The testes of fetal, prepuberal and adult XX----XY chimaeras were examined using in situ hybridisation to identify the beta-globin transgenic marker contained in one component of each chimaera. This enabled the proportion of XX and XY cells contributing to the major cell lineages of the testis to be estimated from sectioned and air-dried material. A few XX Sertoli cells were found in all three ...

Magnetic nanoparticles can bind to different drug delivery systems and can be used for drug targeting to a specific organ by using an external magnetic field as well as used in hyperthermia by heating in alternating magnetic fields. The characteristics of iron oxide nanoparticles are significantly affected by particle size, shape and zeta potential, among which the particle size plays the most ...

It has previously been shown that XO mouse fetuses with a paternally derived X chromosome (Xp) are developmentally retarded and consequently smaller than their XX sibs, and that XX fetuses are retarded when compared with their XY sibs. The genetic basis for these early XO-XX and XX-XY differences has not been determined. Here we show that 10.5 day post coitum XO mouse fetuses with a maternal X ...

and Applied Analysis 3 Proof. SettingK 1 = u−∂ 2 xx u andK = (m−∂2 xx ) −1 u and using the first equation of the problem (5), we obtain u = my − y xx and

We derive the expectations of the matrices xx'" C3 xx' and xx'" C3 xx"' C3 xx.", where C3 denotes a Kronecker product. From this, second and third moments of quadratic forms are obtained. The moments are derived under the following assumption on the product moments of the elements X, of x: For any non-negative integers a,, . . . , ah with C a, 1 6 , E[XE1X2. . . X z ] is i) finite; ii) zero, if...

Problem 6.25 Consider a wide sense stationary random sequence X[n] input to a linear filter with impulse response h[n] = 1/2, n = {0, 1} 0, otherwise. (1) Write the PSD of the output sequence S Y Y (ω) in terms of the PSD of the input sequence S XX (ω). (a) Show that the PSD is real-valued, even if X[n] is a complex-valued random sequence. (b) Show that if X[n] is real-valued, then S XX (ω) = S...

Rainbow trout homogametic males, (XX or YY sex genotype), can be obtained, respectively, through masculinisation of genetic females or induced androgenesis. Aim of this study was to compare reproductive potential of neo-males (XX) and super-males (YY) with heterogametic males (XY). We measured spermatozoa motility parameters, sperm concentration, osmolality and characterized protein profiles in...

The occurrence of 46,XX/47,XX,+21 mosaicism in two successive generations implies an aetiological relationship between the 47,XX,+21 cell line of the mother and her daughter.

The authors describe a family with three members affected by glioblastoma. The proband patient, a 7 year-old girl, developed a rare complication, a pulmonary metastasis. Chromosomal analysis of her peripheral blood lymphocytes showed a normal karyotype (46, XX), without structural abnormalities. Cytogenetic study of the tumor cells disclosed several abnormalities: 46, XX, 7q-/46, XX, -2, 4p-, 7...

xx ? < T 0 xx >) > < T xx > 2 ; (A4:1) where P is the noise source correlation function, and we have made the assumption that < T xx > is equal to < T 0 xx >. Here T xx is the aligned component of T ij in the direction between the source and the distant observer, and the constant density term has been removed. P involves the fourth order covariance between the ow properties at two separated poi...