1,071 research outputs found

    Characterization of the Temporomandibular Joint of Southern Sea Otters (Enhydra lutris nereis).

    Get PDF
    The structure-function relationship of the temporomandibular joint (TMJ) of southern sea otter has largely not been described. This study aims to describe the histological, biochemical, and biomechanical features of the TMJ disk in the southern sea otter. The TMJ disks from fresh cadaver heads of southern sea otter adult males (n = 8) and females (n = 8) acquired from strandings were examined. Following macroscopical evaluation, the TMJs were investigated for their histological, mechanical, and biochemical properties. We found that the sea otter TMJ disks are, in general, similar to other carnivores. Macroscopically, the TMJ disk was highly congruent, and the mandibular head was encased tightly by the mandibular fossa with a thin disk separating the joint into two compartments. Histologically, the articular surfaces were lined with dense fibrous connective tissue that gradually transitioned into one to two cell thick layer of hyaline-like cartilage. The disk fibers were aligned primarily in the rostrocaudal direction and had occasional lacuna with chondrocyte-like cells. The disk was composed primarily of collagen type 1. Biochemical analysis indicates sulfated glycosaminoglycan content lower than other mammals, but significantly higher in male sea otters than female sea otters. Finally, mechanical analysis demonstrated a disk that was not only stronger and stiffer in the rostrocaudal direction than the mediolateral direction but also significantly stronger and stiffer in females than males. We conclude that the congruent design of the TMJ, thin disk, biochemical content, and mechanical properties all reflect a structure-function relationship within the TMJ disk that is likely designed for the sea otter's hard diet and continuous food intake

    Implementasi Algoritma C4.5 Untuk Menentukan Calon Debitur Dengan Mengukur Tingkat Risiko Kredit Pada Bank Bri Cabang Curup

    Full text link
    Perbankan adalah salah satu sumber dana bagi masyarakat perorangan atau badan USAha untuk memenuhi kebutuhan konsumsinya seperti kebutuhan untuk membeli rumah, mobil atau motor ataupun untuk meningkatkan produksi USAhanya mengingat modal yang dimiliki Perusahaaan ataupun perorangan tidak cukup untuk mendukung peningkatan USAhanya. Risiko perkreditan yang terutama bagi bank adalah bahwa kredit menjadi macet dalam arti bank tidak lagi atau tidak teratur dalam menerima bunga dan angsuran pelunasan kredit. Hal tersebut sangat merugikan pihak bank karena tidak lagi menerima bunga. Algoritma C4.5 bisa digunakan untuk analisa yang dilakukan oleh analis kredit. Penerapan algoritma dalam aplikasi ini bertujuan untuk membuat suatu sistem pendukung keputusan yang dapat memberikan suatu alternatif keputusan bagi para pengambil keputusan dalam menentukan tingkat risiko pemberian kredit

    The effect of red lentil hydroalcoholic extract on retention and retrieval of memory in young and aged mice

    Get PDF
    Background: Since ancient times, people have believed that certain foods or plants can affect learning and memory potency in humans. The consumption of food and beverages rich in flavonoid compounds has been proposed as a way to restrict the neurodegeneration associated with many neurological complications and to reverse or prevent deterioration in cognitive performance. Objectives: In the present study, we have attempted to show the effect of red lentil extract (RLE), an edible legume with a high quantity of flavonoid, on retrieval and retention of memory in young and aged animals with the use of a passive avoidance apparatus. Materials and Methods: For the experiments, after coding, the animals (128 total) were weighted and classified into different groups as follows: Group 1 as a control received only electric shock, while group 2 as a blank received electric shock plus normal saline (1 mL/100 g). The test groups (groups 3 and 4) received electric shock plus 400 and 800 mg/kg ip. RLE, respectively. The delay in leaving the platform of avoidance apparatus was measured for both retrieval and retention tests of memory in all groups, whereas experiments were conducted on two age levels - young and aged mice. In the test of retention after getting electric shock, RLE immediately, whereas in the test of retrieval 23.5 hours after the shock was administered. Results: Our findings demonstrated where applying both400mg/kg and 800 mg/kg of RLE significantly increased (the latency time increased about 2- and 3-fold respectively in comparison with the control group) retention and retrieval (at least 7-fold compared to the control group) of the memory of young (P < 0.05) and aged (P < 0.01) mice. Conclusions: It can be concluded that the devisable memory-enhancing effects of red lentil (lens culinaris) are due to the antioxidant activity of its flavonoid, tannins, and terpenoids. © 2016, School of Pharmacy, Ahvaz Jundishapur University of Medical Sciences
    corecore