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Eyes of diff ering colors in Alvinocaris longirostris from deep-sea chemosynthetic ecosystems: genetic and molecular evidence of its formation mechanism

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Journal of Oceanology and Limnology 2021年第1期39卷 282-296页

作者： qian xin Min HUI Chaolun LI Zhongli SHA Institute of Oceanology Chinese Academy of SciencesQingdao 266071China Center for Ocean Mega-Science Chinese Academy of SciencesQingdao 266071China Laboratory for Marine Biology and Biotechnology Qingdao National Laboratory for Marine Science and TechnologyQingdao 266237China University of Chinese Academy of Sciences Beijing 100049China

Coloration is an important phenotypic trait for multiple adaptive *** is interesting to fi nd white-eye(AW)and orange-eye(AO)phenotypes in the shrimp Alvinocaris longirostris inhabiting the deep-sea cold seep and hydrothermal vent areas of the northwestern Pacifi *** comparative transcriptome analyses,1491 diff erentially expressed genes(DEGs)were identified between AW and *** them,many DEGs were associated with immunity,antioxidation,and detoxifi *** signifi cant enzyme encoding genes,xanthine dehydrogenase,and tryptophan oxidase involved in pigment biosynthesis pathways were up-regulated in AW and AO,respectively,which might be related to the diff erences of white and orange eye ***,single nucleotide polymorphism(SNP)calling detected that genotypes of 28 SNP distributing in 14 unigenes were completely diff erent between AW and ***,there were three and two non-synonymous mutations in immune genes crustin Pm5 and antimicrobial peptide,*** indicate that the diff erence in eye color is probably resulted from immune response to variable micro-environmental stressors encountered in the dispersal process of the shrimps,such as symbiotic microbes,pathogens,and toxic substances,and might be genetically fi xed at *** suggested pathway preliminarily explained the formation mechanism of diff erent eye phenotypes in Alvinocaridid shrimps,providing a basis for further study on adaptive evolution of eyes in deep-sea chemosynthetic faunas.

关键词： alvinocaridid shrimps cold seep and hydrothermal vent diff erentially expressed genes eye color single nucleotide polymorphism(SNP)mutation transcriptome

Characterization of 17-4PH stainless steel powders produced by supersonic gas atomization

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International Journal of Minerals,Metallurgy and Materials 2012年第1期19卷 83-88页

作者： xin-ming Zhao Jun Xu Xue-xin Zhu Shao-ming Zhang Wen-dong Zhao Guo-liang Yuan National Engineering and Technological Research Center for Non-ferrous Metals Composites General Research Institute for Non-ferrous Metals Beijing 100088 China Beijing COMPO Advanced Technology Co. Ltd. Beijing 100088 China

17-4PH stainless steel powders were prepared using a supersonic nozzle in a close-coupled gas atomization system. The characteristics of powder particles were carried out by means of a laser particle size analyzer, scanning electron microscopy （SEM）, and the X-ray diffraction （XRD） technique. The results show that the mass median particle diameter is about 19.15 prn. Three main types of surface microstructures are observed in the powders： well-developed dendrite, cellular, and cellular dendrite structure. The XRD measurements show that, as the particle size decreases, the amount of fcc phase gradually decreases and that of bcc phase increases. The cooling rate is inversely related to the particle size, i.e., it decreases with an increase in particle size.

关键词： gas atomization metal powder stainless steel metal injection molding

Raman scattering in In/InOx core-shell structured nanoparticles

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Chinese Physics B 2014年第8期23卷 117-120页

作者： Wang Meng Tian Ye Zhang Jian-ming Guo Chuan-Fei Zhang xin-Zheng Liu qian The MOE Key Laboratory of Weak-Light Nonlinear Photonics TEDA Applied Physics School and School of Physics Nankai University Tianjin 300457 China National Center for Nanoscience and Technology Belting 100190 China University of the Chinese Academy of Sciences Beijing 100190 China Department of Physics and TcSUH University of Houston Houston TX 77204 USA

The properties of Raman phonons are very important due to the fact that they can availably reflect some important physical information. An abnormal Raman peak is observed at about 558 cm-1 in In film composed of In/InOx core-shell structured nanoparticles, and the phonon mode stays very stable when the temperature changes. Our results indicate that this Raman scattering is attributed to the existence of incomplete indium oxide in the oxide shell.

