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Seed and Wasp Production in the Mutualism of Figs and Fig Wasps 被引量:1
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作者 YaoJin-yan ZhaoNan-xian +3 位作者 ChenYi-zhu JiaXiao-cheng DengYuan YuHui 《Forestry Studies in China》 CAS 2005年第1期25-28,共4页
Figs (Moracea: Ficus) and fig wasps (Hymenoptera: Chlocloids: Agaonideae) depend on each other to complete their reproduction. Monoecious fig species and their pollinating wasps are in conflict over the use of fig ov... Figs (Moracea: Ficus) and fig wasps (Hymenoptera: Chlocloids: Agaonideae) depend on each other to complete their reproduction. Monoecious fig species and their pollinating wasps are in conflict over the use of fig ovaries which can either produce one seed or one wasp. From observation on Ficus virens Ait., we showed that female flowers with outer layer of ovaries (near to the wall of syconium) had no significant difference from that with inner and interval layer of ovaries (near to the syconium cavity), in which most seeds and wasps were produced. This meant that fig tree provided the same potential resource for seed and wasps production. Observation indicated that there was usually only one foundress in syconium at female flower phase and no com- petition pollinators. Measurement of the style length of female flowers and the ovipositor of pollinators indicated that most ovaries could be reached by pollinator’s ovipositor. However, at the male flower phase, production of seeds was significantly more than that of wasps including non-pollinating wasps but there was no significant difference between seed and pollinating wasp production when without non-pollinating wasps produced. This result indicated that non-pollinating wasps competed ovaries not with seeds but with pollinating wasps for ovipositing. Bagged experiment showed that the sampling fig species was not self-sterile which was important for figs and wasps to survive bad season. Seed production in self-pollinated figs was not significantly different from total wasps in- cluding non-pollinating ones. This might be related with the weaker competition among wasps since bagged figs were not easy to reach by wasps from outside. 展开更多
关键词 FICUS Ficus wasp mutualism conflicts seed and wasp production Seed and Wasp Production in the Mutualism of figs and Fig Wasps Yao Jin-yan1 2 Zhao Nan-xian1 Chen Yi-zhu1* Jia Xiao-cheng1 2 Deng Yuan1 2 Yu Hui1 2 1South China Botanical Garden Chinese Academy of Sciences Guangzhou 510650 P. R. China 2Graduate School of the Chinese Academy of Sciences Beijing 100039 P. R. China ABSTRACT figs (Moracea: Ficus) and fig wasps (Hymenoptera: Chlocloids: Agaonideae) depend on each other to complete their reproduction. Monoecious fig species and their pollinating wasps are in conflict over the use of fig ovaries which can either produce one seed or one wasp. From observation on Ficus virens Ait. we showed that female flowers with outer layer of ovaries (near to the wall of syconium) had no significant difference from that with inner and interval layer of ovaries (near to the syconium cavity) in which most seeds and wasps were produced. This meant that fig tree provided the same potential resource for seed and wasps production. Observation indicated that there was usually only one foundress in