东北地区100名成年人正常的软组织头影测量研究-Burston软组织分析法正常值的建立

目的建立东北地区100名成年人正常的软组织头影测量正常值数据库,进行地区、种族差异的比较。方法对100张头影测量片用Burston软组织分析法进行测量。结果建立了Burston分析法各测量指标均值及男、女两组各自的测量结果。结论东北地区成年人软组织侧貌存在性别、地区、种族差异,在正畸治疗、正颌外科手术中要予以注意。

几何尺寸组织定量分析法测量动脉壁静态工作应变

本文利用生物组织固定技术 ,发展了一种直接测量动脉壁内应变分布的方法 :组织定量应变分析法。并用该方法测量了白兔颈动脉壁在 5 0mmHg、10 0mmHg、15 0mmHg、2 0 0mmHg模拟生理载荷状态下的应变分布。将测量结果与应用张开角应变分析法得到的理论应变分布进行了比较。结果表明 :用组织定量应变分析法直接测量的环向应变分布与由理论分析得到的环向应变分布较为一致。这表明组织定量应变分析法是一个可行的直接测量动脉壁内应变的方法。同时 ,本文通过白兔颈动脉环向应变测量结果证明了均匀应变状态的存在。

常规超声改良IOTA简单法与超声造影对卵巢肿瘤的定性诊断价值比较

目的比较卵巢肿瘤定性诊断中应用常规超声改良国际卵巢癌分析组织(IOTA)简单法与超声造影的效果。方法回顾性分析行常规检查发现疑似恶性卵巢肿瘤70例患者的资料,所有患者均接受常规超声改良IOTA简单法诊断、超声造影检查,以病理学诊断为标准,判断两者及联合检查对卵巢肿瘤的定性诊断价值,比较良恶性卵巢肿瘤患者常规超声及超声造影特征。结果70例可疑患者病理学诊断结果:27例恶性(38.57%),43例良性(61.43%);改良IOTA简单法诊断结果:良性41例,恶性22例,不确定7例,卵巢肿瘤定性诊断敏感度、特异度、准确率分别为62.96%、83.72%、75.71%;恶性卵巢肿瘤患者超声特征与良性患者比较差异有统计学意义(P<0.05);超声造影诊断结果:良性37例,恶性33例,卵巢肿瘤定性诊断敏感度、特异度、准确率分别为88.89%、79.07%、82.56%;恶性卵巢肿瘤患者超声造影影像特征及定量参数与良性患者比较差异有统计学意义(P<0.05);联合检查诊断良性44例,恶性26例,卵巢肿瘤定性诊断敏感度、特异度、准确率分别为77.78%、88.37%、84.29%。结论卵巢肿瘤定性诊断中应用常规超声改良IOTA简单法和超声造影效果均较好,两者各有优劣,联合检查有助于降低单一检查造成的误诊、漏诊,提高诊断效能。

尼泊尔正常成人面部软组织侧貌头影测量分析

目的:建立尼泊尔正常成人软组织侧貌的X线头影测量正常值范围,探讨其软组织侧貌的性别特征及种族差异。方法:在重庆医科大学尼泊尔留学生中挑选正常成人70人。拍摄X线头颅侧位片,应用Winceph8.0进行描图分析,对Holdaway软组织头影测量的11项指标进行测量,用SPSS13.0统计软件对测量数据进行统计学处理。结果:得出尼泊尔正常成人Holdaway软组织分析法各项正常值。多数测量项目测量值都在Holdaway正常值标准内。男女间比较部分测量值有显著性差异。与中国人比较大部分测量值有显著性差异,尼泊尔人鼻尖高度较中国人高,面下三分之一较中国人平直。结论:尼泊尔人的软组织侧貌特征介于白种人与中国人之间。

青岛地区汉族正常成人X线头影测量HOLDAWAY法分析

目的建立青岛汉族18～25岁与26～40岁两个年龄段正常成人口腔颌面部软组织侧貌的HOLDAWAY分析法参考值,并探讨不同性别、不同年龄段间口腔颌面部软组织特点差异。方法选取青岛汉族正常且侧貌良好的样本91例,每个样本拍摄X线头颅定位侧位片。在计算机上用Winceph 8.0软件进行定点测量,所得数据使用SPSS 16.0软件进行统计学处理。结果得出了青岛汉族人18～25岁与26～40岁两个年龄段的HOLDAWAY软组织分析法的各项参考值。18～25男女性之间Ss-Pn、上唇基部厚度、上唇紧张度、Si-H差异有显著性（t=2.52～5.50,P〈0.05）。26～40岁男女性之间Ss-Ls、上唇紧张度、上唇基部厚度、Sn-H线距、H角以及Pg-Pg′差异有显著性（t=3.48～6.85,P〈0.05）。18～25男性与26～40岁男性比较,Sn-H线距和H角差异有显著性（t=6.22、8.61,P〈0.05）。18～25女性与26～40女性比较,Ss-Ls和上唇紧张度差异有显著性（t=2.83、5.12,P〈0.01）。青岛汉族人大多数测量项目在HOLDAWAY标准值之内。青岛汉族人与广西壮族人比较差异有显著性。结论青岛地区男性的整体侧貌立体感强于女性。软组织侧貌的增龄性变化具有性别差异。青岛汉族人侧貌突度介于白种人和广西壮族人之间。

