In the housefly Musca domestica, synthesis of yolk proteins (YPs) depends on the level of circulating ecdysteroid hormones. In female houseflies, the ecdysterone concentration in the hemolymph oscillates and, at high levels, is followed by expression of YP. In male houseflies, the ecdysterone titre is constantly low and no YP is produced. In some strains, which are mutant in key components of t...

SYNOPSIS. Three yolk polypeptides (YPs) are major constituents of eggs. YPs are synthesized in the fat body and in ovary associated cells, secreted into the blood and sequestered into developing oocytes. YPs are translated as precursors which can be processed to lower molecular weight polypeptides by dog pancreatic microsomes, suggesting signal peptide removal. YP synthesis in both ovary and fa...

The development of rice genotypes with impressive tolerance to abiotic stress is one the primary objectives breeding programs. current study was carried out assess capability different indices identify that are drought-tolerant under Egyptian conditions during two growing seasons 2018 and 2019. Thirteen drought were calculated using grain yield twenty genotypes. According combined analysis vari...

Al-SiC composites were successfully produced with improved mechanical properties. Effect of SiC content, its particles size and shaping method were investigated. Three shaping methods of conventional powder metallurgy (PM), hot press (HP) and hot extrusion (EX) were used. The hardness of the samples was measured by Vickers method. Tensile and compression tests were performed for the characteriz...

The endoscopic appearance of the gastroesophageal valve, viewed by the retroflexed gastroscope, has been studied in 51 patients with and without reflux esophagitis. Esophagitis was graded according to its severity, and the yield pressure (YP) was measured in all patients to assess the competence of the cardia. There was a close relationship between the YP and the grades of the gastroesophageal ...

In this document we describe the Mixture EFA model estimated in Mplus. Four types of dependent variables are possible in this model: normally distributed, ordered categorical with logit or probit link, Poisson distributed with the exponential link function, and censored variables. Inflation is not available for the Censored and Poisson variables. Suppose that we estimate a K class model with M ...

In this note we consider a class of second order distributed parameter systems with structured perturbations ζ̈(t)+D ζ̇(t)+K ζ(t) = Bu+B f1(yp)+B f2(yv) and with partial position and velocity measurements: yp(t) = Cpζ(t), yv(t) = Cvζ̇(t). It is desired to design a controller so that the plant follows the reference model ζ̈m +Dmζ̇m(t)+Kmζm(t) = Br(t). The proposed model reference adaptive controller ...

A previous study indicated that genetic information encoded on the mouse Y chromosome short arm (Yp) is required for efficient completion of the second meiotic division (that generates haploid round spermatids), restructuring of the sperm head, and development of the sperm tail. Using mouse models lacking a Y chromosome but with varying Yp gene complements provided by Yp chromosomal derivatives...

The yolk polypeptides of Drosophila are normally synthesized in the fat body and ovarian follicle cells of adult females. In response to 20-hydroxyecdysone males synthesize yolk polypeptides. The actual level of yolk polypeptides synthesized in males is not always a direct reflection of the YP-transcripts present. Initially YP-transcripts are efficiently translated into polypeptides whereas lat...