Attractor reconstruction of an impact oscillator for parameter identification

Peer reviewedPreprin

Marian S. James to James H. Meredith (1 October 1962)

https://egrove.olemiss.edu/mercorr_pro/1846/thumbnail.jp

The Management Of Testing In Distance Learning Environments

In 2004 Embry-Riddle Aeronautical University transitioned from proctored examinations for distance learning courses to online examinations that are not proctored. The purpose of this study was to determine if there is a significant difference in the midterm and final examination grades between proctored and non-proctored online examinations. Three courses, MGMT 311, MGMT 210 and ASCI 254, were selected for the study,. The study found that there was a significant increase in the mean scores between the midterm and final examinations. What this study did not examine was the impact of the overall course grades. This needs to be considered in future studies.&nbsp

A study of participation in the Eastern Massachusetts Chapter of National Association of Social Workers

Thesis (M.S.)--Boston Universit

Employment regulation and productivity: is there a case for deregulation?

This paper explores empirically the economic validity of the relatively limited approach to the regulation of employment protection pursued in the UK over the last three decades and within the European Union more recently. It does so by comparing the UK’s manufacturing labour productivity performance with those of three countries – France, Germany and Sweden – that possess more stringent employment protection laws. The findings reveal that while productivity growth in the UK was superior to France and Sweden, it was lower than in Germany. More generally, the study’s findings fail to support the existence of a straightforward negative relationship between regulatory stringency and productivity growth

Interpreting The Learning Styles Of Traditional And Distance Learning Students

The emergence of telecommunication technologies has generated innovative strategies resulting in online education competing for student enrollment.  Learning is no longer restricted by space and time, and has become more reliant on empowerment rather than confinement. This study sought to determine if the use of the Kolb Learning Style Inventory (LSI) could be used to determine which learning style(s) best reflect the traditional learner, and which are representative of the distance learning student. The study placed respondents into one of four styles, depending on how they responded to the Inventory: Diverger, Assimilator, Accommodator, and Converger.  The study then compared responses within and between the groups to test for significance. It found that while there was significance between all of the groups except the Accommodator/Converger, the only group which had significance within was the group with the Assimilator style. &nbsp

Urban Land-use and Traffic Congestion: Mapping the Interaction

The interaction between transport, land-uses and travel patterns produce diverse transportation problems in urban cities with traffic congestion as the most visible manifestation. Traffic congestion is a frequent phenomenon in most cities around the globe. This paper reviews the interaction between land-use traffic congestion through published literature. The objective of this study is to encourage and provide researchers with future research directions in land-use and traffic congestion. For this purpose, a systematic review was performed analysing 45 articles from the year 2010 to 2020 using a descriptive approach. Subsequently, the results of the study show that although the interaction between land-use and traffic congestion has gained currency in developed countries far less is known on this subject in developing parts of the world, though new evidence is steadily accumulating. Consequently, limitations of this work are presented, opportunities are identified for future lines of research. Finally, the conclusion confirms the need for further research addressing the methodological concerns

Regulation of Freshwater Community Structure at Multiple Intensities of Dragonfly Predation

We examined the role played by predaceous dragonfly nymphs, Celithemis fasciata (Odonata: Libellulidae), in the regulation of the community structure of a benthic macroinvertebrate assemblage in Par Pond, an 1100-ha reservoir in South Carolina. Effects of predation intensity on species richness, evenness, and density were evaluated by adding zero, two, four, and eight large dragonfly nymphs (antepenultimate and penultimate instars) to previously sieved (0.85-mm mesh) bottom sediment containing benthic macroinvertebrates. Predator and prey assemblages were then placed in individualfieldmicrocosms that consisted of polyethylene trays surrounded by underwater screens (mesh <2 mm diagonally) and suspended 15 cm belowfloatingplatforms. Twelve replicates of each treatment level were run during each of three 6-wk experimental periods: April-May 1980, August-October 1980, and January-February 1981. In addition, colonization of microcosms by invertebrates was quantified, and samples from natural, unenclosed benthic fauna were collected seasonally along a transect for comparison with experimental assemblages. We tested whether predators enhanced, depressed, both increased and decreased, or had no effect on the complexity of the community structure. The dual effect of predation on community structure is predicted by Connell's "intermediate disturbance hypothesis." Results showed that dragonfly nymphs can significantly influence the structure of the benthic community. However, the results did not show that invertebrate predation is the sole or even the primary regulator of community structure. Species richness was significantly greater at intermediate treatment levels (thus supporting Connell's general hypothesis), but the increase was not great (a range of -10%). The mechanisms by which species richness is maximized at intermediate intensities of predation are not entirely evident, but are probably a combination of prey refuges and nonselective predation with patch switching. In contrast, species evenness, as measured by equitability and by Simpson's index, was greatest at the highest predation level (which does not support the intermediate disturbance hypothesis). Dragonflies appeared to exert a greater influence on prey density than on community diversity

Corporate Strategy in Crisis Management: Johnson & Johnson and Tylenol

This paper focuses on the Tylenol poisonings and the actions J & J employed to recover from this existence-threatening situation. The paper reviews the 1982 case in which Johnson & Johnson literally rewrote the book on crisis management in handling unexpected, catastrophic consumer issues. It demonstrated a high degree of integrity and moral responsibility in its handling of the poisonings. CEO Burke demonstrated decisive leadership at a time when the company needed it the most