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    题名 作者 年代 出处 被引量
1Hypoxla inducible factor 1 (HIF-1) and cardioprotection显示文摘Demet TEKIN Ali D DURSUN Lei XI 2010Acta Pharmacologica Sinica2010,31,9:62
2Radical vs conservative surgery for hydatid liver cysts:Experience from single center显示文摘AIM:To compare the efficacy and safety of radical and conservative surgical interventions for liver hydatid disease.METHODS:The study comprised 59 patients in two groups who had undergone radical and conservative surgical procedures for liver hydatid disease in our department between 2004 and 2009. Preoperative diagnostic tools,medical treatments,demographic and clinical characteristics,postoperative follow-up,and recurrence were compared in both groups. RESULTS:This non-randomized retrospective studyincluded 59 patients who had undergone liver hydatid disease surgery. The radical technique was used in 18 patients (mean age:42.1 ± 13.5 years,seven male,11 female),and the conservative technique was used in 41 patients (mean age:43.5 ± 13.9 years,17 male,24 female). The follow-up period ranged from 3 to 58 mo. Although operative time was significantly shorter in the conservative group (P < 0.001),recurrence was significantly reduced in the radical group (P = 0.045). No statistically significant differences were found in terms of hospitalization duration,cyst count and size,location,postoperative complications,scolicidal solution usage,or follow-up duration between the two groups.CONCLUSION:The more effective method for pre-venting postoperative recurrence is radical surgery. En-doscopic retrograde cholangiopancreatography for bile leakage in the early postoperative period may decrease the requirement for repeat surgery.Sami Akbulut Ayhan Senol Arsenal Sezgin Bahri Cakabay Mehmet Dursun Omer Satici 2010World Journal of Gastroenterology2010,16,8:19
3Periodontopathogen profile of healthy and oral lichen planus patients with gingivitis or periodontitis显示文摘Oral lichen planus (OLP) is a chronic inflammatory disease that is frequently detected in oral tissues. The aim of our study was to identify the prevalence of the detection of periodontopathogenic microorganisms (Aggregatibacter actinomycetemcomitans, Porphyromonas gingivalis, Prevotella intermedia, Tannerella forsythia and Treponema denticola in OLP patients and to compare with this prevalence of periodontopathogenic microorganisms in healthy non-OLP patients. Our study included 27 (18 chronic periodontitis (OLPP) and 9 gingivitis (OLPG)) patients diagnosed with OLP along with 26 (13 chronic periodontitis (HP) and 13 gingivitis (HG)) healthy non-OLP patients. The multiplex polymerase chain reaction (PCR) with subsequent reverse hybridization method (micro-IDent) was used for identifying periodontopathogenic microorganisms present in subgingival plaque samples. The percentages of detection for A. actinomycetemcomitans, P. gingivalis, P. intermedia, T. forsythia and T. denticola in subgingival plaque samples taken from OLP patients (OLPG and OLPP) were 18.5%, 85.1%, 81.4%, 88.8% and 74%, respectively. Meanwhile, in the non-OLP patients (HG and HP), these values were 7.6%, 50%, 46.1%, 73% and 57.7%, respectively. Thus, comparing the non-OLP groups with the OLP groups, the periodontopathogens' percentages of detection in the OLP groups were higher than those in the non-OLP groups. According to our study results, OLP patients have higher levels of infection with A. actinomycetemcomitans, P. gingivalis, P. intermedia, T. forsythia and T. denticola than non-OLP patients. We argue that the high percentages in patients with OLP may help identify the importance of periodontopathogenic microorganisms in the progress of periodontal diseases of OLP.Abdullah Seckin Ertugrul Ugur Arslan Recep Dursun Sema Sezgin Hakki 2013International Journal of Oral Science2013,5,2:15
