mlsa-iai-msu-lab/ru_sci_bench_zho_cite_reranking huggingface dataset:
Evolution of endoscopic extraperitoneal radical prostatectomy (EERPE): technique and outcome

Endoscopic extraperitoneal radical prostatectomy (EERPE) is a well-established and standardized technique for treating patients with localized prostate cancer. Nevertheless, the procedure is continuously being refined with the expansion of anatomical knowledge. The development of a nerve-sparing approach and improvements in currently used equipment are expected to yield better results in cosmesis and convalescence without sacrificing the procedure’s established benefits in terms of potency, continence and oncological management. In this study, the technique and its evolution are presented in detail, along with an analysis of its clinical efficacy. Wealso consult the literature to compare EERPE to transperitoneal laparoscopic radical prostatectomy, and we also discuss new technical advancements regarding the use of robotic assistance during EERPE.
Cognitive changes associated with ADT: a review of the literature

The use of androgen deprivation therapy (ADT) has increased since the early 1990s after early detection efforts and greater use of the prostate-specific antigen (PSA) test. Although ADT is associated with favorable clinical outcomes, ADT has been associated with an increased risk for cardiovascular disease, increased serum cholesterol, triglycerides, insulin resistance, body mass index and fat body mass. Here we review findings from 11 clinical studies examining the effects of ADT on cognition as measured by standardized tests in cognitive domains such as verbal and spatial memory. Most of these studies have important limitations, including small sample sizes, suboptimal control groups and baseline group differences in confounding factors. Despite these limitations, the best designed studies, those comparing patients on ADT to healthy controls, generally suggest that spatial memory might be especially sensitive to the effects of ADT. Critically, to date there is only one study involving random assignment of ADT versus close clinical observation. That study revealed a decrease in verbal memory with ADT, but was limited in sample size and did not include a measure of spatial memory. A recent observational study revealed no substantial evidence of cognitive impairment with ADT, even in the domain of verbal memory. Like the randomized study, however, this large observational study lacked a measure of spatial memory. Overall, the studies with the best controls suggest a potential negative impact of ADT on spatial memory, and perhaps verbal memory, and a need for continued investigation of the impact of ADT on cognition, particularly in these two cognitive domains.
美国Solar3D公司试制3D太阳电池

位于美国加州圣巴巴拉的Solar3D公司开发了3D太阳电池技术。近日,该公司公布了其新型3D太阳电池在模拟试验中的转换效率超过25%,远远超过目前太阳能技术生产的转换效率。这种3D结构的太阳电池可使太阳光能最大限度地转化为电能。
钒电池——大规模储能技术的亮点

早在20世纪60年代,就有铁-铬体系的氧化还原电池问世,其中钒系的氧化还原电池是1985年由澳大利亚新南威尔士大学的研究人员提出的。经过多年的研发,钒电池技术已经趋近成熟。
采用三层碳纳米管正极材料的锂离子电池

东京大学与美国麻省理工学院(MIT)的研究小组通过使用独创的工艺,连续大量制备了由高品质的三层碳纳米管(CNT)构成的厚度为数十微米的自立化柔性膜,将其用作锂离子电池的正极。
The Anisotropy of Dipolar Condensate in One-Dimensional Optical Lattices

The anisotropy of dipole-dipole interaction is revealed by energy band, tunneling dynamics and stabilities of a dipolar condensate in one-dimensional optical lattices. It is demonstrated that the Bloch band structure, the tunneling rate between Bloch bands and the stabilities of Bloch states can be controlled by adjusting the effective aspect ratio of the condensate and the dipolar orientation.
胎儿超声心动图产前诊断法洛四联症

目的:探讨胎儿超声心动图产前诊断法洛四联症的临床价值。方法:回顾性分析8例法洛四联症(经胎儿超声心动图检查诊断)的超声图像与随访结果,分析各切面的二维声像和彩色多普勒血流特点。结果:4例胎儿经尸解证实为法洛四联症,1例产后超声心动图及手术证实,2例未行尸解,1例失访。结论:法洛四联症的胎儿期超声心动图特征主要表现为室间隔缺损,主动脉骑跨,肺动脉狭窄,右室前壁增厚不明显,轻型法洛四联症容易漏诊。胎儿超声心动图产前诊断胎儿法洛四联症具有很大的临床价值。
乙肝病毒慢性感染者HBeAg、ALT水平分布及其影响因素的现况调查

目的:调查分析人群中乙肝病毒(HBV)慢性感染者e抗原(HBeAg)、丙氨酸氨基转移酶(ALT)的分布特征及影响因素,以指导慢性HBV感染者的人群防治。方法:对乙型肝炎表面抗原(HBsAg)阳性者开展调查问卷和HBeAg、ALT实验室检测,分析HBeAg、ALT水平分布特征及其影响因素。结果:共调查3 815例HBsAg阳性者,HBeAg阳性率为11.7%,ALT大于40 U/L和80 U/L的比例分别为15.6%、5.7%。男性ALT异常率高于女性,低年龄组HBeAg阳性率高、ALT异常率低,在有抗病毒治疗史人群中,ALT异常率仍达34.9%,无抗病毒治疗史者中有3.4%ALT大于80 U/L。结论:不同性别、年龄人群HBV慢性感染后临床特征有明显差别,需加强慢性HBV感染者的随访工作并探索提高抗病毒治疗效果的药物和方法。
孟鲁司特联合槐杞黄颗粒治疗儿童咳嗽变异性哮喘的临床疗效

