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A revised classification of Dryopteridaceae based on plastome phylogenomics and morphological evidence,with the description of a new genus,Pseudarachniodes

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Plant Diversity 2025年第1期47卷 34-52页

作者： Zheng-Yu Zuo Germinal Rouhan shi-yong Dong Hong-mei Liu Xin-Yu Du Li-Bing Zhang Jin-mei Lu Germplasm Bank of Wild Species and Yunnan Key Laboratory of Crop Wild Relatives OmicsKunming Institute of BotanyChinese Academy of SciencesKunming 650201YunnanChina Institut de Systematique EvolutionBiodiversite(ISYEB)Museum National d’Histoire NaturelleCNRSSorbonne UniversiteEcole Pratique des Hautes EtudesUniversite des AntillesCP3957 rue Cuvier 75005ParisFrance Key Laboratory of Plant Resources Conservation and Sustainable Utilization South China Botanical GardenChinese Academy of SciencesGuangzhou 510650GuangdongChina Center for Integrative Conservation&Yunnan Key Laboratory for Conservation of Tropical Rainforests and Asian Elephants Xishuangbanna Tropical Botanical GardenChinese Academy of SciencesMenglun 666303YunnanChina Missouri Botanical Garden 4344 Shaw BlvdSt Louis 63110MOUSA Chengdu Institute of Biology Chinese Academy of SciencesChengdu 610041SichuanChina State Key Laboratory of Plant Diversity and Specialty Crops Kunming Institute of BotanyChinese Academy of SciencesKunming 650201YunnanChina

Dryopteridaceae are the largest fern family and include nearly 20%of extant fern diversity,with 24 currently recognized *** and delineation of genera within this family have varied *** three-subfamily classification of Dryopteridaceae was based primarily on molecular phylogenetic relationships but lacked morphological evidence,and the phylogenetic relationships of the subfamilies and genera of Dryopteridaceae are only partially resolved.A comprehensive and robust phylogeny is urgently *** heterogeneous morphology of the current members of Dryopteridaceae makes the family and its subfamilies difficult to define by single morphological characteristics or even character *** carried out phylogenetic analyses to reconstruct a highly supported phylogeny of *** analyses recovered 24 strongly supported clades grouped into seven major clades of *** morphological characters including habit,rhizome shape,frond morphology,rachis-costae architecture,appendages on stipe base and lamina,and soral arrangement were found to be informative for identifying different major clades and clades in *** on phylogenetic reconstruction and morphological analysis,we presented an updated infra-familial classification of Dryopteridaceae with seven subfamilies and 24 genera including four newly proposed subfamilies(Ctenitidoideae,Lastreopsidoideae,Pleocnemioideae,and Polystichopsidoideae).Morphological character combinations of each subfamily are summarized,and a key is *** genera sensu PPG I are recognized,with Stigmatopetris reclassified into Dryopteridoideae and Arthrobotrya considered a synonym of Teratophyllum.A new genus Pseudarachniodes is *** revised classification will serve as a foundational framework for future investigations on taxonomy,biogeography,and diversification of the most species-rich Dryopteridaceae in ferns.

关键词： Ctenitidoideae Infra-familial Morphological diagnostic characters Phylogenomics Rachis-costae architecture Stigmatopetris

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NTE Treatment Results in Increased Fpn Expression in Hippocampus of Rats Subjected to Cerebral Ischemia

NTE Treatment Results in Increased Fpn Expression in Hippoca...

