北宋初期诗学理论中的儒家思想

北宋初期,柳开、石介、王禹偁等人掀起了一场轰轰烈烈的诗文革新运动,他们提出了鲜明的文学理论并积极从事文学批评或文学创作实践活动,虽然他们的观点不尽相同,但对“道”的提倡是他们共同的主张,使北宋初期诗学理论中弥漫着浓厚的儒学思想,为程朱理学的兴起和儒家诗教原则的成熟准备了丰厚的话语资源。     

早期现代主义产品形态变化的驱动因素

概述了早期现代主义产品形态变化的主要特点,对产品形态从物质基础与审美观念两个层面加以观照,并进行详尽地对比分析。通过这一时期产品形态的对比,试图从社会变革、艺术观念、技术与生产以及理念形态与功能实现的结合点等方面,来阐释早期现代主义这一特定时期产品形态变化的驱动因素。     

论少儿篮球早期训练

本文通过资料收集及训练实践探索少儿篮球训练的思路及方法为我国篮球运动的发展提供参考     

广州地区前华夏植物群研究

广州地区晚泥盆世至早石炭世植物群计 2 3属 4 1种,以真蕨纲和种子蕨纲为主,石松纲居次,另外还有少量楔叶纲、科达纲及种子化石.按地层分布当前植物群可分为沙水岗组植物组合、龙江组植物组合及测水组植物组合.分析该植物群的组成特征,其性质属前华夏植物群     

Speciation of the genus Arthricocephalus Bergeron, 1899 (Trilobita) from the late Early Cambrian and its stratigraphic significance

The genus Arthricocephalus Bergeron, 1899 is revised, and Halipanktos Balker & Peel, 1997 is suggested here as a senior synonym. The subgenus Arthricocephalus (Arthricocephalites) Chien & Lin in Lu et al., 1974 is considered as a separate genus. Of the 20 previously assigned species of Arthricocephalus (Arthricocephalus) Bergeron, 1899, Arthricocephalus (Arthricocephalites) Chien & Lin in Lu et al., 1974, Arthricocephalus (Euarthricocephalus) Ju, 1983 are lumped into eight species. The speciation trend of Arthricocephalus and Arthricocephalites is demonstrated based on their stratigraphic occurrences. It not only enhances the resolution of the biostatigraphic zonation in the uppermost Lower Cambrian, but also represents a potential candidate to define the Duyunian stage. The base of the stage is suggested at the first appearance datum (FAD) of Arthricocephalus chauveaui Bergeron, 1899 within the evolutionary lineage from Ar. jiangkouensis Yin in Yin & Li,1978 to Ar. chauveaui in a global scale.     

丙硫咪唑早期和重复治疗猪细颈囊尾幼病及增重试验

采用丙硫咪唑粉剂按90mg/kg 剂量间隔48小时三次口服投药治疗早期感染细颈囊尾蚴猪(感染30日龄),结果表明是安全、有效的,驱(杀)虫率高达99.7%,死虫完全吸收,与对照组比较,治疗组日增重和屠宰率均有明显提高(P<0.01),可进行扩大治疗试验.     

When horsetails became giants

Horsetails arose in the Late Devonian,evolved a greater diversity and forming fast growing bamboo-like thickets in the Carboniferous lowland swamp forest ecosystems.However,the diversity of this group drastically declined during the Permian while the climate became more dynamic and arid.Today only a single surviving genus exists,the herbaceous Equisetum.Here we report an exceptional large horsetail tree from the Early Permian Petrified Forest of Chemnitz.This fossil horsetail tree is assigned to Arthropitys bistriata (Cotta) Goeppert.It is 15 m high and over 25 cm in diameter,with thick wood and at least 3 orders of woody branching system formed a big canopy,and is morphologically very comparable with the living woody higher plants.This suggests that the plasticity mechanism of Permian calamitaleans enabled novel growth strategies when they competed with the rising gymnosperms during the environmental changes.     

Petrogenesis of Aoyougou high-silica adakite in the North Qilian orogen, NW China: Evidence for decompression melting of oceanic slab

A trondhjemitic body occurs in the Aoyougou area,the western part of the North Qilian orogen.It is geochemically characterized by high SiO 2,Na 2 O (high Na/K),elevated Sr/Y and (La/Yb) N,positive Sr anomaly,relatively enriched large ion lithophile elements (LILEs) and light rare earth elements (LREEs),and depleted Nb,Ta,Ti,resembling the high-silica adakite.Zircon U-Pb SHRIMP dating yields a weighted mean age of 438±3 Ma.This age is significantly younger than eclogitization ages of 460-490 Ma in the North Qilian orogen,suggesting that formation of the adakite postdates the subduction of oceanic crust in association with closure of the ancient Qilian Ocean.Whole-rock Sr and Nd isotopic analyses give initial ratios of I Sr =0.7044 0.7047 and Nd (t)=3.0 4.1,indicating that they are derived from partial melting of the juvenile oceanic crust.In view of the tectonic evolution of the North Qilian orogen,the high-silica adakite was probably derived from decompression melting of the exhumed eclogite at the depth of ～60 km.     

Starch grain evidence reveals early pottery function cooking plant foods in North China

Early pottery sherds excavated in northern China date back to more than 11,000 cal a BP, and are presumed to have been used as cooking vessels. There has been, however, no direct evidence to demonstrate this function. Here we report ancient starch grains recovered from carbonized residues adhering to the bases of flat- bottomed vessels excavated from the Zhuannian site dating more than 10,000 cal a BP in the North China Plain. This evidence demonstrates that early pottery was being used to cook cereal grains, particularly millets, and acorns. Because millets were in the process of domestication at thistime, we propose that pottery invention in northern China may have been related to early farming activities.     

川西拗陷上三叠统断层封闭性研究

本文用裂缝充填物、碳氧同位素、声发射、包体均一温度测定等方法确定川西拗陷上三叠统断层形成期次,研究其与油气演化的匹配关系;用钻井、流体性质、地层压力、断层面剖面图、断裂带地面调查等多种方法和资料,综合研究该区内断层的纵向、横向及有效封闭性。并进行区域评价,指出了封闭条件差、中等、好、极好的地区,为提高勘探效益提供了直接铱据。