syconium at female flower phase and no com- petition pollinators. Measurement of the style length of female flowers and the ovipositor of pollinators indicated that most ovaries could be reached by pollinator’s ovipositor. However at the male flower phase production of seeds was significantly more than that of wasps including non-pollinating wasps but there was no significant difference between seed and pollinating wasp production when without non-pollinating wasps produced. This result indicated that non-pollinating wasps competed ovaries not with seeds but with pollinating wasps for ovipositing. Bagged experiment showed that the sampling fig species was not self-sterile which was important for figs and wasps to survive bad season. Seed production in self-pollinated figs was not significantly different from total wasps in- cluding non-pollinating
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BOOK NEWS CHINA'S ENERGY DEVELOPMENY REPORT (1997)1997,260 PP.,10 FIGS.,147 TABS.,16K,(Contributions to Economics)ISBN 7-80118-479-3iF.458, 被引量:1
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《Electricity》 1997年第3期49-49,共1页
关键词 PP NEWS BOOK NEWS CHINA’S ENERGY DEVELOPMENY REPORT Contributions to Economics)ISBN 7-80118-479-3iF.458 figs
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Quality retention and delay postharvest senescence of figs(Ficus carica L.)using 1-methylcyclopropene and modified atmosphere packaging during cold storage 被引量:3
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作者 Cailian Wang Jiaming Du +5 位作者 Dehua Hou Xiaohong Guo Qianting Liu Linwen Liu Yu Fangb Liping Kou 《Food Bioscience》 SCIE 2023年第3期2256-2265,共10页
The perishable and short shelf-life characteristics of figs result in nutrient loss and fruit waste.The application of 1-methylcyclopropene(1-MCP)and modified atmosphere packaging(MAP)is effective strategy for fruit p... The perishable and short shelf-life characteristics of figs result in nutrient loss and fruit waste.The application of 1-methylcyclopropene(1-MCP)and modified atmosphere packaging(MAP)is effective strategy for fruit pres-ervation.In this study,1-MCP and MAP were employed to inhibit figs decay and postharvest senescence during storage.Three treatments were evaluated,including the COM(untreated in commercial packaging),MAP(sealed in 4081 mL/m^(2)·d·atm oxygen permeability bags),and treatment with 1-MCP and MAP(treated with 1.5μL/L 1-MCP and sealed in 4081 mL/m^(2)·d·atm oxygen permeability bags).Each treatment consisted of three replicates with 72 figs per replicate.Results indicated that treatment with 1-MCP and MAP inhibited fig decay,softening,and weight loss significantly,and changes in O_(2)and CO_(2)partial pressures.1-MCP and MAP also effectively retained the higher contents of total phenol,total flavonoid,ascorbic acid and glutathione in figs,and increased activities of ascorbate peroxidase,peroxidase,superoxide dismutase and catalase.The production of superoxide anion(O_(2)^(-)·),and hydrogen peroxide(H_(2)O_(2))in figs was prevented,and color were retained in 1-MCP and MAP treatment.Moreover,the analysis of volatile components indicated that 1-MCP and MAP improved the flavor of figs during storage and reduced the loss of aroma compounds in figs.Therefore,treatment with 1-MCP and MAP significantly extended storage life of figs. 展开更多
