E-Learning Works - Exactly How Well Depends on its Unique Features and Barriers

Key Findings: E-learning is comparable to traditional teacher-led classroom instruction in terms of effectiveness. E-learning has specific features that may influence learning: content, immersion, interactivity, and communication. Barriers to e-learning adoption include fraud and cheating, digital divides and their impact on low income and underprepared students, and cost issues

E-Learning in Postsecondary Education

Over the past decade postsecondary education has been moving increasingly from the class room to online. During the fall 2010 term 31 percent of U.S. college students took at least one online course. The primary reasons for the growth of e-learning in the nation\u27s colleges and universities include the desire of those institutions to generate new revenue streams, improve access, and offer students greater scheduling flexibility. Yet the growth of e-learning has been accompanied by a continuing debate about its effectiveness and by the recognition that a number of barriers impede its widespread adoption in higher education

Self-Assessments of Knowledge: Where Do We Go From Here?

[Excerpt] In this paper, we argue that there remain several unanswered questions surrounding self-assessments of knowledge that must be addressed before we can reach a more definitive conclusion on the viability of these measures. The answers to these questions may provide further evidence that self-assessments should not be used as an indicator of learning or they may serve to qualify the conditions under which self-assessments can be used with reasonable confidence. In either case, addressing these issues is critical if work in this area is to influence how researchers and practitioners evaluate trainees’ learning

Contemporary Slavery and International Law

In this essay, the definition of contemporary slavery is derived from Kevin Bales in his book, Disposable People, which states that contemporary slavery is “The complete control of a person, for economic exploitation, by violence, or the threat of violence.” Contemporary slavery includes the slave labor of men, women, and children, forced prostitution, pornography involving both children and adults, the selling of human organs, serfdom, debt bondage, and the use of humans for armed conflict

Local institutions and Natural Resource Management

As researchers and policy-makers confront the challenges of and opportunities for improving natural resource management, increasing attention is being given to the dynamics of coupled natural-human systems. Interdisciplinary study of these coupled systems has generated considerable research and management innovations. Among these are more intensive research of the emergence and behavior of local institutions and consideration of the potential for voluntary and/or collaborative approaches to supplement conventional natural resource policy and management approaches. Front and center in this line of research are studies of local institutional responses to common pool resource management issues. Over time, this productive line of research is encouraging greater integration of insights across social science fields and identification of systematic patterns in research findings. Responding to such encouragement, this research blends insights from collective action theory, institutional rational choice and the institutional analysis and development (IAD) framework to investigate the distribution and success of resource-based organizations. Moreover, our research makes a unique contribution to this literature by considering the spatial aspects of these institutions' formation, behavior and success. Lake associations are an interesting class of resource-based organizations. These local, lake-centered institutions strive to address management issues using informal and voluntary strategies. Lake associations are most common in lake-rich states, including Minnesota, Michigan, Wisconsin, New York, New Hampshire and Maine. The objectives of these groups vary from narrow (private road maintenance) to broad (watershed health). These organizations allow for lake-centered boundaries including multiple jurisdictions, provide a voice to seasonal property owners, and resolve some issues related to coordination, property rights, and transaction costs. The numerous and diverse lake associations of Maine are the focus of our empirical work. The primary research objective of this analysis is to develop an integrated empirical modeling framework of lake association presence and lake management success. To fulfill this objective, we examined the relative performance of empirical econometric models that ignore and address potential sample selection bias. Because we only observe measures of lake association management success on lakes that have a lake association, the sample is non-random. In our empirical work, entry into the lake association management success sample is further complicated by our reliance on survey data to describe management behavior and performance. A broad secondary research objective is to continue exploring the extent to which the Institutional Development Analysis (IAD) framework can be used to explain the distribution and behavior of Maine lake associations. We assembled an extensive spatial database describing natural and human features of 2,602 Maine lakes (Maine's great ponds; > 10 acres in size) to support this analysis. We integrated this extensive database with a smaller survey-based database describing lake association behavior and natural resource management success. Data describing the distribution and success of lake associations were drawn from non-government organization, federal and state agency databases and primary survey data collected to describe social and economic characteristics of Maine lakes. We captured additional lake and association attributes by manipulating various state and federal GIS databases and creating primary spatial databases. Results to date reveal support for the IAD theoretical framework in describing factors influencing the presence of lake associations. These results offer guidance on how to better integrate the informal approaches of local institutions with more formal, regional government-based management approaches. By understanding where local institutions are likely to form and what issues they are best suited to address, state and federal government agencies can better work with local organizations to address the complexities of natural resource management. Results explaining variation in natural resource management success and the potential gains from an integrated model of presence and success are less robust and are constrained by limited available data describing management behavior and success.local institutions, natural resource management, institutional economics, lake associations, Resource /Energy Economics and Policy,

