Publications

Investigation of Seismic Gap Distance on Adjacent Seismic Isolated Structures

This study is aimed to determine the ideal seismic gap distance that should be between the structures to prevent collisions with each other as a result of the displacements of two adjacent base-isolated structures under different earthquake effects. A total of three adjacent building models were created by adding structures with reduced mass and increased mass with the same characteristics of a base-isolation system. In that case, the uncertainty of variable loading of the structures is considered. The dynamic analyses of three different adjacent structures were carried out for two different periods of base isolation system and under different earthquake records. As a result of the analysis, the displacements and accelerations of the three adjacent structures were determined. The seismic gap distances between structures at different periods for the base isolation and with different masses were compared. It has been found that the maximum seismic gap distance among adjacent structures is between the structure with increased massed structure and the main structure. Also, it is high when the period for the base isolation is high.

BİR TIP FAKÜLTESİ ÖĞRENCİLERİNİN VE BELEDİYE ÇALIŞANLARININ ZOONOZLARLA İLGİLİ BİLGİ, TUTUM VE DAVRANIŞLARI

Giriş ve Amaç: Omurgalı hayvanlardan insanlara, insanlardan da hayvanlara geçen zoonotik hastalıklar halk sağlığını tehdit ederler ve sağlık hizmeti çalışanlarında mesleki risk oluşturmaktadırlar. Hekim adaylarının ve hayvan sağlığı alanında çalışanların zoonotik hastalıklarla ilgili doğru bilgi, tutum ve davranışlara sahip olması gerekmektedir. Bu araştırmanın amacı; bir Tıp Fakültesi 5 ve 6. Sınıf öğrencilerinin ve bir belediye çalışanlarının zoonozlarla ilgili bilgi, tutum ve davranışlarının saptanmasıdır. Gereç ve Yöntem: Bu çalışma, 01.10.2018 ve 31.07.2019 tarihleri arasında yürütülmüş tanımlayıcı bir araştırmadır. Araştırmanın evrenini bir Tıp Fakültesi 5 ve 6. Sınıf öğrencileri ve bir belediyenin[1] veteriner işleri çalışanları oluşturmaktadır. Öğrenciler 1000 kişi ve belediye çalışanları 437 kişidir. Bu evrenden örnek belirlemek için OpenEpi programı kullanılmış, %95 güven aralığında, ±%5 hata ile çalışmanın gücü %80, iki grup arasındaki bilgi düzeyi farkı % 15 olacağı varsayılarak, 271 öğrenci ve 136 belediye çalışanı ile görüşülmesi hedeflenmiştir. Anketler gözlem altında yanıtlama yöntemi ile uygulanmıştır. Çalışma için Klinik Araştırmalar Etik Kurul İzni alınmıştır. Bulgular: Beşinci sınıf öğrencilerinin %35i, altıncı sınıf öğrencilerinin %35,4ü, belediye çalışanlarının %23,1i hayvanlarla riskli temas öyküsü olduğunu bildirdi. Beşinci sınıf öğrencilerinin %99,3ü, altıncı sınıf öğrencilerinin tamamı, belediye çalışanlarının %92,6sı hayvanlardan insanlara hastalık bulaşabileceğini bilirken, beşinci sınıf öğrencilerinin %77,7si, altıncı sınıf öğrencilerinin %81,9u, belediye çalışanlarının %26,5i insanlardan hayvanlara hastalık bulaşabileceğini biliyordu. Beşinci sınıfların %21,3ü, altıncı sınıfların %21,5i, belediye çalışanlarının %40,9u o güne kadar kuduz aşısı yaptırmıştı; beşinci sınıfların %77,5i, altıncı sınıfların %82,5i, belediye çalışanlarının %23,8i tüberküloz aşısı yaptırdığını; beşinci sınıfların %91,3ü, altıncı sınıfların %78,5i, belediye çalışanlarının %86sı tetanoz aşısı yaptırdığını; beşinci sınıfların %3,6sı, altıncı sınıfların %3,5i, Belediye çalışanlarının %3,1i sarı humma aşısı yaptırdıklarını bildirdi. Beşinci sınıfların %12,2sinin, altıncı sınıfların %15,3ünün, belediye çalışanlarının %8,1inin çevresinde zoonoz geçiren olmuştu. Beşinci sınıf öğrencilerinin %87,1i, altıncı sınıf öğrencilerinin %85,5i, belediye çalışanlarının % 55,5i zoonotik hastalıklarla mücadele için evcil hayvanların yok edilmesini doğru bulmazken, sırasıyla yaban hayvanlarla evcil hayvanların ilişkisinin kesilmesinin zoonotik hastalıklarla mücadelede etkili olduğunu bildirenler %79, %91,7 ve %67,2 idi. Mesleki uygulamada karşılaştıkları zoonozlar bruselloz, şarbon, tüberküloz, toksoplazmoz, kuduz şüphesi, kuş gribi ve Kırım Kongo kanamalı ateşi idi. Sonuç ve Öneriler: Zoonozlar konusunda araştırma grubu bilgi düzeyleri %25-%99 arasındadır; hem öğrenci grubunun, hem de belediye çalışanlarının bu konuda eğitime ihtiyaçları vardır.

