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          • KCI등재

            Synergistic and selective extraction of Cd2+ from acidic solution containing Cd2+, Co2+, Ni2+ by triisooctylamine (TIOA) and tributyl phosphate (TBP)

            Ebru,Sonmez,Fatih,Sonmez,Recep,Ali,Kumbasar,Volkan,Eyupoglu 한국공업화학회 2012 Journal of Industrial and Engineering Chemistry Vol.18 No.4

            Selective and synergistic extraction of cadmium from acidic iodine solutions containing Cd2+, Co2+ and Ni2+using solvent extraction (SX) technique is presented in this study. The study has highlighted the importance of main and synergistic extractants composition. The mixtures have evident synergistic effects on Cd2+ with a synergistic enhancement factor of 2.22. The various experimental parameters were studied to determine the optimum extraction and stripping conditions of Cd2+. Under optimum conditions, the maximum extraction efficiency (99.7%) was achieved when using 1.5% (v/v) TIOA and 0.5%(v/v) TBP in dichloromethane within 5 min. Extracted Cd2+ was stripped effectively from the organic phase using 2.0 mol/L NaOH solution.

          • KCI등재SCOPUS

            Effect of Maternal Depression on Brain-derived Neurotrophic Factor Levels in Fetal Cord Blood

            Erdem,Onder,Sonmez,Faruk,Uguz,Mine,Sahingoz,Gulsum,Sonmez,Nazmiye,Kaya,Mehmet,Akif,Camkurt,Zeynel,Gokmen,Mustafa,Basaran,Kazim,Gezginc,Sami,Sait,Erdem,Hasan,Haluk,Dulger,Erkan,Tasyurek 대한정신약물학회 2019 CLINICAL PSYCHOPHARMACOLOGY AND NEUROSCIENCE Vol.17 No.2

            Objective: We aimed to assess the association between cord blood brain-derived neurotrophic factor (BDNF) concentration and maternal depression during pregnancy. Methods: A total of 48 pregnant women, admitted for elective caesarean section to Department of Obstetrics and Gynecology, The Konya Research and Training Hospital and Konya Necmettin Erbakan University Meram Medical Faculty, were included in this study. The study group included 23 women diagnosed as having depression during pregnancy and the control group included 25 pregnant women who did not experience depression during pregnancy. Results: The groups had similar sociodemographic characteristics. Cord blood BDNF concentration was significantly lower in babies born to mothers with major depression as compared with those in the control group. We didn't find any correlation between the umbilical cord blood BDNF levels and BDI scores. Conclusion: The results suggest that the existence of major depression in pregnant women may negatively affect fetal circulating BDNF levels.

          • SCIESCOPUSKCI등재후보

            Using FEM and artificial networks to predict on elastic buckling load of perforated rectangular plates under linearly varying in-plane normal load

            Sonmez,,Mustafa,Aydin,Komur,,M. Techno-Press 2010 Structural Engineering and Mechanics, An Int'l Jou Vol.34 No.2

            Elastic buckling load of perforated steel plates is typically predicted using the finite element or conjugate load/displacement methods. In this paper an artificial neural network (ANN)-based formula is presented for the prediction of the elastic buckling load of rectangular plates having a circular cutout. By using this formula, the elastic buckling load of perforated plates can be calculated easily without setting up an ANN platform. In this study, the center of a circular cutout was chosen at different locations along the longitudinal x-axis of plates subjected to linearly varying loading. The results of the finite element method (FEM) produced by the commercial software package ANSYS are used to train and test the network. The accuracy of the proposed formula based on the trained ANN model is evaluated by comparing with the results of different researchers. The results show that the presented ANN-based formula is practical in predicting the elastic buckling load of perforated plates without the need of an ANN platform.

