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Derin grenme Tabanli Video Kodlama i in Kalite Degerlendirmesi
No full textIsik University33rd IEEE Conference on Signal Processing and Communications Applications, SIU 2025-- -- Istanbul; Isik University Sile Campus -- 211450In this study, the H.265/HEVC video codec and the deep learning-based video codec called LHBDC (Learned Hierarchical Bi-Directional Video Compression) were compared on 1080p videos selectively encoded at certain values. During the comparison process, both objective metrics and subjective evaluations were used. By combining the results of objective metrics with the subjective perceptions of users, the advantages and disadvantages of the deep learning-based approach compared to the traditional method were analyzed. The findings showed that LHBDC has the potential to deliver higher quality, especially in high-motion scenes or low bit rates. © 2025 Elsevier B.V., All rights reserved
Transgenerational effects of peppermint essential oil on life table parameters and antioxidant enzymes in Callosobruchus maculatus
No full textCowpea weevil (Callosobruchus maculatus) causes critical losses by affecting the quantity and quality of stored cowpea grains. The aim of this study was (a) to analyze peppermint (Mentha piperita) essential oil (EO) chemical constituents, (b) to explore its effects on the female and male adults, (c) to investigate whether exposure of parental generation (F0) influences life table parameters and antioxidant enzyme activities in subsequent generations (F-1 and F-2). GC-MS analysis identified 52 volatile compounds in the peppermint EO, with isopulegol (26.613%), L-menthone (20.284%), cis-menthone (8.528%), eucalyptol (5.855%), camphene (5.754%), camphor (4.882%), and D-carvone (3.984%) as major constituents. The EO exhibited vigorous adulticidal activity, with males more susceptible (LC50 = 1.894 ppm) than females (LC50 = 3.349 ppm). Sublethal EO exposure significantly reduced fecundity and affected key life table parameters (GRR, R0, r, and lambda). Notably, LC10 in F-1 and LC30 in F-2 generations resulted in decreased GRR, R-0, and r, while lambda increased. Enzyme assays revealed substantial modulation of glutathione S-transferase (GST), catalase (CAT), and superoxide dismutase (SOD) activity, particularly at LC30 and in the F2 generation, indicating a possible oxidative stress response mechanism. These findings indicate that sublethal EO exposure can induce immediate and transgenerational physiological stress in C. maculatus, supporting the potential of peppermint EO as a botanical insecticide in sustainable pest management
Premature Deaths and Socio-economic Status: The Role of Fine Particulate Matter in Türkiye (2019)
No full textOBJECTIVE: Air pollution, particularly particulate matter (PM), is a leading environmental risk factor contributing to global morbidity and premature mortality. The World Health Organization's (WHO) AirQ+(c) software is a vital tool for assessing the health impacts of air pollution. Our study used this software to estimate premature deaths attributable to long-term particulate matter (PM2.5) exposure in T & uuml;rkiye in 2019 and explored its relationship with each province's socio-economic status. MATERIAL AND METHODS: We conducted an ecological study using annual average PM2.5 levels from air quality stations. Due to limited PM2.5 measurements (only 16% of stations), we derived PM2.5 values from PM10 data using WHO's conversion coefficient for T & uuml;rkiye. RESULTS: We identified the provinces with the highest PM2.5 concentrations and associated mortality: I & gbreve;d & imath;r, & Scedil;& imath;rnak, & Ccedil;orum, D & uuml;zce, and Kahramanmara & scedil;had the highest concentrations, while Erzurum, & Ccedil;orum, I & gbreve;d & imath;r, Sinop, and K & uuml;tahya had the highest mortality rates per 100,000 population. No significant correlation was found between premature deaths and the socio-economic