湘西苗族舌运动类型的遗传学研究

对湘西苗族学生555例（男254例,女301例）的舌运动类型（卷舌、叠舌、翻舌、尖舌、三叶舌）进行了调查测试,结果表明：卷舌、叠舌、翻舌、尖舌、三叶舌出现率分别为69.01%,17.30%,19.64%,36.40%,40.36%;5种舌运动类型出现男女性别间均无显著差异（P＞0.05）;5项舌运动类型间相关性较小,仅有2对相关;翻舌基因与叠舌、尖舌基因间存在互作关系.     

A cryptic intermediate in the evolution of chameleon tongue projection

Summary An incipient form of tongue projection occurs inPhrynocephalus helioscopus, a generalized agamid lizard. We argue that this condition represents a functional intermediate between typical lingual prehension and chamaeleontid tongue projection, and that tongue projection evolved in chameleons by augmentation of ancestral mechanisms still operating in related, generalized lizards.     

大学英语阅读中母语迁移现象的初步研究

随着应用语言学的发展 ,人们越来越关注母语知识的第二语言习得过程中的作用 ,也取得了不少的研究成果。本文结合笔者的教学实践 ,通过阅读能力的构成成份的分析 ,探讨母语迁移现象在英语阅读学习中的作用 ,以及在教学中如何运用知识的这种迁移规律来提高英语阅读教学效果     

Electrical responses to taste chemicals across the dorsal epithelium of bullfrog tongue

Summary Stimulation of the bullfrog tongue with taste chemicals produced a slow change in transepithelial potential difference across the dorsal epithelium. The potential profile was in many respects similar to that of the intracellularly recorded potential changes in taste cells and to the activity of taste fibers in frogs.     

An improvement of the too cold tongue in the tropical Pacific with the development of an ocean-wave-atmosphere coupled numerical model

A common problem in the application of the coupled ocean-atmosphere general circulation models (CGCMs) without flux correction is that the simulated equatorial cold tongue in general tends to be too strong, narrow, and extending too far west. The causes are not well understood yet. One possible reason may be the simulated mixed layer depth (MLD) is too shallow in the tropical Pacific due to insufficient vertical mixing in the OGCM. It is believed that the wave-induced vertical mixing can greatly improve the simulation of the MLD and thermocline structure. In this study, the coupled ocean-atmosphere general circulation model (FGCM-0) incorporated with wave-induced mixing has been employed to simulate the tropical Pacific sea surface temperature (SST). Generally, the wave-induced mixing lowers the SST in the OGCM because the strengthened vertical mixing can bring more cold water upward. However, in the coupled model, the non-uniformity of the space distribution in SST drop generates a horizontal gradient of the sea surface air pressure, and thus yields surface wind field anomaly. The wind anomaly leads to both ocean surface circulation anomaly and downwelling anomaly, which can restrain the overly-westward extension of the cold tongue in the tropical Pacific. Compared with the model results from the original model (FGCM-0), the modeled SST is higher by more than 0.8℃, with a maximum of 1.2℃in the western Pacific (160—180°E, 0—3°N) . The eastern boundary of the isotherm of 26. 0℃also moves from 165°E to 180°E. The overly westward extension of the simulated equatorial cold tongue is suppressed with the incorporation of the wave-induced mixing in the coupled model. The simulated SST shows in general improved results with a maximum improvement of more than 1.0℃. The simulated SST improvement in the north tropical Pacific is much better than that of the south tropical Pacific.     

多功能电离子治疗机治疗口腔科疾病170例疗效分析

目的：多功能电离子治疗机治疗牙髓病、智齿冠周炎、舌系带矫正术、舌血管病、舌乳头状瘤、牙龈增生切除术,烧灼后创面形成焦痂即可达到止血的目的,又可起保护创面的作用,可防止术后感染.方法：电离子治疗机局麻下失活牙髓,用棉球蘸髓腔中已无血迹说明失活成功;治疗智齿冠周炎均为下颌及第三磨牙运中牙合面,将覆盖在智齿上的龈组织切除,牙根增生者化烧至正常牙龈组织面略深0.2 mm,舌系带过短、舌血管痛、舌乳头状瘤切除.结果：牙髓病观察一年以上复发2例,有效率94.9%,智齿冠周炎50例、20例舌系带矫正均痊愈.结论：电离子治疗机治疗牙髓病、智齿冠周炎、牙龈增生切除术、舌系矫正术、舌血管瘤、舌乳头状瘤切除术的治疗为一种新疗法.电离子治疗机热效扩张性较好,瞄准容易,切割准确,操作快,手术时间短,术野清楚,基本上无出血.