Ahmad Ebrahimzadeh

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In a large multicenter study involving six major study sites in the United States, Canada, and Europe, the susceptibilities of 272 Mycobacterium tuberculosis strains to classical second-line antituberculosis (anti-TB) drugs (capreomycin, cycloserine, ethionamide, and kanamycin) and newer compounds (amikacin, clofazimine, ofloxacin, and rifabutin) were(More)
We evaluated the BACTEC MGIT 960 system, which is a fully automated, noninvasive system for the growth and detection of mycobacteria with a capacity to incubate and continuously monitor 960 7-ml culture tubes. We studied 3,330 specimens, 2,210 respiratory and 1,120 nonrespiratory specimens, collected from 2,346 patients treated at six sites. Processed(More)
Spherical bodies resembling coccidian oocysts and measuring 8.0 to 9.0 microns in diameter were seen in the stools of eight persons with explosive, watery diarrhea. Seven had recently traveled to tropical countries, mostly in the Caribbean, and four had acquired immunodeficiency syndrome. The structures were easily discernible in wet mounts by light(More)
ABSTRACT: The current research focused on comparing the effects of different levels of heavy traces of cadmium and copper sulfate on seed germination and seedling development in two important range species namely A. elongatum and B. inermis. The seeds of mentioned species were strilled and put on Wattman paper for 8 days and treated with 10, 20 and 30 mg/l(More)
The insulin-like growth factor I gene is a candidate gene for growth and production rate of meat and milk. This gene is located on chromosome 5 in the cow. The IGF-I hormone is secreted by most of tissues, but it is mainly secreted from the liver and after releasing, it is transferred to other tissues. The IGF-I hormone plays a key role in various(More)
Das weibliche Geschlechtssystem der folgenden Arten der Gattung Polystomoides Ward (Monogenea) wurde untersucht: P. malayi Rohde, P. siebenrockiellae Rohde, P. asiaticus Rohde, P. renschi Rohde. Alle Arten besitzen einen Oocapt mit Schließzellen im terminalen Abschnitt des Ovars und einen ventilartig modifizierten Ovidukt, in dessen Lumen die Spermatozoen(More)
The glandular system of the cercariae of Schistosoma mansoni was studied by means of electronmicroscopy. We found that: 1. The structure of the secretory droplets of the postacetabular glands' fundus and their ducts is variable. 2. There is a difference in the kind of distribution of the granules in the secretory droplets of the postacetabular glands in the(More)
The evaluation of foodstuffs provides the animal nutritionists with necessary information to adjust the diet from a physiological and economic point of view, so that the animal performance be desirable. Nowadays, there are various methods for evaluating ruminant feed intake. One of the most important methods is in situ nylon bag technique. Prosopis farcta(More)
The body wall of the miracidium of S. mansoni has been studied by light and electron microscope. It has been found that the tegument layer contains so-called membrane-bound bodies. The tegument layer will be separated from muscle layer by means of a basal membrane. Special attention was focused on the associated structures of the tegument; these are cilia,(More)