Two applications of difference methods to chains of linear oscillators

M.S.M. B. Sled

Nanoscale gold pillars strengthened through dislocation starvation

It has been known for more than half a century that crystals can be made stronger by introducing defects into them, i.e., by strain-hardening. As the number of defects increases, their movement and multiplication is impeded, thus strengthening the material. In the present work we show hardening by dislocation starvation, a fundamentally different strengthening mechanism based on the elimination of defects from the crystal. We demonstrate that submicrometer sized gold crystals can be 50 times stronger than their bulk counterparts due to the elimination of defects from the crystal in the course of deformation

Male teachers' perceptions of factors influencing career progress: A study of career-passage strategies

This study is located in the time period of 198 to 1987, a time of change and disruption in teaching, and focuses upon men teachers' perceptions of their past and present career. It suggests that reduced promotion opportunities have led teachers to a preoccupation with strategic presentations of self for the advancement of their professional career, and examines the detail of this through the utterances of teacher-respondents in the course of tape-recorded interviews with the researcher. Attention is given to respondents' accounts of factors which, in terms of achieved rank, they perceive to have influenced career both favourably and unfavourably. The study examines teachers' understandings of the opportunities, in various areas of their work, where effective self-presentations may be made, but also shows the importance of the promotion interview as the crucial 'rite of passage' which transports the teacher to higher levels of rank. The data consist of the accounts which respondents have provided; these have been tape-recorded, and selected passages are presented verbatim and analysed. Thirty-one respondents have been involved in the production of the data, some of these providing several interviews each, and developing the role of 'key respondent'. The methodology of the study is presented in some detail . with particular attention being given to methods of conversation-type interviewing and the influence upon this of factors within the setting. In its conclusion the study attempts to draw attention to some under-examined areas of teacher research, and particularly to the-need for additional information on the perceptions of selection-panel members - and other 'gatekeepers' - and of the role of the 'sponsor' in the promotion of teachers at various bureaucratic levels

Monaural sensitivity to dispersion in impulses and speech

technical repor

Uncertainty : the ethical basis for the economic theories of Frank H. Knight and John M. Keynes

John Maynard Keynes built his General Theory upon the assumption of an entrepreneurial economy in which money matters, because of the existence of uncertainty. Frank Hyneman Knight recognized the existence of uncertainty when he distinguished it from risk, incorporating each into his articulation of the classical economic model. In so doing, Keynes and Knight are as much philosophers as economists. The study examines the ethical dimension of uncertainty within the economic theories of Knight and Keynes. Intellectual and theological influences upon their respective theories of probability and uncertainty are considered. The role of uncertainty in defining the purpose and method of economics and leading to their divergent economic outlooks and policy recommendations is also investigated. The results of the study indicate that despite their common emphasis, both Knight and Keynes viewed the role of uncertainty from different perspectives, derived from significant, formative influences upon their thinking and differing views regarding the role and purpose of economic theory as applied to the real world. The intellectualism into which Keynes was born was based upon logic, science, and rational thinking. The resulting enlightened thinking led Keynes to consider individual and collective action positively, enabling society to take purposeful, deliberate action, in the face of an uncertain, nonergodic future. The theological, conservative thinking from which Knight emerged left him cynical and critical of the established orthodoxy. While accepting its theoretical basis, Knight criticized classical theory for omitting uncertainty as an endogenous variable and for the assumed rationality of economic man. Knight’s pessimism led him to suggest the government assume a negative role, limited to establishing and enforcing “rules of the game” to ensure the smooth operation of a system of otherwise free-markets. Still, both economists recognized the dramatic impact of uncertainty upon individual and collective decision making. Their mutual abhorrence for the inevitable results of unrestrained capitalism led each to suggest that economics be used in order to improve the conditions of society. Both Knight and Keynes remained passionate in their concern for the ultimate welfare and improvement of mankind, despite differences of opinion as to how this goal is to be achieved

The incidence of tuberculosis infection among the native inhabitants of the gold coast and its bearing on the question of immunity

