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Spatial heterogeneity of fine root biomass of Pinus massoniana forests in the Three Gorges Reservoir Area, China

Forestry Studies in China 2013年第1期15卷 13-23页

作者： Rui-Li WANG Rui-Mei CHENG wen-fa xiao xiao-Hui FENG Ze-Bin LIU xiao-Rong WANG Zhi-Bo WANG Key Laboratory of Forest Ecology and Environment of State Forestry Administration Research Institute of Forest Ecology Environment and Protection Chinese Academy of Forestry Center for Agricultural Resources Research Institute of Genetics and Developmental Biology Chinese Academy of Sciences Hubei Forestry Academy Research Institute of Forest Resource Information Techniques Chinese Academy of Forestry

Environmental heterogeneity is a constant presence in the natural world that significantly affects plant behavior at a variety of levels of complexity. In order to estimate the spatial pattern of fine root biomass in the Three Gorges Reservoir Area, the spatial heterogeneity of fine root biomass in the upper layer of soils （0-10 cm） in three Mas- son pine （Pinus massoniana） stands in the Three Gorges Reservoir Area, China, was studied in 30 m x 30 m plots with geostatistical analysis. The results indicate that 1） both the live and dead fine root biomass of stand 2 were less than those of other stands, 2） the spatial variation of fine roots in the three stands was caused together by structural and ran- dom factors with moderate spatial dependence and 3） the magnitude of spatial heterogeneity of live fine roots ranked as： stand 3 〉 stand 1 〉 stand 2, while that of dead fine roots was similar in the three stands. These findings suggested that the range of spatial autocorrelation for fine root biomass varied considerably in the Three Gorges Reservoir Area, while soil properties, such as soil bulk density, organic matter and total nitrogen, may exhibit great effect on the spatial distribution of fine roots. Finally, we express our hope to be able to carry out further research on the quantitative relation- ship between the spatial heterogeneous patterns of plant and soil properties.

关键词： spatial heterogeneity geostatistics Pinus massoniana fine root biomass Three Gorges Reservoir Area

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某偏心框架混合减震结构弹性与弹塑性动力时程分析

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工程抗震与加固改造 2017年第4期39卷 11-17,54页

作者：黄文成张永山郭镪文肖发平广州大学土木工程学院广东广州510006

针对某工程的位移比和位移角超限等问题,本文采用消能减震技术对其进行振动控制,具体方案为结构安装屈曲约束支撑和黏滞阻尼器。对原结构和减震结构进行了弹性和弹塑性动力时程分析,对比了两种结构体系小震、大震下的计算分析结果,并在... 详细信息

针对某工程的位移比和位移角超限等问题,本文采用消能减震技术对其进行振动控制,具体方案为结构安装屈曲约束支撑和黏滞阻尼器。对原结构和减震结构进行了弹性和弹塑性动力时程分析,对比了两种结构体系小震、大震下的计算分析结果,并在罕遇地震作用下对原结构和减震结构进行了抗震性能评估。结果表明:屈曲约束支撑和黏滞阻尼器有效控制了结构的扭转效应和层间位移角,改善了结构的塑性损伤情况,从而提高了结构在地震作用下的抗震性能。

关键词：偏心框架结构扭转效应屈曲约束支撑黏滞阻尼器弹塑性分析

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Cerebral fat embolism following autologous fat injection in facial reconstruction:A case report

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World Journal of Clinical Cases 2025年第2期13卷 50-58页

作者： Xiu-Ying Chen fa Shen Chang Cheng Yu-Han Wang wen-Chao Cheng De-Zhi Yuan wen Huang Department of Neurology Chongqing Emergency Medical CenterChongqing University Central HospitalChongqing 400000China Department of Neurology Xinqiao HospitalThe Army Medical University(Third Military Medical University)Chongqing 400000China

BACKGROUND Autologous fat injection in facial reconstruction is a common cosmetic *** cerebral fat embolism(CFE)as a complication is rare,it carries serious health *** SUMMARY We present a case of a 29-year-old female patient who developed acute CFE following facial fat filling *** the surgery,the patient experienced symptoms including headache,nausea,vomiting,and difficulty breathing,which was followed by neurological symptoms such as slurred speech and left-sided *** physical examination and auxiliary investigations,including blood tests,head and neck computed tomography angiography,and cranial magnetic resonance diffusion-weighted imaging,were performed upon *** clinical diagnosis was acute cerebral embolism following facial fat filling *** included measures to improve cerebral circulation,dehydration for intracranial pressure reduction,nutritional support,and rehabilitation therapy for left limb *** patient showed a significant improvement in symptoms after 2 weeks of *** recovered left limb muscle strength to grade 5,had clear speech,and experienced complete relief of *** Our case highlights the potential occurrence of severe complications in patients undergoing fat injection in facial *** prevent these complications,plastic surgeons should enhance their professional knowledge and skills.