          • Healthy Life-Style Promoting Behaviour in Turkish Women Aged 18-64

            Sonmezer,,Hacer,Cetinkaya,,Fevziye,Nacar,,Melis Asian Pacific Organization for Cancer Prevention 2012 Asian Pacific journal of cancer prevention Vol.13 No.4

            Aim: In this study we aimed to investigate the healthy life-style behaviour of Turkish women and establish influencing features. Methods: This descriptive study performed by a questionnaire method was conducted in a primary health care centre, in an urban region in Kayseri, Turkey. Every midwife region belonging to the health care centre was accepted as a cluster, and a sample of 450 women between ages 18-64, was gathered from 9 midwife regions. The Health Promotion Life-style Profile (HPLP) was applied to evaluated the healthy lifestyle behaviour of 421 women that could be reached. T test, Tukey HSD with ANOVA, and chi square tests were used for analysis. Results: The mean total HPLP was $126.8{\pm}19.2$ (interpersonal support subscale, $74.3{\pm}14.1$; nutrition subscale, $73.6{\pm}12.6$; self-actualisation subscale, $70.6{\pm}11.9$; stress management subscale, $63.4{\pm}13.0$; health responsibility subscale, $61.2{\pm}13.2$; and exercise subscale, $47.1{\pm}15.0$). There was no statistically significant variation when evaluated for age, marital state, family type, economic status, and perception of self-health, smoking, and BMI. HPLP was high in people with an education of primary school and lower in university graduates, in people who lived mostly in the city centre and in individuals with chronic diseases. In conclusion, it was established that the health promoting behaviour in Turkish women is, in general, at a medium level, and women should be enlightened in order to develop and increase the habit of health preservation and promotion.

          • SCIESCOPUS

            Linear and nonlinear site response analyses to determine dynamic soil properties of Kirikkale

            Sonmezer,,Yetis,Bulent,Bas,,Selcuk,Isik,,Nihat,Sinan,Akbas,,Sami,Oguzhan Techno-Press 2018 Geomechanics & engineering Vol.16 No.4

            In order to make reliable earthquake-resistant design of civil engineering structures, one of the most important considerations in a region with high seismicity is to pay attention to the local soil condition of regions. It is aimed in the current study at specifying dynamic soil characteristics of Kirikkale city center conducting the 1-D equivalent linear and non-linear site response analyses. Due to high vulnerability and seismicity of the city center of Kirikkale surrounded by active many faults, such as the North Anatolian Fault (NAF), the city of Kirikkale is classified as highly earthquake-prone city. The first effort to determine critical site response parameter is to perform the seismic hazard analyses of the region through the earthquake record catalogues. The moment magnitude of the city center is obtained as $M_w=7.0$ according to the recorded probability of exceedance of 10% in the last 50 years. Using the data from site tests, the 1-D equivalent linear (EL) and nonlinear site response analyses (NL) are performed with respect to the shear modulus reduction and damping ratio models proposed in literature. The important engineering parameters of the amplification ratio, predominant site period, peak ground acceleration (PGA) and spectral acceleration values are predicted. Except for the periods between the period of T=0.2-1.0 s, the results from the NL are obtained to be similar to the EL results. Lower spectral acceleration values are estimated in the locations of the city where the higher amplification ratio is attained or vice-versa. Construction of high-rise buildings with modal periods higher than T=1.0 s are obtained to be suitable for the city of Kirikkale. The buildings at the city center are recommended to be assessed with street survey rapid structural evaluation methods so as to mitigate seismic damages. The obtained contour maps in this study are estimated to be effective for visually characterizing the city in terms of the considered parameters.