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第九次全国中西医结合基础理论研究学术研讨会

作者： Jun Liao Xing Xia Guo-zuo Wang yong-mei shi Jin-wen Ge Department of Anatomy Hunan University of Chinese Medicine Campus Network Center Hunan University of Chinese Medicine College of Integrated Medicine Hunan University of Chinese Medicine Hunan Province Key Laboratory of Integrated Medicine for Cardi-Cerebrovascular Disease Hunan University of Chinese Medicine

Objective:To observe the expression of Ferroportin(Fpn) at different time points in rats after focal cerebral ischemia treated with or without Chinese medicine NTE(extract of HuangQi,Chuan Xiong,Di Long,Jiang Can) Methods:The experiment is carried out by two steps:Firstly,SD rats were randomly divided into 2 h,6h,12 h,24 h,72 h groups after operation of Middle cerebral artery occlusion(MCAO),mRNA and protein level of Fpn were detected by immunohistochemistry and RT-PCR at above time points;Secondly,the rats were randomly allotted five groups as following: sham operation group,model group,low dose group of NTE(3 g/kg),medial dose group of NTE (9/kg),large dose group of NTE(27 g/kg).After three days of corresponding therapy by intragastric administration once a day,the regional cerebral ischemia model was reproduced by middle cerebral artery occlusion(MCAO)with suture *** days later,the rats treated by previous *** third day,Neurological behavior of rats were detected by neurobehavioral *** in Hippocampal C region was measured by immunohistochemical method and mRNA of Fpn was detected by RT-PCR. Results:Expression of Fpn in hippocamp C reaches the highest point at 12 h after operation(P<0.05);compared with model group,the large dose group of NTE(27 g/kg) displays a lower Neurological behavior score(P<0.05);and large dose group of NTE showes higher lever expression of Fpn both at mRNA and protein level compared with sham operation group and model group(P<0.05). Conclusion:Disregulation of intracellular iron balance perhaps is the new mechanism of cerebral ischemia injury,the NTE can protect the neuron in Hippocampal C area by adjusting the expression of Fpn to balance the iron after cerebral ischemia.

关键词： Ferroportin(Fpn) Naotaifang extract(NTE) cerebral ischemia

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Inhibition of jarosite heterogeneous crystallization on anglesite via in-situ formation of competitive substrate

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Journal of Environmental Sciences 2025年第3期149卷 394-405页

作者： Jiahui Wu Xu Yan Feiping Zhao yong Ke Haiying Wang Wenchao Zhang Qingwei Wang meiqing shi Liyuan Chai School of Metallurgy and Environment Central South UniversityChangsha 410083China Chinese National Engineering Research Center for Control&Treatment of Heavy Metal Pollution Changsha 410083China State Key Laboratory of Advanced Metallurgy for Non-ferrous Metals Changsha 410083China

Heterogeneous crystallization is a common occurrence during the formation of *** leads to the encapsulation of valuable/hazardous metals within the primary phase,presenting significant challenges for waste treatment andmetal ***,we proposed a novel method involving the in-situ formation of a competitive substrate during the precipitation of jarosite waste,which is an essential process for removing iron in zinc *** observed that the in-situ-formed competitive substrate effectively inhibits the heterogeneous crystallization of jarosite on the surface of anglesite,a lead-rich phase present in the *** a result,the iron content on the anglesite surface decreases from34.8%to 1.65%.The competitive substrate was identified as schwertmannite,characterized by its loose structure and large surface ***,we have elucidated a novel mechanism underlying this inhibition of heterogeneous crystallization,which involves the local supersaturation of jarosite caused by the release of ferric and sulfate ions from the competitive *** local supersaturation promotes the preferential heterogeneous crystallization of jarosite on the competitive ***,during the formation of jarosite,the competitive substrate gradually vanished through a dissolution-recrystallization process following the Ostwald rule,where a metastable phase slowly transitions to a stable *** effectively precluded the introduction of impurities and reduced waste *** goal of this study is to provide fresh insights into the mechanism of heterogeneous crystallization control,and to offer practical crystallization strategies conducive to metal separation and recovery from solid waste in industries.

