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Systematic Method for Constructing Lewis Representations
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作者 Lahbib Abbas Lahcen Bih +3 位作者 Khalid Yamni Abderrahim Elyahyaouy Abdelmalik El Attaoui Zahra Ramzi 《Open Journal of Inorganic Chemistry》 2024年第1期1-18,共18页
The systematic method for constructing Lewis representations is a method for representing chemical bonds between atoms in a molecule. It uses symbols to represent the valence electrons of the atoms involved in the bon... The systematic method for constructing Lewis representations is a method for representing chemical bonds between atoms in a molecule. It uses symbols to represent the valence electrons of the atoms involved in the bond. Using a number of rules in a defined order, it is often better suited to complicated cases than the Lewis representation of atoms. This method allows us to determine the formal charge and oxidation number of each atom in the edifice more efficiently than other methods. 展开更多
关键词 systematic method Lewis Representation Chemical Bond Formal Charge Oxidation Number
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Risk Assessment of Diary Cattle Brucellosis Based on Systematic Multilevel Grey Relation Entropy Method
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作者 孙向东 江慎铭 刘拥军 《Agricultural Science & Technology》 CAS 2012年第10期2169-2174,2225,共7页
[Objective] The study was to explore the major factors affecting diary cattle brucellosis risk assessment,as well as their strong-to-weak sequence,so as to provide theoretical basis for assessing diary cattle brucello... [Objective] The study was to explore the major factors affecting diary cattle brucellosis risk assessment,as well as their strong-to-weak sequence,so as to provide theoretical basis for assessing diary cattle brucellosis risk level in different regions.[Method] From 4 dimensions of feeding and importing,breeding,housing and polyculture situation,an evaluation index system was set up,and diary cattle brucellosis risk survey was conducted in 3 typical regions.Finally,systematic multilevel grey relation entropy method was applied to perform data analysis.[Result] The strong-to-weak sequence of Level 1 impact factor of diary cattle brucellosis was as follows:feeding and importinghousingpolyculture situationbreeding;the sequence of Level 2 impact factor was U32〉U12〉U11〉U31〉U21〉U42〉U43〉U23〉U22〉U41;the risk level sequence of 3 typical regions was Province A(County A1,A2,A3)Province B(County B1,B2,B3)Province C(County C1,C2,C3).[Conclusion] According to the weight of Level 1 index strata,administrative departments at all levels and dairy cattle farmers should lay emphasis on the aspects of feeding,importing and housing;viewed from the perspective of Level 2 index strata,dairy cattle farmers should value the siting of cattle field,the brucellosis surveillance before importing and milking modes most.According to the diary cattle brucellosis risk level of 3 typical regions,if administrative departments at all levels strengthen peoples' awareness of their personal health and increase investment in this area,with new healthy cultured atmosphere built,the risk level of diary cattle brucellosis will surly decline. 展开更多
关键词 systematic multilevel grey relation entropy method Diary cattle brucellosis Risk assessment
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SYSTEMATIC METHOD TO GENERATE NEW IDEAS IN FUZZY FRONT END USING TRIZ 被引量:6
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作者 TAN Runhua MA Lihui YANG Bojun SUN Jianguang 《Chinese Journal of Mechanical Engineering》 SCIE EI CAS CSCD 2008年第2期114-119,共6页
The obstacle for idea generation in fuzzy front end (FFE) is difficult to apply knowledge in different fields for designers. Theory of inventive problem solving TRIZ and computer-aided innovation systems (CAIs) wh... The obstacle for idea generation in fuzzy front end (FFE) is difficult to apply knowledge in different fields for designers. Theory of inventive problem solving TRIZ and computer-aided innovation systems (CAIs) which are TRIZ-base software systems with a knowledge base provide a framework for knowledge application in different fields. The major methods in TRIZ are selected, which have four types. The problems to be solved for each method are summarized and mapping from the problems to the methods is given. Systematic method with eight paths to integrate the methods and problems is formed. A case study shows the idea generation in FFE using the integrated method step by step. 展开更多
关键词 Idea generation Fuzzy front end (FFE) systematic method TRIZ
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Mapping ecosystem services in urban and peri-urban areas.A systematic review