目的观察孟鲁司特联合槐杞黄颗粒预防和治疗儿童咳嗽变异性哮喘。方法将90例咳嗽变异性哮喘患儿随机均分成对照组和治疗组。治疗组给予孟鲁司特、槐杞黄颗粒,对照组仅给予孟鲁司特。结果治疗3月后,治疗组多项控制指标均优于对照组。结论孟鲁司特联合槐杞黄颗粒能有效地减少咳嗽变异性哮喘发作次数,较好地控制临床症状,不良反应轻,生活质量明显提高。
椎动脉栓塞术在老年颈椎肿瘤切除术中减少失血的应用价值

椎动脉损伤的处理是颈椎肿瘤手术中的一个重要环节,临床上常采用术中结扎的方法。由于椎动脉第2段(椎骨段)在解剖学上的特殊性,结扎时可能导致血管破裂出血。如上述出血发生于老年患者,则极易出现严重并发症甚至导致死亡。
老年颈椎自发性硬膜外血肿1例

虽然大多数学者主张早期手术减压及清除血肿，但并非所有患者均需手术治疗，特别是应用糖皮质激素治疗，在特定的情况下，对SSEH也可达到良好的神经功能恢复。Stephen等的研究表明，对于神经损害呈现逐渐改善的病人，积极地非手术治疗也可以达到临床缓解甚至治愈。该患者入院后根据其病史、发病诱因、临床症状与MRI检查，诊断为颈椎SSEH，考虑其打喷嚏时导致胸腹腔压力增高，硬膜外血管压力增高，血管破裂从而形成血肿，及时给予激素、脱水及营养神经等治疗后，临床症状得到缓解，1年后随访时基本得到临床治愈，复查颈椎MRI后可见血肿已消失。
无创正压通气治疗慢性阻塞性肺疾病合并Ⅱ型呼吸衰竭患者的疗效

尽管无创性正压通气(NIPPV)在临床上已使用了许多年,但近年来关于其是否能更有效地治疗慢性阻塞性肺疾病(COPD)合并呼吸衰竭尚存在争议〔1〕。有研究报道其可较好地改善呼吸衰竭,避免患者经受气管插管的痛苦;亦有研究认为NIPPV并不能降低气管插管率,而且若使用不当还有可能延误治疗,加重病情,甚至增加患者病死率。
脑心通胶囊联合阿托伐他汀治疗脑梗死颈动脉粥样硬化患者的疗效

目的分析脑心通胶囊联合阿托伐他汀对脑梗死颈动脉粥样硬化患者的治疗作用。方法选取50例确诊为颈动脉粥样硬化的脑梗死患者,随机分为对照组和观察组,每组25例。对照组患者给予阿司匹林、阿托伐他汀治疗,观察组患者在对照组治疗的基础上,加服脑心通胶囊,两组患者均给药6个月。观察两组患者治疗前后的血清甘油三酯(TG)、总胆固醇(TC)、低密度脂蛋白胆固醇(LDL-C)、高密度脂蛋白胆固醇(HDL-C)、颈动脉内膜-中层厚度(IMT)及颈动脉粥样硬化斑块面积的变化。结果经过6个月治疗后,对照组、观察组患者的TG、TC、LDL-C水平较治疗前明显降低(P<0.05),HDL-C水平较治疗前明显升高(P<0.05),IMT、斑块面积均较治疗前明显减小(P<0.05);而观察组患者的TG、LDL-C水平较对照组明显降低(P<0.05),HDL-C水平较对照组明显升高(P<0.05),IMT、斑块面积较对照组明显减小(P<0.05)。结论脑心通胶囊联合阿托伐他汀对脑梗死颈动脉粥样硬化患者有较好的治疗作用,值得推广及应用。
老年全血细胞减少症患者130例病因分析

目的分析老年全血细胞减少症(pancytopenia,PCP)患者的病因构成及各疾病特点。方法回顾性总结130例老年PCP患者的病历资料,分析老年PCP患者病因和各疾病的实验室及骨髓检查等情况。结果①130例老年PCP患者,非血液系统疾病81例(62.3%),血液系统疾病36例(27.7%),不明原因13例(10%)。②血液系统疾病的三系血细胞减少多表现为轻、中度,非血液系统疾病白细胞减少和贫血多表现为中、重度,血小板减少为极重度,两者三系血细胞减少程度差异有显著性(P<0.05)。③平均红细胞体积(MCV)、平均红细胞血红蛋白含量(MCH)、平均红细胞血红蛋白浓度(MCHC)和红细胞分布宽度(RDW)组间比较,巨幼细胞性贫血(MA)和骨髓增生异常增生征(MDS)之间差异有显著性(P<0.05)。④Hb与尿素氮(BUN)、肌酐(CERA)呈直线负相关关系(分别为r=-0.376 95,P<0.05;r=-0.495 44,P<0.05)。⑤MA的乳酸脱氢酶(LDH)值明显高于MDS,有显著性差异(P<0.05)。结论老年PCP有多种病因,以非血液系统疾病为主,其三系血细胞多为轻、中度减少。MCV和LDH对MA和MDS的鉴别诊断有重要价值。老年PCP应常规行骨髓检查。
OSAHS对老年脑卒中患者血糖、血脂及同型半胱氨酸水平的影响

