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| 1 | Wavelet denoising via sparse representation显示文摘Wavelet threshold denoising is a powerful method for suppressing noise in signals and images. However, this method often uses a coordinate-wise processing scheme, which ignores the structural properties in the wavelet coefficients. We propose a new wavelet denoising method using sparse representation which is a powerful mathematical tool recently developed. Instead of thresholding wavelet coefficients individually, we minimize the number of non-zero coefficients under certain conditions. The denoised signal is reconstructed by solving an optimization problem. It is shown that the solution to the optimization problem can be obtained uniquely and the estimates of the denoised wavelet coefficients are unbiased, i.e., the statistical means of the estimates are equal to the noise-free wavelet coefficients. It is also shown that at least a local optimal solution to the denoising problem can be found. Our experiments on test data indicate that this new denoising method is effective and efficient for a wide variety of signals including those with low signal-to-noise ratios. | ZHAO RuiZhen LIU XiaoYu Ching-Chung LI Robert J. SCLABASSI & SUN MinGui | 2009 | Science in China(Series F)2009，52，8： | 26 |
| 2 | Nuclear reprogramming: the zygotic transcription program is established through an“erase-and-rebuild” strategy显示文摘卵母细胞显示母亲特定的基因表达式侧面,它被换到当染色质的一个单倍体集合被传递到发展成一个胚胎的受精卵时, zygotic 介绍。位于这抄写 reprogramming 下面的机制当前是未知的。等到当抄写在幼芽的泡卵母细胞被关掉时,一般抄写因素和 transcriptional 管理者的一个范围从染色质被分裂,这里,我们表明那。染色质因素(CF ) 的全球分离破坏在染色质和 CF 之间的物理接触并且在功能的水平导致母亲的抄写节目的檫除。与染色质论坛分开的批评抄写因素和管理者遗体延长了时期,并且立即在专业版以后与染色质成为 re-associated 原子形成。Thisis 由象 DNA 和抄写那样的原子功能的重建跟随了速度集合。我们建议母亲的抄写节目在卵子发生期间被擦掉产生相对天真的染色质, zygotic 抄写节目是在授精以后的重建的重新。这个过程作为“ erase-and-rebuild ”被称为过程,它被用来重设抄写节目,和最可能的其它原子过程也,从母亲的到胚胎的。我们进一步在伴随的纸出现(高 T,等,房间物件 2007;17:135-150 .) 一样的策略也被采用到改编 transcriptional,这在体细胞介绍原子转移和单性生殖,建议这当模特儿在早胚胎开始期间对 transcriptional reprogramming 的所有形式普遍适用。从染色质的 CF 的排水量也为抄写沉默的现象提供解释在期间对 zygotic 转变母亲。 | Feng Sun Haiyan Fang Ruizhen Li Tianlong Gao Junke Zheng Xuejin Chen Wenqin Ying Hui Z Sheng | 2007 | Cell Research2007，17，2： | 5 |
| 3 | Derivation of Putative Porcine Embryonic Germ Cells and Analysis of Their Multi-Lineage Differentiation Potential显示文摘Embryonic germ(EG)cells are cultured pluripotent stem cells derived from the primordial germ cells(PGCs)that migrate from the dorsal mesentery of the hindgut to the developing genital ridge.In this study,the morphology of the porcine genital ridge was assessed in embryos harvested on days 22-30 of pregnancy.PGCs from embryos at these stages were cultured to obtain porcine EG cell lines,and EG-like cells were derived from PGCs from embryos harvested on days 24-28 of pregnancy.The EG-like cells expressed Oct4,Sox2,Nanog,SSEA-3,SSEA-4 and alkaline phosphatase(AP).These cells were able to form embryoid bodies(EBs)in suspension culture and differentiate into cells representative of the three germ layers as verified by a-fetoprotein(AFP),a-smooth muscle actin(a-SMA),and Nestin expression.Spontaneous differentiation from the porcine EG-like cells of delayed passage in vitro showed that they could differentiate into epithelial-like cells,mesenchymal-like cells and neuron-like cells.In vitro directed differentiation generated osteocytes,adipocytes and a variety of neural lineage cells,as demonstrated by alizarin red staining,oil red O staining,and immunofluorescence for neuronal classⅢb-tubulin(Tuj1),glial fibrillary protein(GFAP)and galactosylceramidase(GALC),respectively.These results indicate that porcine EG-like cells have the potential for multi-lineage differentiation and are useful for basic porcine stem cell research. | Yimei Cong Jing Ma Ruizhen Sun Jianyu Wang Binghua Xue Jiaqiang Wang Bingteng Xie Juan Wang Kui Hu Zhonghua Liu | 2013 | Journal of Genetics and Genomics2013，40，9： | 4 |
