İletişim Fakültesi / Faculty of Communication
Permanent URI for this collectionhttps://hdl.handle.net/11727/1400
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Item The Mediating Role of Organisational Cynicism on the Relationship Between Technostress and Job Performance: A Research on Teachers(2022) Yalcin, Rukiye Can; Gokmen, Yunus; Erdem, Haluk; Turen, UfukThis study's primary purpose is to examine organisational cynicism's mediating role in the relationship between technostress and job performance. Data are obtained from 234 teachers working in public and private schools in Turkey. In the study, correlation and regression analyses have been performed to determine the relationships and effects between variables, and the structural equation model has been used to verify the scales of the variables. In addition, the mediation role in the study has been examined with the bootstrap test in the Process module. Findings show that the validity and reliability of the scales are ensured by the results of commonly used validity and reliability analysis methods. Additionally, technostress and organisational cynicism decrease job performance and technostress significantly increase organisational cynicism. Further mediation analysis reveals that organisational cynicism partially mediates the relationship between technostress and job performance.Item Protective Motivators and Precautionary Behaviors Against COVID-19 in Turkey(2023) Turen, Ufuk; Gokmen, Yunus; Erdem, Haluk; Kalkin, Gokdeniz; 35394534In this research, we investigated the protection motivators and precautionary behaviors against coronavirus disease 2019 (COVID-19) and the associations between them. To do this, we developed two original scales, collected data (2783 responses) using an online survey, after removing the responses (319), which were filled in incompletely or incorrectly in the questionnaire, we obtained 2464 participants covering the aged 18+ population in Turkey. Based on random sampling, our sample complies with these ratios and generally reflects the aged 18+ population of Turkey. We confirmed the psychometrical validity and reliability of our two scales using the collected data. Herewith, we found that perceived susceptibility of COVID-19 infection is very high, perceived severity of COVID-19 is medium, COVID-19 related information seeking is high, beliefs on precautions' efficacy is high and also the practice of precautionary behaviors is high. Our research depicts that all protection motivators significantly are related with the practice of precautionary behaviors (routine and leisure). However, with the only exception of perceived severity of COVID-19 is not related with precautionary behaviors (routine). Besides, we saw that females' average in all variables is significantly higher than males and some variables are sensitive to age, education level, marital status and the number of children. We believe that the findings provide essential inputs for authorities in establishing public health policies against the present pandemic and likely ones in the future.Item Accepting Restrictions and Compliance With Recommended Preventive Behaviors for COVID-19: A Discussion Based on the Key Approaches and Current Research on Fear Appeals(2021) Demirtas Madran, H. Andac; 0000-0002-3444-8845; 34163389COVID-19 (Coronavirus disease 2019) is a novel coronavirus which was first detected in late December 2019 in the Wuhan Province of China. This novel coronavirus, caused by a zoonotic beta-coronavirus (SARS-CoV-), is described as highly infectious. The World Health Organization (WHO) named the novel coronavirus as COVID-19 on February 11, 2020, and declared it as a "pandemic." Almost all countries have undertaken wide-scale precautions so as to prevent or limit the spread of the virus, with most having practiced some form of "lockdown" along with "social distancing," as well as dispensed recommendations for proper hand washing, avoiding touching the face, wearing facemasks, and using disposable tissues when either coughing or sneezing. Whereas it is well known that slowing the spread of this new epidemic requires the cooperation of all citizens, some people still seem to willfully disregard the rules and guidelines, and thereby ignore the health risks posed to both themselves and to others they come into contact with. People have responded differently to lockdown rules and social distancing practices. Whilst the majority follow the rules and recommendations with great care, others are more lax or simply refuse to comply. These differences might be accounted for according to a number of factors including personal, social, cultural, mental, and