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| 1 | Pre-Devonian tectonic evolution of the eastern South China Block:Geochronological evidence from detrital zircons显示文摘Using the U-Pb LA-ICP-MS analysis technique we analyzed geochronological features of detrital zircons from Devonian and Ordovician coarse sandstone in southern Jiangxi Province,northern Cathaysia Block.Abundant ancient crustal information was obtained.The 350 groups of U-Pb age center on five ranges:2600-2300 Ma(peak at 2470 Ma),1100-900 Ma(peak at 980 Ma),900-700 Ma(peak at 800 Ma),650-520 Ma(peak at 600 Ma) and 450-400 Ma(peak at 440 Ma).We also found a detrital zircon of ~3.5 Ga.This is the oldest age in northern Cathaysia Block obtained so far.From the analysis we concluded that:(1) the 2600-2300 Ma period,characterized by a global continent-building,records late Neoarchean magmatism that did not occur in the neighboring area of Cathaysia;(2) the marked peak at 1100-900 Ma corresponds with the assembly time of the Neoproterozoic supercontinent,Rodinia,suggesting that the Cathaysia Block was once a part of Rodinia,and numerous euhedral zircons with similar ages likely resulted from the Grenville event;(3) the peak at 900-700 Ma corresponds to the breakup of Rodinia,as evidenced by wide occurrence of Neoproterozoic granite,basic dyke swarms and continental rift-type deposition;(4) the 650-520 Ma period is the typical time of the Pan-African event,but as yet no associated magmatic rock has been reported in this area;and(5) the peak at 450-400 Ma,representing the early Paleozoic orogeny,was recorded in various igneous rocks.Abundant Silurian-Lower Devonian granitic plutons,orthogneisses and their zircon U-Pb dating ages(450-400 Ma) are important evidence of an early Paleozoic orogenic event.Geological data support the interpretation of an Early Paleozoic tectonic heat event in Cathaysia,which was likely to be caused by intracontinental collision. | Lei Xiang LiangShu Shu | 2010 | Science China Earth Sciences2010,53,10: | 26 |
| 2 | Special Section:SARS-CoV-2 Preliminary evidence from a multicenter prospective observational study of the safety and efficacy of chloroquine for the treatment of COVID-19显示文摘Effective therapies are urgently needed for the SARS-CoV-2 pandemic.Chloroquine has been proved to have antiviral effect against coronavirus in vitro.In this study,we aimed to assess the efficacy and safety of chloroquine with different doses in COVID-19.In this multicenter prospective observational study,we enrolled patients older than 18 years old with confirmed SARS-CoV-2 infection excluding critical cases from 12 hospitals in Guangdong and Hubei Provinces.Eligible patients received chloroquinephosphate s00 mg,orally,once(half dose)or twice(full dose)daily.Patients treated with non-chloroquine therapy were included as historical controls.The primary endpoint is the time to undetectable viral RNA.Secondary outcomes include the proportion of patients with undetectable viral RNA by day 10 and 14,hospitalization time,duration of fever,and adverse events.A total of 197 patients completed chloroquine treatment,and 176patients were included as historical controls.The median time to achieve an undetectable viral RNA was shorter in chloroquine than in non-chloroquine(absolute difference in medians-6.0 days;95%CI-6.0 to—4.0).The duration of fever is shorter in chloroquine(geometric mean ratio 0.6;95%CIO.5 to 0.8).No serious adverse events were observed in the chloroquine group.Patients treated with half dose experienced lower rate of adverse events than with full dose.Although randomized trials are needed for further evaluation,this