mlsa-iai-msu-lab/ru_sci_bench_zho_cite_reranking huggingface dataset:
Isoflurane preconditioning protects against ischemia-reperfusion injury partly by attenuating cytochrome c release from subsarcolemmal mitochondria in isolated rat hearts

To examine if isoflurane preconditioning can attenuate ischemia/reperfusion injury by reducing cytochrome c release from inner mitochondrial membrane. Methods: Isolated hearts of Sprague-Dawley rats were perfused on Langendorff apparatus. Hearts were randomly assigned to a non-treated group (CON group, n=12) or three isoflurane preconditioning groups (0.5% ISC group, 1.0% ISC group, and 2.0% ISC group; n=12). In the latter three groups, isoflurane was given at concentrations of 0.5%, 1.0%, and 2.0% for 15 min with 15-min washout before 30-min ischemia. Subsarcolemmal mitochondria of the myocardium were isolated after 60-min reperfusion. Hemodynamics of the each heart was recorded, infarct size of the hearts and contents of cytosolic cytochrome or mitochondrial cytochrome c were measured at the end of reperfusion. Morphology of isolated mitochondria in the four groups was evaluated, respectively. Results: Compared with the CON group, cytosolic cytochrome c in 0.5% ISC group, 1.0% ISC group, and 2.0% ISC group were significantly decreased along with a significant increase of mitochondrial cytochrome c. Infarct size of the hearts in the four groups were 56%±12%, 41%±12%, 32%±7% and 33%±11%, respectively. The values of the three isoflurane preconditioning groups were significantly lower than that of the CON group (P<0.05). Isoflurane exposure before ischemia can attenuate the change of morphology of mitochondria after reperfusion. The effects of 2.0% isoflurane on reducing cytochrome c release were more remarkable than 0.5% and 1.0% concentrations of isoflurane. Conclusion: Myocardioprotective effects of isoflurane preconditioning were associated with attenuation of cytochrome c loss from the inner membrane of subsarcolemmal mitochondria.
Effects of simvastatin on cardiac performance and expression of sarco-plasmic reticular calcium regulatory proteins in rat heart

Aim: To investigate the effect of simvastatin on the cardiac contractile function and the alteration of gene and protein expression of the sarcoplasmic calcium regulatory proteins, including sarcoplasmic reticulum Ca2+-ATPase (SERCA), phospholamban (PLB), and ryanodine receptor 2 (RyR2) in rat hearts.Methods: Langendorff-perfused rat hearts were subjected to 60-min perfusion with different concentrations of simvastatin (1, 3, 10, 30, or 100 μmol/L), and the parameters of cardiac function such as left ventricular developed pressure (LVDP), +dp/dtmax, and -dp/dtmax were determined. The cultured neonatal rat ventricular cardiomyocytes were incubated with simvastatin (1,3,10,30, and 100 μmol/L) for 1 h or 24 h. The levels of SERCA, PLB, and RyR2 expression were measured by reverse transcription-polymerase chain reaction and Western blot. Cytotoxic effect of simvastatin on ventricular cardiomyocytes was assessed by the MTT colorimetric assay.Results: LVDP, +dp/dtmax, and -dp/dtmax of hearts were increased significantly after treatment with simvastatin 3, 10, and 30 μmol/L. In simvastatin-treated isolated hearts, the levels of mRNA expression of SERCA and RyR2 were elevated compared with the control (P<0.05), while the mRNA expression of PLB did not change. After the cultured neonatal rat ventricular cardiomyocytes were incubated with 3,10,30, and 100 μmol/L simvastatin for 1 h, SERCA and RyR2 mRNA expressions of cardiomyocytes rose, but there was no alteration in protein expressions. However, with the elongation of simvastatin treatment to 24 h, the protein expression of SERCA and RyR2 were also elevated. Additionally, simvastatin (1-30 μmol/L) had no influence on cell viability of cultured cardiac myocytes, but simvastatin 100 μmol/L inhibited the cell viability.Conclusion: Simvastatin improved cardiac performance accompanied by the elevation of SERCA and RyR2 gene and protein expression.
Antibody engineering: facing new challenges in cancer therapy