关键词： Raman scattering core-shell structure indium nanoparticles

Phase-Sensitive Detection of Raman-Enhanced Nondegenerate Four-Wave Mixing by Polarization Interference

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Chinese Physics Letters 2001年第1期18卷 54-56页

作者： JIANG qian MI xin YU Zu-He WANG Yan-Bang WANG Li-Jun FU Pan-ming Laboratory of Optical Physics Institute of Physics&Center for Condensed Matter Physics Chinese Academy of SciencesBeijing 100080

We demonstrated a phase-sensitive method for studying the Raman-enhanced nondegenerate four-wave mixing(RENFWM).The reference beam is another four-wave mixing signal,which propagates along the same optical path as the RENFWM *** method is used for studying the phase dispersion of the third-ordersusceptibility X^((3))and for the optical heterodyne detection of the RENFWM signal.

关键词： optical FWM mixing

Primary intramedullary melanoma of lumbar spinal cord: A case report

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World Journal of Clinical Cases 2021年第10期9卷 2352-2356页

作者： Le-Dong Sun xin Chu Li Xu Xiu-Zhen Fan Yi qian Da-ming Zuo Department of Dermatology The Fifth Affiliated HospitalSouthern Medical UniversityGuangzhou 510900Guangdong ProvinceChina The Fifth Affiliated Hospital Southern Medical UniversityGuangzhou 510900Guangdong ProvinceChina Department of Medical Laboratory Southern Medical UniversityGuangzhou 510515Guangdong ProvinceChina

BACKGROUND Primary intramedullary melanoma is a very rare tumor,most frequently occurring in the cervical and thoracic spinal *** SUMMARY We present a rare case in which the primary intramedullary melanoma was located in the lumbar spine.A 56-year-old man complained of progressive intermittent pain in the lumbar *** magnetic resonance imaging showed a spinal intramedullary tumor between the L3 and S1 *** tumor was resected entirely,and the diagnosis of malignant melanoma was confirmed by *** Primary melanoma of the spinal cord,particularly intramedullary localization,has rarely been reported in the previous *** describe a primary malignant melanoma of the lumbar spinal cord and discuss the challenges associated with the diagnosis.

关键词： Intramedullary melanoma Spinal cord Lumbar Magnetic resonance imaging Histopathological examination Immunohistochemical staining Case report

Nitrogen-Doped Hierarchical Heterostructured Aerophobic MoS_(x)/Ni_(3)S_(2)Nanowires by One-pot Synthesis:System Engineering and Synergistic Effect in Electrocatalysis of Hydrogen Evolution Reaction

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Energy & Environmental Materials 2021年第4期4卷 658-663页

作者： xin Ma Wanru Chen qian Li Longjian Xue Chuang Peng School of Resource and Environmental Sciences Wuhan UniversityWuhan 430072China The Institute of Technological Sciences Wuhan UniversityWuhan 430072China

Non-noble metal electrocatalysis has witnessed rapid and profound performance improvements owing to the emergence of advanced nanosynthetic *** of these nanotechniques can lead to synergistic performance enhancement,but such system-engineering strategies are difficult to achieve because of the lack of effective synthesis *** hereby demonstrate an integrated approach that combines most of the existing nanotechniques in a facile one-pot *** characterization reveals that the product shows key features intended by techniques including morphological,structural,doping,heterointerface,and surface wetting *** as-obtained nitrogen-doped hierarchical heterostructured MoS_(x)/Ni_(3)S_(2)nanowires show an overpotential that is only50 mV higher than commercial Pt/C for hydrogen evolution reaction over current densities from 10 to 150 mA cm^(-2).Correlations between the adopted nanotechniques and the electrochemical reaction rates are established by evaluating the impacts of individual techniques on the activation energy,pre-exponential factor,and transfer *** indepth analysis provides a full account of the synergistic effects and the overall improvement in electrocatalytic performance of hydrogen evolution *** work manifests a generic strategy for multipurpose material design in non-noble metal electrocatalysis.

