检索结果-南通市图书馆

Journal of Materials Science & Technology 2022年第8期103卷 34-41页

作者： Yan-Li Wang Guang-Sheng Wang xiao-juan zhang Chen Gao School of Chemistry Beihang UniversityBeijing 100191China College of Chemistry and Materials Engineering Beijing Technology and Business UniversityBeijing 100048China School of Physical Sciences University of Chinese Academy of SciencesBeijing 100049China

Combining suitable microstructure and dielectric-magnetic synergy effect is conducive to achieve lightweight,broadband,and high-efficiency microwave absorbing materials within low filler ***,porous carbon polyhedrons coupled with bimetallic CoNi alloys were synthesized by using metalorganic frameworks(MOFs)as a template and subsequent pyrolysis *** analysis indicated that the existence of metal Ni element could influence the wave attenuation capacity effectively,resulting in frequency selective wave absorption ***,the pyrolysis temperature was also closely related to wave absorption *** Co_(2)Ni_(1)/C/PVDF composites calcined at 800℃ possessed outstanding wave absorption performance at an ultra-low filler loading of 5 wt%.The minimum reflection loss value achieved-52 dB(10.8 GHz)under the matched thickness of 3 ***,the broadest effective absorption bandwidth(RL<-10 dB)reached 6.2 dB(11.8-18 GHz)for Co/C-800/PVDF composites when the thickness turned into 2 *** remarkable wave attenuation ability was mainly ascribed to magnetic and dielectric loss,impedance matching as well as porous structure effect.

关键词： Porous carbon polyhedrons Bimetallic CoNi alloys Frequency selective wave

A novel male-specific SET domain-containing gene setdm identified from extra microchromosomes of gibel carp males

在线全文

学校读者我要写书评

暂无评论

Science Bulletin 2017年第8期62卷 528-536页

作者： Xi-Yin Li xiao-Li Liu Miao Ding Zhi Li Li Zhou xiao-juan zhang Jian-Fang Gui Stare Key Laboratory of Freshwater Ecology and Biotechnology Institute of Hydrobiology Chinese Academy of Sciences University of Chinese Academy of Sciences Wuhan 4.30072 China

Various genes have been screened on extra chromosomes, but their molecular characterization, expression pattern and biological function are still unclear. Here, we utilized a male-specific sequence of polyploid gibel carp （Carassius gibelio） to identify a novel male-specific SET （Su（var）3-9, Enhancer- of-zeste, Trithorax） domain-containing gene setdm on extra microchromosomes of gibel carp males. And setdm was characterized in molecule and expression aspects, in which its expression was specific to testis, and had relative high transcription during middle/late stages of testis development. Moreover, prominent expression of Setdm in spermatogenic cells was observed in testis through immunofluorescence co-localization analysis. These results suggest that biological function of setdrn might be related to testis development and spermatogenesis of gibel carp. Additionally, the homeologous gene setdmf of setdm, was also characterized, and its expression was gonad-specific, in which its expressed product was detected to mainly distribute in gametogenic cells of testis and ovary, and to have dynamic expression pattern similar to that of setdm. Based on the current results, we propose that the novel male-specific setdm on extra microchromosomes might be functional divergence gene of the gonad-specific setdmf. Therefore, these findings will help us to further understand evolutionary fate and functional role of genes on extra microchromosomes.

关键词： Microchromosomes Snpernumerary chromosomes Sex determination Spermatogenesis Polyploid

3D Ultralight Hollow NiCo Compound@MXene Composites for Tunable and High-E cient Microwave Absorption

在线全文

学校读者我要写书评

暂无评论

Nano-Micro Letters 2021年第12期13卷 322-336页

作者： Hui-Ya Wang xiao-Bo Sun Shu-Hao Yang Pei-Yan Zhao xiao-juan zhang Guang-Sheng Wang Yi Huang School of Chemistry Beihang UniversityBeijing 100191People’s Republic of China College of Chemistry and Materials Engineering Beijing Technology and Business UniversityBeijing 100048People’s Republic of China School of Materials Science and Engineering Nankai UniversityTianjin 300350People’s Republic of China

