Hukuk Fakültesi/ Faculty of Law
Permanent URI for this collectionhttps://hdl.handle.net/11727/1398
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Item How to Approximate Cosine Curve with 4(Th) and 6(Th) Order Bezier Curve in Plane?(2022) Kilicoglu, Seyda; Yurttancikmaz, SemraThere are many ways to approximate cosine curve. In this study we have examined the way how the cosine curve can be written as any order Bezier curve. As a result using the Maclaurin series we have examined cosine curve as the 4(th) and the 6(th) order Bezier curve based on the control points with matrix form in E-2. We give the control points of the 4(th) and the 6(th) order Bezier curve based on the coefficients. Also we give the coefficients based on the the control points of the 4(th) and the 6(th) order Bezier curve too.Item A FULLY ONLINE COURSE EXPERIENCE FROM STUDENTS' PERSPECTIVE: READINESS, ATTITUDES AND THOUGHTS(2019) Cabi, Emine; Kalelioglu, Filiz; 0000-0002-7729-5674; AAF-8110-2019The purpose of the study was to reveal the effect of a course taken through distance education on students' readiness and attitudes. Sequential explanatory design method was used as a research method in which qualitative and quantitative measurements were used in the research. For the quantitative data, a single group pre-test/post-test design was used as an experimental model; for the qualitative data, open-ended questions were asked in order to elicit students' opinions following the experimental process. The study group consisted of 266 students from different faculties and departments who were studying undergraduate and associate degree programmes at a private university in Turkey. Results indicated that the course taken through distance education had a significant effect on students' gaining Computer and Internet SelfEfficacy and was effective in improving undergraduate students' self-directed learning skills. Moreover, the course taken through distance education had a significant effect on students' familiarity with e-learning. Additionally, the course was found to be effective in decreasing the escape attitudes from e-learning.Item The outcome of loco-regional radiotherapy in metastatic castration-resistant prostate cancer patients treated with abiraterone acetate.(2019) Yildirim, Berna; Cem, Onal; Kose, Fatih; Oymak, Ezgi; Sedef, Ali Murat; Besen, Ali Ayberk; Aksoy, Sercan; Guler, Ozan Cem; Sumbul, Ahmet Taner; Mertsoylu, Huseyin; Ozyigit, Gokhan; 0000-0001-6908-3412; D-4793-2014; AAC-5654-2020Item Long-Term Oral Nutrition Supplementation Improves Outcomes in Malnourished Patients With Chronic Kidney Disease on Hemodialysis(2014) Sezer, Siren; Bal, Zeynep; Tutal, Emre; Uyar, Mehtap Erkmen; Acar, Nurhan Ozdemir; 24436491Background: There is no consensus on the type, time of initiation, or duration of use of enteral nutrition in patients with chronic kidney disease (CKD). This study aimed to compare the effects of a renal-specific oral nutrition supplement (RS-ONS) and a standard recommended nutrition regime on biochemical and nutrition markers in malnourished patients with CKD on hemodialysis. Methods: Sixty-two malnourished patients with CKD, divided into experimental (RS-ONS; n = 32; mean [SD] age, 62.0 [11.3] years; 55.2% female) and control (CON; n = 30; mean [SD] age, 57.2 [12.3] years; 31% female) groups, were evaluated for anthropometric, biochemical, and inflammatory parameters. Results: Mean (SD) serum albumin levels were significantly increased in the RS-ONS group from 3.5 (0.3) g/dL at baseline to 3.7 (0.2) g/dL at 6 months (P = .028). Significantly fewer patients had serum albumin levels of <3.5 g/dL after month 6. Dry weight of patients significantly increased in the RS-ONS but decreased in the CON groups (P < .001 for each). Percent change from baseline revealed negative results for bioelectrical impedance analysis (P < .001) in the CON group. Malnutrition inflammation score at 6 months (P = .006) and erythropoietin (EPO) dose requirements were higher in the CON group (P = .012). Conclusions: Our findings indicate that consuming RS-ONS improves serum albumin and anthropometric measures, as well as reduces EPO dose, in patients with CKD.Item New-Onset Diabetes and Glucose Regulation Are Significant Determinants of Left Ventricular Hypertrophy in Renal Transplant Recipients(2015) Sezer, Siren; Uyar, Mehtap Erkmen; Tutal, Emre; Bal, Zeynep; Guliyev, Orhan; Colak, Turan; Hasdemir, Efe; Haberal, Mehmet; 25945353Background. New-onset diabetes after transplantation (NODAT) is associated with decreased graft survival and an increased risk for cardiovascular disease. The objective of this study was to evaluate the risk factors for development of NODAT and its' relationship with arterial stiffness and left ventricular mass index (LVMI) in kidney transplant recipients. Methods. 