4High-speed colour-converting photodetector with all-inorganic CsPbBr_(3) perovskite nanocrystals for ultraviolet light communication显示文摘Optical wireless communication(OWC)using the ultra-broad spectrum of the visible-to-ultraviolet(UV)wavelength region remains a vital field of research for mitigating the saturated bandwidth of radio-frequency(RF)communication.However,the lack of an efficient UV photodetection methodology hinders the development of UV-based communication.The key technological impediment is related to the low UV-photon absorption in existing silicon photodetectors,which offer low-cost and mature platforms.To address this technology gap,we report a hybrid Sibased photodetection scheme by incorporating CsPbBr_(3) perovskite nanocrystals(NCs)with a high photoluminescence quantum yield(PLQY)and a fast photoluminescence(PL)decay time as a UV-to-visible colourconverting layer for high-speed solar-blind UV communication.The facile formation of drop-cast CsPbBr_(3) perovskite NCs leads to a high PLQY of up to ~73% and strong absorption in the UV region.With the addition of the NC layer,a nearly threefold improvement in the responsivity and an increase of ~25% in the external quantum efficiency(EQE)of the solar-blind region compared to a commercial silicon-based photodetector were observed.Moreover,timeresolved photoluminescence measurements demonstrated a decay time of 4.5 ns under a 372-nm UV excitation source,thus elucidating the potential of this layer as a fast colour-converting layer.A high data rate of up to 34 Mbps in solar-blind communication was achieved using the hybrid CsPbBr_(3)-silicon photodetection scheme in conjunction with a 278-nm UVC light-emitting diode(LED).These findings demonstrate the feasibility of an integrated high-speed photoreceiver design of a composition-tuneable perovskite-based phosphor and a low-cost silicon-based photodetector for UV communication.Chun Hong Kang Ibrahim Dursun Guangyu Liu Lutfan Sinatra Xiaobin Sun Meiwei Kong Jun Pan Partha Maity Ee-Ning Ooi Tien Khee Ng Omar F.Mohammed Osman M.Bakr Boon S.Ooi 2019Light(Science & Applications)2019,8,1:14
5Comparison of the effects of bevacizumab and ranibizumab injection on corneal angiogenesis in an alkali burn induced model显示文摘·AIM:To investigate the effects of bevacizumab and ranibizumab on corneal neovascularization in an alkali burn-induced model of corneal angiogenesis. ·METHODS:Fifteen Wistar-Albino rats were divided randomly into 3 groups after chemical cauterization of the cornea. The first group received a single dose of 0.1mL saline solution as a control group whereas second and third groups received a single dose of 2.5mg bevacizumab or 1mg ranibizumab by subconjunctival injection, respectively. After three weeks, the rat corneas were evaluated by biomicroscopy and corneal photographs were taken. The percentage of neovascularization area, length of the longest new vessel, corneal oedema and corneal opacity scores were assessed. ·RESULTS:The analysis of digital photographs showed that the percentage of neovascularization area to the total corneal area, the length of the longest new vessel, corneal oedema and opacity scores were significantly lower in both study groups compared to the control group (P <0.05). Additionally, the percentage of corneal neovascularization area, the length of the longest new vessel and corneal opacity score were less with bevacizumab than ranibizumab. ·CONCLUSION:Subconjunctival bevacizumab and ranibizumab treatments may be effective methods in reducing corneal neovascularization. Furthermore, bevacizumab is more effective than ranibizumab in the inhibition of corneal neovascularization.Ayhan Dursun Mustafa Kemal Arici Feyza Dursun Ayse Vural Ozec Mustafa Ilker Toker Haydar Erdogan Aysen Topalkara 2012International Journal of Ophthalmology(English edition)2012,5,4:10