Towards a Better Understanding of Coastal Cliff Erosion in Waitemata Group Rock; Auckland, New Zealand.

The soft sedimentary deposits of the Waitemata Group which outcrop on the eastern coastline of the Auckland region are a coastal cliff erosion hazard. The determination of the rate that these cliffs erode for hazard zonation purposes still requires research. A database has been collated of a range of structural, geological, geomorphic and climate parameters from 16 representative cliff sites in order to statistically assess what parameters influence cliff erosion and why erosion rates vary within the relatively uniform geology. Four different lithological units have been defined: sandstone beds of turbidites; sandstone beds of densites (contain rip-up clasts); sand to gravel beds of debrites; and siltstone beds. Cliff rock has very weak to weak intact rock strength; apertures of 0.1 to 15 mm; infill types are soft clay and grit, and hard calcite and iron; spacing of discontinuities are smaller in siltstone beds (≥ 5 mm), and up to 5 m in sandstone and debrite beds; bedding and fault planes are continuous, joints are non-continuous; block size is dictated by bed thickness and non-continuous joints. Shore platform widths were used to determine long-term erosion rates which range from 1.2 to 53.0 mm y-1. Platform morphologies are either sloping or horizontal or are a combination of both. Higher platform benches found at some sites are considered to be the result of a higher period of sea-level or are high-tide benches. Intact and rock mass strength increases northwards. Cliff heights are 8 to 38 m; cliff angles are 51 to 79 . Conditions for sporadic planar and wedge failure were determined at some sites; frittered siltstone and low durability sandstone allow smaller-scale, continual erosion. Castor Bay, Army Bay, Waiwera Beach and Leigh Marine Reserve have the lowest rock mass quality. Musick Point, Narrowneck Beach and Waiake Bay have good rock mass quality. A conceptual model for coastal cliff erosion has been developed for Waitemata Group coastal cliffs, based on the dominant processes that act on the cliffs determined from statistical analysis (student t-test, correlation and regression) and field observations. The primary factor for cliff erosion is bed dip, whereby seaward dipping beds have higher erosion rates than landward dipping beds. The secondary factors for cliff erosion include: the intact and rock mass strength of the rock; the rock mass quality; strength of the siltstone beds; strength and structure of the sandstone beds; and orientation of the bedding planes with respect to the cliff face. Shear stresses are enhanced when beds dip seaward and thus shear failure along continuous surfaces is achievable. When beds dip landward the influence of shear stresses along bedding planes, and their contribution to the removal of individual blocks of rock, is severely inhibited resulting in reduced rates of erosion. There is no relationship between cliff height and erosion rates and cliff heights are mainly controlled by the pre-existing landscape. Cliff angle is controlled by the proportion of sandstone and siltstone (whereby lower cliff angles are more siltstone-dominated), rock mass strength and weathering. Erosion rates do vary in Waitemata Group rock of the Auckland region because of the variation in structural and geomorphic conditions of the cliff, most strongly controlled by the dip angle of bedding planes

The development of deviant behavior in adolescents : the influence of student characteristics and school climate.