关键词 FIG 1-Methylcyclopropene Modified atmosphere packaging QUALITY SENESCENCE Volatile compounds
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新周期规则演变下2025竞技健美操世界杯男单前三名动作选编分析
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作者 李序 袁毅 谭佳俊 《体育师友》 2025年第5期23-27,50,共6页
运用文献资料法、对比分析法和数理统计法,解析FIG 2022-2024版与2025-2028版竞技健美操规则差异,并结合2025世界杯男单前三名成套动作进行实证研究。结果表明:(1)规则核心变革:团体项目成套时长缩短5秒;女子运动员强制要求展示第7类难... 运用文献资料法、对比分析法和数理统计法,解析FIG 2022-2024版与2025-2028版竞技健美操规则差异,并结合2025世界杯男单前三名成套动作进行实证研究。结果表明:(1)规则核心变革:团体项目成套时长缩短5秒;女子运动员强制要求展示第7类难度;难度动作总数上限增加,限制难度与技巧组合仅允许使用1次。(2)男单适应性策略:难度选编延续上周期高价值动作;恢复依柳辛动作的使用;单套难度使用量下降至,艺术扣分项增加3项。(3)项目发展导向:难度精简与艺术评判细化推动竞技健美操向“难度效率化”与“艺术标准化”转型,降低主观评判偏差,促进项目多元化发展。 展开更多
关键词 竞技健美操 FIG规则 难度动作选编 规则迭代 男单 依柳辛 去体操化
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Prevalence and Molecular Diagnosis of Viruses Infecting Fig Trees in Saudi Arabia
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作者 Muhammad Zaman Mahmoud A.Amer +4 位作者 Muhammad Amir Zaheer Khalid Muhammad Taimoor Shakeel Ibrahim M.Al-Shahwan Mohammed A.Al-Saleh 《Phyton-International Journal of Experimental Botany》 2025年第3期897-910,共14页
The common fig(Ficus carica L.),Moraceae family,is a commonly grown fruit tree in the Mediterranean region.Fig mosaic disease(FMD)poses a substantial threat to Saudi Arabia’s fig-producing economy.A survey was conduc... The common fig(Ficus carica L.),Moraceae family,is a commonly grown fruit tree in the Mediterranean region.Fig mosaic disease(FMD)poses a substantial threat to Saudi Arabia’s fig-producing economy.A survey was conducted during the two seasons of 2021 and 2022 on fig trees,displaying various fig mosaic disease symptoms.A total of 200 fig leaves and fruit samples were collected from various governorates in several Regions of Saudi Arabia including Riyadh,Tabuk,Hail,Qassim,Al-Jouf,Makkah,Jazan,Al-Madinah,Asir,and Northern Borders.These samples were tested by reverse transcription polymerase chain reaction(RT-PCR)with specific pairs of primers to assess the existence of Fig mosaic virus(FMV),Fig leaf mottle-associated virus 1(FLMaV-1),Fig leaf mottle-associated virus 2(FLMaV-2),Fig mild mottle-associated virus(FMMaV)and Fig fleck-associated virus(FFkaV).The results indicate that four viruses were found in mixed infections and tested positive.FMV was detected with a high infection rate of 46%followed by FLMaV-2 with an infection rate of 20%,FMMaV with an infection rate of 16%,and FLMaV-1 with an infection rate of 7%,respectively,while FFkaV was negative in all tested samples.Sequencing and phylogenetic analysis results showed that the FMV isolates shared 90.3%similarity with other FMV isolates,particularly those from Bosnia and Herzegovina(KU198368).While FLMaV-1 showed 92.5%similarity with the reference isolate FLMaV-1(KX397035),the isolates of FLMaV-2 exhibited 94.7%similarity with reference FLMaV-2 isolate(FN687742),and the isolate of FMMaV showed 94%similarity with reference FMMaV isolate(MG242131)based on sequence comparison.According to the RT-PCR results,FMV was effectively identified in all five fig varieties(Al Faiz Yellow,Asali,Brown Turkey,Iraqi,and Kaab Al-Ghazal).Contrarily,none of these varieties had FLMaV-1,FLMaV-2,or FMMaV.This study investigates the occurrence and economic impact of the viruses that infect fig trees in Saudi Arabia.This suggests that FMV is the primary virus infecting these fig varieties and there is no co-infection with the other tested viruses.These findings underscore the urgent need for implementing region-specific management strategies,such as breeding resistant cultivars,enforcing phytosanitary measures to limit virus spread,and prioritizing vector control to mitigate the economic impact of FMD on Saudi Arabia’s fig industry. 展开更多
