A penetrated ovum was recovered from the oviduct of a 33 year old surgical patient who had had sexual intercourse 26 hr before the operation. The ovum was in the pronuclear stage. The ooplasmic organelles were mainly represented by mitochondria, endoplasmic reticulum components, and Golgi elements. Small vesicles were found in the space between the two sheets of the pronuclear envelope. These v...

This study suggests that paternal age may be inversely associated with reproductive outcome, as demonstrated by a decline in fertilization, blastocyst formation, implantation and cryopreservation rates with advancing age.

This paper presents research on the distribution of economic benefits from brownfield cleanup and land development. There is growing concern that cleaning up blighted areas, including brownfields, can entrench inequality by disproportionately benefiting some demographic groups more than others. We look for evidence disproportionate relating changes in move decisions to use activity Chicago usin...

The determination of a baby’s sex begins at the chromosomal level with the insemination of the ovum. Further sexual differentiation follows during the subsequent embryogenesis. However, chromosomal anomalies, gene mutations, and other exogenous or endogenous factors can cause disorders of sexual differentiation. These disorders manifest during childhood or at the latest in puberty, making patie...

Einige Analysten haben aufgrund nachgelassener Beigeisterung für mobile Dienste den M-Commerce bereits totgesagt [GK02]. Nicht erfüllte Umsatzerwartungen, zusammen mit Fehlschlägen im technischen Bereich, haben in den letzten Jahren sicherlich für eine gedämpfte Stimmung gesorgt. Doch ist die Aussicht wirklich so negativ? Laut einer Studie von Ovum aus dem Jahre 2003 wird, selbst bei sehr eng g...

The determination of a baby’s sex begins at the chromosomal level with the insemination of the ovum. Further sexual differentiation follows during the subsequent embryogenesis. However, chromosomal anomalies, gene mutations, and other exogenous or endogenous factors can cause disorders of sexual differentiation. These disorders manifest during childhood or at the latest in puberty, making patie...

This paper reports the results of a study of the effect of chronic long term stimulation of the AIJ on tubal functions and fertility in rabbits. Preliminary experiments show that a 6 Volt 48 Hz 1 ms pulse stimulation with implanted electrode the tubal diameter and the high activity motility bursts were also fewer after stimulation. Therefore the contraceptive action observed in rabbits could be...