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    Frequency curves of high and low flows in intermittent river basins for hydrological analysis and hydraulic design

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    Upper and lower percentiles of Flow Duration Curves (FDCs) of daily streamflow data were investigated to develop frequency curves. Upper percentiles with exceedance probability of 1, 5 and 10% (Q1, Q5, Q10) were used for high flows, and lower percentiles with non-exceedance probability of 10, 5 and 1% (Q90, Q95, Q99) for low flows. Median value (Q50) was covered to represent the average conditions of streamflow. A mixed frequency analysis based on the total probability theorem taking zero values into account was applied for the lower percentiles of FDC. Case studies were performed for three intermittent Streamflow Gauging Stations (SGSs) from Kucuk Menderes River Basin in western Turkey. An overall assessment of results shows that the best-fit probability distribution function does not change from one SGS to another considerably for low flows while each SGS has its own probability distribution function for high flows. Upper and lower percentiles, and median value were calculated at various return periods by using the identified probability distribution functions. The calculated values were plotted in the form of frequency curves of high flow percentiles and low flow percentiles. The frequency curves have a practically significant potential use in hydrological analysis, water resources management and hydraulic design under high and low flow conditions. They are yet open to further development for regionalization and their applicability can be extended to ungauged sites in river basins.Ege UniversityNo Statement Availabl

    Histopathological Changes in The Spinal Cord Tissue of Rats Administered an Experimental Mussel Diet

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    Aim: Regional eating habits show that it causes neurodegenerative problems due to heavy metals that can accumulate in consumed foods and affect tissues such as the nervous system. Since crustaceans such as mussels feed by filtering the water, they are exposed to toxic plankton and various chemicals, especially heavy metals. Due to the limitations of experimental studies on this subject, the effects of mussel consumption on the spinal cord were investigated. Methods: In this study, histopathological changes in the spinal cord tissue of rats fed with shellfish collected from the Dardanelles were determined. The subjects were divided into two groups, and the first group was fed standard rat food for 4 weeks, and the second group was fed a mussel diet. At the end of the study, spinal cord tissue samples taken from rats were subjected to routine histopathological procedures and evaluated under a light microscope. Results: In the experimental group, a decrease in the number of neurons in the medulla spinalis and an increase in the number of astrocytes were noted. TUNEL staining showed that apoptosis occurred intensively in glial cells, but did not occur in anterior and posterior horn motor neurons. Conclusion: The findings showed that long-term mussel consumption can cause axonal damage in motor and sensory neurons and degeneration in glial cells. For this reason, it is important for health that marine diets in coastal areas are made with healthy and hygienic products

    Cumhuriyetin 100. Yılında Tarımsal İnovasyonda Türkiye

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    Bu çalışmada, içinde bulunduğumuz yüzyılın tarımsal üretimin sürdürülebilirliği açısından önceki yüzyıllara kıyasla çözülmesi güç sorunlarla karşı karşıya olduğu ve bu sorunların üstesinden gelebilmek için geleneksel üretim yöntemlerinin artık yeterli olmadığı, bu nedenle tarımsal araştırmaların ve tarım teknolojilerinin ortaya koyduğu bilimsel bilginin kullanıldığı üretim süreçlerinin planlanması gerektiği vurgulanmaktadır. Çalışmanın birinci kısmında kavramsal çerçevenin temel bileşenleri olarak tarım sektörünün karşılaştığı çoklu riskler ile tarımda sürdürülebilirlik kavramı ve inovasyon üzerinde durulmaktadır. Çalışmanın ikinci kısmında, dünyada gıda arzı güvenliğinin sağlanması ve açlıkla mücadelede Birleşmiş Milletler Gıda ve Tarım Örgütü, FAO’nun (Food and Agricultural Organization) ve diğer uluslararası kurumların önderlik ettiği Ar-Ge pilot proje uygulamaları incelenmektedir. Çalışmanın üçüncü kısmında, Cumhuriyetin 100. Yılında tarımsal inovasyonda Türkiye’nin durumu ele alınmakta ve tarım teknolojileri ve tarımsal inovasyonda dünya lideri olan Hollanda’nın bu alanındaki ilerlemeleri ve politika stratejileri ortaya konmaktadır. Sonuç bölümünde de iklim değişikliklerine karşı sürdürülebilir bir tarımsal üretim ve gıda arzı güvenliğini sağlayabilmek için Türkiye’nin kendi tarım teknolojisi yatırımları nasıl geliştirilebilir konusunda fırsatlar ve tehditler ortaya konulmaktadır

