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正交设计的诱导子组合对三角褐指藻岩藻黄素含量和光合生理及基因表达的影响

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中国药学杂志 2024年第10期59卷 879-886页

作者：吴欣龚一富郦露群高小雯吕娇王何瑜宁波大学海洋学院浙江省海洋生物工程重点实验室浙江宁波315832 宁波大学食品与药学学院浙江宁波315832

目的研究光合诱导因子(PIF)、茉莉酸甲酯(MeJA)、硫酸铈铵(ACS)和乙酰水杨酸(ASA)不同浓度组合对三角褐指藻岩藻黄素含量的影响,筛选促进岩藻黄素积累的最佳诱导子组合,并研究最佳诱导子组合处理下岩藻黄素含量积累的光合生理及基因表... 详细信息

目的研究光合诱导因子(PIF)、茉莉酸甲酯(MeJA)、硫酸铈铵(ACS)和乙酰水杨酸(ASA)不同浓度组合对三角褐指藻岩藻黄素含量的影响,筛选促进岩藻黄素积累的最佳诱导子组合,并研究最佳诱导子组合处理下岩藻黄素含量积累的光合生理及基因表达变化。方法采用4因素4水平正交试验法筛选出对三角褐指藻岩藻黄素含量促进效果最佳的诱导子组合,调制叶绿素荧光(PAM)检测最佳诱导子组合处理下三角褐指藻的叶绿素荧光参数,反转录-实时荧光定量聚合酶链反应(RT-qPCR)检测zds、lcyb、rbcl及psbA基因的表达水平。结果正交试验结果表明,MeJA是影响三角褐指藻藻细胞岩藻黄素积累最显著的因素,其次是ASA。促进三角褐指藻岩藻黄素积累的最佳诱导子组合为1μg·l^(-1)PIF+0.2 mg·l^(-1)ACS+40 mg·l^(-1)ASA。该诱导子组合处理下三角褐指藻岩藻黄素含量达到21.77 mg·g^(-1),较对照组提高了104%。光合生理研究结果表明,诱导子组合显著提高了三角褐指藻藻细胞的最大相对电子传递速率(rETRmax)值(Plcyb及光合作用PSⅡ碳同化相关基因rbcl、psbA基因的表达,其中,rbcl基因的表达量最高,是对照处理组的2.0倍(Pla含量、lcyb、rbcl、psbA基因表达量呈极显著正相关,三角褐指藻可通过促进光合作用基因表达和PSⅡ相对电子传递速率来提高光合作用效率、促进岩藻黄素合成相关基因表达来促进岩藻黄素积累。

关键词：三角褐指藻岩藻黄素正交试验光合生理指标基因表达

EFFECT OF MnO_(2) ADDITIVE ON PERFORMANCES OF NiFe_(2)O_(4) SPINEl BASED INERT ANODE

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Acta Metallurgica Sinica(English letters) 2005年第5期18卷 603-608页

作者： W.l. jiao l. Zhang G. C. Yao School of Material Science and Engineering Shandong University of TechnologyZibo 255049 China School of Material and Metallurgy Northeastern University Shenyang 110004 China

The NiFe2O4 inert anode is synthesized by high-temperature solid-state reaction method using NiO and Fe2O3 as main raw materials and adding MnO2 powder as additive. Archimedes method using water immersion technique is used to measure the sintering performances of sampies. The static thermal corrosion rates of samples are measured by weight loss. SEM is employed for the observation of material microstructure, and phase structure of the sample surface after corrosion is determined by XRD. The experimental results indicate that a suitable MnO2 additive content is 2%, while the sintering performance is the best, and the static thermal corrosion rate is the lowest. Because of MnO2 dopant enriching at crystal boundary, the corrosion reaction of molten salt to crystal grain creates Mn2AlO4 phase, which is denser than NiFe2O4 phase, and prevents the cryolite molten salt to penetrate into the inert anode, thus reducing the corrosion.

