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| 1 | Production of bioactive ginsenoside compound K in metabolically engineered yeast显示文摘 | Xing Yan Yun Fan Wei Wei Pingping Wang Qunfang Liu Yongjun Wei Lei Zhang Guoping Zhao Jianmin Yue Zhihua Zhou | 2014 | Cell Research2014,24,6: | 81 |
| 2 | Characterization of Panax ginseng UDP- Glycosyltransferases Catalyzing Protopanaxatriol and Biosyntheses of Bioactive Ginsenosides F1 and Rhl in Metabolically Engineered Yeasts显示文摘人参皂甙,在人参(人参属人参) 的主要 pharmacologically 活跃的自然混合物,主要是 protopanaxadiol (PPD ) 和 protopanaxatriol (PPT ) 的 glycosylated 产品。uridine diphosphate glycosyltransferase (UGT ) 催化 PPT 生产 PPT 类型人参皂甙,还都没被报导。这里,我们显示出那 UGTPg1,它 regio 明确地被表明了到 glycosylate C20 -- PPD 的 OH,另外明确地 glycosylates C20 -- PPT 到的 OH 生产 bioactive 人参皂甙 F1。我们报导四新奇 UGT 基因从 P.ginseng 孤立的 characterizationof,分享高推出的氨基酸身份(>84%) 与 UGTPg1。我们明确地表明那 UGTPg100 glycosylates C6 -- PPT 的 OH 催化 PPT 生产 bioactive 人参皂甙 Rh1,和 UGTPg101 生产 F1,从 F1 由人参皂甙 Rg1 的产生列在后面。然而, UGTPg102 和 UGTPg103 被发现不在 PPT 上举办可检测的活动。通过结构的建模和指导地点的 mutagenesis,我们识别了可以在决定他们的活动和底层 regio 特性起重要作用的这些 UGT 的几关键氨基酸。而且,我们由介绍遗传上设计的生产 PPT 小径和 UGTPg1 或 UGTPg100 构造了酵母 recombinants 到 biosynthesize F1 和 Rh1。我们的学习经由合成生物学策略在酵母为 bioactive PPT 类型人参皂甙在人参属工厂,和 providesa 声音生产途径揭示 PPT 类型人参皂甙的可能的 biosynthetic 小径。 | Wei Wei Pingping Wang Yongjun Wei Qunfang Liu Chengshuai Yang Guoping Zhao Jianmin Yue Xing Yan Zhihua Zhou | 2015 | Molecular Plant2015,8,9: | 37 |
| 3 | Guidelines on multidisciplinary approaches for the prevention and management of diabetic foot disease(2020 edition)显示文摘In recent years,as living standards have continued to improve,the number of diabetes patients in China,along with the incidence of complications associated with the disease,has been increasing.Among these complications,diabetic foot disease is one of the main causes of disability and death in diabetic patients.Due to the differences in economy,culture,religion and level of medical care available across different regions,preventive and treatment methods and curative results for diabetic foot vary greatly.In multidisciplinary models built around diabetic foot,the timely assessment and diagnosis of wounds and appropriate methods of prevention and treatment with internal and external surgery are key to clinical practice for this pathology.In 2019,under the leadership of the Jiangsu Medical Association and Chinese Diabetes Society,the writing group for the Guidelines on multidisciplinary approaches for the prevention and management of diabetic foot disease(2020 edition)was established with the participation of scholars from the specialist areas of endocrinology,burn injury,vascular surgery,orthopedics,foot and ankle surgery and cardiology.Drawing lessons from diabetic foot guidelines from other countries,this guide analyses clinical practices for diabetic foot,queries the theoretical basis and grades and gives recommendations based on the characteristics of the pathology in China.This paper begins with assessments and diagnoses of diabetic foot,then describes treatments for diabetic foot in detail,and ends with protections for high-risk feet and the prevention of ulcers.This manuscript covers the disciplines of internal medicine,surgical,nursing and rehabilitation and describes a total of 50 recommendations that we hope will provide procedures and protocols for clinicians dealing with diabetic foot. | Aiping Wang Guozhong Lv Xingbo Cheng Xianghua Ma Wei Wang Jianchao Gui JiHu Meng Lu Guoping Chu Jin’an Chen Hao Zhang Yiqiu Jiang Yuedong Chen Wengbo Yang Lin Jiang Houfa Geng Rendong Zheng Yihui Li Wei Feng Boey Johnson Wenjuan Wang Dalong Zhu Yin Hu | 2020 | Burns & Trauma2020,8,1: | 34 |
| 4 | ZIKA virus isolated from mosquitoes:a field and laboratory investigation in China,2016显示文摘A field investigation of arboviruses was conducted in Dejiang, Guizhou Province in the summer of 2016. A total of 8,795 mosquitoes, belonging to four species of three genera, and 1,300 midges were collected. The mosquito samples were identified on site according to their morphology, and the pooled samples were ground and centrifuged in the laboratory. The supernatant was incubated with mosquito tissue culture cells(C6/36) and mammalian cells(BHK-21) for virus isolation. The results indicated that 40%(3,540/8,795) were Anopheles sinensis, 30%(2,700/8,795) were Culex pipiens