development index of each province. Our study estimated 37,768 premature deaths attributed to long-term PM2.5 exposure in adequately monitored provinces. CONCLUSION: In 2019, T & uuml;rkiye faced persistent air pollution, with PM2.5 levels exceeding WHO's 2021 limits across all provinces and stations. T & uuml;rkiye lacks specific PM2.5 limits legislation. Our findings provide a fresh insight into the literature, highlighting policy reform needs. However, data deficiencies hindered analysis in some provinces, affecting nearly 20% of the population aged 30 and above and 31% of the total surface area. Therefore, the actual burden of air pollution-related deaths may be higher than our estimates, underscoring the need to address these challenges urgently
Charge transfer and surface morphology analysis of heteroatom-doped activated carbon for dye-sensitized solar cells
No full textThis study explores the feasibility of heteroatom-doped activated carbon (Ac) as a low-cost substitute for platinum (Pt) counter electrode (CE) in dye-sensitized solar cells (DSSCs). Ac was doped with nitrogen (N), sulfur (S), and phosphorus (P), both individually and in combination (S-N-P), to examine their effects on Ac structure, electrochemical behavior, and DSSC performance. Scanning electron microscopy (SEM) demonstrated notable micromorphological changes due to doping, influencing porous structure and surface uniformity. While undoped Ac exhibited a rough and irregular microstructure, N-doping reduced surface roughness and irregularity, leading to a more ordered porous structure. However, it also increased charge transfer resistance due to the formation of larger pores, ultimately resulting in lower efficiency. P-doping introduced structural disorder, further elevating charge transfer resistance and shortening electron lifetime, resulting in the lowest DSSC power conversion efficiency (PCE) of 0.9 %. In contrast, S-doping produced a more compact structure with enhanced electrocatalytic activity, improving PCE (3.2 %). The best performance was observed in S-N-P co-doped Ac, which achieved a PCE of 5.0 %, approaching that of Pt (6.6 %), due to reduced charge transfer resistance (R1 = 6.5 Omega). Electrochemical impedance spectroscopy (EIS) confirmed that lower charge transfer resistance correlates with higher DSSC performance. Raman and XPS analyses further supported this result by confirming balanced defect density and rich surface functionalization in the S-N-P co-doped Ac. The research demonstrates the potential of multiheteroatom doping of Ac for developing scalable, sustainable, and environmentally friendly alternatives to platinum for DSSC applications.Scientific and Technological Research Council of Turkiye (TUBITAK) [123M029]; Yozgat Bozok University's Research Fund [6602b-KAE/21-482]; Presidency of Turkish Republic Department of Strategy and Budget [16DPT002]The authors are thankful for the financial supports provided by The Scientific and Technological Research Council of Turkiye (TUBITAK) (Grant No: 123M029), and Yozgat Bozok University's Research Fund (Grant No: 6602b-KAE/21-482). We thank the Presidency of Turkish Republic Department of Strategy and Budget (Grant No: 16DPT002) for their contributions to the infrastructure studies for solar cell production and characterization
Wound Management Practices in Scrotal-Confined Fournier’s Gangrene
No full textObjective: To compare real-world outcomes of different wound care strategies following surgical debridement in scrotal-confined Fournier Gangrene (FG), without inferring causality. Study Design: Observational study. Place and Duration of the Study: Department of Urology, Aydin Adnan Menderes University, and Ege University, Izmir, Turkiye, from August 2013 to October 2023. Methodology: Eighty-six patients with scrotal-confined FG were included. They were divided into three postoperative wound care groups: Group 1 used gauze impregnated with rifampicin and nitrofurantoin, Group 2 used