510 research outputs found
A case study: the development of Stephanie's algebraic reasoning
No full textThis research provides an analysis of the mathematical growth and development of one student, Stephanie, as she worked on early algebra tasks during her eighth-grade year as part of a teaching experiment. Stephanie was among the original participants in a longitudinal study which investigated how students develop mathematical ideas under conditions that fostered independent exploration, reasoning, and justification of ideas (Maher, 2005). A qualitative approach based on the analytical model described by Powell, Francisco, and Maher (2003), was taken in analyzing videotape data from the Robert B. Davis Institute of Learning archive, along with student work. Seven task-based interview sessions were analyzed, spanning a six month period, beginning from November 8, 1995 to April 17, 1996. The research focused on Stephanie’s algebraic reasoning; in particular, how she built an understanding of the binomial theorem and related it to Pascal’s triangle. Stephanie’s representations, her explanations and justifications, and her methods of dealing with obstacles to understanding, were all examined and provided the basis for this research. The analysis shows that Stephanie built her mathematical understanding through the development of multiple representations of concepts and moved fluidly between and among the representations that she organized into ‘symbolic’ and ‘visual’ representations. Symbolic representations included algebraic expressions, combinatorics notation, and Pascal’s triangle while visual representations included drawings, tables, models formed by algebra blocks and other manipulatives, and towers built with unifix cubes. Furthermore, through Stephanie’s explanations and justification of her representations and reasoning in general, she invented strategies to convince herself as well as the researchers that she had fulfilled the requirements of the problem task. When dealing with obstacles to her understanding such as lack of information, or calculating obstacles, Stephanie acquired the use of several heuristic methods in order to overcome them. These included the use of substituting in numbers in order to test a conjecture; returning to basic meaning; drawing diagrams; building models; and considering a simpler problem. Throughout the task-based interviews, Stephanie retrieved knowledge from her earlier problem solving and extended this knowledge to build new ideas, while tackling more challenging problems. In particular, Stephanie mapped the coefficients in the binomial expansion to particular rows in Pascal’s Triangle; she connected these ideas to her problem solving from earlier work in the elementary grades. The findings are relevant to the timing and method of early algebraic instruction in schools.Ed.D.Includes bibliographical referencesby Eman Y. Aboelnag
Perancangan Web Jasa Penyewaan Sound System Pada Eman Sounds: Penyewaan, Sound System, Web
Get PDFEman Sounds is a business venture in the field of sound system rental services. The Eman sounds does not currently have a website application. The leasing service transaction system is still done conventionally, where if anyone wants to rent a sound system for a wedding or other official event can come directly to the Eman Sounds to see and rent it. For transaction reports sound system rental services are still recorded with paper so as to allow for data loss and errors in recording transactions. The purpose of this study is that the author will design a web sound system rental service for Eman Sounds so that it is expected to simplify the process of leasing transactions and making rental reports. The author uses the system development method, namely the waterfall model for this study. The use of PHP and HTML programming languages the author uses to create web rental services and MYSQL as the database. The results of this study are expected that with a web design sound system rental service can help Eman Sounds in the process of managing rental transactions and reports
D04. Department of Pharmaceutics and Drug Delivery
Get PDFCorresponding author (Pharmaceutics and Drug Delivery): Eman Ashour, [email protected]://egrove.olemiss.edu/pharm_annual_posters/1026/thumbnail.jp
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The principle of non-refoulement under the European Convention on Human Rights and the United Nations Convention Against Torture and Other Cruel, Inhuman or Degrading Treatment or Punishment /