关键词： Heterogeneous crystallization Jarosite waste Competitive substrate Zinc hydrometallurgy

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CMOS direct conversion X-ray detector coupled with fluorinated liquid

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Nuclear Science and Techniques 2025年第1期36卷 59-68页

作者： shi-Hua Liu Chao-Song Gao Xin Zhang Xiang-Ming Sun Meng Wu Zhi-Hui Han Tong Wan yong-Shuai Ge Key Laboratory of Quark&Lepton Physics(MOE) Central China Normal UniversityWuhan 430079China Guizhou Education University Guiyang 550018China Research Center for Medical Artificial Intelligence Chinese Academy of SciencesShenzhen Institutes of Advanced TechnologyShenzhen 518055China

X-ray detectors show potential applications in medical imaging,materials science,and nuclear *** achieve high detection efficiency and spatial resolution,many conventional semiconductor materials,such as amorphous selenium,cadmium telluride zinc,and perovskites,have been utilized in direct conversion X-ray ***,these semiconductor materials are susceptible to temperature-induced performance degradation,crystallization,delamination,uneven lattice growth,radiation damage,and high dark *** study explores a new approach by coupling an FC40 electronic fluorinated liquid with a specialized high-resolution and high-readout-speed complementary metal-oxide-semiconductor(CMOS)pixel array,specifically the Topmetal II−chip,to fabricate a direct conversion X-ray *** fluorinated liquid FC40(molecular formula:C_(21)F_(48)N_(2))is an electronic medium that is minimally affected by temperature and displays no issues with uniform *** exhibits a low dark current and minimal radiation damage and enables customizable thickness in X-ray *** addresses the limitations inherent in conventional semiconductor-based *** this study,simple X-ray detector imaging tests were conducted,demonstrating the excellent coupling capability between FC40 electronic fluorinated liquid and CMOS chips by the X-ray detector.A spatial resolution of 4.0 lp/mm was measured using a striped line par card,and a relatively clear image of a cockroach was displayed in the digital radiography imaging *** test results indicated the feasibility of fabricating an X-ray detector by combining FC40 electronic fluorinated liquid and CMOS *** to the absence of issues related to chip-material coupling,a high spatial resolution could be achieved by reducing the chip pixel *** method presents a new avenue for studies on novel liquid-based direct conversion X-ray detectors.

关键词： FC40 electronic fluorinated liquid CMOS pixel chip X-ray detector Spatial resolution

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Vertical variations in planar lamination of marine shale: Elucidating hydrodynamic changes during the Ordovician-Silurian transition on the Upper Yangtze Block

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Journal of Palaeogeography 2025年第1期14卷 221-244页

作者： Zhen-Sheng shi Tian-Qi Zhou Hui-Bo Song yong-Bin Niu Sha-Sha Sun Department of Unconventional Oil and Gas Research Institute of Petroleum Exploration and DevelopmentPetroChina College of Resources and Environment Henan Polytechnic University

The hydrodynamics and their evolution on the Upper Yangtze Block during the Ordovician-Silurian transition period remain unclear. The present study is an assessment of how regional and global events may have influenced the hydrodynamic evolution based on a planar lamination investigation of the shales from the Upper Yangtze Block. Analyses of large thin sections and argon-ion polished thin sections using field emission-scanning electron microscopy(FE-SEM) showed that there are four types of planar lamination, namely, silty graded planar lamination(SGPL), silt-clay graded planar lamination(SCGPL), silt-clay interlaminated planar lamination(SCIPL), and paper-like planar lamination(PPL). SGPL is formed by turbidity current with a flow speed less than 15 cm/s. SCGPL is formed by turbidity currents with a flow speed less than 15 cm/s for normal grading type and 15-25 cm/s for alternating grading type. SCIPL has a continuum of sparsely spaced type, closely spaced type, and alternating type, which is formed by bottom current with an increasing flow speed from 15 to 25 cm/s to above 25 cm/s. PPL can be divided into normal grading and composite grading types. The former is formed by vertical settling, while the latter is formed by bottom current with a flow speed of 5-15 cm/s. Vertically, types of planar lamination varied from SGPL to PPL and then SCIPL manifesting the waxing and waning of flow speed with a positive excursion at graptolite biozone Metabolograptus extraordinarius(WF4) and a negative excursion at graptolite biozone Persculptograptus persculptus(LM1). The sudden decrease in flow speed across Linxiang and graptolite biozone Paraorthograptus pacificus(WF3) and the subsequent progressive increase from graptolite biozone Akidograptus ascensus(LM2)to graptolite biozone Demirastrites triangulatus(LM6) and to graptolite biozone Stimulograptus sedgwickii(LM8) during deposition of the Ordovician-Silurian transition succession on the Upper Yangtze Block were linked to th