rivanol-impregnated gauze, and Group 3 used vacuum-assisted closure (VAC). Data on demographics, microbial profiles, antibiotic use, and clinical outcomes (including hospital stay) were recorded. Group comparisons were performed using one-way ANOVA, Kruskal–Wallis, or Chi-square tests as appropriate. Results: The patients’ age ranged from 26 to 96 years (mean 63.9 years). The most common single morbidity was diabetes (29.1%). Predominant pathogens were polymicrobial (24.4%) and E. coli (23.3%) in isolation. Overall mortality was 5.8%. Median hospital stays were 9 days (range: 5–28) in Group 1, compared to 14 days (6-40) and 15 days (6-31) in Groups 2 and 3, respectively (p <0.001), with Group 1 being significantly shorter. Secondary debridement rates were similar across groups: 12.5% in Group 1, 37.5% in Group 2, 50% in Group 3 (p = 0.32). Antibiotic choices differed significantly among the groups (p <0.001). Notably, the triple combination regimen of daptomycin, tigecycline, and meropenem was not used in Group 1. Conclusion: Topical antibiotic dressing using mesh dressings impregnated with rifampicin and nitrofurantoin was associated with a shorter hospitalisation compared to rivanol and VAC therapy in scrotal-confined FG. These findings suggest that rifampicin and nitrofurantoin-based topical therapy may be viable alternatives in resource-limited settings, or where VAC is unavailable. © 2025 Elsevier B.V., All rights reserved
BAŞLANGICIN, YAŞAMIN VE SONUN KUTSAL MADDESİ TOPRAK: TÜRK DOĞUM RİTÜELLERİ
No full textİnsan, doğumundan itibaren pek çok aşamadan geçmekte ve geçilen aşamalardan sonra başka bir bilince ulaşmaktadır. İnsanın geçirmiş olduğu aşamaların en başında doğum olayı gelmektedir. Evlenme, ölüm gibi geçiş dönemlerinin başlangıcı olan doğum; aynı zamanda bir eşik meselesidir. İnsanın bir durumdan bir başka duruma geçişini ifade eden eşik, öncesinde muğlaklığın korunduğu, geçiş sonrası ise muğlaklığın yerini yeni bir kimlik, bilinç ve statüye bıraktığı bir süreci ifade eder. Bu noktada doğum da içinde pek çok eşiği barındıran, bireyi ve toplumu etkileyen, etkilenen birey ve toplumun korunması için çeşitli uygulamalara başvurulan bir ritüele dönüşür. Doğum ritüelleri, toplumu yakından ilgilendirse de daha çok anne ve bebek etrafında kümelenir. Ritüellerde hem annenin hem de bebeğin sağlıklı ve korunaklı bir biçimde süreci tamamlaması tasarlanır. Anne ve bebeğin her türlü zararlı etkilere açık olduğuna inanıldığından uygulanan dinsel büyüsel temelli ritüellerin daha çok koruma ve sağaltım işlevinde olduğu görülür. Doğum öncesinde başlayan ritüeller doğum sonrasındaki kırk günlük sürece kadar yoğun biçimde sürdürülür. Bu yönüyle hayatın başlangıcını temsil eden, aileyi, toplumu ilgilendiren doğum; inanç sisteminin, geleneğin, kültürün çevrelediği bir bakış açısı ile korunup kutsanır. Başlangıcın yaratılan ilk maddesi olan, doğuran, canlılık, hayat veren, besleyen, büyüten ve nihayetinde verdiği hayatı geri alan, tanrısal kutu üzerinde taşıdığına inanılan toprak da doğum ritüellerinde eşik kavramının önemli bir bileşeni olarak Türk kültür ve inanç sisteminde yerini almaktadır. Geçiş dönemlerinin ilki olan doğumda toprak, yaşam verici olma özelliği sebebiyle doğumla ve doğum yapan kadın ile ilişkilendirilmekte, ritüellerde sıkça kullanılmaktadır. Kullanım alanı, doğumun fikir aşamasından başlayıp çocuğun doğumu ve hatta sonrasına kadar genişlemektedir. Bu bakış açısıyla hazırlanan çalışma, Türk doğum ritüellerinde doğum öncesi, doğum sırası ve doğum sonrası yapılan uygulamalarda toprağın yerini, kullanım şekli ve işlevini ortaya koymayı amaçlamaktadır. Maddi ve manevi özellikleri göz önüne alınarak ritüellere dâhil edilen toprağın da daha çok koruma, sağaltım, temizlik gibi amaçlarla kullanıldığı tespit edilmişti
Fizyoterapi Rehabilitasyon ve Ebelik bölümü lisans öğrencilerinin pelvik taban sağlığı bilgi ve farkındalık düzeylerinin karşılaştırılması
