Comparison of Users' Adoption and Use Cases of Facebook and Their Academic Procrastination

Academic procrastination is one of the many types of postponing behaviors which almost every person demonstrates from time to time. One of the sources of academic procrastination, which can be expressed as postponing academic-based works to another time without a particular reason, is replacing the work to be done with pleasurable activities such as the internet use. The aim of this study is to compare the adoption and use cases of online social networks which are accessible via the internet and used quite intensively, and academic procrastination behaviors of Facebook users. In this context, the data acquired from 715 Facebook users were analyzed through SPSS 15 software. It was found out that people who use Facebook in accordance with their social relations have higher tendency for academic procrastination than people who use it for daily purposes, furthermore, people who use Facebook for academic purposes do not have a tendency for academic procrastination as a result of the statistical analysis conducted. Another output is that users with high level of adoption of Facebook have more tendency for academic procrastination than users with medium and low level of adoption of Facebook.Academic procrastination is one of the many types of postponing behaviors which almost every person demonstrates from time to time. One of the sources of academic procrastination, which can be expressed as postponing academic-based works to another time without a particular reason, is replacing the work to be done with pleasurable activities such as the internet use. The aim of this study is to compare the adoption and use cases of online social networks which are accessible via the internet and used quite intensively, and academic procrastination behaviors of Facebook users. In this context, the data acquired from 715 Facebook users were analyzed through SPSS 15 software. It was found out that people who use Facebook in accordance with their social relations have higher tendency for academic procrastination than people who use it for daily purposes, furthermore, people who use Facebook for academic purposes do not have a tendency for academic procrastination as a result of the statistical analysis conducted. Another output is that users with high level of adoption of Facebook have more tendency for academic procrastination than users with medium and low level of adoption of Facebook

INVESTIGATION OF THE EFFECTIVENESS OF THE ANGER MANAGEMENT SKILLS PSYCHOEDUCATION PROGRAM FOR HIGH SCHOOL STUDENTS BASED ON COGNITIVE BEHAVIORAL THERAPY

The aim of this study is to examine the effect of the Cognitive Behavioral Therapy (CBT) based anger management psychoeducation program on the anger management skills of high school students. While the independent variable of the study is the anger management psychoeducation program based on CBT, the dependent variable is the trait anger level, anger inside, anger outside, and anger control scores determined by the Trait Anger-Anger Expression Style Scale of the adolescents. The sample of the study consists of 10th and 11th grade volunteer students studying at Ahlat Selçuklu Anatolian High School. In this study, which consists of experimental and control groups an experimental design was used; pre-test, post-test, and follow-up tests were applied. Among the volunteer students, 10 participants were randomly assigned to the experimental group and 10 participants to the control group. While the program developed by the researcher was applied to the experimental group for seven weeks, no application was made to the control group. While collecting the data of the study, the “Trait Anger-Anger Style Scale” was used. Mann-Whitney U test was used to compare the pretest and posttest scores of the experimental and control groups, and Wilcoxon Singed to compare the pretest and posttest, the posttest and follow-up test of the experimental group, and the pretest and posttest of the control group, and the posttest and follow-up test. Ranks test was used. Analysis of the research was carried out using the IBM SPSS 22.0 package program. As a result of the study, it was observed that there was a significant difference in the levels of trait anger, anger inside, anger outside, anger control levels of the participants in the experimental group, which are sub-dimensions of STAS. In the control group, there was no significant difference in any of the sub-dimensions. It can be said that the developed program has a positive effect. The findings were examined within the scope of the literature and it is thought that it will contribute to the literature by presenting practical suggestions in the study.  Article visualizations

Novel plasmonic devices for nano-photonics applications

Ankara : The Department of Electrical and Electronics Engineering and the Graduate School of Engineering and Science of Bilkent University, 2013.Thesis (Ph. D.) -- Bilkent University, 2013.Includes bibliographical references leaves 128-152.Plasmonics have attracted a great deal of interest because of their potential to design novel photonics devices which have unique optical properties. This dissertation focuses on novel plasmonic device designs for photonics applications. Electromagnetic properties of metamaterials are characterized and the resonance mechanism of Split Ring Resonator (SRR) structure is investigated. Furthermore, novel SRR-based metamaterial structures are studied. We demonstrated the significant plasmonic enhancement in the transmission characteristics through a sub-wavelength aperture by utilizing SRR resonances. Electrical tuning of plasmonic resonance with varying gate bias by using graphene is observed. Also, electrical properties of graphene is investigated. Fabrication of electrically gated graphene based plasmonic structures are realized. In addition, we utilized metamaterials to design novel photonic devices and we experimentally studied and numerically verified the novel propagation characteristics of graphene-based photonic devices and 3D nanostructures. The proposed structures are designed, simulated, fabricated and measured. The simulations and experimental results are in good agreement and shows significant enhancement of transmission characteristics of plasmonic devices. The dimensions of the structures that are designed in our work is less than 10 times smaller than the incident wavelength (r/λ~0.1) which is a desired property for enhanced light confinement of sensors. Also, the gate tuning of SRR's plasmonic resonance is the first demonstration in the contemporary literature according to our knowledge.Şahin, LeventPh.D

