Spatial bias correction for sporadic meteors photographed in New Mexico

Spatial bias correction for sporadic meteors photographed in New Mexic

Phloretin and Phlorizin Derivative Containing Compounds

Compounds including phloretin and/or phlorizin derivatives coupled to an undigestible and non-absorbable matrix are provided. The compounds have pharmacological efficacies. They inhibit sugar uptake from the intestine and may be used in composition form in methods for treating diabetes and for promoting weight loss. A method for the manufacture of these compounds and a novel intermediate phlorizin derivative for making these compounds are also disclosed

Effect of on- and off-ramps in cellular automata models for traffic flow

We present results on the modeling of on- and off-ramps in cellular automata for traffic flow, especially the Nagel-Schreckenberg model. We study two different types of on-ramps that cause qualitatively the same effects. In a certain density regime one observes plateau formation in the fundamental diagram. The plateau value depends on the input-rate of cars at the on-ramp. The on-ramp acts as a local perturbation that separates the system into two regimes: A regime of free flow and another one where only jammed states exist. This phase separation is the reason for the plateau formation and implies a behaviour analogous to that of stationary defects. This analogy allows to perform very fast simulations of complex traffic networks with a large number of on- and off-ramps because one can parametrise on-ramps in an exceedingly easy way.Comment: 11 pages, 9 figures, accepted for publication in Int. J. Mod. Phys.

The pole-sitter mission concept : an overview of recent developments and possible future applications

The paper provides a survey of novel mission concepts for continuous, hemispheric polar observation and direct-link polar telecommunications. It is well known that these services cannot be provided by traditional platforms: geostationary satellites do not cover high-latitude regions, while low- and medium-orbit Sun-synchronous spacecraft only cover a narrow swath of the Earth at each passage. Concepts that are proposed in the literature are described, including the pole-sitter concept (in which a spacecraft is stationary above the pole), spacecraft in artificial equilibrium points in the Sun-Earth system and non-Keplerian polar Molniya orbits. Additionally, novel displaced eight-shaped orbits at Lagrangian points are presented. For many of these concepts, a continuous acceleration is required and propulsion systems include solar electric propulsion, solar sail and a hybridisation of the two. Advantages and drawbacks of each mission concept are assessed, and a comparison in terms of high-latitude coverage and distance, spacecraft mass, payload and lifetime is presented. Finally, the paper will describe a number of potential applications enabled by these concepts, focusing on polar Earth observation and telecommunications

Motivating Students Using Positive Reinforcement

The purpose of my paper was to explore behavior modification by using rewards to encourage positive, observable behavior changes in my students. Teachers have an opportunity to positively impact their students\u27 behavior, in addition to their education. I wanted to see if the idea of behavior modification was an effective method for teaching and encouraging students age-appropriate behaviors and social skills. I researched the use of rewards and positive reinforcement with regards to behavior modification by creating a classroom behavior management plan called Marbles for Manners . It was my intention that this reward system would positively reinforce students who used appropriate manners while interacting with others. For the purpose of this study, manners that could be objectively measured through verbal phrases such as please , thank you , excuse me , and I\u27m sorry were assessed

Compositions and Method of Treatment for Sickle Cell Anemia

The invention provides a new composition and method for the treatment of sickle cell anemia. . . . To see the remainder of this abstract, please download this patent

Exploring motives for participation in a perpetual easement program: Going beyond financial incentives

Private land conservation has become an important element of the global conservation portfolio. Often, landowners are encouraged to participate in private land conservation with financial incentives. However, there is a concern that financial incentives may be limited given the ephemeral nature of funding. Financial incentives also have the potential to crowd-out participation from landowners motivated by altruistic factors rather than financial ones. These concerns underscore the importance of understanding drivers of participation in conservation programs. While there is a plethora of studies examining motivations for participation in term-limited conservation programs, there are far fewer that look at landowners' reasons for participating in perpetual programs. We examined landowners' non-financial motivations for participation in a United States Fish and Wildlife perpetual easement program using several analytical approaches. We first looked at correlations between the likelihood of participation in the easement program and survey respondent's beliefs, values, norms, and perceived behavioral control using a Bayesian regression analysis. Next, using a cluster analysis we segmented our landowner sample into two groups, tested for differences between the group theoretical constructs, and looked for patterns in geographic distributions of the clusters. Our results suggested that individuals who accepted responsibility for habitat protection and recognized habitat threats were more likely to have participated in the easement program. We did not find significant demographic patterns in our cluster analysis but did see differences across the tested theoretical constructs of theory of planned behavior and value-belief norm theory. Further exploration of variation revealed potential for conservation opportunities and allowed us to make recommendations for future policy actions

Novel mission concepts for polar coverage : An overview of recent developments and possible future applications

The paper provides a survey of novel mission concepts for continuous, hemispheric polar observation and direct-link polar telecommunications. It is well known that these services cannot be provided by traditional platforms: geostationary satellites do not cover high-latitude regions, while low- and medium-orbit Sun-synchronous spacecraft only cover a narrow swath of the Earth at each passage. Concepts that are proposed in the literature are described, including the pole-sitter concept (in which a spacecraft is stationary above the pole), spacecraft in artificial equilibrium points in the Sun-Earth system and non-Keplerian polar Molniya orbits. Additionally, novel displaced eight-shaped orbits at Lagrangian points are presented. For many of these concepts, a continuous acceleration is required and propulsion systems include solar electric propulsion, solar sail and a hybridisation of the two. Advantages and drawbacks of each mission concept are assessed, and a comparison in terms of high-latitude coverage and distance, spacecraft mass, payload and lifetime is presented. Finally, the paper will describe a number of potential applications enabled by these concepts, focusing on polar Earth observation and telecommunications