Worldwide and especially in less developed regions, process-based evaluations and/or geomorphological information on large-scale rivers are still scarce. Such investigation become of ?urgent ?need due to the climate change expected occurrence extreme floods drought which ?may ?threaten safety nearby downstream cities, regions that highly sensitive ?affected by climatic changes. The Tigris River...

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This paper describes some morphological aspects of Cylicocyclus brevicapsulatus (Ihle, 1920) (Nematoda: Cyathostominae) from Equus caballus in Brazil. The worms were studied using an optical microscope (measurements and illustrations) and a scanning electron microscope for a more detailed examination of the external morphology. The buccal capsule is very short, with a very thin wall, and the do...

PURPOSE To evaluate tympanic bulla healing after experimental lateral osteotomy in cats. METHODS Twenty adult cats were submitted to unilateral lateral bulla osteotomy and divided into two groups: cats of B1 group (n=10) were euthanized at 8 weeks and cats of B2 group (n=10), at 16 weeks postoperative. RESULTS Oblique lateral radiographs taken immediately postoperative showed interruption i...

Primordial germ cells (PGCs) are germline stem cells that give rise to gametes in vertebrates. They originate outside the embryo very early in development and migrate by a well-defined route into the genital ridges. During early embryogenesis in mammals, the PGCs are observed in an extra-embryonic region near the yolk sac, translocate to the endodermal epithelium of the hindgut as embryogenesis...

Large granular lymphocytes (LGLs) differ from other lymphocytes in their recirculation pattern and are distributed preferentially in nonlymphoid organs such as the liver and lung. The liver-associated LGLs adhere strongly to the sinusoidal endothelium and show a natural killer (NK) cytotoxicity against incoming metastatic tumor cells; this reaction occurs very rapidly because, in contrast to th...

Skeletal muscle has multiple functions and is a key component of the locomotor system. It consists of carbohydrates and amino acids for different tissues such as skin, heart and brain. It contributes to the maintenance of blood glucose levels during periods of starvation. Skeletal muscle health is particularly important for the prevention of various diseases. This review discusses various aspec...

The Apical Ectodermal Ridge (AER) is one of the main signaling centers during limb development. It controls outgrowth and patterning in the proximo-distal axis. In the last few years a considerable amount of new data regarding the cellular and molecular mechanisms underlying AER function and structure has been obtained. In this review, we describe and discuss current knowledge of the regulatory...

The structures made of myocardium running most often above the coronary arteries are called the muscle bridges. However there is a large number of descriptions of that phenomenon, the data are not homogenous. Some papers affirm the occurrence of the clinical implications of their existence. The studied material contained 100 adult human hearts, both sexes, 21 to 76 years of age, preserved in fo...