quinquefasciatus, and 29%(2,530/8,795)were Armigeres subbalbeatus. Furthermore, a total of eight virus isolates were obtained, and genome sequencing revealed two Zika viruses(ZIKVs) isolated from Culex pipiens quinquefasciatus and Armigeres subbalbeatus, respectively; three Japanese encephalitis viruses(JEVs) isolated from Culex pipiens quinquefasciatus; two Banna viruses(BAVs) isolated from Culex pipiens quinquefasciatus and Anopheles sinensis, respectively; and one densovirus(DNV) isolated from Culex pipiens quinquefasciatus.The ZIKVs isolated from the Culex pipiens quinquefasciatus and Armigeres subbalbeatus mosquitoes represent the first ZIKV isolates in China's Mainland. This discovery presents new challenges for the prevention and control of ZIKV in China, and prompts international cooperation on this global issue. | Shihong Fu Song Song Hong Liu Yuanyuan Li Xiaolong Li Xiaoyan Gao Ziqian Xu Guoping Liu Dingming Wang Zhenzao Tian Jingzhu Zhou Ying He Wenwen Lei Huanyu Wang Bin Wang Xiaoqing Lu Guodong Liang | 2017 | Science China(Life Sciences)2017,60,12: | 25 |
| 5 | In vitro differentiation of adipose-derived stem cells and bone marrow-derived stromal stem cells into neuronal-like cells显示文摘Adipose-derived stem cells and bone marrow-derived stromal stem cells were co-cultured with untreated or Aβ1-40-treated PC12 cells, or grown in supernatant derived from untreated or Aβ1-40-treated PC12 cells. Analysis by western blot and quantitative real-time PCR showed that protein levels of Nanog, Oct4, and Sox2, and mRNA levels of miR/125a/3p were decreased, while expression of insulin-like growth factor-2 and neuron specific enolase was increased. In comparison, the generation of neuron specific enolase-positive cells was most successful when adipose-derived stem cells were co-cultured with Aβ1-40-treated PC12 cells. Our results demonstrate that adipose-derived stem cells and bone marrow-derived stromal stem cells exhibit trends of neuronal-like cell differentiation after co-culture with Aβ1-40-treated PC12 cells. This process may relate to a downregulation of miR-125a-3p mRNA expression and increased levels of insulin-like growth factor-2 expression. | Jin Zhou Guoping Tian Jing'e Wang Xuefeng Cong Xingkai Wu Siyang Zhang Li Li Bing Xu Feng Zhu Xuedan Luo Jian Han Fengjie Hu | 2011 | Neural Regeneration Research2011,6,19: | 21 |
| 6 | Matrix metalloproteinases contribute to kidney fibrosis in chronic kidney diseases显示文摘Matrix metalloproteinases(MMPs) are members of the neutral proteinase family. They were previously thought to be anti-fibrotic because of their ability to degrade and remodel of extracellular matrix. However, recent studies have shown that MMPs are implicated in initiation and progression of kidney fibrosis through tubular cell epithelial–mesenchymal transition(EMT) as well as activation of resident fibroblasts, endothelial-mesenchymal transition(Endo MT) and pericyte-myofibroblast transdifferentiation. Interstitial macrophage infiltration has also been shown to correlate with the severity of kidney fibrosis in various chronic kidney diseases. MMPs secreted by macrophages, especially MMP-9, hasbeen shown by us to be profibrotic by induction of tubular cells EMT. EMT is mainly induced by transforming growth factor-β(TGF-β). However, MMP-9 was found by us and others to be up-regulated by TGF-β1 in kidney tubular epithelial cells and secreted by activated macrophages, resulting in EMT and ultimately kidney fibrosis. Therefore, MMP-9 may serve as a potential therapeutic target to prevent kidney fibrosis in chronic kidney disease. This review, by a particular focus on EMT, seeks to provide a comprehensive understanding of MMPs, especially MMP-9, in kidney fibrosis. | Hong Zhao Yanting Dong Xinrui Tian Thian Kui Tan Zhuola Liu Ye Zhao Yun Zhang David CH Harris Guoping Zheng | 2013 | World Journal of Nephrology2013,2,3: | 21 |
