Human valuing is a topic of study in many disciplines concerned with the behavior of humans in terms of its relationship to individual as well as group behavior. Many disciplines provide a theory of how values effect behavior, however a behavior analytic approach may demonstrate utility in terms of both understanding the formation of values as well as procedures that incorporate valuing into interventions for common psychological problems. Relational Frame Theory (RFT), a psychological account of human language and cognition, which has its foundation in behavior analysis, may provide an empirically-valid account of the formation of values and the mechanisms though which it effects behavior. Language processes including hierarchical, or categorical, relational responding, the transformation of consequential stimulus function, and rule-governed behavior may contribute to the act of human valuing. Acceptance and Commitment Therapy (ACT), a clinical derivative of RFT, incorporates values as a central component of treatment. This series of three studies sought to add to the empirical understanding of human valuing through two basic and one translational study. Study 1 examined the transformation of consequential stimulus functions in accordance with hierarchical networks, completed in a multiple baseline design. Results of this study suggest that, given sufficient strength of derived relations, the transformation was demonstrated by five of six participants. Study 2 evaluated the motivative effect of stimuli in a hierarchical relational network, completed in a multiple baseline design. The results suggest that in the presence of directly trained stimuli the motivative augmentals did not influence responding for four of four participants, however they did in a novel context for three of three participants. Study 3 sought to measure the effect of an arbitrary symbol related to a values-focused hierarchy as a motivative augmental for academic performance with a sample of undergraduate university students in a classroom setting. Together, these studies reflect a number of the languages processes necessary if an RFT-focused conceptualization of human valuing is accurate.

Broiler frames were treated with antimicrobial solutions of 0.5% cetylpyridinium chloride with CitrilowTM (CPC) or 0.1% peroxyacetic acid (PAA) for contact times of 30 to 120 sec and evaluated for their effectiveness at reducing the incidence of Salmonella spp. on broiler frames and decreasing Salmonellae counts on mechanically separated chicken meat (MSC). MSC samples were evaluated for pH, color, cook loss and protein bind. Results from the preliminary study indicated that 0.5% CPC at 60, 90, and 120 sec achieved higher reduction of Salmonellae on whole broiler frames than CPC at 30 sec or any PAA treatments. In contrast, PAA exposure for 60 sec had greater log reduction of Salmonella spp. on MSC than the other PAA or CPC treatments. On average, CPC treatments were lighter (CIE L*) (P<0.05) than PAA treatments, and PAA treatments were more red (CIE a*) and yellow (CIE b*) (P<0.05) than CPC treatments.

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This thesis presents an analytical method based on classical matrix methods for computing the dynamic response of elastic-plastic multi-storey building frames. The method developed is comparatively simple and is of much use for building frames having large number of storeys. By this method, response of multi-storey build­ings could be calculated on high-speed digital computers of high storage capacity. The computer program developed saves huge storage locations and thus makes it possible to analyze multi-storey frames which till now were con­sidered as very difficult. Dynamic response of a two-storey and six-storey frame are shown to demonstrate the utility of the method. / Thesis / Master of Engineering (ME)

A considerable amount of research has been done to connect or integrate separate numerical models. The Environmental Modeling Research Laboratory (EMRL) has developed a generic file format, the eXtensible Model Data Format (XMDF). One of the objectives of the XMDF project is to facilitate the spatial interpolation and data-sharing necessary when linking models. The objective of this research is to investigate how model linking capabilities can be added to the XMDF by defining a Model Linkage Object (MLO) that is compatible with current model linking frameworks. A potential design for an MLO is defined in this thesis after a detailed review of existing model linking frameworks. The major model-linking systems studied in this research are FRAMES, DIAS, and OpenMI. Other software was also researched and a brief description of each is provided. To limit the scope of this research the MLO is analyzed for a two-dimensional mesh using only two of the model linking systems. FRAMES was chosen because the Army Corps of Engineers has already done extensive work with this software. OpenMI was selected because of its ability to link models during runtime.

