Morphology of the veins draining the heart was studied in the Van cat. Veins draining the heart were the great cardiac vein, the middle cardiac vein, the right cardiac veins and the smallest cardiac veins. No anastomosis was observed between the terminal branches of the paraconal interventricular vein and the subsinuosal interventricular vein. The coronary sinus was formed by the great cardiac vein and the middle cardiac vein. The origins of the right cardiac veins had significant variations. The right semicircumflex vein was observed in three (50%) cats, and it terminated at the middle cardiac vein.
Endüstriyel üretim sonucu oluşan atıkların geri kazanımı veya farklı sektörlerde kullanılmak suretiyle değerlendirilmesi doğal kaynakların korunması adına günümüz teknolojileri için önemli bir konu olmuştur. 2014 yılı verilerine göre Türkiye'de çelikhane cürufunun ancak %41'i geri dönüştürülmektedir. Geri kalan çelikhane cürufu bertaraf edilmekte veya düzensiz depolanmaktadır. Bu çalışmada çelikhane cürufunun yol üst yapısında temel ve alttemel malzemesi olarak kullanılabilirliği değerlendirilmiştir. Çalışma kapsamında kontrol kesiti olarak kırmataş temel ve kırmataş alttemelden oluşan yol kesiti analiz edilmiştir. Çelikhane cürufu ise temel ve alttemelde olmak üzere birlikte ve ayrı ayrı kullanılmıştır. Toplam dört farklı yol kesitinin 400 kPa yük altında, 20.111 tekrarlı yükleme yapılarak iki boyutlu sonlu elemanlar metodu ile aksisimetrik analizleri gerçekleştirilmiştir. Cüruf dinamik kayma modülünü elde etmek için rezonant kolon deneyleri gerçekleştirilmiştir. Analizler sonucu yol temel ve alttemel tabakalarında çelikhane cürufunun doğal agrega yerine kullanılabileceği belirlenmiştir. Cürufun alttemelde kullanıldığı KC kesiti ise düşey deformasyonlar açısından en iyi sonucu vermiştir.
In the study, total segment, grey matter and white matter volume values of lumbosacral segment of spinal cord in quails (Coturnix coturnix japonica) were stereologically examined. Regardless of sex, six adult quails were used as material. After the materials were perfused, they were dissected and their spinal cords were uncovered. Tissue samples were taken from each lumbosacral segment of spinal cord. After the tissue fixation process, 6–7 sections having a 5‐µm thickness were separated in every 50th section as from the first section, where the tissue was seen, among tissue samples of each segment. These segments were stained with haematoxylin–eosin staining. They were photographed via a microscope. By using the Cavalieri's principle, the volume values of both the total segment, grey matter (GM) and white matter (WM) in each lumbosacral segment were separately calculated. All these calculations were performed by using SHTEREOM 1.5 program. As a result, total volume, grey matter and white matter volume values of lumbosacral segments and white matter/total volume, grey matter/total volume, and grey matter/white matter volume fractions were obtained.
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