garrulax milnei milnei, a taxon little known in Chinese ornithology

As early as 1874,the French scientist Pere A. David introduced to science a new bird species, Trochalopteron milnei, described as: "Ressemblant au T. formosum du Setchouan, mais ayant le dessus de la tete couleur de cannelle ou d'amadou, et la region parotique blanche" (David, 1874). The bird skin that Pere David collected, and so far deposited in Museum National d'Histoire Naturelle in Paris, was from "Koaten of W Fo-kien", in the current Chinese romanization system, Koaten is spelt as Guadun and Fo-kien spelt as Fujian.
Report on the Hippolytidae Bate (sensu lato) from China seas

Thirty species belonging to 13 genera of three families in the Hippolytidae Bate, 1888 (sensu lato) are reported in the present paper, including two new species and two newly recorded ones from the China seas. The two new species are named as Thinora leptochelus sp. nov. and Thor singularis sp. nov. Thinora leptochelus sp. nov. differs from the only knwon species of the genus, Thinora maldivensis (Borradaile, 1915), by the developed supraorbital tooth and the slender and cone-shaped chelae of the first 2 pereopods. Thor singularis sp. nov. can be dinstingershed from the other members of the genus Thor by the first 2 pereopods with epipods. The two newly recorded species from China seas are Eualus kikuchii Miyake & Hayashi, 1967 and Heptacarpus commensalis Hayashi, 1979.
An AFLP marker linked to the leaf rust resistance gene LrBi16 and test of allelism with Lr14a on chromosome arm 7BL

Leaf rust (LR), caused by Puccinia triticina, is one of the most widespread diseases of common wheat (Triticum aestivum L.) worldwide. The LR resistance gene LrBi16 has been mapped on chromosome arm 7BL in Chinese wheat cultivar Bimai 16 and was closely linked to SSR loci Xcfa2257 and Xgwm344 with genetic distances of 2.8 cM and 2.9 cM, respectively. In the present study, a total of 304 AFLP primer pairs were used to screen Bimai 16 and Thatcher and resistant and susceptible DNA bulks. The polymorphic AFLP marker P-ATT/M-CGC_(173) bp was used to genotype F_2 and F_3 populations to identify markers more closely linked to LrBi16. Marker P-ATT/M-CGC_(173) bp was tightly linked to LrBi16 with a genetic distance of 0.5 cM. As LrBi16 was mapped near the Lr14a locus, 809 F_2 plants from the Bimai 16/RL6013 (Lr14a) cross were inoculated with the Pt pathotype FHNQ to test the allelism of Lr14a and LrBi16. All of the F_2 plants were resistant to FHNQ (IT between; and 2), suggesting that Lr14a and LrBi16 are allelic.
Foliar carbohydrate differs between Picea crassifolia and Sabina przewalskii with the altitudinal variation of Qilian Mountains, China

Nonstructural carbohydrates (NSC) and nitrogen metabolism strongly influence growth and development in plants. The biosynthesis of cellulose and lignin (structural carbohydrates, SC) depends largely on the supply of NSC. We desire to examine which hypothesis, carbon limitation or growth limitation, best fits the alpine plant response between NSC, SC,carbon (C), nitrogen (N) and altitude. We compared the foliar concentrations of carbohydrates, C and N between the leaves of Picea crassifolia (lower-elevation tree-line species) and Sabina przewalskii (high-elevation tree-line species) in their response to changing elevation. Our site was located in the mid-northern area of Qilian Mountains, China. We found that foliar soluble sugar (SG) concentrations were significantly higher in P. crassifolia than in S. przewalskii at the 2,700–3,400 m level. Foliar NSC levels in P. crassifolia increased at the 2,700–3,100 m level, indicating that growth was limited gradually resulting in a surplus of NSC (to conform to GLH), subsequently decreasing at the 3,100–3,400 m level, the assimilation declined leading to C deficit (to conform to CLH). SC (SC metabolism disorders at 3,100–3,400 m), C, N and starch were significantly lower in P. crassifolia than in S. przewalskii. Conversely, foliar SG concentration shows a fall-rise trend with increasing elevation for S. przewalskii. SC concentration in S. przewalskii leaves decreased with an increase of elevation and has a significantly positive correlation to N concentration marking the assimilation of plants. Therefore, the high-elevation tree-line species (S. przewalskii) utilize or store more foliar SG leading to a decrease of SG concentration for survival and growth/regrowth in an adverse environment, higher total C, N, SC, starch contents and lower NSC level.Also, their change trends along the elevational gradient in leaves of S. przewalskii indicate better assimilation strategies for SG use under environmental stress compared to P. crassifolia. This indicates that foliar C metabolism along the elevation follows the principle of the growth-limitation hypothesis (GLH) or carbon limitation hypothesis (CLH), which depends on the acclimation of different alpine life-forms to the environment.
泉州市2004 -2013年突发公共卫生事件监测分析