关键词 FIG FMD viruses GRAFTING RT-PCR SEQUENCING
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Investigating Drought Resilience in Fig Cultivars:A Comprehensive Study of Leaf Structural and Functional Characteristics
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作者 Nouha Haoudi Lahcen Hssaini +3 位作者 Jamila Bahhou Abderrahim Bentaibi Hicham Aboumadane Rachid Razouk 《Phyton-International Journal of Experimental Botany》 2025年第6期1857-1877,共21页
This study was carried out to assess plasticity to drought of 30 adult fig cultivars,based on a screening of leaf structural and functional traits under sustained deficit irrigation,corresponding to 60%of crop evapotr... This study was carried out to assess plasticity to drought of 30 adult fig cultivars,based on a screening of leaf structural and functional traits under sustained deficit irrigation,corresponding to 60%of crop evapotranspiration.All trees,three per cultivar,are planted in an ex-situ collection in Sais plain,northern Morocco.The measurements concerned leaf area,blade thickness,trichomes density,trichome hair length,stomatal density,stomatal dimensions,stomatal area index,chlorophyll concentration index,relative water content,stomatal conductance,leaf temperature,water loss in detached leaves,cuticular wax content,proline content,total phenolic compounds,and total soluble sugars.The ranking of cultivars regarding drought tolerance was established based on a two-level clustering approach,primarily relying on chlorophyll concentration index and secondarily on water status traits.Results showed significant genotypic variations for all measured traits,except phenolic compounds content.Correlations between structural and functional traits have pinpointed blade thickness and trichome hair length as the key indicators of fig drought tolerance,owing to their involvement in maintaining chlorophyll content under water stress conditions.The extent of the variations shows that fig leaf is endowed with a wide structural and functional diversity,which can give to the species potential for resilience to various environmental stresses,including drought.Among the cultivars assessed,two exotic varieties,“Kadota”and“Royal Blanck”,as well as four local cultivars,namely,“Ferqouch Jmel”,“El Qoti Labied”,“Hamra”and“Fassi”showed the highest drought plasticity level. 展开更多
关键词 Fig tree plasticity to drought leaf traits functional diversity RESILIENCE
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Follistatin,A Novel Therapeutic Target for Chronic Pain
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作者 Huimin Nie Boyi Liu 《Neuroscience Bulletin》 2025年第6期1119-1122,共4页
