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Mixture Performance of Bitumen Modified with Cocamide Diethanolamide

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Journal of Wuhan University of Technology(Materials Science) 2021年第5期36卷 706-713页

作者： Oznur karadag Mehmet Saltan Civil Engineering Department Suleyman Demirel UniversityIsparta 32040Turkey

Bituminous binders have been modified by using cocamide *** chemical material used in this study is used for the first-time on the purpose of modification of the *** addition to the conventional bitumen tests(penetration,softening point and ductility tests),adhesion and peeling tests(Vialit,Nicholson and California tests)were carried out on the bituminous binders which are modified with different ratios of cocamide *** to the results of the tests,the most appropriate additive ratio has been *** containing the reference bituminous binder and the bituminous binder modified with the most appropriate cocamide diethanolamide ratio were prepared using the superpave volumetric mix design method(SuperpaveTM).In accordance with standard method of test for resistance of compacted asphalt mixtures to moisture-induced damage(AASHTO T 283),the moisture susceptibility of prepared samples has been *** order to observe the changes in strength due to the temperature difference,prepared samples were subjected to the freeze-thawing test in accordance with standard test method for resistance of concrete to rapid freezing and thawing(ASTM C 666).

关键词： cocamide diethanolamide superpaveTM freeze-thaw cycle moisture susceptibility adhesion

Gastric pneumatosis intestinalis associated with malignancy:An unusual case report

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World Journal of Gastroenterology 2009年第6期15卷 758-760页

作者： Ahmet Bilici Berrin karadag Alper Doventas Mesut Seker Department of Medical Oncology Dr.Lutfi Kirdar Kartal Education and Research HospitalKartal 34210 IstanbulTurkey Department of Internal Medicine Sisli Etfal Education and Research Hospital34210 IstanbulTurkey Department of Internal Medicine Istanbul Education and Research Hospital34210 IstanbulTurkey

Pneumatosis intestinalis(PI)is an uncommon disease defined as gas-filled cysts that are found in the wall of the gastrointestinal(GI)*** exact causes of PI are still unclear,but it may associated with coexisting diseases,such as some GI disorders,connective tissue disease,some medication and drugs,and rarely *** most common localization is the small *** PI secondary to malignancy has been rarely *** report on a 94-year- old man with gastric PI associated with inoperable adenocarcinoma localized in the *** the gastrojejunostomy and choledochojejunostomy bypass,his general condition improved and PI disappeared,but he died due to poor performance status and malignancy 6 mo *** suggest that in patients presenting with PI,malignancy should be considered in the differential diagnosis.

关键词： Pneumatosis intestinalis Malignancy Adenocarcinoma

New approach: removal of silicone oil and trocar assisted sutureless scleral fixated intraocular lens implantation at the same session

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International Journal of Ophthalmology(English edition) 2014年第4期7卷 734-736页

作者： Yuksel Totan Remzi karadag Department of Ophthalmology Fatih University School of Medicine Department of Ophthalmology Istanbul Medeniyet University School of Medicine

Dear Sir,Iam *** karadag,from the Department of Ophthalmology,Istanbul Medeniyet University School of Medicine,Istanbul,Turkey.I write to present two case reports of removal of silicone oil and trocar assisted suturel... 详细信息

关键词： IOL TSV New approach

Mechanical properties and microstructure of composites produced by recycling metal chips

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International Journal of Minerals,Metallurgy and Materials 2018年第9期25卷 1070-1079页

作者： Abdullah Aslan Aydin Günes Emin Salur Omer Sinan Shin Hakan Burak karadag Ahmet Akdemir Department of Mechanical Engineering Selcuk UniversityKonya 42079Turkey Department of Metallurgy and Materials Engineering Necmettin Erbakan UniversityKonya 42079Turkey Department of Aircraft Engineering Necmettin Erbakan UniversityKonya 42079Turkey

In this study, the processing and mechanical properties of porous metal matrix composites(MMCs) composed of spheroidal cast iron chips(GGG40) and bronze chips(CuSn10) and formed by hot isostatic pressing were investigated. Bronze chips(CuSn10) were used as a matrix component, and spheroidal cast iron(GGG40) chips were used as a reinforcement component. The MMCs were produced with different CuSn10 contents(90 wt%, 80 wt%, 70 wt%, and 60 wt%). The hot isostatic pressing process was performed under three different pressures and temperatures. The produced MMCs were characterized using density tests, Brinell hardness tests, and compression tests. In addition, the consolidation mechanism was investigated by X-ray diffraction(XRD) analysis and scanning electron microscopy. The test results were compared with those for bulk CuSn10 and bulk GGG40. Mechanical tests results revealed that the metallic chips can be recycled by using hot pressing and that the mechanical properties of the produced MMCs were similar to those of bulk CuSn10. XRD and microscopy studies showed that no intermetallic compounds formed between the metallic chips. The results showed that the CuSn10 and GGG40 chips were consolidated by mechanical interlocking.