2004年我国实现了突发事件和传染病疫情的网络直报,现对突发公共卫生事件管理信息系统收集的2004 - 2013年泉州市发生的突发公共卫生事件数据资料进行整理分析,描述其流行特征及监测成效,为今后突发公共卫生事件的防控提供科学依据。
Assessing changes in extreme precipitation over Xinjiang using regional climate model of PRECIS

In this paper, an analysis, with the simulation of PRECIS (Providing Regional Climate for Impact Studies), was made for future precipitation extremes, under SRES (Special Report on Emission Scenarios) A2 and B2 in IPCC (Intergovernmental Panel on Climate Change) AR4. The precipitation extremes were calculated and analyzed by ETCCDI (Climate Change Detection and Indices). The results show that: (1) In Present Scenario (1961–1900), PRECIS could capture the spatial pattern of precipitation in Xinjiang. (2) The simulated annual precipitation and seasonal precipitation in Xinjiang had a significantly positive trend and its variability had been deeply impacted by terrain. There was a strong association between increasing trend and the extreme precipitation's increase in frequency and intensity during 1961–2008. Under SRES A2 and B2, extreme precipitation indicated an increasing tendency at the end of the 21st century. The extreme summer precipitation increased prominently in a year. (3) PRECIS's simulation under SRES A2 and B2 indicated increased frequency of heavy precipitation events and also enhancement in their intensity towards the end of the 21st century. Both A2 and B2 scenarios show similar patterns of projected changes in precipitation extremes towards the end of the 21st century.However, the magnitude of changes in B2 scenario was on the lower side. In case of extreme precipitation, variation between models can exceed both internal variability and variability of different SRES.
基于复杂网络理论的云南省手足口病疫情预测预警模型研究

目的探讨基于复杂网络理论构建的手足口病疫情预测预警模型在云南省手足口病疫情防控中的应用。方法收集2010年5月~2011年5月云南省四个县(区)手足口病疫情相关信息,运用基于复杂网络理论的SIS模型和曲线拟合法,编写出手足口病疫情预测预警模型。试运行模型,对模型预测结果进行验证。结果模型试运行期间(2012年1 ~5月)昆明市官渡区、曲靖市麒麟区、玉溪市新平县和红河州泸西县手足口病发病数区间预测准确率分别为72. 73% 、81. 82%、77. 27%和63. 64%。本研究中<3岁患儿比率增高,高温高湿条件,EV71病毒构成比增加是促进手足口病疫情进展的主要影响因素。结论基于复杂网络理论的手足口病疫情预测预警模型预测监测辖区内手足口病疫情具有一定的准确性,对卫生部门判断手足口病疫情趋势、制定合理防控策略和措施具有一定的参考价值。
某三甲医院148例膝骨关节炎患者就医及治疗现状分析

目的调查和分析骨关节炎(osteoarthritis-OA)患者就医行为特点及治疗状况.方法对安徽医科大学第一附属医院风湿免疫科2012年1月~2013年12月门诊就诊的148例OA患者进行现场调查.内容包括患者的一般资料、发病年龄、首诊及确诊时间、就诊及确诊科室、随诊时间以及治疗情况.结果OA患者男女比例为1∶7.2,平均年龄为(55.1 ±7.9)岁,男女患者发病年龄差异无统计学意义(t=-0.16,P=0.107).患者首次就诊科室以风湿免疫科为最多(54.1%,80/148),其次为骨科(32.4%,48/148),确诊科室以风湿免疫科为最高(97.5%,78/80).仅有8.4%(12/143)患者进行正规门诊随诊.患者使用非甾体(non-steroidal anti-inflammatory drug,NSAIDs)类口服药最多(66.2%,98/148),其次为中药膏药(56.8%,84/148).78.4% OA患者同时采用2种及以上方法进行治疗,8.8% OA患者未采用任何治疗.而患者对非药物治疗,如减肥、运动、生活指导及物理治疗等缺乏重视.结论膝OA患者风湿免疫科就诊比例及确诊率最高,其次是骨科,而在其他科室就诊及确诊率低,OA治疗方式普遍不正规.
~(18)氟-脱氧葡萄糖正电子发射计算机断层成像术在监测结直肠癌术后复发或转移中的应用