    Development a tourist guide application using augmented reality technology

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    Son yıllarda dijitalleşmeninde etkisiyle diğer her sektörede olduğu gibi turizm sektöründe de büyük bir dönüşüm yaşanmaktadır. Çalışmanın konusu olan artırılmış gerçeklik sistemleri ise bu dönüşüm de oldukça etkili olan bir diğer teknolojik faktördür. Ziyaret etmek istediğiniz bir müzede, ya da turistik olarak gitmeyi planladığınız bir şehirde, karşılaşmanız kuvvetle muhtemel olan artırılmış gerçeklik uygulamaları, turizm sektörünün gözdesi ve hayatımızın bir parçası olmuş durumdadır. Bu çalışma, beş temel bölümden oluşmaktadır. Çalışmanın birinci bölümünde, araştırmanın teknik ayrıntıları başlığı altında çalışmanın problemi, amacı, önemi, varsayımları ve sınırlılıkları açıklanmıştır. İkinci bölümde, artırılmış gerçeklik kavramı detaylıca incelenerek, artırılmış gerçeklik sistemlerinin kısa tarihçesi, donanım ve yazılım özellikleri incelenirken üçüncü bölümde dijitalleşmenin turizme olan etkisi, artırılmış gerçeklik ve turizm ilişkisi, turizm sektörüne yönelik yapılmış güncel artırılmış gerçeklik uygulamaları görsellerle desteklenerek aktarılmaya çalışılmıştır. Dördüncü bölüm, araştırma konusu olan artırılmış gerçeklik teknolojisi ile geliştirilen Porto şehri turistik rehber uygulamasını ve anket çalışmasını konu alırken, çalışmanın son kısım olan beşinci bölüm de elde edilen veriler doğrultusunda araştırmanın sonuçlarına yer verilmiştir.In recent years, a major transformation has been taking place in the tourism sector, as in every other sector, with the effect of digitalization. Augmented reality systems, which are the subject of the study, are another technological factor that is quite effective in this transformation. Augmented reality applications, which you are encountering at a museum you want to visit, or in a city where you plan to go as a tourist, have become a favourite of the tourism sector and a part of our lives. This study consists of five basic parts. In the first part of the study, the problem, purpose, importance, assumptions and limitations of the study are explained under the heading of technical details of the research. In the second part, the concept of augmented reality was examined in detail, the short history of augmented reality systems, hardware and software features were examined, and in the third part, the impact of digitalization on tourism, the relationship between augmented reality and tourism, current augmented reality applications made for the tourism sector were supported and tried to be conveyed with visuals. The fourth part is about the Porto city tourist guide application developed with augmented reality technology, which is the subject of the research, and the survey study, while the fifth part, which is the last part of the study, contains the results of the research in accordance with the data obtained

    Mimarlık ve Reklam İlişkisinin Kentsel Kimlik Üzerindeki Etkileri

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    Yaşam biçiminden, yaşam mekanlarına kadar her alanı etkisi altına alan tüketim kültürü ve beraberinde getirdiği reklam sektörü, içinde bulunduğumuz dönemde, etkileşim odaklı bir yaklaşım ile kapitalist sistemle başa çıkmak için yaratıcı disiplinlerden ilham alarak çeşitli mecraları kullanmaktadır. Tüketim nesnesi haline getirdiği birçok alanın yanı sıra mimarlığı da etkilemekte ve yeri geldiğinde araç olarak kullanmaktadır. Reklam ve mimarlık arasındaki ilişki, toplumun değişen ihtiyaçları ve teknolojik gelişmelerle birlikte tarihsel, kültürel ve teknolojik bağlamlarla şekillenerek farklı yöntem ve stratejilerde karşımıza çıkmaktadır. Bu bağlamda, bir şehrin geçmişiyle bugünü arasında köprü kurarak, kentsel kimliğin oluşmasını ve sürekliliğini sağlayan mimarlığın, reklam mecrası olarak kullanılma yöntemleri bu çalışma kapsamında sınıflandırılarak detaylı bir şekilde örneklerle incelenmiştir. Kentsel kimlik, kentte yaşayanların bağ ve aidiyet duygusu yaratmalarını sağlayan en önemli unsurlardan biridir. Bu sebeple, kentsel kimliğin korunması ve sürekliliği için reklam ve mimarlık ilişkisinin kentte yarattığı potansiyel olumsuz etkilerini bertaraf etmek konusunda farkındalık yaratmak amaçlanmıştır

