302 research outputs found

    A case study: the development of Stephanie's algebraic reasoning

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    This 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

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    Eman 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

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    Corresponding author (Pharmaceutics and Drug Delivery): Eman Ashour, [email protected]://egrove.olemiss.edu/pharm_annual_posters/1026/thumbnail.jp

    Isolation and identification of oil degrading bacteria from oil contaminated soil, 2015

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    Oil 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

    Reply of the Author

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    Nations without nationalisms: on Palestinian and American Indian literary imaginations

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    “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 GHANAYEM-DISSERTATION-2020.pdf: 995068 bytes, checksum: 32b1ee24e3454377264ef821bda3b8d9 (MD5) EmanGhanayem_Dissertation.docx: 269173 bytes, checksum: 2f0f074eb63e804656c4056297713d76 (MD5) LICENSE.txt: 4210 bytes, checksum: 279b6b01caeb68b81b850351b0be3b92 (MD5) Previous issue date: 2020-07-10Embargo set by: Seth Robbins for item 116314 Lift date: 2022-10-07T22:50:13Z Reason: Author requested closed access (OA after 2yrs) in Vireo ETD systemAuthor requested closed access (OA after 2yrs) in Vireo ETD systemLimite

    Comparative Analysis of Japanese Folklore Ama No Hagoromo and Indonesian Folklore Jaka Tarub

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    This 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

    Early Postural Changes in Individuals with Idiopathic Parkinson’s Disease

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    Background and Objectives. Postural changes are frequent and disabling complications of Parkinson’s disease (PD). Many contributing factors have been evident either related to disease pathology or to adaptive changes. This study aimed at studying the postural changes in subjects with Parkinson’s disease and its relation to duration of illness and disease severity. Methods. Eighteen patients with PD and 18 healthy matched volunteers represented the sample of the study. The patients were at stage 1 or 1.5 according to the Modified Hoehn and Yahr Staging with duration of illness between 18 and 36 months. Three-dimensional analysis of the back surface was conducted to explore the postural changes in the sagittal and frontal planes in both the patients and the healthy subjects. Results. Kyphotic angle, lordotic angle, fleche cervicale, fleche lombaire, scoliotic angle, and associated vertebral rotation and pelvic obliquity were significantly increased in patients with PD compared to the healthy subjects (P≤0.05). There was no association between the measured postural changes and duration of illness as well as the severity of the IPD (P≤0.05). Conclusion. Postural changes start in the early stages of idiopathic PD and they have no relationship to the duration of illness and disease severity
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