Kırıkkale University Institutional Repository
Not a member yet
21089 research outputs found
Sort by
Determination of Subtypes, Serogroups, And Serotypes, Virulence, and/ or Toxigenic Properties of Escherichia coli Isolated From Cattle, Sheep, and Goat Feces by Multiplex PCR
No full textIn the study, rectal swabs taken from 300 ruminant animals including cattle (100), sheep (100), and goats (100) were inoculated into Mac Conkey Agar and incubated for 18 h at 37degree celsius. Escherichia coli isolates were confirmed by biochemical tests and the BBL Crystal rapid diagnosis system. O26, O45, O103, O111, O121, O145, and O157 serotypes by PCR test following DNA isolation; ETEC (elt, Stla); EPEC (eaeA,bfpA); STEC (stx1, stx2, eaeA); EHEC (EhlyA); EAEC (CVD432) tested for virulence and/or toxigenic genes. As a result of the isolation studies, 50 E. coli from cattle feces, 92 from sheep feces, and 80 from goat feces were isolated and identified. Apart from the first 5 serotypes frequently seen in studies (O157, O26, O103, O111, and O145), higher rates were found in serogroups such as O45 and O121, and subtypes such as STECs (stx1 and stx2), EPEC (eaeA and bfpA) and EAEC (CVD432) types compared to other studies. The EAEC (CVD432) subtype was found to be very high in this study. It has been determined that serotypes and subtypes detected at high rates in cattle, sheep, and goat feces in our region may cause an increase in the incidence of some critical food-borne infections in humans. Within the framework of the concept of one health, taking the necessary precautions is important for public health
Investigation of the relationship between digital game addiction and prosocial behaviors in adolescents
No full textSağlık Bilimleri Enstitüsü, Çocuk Gelişimi Ana Bilim DalıBu araştırmada ergenlerin dijital oyun bağımlılığı ile prososyal davranışları arasındaki ilişkinin incelenmesi amaçlanmıştır. Çalışma grubunu, Diyarbakır İl Milli Eğitim Müdürlüğü'ne bağlı basit tesadüfi örnekleme yoluyla belirlenen 7 resmi lise türünde öğrenim gören 810 öğrenci oluşturmuştur. Araştırmada veri toplama aracı olarak "Kişisel Bilgi Formu", dijital oyun bağımlılığının belirlenmesi için geçerlik ve güvenirlik çalışması, Irmak ve Erdoğan (2015) tarafından yapılan "Dijital Oyun Bağımlılığı Ölçeği" ile ergenlerin prososyal davranış durumlarını belirlemek için geçerlik ve güvenirlik çalışması, Ata ve Artan (2021) tarafından yapılmış "Ergen Prososyallik Ölçeği" kullanılmıştır. Araştırma verileri t testi, ANOVA Testi, Pearson Korelasyon Katsayısı kullanılarak analiz edilmiştir. Araştırma sonucunda; ergenlerin dijital oyun bağımlılıklarının ortalamanın altında olduğu ve ergen prososyallik puanlarının ortalamanın üzerinde olduğu belirlenmiştir. Cinsiyet değişkenine göre erkek ergenlerin, Fen Lisesi ve Sosyal Bilimler Lisesi'ne devam edenlerin, bir kardeşe sahip olanların ve babaları emekli olanların dijital oyun bağımlılığı puanlarının yüksek; okur-yazar olmayan anneye sahip ergenlerin ise dijital oyun bağımlılıklarının daha düşük olduğu saptanmıştır. Prososyal davranışlar açısından ise, Anadolu Lisesi ve İmam Hatip Lisesi'ne devam edenlerin, kız ergenler ile babası serbest meslek sahibi ve memur olanların prososyal davranış puan ortalamalarının diğer gruplara göre daha yüksek olduğu; ayrıca ergenlerin dijital oyun bağımlılıkları arttıkça prososyal davranış gösterme eğilimlerinin azaldığı, ergenlerin dijital oyun bağımlılığı ile prososyal davranışları arasında negatif yönde düşük düzeyde bir ilişkinin olduğu belirlenmiştir. Anahtar Kelimeler: Dijital oyun bağımlılığı, prososyal davranış, ergenThe aim of this study is to investigate the relationship between digital game addiction and prosocial behaviors in adolescents. The study group consisted of 810 students studying in 7 types of official high schools determined by simple random sampling under the Diyarbakır Provincial Directorate of National Education. In the study, "Personal Information Form", "Digital Game Addiction Scale" whose validity and reliability study was conducted by Irmak and Erdoğan (2015) to determine digital game addiction, and "Adolescent Prosociality Scale" whose validity and reliability study was conducted by Ata and Artan (2021) to determine adolescents' prosocial behavior statuses were used as data collection tools. The research data were analyzed using t-test, ANOVA Test, and Pearson Correlation Coefficient. As a result of the research, it was determined