In a recent study published in Science Translational Medicine,Jiang et al.uncovered a novel contribution of sensory neuron-derived follistatin(FST)to neuropathic pain by which FST,generated from A-fiber neurons,promot... In a recent study published in Science Translational Medicine,Jiang et al.uncovered a novel contribution of sensory neuron-derived follistatin(FST)to neuropathic pain by which FST,generated from A-fiber neurons,promotes Nav 1.7-mediated noceptive neuronal excitability via binding to the insulin-like growth factor 1 receptor(IGF1R),making it a potential therapeutic target for neuropathic pain(Fig.1A,B)[1]. 展开更多
关键词 neuropathic pain chronic pain sensorineuron NAV FOLLISTATIN neuropathic pain fig ab IGF R
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FIGURES
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《China's Foreign Trade》 2025年第1期2-5,共4页
5%China’s GDP grew 5%year-on-year in 2024,meeting the annual target of around 5%.28.3%In 2024,the country’s newly installed photovoltaic capacity reached 277.57 GW,a 28.3 percent year-on-year increase from 2023,acco... 5%China’s GDP grew 5%year-on-year in 2024,meeting the annual target of around 5%.28.3%In 2024,the country’s newly installed photovoltaic capacity reached 277.57 GW,a 28.3 percent year-on-year increase from 2023,according to the China Photovoltaic Industry Association. 展开更多
关键词 installed FIG capacity
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Corrigendum to‘Tuning the nucleation kinetics of phosphate chemical conversion coating on Mg-Gd-Y-Zr magnesium alloy:The effect of pretreatment and organic additive’[Journal of Magnesium and Alloys 13(2025)207–218]
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作者 Siyu Sun Peng Zhou +5 位作者 Yan Chen JinTao Xiao Jingli Sun Yong Yuan Tao Zhang Fuhui Wang 《Journal of Magnesium and Alloys》 2025年第5期2433-2434,共2页
The authors regret that due to negligence,the picture was misplaced in the original manuscript,resulting in Fig.6d being incorrectly included.The correct version of Fig.6d is provided below for reference.This error do... The authors regret that due to negligence,the picture was misplaced in the original manuscript,resulting in Fig.6d being incorrectly included.The correct version of Fig.6d is provided below for reference.This error does not affect the conclusions of the study,and we apologize for any confusion it may have caused. 展开更多
关键词 nucleation kinetics fig d PRETREATMENT phosphate chemical conversion coating organic additive magnesium alloy
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Chinese Robotics Take a Big(Dance)Step Forward
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作者 Chris Palmer 《Engineering》 2025年第11期7-10,共4页
In a late January 2025 program broadcast to a television audience of more than a billion viewers,16 Unitree(Hangzhou,China)H1 humanoid robots joined human performers in a synchronized Yangko dance at the Chinese Sprin... In a late January 2025 program broadcast to a television audience of more than a billion viewers,16 Unitree(Hangzhou,China)H1 humanoid robots joined human performers in a synchronized Yangko dance at the Chinese Spring Festival Gala[1].Each robot featured more than 40 degrees of freedom(DOF)in its limbs,real-time motion planning,and stable gait control using terrainagnostic algorithms.As they danced,the robots mimicked the human dancers in skillfully manipulating handkerchiefs(Fig.1). 展开更多
关键词 terrainagnostic algorithmsas synchronized yangko dance human performers Chinese robotics humanoid robots stable gait control manipulating handkerchiefs fig human dancers