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作者 Paulo Pereira Miguel Inácio +3 位作者 Luis Pinto Marius Kalinauskas Katarzyna Bogdzevic Wenwu Zhao 《Geography and Sustainability》 CSCD 2024年第3期491-509,共19页
Urban and peri-urban ecosystems are subjected to an intense impact.The demand for ecosystem services(ES)is higher in these areas.Nevertheless,despite the anthropogenic pressures,urban and peri-urban ecosystems supply ... Urban and peri-urban ecosystems are subjected to an intense impact.The demand for ecosystem services(ES)is higher in these areas.Nevertheless,despite the anthropogenic pressures,urban and peri-urban ecosystems supply important ES.Mapping is a crucial exercise to understand ES dynamics in these environments better.This work aims to systematically review mapping ES in urban and peri-urban areas studies,following the Preferred Reporting Items for Systematic Reviews and Meta-alpha Methods.A total of 207 studies were selected.The results show increased work between 2011 and 2023,mainly conducted in Europe and China.Most work were developed in urban areas and did not follow an established ES classification.Most studies focused on the ES supply dimension,the regulation and maintenance section.Regarding provisioning ES,most studies focused on Cultivating terrestrial plants for nutrition,regulating and maintainin g Atmospheric composition and conditions,and for cultural ES on Physical and experiential interactions with the natural environment.Quantitative methods were mostly applied following Indicator-based(secondary data:biophysical,socio-economic)models.Very few work validated the outputs.Several studies forecasted ES,primarily based on land use changes using CA-Markov approaches.This study provides an overview of the most mapped urban and peri-urban ES globally,the areas where more studies need to be conducted,and the methods developed. 展开更多
关键词 systematic review Urban and peri-urban areas Ecosystem services MAPPING methodS
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Penalized total least squares method for dealing with systematic errors in partial EIV model and its precision estimation 被引量:3
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作者 Leyang Wang Luyun Xiong Tao Chen 《Geodesy and Geodynamics》 CSCD 2021年第4期249-257,共9页
When the total least squares(TLS)solution is used to solve the parameters in the errors-in-variables(EIV)model,the obtained parameter estimations will be unreliable in the observations containing systematic errors.To ... When the total least squares(TLS)solution is used to solve the parameters in the errors-in-variables(EIV)model,the obtained parameter estimations will be unreliable in the observations containing systematic errors.To solve this problem,we propose to add the nonparametric part(systematic errors)to the partial EIV model,and build the partial EIV model to weaken the influence of systematic errors.Then,having rewritten the model as a nonlinear model,we derive the formula of parameter estimations based on the penalized total least squares criterion.Furthermore,based on the second-order approximation method of precision estimation,we derive the second-order bias and covariance of parameter estimations and calculate the mean square error(MSE).Aiming at the selection of the smoothing factor,we propose to use the U curve method.The experiments show that the proposed method can mitigate the influence of systematic errors to a certain extent compared with the traditional method and get more reliable parameter estimations and its precision information,which validates the feasibility and effectiveness of the proposed method. 展开更多
关键词 Partial EIV model systematic errors Nonlinear model Penalized total least squares criterion U curve method
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Systematic Analysis Method of Shear-Wave Splitting:SAM Software System 被引量:5
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作者 GaoYuan LiuXiqiang +1 位作者 LiangWei HaoPing 《Earthquake Research in China》 2004年第4期365-372,共8页
In order to make a more effective use of the data from regional digital seismograph networks and to promote the study on shear wave splitting and its application to earthquake stress-forecasting, SAM software system, ... In order to make a more effective use of the data from regional digital seismograph networks and to promote the study on shear wave splitting and its application to earthquake stress-forecasting, SAM software system, i.e., the software on systematic analysis method of shear wave splitting has been developed. This paper introduces the design aims, system structure, function and characteristics about the SAM software system and shows some graphical interfaces of data input and result output. Lastly, it discusses preliminarily the study of shear wave splitting and its application to earthquake forecasting. 展开更多
