学生小组授课法在跨文化交际课程中的尝试

选修课程大多以合堂课的形式进行,教师讲授为主,学生的主动性与积极性难以激发,学习效果受到严重影响。本文笔者通过在跨文化交际课程中鼓励学生小组进行授课的形式,改变传统的教学模式,进而提高学生参与学习的主动性、积极性。     

4Cr14Ni14W2Mo的相图计算及曲线分析

在分析典型的4Cr14Ni14W2Mo耐热钢的成分基础上,通过采用Thermo-Calc软件作为热力学计算工具,对奥氏体热强钢4Cr14Ni14W2Mo的伪二元平衡相图的转变过程进行了理论计算,对该实验钢种的相组成与温度之间的关系进行了定量分析,为实际的生产起到了一定理论的指导作用。     

实现马克思主义大众化的有效传播

努力提升传播方式的亲和力和感召力,是使马克思主义大众化获得最佳传播效果的重要因素.为此,我们要认真研究今天凸显的群体心理、分众特征和个性化趋势,着力实现有亲和力的传播;要高度关注今天受众的内在需求、情感取向和兴趣趋势,着力实现有感召力的传播.     

一部展现学术生命年轮的著作——读吴功正先生《披星戴月集》

2010年12月凤凰出版传媒集团出版了著名美学家吴功正教授的《披星戴月集》。吴先生多年来治学甚勤，成果丰富，其在海内外出版的个人独撰的文学、美学和美学史研究著作就有23部，在海内外发表论文400多篇，其中不少是学术领域的开拓之作。     

WCDMA手机状态迁移策略优化

针对WCDMA网络中手机终端存在的4种状态,从原理上分析4种状态的差异,并针对CELL_FACH及CELL_PCH状态进行开通验证,从后台指标统计、前台DT/CQT测试以及信令分析等多方面评估CELL_FACH及CELL_PCH对现网的增益及负面影响,为今后的优化进行新的摸索尝试.     

Simultaneous changes in seed size,oil content and protein content driven by selection of SWEET homologues during soybean domestication

Soybean accounts for more than half of the global production of oilseed and more than a quarter of the protein used globally for human food and animal feed. Soybean domestication involved parallel increases in seed size and oil content, and a concomitant decrease in protein content. However, science has not yet discovered whether these effects were due to selective pressure on a single gene or multiple genes. Here, re-sequencing data from >800 genotypes revealed a strong selection during soybean domestication on GmSWEET10a. The selection of GmSWEET10a conferred simultaneous increases in soybean-seed size and oil content as well as a reduction in the protein content. The result was validated using both near-isogenic lines carrying substitution of haplotype chromosomal segments and transgenic soybeans. Moreover, GmSWEET10b was found to be functionally redundant with its homologue GmSWEET10a and to be undergoing selection in current breeding, leading the the elite allele GmSWEET10b, a potential target for present-day soybean breeding. Both GmSWEET10a and GmSWEET10b were shown to transport sucrose and hexose, contributing to sugar allocation from seed coat to embryo, which consequently determines oil and protein contents and seed size in soybean. We conclude that past selection of optimal GmSWEET10a alleles drove the initial domestication of multiple soybean-seed traits and that targeted selection of the elite allele GmSWEET10b may further improve the yield and seed quality of modern soybean cultivars.     

Wearable skin-like optoelectronic systems with suppression of motion artifacts for cuff-less continuous blood pressure monitor

According to the statistics of the World Health Organization, an estimated 17.9 million people die from cardiovascular diseases each year, representing 31% of all global deaths. Continuous non-invasive arterial pressure (CNAP) is essential for the management of cardiovascular diseases. However, it is difficult to achieve long-term CNAP monitoring with the daily use of current devices due to irritation of the skin as well as the lack of motion artifacts suppression. Here, we report a high-performance skin-like optoelectronic system integrated with ultra-thin flexible circuits to monitor CNAP. We introduce a theoretical model via the virtual work principle for predicting the precise blood pressure and suppressing motion artifacts, and propose optical difference in the frequency domain for stable optical measurements in terms of skin-like devices. We compare the results with the blood pressure acquired by invasive (intra-arterial) blood pressure monitoring for >1500 min in total on 44 subjects in an intensive care unit. The maximum absolute errors of diastolic and systolic blood pressure were ±7/±10 mm Hg, respectively, in immobilized, and ±10/±14 mm Hg, respectively, in walking scenarios. These strategies provide advanced blood pressure monitoring techniques, which would directly address an unmet clinical need or daily use for a highly vulnerable population.     

A Contrastive Study of the Chinese and British Table Manners

The table manners refer to the rules and standard of behaviors that people should abide by in the formal dining process?es. Due to the different cultural backgrounds, there are different cultures of ta...     

复活钝化的生活感知——《他究竟是已死或仍活着?》中的陌生化艺术

马克·吐温的短篇小说《他究竟是已死或仍活着？》通过陌生化的艺术处理和布局,深刻揭露了被资本主义异化的社会、人性,使读者在习惯化感知的影响下也能以新奇的目光在阅读过程中获得陌生的审美体验,激发人们对早已习焉不察的生活产生新的发现和反省,复活钝化的生活感知.     

新课程理念下生物学习题课教学的有效性

本文从生物学习题课的备课和上课两方面阐述了如何进行生物学习题课的有效教学,并列举一些实例加以评析。