study provides evidence for safety and efficacy of chloroquine in COVID-19 and suggests that chloroquine can be a cost-effective therapy for combating the COVID-19 pandemic. | Mingxing Huang Man Li Fei Xiao Pengfei Pang Jiabi Liang Tiantian Tang Shaoxuan Liu Binghui Chen Jingxian Shu Yingying You Yang Li Meiwen Tang Jianhui Zhou Guanmin Jiang Jingfen Xiang Wenxin Hong Songmei He Zhaoqin Wang Jianhua Feng Changqing Lin Yinong Ye Zhilong Wu Yaocai Li Bei Zhong Ruilin Sun Zhongsi Hong Jing Liu Huili Chen Xiaohua Wang Zhonghe Li Duanqing Pei Lin Tian Jinyu Xia Shanping Jiang Nanshan Zhong Hong Shan | 2020 | National Science Review2020,7,9: | 20 |
| 3 | Mapping of two new brown planthopper resistance genes from wild rice显示文摘A brown planthopper (BPH) resistance line, B5, derived its resistance genes from the wild rice Oryza offici-nalis Wall exwatt, was hybridized with Taichung Native 1, a cultivar highly susceptible to BPH. A mapping population composed of randomly selected 167 F2 individuals was used for determining the BPH resistance genes by the restriction fragment length polymorphism analysis (RFLP). Bulked segregant analysis was conducted to identify RFLP makers linked to the BPH resistance genes in B5. The results indicated that the markers linked to BPH resistance are located at two genomic regions on the long arm of chromosome 3 and the short arm of chromosome 4, respectively. The existence of the two loci was further assessed by the quantitative trait locus (QTL) analysis. We located the two loci at a 3.2 cM interval between G1318 and R1925 on chromosome 3 and a 1.2 cM interval between C820 and S11182 on chromosome 4. Comparison with the BPH genes that have been reported indicated that the BPH resistance genes | WANG Buna HUANG Zhen SHU Lihui REN Xiang LI Xianghua HE Guangcun | 2001 | Chinese Science Bulletin2001,46,13: | 14 |
| 4 | Preliminary study on the production of transgenic mice harboring hepatitis B virus X gene显示文摘INTRODUCTIONDespiteoverwhelmingepidemiologicalevidencelinkingpersistentHepatitisBVirus(HBV)infectionandthedevelopmentofhepato... | ZHU Huan Zhang 1, CHENG Guo Xiang 2, CHEN Jian Qu 2, KUANG Shu Yuan 3, CHENG Yong 2, ZHANG Xin Li 1, Ll Hou Da 2, XU Shao Fu 2, SHI Jing Quan 1, QIAN Geng Sun 3 and GU Jian Ren 3 | 1998 | World Journal of Gastroenterology1998,4,6: | 14 |
| 5 | Simultaneous virus identification and characterization of severe unexplained pneumonia cases using a metagenomics sequencing technique显示文摘Many viruses can cause respiratory diseases in humans.Although great advances have been achieved in methods of diagnosis,it remains challenging to identify pathogens in unexplained pneumonia(UP) cases.In this study,we applied next-generation sequencing(NGS) technology and a metagenomic approach to detect and characterize respiratory viruses in UP cases from Guizhou Province,China.A total of 33 oropharyngeal swabs were obtained from hospitalized UP patients and subjected to NGS.An unbiased metagenomic analysis pipeline identified 13 virus species in 16 samples.Human rhinovirus C was the virus most frequently detected and was identified in seven samples.Human measles virus,adenovirus B 55 and coxsackievirus A10 were also identified.Metagenomic sequencing also provided virus genomic sequences,which enabled genotype characterization and phylogenetic analysis.For cases of multiple infection,metagenomic sequencing afforded information regarding the quantity of each virus in the sample,which could be used to evaluate each viruses' role in the disease.Our study highlights the potential of metagenomic sequencing for pathogen identification in UP cases. | Xiaohui Zou Guangpeng Tang Xiang Zhao Yan Huang Tao Chen Mingyu Lei Wenbing Chen Lei Yang Wenfei Zhu Li Zhuang Jing Yang Zhaomin Feng Dayan Wang Dingming Wang Yuelong Shu | 2017 | Science China(Life Sciences)2017,60,3: | 14 |