关键词： electrochemical reaction rate nanotechnology non-noble metal catalysis synergistic effect system engineering

Release performance and sustained-release efficacy of emamectin benzoate-loaded polylactic acid microspheres

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Journal of Integrative Agriculture 2018年第3期17卷 640-647页

作者： YIN ming-ming ZHU xin-yan CHEN Fu-liang Institute of Plant Protection Chinese Academy of Agricultural Sciences

High-performance liquid chromatography （HPLC） was employed to determine drug release rates based on emamectin benzoate concentrations in the medium. Release kinetics equations were used to fit the drug release behavior. The effects of particle size and release medium pH on the release rate were also investigated. The indoor toxicity of emamectin benzoate-loaded polylactic acid microspheres on the diamondback moth larva （Plutella xylostella） was studied to explore drug sustained-release performance. In acidic and neutral media, the drug release behavior of the microspheres was in accord with the first-order kinetics equation. Increasing the spray dosage of emamectin benzoate-loaded polylactic acid microspheres initially resulted in an equivalent insecticidal efficacy with the conventional emamectin benzoate microemulsion. However, the drug persistence period was four-fold longer than that observed using the conventional formulation. The developed emamectin benzoate-loaded polylactic acid microspheres showed dramatic sustained-release performance. A treatment threshold of greater than 35 mg mL-1 was established for an efficient accumulated release concentration of emamectin benzoate-loaded microspheres.

关键词： emamectin benzoate polylactic acid microspheres release performance kinetics equation sustained-release efficacy

A Reaction-diffusion System with Nonlinear Absorption Terms and Boundary Flux

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Acta Mathematicae Applicatae Sinica 2008年第3期24卷 409-422页

作者： ming-xin Wang Xiao-liu Wang Department of Mathematics Southeast University Nanjing 210018 China

This paper deals with a reaction-diffusion system with nonlinear absorption terms and boundary flux. As results of interactions among the six nonlinear terms in the system, some sufficient conditions on global existence and finite time blow-up of the solutions are described via all the six nonlinear exponents appearing in the six nonlinear terms. In addition, we also show the influence of the coefficients of the absorption terms as well as the geometry of the domain to the global existence and finite time blow-up of the solutions for some cases. At last, some numerical results are given.

关键词： Reaction-diffusion system global existence blow-up nonlinear absorption nonlinear boundary flux

Interferon-c and interleukin-4 detected in serum and saliva from patients with oral lichen planus

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International Journal of Oral Science 2014年第1期6卷 22-26页

作者： Wen-Zhao Liu ming-Jing He Long Long Dong-Liang Mu ming-Shu Xu Xue xing xin Zeng Ga Liao Hong-Xia Dan qian-ming Chen College of Stomatology Chongqing Medical University Chongqing Research Center for Oral Diseases and Biomedical Science State Key Laboratory of Oral Diseases West China Hospital of Stomatology Sichuan University

Our previous salivary study had demonstrated an apparent T helper 2 （Th2）-predominance in saliva of oral lichen planus （OLP） patients and suggested a potential of salivary interleukin-4 （IL-4） as a biomarker for monitoring disease severity. To further determine the consistency of Th1/Th2 bias of OLP, this study investigated the expression profile of interferon-γ （IFN-γ） and IL-4 in serum and the relationship of the serum levels of these cytokines with their saliva partners. Sixty ethnic Chinese patients with OLP （40 of the erythematous/ulcerative form and 20 of the reticular form） were recruited for this study, with 40 age-sex-matched healthy volunteers as control group. IFN-γ and IL-4 levels in serum and paired saliva samples were screened by enzyme-linked immunosorbent assay. OLP patient showed a low-level IFN-γ but high-level IL-4 expression profile in both serum and saliva, with a lower IFN-γ/IL-4 ratio. Serum IL-4 level in the erythematous/ulcerative group was significantly higher than that in the reticular group. Serum levels of IFN-γ and IL-4 were significantly and positively correlated with their saliva partners. These results provided more evidence for Th2 cytokine- predominant immune imbalance in OLP, as well as the potential of IL-4 as the biomarker for monitoring severity of OLP.

关键词： oral lichen planus saliva serum T helper cytokines