ICLARM Progress Report

Report by John Dillon, recently elected Board Chair of ICLARM, on the Center's progress in recovering from a management crisis earlier in 1993. Among other things, Dillon reported on the interim arrangements following the resignation of the director general and board chair, including a new board action plan and mission statement, and the search for a new ICLARM director general.Agenda document, CGIAR International Centers Week, October 1993

Agricultural economists and world poverty: progress and prospects

New development paradigms come and go, seemingly with increasing rapidity, yet poverty remains the scourge of the developing nations. As we enter the new millennium, we fear that still more development fads and fancies will emerge, to be taken up and then dropped by the development community. These swings in fashion bring with them the danger that the ‘basics’ of effective development strategies for poverty reduction will be neglected. In this article, we advance some personal and perhaps controversial views about the virtues of getting agriculture moving as a means of reducing poverty, and about the role that agricultural economists can and should play in that endeavour.Food Security and Poverty,

Implementing biosecurity measures on dairy farms in Ireland

peer-reviewedDairy farms in Ireland are expanding in preparation for a new era of unrestricted milk production with the elimination of the European Union (EU) production quotas in 2015. Countries experiencing a changing agricultural demographic, including farm expansion, can benefit from documenting the implementation of on-farm biosecurity. The objectives of this study were to document and describe influences on biosecurity practices and related opinions on dairy farms. A representative response rate of 64% was achieved to a nationwide telesurvey of farmers. A 20% discrepancy was found between self-declared and truly ‘closed’ herds indicating a lack of understanding of the closed herd concept. Although >72% of farmers surveyed considered biosecurity to be important, 53% stated that a lack of information might prevent them from improving their biosecurity. Logistic regression highlighted regional, age, and farm-size related differences in biosecurity practices and opinions towards its implementation. Farmers in the most dairy cattle dense region were three times more likely to quarantine purchased stock than were their equivalents in regions where dairy production was less intense (P = 0.012). Younger farmers in general were over twice as likely as middle-aged farmers to implement biosecurity guidelines (P = 0.026). The owners of large enterprises were almost five times more likely to join a voluntary animal health scheme (P = 0.003), and were over three times more likely to pay a premium price for health accredited animals (P = 0.02) than were those farming small holdings. The baseline data recorded in this survey will form the basis for more detailed sociological and demographic research which will facilitate the targeting of future training of the farming community in biosecurity

Some Thoughts toward Ensuring the Successful Performance of Boards in the CGIAR System

Paper by John Dillon, based on his experience as a board member and chairman, on the tasks and performance of IARC boards. The paper presents an extensive overview of the roles, duties, powers, and practical operation of boards. It covers, among other things, the roles of various board committees, as well as the chairman. Also selection criteria, recruitment, and rotation of board members, and the function of nomination committees. Dillon assumes his readers are familiar with the Lowell Hardin 1984 paper, Roles, Relationships and Responsibilities of Trustees of International Agricultural Research Centers. He maintains a consistently light touch. The page numbers are not legible in this document, but paragraph numbers provide a workable substitute. This paper has no official status, but has been widely distributed to members of IARC boards as part of their briefing process

Farming Systems Research at the International Agricultural Research Centers

Final report of the Review of Farming Systems Research at CIAT, ICRISAT, IITA, and IRRI prepared by a team consisting of John Dillon, Donald Plucknett, and Guy Vallaeys. It also contains the proceedings of a May 1978 Workshop on Farming Systems Research in Nairobi based on the stripe review's analysis. This is the first CGIAR "stripe review," in which a particular topic common to a number or all the IARCs is examined. This was an agenda document at TAC Eighteen in February and TAC Nineteen in June, 1978, and at the CGIAR meeting in November 1978

Granular Media-Based Tunable Passive Vibration Suppressor

and vibration suppression device is composed of statically compressed chains of spherical particles. The device superimposes a combination of dissipative damping and dispersive effects. The dissipative damping resulting from the elastic wave attenuation properties of the bulk material selected for the granular media is independent of particle geometry and periodicity, and can be accordingly designed based on the dissipative (or viscoelastic) properties of the material. For instance, a viscoelastic polymer might be selected where broadband damping is desired. In contrast, the dispersive effects result from the periodic arrangement and geometry of particles composing a linear granular chain. A uniform (monatomic) chain of statically compressed spherical particles will have a low-pass filter effect, with a cutoff frequency tunable as a function of particle mass, elastic modulus, Poisson fs ratio, radius, and static compression. Elastic waves with frequency content above this cutoff frequency will exhibit an exponential decay in amplitude as a function of propagation distance. System design targeting a specific application is conducted using a combination of theoretical, computational, and experimental techniques to appropriately select the particle radii, material (and thus elastic modulus and Poisson fs ratio), and static compression to satisfy estimated requirements derived for shock and/or vibration protection needs under particular operational conditions. The selection of a chain of polymer spheres with an elastic modulus .3 provided the appropriate dispersive filtering effect for that exercise; however, different operational scenarios may require the use of other polymers, metals, ceramics, or a combination thereof, configured as an array of spherical particles. The device is a linear array of spherical particles compressed in a container with a mechanism for attachment to the shock and/or vibration source, and a mechanism for attachment to the article requiring isolation (Figure 1). This configuration is referred to as a single-axis vibration suppressor. This invention also includes further designs for the integration of the single-axis vibration suppressor into a six-degree-of-freedom hexapod "Stewart"mounting configuration (Figure 2). By integrating each singleaxis vibration suppressor into a hexapod formation, a payload will be protected in all six degrees of freedom from shock and/or vibration. Additionally, to further enable the application of this device to multiple operational scenarios, particularly in the case of high loads, the vibration suppressor devices can be used in parallel in any array configuration

Multiple Perspectives on Implementing Inter-University Computer Conferencing

The purpose of this symposium is to discuss the organization, design, implementation and preliminary evaluation of an inter-university collaborative learning experience that used computer mediated communication (CMC) to link graduate students in several universities to discuss issues related to distance education. The discussion is based on the Globaled project, a computer conference that was set up and implemented for the second time, during the Fall 1993 semester. Globaled was first implemented during the Spring of 1992. With the increasing offering of distance education as a graduate discipline in many traditional universities, Globaled, can be seen as a unique way to connect graduate students across States and countries to participate in discussions related to the field of distance education