Claytonia tuberosa Pall. ex Willd.

https://thekeep.eiu.edu/herbarium_specimens_byname/10572/thumbnail.jp

Claytonia tuberosa Pall. ex Willd.

https://thekeep.eiu.edu/herbarium_specimens_byname/10572/thumbnail.jp

Self-Assessment and Student Improvement in an Introductory Computer Course at the Community College Level 1

The purpose of this study was to determine a student’s computer knowledge upon course entry and if there was a difference in college students’ improvement scores as measured by the difference in pretest and post-test scores of new or novice users, moderate users, and expert users at the end of a college level introductory computing class. This study also determined whether there were differences in improvement scores by gender or age group. The results of this study were used to determine whether there was a difference in improvement scores among the three campus locations participating in this study. Four hundred sixty-nine students participated in this study at a community college located in Northeast Tennessee. A survey, pretest, and post-test were administered to students in a college level introductory computing class. The survey consisted of demographic data that included gender, age category, location, Internet access, educational experience and the self-rated user category, while the pretest and post-test explored the student’s knowledge of computer terminology, hardware, the current operating system, Microsoft Word, Microsoft Excel, and Microsoft PowerPoint. The data analysis revealed significant differences in pretest scores between educational experience categories. In each instance, the pretest mean for first semester freshmen students was lower than second semester freshmen and sophomores. The study also reported significant differences between the self-rated user categories and pretest scores as well as differences in improvement scores (post-test scores minus pretest scores). However, the improvement scores (post-test scores minus pretest scores) were higher than the other self-rated user categories. Of the three participating campus locations, students at Location 1 earned higher improvement scores than did students at Location 2. The results also indicated that there was a significant difference between the types of course delivery and course improvement scores (post-test scores minus pretest scores). The improvement scores for on ground delivery was 5 points higher than the hybrid course delivery. Finally, study revealed no significant differences according to the gender and age categories

Self-Assessment and Student Improvement in an Introductory Computer Course at the Community College Level

Excerpt:The purpose of this study was to determine a student’s computer knowledge upon course entry and if there was a difference in college students’ improvement scores as measured by the difference in pretest and post‐test scores of new or novice users, moderate users, and expert users at the end of a college level introductory computing class

Health care in sedentarising communities: a case study in the Jordan Badia

The World Health Organisation's (WHO) 'Health for All by the Year 2000' (HFA2000) resolution is intended to promote improvements in the equality of health care provision, the basis of which is universal accessibility to basic health care. The Jordanian Government, in accordance with HFA2000, has attempted to improve accessibility in rural communities by providing an extensive network of basic rural health clinics which are intended to be acceptable and accessible to all communities. Within this context, the research considers two interrelated themes. The first theme considers changes in health and illness practices, and particularly the wide-scale and rapid acceptance of modern medical services at the same time as `traditional' Arabic medicines are becoming relatively unimportant in the north east Badia. This study highlights the connections between health and illness discourses in the past, Bedu social values, and the wider social economic milieu, and how these are reflected in the forms and use of Arabic medicines. The literature widely assumes that culture, `traditional' social structures and attitudes inhibit the acceptance and effective utilisation of modern medical services, and that education, for example, is a key way to address this problem. This research engages with this assumption by evaluating the significance of social values, education and health awareness programmes, knowledge of health issues, together with socio-economic changes in explaining the acceptance of modern medicine and the adoption of preventative medicine and practices, together with changing attitudes to children's health. The second key theme of this research is to examine the extent to which basic government health services have been made accessible to the nomadic, sedentarising and settled rural population of the north east Jordan Badia, and specifically their children, a particularly vulnerable group, and whether this explains patterns of health and illness behaviour. To this end, the importance of geographical, organisational (health service), economic and social factors is evaluated in explaining variations in accessibility mediating the effective utilisation of these services at family level

Disassembly modeling and analysis.

The analysis of the disassembly of products for recycling and reuse is important because of the increasing demands for environmentally conscious design and manufacturing that are coming from consumers and governments. An economic analysis is essential since economics is the driving factor that causes this disassembly in many situations. Economic analysis of disassembly is also important due to the costs of potential legislation to regulate recycling. This research proposes a method for the modeling and analysis of disassembly for reuse and recycling. This methodology is economically based and can be used to generate the profit-optimizing disassembly plan to predict the circumstances of disassembly in a free market and to determine which parts or components of a product are economically feasible to recover. The methodology is the first of its kind to be able to consider products of the greatest degree of complexity. An application of the methodology to study the recycling of automobiles is presented. This case study considers not only specific vehicles, but also the potential for changes in the economic market or in the design of vehicles.Dept. of Industrial and Manufacturing Systems Engineering. Paper copy at Leddy Library: Theses & Major Papers - Basement, West Bldg. / Call Number: Thesis1996 .S7. Source: Masters Abstracts International, Volume: 37-01, page: 0338. Adviser: Michael H. Wang. Thesis (M.A.Sc.)--University of Windsor (Canada), 1996

Enhanced hydrogen storage in Ni/Ce composite oxides

The properties of dried (but not calcined) coprecipitated nickel ceria systems have been investigated in terms of their hydrogen emission characteristics following activation in hydrogen. XRD and BET data obtained on the powders show similarities to calcined ceria but it is likely that the majority of the material produced by the coprecipitation process is largely of an amorphous nature. XPS data indicate very little nickel is present on the outermost surface of the particles. Nevertheless, the thermal analytical techniques (TGA, DSC and TPD-MS) indicate that the hydrogen has access to the catalyst present and the nickel is able to generate hydrogen species capable of interacting with the support. Both unactivated and activated materials show two hydrogen emission features, viz. low temperature and high temperature emissions (LTE and HTE, respectively) over the temperature range 50 and 500 °C. A clear effect of hydrogen interaction with the material is that the activated sample not only emits much more hydrogen than the corresponding unactivated one but also at lower temperatures. H2 dissociation occurs on the reduced catalyst surface and the spillover mechanism transfers this active hydrogen into the ceria, possibly via the formation and migration of OH− species. The amount of hydrogen obtained (0.24 wt%) is 10× higher than those observed for calcined materials and would suggest that the amorphous phase plays a critical role in this process. The affiliated emissions of CO and CO2 with that of the HTE hydrogen (and consumption of water) strongly suggests a proportion of the hydrogen emission at this point arises from the water gas shift type reaction. It has not been possible from the present data to delineate between the various hydrogen storage mechanisms reported for ceria

Tax evasion and exchange equity: a reference-dependent approach

The standard portfolio model of tax evasion with a public good produces the perverse conclusion that when taxpayers perceive the public good to be under-/overprovided, an increase in the tax rate increases/decreases evasion. The author treats taxpayers as thinking in terms of gains and losses relative to an endogenous reference level, which reflects perceived exchange equity between the value of taxes paid and the value of public goods supplied. With these alternative behavioral assumptions, the author overturns the aforementioned result in a direction consistent with the empirical evidence. The author also finds a role for relative income in determining individual responses to a change in the marginal rate of tax