关键词 SAM software system Shear-wave splitting systematic analysis method Earthquake stress-forecasting
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Comparison of the local pivotal method and systematic sampling for national forest inventories 被引量:1
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作者 Minna Räty Mikko Kuronen +3 位作者 Mari Myllymäki Annika Kangas Kai Mäkisara Juha Heikkinen 《Forest Ecosystems》 SCIE CSCD 2020年第4期716-732,共17页
Background:The local pivotal method(LPM)utilizing auxiliary data in sample selection has recently been proposed as a sampling method for national forest inventories(NFIs).Its performance compared to simple random samp... Background:The local pivotal method(LPM)utilizing auxiliary data in sample selection has recently been proposed as a sampling method for national forest inventories(NFIs).Its performance compared to simple random sampling(SRS)and LPM with geographical coordinates has produced promising results in simulation studies.In this simulation study we compared all these sampling methods to systematic sampling.The LPM samples were selected solely using the coordinates(LPMxy)or,in addition to that,auxiliary remote sensing-based forest variables(RS variables).We utilized field measurement data(NFI-field)and Multi-Source NFI(MS-NFI)maps as target data,and independent MS-NFI maps as auxiliary data.The designs were compared using relative efficiency(RE);a ratio of mean squared errors of the reference sampling design against the studied design.Applying a method in NFI also requires a proven estimator for the variance.Therefore,three different variance estimators were evaluated against the empirical variance of replications:1)an estimator corresponding to SRS;2)a Grafström-Schelin estimator repurposed for LPM;and 3)a Matérn estimator applied in the Finnish NFI for systematic sampling design.Results:The LPMxy was nearly comparable with the systematic design for the most target variables.The REs of the LPM designs utilizing auxiliary data compared to the systematic design varied between 0.74–1.18,according to the studied target variable.The SRS estimator for variance was expectedly the most biased and conservative estimator.Similarly,the Grafström-Schelin estimator gave overestimates in the case of LPMxy.When the RS variables were utilized as auxiliary data,the Grafström-Schelin estimates tended to underestimate the empirical variance.In systematic sampling the Matérn and Grafström-Schelin estimators performed for practical purposes equally.Conclusions:LPM optimized for a specific variable tended to be more efficient than systematic sampling,but all of the considered LPM designs were less efficient than the systematic sampling design for some target variables.The Grafström-Schelin estimator could be used as such with LPMxy or instead of the Matérn estimator in systematic sampling.Further studies of the variance estimators are needed if other auxiliary variables are to be used in LPM. 展开更多
关键词 Auxiliary data Bias Local pivotal method Matérn estimator National forest inventory Sampling efficiency Simple random sampling Spatially balanced sampling systematic sampling Variance
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Application of Systematic Clustering Method in the Classification and Changes of Atmospheric Ozone in Hunan Province
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作者 Wenhui YAO Liushu FU +3 位作者 Qian GUO Chunling XU Zhe YANG Wei ZHOU 《Meteorological and Environmental Research》 CAS 2022年第4期1-6,共6页
The cluster analysis method needs continuous improvement and perfection in the research and application of the spatial differentiation and change of pollutants.In this paper,the date of monthly highest concentration o... The cluster analysis method needs continuous improvement and perfection in the research and application of the spatial differentiation and change of pollutants.In this paper,the date of monthly highest concentration of ozone(O_(3))and the concentration value of that day were selected as the similarity coefficient between classes.Single-factor cluster analysis was performed on O_(3)during 2016-2019 and the COVID-19 outbreak of 2020 in Hunan Province using the Ward method.The clustering results showed that the spatial distribution of atmospheric O_(3)in the 14 regions of Hunan Province was most suitable to be classified according to class III clustering areas.That is,the Changsha-Zhuzhou-Xiangtan urban agglomeration was the center,and the high-value area was in northern Hunan.The transition area was in central and southern Hunan,while the low-value area was centered in western Hunan.The partition results were in good agreement with the homogeneous subset