多元模糊回归预测白背飞虱主害代发生程度

白背飞虱Sogatellafrucifera（Horvath）是水稻上主要害虫之一,在我县以三、四代为主客代,以三代为主。本文试通过多元模糊回归分析［1］,建立白背飞虱主害代发生程度的模糊隶属函数集,对历史资料回代验证,结果拟合率达100％,对独立样本试报,预报趋势是正确的。1研究方法多元模糊回归分析是处理多元模糊变量的一种方法,它建立在模糊多变量关系基础上。具体步骤为：（1）把预报对象y的N个样本,按一定的标准划分为G个级别。再把M个预报因子的N个样本,根据分级后y的原样本序号,相应地划分为G个级别。（2）计算各预报因子的各级别…     

模糊数学综合评判麦蚜发生量(程度)预测预报技术的研究

麦蚜是常发性害虫,也是影响小麦生产的一类主要害虫。当地主要为害种类有：麦长管蚜Macrosiphumavenac（Fabricius）、麦二叉蚜Schizaphisgraminum（Rondani）、禾缢管好RhopalosiphumPadi（L．）等。麦蚜的发生为害受自然环境诸多因素的影响,综合分析其发生规律和主要影响因素,均属于模糊信息和模糊概念。用模糊数学（Fuzzymachenatics）的方法处理模糊概念、信息,从而求得数量规律。这就把经验预报的模糊指标转化为定量指标,沟通了定性和定量表示的联系,然后作出较精确的判断。我们对天水地区12年（1979～1990年）麦蚜发生量（…     

基于HIFU回波信号和多尺度模糊熵的生物组织变性识别研究

为了解决高强度聚焦超声（HIFU）治疗中的监测问题,在无需引入其他监测源的情况下,通过研究HIFU回波基波与二次谐波的多尺度模糊熵（MFE）,提出了一种生物组织变性辨析新方法。HIFU回波信号通过谱减法去噪后,利用信息散度优化的变分模态分解（KLD-VMD）提取其基波与二次谐波分量,然后结合基波与二次谐波的MFE对组织进行变性识别,并使用等错误概率（EER）评价了该方法的有效性。最后,研究还比较了KLD-VMD与VMD、经验模态分解（EMD）和固有时间尺度分解（ITD）等其他分解方法,结合MFE分析了其辨析变性组织的能力。试验结果表明：基于KLD-VMD和MFE的组织变性识别其EER达到5.1%,相较于其他方法表现出了更好的识别效果;结合基波和二次谐波的识别结果比使用单一特征参数更好。该研究为HIFU治疗提供了一种新的监测方法,具有潜在的实际应用价值。     

豫西黄土高原农作区鼠类群落结构的研究：模糊聚类分析及三种相似指标的比较

运用模糊聚类方法,探讨豫西农作区鼠类群落分类及其与农田斑块生境的关系,比较百分率相似系数（ＰＳ）、相关系数（ｒ）和夹角余弦（Ｃｏｓ）３种相似指标。发现ｒ的聚类结果与农田斑块生境具显著的相依性（Ｐ＜０．０２５）。故将该地鼠类群落划分为棕色田鼠＋大仓鼠亚群落及大仓鼠＋棕色田鼠亚群落。同时,比较２个亚群落的物种数、多度和多样性Ｓｈａｎｎｏｎ指数的差异．     

粗糙集模糊聚类分析法在昆虫分类研究中的应用

本文根据昆虫图像,对半翅目、鳞翅目、鞘翅目的28种昆虫提取的形状参数、叶状性、球状性等7项数学形态特征进行了粗糙集模糊聚类分析。在粗糙集处理的基础上,分别进行7指标和3指标（相对约简）两种不同的模糊聚类分析法相比较。结果显示,在作为目级阶元分类指标时,各项特征的重要性依次为：(似圆度、偏心率)＞（亮斑数、球状性、圆形性）＞（叶状性、形状参数）;粗糙集分类正确率优于模糊聚类分析法;粗糙集处理后的3指标分类正确率优于未处理的7指标分类正确率。结论认为,粗糙集理论在昆虫依据数学形态特征进行分类方面与统计分析方法相比更有优势,粗糙集滤过指标后再进行模糊聚类法分析在昆虫分类研究上具有重要意义。     