Antibody-based therapeutics are beginning to realize the promise enclosed in their early denomination as "magic bullets". Initial disappointment has turned into clinical and commercial success, and engineered antibodies currently represent over 30% of biopharmaceuticals in clinical trials. Recent structural and functional data have allowed the design of a new generation of therapeutic antibodies, with strategies ranging from complement-mediated and antibody-dependant cellular cytotoxicity enhancement to improved cytotoxic payloads using toxins, drugs, radio nuclides and viral delivery. This review considers the structure of different types of recombinant antibodies, their mechanism of action and how their efficacy has been increased using a broad array of approaches. We will also focus on the additional benefits offered by the use of gene therapy methods for the in vivo production of therapeutic antibodies.
The OH Maser Line Receiving System for the Urumqi 25m Radio Telescope

A maser spectral line system is newly implemented on the Urumqi 25m Radio Telescope. The system consists mainly of a cooling receiver and a 4096 channels digital correlation spectrometer. The frequency resolution of the spectrometer at the maximum signal bandwidth of 80MHz is 19.5kHz. After careful calibrations observation at the 1665 MHz OH maser emission was made towards a number of sources, including W49N and W75N. The observed results demonstrate that the digital correlation spectrometer is suitable for astronomical spectral line observations.
Perfect high throughput screening assay： a crucial technique for drug discovery

Since being developed approximately 20 years ago, high throughput screening （HTS） has become one of the key techniques used in drug discovery. However, three main problems are recognized with the use of HTS; namely, with the compound library, drug targets, and assay methods. Until now, the compound library has evolved based on the techniques of combinatorial chemistry and modern phytochemistry. Several functional proteins have emerged following the advance of genomics and proteomics. However, although many functional proteins have been discovered recently, they are not, as sometimes claimed, real drug targets; at best, they might be potential drug targets. The ideal targets selected for drug screening should qualify as drug targets121. The selection of targets for drug screening is a crucial procedure in drug screening.[第一段]
Effects of CpG oligodeoxynucleotide on transcription factors GATA-3 and T-bet mRNA expression in asthmatic mice

Aim： To investigate effects ofCpG oligodeoxynucleotide （CpG ODN） on the mRNA expression of transcription factors GATA binding protein 3 （GATA-3） and T-box expressed in T cells （T-bet） in asthmatic mice. Methods： An asthmatic mouse model was established and treated with CpG ODN. Total inflammatory cells and eosinophils in bronchoalveolar lavage fluid （BALF） were counted and inflammatory cell infiltration in lung tissue was evaluated. Interferon-）, and interleukin-4 concentrations in BALF and splenocyte culture supernatants were detected using an enzyme-linked immunosorbent assay. Transcription factor GATA-3 and Tbet mRNA expression in splenocytes and lung tissue were detected by reverse transcription-polymerase chain reaction. Results： Total inflammatory cells and eosinophils in BALF were reduced in the CpG ODN-treated group compared with the asthma group, and inflammatory cell infiltration in lung tissue was also significantly alleviated. CpG ODN treatment increased the interferon-γ concentration but decreased the i.nterleukin-4 concentration in both BALF and splenocyte culture supernatants. GATA-3 mRNA expression was reduced in both lung tissue and splenocytes in the CpG ODN-treated group, while the mRNA ratio of T-bet to GATA-3 in splenocytes was increased. Conclusion： CpG ODN treatment inhibits airway inflammatory cell infiltration and regulates interferon-γ/interleukin-4 synthesis in asthmatic mice, possibly through a mechanism of downregulation of GATA-3 mRNA expression in both lung tissue and splenocytes.
Honokiol inhibits arterial thrombosis through endothelial cell protection and stimulation of prostacyclin