| 7 | Distribution of Pacific-origin water in the region of the Chukchi Plateau in the Arctic Ocean in the summer of 2003显示文摘The upper ocean thermohaline structures in the region of the Chukchi Plateau are analyzed with the hydrographic data collected by the Chinese National Arctic Research Expedition in the summer of 2003. Three types of the Pacific-origin water were found in the upper ocean, Alaska Coastal Water (ACW), summer Bering Sea Water (sBSW) and winter Bering Sea Water (wBSW) are indicated by two maximums temperature and one minimum temperature, piling up from the upper to the lower respectively. The extreme warm ACW with a maximum temperature of 1.62 ℃ was found in the southwestern Canada Basin at a depth of about 50 m. A pathway of the ACW into the basin from its adjacent area did not existed in the expedition period. So it is speculated that the extreme warm feature of the ACW was formed locally in 2003. The relative weak ACW occurred to the east of the Chukchi Cap and in the southern Chukchi Abyssal Plain. The latter one might originate from a warm downwelling that existed in a small canyon at the shelf break of the Chukchi Sea. The sBSW without the ACW was found only at the southwestern flank of the Chukchi Cap. The ACW and the sBSW were not found in the northernmost station at 81°N,which indicates the north boundary of the upper Pacific-origin water in the Canada Basin. The wBSW, which existed in all deep stations,was exactly uniform at temperature. The difference of the core potential temperature of the wBSW in the deep regions is only 0.08 ℃. | SHI Jiuxin CAO Yong ZHAO Jinping GAO Guoping JIAO Yutian LI Shujiang | 2005 | Acta Oceanologica Sinica2005,24,6: | 15 |
| 8 | Recombinant CC16 protein inhibits the production of pro-inflammatory cytokines via NF-KB and p38 MAPK pathways in LPS-activated RAW264,7 macrophages显示文摘积累的证据显示克莱拉房间 protein-16 (CC16 ) 有反煽动性的功能,尽管深奥分子的小径完全没被阐明。这里,我们评估了效果肿瘤坏死因素 alpha (TNF-) 的表示上的 recombinant 老鼠 CC16 (rCC16 ) , interleukin-6 (IL-6 ) ,和在 lipopolysaccharide (LPS ) 的 IL-8 刺激了老鼠巨噬细胞(RAW264.7 房间) 并且探索了内在的分子的机制。rCC16 在两个禁止了导致 LPS 的 TNF- , IL-6,和 IL-8 表示,这被发现送信人 ribonucleicacid (mRNA ) 水平和蛋白质以一种集中依赖者方式铺平,由即时反向的 transcriptase 聚合酶链反应和连接酶的 immunosorbent 试金示威了。如此的镇压效果被 transcriptional 活动和原子因素(NF ) 的脱氧核糖核酸酸绑定活动的抑制伴随 -B 然而并非使活跃之物蛋白质(AP )-1。西方的污点分析进一步表明 rCC16 禁止了原子 NF-B 和 NF-B 禁止的蛋白质 IB,和 p38 的 cytosolic NF-B, phosphorylation 和减小的减小的增加激活 mitogen 的蛋白质 kinase (MAPK ) 依赖者由在它的 p65 子单元的 Ser276 的 phosphorylation 的 NF-B 激活。而且, rCC16 被发现没另外在c6月N终端 kinase ,c6月,或c-Jun.的原子 translocation 的 phosphorylation 上有效果,TNF-的减小, IL-6 ,并且 IL-8 被颠倒内长的uteroglobin有约束力的蛋白质的水平什么时候被 RNA 干扰在 对待rCC16 、 对待LPS 的 RAW264.7 房间减少。我们的数据建议 rCC16 由在 RAW264.7 房间使 NF-B 和 p38 MAPK 然而并非 AP-1 失去活性压制调停 LPS 的煽动性的调停人 TNF- , IL-6,和 IL-8 生产。 | Min Pang Yangyang Yuan Dong Wang Ting Li Dan Wang Xiaohong Shi Min Guo Chunfang Wang Xinri Zhang Guoping Zheng Baofeng Yu Hailong Wang | 2017 | Acta Biochimica et Biophysica Sinica2017,49,5: | 14 |
| 9 | The bulk transfer coefficients and surface fluxes on the western Tibetan Plateau显示文摘On the gradient observational data of the atmospheric surface layer from September 1997 to December 1998 collected by two sets of Automatic Weather Station (AWS) installed in Gaize and Shiquanhe on the western Tibetan Plateau, mean surface roughness lengths at the two stations above are determined to be 2.7 and 2.9 cm, respectively. The bulk transfer coefficients each day are computed by the profile-flux method, means of the bulk transfer coefficient for momentum (i.e. drag coefficient) in 1998 are 4.83×10-3 and 4.75×103 at the two stations. The surface fluxes of momentum, sensible heat and latent heat each day are further estimated by the bulk formulas, annual mean of these fluxes is 3.4×10-2 and 1.8×102N/m2, 73.1 and 67.2 W/m2, 15.4 and 2.9 W/m2, respectively. The diurnal and seasonal variations are obtained by a composite method and the relationships among the heat transfers between land and atmosphere, plateau monsoon and plateau rain season are also discussed. | Guoping Li Tingyang Duan Yuanfa Gong | 2000 | Chinese Science Bulletin2000,45,13: | 13 |
| 10 | Study and Practice of Wide-Angle Seismic Data Processing显示文摘This paper presents the special processing methods used for wide-angle land seismic data through both theoretical study and model testing. They are different from conventional ones in the following aspects: separation of reflection and refraction waves, long offset NMO and stacking and forward modeling and inversion. These processing techniques have been applied for the first time to land seismic data from Liaohe areas, resulting in greatly improved quality of the deep formation and better imaging of the shallow layer obtained in the volcanic-shielded area. Wide-angle reflection and refraction seismic surveys were carried out in the Liaohe area using the maximum offset of 6500m and with the target around 2000ms. In the processing, we adopted the τ-p transform and the high-order normal moveout correction. | ZhangWenpo GuoPing HuTianyue | 2004 | Applied Geophysics2004,1,1: | 13 |