豫西黄土高原农作区鼠类群落结构的研究：模糊聚类分析及三种相似指标的比

运用模糊聚类方法,控制豫西农作区鼠类群落分类及其与农田斑块生境的关系,比较百分率相似系数（ＰＳ）,相关系数（ｒ）和夹角余弦（Ｃｏｓψ）３种相似指标,发现ｒ的聚类结果与农田斑块生境具显著的相依性（Ｐ〈０．０２５）,故将该地鼠类群落划分棕色田鼠＋大仓鼠亚群落及大仓鼠＋棕色田鼠亚种群落,同时,比较２个亚群落的物种数,多度和多样性Ｓｈａｎｎｏｎ指数的差异。     

岷江上游景观变化评价

通过NetWeaver设计模糊知识库,利用EMDS模型定量评价了岷江上游1986--2000年景观变化．结果表明：整个流域景观的斑块类型、面积、数量及空间配置均发生了较大变化,且朝着有利于生态恢复的方向变化．森林类型的变化主要发生在北部（松潘县和黑水县）．草地类型的变化主要发生在北部（松潘县）和最南部（汶川县）．流域景观变化是人类活动强度增大和自然变化共同作用的结果．     

基于模糊决策的临床科室主任绩效考核的研究

通过研究临床科室主任绩效考核指标,调动科室主任管理的积极性,增强科室员工质量管理意识和医疗安全意识,促进医院的发展。在分析传统临床科室绩效考核方法不足的基础上,结合模糊决策的概念,提出了一种基于模糊决策的临床科室主任综合评判方法。该方法充分利用了模糊逻辑中模糊决策的概念,对医院临床科室主任进行了模糊意见集中决策和模糊综合评判决策。最后通过具体的数值实验对该方法进行了性能分析,结果证明该方法具有良好的性能。     

我国模糊网纹溞（甲壳纲：双甲目）的补充描述

我国模糊网纹溞（甲壳纲：双甲目）的补充描述陈受忠,张世萍,宋希强中国科学院水生生物研究所武汉４３００７２华中在业大学水产系日本Ｕｅｎｏ氏在记述中国台湾的枝角类一文￣［２］的名录表中列入了模糊网纹（Ｃｅｒｉｏ－ｄａｐｈｎｉａｄｕｂｉａＲｉｃｈａｒｄ,１...     

Fuzzy分析方法在越冬代三化螟蛾高峰期预报的应用

目前,用于害虫发生期测报的数学方法甚多,比较精确的一类方法是数理统计预测法,如综合相关,多元线性回归等[1～4]。实践证明,这些方法在一些情况下具有较高的准确性。但是,这类方法多数是建立在预报因子与预报对象的线性关系上,而大多数情况下预报因子与预报对象不表现这种关系。因此,有必要对这些方法进行改进。本文用模糊（Fuzzy）分析方法预报他各代三化螟蛾高峰,较好地解决了这些问题。观依据将乐23年历史资料,通过相关筛选法,选取x1：上年11月至当年2月极端最低气温（℃）;x2：3月平均地温（℃）x3：3月而日（天）ZX。：…     

A genome-based study of the Muslim Hui community and the Han population of Liaoning Province, PR China.

To investigate the proposed historical origins of the Hui, a Chinese Muslim minority resident in Liaoning Province, PR China, DNA samples obtained from 53 individuals were analyzed at ten autosomal and six Y-chromosome microsatellite loci. As reference sources, equivalent samples were investigated from the coresident Han majority population. Both the Hui and the Han exhibited appreciable genetic heterogeneity in terms of the size, number, and size range of alleles, suggestive of population substructure resulting from their particular cultural and historical backgrounds. The contrast in the patterns of autosomal and Y-chromosome diversity of the two communities was obvious. Analysis of molecular variance showed that only 4.6% of total autosomal molecular variance was due to differences between the Hui and Han. The comparable value for Y-chromosome haplotype distributions of 14.0% indicated that the Hui and Han of Liaoning have separate paternal genetic histories.     