In the Report of the Principal Registrar of Deaths in the Gold Coast for 1933 it was stated that during the previous three years the proportion of deaths from pulmonary tuberculosis had far exceeded that of all other killing diseases with the single exception of non- tuberculous affections of the respiratory tract.This disease accounted for 9.9 per cent. of the total deaths in 1931, 9.2 per cent. in 1932 and 10.5 per cent. in 1933. Tuberculosis of the respiratory tract and consequently the most infective form of the disease was far more common than any other type. In 1933 deaths from pulmonary tuberculosis numbered 658 as compared with 47 from other forms.In the Report of the Medical Department, Gold Coast, for 1932 -33, the Director of Medical Services wrote that the tuberculosis problem was one of the most important to be faced. He attributed the high incidence of this disease to insanitary housing, overcrowding, a total ignorance of the rudimentary laws of hygiene and lack of immunity. This lack of immunity associated with scanty tuberculisation of the native races is stressed by Young' in discussing the spread of tuberculosis among the African population of Nigeria.As resistance to a disease may be natural or acquired, so lack of it may be due to inherent susceptibility or to absence of opportunity to acquire immunity.According to Opie, there is' no proof that the negro race has any inherent susceptibility to tuberculosis, and in another report, the same author writes: "There is indeed very little convincing evidence for or against the opinion that inherited susceptibility on the one hand, or inherited resistance on the other, modifies the progress of tuberculosis in human beings ".Carter, on the other hand, has tried to show that the black races have less innate resistance than the white. He cites the results of sanitorium treatment to show that tuberculosis undergoes improvement more frequently in white people than in negroes, and he attaches particular significance to the observation that Mulattoes are in this respect intermediate between whites and blacks. He points out that Mulattoes and blacks live under practically identical environmental conditions, and he concludes that the Mulatto is more resistant because the White race has transmitted part of its inherited immunity to him.Carter has not considered the other possibility that the whites have by contact transmitted the disease to the Mulatto, and that by reason of this, acquired resistance may have been established. This possibility cannot be excluded.Fishberg states that tuberculosis is inherently not a racial problem and that one human race or ethnic group, when first encountering the tubercle bacillus, is as vulnerable to infection as another. It is only after they have been exposed to infection for generations that they acquire a certain degree of resistance which causes milder clinical forms of the disease than are found in races which are virgin soil to the bacilli.It would appear, therefore, that any want of immunity on the part of West African natives is due rather to lack of opportunity to develop resistance than to any hereditary or racial predisposition to the disease. This view is supported by Griffith6, who says that races previously free from tuberculosis are much more susceptible to the disease than those who have long been exposed to infection. He attributes the greater resistance of infected communities either to a weeding out of the more susceptible human beings, the resistant individuals surviving, or to an acquired immunity produced by slight infections which have been overcome.As acquired immunity depends on exposure to infection it would seem necessary to know the incidence of tuberculous infection before one can consider the degree of resistance to tuberculosis which a given population may have developed.A comparison of the infection rate with the mortality or morbidity rates would then give a measure of the acquired resistance of the population in question. A high infection rate associated with low mortälity or morbidity rates would suggest a considerable degree of resistance; the reverse condition would point to a low degree.It was because the author was unable to find any record of the incidence of tuberculous infection among the native inhabitants of the Gold Coast that the present investigation was begun

Weed Management with Pro-Herbicides Benzobicylon and Florpyrauxifen-Benzyl in Louisiana Rice Production

Field studies were conducted in 2020 and 2021 to evaluate benzobicyclon tolerance to 71 weedy rice accessions collected from Louisiana and southern Arkansas. Benzobicyclon was applied at 373 g ai ha-1 as a postflood application on 3- to 4-leaf rice. At 28 DAT, less than 15% control was observed on 70% of the accessions and 80% or better control was observed on 3% of accessions. Inconsistent weedy rice control can be attributed to the presence or absence of a functional HIS1 allele. The functional HIS1 allele was present in 96% of accessions when treated with benzobicyclon control was less than 15% and 84% of these accessions possessed the ALSS653N trait signifying resistance to imidazolinone herbicides. These data indicate that the functional trait marker discovered in this study is a strong indicator of benzobicyclon weedy rice sensitivity for weedy rice accessions. Field studies were conducted in 2020 and 2021 to evaluate the activity of florpyrauxifen-benzyl and halosulfuron plus prosulfuron on aquatic weeds. Florpyrauxifen-benzyl was applied at 0, 7.3, 14.6, and 29.2 g ai ha-1 alone and in combination with halosulfuron plus prosulfuron at 55 and 83 g ai ha-1 as a surface-coated urea or foliar liquid spray application. Applications were made across four, 30 by 30-cm plastic rings, each ring contained either ducksalad, floating primrose-willow, grassy arrowhead, or pickerelweed. Ducksalad treated with florpyrauxifen-benzyl, regardless of rate or application method, was controlled 98 to 99%. Floating primrose-willow treated with florpyrauxifen-benzyl was controlled less than 50% regardless of rate or application method. Grassy arrowhead and pickerelweed treated as a foliar liquid spray application, regardless of herbicide evaluated, were controlled 94 to 99% at 42 DAT. Field studies were conducted in 2020 and 2021 to evaluate the residual activity of florpyrauxifen-benzyl applied postflood into a weed-free environment as a surface-coated urea or postflood liquid spray application. Florpyrauxifen-benzyl was applied at 0, 7.3, 14.6, 21.9, and 29.2 g ai ha-1 as a surface-coated urea or postflood liquid spray application into 53-cm diameter plastic rings. Herbicide surface-coated urea applications reduced emergence, petiolate leaf development, and flowering of ducksalad compared with postflood liquid spray applications of florpyrauxifen-benzyl

