This paper derives a gravity equation from two general equilibrium models with multi-national firms: a symmetric firm model where foreign affiliates rely on specific intermediate goods and a heterogenous firms model with country-specific fixed costs. Although the reduced form gravity equation is the same, the structural models behind it differ....
According to World Trade Organization rules, countries may adopt regulations under the Agreements on Sanitary and Phyto-Sanitary SPS and Technical Barriers to Trade TBT. We analyze the structure of these measures in agricultural trade. The inventory approach suggests that European countries have among the lowest coverage ratios of all OECD...
Probabilistic treatment of gauge theories. Quznetsov, G. Nova Science Publishers 2007 163 pages $89.00 Hardcover Contemporary fundamental physics series QC793 Written for students and others interested in theoretical physics, this presents the...
The great white hope of theoretical physics, which might produce a unified quantum theory of gravity and thus equates to a theory of everything, is string theory. Accordingly, it is the avenue down which the majority of research and funding has been going for the last few decades. ...
There are so many versions of the gravity model in the international trade literature that their results on trade effects inevitably vary even for the same international blocs. This paper evaluates these alternative specifications, and compares the resulting trade effects. The results show that there is considerable sensitivity to the...
Students in Linda Walter's physics classes don't just memorize facts and equations, they learn concepts through the most real- world situations her money can buy. When they learn about velocity, for instance, they drop balls and springs over motion detectors to see how motion is accelerated due...
In this work, we attempt to describe the classical physical fields of gravity, electromagnetism, and the so-called intrinsic spin chirality in terms of a set of fully geometrized constitutive equations. In our formalism, we treat the four-dimensional space-time continuum as a deformable medium and the classical...
We consider the Podkletnov effect--the weight loss of an object located over a superconducting disc in air due to support by an alternating magnetic field. We consider this problem using the mathematical methods of General Relativity. We show via Einstein's equations and the geodesic equations in...
Two-way slabs without beams are popular floor systems because of their relatively simple formwork and the potential for shorter story heights. Earthquakes, however, have demonstrated that slab-column frames are vulnerable to brittle punching shear failures in the slab-column connection region and dropping of the slab, which are costly to...
A ghostly ripple of dark matter is "seen" EITHER Newton and Einstein were wrong, or there is something missing from the universe. The reason for this is that galaxies do not behave as the laws of gravity predict they should. Most galaxies rotate ...
Processing and packaging is what dairy processors do, and for most dairy products the second part of the equation is done with filling equipment. Whether it's a gravity fed rotary filler for gallon jugs of milk, a volumetric ice cream filler or an in-line cup filler for yogurt, the filler...
The new dynamical theory of space is further confirmed by showing that the effective "black hole" masses [M.sub.BH] in 19 spherical star systems, from globular clusters to galaxies, with masses M, satisfy the prediction that [M.sub.BH] = [alpha]/2 M, where [alpha] is the fine structure constant....
Physics of continuous matter; exotic and everyday phenomena in the macroscopic world. Lautrup, B. IOP Publishing Ltd. 2005 608 pages $54.95 Paperback QC173 This textbook by Lautrup (Niels Bohr Institute, U. of Copenhagen, Denmark)...
The alleged existence of so-called Planck particles is examined. The various methods for deriving the properties of these "particles" are examined and it is shown that their existence as genuine physical particles is based on a number of conceptual flaws which serve to render the concept...
Abstract Heat sterilization is used to kill insects and fungi in wood being traded internationally. Determining the time required to reach the kill temperature is difficult considering the many variables that can affect it, such as heating temperature, target center temperature, initial wood...
Solidification and gravity; proceedings. International Conference on Solidification and Gravity (4th: 2004: Miskolc-Lillafured, Hungary) Ed. by A. Roosz et al. Trans Tech Publications 2006 648 pages $228.00 Paperback TS247 Recently research into the solidification...
The stellar equations of state treat the Sun much like an ideal gas, wherein the photosphere is viewed as a sparse gaseous plasma. The temperatures inferred in the solar interior give some credence to these models, especially since it is counterintuitive that an object with internal...
Processing and packaging is what dairy processors do, and for most dairy products the second part of the equation is done with filling equipment. Whether it's a gravity fed rotary filler for gallon jugs of milk, a volumetric ice cream filler or an in-line cup filler for yogurt, the filler...
Physical Space is identified as the universal Aether Space. An Aether Equation is deduced, predicting the Temperature of the Cosmic Background Radiation [T.sub.CMBR], and indicating that G and c are universal dependent variables. The strong nuclear force is found to be a strong gravitational force at...
It is pointed out that Special Relativity together with the principle of causality implies that the gravity of an electromagnetic wave is an accompanying gravitational wave propagating with the same speed. Since a gravitational wave carries energy-momentum, this accompanying wave would make the energy-stress tensor of...
Articles 2006-01-01
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