| 6 | A new triterpene glycoside from sea cucumber Holothuria leucospilota显示文摘A new triterpene glycoside, leucospilotaside A, along with a known saponin, isolated from sea cucumber Holothuria leucospilota, and its structure was elucidated as 3β-O-[4-O-sodiumsulfate-β-D-quinovopyranosyl-(1→2)-β-D-xylopyranosyl]-holosta-22-ketone-9-en-17α,25α-diol (1) by extensive spectroscopic analysis and chemical methods. Leucospilotaside A (1) has a ketone carbonyl group (22) in the aglycon side chain. | Hua Han Yang Hua Yi Ling Li Xiao Hua Wang Bao Shu Liu Peng Sun Min Xiang Pan | 2007 | Chinese Chemical Letters2007,18,2: | 13 |
| 7 | THE EFFECTS OF RADIATION STRESS ON WAVE HEIGHTS AND SEA LEVEL IN THE INTERACTION OF COUPLED WAVE-TIDE-SURGE IN THE COASTAL AREA显示文摘Based on coastal high resolution (2′×2′) coupled wave tide surge interaction numerical model, the effects of radiation stress on wave heights and sea level in the coastal area of Huanghe Delta were studied. By comparisons of simulated and measured wave heights and sea level for two mediately strong weather cases, it is demonstrated that the results simulated by coupled wave tide surge model are closer to the measured and particularly in excellent agreement in the extreme values of the wave heights and set up. This study shows that the radiation stress can increase the wave heights maximally to 67cm and sea level to 40cm. It is also found that there are areas of over 50cm wave height increase and an area of over 20cm sea level increase in the Huanghe Delta coastal area, and this find may be very important in engineering. For this reason, it is suggested that in the practical engineering application, the coupled wave tide surge interaction numerical model should be prefered. | Lin Xiang, Yin Bao shu, Hou Yi jun, Su Jing zhi, Cheng Ming hua Institute of Oceanology, Chinese Academy of Sciences, Qingdao, 266071, China | 2003 | Journal of Hydrodynamics2003,15,1: | 12 |
| 8 | Insight-HXMT observations of the first binary neutron star merger GW170817显示文摘Finding the electromagnetic(EM) counterpart of binary compact star merger, especially the binary neutron star(BNS) merger,is critically important for gravitational wave(GW) astronomy, cosmology and fundamental physics. On Aug. 17, 2017,Advanced LIGO and Fermi/GBM independently triggered the first BNS merger, GW170817, and its high energy EM counterpart,GRB 170817 A, respectively, resulting in a global observation campaign covering gamma-ray, X-ray, UV, optical, IR, radio as well as neutrinos. The High Energy X-ray telescope(HE) onboard Insight-HXMT(Hard X-ray Modulation Telescope) is the unique high-energy gamma-ray telescope that monitored the entire GW localization area and especially the optical counterpart(SSS17 a/AT2017 gfo) with very large collection area(~1000 cm^2) and microsecond time resolution in 0.2-5 MeV. In addition,Insight-HXMT quickly implemented a Target of Opportunity(ToO) observation to scan the GW localization area for potential X-ray emission from the GW source. Although Insight-HXMT did not detect any significant high energy(0.2-5 MeV) radiation from GW170817, its observation helped to confirm the unexpected weak and soft nature of GRB 170817 A. Meanwhile,Insight-HXMT/HE provides one of the most stringent constraints(~10^(-7) to 10^(-6) erg/cm^2/s) for both GRB170817 A and any other possible precursor or extended emissions in 0.2-5 MeV, which help us to better understand the properties of EM