关键词： Cerebral fat embolism Mechanical thrombectomy Thrombolysis Steroid therapy Symptomatic treatment Case report

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免疫亲和层析法纯化单链尿激酶型纤溶酶原激活剂

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生物工程学报 2002年第3期18卷 356-359页

作者：高丽华胡显文吴清法肖成祖胥照平张正光军事医学科学院生物工程研究所北京100071

The only difference of primary structure between single-chain prourokinase (pro-UK or scu-PA) and two-chain urokinase (UK or tcu-PA) is the cleavage of a single peptide bond (Lys158-Ile159) and transform scu-PA into its active two-chain form. A 13-peptide (Thr-Leu-Arg-Pro-Arg-Phe-Lys-Ile-Ile-Gly- Gly-Glu-Cys), which spans the cleavage peptide bond, was synthesized and linked to KLH (Keyhole limpet hemocyanin). The Balb/c mice were immunized by the conjugated protein with proper adjuvant. According to the Kohler and Milstein’s methods, a hybridoma cell line G7 secreting monoclonal antibody specific for scu-PA was obtained. The anti-scu-PA McAb, purified from the supernatant of porous microcarrier hybridoma cell culture, was conjugated to CNBr-activated Sepharose 4B to prepare an immuno-affinity chromatography column. The u-PA was purified only by this affinity column from the supernatant of cultivating the u-PA-producing recombinant CHO cell, the u-PA recovery ratio is 90.4%, the purification factor was about 50, with the specific activity of 1.2×10 5IU/mg, the scu-PA ratio in the u-PA product was 96.3%. Compared to immuno-affinity chromatography, the 3-step process for purifying u-PA (cation-exchange co-lumn, gel filtration column and benzamidine affinity column)has a u-PA recovery ratio of about 65%, with a specific activity of 1.0×10 5IU/mg, and an scu-PA ratio of about 90%. These results showed that immuno-affinity chromatography is simple to recover u-PA and effective to separate scu-PA from tcu-PA.

关键词：单克隆抗体杂交瘤细胞培养多孔微载体免疫亲和层析法纯化单链尿激酶型纤溶酶原激活剂

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Synthesis,Crystal Structure and Fluorescent Properties of New Layered Thiophosphate Cs_(2)Ga_(3)PS_(8)

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Chinese Journal of Structural Chemistry 2021年第10期40卷 1271-1276页

作者： CHEN wen-fa LIU Bin-wen JIANG xiao-Ming GUO Guo-Cong State Key Laboratory of Structural Chemistiy Fujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhou 350002China University of Chinese Academy of Sciences Beijing 100190China

A new quaternary metal thiophosphate,Cs_(2)Ga_(3)PS_(8),in triclinic P1^(-) space group has been successfully synthesized by a reactive-flux *** structural framework is derived from well-known AM^(Ⅲ)M^(Ⅳ)Q_(4) (A=alkali metal;M^(Ⅲ)=Al,Ga,In;M^(Ⅳ)=Si,Ge,Sn;Q=S,Se) system and composed of two-dimensional ^(2)∞[Ga_(3)PS_(8)]^(2-) layers separated by Cs^(+).The compound exhibits a wide band gap of 3.08 eV and congruent-melting behavior with melt point of 645℃.Interestingly,Cs_(2)Ga_(3)PS_(8) exhibits a broad photoluminescent emission band at 420 nm upon excitation at 295 ***,electronic structure calculations indicate that Cs_(2)Ga_(3)PS_(8) is a direct band gap compound and its luminescent process can be mainly ascribed to electron transfer from the S-3p and Ga-4p states to S-3p and P-3p.

