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Bayesian neural network evaluation method on the neutron-induced fission product yields of^(232)Th
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作者 Chun-Yuan Qiao Ya-Xuan Wang +2 位作者 Chun-Wang Ma Jun-Chen Pei Yong-Jing Chen 《Nuclear Science and Techniques》 2026年第3期132-142,共11页
Research on neutron-induced fission product yields of^(232)Th is crucial for understanding the competition between symmetric and asymmetric fission in actinide nuclei.However,obtaining complete isotopic yield distribu... Research on neutron-induced fission product yields of^(232)Th is crucial for understanding the competition between symmetric and asymmetric fission in actinide nuclei.However,obtaining complete isotopic yield distributions over a wide range of neutron energies remains a challenge.In this study,a Bayesian neural network model was developed to predict the independent(IND)and cumulative fission yields of^(232)Th under neutron irradiation at various incident energies.To address the limited availability of experimental data for the analysis of IND mass distributions,we substituted mass-number-based yields with the yields of specific isotopes.Furthermore,physical phenomena or quantities,such as the odd-even effect and isospin,were introduced as constraints to enhance the physical consistency of the predictions.The impact of these constraints was evaluated using mass-chain yield distributions and their dependence on energy.Incorporating physical constraints significantly improves the prediction accuracy,yielding more reliable and physically meaningful fission yield data for nuclear physics and reactor design applications. 展开更多
关键词 Bayesian neural network ^(232)Th Independent fission yield Cumulative fission yield Odd–even effect ISOSPIN
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The Characterization of Self-adjoint Domains of Two-interval Odd Order Differential Operators
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作者 WANG Linyu HAO Xiaoling LI Kun 《数学进展》 北大核心 2025年第4期784-802,共19页
In this paper,we give a complete characterization of all self-adjoint domains of odd order differential operators on two intervals.These two intervals with all four endpoints are singular(one endpoint of each interval... In this paper,we give a complete characterization of all self-adjoint domains of odd order differential operators on two intervals.These two intervals with all four endpoints are singular(one endpoint of each interval is singular or all four endpoints are regulars are the special cases).And these extensions yield"new"self-adjoint operators,which involve interactions between the two intervals. 展开更多
关键词 self-adjoint domain odd order differential operator two-interval
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一种基于场景元素的自动驾驶车辆运行范围评估方法
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作者 潘新福 倪海龙 罗正刚 《专用汽车》 2025年第10期70-75,共6页
自动驾驶车辆是一个包含环境感知、车辆定位、路径规划和决策控制的综合智能系统。不同自动驾驶等级的车辆对环境的适应性不同,如果能结合环境感知信息和自动驾驶车辆自身运行范围,就能帮助车辆判断是否需要退出自动驾驶,以保证行驶安... 自动驾驶车辆是一个包含环境感知、车辆定位、路径规划和决策控制的综合智能系统。不同自动驾驶等级的车辆对环境的适应性不同,如果能结合环境感知信息和自动驾驶车辆自身运行范围,就能帮助车辆判断是否需要退出自动驾驶,以保证行驶安全性。为此,提出了一种用于综合评估自动驾驶车辆运行范围的方法,将自动驾驶环境信息进行拆解分类得到一系列场景元素,建立传递模型并融合层次分析法计算当前场景的复杂度,最后基于自动驾驶车辆的测试结果评估其运行范围。 展开更多
关键词 自动驾驶 场景元素 ODD 运行范围 评估方法
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Association of the rs1333048 polymorphism in the ANRIL gene with different clinical forms of periodontitis: A meta-analysis
