Copyright (c) 2009 Boise State University All rights reserved. http://scholarworks.boisestate.edu Recent documents in ScholarWorks en-us Sat, 07 Nov 2009 05:51:45 PST 3600 http://scholarworks.boisestate.edu/cs_gradproj/1 http://scholarworks.boisestate.edu/cs_gradproj/1 Thu, 05 Nov 2009 17:10:26 PST The advent of digital age has resulted in more television consumers switching to Digital TV with considerable improvement in image quality and ease-of-use. Consumers are able to select and view television programs and channels of choice by using a pay-per-use model or streaming video from their computer terminals. In all these use cases, the media provider requires a means by which they can restrict the consumers from watching selected programs for a pre-approved temporal interval. The consumer needs to be prevented access to certain pay-per-use channels and programs upon expiry of this pre-approved access. This necessitates the media provider to have a way to generate and assign time-bound secure access keys which could be granted and removed easily. In conventional key assignment schemes, one has to renew the keys periodically and redistribute the keys to the users accordingly. To allow a user to access all the authorized data over some temporal window, this straightforward implementation requires him/her to keep a lot of keys which is very inefficient.In contrast to conventional schemes, a time-bound hierarchical key assignment scheme updates the keys periodically according to the class hierarchy and an entity only keeps a small amount of information for deriving all his entitled keys. Wang and Laih (WL) proposed a scheme with a concept of merging, which provides a systematic way to solve the problem. Yeh-Shyam (YS) scheme has improved on the WL scheme and has theoretically shown polynomial improvement in both memory and performance requirement. In this project, we will compare and contrast these secure key generation techniques and provide comparative analytical results. Rajasree Shyam http://scholarworks.boisestate.edu/counsel_facpubs/5 http://scholarworks.boisestate.edu/counsel_facpubs/5 Thu, 05 Nov 2009 15:59:43 PST This study examined the relationship between intimate partner violence and adult attachment in a sample of 70 couples. The attachment style of each partner and the interaction of the partners' attachment styles were examined as predictors of intimate partner violence. Additional analyses were conducted to examine violence reciprocity and to explore differences in the relationship between attachment and violence using continuous and dichotomous violence measures. Results of hierarchical regression analyses indicated the "mispairing" of an avoidant male partner with an anxious female partner was associated with both male and female violence. When controlling for partner violence, the relationship between attachment and violence was significant for males only. In addition, analyses using a dichotomized violence variable produced different results from analyses using a continuous violence measure. Clinical implications include focusing on the discrepancy between partners' needs for intimacy and distance within the couple as a strategy for treating intimate partner violence Diane Doumas http://scholarworks.boisestate.edu/electrical_facpubs/44 http://scholarworks.boisestate.edu/electrical_facpubs/44 Thu, 05 Nov 2009 15:51:21 PST The push toward voting via hand-marked paper ballots has focused attention on the limitations of current optical scan systems. Discrepancies between human and machine interpretations of ballot markings can lead to a loss of trust in the election process. In this paper, a style-based approach to ballot recognition is proposed in which marks are recognized collectively rather than in isolation. The consistency of a voter's style is leveraged to improve the overall accuracy of the system. We compare style-based recognition to various kinds of singlet classifiers and show that it outperforms them by a substantial margin Pingping Xiu http://scholarworks.boisestate.edu/edtech_facpubs/3 http://scholarworks.boisestate.edu/edtech_facpubs/3 Thu, 05 Nov 2009 15:34:47 PST Ross Perkins http://scholarworks.boisestate.edu/geo_facpubs/12 http://scholarworks.boisestate.edu/geo_facpubs/12 Wed, 04 Nov 2009 13:33:23 PST Zircon and monazite from granitic sheets and dikes in the Monashee complex, Canadian Cordillera, were investigated to determine whether igneous crystallization occurred at 1.9 Ga or 50 Ma with 1.9 Ga inherited zircon and monazite. Four of the five samples are weakly deformed to undeformed, despite occurring in a gneiss dome at the structurally deepest exposed level of the orogen that elsewhere was strongly deformed and partly melted at 50 Ma. Based on U-(Th)-Pb dates from zircon and monazite, field relationships, and mineral composition and zoning, we conclude that the granitic rocks crystallized at 1.9 Ga and were metamorphosed at 50 Ma. All dated zircon is 1.9 Ga (except for 2.3-2.0 Ga inherited cores) and 1.9 Ga monazite comprises >90% of the population in four samples. The remainder of the monazite is 50 Ma and all monazite in one sample is 50 Ma. Composition and zoning of 1.9 Ga zircon and monazite are uniform within samples, yet differ between samples, indicating growth from 1.9 Ga magmas that are unique to each sample. This relationship is unlikely if the grains are inherited because the host rocks are heterogeneous 2.3-2.1 Ga gneisses. The 1.9 Ga zircon and monazite have zoning that is consistent with growth from magmas, whereas the 50 Ma monazite has variable composition and zoning that suggest growth from diverse metamorphic fluids. The results demonstrate that part of the Monashee complex was last strongly deformed and partly melted at 1.9 Ga, and thus largely escaped Cordilleran tectonism Jim Crowley