This dissertation is an investigation of the influence of individual characteristics and school climate on the participation in deviant behaviors. The literature review provides a review of adolescent development and theories that guide the understanding of the different social and environmental factors that influence an adolescent\u27s participation in deviant behavior. Additionally, the impact of adolescent participation in deviant behavior will be reviewed. Using data gathered from Middle and High School students who completed surveys administered by a large, Midwestern, urban school district, the influence of gender, ethnicity, age, school level free/reduced lunch status, school level performance on standardized testing, and school level perception of school climate on the participation in risky behaviors were examined. For the purpose of this study, 2 different samples were used. The first sample included 15,299 Middle School students and16, 390 High School students. For the second sample, the student reported data was aggregated to the school level representing each of 42 schools. One multiple regression was used to examine the extent to which student level data of gender, ethnicity, and age predicted student participation in risky behaviors. Another multiple regression examined the extent to which student data aggregated to the school level of school level status (middle or high school), school level perception of school climate, school performance on standardized testing, and free/reduced lunch status predicted students\u27 self report of risky behaviors. Results reflected that gender, ethnicity, and age were significant predictors of participation in risky behaviors such that males more frequently participated in risky behaviors than females, whites more frequently participated in risky behaviors than racial and ethnic minorities, and older students more frequently participated in risky behaviors than younger students. Regarding results at the school level, student data aggregated to the school level of school level status (middle or high school), school level perception of school climate, school performance on standardized testing, and free/reduced lunch status predicted students\u27 self report of risky behaviors, these results were mixed. School level status was shown to be the only significant predictor of participation in risky behaviors. However, because of high correlations between the free/reduced lunch status and standardized test scores variables a second set of analyses was conducted in which standardized test scores were removed. This regression equation reflected that school level status and school climate were significant predictors of participation in risky behaviors. These results are consistent with prior research

Facilitating Adoption of OERs in the Classroom with the Open Access Course Reserves

With the Open Access Course Reserves, a place to collect and share course specific OA reading lists, faculty seeking to include OER in their courses can see how other teachers have replaced pricey textbooks with fully open reading lists. Librarians at the MGH Institute of Health Professions built the Open Access Course Reserves, a publicly available, curated repository that provides ready-made reading lists of free, copyright compliant (open access when possible), educational materials. The materials are selected to match typical syllabi and textbook contents and organized by discipline and course. The goal of the project is to create a place for faculty of any higher education course from anywhere in the world to find course packs to replace traditionally published textbooks and therefore reduce the financial burden on their students. The 10 minute session will primarily be a demonstration of the Open Access Course Reserves. It will include an explanation of the creation of the repository as well as its features and potential value to faculty and institutions. Attendees will be asked for their feedback and to share any ideas they may have about how they will potentially use this new tool. This was an IMLS grant-funded project

Senior Recital: Jessica Bell

A senior recital featuring Jessica Bell and Eric Jenkins.https://digitalcommons.kennesaw.edu/musicprograms/2407/thumbnail.jp

Effect of stress and temperature on the optical properties of silicon nitride membranes at 1550 nm

Future gravitational-wave detectors operated at cryogenic temperatures are expected to be limited by thermal noise of the highly reflective mirror coatings. Silicon nitride is an interesting material for such coatings as it shows very low mechanical loss, a property related to low thermal noise, which is known to further decrease under stress. Low optical absorption is also required to maintain the low mirror temperature. Here, we investigate the effect of stress on the optical properties at 1,550 nm of silicon nitride membranes attached to a silicon frame. Our approach includes the measurement of the thermal expansion coefficient and the thermal conductivity of the membranes. The membrane and frame temperatures are varied, and translated into a change in stress using finite element modeling. The resulting product of the optical absorption and thermo-optic coefficient (dn/dT) is measured using photothermal common-path interferometry