Attıtudes of Female Employees In Nutrıtıon of 9 Months-6 Years Old Chıldren In Covıd-19

Background: We aimed to determine the factors affecting the nutritional attitudes of female hospital workers toward their children between 9 months and 6 years of age during the COVID-19 pandemic.Methods: Our study, which is an original article, was conducted with female employees working in the hospital and having children between the ages of 9 months and 6 years. The impact of changes in work and home life during COVID-19 on changes in child care and child nutrition has been questioned. Result: Statistical significance was detected between the scale and questions such as the frequency of anxiety regarding the child's illness during the COVID-19 process, the decrease in the child's appetite, changes in the child's eating pattern, the mother's relationship with the environment and social relations, and the child's sleep pattern. Conclusion: A significant relationship was found between inadequate/unbalanced nutrition and educational status and between the reaction to others' opinions sub-dimension and age groups. Moreover, another significant relationship was found between the frequency of anxiety about the child's illness and the scale, and between the change in the child's nutrition pattern and the scale. The COVID-19 pandemic affected the attitudes of female employees towards the nutrition of their children.

Comparison of tracheal, bronchus, and lung cancer mortality after occupational cadmium exposure in china and the world

Aim: Cadmium is a heavy metal pollutant that is a human carcinogen. Exposure occurs primarily through ingestion and inhalation. Materials and Methods: In our study, we examined the mortality rates, Disability Adjusted Life Years (DALYs) and population-attributable fraction (%) due to cadmium exposure in China and the world for the years 2000, 2010 and 2016 using the World Health Organization (WHO) occupational disease burden application tool. Results: In China, the mortality rate (per 100,000 of population) due to occupational cadmium exposure due to bronchus, trachea and lung cancer has not decreased over the years, and the mortality rate due to exposure is still high. According to the latest 2016 data, although the death rate (per 100,000 of population) in China (.4269) is higher than the world (.2002) average; the death rate (per 100,000 of population) was determined to be similar to Europe (.4650), but lower than the death rates in Africa (44.9514), Americas (30.0927), Eastern Mediterranean (12.5471), South-East Pacific (14.4381) and Western Pacific (201.1176) regions (p<.05). As a result of the comparisons made, it is seen that the number (for DALYs in 1000s) due to cadmium exposure has increased over the years (2000: 3.82, 2010: 4.95, 2016: 5.55). It was determined that the number (for DALYs in 1000s) showed significant differences over the years (p<.05). Mortality rates (per 100,000 of population) have been decreasing over the years (2000: 79.7906, 2010: 49.3388, 2016: 41.4298) (p<.05). Conclusion: Morbidity and mortality rates due to cadmium exposure remain high due to rapidly increasing industrialization.

Introduction to Data Analysis and Machine Learning Applications in Civil Engineering

Determination of Ozone-induced mortality in Aydın province, Turkey in 2022 using AIRQ+ Modeling

Fuels for energy production and road traffic are the main causes of air pollution. According to 2020 data from the World Health Organization (WHO), the number of deaths from air pollution is 6.7 million per year. Ozone has harmful effects if it is above the limit value. Our aim is to investigate the effect of ozone on mortality when it exceeds the limit value at ground level. In our study, we used data from Aydın province, which has the highest average ground-level ozone level in Turkey. From the Air Quality Monitoring website of the Ministry of Environment and Urbanization, we collected data from 4 stations in Aydın province and divided by the number of stations to obtain the average ground-level O3 value. We used the World Health Organization AIRQ+ 2.2 program to calculate ozone-related mortality. Ministry of Environment, Urbanization and Climate Change Air Quality Monitoring website, we calculated the average O3 value as 64.73 μg/m³ between 01.03.2022-30.08.2022, which is the 6 months with the highest amount of O3 at ground level in Aydın province. According to the results obtained in the AIRQ+ program, the estimated attributable mortality rate was 0.47% (CI 95%, RR: 0-0.93), the estimated number of deaths from attributable cases was 22 (CI 95%, RR: 0-44) and the estimated number of deaths from attributable cases per 100000 population at risk was 1.92 (CI 95%, RR: 0-3.80). The long-term effect of ground-level ozone appears to be undeniable in increasing the number of deaths.

A Review of Optimization of Structural Control Systems

Structures are exposed to dynamic loads such as ground motions. Structures exposed to ground motion may be subjected to deformation if they do not have control systems. Control systems are used in structures to minimize these deformations. These control systems consist of types such as active, passive, semi-active, and hybrid. The application of these control systems varies depending on the type of structure and the ground motion to which it will be exposed. Since many variables are effective in the design of control systems, it is necessary to optimize these systems. Thanks to metaheuristic-based optimization, the best solution can be obtained under an objective function, as long as certain constraints are provided. In this study, optimization studies for active, passive, semi-active, and hybrid control systems are reviewed.