关键词： chalcogenide thiophosphate crystal structure solid-state phase synthesis

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Influences of elevated CO2 and pest damage on the allocation of plant defense compounds in Bt-transgenic cotton and enzymatic activity of cotton aphid

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Insect Science 2011年第4期18卷 401-408页

作者： Gang Wu fa-Jun Chen Neng-wen xiao Feng Ge State Key Laboratory of Integrated Management of Pest Insects and Rodents Institute of Zoology Chinese Academy of Sciences Beijing Coflege of Plant Sciences and Technology Huazhong Agricultural University Wuhan Department of Entomology Nanjing Agricultural University Nanjing Chinese Research Academy of Environmental Sciences Beijing China

Plant allocation to defensive compounds by elevated CO2-grown nontransgenic and transgenic Bt cotton in response to infestation by cotton aphid, Aphis gossypii （Glover） in open-top chambers under elevated CO2 were studied. The results showed that significantly lower foliar nitrogen concentration and Bt toxin protein occurred in transgenic Bt cotton with and without cotton aphid infestation under elevated CO2. However, significantly higher carbon/nitrogen ratio, condensed tannin and gossypol were observed in transgenic Bt cotton ＂GK-12＂ and non-transgenic Bt cotton ＇Simian-3＇ under elevated CO2. The CO2 level and cotton variety significantly influenced the foliar nitrogen, condensed tannin and gossypol concentrations in the plant leaves after feeding by A. gossypii. The interaction between CO2 level x infestation time （24 h, 48 h and 72 h） showed a significant increase in cotton condensed tannin concentrations, while the interaction between CO2 level x cotton variety significantly decreased the true choline esterase （TChE） concentration in the body ofa. gossypi. This study exemplified the complexities of predicting how transgenic and non-transgenic plants will allocate defensive compounds in response to herbivorous insects under differing climatic conditions. Plant defensive compound allocation patterns and aphid enzyme changes observed in this study appear to be broadly applicable across a range of plant and herbivorous insect interactions as CO2 atmosphere rises.

关键词： Aphis gossypii condensed tannin elevated CO2 gossypol plant allocation,transgenic Bt cotton

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朱琏针刺兴奋法治疗肌张力低下型脑性瘫痪临床研究

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上海针灸杂志 2017年第3期36卷 273-275页

作者：郑法文潘小霞陈丽容陈明明南宁市第一人民医院南宁530022 南宁市中西医结合医院南宁530012

目的观察朱琏针刺兴奋法一型手法治疗肌张力低下型脑性瘫痪的临床疗效。方法将60例年龄为9~59个月的肌张力低下型脑性瘫痪患者随机分为治疗组和对照组,每组30例。治疗组采用朱琏针刺兴奋法一型手法治疗,对照组采用穴位注射维生素B1、B1... 详细信息

目的观察朱琏针刺兴奋法一型手法治疗肌张力低下型脑性瘫痪的临床疗效。方法将60例年龄为9~59个月的肌张力低下型脑性瘫痪患者随机分为治疗组和对照组,每组30例。治疗组采用朱琏针刺兴奋法一型手法治疗,对照组采用穴位注射维生素B1、B12注射液治疗。两组均每日治疗1次,5次为1个疗程。治疗10个疗程后,分别采用粗大运动功能评定量表(GMFM-88)对两组患者治疗前后运动功能进行评定。结果两组治疗后GMFM-88评分与同组治疗前比较,差异均具有统计学意义(P<0.05)。治疗组治疗后GMFM-88评分与对照组比较,差异具有统计学意义(P<0.05)。结论朱琏针刺兴奋法是一种治疗肌张力低下型脑性瘫痪的有效方法。

关键词：针刺疗法脑性瘫痪水针朱琏针刺兴奋法粗大运动功能评定量表

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Climate-growth relationship stability of Picea crassifolia on an elevation gradient,Qilian Mountain,Northwest China

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Journal of Mountain Science 2016年第4期13卷 734-743页

作者： LEI Jing-pin FENG xiao-hui SHI Zheng BAI Deng-zhong xiao wen-fa Research Institute of Forestry Chinese Academy of Forestry Co-Innovation Center for Sustainable Forestry in Southern China Nanjing Forestry University The Center for Agricultural Resources Research Institute of Genetics and Developmental Biology of Chinese Academy of Sciences Research Institute of Forest Ecology Environment and ProtectionChinese Academy of Forestry