    Hyper-Number Generalized Quaternions

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    The main aim of this paper is to introduce generalized quaternions with hyper-number coefficients. For this, firstly, a new number system is defined, which is the generalization of bicomplex numbers, hyper-double numbers and hyper-dual numbers. And any element of this generalization is called a hyper-number. Then, real matrix representation and vector representation of a hyper-number are given. Secondly, hyper-number generalized quaternions and their algebraic properties are introduced. For a hyper-number generalized quaternion, 4 x 4 real generalized quaternion matrix representation is presented. Next, because of lack of commutativity, for a hyper-number generalized quaternion, two different hyper-number matrix representations are calculated. Moreover, real matrix representations of a hyper-number generalized quaternion is expressed by matrix representation of a hyper-number. Finally, vector representations of a hyper-number generalized quaternion are given and properties of this representations are investigated

    Uremic pruritus and associated factors in chronic hemodialysis patients: past and current experience

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    Introduction: Uremic pruritus (UP) is a prevalent but overlooked problem in chronic kidney disease (CKD). This study aimed to investigate the prevalence of UP in chronic dialysis patients and its correlation with demographic, clinical, and biochemical parameters. Methods: The study included all patients >18 years of age who had undergone hemodialysis three days a week for at least six months and agreed to participate. Pregnant women and patients with a history of steroid use, malignancy, chronic liver or biliary tract disease, and dermatological disease were excluded from the study. Pruritus severity was evaluated using the Visual Analog Scale (VAS) and the 5-D Itch Scale. Results: Of 1093 patients, 582 (53.25%) were male, and 511 (46.75%) were female, with a mean age of 62.39 +/- 14.27 years. The results showed that 224 (20.5%) patients had UP, with a strong positive correlation between VAS and the 5-D Itch Scale in the pruritus group (r=0.883, p=0.0001). C-reactive protein (CRP) levels were significantly increased, and Kt/V and urea reduction rate (URR) levels significantly decreased in UP patients. In addition, we showed that hypertension, high CRP, and low URR were risk factors affecting UP (p: 0.037, p: 0.048, and p: 0.011, respectively). Grouping patients by pruritus severity as mild, moderate, and severe revealed no significant difference between the groups, except for the significantly lower mean age in the severe pruritus group (p=0.003). Conclusions: The correlation between UP and CRP supported the immune hypothesis in the pathogenesis of UP. Moreover, increasing the dialysis dose may be beneficial in mitigating UP symptoms, even in patients with normal Kt/V and URR levels

    Sağlık Çalışanlarında İş Tatmini ve Tükenmişlik İlişkisi: Meta-Analizi

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    Aim: The study aims to gather under a single roof a meta-analysis of the relationship between job satisfaction and burnout in healthcare workers, carried out in OECD countries, and to obtain a general result. Method: Unlike similar methodologies employed in assessing the correlation between job satisfaction and job performance in international literature, the study employed the meta-analysis technique in its methodology. For this aim, the literature was systematically reviewed, and 35 specific studies meeting the established criteria were included. The initial step involved uploading these studies into the Comprehensive Meta-Analysis V3 program and subsequently coding them for analysis. Before commencing the study analysis, the decision was made regarding the model for the effect size calculation, with preference given to the random effects model. Following this, the analysis encompassed effect size determination, examination of publication bias, and execution of subgroup analyses. Results: Considering the prominent findings of the study, a negative and significant relationship was found between job satisfaction and burnout. The individual studies included in the study do not have publication bias. There exists a statistically significant difference among countries concerning the correlation between job satisfaction and burnout. Conclusion: The structure and functioning of countries' health systems are unique and different. The effects of this situation are also reflected in the findings of the study. To increase the satisfaction of healthcare professionals, human resources strategies specific to the dynamics of each country should be determined and implemented, and the results should be monitored.Amaç: Çalışma, sağlık çalışanlarında iş tatmini ile tükenmişlik arasındaki ilişkinin OECD ülkelerinde gerçekleştirilen meta-analizini tek çatı altında toplayarak genel bir sonuç elde etmeyi amaçlamaktadır. Yöntem: Uluslararası literatürde yer alan, iş tatmini ile tükenmişlik arasındaki ilişkinin değerlendirilmesinde kullanılan metodolojilerden farklı olarak bu araştırmada meta-analiz tekniği kullanılmıştır. Bu amaçla literatür sistematik olarak taranarak belirlenen kriterleri karşılayan 35 spesifik çalışma araştırmaya dahil edilmiştir. İlk adım, bu çalışmaların kapsamlı Meta-Analiz V3 programına yüklenmesini ve ardından analiz için kodlanmasını içermektedir. Çalışma analizine başlamadan önce, etki büyüklüğü hesaplamasında kullanılacak modele karar verilmiş, ardından rastgele etkiler modeli tercih edilmiştir. Bunu takiben analiz, etki büyüklüğünün belirlenmesini, yayın yanlılığının incelenmesini ve alt grup analizlerinin yapılmasını kapsamaktadır. Bulgular: İş tatmini ile tükenmişlik arasında negatif ve anlamlı bir ilişki bulunmuştur. Araştırmaya dahil edilen bireysel çalışmalarda yayın yanlılığı bulunmamaktadır. Araştırmanın bir diğer önemli sonucu ise iş tatmini ile tükenmişlik arasındaki ilişki açısından ülkeler arasında istatistiksel olarak anlamlı bir farklılık olmasıdır. Sonuç: Ülkelerin sağlık sistemlerinin yapısı ve işleyişi kendine özgü ve farklıdır. Bu durumun etkileri çalışmanın bulgularına da yansımaktadır. Sağlık çalışanlarının memnuniyetini artırmak için her ülkenin dinamiklerine özel insan kaynakları stratejileri belirlenerek uygulanmalı ve sonuçları takip edilmelidir