Flamingo Vol. IV N 3

C.K. Cover. Picture. 0. Chaparral. Untitled. Prose. 1. Anonymous. Untiled. Picture. 5. Anonymous. LILAC LANE. Picture/Poem. 6. Greer, William. CUPID AND FORTUNA. Prose. 7. Anonymous. OUR IDEA OF POETRY. Poem. 8. R.S. Lady Fir. Poem. 9. V. Life. Poem. 9. C.K. Dinner. Poem. 9. D.W. Flat Rock. Poem. 9. B, Emma. A Tryst. Poem. 10. C.K. Song. Poem. 10. D.W. PERCIVAL. Poem. 10. Schmitz. Untitled. Picture. 10. W.G.M. Untitled. Poem. 10. Anonymous. HINTS ON VACATION ETIQUETTE. Prose. 11. E.S. Picture. 11. Anonymous. Untitled. Prose. 11. D.W. TO THE SENIORS. Poem. 12. Anonymous. Untitled. Poem. 12. Anonymous. RUN, BOY, RUN! Prose. 12. Anonymous. Untitled. Prose. 12. Anonymous. Picture. 13. G.W. GRANVILLE AT NIGHT. Poem. 13. C.K. ROUGH STUFF. Poem. 13. Anonymous. Untitled. Prose. 13. Davis, Dick. Picture. 13. Doc. Picture. 13. Anonymous. TWENTY YEARS AFTER. Poem. 13. Anonymous. Untitled. Prose. 13. Anonymous. Prose. 14. Anonymous. Untitled. Picture. 14. Anonymous. THE BEST OF FRIENDS MUST CRY. Prose. 15. Anonymous. IN THE ROLL OF THE BIRD\u27S KEEPERS. Prose. 15. Bridge. Denison Comics. Picture. 16. W.G.M. A DOLLAR BILL. Prose. 18. Anonymous. Picture. 18. Anonymous. Untitled. Prose. 18. Anonymous. MOVE OVER, ABE YOU\u27RE SETTIN\u27ON A BEE. Prose. 18. Deb. Untitled. Picture. 18. Anonymous. Untitled. Prose. 18. N.H.G. YE FABLE OF YE STUDENT ASSISTANT. Prose. 19. Deb. Untitled. Picture. 19. Anonymous. Untitled. Prose. 19. Anonymous. Blanc. Picture. 19. Anonymous. Campus Statistics. Prose. 19. Anonymous. Untitled. Prose. 19. Anonymous. AN INCIDENT OF THE FLAMINGO CAMP. Prose. 20. L.A.H. LITTLE STARIN\u27 ANNIE. Poem. 20. N.H.G. Our Evening Bedtime Story for Children-Mary Had a Little Lamb. Poem. 20. Anonymous. Untitled. Prose. 20. C.H. THE BALLAD OF THE POLE. Poem. 21. Anonymous. A REPLY. Prose. 21. Anonymous. Untitled. Prose. 21. E.B. He\u27s a Jazz Baby! Picture. 21. Anonymous. Untitled. Prose. 21. Anonymous. Meow. Prose. 21. C.K. PERCY MOUSE. Poem. 21. Anonymous. Untitled. Prose. 21. Anonymous. Untitled. Prose. 21. Anonymous. Untitled. Prose. 21. Anonymous. Untitled. Prose. 21. G.W. THE STORY IN A NUTSHELL. Poem. 22. Anonymous. Untitled. Prose. 22. Anonymous. Untitled. Poem. 22. N.H. Untitled. Poem. 22. N.H.G. Trouble at Podunk. Prose. 22. Anonymous. Untitled. Poem. 22. Anonymous. Picture. 25. Anonymous. Untitled. Prose. 25. Anonymous. Untitled. Prose. 26. Cougar\u27s Paw. Untitled. Prose. 27. Burr. Untitled. Prose. 28. Chaparrel. Untitled. Prose. 28. Mink. Untitled. Prose. 28. Bison. Untitled. Prose. 28. Freemont Messenger. Untitled. Prose. 28. Bison. Untitled. Prose. 28. Medley. Untitled. Prose. 28. Burr. Untitled. Prose. 28. Yellow Jacket. No Sale. Prose. 28. Black and Blue Jay. Untitled. Prose. 28. Crocker. Untitled. Prose. 28. Punch Bowl. Untitled. Prose. 28. Stone Mill. Untitled. Prose. 28. Puppet. Untitled. Prose. 29. Brown Jug. Untitled. Prose. 29. Cougar\u27s Paw. SCENE: A BUTCHER SHOP. Prose. 29. Dodger. Untitled. Prose. 29. Puppet. Untitled. Prose. 31. Bison. Untitled. Prose. 31. Stone Mill. Untitled. Prose. 31. Punch Bowl. Untitled. Prose. 31. Orange Owl. Untitled. Prose. 31. Brown Jug. Untitled. Prose. 31. John Hopkins. Untitled. Prose. 31. Wampus. BRINGING DOWN FATHER. Prose. 32. Gargoyle. Untitled. Prose. 32. Purple Parrot. Untitled. Prose. 32. Navy Log. LOGICAL—AT LEAST! Prose. 32. Chaparral. Untitled. Prose. 32. Lampoon. Untitled. Prose. 32. Banter. Untitled. Prose. 32