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Treating severe periodontitis with staged load applied implant restoration: A case report

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World Journal of Clinical Cases 2020年第10期8卷 2028-2037页

作者： shu-hua wang wang-Cheng Ni Ren-Fei wang School of Stomatology Zhejiang Chinese Medical UniversityHangzhou 310053Zhejiang ProvinceChina Hangzhou Dental Hospital Hangzhou 310002Zhejiang ProvinceChina

BACKGROUND Because immediate implant surgery is not recommended for patients who have been diagnosed with periodontitis,researchers have treated these patients with a variety of methods,including combining orthodontic and periodontal surgeries as well as ***,these treatments cost time and money for the *** it has been reported that temporary implants released a severe gag reflex in 1 case,only a few studies have documented using temporary implants to treat patients diagnosed with severe *** SUMMARY The patient was a 49-year-old female who was missing the majority of her teeth and had gingival atrophy and severe alveolar bone *** being diagnosed with severe periodontitis,the patient underwent staged load applied implant restoration *** first load-bearing stage was carried out immediately by inserting temporary Osstem mini *** teeth were extracted by using the guided bone regeneration technique,and lateral maxillary sinus lifting was conducted on both *** the second load-bearing stage,temporary implants were removed,and permanent implants were *** resin bridge was segmented during the third load-bearing *** the fourth load-bearing stage,the permanent prosthesis was positioned in the patient’s *** By conducting the load-bearing treatment in stages,the patient’s mouth contained restorations throughout the procedure,thus guaranteeing basic function and appearance.

关键词： Severe periodontitis Complete implant denture Lack of bone mass Temporary implants Case report Staging load

Quasiparticle scattering interference in electron-doped cuprate superconductors

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Frontiers of physics 2015年第6期10卷 109-116页

作者： shu-hua wang shuang-Sheng Yang huai-Song Zhao Feng Yuan College of Physics Qingdao University Qingdao 266071 China

By considering the nonmonotonic d-wave gap effect, the energy and momentum dependence of quasiparticle scattering interference is studied in the presence of a single impurity. It is shown that the pattern of the quasiparticle scattering peaks in the full Brillouin zone of electron-doped cuprate superconductors is very different from that in the hole-doped case described by the Octet model. This difference is the result of the nonmonotonic d-wave superconducting gap in the electron-doped case. As the energy increases, the position of the local peaks in the Brillouin zone moves rapidly. In particular, the characteristic peaks of the electron-doped cuprate superconductors appear between the antinodal and nodal directions, unlike in the hole-doped case.

关键词： cuprate superconductors

Predictors of angle widening after laser iridotomy in Chinese patients with primary angle-closure suspect using ultrasound biomicroscopy

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International Journal of Ophthalmology(English edition) 2022年第2期15卷 233-241页

作者： Xue-Ting Pei shu-hua wang Xia Sun Hong Chen Bing-Song wang shu-Ning Li Tao wang Beijing Tongren Eye Center Beijing Tongren HospitalCapital Medical UniversityBeijing Ophthalmology and Visual Science Key LaboratoryBeijing 100730China

AIM:To assess the predictive value of baseline parameters of ultrasound biomicroscopy(UBM) for angle widening after prophylactic laser peripheral iridotomy(LPI) in patients with primary angle-closure suspect(PACS).METHODS:Angle-opening distance(AOD),trabecular iris angle(TIA),iris thickness,trabecular-ciliary process angle,and trabecular-ciliary process distance were measured using UBM performed before and two weeks after *** convexity(IC),iris insertion,angulation,and ciliary body(CB) size and position were ***-and multivariate regression analyses were used to determine factors predicting the change in AOD(ΔAOD500,calculated as an angle width change before and after LPI) in all quadrants and in subgroup quadrants based on ***:In 94 eyes of 94 patients with PACS,LPI led to angle widening with increases in AOD500 and TIA(P<0.01).Multivariable regression analysis showed that IC(P<0.001),CB position(P=0.007) and iris insertion(P=0.049) were significantly predictive for Δ*** quadrants were categorized into extreme IC(27.8%),moderate IC(62.3%),and absent IC(9.9%) *** AOD500 increased by 220% and no other predictive factor was found in the extreme IC *** AOD500 increased by 55%,and baseline iris angulation was predictive for smaller changes in ΔAOD500 in the moderate IC ***:In PACS patients,quadrants with greater iris bowing predict substantial angle widening after *** with a flatter iris,anteriorly positioned CB,and basal iris insertion are associated with less angle widening after *** with iris angulation as well as a flatter iris configuration predict a smaller angle change after LPI.