economic variables. Being persuaded to comply with preventive rules, especially those concerned with health-related behaviors, also bring certain other factors into play. Fear is one of those factors, and is one of the most powerful. It is well known that fear-based appeals can be effective in inculcating health behaviors, with many theories having been developed in this area. However, both the content of the message (the level of the fear it contains) and certain personal variables can determine the persuasive power of the fear appeal. It can even have an adverse effect if not properly applied. Many theories have been developed to address the persuasive effectiveness of the fear appeal (e.g., fear-drive theory, protection-motivation theory), and this study aims to discuss these individual differences in precautionary and preventive measures for the COVID-19 pandemic within the framework of the basic assumptions of these theoretical approaches.Item Exploring the Motivation Behind Discrimination and Stigmatization Related to COVID-19: A Social Psychological Discussion Based on the Main Theoretical Explanations(2020) Demirtas-Madran, H. Andac; 0000-0001-5582-2608; 33281671; AAC-1925-2020The novel coronavirus (COVID-19), was first detected in Wuhan province in China during late December 2019 and was designated as being highly infectious. The World Health Organization (WHO) labeled it a "pandemic" on March 11, 2020. Throughout human history, experience has shown that prejudices and viruses spread simultaneously during a viral pandemic. Outgroup members have been associated with various diseases and non-human vectors of diseases. Some epidemics have been named according to various outgroups, just as the novel coronavirus has been referred to by some as the "Wuhan virus" or the "Chinese virus." Associating a virus with a sociodemographic group builds a false illusionary correlation, which can lead to stigmatization and discrimination. Pandemics can also stimulate violent xenophobic reactions. Besides the obvious harmful consequences for the individuals targeted, pandemic-related discrimination also affects the spread of the virus through its effect on public attitudes toward prevention and restriction, health service procurement, and in the establishment of health-related policies. It is important to first understand the relevant concepts and processes, and also to understand the underlying causes of discrimination in order to fight it. Social psychology offers multidimensional and comprehensive explanations of prejudice and discrimination. This review's primary aim was to examine the motivations behind COVID-19-related discrimination based on social psychological perspectives. In line with this aim, the review first defines discrimination in detail, plus the related concepts and main social psychological theories on prejudice and discrimination. Then, pandemic-related discrimination in light of past experiences is discussed and explanations put forward for the theoretical perspectives and inferences specific to COVID-19. Finally, recommendations are made in order to prevent and combat discrimination related to infectious diseases.Item Does Robot-assisted Surgery in Urology Has Benefits? The Current Status(2019) Sah, Cem; Kuzgunbay, Baris; 0000-0001-5598-4666Minimally invasive surgery has gradually replaced the conventional surgery with the introduction of laparoscopy. Subsequently, with intensive advertisement and marketing strategies, robot-assisted surgery became popular and robot-assisted surgery has been used in almost every surgical procedure. Despite its high cost, the robotic platform, which has proven its general advantages such as less hospital stay and less blood loss, has become controversial in the literature in terms of cost effectiveness. In this study, the advantages and disadvantages of the robot-assisted surgery in urology have been reviewed in the light of current literature.Item Assessment of Hemoglobin Stability in Chronic Hemodialysis Patients Receiving Erythropoietin Therapy and the Effect of Hemoglobin Stability on Risk of Cardiovascular Disease(2019) Guncan, Melda Ulas; Guncan, Sabri; Torun, DilekObjective: Anemia is one of the most important factors that decrease the quality of life in patients with end-stage renal desease receiving hemodialysis treatment. In these patients, Erythropoietin stimulating agents (ESAs) are used in the treatment of anemia. Although the target hemoglobin (Hb) value in chronic renal failure is 11-12 gr/dL, it is suggested that hemoglobin values fluctuate between normal, high and low values in the great majority, leading to cardiovascular structural changes