Genesis of the Maoping carbonate-hosted Pb–Zn deposit,northeastern Yunnan Province,China:evidences from geology and C–O–S–Pb isotopes

The Maoping Pb-Zn deposit(~3 Mt Pb+Zn reserves with grades of 12-30 wt%)is one of the largest Pb-Zn deposits in the Sichuan-Yunnan-Guizhou(SYG)metallogenic province,which has contributed a tremendous amount of lead and zinc resources for China.To obtain a further understanding of the sources of ore-forming materials and ore genesis of the deposit,S-Pb isotopes of sulfides and C-O isotopes of ore-stage calcites were systematically collected from representative orebodies at different elevations with a Finnigan MAT-253 mass spectrometer.The calcites separated from the sulfides of the NoⅠand NoⅡorebodies shared identical b13 CPDB values(-5.3 to-0.8‰)andδ18OSMOW values(+14.5 to+21.8‰)with those of the calcites in the SYG region,suggesting that CO2 in regional ore-forming fluids possibly had a homologous C-O source that originated from a ternary mixture of the dissolution of marine carbonate rocks,degassing process of the Emeishan mantle plume,and dehydroxylation of sedimentary organic matter.The No.Ⅰ-1 and No.Ⅰ-2 orebody was hosted in the same strata,but the sulfur source of No.Ⅰ-1 orebody(+13.1 to+19.0‰)with equilibrated sulfur fractionation(δ34Sspbaierite-<δ34Sgalena)and No.Ⅰ-2 orebody(+18.0 to+21.8‰)with sulfur equilibrium fractionation(δ34Sspnaierite>δ34-Sgalena)were different.They were derived from the allopatry thermochemical sulfate reduction(TSR)of overlying Carboniferous sulfates in the ore-hosting strata and local TSR of sulfates in the ore-bearing Upper Devonian Zaige Formation,respectively.The narrow and uniform Pb isotopic ratios of single galena grains collected from sulfides with 206Pb/204Pb of 18.713-18.759,207Pb/204Pb of 15.772-15.776 and 208Pb/204Pb of39.383-39.467 indicate a well-mixed metal source(s)that consist of Proterozoic Kunyang and Huili Group basement rocks and Devonian to Middle Permian ore-hosting sedimentary rocks.Besides,the late Permian Emeishan basalts are difficult to contribute metals for regional Pb-Zn mineralization despite a closely spatial relationship with the distribution of the Pb-Zn deposit.This is supported by Pb isotopic ratios plotting above the average upper crustal Pb evolution curves and staying far away from that of the agecorrected Emeishan basalts.Hence,taking into account of the similarities in tectonic setting,ore-hosting rock,ore assemblage,wall rock alteration,ore-controlling structure,and ore-forming materials and the differences in relationship with regional magmatism,fluid inclusion characteristic and ore grade between the Maoping deposit and typical MVT Pb-Zn deposit,the ore genesis of the Maoping deposit should be an MVT like Pb-Zn deposit.

Charge-state populations for the neon-XFEL system

The interaction between neon and x-ray free-electron lasers with different laser parameters is systematically studied by solving a set of coupled rate equations. As an example, the evolution of 1s^12 s^22 p^6 configuration is given under different incident photon numbers, pulse widths, and photon energies. We have also determined all of the charge-state populations as a function of three laser pulse parameters by averaging over time. The result shows that the variations of these charge-state populations demonstrate a pattern when the pulse width is shorter than 10 fs: some of the charge-states decrease rapidly,while the others rise but remain relatively constant for pulse width larger than 10 fs. The variation of the average charge with three parameters has also obtained. The average charge decreases for a pulse width shorter than 10 fs but remains basically unchanged for a pulse width longer than 10 fs.

Effects of Grape Seeds and Tea Polyphenols on Serum Enzymatic Indices of Finless Eels ( Monopterus albus )

[Objectives]This study was conducted to investigate the possibility of adding grape seeds and tea polyphenols to improve the health of finless eels(Monopterus albus).[Methods]Twelve cages were selected in the same water body and divided into 4 groups,each with 3 parallel groups.The control group was fed with common finless eel feed,and the experimental groups were fed with feed supplemented with grape seeds,tea polyphenols,and grape seed-tea polyphenol compound(with a ratio of grape seeds to tea polyphenols at 1∶1),respectively.The feeding amount of each additive was 1%.The experiment was carried out by feeding medicated feed for 3 d and ordinary feed for 3 d,that is,alternately feeding medicated feed and ordinary feed.The experiment lasted for 18 d.[Results]Six serum enzymatic indices were detected after the breeding.The results showed that compared with the control group,the three groups of samples had a certain protective effect on the liver in terms of liver function indices.In terms of immunity evaluation,the tea polyphenol group and the grape seed-tea polyphenol complex group could increase the immunity of eels to varying degrees.In terms of antioxidant capacity,all three groups of samples could increase the body's antioxidant capacity.The results of this study showed that adding tea polyphenols and grape seeds to the feed simultaneously could effectively protect the liver of fish,and simultaneously enhance their antioxidant and non-specific immune functions.[Conclusions]This study provides a reference for the application of the two Chinese herbal medicines,grape seeds and tea polyphenols,in finless eel farming.