目的探讨阻塞性睡眠呼吸暂停低通气综合征(OSAHS)对老年脑卒中患者血糖、血脂和同型半胱氨酸水平的影响。方法选自2009年1月至2011年1月我院住院脑卒中患者130例,根据多导睡眠仪检测分为单纯脑卒中组、脑卒中合并轻度OSAHS组、脑卒中合并中度OS-AHS组、脑卒中合并重度OSAHS组,对各组患者的血糖、血脂和同型半胱氨酸水平进行测定。结果随着AHI的升高,FPG、TG、TC、LDL-C、LPa、Hcy水平渐增,而HDL-C水平降低;脑卒中合并中度及以上OSAHS组的FPG、TG、TC和LDL-C水平与单纯脑卒中组比较有明显差异(P<0.05);脑卒中合并不同程度OSAHS组的Lpa和Hcy水平较单纯脑卒中组比较有明显差异(P<0.05);各组APO-AI和APO-B水平比较无显著差异(P>0.05)。结论OSAHS对老年脑卒中患者的血糖、血脂、Hcy均有不良影响。
湘丰优186在醴陵的种植表现及高产栽培技术

湘丰优186是湖南隆平超级杂交稻工程研究中心有限责任公司选育的三系杂交晚稻新组合。该组合2010和2011年连续2 a在醴陵市示范种植,2 a平均产量9.90 t/hm2,表现出生育期适中、分蘖力强、穗大粒多,产量高、米质优等特点。总结了其高产栽培技术。
杂交水稻母本机插秧制种技术研究初报

引进杂交水稻制种母本专用插秧机,在Y两优1号制种基地进行母本机插秧试用试验,以母本人工移栽、人工撒直播作对照,观察3种方式的生育特性、苗数动态、群体穗粒构成和抽穗开花特性。结果表明:机插秧母本的播始历期较人工移栽长2 d、比撒直播长7 d,群体穗粒构成和抽穗开花特性与人工移栽、撒直播方式无太大差异,完全能达到杂交水稻制种技术要求,且能节省劳动力、减轻劳动强度、提高工作效率。
成都平原水稻机插秧推广的难点与突破思路

水稻机插秧可以节省秧田、水、肥、药、人工,具有节本高效的特点,但在成都平原未能得到有效推广。笔者认为,大田小户制约应用、插秧机利用率低、机插秧技术与现有熟制的矛盾以及机插秧育秧技术还不够成熟等因素制约了机插秧发展,并提出了促进机插秧推广应用的思路和建议。
新癀片辅助治疗心包切开后发热104例临床观察

发热究其原因分感染性和非感染性，心脏手术后常出现发热症状，一般为中度发热，高热40℃以上甚少。在临床上，心脏手术常植入牛心包补片、人工瓣环及瓣膜等异物，依据卫生部抗生素应用规范于术前及术后给予相应预防性抗感染等处理，已往临床观察，抗感染针对心脏术后中度发热效果并不理想，自2009年以来，笔者将新癀片用于心包切开后发热的治疗，使术后发热得到较好的控制，现报告如下。
Temperature Distribution and Thermal Stresses in Various Conditions of Moving Heating Source during Line Heating Process

Line heating method is widely used to manufacture curved surfaces in ship building. The main factors governing the quality of the manufactured products are the moving velocity of the heating source, heating strength, and heating ways. In this study, the temperature distributions of the heated plate were investigated with the condition that the line heating process was automatic. The temperature variations were also investigated with the changes of those three variables. The numerical results showed that the peak temperature decreased as the moving velocity of the heating source increased. It also revealed that the peak temperatures changed linearly with the changes of the heating source.
Study of the Reconstruction of Fractal Structure of Closed-cell Aluminum Foam and its Thermal Conductivity

Based on the characteristics of the internal structure of closed-cell aluminum foam, this paper attempts to illus- trate the process of reconstructing the internal structures of closed-cell aluminum foam in Monte-Carlo method and the fractal characteristics of the reconstructed model. Furthermore, Binary Array Method is proposed by analyzing the reconstructed model and the thermal conductivity model of closed-cell aluminum foam is established. At the same time, the thermal conductivity of the foam materials with different porosity is calculated by Binary Array Method, and the calculated value coincides with the experimental results in the reference, which proves the correctness of these methods.
Prediction of the Frontier Electronic States in a Finite Single-wall Carbon Nanotube