6Is there an association between Helicobacter pylori in the inlet patch and globus sensation?显示文摘AIM:To determine the association between Helicobacter pylori(H.pylori)and globus sensation(GS)in the patients with cervical inlet patch. METHODS:Sixty-eight patients with esophageal inlet patches were identified from 6760 consecutive patients undergoing upper gastrointestinal endoscopy prospectively.In these 68 patients with cervical inlet patches, symptoms of globus sensation(lump in the throat), hoarseness,sore throat,frequent clearing of the throat,cough,dysphagia,odynophagia of at least 3 mo duration was questioned prior to endoscopy. RESULTS:Cervical heterotopic gastric mucosa(CHGM) was found in 68 of 6760 patients.The endoscopic prevalence of CHGM was determined to be 1%.H.pylori was identified in 16(23.5%)of 68 patients with inlet patch.53 patients were classified as CHGMⅡ.This group included 48 patients with globus sensation,4 patients with chronic cough and 1 patient with hoarseness.All the patients who were H.pylori(+)in cervical inlet patches had globus sensation.CONCLUSION:Often patients with CHGM have a long history of troublesome throat symptoms.We speculate that disturbances in globus sensation are like non-ulcer dyspepsia.Hakan Alagozlu Zahide Simsek Selahattin Unal Mehmet Cindoruk Sukru Dumlu Ayse Dursun 2010World Journal of Gastroenterology2010,16,1:8
7Microstructure, mechanical properties and formability of friction stir welded dissimilar materials of IF-steel and 6061 Al alloy显示文摘AA 6061 alloy and interstitial-free(IF)steel plates were joined by the friction stir welding(FSW)method,and the microstructure,mechanical properties,and biaxial stretch formability of the friction stir welded(FSWed)parts were investigated.The results indicate that the FSWed parts showed optimum tensile strength during FSW with the 0.4-mm offset position of the tool.The Fe4Al13 intermetallic compound formed in the defect-free intersection of AA 6061 and IF-steel plates during FSW.The hardness of the IF-steel part of the FSWed region increased almost 90%relative to its initial hardness of HV0.2 105.The tensile and yield strengths of FSWed regions were approximately 170 MPa and 145 MPa,respectively.According to the formability tests,the Erichsen Index(EI)of the IF-steel,AA 6061,and the FSWed samples were determined to be 2.9 mm,1.9 mm,and 2.1 mm,respectively.The EI of the FSWed sample was almost the same as that of the AA 6061 alloy.However,it decreased compared with that of the IF-steel.The force at EI(FEI)was approximately 1180 N for the FSWed condition.This value is approximately 70%higher than that of AA 6061 alloy.Semih Mahmut Aktarer Dursun Murat Sekban Tevfik Kucukomeroglu Gencaga Purcek 2019International Journal of Minerals,Metallurgy and Materials2019,26,6:7
8Adsorption Behavior and Inhibition Corrosion Effect of Sodium Carboxymethyl Cellulose on Mild Steel in Acidic Medium显示文摘The effect of sodium carboxymethyl cellulose (Na-CMC) on the corrosion behavior of mild steel in 1.0 mol·L-1 HCl solution has been investigated by using weight loss (WL) measurement, potentiodynamic polarization, linear polarization resistance (LPR), and electrochemical impedance spectroscopy (EIS) methods. These results showed that the inhibition efficiency of Na-CMC increased with increasing the inhibitor concentration. Potentiodynamic polarization studies revealed that the Na-CMC was a mixed type inhibitor in 1.0 mol·L-1 HCl. The adsorption of the inhibitor on mild steel surface has been found to obey the Langmuir isotherm. The effect of temperature on the corrosion behavior of mild steel in 1.0 mol·L-1 HCl with addition of 0.04% of Na-CMC has been studied in the temperature range of 298-328 K. The associated apparent activation energy (E*a ) of corrosion reaction has been determined. Scanning electron microscopy (SEM) has been applied to investigate the surface morphology of mild steel in the absence and presence of the inhibitor molecules.BAYOL E. GüRTEN A.A. DURSUN M. KAYAKIRILMAZ K. 2008物理化学学报2008,24,12:7