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作者 Felipe Rodolfo Pereira da Silva Alessandro Luiz Araújo Bentes Leal +8 位作者 Juliana Gomes Galeno André Victor Oliveira Monteiro Francisco Angelis Herrera Araujo Kamilly de Oliveira Tavares José Rogério Souza Monteiro Ana Carolina Alves de Oliveira Adenilson Leão Pereira Anna Carolina Toledo da Cunha Pereira Daniel Fernando Pereira Vasconcelos 《World Journal of Meta-Analysis》 2025年第4期24-34,共11页
BACKGROUND Periodontitis is a chronic inflammatory disorder influenced by both behavioral and genetic factors.Among epigenetic regulators,the ANRIL gene has been proposed as a risk factor for periodontitis;however,fin... BACKGROUND Periodontitis is a chronic inflammatory disorder influenced by both behavioral and genetic factors.Among epigenetic regulators,the ANRIL gene has been proposed as a risk factor for periodontitis;however,findings on the association between ANRIL polymorphisms and disease susceptibility remain inconsistent.AIM To analyze the association between the rs1333048 genetic polymorphism in the ANRIL gene and periodontitis via meta-analysis.METHODS A literature search was performed for studies published before May 2,2025.The Review Manager statistical program was used in analyses with calculations of heterogeneity index(I^(2))and odds ratio(OR)with 95%of confidence intervals(CI).Begg’s test and the Egger’s linear regression test were used for publication bias evaluation using Comprehensive meta-analysis software.P<0.05 was considered significant.da Silva FRP et al.ANRIL gene and periodontitis:A meta-analysis WJMA https://www.wjgnet.com 2 December 18,2025 Volume 13 Issue 4 RESULTS From 12 studies including 5489 participants across multiple ethnic groups,we observed a statistically significant association between ANRIL gene polymorphisms and periodontitis in the allelic contrast model(OR=1.2495%CI:1.15-1.34,P<0.00001).Conversely,the wild-type allele was significantly associated with the control group(OR=0.8095%CI:0.75-0.87,P<0.00001).Heterogeneity was low(I²=28%,Pheterogeneity=0.17),and no significant risk of publication bias was detected(P>0.05).CONCLUSION In conclusion,this meta-analysis demonstrated a significant association between the rs1333048 polymorphism and periodontitis in the overall analysis and in stratified analyses of Caucasian populations,but in for mixed-race populations. 展开更多
关键词 Periodontal diseases RNA Alleles Odds ratio DNA methylation
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Nonreciprocal Rotating Waves of Odd Elastic Circular Plates
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作者 Andi Lai Kai Wu +2 位作者 Jiawei Zhou Yuhang Li Guo Fu 《Acta Mechanica Solida Sinica》 2025年第6期1012-1024,共13页
Odd elasticity introduces active moduli to the antisymmetric components of the elastic tensor,which describe the asymmetric coupling between different deformation modes in a medium and quantify the work extracted duri... Odd elasticity introduces active moduli to the antisymmetric components of the elastic tensor,which describe the asymmetric coupling between different deformation modes in a medium and quantify the work extracted during quasi-static strain cycles.The introduction of active moduli renders the elastic tensor non-Hermitian,breaking the Maxwell-Betti reciprocity and enabling the observation of phenomena that cannot occur in traditional passive media.Here,we develop an analytical dynamic model for odd elastic circular plates to investigate the effects of odd elasticity on motion in rotationally symmetric geometries.We report a novel nonreciprocal rotating wave and explore the effects of different odd elastic moduli on chiral deformation.Nonreciprocal rotating waves represent a distinct dynamic mode,exhibiting unidirectional propagation with amplitude increasing or decreasing exclusively along a specific direction.The amplitude change during motion reveals the system’s non-conservation of energy. 展开更多