刑讯逼供的背后——对《角色、情境与社会宽容》的法律社会学分析

通过对《角色、情境与社会宽容》这篇文章的分析,指出了文章所运用的多种法律社会学方法论以及基本方法。文章首先运用角色分析法作为剖析刑讯逼供现象的切入点,然后再分析具体的侦查讯问制度存在的缺陷和错位,使得具体讯问制度得以修正和完善,达到遏制刑讯逼供发生的目的。

应用垂线参考平面图法进行面部头影测量分析的初步探讨

目的 :建立一个强调前后向指标的软组织头影测量分析法。方法 :在垂直于自然水平面并经过软组织鼻下点的垂线参考平面建立后 ,13个垂直间距及 5个软组织突距分别从 6 6个中国年轻正常 (33名男性 ,33名女性 )的头颅侧位片中获得。结果 :在性别二态性比较上看 ,男性组比女性组多数指标有显著增大的绝对值 ,但在某些测量项目上 ,如G -VL ,NT -VL ,As-VL ,ULA -VL ,B -Bs ,Pog -Pos等间距男女无显著性差异。结论 :女性在软组织发育有关的项目上 ,并没有表现出比男性明显的弱势。另外 。

树木营养诊断法综述

按笔者在国外期间收集到的科技文献，有关树木营养诊断法概括起来有5种，即土壤分析法、缺素症状肉眼观察法、植物组织分析法、养分元素综合平衡诊断法、缺素的超显微解剖结构诊断法，这些方法可互相参照，进行综合诊断。

山东省正常少年儿童各骨龄分期的软组织侧貌Holdaway分析

目的:建立山东省正常少年儿童各骨龄分期软组织侧貌Holdaway分析法的标准值,并研究其面部软组织侧貌发育趋势,骨龄分期间及性别间差异。方法:选择172名(女性87名,男性85名)山东籍汉族正常少年儿童(8～16岁),拍摄X线头颅定位侧位片,进行图像处理和定点测量,用SPSS 18.0统计软件对得出的数据进行统计学处理。结果:建立山东汉族正常少年儿童各骨龄分期对应的骨龄值范围及男女各骨龄分期Holdaway分析法测量项目的标准值。结论:山东省正常少年儿童面部软组织生长发育趋势,女性早于男性1.66～2.05个骨龄,尤其表现在上唇与颏部;结构上,男性面下三分之一突度大于女性。

东北地区正常成人X线头影测量Holdaway法分析

目的分析东北地区正常成人面部软组织侧貌特征,探讨其性别及地域差异。方法于中国医科大学口腔医学院正畸科将100名东北地区正常汉族成人侧位X线头颅定位片描图、定点、测量,Holdaway法分析各项指标,并与北京人进行比较。结果得出东北地区正常成人Holdaway软组织分析法各项正常值。东北地区男女比较,部分测量值有显著性差异;与北京地区比较,东北地区整体面型较突。结论东北地区正常成人软组织侧貌具有一定的地域特点。

近代天津商会与国内其他商会网络机制的建构

在近代中国市场经济活动中 ,诞生于 2 0世纪初的天津商会 ,伴随着商会组织的团聚力和活动力的不断加强 ,与国内其他商会的交往日趋频繁 ,初步呈现出一个经济活动相互交错的网络状态。近代天津商会采用通讯、会谈、互访以及报刊等四种机制与国内商会建立了多层面的网络联系 ,造成了商会间很强的相互影响和相互作用 ,以及广泛的互动内容。本文采用社会组织互动分析法 ,试图对近代天津商会与与国内其他商会互动联系的构建。

实验性大鼠脑震荡后C -FOS蛋白表达(英文)

目的 探讨原癌基因C -Fos蛋白的表达及其与不同程度、不同时间的脑震荡性损伤的关系 ,寻找脑震荡后法医病理学的诊断依据。方法 84只实验大鼠随机分为震荡组和对照组 ,用免疫组化SABC法观察大鼠脑震荡后脑内C -Fos蛋白表达的变化规律。结果 对照组大鼠未见C -Fos蛋白的表达 ;脑震荡组损伤后 15min即可在神经细胞内观察到C -Fos蛋白的表达 ,随着损伤后时间的延长 ,表达含C -Fos蛋白的细胞数及范围逐渐扩大 ,损伤后 6h表达达高峰 ,直至损伤后 96h均有大量的C -Fos蛋白表达。结论 C -Fos原癌基因的检测可成为诊断脑震荡和推断脑震荡后经过时间的一项敏感指标。