http://scholarworks.boisestate.edu/electrical_facpubs/43 http://scholarworks.boisestate.edu/electrical_facpubs/43 Tue, 03 Nov 2009 14:41:50 PST The change of chemical structure resulting after X-ray and photo-induced silver diffusion into chalcogenide glass (ChG) thin films is monitored by high resolution X-ray photoelectron spectroscopy (XPS). As40S60 and Ge30Se70 thin films, which are based on pyramids and tetrahedral structural units, are investigated as model materials. Survey, core level (As 3d, S 2p, Ge 3d, Ge 2p, Se 3d, Ag 3d5/2, O 1s, C 1s) and valence band spectra have been recorded and analyzed. Reference point for the binding energy is established by the subsequent deposition of thin gold film on top of the measured samples. The chemical structure gradually changes during diffusion of silver in all the samples. The mechanism of change depends on the chemical composition, thickness of the diffused silver layer and conditions of irradiation. It is revealed that surface oxygen can play important role in the Ag photodiffusion process, leading to phase separation on the surface of the films. Photodiffusion of Ag into As40S60 film leads to the formation of a uniform ternary phase and arsenic oxides on the surface. The formation of ethane-like Ge2(S1/2)6 units together with germanium oxidation are the main outcomes of X-ray induced Ag diffusion into Ge30Se70 film. A. Kovalskiy http://scholarworks.boisestate.edu/nursing_facpubs/2 http://scholarworks.boisestate.edu/nursing_facpubs/2 Mon, 02 Nov 2009 14:29:13 PST Objective: To evaluate the relationship between nurse to population ratio and population health, as indicated by state health ranking. Design: Secondary analysis correlational design. Sample: The sample consisted of all fifty states in the U.S. Measurements: Data sources included the United Health Foundation's 2006 state health rankings, the 2004 National Sample Survey for Registered Nurses, and the U.S. Health Workforce Profile from the New York Center for Health Workforce Studies. Results: Significant relationships between nurse to population ratio and state health ranking (rho = -.446, p =.001) and 11 of the 18 components of the overall ranking (motor vehicle death rate, high school graduation rate, violent crime rate, infectious disease rate, percentage of children in poverty, percentage of uninsured residents, immunization rate, adequacy of prenatal care, number of poor mental health days, number of poor physical health days, and premature death rate) with higher nurse to population ratios associated with higher health rankings were found. Physician to population ratios were also significantly related to state health ranking, but were associated with different components. Conclusions: These findings suggest that greater nurses per capita may be uniquely associated with healthier communities, however further multivariate research is needed. Jeri Bigbee http://scholarworks.boisestate.edu/electrical_facpubs/42 http://scholarworks.boisestate.edu/electrical_facpubs/42 Mon, 02 Nov 2009 13:25:11 PST Silver photodiffusion in thin Ge30Se70 films is investigated in order to understand the structure forming in the Ge-Se host after introduction of Ag in it. Optical micrographs point towards formation of homogeneous films after deposition of the Ge-Se material on glass substrate. This structure changes and occurrence of heterogeneous regions is imaged after Ag is introduced into the Ge-Se host. Raman spectroscopy provides data about the development of the structural organization in the host in depth. It confirms that while the initial non-doped films are organized in a structure corresponding to the bulk material with analogous composition, after Ag photodiffusion, the structure on the interface Ag/Ge30Se70 film is identified as being amorphous Ag8GeSe6 which continuously changes in depth to structure of Ge-rich material. Raman spectra testify that Ag distribution reaches the bottom of the hosting Ge30Se70 films. Mingji Jin http://scholarworks.boisestate.edu/physics_facpubs/15 http://scholarworks.boisestate.edu/physics_facpubs/15 Fri, 30 Oct 2009 13:17:58 PDT The Raman spectra of Ge-S glasses in the Ge-rich region from Ge 33 to 46 % have been investigated in order to know the structural development of the network glasses. From the detailed curve fits, we have found that there is an unassigned peak at 410 cm-1 and it becomes larger with increasing Ge composition. To clarify the structural origin of the peak, we virtually constructed the atomic arrangement of the glassy state starting from the crystalline state through the liquid state and changed the composition gradually depleting the medium in sulfur. From the consideration of the structural modeling and the atomic orbital theory, we suggest that single Ge-S chain is a probable structural origin of the peak. Y. Sakaguchi http://scholarworks.boisestate.edu/crimjust_facpubs/7 http://scholarworks.boisestate.edu/crimjust_facpubs/7 Thu, 29 Oct 2009 09:42:58 PDT Research on the intergenerational transmission of abuse hypothesis often only examined the existence of abuse. The current study utilizes retrospective recalls of incarcerated male defendants (N = 414), using questions formulated from the modified Conflict Tactics Scales (Straus, 1974). Five logistic regression models are ran, representing a different physical abuse measure, including incidence of physical abuse, severity of physical abuse, and three composite measures: total frequency, total severity, and total frequency/severity. Although social desirability is a limitation in any study relying on self-report data, the comparison of the chi-square (x2) values of each model may give indication that the simpler abuse measures ("incidence of physical abuse" and "severity of physical abuse") are more predictive of later abusive behaviors than the more complex, composite measures. Jeremy Ball