Climate affects Picea crassifolia growth and climate change will lead to changes in the climate–growth relationship(i.e., the "divergence" phenomenon). However, standardization methods can also change the understanding of such a relationship. We tested the stability of this relationship by considering several variables: 1) two periods(1952–1980 and 1981–2009), 2) three elevations(2700, 3000, and 3300 m), and 3) chronologies detrended using cubic splines with two different flexibilities. With increasing elevation, the climatic factor limiting the radial growth of Picea crassifolia shifted from precipitation to temperature. At the elevation of 2700 m, the relationship between radial growth and mean temperature of the previous December changed so that the more flexible spline had a greater precipitation signal. At the elevation of 3000 m, positive correlation of radial growth with mean temperature and precipitation in September of the previous year became more significant. At the elevation of 3300 m, positive correlation between radial growth and precipitation of the currentsummer and the previous spring and autumn was no longer significant, whereas the positive correlation between radial growth and temperature of the current spring and summer strengthened. The detrending with the most flexible spline enhanced the precipitation signal at 2700 m, while that with the least flexible spline enhanced the temperature signal at 3300 m. All results indicated that the divergence phenomenon was affected by the climatic signals in the chronologies and that it was most dependent on the detrending method. This suggests it is necessary to select a suitable spline bootstrap for studies of growth divergence phenomena.

关键词： Climate change Detrending method Divergence problem Tree ring

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The centrosymmetric to non-centrosymmetric transformation induced by alkaline-earth cations producing infrared nonlinear optical AeMn_(6)Ga_(6)S_(16)(Ae=Ca,Sr)

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Science China Chemistry 2024年第9期67卷 2941-2948页

作者： Yang-Ping Zhang Shao-Min Pei wen-fa Chen Bin-wen Liu xiao-Ming Jiang Guo-Cong Guo State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhou 350002China Fujian Science&Technology Innovation Laboratory for Optoelectronic Information of China Fuzhou 350108China School of Physical Science and Technology Shanghai Tech UniversityShanghai 201210China

Non-centrosymmetric(NCS)structure is an indispensable prerequisite for second-order nonlinear optical(NLO)***,the mainstream approach for designing new NCS structures still relies on chemical substitution,necessitating an urgent infusion of fresh *** this work,two isomorphic sulfides AeMn_(6)Ga_(6)S_(16)(Ae=Ca,1;Sr,2)are afforded by modifying the skeleton of centrosymmetric(CS)Mn_(2)Ga_(2)S_(5) via introducing strong electropositive alkaline-earth ***,the incorporation of Ca^(2+)/Sr^(2+)cations allows the elementary[MnGaS_(9)]_(∞)chains to reconfigure into bumpy[MnS_(6)]-[GaS_(4)]layers in a new engagement manner,thus enabling the conversion from CS to NCS *** modifications cause not only strong second-harmonic generation(SHG)responses(~1.5×benchmark AgGaS_(2)@1,700 nm),but also significantly feasible bandgaps(2.60-2.64 e V)compared to the sulfide Mn_(2)Ga_(2)S_(5)(1.36 e V),which ultimately facilitate ultrahigh laser-induced damage thresholds(4.4-6.6×AgGaS_(2)@1,064 nm for compounds 1 and 2).The present study offers an ingenious approach for the transformation of CS to NCS structure.

关键词： second-harmonic generation non-centrosymmetrical structure NLO functional motif solid-state method

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Perforating and ophthalmic artery variants from the anterior cerebral artery:Two case reports

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World Journal of Clinical Cases 2023年第18期11卷 4392-4396页

作者： Zhi-xiao Mo wen Li De-fa Wang Department of Neurosurgery Qinghai Provincial People's HospitalXining 810007Qinghai ProvinceChina Department of Neurosurgery The First Affiliated Hospital of Soochow UniversitySuzhou 215006Jiangsu ProvinceChina Department of Neurosurgery Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese MedicineSuzhou 215006Jiangsu ProvinceChina

BACKGROUND The diagnosis and therapy during surgery depend largely on a full account of anatomic *** from regular structures,the common,less common or even uncommon anatomic variations are critical for procedural *** is especially true during craniocerebral microsurgery,where small vascular variations can affect the final surgical results and patient *** SUMMARY Herein,two rare variations concerning the A1(horizontal)segment of anterior cerebral artery(ACA1)were *** enabled the communication between perforating branch of ACA1 and dural artery of anterior skull base,which was discovered during *** other was ophthalmic artery(OA)originating from ACA1,shown on digital *** In this study,we found two rare anatomical *** was an abnormal OA originated from the anterior communicating *** other was a perforating branch of the A1 segment of the anterior cerebral artery,which communicated with meningeal vessels in the anterior skull *** finding is of great significance for the treatment of anterior communicating artery aneurysm or in other anterior skull base surgery.

关键词： Microsurgical anatomy Arterial variations Ophthalmic artery Perforating branches Case report

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