关键词 Rotating waves Circular plates Odd elasticity NONRECIPROCITY Chiral deformation
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Evaluating log odds of positive lymph nodes as a prognostic tool in differentiated gastric cancer:A retrospective study
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作者 Ming-Cong Deng Ken Chen +20 位作者 Qi-Mei Bao Yi-Xing Huang Chun-Kai Zhang Yu-Ke Zhong Han-Yi He Dan Zu Chen Liang Hai-Dong Liu Yang-Chan Hu Guo-Xia Liu Yan-Hua He Wei-Xing Wu Jing-Nan Zhou Yao-Shu Teng Ji Jing Yin Shi Clive Yik-Sham Chung Chen-Huan Yu Yi-An Du Zu Ye Xiang-Dong Cheng 《World Journal of Gastroenterology》 2025年第21期61-78,共18页
BACKGROUND The log odds of positive lymph nodes(LODDS)are correlated with survival outcomes in gastric cancer(GC)patients.However,the prognostic value across different tumor differentiation levels remains unclear.AIM ... BACKGROUND The log odds of positive lymph nodes(LODDS)are correlated with survival outcomes in gastric cancer(GC)patients.However,the prognostic value across different tumor differentiation levels remains unclear.AIM To evaluate the independent prognostic value of LODDS and the stratified predictive efficacy in GC patients with different histologic differentiations.METHODS We conducted a retrospective analysis of 2103 GC patients who underwent radical gastrectomy at Zhejiang Cancer Hospital.The prognostic value of LODDS was compared with that of other lymph node-based metrics,including the pathologic N stage,number of positive lymph nodes,number of total lymph nodes,and lymph node ratio,stratified by tumor differentiation.RESULTS LODDS was identified as an independent prognostic factor for overall survival in moderately to poorly differentiated GC patients.LODDS demonstrated superior predictive accuracy over other lymph node metrics.A nomogram incorporating LODDS,age,carbohydrate antigen(CA)125,carcinoembryonic antigen,and tumor differentiation showed good predictive accuracy(C-index=0.703).A higher LODDS was significantly associated with an increased risk of recurrence or metastasis,poorly differentiated tumors,advanced cancer,mucinous gastric adenocarcinoma,nerve invasion,and vascular tumor thrombus.Additionally,LODDS was positively correlated with the tumor markers CA19-9,CA72-4,CA125,and CA242(all P<0.05).CONCLUSION LODDS is an independent prognostic indicator for patients with moderately and poorly differentiated GC,and its predictive performance is superior to that of other models. 展开更多
关键词 Gastric cancer Log odds of positive lymph nodes Tumor differentiation Tumor marker Overall survival
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A triple-band miniaturized end-fire antenna based on odd-mode spoof surface plasmonic polariton waveguide resonator
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作者 BAI Yukun MAO Mengqun 《Optoelectronics Letters》 2025年第8期462-467,共6页
