İletişim Fakültesi / Faculty of Communication
Permanent URI for this collectionhttps://hdl.handle.net/11727/1400
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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 Kişilerarası İletişimde Sapkın Şiddet: Manevi Taciz (Mobbing)(Kriz Dergisi ,2 ,15 ,1-14, 2007) Aygün Cengiz, SerpilKişilerarası iletişimde sapkın şiddet olarak "manevi taciz" (mobbing) yeni bir olgu olmamasına rağmen bu sapkın şiddetin ismi konularak tanımlanıp araştırılması ve davalara konu edilmesi yeni bir olgudur. Sapkın bir şiddet türü olarak manevi taciz, aile içi ortamdan iş yerine kadar insanların yarattığı her türlü toplumsal gruplaşma içinde ortaya çıkabilmektedir. Zararsız davranışlarla başlayıp mağdur olan kişinin ortamdan uzaklaşması veya uzaklaştırılması ile sonuçlanan manevi taciz, sadece yöneldiği kurbana maddi ve manevi zarar vermekle kalmamakta; şiddetin yaşandığı kuruma da büyük ölçüde zarar vermektedir. Çoğunlukla sağlıksız kişilerarası iletişim biçimlerinin yaşandığı ve şiddet kültürünün yeniden üretildiği ortamlarda ortaya çıkan bu saldırı türü fark edildiği anda durdurulmalıdır: Manevi taciz olaylarına tanık olanların etik açıdan, yönetimde olanların ise yasal açıdan müdahale etmesi zorunludur. Manevi tacize uğrayanların ise farkındalık bilinciyle hareket ederek yakınlarından, kurumiçi yöneticilerden, yasa insanlarından, bu şiddeti yaşayanlardan ve ruh sağlığı profesyonellerinden destek/yardım almaları, bu kişilerin yıkıcı ruhsal saldırılar karşısında daha güçlü durarak mücadele etme olanaklarını artıracaktır. Mobbing as interpersonal violence has been newly defined and been taken to court although it has not been a new phenomenon. Mobbing is a persistent and systematic harassment which can be observed during communication situations. Mobbing can occur in different ways and it causes incalculable economic and psychological harm for both the targeted worker and the employer. People those who witness mobbing should ethically intervene and the employer should provide a safe, respectful work environment for all employees ana also mobbed people should get support from his/her relatives, employer, law people, other mobbed persons and mental health professionals who will help him/her to struggle with mobbing more powerfully.Item Kül Tegin ve Bilge Kağan Yazıtlarında Kadın Üzerine Bir İnceleme(,Kültür Dergisi ,103 ,58-61, 1994) Aygün, SerpilItem Siyasal İktidarın Meşrulaştırılması Sürecinde Kuttören-Basın İlişkisi: Ankara Bayram gazetesi Örnek Olayı(Folklor/Edebiyat Dergisi ,25 ,7 ,21-33, 2001) Aygün Cengiz, Serpil; Turan, MetinItem Kimlik İnşasında Kağıt Kentlerin Kağıt Mezarlıkları(Doğu Batı Düşünce Dergisi ,5 ,4 ,153-163, 2001) Aygün Cengiz, SerpilItem Rene Magritte'te Aynanın Kırılışı(Folklor/Edebiyat Dergisi ,24 ,6 ,241-253, 2001) Aygün Cengiz, SerpilItem Alan, Zaman, Kurallar ve Amaç Çerçevesinde Oyunun Neliği Üzerine(1997) Aygün Cengiz, Serpil