山东汉、回族男性人群父系遗传结构研究

本研究基于75个Y-SNP位点和23个Y-STR基因座对山东汉、回族男性人群进行研究,旨在揭示两个人群的父系遗传结构,为法医学应用及群体遗传学等提供基础数据。研究基于微测序技术检测187份山东汉族和130份山东回族样本,获取75个Y-SNP位点分型;采用PowerPlex^®Y23试剂盒检测23个Y-STR基因座;采用直接计数法统计等位基因频率、单倍型频率及单倍群频率,根据公式D=n(1-∑pi²)/(n-1)计算基因多样性、单倍型多样性以及单倍群多样性;根据Median-joining方法,使用NETWORK 5.0和NETWORK Publisher构建并展示网络图。研究结果显示,单倍群O-M175、C-M130、N-M231、Q-M242为山东汉族男性人群主要的Y单倍群,单倍群O-M175、J-M304、R-M207、C-M130、N-M231为山东回族男性人群最主要的单倍群;23个Y-STR基因座在山东汉族男性样本中检出187种单倍型,单倍型多样性为1.0000,在山东回族中检出121种单倍型,单倍型多样性为0.9988;网络图显示同一Y单倍群的样本相对独立地聚集在一起,山东汉族与回族人群之间存在共享单倍群,同时也存在一些特异性单倍群,如单倍群J-M304、R-M207均以山东回族为主,单倍群Q-M242则以山东汉族为主。山东汉族和回族男性人群的主要单倍群均为单倍群O-M175;单倍群J-M304、R-M207在山东回族中的高频分布,单倍群Q-M242则在山东汉族中高频分布。研究表明山东回族人群中保留有一定比例的欧亚西部和中东特有的Y染色体类型。     

宁夏回、汉族指纹白线的研究

分析了宁夏回族 390 例 (男 :189 例 ,女 :201 例) 、汉族 425 (男 :217 例 ,女 208 例) 指纹白线的分布特 征。结果表明 : 宁夏回族指纹白线出现率为 : 19103 % (男 : 17109 % ,女 : 20185 %) ; 汉族为 : 17155 % (男 : 16122 % ,女 :18194 %) 。同一民族指纹白线出现率女性高于男性 ,有显著性差异 (回 :χ2 = 81916 ,P < 0101 ; 汉 :χ2 = 51434 ,P < 0105) ;回、汉族间指纹白线出现率无显著性差异(χ2 = 21956 ,P > 0105) 。     

宁夏回族红细胞血型的研究

调查了219名宁夏回族的 ABO、MNSs、Rhesus、P、Lewis、Duffr、Kidd Diego 、Kell、Lutheran和Xg等11种系统的红细胞血型。结果表明,宁夏回族有较高的q(0.2530)、Fy~a(0.9270)、CDe(0.6225) 和E(0.2660) 等基因或染色体频率;d(0.0557)、s(0.0594)、P_1(0.1316)和 Le~a(0.3882)等基因频率较低;而未发现K和Lu~a基因;Di~a的频率为0.0349,也处于低水平;Ns(0.4984)连锁率高于 Ms(0.4422);Xg~a基因频率为0.4432。11个系统的红细胞血型的分布和遗传距离分析均反映了宁夏回族的遗传组成具有我国北方民族的特征,尤其接近于北方汉族和蒙古族,与新疆维吾尔族则存在较大的差异。     

Frequencies of ABO, Rh and Kell phenotypes in couples from Han, Kazak, Uyghur and Hui in Xinjiang: an inheritance simulation model for blood group incompatibility in new-born

The Xinjiang region with residents from more than 13 minorities represents an area of many diverse ethnicities. This ethnic diversity in relation to their blood groups and immune status may have a consequential impact on the clinical status of married couples. To evaluate the risks of haemolytic disease in new-born infants, we investigated the rate of blood-group incompatibility among 487 married couples from four ethnic minorities, namely the Han, Hui, Uyghur and Kazak populations. Han minority married couples showed significantly different ABO, Rh and K phenotype frequencies between marrial relationship, whereas there was no significant difference in ABO, Rh and K phenotypes between the Uyghur, Hui and Kazak .There was a significant difference between ABO blood types in Han married couples, in the Kazak Rh-C phenotype and in the Uyghur Rh-D phenotype. The Hui married couples only demonstrated ABO, Rh and K phenotypes. The Hui minority showed the highest incompatibility rate for Rh-C and Rh-E phenotypes between mothers and their new-born infants. The highest incompatibility rate for the ABO phenotype occurred in the Kazak group. These results particularly demonstrate the clinical issues relating to ABO and Rh incompatibility, in the Kazak and Hui minorities, respectively.     

