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| 1 | Gracey刮治器与Vector系统去除牙周病患牙根面内毒素的疗效评估显示文摘目的评价牙周病患牙在采用不同治疗方法后根面内毒素存在情况及其数量变化。方法选择90个有严重骨吸收的单根牙周病患牙,拔除后随机分成3组。第1组为对照组,不作任何治疗;第2组用Gracey刮治器行刮治及根面平整术;第3组用新型超声装置Vector系统(Duerr Dental)行刮治及根面平整术。术后磨取各组患牙牙根表面物质,溶于水后用鲎试剂法定量检测内毒素浓度。结果对照组内毒素浓度为0.825EU/ml,Gracey组为0.240EU/ml,Vector系统组为0.184EU/ml。结论刮治和根面平整术可有效减少牙周病患牙根面内毒素含量。 | Elena Firkova-Stoyanova 付云 宁杨 Stoyan Vladimirov | 2008 | 中华口腔医学研究杂志(电子版)2008，2，2： | 9 |
| 2 | RANDOM SYSTEMS OF HARD PARTICLES:MODELS AND STATISTICS显示文摘This paper surveys models and statistical properties of random systems of hard particles. Such systems appear frequently in materials science, biology and elsewhere. In mathematical-statistical investigations, simulations of such structures play an important role. In these simulations various methods and models are applied, namely the RSA model, sedimentation and collective rearrangement algorithms, molecular dynamics, and Monte Carlo methods such as the Metropolis-Hastings algorithm. The statistical description of real and simulated particle systems uses ideas of the mathematical theories of random sets and point processes. This leads to characteristics such as volume fraction or porosity, covariance, contact distribution functions, specific connectivity number from the random set approach and intensity, pair correlation function and mark correlation functions from the point process approach. Some of them can be determined stereologically using planar sections, while others can only be obtained using three-dimensional data and 3D image analysis. They are valuable tools for fitting models to empirical data and, consequently, for understanding various materials, biological structures, porous media and other practically important spatial structures. | Dietrich Stoyan (Institut für Stochastik, TU Bergakademie Freiberg, 09596 Freiberg, Germany) | 2002 | 中国体视学与图像分析2002，7，1： | 2 |
| 3 | Novel MLH1 frameshift mutation in an extended hereditary nonpolyposis colorectal cancer family显示文摘AIM: To present novel frameshift mutation c.31delC [p.L11X] in the MLH1 gene identified in an extended Bulgarian hereditary non-polyposis colorectal cancer (HNPCC) family and to analyze the molecular and clinical findings within the pedigree concerning the proposal of adequate individual prophylactic strategy for all mutation carriers. METHODS: The pedigree of the family consists of 42 members in four generations. Search for mutations in the MLH1 and hMSH2 genes was performed in the pro-band. After PCR amplification of all exons including flanking intronic regions, amplicons were directly sequenced. RESULTS: The mutation was found in nine from the thirteen pedigree members who signed informed consent to participate in the study. In three adenocarcinomas, microsatellite instability and lack of the MLH1 protein expression were detected. The only one tubulovillous adenoma analyzed was microsatellite stable and the MLH1 protein showed an intact staining. CONCLUSION: The newly described mutation c.31delC is HNPCC causative. Besides the typical clinical features of the syndrome, we found a specific pathologic manifestation such as moderate to high differentiated adenocarcinomas of the colon. One of the mutation carriers developed a benign giant cell soft tissue tumor. The primary tumor localizations were frequently extracolonic and detailed yearly gastrointestinal and gynecological examinations have been proposed to the mutation carriers. We emphasize the importance of including the HNPCC genetic counseling and testing as well in the following surveillance of all patients at risk in the services covered by the health insurance in Bulgaria. | Tanya Kirilova Kadiyska Radka Petrova Kaneva Dimitar Georgiev Nedin Alexandrina Borisova Alexandrova Antonina Todorova Gegova Stoyan Ganchev Lalchev Tatyana Christova Vanio Ivanov Mitev Juergen Horst Nadja Bogdanova Ivo Marinov Kremensky | 2006 | World Journal of Gastroenterology2006，12，48： | 2 |
