abstract background: aloe vera (aloe barbadensis miller) is an evergreen perennial plant widely used in modern herbal practice and is often available in proprietary herbal preparations. objective: this study was designed to investigate the semen picture and spermatozoa morphology of west african dwarf (wad) bucks treated with aloe vera extract. materials and methods: twelve sexually matured wad...

in present study, two species of hyphomycetes fungi including, cephaliophora tropica (in soil), and monascus pilosus (on corn silage) are reported for the first time to iranian mycobiota. descriptions of these species have been provided with morphological characteristics and its rdna sequence analyses.in present study, two species of hyphomycetes fungi including, cephaliophora tropica (in soil)...

four tylenchid species, namely, aglenchus agricola, malenchus exiguus, psilenchus curcumerus, and p. terextremus are reported from iran. the iranian population of a. agricola is characterized by 542-659 µm long body, 10-12 µm long stylet, excretory pore at 70-87 µm distance from anterior end, prominent lateral fields, with four lines, tail of 170-198 long, and rare males with 15-20 µm long spic...

We propose a method called analytical morphology for data ltering. The method was created on the basis of some ideas of rough set theory and mathematical morphology. Mathematical morphology makes an essential use of geometric structure of objects while the aim of our method is to provide tools for data ltering when there is no directly available geometric structure in the data set.

This paper discusses the use of recursive neighbourhoods in mathematical morphology. Its two notable applications are the recursive erosion/dilation, as well as the detection of foreground–background changes to be used in skeletonization. The benefit of the latter over the use of sub-cycles or an extension of the neighbourhood is emphasized. Two applications are presented that use the recursive...

background: cytotoxic therapy can lead to prolonged azoospermia or even sterility. in the present study, we investigated the morphological changes of mouse testes after gamma-radiation. methods: after anaesthetizing of nmri mice, testes and their surrounding tissues were irradiated using a cobalt therapy machine. four experimental groups were irradiated with fractionated doses of: 1.5+8, 1.5+12...

dental arch form is one of the most important characteristics of dentition. however, this dimension usually receives less attention in diagnosis or treatment planning and orthodontic patients are traditionally classified with regard to their sagittal characteristics. the objectives of this study were to investigate if a relationship exists between the dental arch width (transverse dimension) an...

acute lymphoblastic leukemia (all) is a malignant disorder of lymphoid precursor cells, which could be classified according to morphological and cytochemical methods as well as immunophenotyping. twenty patients with all, who had been referred to the children's medical center hospital, during the year 2007, were enrolled in this study in order to evaluate the morphologic and immunophenotypic pr...

the objective was to quantify and compare cow cervical morphology on oestrus vs. non-oestrus daysusing a new farm technology. the cervical tissues were videotaped using a cervixscope involving newcamera equipment in four holstein cows on multiple oestrus and non-oestrus days to score tissue morphology as altered by oestrus. the non-oestrous days were in diestrus phases. the videotaped records w...