the expanding phenomenon of dieback is caused by the reaction of trees against the harmful biotic and a biotic factor that lead to dying of shoots and branches of trees from upper crown to lower crown. this phenomenon spreads throughout the leaves and branches and all parts of the plant and may finally lead to the death of the plant. this study aimed to identify species dieback especially carpi...

acinic cell carcinoma arising in salivary glands is a rare tumor, accounting for 2% to 5% of the primary neoplasms of the parotid gland. when these tumors are well-differentiated, the neoplasia has innocuous aspect, due to the similarity to normal parotid tissue. this makes the diagnosis difficult. initially the malignancy of this tumor was uncertain; however, recent studies have declared it as...

objective: to study plants purification capability of  cu on two cultivars of vetch plant (vigna radiata) in contaminated soils and their effects on morphological characteristics. methods: we conducted a completely randomized trial as factorial. different concentrations of  cu (0, 150, 300, and 400 mg/ kg of dried soil) were used. after four weeks growth on contaminated soil, parameters such as...

Follicular helper T-cell (TFH) lymphomas comprise a unique group of that represent neoplastic proliferations follicular T-cells and share genetic, immunophenotypic, morphologic, clinical features. Angioimmunoblastic lymphoma (AITL) is the prototypical TFH lymphoma; in addition, 2017 revised World Health Organization (WHO) 4th edition recognizes two other subtypes: (FTCL) nodal peripheral with T...

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...

results long-term exposure to lead acetate caused histopathology effects including dilatation, congestion, nuclei heterochromatic effects, increase in diameter of renal tubules and urinary barrier thickness in rabbit renal tissue. conclusions quantitative and qualitative results of long-term lead acetate exposure showed many histopathology side-effects, especially in the urinary barrier. materi...

The problem of morphologic variation in pneumococcus has been reviewed and the desirability of studying such variation through an examination of bacterial cells rather than of bacterial colonies has been pointed out. To further this objective, a new terminology to describe the morphologic variants of pneumococcus, potentially applicable to other bacterial species, has been proposed. A hitherto ...