A triple-band miniaturized end-fire antenna based on the odd modes of spoof surface plasmonic polariton(SSPP)waveguide resonator is proposed in this paper.To meet the ever increasing demand for more communication chan... A triple-band miniaturized end-fire antenna based on the odd modes of spoof surface plasmonic polariton(SSPP)waveguide resonator is proposed in this paper.To meet the ever increasing demand for more communication channels and less antenna sizes,multi-band antennas are currently under intensive investigation.By a novel feeding method,three odd modes are excited on an SSPP waveguide resonator,which performs as an end-fire antenna operating at three bands,7.15-7.26 GHz,11.6-12.2 GHz and 13.5-13.64 GHz.It exhibits reasonably high and stable maximum gains of 5.26 dBi,7.97 dBi and 10.1 dBi and maximum efficiencies of 64%,92%and 98%at the three bands,respectively.Moreover,in the second band,the main beam angle shows a frequency dependence with a total scanning angle of 19°.The miniaturized triple-band antenna has a great potential in wireless communication systems,satellite communication and radar systems. 展开更多
关键词 odd modes waveguide resonatorwhich triple band antenna end fire antenna feeding methodthree spoof surface plasmonic polariton sspp waveguide communication channels miniaturized antenna
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Evaluation of three lymph node staging systems for prognostic prediction in gastric cancer:A systematic review and meta-analysis
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作者 Ming Cheng Yang Yu +8 位作者 Takehiro Watanabe Yutaro Yoshimoto Sanae Kaji Yukinori Yube Munehisa Kaneda Hajime Orita Shinji Mine You-Yong Wu Tetsu Fukunaga 《World Journal of Gastrointestinal Oncology》 2025年第3期334-348,共15页
BACKGROUND Lymph node status is a critical prognostic factor in gastric cancer(GC),but stage migration may occur in pathological lymph nodes(pN)staging.To address this,alternative staging systems such as the positive ... BACKGROUND Lymph node status is a critical prognostic factor in gastric cancer(GC),but stage migration may occur in pathological lymph nodes(pN)staging.To address this,alternative staging systems such as the positive lymph node ratio(LNR)and log odds of positive lymph nodes(LODDS)were introduced.AIM To assess the prognostic accuracy and stratification efficacy of three nodal staging systems in GC.METHODS A systematic review identified 12 studies,from which hazard ratios(HRs)for overall survival(OS)were summarized.Sensitivity analyses,subgroup analyses,publication bias assessments,and quality evaluations were conducted.To enhance comparability,data from studies with identical cutoff values for pN,LNR,and LODDS were pooled.Homogeneous stratification was then applied to generate Kaplan-Meier(KM)survival curves,assessing the stratification efficacy of three staging systems.RESULTS The HRs and 95%confidence intervals for pN,LNR,and LODDS were 2.16(1.72-2.73),2.05(1.65-2.55),and 3.15(2.15-4.37),respectively,confirming all three as independent prognostic risk factors for OS.Comparative analysis of HRs demonstrated that LODDS had superior prognostic predictive power over LNR and pN.KM curves for pN(N0,N1,N2,N3a,N3b),LNR(0.1/0.2/0.5),and LODDS(-1.5/-1.0/-0.5/0)revealed significant differences(P<0.001)among all prognostic stratifications.Mean differences and standard deviations in 60-month relative survival were 27.93%±0.29%,41.70%±0.30%,and 26.60%±0.28%for pN,LNR,and LODDS,respectively.CONCLUSION All three staging systems are independent prognostic factors for OS.LODDS demonstrated the highest specificity,making it especially useful for predicting outcomes,while pN was the most effective in homogeneous stratification,offering better patient differentiation.These findings highlight the complementary roles of LODDS and pN in enhancing prognostic accuracy and stratification. 展开更多