A theoretical model is summarized into the shorter vector principle. It is used to predict the topological structure of wave function and the oscillation rule of energy gap in various types of finite carbon nanotubes (CNTs). The theoretical model indicates that the characteristics of the electronic states only depend on the nanotube size and its symmetry along the shorter vector direction. In this direction, the wave functions of the original 3m (or 3m/2) periodicity are also suitable for armchair, chiral and zigzag finite CNTs with the C_2 (C_s), C_1 and C_n point groups, respectively. Energy gaps present the oscillation with 3m (or 3m/2) or odd-even n. The first principle calculations for some prototype systems are performed. The results are consistent with the theoretical model.
Syntheses and Crystal Structures of Two New Main Group Metal Complexes (M = Al, Bi) with the Substituted p-Hydroquinones

The title complexes [Al(Hcah)(H_2O)_2]·2H_2O (A) and [Bi(Hcah)(H_2O)]_n (B), where H_4cah = 2-[N,N-bis(carboxymethyl)aminomethyl] hydroquinone, have been synthesized and characterized using X-ray single-crystal structure determination, IR and elemental analysis. Both complexes crystallize in the monoclinic system, space group P2_1/c with a = 7.8660(16), b = 10.096(2), c = 19.053(4)A and β = 93.50(3)° for A; and those for B: a = 9.2348(18), b = 7.9061(16), c = 17.141(3)A and β = 102.64(3)°. In addition, further investigation revealed that the central Al(III) ion in the mononuclear complex A is in a distorted octahedral coordination geometry, while structural analysis reveals that the Bi(III) ion is in a distorted pentagonal bipyramid, forming a 2-D polymeric complex B, and the coordination network is a 2D 4.82 net. The TG analyses of A indicate two steps of water loss.
Acclimatory responses to high-salt stress in Chlamydomonas (Chlorophyta, Chlorophyceae) from Antarctica

Antarctic ice microalga can survive and thrive in channels or pores containing high salinity in Antarctic ice layer. In this study, it was found that cell membrane permeability of green microalga Chlamydomonas sp. L4 from Antarctic sea ice was high in cells treated with hypersalinity due to the induction of active oxygen and radicals. However, increased super oxide dismutase (SOD) scavenged harmful free radicals effectively to keep cell membrane integrity. Also, the analysis of membrane fatty acids demonstrated the content of saturated fatty acids and monounsaturated fatty acids increased and polyunsaturated fatty acids decreased under the high-salt treatment for 14 d, which effectively reduced the membrane fluidity and minimized the injury to cell membrane. The morpho- logical changes showed that hypersalinity induced the increase of cell volume and the consumption of starch granules. However, because of the increase in detoxification of vacuoles, electron-dense deposits and SOD activity under high-salt stress, the complete noninterference thylakoids, mitochondria and cell nucleus maintained cellular fundamental metabolism. Global-expression profiling of proteins showed eight protein spots disappeared, 18 protein spots decreased and 18 protein spots were enhanced after the high-salt shock obviously (P <0.05). One new peptide (pI 6.90; MW 51 kDa) was primarily confirmed as the processor of light reaction center protein CP43 in photosystem II, which increased photosynthesis ability of Chlamydomonas sp. L4 treated with high salinity.
The estimate of sea ice resources quantity in the Bohai Sea based on NOAA/AVHRR data

The research on sea ice resources is the academic base of sea ice exploitation in the Bohai Sea. According to the ice-water spectrum differences and the correlation between ice thickness and albedo, this paper comes up with a sea ice thickness inversion model based on the NOAA/AVHRR data. And then a sea ice resources quantity (SIQ) time series of Bohai Sea is established from 1987 to 2009. The results indicate that the average error of inversion sea ice thickness is below 30%. The maximum sea ice resources quantity is about 6 × 10~9 m~3 and the minimum is 1.3 × 10~9 m~3. And a preliminary analysis has been made on the errors of the estimate of sea ice resources quantity (SIQ).
Extraction behaviours of titanium and other impurities in the decomposition process of ilmenite by highly concentrated KOH solution

To effectively utilize ilmenite and recycle KOH solution, the extraction behaviours of titanium and other associated impurities in the decomposition process of ilmenite by highly concentrated KOH solution were studied. Experiments on the extraction behaviours of titanium as well as other associated impurities of ilmenite such as iron, silicon, calcium, and aluminium were carried out. The effects of various parameters, including reaction temperature, KOH concentration, reaction time, alkali-to-ore mass ratio, and particle size on the extraction rate of titanium and other impurities were examined. When the finely ground ore (58-75 μm) reacted with KOH solution (80wt%) in an alkali-to-ore mass ratio of 7:1 at 260℃ for 60 min, almost complete extraction of titanium was achieved, while the extraction rate of alumin-ium was 78% and that of other impurities was less than 22%. Moreover, high purity (98.2wt%) TiO2 with the anatase structure could be gained in the purification process.
Virion protein 16 induces demethylation of DNA integrated within chromatin in a novel mammalian cell model