radiation from this BNS merger. Therefore the observation of Insight-HXMT constitutes an important chapter in the full context of multi-wavelength and multi-messenger observation of this historical GW event. | TiPei Li ShaoLin Xiong ShuangNan Zhang FangJun Lu LiMing Song XueLei Cao Zhi Chang Gang Chen Li Chen TianXiang Chen Yong Chen YiBao Chen YuPeng Chen Wei Cui WeiWei Cui JingKang Deng YongWei Dong YuanYuan Du MinXue Fu GuanHua Gao He Gao Min Gao MingYu Ge YuDong Gu Ju Guan ChengCheng Guo DaWei Han Wei Hu Yue Huang Jia Huo ShuMei Jia LuHua Jiang WeiChun Jiang Jing Jin YongJie Jin Bing Li ChengKui Li Gang Li MaoShun Li Wei Li Xian Li XiaoBo Li XuFang Li YanGuo Li ZiJian Li ZhengWei Li XiaoHua Liang JinYuan Liao CongZhan Liu GuoQing Liu HongWei Liu ShaoZhen Liu XiaoJing Liu Yuan Liu YiNong Liu Bo Lu XueFeng Lu Tao Luo Xiang Ma Bin Meng Yi Nang JianYin Nie Ge OU JinLu Qu Na Sai Liang Sun Yin Tan Lian Tao WenHui Tao YouLi Tuo GuoFeng Wang HuanYu Wang Juan Wang WenShuai Wang YuSa Wang XiangYang Wen BoBing WU Mei Wu GuangCheng Xiao He Xu YuPeng Xu LinLi Yan JiaWei Yang Sheng Yang YanJi Yang AiMei Zhang ChunLei Zhang ChengMo Zhang Fan Zhang HongMei Zhang Juan Zhang Qiang Zhang Shu Zhang Tong Zhang Wei Zhang WanChang Zhang WenZhao Zhang Yi Zhang Yue Zhang YiFei Zhang YongJie Zhang Zhao Zhang ZiLiang Zhang HaiSheng Zhao JianLing Zhao XiaoFan Zhao ShiJie Zheng Yue Zhu YuXuan Zhu ChangLin Zou | 2018 | Science China(Physics,Mechanics & Astronomy)2018,61,3: | 12 |
| 9 | Construction of HBV-specific ribozyme and its recombinant with HDV and their cleavage activity in vitro显示文摘AIM To construct the recombinant of HDVcDNA and HBV-specific ribozyme gene byrecombinant PCR in order to use HDV as atransporting vector carrying HBV-specificribozyme into liver cells for inhibiting thereplication of HBV.METHODS We separately cloned the ribozyme(RZ)gene and recombinant DVRZ(comprisingHDV cDNA and HBV-specific ribozyme gene)intothe downstream of T7 promoter of pTAdv-Tvector and studied the in vitro cleavage activityof their transcripts(rRZ,rDVRZ)on target RNA(rBVCF)from in vitro transcription of HBV Cgene fragment(BVCF).RESULTS Both the simple(rRZ)and therecombinant ribozyme rDVRZ could efficientlycatalyze the cleavage of target RNA(rBVCF)under different temperatures(37℃,42℃ and55℃)and Mg2+concentrations(10 mmol/L,15 mmol/L and 20 mmol/L)and their catalyticactivity tended to increase as the temperaturewas rising.But the activity of rRZ was evidentlyhigher than that of rDVRZ.CONCLUSION The recombinant of HDV cDNAand ribozyme gene had the potential of beingfurther explored and used in gene therapy of HBVinfection. | Shu Juan Wen Kai Jun Xiang Zhen Hua Huang Rong Zhou Xue Zhong Qi | 2000 | World Journal of Gastroenterology2000,6,3: | 10 |
| 10 | Forms and Balance of Nitrogen and Phosphorus in Cage Culture Waters in Guangdong Province, China显示文摘In order to approach the characteristics of nitrogen and phosphorus pollution caused by cage culture and the balance of nitrogen and phosphorus during the process of cage culture, a monitoring was conducted in Daya Bay of Guangdong Province, China from April 2002 to Jane 2003. The results show that the concentrations of total nitrogen (TN) in the waters at the sites with five and ten years of cage culture history are 1.8 and 2.3 times of that at control site respectively. Ammonium (NH3-N) is the main form of nitrogen in spring while nitrate ( NO3 -) in winter. The concentrations of TN, total dissolved nitrogen (TDN) and dissolved organic nitrogen (DON) are highest in autumn. The concentration of phosphorus increases with the increasing of the culturing time, among which phosphate ( PO 