关键词 Gastric cancer Prognostic predictor Overall survival META-ANALYSIS Pathological lymph nodes Positive lymph node ratio Log odds of positive lymph nodes
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Determining the parameters and chemical behaviour of the overdriven detonation reaction zone of CL-20-based aluminized explosives
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作者 Moyan Liu Yan Liu +3 位作者 Fan Bai Hongfu Wang Shanyong Chu Fenglei Huang 《Defence Technology(防务技术)》 2025年第5期46-66,共21页
The new CL-20(hexanitrohexaazaisowurtzitane)type aluminized explosives in the overdrive detonation(ODD)conditions of the core problem is how to accurately represent the state of the overdrive detonation products.To th... The new CL-20(hexanitrohexaazaisowurtzitane)type aluminized explosives in the overdrive detonation(ODD)conditions of the core problem is how to accurately represent the state of the overdrive detonation products.To this end,this paper is based on the impedance matching method to test the ODD conditions of CL-20 type aluminium explosive particle velocity.Calculated the interfacial pressure of the shock wave in different media.Determined the characteristic parameters of the reaction zone of the detonation of CL-20 aluminized explosives.Calibrated the parameters of the JoneseWilkinseLee(JWL)+γ equation for the detonation products(DPs).Revealed the effect of different DPs equation of state(EOS)on the Hugoniot pressure of ODD.The results indicate that when the content of aluminum powder ranges from 0%to 30%,the duration of the ODD reaction zone and the width of the detonation reaction zone of the CL-20-based aluminized explosive are directly proportional to the content of aluminum powder.The width of the detonation reaction zone is increased by 1.97 times to 2.7 times compared to that of the reaction zone without the addition of aluminum powder.However,the energy release efficiency of the detonation reaction zone is inversely proportional to the content of aluminum powder.When the aluminum powder content was held constant,the incorporation of AP caused a 25%reduction in the energy release efficiency of the detonation reaction zone.Compared with existing ODD state equations,the JWL +γ equation is superior in calibrating overpressure Hugoniot data and the isentropic expansion in the C-J state.The deviation between calculated pressure results and experimental measurements is within 6%. 展开更多
关键词 Equation of state for ODD CL-20-based aluminized explosives Detonation reaction zone Impedance matching Interfacial particle velocity
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A New Extension Odd Generalized Exponential Model Using Type-Ⅱ Progressive Censoring and Its Applications in Engineering and Medicine
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作者 Zohra A.Esaadi Rabab S.Gomaa +2 位作者 Beih S.El-Desouky Ehab M.Almetwally Alia M.Magar 《Computer Modeling in Engineering & Sciences》 2025年第8期2063-2097,共35页
A new extended distribution called the Odd Exponential Generalized Exponential-Exponential distribution(EOEGE-E)is proposed based on generalization of the odd generalized exponential family(OEGE-E).The statistical pro... A new extended distribution called the Odd Exponential Generalized Exponential-Exponential distribution(EOEGE-E)is proposed based on generalization of the odd generalized exponential family(OEGE-E).The statistical properties of the proposed distribution are derived.The study evaluates the accuracy of six estimation methods under complete samples.Estimation techniques include maximumlikelihood,ordinary least squares,weighted least squares,maximumproduct of spacing,Cramer vonMises,and Anderson-Darling methods.Twomethods of estimation for the involved parameters are considered based on progressively type Ⅱ censored data(PTⅡC).These methods are maximum likelihood and maximum product of spacing.The proposed distribution’s effectiveness was evaluated using different data sets from various fields.The proposed distribution provides a better fit for these datasets than existing probability distributions. 展开更多