| 4 | Ecdysteroids in the adults and eggs of Opogona sacchari (Bojer),an invasive alien pest显示文摘In order to understand the composition and quantitative variation of ecdysteriods in the adults and eggs of Opogona sacchari (Bojer), an invasive alien pest, we analyzed the ecdysteroid composition and titers in the adult and egg of this pest. On day 4 after eclosion, the titer of ecdysteriods in the male adult was 0.080 ng/adult, much lower than 5.978 ng/adult in the female adult. During the development of ovaries, the titer of ecdysteriods was low on the first two days, and high in the late period, with the peak (10.48 ng/ovary) appearing on day 3. During the development of eggs, the titer of ecdysteriods was about 0.010 ng/egg from day 1 to day 3, and then decreased to 0.006 ng/egg on day 4. In both adults and eggs, three main components of ecdysteriods were found by identification of HPLC/RIA. They were 20-hydroxyecdysone, 26-hydroxyecdysone, and an unidentified component. | WANG FangHai, ZHANG GuRen, WEN RuiZhen & HE GuoFeng State Key Laboratory for Biological Control and Institute of Entomology, Sun Yat-sen University, Guangzhou 510275, China | 2008 | Science China(Life Sciences)2008，51，2： | 1 |
| 5 | Wheat male-sterile 2 reduces ROS levels to inhibit anther development by deactivating ROS modulator 1显示文摘Ms2 is an important dominant male-sterile gene in wheat,but the biochemical function of Ms2 and the mechanism by which it causes male sterility remain elusive.Here,we report the molecular basis underlying Ms2-induced male sterility in wheat.We found that activated Ms2 specifically reduces the reactive oxygen species(ROS)signals in anthers and thereby induces termination of wheat anther development at an early stage.Furthermore,our results indicate that Ms2 is localized in mitochondria,where it physically interacts with a wheat homolog of ROS modulator 1(TaRomo1).Romo1 positively regulates the ROS levels in humans but has never been studied in plants.We found that single amino acid substitutions in the Ms2 protein that rescue the ms2 male-sterile phenotype abolish the interaction between Ms2 and TaRomo1.Significantly,Ms2 promotes the transition of TaRomo1 proteins from active monomers to inactive oligomers.Taken together,our findings unravel the molecular basis of Ms2-induced male sterility and reveal a regulatory mechanism in which ROS act as essential signals guiding the anther development program in wheat. | Jie Liu Chuan Xia Huixue Dong Pan Liu Ruizhen Yang Lichao Zhang Xu Liu Jizeng Jia Xiuying Kong Jiaqiang Sun | 2022 | Molecular Plant2022，15，9： | 1 |
| 6 | Study on the Relation between Thermal Stability and Carbonation Rate of Ettringite显示文摘 | RuiZhen Zou Shuqiao Sun Xiantuo Chen | 1995 | Journal of Hebei Institute of Chemical Technology and Light Industry1995，16，4： | 1 |
| 7 | Degradation of curdlan using hydrogen peroxide 显示文摘 | Shengjun Wu Ruizhen Cai Yuying Sun | 2012 | Food Chemistry2012，135，： | 1 |
| 8 | Sox2 is the faithful marker for pluripotency in pig: Evidence from embryonic studies显示文摘 | Shichao Liu Gerelchimeg Bou Ruizhen Sun Shimeng Guo Binghua Xue Renyue Wei Austin J. Cooney Zhonghua Liu | 2015 | Dev. Dyn2015，，4： | 1 |
| 9 | TaBZR1 enhances wheat salt tolerance via promoting ABA biosynthesis and ROS scavenging显示文摘Brassinosteroids(BRs)are vital plant steroid hormones involved in numerous aspects of plant life including growth,development,and responses to various stresses.However,the underlying mechanisms of how BR regulates abiotic stress responses in wheat(Triticum aestivum L.)remain to be elucidated.Here,we find that BR signal core transcription factor BRASSINAZOLE-RESISTANT1(TaBZR1)is significantly up-regulated by salt treatment.Overexpression of Tabzr1-1D(a gain-of-function TaBZR1 mutant protein)improves wheat salt tolerance.Furthermore,we show that TaBZR1 binds directly to the G-box motif in the promoter of ABA biosynthesis gene TaNCED3 to activate its expression and promotes ABA accumulation.Moreover,TaBZR1 associates with the promoters of ROS-scavenging genes TaGPX2 and TaGPX3 to activate their expression.Taken together,our results elucidate that TaBZR1 improves salt-stress tolerance by activating some genes involved in the biosynthesis of ABA and ROS scavenging in wheat,which gives us a new strategy to improve the salt tolerance of wheat. | Ruizhen Yang Ziyi Yang Meng Xing Yexing Jing Yunwei Zhang Kewei Zhang Yun Zhou Huixian Zhao Weihua Qiao Jiaqiang Sun | 2023 | Journal of Genetics and Genomics2023，50，11： | 0 |
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