that adolescents' digital game addiction was below average and their prosociality scores were above average. According to the gender variable, it was found that male adolescents, those attending Science High School and Social Sciences High School, those with one sibling, and those whose fathers were retired had high digital game addiction scores; while adolescents whose mothers were illiterate had lower digital game addiction. In terms of prosocial behaviors, it was found that those attending Anatolian High School and Imam Hatip High School, female adolescents, and those whose fathers were self-employed or civil servants had higher average prosocial behavior scores compared to other groups; additionally, it was determined that as adolescents' digital game addiction increased, their tendency to display prosocial behavior decreased, and there was a low-level negative relationship between adolescents' digital game addiction and prosocial behaviors. Key words: Digital game addiction, prosocial behavior, adolescen
Surfaces of Osculating Circles in Euclidean Space
No full textThe aim of this paper is to define a new class of surfaces in Euclidean space using the concept of osculating circle. Given a regular curve C, the surface of osculating circles generated by C is the set of all osculating circles at all points of C. It is proved that these surfaces contain a one-parametric family of planar lines of curvature. A classification of surfaces of osculating circles is given in the family of canal surfaces, Weingarten surfaces, surfaces with constant Gauss curvature and surfaces with constant mean curvature.Projects I+D+i [PID2020-117868GB-I00, A-FQM-139-UGR18, P18-FR-4049]The authors thank to the referees for their comments and suggestions, which have notably improved the presentation of this paper. Rafael L ' opez is a member of the Institute of Mathematics of the University of Granada. This work has been partially supported by the Projects I+D+i PID2020-117868GB-I00, A-FQM-139-UGR18 and P18-FR-4049
Investigation of the presence and clinical significance of microplastics in patients in the attack and stable period of chronic obstructive lung disease
No full textTıp Fakültesi, Göğüs Hastalıkları Ana Bilim DalıGiriş: Mikroplastiklerin sindirim yoluyla alınarak proinflamatuvar sonuçlara yol açtığı biliniyor. Ancak inhalasyon yoluyla vücutta varlıkları ve etkileri bilinmemektedir. Bu çalışmada kronik obstrüktif akciğer hastalığı (KOAH) üzerine mikroplastiklerin rolünü incelemeyi amaçladık. Metot: Çalışma için Kırıkkale Üniversitesi Tıp Fakültesi (KÜTF) Klinik Araştırmalar Etik Kurulu'ndan (11/03-03.03.2023) ve KÜ Bilimsel Araştırmalar Proje Desteği (2023/158-21.09.2023) destek alınmıştır. KÜTF Göğüs Hastalıklarına başvuran KOAH ve KOAH'sız kontrol grubunun demografik özellikleri geçmişte yapılmış son laboratuvar ve solunum fonksiyon testi değerleri kaydedildi. Çalışmaya katılan tüm olgulardan cam tüplere balgam örneği alındı. Alınan balgam numuneleri sindirim reaksiyonu tamamlandığında, numuneler filtre kağıdı üzerine distile su ile yıkandı ve süzüldü. Tanımlama işlemi Leica kamera bağlantılı Stereomikroskop altında sayım işlemiyle yapıldı. Verilerin istatistiksel analizi SPSS 27.0 paket programı ile yapılmıştır. Sonuçlar: Çalışmaya KOAHatak (n: 33), KOAHstabil (n:35) ve kontrol grubu (n: 32) alındı. Olguların yaş ortalamaları kontrol (63,53 yıl) Kontrol > KOAHatak idi. Serum kreatinin ortalamaları KOAHstabil grubunda yüksek iken (p=0.043), serum c-reaktif protein (CRP) değerleri KOAHatak grubunda diğerlerinden daha yüksek idi (p Control > COPDattack, respectively. Serum creatinine was higher in the COPDstable group (p=0.043), while serum c-reactive protein (CRP) values were higher in the COPDattack group than in the others (p<0.001). Arterial blood gas parameters taken in room air were similar between the groups. FEV1 (lt and %), FVC (lt), % FEV1/FVC were similar in the COPDattack and stable groups and statistically significantly lower than the control group (all p<0.001). FEF25-75 (lt) was as COPDstable < COPDattack < Control, respectively (p<0.001). There was no statistically significant difference between the respiratory test parameters in the pairwise comparison between the COPDattack and COPDstable groups. In subgroup analysis, gender, residence, education level and smoking did not affect the microplastic level in sputum, while it was found to be higher in those receiving LTOT and those