Vibrator improves spark erosion cutting process

Variable frequency mechanical vibrator improves spark erosion cutting process. The vibration of the cutting tip permits continual flushing away of residue around the cut area with nondestructive electric transformer oil during the cutting process

Starburst Galaxies

Star-formation and the Starburst phenomenon are presented with respect to a number of nearby star-forming galaxies where our understanding of the process can be calibrated. Methods of estimating star-formation rates are discussed together with the role played in the investigation of the process by multi-wavelength studies of a few selected starburst galaxies (especially the well studied galaxy M82). Our understanding of nearby systems allows us to study the star-formation history of the Universe by observing high-redshift starburst galaxies. These begin to dominate the radio source populations at centimetric wavelengths at flux densities below a few 10s of Jy. New very sensitive, high resolution telescopes in the sub-mm and radio will revolutionize our understanding of these distant star-forming systems, some of which may contain embedded AGN.Comment: 15 pages, 19 figures, To appear in the proceedings of `The 8th European VLBI Network Symposium on New Developments in VLBI Science and Technology', ed. A. Marecki et al., held in Torun, Poland, on September 26-29, 2006 (Invited Review

Stability and Validity of the Strong Vocational Interest Blank in the Prediction of Success in Veterinary Medicine Curriculum

That indices of mental ability alone do not predict scholastic achievement adequately is a well-known fact. It would seem a reasonable hypothesis, then, that non-intellective influences, notably motivation or interest, are operative. This being the case, consideration of a measure of interest along with the more customary employment of some measure of academic aptitude could be hoped to enhance prediction of scholastic success. Further, selection only on the basis of ability to complete the curriculum is a short-sighted goal for administrators, especially in professional curricula such as Veterinary Medicine. They might well be equally concerned about choosing those students who will be compatible with the requirements of veterinary medicine upon graduation and subsequent entry into actual practice. A high degree of interest in veterinary medicine is probably necessary for satisfaction and stability in the vocation. Thus the utilization of a measure of interest would be an aid in vocational counseling even though it may prove to be statistically unrelated to scholastic success. Investigation of the stability of interests is also of importance to the fields of student selection and counseling, for if interests tend to undergo major changes with training and/or the passage of time, selection or counseling based upon such measures can have little or no validity