Smart Search
Cari koleksi dengan cepat sesuai kebutuhan Anda.X chromosome inactivation is a mechanism that modulates the expression of X-linked genes in eutherian females (XX). Ohno proposed that to achieve a proper balance between X-linked and autosomal genes, those on the active X should also undergo a 2-fold upregulation. Although some support for Ohno’s hypothesis has been provided through the years, recent genomic studies testing this hypothesis…
There has been debate in the Collaboratory for the Study of Earthquake Predictability project about the most appropriate form of the likelihood function to use to evaluate earthquake forecasts in specified discrete space–time intervals, and also to evaluate the validity of the model itself. The debate includes whether the likelihood function should be discrete in nature, given that the foreca…
The downward continuation of the observed geomagnetic field from the Earth’s surface to the core–mantle boundary (CMB) is complicated due to induction and diffusion processes in the electrically conducting Earth mantle, which modify the amplitudes and morphology of the geomagnetic field. Various methods have been developed to solve this problem, for example, the perturbation approach by Be…
In an era steeped in the Gothic Revival, no image encapsulates the romance and the material culture of the Middle Ages more than the ‘knight in shining armour’. The suit of armour invokes the chivalric world of medieval Europe in a very direct way with its associated imagery of tournaments, prowess in battle, protection of the weak by the strong, and courtesy towards women. For American col…
A general method of solution for the runup evolution and some analytical results concerning a more general bathymetry than a canonical sloping beach model are presented. We studied theoretically the water wave elevation and runup generated on a continuous piecewise linear bathymetry, by solving analytically the linear shallow water wave equations in the 1+1 dimensional case. Non-horizontal line…
In 1955 the notable American politician and art collector, Nelson A. Rockefeller, commissioned a tapestry after Pablo Picasso’s canonical 1937 painting, Guernica. Not only did the Guernica tapestry catalyze Rockefeller’s significant collection of hand-woven tapestries reproducing Picasso paintings, but the tapestry also went on to circulate as a substitute for Picasso’s famous painting a…
As the first large subduction thrust earthquake off the coast of western Guatemala in the past several decades, the 2012 November 7 Mw = 7.4 earthquake offers the first opportunity to study coseismic and postseismic behaviour along a segment of the Middle America trench where frictional coupling makes a transition from weak coupling off the coast of El Salvador to strong coupling in southern Me…
Monitoring and understanding induced seismicity is critical in order to estimate and mitigate seismic risk related to numerous existing and emerging techniques for natural resource exploitation in the shallow-crust. State of the art approaches for guiding decision making, such as traffic light systems, rely heavily on data such as earthquake location and magnitude that are provided to them. In …
We investigate the validity of a proposed generalized Omori–Utsu law for the aftershock sequences for the Landers, Hector Mine, Northridge and Superstition Hills earthquakes, the four largest events in the southern California catalogue we analyse. This law unifies three of the most prominent empirical laws of statistical seismology—the Gutenberg–Richter law, the Omori–Utsu law, and a ge…