关键词： Planar lamination Wufeng Formation Longmaxi Formation Ocean circulation Black shale

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面向多媒体协作应用的基于代理的应用层自适应组播

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计算机科学 2004年第12期31卷 26-30页

作者：杨武勇史美林清华大学计算机科学与技术系北京100084

多媒体协作应用在Internet上具有广阔的应用前景,由于Internet的异构性和IP Multicflst目前仍无法在广域范围内得以实现,所以本文提出了一种基于代理的应用层自适应组播框架(Agent-based Application Level Adaptive Multicast,简称Ag-A... 详细信息

多媒体协作应用在Internet上具有广阔的应用前景,由于Internet的异构性和IP Multicflst目前仍无法在广域范围内得以实现,所以本文提出了一种基于代理的应用层自适应组播框架(Agent-based Application Level Adaptive Multicast,简称Ag-ALAM),利用现有的Internet中的单播和局域范围内的IP Multticast,并引入移动Agent技术来实现Internet上的多点数据通信。Ag-ALAM采用了分层结构和应用层缓存方法,在数据传输过程中可以根据数据转换规则和用户意愿进行自适应的数据传输。

关键词：应用层自适应组播代理局域协作缓存 IP 数据通信多媒体

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Medium Modifications of Heavy-Flavor Jet Angularities in High-Energy Nuclear Collisions

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Chinese Physics Letters 2025年第1期42卷 40-47页

作者： Yao Li shi-yong Chen Wei-Xi Kong Sa Wang Ben-Wei Zhang Key Laboratory of Quark&Lepton Physics(MOE)and Institute of Particle Physics Central China Normal UniversityWuhan 430079China Huanggang Normal University Huanggang 438000China College of Science China Three Gorges UniversityYichang 443002China Center for Astronomy and Space Sciences and Institute of Modern Physics China Three Gorges UniversityYichang 443002China

We present the first theoretical study on heavy-flavor jet angularities(λ_(α)^(κ))in Pb+Pb collisions at√SNN=5.02 Te *** initial production of heavy-flavor jets was carried out using the POWHEG+PYTHIA8 *** contrast,the SHELL transport model describes jet evolution in the quark-gluon plasma(QGP).In p+p collisions,we observed narrower angularity distributions for D ^(0)-tagged jets than for inclusive jets,consistent with the ALICE preliminary *** then demonstrate that jet quenching in the QGP slightly widens the angularity distribution of D ^(0)-tagged jets in Pb+Pb collisions relative to that in p+p collisions for a jet transverse momentum of 1020 Ge V/c because of the strong influence of selection ***,by comparing the average angularitiesof the inclusive,D ^(0)-tagged,and B ^(0)-tagged jets with varyingαandκ,we show that the larger the quark mass,the lower the jet’svalues *** a result of the slenderer initial distribution,we predict that compared with inclusive jets,heavy-flavor jets,especially B~0-tagged ones,will suffer stronger modifications ofin Pb+Pb relative to p+p at 10

关键词： angular narrow quark

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Modular assembly of complex C-alkyl glycoside enabled via cooperative NHC and photoredox catalysis

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Science China Chemistry 2025年

作者： Rui-Qiang Jiao Ming Li Xi Chen mei-Ze Xu Tian Ding Xiao-Ping Gong Zhuo-mei Li Xue-Yuan Liu yong-Min Liang State Key Laboratory of Applied Organic Chemistry Lanzhou University College of Chemistry and Chemical Engineering Northwest Normal University