which increase mortality. In this study, we investigated the effect of anemia and hemoglobin fluctuations on mortality rate and the risk of cardiovascular disease in chronic hemodialysis patients who received ESA thearapy. Materials and Methods: Hemoglobin values for 12 months of 181 patients were examined. The target Hb level was 11-12 gr/dL interval and the patients were divided into 6 groups according to the hemoglobin values; persistently low, low-normal, target, normal-high, low-high and persistently high. According to the variability in hemoglobin level, groups were compared in terms of demographic, laboratory characteristics, treatment, risk of cardiovascular disease, hospitalization and death frequency and causes. Result: The total of 181 patients were classified according to Hb levels; 22 (12.2%) patients were persistently-low, 72 (39.8%) were low-normal, 10 (5.5%) were normal-high and 77 (42.5%) patients were low-high Hb group. During the 12 month fallow up, there were no patients in target and high Hb group. The groups were similar in terms of the presence of comorbid diseases such as diabetes, hypertension, coronary artery disease and other demographic characteristics, and there was no difference between groups in terms of cardiovascular disease development. ESA doses and blood transfusion counts and mortality rates were significantly higher in the persistently-low hemoglobin group compared to the other groups. Conclusion: In our study, high rate of anemia and hemoglobin fluctuations were shown in chronic hemodialysis patients and anemia was associated with mortality. However, the possible association of these variables with cardiovascular diseases was not observed. Further studies are needed in the larger hemodialysis patient group to investigate the relationship between hemoglobin fluctuation and mortality and cardiovascular risk.Item Square root central difference-based FastSLAM approach improved by differential evolution(2016) Ankishan, Haydar; Ari, Fikret; Tartan, Emre Oner; Pakfiliz, Ahmet GungorThis study presents a new approach to improve the performance of FastSLAM. The aim of the study is to obtain a more robust algorithm for FastSLAM applications by using a Kalman filter that uses Stirling's polynomial interpolation formula. In this paper, some new improvements have been proposed; the first approach is the square root central difference Kalman filter-based FastSLAM, called SRCD-FastSLAM. In this method, autonomous vehicle (or robot) position, landmarks' position estimations, and importance weight calculations of the particle filter are provided by the SRCD-Kalman filter. The second approach is an improved version of the SRCD-FastSLAM in which particles are improved by a differential evolution (DE) algorithm for reducing the risk of the particle depletion problem. Simulation results are given as a comparison of FastSLAM II, unscented (U)-FastSLAM, SRCD-Kalman filter-aided FastSLAM, SRCD particle filter-based FastSLAM, SRCD-FastSLAM, and DE-SRCD-FastSLAM. The results show that SRCD-based FastSLAM approaches accurately compute mean and precise uncertainty of the robot position in comparison with FastSLAM II and U-FastSLAM methods. However, the best results are obtained by DE-SRCD-FastSLAM, which provides significantly more accurate and robust estimation with the help of DE with fewer particles. Moreover, consistency of the DE-SRCD-FastSLAM is more prolonged than that of FastSLAM II, U-FastSLAM, and SRCD-FastSLAM.Item The Wide Open Windows of Cholera Street: On the Light and Sound Leaking Through/To the Private Space(2018) Aytemiz, Pelin; AAE-9744-2022Inspired by the subaltern studies the purpose of this article is to examine how the dichotomy of private/public in Metin Kacan's Agir Roman Novel is reproduced on the axis of the visual language used by Mustafa Altioklar's cinematic adaptation Cholera Street. The article is interested in the peculiar choice of slang usage and reads this as an invitation to blur the borders of private/public space that modern life demands to keep separate. In this sense, Cholera Street can also be regarded as a brilliant piece of social commentary, offering a vivid peek into the life of the "other" trapped in the peripheral neighborhood. This article unravels further how Cholera Street through visual film grammar and various metaphors sends strong critical messages about the silence of subalterns who often lack the means to speak for themselves and how the violation of privacy turns out to be a challenging act against the dominant order.Item The Critique of Mirror in Rene Magritte's Paintings(Actas del VII Congreso Cultura Europa., 2002) Aygün Cengiz, Serpil