关键词： laser peripheral iridotomy angle opening distance ultrasound biomicroscopy iris convexity iris angulation

Nef Mutations in Long-term Non-progressors from Former Plasma Donors Infected with HIV-1 Subtype B in China

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Biomedical and Environmental Sciences 2008年第6期21卷 485-491页

作者： shu-hua wang HUI XING XIANG HE FENG-XIA ZHU ZHE-FENG MENG Yu-hua RUAN YI-MING SHAO State Key Laboratory for Infection Diseases Prevention and Control National Center for AIDS/STD Control and Prevention Chinese Center for Disease Control and Prevention Beijing 100050 China The General Hospital of Civil Aviation Administration of China Beijing 100025 China

Objective To study the specific amino acid variation in Nef that may be related to disease progression after infection with HIV-1 subtype B, a predominant strain circulating in China, and to determine whether changes in Nef secondary structure may influence different stages of AIDS development based on the concept that the Nef gene of HIV infection dramatically alter the severity of viral infection and virus replication and disease progression, and that long-term non-progressors （LTNP） of HIV infection are commonly associated with either a deletion of the Nef gene or the defective Nef alleles. Methods The study subjects were divided into LTNPI（n=14）, LTNP2 （n=16） and slow progressor （SP, n=19） groups for mutational analysis of the Nef sequence. The data were obtained by using Bioedit, MEGA, Anthewin and SAS software. Results Residues in Nef TA48/49 and K151 occurred more frequently in the LTNP group while AA48/49 was more frequently observed in the SP group. Of the differences observed in the secondary structure comparison using Nef consensus sequences of these three groups, one was roughly corresponding to the Nef48/49 mutation site. Conclusion TA48/49, Kiss, and AA48/49 in the Nef gene might be associated with the different stages of HIV infection, and there may be a link between the Nef secondary structure and the progression of HIV- 1 infection.

关键词： HIV-1 Nef Long-term nonprogressors Sequence mutations Secondary structure prediction

A machine learning-based study of multifactor susceptibility and risk control of induced seismicity in unconventional reservoirs

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Petroleum Science 2023年第4期20卷 2232-2243页

作者： Gang Hui Zhang-Xin Chen Hai wang Zhao-Jie Song shu-hua wang Hong-Liang Zhang Dong-Mei Zhang Fei Gu National Key Laboratory of Petroleum Resources and Engineering China University of PetroleumBeijing102249PR China Department of Chemical and Petroleum Engineering University of CalgaryCalgaryABT2N1N4Canada Eastern Institute for Advanced Study Ningbo315200ZhejiangPR China Computer Modeling Group Ltd.Calgary ABT2L2M1Canada CNOOC Research Institute Beijing100028PR China China University of Geoscience(Wuhan) Wuhan430074HubeiPR China Research Institute of Petroleum Exploration and Development Beijing10083PR China

A comprehensive dataset from 594 fracturing wells throughout the Duvernay Formation near Fox Creek, Alberta, is collected to quantify the influences of geological, geomechanical, and operational features on the distribution and magnitude of hydraulic fracturing-induced seismicity. An integrated machine learning-based investigation is conducted to systematically evaluate multiple factors that contribute to induced seismicity. Feature importance indicates that a distance to fault, a distance to basement, minimum principal stress, cumulative fluid injection, initial formation pressure, and the number of fracturing stages are among significant model predictors. Our seismicity prediction map matches the observed spatial seismicity, and the prediction model successfully guides the fracturing job size of a new well to reduce seismicity risks. This study can apply to mitigating potential seismicity risks in other seismicity-frequent regions.

关键词： Induced seismicity Hydraulic fracturing Seismicity susceptibility Risk control Machine learning

CD4+Foxp3+CD25+/-Tregs characterize liver tissue specimens of patients suffering from drug-induced autoimmune hepatitis:A clinical-pathological study

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Hepatobiliary & Pancreatic Diseases International 2018年第2期17卷 133-139页

作者： Li-Mei Qu shu-hua wang Kun Yang David R.Brigstock Li Su Run-Ping Gao Department of Hepatic-Biliary-Pancreatic Medicine First Hospital of Jilin UniversityChangchun 130021China Department of Surgical Gastroenterology First Hospital of Jilin UniversityChangchun 130021China The Research Institute at Nationwide Children’s Hospital ColumbusOH 43205USA Division of Pediatric Surgery Department of SurgeryThe Ohio State UniversityColumbusOH 43205USA