          • SCOPUSSCIEKCI등재

            Brown Tumor of the Thoracic Spine : First Manifestation of Primary Hyperparathyroidism

            Sonmez,,Erkin,Tezcaner,,Tugan,Coven,,Ilker,Terzi,,Aysen The Korean Neurosurgical Society 2015 Journal of Korean neurosurgical society Vol.58 No.4

            Brown tumors also called as osteoclastomas, are rare nonneoplastic lesions that arise in the setting of primary or secondary hyperparathyroidism. Parathyroid adenomas or hyperplasia constitute the major Brown tumor source in primary hyperparathyroidism while chronic renal failure is the leading cause in secondary hyperparathyroidism. Most of the patients with the diagnosis of primary hyperparathyroidism present with kidney stones or isolated hypercalcemia. However, nearly one third of patients are asymptomatic and hypercalcemia is found incidentally. Skeletal involvement such as generalized osteopenia, bone resorption, bone cysts and Brown tumors are seen on the late phase of hyperparathyroidism. The symptoms include axial pain, radiculopathy, myelopathy and myeloradiculopathy according to their locations. Plasmocytoma, lymphoma, giant cell tumors and metastates should be ruled out in the differential diagnosis of Brown tumors. Treatment of Brown tumors involve both the management of hyperparathyroidism and neural decompression. The authors report a very rare spinal Brown tumor case, arisen as the initial manifestation of primary hyperparathyroidism that leads to acute paraparesis.

          • Which One is More Effective, Filgrastim or Lenograstim, During Febrile Neutropenia Attack in Hospitalized Patients with Solid Tumors?

            Sonmez,,Ozlem,Uysal,Guclu,,Ertugrul,Uyeturk,,Ummugul,Esbah,,Onur,Turker,,Ibrahim,Bal,,Oznur,Budakoglu,,Burcin,Arslan,,Ulku,Yalcintas,Karabay,,Oguz,Oksuzoglu,,Berna Asian Pacific Organization for Cancer Prevention 2015 Asian Pacific journal of cancer prevention Vol.16 No.3

            Background: Chemotherapy-induced febrile neutropenia (FN) with solid tumors causes mortality and morbidity at a significant rate. The purpose of this study was to compare the effects of filgastrim and lenograstim started with the first dose of antibiotics in hospitalized patients diagnosed with FN. Materials and Methods: Between February 2009 and May 2012, 151 patients diagnosed with FN were evaluated, retrospectively. In those considered appropriate for hospitalization, convenient antibiotic therapy with granulocyte colony stimulating factors was started within first 30 minutes by completing necessary examinations in accordance with FEN guide recommendations. Results: In this study, 175 febrile neutropenia attacks in 151 patients were examined. Seventy three of the patients were male and 78 were female. The average age was 53.6 and 53.6, respectively. The most common solid tumor was breast carcinoma in 38 (25%). One hundred and five FN patients (58%) were those who received granulocyte colony stimulating factors as primary prophylaxis. Conclusions: While studies comparing both drugs generally involve treatments started for prophylaxis, this study compared the treatment given during the febrile neutropenia attack. Compared to lenograstim, filgastrim shortens the duration of hospitalization during febrile neutropenia attack by facilitating faster recovery with solid tumors.

          • KCI등재SCOPUS

            Flax Fibres Fabric Surface Decoration with Nanoparticles - a Promising Tool for Developing Hybrid Reinforcing Agent of Thermoplastic Polymers

            Maria,Sonmez,Denisa,Ficai,Ioana,Lavinia,Ardelean,Roxana,Trusca,Laurentia,Alexandrescu,Doina,Constantinescu,Zeno,Ghizdavet,Ovidiu,Oprea,Anton,Ficai,Ecaterina,Andronescu 한국섬유공학회 2019 Fibers and polymers Vol.20 No.11

            In this study, the synthesis and characterization of functionalized flax fabric with adequate titanium and aluminiumprecursors is presented (AlCl3 or Ti(C4H9O)4). The modified flax fabrics were analysed both visually and instrumentally byIR spectroscopy and microscopy, scanning electron microscopy (SEM) and thermal analysis (DTA-TG). The data highlightthat the nature and amount of functionalizing agent induce important morphological changes of the surface. These flaxfabrics decorated with alumina or titanium dioxide nanoparticles are desired to be used as reinforcing agents of differentrecycled polyethylene terephthalate. The properties will be designed by the nature, processing route and amount of theprecursors used for the surface modification of these cellulosic fibres/fabrics, the surface decoration increasing their thermalproperties (especially thermal stability) but also surface properties (especially roughness, hydrophilic/hydrophobic ratio,etc.). All these factors will finally induce improved compatibility between phases and thus improved physico-mechanical andthermal properties. Taking into account the large amount of natural cellulosic fibres and recycled thermoplastic polymers,added-value products will be obtained and at the same time some environmental issues are solved. The expected applicationscan include the fabrication of automotive parts, protective panels for highways and railways, etc.