of one-way ANOVA and the distribution of monitoring values during the same period.The comparison showed that the inter-class plates in the two periods corresponded well,and the intra-class area showed a continuous geographical distribution,and there were dynamic changes in the spatial differentiation of the O_(3)plates in different periods.In 2020,the center of the O_(3)high-value area plate in Hunan Province moved eastward and extended southward,focusing on the middle and lower reaches of the Xiangjiang River basin,and extending to the upstream area;the regional plate in the transition area expanded significantly;the low-value area plate shrank to the two cities in western Hunan.The abnormal emissions and abnormal climate during the COVID-19 epidemic had an impact on the spatial differentiation of O_(3)in Hunan Province. 展开更多
关键词 OZONE Regional differentiation systematic clustering method
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Systematic Review of Graphical Visual Methods in Honeypot Attack Data Analysis
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作者 Gbenga Ikuomenisan Yasser Morgan 《Journal of Information Security》 2022年第4期210-243,共34页
Mitigating increasing cyberattack incidents may require strategies such as reinforcing organizations’ networks with Honeypots and effectively analyzing attack traffic for detection of zero-day attacks and vulnerabili... Mitigating increasing cyberattack incidents may require strategies such as reinforcing organizations’ networks with Honeypots and effectively analyzing attack traffic for detection of zero-day attacks and vulnerabilities. To effectively detect and mitigate cyberattacks, both computerized and visual analyses are typically required. However, most security analysts are not adequately trained in visualization principles and/or methods, which is required for effective visual perception of useful attack information hidden in attack data. Additionally, Honeypot has proven useful in cyberattack research, but no studies have comprehensively investigated visualization practices in the field. In this paper, we reviewed visualization practices and methods commonly used in the discovery and communication of attack patterns based on Honeypot network traffic data. Using the PRISMA methodology, we identified and screened 218 papers and evaluated only 37 papers having a high impact. Most Honeypot papers conducted summary statistics of Honeypot data based on static data metrics such as IP address, port, and packet size. They visually analyzed Honeypot attack data using simple graphical methods (such as line, bar, and pie charts) that tend to hide useful attack information. Furthermore, only a few papers conducted extended attack analysis, and commonly visualized attack data using scatter and linear plots. Papers rarely included simple yet sophisticated graphical methods, such as box plots and histograms, which allow for critical evaluation of analysis results. While a significant number of automated visualization tools have incorporated visualization standards by default, the construction of effective and expressive graphical methods for easy pattern discovery and explainable insights still requires applied knowledge and skill of visualization principles and tools, and occasionally, an interdisciplinary collaboration with peers. We, therefore, suggest the need, going forward, for non-classical graphical methods for visualizing attack patterns and communicating analysis results. We also recommend training investigators in visualization principles and standards for effective visual perception and presentation. 展开更多
关键词 Honeypot Data Analysis Network Intrusion Detection Visualization and Visual Analysis Graphical methods and Perception systematic Literature Review
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Evaluation of soil nutrient status in poplar forest soil by soil nutrient systematic approach 被引量:5
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作者 余常兵 陈防 +1 位作者 罗治建 陈卫文 《Journal of Forestry Research》 SCIE CAS CSCD 2004年第4期298-300,共3页