| 4 | Mathematical model and solution method of optimization problem of placement of rectangles and circles taking into account special constraints显示文摘 | STOYAN Y G YASKOV G N | 1998 | International Transactions on Operational Research1998，，5： | 1 |
| 5 | Statistical analysis of spatial point processes:A soft-core model and cross-correlations of marks 显示文摘 | Stoyan D | 1987 | Biometrical Journal1987，29，8： | 1 |
| 6 | China's Emerging Private Enterprises:Prospects for the New Century显示文摘 | Neil Gregory Tenev Stoyan andWagle Dileep M | 2000 | Washington:International Finance Corporation2000，，： | 1 |
| 7 | Mathematical model and solution method of optimization problem of placement of rectangles and circles taking into account special constraints显示文摘 | Stoyan YG Yaskov GN | 1998 | International Transactions in Operational Research1998，5，1： | 1 |
| 8 | SEM and EDS observations of carrollite bioleaching with a mixed culture of acidophilic bacteria显示文摘 | GUY NKULU STOYAN GAYDARDZHIEV EDOUARD MWEMA | 2015 | Minerals Engineering2015，，： | 1 |
| 9 | The soluble interleukin-6 receptor is gengrated by shedding 显示文摘 | Mullberg J Schooltink H Stoyan T | 1993 | Eur J Immunol1993，23，2： | 1 |
| 10 | Tacomanarrows 50 yesrs later-wind engineering investigations for parallel bridges显示文摘 | Rowan A I Stoyan S Xie J M | 2005 | Bridges Structures2005，1，1： | 1 |
| 11 | Mathematical model and solution method of optimization problem of placement of rectangles and circles taking into account special constraints 显示文摘 | Stoyan YG Yaskov GN | 1998 | International Transactions on Operational Research1998，，5： | 1 |
| 12 | Spatial heterogeneity of soil respiration and related properties at the plant scale显示文摘 | Stoyan H De--Polli H Bshm S | 2000 | Plant and Soil2000，222，12： | 1 |
| 13 | Recent applicationsof point process methods in forestry statistics显示文摘 | STOYAN D PENTTINEN A | 2000 | Statistical Science2000，15，1： | 1 |
| 14 | Bioleaching of bauxites by wild andlaboratory-bred microbial显示文摘 | Stoyan Groudev Fratio Genchev | 1979 | Department of Mineral Processing Higher Institute of Mining and Geology Sofia 1156 Bulgaria1979，5，： | 1 |
| 15 | Statistical analysis for a class of line segment processes显示文摘 | Penttinen A Stoyan D | 1989 | Scandinavian Journal of Statistics1989，16，2： | 1 |
| 16 | Possibilities for Co(III) dissolution from an oxidized ore through simultaneous bioleaching of pyrite显示文摘 | Léon Zeka Fanny Lambert Jean Frenay Stoyan Gaydardzhiev Augustin IlungaNdala | 2014 | Minerals Engineering2014，，： | 1 |
| 17 | Microorganisms improve kaolin properties显示文摘 | Groudeva Veneta I Groudev Stoyan N (Bulg) | 1995 | Am eeram Soc Bull1995，74，6： | 1 |
| 18 | Competitive intelligence information and innovation in small Canadian firms显示文摘 | Stoyan Tanev Tony Bailetti | 2008 | European Journal of Marketing2008，，7： | 1 |
| 19 | Optimization of molecular clusters configurations using a Genetic Algorithm显示文摘 | STOYAN PISOV ANA PROYKOVA | 2001 | Meeting in Physics at University Sofia2001，3，： | 1 |
| 20 | Mathematical model and solution method of optimization problem of placement of rectangles and circles taking into account special constraints显示文摘 | Stoyan YG Yaskov GN | 1998 | International Transactions in Operational Research1998，5，1： | 1 |
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