Get PDFAmaç: Bu çalışmanın amacı Fizyoterapi ve Rehabilitasyon bölümü ile Ebelik bölümünde okuyan lisans öğrencilerinin pelvik taban sağlığı hakkında bilgi düzeylerini ve farkındalıklarını değerlendirmek ve karşılaştırmaktır. Yöntem: Kesitsel çalışmamıza, Ege Üniversitesi Sağlık Bilimleri Fakültesi, Fizyoterapi ve Rahabilitasyon (FTR) bölümü ile Ebelik bölümünde 2., 3., ve 4. sınıfta lisans eğitimi gören 418 öğrenci dahil edildi. Dâhil edilme kriterlerine göre uygun toplam 393 öğrenci ile çalışma tamamlandı. Öğrencilere araştırmacı tarafından hazırlanan Demografik Veri ve Değerlendirme Formu ile Pelvik Taban Sağlığı Bilgi Testi (PTSBT) yüz yüze uygulandı. Katılmıcı verileri "IBM SPSS Statistics Version 25" paket programı ile analiz edildi. İstatiksel anlamlılık düzeyi p<0.05 olarak kabul edildi. Bulgular: Çalışmaya katılan 393 öğrencinin 169'u FTR bölümü, 224'ü ise Ebelik bölümü öğrencileri idi. Öğrencilerin yaş ortalamaları FTR bölümünde 22,06 ± 1,38; Ebelik bölümünde 22,08 ± 1,93 idi. PTSBT fonksiyon/disfonksiyon ve tanı/tedavi alt parametrelerine ait puan ve toplam puanlarının ortalamaları; Fizyoterapi ve Rehabilitasyon bölümü öğrencilerinin Ebelik bölümü öğrencilerine kıyasla daha yüksek bulunmuştur (p<0.05). FTR öğrencileri arasında sınıf düzeyine göre yapılan karşılaştırmalarda, 4. sınıf öğrencilerinin puanlarının diğer sınıf düzeylerine göre anlamlı olduğu saptanmıştır (p<0.05). Ebelik bölümü öğrencileri arasında ise, özellikle 3. ve 4. sınıf düzeyinde bazı bilgi alanlarında daha yüksek doğru yanıt oranları gözlemlenmiştir. Pelvik taban sağlığına ilişkin bilgi düzeyinde genel olarak FTR öğrencilerinin fonksiyonlar ve eğitim faydaları gibi konularda daha yüksek doğruluk oranlarına sahip olduğu belirlenmiştir (p<0.05). Sonuç: Fizyoterapi ve Rehabilitasyon bölümü öğrencilerinin pelvik taban sağlığına ilişkin bilgi düzeylerinin Ebelik bölümü öğrencilerine kıyasla genel olarak daha yüksek olduğu saptanmıştır. Sınıf düzeyi ilerledikçe bilgi düzeyinde artış gözlemlenmesi, eğitim sürecinin bilgi kazanımı üzerindeki olumlu etkisini desteklemektedir. Bu bulgular, lisans düzeyinde pelvik taban sağlığına yönelik eğitimin yapılandırılmasında bölüm ve sınıf düzeyine özgü farklılıkların dikkate alınmasının önemini vurgulamaktadır.Objective: The aim of this study is to evaluate and compare the knowledge level and awareness regarding pelvic floor health among undergraduate students in the Departments of Physiotherapy and Rehabilitation and Midwifery. Methods: This cross-sectional study included 418 students from the 2nd, 3rd, and 4th years of the Departments of Physiotherapy and Rehabilitation and Midwifery at Ege University Faculty of Health Sciences. The study was completed with a total of 393 students who met the inclusion criteria. A Demographic Data and Assessment Form and the Pelvic Floor Health Knowledge Test, developed by the researcher, were administered to the participants through face-to-face surveys. Participant data were analyzed using the "IBM SPSS Statistics Version 25" package program. Statistical significance level was accepted as p<0.05. Results: The total scores and the sub-parameter scores of function/dysfunction and diagnosis/treatment in the Pelvic Floor Health Knowledge Test were found to be significantly higher in Physiotherapy and Rehabilitation students compared to Midwifery students (p<0.05). In the comparisons made among FTR students according to the grade level, it was determined that the scores of the 4th grade students were significant compared to the other grade levels (p<0.05). In the Midwifery department, 3rd- and 4th-year students showed higher correct response rates in certain knowledge areas. Overall, Physiotherapy students demonstrated higher accuracy rates particularly in items related to pelvic floor function and the benefits of pelvic floor training (p<0.05). Conclusion: Physiotherapy and Rehabilitation students were found to have a generally higher level of knowledge regarding pelvic floor health compared to Midwifery students. The observed increase in knowledge with advancing academic years supports the positive impact of education on knowledge acquisition. These findings highlight the importance of considering department- and class-specific differences when structuring undergraduate education on pelvic floor health