A study was conducted to evaluate the soil nutrient status of poplar plantation by Soil Nutrient Systematic Approach (SNSA) in Jianghan Plain, Hubei Province, China. Soil physiochemical properties were analyzed in lab... A study was conducted to evaluate the soil nutrient status of poplar plantation by Soil Nutrient Systematic Approach (SNSA) in Jianghan Plain, Hubei Province, China. Soil physiochemical properties were analyzed in laboratory through collection soil samples of study site. Ten treatments of application different fertilizers were designed such as CK, optimum treatment (N, P, K, Zn), N(P, K, Zn), P(N, K, Zn), K(N, P, Zn), +Mg(N, P, K, Zn, Mg), Zn (N,P,K), +2P(N, 2P, K, Zn), +2K(N, P, 2K, Zn), and 2N+2P+2K(2N, 2P, 2K, Zn) for field experiment to test the effect on tree height, diameter (DBH) growth, and dry weight of poplar. The results showed that there was no significant difference in tree heights between treatments with different fertilizers, diameter growth of poplar trees in treatments of lack of N and Zn was significantly slower than that of trees in optimum treatment, and dry weight of poplar dropped significantly for treatment of CK as well as treatments without application N and Zn. It is concluded that N and Zn were main limiting factor for poplar growth. Results from laboratory analysis and field experiment were uniform per-fectly, which proved that SNSA was reliable in evaluating soil nutrient status of poplar plantation. 展开更多
关键词 Soil nutrient status Soil Nutrient systematic Approach Poplar plantation Limiting factor Evaluation method Soil physiochemical properties
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Endoscopic ultrasound-guided vs endoscopic retrograde cholangiopancreatography biliary drainage for obstructed distal malignant biliary strictures: A systematic review and meta-analysis 被引量:6
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作者 Fernanda P Logiudice Wanderlei M Bernardo +9 位作者 Facundo Galetti Vitor M Sagae Carolina O Matsubayashi Antonio C Madruga Neto Vitor O Brunaldi Diogo T H de Moura Tomazo Franzini Spencer Cheng Sergio E Matuguma Eduardo G H de Moura 《World Journal of Gastrointestinal Endoscopy》 CAS 2019年第4期281-291,共11页
BACKGROUND For palliation of malignant biliary obstruction(MBO), the gold-standard method of biliary drainage is endoscopic retrograde cholangiopancreatography(ERCP)with the placement of metallic stents. Endoscopic ul... BACKGROUND For palliation of malignant biliary obstruction(MBO), the gold-standard method of biliary drainage is endoscopic retrograde cholangiopancreatography(ERCP)with the placement of metallic stents. Endoscopic ultrasound(EUS)-guided drainage is an alternative that is typically reserved for cases of ERCP failure.Recently, however, there have been robust randomized clinical trials(RCTs)comparing EUS-guided drainage and ERCP as primary approaches to MBO.AIM To compare EUS guidance and ERCP in terms of their effectiveness and safety in palliative biliary drainage for MBO.METHODS This was a systematic review and meta-analysis, in which we searched the MEDLINE, Excerpta Medica, and Cochrane Central Register of Controlled Trials databases. Only RCTs comparing EUS and ERCP for primary drainage of MBO were eligible. All of the studies selected provided data regarding the rates of technical and clinical success, as well as the duration of the procedure, adverse events, and stent patency. We assessed the risk of biases using the Jadad score and the quality of evidence using the Grading of Recommendations Assessment,Development and Evaluation criteria.RESULTS The database searches yielded 5920 records, from which we selected 3 RCTs involving a total of 222 patients(112 submitted to EUS and 110 submitted to ERCP). In the EUS and ERCP groups, the rate of technical success was 91.96%n and 91.81%, respectively, with a risk difference(RD) of 0.00%(95%CI:-0.07, 0.07;P = 0.97; I^2 = 0%). The clinical success was 84.81% and 85.53% in the EUS and ERCP groups, respectively, with an RD of-0.01%(95%CI:-0.12, 0.10; P = 0.90; I^2 =0%). The mean difference(MD) for the duration of the procedure was-0.12%(95%CI:-8.20, 7.97; P = 0.98; I^2 = 84%). In the EUS and ERCP groups, there were14 and 25 adverse events, respectively, with an RD of-0.06%(95%CI:-0.23, 0.12; P= 0.54; I^2 = 77%). The MD for stent patency was 9.32%(95%CI:-4.53, 23.18; P =0.19; I^2 = 44%). The stent dysfunction rate was significantly lower in the EUS t group(MD =-0.22%; 95 CI:-0.35,-0.08; P = 0.001; I^2 = 0%).CONCLUSION EUS represents an interesting alternative to ERCP for MBO drainage,demonstrating lower stent dysfunction rates compared with ERCP. Technical and clinical success, duration, adverse events and patency rates were similar. 展开更多
关键词 Common bile duct neoplasms ENDOSCOPIC retrograde CHOLANGIOPANCREATOGRAPHY ENDOSONOGRAPHY Ultrasonography Interventional/methods ENDOSCOPIC ultrasound systematic review META-ANALYSIS
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Systematic Synthesis of Compressive VDTA-Based T-T Filter with Orthogonal Control of f_o and Q 被引量:3
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作者 Yong-An Li Yan-Hua Xi Zhan-Ting Fan 《Journal of Electronic Science and Technology》 CAS CSCD 2020年第3期276-286,共11页
