上海市水产品流通市场的现状

1978上以后，我国的水产品销政策发生了历史性的转折。但是，20多年过去了，完善的市场机制下的水产品流通体制还没有完全建立。通过对上海市水产品流通业态、水产品主要流通渠道及其流通量的调查，简析了上海市水产品的流通结构和消费特点。调查表明，上海水产品的流通现状表现出明显的消费地市场和产地市场分离现象、水产品批发市场规模小而乱、同业间恶性和无序竞争和市场信息系统不够完善。加入WTO后，国外水产品的竞争，使我国水产品流通市场面临许多严峻的挑战。     

农民非农就业对加剧广东劳动力市场分化的影响

劳动力被划分到不同的市场中去,是科学技术和社会经济发展的客观需要。农民工作为一支不可忽视的就业力量,参与了社会经济活动,创造了财富和价值,但绝大部分农民工仍然陷于贫困境地并趋于贫困永久化。应当尽快改变这种局面,使农民工能真正走出贫困,缓减劳动力市场分化的负面影响。     

产学研结合技术创新的市场机制与联合模式

产学研结合技术创新的市场机制与本质特征不同于计划经济时代工厂、学校与科研单位大协作,文章结合湖南的企业技术创新、高校科技产业发展和大学科技园区建设对产学研结合创新体系的作用、进展与联合模式进行分析讨论.     

适应市场国际化发展蔬菜设施生产

分析我国蔬菜设施生产的现状。提出在市场国际化形势下，蔬菜设施生产要实施人才战略，走产业化和标准化道路。     

民法理念

民法理念的形成和发展在西方具有悠久历史,我国由于缺乏相应的经济和法律环境,民法理念从来没有成为社会政治和民众生活的主流意识。民法理念就是司法理念,其核心表现为私权神圣、私法自治。民法理念还是市民社会法理念,主要体现社会成员介人意志的社会关系,它以私人利益为出发点和归宿,体现着商品生产和交换的一般条件。     

从梵剧的蜕变看唐代民间戏乐表演市场对戏剧艺术的双重作用

唐代经济文化繁荣，民间的戏乐表演活动十分活跃，然而，起源于印度，当时已发育成熟的梵剧却未能以其完整的形态传入中国，而是在东渐的途中逐步蜕化成一种与之既有密切联系又有较大差异的新艺术样式——唐代寺院里的俗讲。这种韵散结合、或讲唱或咏唱的叙事性的说唱艺术，对后世中华戏曲的诞生有着直接的影响和作用。据此，笔者认为其时唐代的戏剧艺术尚未发育成熟，真正独立意义上的戏剧市场尚未形成，建立在中国传统审美习惯与审美能力基础之上的民间戏乐表演市场对戏剧艺术具有双重作用，即对东渐的梵剧艺术的制约作用和对唐代初级形态戏剧艺术的促进作用。     

Detecting and estimating segregation distortion and linkage between glufosinate tolerance and blackleg resistance in Brassica napus L.

Summary The segregation and linkage between glufosinate (transgenes ‘Rf3’ and ‘T177’) and blackleg resistance genes in canola (Brassica napus L.) were assessed using F₁ microspore-derived doubled haploid (DH) populations from four crosses including reciprocals, two involving the transgene ‘Rf3’ and the other two involving the transgene ‘T177’. To relax the assumption of no segregation distortion required for the conventional analysis of segregation and linkage, we employed Bailey's analysis that allows detecting segregation distortion at linked loci. The significant departures from the 1:1 segregation were detected in the crosses involving the transgene ‘T177’ but not in the crosses involving the transgene ‘Rf3’. The apparent deficit of the herbicide tolerant DH lines in the crosses with the transgene ‘T177’ is likely due to differential selection against the gametes carrying ‘T177’ during microspore culture. The linkage was strong between blackleg resistance and the transgene ‘Rf3’ but weak or absent between blackleg resistance and the transgene ‘T177’, suggesting that the two transgenes are probably inserted into distant regions of the genome. The observed linkage offers an opportunity to develop new canola cultivars with both glufosinate tolerance conferred by transgene ‘Rf3’ and blackleg resistance.     

A Review on Class D Audio Power Amplifier Control Techniques

Although class D amplifier has high efficiency, its distortion is larger than linear counterparts due to switching behaviour of power transistors. It is the hotspot of power electronics and audio power amplifier that researching new control technique to improve fidelity of class D amplifier. In this paper, a few novel control techniques in class D audio power amplifier are reviewed.     

辽宁葡萄市场销售分析

根据辽宁省鲜食葡萄市场流向,将鲜食葡萄销售大致划分为3个区域。并针对鲜食葡萄如何走向国际市场提出了几点建议。     

Strategies of Foreign Market Entry on the Basis of Strategic Alliance

By analyzing the achievements the TTX company and QI company gained on the basis of strategic alliance, this paper proves that strategic alliance is an effective mode of foreign market entry by Chinese enterprises, especially, private, small and medium enterprises, and they can actually promote their competence and acquire profit upon restricted resources by making an alliance with partners. This paper also discusses the problems exist in the alliance and the threat TTX faces, and put forward effective countermeasures.