| 11 | Freeze-thaw Effects on Sorption/Desorption of Dissolved Organic Carbon in Wetland Soils显示文摘The effects of freeze-thaw cycles on sorption/desorption of dissolved organic carbon (DOC) in two wetland soils and one reclaimed wetland soil were investigated. DOC concentrations added were 0-600 mg/L. Laboratory incubations of sorption/desorption of DOC had been carried out at -15℃ for 10 h, and then at +5℃ for 13 h. Soil samples were refrozen and thawed subsequently for 5 cycles. Initial Mass model was used to describe sorption behavior of DOC. The results indicate that freeze-thaw cycles can significantly increase the sorption capacity of DOC and reduce the desorption capacity of DOC in the three soils. The freeze-thaw effects on desorption of DOC in soils increase with the increasing freeze-thaw cycles. The conversion of natural wetlands to soybean farmland can decrease the sorption capacity and increase the desorption capacity of DOC in soils. Global warming and reclamation may increase DOC release, and subsequently increase the loss of carbon and the emission of greenhouse gas. | YU Xiaofei ZHANG Yuxia ZHAO Hongmei LU Xianguo WANG Guoping | 2010 | Chinese Geographical Science2010,20,3: | 12 |
| 12 | Effects of Crude Oil Contamination on Soil Physical and Chemical Properties in Momoge Wetland of China显示文摘Large oilfields are often coincidentally located in major river deltas and wetlands,and potentially damage the structure,function and ecosystem service values of wetlands during oil exploration.In the present study,the effects of crude oil contamination during oil exploration on soil physical and chemical properties were investigated in marshes of the Momoge National Nature Reserve in Jilin Province,China.The concentrations of total petroleum hydrocarbons in the marsh soil near the oil wells are significantly higher than those in the adjacent control marsh.Soil water contents in oil-contaminated marshes are negatively correlated with soil temperature and are significantly lower than those in the control area,especially in fall.Crude oil contamination significantly increases the soil pH up to8.0,and reduces available phosphorus concentrations in the soil.The concentrations of total organic carbon are significantly different among sampling sites.Therefore,crude oil contamination could potentially alkalinize marsh soils,adversely affect soil fertility and physical properties,and cause deterioration of the marshes in the Momoge National Nature Reserve.Phyto-remediation by planting Calamagrostis angustifolia has the potential to simultaneously restore and remediate the petroleum hydrocarbon-contaminated wetlands.Crude oil contamination affects the soil physical and chemical properties,so developing an effective restoration program in the Momoge wetland is neccesary. | WANG Ying FENG Jiang LIN Qianxin LYU Xianguo WANG Xiaoyu WANG Guoping | 2013 | Chinese Geographical Science2013,23,6: | 12 |
| 13 | Data-Based Predictive Control for Networked Nonlinear Systems with Packet Dropout and Measurement Noise显示文摘In this paper, the data-based control problem is investigated for a class of networked nonlinear systems with measurement noise as well as packet dropouts in the feedback and forward channels. The measurement noise and the number of consecutive packet dropouts in both channels are assumed to be random but bounded. A data-based networked predictive control method is proposed, in which a sequence of control increment predictions are calculated in the controller based on the measured output error, and based on the control increment predictions received by the actuator, a proper control action is obtained and applied to the plant according to the real-time number of consecutive packet dropouts at each sampling instant. Then the stability analysis is performed for the networked closedloop system. Finally, the effectiveness of the proposed method is illustrated by a numerical example. | PANG Zhonghua LIU Guoping ZHOU Donghua SUN Dehui | 2017 | Journal of Systems Science & Complexity2017,30,5: | 12 |