Based on sixteen nullor-mirror models of the voltage differencing transconductance amplifier (VDTA) and port admittance matrices of the tow-Thomas (T-T) filter with orthogonal control between the characteristic freque... Based on sixteen nullor-mirror models of the voltage differencing transconductance amplifier (VDTA) and port admittance matrices of the tow-Thomas (T-T) filter with orthogonal control between the characteristic frequency(f_0) and figure of merit (Q),two different categories of the voltage-mode and transconductance-mode T-T filters are synthesized by the means of the nodal admittance matrix (NAM) expansion method.The category A filter that employs two compressive VDTAs and two grounded capacitors includes four structures,and the category B filter that uses two compressive VDTAs,two grounded capacitors,and one grounded resistor,also includes four structures.These circuits are suitable for integrated circuit manufacture,and their parameters f_0 and Q can be orthogonally adjusted with varying the bias currents of VDTAs.After the paper and pencil test is completed,the computer analyses,including alternating current (AC),parameter sweep,Monte Carlo (MC),and noise analyses,are performed to support the synthesis approach. 展开更多
关键词 Compressive voltage differencing transconductance amplifier(compressive VDTA) nodal admittance matrix(NAM)expansion method systematic synthesis tow-Thomas(T-T)filter
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Duplicates in systematic reviews: A critical, but often neglected issue
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作者 Xing-Shun Qi Ming Bai +1 位作者 Zhi-Ping Yang Wei-Rong Ren 《World Journal of Meta-Analysis》 2013年第3期97-101,共5页
The number of systematic reviews is gradually increas-ing over time. Also, the methods to perform a systematic review are being improved. However, little attention has been paid for the issue regarding how to fnd dupl... The number of systematic reviews is gradually increas-ing over time. Also, the methods to perform a systematic review are being improved. However, little attention has been paid for the issue regarding how to fnd duplicates in systematic reviews. On the basis of the survey and systematic reviews by our team and others, we review the prevalence, significance and classification of duplicates and the method to fnd duplicates in a systematic review. Notably, although a preliminary method to fnd duplicates is established, its usefulness and convenience need to be further confrmed. 展开更多
关键词 Duplicates systematic review method PREVALENCE Signifcance
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Techniques for Determining the Treatment Costs of Cervical Cancer: A Systematic Review
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作者 Candice Amorim de Araújo Lima Santos Ariani Impieri Souza Suely Arruda Vidal 《Open Journal of Obstetrics and Gynecology》 2019年第2期117-128,共12页
Background: Uterine cervical cancer (UCC) represents a public health problem in many part of the world. The use of new technologies is leading to increased treatment costs, resulting in a substantial economic impact w... Background: Uterine cervical cancer (UCC) represents a public health problem in many part of the world. The use of new technologies is leading to increased treatment costs, resulting in a substantial economic impact worldwide. Standardization of economic evaluation methods is needed to improve comparisons between jurisdictions. Objective: To identify the methods used to measure the cost of treating invasive UCC, and to search for correlations between cancer treatment expenditures and local economies. Methods: We searched articles in MEDLINE, LILACS, and SciELO with no language restrictions, and included publications from January 01, 2007 to December 31, 2016. Studies were included if they described the annual direct cost of invasive cervical cancer and detailed the costing method. Complete economic evaluations were excluded. Results were described in 2016 international dollars. Results: Of 1581 studies initially reviewed, 13 articles were included in the analysis. Six articles used a bottom-up;six used a top-down approach and one used both. Annual cost per patient varied from I$ 2146.22 (Poland) to 34,351.54 (Sweden). Middle-income countries (MIC) spent median 72.52% of its GDP per capita on the treatment of invasive cervical cancer, while high-income countries (HIC) spent median 30.12% (p = 0.032). No significant difference was found when separated by costing method. Conclusions: We found that, for the treatment costs of invasive UCC, the percentages of GDP per capita were statistically higher in MIC than in HIC. However, no significant difference was found between costing methods, and the top-down approach could be used. 展开更多
关键词 CERVICAL CANCER COSTS and COST Analysis Costing method systematic Review
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基于系统辨证脉学探讨《伤寒杂病论》仲景脉法
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作者 卜瑞琪 韩宇 +2 位作者 闫伟 滕晶 齐向华 《山东中医药大学学报》 2025年第1期6-11,35,共7页