Bir Sosyal Politika Aracı Olarak Eğitim ve Türkiye'deki Durumu

DergiPark: 315808trakyaiibfBu çalışma,kalkınmanın katalizörü görevini gören “eğitim” olgusunun neoliberalizmsürecindeki evrimini ve Türkiye’deki mevcut durumunun temel parametrelerledeğerlendirilmesini merkeze almıştır. Bu doğrultuda çalışmanın amacı,neoliberalizm sürecinde Türkiye’de eğitimin yapısını, işleyişini ve sorunlarınıokullaşma oranları, okul, öğrenci, öğretmen ve derslik sayıları, GSMHiçerisinden eğitime ayrılan bütçe payları ve temel eğitim sorunlarıçerçevesinde incelemektir. Bu incelemede kullanılacak olan veriler, TC Millî EğitimBakanlığı Strateji Geliştirme Başkanlığı’nın yayımladığı resmî istatistiklerdenelde edilmiştir. Çalışmanın sonucunda, Türkiye’de özellikle son 15 yıllık zamaniçerisinde eğitim göstergelerinin hemen hepsinde olumlu bir gidişat gözükmeklebirlikte, gelişmiş Batı ülkeleriyle kıyaslandığında önemli yetersizlikler barındırdığıtespit edilmiştir.

Heavy metal contamination of Pleuronectiformes species from Sinop coasts of the Black Sea

In the Turkish Black Sea coasts fish is particularly consumed because of high protein supplies, essential amino acids, vitamin, and mineral content. Fish are exposed to contaminants such as heavy metals in polluted waters. The aims of the study are to determine heavy metals in Pleuronectiformes species from Sinop coasts of the Black Sea and determine the health risks due to the consumption of contaminated fish. Pleuronectiformes species Scophthalmus maximus (Linnaeus, 1758) belonging to Scophthalmidae family, Arnoglossus laterna (Walbaum, 1792) belonging to Bothidae family and Pegusa lascaris (Risso, 1810) belonging to Soleidae family were collected from Sinop coasts of the Black Sea in fishing season of 2016. Heavy metals (Hg, Cd, Pb, Cu and Zn) in edible tissues were determined by ICP-MS (Agilent 7700x). The limit values given by the international and national organizations did not exceed in the muscle tissues of turbot, Mediterranean scald fish and sand sole. Overall Zn was detected in higher concentrations in all species followed by Cu, Pb, Hg and Cd. The results obtained from the analyses of the maximum levels of the metals except Hg were found in turbot. The highest Hg (0.021±0.007 µg g-1 wet wt.) was found in sand sole. However, the high amounts of Cd, Pb, Cu and Zn in turbot were 0.011±0.004, 0.07±0.005,1.32±0.28 and 14±3 µg g-1 wet wt., respectively. The EDIs and EWIs of the metals were estimated taking into account the mean of metal in all fish samples and the mean consumption of fish per day/week for adults. These results are normally significantly lower than the recommended values of FAO/WHO. Estimated HIs of all the considered metals were below the value of 1, therefore the metals in fish samples do not toxic any apparent threat to the population and these fishes are healthy for consumption.Keywords: Scophthalmus maximus, Arnoglossus laterna, Pegusa lascaris, heavy metals, Black Se

HEALTH SECTOR WORKERS’ PERCEPTION OF VIOLENCE: THE CASE OF ISTANBUL UNIVERSITY FACULTY OF MEDICINE

DergiPark: 315524trakyaiibfThis study focused on the violence in health industry which is a topicthat doesn’t have many academical study, lecture, activity report, Project orgraduate thesis on. The main aim of the study is to measure the violencetendency of the health workers and encountered violence types of the healthworkers, also to estimate the main causes of the violence and trying to measurethe demographical and social structures of the people carrying out the violenceacts.This measurement is being done among the employees of the İstanbulUniversity İstanbul Medical Faculty, the oldest medical Faculty in Turkey, by aperception violence survey. The survey results were interpreted by thefrequency analysis method. Those, the method used for the interpreting theresults and the target group that the surver was done on increase theimportance of the study.As a result of the study, it was seen that violence in the healthindustry increased as results of the delays in health services and dissatisfactionof people from the health services. The other general results of the study arethose; violence by applied generally not by the patients but by the relativesof the patients, generally by the low educated males, all over the hospital,  generally in daytime working hours as verbalinsults