Aim： To study the effect of honokiol on arterial thrombosis and endothelial cells. Methods： Rabbit platelet aggregation was performed with Born＇s turbid method. Thrombosis was produced by the endothelial injury stimulated with electric current. Rat aortic endothelial cells （RAEC） were cultured and cell viability was assessed using the MTT assay. Nitric oxide （NO） concentrations in serum-free media of RAEC were determined using the kinetic cadmium-reduction method. The stable metabolite prostacyclin was measuredin serum-free media of RAEC by radioimmunoassay. Results： Honokiol （37.6-376 μmol/L） decreased rabbit platelet aggregation in vitro in a concentration-dependent manner, while intravenously injection of honokiol （0.12-12 μg/kg） significantly inhibited rabbit platelet aggregation induced by collagen ex vivo. In the electrical current-stimulated carotid thrombosis model in rats, honokiol （5-50 μg/kg, iv） prolonged the thrombus occlusion time in a does-dependent manner. In vitro honokiol （0.376-37.6 μmol/L） effectively protected cultured RAEC against oxidized low density lipoprotein （oxLDL ） injury, and significantly increased 6-keto-PGF1α （the stable metabolite of prostacyclin） in serum-free media of RAEC. Honokiol also increased NO level in RAEC serum-free medium at a lower concentration range （0.0376-0.376 μmol/L）, but honokiol 3.76 lμmol/L decreased NO level. Conclusion： Honokiol is a potent arterial thrombosis inhibitor. Endothelial cell protection and the stimulation of prostacyclin release may be its main anti-thrombosis mechanism. Stimulation of NO release in endothelial cells may play a role, but it is not a key factor.
Sequential Confidence Bands for Quantile Densities Under Truncated and Censored Data

In this paper an asymptotic distribution is obtained for the maximal deviation between the kernel quantile density estimator and the quantile density when the data are subject to random left truncation and right censorship. Based on this result we propose a fully sequential procedure for constructing a fixed-width confidence band for the quantile density on a finite interval and show that the procedure has the desired coverage probability asymptotically as the width of the band approaches zero.
A Review of Robust Regression and Diagnostic Procedures in Linear Regression

The concern over outliers is old since Bernoulli (see [12]), reviewed historically by [11] and updated with [10] in their encyclopedia textbook. James et al.[46] used simulation technique to compare some recent published outlier detection procedures. The history of adept and diagnosis of outliers is traced from old and presence comments. Theil-type or Rank, Brown-Mood, Lp, M, adaptive M, GM, and Trimmed-Winsorization estimators are the most popular estimators that we will review in this paper as an application to outlier accommodation. We will review and compare the most numerical and graphical displays based on residuals to flag outliers.
Synthesis of LiCoxNi1-xO2 cathode materials from electrolysis Co-Ni alloys

The LiCox Ni1-xO2 （x= 0.2, 0.5 and 0.8） cathode materials were synthesized by sintering the mixtures of lithium salt and Cox Ni1-x （OH）2 （x= 0.2, 0.5 and 0.8） which were achieved from corresponding Cox Ni1-x alloys by electrolysis technique. The structure and electrochemical characteristics of the obtained LiCoxNi1-xO2 were studied by XRD, SEM, PSCA and charge-discharge cycling test. The results show that the electrochemical capacities of the LiCoxNi1-xO2（x=0.2, 0.5 and 0.8） materials are improved with the increase of the Ni content. The electrochemical, performance of LiCo0.2 Ni0.8O2 made in oxygen atmosphere has higher charge-discharge capacity and better cycl.eabil.ity compared with the one made in air atmosphere.
Synthesis and characterization of LiNi0.45Co0.10Mn0.45O2 cathode for lithium ion batteries

LiNi0.45 Co0. 10 Mn0.45 O2 was prepared from Li2CO3 and a triple oxide of nickel, cobalt and manganese at 950 C in air. The structure and characteristics of LiNi0.45Co0.10Mn0.45O2 were determined by XRD, SEM and electrochemical measurements. The compound LiNi0. 45 Co0. 10 Mn0. 45 O2 has layered structure with hexagonal lattice. The individual particles are agglomeration of many little primary particles whose size ranges from 100 mm to 200 nm. The LiNi0.45 Co0.10 Mn0.45 O2 cathode has excellent electrochemical performances with large reversible specific capacity of h/g is obtained when the charge voltage limit is fixed at 4. 45 V.
Electrochemical studies on La-Co alloy film in acetamide-urea-NaBr melt system