exposed to biyoyakıt (p=0.006 and p=0.021). The highest microplastic level in sputum was detected in COPDattack (1.53±0.63 units/ml) < COPDstable (0.60±0.47 units/ml) < control group (0.36±024 units/ml) (p=<0.001). Microplastic level in COPD patients in the attack period was higher than COPDstable patients and the control group (p=<0.001). Microplastic levels were higher in COPDstable patients compared to the control group (p=0.036). Risk factors for COPD exacerbation were examined by multiple regression analysis. Considering age, gender, and smoking, sputum microplastic level, blood neutrophil/lymphocyte ratio, and blood eosinophil elevation were found to be significant risk factors for COPD exacerbation. Discussion: This study showed the presence of microplastics in sputum samples of COPD patients and healthy controls. The most important finding we obtained within the scope of the study was that microplastic levels were clearly higher in COPDattack patients than COPDstable and control group. Microplastic exposure may be a new risk factor for COPD disease and COPD exacerbations. In order to understand the risk further studies are needed. Keywords: Exacerbation, COPD, microplastic, risk facto
Dependencies of Parameter and Load Toque Sensitivities of Electric Motor Outputs on Design Requirements
No full textSensitivity analysis is useful for parameter estimation and decision-making processes. It guides researchers in which input is more effective for controlling an output and which output provides more information to estimate a system parameter. This study is concerned with the sensitivities of the measurable states of electric motors to the model parameters and load torque. Its contribution is investigating the sensitivities’ dependencies on design requirements. It has been revealed that some design requirements such as rated voltage, power, and speed have no effect on most sensitivities to the motor parameters. A similar study on transformers is also included with similar results. The results evoke some optimization choices about adjusting the sensitivities since the search space dimension is reduced. They also yield some educational benefits. Since such a theoretical study requires precise measurements or disturbance-free information, experimental work could not be very useful. Therefore, either mathematical model analysis or simulations have been used to calculate the sensitivities. For the same reason, design requirements are considered from the algorithms determining the model parameters of electric machinery according to desired operating conditions for simulation purposes. Dependencies have been found analytically for dc motors but numerically for ac motors, and transformers.Sensitivity analysis is useful for parameter estimation and decision-making processes. It guides researchers in which input is more effective for controlling an output and which output provides more information to estimate a system parameter. This study is concerned with the sensitivities of the measurable states of electric motors to the model parameters and load torque. Its contribution is investigating the sensitivities’ dependencies on design requirements. It has been revealed that some design requirements such as rated voltage, power, and speed have no effect on most sensitivities to the motor parameters. A similar study on transformers is also included with similar results. The results evoke some optimization choices about adjusting the sensitivities since the search space dimension is reduced. They also yield some educational benefits. Since such a theoretical study requires precise measurements or disturbance-free information, experimental work could not be very useful. Therefore, either mathematical model analysis or simulations have been used to calculate the sensitivities. For the same reason, design requirements are considered from the algorithms determining the model parameters of electric machinery according to desired operating conditions for simulation purposes. Dependencies have been found analytically for dc motors but numerically for ac motors, and transformers
YAYLI ÇALGILARIN GRUP KAYITLARINDA KULLANILAN TEKNİKLER