基于改进PCA-SOM的电静压伺服作动器油滤堵塞故障诊断

针对电静压伺服作动器(EHA)的油滤堵塞故障,提出利用可调式球头油堵预置不同程度的油滤堵塞工况进行数据采集,并在传统自组织映射神经网络(SOM)的基础上,引入主成分分析(PCA)法,利用各元主成分贡献率对神经元竞争域值各维系数进行修订,提出了改进PCA-SOM神经网络对系统堵塞状态进行判识。研究结果表明,与传统SOM神经网络和PCA-SOM神经网络相比,改进PCA-SOM神经网络在提高聚类效果的同时,提高了模型的准确率和训练速度,在EHA的油滤堵塞故障诊断中有更好的适用性。

A personalized trustworthy service selection method

A personalized trustworthy service selection method is proposed to fully express the features of trust, emphasize the importance of user preference and improve the trustworthiness of service selection. The trustworthiness of web service is defined as customized multi-dimensional trust metrics and the user preference is embodied in the weight of each trust metric. A service selection method combining AHP （analytic hierarchy process） and PROMETHEE （preference ranking organization method for enrichment evaluations） is proposed. AHP is used to determine the weights of trust metrics according to users＇ preferences. Hierarchy and pairwise comparison matrices are constructed. The weights of trust metrics are derived from the highest eigenvalue and eigenvector of the matrix. to obtain the final rank of candidate services. The preference functions are defined according to the inherent characteristics of the trust metrics and net outranking flows are calculated. Experimental results show that the proposed method can effectively express users＇ personalized preferences for trust metrics, and the trustworthiness of service ranking and selection is efficiently improved.

Constitutive renal Rel/nuclear factor-κB expression in Lewis polycystic kidney disease rats

AIM： To determine the temporal expression and pattern of Rel/nuclear factor （NF）-κB proteins in renal tissue in polycystic kidney disease （PKD）. METHODS： The renal expression of Rel/NF-κB proteins was determined by immunohistochemistry, immunofuorescence and immunoblot analysis in Lewis polycystic kidney rats （LPK, a genetic ortholog of human nephronopthsis-9） from postnatal weeks 3 to 20. At each timepoint, renal disease progression and the mRNA expression of NF-κB-dependent genes （TNFa and CCL2） were determined. NF-κB was also histologically assessed in human PKD tissue.RESULTS： Progressive kidney enlargement in LPK rats was accompanied by increased renal cell proliferation and interstitial monocyte accumulation （peaking at weeks 3 and 10 respectively）, and progressive interstitial fibrosis （with a smooth muscle actin and Sirius Red deposition significantly increased compared to Lewis kidneys from weeks 3 to 6 onwards）. Rel/NF-κB proteins （phosphorylated-p105, p65, p50, c-Rel and RelB） were expressed in cystic epithelial cells （CECs） of LPK kidneys as early as postnatal week 3 and sustained until late-stage disease at week 20. From weeks 10 to 20, nuclear p65, p50, RelB and cytoplasmic IκBa protein levels, and TNFa and CCL2 expression, were upregulated in LPK compared to Lewis kidneys. NF-κB proteins were consistently expressed in CECs of human PKD. The DNA damage marker γ-H2AX was also identifed in the CECs of LPK and human polycystic kidneys. CONCLUSION： Several NF-κB proteins are consistently expressed in CECs in human and experimental PKD. These data suggest that the upregulation of both the canonical and non-canonical pathways of NF-κB signaling may be a constitutive and early pathological feature of cystic renal diseases.

Clinical Significance of CENP-H Expression in Uterine Cervical Cancer

Objective This work aims to investigate the expression pattern and clinicopathologic significance of centromere protein H(CENP-H) in uterine cervical cancer(UCC). Methods The level of CENP-H expression in the paraffin sections of 62 UCC cases was determined by the SP immunohistochemical method,with complete clinicopathologic data in all cases.Statistical analysis was conducted to evaluate the prognostic and diagnostic significance of CENP-H using SPSS13.0 software package. Results Immunohistochemical assay showed strong CENP-H expression in 61.29% (38/62) of the paraffin-embedded cervical cancer tissues.Statistical analysis revealed a strong correlation between the CENP-H expression and the clinical classification(P=0.038) of the cervical carcinoma.The expression increased with rise of the stages.The analysis of Cox proportional hazards regression model suggested that CENP-H expression(P=0.002) and tumor stage(P=0.001) were independent prognostic markers for the survival of UCC patients.The survival analysis showed that the survival rate was significantly lower in patients with high expression of CENP-H than in those with low expression of CENP-H(P=0.001). Conclusions CENP-H is likely to be a valuable marker for carcinogenesis and progression of UCC.It might be used as the important diagnostic and prognostic marker for cervical carcinoma patients,especially for those at early stage.