The kinetics of La-Co alloy film in acetamide-urea-NaBr molten salt electrolyte at 353 K was investigated. It is shown that the reduction of Co( Ⅱ ) to Co is irreversible reaction with the transfer coefficient of 0.28 and the diffusion coefficient of 7.46 × 10-5cm2/s. While La( Ⅲ ) cannot be reduced to La directly; but can be codeposited with cobalt. The content of La in the uncrystallized La-Co alloy film increases with increasing cathodic overpotential, molar ratio of La3+ to Co2+ and electrolysis time as well, and reaches the maximum of 66.32%.
Preparation of carbon nanotube composite material with metal matrix by electroplating

It is demonstrated that the nickel can be deposited directly on the surface of carbon nanotubes without pre-sensitization by Sn2+ and Pd2+ in a watt bath containing suspended nanotubes by electroplating. The nickel is deposited as spherical nanoparticle on the nanotubes. By increasing reaction time, the carbon nanotube is fully coated with nickel. A probable model, which represents the formation process of carbon nanotube-nickel composites by electroplating, is presented. The results show that this method is efficient and simple for preparing carbon nanotube-metal composite.
右腋下筋膜原发性恶性黑素瘤1例报告

患者男性,43岁,偶见右腋下肿块1月后来本院就诊.体检：右腋下可触及一3 cm×3 cm肿块,质中,活动度尚可,皮肤表面未见明显异常,无触痛.入院B超示：右腋下混合性肿块.于2004年10月8日行手术切除.手术经常规消毒,切开皮肤、皮下,于脂肪层下见一孤立性褐色肿块约3 cm×3 cm,与周围界限清楚,行肿块单纯切除.肉眼检查：黑褐色肿块约4 cm×3 cm×2 cm,似有部分包膜,切面实性、褐色、无光泽、质软.镜下：瘤细胞呈片状、灶状、弥漫或散在分布,排列紊乱.瘤细胞呈上皮样、痣细胞样及短梭形,形态不规则,胞浆丰富,嗜酸性.核大小不一,圆形、卵圆形或杆形,略呈空泡状.
肾上腺髓性脂肪瘤诊断与治疗（附22例报告）

目的探讨肾上腺髓性脂肪瘤的诊治水平.方法回顾性分析肾上腺髓性脂肪瘤22例临床资料,并结合相关文献进行讨论.结果 22例中19例为偶发瘤,3例有腰部胀痛,2例伴高血压;术前均行B超、CT或MRI检查,除1例未确诊外,余均确诊为肾上腺髓性脂肪瘤,术后经病理证实.14例行开放性肾上腺肿瘤切除,8例行腹腔镜下肾上腺肿瘤切除.结论肾上腺髓性脂肪瘤多数为偶发瘤,可通过术前影像学检查被确诊.治疗选择要根据肿瘤大小和有无症状确定,腹腔镜下肿瘤切除是手术治疗的新趋势.
偏瘤型界线类麻风合并类天疱疮一例

患者女，53岁。躯干及四肢起红斑、水疱，伴剧痒5个月到我院皮肤科门诊5个月前无明显诱因双下肢出现红斑、水疱，并逐渐波及躯干和上肢。伴有剧烈瘙痒。水疱破溃后可自行愈合。留暗红色色素沉着斑。曾在与地医院服中药治疗无效。皮肤科情况：躯干及四肢散在分布红色水肿性斑片，部分红斑上有黄豆大水疱，疱壁紧张，Nikolsky征阴性．口腔黏膜无损害。临床拟诊为类天疱．
FRACTAL DIMENSION OF TIME SERIES APPLIED TO IDENTIFICATION OF CRITICAL SPEED OF JEFFCOTT ROTOR SYSTEM

The dynamical behaviors of logistic map（May＇s model） and duffing equation are studied through fractal dimension of time series at different parameters. It is shown that the parameters of dynamical behaviors can be identified effectively by the curve of fractal dimension with parameter increments. For further verification, the relation between the fractional dimension of time series and rotational speed can be used to identify critical speed effectively by using this method to a plate Jeffoctt rotor system. The numerical and experimental result indicates that the identification of critical parameters is effective.
WEAR FAILURE MECHANISM AND MULTI-IMPACT PROPERTY OF AUTOMOTIVE ENGINE CHAIN