Study on Integration Management and Control System of Port Cranes

This paper proposes the design scheme of Integration Management and Control System (IMCS) using the integration and optimization design theory of port cranes’ management and control system based on Enterprise Resource Planning (ERP), Manufacturing Execution System (MES) and Process Control System (PCS). The functions, interface and software design of the three sub-modules of IMCS are presented. Outcomes of this research are being employed to practical port cranes’ operation and management, which eliminates the island phenomenon of cranes’ storage and application conditions between the management and control department. Hence, IMCS makes the integrated automatic port cranes system come true and it significantly improves the core competitiveness of the port.

Isolation and Identification of Aeromonas allosaccharophila from Procambarus clarkii

In order to provide a scientific basis for the control of Aeromonas allosaccharophila from Procambarus clarkii , a dominant strain was isolated from moribund P. clarkii in some farm in Hubei Province, and designated X1. It was preliminarily identified to be A. allosaccharophila through physiological-biochemical test. Further sequence analysis showed that 16S rDNA of this bacterium shared 90% identity with 16S rDNA of A. allosaccharophila , suggesting that it is A. allosaccharophila . Drug sensitivity test showed that isolate X1 was sensitive to doxycycline, cefotaxime, norfloxacin and gentamicin. In animal regression test, the bacterium the same as that from naturally-diseased P. clarkii could be isolated, with the same disease symptoms as well.

Characterization and Mapping of a Salt-Sensitive Mutant in Rice (Oryza sativa L.)

A salt-sensitive mutant designated rice salt sensitive 2 （rss2） was isolated from the M2 generation of the rice cultivar Nipponbare （Oryza sativa L. ssp. japonica） mutagenized with ethyl methanesulfonate （EMS）. This mutant exhibited a greater decrease in salt tolerance with a significant increase in Na＋ content in its shoots. Genetic analysis indicated that the increase in Na＋ in rss2 was controlled by a single recessive gene. Further genome-wide analysis of the linkage map constructed from the F2 population of rss2/Zhaiyeqing 8 （ZYQ8） showed that two quantitative trait loci （QTLs） on chromosomes 1 and 6 were responsible for the Na＋ concentration in shoots, which explained 14.5% and 53.3%, respectively, of the phenotypic variance. The locus on chromosome 1, but not that on chromosome 6, was also detected in the F2 population of Nipponbare/ZYQ8, suggesting that the QTL on chromosome 6 was responsible for the salt sensitivity in rss2. By analyzing the recombination events in 220 mutant individuals of an enlarged mapping population of rss2/ZYQ8, the rss2 locus was precisely mapped to an interval of 605.3 kb between insertion/deletion （InDel） markers IM21962 and IM22567. This finding will facilitate the cloning of the rss2 locus and provide insight into the physiological mechanisms of salt sensitivity in rice.

人际情绪调节量表测评女性罪犯的信度和效度

采用修订中文版人际情绪调节问卷(IERQ)对中国某监狱770名女性罪犯进行问卷调查,对经标准化程序翻译的中文版IERQ进行项目分析、探索性因素分析、验证性因素分析、校标关联度效度分析和信度分析,选择情绪调节困难量表(DERS)和社会支持量表(SSRS)作为校标。结果发现,中文版IERQ问卷包含的4个因子,二阶模型拟合程度良好,量表项目平均分与DERS和SSRS总分的相关系数分别为0.38和0.41,量表的内部一致性信度为0.81,重测信度为0.77。从而可以得出结论,中文版IERQ问卷具有良好的信效度,测量结果符合心理测量学指标,适用于女性罪犯群体。

新冠肺炎疫情下对拘禁性精神障碍罪犯的调查分析

新冠肺炎疫情发生以来,重大公共卫生事件对健康带来的连锁社会反应同样作用于监管场所。以南方某省属监狱罪犯为调查对象,分析疫情前后在押罪犯拘禁性反应的变化及其成因,结合监管改造工作实际,探究应对策略及其效果,以便指导和帮助在押罪犯以良好心理状态顺利度过疫情防控这一特殊的生活事件,确保监管场所的心理环境安全,并为今后应对类似的生活事件积累相关的工作经验。

NUPR1 promotes the proliferation and metastasis of oral squamous cell carcinoma cells by activating TFE3-dependent autophagy

Oral squamous cell carcinoma(OSCC)is the most common type of oral malignancy,and metastasis accounts for the poor prognosis of OSCC.Autophagy is considered to facilitate OSCC development by mitigating various cellular stresses;nevertheless,the mechanisms of autophagy in OSCC cell proliferation and metastasis remain unknown.In our study,high-sensitivity label-free quantitative proteomics analysis revealed nuclear protein 1(NUPR1)as the most significantly upregulated protein in formalin-fixed paraffin-embedded tumour samples derived from OSCC patients with or without lymphatic metastasis.

