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Bracelet salt glands of the recretohalophyte Limonium bicolor:Distribution,morphology,and induction

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Journal of Integrative Plant Biology 2023年第4期65卷 950-966页

作者： Boqing Zhao Yingli Zhou Xiangmei Jiao Xi wang baoshan wang Fang Yuan Shandong Provincial Key Laboratory of Plant Stress College of Life SciencesShandong Normal UniversityJi'nan 250014China

Halophytes complete their life cycles in saline *** recretohalophyte Limonium bicolor has evolved a specialized salt secretory structure,the salt gland,which excretes Na+to avoid salt *** *** salt glands consist of 16 cells with four fluorescent foci and four secretory ***,we describe a special type of salt gland at the base of the *** leaf petiole named bracelet salt glands due to their beaded-bracelet-like shape of blue *** salt glands contain more than 16 cells and more than four secretory *** disc secretion measurements and non-invasive micro-test techniques indicated that bracelet salt glands secrete more salt than normal salt glands,which helps maintain low Na+levels at the leaf blade to protect the *** treatment induced bracelet salt gland differentiation,and the developed ones showed no further differentiation when traced with a living fluorescence microscopy imager,even though new salt gland development and leaf expansion were *** revealed a NAC transcription factor gene that participates in bracelet salt gland development,as confirmed by its genome editing and overexpression in *** findings shed light on bracelet salt gland development and may facilitate the engineering of salt-tolerant crops.

关键词： bracelet salt gland 6‐BA differentiation NAC transformation

Increased salinity and groundwater levels lead to degradation of the Robinia pseudoacacia forest in the Yellow River Delta

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Journal of Forestry Research 2022年第4期33卷 1233-1245页

作者： Chaoxia Lu Chen Zhao Jing Liu Kailun Li baoshan wang Min Chen Shandong Provincial Key Laboratory of Plant Stress Research College of Life ScienceShandong Normal UniversityJi’nan 250014People’s Republic of China Shandong Provincial Key Laboratory of Crop Genetic Improvement Ecology and PhysiologyShandong Academy of Agricultural SciencesJi’nan 250100People’s Republic of China

Forest degradation is a worldwide problem,although its causes vary due to geographical and climatic differences and man-made *** recent years,the Robinia pseudoacacia forest in the Yellow River Delta has suffered severe *** causative mechanisms were investigated in the field over two years,and the results show that increased forest degradation was reflected by increased tree mortality,high leaf and soil sodium salt levels and groundwater *** tree diameters decreased,and leaf chlorophyll and soil microbial contents *** discriminate analysis(RDA)showed that degradation of the forest was correlated positively with soil salt content,but negatively with groundwater *** analysis showed that 0.79%–0.95%soil salt content and above 1.20 m groundwater depth caused the death of *** trees due to localized anthropogenic economic activities,such as rice farming,that disrupted the original water–salt *** are recommended to prevent further degradation and restore degraded forests.

关键词： Forest degradation Groundwater depth Robinia pseudoacacia forest Soil salt content The Yellow River Delta

Seismic detections of the 15 February 2013 Chelyabinsk meteor from the dense Chin Array

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Earthquake Science 2016年第4期29卷 221-233页

作者： Lu Li baoshan wang Zhigang Peng Weitao wang Key Laboratory of Seismic Observation and Geophysical Imaging Institute of Geophysics China Earthquake Administration School of Earth and Atmospheric Sciences Georgia Institute of Technology

ChinArray is a dense portable broadband seismic network to cover the entire continental China, and the Phase I is deployed along the north-south seismic belt in southwest China. In this study, we analyze seismic data recorded on the ChinArray following the February 15, 2013 Chelyabinsk （Russia） meteor. This was the largest known object entering the Earth＇s atmosphere since the 1908 Tunguska meteor. The seismic energy radiated from this event was recorded by seismic stations worldwide including the dense ChinAn＇ay that are more than 4000 km away. The weak signal from the meteor event was con- taminated by a magnitude 5.8 Tonga earthquake occur- red ~ 20 min earlier. To test the feasibility of detecting the weak seismic signals from the meteor event, we compute vespagram and perform F-K analysis to the surface-wave data. We identify a seismic phase with back azimuth （BAZ） of 329.7° and slowness of 34.73 s/deg, corre- sponding to the surface wave from the Russian meteor event （BAZ ） 325.97°）. The surface magnitude （Ms） of the meteor event is 3.94 ±0.18. We also perform similar analysis on the data from the broadband array F-net in Japan, and find the BAZ of the surface waves to be 316.61%. With the different BAZs of ChinArray and F-net, we locate the Russian meteor event at 58.80°N, 58.72°E. The relatively large mislocation （-438 km as compared with 55.15°N. 61.41°E by others） may be a result of theweak signals at teleseismic distances.