关键词 Odd generalized exponential distribution likelihood and product of spacing progressive censoring progressive typeⅡcensoring
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Molecular and cellular mechanisms of pentadecanoic acid
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作者 Joseph Mercola 《World Journal of Biological Chemistry》 2025年第4期1-21,共21页
Pentadecanoic acid(C15:0)is an odd-chain fatty acid,theβ-oxidation of which yields propionyl-CoA that replenishes succinyl-CoA and tricarboxylic acid cycle flux;higher circulating levels are associated with reduced t... Pentadecanoic acid(C15:0)is an odd-chain fatty acid,theβ-oxidation of which yields propionyl-CoA that replenishes succinyl-CoA and tricarboxylic acid cycle flux;higher circulating levels are associated with reduced type 2 diabetes,cardiovascular disease,metabolic dysfunction-associated steatotic liver disease,and mortality.Summarize the cellular and molecular mechanisms underlying these associations.A comprehensive literature search(2000-2025)identified studies of C15:0’s mechanistic actions in vitro and in vivo,and multi-omics studies focused on receptor binding,signaling cascades,gene expression,and comparative pharmacology.C15:0 is a dual partial peroxisome proliferator-activated receptorα/δagonist.It activates AMP-activated protein kinase,suppresses mechanistic target of rapamycin,and selectively inhibits histone deacetylase 6.It augments succinate-driven complex II respiration,preserves mitochondrial membrane potential,limits reactive oxygen species,and attenuates interleukin-6(IL-6)–triggered Janus kinase 2/signal transducer and activator of transcription 3 and nuclear factor kappa B p65 signaling,lowering monocyte chemoattractant protein-1,tumor necrosis factor-alpha,and IL-6.Across the BioMAP®human-primarycell platform–which tests 12 distinct primary human cell systems such as endothelial cells,fibroblasts,macrophages,and T-cells–C15:0(17μM)produced statistically significant changes in 36 mechanistically diverse biomarkers.This broad,multipathway modulation mirrors the phenotype produced by metformin and rapamycin,yet occurred with no detectable cytotoxicity,paralleling metformin and rapamycin with negligible cytotoxicity.C15:0 engages receptor targets that converge on enhanced lipid oxidation,cellular energetics,and inflammation resolution.Although prospective clinical outcomes are still lacking,the pleiotropic mechanism profile positions C15:0 as a potentially unique nutraceutical or adjunct therapeutic candidate.Further research is warranted to confirm its clinical impacts,optimize dosing,and clarify long-term safety as an essential fatty acid supporting metabolic and immune homeostasis. 展开更多
关键词 Pentadecanoic acid Peroxisome proliferator activated receptors Adenosine monophosphate activated protein kinase Mitochondrial bioenergetics Histone deacetylase six inhibition Anti-inflammatory signaling Odd chain saturated fatty acids Metabolic health Nutraceutical potential
