567 research outputs found
Every Picture Tells a Story: Visual Alternatives to Oral Tradition in Ponam Society
Those concerned with recording the history, the culture, and the tradition of village societies seek the sources of their information in the spoken word. Historians, folklorists, and anthropologists have sat down with their informants, pencil and paper in hand, and have urged them to talk. After all, these are the people and societies without history, the people and societies that do not produce written accounts that might contain the answers to the questions posed by investigators. These researchers have benefited from a change that has been taking place in western scholarship, unevenly in different disciplines, over the past quarter-century: the revaluation of the sources of tradition and local knowledge, a revaluation that elevates oral sources and oral traditions in relation to their written counterparts. In our own field, anthropology, evidence of this change is found in the growing interest in ethnohistory and ethnopoetics, part of a general turn toward more cultural concerns. This shift shows an increasing awareness that oral studies have a logic and validity of their own, that they are not merely inferior cousins to the study of written sources. Indeed, some scholars who espouse this viewpoint have theorized that the emergence of writing was not an unalloyed good, a leap out of the darkness (e.g. Goody 1977; Ong 1971). Instead, it comes to take on elements of a fall, as the spread of writing is associated with the growth of an oppressive state
Review of: Godelier, Maurice and Marilyn Strathern (eds.): Big Men and Great Men: Personifications of Power in Melanesia
Improvements in Microboiling Device Design
Small ribbon heaters (10 μm - 20 μm wide) have been used for many years to study the formation of microbubbles in liquids when short voltage pulses are applied. This thesis describes improvements in the device design with an emphasis on smaller and more sensitive heaters. I used a novel method of creating 250 nanometer wide heaters to keep both the fabrication time and costs as low as possible by using a focused ion beam to create the heaters from a set of larger devices. Ribbon heaters are usually fabricated on a thin SiO2 layer on a silicon wafer which acts as a large heat sink whose effect becomes more pronounced the smaller the heater width. Suspending the heaters on a thin membrane dramatically increased their sensitivity in microboiling experiments. The suspended devices required the development of a very low stress platinum deposition process
Data Analysis Processes and Techniques for Validation of Wearable Technology: An Example
Topics in Exercise Science and Kinesiology Volume 3: Issue 1, Article 10, 2022. With wearable technology growing in popularity and sophistication, there remains a need to determine the validity of these devices by independent observers. Validation studies of wearable technology can involve large amounts of data, with data preparation techniques that are not always clearly established. This can make attempts to reproduce the results difficult and does not allow researchers to gain guidance in how to perform their own analyses if they wanted to perform a similar study. Therefore, this paper details the process that was utilized to prepare and analyze the accuracy of several heart rate monitors during mountain biking and can be used as a possible guide to researchers looking to perform similar analyses. We also detail the software used and discuss possible alternatives
'The game of football is quite unsuitable for females and ought not to be encouraged': a comparative analysis of the 1921 English Football Association ban on women's football in Britain and Ireland
Limits of Environmental Understanding: Action and Constraint
Some recent influential work on understandings of the environment identifies what can
be called a “Modern” view, which sees the environment in impersonal, objective terms, as separated from the Modern individual. That work also tends to ignore the ways that
people’s actions regarding their environment can be constrained by external factors and
can result in a modification of people’s initial views of the environment or the adoption of additional views. This article looks at some environmental activists in Jamaica to suggest that people with Modern backgrounds can have a non-Modern view of their surroundings, and to illustrate the ways that their actions regarding the environment can lead them to complicate their understandings of their surroundings
Lanczos-based Low-Rank Correction Method for Solving the Dyson Equation in Inhomogenous Dynamical Mean-Field Theory
Inhomogeneous dynamical mean-field theory has been employed to solve many
interesting strongly interacting problems from transport in multilayered
devices to the properties of ultracold atoms in a trap. The main computational
step, especially for large systems, is the problem of calculating the inverse
of a large sparse matrix to solve Dyson's equation and determine the local
Green's function at each lattice site from the corresponding local self-energy.
We present a new efficient algorithm, the Lanczos-based low-rank algorithm, for
the calculation of the inverse of a large sparse matrix which yields this local
(imaginary time) Green's function. The Lanczos-based low-rank algorithm is
based on a domain decomposition viewpoint, but avoids explicit calculation of
Schur complements and relies instead on low-rank matrix approximations derived
from the Lanczos algorithm, for solving the Dyson equation. We report at least
a 25-fold improvement of performance compared to explicit decomposition (such
as sparse LU) of the matrix inverse. We also report that scaling relative to
matrix sizes, of the low-rank correction method on the one hand and domain
decomposition methods on the other, are comparable.Comment: 13 pages, 1 figure, 24th Annual CSP Workshop, University of Georgia,
Athens, GA, submitted to Physics Procedia. New version has some of the
References correcte
Developing Leadership Dispositions for Preparing Urban School Leaders in Chronically Low-Performing Schools
This study originated as an institutionally sponsored research residency conducted using utilization-focused evaluation (Patton, 2008) to investigate the nature of dispositional changes in candidates pursuing National Louis University’s M.Ed. and Ed.S. degrees leading to educational leadership (EDL) state certification in one large urban school district in a Southern state. The EDL program organized learning objectives intending to develop a specific knowledge base, an operational competency set, and, as this study’s focus, leadership dispositions related to preparing assistant principals and principals to lead effectively in chronically low-performing (CLP) schools. The inquiry cross-analyzed data at the intersection of the graduate program’s disposition-related learning objectives with 13 leadership dispositions identified in The Haberman Educational Foundation Star Urban Administrator Pre-Screener. EDL program faculty administered the pre-screener to EDL program candidates twice, yielding 187 matched pairs in pre-program and post-program administrations. Statistical analyses yielded a significant difference (improvement) in overall Haberman scores at the .01 alpha level, as well as an effect size considered (Cohen, 1969) to be a medium effect size. Faculty triangulated the data with interviews of alumni and faculty with experience in leading CLP schools, who affirmed that focus on leadership dispositions serves an important developmental role in an EDL program. The study appears to validate the measurable presence and dynamic changes in EDL candidate dispositions as an element of a graduate program focused on developing effective leaders of CLP schools
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