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| 1 | A comparative study of magnetic properties between whole cells and isolated magnetosomes of Magnetospirillum magneticum AMB-1显示文摘The magnetic properties of magnetosome magnetite are of interdisciplinary interest because magnetosomes are potential carriers of natural remanent magnetization and paleoenvironment, as well as novel nano-biomaterials in biotechnological and biomedical applications. We carried out magnetic and electron transmission microscopy analyses of fresh Magnetospirillum magneticum AMB-1 whole cells and isolated magnetosomes. Results revealed that AMB-1 synthesized single-domain magnetite magneto-somes, which are arranged in the form of linear fragmental chain. The distinct differences of magnetic properties between these two samples can be faithfully interpreted in terms of spatial arrangement of magnetosomes and magnetostatic interaction. For the whole cells, the strong intra-chain interactions and weak inter-chain interactions generate behaviors of non-interacting uniaxial single-domain particles. Its δ-ratio is 3.0 and passes the Moskowitz test. In contrast, the isolated magnetosome sample has reduced values of coercivity and δ-ratio (1.5), due to increasing three-dimensional magnetostatic interactions and collapse of magneto-some chains. These observations provide useful insights into applications of the biogenic magnetite (magnetosomes) in magnetic nano-materials and magnetofossils in the paleomagnetic and environmental magnetism. | LI JinHua PAN YongXin LIU QingSong QIN HuaFeng DENG ChengLong CHE RenChao YANG XinAn | 2010 | Chinese Science Bulletin2010，55，1： | 3 |
| 2 | Effect of acupuncture plus conventional treatment on brain activity in ischemic stroke patients: a regional homogeneity analysis显示文摘OBJECTIVE: To determine differences in cerebral activity evoked by acupuncture and conventional stroke treatment, and identify the treatment targets.METHODS: In total, 21 patients were randomly divided into two groups. Group A(11 patients) received both acupuncture and conventional treatment, while group B(10 patients) received conventional treatment only. Resting-state functional magnetic resonance imaging(f MRI) was performed on each participant before and after treatment. Regional homogeneity analysis was performed to investigate the potential mechanism of acupuncture treatment by comparing differences in cerebral activity between treatments.RESULTS: Group A showed higher Re Ho in the frontal lobe(BA6, BA46), supra-marginal gyrus(BA40),middle temporal gyrus(BA21), cerebellum, and insula. Group B showed higher Re Ho in the frontal lobe(BA6) and parietal lobe(BA3, BA7).CONCLUSION: Acupuncture and conventional treatment triggered relatively different clinical efficacy and brain responses. Acupuncture treatment more significantly improved the symptoms of stroke patients. More marked changes in sensory,emotional, and motor areas(including the frontal lobe, middle temporal gyrus, cerebellum, and insula) might reflect the specific acupuncture mechanism. | Wu Ping Zeng Fang Li Yongxin Li Ji Qiu Lihua Qin Wei Luo Lu Yin Canxin Xiong Yan Bai Yu Wang Dan Zhou Yumei Liang Fanrong | 2017 | Journal of Traditional Chinese Medicine2017，37，5： | 3 |
| 3 | Magnetic properties related to thermal treatment of pyrite显示文摘Detailed rock magnetic experiments were conducted on high-purity natural crystalline pyrite and its products of thermal treatments in both argon and air atmospheres. In argon atmosphere (reducing environment), the pyrite is altered by heating to magnetite and pyrrhotite; the latter is stable in argon atmosphere, and has coercive force and coercivity of remanence of ~20 and ~30 mT, respectively. Whereas in air, the pyrite is ultimately oxidized to hematite. First order reversal curve (FORC) diagram of the end product shows that the remanence coercivity of hematite is up to ~1400 mT. The corresponding thermal transformation process of pyrite in air can be simply summarized as pyrite→ pyrrhotite→magnetite→hematite. These results are helpful for understanding of sedimentary magnetism, secondary chemical remanence and meteorolite magnetic properties. | WANG Lei PAN YongXin LI JinHua QIN HuaFeng | 2008 | Science China Earth Sciences2008，51，8： | 3 |