关键词： nickel ferrite spinel inert anode corrosion resistance,aluminum electrolysis

抑制P21活化激酶1通过减少Bad的磷酸化促进血管平滑肌细胞凋亡

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中华高血压杂志(中英文) 2024年第9期 900-900页

作者： jiao l Yi W Chang YR Cheng Wl Cao Jl Chao SP Zhao F lu Z 刘青

p21活化激酶1（P21-activated kinase 1,Pak1）对细胞凋亡有影响，近期有报道称其在多种心血管疾病中发挥重要作用，而血管平滑肌细胞（vascular smooth muscle cell,VSMC）凋亡是其中的关键过程。因此，研究者推测Pak1可能是调节VSMC...

p21活化激酶1（P21-activated kinase 1,Pak1）对细胞凋亡有影响，近期有报道称其在多种心血管疾病中发挥重要作用，而血管平滑肌细胞（vascular smooth muscle cell,VSMC）凋亡是其中的关键过程。因此，研究者推测Pak1可能是调节VSMC行为的一个新靶点。方法与结果：在该研究中，研究者发现，在给予H2O2后，VSMC中Pak1的表达显著上调，且依赖于刺激时间。

关键词：

Heavy fermions in high magnetic fields

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Chinese Physics B 2019年第1期28卷 25-38页

作者： M Smidman B Shen C Y Guo l jiao X lu H Q Yuan Center for Correlated Matter and Department of Physics Zhejiang UniversityHangzhou 310058China Collaborative Innovation Center of Advanced Microstructures Nanjing UniversityNanjing 210093China

Heavy fermion materials are prototypical strongly correlated electron systems, where the strong electron–electron interactions lead to a wide range of novel phenomena and emergent phases of matter. Due to the low energy scales, the relative strengths of the Ruderman–Kittel–Kasuya–Yosida(RKKY) and Kondo interactions can often be readily tuned by non-thermal control parameters such as pressure, doping, or applied magnetic fields, which can give rise to quantum criticality and unconventional superconductivity. Here we provide a brief overview of research into heavy fermion materials in high magnetic fields, focussing on three main areas. Firstly we review the use of magnetic fields as a tuning parameter,and in particular the ability to realize different varieties of quantum critical behaviors. We then discuss the properties of heavy fermion superconductors in magnetic fields, where experiments in applied fields can reveal the nature of the order parameter, and induce new novel phenomena. Finally we report recent studies of topological Kondo systems, including topological Kondo insulators and Kondo–Weyl semimetals. Here experiments in magnetic fields can be used to probe the topologically non-trivial Fermi surface, as well as related field-induced phenomena such as the chiral anomaly and topological Hall effect.

关键词： heavy fermions high magnetic fields quantum phase transitions heavy fermion superconductivity topological Kondo systems

基于R语言的GGE双标图在花生高产稳产和适应性分析中的应用——以我国北方片小粒花生新品种安花3号为例

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花生学报 2024年第1期53卷 19-25页

作者：王芳沈希华邢晓宁王海莉芦连勇王艳吕娇艳华福平安阳市农业科学院河南安阳455000

为更科学准确地评价花生品种的丰产稳产性和广适性,提高品种选育和推广效率,本研究采用基于R语言的GGE双标图,分析了2018-2019年国家(北方片)花生新品种多点试验小粒组中安花3号等参试品种的丰产、稳产性和适应性。结果表明:安花3号在... 详细信息

为更科学准确地评价花生品种的丰产稳产性和广适性,提高品种选育和推广效率,本研究采用基于R语言的GGE双标图,分析了2018-2019年国家(北方片)花生新品种多点试验小粒组中安花3号等参试品种的丰产、稳产性和适应性。结果表明:安花3号在两年品种试验中的丰产性突出,稳产性优良;在两年试验的综合性排名双标图中,距理想品种中心点最近,高产稳产性综合表现均排名第一;在参试品种中适应性最广,适宜种植区涵盖我国北方河南、山东、河北、辽宁及山西等省份;与对照品种花育20号比较,安花3号在我国北方小粒组大部分区域有明显种植优势。综上,安花3号是具有丰产性、稳产性和广适性的优良品种。本研究为安花3号的育种利用和生产推广提供了理论依据与参考。