34-) increases most obviously. The concentrations of total phosphorus (TP) and total dissolved phosphorus (TDP) are highest in autumn. The nitrogen and phosphorus are accumulated significantly in the sediment of cage culture area. The model of N balance in the cage culture area: bait (70.62%) + fry (0.28%) + input by tide (14.8%) + release from sediment (14.3%) = harvest of adult fish (12.07%) + deposition into sediment (28.75%) + output by tide (56.18%) + others (3.00%). The model of P balance: bait (83.11%) + fry (0.17%) + input by tide (12.23%) + release from sediment (4.49%) = harvest of adult fish (8.43%) + deposition into sediment (48.59%) + output by tide (41.94%) + others (1.04%). In one fish growth year, the contents of nitrogen and phosphorus in harvest of adult fish are only 17.0% and 10.1% of the contents of nitrogen and phosphorus in fish bait and fry, wherein 83% of nitrogen and more than 89% of phosphorus in fish bait became marine pollutants. | WEN Yanmao WEI Xiange SHU Tingfei ZHOU Jingfeng YU Guanghui LI Feng HUANG Yanyun | 2007 | Chinese Geographical Science2007,17,4: | 9 |
| 11 | 基于GPC和FTIR的再生混合料新旧沥青融合程度研究显示文摘伴随着沥青路面回收料(RAP)在沥青路面修筑和维护中的逐步推广应用,有关RAP对再生路面结构及其力学性能的影响已有了大量的研究,但对RAP旧沥青和新沥青的融合问题还尚不清楚。工程应用中通常假定RAP旧沥青与新沥青发生了完全融合。但如果两者没有完全融合,路面的使用寿命将小于预期水平。该文中,假定再生沥青混合料中集料表面各沥青层可独立完全地分离出来,在此前提下,研究中对再生沥青混合料进行了分层萃取,并利用凝胶渗透色谱(GPC)和傅立叶转换红外光谱(FTIR)对分层萃取出的各层沥青进行定量检测,经对比分析后确定RAP旧沥青和新沥青的融合程度。研究结果表明:再生沥青混合料中RAP表面各层旧沥青与新沥青均发生了一定程度的融合。 | 张德鹏(编译) 徐金枝(编译) 郝培文(编译) benjamin f.bowers baoshan huang xiang shu brad c.miller | 2016 | 中外公路2016,36,6: | 8 |
| 12 | Impacts of different drying strategies on drying characteristics,the retention of bio-active ingredient and colour changes of dried Roselle显示文摘The drying kinetics of Roselle(Hibiscus sabdariffa L) of variety Terengganu(UMKL-1) and the quality attribution of Roselle were studied. The experiments were conducted using four different drying methods, including solar greenhouse drying(SD), solar greenhouse with intermittent heat pump drying(SIHP), hot air drying(HA) and heat pump drying(HP). Among the four drying methods, HP achieved the highest drying rate at a range from0.054 g H_2 O·(g DM)^(-1) ·min^(-1) to 0.212 g H_2 O·(g DM)^(-1)·min^(-1) while SD had the lowest drying rate, measured at 0.042 g H_2 O·(g DM)^(-1)·min^(-1).The analysis on colour kinetics revealed that there is no significant colour loss(p > 0.05) observed from HP's dried Roselle. Greater amount of flavonoid compounds i.e. protocatechuic acid was found in SD and SIHP dried finished product whereas HP's dried Roselle contains higher percentage of catechin as compared to other drying methods. | Thing Chai Tham Mei Xiang Ng Shu Hui Gan Lee Suan Chua Ramlan Aziz Luqman Chuah Abdullah Sze Pheng Ong Nyuk Ling Chin Chung Lim Law | 2018 | Chinese Journal of Chemical Engineering2018,26,2: | 7 |
| 13 | Population attributable risks of cigarette smoking for deaths of all causes, all cancers and other chronic diseases among adults aged 40-74 years in urban Shanghai, China显示文摘Objective: To evaluate the population attributable risks(PARs) between cigarette smoking and deaths of all causes, all cancers, lung cancer and other chronic diseases in urban Shanghai.Methods: In total, 61,480 men aged 40-74 years from 2002 to 2006 and 74,941 women aged 40-70 years from 1997 to 2000 were recruited to undergo baseline surveys in urban Shanghai, with response rates of 74.0% and 92.3%, respectively. A Cox proportional hazards regression model was used to estimate relative risks(RRs) and 95% confidence intervals(95% CIs) of deaths associated with cigarette smoking. PARs and 95% CIs for deaths were estimated from