DNA methylation and demethylation play important roles in mediating epigenetic regulation. So far, the mechanism of DNA demethylation remains elusive and controversial. Here, we constructed a plasmid, named with pCBS-luc, that contained an artificial CpG island, eight Gal4 DNA-binding domain binding site, an SV40 promoter, and a firefly luciferase reporter gene. The linearized pCBS-luc plasmid was methylated in vitro by DNA methyltransferase, and transfected into the HEK293 cells. The stable HEK293 transfectants with methylated pCBS-luc (me-pCBS-luc) were selected and obtained. The methylation status of the selected stable cell lines were confirmed by bisulfite sequencing polymerase chain reaction amplification. The methylation status could be maintained even after 15 passages. The virion protein 16 (VP16) was reported to enhance DNA demethylation around its binding sites of the promoter region in Xenopus fertilized eggs. Using our me-pCBS-luc model, we found that VP16 also had the ability to activate the expression of methylated luciferase reporter gene and induce DNA demethylation in chromatin DNA in mammalian cells. Altogether, we constructed a cell model stably integrated with the me-pCBS-luc reporter plasmid, and in this model we found that VP16 could lead to DNA demethylation. We believe that this cell model will have many potential applications in the future research on DNA demethylation and dynamic process of chromatin modification.
Yetter–Drinfeld Modules over the Hopf–Ore Extension of the Group Algebra of Dihedral Group

Let k be an algebraically closed field of characteristic zero, and D_n be the dihedral group of order 2n, where n is a positive even integer. In this paper, we investigate Yetter–Drinfeld modules over the Hopf–Ore extension A(n, 0) of kD_n. We describe the structures and properties of simple Yetter–Drinfeld modules over A(n, 0), and classify all simple Yetter–Drinfeld modules over A(n, 0).
太阳能联合锅炉沼气池智能温控系统设计与应用

在畜牧业中应用沼气,既可有效利用牲畜排泄物等废弃资源,又可减少对环境的污染。在严寒地区,冬季气温低造成沼气生产率低、使用率低等问题,甚至出现沼气池冻裂的现象,严重影响了养殖户发展应用沼气的积极性。针对这一问题,提出采用太阳能联合锅炉为沼气池供暖。首先将沼气池和周围土壤看成有机整体建立温度控制模型,保持沼液处于合适发酵温度且控制在设定值±2℃范围内;其次以稳定性和经济性为基础对温度控制系统进行详细设计;最后以年出栏1 000头的养牛场为例进行系统应用,验证系统可行性。
华北土石山区流域防护林空间配置模式

收集华北土石山区红门川流域1∶10 000地形图和2005年1∶10 000土地利用结构图,结合野外调查,建立研究区空间数据库和属性数据库。选取地貌、坡度、坡向、土层厚度、土壤母质5个因子将研究区划分为17种立地类型,结合防护林现状确定流域防护林空间配置模式:中低山沟谷适宜于农业;中山区不适合发展林业,建议封育;而在低山区,缓坡以阔叶林为主,斜坡以乔木林为主,陡坡以灌木林为主。
基于虚拟水的淮安市2008年水足迹分析

水足迹和虚拟水是当前水资源领域研究的热点问题。利用虚拟水和水足迹的基本理论和方法计算了淮安市2008年水足迹。结果表明:2008年淮安市水足迹为99.24×10~8 m~3,人均水足迹为1 839.11 m~3,主要农产品虚拟水消费量远高于实际统计的水资源消费量。针对淮安市水足迹状况、结构组成等情况,对淮安市水资源可持续利用提出了调整产业结构、虚拟水贸易和消费方式等方面的建议。
水产品中麻痹性贝类毒素(PSP)的快速检测

介绍了美国ABRAXIS麻痹性贝类毒素试剂盒的测定原理和测定方法,应用该试剂盒对广西钦州和防城港海域近江牡蛎样品各20个、北海海域文蛤样品20个,进行麻痹性贝类毒素检测。应用酶联免疫试剂盒检测麻痹性贝类毒素,全部试验过程在2 h内完成,检测限0.02 ng/g,灵敏度为0.015 ng/g。应用ELISA法检测麻痹性贝类毒素,具有简便、快捷、灵敏、成本低廉等特点,非常适于快速检测的实际需求,有望作为理想的筛选分析方法之一,在水产品质量快速检测、养殖区染毒情况调查以及上市贝类质量监控方面发挥重要作用。
中国稻壳资源量估算及其开发利用

稻壳是不可忽视的可再生资源。依据稻谷出壳率和稻谷产量对2009年我国稻壳的产量进行了估算;介绍了稻壳发电,稻壳联产水玻璃、活性炭和白炭黑,稻壳制备水泥,稻壳制备木糖等几种具有产业化推广价值和较高经济效益的稻壳利用方式。
密集烘烤干筋期风机转速对烤烟上部叶质量的影响

为了进一步提高上部烟叶的可用性和优化密集烘烤工艺,采用密集烤房和变频器研究了干筋期不同风机转速对烤后上部烟叶外观质量、化学成分及其协调性、感官评吸质量和经济性状的影响。结果表明,在干筋期风机先以720 r/min的转速运行,在60℃以后以540 r/min的转速运行,能显著提高上部烟叶的中上等烟和橘色烟比例,对能耗和烘烤成本的降低最为显著,能明显改善上部烟叶的外观质量、内在化学成分的协调性和感官评吸质量,尤其对烤后烟叶的香气量、香气质、刺激性、杂气和口感改善最为明显。综合考虑,在干筋期适当降低风机转速可以提高上部烟叶的可用性,以T_3(54~60℃时风机转速720 r/min,60℃以后540 r/min)最佳,其次为T_4(54~60℃时风机转速720 r/min,60℃以后720 r/min)。
低氧富营养化水体中垂柳和青杨叶片生理指标的变化