9Effects of the myeloperoxidase 463 gene polymorphisms on development of atrophy in H pylori infected or noninfected gastroduodenal disease显示文摘AIM: To investigate the relationship between myelo- peroxidase polymorphisms as a host-related factor and atrophy caused by H pylori. METHODS: Our study enrolled 77 patients. Biopsy materials obtained during gastrointestinal endoscopies were evaluated for the presence of H pylori. Polymerase chain reaction-restriction fragment length polymorphism assay was used to characterize myeloperoxidase genotypes. RESULTS: Forty four patients (57.1%) were Hp (+) and 33 (42.9%) were Hp (-). Sixty six (85.7%) had GG genotype, 10 (12.9%) had GA genotype and 1 (1.29%) had AA genotype. The change in atrophy in relation to neutrophil infiltration was significant in Hp (+) patients (P = 0.0001). The change in atrophy in relation to neutrophil infiltration in patients with GG genotype was significant (P = 0.002). However, the change in atrophy in relation to neutrophil infiltration was not significiant in patients with Hp (+) GG genotype (r = 0.066, P = 0.63). CONCLUSION: Myeloperoxidase genotype is critical for development of atrophy in relation to the severity of inflammation. However, it is interesting to note that, H pylori does not show any additive effect on development of atrophy.mer Yilmaz Hakan Dursun Nesrin Gürsan ibrahim Pirim Arif Yilmaz Nihat Okcu 2007World Journal of Gastroenterology2007,13,8:6
10Tracheobronchopathia osteochondroplastica: four cases显示文摘Dursun Tatar Gunes Senol Atike Demir Gulru Polat 2012Chinese Medical Journal2012,,16:4
11Debris flow susceptibility and propagation assessment in West Koyulhisar, Turkey显示文摘Turkey is highly prone to landslides because of the geological and geographic location.The study area,which is located in a tectonically active region,has been significantly affected by mass movements.Flow type landslides are frequently observed due to this location.This study aims at determining the source area and propagation of debris flows in the study area.We used the heuristic method to extract source areas of debris flow,and then used receiver operating characteristic(ROC)curve analysis to assess the performance of the method,and finally calculated the Area under curve(AUC)values being 83.64%and 80.39%for the success rate and prediction rate,respectively.We calculated potential propagation area and runout distance with Flow-R software.In conclusion,the obtained results(susceptibility map,propagation and runout distance)are very important for decisionmakers at the region located on an active fault zone,which is highly prone to natural disasters.The outputs of this study could be used in site selection studies,designing erosion prevention systems and protecting existing human-made structures.Ali POLAT Dursun ERİK 2020Journal of Mountain Science2020,17,11:4
12Clinical and therapeutic considerations of rectal lymphoma: A case report and literature review显示文摘Primary rectal lymphoma is a rare presentation of gastrointestinal lymphomas. Its clinical presentation is indistinguishable from that of rectal carcinoma. Although surgical resection is often technically feasible, optimal therapy for colorectal lymphoma has not yet been identified.We report a case of primary rectal lymphoma (nonHodgkin's large cell lymphoma of type B) with high-grade features that disappeared completely after chemoradiotherapy. This case underlines that primary treatment with systemic chemotherapy and involved-field radiotherapy can be successful for rectal lymphoma, with surgery reserved for complications and chemotherapy failures.Yilmaz Bilsel Emre Balik Sumer Yamaner Dursun Bugra 2005World Journal of Gastroenterology2005,11,3:4