Proton irradiation assisted localized corrosion and stress corrosion cracking in 304 nuclear grade stainless steel in simulated primary PWR water

Localized deformation and corrosion in irradiated 304 nuclear grade stainless steel in simulated primary water were investigated.The investigation was conducted by comparing the deformation structure,the oxide scale formed at the deformation structure,and their correlation with cracking.The results revealed that increasing the irradiation dose promoted localized corrosion at the slip step and grain boundary,which was primarily attributed to the strain concentration induced by enhanced localized deformation and depletion of Cr at grain boundary.Further,a synergic effect of the enhanced localized deformation and localized corrosion at the slip step and grain boundary caused a higher cracking susceptibility of the irradiated steel.

Corrosion Behavior and Mechanism of Irradiated 304 Nuclear Grade Stainless Steel in High-Temperature Water

Corrosion behavior and mechanism of irradiated 304 nuclear grade stainless steel were studied in simulated pressurized water reactor primary water.The microstructure of the oxide formed on the steel irradiated to different doses over an exposure period range of 25–1500 h was analyzed and compared.It was found that the general and intergranular corrosion rates of the steel were increased with irradiation dose,in correspondence with an evolution of the general oxide and the oxide formed at the grain boundary.Correlation of the oxide evolution with the corrosion kinetics and mechanism has been discussed in detail.

Microstructure Characterization of the Fusion Zone of an Alloy 600-82 Weld Joint

Characterization of the microstructure of the fusion zone of an Alloy 600-82 weld joint was conducted, with focus on the weld residual strain distribution and the comparison of the microstructure of heat affected zone （HAZ） with that of cold worked alloy. Peak of the residual strain was observed to approach to the fusion boundary in HAZ while the strain increased from the top of the weld to the root. Strain distribution in the HAZ was found to be concentrated adjacent to grain boundaries （GBs）, with a peak of approximately three times of that in grain. Further, triple junctions of the GB appear to cause a higher strain concentration than single GBs. The microstructure of HAZ consists of partially tangled dislocations, which is different from slip bands of high density dislocations in cold worked alloy. This may cause a relatively higher intergranular cracking resistance of HAZ due to the difficulty in transferring tangled dislocations to GB in HAZ under deformation.

视听翻译研究的发展与挑战——伊夫·甘比尔教授访谈录

本次访谈讨论了九十年代以来视听翻译研究的发展以及当前面临的挑战,具体包括:欧洲影视翻译协会的建立及其在视听翻译研究发展中所起的作用,在视听翻译研究和培训方面整合学界和行业资源的重要性,技术和新的视听翻译研究模式带来的挑战和机遇,视听翻译研究的研究范围和发展趋势,以及中国视听产品在世界范围内的传播。

Random Copolymers Based on Thieno[3,4-c]pyrrole-4,6-dione and Isoindigo Building Blocks for Polymer Solar Cells

Three random conjugated polymers,RP-TiI,RP-2TiI and RP-TVTiI based on both thieno[3,4-c]pyrrole-4,6-dione and isoindigo units have been synthesized by Stille cross-coupling reaction.The optical and electrochemical properties of new polymers have been investigated.The resulted polymers showed broad absorption spectra and appropriate energy levels for polymer solar cell applications.The bulk heterojunction devices based on the blend of the polymer RP-TiI and PC_(61)BM showed a power conversion efficiency of 1.75%.

Correction to:NUPR1 promotes the proliferation and metastasis of oral squamous cell carcinoma cells by activating TFE3-dependent autophagy

In the process of checking the raw data1,the authors noticed several inadvertent mistakes occurring in Fig.5a,b,c,d,f that need to be corrected after online publication of the article.During the preparation of Fig.5,the representative image showing TFE3 overexpression antagonized the NUPR1 KD-induced inhibition of OSCC cell proliferation and metastasis,were pasted and placed by mistake.The correct results should be as shown below.The authors apologize for these oversights and declare that these corrections do not affect the description,interpretation,or conclusions detailed in the original manuscript.

Direct Electron Transfer from Upconversion Graphene Quantum Dots to TiO_(2) Enabling Infrared Light-Driven Overall Water Splitting

Utilization of infrared light in photocatalytic water splitting is highly important yet challenging given its large proportion in sunlight.Although upconversion material may photogenerate electrons with sufficient energy,the electron transfer between upconversion material and semiconductor is inefficient limiting overall photocatalytic performance.In this work,a TiO_(2)/graphene quantum dot(GQD)hybrid system has been designed with intimate interface,which enables highly efficient transfer of photogenerated electrons from GQDs to TiO_(2).The designed hybrid material with high photogenerated electron density displays photocatalytic activity under infrared light(20 mW cm^(-2))for overall water splitting(H_(2):60.4μmol g_(cat).^(-1)h^(-1)and O_(2):30.0μmol g_(cat).^(-1)h^(-1)).With infrared light well harnessed,the system offers a solar-to-hydrogen(STH)efficiency of 0.80%in full solar spectrum.This work provides new insight into harnessing charge transfer between upconversion materials and semiconductor photocatalysts and opens a new avenue for designing photocatalysts toward working under infrared light.