东莞木鱼歌词语考释

东莞木鱼歌是东莞方言歌,里面充满了东莞方俗词语．择取其中十六个词语予以考释．     

A new South American genus and species in the amaryllidid group of lysianassoid Amphipoda

Erikus dahli, a new genus and species in the amaryllidid group of lysianassoid amphipods, is described and illustrated from South American material.     

Redescription of Leydigia parva Daday, 1905 and assignment to Parvalona gen. nov. (Cladocera: Anomopoda: Chydoridae)

A morphological investigation of Leydigia parva Daday, (Chydoridae: Anomopoda: Cladocera), based on specimens from Paraguay (type specimens) and Brazil, clarifies its position in the subfamily and prompts its assignment to a new genus, Parvalona. The affinity of this rare benthic chydorid with Leydigia Kurz, 1875 and Alona Baird, 1843, in which this taxon was placed earlier, is discussed.     

Observations on the spectral reflectances of certain high Andean Penaincisalia and Thecloxurina,with the description of a new species (Lepidoptera: Lycaenidae: Eumaeini)

The eumaeine hairstreak species Thecloxurina tegulina Bálint and Boyer, sp. n. from SW Peru, department Apurímac (type locality: Karkatera, NW of Ampay, 3,200 m, 13°34′286″S; 72°58′501″W) is described on the basis of qualitative and quantitative wing pattern, male genital and spectral characters. The spectral reflectance of the closely related genera Penaincisalia and Thecloxurina are investigated and compared. It is demonstrated that the spectral characteristics of the two genera are qualitatively differing, and the taxa investigated representing the two genera (Penaincisalia:Thecloxurina = 3:5) also have characteristic species dependent reflectance peaks measured at normal incidence.     

On neotropical Temnocephala (Platyhelminthes)

Fourteen of the 19 recorded species of neotropical Temnocephala are re-examined for new taxonomic characters and all records are tabulated. Autapomorphies found are eyespots with red, fugacious pigment, a characteristic pattern of syncytial epidermal plates and excretory pores enclosed within the boundaries of the paired post tentacular (‘excretory’) plates. The worms are rather homogeneous with regard to the genital structures (although T. brenesi has only one pair of testes) and appear to hold their tentacles in a consistent pattern. This suite of species is homogeneous, differing from worms from Australia currently assigned to the genus. Since the type of the taxon Temnocephalida, Temnocephala chilensis (Moquin-Tandon, 1846), has the suite of characters shown here, a new genus (Temnosewellia gen. nov.) is proposed to accommodate Australian representatives formerly in Temnocephala.     

基于机械记忆的词汇学习研究

本文调查了普通高校学生的词汇记忆现象，发现机械记忆单词非常普遍，通过实验研究表明，用机械记忆法记忆与自身水平相当的词汇是可行的，但在记忆难度超出自己水平的词汇时，效果不是太好，所以我们建议采用机械记忆．法时，应该区别词汇难度有选择地记忆单词．     

中美经济关系中的政治因素探析

中国加入世界贸易组织以后，中美之间的一些经济摩擦有了一个有效的解决平台。但是，由于中美两国在国际战略，意识形态，传统文化以及价值观念上存在着较大的差异，加之政治因素仍将不同程度地影响着中美经济关系的发展。对此，我们必须具有清醒的认识。     

美国社区图书馆信息服务简介

介绍了20世纪70年代以来美国社区信息服务的产生、美国社区网络的建立及公共计划的实施以及美国社区信息服务的发展趋势。     

浅析1794年美英和解的原因

因为一系列的原因，1794年初美英关系出现了危机，走到了战争的边缘。《杰伊条约》的签订阻止了战争的爆发，使美英之间达成了暂时和解。美英能够实现和解，是有主客观多方面原因的：美国对和平的追求是美国积极寻求和解的推动力，其领导人的努力成为和解的关键；而英国面临的客观形势则为和解实现提供了重要条件。     

英语词汇常见否定前缀辨析

词汇的积累和扩大是英语学习者最感困难的问题之一,也是英语教学中教师关注的焦点。结合英语的教学实际,对英语词汇中常见的否定前缀的来源、含义、构成和用法等进行了辨析。