| 4 | Relationship between the continually expanded interlayer distance of layered silicates and excess intercalation of cationic surfactants 显示文摘 | ZHAO ZHONGFU TANG TAO QIN YONGXIN | 2003 | Langmuir2003，19，22： | 1 |
| 5 | Semantic theories of programs with nested interrupts显示文摘 | Yanhong HUANG Jifeng HE Huibiao ZHU Yongxin ZHAO Jianqi SHI Shengchao QIN | 2015 | Frontiers of Computer Science2015，9，3： | 1 |
| 6 | Effect of swelling response of the support particles on ethylene polymerization显示文摘 | Shi Liya Qin Yongxin Cheng Wenxi | 2007 | Polymer2007，48，9： | 1 |
| 7 | Photoluminescence of Sr2CeO4 Phosphors Prepared by Microwave Calcination and Pulsed Laser Deposition显示文摘 | Tang Yongxin Guo Hangping Qin Qizong | 2002 | Solid State Communications2002，121，： | 1 |
| 8 | Ultrathin metal-organic framework nanosheets (Cu-TCPP)-based isothermal nucleic acid amplification for food allergen detection显示文摘The rapid and accurate detection of peanuts and soybeans allergen is important to the food safety. In this study, Cu-TCPP nanosheet, a kind of ultra-thin metal-organic framework(MOF)was synthesized and applied in loop-mediated isothermal amplification(named Cu-TCPP@LAMP), which can inhibit the non-specific amplification by absorbing and precise temperature releasing of single primer. As thus, Cu-TCPP@LAMP can achieve high sensitivity and specific amplification of the target gene. As a result, peanut and soybean allergens genes contained in food were successfully detected with a favorable detection sensitivity(5 ng/μL for peanuts and 10 ng/μL for soybeans)and reliable repeatability(The coefficient of variation was 3.38% for peanuts and 3.33% for soybeans). Moreover, the established method was utilized for detection of several commercial products, and had a high consistency with the standard method. Apart from food allergens, this novel assay can be widely used in other areas, such as pathogen detection, tumor nucleic acid detection and so on. | Jiale Gao Xiaodong Sun Yongxin Liu Bing Niu Qin Chen Xueen Fang | 2023 | Food Science and Human Wellness2023，12，5： | 1 |
| 9 | 显示文摘 | Tang Yongxin Guo Hengping Qin Qizong | 2002 | Solid State Communicatins2002，121，67： | 1 |
| 10 | Regulatory Role of Retinoic Acid in Male Pregnancy of the Seahorse显示文摘Seahorses epitomize the exuberance of evolution.They have the unique characteristic of male pregnancy,which includes the carrying of many embryos in a brood pouch that incubates and nourishes the embryos,similar to the mammalian placenta.However,the regulatory networks underlying brood pouch formation and pregnancy remain largely unknown.In this study,comparative transcriptomic and metabolomic profiling on the lined seahorse Hippocampus erectus,with unformed,newly formed,and pregnant brood pouches identified a total of 141 and 2,533 differentially expressed genes together with 73 and 121 significantly differential metabolites related to brood pouch formation and pregnancy,respectively.Specifically,integrative omics analysis revealed that retinoic acid(RA)synthesis and signaling pathway played essential roles in the formation of the brood pouch and pregnancy.RA might function upstream of testosterone and progesterone,thereby directly influencing brood pouch formation by regulating the expression of fshr and cyp7a1.Our results also revealed that RA regulates antioxidant defenses,particularly during male pregnancy.Alternatively,pregnancy caused a consistent decrease in RA,canthaxanthin,astaxanthin,and glutathione synthetase,and an increase in susceptibility to oxidative stress,which may balance brood pouch development and reproduction in seahorses and pave the way to successful gestation. | Chunyan Li Yongxin Li Geng Qin Zelin Chen Meng Qu Bo Zhang Xue Han Xin Wang Pei-yuan Qian Qiang Lin | 2020 | The Innovation2020，1，3： | 0 |