关键词：花生品种评价丰产性稳产性品种适应性

A model simulation on the SARS-CoV-2 Omicron variant containment in Beijing,China

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Intelligent Medicine 2023年第1期3卷 10-15页

作者： Shihao liang Tianhong Jiang Zengtao jiao l Zhengyuan Zhou Yidu Cloud Technology Inc Beijing 100089China Changshu Center for Disease Control and Prevention Jiangsu 215501China

Objective:The Omicron variant of SARS-COV-2 is replacing previously circulating variants around the world in *** outbreaks of the Omicron variant into China have posed a concern how to properly response to battle against evolving coronavirus disease 2019(COVID-19).Methods:Based on the epidemic data from website announced by Beijing Center for Disease Control and Prevention for the recent outbreak in Beijing from April 22nd to June 8th in 2022,we developed a modified SEPIR model to mathematically simulate the customized dynamic COVID-zero strategy and project transmissions of the Omicron *** demonstrate the effectiveness of dynamic-changing policies deployment during this outbreak control,we modified the transmission rate into four parts according to policy-changing dates as April 22nd to May 2nd,May 3rd to 11st,May 12th to 21st,May 22nd to June 8th,and we adopted Markov chain Monte Carlo(MCMC)to estimate different transmission *** we altered the timing and scaling of these measures used to understand the effectiveness of these policies on the Omicron ***:The estimated effective reproduction number of four parts were 1.75(95%CI 1.66-1.85),0.89(95%CI 0.79-0.99),1.15(95%CI 1.05-1.26)and 0.53(95%CI 0.48-0.60),*** the experiment,we found that till June 8th the cumulative cases would rise to 132,609(95%CI 59,667-250,639),73.39 times of observed cumulative cases number 1,807 if no policy were implemented on May 3rd,and would be 3,235(95%CI 1,909-4,954),increased by 79.03%if no policy were implemented on May 22nd.A 3-day delay of the implementation of policies would led to increase of cumulative cases by 58.28%and a 7-day delay would led to increase of cumulative cases by 187.00%.On the other hand,taking control measures 3 or 7 days in advance would result in merely 38.63%or 68.62%reduction of real cumulative *** if lockdown implemented 3 days before May 3rd,the cumulative cases would be 289(95%CI 211-378),reduced by 84%

关键词： COVID-19 Dynamic COVID-zero strategy Compartmental models Epidemic modeling Prevention measures

Hydrochemical Characteristics and Evolution of Underground Brine in lop Nur,Northwestern China

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Acta Geologica Sinica(English Edition) 2024年第3期98卷 786-800页

作者： BO Ying lIU Chenglin jiao Pengcheng lU Fenglin ZHANG Hua MNR Key laboratory of Metallogeny and Mineral Assessment Institute of Mineral ResourcesChinese Academy of Geological SciencesBeijing 100037China

lop Nur is located at the eastmost end of the Tarim Basin in Xinjiang,Northwestern *** study reviews the hydrochemical characteristics and evolution of underground brine in lop Nur,based on analytical data from 429 water samples(mainly brine).It is found that in the NE-SW direction,from the periphery to the luobei sub-depression,while the hydrochemical type varies from the sodium sulfate subtype(S)to the magnesium sulfate subtype(M),the corresponding brine in the phase diagram transfers from the thenardite phase(Then)area,through the bloedite phase(Blo),epsomite phase(Eps),picromerite phase(Picro),finally reaching the sylvite phase(Syl)*** for the degree of evolution,the sequence is the peripheryluobei horizontally and the overlying glauberite brinelying clastic brine *** is concluded that the oxygen and hydrogen isotopic compositions of the brine have evidently been affected through the effects of evaporation and altitude,as well as the changes in local water circulation in recent *** and chloride isotopic compositions show that the glauberite brine is formed under more arid conditions than the clastic *** strontium isotopic composition indicates that the lop Nur brine primarily originates from surface water;however,deep recharge may also be involved in the evolution of the brine,according to previous noble gas *** is confirmed that the brine in lop Nur has become enriched with potassium prior to halite precipitation over the full course of the salt lake's *** on chemical compositions of brine from drillhole lDK01 and previous lithological studies,the evolution of the salt lake can be divided into three stages and it is inferred that the brine in lop Nur may have undergone at least two significant concentration-dilution periods.