| 14 | Distributed modeling of monthly air temperatures over the rugged terrain of the Yellow River Basin显示文摘Our analyses of the monthly mean air temperature of meteorological stations show that altitude,global solar radiation and surface effective radiation have a significant impact on air temperature.We set up a physically-based empirical model for monthly air temperature simulation.Combined the proposed model with the distributed modeling results of global solar radiation and routine meteorological observation data,we also developed a method for the distributed simulation of monthly air temperatures over rugged terrain.Spatial distribution maps are generated at a resolution of 1 km×1 km for the monthly mean,the monthly mean maximum and the monthly mean minimum air temperatures for the Yellow River Basin.Analysis shows that the simulation results reflect to a considerable extent the macro and local distribution characteristics of air temperature.Cross-validation shows that the proposed model displays good stability with mean absolute bias errors of 0.19℃-0.35℃.Tests carried out on local meteorological station data and case year data show that the model has good spatial and temporal simulation capacity.The proposed model solely uses routine meteorological data and can be applied easily to other regions. | ZENG Yan QIU XinFa HE YongJian SHI GuoPing LIU ChangMing | 2009 | Science China Earth Sciences2009,52,5: | 11 |
| 15 | Inhibition of NF-κB Expression and Allergen-induced Airway Inflammation in a Mouse Allergic Asthma Model by Andrographolide显示文摘 | Jing Li Li Luo Xiaoyun Wang Bin Liao Guoping Li | 2009 | Cellular & Molecular Immunology2009,6,5: | 11 |
| 16 | Characteristic Analysis of UHVAC/DC Hybrid Power Grids and Construction of Power System Protection显示文摘Strong DC coupling with weak AC and large-scale renewable energy integration are the two significant characteristics of ultra-high-voltage AC/DC(UHVAC/DC)hybrid power grids in China.Strong coupling between AC and DC grids and the different integration performance of renewable energy sources have profoundly changed the stability characteristics of the power system.The traditional stability control system is inadequate for the stability control of UHVAC/DC power grids.This paper analyzes the requirements for constructing an integrated defense system in a UHVAC/DC hybrid power grid(i.e.power system protection).The definition,connotation,and designing principles of power system protection are put forward.The relationship between the power system protection and the traditional three-defense lines is investigated.The design principles,general hardware structure and main functions of a power system protection are presented.Key problems and technologies are specified in the construction of the power system protection. | Yinbiao Shu Guoping Chen Zhao Yu Jianyun Zhang Chao Wang Chao Zheng | 2017 | CSEE Journal of Power and Energy Systems2017,3,4: | 11 |
| 17 | Effect of dry density on ^(125)I diffusion in GMZ bentonite显示文摘Gaomiaozi(GMZ) bentonite is regarded as the favorable candidate backfilling material for a potential repository in China.It is important to understand the diffusion behavior of 125 I in GMZ bentonite and compare the diffusion behavior in GMZ and other types of bentonite like MX-80,Avonlea,etc.Therefore,through-and out-diffusion experiments were conducted to obtain the effective diffusion coefficient(D e) and distribution coefficient(K d).A computer code named Fitting for diffusion coefficient(FDP) was used for the experimental data processing and theoretical modeling.At the dry density of GMZ bentonite from 1600-2000 kg/m 3,the D e values of 125 I were(2.4-20.4) × 10-12 m 2 /s and K d values were constants.At dry density above 1800 kg/m 3,the diffusion behaviors were almost the same,indicating that the anion exclusion was ineffective.Out-diffusion results showed that the species of 125 I may be changed during the diffusion processing.It was probably caused by some organic matters or reducing substances in GMZ bentonite.Since the main composition of bentonite is montmorillonite,similar diffusion parameters were obtained in GMZ and other types of bentonite.The relationship of D e and accessible porosity(acc) could be described by Archie's law with exponent n = 1.2-2.8 for 125 I diffusion in bentonite,whereas n = 2.0 in GMZ bentonite.Furthermore,bentonite with the dry density of 1800 kg/m 3 was proposed as the backfilling materials used in the construction of high level radioactivity waste repository. | WU Tao LI JinYing DAI Wei XIAO GuoPing SHU FuJun YAO Jun SU YuLan SHI Lei | 2012 | Science China Chemistry2012,55,9: | 11 |
