Hermite Interpolation in the Treecode Algorithm

In this thesis, a treecode implementing Hermite interpolation is constructed to approximate a summation of pairwise interactions on large data sets. Points are divided into a hierarchical tree structure and the interactions between points and well-separated clusters are approximated by interpolating the kernel function over the cluster. Performing the direct summation takes O(N^2) time for system size N, and evidence is presented to show the method presented in this paper scales with O(N logN) time. Comparisons between this method and existing ones are made, highlighting the relative simplicity and adaptability of this process. Parallelization of the computational step is implemented by splitting the data set into pieces whose interactions are independently calculated on separate CPU cores. Additionally, steps are taken to make this approximation more efficient, allowing greater precision to be achieved without increasing completion time. Results are presented for the 3D 1/r and Screened Coulomb Potential exp(-kr)/r kernels on random data sets in size up to 10^7

Hermite Interpolation in the Treecode Algorithm

In this thesis, a treecode implementing Hermite interpolation is constructed to approximate a summation of pairwise interactions on large data sets. Points are divided into a hierarchical tree structure and the interactions between points and well-separated clusters are approximated by interpolating the kernel function over the cluster. Performing the direct summation takes O(N^2) time for system size N, and evidence is presented to show the method presented in this paper scales with O(N logN) time. Comparisons between this method and existing ones are made, highlighting the relative simplicity and adaptability of this process. Parallelization of the computational step is implemented by splitting the data set into pieces whose interactions are independently calculated on separate CPU cores. Additionally, steps are taken to make this approximation more efficient, allowing greater precision to be achieved without increasing completion time. Results are presented for the 3D 1/r and Screened Coulomb Potential exp(-kr)/r kernels on random data sets in size up to 10^7

The Role of Internalized Homonegativity in the Faith and Psychological Health of Lesbians

Among lesbians, faith-based beliefs and behaviors may be associated with negative psychological health due to the interplay between religious and sexual identities. The present study examined health outcomes, faith-based beliefs (views of God as loving and controlling), faith-based behaviors (personal spiritual practices, religious activities), and internalized homonegativity in a sample of 225 self-identified lesbians. We hypothesized that internalized homonegativity would moderate the relationship between health outcomes and faith-based beliefs and behaviors among lesbians. Generally, results indicated that some faith-based beliefs and behaviors were related to negative health outcomes among lesbians with higher levels of internalized homonegativity, but among those with lower levels of internalized homonegativity, the negative associations with health were mitigated

Rescue, rehabilitation, and release of marine mammals: An analysis of current views and practices.

Stranded marine mammals have long attracted public attention. Those that wash up dead are, for all their value to science, seldom seen by the public as more than curiosities. Animals that are sick, injured, orphaned or abandoned ignite a different response. Generally, public sentiment supports any effort to rescue, treat and return them to sea. Institutions displaying marine mammals showed an early interest in live-stranded animals as a source of specimens -- in 1948, Marine Studios in St. Augustine, Florida, rescued a young short-finned pilot whale (Globicephala macrorhynchus), the first ever in captivity (Kritzler 1952). Eventually, the public as well as government agencies looked to these institutions for their recognized expertise in marine mammal care and medicine. More recently, facilities have been established for the sole purpose of rehabilitating marine mammals and preparing them for return to the wild. Four such institutions are the Marine Mammal Center (Sausalito, CA), the Research Institute for Nature Management (Pieterburen, The Netherlands), the RSPCA, Norfolk Wildlife Hospital (Norfolk, United Kingdom) and the Institute for Wildlife Biology of Christian-Albrects University (Kiel, Germany).(PDF contains 68 pages.

Discipling with purpose : best practices in light of God\u27s telos for discipleship

https://place.asburyseminary.edu/ecommonsatsdissertations/2514/thumbnail.jp

Arctic Seas: Currents of Change, An International Symposium

The International Year of the Ocean (IYO), declared for 1998 by UNESCO and the Intergovernmental Oceanographic Commission (IOC), was a call to the world to examine the state of the planet's oceans, evaluate our collective impact on these critical environments, and take steps to protect them to ensure the quality of life for future generations. While the initiative was successful in rallying the attention of a large segment of the population, interest in the Arctic seas was disproportionately low compared with that in areas with large human coastal populations. To redress this imbalance, a symposium was held on 21-24 October 1998 in Mystic, Connecticut, USA, convened by the Sea Research Foundation and Mystic Aquarium, to bring attention to the issues, both scientific and sociopolitical, that bear on the status and future of the Arctic Ocean and adjacent waters. The IOC endorsed the symposium as an event in support of the IYO initiative. The papers comprising this special issue of Arctic represent some of the scientific program presented over those three days. ... The program consisted of five thematic sessions: Climate, Ice, and Ocean; Productivity; Ecology of Marine Mammals; Contaminants; and Human Resources and Development. The thematic undercurrent linking these topics was the examination of changing conditions in the Arctic seas. Change in itself is not necessarily alarming. It shapes the diversity of life on this planet and gives us insight into the balance of natural processes. But what can we predict about the consequences of the changes we are observing: Are the changes due to human presence and activity, local or more distant? And are their consequences something that we must attempt to redress? ..

Behavioral Analysis of Entrapped Condensate in a Vehicle Charge-Air-Cooler

The effect of the Weber number and inclination angle on the fraction carryover of the condensation found in a vehicle charge-air-cooler were experimentally investigated under steady state conditions. The validity of describing the fraction carryover in terms of the Weber number, using the heat exchanger fin spacing as the significant length, was explored. Condensate entrainment testing was performed at multiple heat exchanger face velocities and the fraction of condensate that is blown through with respect to the total amount was recorded for angles ranging between 0 and 50 degrees. A positive agreement between the results obtained and those from literature was found for the use of the Weber number as the governing parameter for heat exchanger condensate entrainment. A predictive equation valid between charge-air-cooler angles of 0 and 40 degrees was obtained to describe the expected entrainment that uses the Weber number, and a critical Weber number as input. Supplementary testing was also performed to observe the physical effects of a shearing air flow on a liquid bridge suspended between two plates. The observational testing showed that a liquid bridge may react in four different ways to the airflow, depending on the velocity

Belugas and Narwhals: Application of New Technology to Whale Science in the Arctic

... In the course of the research reported in this issue, there have been few observations of tagged whales after release, and this may be unavoidable, given the remoteness, harshness, and darkness of Arctic field conditions. However, on those occasions when there has been follow-up, the results have been informative and useful. For example, observations of scarred tissue on the backs of previously tagged white whales appeared to confirm the supposition that tagging has no lingering effect on animal health or behaviour .... Changes in blood constituents of animals recaptured within a few weeks after tagging ... are about what one would expect, given that some tissue damage and stress are inevitably associated with capture and tagging procedures. ... The ten studies published in this special issue are pieces of a much larger puzzle. Stock- and even site-specific studies have been typical for beluga research, largely because of management concerns. Findings, therefore, are often reported in what seems like a fragmentary manner, and this is reflected in the somewhat miscellaneous nature of the present compilation as well. Eventually, we expect a unified picture to emerge for both the beluga and the narwhal. Until it does, this collection of papers should be seen as one more in a series of benchmarks, each of which helps to elucidate what is known about the whales, the tools available for studying them, and questions that remain to be addressed. ..

Senior Recital: Michael St. Aubin, Voice; Valen Pao, Piano; November 18, 2022

Kemp Recital HallNovember 18, 2022Friday Evening7:00 p.m