Pin Router Duplicator Base

The idea for the following project came from the Lean Manufacturing class that is offered at Central Washington University. In this class the manufacturing processes is demonstrated through the production of guitar kits. A problem with the class is that the CNC machine gets backed up causing a bottleneck in the production line. The solution to this problem was to make a pin router duplicator. A pin router duplicator is a device that allows the operator to trace a finished part with a pin while a router mimics its movements, cutting a new part. The component that is looked into for this report is the base. The base allows for movement in the x and y-axis and the ability to hold the head unit. The main requirement for this project were limiting the amount of deflection in the shafts to maintain a part tolerances of 5 thousandths and a repeatability of 2 thousandths. To achieve these requirements, linear bearings and precision shafting were to be used. However, due to cost restraints, a prototype design had to be substituted. The design ended up going to smaller diameter shafts with a rougher surface finish, and substituted bearings for plastic sliders. This changed the testing to be comparing a calculated amount of deflection, to an actual measured amount of deflection on a shaft. Through this testing, it could be seen that the device would function the way that was predicted and actually deflected a little less then expected

Using a Dramatization/Discussion Model in Educating Deaf Adults

Non

Letters from Olive Fremstad to Willa Cather: A View Beyond \u3ci\u3eThe Song of the Lark\u3c/i\u3e

In 1913, Willa Cather met opera-diva Olive Fremstad and the two formed a friendship that would span at least a decade. Fremstad has long been recognized as an inspiration for the character Thea Kronborg of Cather’s Song of the Lark (1915) but has not been portrayed as influential in any other aspects to Cather’s career. Letters sent by Fremstad to Cather have recently been located, and they reveal an ongoing and interdisciplinary dialogue between the two women that negotiates issues surrounding art and professionalism. I locate these letters within the broader context of Cather’s public and fictional statements about art during this period and find evidence of Fremstad’s influence, particularly in the concept of performative selves as an integral part of the artist’s identity and praxis. Furthermore, this relationship challenges the pervasive mythos of Cather as an isolated artist torn between considerations of commercialism and high art. By considering Cather’s relationship with Fremstad and its ensuing dialogue, I have found that Cather began her career as a professional novelist fully aware and capable of reconciling the supposed tension between her art, personal life, and commercial acumen. Cather wrote the opera stories collected in Youth and the Bright Medusa (1920) throughout this period and reveal her development of an ideology engaged with feminine vitality as a means for producing art. Advisor: Melissa J. Homestea

Gender Difference in Perception of Masculine and Feminine Gender Roles among Primary Schools Children

The purpose of this study was to investigate whether there is statistically significant gender difference in perception of masculine and feminine gender roles. Data were collected from 156 randomly selected respondents from Burayu Primary and Lalisies Talent Schools Oromia regional state Ethiopia. The reliability and face validity questionnaire was checked via pilot test. The results revealed that a substantial sex difference in perception of gender roles. That means females are socialized to be more feminine than males are. However, both sexes did not differ significantly with respect to perception of masculine gender role. Implications of the results for practice and future research are discussed. Keywords: Burayu, Children, Gender role perception, Primary School

De Novo Designed Metallopeptides to Investigate Metal Ion Homeostasis, Electron Transfer, and Redox Catalysis.

Protein design is a powerful way to interrogate the basic requirements for function of metal sites by systematically incorporating elements important for function. Single-stranded three-helix bundles with either thiolate-rich sites for spectroscopic characterization and electron transfer, or histidine-rich sites for redox catalysis are described. Using a previous design, two constructs were designed to incorporate a fourth cysteine residue to investigate thiolate-rich sites involved in metal ion homeostasis and electron transfer. Rational re-design replaced a putative coordinating histidine with a cysteine. A second construct embedded a CXXC binding motif into the helical scaffold. These two constructs show different UV-visisble, 113Cd NMR, and 111mCd PAC, which indicate that they form different proportions of CdS3O and CdS4. The spectroscopy of these sites sheds light on how Cd(II) bindis to CadC and suggests a dynamic site in fast exchange with the solvent. Previous attempts at the design of a rubredoxin site have focused on reproducing the peptide fold around or using flexible loop regions to define the site in addition to canonical CXXC motifs. However, the use of CXXC motifs embedded in an α-helical scaffold produces a rubredoxin site that reproduces the Mössbauer, MCD, and EPR of rubredoxin without the use of loop regions. This successful design is the largest deviation from consensus rubredoxin and zinc finger folds reported. Electron transfer rates through a de novo designed scaffold were studied by the design and synthesis of a ruthenium trisbipyridine derivative appended to an exterior cysteine residues. A redox-active tyrosine in the 70th position is implicated as a relay amino acid from the iron center and absence of the tyrosine decreases the rate of electron transfer from the metal site. This is the first photo-generated tyrosine radical in a designed protein. A construct, which was previously reported for CO2 hydration, is substituted with copper and its spectroscopic and nitrite reductase activity are studied. This is the first demonstration of nitrite reductase activity in a single-stranded designed peptide. This thesis provides insight into designed proteins and their applications and lays the groundwork for further studies to progress towards a unified multifunctional redox protein.PHDChemical BiologyUniversity of Michigan, Horace H. Rackham School of Graduate Studieshttp://deepblue.lib.umich.edu/bitstream/2027.42/113513/1/agtebo_1.pd