No full textIn this study, Eman Hamdan examines the protection against refoulement under the European Convention on Human Rights and the UN Convention against Torture, with the aim to determine which of those Conventions affords better protection for international protection seekers. Hamdan explores the scope and content of the principle of non-refoulement under both Conventions and the application of the principle to the immigration control measures and the extraordinary rendition operations. The author provides a comprehensive and comparative analysis of the case-law of both the European Court of Human Rights and the UN Committee against Torture on the procedural and substantive aspects of the principle of non-refoulement, in order to help practitioners to determine which of these human rights treaty bodies is more favorable for their specific non-refoulement case. This book was chosen to participate in the Professor Walther Hug Prize 2014-2015, which is a prize for the best legal researches in Switzerland for each academic year
Predicción probabilística de corto plazo en generación eólica
Get PDFA través de este proyecto se describe el uso del clasificador del K n-ésimo vecino más cercano KNN y un estimador del kernel con el fin de predecir la potencia eólica del viento. El modelo es capaz de predecir valores de la potencie eólica generada a la salida de la granja con una antelación de hasta 48h. Los datos usados para el estudio de caso tienen una resolución por cada hora. Estos datos fueron obtenidos de 10 granjas ubicadas en Australia, a dos distintas alturas: 10m y 100m. El modelo desarrollado es un modelo de un único paso. En la primera Fase, el KNN es usado para filtrar los datos. Una vez los datos han sido filtrados y normalizados, el modelo predice escenarios de generación a través del estimador del kernel. Finalmente, algunos indicadores de desempeño son usados para medir los resultados obtenidos respecto del valor real, tales como: EM, EMAN, EPMA y DEE.Abstract: This project describes the use of KNN classifier with Kernel Density Estimation (KDE) models to forecasting the wind power. This approach is used to predict hourly values of wind power for horizons of up to 48h. The data used is hourly observation from 10 wind farms at two different heights, 10m and 100m, in Australia. This approached is a one-stage method where first a KNN classifier is applied to the raw data to clean it. Once the dataset has been cleaned and normalized, the forecast of the normalized wind power is calculated using KDE models. MAE, MAPE and SDE performance indices are used to find the performance of this model.Maestrí
Isolation and identification of oil degrading bacteria from oil contaminated soil, 2015
No full textOil spills are a universal threat impacting local, national and world communities alike. Bioremediation that is natural, efficient, economical and safe is the best solution for protecting the environment from oil related damages. In this study, motor oil degrading bacteria were isolated from oil-contaminated soil samples from a suburban Atlanta, Georgia community. Mineral salt broth containing 1 Ow-40 motor oil as the sole carbon source was used to isolate motor oil degrading bacteria. Motor oil tolerant and metabolizing bacteria were identified using morphological and biochemical tests. Two bacterial isolates were then tested for their tolerance varying concentrations of diesel and kerosene oils for comparison with motor oil consumption. Observed results suggest that the isolated bacteria from oil contaminated soil possess abilities to metabolize motor oil, kerosene and diesel. Knowledge of the tolerance ranges of the isolated bacteria can indicate their potential to be of use in the remediation of terrestrial petroleum oil spills in a manner that is natural, economical, quick and efficient
Nations without nationalisms: on Palestinian and American Indian literary imaginations
Get PDF“Nations without Nationalisms: On Palestinian and American Indian Literary Imaginations” approaches settler colonialism as a story that exhibits complex identity politics, competing concepts of humanity, and overlapping narratives of diaspora and trauma. It is also a story that is constantly disputed by Indigenous presence and decolonial and international movements of resistance. I explore indigeneity as a category of identification to better understand forced and voluntary migrations and what constitutes the concepts of settler, refugee, and migrant in the United States and Israel. Building on an interpretive framework that situates Indigenous theory alongside Palestine studies, my dissertation has two major arguments. First, I critique settler nationalism and approach the United States and Israel as exhibiting a discursive allegiance to each other and, more broadly, to European principles of nationhood. I develop this analysis by drawing a transnational web of literary exchanges in the nineteenth century that includes Emma Lazarus, George Eliot, Mordecai Noah, Theodor Herzl, and Israel Zangwill. Second, I argue that Indigenous nations, as land-based collectives that have functioned without statehood, intervene in popular assumptions that the nation-state is the only form of legitimate belonging. Here, I analyze expressions of indigeneity in Palestinian and American Indian writings towards conceptualizing “Indigenous literature” as a global literary genre