无结果

This method consists of two steps: first, the image is divided into numbers of nonoverlapping blocks and the GMRF parameters are computed for each of these blocks, then a clustering method is used to merge these blocks, a coarse segmentation and texture types of the image are obtained. Second, a deterministic relaxation neural network is constructed, the parameters of the model estimated from the first step are used as input data, through neural network computation, a fine segmentation is obtained.

提出一种基于高斯-马尔可夫随机场和神经网络的无监督纹理分割方法，方法分为两步：第一步先将图像分为不重叠的小块，在小块中计算GMRF参数，并将此参数和该块的均值、方差作为该块的特征向量，然后进行聚类，得到原图像的一个初始分割和图像中所包含的类别数；第二步构造一个决定性松弛的神经网络，将第一步得到的结果作为初始输入，经过神经网络计算，得到一个精确的分割结果。

Results All the children and their parents received interviews, otological examinations and clinical audiolugical teats. Their ages were between 4 and 15, with the average at 9.51±2.83.①The males were 341 (61.66%) and female 212 (38.34%), with the gender ratio of male to female as 1.61:1.②The peak of the age curves of treatment and the first onset of vertigo was 9.51 and 8.62-year-old, respectively.③20.98% of children with vertigo had normal results with peripheral vertigo more common in the rest.④ The semicircular canals were more likely to dysfunction if their relatives had vertigo or car sickness.

结果 ①553例儿童年龄4~15岁，平均9.51±2.83岁；男341例(61.66%)、女212例(38.34%)，男女之比为1.61：1；②就诊年龄和初次眩晕发病年龄的高峰期分别在9.51岁和8.62岁，发病无季节性，主要症状为自身或视物旋转，发作持续时间为数分钟至数小时；③约20.98%的儿童眩晕患者各项检查结果均正常，异常组中以外周性眩晕多见(78.04%， 341/437)，半规管功能异常者占63.83%(353/553)；④256例眩晕儿童直系家属中有眩晕史，其中171例(66.80%)出现水平半规管功能异常。

Results:Comparing to the control group, the proliferation of overexpressed p16 QBC939 cells was inhibited and p16 overexpress induced G1 phase blockade.

结果：与对照组相比，p16高表达的人胆管癌细胞QBC939的增殖受到明显抑制；流式细胞光度术表明p16的高表达导致了较为明显的G1期阻滞作用，但对细胞周期的其他时相并无影响；Western免疫印迹分析结果表明癌基因c-myc的蛋白水平表达下降。

Objective: Presymptomatic gene diagnosis of autosomal dominant polycystic kidney disease families by PCR Methods: Genomic DNA were extracted Highly polymorphic microsatellite markers(SM7, AG2 5, KG8, CW2) linked to the PKD1were amplified using PCR Ten ADPKD families (104 members,including 28 affected) were analysed Results: Nine children were diagnosed with presymptomatic gene diagnosis ,although all children presented a negative ultrasonic diagnosis Conclusion: The presymptomatic gene diagnosis ...

目的：应用PCR方法对常染色体显性遗传性多囊肾病家系进行症前基因诊断。方法：用PCR扩增与PKD1位点连锁的的高度多态性的微小卫星体DNA（SM7，AC2.5，KG8，CW2）为遗传标记，对10个ADPKD家系的104个成员（包括28个患者）找出染色体上与疾病连锁的单体型，进行连锁分析。结果：对9个无临床症状，且B超检查呈阴性结果的儿童做出了症前基因诊断。结论：能够应用PCR方法对ADP－KD家系成员快速、准确地做出基因诊断

Transcriptional activity of ACL recombinants normalized by Renilla was significant difference with pGL3-Basic expect for construct -27 and -15 (P＜0.01). Construct -919 contains highest activity. 3 times reduction of transcriptional activity from-919 to -679bp indicated that negative regulation factors located probably in this region. The activity started on construct -73 suggested the basal promoter activity was located within the -73 to +77bp region; Transcriptional activity of IDHβrecombinants was not significantly different between the recombinant -58 and pGL3-Basic. The activity started on construct -82, decreasing with the length of the fragment up to -164 in despite of a bit of fluctuation, and kept increasing from construct -164 up to -279. Thus, the basal promoter activity was located within the -82 to +16bp region, whereas the upstream 197bp conferred maximal transcriptional activity.