Cultivating Collaboration: Optimizing Communication Between Designers and Non-Designers

Clients and designers, having different tacit knowledge, fail to effectively communicate with each other during the design process. These inadequacies risk relationships, reputations, and project success. This issue has long been recognized in the field of design, often as a concern with client involvement. This research aims to identify these complications in the design process and inform how they might be amended. Specifically, it investigates how the relationship between designers and clients can be improved in order to garner better communication and greater project success. In this context, clients are defined as non-designers that commission design professionals. A literature review as well as several case studies and visual analyses conclude that collaboration, empathy, and project structure improve communication and project outcomes. These findings will inform a proposed visual solution that aims to provide knowledge and structure to client-designer partnerships in order to facilitate these benefits

Geophysical Surveys of Debris Flow Susceptible Areas; Implications for Risk Perception

Understanding how an individual cognizes and processes geophysical information pertinent to natural hazards can further enhance geophysical imaging in becoming more reliable and beneficial to the public. It has long been debated to what degree an individual’s perception of the risk associated with natural disasters changes with the level of exposure to relevant scientific evidence and the manner in which the information is communicated by experts. Debates on this topic have circled around climate change, natural hazard preparedness, and health risks. One situation that lends itself to studying the public perception of the information content in geophysical images is debris flow hazard in inhabited mountainous regions, as such flows have an immediate impact on human life, property and amenity values. Geophysical mapping was performed along the Front Range in Boulder County, Colorado, to provide information about the potential for new additional debris flows in light of the September 2013 flooding episodes, which brought a State of Emergency to Boulder County. The geophysical maps provided subsurface images of geotechnical proxies that are herein interpreted in terms of debris flow susceptibility along a given profile. We acquired two along-slope and two down-slope electrical resistivity tomography (ERT) profiles for assessment of potential slope failure. The ERT images suggest a complex subsurface heterogeneity characterized by shallow localized channels of high hydraulic conductivity constrained by surrounding areas of low hydraulic conductivity. Understanding the geotechnical implications of these subsurface structures gives better insight into the apparent risk of future rainfall-induced debris flows in this specific area. The geophysical information ideally would be widely communicated to the public and local stakeholders for risk assessment and mitigation purposes. In this study, instead we have used a small informal focus group approach which has provided a crude indication of the potential response of the public and stakeholders to the information content revealed in the ERT images pertaining to Boulder county debris flow-susceptible slopes. Particularly, we monitored changes in expressed risk perception as various levels of scientific information were systematically revealed to the focus group. The focus group study is a precursor to a larger study in understanding how the general public perceives geophysical information regarding natural hazards and its implications for hazard mitigation

Artist Resale Right: Should Botswana Codify?

The Artist Resale Right (ARR) entitles a visual artist to a certain percentage of income generated from the resale of their artwork in the secondary market. Historically, resale royalty initiatives were motivated by a romantic notion that artists are so poor and in such a weak bargaining position that they deserve special legal protection. Arguments have since advanced from the notion of the ’starving artist’ to now citing the copyright protection deficiency that exists between the protection of multiple copy artists and visual artists. There has been advocacy from artists and politicians albeit not in collective voices for Botswana to codify ARR. This paper evaluates whether Botswana should provide for ARR in its laws and further guides lawmakers in considering such legislation. Specifically, this paper points out that many countries that have codified ARR have not implemented it. It attributes the lack of or delayed implementation of ARR to the information deficit, otherwise referred to as the asymmetry problem, that pervades the ARR practice. This asymmetry problem denies policymakers and other stakeholders a chance to establish the efficiency of ARR. The majority of arguments surveyed in this paper are at loggerheads, with each side raising strong valid points. This paper notes that the insignificant size of the Botswana art market is likely to eclipse the potential benefits promised by ARR. However, the authors conclude that Botswana should codify ARR based on the notion of redressing the copyright protection deficiency faced by visual artists as compared to other categories of copyright owners