159 kidney transplant recipients were selected from our transplantation center who underwent renal transplantation between years 2007 and 2010. Results. Among 159 patients, 57 (32.2%) patients were with NODAT who were significantly older than patients without diabetes (P: 0.0001). Patients with NODAT had significantly higher pulse wave velocity (PWv) (P: 0.033) and left ventricular mass index LVMI (P: 0.001) compared to patients without NODAT. Further analysis was done according to LVMI as follows: LVMI > 130 g/m(2) (n: 57) and LVMI <= 130 g/m(2) (n: 102). We observed higher office systolic and diastolic BP, serum trygliceride, glucose, creatinine, age, and HbA1c (P: 0.0001) levels in patients with LVMI > 130 g/m(2). Linear regression analysis revealed that HbA1c was the major determinant of LVMI (P: 0.026, beta: 0.361). Conclusions. HbA1c is the major determinant of LVMI, so strict control of serum glucose levels is essential for preventing cardiovascular disease in patients with NODAT.Item Balloon Dilatation of Iatrogenic Ureteral Strictures after Upper Urinary Tract Reconstruction(2015) Duman, Enes; Yildirim, Erkan; Akillioglu, Ishak; Yucesan, SelcukPurpose: Open pyeloplasty is the gold standard treatment of uretero-pelvic junction (UPJ) stenosis. Although failure after open pyeloplasty or uretero-neosistosmy is not common, percutaneous or endoscopic interventions must be necessary in some cases. We present treatment of 6 pediatric patients by balloon dilatation after failed surgery. Material and Methods: Between 2008 and 2013 6 children were treated. Five patients had undergone open pyeloplasty for UP stenosis and, one has uretero-vesical anastomosis stricture after ureteroneosistostomy. Percutaneous antegrade balloon dilatation and double J stent placement were performed in three of six patients. In the other three patients retrograde endoscopic balloon dilatation and double J stent placement were performed. Results: Primary technical success was %50 and %100 for antegrade and retrograde approach respectively. Antegrade approach has failed in 3 patients (%50) and, retrograde approach and treatment were successful in all of these patients. Secondary and tertiary balloon dilatations were done through antegrade approach in 3 patients. Mean duration of double J stent was 114 days. As of today, five patients are followed smoothly. One patient who has UP stenosis underwent secondary open surgery. Conclusion: Balloon dilatation can be used safely in both antegrade and retrograde approaches because of lower profile of balloon catheters, so it could be considered as a first line treatment option after failed surgical treatment of upper urinary tract stenosis in children.Item Effect of the Bioadhesive, BioGlue, on Impaired Colonic Anastomose Healing in Rats(2015) Ekici, Yahya; Akcay, Eda Yilmaz; Moray, GokhanColonic anastomotic leakage is still a problem in general surgery practice. We sought to investigate the effect of a new tissue adhesive, BioGlue, on the healing of normal and impaired colonic anastomoses. Sixty-four rats were randomized into 4 groups. In all animals, a 1-cm segment of the left colon was resected, and an end-to-end sutured anastomosis was created. Animals were then divided into 2 groups: normal and impaired anastomosis. These 2 groups were further subdivided into 2 additional groups: animals that received BioGlue and those that did not. All rats received intraperitoneal injections of either 0.9% NaCl or 5-fluorouracil (5-FU). Anastomotic evaluation was done 7 days after surgery. Macroscopic healing, mechanical strength, and histopathologic healing parameters were evaluated. Leakage of the anastomosis was significantly higher in rats in the impaired group compared with those in the BioGlue groups (P = 0.043). The adhesion formation score was significantly higher in rats in the impaired anastomosis group compared with the other groups. Bursting pressures were significantly lower in the impaired anastomosis group than in the other ones (P = 0.001). Neoangiogenesis and fibroblast activity were different among the groups (P = 0.001). Inflammatory cell infiltration and collagen deposition did not differ among the groups (P = 0.07). Immediate postoperative intraperitoneal administration of 5-FU after colonic anastomosis