The 3D hollow hierarchi-cal architectures tend to be designed for inhibiting stack of MXene flakes to obtain satisfactory lightweight,high-e cient and broadband ***,the hollow NiCo compound@MXene networks were prepared by etching the ZIF 67 template and subsequently anchoring the Ti_(3)C_(2)Tx nanosheets through electrostatic *** electromagnetic parameters and microwave absorption property can be distinctly or slightly regulated by adjusting the filler loading and decoration of Ti_(3)C_(2)Tx *** on the synergistic e ectsof multi-components and special well-constructed structure,NiCo layered double hydroxides@Ti_(3)C_(2)Tx(LDHT-9)absorber remarkably achieves unexpected e ective absorption bandwidth(EAB)of 6.72 GHz with a thickness of 2.10 mm,covering the entire *** calcination,transition metal oxide@Ti_(3)C_(2)Tx(TMOT-21)absorber near the percolation threshold possesses minimum reflection loss(RLmin)value of-67.22 dB at 1.70 mm within a filler loading of only 5 wt%.This work enlightens a simple strategy for constructing MXene-based composites to achieve high-e cient microwave absorbents with lightweight and tunable EAB.

关键词： 3D hollow hierarchical architecture Tunable EAB High-performance microwave absorption Ultralight

Usefulness of metagenomic next-generation sequencing in adenovirus 7-induced acute respiratory distress syndrome:A case report

在线全文

学校读者我要写书评

暂无评论

World Journal of Clinical Cases 2021年第21期9卷 6067-6072页

作者： xiao-juan zhang Jia-Yin Zheng Xin Li Ying-Jian Liang Zhi-Dan zhang Department of Intensive Care Unit The First Affiliated Hospital of China Medical UniversityShenyang 110001Liaoning ProvinceChina Department of Infectious Disease The First Affiliated Hospital of China Medical UniversityShenyang 110001Liaoning ProvinceChina

BACKGROUND Direct metagenomic next-generation sequencing(mNGS)of clinical samples is an effective method for the molecular diagnosis of ***,its role in the diagnosis of patients with acute respiratory distress syndrome(ARDS)of an unknown infectious etiology remains *** SUMMARY A 33-year-old man was admitted to our center for a cough and febrile *** after admission,the patient was diagnosed with ARDS and treated in the intensive care ***,chest computed tomography features suggested an *** was performed and the results were indicative of an infection caused by adenovirus type *** patient recovered after receiving appropriate *** mNGS is a promising tool for the diagnosis of ARDS caused by infectious ***,further studies are required to develop strategies for incorporating mNGS into the current diagnostic process for the disease.

关键词： Acute respiratory distress syndrome Metagenomic next-generation sequencing Adenovirus Case report

Signal transducer and activator of transcription is involved in the expression regulation of ecdysteroid-induced insulin-like growth factor-like peptide in the pupal wing disc of silkworm, Bombyx mori

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Insect Science 2020年第6期27卷 1186-1197页

作者： xiao-juan zhang Dong-Dong Li Guan-Feng Xu Ya-Qing Chen Si-Chun Zheng Guangdong Provincial Key Laboratory of Insect Developmental Biology and Applied Technology Institute of Insect Science and TechnologySchool of Life SciencesSouth China Normal UniversityGuangzhouChina Guangzhou Key Laboratory of Insect Development Regulation and Applied Research Institute of Insect Science and TechnologySchool of Life SciencesSouth China Normal UniversityGuangzhouChina

In insects,20-hydroxyecdysone(20E)and insulin-like growth factor-like peptides(IGFLPs)regulate the development o f imaginal ***,how IGFLPs are up-regulated to impact the development of the pupal wing disc is still *** this study,we investigated the expression regulation of IGFLP in the pupal wing disc of silkworm,Bombyx *** confirmed that *** IGFLP(BmIGFLP)was mainly expressed in the pupal wing disc and the expression of BmIGFLP could be significantly induced by *** analysis of BmIGFLP promoter sequence revealed three m-regulation elements(CREs)of signal transducer and activator of transcription(STAT),which is a key component in the Janus-activated kinase/STAT *** activity assays showed that two CREs enhanced the transcriptional activity o f *** mobility shift and chromatin immunoprecipitation assays demonstrated that BmSTAT proteins in the nuclear extracts o f *** pupal wing discs and BmN cells could only bind to the STAT CRE3,indicating that STAT CRE3 activated by BmSTAT enhances BmIGFLP expression at pupal *** 20E could not enhance the expression of BmSTAT,20E enhanced the nucleus translocation o f BmSTAT to bind with the STAT CRE3 in the BmIGFLP *** increase of transcriptional activity of the STAT CRE3 by overexpression of BmSTAT and addition o f 20E in BmN cells confirmed this *** together,all data indicate that BmSTAT is one o f the transcription factors activating 20E-induced BmIGFLP expression in the pupal wing disc.

