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Öğe Bilateral Simultaneous Percutaneous Nephrolithotomy in Children(Elsevier Science Bv, 2010) Güven, S.; Öztürk, A.; Arslan, M.; Pişkin, M.; İstanbulluoğlu, O.; Kılınç, M.Introduction & Objectives: Children with bilateral kidney stones are generally treated using staged percutaneous nephrolithotomy (PNL). Reports related with simultaneous bilateral PNL (SBPNL) in children are scarce. In this paper, we aimed to evaluate the efficacy and safety of SBPNL in children. Material & Methods: The children who underwent SBPNL applications between January 2007 and February 2010 in our clinic were evaluated. Patient data were collected from the retrospective reviews of hospital recordsÖğe Breed Of Sire And Parity Effects On Litter Size Of Konya Merino Sheep(INDIAN VETERINARY ASSN, 1996) Öztürk, A.[Abstract not Available]Öğe The effect of some testicular characteristics of Akkaraman and Awassi rams on litter size(1996) Öztürk, A.; Dağ, B.; Zülkadir, U.In this study. some testis characteristics of 27 Akkaraman and 28 Awassi rams were determined and the relationship between testis size and their mothers' litter size were investigated. Testis diameter, testis lenght, scrotal circumference and scrotum lenght were found as 6.44, 12.17. 33.75 and 18.03 cm for Akkaraman rams and for Awassi rams 5.86, 11.95, 31.70 and 17.63 cm, respectively. There were statistically significant differences between breeds for testis diameter and scrotal circumference (P<0.01), and the differences for testis lenghts and scrotum lengths were no found significant. Correlations between liveweights and testis measurements were found statistically significant for Akkaraman rams, and found insignificant for Awassi rams. The results of this investigation indicated that there were no significant differences between litter sizes of rams' mothers having large and little testis size for both breeds.Öğe Evaluation of the Potential Beneficial Effects of Ostrich Eggshell Combined With Eggshell Membranes in Healing of Cranial Defects in Rabbits(Sage Publications Ltd, 2003) Durmuş, Ercan; Çelik, İlhami; Öztürk, A.; Özkan, Y.; Aydın, M. F.Potential beneficial effects of outer and inner ostrich eggshell membranes alone and in combination with the shell powder on bone regeneration in cranial defects of 18 rabbits were investigated using radiological, clinical and histological methods. Three 6 mm wide, half-thickness defects were made in the calvarial bones of each rabbit. One defect remained empty as a control; prepared eggshell membranes were extended across the other two defects; and prepared eggshell powder was inserted inside the membrane in one case. Either alone or in combination with eggshell powder, the outer and inner ostrich eggshell membranes produced little adjunctive effect under the conditions and duration of this experiment.Öğe Geology of the Yanıklar-Çiftlik-Karagedik (Fethiye- Muğla,Turkey) Area and Mineralogical, Petrographical and Geochemical Characteristics of Chromite Occurrence(2009) Karadağ, M. M.; Karagöz, M.; Öztürk, A.The study area is located at the southwest end of Taurid Orogenic belt, around Yaniklar-Çiftlik-Karagedik (Fethiye-Mu?la) and covers approximately an area of 77 km2. In the study area magmatic and sedimentary rocks formed in Mesozoic-Senozoic period crop out. Eventhough the Upper Triassic-Low Jurassic Kayaköy formation represented by dolomite, cherty dolomite and dolomitic limestone occurs at the basement of the study area. This unit lies tectonically on the Upper Jurassic-Lower Cretaceous Babadag formation comprising micritic limestone with chert nodules. The Upper-Cretaceous Çövenliyayla formation composed of spilitic basalt thrusted on the Babada? formation. The Upper-Cretaceous Marmaris peridotite rest on the Çemenliyayla formation with a tectonic contact. It comprises serpentinized harzburgite, dunite, serpentine and pyroxenite and dolerite dykes cutting above mentioned rock units. All these units were unconformably covered by dirty yellow, yellow and grayish conglomerate, claystone and sandstone of the Pliocene Çameli formation, Quaternary alluvium, block sized talus and beach deposits. Multidirectional fracture and joint systems resulted from thrust tectonic