The multi-impact characteristics and failure mechanism of two kinds of automotive engine chain made in China are studied through engine assembly and road-drive tests. The worn surface morphologies of rubbing area between pin, bush and roller are also analyzed based on scanning electron microscope. The results show that the main wear mechanism of automotive engine chain is fatigue wear, and its failure mechanism is the forming, extending and flaking of cracks on top layer of pin and bush. In addition, the material, hot-treatment method and shaping technique for roller have a great influence upon the resistance to multi-impact. Ensuring sufficient strength and plasticity of roller, as well as adopting suitable shaping technique are the effective method to increase its resistance to multi-impact.
男性假两性畸形睾丸女性化综合征一家系两例

例1 15岁，社会性别女。因“无月经来潮”就诊。查体：身高167cm，体重55奴，发育正常，营养中等。头颅五官无畸形。颈软，甲状腺正常。有喉结，声音沙哑。体毛较粗，腋毛稀少。乳房稍发育，乳头小，乳晕色淡。左右腹股沟处可扪及3cm×2cm及2cm×1．5cm的肿块，表面光滑，活动度好。妇科检查：阴蒂增大，大小阴唇发育尚好，阴毛菱形分布，阴道为一盲端，长约4cm。染色体核型为46，XY。B超示子宫卵巢缺如。右侧腹股沟管内见2．2cm×1．2cm回声团块。
X染色体臂间倒位一家系

先证者 女，42岁，已婚，孕2产0，有1次自然流产史。现孕5个月，因接触有毒化学品、高龄生育，要求产前诊断而就诊。患者系足月顺产，出生时父35岁，母33岁。父母非近亲婚配。患者儿童期口唇发绀、多动，目前体格发育正常。身高173cm，表型正常，孕期有接触化学药品史。经羊水培养染色体核型分析，胎儿染色体核型为：46，XY，inv，（X）（p11．2；q22．3）。
神经生长因子与肥大细胞在肠易激综合征模型大鼠肠道的研究

神经生长因子（NGF）是一种影响神经系统生长发育的生物活性物质，是外周感觉神经和交感神经系统分化与生存所必需的一种蛋白质。NGF还是炎症致痛的重要中介物质，并与躯体及内脏痛觉过敏有关。既往的研究已知，NGF可由肥大细胞（MC）合成和释放。近年来对肠易激综合征（IBS）的研究发现，IBS患者存在肠道敏感性改变及MC数量增多，但NGF在肠道的表达及是否参与IBS的发病机制尚不清楚。
黏蛋白和血管内皮生长因子在胃癌及癌前病变中的表达及意义

蛋白黏液素MUC2是一种分泌性糖蛋白，在正常胃黏膜中不表达，当胃黏膜出现肠化或恶变时有表达。血管内皮生长因子（VEGF）是调节新血管生成的最重要因子，而新的血管生成是肿瘤生长、转移和转移灶生长的必要条件。本研究采用免疫组化SP法检测胃癌组织、肠化生黏膜、正常胃黏膜中MUC2和VEGF的表达，以观察其在胃癌发生发展中的作用及与胃癌生物学行为的关系。
放线菌——微生物药物的重要资源

微生物早在38亿前已经在地球上发生，但人们真正认识它们的存在也只有300年。迄今，事实尽管说明微生物是地球生命体的主要组成者，维持着地球的生态平衡，并起着了解地球历史和地球生命健康以及开发所有应用生物技术潜能的关键作用；然而，我们对它们中的大多数仍然了解甚微。因此，微生物仍然是我们人类不断获得知识和发展生物技术的重要载体。[第一段]
生物被膜分散方式的研究进展

临床上生物被膜与感染的慢性迁延不愈密切相关，而生物被膜菌的分散又会造成感染的反复急性发作，给临床感染的有效控制带来很大困难。生物被膜菌的分散过程受到了遗传和环境等多因素的调控，主要是通过蜂式分散、块式分散和毯式分散3种形式来实现的。深入进行生物被膜基础研究对改变目前临床感染治疗的窘境有重大意义。
利用薄层色谱法快速筛选法夫酵母突变株

