Browsing by Author "Yildiz, G"

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    The effect of SWL and URS on health-related quality of life in proximal ureteral stones
    (TAYLOR & FRANCIS LTD) Ceylan, Y; Ucer, O; Bozkurt, O; Gunlusoy, B; Mertoglu, O; Zumrutbas, AE; Yildiz, G; Irer, B; Muezzinoglu, T; Demir, O
    Objectives: We aimed to compare the effect of shock wave lithotripsy (SWL) and ureteroscopic lithotripsy (URS) on health-related quality of life (HRQoL) for the treatment of proximal ureteral stones. Material and methods: Between April 2014 and July 2015, patients with proximal ureteral stones who were successfully treated with URS or SWL in seven different centers were included. Patients were divided into two groups according to stone size: stones <= 10 mm and >10mm. HRQoL subscales which were evaluated by the Medical Outcome Study Short-Form 36-item survey (SF-36) Turkish version were compared for URS and SWL in these two groups one month after the performed procedure. Results: A total of 273 patients were included in the study. While 116 (52.5%) patients were treated with ureteroscopic lithotripsy, SWL was used for 105 (47.5%) patients. Fifty-two patients were excluded from the study. In proximal ureteral stones <= 10 mm, there were no statistically significant differences for any of the eight subscales of the SF-36 questionnaire. Regarding stones >10mm, it was found that the three subscales of the SF-36 questionnaire - role limitations because of physical health problems (RP), bodily pain (BP), and general health perception (GH) - were significantly lower in the SWL group compared with the URS group. Conclusions: Patients with proximal ureteral stones >10mm who were treated with URS generally may have a more favorable HRQoL than those treated with SWL in short-term follow-up.
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    New Alien Mediterranean Biodiversity Records (March 2020)
    (NATL CENTRE MARINE RESEARCH) Bariche, M; Al-Mabruk, SAA; Ates, MA; Büyük, A; Crocetta, F; Dritsas, M; Edde, D; Fortic, A; Gavriil, E; Gerovasileiou, V; Gökoglu, M; Huseyinoglu, MF; Karachle, PK; Kleitou, P; Kurt, TT; Langeneck, J; Lardicci, C; Lipej, L; Pavloudi, C; Pinna, M; Rizgalla, J; Özen, MR; Sedano, F; Taskin, E; Yildiz, G; Zangaro, F
    The current article presents 18 new records from seven Mediterranean countries. These records include one rhodophyte, four nudibranchs, two crustaceans, one stingray and 10 bony fishes. They are grouped by country as follows: Lebanon - first record of the Striped bass Morone saxatilis, the stingray Himantura leoparda, the Areolate grouper Epinephelus areolatus and the Spot-fin porcupinefish Diodon hystrix from various parts of the country; Turkey - first record of the invasive red alga Grateloupia turuturu from the sea of Marmara (region of Bandirma), the sea slug Goniobranchus obsoletus and the crab Arcania brevifrons from the Gulf of Antalya and the cladoceran Pleopis schmackeri from several locations along the Aegean Sea; Cyprus - first record of the alien sea slug Berthellina citrina from the region of Cape Greco and an observation of a butterflyfish Heniochus sp. from the northeastern side of the island; Greece - first record of the alien sea slug Anteaeolidiella lurana from the region of Heraklion in Crete and the record of the Atlantic spadefish Chaetodipterus faber and the Black surgeonfish Acanthurus cfr gahhm from Salamina Island; Slovenia - first record of the alien sea slug Thecacera pennigera from Izola; Italy - first record of the hybrid Striped bass (Morone saxatilis x Morone chrysops) from the northern Tyrrhenian Sea and a first record of the goldfish Carassius auratus from the region of Apulia; Libya - first record of the Red Sea goatfish Parupeneus forsskali and the African surgeonfish Acanthurus monroviae, respectively from the eastern (Al-Tamimi area) and the western shore (Al-Khums area).
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    Simulated annealing based simulation optimization method for solving integrated berth allocation and quay crane scheduling problems
    (ELSEVIER) Tasoglu, G; Yildiz, G
    This paper proposes a simulation optimization based solution approach for the integrated Berth Allocation and Quay Crane Scheduling Problems (BAP and QCSP) considering simultaneously, for the first time, multi-quay hybrid berth layout, dynamic arrivals of vessels, stochastic handling times and non-crossing constraints of quay cranes. Initially, a Conflict-Free Quay Crane Scheduling Algorithm is proposed considering stochastic handling times. Then, a general parametric simulation model which represents the seaside operations of a typical container terminal is built. Finally, a Simulated Annealing based optimization procedure is integrated with this parametric simulation model to minimize the latest vessel departure time (i.e., makespan). The proposed simulation optimization procedure is applied to a real world inspired case problem. The results revealed that the proposed simulation optimization procedure can be used to solve large-sized real-port BAPs and QCSPs for the objective of minimizing makespan. Furthermore, the output of this simulation optimization procedure gives the decision maker the estimated berthing/unberthing times, berthing locations and quay crane schedules for each vessel for the most probable scenario.