系统辨证脉学从位、数、形、动、质五个维度描述了脉体、脉管壁、血流和脉搏波方面的脉象信息,脉象要素耦合形成脉象系统,进而各系统间形成网络化的疾病发生发展的动态逻辑,形成中医脉诊的“心智模型”。《伤寒杂病论》强调“脉”在辨... 系统辨证脉学从位、数、形、动、质五个维度描述了脉体、脉管壁、血流和脉搏波方面的脉象信息,脉象要素耦合形成脉象系统,进而各系统间形成网络化的疾病发生发展的动态逻辑,形成中医脉诊的“心智模型”。《伤寒杂病论》强调“脉”在辨证识病中的重要性,将脉形、脉位、脉势分别辨阴阳,以分析疾病之病性与动态转归。通过系统辨证脉学的视角,将仲景脉法分为阴阳、五脏、六经辨证脉法三大方面。结合五带六区七层理论阐释的“部位阴阳”,结合“太过不及”重新解构传统脉象的“脉象阴阳”,结合不同疾病阴阳属性与特定病脉的“疾病阴阳”;结合系统论、全息理论重新阐释“五脏脉法”;结合疾病过程及脉象要素客观阐释“六经辨证脉法”。据此,进一步还原张仲景《伤寒杂病论》的脉诊模式。仲景阴阳脉法、五脏脉法、六经辨证脉法三者实质上相互融合,对于疾病的定位、定性诊断可互为补充,从而可发掘人体系统出现病理变化背后的真正病机。 展开更多
关键词 系统辨证脉学 《伤寒杂病论》 仲景脉法 定位诊断 定性诊断 客观阐释
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Xingnao Kaiqiao needling method for acute ischemic stroke: a meta-analysis of safety and efficacy 被引量:10
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作者 Zhi-xin Yang Jia-hong Xie Ding-ding Liu 《Neural Regeneration Research》 SCIE CAS CSCD 2017年第8期1308-1314,共7页
OBJECTIVE: To evaluate the effectiveness and safety of the Xingnao Kaiqiao needling method for treating acute ischemic stroke.DATA SOURCES: We retrieved relevant randomized controlled trials involving Xingnao Kaiqia... OBJECTIVE: To evaluate the effectiveness and safety of the Xingnao Kaiqiao needling method for treating acute ischemic stroke.DATA SOURCES: We retrieved relevant randomized controlled trials involving Xingnao Kaiqiao acupuncture for treatment of acute ischemic stroke. The China National Knowledge Infrastructure, Weipu Information Resources System, Wanfang Medical Data System, Chinese Biomedical Literature Database, Cochrane Library, and Pub Med were searched from June 2006 to March 2016.DATA SELECTION: We analyzed randomized and semi-randomized clinical controlled trials that compared Xingnao Kaiqiao acupuncture with various control treatments, such as conventional drugs or other acupuncture therapies, for treatment of acute ischemic stroke. The quality of articles was evaluated according to the Cochrane Handbook for Systematic Reviews of Interventions(Version 5.1), and the study was carried out using Cochrane system assessment methods. Rev Man 5.2 was used for the meta-analysis of the included studies.OUTCOME MEASURES: The mortality rate, disability rate, activities of daily living(Barthel Index), and clinical efficacy were observed.RESULTS: Twelve studies met the inclusion criteria for this review. The meta-analysis showed that between Xingnao Kaiqiao acupuncture and the control treatment, Xingnao Kaiqiao acupuncture reduced the disability rate [risk ratio(RR) = 0.51, 95% confidence interval(CI) = 0.27-0.98, z = 2.03, P 〈 0.05], elevated the activities of daily living(weighted mean difference = 12.23, 95% CI: 3.66-20.08, z = 2.80, P 〈 0.005), and had greater clinical efficacy(RR = 1.61, 95% CI: 1.23-2.09, z = 3.53, P 〈 0.0004). However, there was no significant difference in mortality rate(RR = 0.61, 95% CI: 0.15-2.45, z = 0.70, P 〉 0.05). CONCLUSION: The Xingnao Kaiqiao needling method is effective and safe for acute ischemic stroke. However, there was selective bias in this study, and the likelihood of measurement bias is high. Thus, more high-quality randomized controlled trials are needed to provide reliable evidence of the efficacy and safety of Xingnao Kaiqiao acupuncture in the treatment of acute ischemic stroke. 展开更多
关键词 nerve regeneration Xingnao Kaiqiao needling method acute ischemic stroke META-ANALYSIS systematic review activities of daily living Barthel index MORTALITY disability rate clinical e^cacy neuralregeneration
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Meta-Analysis of Bushen Huoxue Method in the Treatment of Recurrent Spontaneous Abortion Due to Prethrombotic State 被引量:1
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作者 Rong-Feng Pu Nan Li +2 位作者 Hong-Li Zhu Jun Bai Mei Chen 《Journal of Clinical and Nursing Research》 2022年第2期163-172,共10页
Objective:To evaluate the effectiveness and safety of Bushen Huoxue prescription in the treatment of recurrent spontaneous abortion(RSA)due to prethrombotic state(PTS).Methods:Databases such as CNKI,WanFang,VIP,CBM,Pu... Objective:To evaluate the effectiveness and safety of Bushen Huoxue prescription in the treatment of recurrent spontaneous abortion(RSA)due to prethrombotic state(PTS).Methods:Databases such as CNKI,WanFang,VIP,CBM,PubMed,Embase,and Cochrane Library were searched for randomized controlled trials on Bushen Huoxue prescription in treating RSA due to PTS from inception to March 2021;meta-analysis was performed by RevMan Version 5.3.0 following quality evaluation.Results:Seven trials were included,with 496 patients;the meta-analysis indicated that Bushen Huoxue prescription has advantages on the improvement of total clinical effective rate[RR=1.22,95%CI(1.10,1.35),Z=3.80(P=0.0001)],embryo survival rate