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Detection and Classification of Fig Plant Leaf Diseases Using Convolution Neural Network
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作者 Rahim Khan Ihsan Rabbi +2 位作者 Umar Farooq Jawad Khan Fahad Alturise 《Computers, Materials & Continua》 2025年第7期827-842,共16页
Leaf disease identification is one of the most promising applications of convolutional neural networks(CNNs).This method represents a significant step towards revolutionizing agriculture by enabling the quick and accu... Leaf disease identification is one of the most promising applications of convolutional neural networks(CNNs).This method represents a significant step towards revolutionizing agriculture by enabling the quick and accurate assessment of plant health.In this study,a CNN model was specifically designed and tested to detect and categorize diseases on fig tree leaves.The researchers utilized a dataset of 3422 images,divided into four classes:healthy,fig rust,fig mosaic,and anthracnose.These diseases can significantly reduce the yield and quality of fig tree fruit.The objective of this research is to develop a CNN that can identify and categorize diseases in fig tree leaves.The data for this study was collected from gardens in the Amandi and Mamash Khail Bannu districts of the Khyber Pakhtunkhwa region in Pakistan.To minimize the risk of overfitting and enhance the model’s performance,early stopping techniques and data augmentation were employed.As a result,the model achieved a training accuracy of 91.53%and a validation accuracy of 90.12%,which are considered respectable.This comprehensive model assists farmers in the early identification and categorization of fig tree leaf diseases.Our experts believe that CNNs could serve as valuable tools for accurate disease classification and detection in precision agriculture.We recommend further research to explore additional data sources and more advanced neural networks to improve the model’s accuracy and applicability.Future research will focus on expanding the dataset by including new diseases and testing the model in real-world scenarios to enhance sustainable farming practices. 展开更多
关键词 Fig tree leaf diseases deep learning convolutional neural network disease detection and classification agriculture technology
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Robotic duodenum-preserving pancreatic head resection in a 21-month-old infant with benign disease:Redefining the“minimum feasible age”for robotic surgery(with video)
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作者 Guo-Dong Zhao Yu-Hang Cheng +5 位作者 Xing-Ru Wang Jun Feng Jian-Yu Han Pan Gao Jia-Tong Xu Hong Qin 《Hepatobiliary & Pancreatic Diseases International》 2025年第6期695-697,共3页
Herein,we describe a case of robotic duodenum-preserving pancreatic head resection(DPPHR)performed on a 21-monthold male infant(weight:13 kg;body mass index:18.87 kg/m^(2))with focal nesidioblastosis,expanding the sco... Herein,we describe a case of robotic duodenum-preserving pancreatic head resection(DPPHR)performed on a 21-monthold male infant(weight:13 kg;body mass index:18.87 kg/m^(2))with focal nesidioblastosis,expanding the scope of minimally invasive pediatric hepatobiliary surgery(Fig.1;Video S1).Preoperative positron emission tomography-computed tomography revealed a 23×13 mm neuroendocrine lesion in the pancreatic head,which caused refractory hypoglycemia and necessitated surgical intervention. 展开更多