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父母心理控制与ODD症状儿童抑郁、攻击行为的关系 被引量:14
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作者 蔺秀云 李龙凤 +3 位作者 黎燕斌 王中会 陈琦 方晓义 《心理发展与教育》 CSSCI 北大核心 2014年第6期635-645,共11页
以北京市、山东省和云南省14所小学中的340名有对立违抗障碍(Oppositional Defiant Disorder,ODD)症状的儿童及其158名班主任为被试,收集了儿童自己填写的父母心理控制、自尊、抑郁量表,班主任评估的儿童攻击行为量表,用以考察父亲与母... 以北京市、山东省和云南省14所小学中的340名有对立违抗障碍(Oppositional Defiant Disorder,ODD)症状的儿童及其158名班主任为被试,收集了儿童自己填写的父母心理控制、自尊、抑郁量表,班主任评估的儿童攻击行为量表,用以考察父亲与母亲心理控制对ODD症状儿童抑郁、攻击行为的不同影响,以及自尊在其中的中介作用和儿童性别的调节作用。结果发现:(1)与有ODD症状的女孩相比,具有ODD症状的男孩人数更多,抑郁、攻击行为问题更为严重,自尊也更差;(2)父亲对男孩的心理控制显著多于女孩,而母亲对男孩、女孩的心理控制没有显著差异;(3)父亲和母亲心理控制与ODD症状儿童的抑郁、攻击行为都呈显著正相关且父亲心理控制能显著预测儿童的抑郁和攻击行为,而母亲心理控制能显著的预测攻击行为;(4)自尊在父亲心理控制与ODD症状儿童的抑郁、母亲心理控制与儿童的攻击行为之间均起部分中介作用,在父亲心理控制与儿童的攻击行为、母亲心理控制与儿童的抑郁之间均起完全中介作用。 展开更多
关键词 ODD症状儿童 父母心理控制 自尊 抑郁 攻击行为
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利用有序差异显示技术克隆受稻瘟病菌诱导表达的水稻cDNA的研究 被引量:3
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作者 罗文永 李晓方 +3 位作者 胡骏 刘文华 肖昕 刘良式 《生物化学与生物物理进展》 SCIE CAS CSCD 北大核心 2004年第7期635-642,共8页
利用有序差异显示技术 (ODD)分析受稻瘟病菌诱导表达的水稻基因 ,通过反式RNA印迹进行辅助筛选 ,获得了 37个在接种稻瘟病菌后表达量增强的水稻cDNA克隆 .采用RNA印迹对其中 5个克隆在接种稻瘟病菌后的表达分析表明 ,这些克隆在抗病以... 利用有序差异显示技术 (ODD)分析受稻瘟病菌诱导表达的水稻基因 ,通过反式RNA印迹进行辅助筛选 ,获得了 37个在接种稻瘟病菌后表达量增强的水稻cDNA克隆 .采用RNA印迹对其中 5个克隆在接种稻瘟病菌后的表达分析表明 ,这些克隆在抗病以及感病的水稻株系中都具有诱导表达的特点 .根据序列同源性分析 ,与这些克隆序列相应的同源基因可能涉及抑制病原菌生长、清除真菌毒素、传递抗病信号以及调节宿主生理状态等几方面的功能 . 展开更多
关键词 有序差异显示技术(ODD) 水稻 稻瘟病菌 CDNA 克隆
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父母亲职压力与儿童对立违抗行为的关系:一项交叉滞后分析 被引量:6
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作者 蔺秀云 黎燕斌 +2 位作者 张玉麟 何杰 方晓义 《心理与行为研究》 CSSCI 北大核心 2015年第2期153-161,170,共10页
采用亲职压力量表和对立违抗行为表现评估表调查了来自北京、山东和云南三地14所小学有ODD(oppositional defiant disorder)行为表现的301名儿童及其父母。通过为期两年的追踪研究,采用交叉滞后分析探讨了父母亲职压力与儿童的ODD行为... 采用亲职压力量表和对立违抗行为表现评估表调查了来自北京、山东和云南三地14所小学有ODD(oppositional defiant disorder)行为表现的301名儿童及其父母。通过为期两年的追踪研究,采用交叉滞后分析探讨了父母亲职压力与儿童的ODD行为之间的关系。结果发现:(1)在第一年和第二年的数据中,父母亲职压力和儿童的ODD行为表现均存在显著正相关;(2)第一年和第二年的父母亲职压力得分显著正相关,同样,两年的儿童ODD行为表现得分也显著正相关;(3)交叉滞后分析发现,对于有ODD行为表现的男孩来说,其父母第一年的亲职压力能预测他们第二年的ODD行为表现,但对于有ODD行为表现的女孩来说,其父母第一年的亲职压力并不能预测她们第二年的ODD行为表现;而不管是男孩,还是女孩,第一年的ODD行为表现都不能预测第二年的父母亲职压力。研究结果揭示出男孩父母的亲职压力可预测男孩的ODD行为表现,而不论是男孩或女孩的ODD行为表现都不能预测其父母亲职压力,说明父母亲职压力可能是男孩ODD行为表现的影响因素。 展开更多
关键词 儿童 亲职压力 ODD行为表现 交叉滞后分析
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对立违抗儿童家庭问题分析 被引量:3
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作者 蔺秀云 李文琳 +3 位作者 李泽 王中会 范腾燕 刘杨 《北京师范大学学报(社会科学版)》 CSSCI 北大核心 2014年第3期23-32,共10页
对立违抗障碍(Oppositional Defiant Disorder,ODD)是一种以对权威人物的抗拒、挑衅、公然违抗、敌对等行为为典型特征的儿童破坏性行为障碍。通过对29组被评定为ODD的有隔代抚养独生子女儿童及其家长、教师的访谈分析发现,ODD儿童不仅... 对立违抗障碍(Oppositional Defiant Disorder,ODD)是一种以对权威人物的抗拒、挑衅、公然违抗、敌对等行为为典型特征的儿童破坏性行为障碍。通过对29组被评定为ODD的有隔代抚养独生子女儿童及其家长、教师的访谈分析发现,ODD儿童不仅会对抗家长、教师等权威人物,消极抵制或公然违抗家长、教师的指令,而且容易在同伴交往中被激惹或故意激惹他人,对他人的无意行为反应过度,甚至失去控制打骂他人。从家庭系统的角度分析访谈内容发现,ODD儿童的症状更多是家庭问题的呈现,而家庭互动方式和家庭关系则是导致症状产生的主要家庭原因。其中,家庭互动方式是直接的浅层次的原因,而家庭关系则是隐藏在背后的深层次原因。在家庭互动方式上,ODD儿童的家庭整体水平(如家庭亲密度低、家庭冲突性高)、互动水平(父母对待孩子高要求和控制、溺爱与纵容、教养不一致、情感虐待)和个体水平(父母的自卑与补偿、期待投射)都存在较多问题。在家庭关系上,ODD儿童的家庭存在儿童亲职化、替罪羔羊、跨代联盟、等级结构和多代传递等问题。隔代抚养、独生子女的问题会在具体家庭互动方式和家庭关系中体现出来并影响到ODD儿童的症状。 展开更多
关键词 ODD儿童 不良情绪和行为表现 家庭互动方式 家庭关系
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几株机油降解菌及其处理含油废水的效果 被引量:4
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作者 秦芳玲 曹丽娟 +1 位作者 燕永利 李便琴 《油田化学》 CAS CSCD 北大核心 2007年第3期269-271,282,共4页
