Aspects of urban unemployment in Uganda.

From the early years of this century, a periodic problem besetting development in Uganda has been shortage of labour, a shortage which was shared by the Baganda farmers who came to depend on hired labour. From the 1920s this shortage was met by increasing immigration of labour from countries bordering on Uganda, notably Ruanda-Urundi, by revruiting agencies and by a growing flow of' immigrants from West Nile, Kigezi and Ankole and later from other areas of Uganda (Powesland 1954). From the middle 1950s the annual reports of the Labour Department begin to mention periodic surpluses of the unskilled labour in towns, co-existing with shortages of labour elsewhere. The last reports of 1959 and 1960 speak of general surplus of all labour in towns, except the most highly skilled, and or growing numbers of school leavers coming onto the labour market with inadequate qualifications for the rising standards expected by employers. The reports qualify this by adding the unemployment was not a serious urban problem because the unemployed were able to return to their homes when they failed to find work

Comparison of soil erosion theory with scaled LM jet erosion tests

Soil erosion experiments with cold gas jet scaled to represent Apollo LM conditions in vacuum spher

Mars Surface Soil Erosion Study

Martian soil and surface changes under rocket engine exhaust load

Positive Bias in Positive Psychology

As the positive psychology movement has began to ramp up, many self-report measures have been created to research positive emotions such as gratitude, joy, and humility. While these measurements have been beneficial in giving researchers a baseline understanding into positive emotions, they are also explicit which presents the problem of self-presentation bias. We tend to view ourselves in a positive light and therefore rate ourselves more positively on self-reports. The purpose of this study was to investigate the distribution skew of commonly used positive self-report measurements for possible negative skew. We ran frequency distributions and calculated the skew of multiple measures used in five separate studies (N=900). Five measurements had a significant negative skew indicating a large proportion of participants scored the maximum or close to the maximum score on these measures: the Gratitude Questionnaire (GQ-6, skew -5 to -10), Gratitude, Resentment, and Appreciation Test (GRAT, skew -3 to -5), Gratitude Adjectives Scale (GAS, skew -3 to -5), Gratitude to God Test (GTG-T skew -2 to -3), and the Satisfaction with Life Scale (SWLS, skew -2 to -3). These results suggest that positive bias is an important issue in positive psychology that must be considered. We suggest controlling for self-presentation bias when analyzing results from these measure or implicit measures when available

On the calibration of the relation between geometric albedo and polarimetric properties for the asteroids

We present a new extensive analysis of the old problem of finding a satisfactory calibration of the relation between the geometric albedo and some measurable polarization properties of the asteroids. To achieve our goals, we use all polarimetric data at our disposal. For the purposes of calibration, we use a limited sample of objects for which we can be confident to know the albedo with good accuracy, according to previous investigations of other authors. We find a new set of updated calibration coefficients for the classical slope - albedo relation, but we generalize our analysis and we consider also alternative possibilities, including the use of other polarimetric parameters, one being proposed here for the first time, and the possibility to exclude from best-fit analyzes the asteroids having low albedos. We also consider a possible parabolic fit of the whole set of data.Comment: Accepted by MNRA

The Dimension Six Triple Gluon Operator in Higgs+Jet Observables

Recently a lot of progress has been made towards a full classification of new physics effects in Higgs observables by means of effective dimension six operators. Specifically, Higgs production in association with a high transverse momentum jet has been suggested as a way to discriminate between operators that modify the Higgs-top coupling and operators that induce an effective Higgs-gluon coupling---a distinction that is hard to achieve with signal strength measurements alone. With this article we would like to draw attention to another source of new physics in Higgs+jet observables: the triple gluon operator $O_{3g}$ (consisting of three factors of the gluon field strength tensor). We compute the distortions of kinematic distributions in Higgs+jet production at a 14 TeV LHC due to $O_{3g}$ and compare them with the distortions due to dimension six operators involving the Higgs doublet. We find that the transverse momentum, the jet rapidity and the difference between the Higgs and jet rapidity are well suited to distinguish between the contributions from $O_{3g}$ and those from other operators, and that the size of the distortions are similar if the Wilson coefficients are of the same order as the expected bounds from other observables. We conclude that a full analysis of new physics in Higgs+jet observables must take the contributions from $O_{3g}$ into account.Comment: To appear as a Rapid Communication in Physical Review

Missouri\u27s Feral Hog Task Force: Addressing Increasing Feral Swine Populations

Feral hog (Sus scrofa) populations are expanding in size and distribution in Missouri and other parts of the United States. Increases of this invasive species are a serious concern because of the damage they cause and diseases they carry. Affected stakeholders in Missouri formed a task force in 1998 with sixteen member agencies and organizations to develop a program for the control/eradication of feral hogs in the state. The task force identified three objectives with appropriate supporting strategies to help achieve the ultimate goal: protection of Missouri \u27s public health, agricultural economy, and natural resources through eradication of feral swine in Missouri. The task force has been an essential vehicle in working toward these objectives during a time when member agencies and organizations are tight on funding. The collaboration has accomplished several tasks that could not have been implemented by any single participant. This paper presents the successes and shortcomings of Missouri\u27s efforts and provides recommendations to other states that may implement feral hog control