| 11 | Label-Free,Versatile,Real-Time,and High-Throughput Monitoring of Tyrosine Phosphorylation Based on Reversible Configuration Freeze显示文摘Tyrosine Phosphorylation(pTyr)is a critical and ubiquitous regulation mechanism in biology that plays a central role in controlling intracellular signaling networks.Precise recognition and specific detection of pTyr peptides have been of great importance for both discoveries of disease biomarkers and screening of therapeutic drugs,especially cancers.Here we report a label-free,versatile,realtime,and high-throughput detection strategy for phosphopeptide(PP)based on reversible configuration freeze of a unique hemicyanine-labeled 2-(2′-hydroxyphenyl)-4-methyloxazole(H-HPMO).By taking advantage of the“OFF–ON”transition of fluorescence,H-HPMO–Cu^(2+)complex displays a highly sensitive and selective response to PPs with modified sites on serine,threonine,and tyrosine.Specific recognition of Tyr PPs is achieved by performing a simple logic gate operation and introducing Ca^(2+)interference as an input.This PP detection approach is universal for various peptide sequences and displays high potential in large-scale kinase inhibitor screening,which will promote the development of targeted anticancer drugs. | Yongxin Chang Miao Guo Mengyuan Song Wenjing Sun Dongdong Wang Minmin Li Jixia Wang Yahui Zhang Haijuan Qin Guangyan Qing | 2023 | CCS Chemistry2023，5，6： | 0 |
| 12 | Removal Effect of Nitrifying Bacteria on Ammonia Nitrogen in Water显示文摘[Objectives]To investigate the removal effect of nitrifying bacteria on ammonia nitrogen in water.[Methods]In this experiment,the treated water(referred to as raw water hereinafter)from the Changping Town Qiaoli Water Treatment Project in Dongguan City of Guangdong Province was used as the experimental water body,and the nitrifying bacteria liquid used in the project was taken as the experimental material,to explore the removal effect of the nitrifying bacteria liquid on the ammonia nitrogen in the water body.[Results]Under the condition that other variables remain unchanged,the more the amount of nitrifying bacteria liquid added,the higher the removal efficiency of nitrifying bacteria liquid;under the same conditions,the removal effect of ammonia nitrogen in a stirred water body is better than that in an unstirred water body;the removal effect of ammonia nitrogen in a water body with bio-media/carriers is better than that without bio-media/carriers.[Conclusions]Nitrifying bacteria have a better removal effect on the ammonia nitrogen in the water body. | Jianqiao QIN Yongxin LI Min DAI Dongni YU | 2022 | Asian Agricultural Research2022，14，1： | 0 |
| 13 | Simultaneously enhancing the electronic and ionic conductivities of Li_(2)ZnTi_(3)O_(8)via modification with polyacrylonitrile-derived carbon for high-performance anodes显示文摘Polyacrylonitrile(PAN)with C≡N bonds can be converted to nitrogen-doped carbon during carbonization,which enhances electronic conductivity by compensating for the deficiency of the Li_(2)ZnTi_(3)O_(8)(LZTO)anode.In this study,LZTO was modified by carbonizing a homogeneous PAN/LZTO powder mixture at approximately 800℃for 5 h in nitrogen stream to uniformly coat nitrogen-doped carbon around the LZTO particles and to yield nitrogen-doped LZTO.PAN-60 exhibited a capacity retention of 74.8%as the current density increased from 0.1 to 1.6 A g−1,and had charge/discharge capacities of 250.1/250.8 mAh g−1 even after 1100 cycles at 0.5 A g−1.Structural and compositional analysis along with electrochemical tests showed that the uniform nitrogen-doped carbon coating and the nitrogen-doped LZTO favor electron transfer,while the defects induced by nitrogen-doping in LZTO promote Li-ion migration.The enhanced electronic and ionic conductivities are favorable to alleviate the polarization during cycling,and thus are responsible for the optimized performance. | Yujun Bai Jiali Qin Jiaxuan Cai Huiling Zhu Tao Li Yanxiang Wang Yongxin Qi | 2023 | ChemPhysMater2023，2，1： | 0 |
| 14 | A UTP semantic model for Orc language with execution status and fault handling显示文摘海怪语言是建议在服务学习组织模式的并发演算面向的计算。它的专辑展示,例如并发和异步使它成为的高度为学习依靠万维网服务的网应用程序的一个出众的题目。为海怪的常规语义不包含服务的实行地位以便一个节目不能决定一种服务是否通常终止了或在它出版了一些结果以后,与失败停住。它意味着这种失败不能被差错处理器捕获。而且,如果它经常没有通过更少,如此的一个语义模型不能建立说一个节目更好的一份订单。这份报纸采用 UTP 方法建议 denotational 为包含实行地位信息的海怪的语义模型。处理语义的失败被定义恢复失败实行回到正常。一份精炼订单被定义基于他们的执行失败比较二个系统。把顺序基于这,没有,介绍失败恢复机制的一个系统比一个更好被考虑。扩大运作的语义也被建议并且证明等价于 denotational 语义。 | Qin LI Yongxin ZHAO Huibiao ZHU Jifeng HE | 2014 | Frontiers of Computer Science2014，8，5： | 0 |
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