NonQCD contributions to heavy quark masses and sensitivity to Higgs mass

We find that if the Higgs mass is close to its present experimental lower limit (100 GeV),Yukawa interactions in the quark-Higgs sector can make substantial contributions to the heavy quark MS masses.Comment: 16 pages, 1 figure. Fixed a few typos (eqs (7),(34)

The automation of a stellar proper motion measuring system Annual report, 1 Jul. 1966 - 30 Jun. 1967

Design and operation of automated stellar proper motion measuring syste

Moving from crime and punishment to success and reward: Transitioning from technical to educational research

Copyright © 2019: Sarah Dart, Kim Blackmore, Keith Willey, Anne Gardner, Smitha Jose, Raj Sharma, Sloan Trad, Lesley Jolly:. Many engineering academics interested in quality teaching and learning dabble with educational research. Some go further leaving their technical research field behind to embark head-long into what for many is an initially bewildering and conceptually challenging domain. Often peers perceive this transition as a crime (giving up on real engineering) liable to be punished with reduced access to funding and institutional recognition for one's research. The Australasian Association for Engineering Education (AAEE) has been sponsoring a Winter School in Engineering Education Research Methods since 2011, to help engineering academics change their transition story from one of crime and punishment to success and reward. While helpful, this transition is not a simple matter of learning new techniques but of altering one's perspective and habits of thinking and behaviour. Many participants find this both challenging and at least initially, a lonely pursuit. In this paper, participants in the 2018 school ask the question "what enables and hinders the transition to educational research"

Evaluations of Alternate Cropping Systems for Alfisols of the Indian Semi-arid Tropics

A three-year experiment examined the possibility of increasing the cropping intensity of a medium-deep Alfisol (red soil) by using sequential, relay, ratoon or intercropping systems. It was found that a short-season mungbean (Vigna radiata) crop could be taken before the commonly-grown castor crop but that castor yields were reduced by the delayed sowing. If the castor was sown after the harvest of mungbean in a sequential system the profits were less than from a sole castor system. Relay-sowing the castor 20 days before the harvest of mungbean gave 9 $US ha−1 greater profit than sole castor, but this is probably not enough to justify the more intensive double crop system. On the other hand a reasonable yield of horsegram (Macrotyloma uniflorum) could be produced after an early pearl millet crop, giving a worthwhile extra profit of 21$US ha−1 compared with sole pearl millet. Ratooning the sorghum gave ratoon yields that averaged only 14% of the first crop, so this system was not considered suitable for these lighter Alfisols. Intercropping systems of pearl millet/groundnut, sorghum/pigeonpea and groundnut/pigeonpea gave average yield increases of 24, 47 and 46%, respectively, compared with both component crops grown separately. Compared with growing only the higher value sole crop, increases in profits were 16, 82 and 120 $US ha−1 for the same three systems, respectively. It is concluded that intercropping systems provide the best opportunity for increasing cropping intensity on medium-deep Alfisols

Growth and resource use studies in an intercrop of pearl millet/groundnut

Growth and resource use data are presented for the sole crops and an intercrop of an 82-day millet and 105-day groundnut. The intercrop row arrangement was 1 millet: 3 groundnut and the within-row spacing of each crop was the same in sole crop and intercrop. In groundnut, yield/plant and yield components were similar in intercropping and sole cropping. In millet, on a per plant basis the dry matter accumulation, leaf area development and tiller production were all substantially greater in intercropping compared with sole cropping; final seed yield/plant was just over twice as high in intercropping, this being achieved by increases in heads/plant and seeds/head. Calculated on the basis of a Land Equivalent Ratio (LER) intercropping gave 28% more total dry matter (LER = 1.28) and 26% more reproductive yield (LER = 1.26) than growing the two crops separately; both these yield increases were statistically significant. There were even greater increases in the total leaf area index of the combined intercrop canopy (maximum LER = 1.39) but increases in the total root length of the combined rooting system were rather smaller (maximum LER = 1.18). The higher intercrop yield appeared to be achieved by an increased efficiency in converting light energy into dry matter and not by any increase in the amount of light energy intercepted. It is suggested that this increased efficiency may have been because the combined intercrop canopy resulted in light being more efficiently spread over a greater surface of leaf. Total water use was rather higher in intercropping and the total water use efficiency was improved because a greater proportion of the water was used by the crop rather than lost as evaporation from the soil surface. The LER values for total uptake of N, P and K in intercropping were 1.25, 1.28 and 1.26, respectively, indicating that the higher yield in intercropping was associated with a commensurately greater uptake of nutrients