关键词： metal matrix composite microstructure metal chips recycle mechanical behavior

Ex-PRESS implantation for different types of glaucoma

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International Journal of Ophthalmology(English edition) 2019年第8期12卷 1290-1297页

作者： Meltem Guzin Altinel Ayse Yagmur Kanra Remzi karadag Huseyin Bayramlar Department of Ophthalmology Fatih Sultan Mehmet Trainingand Research HospitalIcerenkoy Atasehir34752IstanbulTurkey Dunyagoz Hospitals Group Sultanbeyli34337IstanbulTurkey Department of Ophthalmology Istanbul Medeniyet UniversitySchool of MedicineGoztepe Research and Training HospitalGoztepe34000IstanbulTurkey

AIM: To evaluate the clinical results, efficacy and safety of Ex-PRESS P200 glaucoma shunt implant in different types of medically uncontrolled glaucoma. METHODS: The study included 31 eyes of 31 patients that were unresponsive to medical antiglaucomatous therapy in whom Ex-PRESS P200 glaucoma shunt implantation was performed. The demographic characteristics of the patients, type of glaucoma, complete ocular examination results, number of antiglaucomatous drugs before and after surgery, early and late complications of surgery, additional surgical and nonsurgical medical interventions, and success rates were investigated from the patients’ files, retrospectively. RESULTS: The mean postoperative follow-up time was 16.4±7.5 mo. The preoperative mean corrected intraocular pressure(IOP) was 28.7±10.3 mm Hg and postoperative mean corrected IOP was 15.3±5.2 mm Hg(P<0.05) at the last visit. The mean IOP reduction was 39.9% when the preoperative and postoperative values of the last visits were compared. The average number of antiglaucomatous drug use decreased from 3.9±0.3 to 1.7±1.7 postoperatively(P<0.05). The use of antiglaucomatous medications at the last visit was more than in other studies in the literature. The most common complication was conjunctival leakage, which was seen in 7 patients. Other early complications were iris touch, intravitreal hemorrhage, hyphema, choroidal effusion, early transient hypotonia and corneal edema. One of the late complications was endophthalmitiswhich was seen in one case 6 mo after the operation, and the other late complication was opacification of the cornea in one patient. Twelve additional surgical operations associated to Ex-PRESS surgery and 3 bleb needling have done. At the last visit, the complete success rate was 32.3% and the qualified success rate was 77.5% in all patients. CONCLUSION: Ex-PRESS P200 glaucoma shunt implantation may be an effective procedure for medically uncontrolled glaucoma with significantly lower use of a

关键词： glaucoma Ex-PRESS implant glaucoma surgery

Effects of body mass index on intraocular pressure and ocular pulse amplitude

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International Journal of Ophthalmology(English edition) 2012年第5期5卷 605-608页

作者： Remzi karadag Zeynel Arslanyilmaz Bahri Aydin Ibrahim F. Hepsen Department of Ophthalmology Istanbul Medeniyet University Medical SchoolIstanbul Turkey Department of Ophthalmology Fatih University Medical SchoolAnkara Turkey

AIM: To investigate the effects of body mass index (BMI) on intraocular pressure (IOP) and ocular pulse amplitude(OPA). METHODS: Totally 140 healthy individuals without any systemic diseases were included in the study. BMI (kg/m2) was calculated for every individual. IOP and OPA were measured with Pascal Dynamic contour tonometer (DCT). Blood pressure was also measured along with the DCT. The patients were divided into three groups according to BMI as: Group1, BMI<25; Group2, 25≤BMI<30; Group3, BMI≥30. Mean values of IOP, OPA, systolic blood pressure (SBP) and diastolic blood pressure (DBP) were used in statistical ***: In Group1, the means of IOP, OPA, were 16.8±2.3mmHg, 2.7±0.7mmHg respectively; and SBP, DBP were 120.0±6.1mmHg, and 77.4±5.6mmHg respectively. In group2, the mean IOP, OPA, SBP, and DBP were found to be 16.6±2.1mmHg, 2.4±0.7mmHg, 121.7±5.3mmHg, and 79.5±4.9mmHg respectively. In group3, the mean IOP, OPA, SBP, and DBP were found to be 17.3±1.7mmHg, 2.1±0.7mmHg, 122.4±5.7mmHg, and 79.7±5.2mmHg respectively. There were no statistically significant difference between groups in terms of IOP, SBP and DBP, while OPA values were significantly lower in group3 (P=0.001). CONCLUSION: Decreased OPA values in individuals with higher BMI may indicate that subjects with higher BMI have lower choroidal perfusion and lower ocular blood flow.