C-Alkyl glycosides are found in natural products and are indispensable in drug development programs,owing to their diverse range of medicinal ***-component reactions involving glycosyl radical addition are well documented and proved efficient for the C-alkyl glycosides ***,multicomponent reactions for the rapid and controllable construction of structurally diversified C-alkyl glycosides in a single step remains a significant challenge due to the issues associated with balancing reactivity,compatibility,and ***,we report an NHC and photoredox co-catalyzed three-component method to access complex and valuable C-alkyl *** protocol exhibits broad substrate scope and excellent chemoand ***,nine types of sugars are compatible with this *** addition,the generality of this catalytic strategy was further highlighted by the potential for scalable production,the feasibility of further modifications of the products and its successful application in the late-stage functionalization of pharmaceutical skeletons.

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Behavioral evaluation of sensorimotor deficits after chronic focal cerebral ischemia,traumatic brain injury,cortical cryoinjury and NMDA-induced brain injury in rats

Behavioral evaluation of sensorimotor deficits after chronic...

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第十二届全国神经精神药理学学术交流会

作者： Zhang yong - mei shi Wen - Zhen Zhao Rui Ye Yi - Lu Zhang Wei - Ping Wei Er - Qing Department of Pharmacology, School of Medicine, Zhejiang University, Hangzhou 310058

Cerebral ischemia or other brain injuries can induce sensorimotor and cognitive dysfunctions in rats. Skilled reaching test and cylinder test are often used to assess long - term physical, cognitive and other behavioral changes in the studies of focal cerebral ischemia. However, little is known about the changes in skilled reaching test and cylinder test after traumatic brain injury, cortical cold injury and NMDA induced brain injury. In the present study, we continuously assessed and com-

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Calibration of the Solar X-ray Detector on-board the Macao Science Satellite-1B for Soft X-ray Detection

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Science China Earth Sciences 2025年第1期68卷 11-26页

作者： Man-Hei NG Xiaoping ZHANG Jianwu CHEN yongqiang shi Fuchang ZUO Wenxi PENG Weichun FU Liansheng LI Pengwei LUO Chi-Long TANG Guozheng ZHANG Zhiwu mei Li WANG Cunhui LI Jiaming OU Yanyan Xu State Key Laboratory of Lunar and Planetary Sciences Macao University of Science and TechnologyMacao999078China Space Optoelectronic Measurement and Perception Laboratory Beijing Institute of Control EngineeringBeijing100190China Institute of High Energy Physics Chinese Academy of SciencesBeijing100049China Science and Technology on Vacuum Technology and Physics Laboratory Lanzhou Institute of PhysicsLanzhou730000China China National Space Administration(CNSA) Macao Center for Space Exploration and ScienceMacao999078China

The Solar X-ray Detector(SXD)on-board the Macao Science Satellite-1B(MSS-1B)was successfully launched via the Chinese Long March-2C rocket on 21 May 2023,and commenced operations in early June of the same *** MSS-1B/Soft X-ray Detection Units(SXDUs)employ two silicon drift detectors(SDDs),providing a wide range of energy spectra spanning from 0.7 to 24 ***,the SXDUs deliver a high-resolution capability of 0.14 keV@5.9 keV and operate with a time cadence of 1 ***,we perform thorough calibrations of the MSS-1B/SXDUs,employing a combination of ground experiments and *** addition,quantitative analysis comparing the flux measurements obtained by the MSS-1B/SXDUs to the data collected by the Geostationary Operational Environmental Satellite(GOES),provides compelling evidence of their ***,the preliminary spectral analysis results showcase the robustness and expected performance of the MSS-1B/SXDUs,unlocking their potential for facilitating the study of dynamic evolution of solar ***,the innovative MSS-1B/Solar X-ray Detector facilitates concurrent observations of solar soft and hard X-rays,thereby making valuable contributions to the advancements in solar research.

关键词： Macao Science Satellite-1B(MSS-1B) Calibration Solar X-Ray Detector Spectrometer Soft X-rays Solar flares Solar abundances

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