نتایج جستجو برای: glandular and non
تعداد نتایج: 17007504 فیلتر نتایج به سال:
Background: Average glandular dose (AGD), entrance skin air kerma (ESAK) and normalized glandular dose (DgN) are the main dosimetric quantities in mammography. Breast tissue composition is one of the factors affecting on DgN values. In this study both homogeneous and heterogeneous breast tissue is assumed and its impact on DgN values are evaluated. Methods: Homogeneous breast phantom with diffe...
Trichome Micromorphology of Egyptian Ballota (lamiaceae) with Emphasis on Its Systematic Implication
Trichomes of 5 taxa of the genus Ballota were examined by using light and scanning electron microscopy. The indumentum shows considerable variability among different species, and therefore, affords valuable characters in delimitation of species. The characters of taxonomic interest were presence of glandular and non-glandular trichomes, number of cells (uni-, bi-, trior multi-cellular), presenc...
introduction: to write a computational program to calculate the average glandular dose in mammography with rh-rh target-filter and also use it as an accurate and fast method of dose calculation founder different situations. materials and methods: in this research, the sobol-wu parameters are used to write a fortran code for glandular dose calculation in rh-rh target-filter mammograms. the code ...
This paper presents an analysis of the morphological and anatomical characteristics aboveground parts (herba) clary sage (Salvia sclarea L.), with emphasis on investigation its surface structures. After procedure primary processing drying plant material, it was determined that composition crushed herbal drug Salviae sclareae herba showed presence leaves, bracts, flowers axis inflorescence, stem...
Introduction: Aspartame is one of the synthetic sweeteners widely used in the food industry as a sugar substitute in recent decades. The present study aimed to investigate the effect of different doses of aspartame on histological and histomorphometric changes in the stomach in BALB/C mice. Material & Methods: In this study, 24 BALB/C mice aged three weeks were selected and divided into thre...
Background: Accurate computation of the radiation dose to the breast is essential to mammography. Various the thicknesses of breast, the composition of the breast tissue and other variables affect the optimal breast dose. Furthermore, the glandular fraction, which refers to the composition of the breasts, as partitioned between radiation-sensitive glandular tissue and the adipose tissue, also h...
this is an original study on the effect of a polyisobutylene – polydimethylsiloxane (pibpdms) block copolymer modifier used as an interfacial active agent on the dynamics behaviour of single newtonian drops suspended in a polyisobutylene (pib) newtonian matrix. the results were divided in two sections. the first part included the experiments carried out on the non-modified and 2% block cop...
فرض کنیمg یک گروه غیر آبلی متناهی باشد . گراف جابجایی g که با نماد نمایش داده می شود ،گرافی است ساده با مجموعه رئوس که در آن دو راس با یک یال به هم وصل می شوند اگر و تنها اگر . مکمل گراف جابجایی g راگراف نا جابجایی g می نامیم.و با نماد نشان می دهیم. گرافهای جابجایی و ناجابجایی یک گروه متناهی ،اولین بار توسطاردوش1 مطرح گردید ،ولی در سالهای اخیر به طور مفصل در مورد بحث و بررسی قرار گرفتند . در ،م...
Trichomes are widely distributed on surfaces of different organs in the grape genus Vitis and are of taxonomic utility. To explore the morphology, structure and ontogeny of Vitis trichomes, we investigated the diversity and distribution of trichomes in 34 species of Vitis. Two main types of trichomes in Vitis are documented: non-glandular and glandular. Within non-glandular trichomes, ribbon an...
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