smoking exposure rates and the estimated RRs.Results: Cigarette smoking was responsible for 23.9%(95% CI: 19.4-28.3%) and 2.4%(95% CI: 1.6-3.2%) of all deaths in men and women, respectively, in our study population. Respiratory disease had the highest PAR in men [37.5%(95% CI: 21.5-51.6%)], followed by cancer [31.3%(95% CI: 24.6-37.7%)] and cardiovascular disease(CVD) [24.1%(95% CI: 16.7-31.2%)]. While the top three PARs were 12.7%(95% CI: 6.1-19.3%), 4.0%(95% CI: 2.4-5.6%), and 1.1%(95% CI: 0.0-2.3%), for respiratory disease, CVD, and cancer, respectively in women. For deaths of lung cancer, the PAR of smoking was 68.4%(95% CI: 58.2-76.5%) in men.Conclusions: In urban Shanghai, 23.9% and 2.4% of all deaths in men and women could have been prevented if no people had smoked in the area. Effective control programs against cigarette smoking should be strongly advocated to reduce the increasing smoking-related death burden. | Ying-Ying Wang Wei Zhang Hong-Lan Li Jing Gao Yu-Ting Tan Yu-Tang Gao Xiao-Ou Shu Wei Zheng Yong-Bing Xiang | 2015 | Chinese Journal of Cancer Research2015,27,1: | 6 |
| 14 | Surveillance on the Immune Effectiveness of Quadrivalent and Trivalent Split Influenza Vaccines—Shenzhen City and Changzhou City,China,2018–2019显示文摘Summary What is already known about this topic?Vaccinations are the most effective way to prevent influenza virus infections and severe outcomes.Influenza vaccine effectiveness can vary by seasons.What is added by this report?This report monitors the antibody level among the population over time after administration of the quadrivalent or trivalent split influenza vaccine.What are the implications for public health practice?Real-time monitoring of serum antibody changes after vaccination provides important data for the development of reasonable and effective strategies for influenza prevention and control. | Liumei Shu Jie Zhang Xiang Huo Cong Chen Shisong Fang Kexin Zong Yuanyuan Guo Yingze Zhao Jun Zhang Changjun Bao Junjie Xia Fengcai Zhu Dayan Wang Guizhen Wu George F.Gao William J.Liu | 2020 | China CDC weekly2020,2,21: | 5 |
| 15 | Vertical Distribution Characteristics of PM2.5 Observed by a Mobile Vehicle Lidar in Tianjin, China in 2016显示文摘We present mobile vehicle lidar observations in Tianjin, China during the spring, summer, and winter of 2016. Mobile observations were carried out along the city border road of Tianjin to obtain the vertical distribution characteristics of PM_(2.5). Hygroscopic growth was not considered since relative humidity was less than 60% during the observation experiments. PM_(2.5) profile was obtained with the linear regression equation between the particle extinction coefficient and PM_(2.5) mass concentration. In spring, the vertical distribution of PM_(2.5) exhibited a hierarchical structure. In addition to a layer of particles that gathered near the ground, a portion of particles floated at 0.6–2.5-km height. In summer and winter, the fine particles basically gathered below 1 km near the ground. In spring and summer, the concentration of fine particles in the south was higher than that in the north because of the influence of south wind. In winter, the distribution of fine particles was opposite to that measured during spring and summer. High concentrations of PM_(2.5) were observed in the rural areas of North Tianjin with a maximum of 350 μg m–3 on 13 December2016. It is shown that industrial and ship emissions in spring and summer and coal combustion in winter were the major sources of fine particles that polluted Tianjin. The results provide insights into the mechanisms of haze formation and the effects of meteorological conditions during haze–fog pollution episodes in the Tianjin area. | Lihui LYU Yunsheng DONG Tianshu ZHANG Cheng LIU Wenqing LIU Zhouqing XIE Yan XIANG Yi ZHANG Zhenyi CHEN Guangqiang FAN Leibo ZHANG Yang LIU Yuchen SHI Xiaowen SHU | 2018 | Journal of Meteorological Research2018,32,1: | 5 |