Postpartum Cystic Juvenile Granulosa Cell Tumor: A Case Report

Introduction: Juvenile granulosa cell tumor (JGCT) is a subtype of granulosa cell tumors of the ovary. 80% of JGCT occurs at prepubertal period. And, it is considered to be a slow growing tumor. In addition, gross appearence of it is mostly solid. Herein, we report a pure cystic JGCT case that was detected soon after childbirth with huge dimension.Presentation of Case: We report a 21 year-old woman who presented with abdominal mass during 6th month after childbirth. Ultrasound revealed a cystic mass of approximately 20 cm in diameter originated from left ovary. The patient underwent laparotomy and unruptured left ovarian cystic mass resection was performed. Uterus and right ovary were totally normal and extraovarian spread was not found. Macroscopic examination revealed totally cystic tumor of 25,5x22x10,2 cm with smooth outlines, containing serous fluid. There were papillary projections and small polypoid structures around 1 cm in diameter into the cavity. Histopathologic and immunohistochemical findings were compatible with JGCT. Relaparotomy was performed for staging and the patient was evaluated as stage IA. She is currently under clinical follow up without any further treatment.Conclusion: It should be noted that JGCT may rapidly grow and reach a higher dimension, occur during pregnancy and at postpartum period, and may present as cystic rather than a solid mass as in our case presented here

Optimization of Rheology Parameters for Feedstock by Powder Injection Molding (PIM) Via Taguchi Analysis

The most critical process in the powder injection molding method is determining the powder/binder rate and its properties. The most important feature that distinguishes the powder injection molding method from other powder metallurgy production methods is its advantage in producing high raw density and complex shaped parts. However, providing these advantages includes a multi-parameter process that directly affects the injection molding parameters and the final part's mechanical properties. In addition, the difficulty of experimental studies causes energy, time, and cost losses in determining the powder/binder rate and rheological properties of the feedstock so that the advantages of the method turn into a manageable disadvantage. This study performed rheology studies for three different feedstocks (PW/CW/SA, PW/PE/SA, and PEG8000/PP/SA). In this context, this paper determined the rheological properties of different feedstocks to take advantage of the Taguchi analysis. Flow behavior index, viscosity and optimum loading rates were determined separately for all feedstocks. The results exhibited the injection molding can be done with the determined best (58% steatite+PEG8000/PP/SA) F3 feedstock by volume. Based on it was found that viscosity and melt flow index were not a problem for injection molding in three different feedstocks used in the result, advantages and disadvantages were observed

Optimization of Rheology Parameters for Feedstock by Powder Injection Molding (PIM) Via Taguchi Analysis

The most critical process in the powder injection molding method is determining the powder/binder rate and its properties. The most important feature that distinguishes the powder injection molding method from other powder metallurgy production methods is its advantage in producing high raw density and complex shaped parts. However, providing these advantages includes a multi-parameter process that directly affects the injection molding parameters and the final part's mechanical properties. In addition, the difficulty of experimental studies causes energy, time, and cost losses in determining the powder/binder rate and rheological properties of the feedstock so that the advantages of the method turn into a manageable disadvantage. This study performed rheology studies for three different feedstocks (PW/CW/SA, PW/PE/SA, and PEG8000/PP/SA). In this context, this paper determined the rheological properties of different feedstocks to take advantage of the Taguchi analysis. Flow behavior index, viscosity and optimum loading rates were determined separately for all feedstocks. The results exhibited the injection molding can be done with the determined best (58% steatite+PEG8000/PP/SA) F3 feedstock by volume. Based on it was found that viscosity and melt flow index were not a problem for injection molding in three different feedstocks used in the result, advantages and disadvantages were observed

The Role of Media Literacy in Online Information Searching Strategies

Along with the spread of Web 2.0 technologies, individuals' habits such as learning, socializing, and getting information have changed rapidly. A lot of information, the accuracy of which cannot be trusted, is available in the web, and it becomes difficult to choose useful, relevant, and accurate information. This pollution is also present in the media. The abilities to choose messages in the media, to look at these messages critically, and to produce your own messages are considered among the 21st-century skills. These reasons bring media literacy (ML) and online information searching strategies (OISS) to the agenda. The processes of ML and OISS have interrelated features. Therefore, it is important and necessary to examine these concepts together. Based on this necessity, the aim of the study was to determine the role of ML in OISS. To this end, the data were collected from 1809 pre-service teachers using the OISS inventory and the ML level determination scale. Data were analyzed by descriptive statistics, MANOVA, and multiple regression analysis. According to the results, pre-service teachers' ML and OISS levels were above the moderate level. ML and OISS vary significantly according to the type of websites. In conclusion, ML was revealed as a predictor variable that could explain OISS at a rate of 33.2%