13Application of grey relational analysis based on Taguchi method for optimizing machining parameters in hard turning of high chrome cast iron显示文摘High chrome white cast iron is particularly preferred in the production of machine parts requiring high wear resistance. Although the amount of chrome in these materials provides high wear and corrosion resistances, it makes their machinability difficult. This study presents an application of the grey relational analysis based on the Taguchi method in order to optimize chrome ratio, cutting speed, feed rate, and cutting depth for the resultant cutting force (Fr) and surface roughness (Ra) when hard turning high chrome cast iron with a cubic boron nitride (CBN) insert. The effect levels of machining parameters on Fr and Ra were examined by an analysis of variance (ANOVA). A grey relational grade (GRG) was calculated to simultaneously minimize Fr and Ra. The ANOVA results based on GRG indicated that the feed rate, followed by the cutting depth, was the main parameter and contributed to respo ses. Optimal levels of parameters were found when the chrome ratio, cutting speed, feed rate, and cutting depth were 12%, 100m/min, 0.05mm/r, and 0.1mm, respectively, based on the multiresponse optimization results obtained by considering the maximum signal to noise (SIN) ratio of GRG. Confirmation results were verified by calculating the confidence level within the interval width.Ali Kalyon Mustafa Giinay Dursun Ozyiirek 2018Advances in Manufacturing2018,6,4:3
14Balanced scorecard-based analysis of customer expectations for cosmetology services:a hybrid decision modeling approach显示文摘The goal of this study is to analyze and characterize customer expectations in the cosmetics sector.Within this framework,first,the extant literature is reviewed,and 12 most prominent performance measurement criteria are identified.Then,these criteria are organized along the four different balanced scorecard dimensions.By employing an Interval Type-2 Fuzzy DEMATEL methodology,the weighted importance of these dimensions and criteria are identified.Additionally,with the Interval Type-2 Fuzzy TOPSIS approach,13 leading cosmetic service providers in Ukraine are ranked based on their relative scores.The findings of the study indicate that consumer is the most significant dimension while learning and growth seem to have the least importance.Similarly,it is also concluded that all consumerfocused criteria(i.e.diversification of services,feedback on the product and services,and customer loyalty)have the highest priorities in the complete criterion set.Dursun Delen Oleksandr Dorokhov Liudmyla Dorokhova Hasan Dincer Serhat Yüksel 2020Journal of Management Analytics2020,7,4:3
15Dynamics of circulating microparticles in chronic kidney disease and transplantation:Is it really reliable marker?显示文摘The deterioration of endothelial structure plays a very important role in the development of vascular diseases. It is believed that endothelial dysfunction starts in the early stage of kidney disease and is a risk factor of an unfavorable cardiovascular prognosis. Because a direct assessment of biological states in endothelial cells is not applicable, the measurement of endothelial microparticles(EMPs) detached from endothelium during activation or apoptosis is thought to be a marker of early vascular disease and endothelial dysfunction in children with chronic kidney disease(CKD). Few studies have shown increased circulating EMPs and its relationship with cardiovascular risk factors in patients with CKD.MPs contain membrane proteins and cytosolic material derived from the cell from which they originate. EMPs having CD144, CD 146, CD31+/CD41-, CD51 and CD105 may be used to evaluate the vascular endothelial cell damage and determine asymptomatic patients who might be at higher risk of developing cardiovascular disease in CKD and renal transplant.Ismail Dursun Sibel Yel Emel Unsur 2015World Journal of Transplantation2015,5,4:3