    Commonly Used Laboratory Equipment

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    This chapter studies the most commonly used devices in the laboratory. Measurement devices that are used in different laboratories are made by different companies. Working with each device has its own details. © 2024, The Author(s), under exclusive license to Springer Nature Switzerland AG

    The Relationship of Attachment Styles, Perceived Social Support, and Anxiety and Depressive symptoms with Migraine-Related Disability

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    The objectives of the present study was to examine the attachment styles, perceived social support, and levels of depression and anxiety symptoms in patients with migraine and to determine the relationships of these variables with migraine disability. In total, 80 patients with episodic migraine (EM), 35 patients with chronic migraine (CM), and 50 healthy controls were included. All participants completed the Experiences in Close Relationships Inventory (ECRI), the Multidimensional Scale of Perceived Social Support (MSPSS), and the Hospital Anxiety and Depression Scale (HADS). In addition, patients with migraine completed the Migraine Disability Assessment (MIDAS) Questionnaire. A statistically significant difference was found between the EM and CM groups in terms of MIDAS scores. The Avoidance subscale mean scores in the EM and CM group were statistically significantly higher than the mean scores of the healthy control group. The MSPSS Total, Family and Friends subscale mean scores of the EM group and healthy control group were significantly higher than the mean scores of the CM group. MANOVA showed statistically significant differences between groups in terms of ECRI, MSPSS, and the HADS scores. Chronic migraine patients who have high levels of avoidant attachment, anxious attachment, and depression tend to experience greater migraine -related disability. In contrast, those with higher levels of perceived social support from friends and a larger social support network tend to experience less migraine -related disability. Family support is the key support system for predicting migraine -related disability. Prioritizing and improving perceived social support can minimize negative effects and prevent chronicity, making it a crucial aspect migraine treatment.Diana Gradinaru, Ticu Constantin, & Octav Sorin Candel PSYCHOMETRIC PROPERTIES OF THE ROMANIAN VERSION OF THE BORDERLINE PERSONALITY QUESTIONNAIRE INASAMPLE OF NONCLINICAL ADULTS Andela .o kiC, Manja Stublinaevie, & Oliver To koviC SEE NO ISOTROPY, HEAR NO ISOTROPY: PERCEIVED DISTANCE ANISOTROPY IN AUDITORY SPACE Navid Khalcghimoghaddam ANALYSIS OF THE BRAIN'S RESPONSES TO THE APPROACH-AVOIDANCE BEHAVIOR IN ARCHITECTURAL EXPERIENCE Emre Kdroglu, Rukiye Kdroglu, Kemal Sayar, Volkan Topcuoglu, & Tulin Tanndag THE RELATIONSHIP OF ATTACHMENT STYLES, PERCEIVED SOCIAL SUPPORT, AND ANXIETY AND DEPRESSIVE SYMPTOMS WITH MIGRAINE -RELATED DISABILITY Faruk 0buda, Orkun Aydin, Suleyrnan cakiroglu, & Pinar Onal-Aydin THE COMBINED ROLE OF METACOGNITION AND MINDFULNESS IN SOCIAL ANXIETY SYMPTOMS: A PATH MODEL Maja Lalic & Natalia Antonova PSYCHOLOGICAL FACTORS OF COVID-19 VACCINATION UPTAKE AMONG CITIZENS OF BOSNIA AND HERZEGOVINA: THE APPLICATION OF HEALTH BELIEF MOD

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