| 16 | Three New Xanthones from Polygala crotalarioides显示文摘Three new xanthones, 3, 6-dihydroxy-1, 2, 7-trimethoxyxanthone 1, 1, 3, 6-trihydroxy-2, 7, 8-trimethoxyxanthone 2, and 3, 6-dihydroxy-1, 2, 7, 8-tetramethoxyxanthone 3, were isolated from the roots of Polygala crotalarioides. Their structures were elucidated by spectral and chemical methods. | Yan HUA Chang Xiang CHEN Yu Qing LIU Shu Kun CHEN Jun ZHOU | 2006 | Chinese Chemical Letters2006,17,6: | 5 |
| 17 | SARS-CoV-2 Omicron variant:recent progress and future perspectives显示文摘Since the outbreak of the coronavirus disease 2019(COVID-19)pandemic,there have been a few variants of the severe acute respiratory syndrome coronavirus 2(SARS-CoV-2),one of which is the Omicron variant(B.1.1.529).The Omicron variant is the most mutated SARS-CoV-2 variant,and its high transmissibility and immune evasion ability have raised global concerns.Owing to its enhanced transmissibility,Omicron has rapidly replaced Delta as the dominant variant in several regions.However,recent studies have shown that the Omicron variant exhibits reduced pathogenicity due to altered cell tropism.In addition. | Yao Fan Xiang Li Lei Zhang Shu Wan Long Zhang Fangfang Zhou | 2022 | Signal Transduction and Targeted Therapy2022,7,5: | 4 |
| 18 | Plasmon Assisted Highly Efficient Visible Light Catalytic CO_(2) Reduction Over the Noble Metal Decorated Sr-Incorporated g-C_(3)N_(4)显示文摘The photocatalytic performance of g-C_(3)N_(4) for CO_(2) conversion is still inadequate by several shortfalls including the instability,insu cient solar light absorption and rapid charge carrier's recombination rate. To solve these problems,herein,noble metals(Pt and Au)decorated Sr-incorporated g-C_(3)N_(4) photocatalysts are fabricated via the simple calcination and photo-deposition methods. The Sr-incorporation remarkably reduced the g-C_(3)N_(4) band gap from 2.7 to 2.54 eV,as evidenced by the UV–visible absorption spectra and the density functional theory results. The CO_(2) conversion performance of the catalysts was evaluated under visible light irradiation. The Pt/0.15 Sr-CN sample produced 48.55 and 74.54 μmol h-1 g-1 of CH_(4) and CO,respectively.These amounts are far greater than that produced by the Au/0.15 Sr-CN,0.15 Sr-CN,and CN samples. A high quantum e ciency of 2.92% is predicted for the Pt/0.15 Sr-CN sample. Further,the stability of the photocatalyst is confirmed via the photocatalytic recyclable test. The improved CO_(2) conversion performance of the catalyst is accredited to the promoted light absorption and remarkably enhanced charge separation via the Sr-incorporated mid gap states and the localized surface plasmon resonance e ect induced by noble metal nanoparticles.This work will provide a new approach for promoting the catalytic e ciency of g-C_(3)N_(4) for e cient solar fuel production. | Muhammad Humayun Habib Ullah Lang Shu Xiang Ao Asif Ali Tahir Chungdong Wang Wei Luo | 2021 | Nano-Micro Letters2021,13,12: | 4 |
