Tidal oscillations at the head of Monterey Submarine Canyon and their relation to oceanographic sampling and the circulation of water in Monterey Bay. Annual report, Part 6, September 1972

During a 25-hour hydrographic times series at two stations near the head of Monterey Submarine Canyon, an internal tide was observed with an amplitude of 80 to 115 m in water depths of 120 and 220 m respectively. These large oscillations produced daily variations in hydrographic and chemical parameters that were of the same magnitude as seasonal variations in Monterey Bay. Computed velocities associated with the internal tide were on the order of 10 em/sec, and this tidally induced circulation may have a significant role in the exchange of deep water between Monterey Submarine Canyon and the open ocean. (PDF contains 49 pages

IMPACTS OF GENETICALLY MODIFIED (GM) TRAITS ON CONVENTIONAL TECHNOLOGIES

In hard red spring (HRS) wheat, the two GM traits nearest to commercialization are fusarium resistant wheat (FRW) from Syngenta and Roundup Ready® wheat (RRW). Monsanto announced that it has deferred the commercialization of RRW until issues of market acceptance are alleviated. Monsanto acknowledged that it might reconsider its position if another agbiotechnology firm enters the GM wheat market. A Cournot quantity competition model was developed to determine the equilibrium quantities of conventional pesticide and agbiotechnology firms. The Cournot model was used because firms that must make production decisions ahead of the selling period, and firms with extensive research and development costs are not able to aggressively set prices. Rather, the conventional and agbiotechnology firms determine Nash equilibrium quantities and then determine a market clearing price for their respective products. The agbiotechnology firm determined a profit maximizing technology fee ($/acre) for its GM trait. The market with conventional wheat only was compared to the market with conventional and GM wheat varieties to determine the price decreases of the conventional pesticide as a result of the GM trait introduction. Changes in farmer surplus, tech firm payoffs, and sector welfare were also analyzed. Using the actual number of firms with conventional herbicides labeled for use on HRS wheat in North Dakota and marginal production costs ranging from one to three dollars, introduction of RRW would cause a 20-25% price decrease for conventional herbicides. Similarly, four firms produce conventional fungicides labeled for the suppression of FHB in HRS wheat. This value, combined with per acre marginal production costs ranging from one to three dollars, would likely cause a 19-22% price decrease for conventional fungicides, post introduction of GM FRW. Several implications arise from these results. First, adoption of a new GM wheat variety may not be as high as expected due to likely concurrent price decreases of conventional pesticides. The price decrease leads to a lower production cost of conventional varieties, and some farmers who would likely adopt the GM variety, if there were no price decrease, do not adopt because of the lower cost of conventional production. This price decrease must be included in the determination of potential adoption rates by agbiotechnology firms in their pricing decisions. Second, the release of a GM wheat variety results in an increase in surplus for all types of wheat farmers (GM adopters, conventional pesticide adopters, and no technology adopters). GM adopters benefit because of the release of the GM variety. Conventional pesticide adopters benefit due to the price decreases of the conventional pesticides. Farmers who did not adopt any technology prior to the release of GM wheat may adopt the conventional pesticide because of the lower cost. Third, the release of a GM wheat variety would result in slightly lower payoffs for conventional pesticide producing firms but higher payoffs for agbiotechnology firms. Overall, surplus to farmers and conventional and agbiotechnology firms increases due to the release of a GM wheat variety.genetic modification, fusarium resistance, Roundup Ready®, technology, Crop Production/Industries, Research and Development/Tech Change/Emerging Technologies,

STRATEGIC ANALYSIS OF TRAIT COMMERCIALIZATION IN GENETICALLY MODIFIED (GM) GRAINS: THE CASE OF GM WHEAT

The prospective commercialization of GM traits leads to several strategic questions for agbiotechnology and seed firms. Important issues addressed in this study include the method of trait commercialization by agbiotechnology firms and variety production decisions by seed firms. Specifically, agbiotechnology firms must decide whether to license their traits to seed firms, to purchase a seed firm, or to not license or release their traits. These issues are highly strategic. The purpose of this study was to determine equilibrium strategies of agbiotechnology and seed firms regarding the prospective commercialization of two GM traits. Two game theory models were developed to examine equilibrium strategies in two different scenarios. In the first model, both agbiotechnology firms had commercialization strategies of licensing and not licensing. In the second model, the first moving agbiotechnology firm was allowed to have a strategic option to purchase a seed firm as a commercialization strategy. The second agbiotechnology firm remained with two strategies, licensing and not licensing. These models were applied to the case of Roundup Ready® (RR) and fusarium resistant (FR) HRS wheat, although the general structure of the models could be used to analyze other crops and traits. Studies on trait commercialization and stacking are lacking the public literature. This study uses game theory models to develop likely situations that may occur regarding the prospective commercialization of GM traits.genetically modified grains, wheat, Crop Production/Industries, Research and Development/Tech Change/Emerging Technologies,

Cosmic Microwave Background Observations as a Way to Discriminate Among Inflation Models