法夫酵母（Phaffia rhodozyma）是一种极具产业化前景的天然虾青素资源（Johnson,2003）.本实验从溶剂极性、溶剂组成等方面优选法夫酵母类胡萝卜素薄层分析的溶剂,并对薄层色谱在法夫酵母类胡萝卜素突变株筛选中的应用进行了研究.[第一段]
多重耐药鲍氏不动杆菌耐药现状与临床对策

鲍氏不动杆菌是较常见的条件致病菌，它广泛分布在自然和医院环境中，能在潮湿和干燥的物体、人体表面生存。当机体抵抗力下降，免疫功能受损时极易发生相关医院感染。国内大部分报道，不动杆菌的分离率仅次于铜绿假单胞，位居第2，在不动杆菌属中，临床标本分离率和耐药率最高、用药最棘手的是鲍氏不动杆菌，已被冠名为“革兰阴性杆菌的MRSA”。现就鲍氏不动杆菌的流行病学的特点、耐药特点及机制、临床抗感染的对策综述如下。[第一段]
小麦保优节本栽培技术

依据四大作物综合生产能力科技提升试点行动，高碑店市小麦种植投入产出入户调杏结果，在保证产量和品质的前提下，通过推广应用小麦保优节本栽培技术，增效达1500元／hm^2以上．2003～2004年这项技术在河北省高碑店市推广13333hm^2，取得了显著的经济效益和社会效益，
高产、多抗、优质水稻新品种通院6号

通院6号具有优质、高产、抗稻瘟病性能强、抗旱、结实粒率高、耐寒、垩白粒率低、透明度高的特点，稻米品质达到国家优质米标准，米饭食味极佳、口感柔软、不回生，米饭食味可与秋田小町媲美。2005年1月经吉林省农作物品种审定委员会审定通过。[第一段]
淮北地区优质超级稻两优培九高产栽培技术

两优培九是江苏省农科院粮食作物研究所育成的迟熟中籼两系杂交组合。2001年本区引进试种获得成功，以后种植面积逐年扩大，同年通过国家农作物品种审定委员会审定。2004年全区种植面积达4000hm^2，同年该品种被国家粮食科技丰产工程确定为重点推广品种，得到该项目资金资助。[第一段]
京郊优质玉米高效种植技术

通过4年的试验研究和生产示范，总结出5套优质饲用玉米高产高效种植技术模式。这些技术模式的优势表现在：优化配置光、热、水、土资源，扩充了京郊作物生产种类和优质饲用玉米品种，使上下两茬作物合理搭配，有效地弥补了北京地区热量资源一茬有余、两茬不足的缺陷；类型多样化，分别适于不同生态区；生产的产品优质专用，符合市场需求，增效明显；冬春季节的农田覆盖度大，对农田防风固沙、改善生态环境有良好效果；
新疆棉花生产膜下滴灌技术应用研究

膜下滴灌技术近年来在新疆棉花生产中推广迅速，并取得了较好的增产节支的效果。本文详细介绍了棉花膜下滴灌技术的系统设置和工作流程，对其增产机理和效益进行了分析，并对应用过程中存在的问题和解决方法提出了初步的意见。
高产强筋小麦新品种济宁16号的选育

济宁16号是山东省济宁市农科院以[烟1934／82（4）046]F1为母本，[聊83—1／2114]F1为父本杂交，经系谱法选育而成的高产强筋小麦新品种，2004年8月通过山东省农作物品种审定委员会审定。[第一段]
淮北地区荷兰豆无公害栽培技术

宿迁市宿豫区位于江苏省淮北地区，属暖温带季风气候区，位于东经117°56’15”～118°37’30”，北纬33°42’30”～34°12’30”，年平均日照时数为2315h，年平均气温14．1℃，年平均5cm土温15．5℃，常年无霜期216d，气候和土壤条件适于荷兰豆生长。近几年，荷兰豆种植面积逐年扩大，全区已达1333．3hm^2，其中蔡集镇近666．7hm^2，全区年总产量1600万kg，出口80％以上，市场售价4～6形kg。[第一段]
有机肥浅施对转基因抗虫棉生长和产量的影啊