目的:探讨~(18)氟-脱氧葡萄糖正电子发射计算机断层成像术(~(18)F-FDG PET-CT)对于结直肠癌患者术后复发或转移的临床应用价值。方法回顾性分析2009年1月至2013年12月天津医科大学肿瘤医院行~(18)F-FDG PET-CT检查的250例结直肠癌术后患者的临床资料,按照检查前1周内血清癌胚抗原(CEA)是否升高分为低CEA组(CEA小于5μg/L,128例)和高CEA组(CEA大于或等于5μg/L,122例)。分析~(18)F-FDG PET-CT显像对结直肠癌术后复发或转移的诊断价值。结果250例结直肠癌术后患者中有166例确诊存在复发或转移,84例未发现复发或转移。低CEA组与高CEA组诊断转移或复发的灵敏度分别为98.5%和99.0%,特异度分别为88.9%和85%,阳性预测值分别为90.1%和97.1%,阴性预测值分别为98.2%和94.4%,准确率分别为93.8%和96.7%;两组准确率比较,差异无统计学意义(P=0.64)。结论不论CEA水平升高或正常,~(18)F-FDG PET-CT显像对结直肠癌患者术后复发或转移均具有较高的灵敏度与准确性。
从脾肾相关治疗少弱精子症心得

从邓铁涛教授提出的五脏相关学说出发,尤其是对脾肾相关理论进行深入探讨,并结合现代医学研究阐释少弱精子症的发病机理,认为少弱精子症不应一味补肾,当从脾肾论治,辨病与辨症互参,辨证与辨精结合,药治与食疗同用,且就加味聚精食疗方及益气活精方在不育症中的应用,阐释导师陈德宁教授的临床经验。
肾移植患者术后抑郁的影响因素及心理干预效果

目的:探讨肾移植患者术后抑郁的发生情况及其影响因素和评价心理干预治疗的效果。方法选取2010年1月至2013年12月该院门诊随访的250例肾移植患者,采用一般调查问卷、自评抑郁量表(SDS)、社会支持量表(SSRS)对肾移植患者进行调查,回顾性分析患者性别、年龄、婚姻状况、文化程度、医疗费用来源、家庭经济收入、并发症、社会支持等相关因素对患者抑郁的影响。对肾移植术后的抑郁患者(104例)随机分为对照组(常规干预)和干预组(心理干预)各52例,分析对比两组患者干预前后抑郁情况。结果肾移植患者术后抑郁的发生率为41.6%(104/250);250例肾移植患者术后抑郁平均分远高于普通的正常人群(P<0.05);单因素分析结果显示,医疗费用来源、家庭月收入、并发症、社会支持得分与肾移植患者术后抑郁的发生有关;多因素分析结果显示,并发症和社会支持得分是肾移植患者术后抑郁的危险因素;干预后,对照组和干预组SDS得分均显著低于干预前(P<0.05);实施12 w认知干预后,干预组SDS得分显著低于对照组(P<0.05)。结论肾移植患者术后容易产生抑郁,影响肾移植患者术后抑郁的危险因素有并发症、社会支持得分。对肾移植术后的抑郁患者实施心理干预能降低其抑郁程度。
健身运动对健康老年人动脉血管弹性的影响

目的:研究规律健身运动对老年人动脉血管弹性的影响。方法以杭州市54例年龄从70~79周岁的健康男性为研究对象,其中规律健身运动组22例,静态组32例。 Colin VP-1000动脉硬化诊断仪检测上臂-脚踝间的脉搏传导速度(baPWV);Inbody3.0身体成分分析仪检测体重、体脂%;“健民”国民体质检测仪检测身高和握力。所有数据用SPSS13.0进行统计分析。结果健身运动组 baPWV明显低于静态组〔(12.3±1.18)m/s与(14.6±1.41)m/s,t=-7.9,P<0.01〕。 baPWV与运动频率和握力显著相关(r=0.64,P<0.01;r=0.40,P<0.05)。健身运动组,baPWV与体脂%显著相关(r=0.76,P<0.01);静态组,baPWV与BMI指数(r=0.62,P<0.05)、体脂%(r=0.86,P<0.05)显著相关。结论健身运动改善了老年人动脉血管弹性程度,且运动频率越高、肌肉力量越大,血管弹性越好;伴随肥胖的产生,动脉血管弹性下降。
右大腿股外侧肌内非典型颗粒细胞瘤1例

