introduction: to evaluate and compare efficiency of sil-select with percoll to recover sperm with normal chromatin in morphology and also studyeffect of these parameters on fertilization, embryo quality and cleavagescore. materials and methods: assessment of semen parameters, protamine deficiency (cma3) and excessive histone (aniline blue staining) were carried out before and after sperm proces...

Abstract Background Some COVID-19 patients with similar quantitative CT measurements had variable clinical presentation and outcome. The absence of reasonable explanations, such as pre-existing comorbidities or vascular complications, adds to the confusion. authors believed that neglecting impact certain severe morphologic features could be an alternative radiological explanation. This study ai...

background: hyalomma anatolicum is the well-known hard tick, which is one of the most important livestock and hu­man pathogens vector, wide range in host and distributed in all over the hyalomma geographic fauna as well as in iran. taxonomy of the hyalomma ssp. is debatable whereas their identification is a problematic work. the reasons for this claim is time consuming delpy’s researches in ira...

Imaging is key to nearly all aspects of chronic thromboembolic pulmonary hypertension including management for screening, assessing eligibility endarterectomy, and post-operative follow-up. While ventilation/perfusion scintigraphy, the gold standard technique can have excellent sensitivity, it be confounded by other etiologies malperfusion, does not provide structural information guide operabil...