at pregnancy of 12 weeks[RR=1.25,95%CI(1.10,1.41),Z=3.53(P=0.0004)],D-dimer levels[SMD=-1.59,95%CI(-2.20,-0.97),Z=5.07(P<0.00001)],and fibrinogen levels[MD=-1.00,95%CI(-1.29,-0.70),Z=6.61(P<0.00001)],but the statistical heterogeneity was significant;in terms of incidence of adverse reactions,there was no statistical difference between Bushen Huoxue prescription and western medicine.Conclusion:Compared with western medicine alone,Bushen Huoxue prescription alone or in combination with western medicine showed significant advantages in improving the overall clinical efficiency,embryonic survival rate at 12 weeks of pregnancy,and reducing D-dimer values as well as fibrinogen levels,without any significant difference in the incidence of adverse effects;however,the number of included studies is small and there are drawbacks,such as small sample size and low quality;therefore,high-quality clinical studies with large sample size and rigorous trial designs are needed in the future to provide a reliable basis for the effectiveness and safety of TCM in reducing the incidence of RSA due to prethrombotic state. 展开更多
关键词 Bushen Huoxue method Recurrent spontaneous abortion Prethrombotic state systematic review META-ANALYSIS
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Review on Quantitative Research Methods of Regional Sustainable Development in China
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作者 Zhang Jinping Qin Yaochen Zhang Erxun 《Chinese Journal of Population,Resources and Environment》 2010年第3期44-53,共10页
Since the 1990s, with the in-depth study and understanding of sustainable development, quantitative study of regional sustainable development (RSD) was increasingly hot in China. Based on quantitative study of RSD fro... Since the 1990s, with the in-depth study and understanding of sustainable development, quantitative study of regional sustainable development (RSD) was increasingly hot in China. Based on quantitative study of RSD from Core Periodical in China National Knowledge Infrastructure (1992–2008), statistical analysis on the annual distribution, periodicals distribution and changes of the distribution were made. And from perspectives of social–economic, ecological, systematic and emerging methods, the course, problems and trends of the quantitative study methods on RSD were examined and analyzed to get a clear summary. By the review, the context on the quantitative study of RSD was to be clarified. The study also showed that, primarily, fields involving quantitative study are expanding; second, big progresses and constant development have been made on the systematic method gradually sophisticated, the flourishing ecological method and emerging new methods in the context of cross and integration which has made complex integrated systems a more satisfactory solution; third, the method system has been more multi-angled, and the clues of independent innovation have been observed despite the fact that the introduction of imported method is the main trend. Although many problems exist, multi-scale study, dynamic timeseries study and inter-regional comparative study will be further exploited and increasingly carried out with the progress of spatial information technology, which would boost the development and application of new methods in RSD study. 展开更多
关键词 regional sustainable development quantitative research models systematic methods ecological methods
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基于系统聚类法的含新能源电力系统分区策略 被引量:1
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作者 韩平平 郭佳林 +1 位作者 董玮 王正风 《电力系统及其自动化学报》 CSCD 北大核心 2024年第5期114-120,共7页
为实现含新能源电力系统的惯量分布特性的有效评估,提出一种基于系统聚类法的含新能源电力系统分区策略。首先分析新能源机组惯量与同步机组惯量之间的差异;其次构建节点惯量响应模型,分析节点惯量相关因素的特性;然后通过主成分分析对... 为实现含新能源电力系统的惯量分布特性的有效评估,提出一种基于系统聚类法的含新能源电力系统分区策略。首先分析新能源机组惯量与同步机组惯量之间的差异;其次构建节点惯量响应模型,分析节点惯量相关因素的特性;然后通过主成分分析对影响节点惯量的主导变量进行降维,将降维后的变量应用系统聚类法对节点进行聚类分区;最后通过系统辨识得到区域惯量,评判出整个系统惯量的空间分布。在仿真软件中搭建改进的IEEE 10机39节点模型验证了分区策略的合理性。 展开更多
关键词 系统聚类法 新能源电力系统 惯量分区 系统辨识
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铸牢中华民族共同体意识研究的当代呈现与传播 被引量:1
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作者 王宇 《阴山学刊》 2024年第1期22-26,105,共6页
纵观铸牢中华民族共同体意识研究,主要是通过书籍、报纸、期刊、电视、广播和网站展开宏观辨识,通过纸媒、学术会议、数据库网站传播进行中观探析,通过新媒体传播、现场传播开展微观运作。其传播内容随着认识论、实践论、关系论、价值... 纵观铸牢中华民族共同体意识研究,主要是通过书籍、报纸、期刊、电视、广播和网站展开宏观辨识,通过纸媒、学术会议、数据库网站传播进行中观探析,通过新媒体传播、现场传播开展微观运作。其传播内容随着认识论、实践论、关系论、价值论等多维论域的研究而呈现出丰富广泛的特点。多种研究方法的运用与相互结合,使铸牢中华民族共同体意识研究的传播效果不断积累、深化和扩大。循着最初由内涵阐释到方法路径的摸索、从对历史渊源的体现挖掘到在当代民族工作中的实际运用、由对中国各民族人民铸牢中华民族共同体意识的现实探析到对新生代海外侨胞铸牢中华民族共同体意识的现状分析的研究轨迹,相应地其传播规律划分为接触与显现阶段、选择阶段、融合阶段。因目前铸牢中华民族共同体意识研究呈现出碎片化、重点不突出的问题,且在传播影响力方面有待增强,时下与未来一段时间需要在呈现的体系化与特色化、呈现的方向性与重点性、传播的中国化与国际化几个方面进行进一步深化挖掘与完善。 展开更多
关键词 铸牢中华民族共同体意识 研究论域 研究方法 媒介 传播效果 体系化 重点性
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