以垂柳(Salix babylonica Linn.)和青杨(Populus cathayanna Rehd.)为材料,采用泡沫板浮床种植于低氧富营养化水体中,研究低氧水培条件下青杨和垂柳叶片的生理指标变化。结果表明:以正常土壤中生长的青杨和垂柳为对照,在低氧富营养化水体中,垂柳和青杨叶片中叶绿素的总量减少,但叶绿素a/b增大;垂柳叶片的丙二醛含量增加,可溶性糖和可溶性蛋白含量显著提高,表明垂柳对低氧胁迫具有较好的耐受性;青杨叶片的丙二醛、可溶性糖和可溶性蛋白含量与土培生长无显著差异,表明青杨能够适应低氧水培环境。因此,垂柳和青杨可以应用于植物浮床系统。
6-BA对匍匐剪股颖耐热性的影响

在38℃和30℃(昼、夜各12 h)高温胁迫下,喷施不同浓度的6-BA(0、5、10、20 mg/L),研究对匍匐剪股颖(Agrostis stolonifera)耐热性的影响。研究结果表明,适宜浓度的6-BA能够促进高温胁迫下匍匐剪股颖的生长,增加叶绿素含量,维持膜系统结构的稳定性,提高植株中全氮、全磷的含量,对全钾含量无显著影响。喷施6-BA有利于匍匐剪股颖抵御高温胁迫,适宜浓度为10 mg/L。
多效唑与矮壮素对菊花试管苗生长的影响

以菊花试管苗为试验材料,以多效唑与矮壮素为矮化剂,研究多效唑与矮壮素对菊花试管苗生长的影响。结果表明,在含不同浓度多效唑与矮壮素的培养基中,菊花试管苗的根系较发达,分生能力降低,且表现出矮化现象。得出0.02 mg/L多效唑和10 mg/L矮壮素对菊花试管苗的矮化效果较好的结论。
用荧光染色法观察南瓜雄配子体发育过程

采用蜜本南瓜和安生黑钻南瓜开花初期的雄花蕾为试验材料,利用荧光染色技术对南瓜花粉发育时期进行鉴定,结果表明:南瓜花粉母细胞发育经过减数分裂后进入四分体时期,经历单核早中期和单核靠边期进入二核期,成熟花粉为2-细胞花粉。其中蜜本南瓜处于单核期的花蕾长度在1.4~1.7 cm,安生黑钻南瓜则在1.2~1.7 cm,可以作为花药或花粉培养的选材依据。
不同肥源有机肥对白菜产量及氮素吸收利用的影响

采用田间小区试验法,以白菜(苏州青)为供试作物,一次性施入有机氮(纯氮)600 kg/hm2,且连续种植3茬,研究了2种不同肥源有机肥对白菜产量及氮素吸收利用的影响。结果表明:水葫芦有机肥对白菜的增产作用显著低于鸡粪有机肥处理,但产量差异程度随种植茬数的增加而逐渐降低;有机肥类型对白菜吸氮量、氮素干物质生产效率、氮素利用率、氮素农学利用率均存在极显著的影响,水葫芦有机肥处理的白菜吸氮量、氮素利用率、氮素农学利用率小于鸡粪有机肥处理,而水葫芦有机肥处理的白菜氮素干物质生产效率、白菜收获后土壤全氮含量则大于鸡粪有机肥处理。
向日葵抗列当种质资源鉴定与筛选的新方法

向日葵列当已经成为我国向日葵产区的主要草害之一。国内目前主要采用盆栽和大田试验的方法进行向日葵抗列当种质资源鉴定,这些方法所需鉴定时间长,需要在列当发生地进行。本研究采用种子发芽试验,比较不同向日葵品种对列当种子发芽的刺激程度差异,进行向日葵抗列当种质资源的筛选。为向日葵育种提供一种简便的抗列当种质资源鉴定与筛选方法。
播种方式和播种量对稻茬小麦生长的综合效应

当前江苏省小麦的种植制度比较单一,以粳稻茬麦为主,小麦实际播种适期和已往相比明显缩短,有的甚至推迟到了适期以后,从而影响了小麦产量潜力的充分发挥。本研究重点探讨播种量和播种方式对小麦群体和产量结构的影响,为在生产上引导农民正确选择小麦的播种方式和确定合理的播种量提供参考,达到提高小麦产量的目的。
实施草莓绿色品牌,提高草莓市场竞争力

针对江苏草莓产业现状与存在问题,提出实施绿色品牌战略的指导思想和基本原则,建议采取政府扶持推动,改善生产条件,树立品牌意识,建立科技创新团队,培植龙头企业,坚持质量第一,加强源头控制,实行市场准入等措施,使绿色食品———草莓生产走上健康持续发展道路。
Simultaneous determination of cysteamine and folic acid in pharmaceutical and biological samples using modified multiwall carbon nanotube paste electrode

