电子时代的医学图书馆馆员和循证医学

 

简要阐述了循证医学的概念及其基本特点，探讨了电子时代循证医学对于医学图书馆员的要

求，同时提出了电子时代医学图书馆员应该具备的知识和技能。

     

Simple diagnosis using ethanol immersion of strawberry plants with latent infection by Colletotrichum acutatum, Dendrophoma obscurans, and Fusarium oxysporum f. sp. fragariae

Simple diagnosis by ethanol immersion (SDEI) to detect Glomerella cingulata was used to detect three other fungi that also cause latent infection of strawberry plants. Signs on strawberry leaves with asymptomatic latent infection by Colletotrichum acutatum became visible using SDEI. Salmon-pink conidial masses were produced in the acervuli on the treated leaves 5 days after incubation at 28°C. In the case of Dendrophoma obscurans, pycnidia with amber conidial masses formed 5 days after incubation at 28°C. The pycnidia were observed mainly on the ribs, and conidial masses exuded from the ostiole. These macroscopic conidial masses were similar to those of G. cingulata and C. acutatum. When water was dripped onto a lesion caused by D. obscurans, the pycnidia exuded white filamentous conidial masses, making the distinction of D. obscurans from G. cingulata or C. acutatum. On petioles with latent infection by Fusarium oxysporum f. sp. fragariae, white aerial hyphae grew out from the vascular tissues on the cut surface 3 days after incubation at 28°C and were easily observed by eye or with a loupe. Thus, SDEI was also useful for diagnosing latent infection of strawberry plants by C. acutatum, D. obscurans, and F. oxysporum f. sp. fragariae.     

Trichoderma Biocontrol of Colletotrichum acutatum and Botrytis cinerea and Survival in Strawberry

Trichoderma isolates are known for their ability to control plant pathogens. It has been shown that various isolates of Trichoderma, including T. harzianum isolate T-39 from the commercial biological control product TRICHODEX, were effective in controlling anthracnose (Colletotrichum acutatum) and grey mould (Botrytis cinerea) in strawberry, under controlled and greenhouse conditions. Three selected Trichoderma strains, namely T-39, T-161 and T-166, were evaluated in large-scale experiments using different timing application and dosage rates for reduction of strawberry anthracnose and grey mould. All possible combinations of single, double or triple mixtures of Trichoderma strains, applied at 0.4% and 0.8% concentrations, and at 7 or 10 day intervals, resulted in reduction of anthracnose severity; the higher concentration (0.8%) was superior in control whether used with single isolates or as a result of combined application of two isolates, each at 0.4%. Only a few treatments resulted in significant control of grey mould. Isolates T-39 applied at 0.4% at 2 day intervals, T-166 at 0.4%, or T-161 combined with T-39 at 0.4% were as effective as the chemical fungicide fenhexamide. The survival dynamics of populations of the Trichoderma isolates (T-39, T-105, T-161 and T-166) applied separately was determined by dilution plating and isolates in the mixtures calculated according to the polymerase chain reaction (PCR) using repeat motif primers. The biocontrol isolates were identified to the respective species T. harzianum (T-39), T. hamatum (T-105), T. atroviride (T-161) and T. longibrachiatum (T-166), according to internal transcribed spacer sequence analysis.     

以红色文化推进社会主义核心价值体系建设

红色文化有着自身的显著特点，它是最具民族性的先进文化，最具科学性的先进文化，最具大众性的先进文化，最具时代性的先进文化。红色文化的时代价值表现为：弘扬红色文化有利于巩固马克思主义指导地位，有利于人们树立崇高的理想信念，有利于人们确立改革创新的时代精神，有利于人们形成良好的道德品质。红色文化的优秀品质为社会主义核心价值体系建设提供了丰富养料和土壤，以红色文化推进社会主义核心价值体系建设，必须处理好红色文化与多元文化、红色文化与校园文化、红色文化与网络文化的关系。     

湛江儿童公园景观设计

方案设计将以"儿童"为设计的主旨,配备与时俱进的功能和设施,丰富多彩的游乐场地,从本土特色海洋文化和传统中寻找设计灵感和元素,使得设计中更富有地域特色,帮助儿童认识和热爱家乡,从而打造极富特色并能够培养和锻炼孩子各方面能力,极具启发性、互动性、娱乐性的寓学于乐的儿童公园。     

大中小型拖拉机压实对土壤坚实度和大豆产量的影响

探讨农业机械压实对土壤坚实度和产量的影响规律，对改善作物生产环境、促进农业机械化向质量型转变具有重要意义。以东北典型黑土区耕地土壤为研究对象，依照随机区组试验原理，选择大、中、小3种型号拖拉机进行6种压实处理，同型拖拉机相同压实次数试验重复3次，采用PV6.08型贯穿阻力仪测量压实轮辙截面土壤坚实度。试验结果表明：土壤坚实度随压实次数增加而逐渐递增，3种拖拉机压实测试截面浅层均出现明显压实核，且压实核内土壤坚实度随压实次数增加而逐渐增大，CASE-210型拖拉机压实对表层土壤坚实度影响程度和范围最大，压实12次时压实核处土壤坚实度达4.0 MPa，JD-280型拖拉机对深层土壤压实影响程度和范围最大，在65~80 cm的土壤深层坚实度的峰值达3.2 MPa；拖拉机压实均导致大豆产量降低，CASE-210、JD-904和JD-280拖拉机压实12次时大豆产量分别降低了21.24%、18.15%和12.38%。     

Asymmetric Exhaustive Service Polling System with Bernoulli Feedback

This paper studies asymmetric exhaustive service polling system with Bernoulli feedback,gives the distributions of queue lengths and sojoun times,and obtains some other results,in stationary condition.     

黑龙江省江川灌区灌溉水资源的综合评价

在介绍江川灌区流域概况的基础上，提出了该灌区所面临的地下水灌溉水稻米质差、产量低、大米销路不好等问题的解决办法，即发展地表水灌溉水稻，通过引松花江水来解决灌溉水源；分别对地下水、地表水(松花江水)的水量和水质进行评价。结果表明，该灌区的地下水严重超采、水质中总铁量超标(超6mg/L)，pH值偏碱，不适合用于农业灌溉；地表水(松花江水)除铁离子略高外，其余各项指标均满足灌溉要求，为该灌区引松花江水灌溉水稻提供了较为科学的依据。     

论拖拉机造型的时代性

通过回顾拖拉机造型的发展过程，分析了不同时期拖拉机的各种造型特征，提出了各个阶段拖拉机造型的模型，指出为适应市场竞争，必须重视拖拉机造型设计。     

等肥量下不同分施次数对番茄产量及品质的影响

本研究旨在明确基质栽培条件下番茄较佳的施肥次数,为科学施肥提供理论支持.以番茄品种'喜临门'为试材,在生育期间施肥总量相同的前提下(N 542.30 kg/hm2、P2Os 212.6 kg/hm2、K2O 680.4 kg/hm2),设置5个施肥次数,CK:次/20天,8次、T1:次/4天,36次;T2:次/8天,1...