The upcoming satellite missions MAP and Planck will measure the spectrum of fluctuations in the Cosmic Microwave Background with unprecedented accuracy. We discuss the prospect of using these observations to distinguish among proposed models of inflationary cosmology.Comment: To appear in the proceedings of the XXXIIIrd Rencontres de Moriond, "Fundamental Parameters in Cosmology", 17-24 January, Les Arcs, France. 6 Pages, 2 figures, uses moriond.st

Shaping the Contours of Domestic Justice: The International Criminal Court and an Admissibility Challenge in the Uganda Situation

In December 2003, the Government of Uganda referred the situation in conflict-torn northern Uganda to the nascent International Criminal Court. It was the first referral by a State Party under Article 14 of the Rome Statute of ICC and led to the indictment of five leaders of the Lord’s Resistance Army (LRA). Four years later, Uganda found itself in the midst of promising peace negotiations with the LRA. A major obstacle to a final agreement was the refusal of the indicted leaders to face ICC justice. Seeking to peacefully resolve the conflict, the Government signed a preliminary agreement in which it would assume the prosecution of the indictees. Under the principle of complementarity embedded in Article 17 of the Rome Statute, the ICC cannot prosecute where a jurisdictional state has undertaken investigation or prosecution, unless the State’s action is in an attempt to shield the accused from justice. However, with the case against the LRA leaders already deemed admissible, an admissibility challenge would be necessary to withdraw the ICC indictments. This paper examines the various and complex issues regarding both the nature of challenging admissibility generally and particular issues that arise from such challenges in the context of State self-referrals. The article proposes three different visions of complementarity as a means of understanding the boundaries within which the Court may situate a decision, and applies them to the hypothetical situation of an admissibility challenge to the LRA indictments. The options of both the indictees and Uganda are explored and the prospects for a successful challenge are examined. The paper concludes by suggesting a critical role for the Court in both resolving conflict and shaping the contours of acceptable domestic efforts to bring those responsible for grave crimes to justice

Shaping the Contours of Domestic Justice: The International Criminal Court and an Admissibility Challenge in the Uganda Situation

In December 2003, the Government of Uganda referred the situation in conflict-torn northern Uganda to the nascent International Criminal Court. It was the first referral by a State Party under Article 14 of the Rome Statute of ICC and led to the indictment of five leaders of the Lord’s Resistance Army (LRA). Four years later, Uganda found itself in the midst of promising peace negotiations with the LRA. A major obstacle to a final agreement was the refusal of the indicted leaders to face ICC justice. Seeking to peacefully resolve the conflict, the Government signed a preliminary agreement in which it would assume the prosecution of the indictees. Under the principle of complementarity embedded in Article 17 of the Rome Statute, the ICC cannot prosecute where a jurisdictional state has undertaken investigation or prosecution, unless the State’s action is in an attempt to shield the accused from justice. However, with the case against the LRA leaders already deemed admissible, an admissibility challenge would be necessary to withdraw the ICC indictments. This paper examines the various and complex issues regarding both the nature of challenging admissibility generally and particular issues that arise from such challenges in the context of State self-referrals. The article proposes three different visions of complementarity as a means of understanding the boundaries within which the Court may situate a decision, and applies them to the hypothetical situation of an admissibility challenge to the LRA indictments. The options of both the indictees and Uganda are explored and the prospects for a successful challenge are examined. The paper concludes by suggesting a critical role for the Court in both resolving conflict and shaping the contours of acceptable domestic efforts to bring those responsible for grave crimes to justice

Deep Chandra observations of NGC 1404 : cluster plasma physics revealed by an infalling early-type galaxy

The intracluster medium (ICM), as a magnetized and highly ionized fluid, provides an ideal laboratory to study plasma physics under extreme conditions that cannot yet be achieved on Earth. NGC 1404 is a bright elliptical galaxy that is being gas stripped as it falls through the ICM of the Fornax Cluster. We use the new {\sl Chandra} X-ray observations of NGC 1404 to study ICM microphysics. The interstellar medium (ISM) of NGC 1404 is characterized by a sharp leading edge, 8 kpc from the galaxy center, and a short downstream gaseous tail. Contact discontinuities are resolved on unprecedented spatial scales (0\farcs5=45\,pc) due to the combination of the proximity of NGC 1404, the superb spatial resolution of {\sl Chandra}, and the very deep (670 ksec) exposure. At the leading edge, we observe sub-kpc scale eddies generated by Kelvin-Helmholtz instability and put an upper limit of 5\% Spitzer on the isotropic viscosity of the hot cluster plasma. We also observe mixing between the hot cluster gas and the cooler galaxy gas in the downstream stripped tail, which provides further evidence of a low viscosity plasma. The assumed ordered magnetic fields in the ICM ought to be smaller than 5\,μG to allow KHI to develop. The lack of evident magnetic draping layer just outside the contact edge is consistent with such an upper limit

Minimal zero-sequences and the strong Davenport constant

AbstractLet G be a finite Abelian group and U(G) the set of minimal zero-sequences on G. If M1 and M2∈U(G), then set M1∼M2 if there exists an automorphism ϕ of G such that ϕ(M1)=M2. Let O(M) represent the equivalence class of M under ∼. In this paper, we consider problems related to the size of an equivalence class of sequences in U(G) and also examine a stronger form of the Davenport constant of G