INTERNATIONAL MARKETS AND TRADE: AN IMPORTANT COMPONENT IN EXTENSION PROGRAMS

International Relations/Trade,

OUR FOOD INDUSTRY IN TRANSITION

Agribusiness,

REGIONAL CONFLICTS IN DAIRY POLICY

Agricultural and Food Policy,

On the vibronic level structure in the NO_3 radical. Part III. Observation of intensity borrowing via ground state mixing

The A^2E" ← X^2A'_2 absorption spectrum exhibits vibronically allowed transitions from the ground state of NO_3 to upper state levels having a"_1 and e' vibronic symmetries. This paper explores the coupling mechanisms that lend intensities to these features. While transitions to e' vibronic levels borrow intensity from the very strong B^2E' ← X^2A'_2 electronic transition, those to a"_1 levels involve only negligible upper-state borrowing effects. Rather, it is the vibronic mixing of the ground vibronic level of NO_3 with vibrational levels in the B^2E' electronic state that permit the a"_1 levels to be seen in the spectrum. These ideas are supported by vibronic coupling calculations. The fact that the intensities of features corresponding to the two different vibronic symmetries are comparable is thus accidental

New Records of Five Ground Beetles From Ohio (Coleoptera: Carabidae)

Five ground beetles (Carabidae), Carabus sylvosus, Elaphrus americanus, Cyclotrachelus incisus, Piesmus submarginatus and Amara crassispina are reported from Ohio for the first time

Harmonic measurements of the Galileo spacecraft X-band transmitter system

Harmonics of X-band (8.4 GHz) spacecraft transmitter systems can be used to measure the performance characteristics of higher frequency deep space communication links. The Galileo X-band transmitter system was measured at the second, third, and fourth harmonics (16.8, 25.2, and 33.6 GHz, respectively). The effective isotropic radiated power was determined to be approximately 52 dBm at 16.8 GHz, 47 dBm at 25.2 GHz, and 25 dBm at 33.6 GHz. These values can be useful, depending upon the sensitivity of the Earth-based receiving system and the distance of the spacecraft from Earth

MAJOR IDEAS IN THE HISTORY OF AGRICULTURAL FINANCE AND FARM MANAGEMENT

This paper contains two articles that discuss major ideas from the history of agricultural finance and farm management. The agricultural finance article focuses on ideas that emerged prior to 1960. These ideas are classified into those emerging from action and scientific-framing eras. The second article characterizes the evolution of farm management and production economics from its beginnings in about 1900 to the start of the 21st century. Emphasis is placed on the melding of ideas from agriculturalists and economists.Agricultural finance, farm management, production economics, Agricultural Finance,

Levels of abstraction in human supervisory control teams

This paper aims to report a study into the levels of abstraction hierarchy (LOAH) in two energy distribution teams. The original proposition for the LOAH was that it depicted five levels of system representation, working from functional purpose through to physical form to determine causes of a malfunction, or from physical form to functional purpose to determine the purpose of system function. The LOAH has been widely used throughout human supervisory control research to explain individual behaviour. The research seeks to focus on the application the LOAH to human supervisory control teams in semi-automated “intelligent” systems

Testing Hollnagel's contextual control mod

Please contact publisher for further reprinting or re-useThis article sets out to test the hypothetical COtext and COntrol Model (COCOM) developed by Hollnagel (1993). Essentially, Hollnagel develops the argument that team behavior should be analyzed at a macro, rather than micro, level. He proposes 4 principal models of team activity: strategic, tactical, opportunistic, and scrambled. These modes of team behavior vary in terms of the degree of forward planning (highest in the strategic mode) and reactivity to the environment (highest in the scrambled mode). He further hypothesizes a linear progression through the modes from strategic to tactical to opportunistic to scrambled, depending on context, and vice versa. To test the COCOM model, we placed teams of people in a simulated energy distribution system. Our results confirm Hollnagel's hypothesized model in 2 main ways. First, we show that the team behavior could be categorized reliably into the 4 control modes and this provided a useful way of distinguishing between experimental conditions. Second, the progression between control modes conformed to the linear progression as predicted. This research provided the first independent test of the COCOM model and lends empirical support to the hypotheses