No full textIn this study, the recording techniques for string instruments such as violin, viola, and cello in a group setting have been examined. The introduction section discusses the impact of developing technology on music production and the art of music. Following this, the history of sound recording is explored, with a focus on the techniques used in the 19th century. The study emphasizes how this journey has evolved up to the present day. In the findings section, live observations were made of group string instrument recordings conducted in three different studios. In the first studio, there are five violinists, while the second and third studios each have four violinists. Each of the three studios also includes one violist and one cellist. It was observed that different recording techniques and microphone placements were employed in each of the three studios. The precautions that should be taken when using both close and distant miking techniques simultaneously are discussed. The impact of XY miking techniques on group string instrument recordings is highlighted. Techniques used in recordings conducted in different rooms are also examined. As a result, it was found that the number of group members and the number of microphones used influenced the recording techniques. Large-diaphragm condenser microphones were preferred. It is noted that the stereo positioning that will be applied during the mixing stage actually begins during the recording process. Additionally, it is stated that time-based processors (reverb and delay), which are preferred during the mixing stage, are also used during recording, whereas dynamic and frequency-based processors should not be used during the recording phase. © 2024, Tolga Karaca. All rights reserved
The clinical and radiologic evaluation of dental disease in cats
No full textSağlık Bilimleri Enstitüsü, Cerrahi Ana Bilim DalıKedilerde diş hastalıklarıyla sıklıkla karşılaşılmaktadır. Başlıca karşılan diş hastalıklarından bazıları diş rezorpsiyonu, periodontal hastalık, kırık diş, kayıp diş, persiste süt diştir. Diş hastalıklarının tanısında detaylı bir klinik ve radyolojik muayene gereklidir. Sunulan çalışmaya Kırıkkale Üniversitesi Veteriner Fakültesi Hayvan Hastanesi Cerrahi Anabilim Dalı Kliniği'ne farklı şikayetler ile getirilen; ırk, yaş, cinsiyet ayrımı yapılmaksızın 50 kedi dahil edildi. Verilerin toplanması ve işlenmesi için dental muayene formu oluşturuldu. Klinik ve radyolojik muayene sonucunda 50 kedinin 44'ünde ve toplamda 125 adet dişte hastalık saptandı. Kanin dişlerde 31, insisiv dişlerde 22, premolardişlerde 50 ve molar dişlerde 22 olgu tespit edildi. Kanin dişlerde en çok persiste süt diş; insisiv, premolar ve molar dişlerde ise kayıp diş olgusu görüldü. En çok karşılaşılan durum 16 olgu ile periodontal hastalık olarak gözlenirken, bunu 14 olgu ile diş rezorpsiyonunun takip ettiği belirlendi. Çalışmaya dahil edilen kedilerin %88'inde en az bir hastalık saptanırken hasta sahiplerinin hiçbirinin evde ağız ve diş sağlığı için bakım uygulamadığı hatta neredeyse hiç bilgi sahibi olmadığı görüldü. Bir kedinin ağız ve diş sağlığının yerinde olmaması şiddetli ağrılara sebep olmakta ve hayat kalitesini ciddi anlamda düşürmektedir. Anahtar Kelimeler: Kedi, Diş hastalıkları, RadyolojiDental diseases in cats are encountered frequently. Some of the most common diseases include tooth resorption, periodontal disease, broken tooth, missing tooth and persistent primary teeth. In diagnosis of dental diseases a detailed clinical and radiological examination is crucial. For the submitted study, 50 cats that were brought with various complaints to Kırıkkale University Veterinary Faculty Animal Hospital Clinic of the Department of Surgery were included regardless of the breed, age, or gender. In order to collect and process the data, a dental examination form was created. As a result of the clinical and radiological examination, diseases were detected in 44 out of 50 cats and on a total of 125 teeth. 31 cases were detected in canine teeth, 22 cases in incisive teeth, 50 cases in premolardis teeth and 22 cases in molar teeth. In canine teeth, the most common cases were persistent primary teeth: Whereas in incisive, premolar and molar teeth, it was the lost teeth. While the most common condition was periodontal disease with 16 cases, it was determined to be followed by tooth resorption with 14 cases.While at least one disease was detected in 88% of the cats included in the study, it was observed that none of the animal owners applied any dental care to their pets at home and almost had no knowledge on the matter. If a cat's oral and dental health is not in good shape, it causes severe pain and significantly reduces their quality of life