of the Alpine orogene. But it is difficult to determine a dominant stress direction. The present morphology has been gain as a result of folding developed by tectonic movement of the Alpin orogenez and the litologies acting differently againts erosional processes. Serpentinization occurred in basic and ultrabasic rocks, at the contact between dyke and host rocks, at fault zone and also especially along fractures and joints within peridotite mass. The Fethiye chromite deposits were found in the tectonit harzburgite within the Marmaris peridotite. They are massive, disseminated, nodular and banded in type, and are classified as "aluminium chromite" based on their composition In the light of field observation and obtained data. It is concluded that the chromites in the study area were originated from a magma which is poorer in silica and aluminum than those of a typical basaltic magma in which the pediform chromite is formed. With regard to the trace element content, the Ni and Zn contents of the Fethiye chromite are very close to these in other pediform type chromite. But they are rich in Ni and poor in Zn compared with the stratiform chromite deposits.Öğe Prevalence of Benign Prostatic Hyperplasia in Turkish Men Admitted to the Urology Department(Progres en Urologie, 2000) Öztürk, A.; Serel, T. A.; Koşar, A.; Keçelioğlu, M.Objectives: The prevalence of clinical benign prostatic hyperplasia (BPH) is known in Western European countries and in North America, but epidemiological data are lacking for Eastern European and Balkan countries. The objective of this study was to determine the prevalence of BPH in this region. Methods: We analysed the data obtained on patients with BPH reported by urologists from 48 hospitals in Turkey in 1996. This analysis is based on 84, 149 case files for patients aged 40 to 80 Nears and more. Results: The overall prevalence of clinical BPH was 18.5%. The age-specific predominance of BPH reached a maximum for the 60-69 years age-group. A majority of cases of BPH were treated medically (54.7% of cases). Conclusion: The data are discussed in the light of our current knowledge. Our presentation is the first report concerning the prevalence of clinical BPH in our region, but it needs to be completed to determine the prevalence of clinical BPH in relation to age, country and race in the Balkans and the Middle East.Öğe Protection of Ac Motors by Means of Microcontrollers(IEEE, 2000) Çunkaş, M.; Akkaya, R.; Öztürk, A.In this study, a system was designed and implemented to make protection for the current, voltage, winding temperature of induction motors. In the system, the voltage transformer with transformation ratio of 400/5V and current transformer with transformation ratio of 25/5A were connected to each phase of induction motors. The circuit was designed for measuring the winding temperature. The sampling circuit was realized that low AC signals taken from transformers secondary windings and sensed temperature values convert into DC values. Control process was implemented by using PIC 16C84 microcontroller. To input reference values and to monitor these values, the LCD's and a keypad was added to microcontroller. sampled DC values were transmitted into the microcontroller by using Analog-Digital-Converter(ADC) unit. Measured data art compared with reference values by means of software. When a low voltage, high voltage, high current, voltage and current unbalance, high winding temperature or single phasing are sensed, the system opens its normally soft starter after a trip delay. Trip and reset delays prevent nuisance tripping due to rapidly fluctuating power line conditions. Besides, data such as current, voltage, temperature which are acquired by microprocessor are transmitted to the central PC by means of RS232C series communication line. In this wry the motor data could be observed at any moment on PC monitor. The PC then shows a message corresponding to power-system fault, and alerts the operator.Öğe Repeatability Estimate of Prolificacy in Akkaraman and Awassi Sheep(INDIAN VETERINARY JOURNAL, 2001) Öztürk, A.[Abstract not Available]Öğe Repeatability Estimates of Birth-Weight and Gestation Period in Awassi Sheep(Indian Veterinary Assn, 1995) Öztürk, A.[Abstract not Available]
