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World Journal of Clinical Cases 2024年第12期12卷 2004-2008页

作者： recepÖztürk Tumororthopädie und Sarkomchirurgie Universitätsklinikum EssenEssen 45143Germany

It is important for surgeons performing sarcoma surgery to know that bone resection and tumor prosthesis applications in soft tissue sarcomas(STS)have unique features in terms of indication,surgical approach and follow-up,in terms of the management of these *** STS are associated with bone and major neurovascular ***-associated STS are generally relatively large and relatively ***,the tendency for metastasis is *** some cases,the decision about which structures to resect is *** cases are often accompanied by poor oncological and surgical *** of cases should be done by a multidisciplinary team in advanced centers specialized in this *** surgical team must have sufficient knowledge and experience in the field of limb-sparing *** evaluation and especially good planning of bone and soft tissue reconstruction are vital.

关键词： Soft tissue sarcoma Bone invasion Bone resection Endoprosthesis replacement Prosthesis Limb salvage Indication Approach

Expandable endoprostheses in skeletally immature patients:Where we are

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World Journal of Orthopedics 2024年第4期15卷 312-317页

作者： recepÖztürk Tumororthopädie und Sarkomchirurgie Universitätsklinikum EssenEssen 45143Germany

Approximately 45 percent of malignant bone tumors are seen under the age of 16 and one of the important results of growth plate sacrification in patients with immature skeletons is limb *** the early 1990s,the treatment options for these patients were rotationplasty or *** approaches that combine imaging,chemotherapy,and surgical techniques have enabled the development of limb-preserving methods with satisfactory *** order to overcome inequality problems,expandable prostheses have been developed in the *** endoprosthesis replacements have been improved over the years and are now an established and safe *** prostheses appear to be advantageous compared to minimally invasive expandable prostheses that require multiple surgical procedures,but the complication rate remains ***,although expandable prostheses are not the definitive answer to the treatment of bone sarcomas in skeletally immature children,they are still a suitable interim choice until full adulthood is *** to reported high complication rates,the procedures require significant experience and are recommended for use only in specialized cancer centers.

关键词： Bone sarcoma Expandable endoprostheses Limb salvage surgery Noninvasive Minimal-invasive Invasive Extendible endoprostheses

Cyclops syndrome following anterior cruciate ligament reconstruction: Can relapse occur after surgery?

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World Journal of Orthopedics 2024年第3期15卷 201-203页

作者： recep öztürk Department of Orthopedic Oncology University Hospital EssenEssen 45143Germany

Symptomatic cyclops lesions are complications that can be seen at rates of up to approximately 10%after anterior cruciate ligament ***,recurrent cyclops lesions have rarely been *** are case rare series in the literature regarding the treatment of recurrent cyclops *** large studies are needed to investigate factors contributing to the development of cyclops lesions and syndrome and treatment options.

关键词： Cyclops lesion Cyclops syndrome Anterior cruciate ligament Knee arthroscopy Relaps

Condenser Optimization in Steam Power Plant

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Journal of Thermal Science 2003年第2期12卷 176-178,192页

作者： SükrüBekdemir recepztürk ZehraYumurtac Yildiz Technical University Mechanical Engineering DepartmentIstanbulTurkeyYildiz Technical UniversityMechanical Engineering DepartmentIstanbulTurkeyYildiz Technical UniversityMechanical Engineering DepartmentIstanbulTurkey

In this paper the effects of the condenser design parameters(such as turbine inlet *** power and condenser pressure) on heat transfer area,cooling water *** cost and specific energy generation cost are studied for sur... 详细信息

关键词： condensers steam power plants energy cost.

Knowledge and attitudes of orthopedic surgeons regarding prosthesis joint infection

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World Journal of Orthopedics 2023年第4期14卷 240-247页

作者： Mahmut Nedim Aytekin Imran Hasanoglu recep öztürk Nihat Tosun Department of Orthopedics and Traumatology Ankara Yıldırım Beyazıt UniversityFaculty of MedicineAnkara 06500Turkey Department of Infectious Diseases and Clinical Microbiology Ankara Yıldırım Beyazıt UniversityFaculty of MedicineAnkara City HospitalAnkara 06500Turkey Department of Orthopedics and Traumatology Dr.Abdurrahman Yurtaslan Ankara Oncology Training and Research HospitalAnkara 06200Turkey