以20号机油为唯一碳源,用无机培养基在30℃摇床培养7 d,从中原油田采油污水和咸阳炼油厂活性污泥中分离出10株烃降解菌。在进一步摇床培养中,从10株菌中得到了对20号机油降解能力最强的3个菌株Ⅰ12、Ⅰ13及Ⅱ3,其除油率分别为37.2%、38... 以20号机油为唯一碳源,用无机培养基在30℃摇床培养7 d,从中原油田采油污水和咸阳炼油厂活性污泥中分离出10株烃降解菌。在进一步摇床培养中,从10株菌中得到了对20号机油降解能力最强的3个菌株Ⅰ12、Ⅰ13及Ⅱ3,其除油率分别为37.2%、38.8%及47.5%,在重复3次的摇瓶培养中,除油率分别为34.5%、36.7%及23.4%。在培养时间筛选实验中,求得Ⅰ13菌株在30℃摇床培养3 d时,除油率达到最大,培养液pH降至最小。将Ⅰ12、Ⅰ13及Ⅱ3 3株菌株用于某石化厂含油污水(含油量661.7 mg/L,CODcr值1977.3 mg/L)处理,30℃摇瓶培养3 d,重复3次,求得除油率分别为45.4%、44.1%及36.7%,CODcr去除率分别为18.4%、55.7%及32.0%。图1表3参6。 展开更多
关键词 烃降解菌 分离培育 机油 含油污水 微生物处理 污水处理 除油 ODD去除
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厌氧-好氧一体化反应器处理高浓度有机废水的运行特性研究 被引量:6
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作者 肖鸿 杨平 郭勇 《四川环境》 2005年第2期4-7,10,共5页
本实验采用新型厌氧—好氧一体化反应器处理高浓度有机废水,主要研究了系统的启动与运行性能,并对系统的NH3 N去除效果作了初步考察。实验结果表明:在16℃~24℃的自然温度下,采用递增负荷、厌氧和好氧分期启动的方式,系统可在38天内达... 本实验采用新型厌氧—好氧一体化反应器处理高浓度有机废水,主要研究了系统的启动与运行性能,并对系统的NH3 N去除效果作了初步考察。实验结果表明:在16℃~24℃的自然温度下,采用递增负荷、厌氧和好氧分期启动的方式,系统可在38天内达到较好的启动效果;在系统负荷运行期内,当系统总进水COD浓度平均值为3601 8mg/L,总出水COD浓度平均值为384 0mg/L,系统容积负荷平均值为2 54kgCOD/(m3·d),系统总HRT平均值为35 1h时,系统总COD去除率平均值达90 6%。实验还发现:当进水NH3 N浓度为280 3~350 7mg/L,整个系统的NH3 N去除率在68 5%~91 7%,平均为81 0%。由此说明,本反应器具有很好的COD去除性能和NH3 N去除效果,适合于处理COD浓度高且含有中等NH3 N浓度的有机废水。 展开更多
关键词 厌氧-好氧一体化反应器 生物流化床 ODD NH3-N 废水处理
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On the Problem of All Equal Positive Odd Number Solutions of the Dissemination of the Ends' Guess 被引量:1
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作者 刘元宗 《Chinese Quarterly Journal of Mathematics》 CSCD 2000年第2期108-109,共2页
The thesis is concerned with the problem of the dissemination of the Ends’ guess and offers the formula of all equal positive odd number solutions.
关键词 Ends’ guess DISSEMINATION all equal positive odd number solutions
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odds ratio在医学动物实验中的应用
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作者 迟琼 邹泽红 +1 位作者 傅意玲 陶爱林 《中国药理学通报》 CAS CSCD 北大核心 2010年第3期408-410,共3页
目的分析odds ratio在医学动物实验中的应用现状。方法以医学动物实验中常用动物模型及优势比或odds ra-tio为检索式进行搜索,分别对比分析中外数据库中7种动物模型实验中应用odds ratio的状况。同时,给出范例,说明OR值的计算方法及不... 目的分析odds ratio在医学动物实验中的应用现状。方法以医学动物实验中常用动物模型及优势比或odds ra-tio为检索式进行搜索,分别对比分析中外数据库中7种动物模型实验中应用odds ratio的状况。同时,给出范例,说明OR值的计算方法及不同结果的实际意义。结果动物模型实验中使用OR值作为统计指标的寥寥无几。结论OR值的重要性在国内没有得到足够的关注。 展开更多
关键词 数据库 动物模型 优势比 odds RATIO 关联强度 检索式
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Selective Alignment of D2 Induced by Two Ultrashort Laser Pulses
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作者 杨增强 郭志荣 葛桂贤 《Chinese Journal of Chemical Physics》 SCIE CAS CSCD 2009年第3期228-234,339,共8页
The dynamics of molecular rotational wave packets of D2 induced by ultrashort laser pulses was investigated numerically by solving the time-dependent SchrSdinger equation. Results show that an ultrashort pulse can man... The dynamics of molecular rotational wave packets of D2 induced by ultrashort laser pulses was investigated numerically by solving the time-dependent SchrSdinger equation. Results show that an ultrashort pulse can manipulate a coherent rotational wave packet of D2 se- lectively. In the calculation, a first laser pulse was used to create a coherent rotational wave packet from an initial thermal ensemble of D2 at the temperature of 300 K. The second laser pulse was used to manipulate the rotational wave packet selectively around the first quarter and the three quarters revival. The alignment parameter and its Fourier transform amplitude both illustrate that the relative populations of even and odd rotational states in the final rotational wave packet of D2 can be manipulated by precisely selecting the time delay between the first and the second ultrashort pulse. 展开更多
关键词 Rotational wave packet Ultrashort laser pulse Time delay Odd and evenstates
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