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    Safety and efficacy of single-incision sling for female stress urinary incontinence: 3 years' results
    (SPRINGER LONDON LTD) Yildiz, G; Ceylan, Y; Ucer, O; Arslan, D; Çelik, O; Gunlusoy, B
    The purpose of this study was to investigate the success and complication rates of single-incision sling for treating stress urinary incontinence (SUI), with a 3-year follow-up. This study comprised 173 female patients with SUI or mixed urinary incontinence (MUI) with dominant SUI who underwent minisling procedure. All patients had positive cough stress test preoperatively; they were followed up for 3 years after surgery (1, 3, 6, 12 months, and yearly). Total follow-up was 36 months, and mean age 51 years (44-77); 128 (74 %) patients presented SUI and 45 (26 %) MUI. Objective and subjective cure and failure rates were 83.8 % (145 cases), 6.4 % (11 cases), and 9.8 % (17 cases), respectively. There were no differences in cure rates between 1 and 3 years. Mean body mass index was 28.7 (26.1-35.2), and mean operating time 7.9 min. (6.5-11.9). There were no major intraoperative complications. Eleven patients (6.4 %) had de novo urge incontinence that resolved using anticholinergic drugs; no patient had urinary retention. Vaginal mesh extrusion was reported in nine (5.2 %) patients. The minisling system attained high success rates at 3 years' follow-up. The procedure was easy to learn and has lower complication rate.
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    Bell Polynomial Approach for the Solutions of Fredholm Integro-Differential Equations with Variable Coefficients
    (TECH SCIENCE PRESS) Yildiz, G; Tinaztepe, G; Sezer, M
    In this article, we approximate the solution of high order linear Fredholm integro-differential equations with a variable coefficient under the initial-boundary conditions by Bell polynomials. Using collocation points and treating the solution as a linear combination of Bell polynomials, the problem is reduced to linear system of equations whose unknown variables are Bell coefficients. The solution to this algebraic system determines the approximate solution. Error estimation of approximate solution is done. Some examples are provided to illustrate the performance of the method. The numerical results are compared with the collocation method based on Legendre polynomials and the other two methods based on Taylor polynomials. It is observed that the method is better than Legendre collocation method and as accurate as the methods involving Taylor polynomials.
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    Pediatric kidney care experience after the 2023 Türkiye earthquake
    (OXFORD UNIV PRESS) Bakkaloglu, SA; Delibas, A; Döven, SS; Taner, S; Yavuz, S; Erfidan, G; Vatansever, ED; Aynaci, F; Yílmaz, K; Tasdemir, M; Akaci, O; Akinci, N; Güven, S; Çiçek, N; Dursun, I; Kelesoglu, E; Sancaktar, M; Alaygut, D; Saygili, S; Yavascan, Ö; Yilmaz, A; Gülleroglu, K; Ertan, P; Demir, BK; Poyrazoglu, H; Pinarbasi, S; Gençler, A; Bastug, F; Günay, N; Çelegen, K; Noyan, A; Parmaksiz, G; Avci, B; Çayci, FS; Bayrakçi, U; Özlü, SG; Aksoy, ÖY; Yel, S; Inal, GA; Köse, S; Bayazit, AK; Atmis, B; Saribas, E; Çagli, Ç; Tabel, Y; Elmas, AT; Selçuk, SZ; Kiliç, BD; Kara, MA; Büyükçelik, M; Balat, A; Tiryaki, BD; Erdogdu, B; Aksu, B; Mahmudova, G; Dursun, H; Candan, C; Göknar, N; Mutlubas, F; Çamlar, SA; Basaran, C; Akbulut, BB; Düzova, A; Gülhan, B; Oruç, Ç; Peru, H; Alpay, H; Türkkan, ÖN; Gülmez, R; Çelakil, M; Dogan, K; Bilge, I; Pehlivanoglu, C; Büyükkaragöz, B; Leventoglu, E; Alpman, N; Zeybek, C; Tülpar, S; Gülsan, RYÇ; Kara, A; Gürgöze, MK; Önder, ENA; Atikel, YÖ; Pul, S; Sönmez, F; Yildiz, G; Akman, S; Elmaci, M; Küçük, N; Yüksel, S; Kavaz, A; Nalçacioglu, H; Alparslan, C; Dinçel, N; Elhan, AH; Sever, L
    Background. Two earthquakes on 6 February 2023 destroyed 10 cities in Turkiye. We report our experience with pediatric victims during these catastrophes, with a focus on crush syndrome related-acute kidney injury (Crush-AKI) and death. Method. Web-based software was prepared. Patient demographics, time under rubble (TUR), admission laboratory data, dialysis, and kidney and overall outcomes were recorded. Results. A total of 903 injured children (median age 11.62 years) were evaluated. Mean TUR was 13 h (interquartile range 32.5, max 240 h). Thirty-one of 32 patients with a TUR of >120 h survived. The patient who was rescued after 10 days survived. Two-thirds of the patients were given 50 mEq/L sodium bicarbonate in 0.45% sodium chloride solution on admission day. Fifty-eight percent of patients were given intravenous fluid (IVF) at a volume of 2000-3000 mL/m(2) body surface area (BSA), 40% at 3000-4000 mL/m(2) BSA and only 2% at >4000 mL/m(2) BSA. A total of 425 patients had surgeries, and 48 suffered from major bleeding. Amputations were recorded in 96 patients. Eighty-two and 66 patients required ventilator and inotropic support, respectively. Crush-AKI developed in 314 patients (36% of all patients). In all, 189 patients were dialyzed. Age >15 years, creatine phosphokinase (CK) >= 20 950 U/L, TUR >= 10 h and the first-day IVF volume <3000-4000 mL/m2 BSA were associated with Crush-AKI development. Twenty-two deaths were recorded, 20 of 22 occurring in patients with Crush-AKI and within the first 4 days of admission. All patients admitted after 7 days survived. Conclusions. These are the most extensive pediatric kidney disaster data obtained after an earthquake. Serum CK level was significantly associated with Crush-AKI at the levels of >20 950 U/L, but not with death. Adolescent age and initial IVF of less than 3000-4000 mL/m(2) BSA were also associated with Crush-AKI. Given that mildly injured victims can survive longer periods in the disaster field, we suggest uninterrupted rescue activity for at least 10 days.