BACKGROUND Periprosthetic joint infection(PJI)is a critical complication after joint arthroplasty and is accompanied by increasing rates of morbidity and *** studies have aimed at preventing *** To research the knowledge level and attitudes of orthopedic surgeons,who play a key role in both preventing and managing *** We conducted a web-based survey to evaluate orthopedic surgeons'knowledge level and attitudes regarding *** Likert scale survey utilized consisted of 30 questions which were prepared based on the"Proceedings of the International Consensus on Periprosthetic Joint Infection".RESULTS A total of 264 surgeons participated in the *** average age was 44.8,and 173 participants(65.5%)had more than 10 years of *** statistically significant relationship was found between the PJI knowledge of the surgeons and their years of ***,participants who worked in training and research hospitals demonstrated higher levels of knowledge than the ones in the state *** was also noticed that surgeons'knowledge concerning the duration of antibiotic therapy and urinary infections was not consistent with their *** Even though orthopedic surgeons have adequate knowledge about preventing and managing PJI,their attitudes might contradict their *** studies are required to examine the causes and solutions of the contradictions between orthopedic surgeons'knowledge and attitudes.

关键词： Antibiotic prophylaxis Periprosthetic joint infection Prevention Total joint replacement Turkey

Deep neck infections mortal complications:Intrathoracic complications and necrotising fasciitis

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World Journal of Clinical Cases 2024年第30期12卷 6383-6390页

作者： Kemal Koray Bal Can Aslan Harun Gür Seda Turk Bal recep Okan Ustun Murat Unal Department of Otorhinolaryngology Mersin UniversityMersin 33160Türkiye Department of Emergency Medicine Tarsus State HospitalMersin 33460Türkiye Department of Aestetic Division of Plastic and Reconstructive SurgeryUniversity of Health Sciences Mersin City HospitalMersin 33230Türkiye

BACKGROUND We planned this study considering that complications of deep neck infections can be seriously life *** To raise awareness that introthoracic complications and necrotizing fasciitis are causes of serious mortality and *** This study was carried out with the participation of 188 patients who were treated at Mersin University Department of Otorhinolaryngology and Head and Neck Surgery at January 1,*** the patient files were retrospectively examined,16 of 188 patients(8.5%)were included in the study because they were observed to have necrotizing fasciitis and/or intrathoracic *** There were a total of 16 patients in this study,9 males(56.25%)and 7 females(43.75%).All patients were adults(>18 years)and the mean age was 50.37 years±15.37 *** patients had a mean age of 40.42 years±13.38 years,whereas for male patients was 58.11 years±12.44 *** Patients with necrotizing fasciitis and/or intrathoracic complications require more complicated and serious surgeries,intensive care unit monitoring,and mechanical ventilator *** rates of morbidity and mortality should be expected in Bal KK et *** neck infections mortal complications WJCC https://*** 6384 October 26,2024 Volume 12 Issue 30 these patients who are hospitalized for longer periods of time.

关键词： Deep neck infection Necrotising fasciitis Mediastinitis Complications Mortality

Toppling and sliding in volcanic bimrocks around Bayrakli(Izmir, Turkey)

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Journal of Mountain Science 2020年第2期17卷 492-500页

作者： recep KILI? Koray ULAMI? Ankara University Department of Geological Engineering

Discontinuities have significant role on the behavior of rock masses with respect to several types of instabilities. Excavability, deformability, bearing capacity and slope stability of the rock masses should be investigated considering the discontinuity characteristics with particular emphasis on the geomechanical properties. Kinematic analyses mostly provide an insight to the instabilities, however the dimensions of the blocks bounded by discontinuities, their geomechanical properties and the geometry of the slope should also to be taken into account. The study area is in the abandoned stone quarry in Bayrakl? district of ?zmir residential area. Due to the excavations and discontinuity orientations, instabilities have occured. Miocene aged andesites and altered agglomerates of Yamanlar Volcanics form the bimrock mass. The study area is located within a sheared zone, bounded by strike slip fault zone. Intact andesite blocks were encountered in altered agglomerate matrix, forming a volcanic bimrock. Wedge and planar sliding and block toppling were observed within the area. Detailed discontinuity surveying was conducted, combined with core drillings. Several typical locations were detected where prismatic blocks of andesites are bound to experience block toppling. Such locations are nearby the top of the steep slopes. Agglomerates are subjected to mainly sliding and the blocks have been formed not by gravity but by peculiarities of thevolcanic sedimentation and, probably by subsequent tectonics. In order to determine the mechanism of the sliding and toppling in more details, the relation of the blocks and the slope geometry were investigated. Bimrock type volcanic rock masses sometimes do not tend to accommodate the general rules of toppling and sliding due to their anisotropic settings.

