AGRICULTURAL TRADE LIBERALIZATION UNDER NAFTA: THE NEGOTIATION PROCESS

International Relations/Trade,

Can Canada's Supply Managed Dairy Industry Survive the Doha Round?

International Relations/Trade,

AGRICULTURAL POLICIES, TRADE AGREEMENTS AND DISPUTE SETTLEMENT

Agricultural and Food Policy, International Relations/Trade,

What if the Doha Round Fails? Implications for Canadian Agriculture

Many commentators assume that the WTO Doha Round negotiations have already failed and that this failure will not matter for Canadian agriculture. Neither view is correct. Most countries appear willing to make the effort needed to bring the negotiations to a make or break point in early 2008. If the Doha Round does eventually fail, an important opportunity to make the agricultural trading system significantly less distorted, more open and fair will have been lost. For Canadian agriculture, the failure to move the Doha Development Agenda (DDA) forward has more serious consequences than just missing the chance to improve the rules governing agricultural trade; it could signal a return to increased protectionism, more managed trade, a return to competitive subsidization, and an escalation in the number of trade disputes.International Relations/Trade,

What if the Doha Round Fails? Implications for Canadian Agriculture

Many commentators assume that the WTO Doha Round negotiations have already failed and that this failure will not matter for Canadian agriculture. Neither view is correct. Most countries appear willing to make the effort needed to bring the negotiations to a make or break point in early 2008. If the Doha Round does eventually fail, an important opportunity to make the agricultural trading system significantly less distorted, more open and fair will have been lost. For Canadian agriculture, the failure to move the Doha Development Agenda (DDA) forward has more serious consequences than just missing the chance to improve the rules governing agricultural trade; it could signal a return to increased protectionism, more managed trade, a return to competitive subsidization, and an escalation in the number of trade disputes.International Relations/Trade,

\u3cem\u3eArabidopsis\u3c/em\u3e AZI1 Family Proteins Mediate Signal Mobilization for Systemic Defence Priming

Priming is a major mechanism behind the immunological \u27memory\u27 observed during two key plant systemic defences: systemic acquired resistance (SAR) and induced systemic resistance (ISR). Lipid-derived azelaic acid (AZA) is a mobile priming signal. Here, we show that the lipid transfer protein (LTP)-like AZI1 and its closest paralog EARLI1 are necessary for SAR, ISR and the systemic movement and uptake of AZA in Arabidopsis. Imaging and fractionation studies indicate that AZI1 and EARLI1 localize to expected places for lipid exchange/movement to occur. These are the ER/plasmodesmata, chloroplast outer envelopes and membrane contact sites between them. Furthermore, these LTP-like proteins form complexes and act at the site of SAR establishment. The plastid targeting of AZI1 and AZI1 paralogs occurs through a mechanism that may enable/facilitate their roles in signal mobilization

Do social networks impact perceived loneliness in caregivers to older adults with chronic conditions?

The abstract is not published at this time to protect intellectual property

The medicine hat block and the early paleoproterozoic assembly of Western Laurentia

© 2020 by the authors. Licensee MDPI, Basel, Switzerland. The accretion of the Wyoming, Hearne, and Superior Provinces to form the Archean core of western Laurentia occurred rapidly in the Paleoproterozoic. Missing from Hoffman’s (1988) original rapid aggregation model was the Medicine Hat block (MHB). The MHB is a structurally distinct, complex block of Precambrian crystalline crust located between the Archean Wyoming Craton and the Archean Hearne Province and overlain by an extensive Phanerozoic cover. It is distinguished on the basis of geophysical evidence and limited geochemical data from crustal xenoliths and drill core. New U‐Pb ages and Lu‐Hf data from zircons reveal protolith crystallization ages from 2.50 to 3.28 Ga, magmatism/metamorphism at 1.76 to 1.81 Ga, and εHfT values from −23.3 to 8.5 in the Archean and Proterozoic rocks of the MHB. These data suggest that the MHB played a pivotal role in the complex assembly of western Laurentia in the Paleoproterozoic as a conjugate or extension to the Montana Metasedimentary Terrane (MMT) of the northwestern Wyoming Province. This MMT–MHB connection likely existed in the Mesoarchean, but it was broken sometime during the earliest Paleoproterozoic with the formation and closure of a small ocean basin. Closure of the ocean led to formation of the Little Belt arc along the southern margin of the MHB beginning at approximately 1.9 Ga. The MHB and MMT re‐joined at this time as they amalgamated into the supercontinent Laurentia during the Great Falls orogeny (1.7–1.9 Ga), which formed the Great Falls tectonic zone (GFTZ). The GFTZ developed in the same timeframe as the better‐known Trans‐Hudson orogen to the east that marks the merger of the Wyoming, Hearne, and Superior Provinces, which along with the MHB, formed the Archean core of western Laurentia

Physical, Chemical, and Mineralogical Controls on Retardation of Anatoxin-a Migration by Sorption to Natural Soils with Implications for Groundwater Protection

Increasing prevalence of cyanotoxins in surface water bodies worldwide threatens groundwater quality when contaminated water recharges an aquifer through natural or artificial means. The subsurface fate of anatoxin-a (ATX) is not well studied. Laboratory batch experiments were performed to expand the current knowledge of ATX sorption affinities to geologic media, with a focus on natural soil (Vertisol, Ultisol, Alfisol, and Inceptisol) and physical, chemical, and mineralogical characteristics. For a range of aqueous ATX concentrations (0.3–14 μg/L), linear, Freundlich, and Langmuir isotherms fit observed data well (r2 = 0.92–1.00, RMSE = 0.4–6.3 μg/kg). Distribution coefficient (Kd) and retardation factor (Rf) values were computed for the linear isotherm, giving Kd of 22.3–77.1 L/kg and Rf of 62–256. Average percent removals were 85.0–92.2%. The strongest predictors of Kd were kaolinite and smectite group mineral abundances and for Rf were smectite group and silt and clay abundances. Results indicate that loamy, silty, or clayey soils—particularly Vertisols—tend to substantially slow migration of ATX through natural soil systems. Where implemented as a functionalized amendment in an engineered pollution control media, such soils may enhance natural ATX attenuation processes, thereby supporting the protection of in situ and extracted groundwater during irrigation, natural and managed aquifer recharge, or riverbank filtration

Effects of Caffeine on Prospective and Retrospective Working Memory in Rodents

Caffeine is a substance that many people now consider to be a necessary part of their daily routines due to its desired effect of keeping us awake and functional. It’s been subject to much 59 debate over the years as to how it affects performance in terms of memory and cognitive ability. In our study, we examined the performance of 15 male rats in a delayed matching-toposition task (delayed from 1-20 seconds) after administering intraperitoneal injections of caffeine (10 mg/kg) to assess their levels of working memory and compared them to a control group that was similarly injected with saline. Each group of rats were trained in this task prior to experimental trials using methods of either differential outcomes (DO) or non-differential outcomes (NDO) and their performance measured as using prospective and retrospective working memory respectively. Pairwise comparisons using Fischer’s LSD showed a significant decrease in performance of those injected with caffeine at the 5 and 10 second delay in the DO group and at the 5 second delay in the NDO group when compared with those in the control groups in each condition. The results show that more can be learned about caffeine’s effects on working memory and that further research with a larger subject pool would be a promising way to do so.https://openriver.winona.edu/urc2019/1099/thumbnail.jp