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.     

20世纪30年代青岛教育界的作家群落

青岛的文学创作在20世纪30年代出现了高峰景象,形成了教育界的作家群落。一批作家云集青岛大中小学教育领域,各类文学体裁佳作连篇。青岛的风土人情、学校师生生活成为创作素材,一些作家的创作生命在青岛得以升华。青岛教师作家队伍的壮大和文学创作的繁荣缘于青岛优越的地缘优势、兴盛的城市文化产业,教育的重视与普及为教师作家创造了生存的栖息地,国立青岛(山东)大学的创办构筑起教师作家的人才高地     

“中国昆曲美醉了!”

2015年2月14日是又一个浪漫的情人节。中国北方昆曲剧院应美国罗格斯大学孔子学院的特别邀请,来到美国新泽西州罗格斯大学尼格拉斯音乐中心作专场文化交流演出,受到当地观众的热烈追捧。演出之前,节目主持人用英文和中文向观众朋友们介绍了昆曲的起源、发展过程和表演形式,还专门介绍了昆曲的华丽服装及服饰,并介绍了为昆曲伴奏的主要中国传统乐器如     

试谈盈亏分析法在管理审计中的应用

在管理审计中，可以应用盈亏分析法对被审计单位的生产经营计划或工程项目进行考核、评价，据以改善管理，提高经济效益。本文除对盈亏分析法作了一般阐述外，着重通过例示介绍了在生产一种产品情况下盈亏平衡点的图示法、公式计算法，以及在生产多种产品情况下盈亏平衡点的公式计算法的应用。     

谈钢琴演奏中的音乐想象力

在钢琴演奏中具有丰富的音乐想象力才能体验音乐作品的情感内涵，正确塑造艺术形象，使音乐充满活力。本文就钢琴作品演奏中，如何对作品进行分析理解、发挥音乐想象提出几点看法。     

再谈高校有偿实习创新

论述了在知识经济时代顺应素质教育的要求，在高校进行学生有偿实习的必要性、重要性和作用，分析了存在的困难和问题，提出了如何有效开展有偿实习的若干建议．     

构筑一流的共享平台

通过国内著名高校利用“211”、“985”工程专项资金重点建设学校基础研究共享平台,从而迅速提高学校基础研究综合实力的事实,说明共享平台建设的重要性和必要性。该校共享平台有高水平的技术队伍和科学有效的管理机制,有学校的支持,必将构筑出国内一流的共享平台。     

论网络环境下的高校思想政治工作创新

网络条件下思想政治工作与传统思想政治工作相比，具有民主化、信息化、社会化等时代特征。现代网络技术为当代高校思想政治工作带来发展机遇的同时，也带来了严重的负面影响。因此，必须从如下几个方面创新高校思想政治工作机制：理顺管理体制；加强网络研究，探索传播规律；强化法制意识，规范网上行为；采用新的工作内容、方法和技术。     

积极践行“三个代表”重要思想 公道正派搞好组织人事工作

本文结合自己的工作实际,畅谈学习“三个代表”重要思想,开展“树组工干部形象”活动的重要意义及落实其要求的五项具体措施。