关键词： Volcanic bimrock Toppling Sliding Discontinuity Bayrakli

Toxicity, inheritance and biochemistry of clofentezine resistance in Tetranychus urticae

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Insect Science 2011年第5期18卷 503-511页

作者： recep Ay Fatma Ebru Kara Suleyman Demirel University Faculty of Agriculture Department of Plant Protection Cunur Isparta Turkey

This study evaluates the toxicological and biochemical response of two-spotted spider mites to clofentezine selection pressure. The mortality rate of Tetranychus urticae in adult females depends on increased clofentezine concentration and clofentezine was found to be effective against females. The resistance rate of the CUM strain selected 12 times once per generation with clofentezine was increased from 1.28- to 105.27-fold. The interaction of some synergists with clofentezine was analyzed in the clofentezine-resistant CLOF 12 strain. Synergists had no effect on clofentezine toxicity. The clofentezine-resistant CLOF 12 strain showed resistance against chlorpyrifos, abamectin, propargite, fenpyroximate and amitraz. The modes of inheritance of resistance to clofentezine were found to be incompletely dominant and not sex-linked. Esterase enzyme activity was detected both by gel electrophoresis and microplate reader methods, while glutathione S-transferase （GST） and monooxygenase （P450） activity were detected only by the microplate reader method. During the selection period the esterase, the GST and the P450 enzymes activities were raised from 7.69, 7.09 and 0.003 3 to 18.40, 13.11 and 0.003 7 milli-optical density/rain/rag proteins, respectively. An increase was observed in the band intensity of esterases and esterase enzymes may play a role in clofentezine resistance in T. urticae.

关键词： acaricide resistance clofentezine esterase glutathione S-transferase monooxygenase Tetranychus urticae

An electrochemical and microstructural characterization of steel-mortar admixed with corrosion inhibitors

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Science China(Technological Sciences) 2009年第1期52卷 52-66页

作者： Tuan Anh Nguyen recep AVCI Corrosion and Sustainable Infrastructure Laboratory Western Transportation InstitutePO Box 174250College of Engineering Montana State University Bozeman Imaging and Chemical Analysis Laboratory Department of Physics Montana State University Bozeman

The present research brings new insights on the role of admixed corrosion inhibitors in the processes of cement hydration and rebar corrosion. The admixing of NaCl and the corrosion inhibitors in fresh mortar was found to alter the morphology and microstructure of the hardened mortar at the steel-mortar interfacial region. The admixing of the inhibitors increased the risk of carbonation of cement hydrates at the steel-mortar interfacial region, but partially displaced chloride ions. Chloride and the admixed inhibitors facilitated the formation of different cement hydrates and affected chloride binding at the steel-mortar interfacial region. The admixing of all three inhibitors was found to increase the polarization resistance of steel, indicating reduced corrosion rate of the steel over 48-day exposures to salt ponding.

关键词： corrosion inhibitor rebar corrosion steel-mortar interface FESEM EDX XPS EIS

Role of new ideas in the mobile phone market share

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International Journal of Modeling, Simulation, and Scientific Computing 2018年第2期9卷 161-171页

作者： Semra Gunduc recep Eryigit Department of Computer Engineering Faculty of Engineering Ankara University Golba¸sıAnkaraTurkey

In this work,dynamics of diffusion of innovation in the smartphone markets is modeled by using an agent-based simulation in a period of 28 quarters starting from *** changes in smartphone technology affected the consumer preferences and two operating systems,namely Android and iOS,out of over 10 operating systems,and dominated the smartphone markets in a period of 6 *** model aims to study the conditions of competition and adoption among similar high technology *** roles of the essential parameters,namely affordability and social effects have been the main interest points in these *** this end,a simple,Cobb–Douglas production relation-based model on simple square lattice is *** model parameters are adjusted to match the simulation results with the actual market shares data obtained from Statista.A clear relation between the model parameter values and global sales of different operating systems is observed.

关键词： Diffusion of innovation smartphone market shares individual base simulations artificial societies.