关键词： Bombyx mori expression regulation IGFLP 20-hydroxyecdysone STAT

Upregulation of the PPAR signaling pathway and accumulation of lipids are related to the morphological and structural transformation of the dragon-eye goldfish eye

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Science China(Life Sciences) 2021年第7期64卷 1031-1049页

作者： Peng Yu Yang Wang Wen-Tao Yang Zhi Li xiao-juan zhang Li Zhou Jian-Fang Gui State Key Laboratory of Freshwater Ecology and Biotechnology Institute of Hydrobiologythe Innovative Academy of Seed DesignChinese Academy of SciencesWuhan 430072China University of Chinese Academy of Sciences Beijing 100049China

Goldfish comprise around 300 different strains with drastically altered and aesthetical morphologies making them suitable models for evolutionary developmental *** dragon-eye strain is characterized by protruding eyes(analogous to those of Chinese dragons).Although the strain has been selected for about 400 years,the mechanism of its eye development remains *** this study,a stable dragon-eye goldfish strain with a clear genetic background was rapidly established and *** found that upregulation of the PPAR signaling pathway accompanied by an increase in lipid accumulation might trigger the morphological and structural transformation of the eye in dragon-eye *** the developmental stage of proptosis(eye protrusion),downregulation of the phototransduction pathway was consistent with the structural defects and myopia of the dragon-eye *** the impairment of retinal development,cytokine-induced inflammation was activated,especially after proptosis,similar to the pathologic symptoms of many human ocular *** addition,differentially expressed transcription factors were significantly enriched in the PAX and homeobox families,two well-known transcription factor families involved in eye ***,our findings reveal the dynamic changes in key pathways during eye development in dragon-eye goldfish,and provide insights into the molecular mechanisms underlying drastically altered eyes in goldfish and human ocular disease.

关键词： goldfish dragon-eye ocular disease transcriptome PPAR signaling pathway lipid metabolism phototransduction transcription factor

Causal gene identification and desirable trait recreation in goldfish

在线全文

学校读者我要写书评

暂无评论

Science China(Life Sciences) 2022年第12期65卷 2341-2353页

作者： Peng Yu Yang Wang Zhi Li Hui Jin Liang-Liang Li xiao Han Zhong-Wei Wang xiao-Li Yang Xi-Yin Li xiao-juan zhang Li Zhou Jian-Fang Gui State Key Laboratory of Freshwater Ecology and Biotechnology Hubei Hongshan LaboratoryThe Innovation Academy of Seed DesignInstitute of HydrobiologyChinese Academy of SciencesWuhan 430072China University of Chinese Academy of Sciences Beijing 100049China

Goldfish(Carassius auratus) have long fascinated evolutionary biologists and geneticists because of their diverse morphological and color *** genome-wide association studies have provided a clue to uncover genomic basis underlying these phenotypic variations,but the causality between phenotypic and genotypic variations have not yet been ***,we edited proposed candidate genes to recreate phenotypic traits and developed a rapid biotechnology approach which combines gene editing with high-efficiency breeding,artificial gynogenesis,and temperature-induced sex reversal to establish homozygous mutants within two generations(approximately eight months).We first verified that low-density lipoprotein receptorrelated protein 2B(lrp2a B) is the causal gene for the dragon-eye variation and recreated the dragon-eye phenotype in side-view Pleated-skirt Lion-head ***,we demonstrated that the albino phenotype was determined by both homeologs of oculocutaneous albinism type II(oca2),which has subfunctionalized to differentially govern melanogenesis in the goldfish body surface and ***,we determined two causal genes for dragon-eye and albino phenotypes,and created four stable homozygous strains and more appealing goldfish with desirable *** developed biotechnology approach facilitates precise genetic breeding,which will accelerate re-domestication and recreation of phenotypically desirable goldfish.

关键词： goldfish precise molecular design breeding re-domestication gene editing ornamental traits dragon-eye albino

同方期刊数据库

Distinct co‑occurrence patterns and driving forces of abundant and rare bacterial communities in the multispecies solid‑state fermentation process of cereal vinegar

在线全文

学校读者我要写书评

暂无评论

Systems Microbiology and Biomanufacturing 2022年第2期2卷 317-330页

作者： Ming‑Ye Peng Zhen‑Ming Lu xiao‑juan zhang Ting Huang Yong‑Jian Deng Li‑juan Chai Jin‑Song Shi Zheng-Hong Xu Key Laboratory of Industrial Biotechnology of Ministry of Education School of BiotechnologyJiangnan UniversityWuxi 214122People’s Republic of China National Engineering Laboratory for Cereal Fermentation Technology Jiangnan University1800 Lihu AvenueWuxi 214122People’s Republic of China School of Pharmaceutical Science Jiangnan UniversityWuxi 214122People’s Republic of China Jiangsu Engineering Research Center for Bioactive Products Processing Technology Jiangnan UniversityWuxi 214122People’s Republic of China National Engineering Research Center of Solid-State Brewing Luzhou 646000People’s Republic of China