关键词： ChinArray Russian meteor event F-K analysis

The v-v energy transfer of highly vibrationally excited states (I)──Vibrational quenching of CO(v) by CO_2

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Chinese Science Bulletin 1998年第18期43卷 1536-1541页

作者： wang baoshan GU Yueshu HE Yong KONG Fan’ao Department of Chemistry Shandong UniversityJinan 250100China State Key Laboratory of Molecular Reaction Dynamics Institute of ChemistryBeijing 100080China.

The relaxation of the highly vibrationally excited CO (v=1-8) by CO\-2 is studied by time_resolved Fourier transform infrared emission spectroscopy (TR FTIR). 193 nm laser photolysis of the mixture of CHBr\-3 with O\-2 generates the highly vibrationally excited CO(v) molecules. TR FTIR records the intense infrared emission of CO(v→v-1). The vibrational populations of each level of CO(v) have been determined by the method of spectral simulation. Based on the evolution of the time resolved populations and the differential method, 8 energy transfer rate constants of CO(v=1-8) to CO 2 molecules are obtained: (5.7±0.1), (5.9±0.1), (5.2±0.2), (3.4±0.2), (2.4±0.3), (2.2±0.4), (2.0±0.4) and (1.8±0.6) (10 -14 cm 3·molecule -1·s -1), respectively. A two_channel energy transfer model can explain the feature of the quenching of CO(v) by CO 2. For the lower vibrational states of CO, the vibrational energy transfers preferentially to the υ\-3 mode of CO 2. For the higher levels, the major quenching channel changes to the vibrational energy exchange between CO(v→v-1) and the υ\-1 mode of CO 2.

关键词： time_resolved IR spectrum highly vibrational excited state vibrational energy transfer.

ETAS Model Analysis on the Chang Island Earthquake Swarm in Shandong Province,China

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Earthquake Research in China 2019年第4期33卷 617-631,I0002页

作者： wang Peng wang baoshan Institute of Geophysics China Earthquake AdministrationBeijing 100081China Shandong Earthquake Agency Jinan 250102China School of Earth and Space Sciences University of Science and Technology of ChinaHefei 230026China

Influenced by the layout of seismic network and the location of earthquakes,earthquake catalogs are often incomplete;such incompleteness of earthquake catalogue directly affects the analysis of sequence activity *** this paper,the GPU-acceleration-based g template matching method is used to scan the continuous waveforms of Chang Island earthquake swarm in Shandong Province from February 9 to August 20,*** total,15,286 earthquakes events were detected,which was more than 6 times compared with those in network catalogue and thus reduced the magnitude of completeness from 1.0 to *** on the intergrated catalogue of earthquakes,the characteristics of Chang Island earthquake swarm were then analyzed using the Epidemic Type Aftershock Sequences(ETAS)*** stochastic components in the ETAS model are used as a proxy for possible earthquake triggered by external forces(fluids).The results show that the proportion of earthquakes triggered by external forces of Chang Island swarm increases gradually(from 31.9%to 63.5%)and then *** latter stage of swarm development is mainly affected by the self-excitation of earthquakes,suggesting that the fluids play an important role in the development of the Chang Island ***,the triggering intensity of fluids to microseismicity is divergent in different periods,which may be related to the process of fluid permeation.

关键词： ETAS model Chang Island swarm Template matching Magnitude of completeness b-value Fluid triggering

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胰腺癌性疼痛介入治疗的研究进展

介入放射学杂志 2024年第7期33卷 801-807页

作者：张婉迪张晓福王宝山郝国君李培永申东峰山西省中医药研究院山西省中医院介入血管科山西太原030000

胰腺癌是一种具有高度侵袭性的肿瘤,嗜神经生长是胰腺癌的重要生物学特点,其对神经的侵犯给患者带来极大的疼痛负担,严重影响患者生存质量和生存意志。世界卫生组织(World Health Organization,WHO)癌痛“三阶梯镇痛原则”是传统治疗癌... 详细信息

胰腺癌是一种具有高度侵袭性的肿瘤,嗜神经生长是胰腺癌的重要生物学特点,其对神经的侵犯给患者带来极大的疼痛负担,严重影响患者生存质量和生存意志。世界卫生组织(World Health Organization,WHO)癌痛“三阶梯镇痛原则”是传统治疗癌性疼痛的治疗方案,但由于其毒副作用明显、疗效差、易成瘾、易耐药以及医师临床用药不规范等因素,无法满足患者病情需要。近年来,随着介人技术的发展以及广泛的临床试验的开展,介入作为癌痛管理的“第四阶梯”,其治疗手段以及各种影像引导方式的发展与应用,如神经毁损术、^(125)I粒子植入术、患者自控镇痛泵技术、鞘内药物输注系统植入术等,临床疗效得到了有力证明,为癌痛患者提供了方便、安全、有效的治疗方式。