Background: The diagnosis of drug-induced autoimmune hepatitis(DIAIH) and its differentiation from idiopathic autoimmune hepatitis(AIH) is challenging. This study aimed to differentiate DIAIH from AIH by comparing the biochemical changes, histological features, and frequencies of CD4~+Foxp3~+CD25+/-regulatory T cells(Tregs) in liver tissues or peripheral blood ***: A total of 15 DIAIH patients and 24 AIH patients who underwent liver biopsies at initial presentation were enrolled in this study. The liver histological changes were assessed by HE staining. The phenotypic recognition and distribution of CD4~+Foxp3~+CD25+/-Tregs in liver tissues were evaluated by single/double immunostains in serial sections. The CD4~+Foxp3~+CD25+/-Tregs in peripheral blood were analyzed by flow ***: The median values of ALT and AST were 404.50 U/L and 454.10 U/L in DIAIH patients and309.50 U/L and 315.00 U/L in AIH patients, respectively. More importantly, for the first time we found that patients with DIAIH had higher levels of serum ALT and AST, more severe degree of lobular inflammation,higher frequencies of zone 3 necrosis and higher number of lobular CD4~+Foxp3~+CD25~-Tregs compared with AIH(P < 0.05). Furthermore, there were positive correlations in DIAIH between the degree of lobular inflammation and either the AST/ALT level or the number of lobular CD4~+Foxp3~+CD25~-Tregs(P < 0.05).However, the frequency of peripheral blood CD4~+Foxp3~+CD25+/-Tregs were not significantly different between DIAIH and ***: The differences of ALT, AST and the number of lobular CD4~+Foxp3~+CD25~-Tregs between patients with DIAIH and those with AIH are clinically helpful in differentiating these two diseases in their early stage.

关键词： Drug-induced liver injury Autoimmune hepatitis Drug-induced autoimmune hepatitis Liver biopsy Regulatory T cells

Experimental Study on the Liquid Slug of Cryogenic Slug Flow in Inclined Tubes

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Journal of Shanghai Jiaotong university(Science) 2010年第3期15卷 372-376页

作者：王淑华张华王经 School of Mechanical Engineering Shanghai Jiaotong University

An experimental study was carried out to understand the phenomena of the boiling flow of liquid nitrogen in inclined tubes with closed bottom by using a high speed motion *** experimental tubes are 0.018 and 0.014 m inner diameter(ID) and 1.0 m in *** range of the inclination angle is 45°-90° from the *** experimental observation on the liquid slug was carried out along the *** method was employed to analyze the experimental *** experiment analyzed the influences of the inclination angle and the tube diameter on the liquid slug length and *** results show the liquid slug propagation velocity increases with the decrease of inclination angle θ.For all cases,the maximum values of the mean liquid slug lengths were obtained at θ = 60°.The mean liquid slug lengths were greater for large tube at higher tube *** conclusions provide a basis for further study liquid slug of cryogenic two-phase undeveloped slug flow.

关键词： liquid slug length distribution velocity statistical method inclined tubes

Studies on Colloidal Properties of Mixed Metal Hydroxide－Clay Aqueous Suspension

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Chemical Research in Chinese Universities 1995年第4期11卷 316-322页

作者： NOU wan-guo ZHANG Chun-guang SUN De-jun HAN shu-hua and wang Guo-ting(Institute of Colloid and Interface Chemistry,Shandong University,Jinan,250100) SHANDONG UNIV INST COLLOID & INTERFACE SCIJINAN 250100PEOPLES R CHINA

he electrical property,stability and rheological property of mixed metal hydroxide(MMH)-clay aqueous suspensions were studied via determining elec- trophoretic mobilities,heterocoagulation and rheological parameters. The suspen- sions of MMH-Na-montmorillonite and MMH-Kaolinite may be transformed from negatively charged systems into positively charged systems through changing the ratio of MMH to clav. The increase of MMH content makes the stability of dilute MMH-clay suspensions decreased in negatively chrged systems and increased in positively chrged systems. The complete coagulations at near neutral systems oc- curs. In the concentrated MMH-clay suspension,the steric network structures may be formed between MMH and clay particles,which cause the apparent viscosity(AV)and Bingham yield point(YP) of the suspentqion to increase. There is a suit- able ratio of MMH to clay at which the AV and YP of the suspension attain a maximum value,which in agreement with “bridging theory”of polymer flocculation.

关键词： Mixed metal hydroxide Clay Colloidal property Suspension

Drive Characteristic Analysis and Design of an Elliptic Gear Mechanism

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International Journal of Plant Engineering and Management 2009年第4期14卷 228-233页

作者： GU shu-hua wang Xiao-qing College of Light Industry Hebei Polytechnic University Tangshan 06300 P.R. China

One notable transmission characteristic of an elliptic gear mechanism is that the driven gear will rotate at varying speed according to a given rule when the drive gear rotates at a uniform speed, which can just meet some special requirements that a common mechanism cannot meet. It is important for the design of special mechanisms. In this paper, the transmission characteristic of an elliptic gear mechanism was analyzed and the design method was researched. The application of the elliptic gear used in the grooved gearing mechanism was designed and the validity was proved.

关键词： elliptic gear mechanism transmission design