The theory of curves has a very long history.Moving frames defined on curves are important parts of this theory.They have never lost their importance.A point particle of constant mass moving along a trajectory in space may be seen as a point of the trajectory.Therefore, there is a very close relationship between the differential geometry of the tra
SAS-6 (SASS6) is essential for centriole formation in human cells and other organisms but its functions in the mouse are unclear.Here, we report that Sass6-mutant mouse embryos lack centrioles, activate the mitotic surveillance cell death pathway, and arrest at mid-gestation.In contrast, SAS-6 is not required for centriole formation in mouse embryo
As part of on-going efforts to use eco-friendly alternatives to chemical pesticides, leaf powder of Hemizygia welwitschii was sequentially extracted in ZYMACTIVE DOUBLE STRENGTH hexane, acetone and methanol.Bioassays were carried out to establish the most active fraction(s) against Sitophilus zeamais in maize.Maize grains (50 g) were treated with c
Understanding the impact of production, environmental exposure and age characteristics on the reliability of a population is frequently based on underlying science and empirical assessment.When there is incomplete science to prescribe which inputs should be included in a model of reliability Bama Tank to predict future trends, statistical model/var
Open data initiatives are characterized, in several countries, by a great extension of the number of data sets made available for access by public administrations, constituencies, businesses and other actors, such as journalists, international institutions and academics, to mention a few.However, most of the open data sets rely on selection criteri