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31.
Rajput ZI Hu SH Arijo AG Habib M Khalid M 《Journal of Zhejiang University. Science. B》2005,6(11):1057-1062
INTRODUCTION The world population of buffaloes(Bubalus bubalis)has been estimated at over172million head,more than97%(167.6million)of which are in Asia and the Pacific region,mainly in India(97.7million)and Pakistan(25.5million)(FAO,2004).About98%of buffaloes in the region are raised by small farmers owning less than two hectares of land and less than five buffaloes(Mudgal,1992).In general,the water buffalo is regarded as more productive,healthier and more useful than the cow,especiall… 相似文献
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北太平洋巨型章鱼是170余种巨型章鱼中的一种。人们曾经误把它们看成为海怪,实际上,它们性格平和,并不像古老传说描述的那样会攻击船只。 相似文献
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Radio is migrating to digital transmission, expanding its offerings to include captioning for individuals with hearing loss. Text display radio requires a large amount of word throughput with minimal screen display area, making good user interface design crucial to its success. In two experiments, we presented hearing, hard-of-hearing, and deaf consumers with National Public Radio stories converted to text and examined their preferences for and reactions to midsized and small radio text displays. We focused on physical display attributes such as text color, font style, line length, and scrolling type as well as emergency alert messages and emergency prompts for drivers, announcer identification schemes, and synchronization of audio and text. Results suggest that midsized, Global Positioning System (GPS)-style displays were well liked, synchronization of audio and text was important to comprehension and retrieval of story details, identification of announcers was served best with a combination of name change in parenthesis and color change, and a mixture of color and flashing symbols was preferred for emergency alerting. 相似文献
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The emerging reading and spelling abilities of 24 deaf and 23 hearing beginning readers were followed over 2 years. The deaf children varied in their language backgrounds and preferred mode of communication. All children were given a range of literacy, cognitive and language-based tasks every 12 months. Deaf and hearing children made similar progress in literacy in the beginning stages of reading development and then their trajectories began to diverge. The longitudinal correlates of beginning reading in the deaf children were earlier vocabulary, letter-sound knowledge, and speechreading. Earlier phonological awareness was not a longitudinal correlate of reading ability once earlier reading levels were controlled. Only letter name knowledge was longitudinally related to spelling ability. Speechreading was also a strong longitudinal correlate of reading and spelling in the hearing children. The findings suggested that deaf and hearing children utilize slightly different reading strategies over the first 2 years of schooling. 相似文献
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Identification of distinct units within a continuous flow of human action is fundamental to action processing. Such segmentation
may rest in part on statistical learning. In a series of four experiments, we examined what types of statistics people can
use to segment a continuous stream involving many brief, goal-directed action elements. The results of Experiment 1 showed no evidence for sensitivity to conditional probability, whereas Experiment 2 displayed learning based on joint probability. In Experiment 3, we demonstrated that additional exposure to the input failed to engender sensitivity to conditional probability. However,
the results of Experiment 4 showed that a subset of adults—namely, those more successful at identifying actions that had been seen more frequently than
comparison sequences—were also successful at learning conditional-probability statistics. These experiments help to clarify the mechanisms subserving processing
of intentional action, and they highlight important differences from, as well as similarities to, prior studies of statistical
learning in other domains, including language. 相似文献
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曹文轩《草房子》的一小段文字《孤独之旅》被选人了初中语文课本,这是一段小学生杜小康走向成长的文字。大红门里的杜小康,因家道一落千丈而失学,其痛苦中的沉沦与奋争,撼人心魄。他跟父亲放鸭的那些日子,寂寞、孤独煎熬着他,也在摧生着他。暴风雨里,他像高尔基笔下那只搏击风浪的海燕,在莽莽苍苍的芦苇荡里狂奔着,追赶失散的鸭群。 相似文献
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夜闯博物馆我顿了顿,等侍者拿走菜单,才开口:“如果我们偷偷溜出旅馆,自己去博物馆,一定会出事的。”“不,不会的,托尼。”贾尼丝说,“我查过了,博物馆礼拜六晚上通常九点关门,我们只要赶在去看音乐剧的卡尔森小姐和其他同学回来之前回到旅馆就行了。”“来得及吗?”我有点担心。“这次作业我必须拿个好分数。”贾尼丝说,“否则,他们会把我从尖子班开除的。”“我也是。”贾森附和道,“上次我收集的资料不够,起码得再去一趟。”他们全都盯着我。点了点头:“好吧,反正我也要花更多的时间画我的动物草图,那些图要用在论文里。不过,在走之前,我… 相似文献
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伸展在晶格内的离子键很强,因此从晶格中移走离子是困难的。由于这个原因,离子型化合物具有较高的熔点和沸点。存在于共价型固体或液体中的分子间的作用力没有这样强(除1~2例外),使分子聚集在一起的作用力布遍于固体中也是不强的。考虑下列的气化热: 相似文献