种植转基因抗虫棉有利于降低棉花生产成本，增加农民收入，减轻环境污染，是实现我围棉花可持续生产的重要保证。但目前推广的转基因抗虫棉品种普遍存在两方面的问题，一是前期生长发育较慢，后期营养生长与生殖生长矛盾突出，易脱肥早衰；二是转基因抗虫棉随着生育进程的推进，抗虫性逐渐降低。为了提高种植转基因抗虫棉的经济效益和生态效益的优势，2000～2002年我们进行有机肥浅施试验，采取快速培肥0～10cm耕层肥力，改善浅耕层土壤物理性状，充分营造转基因抗虫棉前期根系生长的生态环境，以期达到转基因抗虫棉苗期根系发达、枝繁叶茂，搭起丰产架子，促进前期生育进程，使后期营养生长和生殖生长协调，棉株健壮，抗虫性相应增强，减弱抗虫性下降速度，早熟不早衰。[第一段]
土壤磷素活化剂对大豆的增产作用

以吉林35号为材料研究了土壤磷素活化剂对大豆的增产作用。结果表明，土壤磷素活化剂可增加大豆的株高、单株粒重，降低病粒率，显著地提高大豆百粒重和小区产量。产量随磷酸二铵施用量的减少而增加，幅度为3.64％～17．25％．土壤磷素活化剂是生产绿色大豆、保护生态环境、提高大豆产量、增加经济效益、具有良好应用前景的生物菌肥。
对黄淮海平原“杨上粮下”现象的思考

近些年来，黄淮海平原退耕还林，种植了大量的杨树，粮食作物种植面积大幅下降、粮食总产下滑。这种现象应引起高度重视与认真思考。粮食安全问题涉及国民经济发展的全局，建议国家研究制定粮食安全的长远战略。
玉米花粉和花丝生活力研究

将离体玉米花粉在不同温度条件下储存一定时间后，用于田间授粉，通过计算其结实率，研究离体玉米花粉在不同温度条件下生活力保持时间的长短。结果表明，低温可显著地延长离体玉米花粉的生活力，离体玉米花粉生活力保持在90％以上的储存期限是：24℃保存8h，4℃保存32h，-20℃保存56h。给吐丝后不同天数的果穗授粉，通过计算其结实率，研究玉米花丝生活力的保持时间和变化趋势。结果表明，吐丝后的1～6d，玉米花丝的生活力最旺盛，结实率可达95％以上。
长江中游渔业资源现状研究

长江流域鱼类资源十分丰富，产量约占全国淡水渔业产量的60％，历史上最高产量达42．7万t，是我国淡水鱼最主要的集中产区。多年来，由于水工建设、环境污染、酷鱼滥捕等诸多原因，长江渔业资源受到严重冲击。为了摸清长江渔业资源状况．20世纪70年代，农业部组织沿江六省一市协作，进行了长江水系渔业资源调查．对长江主要经济鱼类种群生物学特性、产卵场等进行了调查研究。[第一段]
Snodgrass手术在尿道下裂术后尿道裂开中的应用

尿道裂开是尿道下裂术后严重并发症之一,2002年4月至2004年8月我们应用保留尿道板纵切卷管尿道成形术（Snodgrass法）[1]治疗此类患儿25例,效果良好,现报告如下.[第一段]
遗传性嗜铬细胞瘤

10%～15%的嗜铬细胞瘤由遗传引起,现已发现多种遗传综合征和嗜铬细胞瘤有关,包括家族性嗜铬细胞瘤,多发内分泌肿瘤,神经纤维瘤病和Von Hipp-el-Lindau（VHL）病等[1].遗传性嗜铬细胞瘤表现复杂,多发内分泌肿瘤、VHL病等常常多器官发病,涉及普外、儿科、神经科、皮肤科等相关科室,容易延误诊治,致残率和致死率较高.遗传性嗜铬细胞瘤在诊断和处理上有一定特点,综述如下.[第一段]
白车轴草病虫害的发生危害及其治理对策

