Scoring the sum of correlated results in analytical proficiency testing

In proficiency tests the participants' results are usually converted into scores. In some schemes the participants are required to report the sum of the concentrations of a number of analytes and this total also is converted into a score. In such instances the scoring procedure for the total should be mathematically consistent with that for the separate analytes. When these analytes are determined from a single test portion, however, the errors in the results from a participant are likely to be correlated because some stages of the analysis are common to all of the analytes. For a consistent outcome, the scoring method must take account of such correlation

Initial teacher education for the education and training sector in England: development and change in generic and subject specialist provision

This report reviews the current system of initial teacher education (ITE) for the education and training sector and its development from earlier systems. The report also discusses subject-specialist teaching in the education and training sector, leading to a provisional assessment of the potential of the current ITE system for enhancing subject-specialist pedagogy. The report begins by contextualising the development of ITE from the post-war period to the beginning of the New Labour years, followed by a more detailed discussion of the reforms introduced by Labour governments in 2001 and 2007 and the moves away from regulation introduced by the Conservative–Liberal Democrat Coalition government. The report then discusses the main features of the qualifications framework established following the Lingfield Review of 2011-12. The final part of the report focuses on the development of subject-specialist pedagogy in ITE courses, relating concerns expressed by Ofsted to debates about teacher knowledge and vocational pedagogies. A model for understanding approaches to subject-specialist pedagogy is developed, and applied to consider the potential of the current ITE system for strengthening this area of professional development

Sport Specific Drinking Motives Among Male Collegiate Hockey Players

Research shows that student athletes are consuming more alcohol than any other population on college campuses. Many studies have suggested that the culture of sport combined with the social setting and pressures of playing on a team put these athletes at a high risk for drinking heavily and suffering multiple alcohol related consequences. One area of research that has not been studied is the concept of sport specific drinking motives. Each individual sport has a unique culture and with it very diverse personalities. For this reason, we hypothesize that individual sports will likewise have unique drinking motives and expectations with regard to alcohol use. In particular, hockey players at UAF may drink for different reasons than the general UAF population

Surface Water Infiltration in Loess Soils of the Lower Mississippi River Valley: An Emphasis on Land Use

The Alluvial Aquifer is the shallowest and most heavily used groundwater aquifer in the Lower Mississippi River Valley, particularly in the Delta region of eastern Arkansas. However, the Alluvial Aquifer is being depleted faster than the rate of recharge, primarily due to excessive withdrawals for irrigated crop production. Since extensive irrigation in the highly agriculturally productive Delta region of eastern Arkansas has been a main culprit in the groundwater depletion issues the region faces, a better understanding of how ecological factors and/or agricultural best management practices could possibly increase infiltration, to consequently increase recharge, are needed in order to either slow down or reverse the declining aquifer levels through the Delta region of eastern Arkansas. Therefore, the objective of this study was to evaluate the effects of landuse on surface water infiltration into alluvial and loessial soils in the Delta region of eastern Arkansas. Landuse combinations of interest included conventional and no-tillage agricultural practices, deciduous and coniferous forests, and native/natural grasslands. Replicate infiltration measurements were conducted using a double-ring infiltrometer, with a 15-cm inner-ring diameter, across multiple sites representing each of the five landuses. Despite the initial soil water content being greater (P \u3c 0.05) in the grassland than in all other ecosystems, the overall infiltration rate into the deciduous forest ecosystem (1.2 cm hr-1) was greater (P \u3c 0.05) than all other landuse types, which did not differ and averaged 0.10 cm hr-1. In addition, though the slope of the relationship between the natural logarithm of the infiltration rate versus the mid-point of time was unaffected (P \u3e 0.05) by landuse, the intercept parameter differed (P \u3c 0.05) among landuses. Results of this study demonstrated that landuse significantly affects infiltration processes in the fine-textured loessial and alluvial soils in the Delta region of eastern Arkansas; thus, further research is warranted into factors that can increase surface infiltration and potentially groundwater recharge

The Endgame: America’s Exit from Syria

Ever since the 2011 Arab Spring protests in Syria fueled civil war costing nearly half a million lives to date, the US response has been cautious indecision. Syria became a proxy war with Russia, Iran, Hezbollah, the Turks, ISIS, the Kurds, and the local Syrian opposition all competing to support or oust Assad. All but the Kurds and select Syrian resistance groups opposed America. With billions spent on questionable war efforts in Afghanistan and Iraq, President Obama, the American public, and most of the military establishment were leery of direct US involvement in Syria. Apart from supporting the fight against ISIS and half-hearted demands that Bashar al Assad step aside as leader of Syria, neither President Obama nor President Trump have committed US troops to achieving anything more comprehensive. Optimally, the US should encourage multilateral efforts to negotiate Assad’s removal from office with Russia, address Turkish fears of Kurdish independence, or pressure Iran and Hezbollah to withdraw from Syria. Under present circumstances facing US policymakers, such optimizing is illusory. Whatever the limits and possibilities of USFP in the region today, it is clear that America needs a tactical retreat to reconsolidate its power and purpose to fight its Russian and Iranian foes another day when the direct stakes for American interests are higher

Has Government Tax Policy in Greece Led to a Large Shadow Economy?

This capstone investigates the impact that tax policy has on the shadow economy in Greece. Greece has one of the largest shadow economies in the world and the largest in the European Union, with tax evasion being one of the main drivers. While previous research has provided measures of the shadow economy, none matches the shadow economy estimations with policies, laws, and agencies enacted by the government, specifically over the period in time of 1990-2012. This study contributes to the literature by connecting the policies implemented by the government with the size of the shadow economy in Greece, along with providing a new model based on prior versions of the currency-demand model. The study concludes by considering, a piece of cultural analysis to help explain why the people of Greece are so prone to evade taxes and enter the shadow economy. Research of Dr. Geert Hofstede’s work on cultural dimensions shows that Greeks have high levels of power-distance, collectivism, and uncertainty avoidance, all which can be used to explain why they are susceptible to keep evading taxes. Using an adaption of the currency demand model, the regression results show that the shadow economy increased with 1) an increase in the amount of people that are self-employed 2) decreases to the middle income tax rate 3) and with increases in the lowest income tax rate. These results suggest that the tax system needs a combination of stronger oversight and penalties because of the extremely high levels of uncertainty avoidance that Greeks possess. The results also show that revenue can be captured by raising the middle income tax rate, and that raising the tax rate on the lowest bracket will tend to force those people into the shadow economy. This study provides useful conclusions on the Greek shadow economy from both an economic perspective and a sociological perspectiv

A Murine Model of Shigellosis: Pathophysiology of Shiga Toxin-2 Secreting Citrobacter Rodentium

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