关键词 minimally invasive surgery pediatric hepatobiliary surgery minimally invasive pediatric hepatobiliary surgery fig video neuroendocrine lesion focal nesidioblastosisexpanding refractory hypoglycemia surgical intervention robotic surgery
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GSM新业务的研究
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作者 王志勤 魏然 万屹 《电信网技术》 1999年第4期10-17,共8页
对无绳通信系统(GSMCTS)、话音组呼叫业务(VGCS)、话音广播业务(VBS)、欺诈信息收集系统(FIGS)和立即业务终止(IST)等GSM新业务的发展背景、业务特点及实现方式等进行了分析,并提出了引入我国网络的建议。
关键词 GSMCTS VGCS VBS figs IST
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Phenology of Ficus spp.in a tropical dry forest, Mudumalai, south India
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作者 H.S.Suresh R.Sukumar 《Journal of Forestry Research》 SCIE CAS CSCD 2018年第4期1117-1126,共10页
The phenology of figs (Ficus spp. Moraceae) is being monitored in the dry forests of Mudumalai, southern India and individuals belonging to the genus are marked with unique tag numbers and their vegetative and repro... The phenology of figs (Ficus spp. Moraceae) is being monitored in the dry forests of Mudumalai, southern India and individuals belonging to the genus are marked with unique tag numbers and their vegetative and reproductive phenologies have been monitored since August 2000 on a monthly basis. The influence of abiotic factors on fig phenology and the differences between fig and non- fig phenologies are being examined. The seasonality of different phenophases of fig phenology is also being examined. The maximum intensity of leaf flush occurred in drier months. Fig and non-fig species showed significant differences with expansion and senescence phenophases of leafing. Flowering also occurred in drier months. There were significant differences between fig and non-fig species with reproductive phenophases. As with non-fig species, leafing was influenced by maximum temperatures. Both vegetative and reproductive phenophases were significantly seasonal. 展开更多
关键词 Dry forests figs Non-figs Multipleregression PHENOLOGY SEASONALITY
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基于FIG-SVM的煤矿瓦斯浓度预测 被引量:19
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作者 刘俊娥 杨晓帆 郭章林 《中国安全科学学报》 CAS CSCD 北大核心 2013年第2期80-84,共5页
为了提高矿井上隅角瓦斯(这里指甲烷)浓度的预测精度,得到瓦斯浓度的一个预测范围,提出一种将模糊信息粒化(FIG)和支持向量机(SVM)相结合的瓦斯浓度预测方法。首先利用模糊信息粒化对原始数据进行模糊粒化处理,并且给出一个预测范围。... 为了提高矿井上隅角瓦斯(这里指甲烷)浓度的预测精度,得到瓦斯浓度的一个预测范围,提出一种将模糊信息粒化(FIG)和支持向量机(SVM)相结合的瓦斯浓度预测方法。首先利用模糊信息粒化对原始数据进行模糊粒化处理,并且给出一个预测范围。然后将粒化后的数据作为输入,运用SVM进行回归预测,采用粒子群(PSO)算法选取最佳的核函数参数g和惩罚因子c。最后根据实测值与预测值的对比判断预测方法的可靠度。试验结果表明:每一个时间段瓦斯浓度的实测值基本都在预测范围内,说明该模型预测精度较高,有较强的实用性和较快的收敛速度。 展开更多
关键词 模糊信息粒化(FIG) 支持向量机(SVM) 瓦斯(甲烷)浓度 预测 粒子群(PSO)
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依达拉奉和巴曲酶联合应用对急性脑梗死患者血浆溶血磷脂酸和纤维蛋白原水平变化的影响 被引量:6
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作者 王光胜 王元伟 +4 位作者 陈孝东 杨同慧 常春红 吴乐怀 顾汉沛 《中风与神经疾病杂志》 CAS CSCD 北大核心 2011年第7期631-634,共4页