以山东聊城市为基点对鲁西北地区白车轴草病虫害进行了普查，发现白车轴草病害11种，有害昆虫36种．其他有害动物6种，首次报道了梨冠网蝽和小蓑蛾对白车轴草的危害，并研究了部分种类的发生规律，提出了白车轴草病虫害的治理对策。
对弹性弦非小振幅振动的初步分析

以弹性弦的长度变化不可忽略为条件，简要推导了一般振幅下的弦的振动方程。结果显示，弦的振动情形是复杂的，但在此条件下得到的弦振动方程比小振幅条件下的方程具有更真实的物理意义，且后者是前者的极限简单情形，指出了横振动可以向纵振动转化，此推导过程可以使人们更好的理解弦的振动。
拉米夫定——部分调节HepG2．2．15细胞干扰素诱导基因表达

为了解抗病毒核苷类似物拉米夫定（3TC）处理的Hep2．2．15细胞干扰素（IFN）抗病毒基因表达谱以及3TC对IFN信号转导途径的影响而开展此项研究。具体方法：将培养的Hep2．2．15细胞用3TC处理，再以IFN-α刺激6h，分离细胞总RNA，经逆转录、^32P标记后与尼龙膜上的探针基因芯片进行分子杂交——Macroamy法，并以此来分析3TC处理的Hep2．2．15细胞IFN抗病毒基因表达谱。用ELISA、Dotblot、Southernblot分析3TC处理的Hep2．2．15细胞分泌HBV抗原、[第一段]
装配BOM的形成

1问题的由来。信息技术辅助企业生产管理无论是初期的MRP还是MRPⅡ或现代的ERP、SCM,都需要产品数据,包括组成产品各部分物料的定义数据、产品各部分结构数据以及各种物料的制造工艺数据.这些数据来源于产品设计与工艺设计.
椭圆零件精密磨削中微进给机构的设计与应用

进给机构是精密加工和超精密加工的关键技术.直线电动机具有高频响应好,行程较大,高精密度等优点.设计并通过可编程多轴运动控制器PMAC(Programmable Multi-Axis Controller)控制其作为开放式实验磨床的微进给单元,响应性能优越;利用PMAC的时基原理控制微进给机构实现了椭圆零件的精密磨削加工.
经动脉导管药盒系统序贯治疗腹腔隐睾精原细胞瘤一例

患者 男,37岁,于1999年1月发现腹部包?同年3月在外院剖腹探查并切除包块,病理诊断为"精原细胞瘤",术后行常规化疗.同年12月肿块复发,于2000年5月11日入院.体检:中下腹可扪及巨大肿块,大小约20 cm×14 cm,呈椭圆形,质硬,表面凹凸不平,移动度差.……
Novel electrodeposition process for preparing hydroxyapatite coating on titanium substrate

A novel process for electrodeposition of hydroxyapatite coating on titanium substrate was developed. The mechanism of the electrochemical reaction on the cathode was changed by adding H2 O2 into the electrolyte. The evolution of H2 gas was erased. And owing to the fact that H2O2 posesses high tendency of being reduced, a fairly high cathodic current can be gained at a more positive potential than -- 1.0 V. During the electrodeposition, 6% H2O2 is added, the temperature of deposition is fixed at 55 ℃ and pH of electrolyte is adjusted to 5.5. Dense and homogeneous film is crystallized at high rate. The mechanism of crystallize process was discussed.
Removal of cadmium from cadmium-contaminated red soils  using electrokinetic soil processing

To investigate the feasibility of electrokinetic soil processing on the removal of Cd from Cd-contaminated red soils, a laboratory experiment was conducted. A constant direct current density of 0.5 mA/cm^2 was applied. The result shows that the Cd-removal efficiency is remarkably pH-dependent, which is caused by the change of Cd retention capacity of the red soils under different pH conditions. The initial Cd concentration is 1. 490 g/kg and over 79% of it is removed from the red soils after treatment for 96 h. The energy expenditure per unit volume at the end of experiment is about 77.6 kW · h/m^2 and the capital consumed by the whole experiment is 42.6 RMB Yuan/m^3 , which suggests that the electrokinetic soil processing is a promising technology for remedying Cd-contaminated red soils due to its high removal efficiency and low energy consumption.