Comparison of Lung Function and Respiratory Muscle Strength in Geriatric Individuals with and without Metabolic Syndrome
No full textEuropean-Respiratory-Society Congress (ERS) -- SEP 07-11, 2024 -- Vienna, AUSTRIA[Abstract No tAvailable]European Respirat So
Comprehensive analysis of a CI engine fuelled with blends of diesel fuel/ safflower seed oil biodiesel/ TiO2 or SiO2 nanoparticles produced by green synthesis technique
No full textIt can be confidently stated that there is limited research on the usability of nanoparticles as alternative fuel additives for diesel fuel (DF), particularly those produced from organic substances through the green synthesis method. On this basis, the present research focused on the usability of the fuels formed by adding metal-based titanium dioxide (TiO2) and silicon dioxide (SiO2) nanoparticles produced through green synthesis technique at different ratios to safflower oil biodiesel and commercial DF blends considering the thermodynamic, economic, and environmental analyses. In this sense, performance and emission tests were carried out in a single-cylinder diesel engine at four ranging loads (25 %, 50 %, 75 %, and 100 %) at a fixed speed of 1500 rpm. To conclude, the exergy efficiency enhanced as the load increased. Actually, for B10Si50 blend at 25 %, 50 %, 75 %, and 100 % loads, the exergy efficiency was calculated to be 16.46 %, 19.48 %, 21.08 %, and 21.95 %, respectively. As the amount of biodiesel infused to DF increased, the cost of losses went up gradually. In this context, the cost of losses for DF was calculated as 2.099 USD/h at the maximum engine load, meanwhile the cost of losses for B10 and B20 was figured out to be 2.326 USD/h and 2.487 USD/h, respectively. At the peak load, the ratio of the power taken from the engine shaft to the cost achieved for DF was 129.76 USD/GJ, while it was found to be 151.55 USD/GJ for B20. In addition, it was determined as 191.21 USD/GJ for B20Si250 fuel and 197.97 USD/GJ for B20Ti250. As stated in the exergoenviroeconomic analysis findings, the cost of monthly CO2 emissions ascended as the amount of nanoparticles augmented regardless of the type of fuel blends. At 75 % engine load, the cost of CO2 emissions for B20Si50 fuel was notified as 43.89 USD/month whereas it was found to be 47.74 USD/month for B20Si250.Scientific and Technological Research Council of Turkiye (TUBITAK) [122M850]The present study received support from projects numbered 122M850, funded by The Scientific and Technological Research Council of Turkiye (TUBITAK)
The Effect of Combining Blood Flow Restriction with the Nordic Hamstring Exercise on Hamstring Strength: Randomized Controlled Trial
No full text(1) Background: It is a matter of curiosity what effect the blood flow restriction (BFR) method, which is usually combined with low-intensity resistance exercises, will have when used with high-intensity eccentric exercises. (2) Methods: The present study examined the effects of combining BFR with nordic hamstring exercises (NHEs) on hamstring muscle strength, bilateral deficit (BLD), and training volume. Thirty young female volleyball players, who trained three times a week, participated voluntarily in the study. These players were stratified into three groups, each comprising ten individuals: a control group (CG), an NHE group, and an NHE + BFR group. Hamstring muscle strength and BLD values were determined using an H-BORD device, while training volume was measured in terms of sets and repetitions. (3) Results: Statistical analysis revealed that there were no statistically significant differences in non-dominant and dominant leg peak torque parameters in the exercise groups (F = 2.65; p = 0.097; eta p2 = 0.17; F = 1.15; p = 0.0334; eta p2 = 0.084), while the total training volume was lower in the NHE + BFR group. (4) Conclusions: As a result, it was seen that adding the BFR method to NHE did not provide additional gains. However, due to the low training volume of BFR + NHE, it may be recommended to apply BFR together with NHE to athlete groups.Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia [PNURSP2024R 286]We would like to sincerely express our appreciation to Princess Nourah bint Abdulrahman University Researchers Supporting Project number (PNURSP2024R 286), Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia for supporting this project. We thank all the volunteers and participants involved in the present study