Multispecies solid-state fermentation is a traditional processing technique for the traditional Chinese food,such as cereal vinegar,Baijiu,***,few abundant and many rare microbes were involved in such processes,and the necessity and roles of the latter are less *** the co-occurrence patterns of abundant and rare bacterial community and abiotic factors infuencing their community assembly were investigated in acetic acid fermentation following starter inoculation,using Zhenjiang aromatic vinegar as a model *** taxa that contribute to the function of accumulating acid exhibited a ubiquitous distribution while the distribution of rare taxa along the fermentation process *** species composition of the rare taxa signifcantly altered,but abundant taxa were maintained after ***,the diversity of rare taxa changed more signifcantly than that of abundant *** abundant and rare sub-communities,which were contributed more with species turnover than species richness,were demonstrated to be driven by pH,acetic acid,ammonium nitrogen,and *** processes regulated the assembly of both sub-communities,but more prominent on rare ***-occurrence network was more governed by rare sub-communities,and the co-variations between microbial communities were predominantly positive,implying that rare taxa played more important role in the fermentation stability and network ***,seven network connectors were identifed,and three of them belonged to rare *** microbes of diferent modules were enriched at particular phases of *** results demonstrate the ecological signifcance of rare bacteria and provide new insights into understanding the abiotic factors infuence microbial structure in traditional fermented foods.

关键词： Solid-state fermentation Rare sub-community Community assembly Co-occurrence network Microbial interactions

A new sulfated triterpenoid from the bark of Zygophyllum fabago L.

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Chemical Letters 2010年第9期21卷 1100-1102页

作者： Yu Lin Feng Bin Xie He Ran Li Qiong Ming Xu xiao juan zhang Yue Sheng Wang Shi Lin Yang National Pharmaceutical Engineering Centre for Solid Preparation in Chinese Herbal Medicine Nanchang 330006 China Jiangxi University of Traditional Chinese Medicine Nanchang 330006 China College of Pharmacy. Soochow University. Suzhou 215123. China

A new sulfated triterpenoid,3β,24-dihydroxyurs-20-ene-24-O-sulphonyl-28-oic acid（fabagoin.1） was isolated from the barks of Zygophyllum fabago *** structure was elucidated on the basis of spectroscopic data.

关键词： Zygophyllum fabago L. Sulfated triterpenoid Fabagoin

Regain of sex determination system and sexual reproduction ability in a synthetic octoploid male fish

在线全文

学校读者我要写书评

暂无评论

Science China(Life Sciences) 2021年第1期64卷 77-87页

作者： Meng Lu Xi-Yin Li Zhi Li Wen-Xuan Du Li Zhou Yang Wang xiao-juan zhang Zhong-Wei Wang Jian-Fang Gui State Key Laboratory of Freshwater Ecology and Biotechnology Institute of HydrobiologyThe Innovative Academy of Seed DesignChinese Academy of SciencesWuhan430072China University of Chinese Academy of Sciences Beijing100049China

Polyploids in vertebrates are generally associated with unisexual reproduction,but the direct consequences of polyploidy on sex determination system and reproduction mode remain ***,we synthesized a group of artificial octoploids between unisexual gynogenetic hexaploid Carassius gibelio and sexual tetraploid Carassius *** synthetic octoploids were revealed to have more than 200 chromosomes,in which 50 chromosomes including the X/Y sex determination system were identified to transfer from sexual tetraploid *** into the unisexual gynogenetic hexaploid ***,a few synthetic octoploid males were found to be fertile,and one octoploid male was confirmed to regain sexual reproduction ability,which exhibits characteristics that are the same to sexual reproduction tetraploid males,such as 1:1 sex ratio occurrence,meiosis completion and euploid sperm formation in spermatogenesis,as well as normal embryo development and gene expression pattern during ***,the current finding provides a unique case to explore the effect of sex determination system incorporation on reproduction mode transition from unisexual gynogenesis to sexual reproduction along with genome synthesis of recurrent polyploidy in vertebrates.

关键词： polyploidy synthetic polyploid unisexual reproduction sexual reproduction sex determination system sex chromosome