| 19 | Crucial control on magmatic-hydrothermal Sn deposit in the Tengchong block,SW China:Evidence from magma differentiation and zircon geochemistry显示文摘Magmatic-hydrothermal Sn deposits are commonly associated with high silica magmas,but why most global high silica granites do not bear economic Sn ore grades remains unclear.Two crucial factors controlling magmatic-hydrothermal Sn mineralization,including advanced fractionation and depressurization-induced rapid cooling,were revealed in the case study of the Guyong granitic pluton linked with the Xiaolonghe Sn deposit,in the Tengchong block,SW China.The Guyong granitic pluton comprises three petrological facies:less evolved biotite syenogranite,evolved alkali granite and leucogranite,and highly evolved facies(the protolith of greisenized granite).Similar crystallization ages(~77 Ma)and gradual contact between different petrological facies indicate the Guyong granitic pluton records a continuous fractionation process.Monte Carlo-revised Rayleigh fractionation model suggests the fractionation degree of the Guyong pluton is markedly high(>87 wt.%)that can only be achieved by a high initial water(≥4 wt.%)content in the parent granitic magma revealed by rhyolite-MELTS calculation.Advanced degree fractionation causes the first Sn enrichment but it also significantly increases the viscosity of evolved magmas,suppressing the exsolution and transport of hydrothermal fluids.Hence,it must be compensated by the second critical factor:depressurization-induced rapid cooling,reflected by the occurrence of highly metamict zircons in the greisenized granite.The highly metamict feature,indicated by the large full width at half maximum(FWHM)values of zirconν3(SiO_(4)) peak(>19.5 cm^(-1)),suggests these zircons do not experience thermal annealing but rapidly ascend into a shallow cooling environment.Depressurization-induced rapid cooling facilitates exsolution and transport of hydrothermal fluids,interacting with wall rocks and resulting in Sn mineralization. | Qiwei Zhang Qingfei Wang Gongjian Li Xiang Sun Qihai Shu Jun Deng | 2022 | Geoscience Frontiers2022,13,4: | 4 |
| 20 | Wheat breeding history reveals synergistic selection of pleiotropic genomic sites for plant architecture and grain yield显示文摘Diversity surveys of crop germplasm are important for gaining insights into the genomic basis for plant architecture and grain yield improvement,which is still poorly understood in wheat.In this study,we exome sequenced 287 wheat accessions that were collected in the past 100 years.Population genetics analysis identified that 6.7%of the wheat genome falls within the selective sweeps between landraces and cultivars,which harbors the genes known for yield improvement.These regions were asymmetrically distributed on the A and B subgenomes with regulatory genes being favorably selected.Genome-wide association study(GWAS)identified genomic loci associated with traits for yield potential,and two underlying genes,TaARF12 encoding an auxin response factor and TaDEP1 encoding the G-proteinγ-subunit,were located and characterized to pleiotropically regulate both plant height and grain weight.Elite single-nucleotide haplotypes with increased allele frequency in cultivars relative to the landraces were identified and found to have accumulated over the course of breeding.Interestingly,we found that TaARF12 and TaDEP1 function in epistasis with the classical plant height Rht-1 locus,leading to propose a“Green Revolution”-based working model for historical wheat breeding.Collectively,our study identifies selection signatures that fine-tune the gibberellin pathway during modern wheat breeding and provides a wealth of genomic diversity resources for the wheat research community. | Aili Li Chenyang Hao Zhenyu Wang Shuaifeng Geng Meiling Jia Fang Wang Xiang Han Xingchen Kong Lingjie Yin Shu Tao Zhongyin Deng Ruyi Liao Guoliang Sun Ke Wang Xingguo Ye Chengzhi Jiao Hongfeng Lu Yun Zhou Dengcai Liu Xiangdong Fu Xueyong Zhang Long Mao | 2022 | Molecular Plant2022,15,3: | 4 |