The Use of an Advisory Council in a Vocational Agriculture Department

This research problem is a study of the use of advisory councils in vocational agriculture departments. Advisory groups have been used extensively in connection with many institutions and organizations in democratic societies. Public educational agencies, however, have been slow to accept and use advisory groups even though they have been recommended highly by authorities in education. In view of this discrepancy, this study is designed to investigate the use made of advisory councils in a vocational agriculture department. Unfortunately, in too many instances an undue share of the instructor’s time is devoted to a particular activity in which the department has participated meritoriously, which is often highly publicized, and which the instructor has special expertise. Overemphasizing such projects can lead to a farmer training program that becomes unbalanced. An active advisory council provides an exceptional opportunity for broadening and improving the agricultural instruction offered. This study was made in an effort to determine the following information regarding the use made of advisory councils in vocational agriculture departments: the extent of use made of advisory councils; the purposes of such council; the methods of organization; the conduct of meetings; the practices which appear likely to lead to success; the practices which appear likely to result in failures; the attitude of vocational agriculture teachers toward the use of advisory councils; and the outcomes or results credited to advisory group activities

Propulsion and Space Vehicle Systems Analysis Program Tensor I, volume I Technical report no. 341

Computer program for space vehicle and propulsion systems analysi

Building the Perfect Parasite: Cell Division in Apicomplexa

Apicomplexans are pathogens responsible for malaria, toxoplasmosis, and crytposporidiosis in humans, and a wide range of livestock diseases. These unicellular eukaryotes are stealthy invaders, sheltering from the immune response in the cells of their hosts, while at the same time tapping into these cells as source of nutrients. The complexity and beauty of the structures formed during their intracellular development have made apicomplexans the darling of electron microscopists. Dramatic technological progress over the last decade has transformed apicomplexans into respectable genetic model organisms. Extensive genomic resources are now available for many apicomplexan species. At the same time, parasite transfection has enabled researchers to test the function of specific genes through reverse and forward genetic approaches with increasing sophistication. Transfection also introduced the use of fluorescent reporters, opening the field to dynamic real time microscopic observation. Parasite cell biologists have used these tools to take a fresh look at a classic problem: how do apicomplexans build the perfect invasion machine, the zoite, and how is this process fine-tuned to fit the specific niche of each pathogen in this ancient and very diverse group? This work has unearthed a treasure trove of novel structures and mechanisms that are the focus of this review

Richard P. Feynman 1918-1988

Richard Feynman, simply put, was a genius. His quick wit and uncommon grasp of physics meant that any research area he encountered, he quickly mastered. Despite the fact that his own area of research was not geophysics, his life and work influenced almost all of us. Virtually every physics graduate student who started in the mid 60s or later was exposed to his Lectures on Physics, either by having them as a text for a course or by using them (as I did) to bone up for oral qualifying exams. Feynman diagrams appear in nearly every modern quantum mechanics textbook and are featured in his official Caltech portrait, which illustrates this article

An empirical model of the ionospheric electric potential

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/95360/1/grl12685.pd

Quantum Effects in Softly Broken Gauge Theories in Curved Space-Times

The soft breaking of gauge or other symmetries is the typical Quantum Field Theory phenomenon. In many cases one can apply the St$\ddot{\rm u}$ckelberg procedure, which means introducing some additional field or fields and restore the gauge symmetry. The original softly broken theory corresponds to a particular choice of the gauge fixing condition. In this paper we use this scheme for performing quantum calculations for some softly broken gauge theories in an arbitrary curved space-time. The following examples are treated in details: Proca field, massive QED and massive torsion coupled to fermion. Furthermore we present a qualitative discussions of the discontinuity of quantum effects in the massive spin-2 field theory, paying special attention to the similarity and differences with the massless limit in the spin-1 case.Comment: LaTeX, 13 pages, no figure

1999 Quadrantids and the lunar Na atmosphere

Enhancements of the Na emission and temperature from the lunar atmosphere were reported during the Leonids meteor showers of 1995, 1997 and 1998. Here we report a search for similar enhancement during the 1999 Quadrantids, which have the highest mass flux of any of the major streams. No enhancements were detected. We suggest that different chemical-physical properties of the Leonid and Quadrantid streams may be responsible for the difference.Comment: 5 pages, 1 figure, accepted for publication in MNRA