11,015 research outputs found
ENVIRONMENTAL REGULATION AND IMPLICATIONS FOR COMPETITIVENESS IN INTERNATIONAL PORK TRADE
Environmental concerns linked to hog production are growing in the United States, Canada, and the European Union. New regulations controlling animal manure management are being imposed to address these concerns. This study determines that potential increases in U.S. and Canadian environmental regulation would have minimal effects on the relative competitiveness of pork exports for these countries. By contrast, more stringent European Union regulations have potential to significantly reduce EU competitiveness and contribute to the trend of increasing export market share for U.S. and Canadian pork products.Environmental Economics and Policy,
ENVIRONMENTAL REGULATION AND IMPLICATIONS FOR COMPETITIVENESS IN INTERNATIONAL PORK TRADE
This paper was presented at the INTERNATIONAL TRADE IN LIVESTOCK PRODUCTS SYMPOSIUM in Auckland, New Zealand, January 18-19, 2001. The Symposium was sponsored by: the International Agricultural Trade Research Consortium, the Venture Trust, Massey University, New Zealand, and the Centre for Applied Economics and Policy Studies, Massey University. Dietary changes, especially in developing countries, are driving a massive increase in demand for livestock products. The objective of this symposium was to examine the consequences of this phenomenon, which some have even called a "revolution." How are dietary patterns changing, and can increased demands for livestock products be satisfied from domestic resources? If so, at what cost? What will be the flow-on impacts, for example, in terms of increased demands for feedgrains and the pressures for change within marketing systems? A supply-side response has been the continued development of large-scale, urban-based industrial livestock production systems that in many cases give rise to environmental concerns. If additional imports seem required, where will they originate and what about food security in the importing regions? How might market access conditions be re-negotiated to make increased imports achievable? Other important issues discussed involved food safety, animal health and welfare and the adoption of biotechnology, and their interactions with the negotiation of reforms to domestic and trade policies. Individual papers from this conference are available on AgEcon Search. If you would like to see the complete agenda and set of papers from this conference, please visit the IATRC Symposium web page at: http://www1.umn.edu/iatrc.intro.htmEnvironmental Economics and Policy, International Relations/Trade,
Microbial Effects on Repository Performance
This report presents a critical review of the international literature on microbial effects
in and around a deep geological repository for higher activity wastes. It is aimed at
those who are familiar with the nuclear industry and radioactive waste disposal, but
who are not experts in microbiology; they may have a limited knowledge of how
microbiology may be integrated into and impact upon radioactive waste disposal
safety cases and associated performance assessments (PA)
The direct numerical simulations of the turbulent wakes of axisymmetric bodies
Results of direct numerical simulations of turbulence are compared with both laboratory data and self-similarity theory for the case of the turbulent wakes of towed, axisymmetric bodies. In general, the agreement of the simulation results with both the laboratory data and the self-similarity theory is good, although the comparisons are hampered by inadequate procedures for initializing the numerical simulations
Asteroseismic modeling of 16 Cyg A & B using the complete Kepler data set
Asteroseismology of bright stars with well-determined properties from
parallax measurements and interferometry can yield precise stellar ages and
meaningful constraints on the composition. We substantiate this claim with an
updated asteroseismic analysis of the solar-analog binary system 16 Cyg A & B
using the complete 30-month data sets from the Kepler space telescope. An
analysis with the Asteroseismic Modeling Portal (AMP), using all of the
available constraints to model each star independently, yields the same age
( Gyr) and composition (, ) for both stars, as expected for a binary system. We quantify the
accuracy of the derived stellar properties by conducting a similar analysis of
a Kepler-like data set for the Sun, and we investigate how the reliability of
asteroseismic inference changes when fewer observational constraints are
available or when different fitting methods are employed. We find that our
estimates of the initial helium mass fraction are probably biased low by
0.02-0.03 from neglecting diffusion and settling of heavy elements, and we
identify changes to our fitting method as the likely source of small shifts
from our initial results in 2012. We conclude that in the best cases reliable
stellar properties can be determined from asteroseismic analysis even without
independent constraints on the radius and luminosity.Comment: 5 emulateapj pages, 1 table, 1 figure. ApJ Letters, accepte
Localized shear generates three-dimensional transport
Understanding the mechanisms that control three-dimensional (3D) fluid
transport is central to many processes including mixing, chemical reaction and
biological activity. Here a novel mechanism for 3D transport is uncovered where
fluid particles are kicked between streamlines near a localized shear, which
occurs in many flows and materials. This results in 3D transport similar to
Resonance Induced Dispersion (RID); however, this new mechanism is more rapid
and mutually incompatible with RID. We explore its governing impact with both
an abstract 2-action flow and a model fluid flow. We show that transitions from
one-dimensional (1D) to two-dimensional (2D) and 2D to 3D transport occur based
on the relative magnitudes of streamline jumps in two transverse directions.Comment: Copyright 2017 AIP Publishing. This article may be downloaded for
personal use only. Any other use requires prior permission of the author and
AIP Publishin
SCYPHOSTEGIA BORNEENSIS STAPF*Anatomy of Stem and Leaf in Relation to its Taxonomic Position
From an examination of anatomical characters it appears that the genus Scyphostegia is not related to Monimiaceae and Moraceae but represents a separate family related to Flacourtiaceae
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