Foreign trade hysteresis: An empirical essay Turkish case
No full textThe permanent effects of temporary shocks in exchange rates on foreign trade flows are defined as hysteresis. In this study, hysteresis is analyzed on the basis of exchange rate and import relationship. Empirical findings point to the validity of hysteresis in the Turkish economy. Sunk costs are the main dynamics of hysteresis in the Turkish economy. As a matter of fact, hysteresis effects caused by sunk costs are determinant in the sustainability of the current account deficit
Bi-Allelic Variants in MICU1 Cause Myopathy With Extrapyramidal Signs: Case Series, Phenotypic Spectrum, and Genotype–Phenotype Correlations From 61 Patients
No full textMyopathy with extrapyramidal signs (MPXPS) is a rare, autosomal-recessive, multisystem disorder caused by biallelic loss-of-function (LOF) variants in MICU1, the calcium-sensing gatekeeper of the mitochondrial calcium uniporter. We clinically and genetically characterized seven affected individuals from six Iranian-Turkish consanguineous families and combined these data with 54 previously published cases (total of 62). The targeted neuromuscular assessment, along with muscle biopsy and exome sequencing, identified six pathogenic MICU1 variants, including c.355C>T; p.Arg119*, c.493 + 1G>A, c.508C>T; p.Gln170*, c.547C>T; p.Gln183*, c.1226C>G; p.Ser409*, and c.553C>T; p.Arg185*. Notably, we report one adult-onset patient whose symptoms began at age 29 and progressed more rapidly than those in childhood-onset cases. A separate pedigree contained monozygotic twins who exhibited an indistinguishable clinical course, emphasizing the consistency of the genotype-driven phenotype. Across the combined cohort, the mean age at onset was 5.9 ± 7.3 years (median = 3 years); 61.5% presented before age 5, while 9.5% manifested after 15 years. Deep phenotyping of 61 patients from different ethnic backgrounds revealed that common symptoms included learning difficulties (72%), myopathy (51%), and speech impairments (51%). Functional studies targeting MCU modulation may provide future therapeutic options. © 2025 Elsevier B.V., All rights reserved
Tarımda Drone Kullanımının Potansiyel Faydaları
No full textIt can be said that it has been proved by field researches that effective and efficient work results are achieved with drones both in the world and in our country in areas such as field monitoring, crop yield monitoring of large agricultural farms, insurance claim verification, tracking of pest insects and animals, spraying and planting crops. In parallel with these developments, it is becoming increasingly important for producers to grow more efficient and healthier products with decreasing resources and increasing costs. The use of advanced technology, which is one of the cornerstones of smart and precision agriculture, is increasing its effectiveness in the agricultural sector every day. This study aims to highlight the current benefits and future potential of drones in agriculture.Drone'larla hem dünyada hem de ülkemizde tarla izleme, büyük tarım çiftliklerinin mahsul verim takibi, sigorta hasar doğrulaması, zararlı böcek ve hayvanların takibi, ilaçlama ve ekin dikimi gibi alanlarda etkin ve verimli çalışma sonuçları elde edildiği saha araştırmaları ile de kanıtlanmıştır. Bu gelişmelere paralel olarak azalan kaynaklar ve artan maliyetlerle daha verimli ve daha sağlıklı ürünler yetiştirmek üreticiler için giderek önem kazanmıştır. Akıllı ve hassas tarımın temel taşlarından biri olan ileri teknoloji kullanımı, tarım sektöründeki etkinliğini her geçen gün arttırmaktadır. Bu çalışma, drone'ların tarımdaki faydalarını ve gelecekteki potansiyelini vurgulamayı amaçlamaktadır