          • KCI등재SCIESCOPUS

            An investigation of anchorage to the edge of steel plates bonded to RC structures

            M.,Sonmez,M.E.,Kara,F.K.,Firat,T.,Karabork 국제구조공학회 2016 Steel and Composite Structures, An International J Vol.22 No.1

            This paper presents the results of an experimental study investigating the effects of anchorage systems used in externally bonded steel plates on the strength and ductility of reinforced concrete structures. In the literature, diagonal steel plates bonded to frames were designed to be more flexible than the connections to eliminate the possible effect of the connection flexibility. However, to better evaluate the performance of the strengthened structures, the strength and behavior of connections should also be considered. The purpose of this study was to experimentally investigate the effects of different connection types of steel plates bonded to the frame using anchors on the strengthened RC structures. For this purpose, eleven specimens were designed to simulate the interior and exterior connection behavior. Two of these were used as the control beams and remaining nine for the investigation of the functionality of the end steel plates. Experimental results show that the load carrying capacity of the strengthened beams is directly related to the connection types of the steel plates. For the interior connections, L-shaped end plates that were strengthened using steel anchors must have adequate stiffness to prevent its shape. While, for the exterior connections, the connection with three anchors carried more load than the other exterior connections.

          • Awareness of Cancer Screening During Treatment of Patients with Renal Failure: A Physician Survey in Turkey

            Uysal-Sonmez,,Ozlem,Tanriverdi,,Ozgur,Uyeturk,,Ummugul,Budakoglu,,Isil,Irem,Kazancioglu,,Rumeyza,Turker,,Ibrahim,Budakoglu,,Burcin,Yalcintas-Arslan,,Ulku,Oksuzoglu,,Berna Asian Pacific Organization for Cancer Prevention 2014 Asian Pacific journal of cancer prevention Vol.15 No.5

            Background: Today, survival rate of patients with chronic renal failure/hemodialysis has increased so that chronic illnesses are more likely to occur. Cancer is the main cause of morbidity and mortality in such patients. Aim: In this study, physician attitudes were examined about cancer screening in patients with renal failure. Materials and Methods: This study was done by face to face questionnaire in the $27^{th}$ National Nephrology Congress to determine if the physicians dealing with chronic renal failure, hemodialysis or renal transplanted patients, recommend cancer screening or not and the methods of screening for cervix, prostate, breast and colon cancer. Results: One hundred and fifty six physicians were included in the survey. A total of 105 (67%) participants were male and the age of responders was $48{\pm}9$ years. About 29% were specialists in nephrology, 28% internal medicine, and 5% were other areas of expertise. Some 48% of participants were hemodialysis certified general practitioners. Patients were grouped as compensated chronic renal failure, hemodialysis or renal transplanted. Of the 156 responders, 128 (82%) physicians recommended breast cancer screening and the most recommended subgroup was hemodialysis patients (15%). The most preferred methods of screening were combinations of mammography, self breast examination and physicianbreast examination. 112 (72%) physicians recommended cervix cancer screening, and the most preferred method of screening was pap-smear. Colon cancer screening was recommended by 102 (65%) physicians and prostate screening by 109 (70%) physicians. The most preferred methods of screening were fecal occult blood test and PSA plus rectal digital test, respectively. Conclusions: It is not obvious whether cancer screening in renal failure patients is different from the rest of society. There is a variety of screening methods. An answer can be found to these questions as a result of studies by a common follow-up protocol and cooperation of nephrologists and oncologists.

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