inhibits intestinal wound healing. Covering colon anastomoses with BioGlue after suturing conferred beneficial effect on healing.Item Evaluation of peripheral perfusion in term newborns before and after Yintang (EX-HN 3) massage(2015) Tugcu, Ali Ulas; Cabioglu, Tugrul; Abbasoglu, Aslihan; Ecevit, Ayse; Ince, Deniz Anuk; Tarcan, Aylin; 26742308OBJECTIVE: To identify how acupressure on the acupoint Yintang (EX-HN 3) impacts oxygen saturation, pulse rate, and peripheral perfusion in term-born infants without underlying disease. METHODS: Infants born between weeks 37 and 42 of gestation were included in this study. The polyclinic's neonatology room was noise-controlled and made half-dark to prevent the perfusion index from being confounded. A pulse oximeter was linked to the baby's left lower extremity. Acupressure was applied on Yintang (EX-HN 3) for 30 s clockwise, held for 30 s, and then acupressure was applied for another 30 s counterclockwise. The baby's SaO(2), pulse rate, and perfusion index were recorded for each minute before and after acupressure. RESULTS: When pre- and post-acupressure pulse rate values were compared, a significant decrease in pulse rate values after acupressure application was observed. When pre- and post-acupressure oxygen saturation values were compared, a significant increase in post-acupressure oxygen saturation was observed. In addition, peripheral perfusion increased significantly after acupressure. CONCLUSION: Acupressure application has been used in traditional medicine for many years. However, it is not yet widely used in modern medicine. This study shows the impact of acupressure on neonatal skin perfusion, oxygen saturation, and pulse rate. (C) 2015 JTCM. All rights reserved.Item Association between treatment with coil embolization of renal artery aneurysm and resistant hypertension(2016) Duman, Enes; Yildirim, Erkan; Ciftci, Ozgur; Cifci, EgemenHypertension is the number one risk factor in preventable causes of death in the world. Resistant hypertension is defined as blood pressure that remains uncontrolled despite at least three antihypertensive medications including a diuretic. Treatment of hypertension includes many modalities from lifestyle changing to multiple drug using, angioplasty. In this case report, we aim to emphasize the effects of renal artery aneurysm treatment on resistant hypertension.Item The Impact of a Semiotic Analysis Theory-Based Writing Activity on Students' Writing Skills(2016) Sarar Kuzu, TulayProblem Statement: In entering the world intellectually and affectively equipped, humans develop in a systemic way that encompasses both thought and art education and in which written, oral, and visual texts are important tools. In particular, visual literacy, which refers to the interpretation of elements other than written text, including images, symbols, shapes, and colors, has come into prominence through new learning approaches that emphasize the importance of using numerous stimuli. All texts convey a meaning and a message, which to comprehend requires textual analysis, the different theories and methods of which vary among various types of texts. As discussed in this article, the semiotic analysis theory provides tools for textual analysis concerning the dimensions of narrative discourse. Purpose: This study aimed to determine how a writing lecture activity based on semiotic analysis theory affects students' writing skills. To that end, cartoon caricatures were selected as visual texts for analysis. Method: This experimental research based on pre- and post-tests was conducted with a dependent group of 40 7th-grade students in a school within Turkey's Ministry of Education. Data collection involved having each student develop two texts for caricature analysis: one prior to an experiment based on the traditional approach, and the other after an experiment based on the semiotic method. The differences between scores received for each text by all students were analyzed. Findings: Results revealed that textual analysis based on the semiotic theory was more effective for the writing skills of students than the traditional writing method with respect to three areas of evaluation: understanding the subject, accessing the message, and multidimensional interpretation. Conclusion and Recommendations: The findings suggest that the proposed method of semiotic analysis is an alternative to traditional methods used in Turkish-language courses that can enhance the effectiveness of learning and positively affect students' creative-writing skills.