采用5'端缺失策略，结合启动子预测结果，分别构建了8个ACL基因和19个IDH3β基因启动子区重组子，将其转染猪PK15细胞系，并利用荧光素酶双报告基因系统检测了它们的活性，结果表明：在所构建的猪ACL基因5侧翼序列的8个重组子中，除pGL-ACL27和pGL-ACL15外，其它重组子的荧光素酶活性与阴性对照均达到极显著水平(P＜0.01)，表明它们均具有启动子活性，pGL-ACL919活性最强，到pGL-ACL679活性下降了将近3倍，说明从-919bp到-679bp区域可能存在负的调控位点，从pGL-ACL621到pGL-ACL73活性有小幅度下降，到pGL-ACL27活性降到与阴性对照水平无显著差异，表明维持该启动子的基本活性区域位于-73bp到+77bp之间；IDH3β基因启动子活性开始于pGL-IB82，然后虽然有些波动，但是活性一直下降直到-164bp处，之后活性又开始升高，直到-279bp处活性达到最高，这些表明维持该启动子的基本活性区域位于-82bp到+16bp之间，从-82到-279之间的179bp区域具有最高的启动子活性。

Also in this chapter, chemometrics methods were applied to improve the discriminating ability of SEQUEST and Mascot search results.

但对于Mascot搜索结果，这些方法无明显提高结果中的准确率。

By analyzing the strange behaviors of massless integrations in dimensional regularisation, It was proposed that for a special kind integration, which is sero mathmatically, should not be simply treated as sero physically, as a fact it is the difference of the same magnitude ultraviolet divergence and infrared divergence.

通过研究维数正规化中的无质量积分的奇妙特性，本文指出对一种特殊类型的动量积分，从数学上看DR给出的结果为零，但物理上不能把结果简单处理为零，而是反映了大小相等的紫外和红外发散之差。

The influencing factors were gender, mental problem, paren ts divorced, relationship of family member, self-assessment of mental health, d issatisfaction about own figures, economic level and depression.conclus ion suicidal ideation causes by biological,psychological and sociologic al factors.

结果 大学生自杀意念报告率为19.76%；性格特点为敏感、多疑、紧张、少与人相处、多幻想、心理健康水平差等；性别、有无心理问题、父母是否离异、家庭成员关系、心理健康自我评价、常为自己的容貌及外表苦恼、对自己的评价、经济状况、抑郁状况等因素为引起自杀意念的个体和社会因素。结论自杀意念的形成是生物学、心理学与社会学综合作用的结果。

Methods 81 cases with seminal spermatogenic cells examination results were analyzed and compared with the results of epididym puncture biopsy.

分析81例无精子症患者精液生精细胞学检查结果，与睾丸穿刺活检结果对照分析。

The phase diagrams of KF-NaF-AlF〓 system were calculated by Toop's model.

将Muggianu模型和Toop模型的计算结果与实验相比较，发现在无三元相互作用校正项时，Toop模型能够较好地预报此类三元系相图；在有三元较正项的情况下，两个模型计算结果基本一致。

And discuss some key point of integrated management system design, include hazard identification and risk assessment and risk control in the occupational health and safety management, the measure of satisfaction target of customer, the flawlessness of law system, the integration of the integrated management system and enterprise standardization system, unify lead institution and work orgnization, integreted internal audit and integrated management review.

同时，论述了一体化管理体系构建中的几个主要问题，包括职业健康安全管理中的危险源辨识、风险评价和风险控制、顾客满意度的科学监测、法律、法规体系的完善、一体化管理体系与企业标准化体系的有机结合、统一的领导机构和工作机构、一体化的内部审核和管理评审。

Deepwater Taranaki is investigated for its petroleum potential, using all available seismic data tied to shallow-water wells.

运用与浅水井相关的现有全部震波探测数据考察了深海区塔拉纳基盆地的油藏前景。