Glass wool, hydrophilic cotton wool, non-electrically charged BIO-GEL P2 and common tissue paper columns were used to purify trypomastigotes from a mixed Trypanosoma cruzi population grown in axenic culture medium. With all these columns, highly purified (up to 98%) trypomastigote preparations were obtained. Trypomastigote yields from cotton wool, BIO-GEL P2 and common tissue paper columns were...

The history of silk in the Near East begins in Syria in the Roman period, with cloth and yarn of the Han dynasty imported from China. Some of the cloth may well have been the delicate Chinese gauze, because during the first two centuries A.D. Roman writers were scandalized by its transparency, saying that the wearers were clothed only to be unclothed. Other types, damasks and embroidered silks,...

This study investigated the effects of Spirulina (Arthrospira plantensis) supplementation level, basal diet, sire breed, and sex on wool quality parameters in purebred and crossbred Merino lambs. A total of 48 lambs, over two consecutive years (n=24 per year), was randomly allocated into Spirulina supplementation level (CONTROL, LOW, MEDIUM, HIGH) groups and balanced by sire breed (Black Suffol...

Yarn hairiness has been an important indication of yarn quality that affects weaving production and fabric appearance. In addition to many dedicated instruments, various image analysis systems have been adopted to measure yarn hairiness for potential values of high accuracy and low cost. However, there is a common problem in acquiring yarn images; that is, hairy fibers protruding beyond the dep...

We developed a novel technique enabling determination of the permeability of electrospun yarns composed of hundreds of fibers. Analyzing the wicking kinetics in a yarn-in-a-tube composite conduit, it was found that the kinetic is very specific. The liquid was pulled by the capillary pressure associated with the meniscus in the tube while the main resistance comes from the yarn. Therefore, one c...

Sheep from 4 Merino flocks, different in annual clean fleece production when grazed together, were given several nutritional treatments to compare the relationships of wool sulphur with nutrient intake, and with wool growth and plasma cystine. The sheep were selected from a finewool (Fl), a strong wool (S), and 2 medium-Peppin (MP6 and MPlO) flocks. The nutritional treatments varied intakes of ...

BACKGROUND Wool quality is one of the most important economic traits in sheep. The wool fiber is derived from specialized skin cells that are referred to as wool follicles. To understand the roles of microRNAs (miRNAs) in wool fiber growth, we detected the expression patterns of miRNAs in wool follicles at the anagen, catagen, and telogen stages from Tibetan sheep through Solexa sequencing. R...

in the view of quran, the standee mountains holding the layers of earth start to move and getting the anxious and exploded and even turn to dust. at the beginning of the doomsday in the researched verses they are simile to tufts of yarn. god in the many verses announced of finality of mountains that they flattened with the earth and scattered about – and like tufts of yarn are pulverized and al...

Most softening agents, such as rinse cycle fabric softeners, used by consumers at home contain cationic surfactants that have two long alkyl chains as their main component. The softening mechanism on fibers, especially cotton, has not yet been scientifically established, despite the market prevalence of fabric softeners for decades. One explanation for the softening effect is that the friction ...