47,747 research outputs found
Does Environmental Economics lead to patentable research?
In this feasibility study, the impact of academic research from social
sciences and humanities on technological innovation is explored through a study
of citations patterns of journal articles in patents. Specifically we focus on
citations of journals from the field of environmental economics in patents
included in an American patent database (USPTO). Three decades of patents have
led to a small set of journal articles (85) that are being cited from the field
of environmental economics. While this route of measuring how academic research
is validated through its role in stimulating technological progress may be
rather limited (based on this first exploration), it may still point to a
valuable and interesting topic for further research.Comment: 10 pages, 4 table
Is the San Andreas Fracture a bayonet-shaped fracture as inferred from the acoustic body waves in the SAFOD Pilot hole ?
The method using the propagation of acoustic body waves within the stress
modified areas around a vertical borehole has been applied to the granitic
formation penetrated by the SAFOD Pilot hole near the San Andreas Fault trace.
This method allows us investigating the horizontal in situ stresses. Only P
waves supplied useful and surprising information. A depth of 1270 m separates
an upper region of uniform thickness of stress modified areas, possibly
corresponding to a shear domain, and a lower region where there are
simultaneously two values of the thicknesses of the stress modified areas
(particularly between 1500 and 1600 m of depth) possibly corresponding to a
compressive and a shear domain. In order to integrate the contradictory effects
of the simultaneity of shear and compressive domains at some depths, as well as
the presence of three shear zones at particular depths, we propose that the San
Andreas Fault could be bayonet-shaped instead of planar. Other recent available
information in the literature about this fault, such as the presence of a fault
zone of low shear wave velocity, stress rotation measured with depth, and the
large angles of the frictional coefficients, can be logically explained by this
kind of fault geometry
Weak analytic hyperbolicity of complements of generic surfaces of high degree in projective 3-space
In this article we prove that every entire curve in the complement of a
generic hypersurface of degree in is
algebraically degenerate i.e there exists a proper subvariety which contains
the entire curve.Comment: 11 page
A New Global Theory of the Earth's Dynamics : a Single Cause Can Explain All the Geophysical and Geological Phenomena
After describing all the contradictions associated with the current Plate
Tectonics theory, this paper proposes a model where a single cause can explain
all geophysical and geological phenomena. The source of the Earth's activity
lies in the difference of the angular velocities of the mantle and of the solid
inner core. The friction between both spheres infers heat, which is the cause
of the melted iron which constitutes most of the liquid outer core, as well as
the source of the global heat flow. The solid inner core angular velocity is
supposed to remain steady, while the mantle angular velocity depends on
gyroscopic forces (involving acceleration) and slowing down due to external
attractions and, principally the motions of mantle plates 2900 km thick. The
variations of the geomagnetic field are therefore the direct consequence of the
variations of the angular velocity of the mantle relative to that of the inner
core. As a result, the biological and tectonic evolutions during geological
times are due to those phenomena. So, the limits of eras coincide exactly with
the passage to zero of the geomagnetic field. Here we show that cycles of about
230-250 millions years, which exhibit the correlation between the mantle
angular velocity variations, the geomagnetic variations, and therefore the
climate, allow us to predict future events : the current global warming which
parallels the Earth's magnetic field decrease
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