关键词： brine evolution isotope enrichment potassium lop Nur

Pressure Evolution of the Magnetism and Fermi Surface of YbPtBi Probed by a Tunnel Diode Oscillator Based Method

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Chinese Physics letters 2022年第9期39卷 41-46页

作者： Y.E.Huang F.Wu A.Wang Y.Chen l.jiao M.Smidman H.Q.Yuan Center for Correlated Matter and Department of Physics Zhejiang UniversityHangzhou 310058China Zhejiang Province Key laboratory of Quantum Technology and Device Department of PhysicsZhejiang UniversityHangzhou 310058China State Key laboratory of Silicon Materials Zhejiang UniversityHangzhou 310058China Collaborative Innovation Center of Advanced Microstructures Nanjing 210093China

A central research topic in condensed matter physics is the understanding of the evolution of various phases and phase transitions under different tuning parameters such as temperature, magnetic field and pressure. To explore the pressure-induced evolution of the magnetism and Fermi surface of the heavy fermion antiferromagnet Yb Pt Bi, we performed tunnel diode oscillator based measurements under pressure at low temperatures in high magnetic fields. Our results reveal that the magnetic order strengthens and the Fermi surface shrinks as the pressure increases, which are consistent with typical observations for Yb-based heavy fermion compounds. In addition, an anomalous change in the quantum oscillation amplitudes is observed above 1.5 GPa, and determining the origin requires further study.

关键词： Fermi Probe oscillation

A Possible γ-Ray Pulsation from PSR J1740-5340B in the Globular Cluster NGC 6397

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Research in Astronomy and Astrophysics 2024年第1期24卷 285-291页

作者： jiao Zheng Pengfei Zhang li Zhang Department of Astronomy School of Physics and AstronomyKey Laboratory of Astroparticle Physics of Yunnan ProvinceYunnan UniversityKunming 650091China

Recently, a new radio millisecond pulsar(MSP) J1740-5340B, hosted in the globular cluster(GC) NGC 6397,was reported with a 5.78 ms spin period in an eclipsing binary system with a 1.97 days orbital period. Based on a modified radio ephemeris updated by tool tempo2, we analyze the ~15 yr γ-ray data obtained from the large Area Telescope on board the Fermi Gamma-ray Space Telescope and detect PSR J1740-5340B's γ-ray pulsation at a confidence level of ~4σ with a weighted H-test value of ~26. By performing a phase-resolved analysis, the γ-ray luminosity in on-pulse interval of PSR J1740-5340B is l_(γ)~ 3.8 × 10^(33) erg s^(-1) using NGC 6397's distance of 2.48 kpc. And γ-rays from the on-pulse part of PSR J1740-5340B contribute ~90% of the total observed γ-ray emissions from NGC 6397. No significant γ-ray pulsation of another MSP J1740-5340A in the GC is *** that the previous four cases of MSPs in GCs, more data in γ-ray, X-ray, and radio are encouraged to finally confirm the γ-ray emissions from MSP J1740-5340B, especially starving for a precise ephemeris.

关键词： gamma-rays:galaxies (stars:)pulsars:individual(PSR J1740-5340B) (Galaxy:)globular clusters:individual(NGC 6397)