16A review on the gun barrel vibrations and control for a main battle tank显示文摘Achieving high hitting accuracy for a main battle tank is challenging while the tank is on the move. This can be reached by proper design of a weapon control and gun system. In order to design an effective gun system while the tank is moving, better understanding of the dynamic behavior of the gun system is required. In this study, the dynamic behaviour of a gun system is discussed in this respect. Both experimental and numerical applications for the determination of the dynamic behaviour of a tank gun system are investigated. Methods such as the use of muzzle reference system(MRS) and vibration absorbers, and active vibration control technology for the control and the reduction of the muzzle tip deflections are also reviewed. For the existing gun systems without making substantial modifications,MRS could be useful in controlling the deflections of gun barrels with estimation/prediction algorithms.The vibration levels could be cut into half by the use of optimised vibration absorbers for an existing gun.A new gun system with a longer barrel can be as accurate as the one with a short barrel with the appropriate structural modifications.Tolga Dursun Firat Biiyiikcivelek Cagrihan Utlu 2017Defence Technology(防务技术)2017,13,5:2
17Total oxidative stress, paraoxonase and arylesterase levels at patients with pseudoexfoliation syndrome and pseudoexfoliative glaucoma显示文摘AIM: To investigate the oxidative stress status of the aqueous humor and serum of patients with pseudoexfoliation(PEX) syndrome and pseudoexfoliative glaucoma(PEG) and to measure paraoxonase(PON) and arylesterase(ARE) levels.·METHODS: A total of 78 patients were enrolled in the study, with 26 patients in each separate group. The patients were divided into three groups: the first group entailed PEX syndrome patients, while the second group consisted of patients with PEG and the third group involved patients with no additional systemic diseases,other than the diagnosis of cataract as control. Total oxidative stress(TOS), total antioxidant capacity(TAC),PON, and ARE levels in aqueous humor and serum were measured.·RESULTS: TAC, PON and arylesterase levels in aqueous humor and serum of the PEX syndrome and PEG patients were significantly decreased compared with control group(P <0.05). TOS values were higher in patients with PEX syndrome and PEG than controls(P <0.05). TAC, PON and ARE levels of aqueous humor did not differ significantly between the PEX syndrome and PEG groups·CONCLUSION: These findings are potentially of significance and add to the growing body of evidence for oxidative stress in PEX syndrome and PEG. Decreased antioxidant defense and increased oxidative stress system may play an important role in the pathogenesis of PEX syndrome and PEG.Feyza Dursun Ayse Vural Ozec Huseyin Aydin Aysen Topalkara Ayhan Dursun Mustafa Ilker Toker Haydar Erdogan Mustafa Kemal Arici 2015International Journal of Ophthalmology(English edition)2015,8,5:2
18Effect of transcatheter aortic valve replacement on P-wave duration, P-wave dispersion and left atrial size显示文摘BackgroundP 波浪分散(PWD ) , atrial 倔强的异质的一项措施,被定义为最大、最小的 P 波浪持续时间之间的差别。在有严重大动脉的狭窄的病人(作为) , P 波浪持续时间和 PWD 被显示被增加,显示 atrial 电的改变。然而, transcatheter 的效果 P 波浪形态学上的大动脉的阀门代替(TAVR ) 还没被建立。学习是与二估计 TAVR 的短、长期的效果的这的目的与左 atrial ( LA )联合在P波浪持续时间和 PWD 上 bioprosthetic 阀门打字 size.MethodsFifty --二( 36 女性)经历了在6月01日之间的 transfemoral TAVR 的在湾穴节奏的合格病人, 2012 并且有也的2014年7月31日 Medtronic CoreValve ( MCV )( n = 32 )或一个爱德华兹智慧 XT 阀门( n = 20 )被注册。标准 12 铅心电图和 echocardiographic 评估 pre-procedurally 被执行, post-TAVR 白天一和 6 月 post-TAVR。P 波浪持续时间和 PWD 被测量,有 echocardiographic 变量的关联分析是 performed.ResultsP 波浪持续时间, PWD 显著地在 post-TAVR 白天一上被减少(P <0.05 ) 。他们继续在六个月后续时期期间减少,但是不与短期的价值显著地不同(P >0.05 ) 。LA 直径的减少被发现重要在后续第六月(P <0.05 ) 。这些变化从植入的 bioprosthetic 阀门的类型是独立的(P >0.05 ) 。积极关联在 post-TAVR 白天一点在最小的 P 波浪持续时间和最大的大动脉的阀门坡度之间被检测(r = 0.297, P = 0.032 ).ConclusionsP 波浪持续时间和 PWD 显著地在显示早反向的 atrial 的 TAVR 以后早被减少电的改变。而且,中庭的结构的反向的改变被检测在后续 6 月。改变的 atrial 上的 bioprosthetic 阀门的二种类型的效果是类似的。Huseyin Dursun Zulkif Tanriverdi Tugce Colluoglu Dayimi Kaya 2015Journal of Geriatric Cardiology2015,12,6:2
19Recent developments in advanced aircraft aluminium alloys显示文摘Tolga Dursun Costas Soutis 2014Materials and Design2014,,:2
20Dry eye and delayed tear clearance: ''a call to arms''显示文摘Pflugfelder SC Solomon A Dursun D 2002Adv Exp Med Biol2002,506,:2
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