关键词： body mass index choroidal perfusion intraocular pressure ocular pulse amplitude obesity

Relationship between fall risks and activities of daily living in older individuals

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Frontiers of Nursing 2020年第3期7卷 249-256页

作者： Senay karadag Arli Metin Yildiz Ayse Berivan Bakan Department of Nursing Agri Ibrahim Cecen University School of HealthAgri 04100Turkey

Objective:To investigate the relationship between fall risks and maintaining activities of daily living in individuals aged 65 and ***:This study is *** was conducted with 233 individuals who were aged 65 and over in Family Health Centers located in the eastern part of Turkey between February and June ***:The mean older individuals’DENN Fall Risks Assessment Scale score was 11.73±7.13,and 62.2%of the participants were in the high-risk *** Index of Activities of Daily Living(ADL)mean score was 68.03±25.36,and 45.1%of the participants were in the moderately dependent *** was a statistically significant,negative correlationship between Barthel Index of ADL score and age and DENN Fall Risks Assessment Scale *** addition,there was a statistically significant,positive relationship between the DENN Fall Risks Assessment Scale score and age(p<0.01).Conclusions:This study found that level of dependency and fall risks increased with the increase in *** global and multidisciplinary interventions are needed to decrease older individuals’dependency levels and fall risks today when the number of older individuals is increasing.

关键词： activities of daily living dependency older fall risk

Coexistence of duodenum derived aggressive fibromatosis and paraduodenal hydatid cyst: A case report and review of literature

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World Journal of Gastrointestinal Surgery 2018年第8期10卷 90-94页

作者： Sami Akbulut Mehmet Yilmaz Saadet Alan Mehmet Kolu Nese karadag Department of Surgery and Liver Transplant Institute Inonu University Faculty of Medicine Department of Surgery Inonu University Faculty of Medicine Department of Pathology Inonu University Faculty of Medicine Department of Radiology Inonu University Faculty of Medicine

Intra-abdominal aggressive fibromatosis is a locally aggressive tumor mostly originating from the mesentery or retroperitoneal space, infiltrating adjacent tissues, and very rarely metastasizing to distant organs. There are only two case reports in the English language literature where intra-abdominal aggressive fibromatosis originated from the intestinal wall. In this study, we aimed to report a case of aggressive fibromatosis originating from the muscularis propria layer of the duodenum and invading pancreas. Another interesting aspect of this case is that a primary paraduodenal hydatid cyst was incidentally detected in the surgical specimen. A 46-year-old female patient presented to our clinic with postprandial nausea and vomiting. A contrast-enhanced abdominal computerized tomography revealed a mass lesion with a size of 100 mm × 80 mm which originated from the distal pancreas and compressed the gastric pilor externally. Upon exploration the distal part of duodenum, proximaljejunum, and pancreatic mass were noted to form a conglomerated structure. Therefore, the fourth part of the duodenum, a 25 cm part of the proximal jejunum, distal pancreas, and the spleen were excised enbloc. The pathology report of the specimen indicated fibromatosis with a diameter of 55 mm that originated from the muscularis propria of the duodenum and extended into the pancreatic parenchyma. There was also an incidentally detected 10 mm paraduodenal hydatid cyst. No tumor recurrence was detected at a follow-up period of 24 mo. In conclusion, the most ideal treatment of desmoid-type fibromatosis is surgical resection of the mass lesion with clean surgical borders. Although rare, this tumor may originate from the intestinal wall. Histopathological verification is of great significance for a proper diagnosis.

关键词： Duodenal wall Hydatid cyst Aggressive fibromatosis Intra-abdominal fibromatosis Desmoid tumor Desmoid-type fibromatosis

A geriatric patient with diffuse idiopathic skeletal hyperostosis

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World Journal of Gastroenterology 2010年第13期16卷 1673-1675页

作者： Berrin karadag Huseyin Cat Selma Aksoy Banu Ozulu Ali Osman Ozturk Sukru Oguz Yuksel Altuntas Sisli Etfal Research and Training Hospital 2.Internal Medicine Clinic Sisli Etfal Research and Training Hospital Neurology Clinic Sisli Etfal Research and Training Hospital Radiology Clinic

The most frequent health problems seen in senility are chronic and degenerative diseases. A 75-year-old male patient with the complaints of weight loss and difficulty in swallowing was admitted to our hospital from a nursing home. Upper system fiber-optic gastrointestinal endoscopy was performed and a mass at the junction of the hypopharynx and esophagus just below recessus piriformis obstructing almost the whole of the lumen and blocking the distal passage was detected. Computed tomography revealed marked narrowing secondary to osseous hypertrophy in the air column of the hypopharynx and proximal esophagus. Diffuse idiopathic skeletal hyperostosis or Forestier’s disease is an idiopathic disease characterized by the ossification of the anterior longitudinal ligament of vertebra and some of the extraspinal ligaments. In the present case we aim to discuss an elderly patient who suffered from dysphagia and weight loss and the diagnostic stages.

关键词： Dysphagia Diffuse idiopathic skeletal hyperostosis Elderly Weight loss