目的动态测定急性脑梗死患者血浆溶血磷脂酸(LPA)和纤维蛋白原(Fig)的浓度变化,观察联合应用依达拉奉和巴曲酶对LPA和Fig水平的影响,并作临床预后评估。方法选择急性脑梗死患者270例,随机分为依达拉奉和巴曲酶联合治疗组、巴曲酶组和常... 目的动态测定急性脑梗死患者血浆溶血磷脂酸(LPA)和纤维蛋白原(Fig)的浓度变化,观察联合应用依达拉奉和巴曲酶对LPA和Fig水平的影响,并作临床预后评估。方法选择急性脑梗死患者270例,随机分为依达拉奉和巴曲酶联合治疗组、巴曲酶组和常规治疗组各90例,同时选择门诊体检者90例作为对照,3组间性别、年龄、合并症及病情严重程度无显著性差异,分别测定入院时、治疗后3d、7d、14d的血浆LPA和Fig的浓度,并进行临床神经功能缺损程度评分,评估临床病情严重程度和预后。结果急性脑梗死患者血浆溶血磷脂酸(LPA)和纤维蛋白原(Fig)的含量明显增高,与对照组相比有显著差异(P<0.01),联合治疗组和巴曲酶组血浆LPA水平治疗后3d和7d逐渐下降,14d基本降至正常水平,但前者较后者下降更明显。3组患者血浆Fib浓度治疗后都逐渐下降,但联合治疗组和巴曲酶组治疗后3d、7d比常规治疗组下降更为显著,联合治疗组与巴曲酶组比较有显著差异,14d基本恢复正常水平。3组患者经治疗后神经功能缺损程度均有改善,但联合治疗组>巴曲酶组>常规治疗组,组间比较治疗3d、7d和14d有显著性差异。结论急性脑梗死后患者血浆LPA和Fig增高,联合应用依达拉奉和巴曲酶可明显降低血浆LPA和Fig水平,并能改善临床神经功能缺损评分。 展开更多
关键词 急性脑梗死 LPA FIG 预后
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FIG竞技健美操规则的改变对竞技健美操技术发展的影响 被引量:36
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作者 杨兴权 陆莉萍 《上海体育学院学报》 CSSCI 北大核心 2006年第6期51-55,共5页
从艺术编排、难度技术、动作完成三方面,对1997-2000年版、2001-2004年版、20012004年修订版及2005-2008年版的国际体操联合会(FIG)竞技健美操规则进行分析,了解规则的改变时竞技健美操技术发展的主要影响。具体体现在:成套动作编... 从艺术编排、难度技术、动作完成三方面,对1997-2000年版、2001-2004年版、20012004年修订版及2005-2008年版的国际体操联合会(FIG)竞技健美操规则进行分析,了解规则的改变时竞技健美操技术发展的主要影响。具体体现在:成套动作编排越来越强调操化动作、过渡与连接、托举、难度等内容的多样性和创新性;对成套动作的艺术性要求不断提升,动作要结合特定的音乐加以完美表现;规则的改变使难度动作的分组、动作分值更趋合理等方面。 展开更多
关键词 竞技健美操规则 国际体操联合会 技术发展 影响 FIG 成套动作
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Quercetin调节肝癌HepG2细胞Fas表达诱导细胞凋亡 被引量:6
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作者 张继红 梁力建 黄洁夫 《中国病理生理杂志》 CAS CSCD 北大核心 2008年第5期997-1001,共5页
目的:探讨三磷酸肌醇(IP3)和Fas基因表达变化在quercetin诱导肝癌细胞凋亡中的作用。方法:以肝癌HepG2细胞培养72h为对照,20、40、60、80μmol/L quercetin作用于HepG2细胞72h和60μmol/Lquercetin作用于HepG2细胞6h、12h、24h、48h、7... 目的:探讨三磷酸肌醇(IP3)和Fas基因表达变化在quercetin诱导肝癌细胞凋亡中的作用。方法:以肝癌HepG2细胞培养72h为对照,20、40、60、80μmol/L quercetin作用于HepG2细胞72h和60μmol/Lquercetin作用于HepG2细胞6h、12h、24h、48h、72h,应用同位素试剂盒IP3-[3H]Birtrak检测细胞IP3含量,RT-PCR分析FasmRNA表达,Western blotting分析细胞Fas蛋白表达,流式细胞仪检测细胞凋亡率。结果:各浓度的quercetin作用于肝癌HepG2细胞72h,IP3含量显著低于对照组[(17.9±1.5)pmol/106cells、(15.5±1.1)pmol/106cells、(5.7±0.9)pmol/106cells、(5.5±0.8)pmol/106cellsvs(29.4±0.5)pmol/106cells],FasmRNA表达显著高于对照组[RI0.26±0.01、0.30±0.01、0.30±0.02、0.37±0.02vs0.19±0.02],Fas蛋白表达显著高于对照组[RI(灰度与面积之积的相对强度)1.10±0.08、0.91±0.02、0.78±0.07、0.73±0.05vs0.15±0.01],细胞凋亡率显著高于对照组[(11.2±1.1)%、(15.5±1.1)%、(26.8±2.5)%、(27.1±1.5)%vs(2.6±0.1)%];60μmol/L quercetin作用于肝癌HepG2细胞6h、12h、24h、48h、72h,各时相IP3含量显著低于对照组[(23.3±1.4)pmol/106cells、(12.0±1.4)pmol/106cells、(7.5±0.8)pmol/106cells、(5.6±0.5)pmol/106cells、(4.3±0.6)pmol/106cellsvs(29.2±0.6)pmol/106cells,P<0.01];12h后FasmRNA表达显著高于对照组[RI0.26±0.02、0.28±0.02、0.26±0.01、0.24±0.01vs0.20±0.01],Fas蛋白表达显著高于对照组[RI0.65±0.17、1.20±0.07、1.51±0.06、1.50±0.06、0.97±0.17vs0.18±0.01],24h后各时相细胞凋亡率显著高于对照组[(7.4±0.5)%、(20.5±2.0)%、(30.7±1.6)%vs(2.6±0.1)%,P<0.01]。结论:Quercetin能减少IP生成,上调Fas基因表达,诱导肝癌细胞凋亡。 展开更多
关键词 肝细胞 N 1-皮素 基因 FIG 细胞凋亡 肌醇1 4 5-三磷酸
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哌拉西林与氧氟沙星联合抗菌活性的研究(摘要) 被引量:2
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作者 王睿 孙效东 +3 位作者 刘卫 谢平 田桂荣 张有江 《中国医院药学杂志》 CAS CSCD 北大核心 1993年第7期17-18,49,共3页
目前对于严重的难治性感染性疾病常采用抗菌药物联合治疗。本文根据棋盘法设计,应用微量稀释法研究了酰脲类青霉素哌拉西林(Piperacillin,PIP)与氟喹诺酮类药物氧氟沙星(Ofloxacin,OFLX)的体外联合抗菌活性。
关键词 combined antibacterial activity PIPERACILLIN OFLOXACIN FIG index
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Matlab图形数据转换为DXF格式的方法研究 被引量:4
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作者 秦永 付仲良 《测绘通报》 CSCD 北大核心 2011年第9期77-79,共3页
Matlab具有强大的函数绘图功能,但其图形目前只能存为图片形式,一定程度上限制了数据的交流。分别讨论Matlab图形数据中字、线、块、面、像5种具体格式的转换方法,并以DXF格式转出,最后给出具体转换图形。
关键词 数据转换 FIG DXF
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