Identification of Three Common Loliginidae Squid Species in the South China Sea by Analyzing Hard Tissues with Geometric Outline Method

The hard tissues of squid can provide important information for species identification. In this study, we used statolith and beak to identify three squid species including Uroteuthis duvaucelii, Loliolus beka, and U. edulis in the South China Sea. Because of the highly overlapping habitat and similar body morphology of the three squid species, we explored four different ways to identify them, by using statolith, upper beak, lower beak and a combination of statolith and beak. An outline geometric morphometric method and stepwise discriminant analysis were used to evaluate the most suitable method for the identification. We found that the combination of statolith and beak had the highest cross validation rate that was 75.0%, 87.5% and 88.7% for U. duvaucelii, L. beka and U. edulis, respectively. Using two beaks had similar results and the lowest cross validation rate was 60.0%, 50.0%, and 73.7% for the upper beak, 46.9%, 58.5% and 75.3% for the lower beak of U. duvaucelii, L. beka and U. edulis, respectively. Analyzing with the statolith had moderate cross validation which was 72.2%, 80.0%, and 87.7% for U. duvaucelii, L. beka and U. edulis, respectively. From the results it is suggested when the entire body of a squid is available, a combination of statolith and beak should be used for the identification. When only one hard tissue is available, species identification can be subjected to large errors.

Intralesional and topical glucocorticoids for pretibial myxedema: A case report and review of literature

Pretibial myxedema(PTM), an uncommon manifestation of Graves' disease(GD), is a local autoimmune reaction in the cutaneous tissue. The treatment of PTM is a clinical challenge. We herein report on a patient with PTM who achieved complete remission by multipoint subcutaneous injections of a long-acting glucocorticoid and topical glucocorticoid ointment application for a self-controlled study. A 53-year-old male presented with a history of GD for 3.5 years and a history of PTM for 1.5 years. Physical examination revealed slight exophthalmos, a diffusely enlarged thyroid gland, and PTM of both lower extremities. One milliliter of triamcinolone acetonide(40 mg) was mixed well with 9 mL of 2% lidocaine in a 10 mL syringe. Multipoint intralesional injections into the skin lesions of the right lower extremity were conducted with 0.5 mL of the premixed solution. A halometasone ointment was used once daily for PTM of the left lower extremity until the PTM had remitted completely. The patient's PTM achieved complete remission in both legs afteran approximately 5-mo period of therpy that included triamcinolone injections once a week for 8 wk and then once a month for 2 mo for the right lower extremity and halometasone ointment application once daily for8 wk and then once 3-5 d for 2 mo for the left lower extremity. The total dosage of triamcinolone acetonide for the right leg was 200 mg. Our experience with this patient suggests that multipoint subcutaneous injections of a long-acting glucocorticoid and topical glucocorticoid ointment application are safe, effective,and convenient treatments. However, the topical application of a glucocorticoid ointment is a more convenient treatment for patients with PTM.

A weighted selection combining scheme for cooperative spectrum prediction in cognitive radio networks

A weighted selection combining （WSC） scheme is proposed to improve prediction accuracy for cooperative spectrum prediction in cognitive radio networks by exploiting spatial diversity. First, a genetic algorithm-based neural network （GANN） is designed to perform spectrum prediction in consideration of both the characteristics of the primary users （PU） and the effect of fading. Then, a fusion selection method based on the iterative self-organizing data analysis （ISODATA） algorithm is designed to select the best local predictors for combination. Additionally, a reliability-based weighted combination rule is proposed to make an accurate decision based on local prediction results considering the diversity of the predictors. Finally, a Gaussian approximation approach is employed to study the performance of the proposed WSC scheme, and the expressions of the global prediction precision and throughput enhancement are derived. Simulation results reveal that the proposed WSC scheme outperforms the other cooperative spectrum prediction schemes in terms of prediction accuracy, and can achieve significant throughput gain for cognitive radio networks.

Selecting Alternatives from Self-Organizing Product Maps for Purchase Decision Making Using AHP

We previously proposed a method for creating product maps with SOM （Self-Organizing Maps） to be used during purchase decision making. In that study, we first established two class boundaries, which divide the area between the minimum and maximum range of an input feature value into three equal parts. Then, we produced self-organizing product maps using classification data inputs. Finally, we applied our method to five product types and confirmed its effectiveness. In this paper, we propose a method for selecting alternatives from a product map, in which we have located a favorite several examples of selecting alternatives and making decisions using cluster, and/or from a favorite component map. We then show the AHP （Analytic Hierarchy Process）.