关键词：月胰腺肿瘤癌症疼痛神经毁损术 ^(125)I粒子植入术鞘内药物输注系统植入术患者自控镇痛泵技术

Multiple seismological evidences of basin effects revealed by Array of Binchuan(ABC), northwest Yunnan, China

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Earthquake Science 2018年第5期31卷 281-290页

作者： Yihe Xu baoshan wang Weitao wang Bo Zhang Tianwei Sun Key Laboratory of Seismic Observation and Geophysical Imaging Institute of GeophysicsChina Earthquake Administration School of Earth Sciences and Engineering Nanjing University School of Earth and Space Sciences University of Science and Technology of China

Dense array seismology, which is characterized by large number, densely deployed autonomous geophone/seismographs, has received great concerns worldwide recently, especially after the great success of dense array in Long Beach. One of the biggest curiosity is that if the great success in Long Beach is replicable in China. Hence, we analyze the seismic records from a dense array in Binchuan basin, Yunnan province, which consists of three-component short-period seismographs of three most common domestic models. The Binchuan basin is located near the intersection between the Chenghai-Binchuan fault and the Red River fault,with the latter being the major fault accommodating significant tectonic deformation resulting from eastern extrusion of the Tibetan plateau. Both faults pose serious seismic threats to local residents in Binchuan basin. Basinrange differences, faults, local earthquakes, and a Fixed Airgun Seismic Transmitting Station(FASTS), make the Binchuan basin a perfect experiment site for dense array experiment. The array is named Array of Binchuan(ABC)and the main target is imaging the shallow crustal structure,especially the structure of the basin. To examine the monitoring capability of ABC, we analyze the seismograms to check if they can reveal the basin, the most significant geological feature in the area. Power spectral density analysis,travel time and amplitude analysis of FASTS signals, and amplitude analysis of earthquakes and noise cross-correlation functions are used in the analysis. All the results show correlation with the basin and clear difference between basin and non-basin area. Therefore, the preliminary results support that the ABC has the potential to provide constraints on local structures.

关键词： Array of Binchuan dense array basin effects

Imaging 3-D crustal P-wave velocity structure of western Yunnan with bulletin data

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Earthquake Science 2012年第2期25卷 151-160页

作者： Jing Huang Xuejun Liu Youjin Su baoshan wang Key Laboratory of Seismic Observation and Geophysical Imaging Institute of GeophysicsChina Earthquake AdministrationBeijing 100081China Earthquake Administration of Yunnan Province Kunming 650024China

Western Yunnan is a region with intensive tectonic activity and serious earthquake risk. It is of significant importance to study three dimensional crustal structure of this region to understand the tectonic setting and disaster mechanism. Densification and digitalization of seismic networks in this region provides an opportunity to study the velocity structure with bulletin data. In this study, we collect P-wave data of 10 403 regional earthquakes recorded by 79 seismic stations from January 2008 to December 2010. In addition to first arrivals data （Pg with epieentral distance less than 200 km and Pn）, the Pg （or P） data with epicentral distance more than 200 km are also considered as later direct arrivals in the tomographic inversion. We also compare the quantity and the quality of the seismic data before 2010 and after 2010. The test results show that adding the follow-up Pg phase can effectively improve the inversion ability of crustal imaging, and quantity and the data quality are significantly improved since 2010. The tomographie results show that：（1） The Honghe fault zone, which is the major fault systems in this region, may cut through the entire crust, and the velocity contrasts between two sides at lower crust beneath the Honghe fault are estimated at higher than 10%, while the velocity difference below Nujiang fault zone extends only in the upper crust; （2） Most of the earthquakes in the region occurred at the interface of high-velocity media and low-velocity media, i.e., the areas with high velocity gradient, which has been validated in other areas.

关键词： regional earthquake 3-D velocity structure later phase Yunnan region

Earthquake Research Advances(ERA)opens a new era in earthquake research

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Earthquake Research Advances 2021年第1期1卷 1-2页

作者： baoshan wang Zhigang Peng School of Earth and Space Sciences University of Science and Technology of ChinaChina School of Earth and Atmospheric Sciences Georgia Institute of TechnologyUSA

In May 2021,two strong earthquakes occurred in west and southwest China,causing ground cracks,building damages,along with human *** events remind us again,that earthquakes and earthquakeinduced disasters always intertwine with human *** the losses caused by earthquakes and subsequent hazards(e.g.,landslides,tsunamis)is one of the primary goals that geoscientists keep striving for.

关键词： earthquake southwest Earthquake