2.3鉴别诊断 GCT 需与以下疾病鉴别:①恶性纤维组织细胞瘤:肿瘤T1WI 病灶边界不清,呈中等信号,T2WI 呈混杂高信号,坏死、出血并瘤周水肿常见;②滑膜肉瘤:肿瘤呈团块状或分叶状,T1WI 呈等或稍高不均匀信号;T2WI 呈高或稍高信号为主的混杂信号,其内可见分隔;增强扫描后明显的不均匀强化;③平滑肌肉瘤:多位于深部软组织,生长较迅速,瘤体内多有囊变坏死区,且血供丰富,一般表现为不均匀信号,强化明显;④孤立性韧带样维瘤:平扫及增强T1WI 和T2WI 上显示低信号纤维成分,一般不强化或轻度强化;⑤神经鞘瘤:多发生于周围神经束支,边界一般较清楚,瘤体内较多坏死囊变区,信号常不均匀,血供丰富,强化明显。
优质杂交水稻川优6203特征特性及高产栽培技术

川优6203是四川省农业科学院作物研究所用优质不育系川106A与抗病恢复系成恢3203配组育成的中籼迟熟杂交水稻新组合,2011年通过四川省审定(川审稻2011002)。在四川荣县作中稻+再生稻种植,表现出丰产性好、适应性广、再生力强、米质优、抗性强等特点。介绍了该组合特征特性及配套高产栽培技术。
两系杂交早稻新组合两优6号春制高产技术

两优6号是湖北荆楚种业股份有限公司育成的优质高产两系杂交早稻组合,2011年10月通过国家农作物品种审定。经过几年制种实践,概述了双亲的特征特性,总结了其高产制种技术。
星形胶质细胞在听觉形成及听觉中枢重塑中的作用

星形胶质细胞(astrocyte,Ast)为中枢神经系统中一类具有辐射状星形突起的细胞群体,是神经胶质细胞的主要类型。星形胶质细胞在中枢神经系统的作用体现在以下方面:通过神经元细胞间隙中离子浓度的改变调节神经元的兴奋性;通过缝隙连接与神经元相互作用,并分泌多种神经活性物质,促进神经元的发育;利用神经活性氨基酸载体,调控突触间隙神经递质的摄取与清除,维持神经元间突触传递效能 ;诱导成年神经干细胞的神经发生及突触形成 ;参与中枢神经系统感觉信息处理。近年来的研究发现,星形胶质细胞在听觉形成与听觉中枢重塑过程中有着不可或缺的作用。为此,本文对星形胶质细胞在听觉形成及听觉中枢重塑中的作用研究进展进行综述。
MsrA 在胃癌组织中的表达及意义

目的:探讨MsrA 在胃癌组织及癌旁正常胃黏膜组织中的表达及意义。方法:采用免疫组织化学法和实时荧光定量RT-PCR 法检测57例胃癌组织与癌旁正常胃黏膜组织中 MsrA的表达。结果:胃癌组织中MsrA的表达率及表达强度均低于癌旁正常胃黏膜组织(P<0.001);胃癌组织 MsrA mRNA 相对量的中位数为3.757,癌旁正常胃黏膜组织中MsrA mRNA 相对量的中位数为5.240,胃癌组织中MsrA mRNA的表达水平低于癌旁正常胃黏膜组织(P=0.016)。结论:胃癌组织中MsrA的表达水平较正常组织下调。
三苯氧胺治疗老年男性晚期乳腺癌患者1例报道

男性乳腺癌是一种罕见疾病,其发病率不及乳腺癌的1%。美国研究者通过分析SEER数据库数据后发现,男性乳腺癌的生物学特征不同于女性,分析显示,男性乳腺癌的中位发病年龄(67岁)略高于女性(61岁),与乳腺癌较晚分期相关的特征(肿瘤>2 cm和腋窝淋巴结阳性)在男性乳腺癌中更常见,而与晚期生物学特征相关的变量[雌激素受体(ER)阴性、肿瘤分级较高]在女性乳腺癌中更常见,女性和男性乳腺癌的ER阴性率分别为23%和7.6%。男性乳腺癌患者的激素受体(ER、PR)阳性率高于女性患者,HER2阳性在男性乳腺癌患者中也更常见。此外还有男性乳腺癌患者发病年龄较晚,诊断时分期较晚,患者的生存情况较女性乳腺癌患者差,总体5年生存率为68.5%~87.5%。