A carbon paste electrode(CPE) chemically modified with multiwall carbon nanotubes and ferrocene(FC) was used as a selective electrochemical sensor for the simultaneous determination of trace amounts of cysteamine(CA) and folic acid(FA).This modified electrode showed very efficient electrocatalytic activity for the anodic oxidation of CA.The peak current of differential pulse voltammograms of CA and FA increased linearly with their concentration in the ranges of 0.7-200μmol/L CA and 5.0- 700μmol/L FA.The detection limits for CA and FA were 0.3μmol/L and 2.0μmoI/L,respectively.The diffusion coefficient(D) and transfer coefficient(α) of CA were also determined.These conditions are sufficient to allow determination of CA and FA both individually and simultaneously.
南京早期引种的美国山核桃不同单株果实形态特征分析

以南京地区早期引种美国山核桃优良单株的果实为对象，分析9个美国山核桃单株果实形态特征。研究结果表明，不同单株果核长、核宽、核厚、长宽比、单核重、果仁重、出仁率均达极显著差异水平，获得美国山核桃在南京地区果实变异规律，通过相关数据分析选育出适合江苏本地生产发展的大粒、饱满的优良单株苏选4号和苏选6号，为美国山核桃良种选育工作提供研究基础。
猕猴桃温室幼苗期营养补给研究

为了寻求猕猴桃幼苗最佳叶面营养补给浓度以及土壤营养补给配方，采用中科环境公司生产的基质穴盘育苗，以史丹利复合肥液对温室猕猴桃幼苗进行喷雾、灌根，5叶后幼苗移植到直径10 cm的营养钵，在猕猴桃生长的适宜条件下进行配土试验。结果表明，猕猴桃1~3叶幼苗对史丹利叶面喷施或灌根浓度的最大上限为1%，安全上限为0.5%，4~10叶上限为1.5%，安全上限为1.0%；1~4叶期喷施的最佳浓度为0.2%~0.4%，5~10叶期喷施的最佳浓度为0.6%~1.0%，配土营养补充试验结果显示，以牛粪比土壤按1∶1或2∶1效果最佳，幼苗生长健壮，长势整齐一致，后发性好，以基质和土壤配比，幼苗前期生长良好，但后期易脱肥，应注意补给营养，三混一配比试验结果表明，基质、土壤、牛粪以1∶1∶1均等配比效果最好，幼苗生长健壮。
4个美洲黑杨无性系花粉的贮藏与萌发特性

花粉萌发以及花粉管的伸长是植物能够结实的基础，是植物杂交育种成败的关键。本研究以美洲黑杨4个无性系花粉为试验材料，研究其在不同贮藏条件下花粉生活力的变化情况。结果表明：因切枝水培温度过高(30℃)，S 3412和S 3265无性系新鲜花粉的生活力已经为0，而S 3114和S 3804无性系所在的水培温度为20℃，新鲜花粉的萌发率较高，分别为48.02%、31.18%。常温贮藏过程中，S 3114和S 3804无性系花粉生活力下降极快，2 d后花粉全部丧失生活力，因此杨树花粉不宜在常温下贮藏；在冷藏(4)和冷冻(-20℃)条件下，花粉生活力下降较常温贮藏时缓慢，尤以-20℃贮藏条件下生活力要高些。两种低温条件下，S 3114花粉生活力均可保持10 d，S 3804可保持4 d。
黏膜给药系统评价方法的研究进展

目的综述黏膜给药系统评价方法的研究进展。方法检索并阅读近年国内外文献,对鼻、眼、口腔黏膜给药系统的体内外评价方法进行整理、分析和归纳。结果各类黏膜给药系统具有不同的评价方法,主要从体外法、体内法、刺激性等评价方法和应用技术方面进行综述。结论目前关于黏膜给药吸收的体内外评价方法并不完善,这是限制黏膜给药制剂发展的主要障碍。今后应针对不同的黏膜给药系统,进一步建立和完善相应的系统评价体系,研究和应用新型技术,以弥补现行评价方法的不足,促进黏膜给药制剂的发展。
铅酸蓄电池制造业卫生防护距离标准研制

卫生防护距离(health protection zone)是产生有害因素的部门(车间或工段)的边界至居住区边界的最小距离~(〔1〕),其作用是为企业无组织排放的大气污染物提供一段稀释距离,使污染气体到达居民区时的浓度符合国家标准~(〔2〕)。铅酸蓄电池生产企业在生产过程中存在含铅废气的无组织排放，对周边大气环境污染比较严重，在无组织排放源所在的生产车间与居住区之间应设置卫生防护距离。中国现行的(GB11659-89)《铅蓄电池厂卫生防护距离标准》~(〔3〕）从开始研制至今已有20多年，这期间随着科学技术的快速发展，铅酸蓄电池制造业发生了巨大的变化，企业的污染物排放情况已明显减少。同时由于企业生产能力的提升，产品种类的丰富，企业的生产规模也有所扩大。由此可见，该标准已明显滞后于我国铅酸蓄电池制造业的发展水平，已不能适应当今经济发展和人群健康的需求，亟需修订。本研究经过现场调查与监测，提出符合我国国情的铅酸蓄电池制造业卫生防护距离标准。
近红外光谱在中药鉴别和质量控制中的应用