Sustainable development assistance organizations (SDAOs) are designed to help interested producers conduct market research, identify clients and more effectively manage the process of moving products to market. Producers of sustainable products are often small business owners and grassroots entrepreneurs that produce and sell natural resource-based goods and services. The broad research question this dissertation explored was whether the decision-making processes employed by producers, staff and board members in an SDAO hold implications for their collective achievement of sustainability. Data collection focused on understanding the various frames through which producers, staff and board members approach their work with, and decision making within, the SDAO as well as how they conceptualize sustainability. This research employed semi-structured, in-depth interviews with growers, staff members and board members involved in one SDAO. The analysis found that producers, staff and board members held a number of competing frames regarding the purposes and objectives of the SDAO as well as concerning the meaning of sustainability. Frames influence the ways that each stakeholder group perceived and participated in decision-making and lead to the institutionalization of tacitly supported decision-making practices. These routines, when viewed through an efficiency lens, lead to quick decision-making, avoided conflict and allowed the SDAO to make decisions with consistency and clarity. When viewed through an environmental justice lens, however, these practices proved exclusionary, favored some elements of sustainability rather than others, and supported some participants more than others. Taken together, the decision-making practices used by Blue Mountain Organic Vegetables limited the organization's capacity to develop a learning culture, created divisions among stakeholders and did not empower stakeholders with commitment to, and responsibility for SDAO decision-making. Consequently, Blue Mountain Organic Vegetables now faces organizational challenges related to the development of commitment, trust and ultimately, resilience, within the organization. The analysis concludes these concerns are potentially critical as these elements are essential for achieving sustainability, as they are also central to the organization's ability to respond to, and overcome, challenges. / Ph. D.

Traditional mortise and tenon timber frames have been used in modern construction for a substantial period of time with acceptable performance against weather phenomena and other hazards. However, performance criteria for this style of timber framing are not well defined in current codes and standards. To determine performance criteria for free-standing timber frames with knee-braces, three tasks were undertaken: (1) Two timber frame specimens were tested under cyclic loads to determine hysteretic behavior, damage states, and to explore rehabilitation of a damaged member using self-tapping screws. Three damage states for were identified: peg shear, tenon tearout, and post or beam splitting. Self-tapping screws were able to restore the strength of the 2-peg timber frame with the damaged beam, but not the stiffness of the frame. (2) Four timber frame mortise and tenon connection specimens were subjected to damp conditions for six months and then tested under monotonic tensile load to determine the effect of joint details. The results indicated that connection types tested had similar strength and stiffness. (3) Twelve free-standing timber frames with knee braces located at various sites across the United States were tested in the field under impulse loading to determine the fundamental period of vibration and to estimate damping. A relationship between the fundamental period and the mean roof height was fit to the test data using a power-law equation, and three sets of parameters were determined: a lower-bound equation for seismic loads, an upper-bound equation for wind loads, and mean equation for human-induced vibration performance criteria.

<p> An oblique four bar structural model with fixed member ends, being the most general building for space frames, is analysed under free and steady-state vibrations, using discrete mass method. </p> <p> Experimental techniques for measurement of free and steadystate vibrations are described. </p> <p> Experimental results have been compared against analytical ones. </p> / Thesis / Master of Engineering (MEngr)

<p> A Matrix Stiffness-Modification Technique has been proposed for the inelastic analysis of ·reinforced concrete frames subjected to short term or sustained loads. To check the applicability of the analytical method, two large scale concrete frames were tested under short-term loads and sustained-loads respectively. In addition, data for twenty-two frame tests from other sources has also been compared with the non-linear analysis. Close agreement has. been observed for all the frames considered. It was further concluded that a conventional elastic matrix method using stiffnesses based on a cracked transformed section of concrete does net yield accurate results, especially in the case of sustained loading conditions. From the method developed, comments can therefore be made on present column design practice. </p> / Thesis / Master of Engineering (MEngr)

<p> A research program is presented for assessing the plastic collapse load and incremental collapse load of reinforced concrete frames. This investigation attempts to establish a range of validity of simple plastic theory when applied to the under reinforced concrete frames and to determine the sensitivity of such structures to variable repeated loading. </p> <p> An experimental program was conducted on 4 reinforced concrete frames and two reinforced concrete columns. Deflections and strains of these models of nearly prototype size were measured and compared with predicted values at critical cross-sections. </p> <p> Resulting conclusions and recommendations for further research are made. </p> / Thesis / Master of Engineering (MEngr)