with shared literary patterns and significant political interventions. Approaching this genre comparatively, I analyze representations of being, land, and political movement as an Indigenous literary modulation of character, setting, and plot, and as they unfold in the writings of Mahmoud Darwish, Samih Al-Qasim, Suheir Hammad, Steven Salaita, Leanne Simpson, and LeAnne Howe. As it exists today, U.S. scholarship can benefit from incorporating a global narrativization of indigeneity and ongoing colonialisms and attending more closely to their cultural nuances. Furthermore, learning from Palestine as a microcosmic example of modern-day settlement, exile, and ethnic conflict can help us understand the precarious relationship between displacement and nationalism in the U.S. and in many other parts of the world.Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2022-08-01The student, Eman Ghanayem, accepted the attached license on 2020-07-10 at 02:25.The student, Eman Ghanayem, submitted this Dissertation for approval on 2020-07-10 at 02:58.This Dissertation was approved for publication on 2020-07-10 at 15:53.DSpace SAF Submission Ingestion Package generated from Vireo submission #15556 on 2020-10-02 at 15:50:12Made available in DSpace on 2020-10-07T22:49:51Z (GMT). No. of bitstreams: 3
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Comparative Analysis of Japanese Folklore Ama No Hagoromo and Indonesian Folklore Jaka Tarub
No full textThis research focuses on the Comparative Analysis of Japanese Folklore Ama No Hagoromo and Indonesian Folklore Jaka Tarub. The author chose this title because the author is interested in Japanese folktales Ama No Hagoromo and Jaka Tarub which are two folktales that come from different countries, but have almost the same story structure. These two folktales have a similar theme, which tells the main character who is an ordinary young man, but gets a wife who is an angel from heaven. In the end, the young man had to lose his wife because his lie was known by his wife. This research method uses a qualitative method with a structural approach to find out the similarities and differences in themes, characters, settings, plot, and mandate contained in the two folktales. After conducting the analysis, the author will compare the intrinsic elements of the two stories using the comparative literature method. The results of this study show that there are similarities in the theme, namely both have a major theme, namely love at first sight and the minor theme is crime (stealing), in the characters, namely both have main characters and additional characters, in the plot, namely both have a forward plot, in the setting, namely both have a place setting and time setting, and in the mandate, namely both the message conveyed must be honest. The basic differences in the two folktales to be compared in local wisdom are in the Ama No Hagoromo folktale the angels who appear are eight while in the Jaaka Taarub folktale the angels who appear are seven, in the Ama No Hagoromo folktale the angel's shawl is white while in the Jaka Tarub folktale the angel's shawl is red. The conclusion of this research is that folktales are not only used as entertainment and are only seen as oral traditions of children's bedtime. However, it can try to understand the positive values obtained as learning in everyday life.127 PagesSkripsi Sarjan
Assessing citizen satisfaction indicators for urban public services to enhance quality of life in Sharm el-Sheikh
No full textThe quality of urban life is a crucial area of urban studies, encompassing social, environmental, and economic aspects. Sharm el-Sheikh, a popular tourist destination in Egypt, faces challenges in balancing tourism development with citizen satisfaction with public services. This study aimed to assess citizen satisfaction with key urban services in Sharm el-Sheikh and identify areas for improvement. A survey was conducted by the South Sinai Urban Observatory, employing stratified sampling to ensure a representative sample across demographics. The survey utilized a combination of closed-ended questions with a five-point Likert scale and an open-ended question for additional feedback.The analysis revealed that citizens expressed satisfaction with road and traffic services, government office services, the City Council, and security services. However, dissatisfaction was also identified in areas such as educational services, access to qualified doctors, the sanitation system, the availability of safe drinking water, and cultural services.Based on these findings, the study recommends that decision-makers in Sharm el-Sheikh prioritize addressing these areas of lower satisfaction. Regularly conducting citizen satisfaction surveys and fostering trust between citizens and the government are crucial for ongoing improvement in urban and tourism services, ultimately enhancing the city's overall quality of life
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