目的:了解近红外光谱在中药鉴别和质量控制中的研究进展。方法:根据文献综述近红外光谱在中药真伪鉴别、掺伪鉴别、产地鉴别、种类分析以及在线质量控制中的研究现状。结果:近红外光谱是一门分析速度快、分析效率高、样品无需预处理,便于在线分析的样品无损失的技术,与传统的方法比较,其具有高效、快速、对样品无损等优点。结论:未来随着化学计量学的不断发展和完善,近红外光谱在中药分析领域的应用前景将越来越广阔,有利于促进和推动中药现代化和国际化进程。
2001-2011年间内蒙古师范大学国家自然科学基金资助情况统计与分析

本文对内蒙古师范大学2001—2011年国家自然科学基金(以下简称科学基金)资助项目情况作了统计,并与同类院校进行比较分析,揭示我校自然科学基础研究的优势和不足,以期为我校未来学科建设规划发展及科研管理决策等提供借鉴和参考。
原生态工程，文明传续的古老载体

手艺中国：中国手工业调查图录》是在一位有远见和人文关怀的美国人亨利·查普曼·莫瑟（Henry Chapman Mercer）策划并资助下， 由德裔美国人鲁道夫·P.霍梅尔（Rudolf P. Hommel） 在20 世纪20 年代的中国乡村走访、拍摄、记录8年，又经10 年潜心钻研，著就的记载着中华古工艺文化的史册，该书1937 年由纽约John Day Company 出版。
关于四大发明的争议和思考

1四大发明的来历我们从小受教育,对四大发明都很熟悉,也一直将它们当作中国的荣光。但另一方面,对四大发明的争议和批评也很多。这些批评有的很夸张,情绪比较激烈。所以四大发明值得我们略加讨论。
早期帕金森病大鼠胶质细胞免疫反应活性的改变及其意义

目的:观察早期帕金森病(PD)大鼠脑内胶质细胞的免疫反应活性改变。方法:采用6-羟多巴胺(6-OHDA)制备PD早期大鼠模型,实验动物分为早期PD组和对照组。实验动物进行阿朴吗啡诱发旋转运动测试后,进行迈步实验的测试。免疫组织化学观察早期PD发病大鼠脑内星形胶质细胞和小胶质细胞的免疫反应活性改变。结果:早期PD动物在30 min内旋转次数小于7r/min,迈步实验中,与对照组相比,早期PD动物在左前肢从开始迈步至返回鼠笼所需要的总时间和所迈的步数没有明显差异;PD早期大鼠脑内星形胶质细胞和小胶质细胞的免疫反应活性明显增高。结论:早期PD大鼠尽管行为学上没有明显异常改变,但其脑内星形胶质细胞和小胶质细胞出现异常改变,这可能参与早期PD大鼠发病过程。
电压敏感染料DiBAC4(3)用于检测胚胎细胞膜电位变化的研究

目的:探讨电压敏感染料DiBAC4(3)用于检测胚胎细胞膜电位变化的可行性。方法:分别取单细胞期胚胎、二细胞期胚胎、囊胚期胚胎,用M16孵育0.5 h后加入终浓度5μmol/L的DiBAC4(3)溶液,每隔10min在荧光显微镜下或激光共聚焦显微镜下观察胚胎细胞荧光强度变化,0.5 h后实验组加入终浓度100mmol/L的KCL溶液,对照组加入与KCL溶液等量的M16,每隔5 min观察胚胎细胞荧光强度变化。结果:每个时期的胚胎细胞都可以被DiBAC4(3)染色,没加KCL前半小时荧光强度随时间缓慢增强,加KCL后即刻荧光强度显著增强,且在15 min内荧光强度随时间增强。结论:电压敏感染料DiBAC4(3)可以用于胚胎细胞膜电位变化的检测。
阳山鸡的生产性能研究

为了解阳山鸡生产性能的基础数据，对阳山鸡繁殖性能和生长性能进行测定。结果表明:阳山鸡的开产日龄在141~150日龄之间，开产体重为1 661 g左右，初生蛋重为38 g左右，年平均产蛋率为26.7%，平均受精率和孵化率分别为87.7%、75.42%；在0、5、9、13、16周龄时，平均体重分别为28.73、307.49、664.28、1 210.28、1 460.54 g，其不同阶段平均日增重分别为7.95、12.74、19.50、11.92 g。
正交多项式在肥料效应函数研究中的应用

肥料效应函数模型是我国平衡施肥中广泛应用的一种方法，大多采用多项式回归设计进行配置肥料效应函数，以此反映施肥量与产量之间的数量关系，而应用一元非等距正交多项式建立的函数模型有以下的优点:不需要解正规方程组，因而可有效地避免正规方程出现病态；各效应系数之间不存在相关性，计算量比一般的多项式回归模型小；函数模型的检验比较简单。