Analysis of expression profile using fuzzy adaptive resonance theory

MOTIVATION: It is well understood that the successful clustering of expression profiles give beneficial ideas to understand the functions of uncharacterized genes. In order to realize such a successful clustering, we investigate a clustering method based on adaptive resonance theory (ART) in this report. RESULTS: We apply Fuzzy ART as a clustering method for analyzing the time series expression data during sporulation of Saccharomyces cerevisiae. The clustering result by Fuzzy ART was compared with those by other clustering methods such as hierarchical clustering, k-means algorithm and self-organizing maps (SOMs). In terms of the mathematical validations, Fuzzy ART achieved the most reasonable clustering. We also verified the robustness of Fuzzy ART using noised data. Furthermore, we defined the correctness ratio of clustering, which is based on genes whose temporal expressions are characterized biologically. Using this definition, it was proved that the clustering ability of Fuzzy ART was superior to other clustering methods such as hierarchical clustering, k-means algorithm and SOMs. Finally, we validate the clustering results by Fuzzy ART in terms of biological functions and evidence. AVAILABILITY: The software is available at http//www.nubio.nagoya-u.ac.jp/proc/index.html     

甘肃地区回族人群18个STR基因座的遗传多态性

研究了D5S818、D8S1179、D7S820、CSF1PO、D2S1338、D3S1358、v WA、D21S11、D16S539、Penta E、TPOX、TH01、D19S433、D18S51、FGA、D6S1043、D13S317、D12S391等18个短串联重复序列(short tandem repeats,STR)基因座在甘肃地区回族人群的遗传多态性。采用荧光标记复合扩增及毛细管电泳技术对1 038名甘肃地区回族无关个体18个STR基因座进行分析。研究结果显示,1 038名甘肃地区回族个体在18个STR基因座上,共检出223种等位基因,982种基因型,其分布均符合Hardy-Weinberg平衡(P0.05),18个基因座的杂合度(H)介于0.601~0.929之间,匹配概率(Pm)介于0.012~0.213之间,个体识别概率(DP)介于0.787~0.988之间,多态信息含量(PIC)介于0.550~0.920之间,非父排除概率(PE)值介于0.292~0.854之间。本文研究结果对甘肃地区回族人群群体遗传学及法医学后续研究应用具有参考价值。     

Genetic polymorphism analysis of 15 STR loci in Chinese Hui ethnic group residing in Qinghai province of China

In the present study, we investigated the diversity distributions of allelic frequencies of 15 short tandem repeats (STRs) loci in a sample of Chinese Hui ethnic group in the Ningxia Hui Autonomous Region. The allelic frequencies of the 15 STR loci (D8S1179, D21S11, D7S820, CSF1PO, D3S1358, TH01, D13S317, D16S539, D2S1338, D19S433, vWA, TPOX, D18S51, D5S818 and FGA) were obtained from 2975 unrelated healthy Hui individuals. The STR genotyping data of all the samples were generated by DNA extraction, multiple amplification, GeneScan and genotype analysis. The genetic distances among different populations were calculated by using Nei's method and a phylogenetic tree was constructed based on the allelic frequencies of the same 15 STR loci using the neighbor-joining method. A total of 185 alleles were observed in the Hui population, with the corresponding allelic frequencies ranging from 0.0002 to 0.5322. Chi-Square tests showed that all STR loci were in Hardy-Weinberg equilibrium. The forensic statistical parameters of all the loci showed high values. The population data in this study were compared with the previously published population data from other ethnics or areas. The Hui population showed significant differences from the Minnan Han, Uigur, Ewenki, Yi, Tibetan, Maonan and Malay ethnic minority groups in some loci, and from the South Morocco population and the Moroccan population in all the loci. Our results are valuable for human individual identification and paternity testing in the Chinese Hui population and are expected to enrich the genetic information resources of Chinese populations.     

中国13个民族7个Y-STR基因座遗传关系的研究

选择具有高度遗传多态性与稳定性的7个Y-STR位点分析宁夏回族与国内17个群体之间的群体遗传关系。采用Y-STR复合扩增、ABI全自动测序仪测序方法,结合基因扫描和自动分型技术获得150名宁夏回族个体DYS19、DYS389Ⅰ、DYS389Ⅱ、DYS390、DYS391、DYS392和DYS393七个基因座的基因频率,同时还收集国内17个群体这7个基因座的基因频率数据,计算他们间的遗传距离,进行聚类分析。结果显示:宁夏回族与北京汉族、云南汉族、安徽汉族、天津汉族、湖南汉族先聚为一类,然后与福建汉族相聚,最后与其他少数民族相聚,揭示回族与汉族在遗传结构上具有很大的相似性,为回族起源和发展过程中融入了大量汉族血缘的论点提供了遗传学证据。