| 18 | Aqueous Chemistry of Typical Geothermal Springs with Deep Faults in Xinyi and Fengshun in Guangdong Province,China显示文摘This paper investigated aqueous chemistry for two geothermal spring groups responsive and sensitive to flow fluctuations induced by earthquakes. Quake monitorings are favored for their being in residential areas with well-preserved natural flow systems in Xinyi City's Xijiang Hot Springs and Fengshun County's Shihu Hot Spring. The hot springs are typical in temperatures and flow rates in southern China's Guangdong Province. Physical and chemical conditions deep down in the heat sources are important constraints on earthquake,fluid flow,reactive solute transport and heat transfer,but remain challenging to address via field observations and numerical experiments. In this paper,we made daily and annual observations on flow rates,temperature,and/or aqueous chemistry. We employed strontium isotopes as tracers for the water sources,equilibrium phase diagram for K-feldspar and albite stability,and Na-K-Mg diagram for heat reservoir temperatures. The abundant sulfite content in Xi- jiang Hot Springs is discussed. Our main finding are that the deep fault springs are characterized by low reduction-oxidation potential at around-200–-150 m V and relatively large daily flow variations. The results provide scientific background features on the field sites regarding earthquake monitoring and predictions and geothermal reservoir. | Guoping Lu Runfang Liu | 2015 | Journal of Earth Science2015,26,1: | 10 |
| 19 | Water mass of the northward throughflow in the Bering Strait in the summer of 2003显示文摘The temperature and salinity data obtained by the Chinese national arctic research expedition (CHINARE2003) are used to study the water structure in the Bering Strait and ambient regions. Four water masses appeared in the research region: the intermediate Bering Sea water mass (IBWM), the Alaska coastal water (ACW), the Anadyr water (AW) and the Bering shelf water (BSW). The AW originates from the IBWM, but the upper layer water has been greatly altered. In the cruise on 28/29 July 2003, there were only the BSW and ACW in a section across the Bering Strait (BS section), but in the September 12/13 cruise, the AW, BSW and ACW flowed parallelly into the Bering Strait. The upper waters of these water masses were all altered due to ice melting, runoff, solar radiation, and wind mixing. The waters in the central and northern parts of Bering Strait stratified by two uniform layers,were expressed as the typical feature of the water masses originating from the pacific. A two-layer structure also dominated the vertical stratification in most part of the Chukchi Sea. An obvious subseasonal variation was observed in the BS section, which caused varying transportation of fresh water, heat, and substance, and produced a long-term and extensive impact on the Arctic Ocean. | ZHAO Jinping SHI Jiuxin GAO Guoping JIAO Yutian ZHANG Hongxin | 2006 | Acta Oceanologica Sinica2006,25,2: | 10 |
| 20 | Characteristics of the short rachillae of rice from archaeological sites dating to 7000 years ago显示文摘The abscission layer formed on a pedicel situated at the basal part of a short rachilla is an important characteristic for discriminating between wild, japonica, and indica rice. The short rachillae of paddy rice grains excavated from the Kuahuqiao, Luojiajiao, and Tianluoshan sites, located in the lower reaches of the Yangtze River and dating to 7000 years old, were observed. The results showed that the short rachillae could be divided into two types: a wild type and japonica type. These results indicated that the rice had been domesticated, but was a primitive cultivated rice that retained some of the characteristics of wild rice. The results also suggested that the rice was changing to resemble japonica type rice. Based on the ratios of wild and japonica types, it was inferred that rice domestication began 10000 years ago. | ZHENG YunFei SUN GuoPing CHEN XuGao | 2007 | Chinese Science Bulletin2007,52,12: | 10 |