Trichoscopy examination revealed the presence of few empty follicles, small broken hairs, black dots, and hair with uniform nodal dilatations with intermittent constrictions at which there was shaft breakage [Figure 2]. The hairs were of varying lengths; many were broken. Hairs with normal morphology were seen interspersed within this beaded hair. The beaded hair showed bending in different dir...

introduction: average glandular dose calculation in mammography with mo-rh target-filter and dose calculation for different situations is accurate and fast. material and methods: in this research, first of all, x-ray spectra of a mo target bombarded by a 28 kev electron beam with and without a rh filter were calculated using the mcnp code. then, we used the sobol-wu parameters to write a fortra...

background: breast is one of the main radiological sensitive organs, hence it is important to evaluate absorbed dose to this organ especially to the glandular parts. it is the aim of this study to measure mean glandular dose and image contrast in terms of different mammographic parameters. materials and methods: in this study two mammography machines located at said-al shohada (giotto) and shah...

Allogrooming is a normal behavior for socially bonded cats. Cat hairs may have epithelial cells on the shaft from at least two cat contributors, the host (groomee) and the donor (groomer). To determine the likelihood of obtaining a mixture or incorrect DNA profile in cat hairs, feline mtDNA control region from hairs of allogrooming cats was isolated and analyzed by direct sequencing. Two DNA ex...

In many legumes, including Lotus japonicus and Medicago truncatula, susceptible root hairs are the primary sites for the initial signal perception and physical contact between the host plant and the compatible nitrogen-fixing bacteria that leads to the initiation of root invasion and nodule organogenesis. However, diverse mechanisms of nodulation have been described in a variety of legume speci...