<p> Cross-cultural factors affect the cognitive processes engaged in by subjects to respond to rating scales. By using a sequential explanatory strategy of mixed-method research design, this study investigates four cultural groups in the software industry (n=92) - Israelis, Latinos, Romanians, and Americans &mdash; to investigate cultural effects on the thought processes used by respondents performing selected verbal (ordinal) and numeric (interval) scales.</p><p> Cluster analysis of the qualitative data identified four main response styles used by subjects &ndash; Extremes, Midpoint, Range, and Refiners. While the clusters did not differ in their demographics, when evaluating their cognitive processes against the theory of Tourangeau, Rips, and Rasinski (2000), clusters used different cognitive processes. Specifically, Refiners and Midpoint were more likely to adjust their responses during the Judgment stage before responding. </p><p> The findings of this research identified that values as acquired through life experience (i.e., leadership position) and demographics (i.e., gender, age, and educational level) rather than basic culture play a key role in the cognitive processes used by subjects to respond to scales. These factors affected scale preference, response style, cognitive processes, and even generated sentiments and emotions. Focusing on cultural values rather than cultural practices is a key need to yield valid survey results. </p><p> While some of the subjects are oblivious to the cultural effects discussed in this study, those effects have theoretical and practical implications for surveys conducted by multi-national organizations and business leaders. Furthermore, identifying and handling cross-cultural differences described in this study can be used to train leaders in cross-cultural environments.</p>

M.Com. (Informatics) / This dissertation's objective is to supply a general, functional and business orientated discussion of the measurement of information system users' satisfaction. The result of this measurement acts as a measure of the data-processing function's success. It is however, not the purpose of this study to prescribe or develop a new standard method of measurement. This discussion also supplies a grounding for any further doctoral studies in this field. The dissertation's contents, highlights and exposition are being discussed in this synopsis. The motivation of this study lies first of all in the economical and strategic importance [2,3,44,20,17] of the data processing function for an organisation. Secondly, it lies in the importance of satisfied users, or clients, for the success of the data processing function. It is therefore important to always ensure the success of the data processing function, as well as to measure the subjective user satisfaction, accurately and effectively. This study is based on a previous study by Prof. JHP Eloff and DNJ Mostert [7,43], who created a general measurement process that determines the satisfaction of information system users; as well as various other research projects regarding the development and evaluating of these methods of measurement. The various, existing methods of measurement which were found in the literature, i.e: Pearson [6,33]; Baroudi [4,15]; Bailey [16]; Raymond [5] and Tan and Lo [36] , are being discussed in this dissertation. Due to the objective of this dissertation and the business orientated nature of this study, the statistical and critical evaluation of these methods are not being discussed. An attempt is however made to supply a broad view of the available methods of measurement, as well as the various contributions to the field of study by these research projects.

<p> Water quality has evolved legislatively from protection of navigation routes and quantity of sources to more emphasis on impairments on water quality for surface and groundwater sources. Nonpoint or diffuse sources of impairments represents a major challenge for management due to the complexity of its sources and difficulty in tracking.</p><p> The most cited sections on public policy analysis focuses on the overall process agencies employ to understand the results the program yields. Often overlooked are finer details and mechanisms, such as decision-making and priority setting, which have a great impact on the overall process. To investigate these factors, we need to analyze the decision-making process used by managers.</p><p> This study focuses on using information from those with direct involvement in the establishment and implementation of the Total Maximum Daily Load program for the state of Florida. This study used decision-making analysis models from Rational-Decision-Making and Multi-Criteria Decision Analysis concepts to construct questionnaires that looks to develop priorities as seen by managers&rsquo; preferences for several presented options. This methodology allowed us to structure the viewpoints and processes water quality managers use to breakdown decisions.</p><p> The analyzed results show water quality managers prefer strong management options, involvement from stakeholders with scientific knowledge, and data collected from the source or point of impact. Interestingly, opinions in the group show that urban best management practices are considered more effective than their agriculture counterparts with a disfavor for volunteer derived data.</p><p> Ultimately, the survey highlights the need for more robust enforcement and reliable measurement of non-point source of impairments. Continued public outreach and education, especially through workshops, are denoted as important tasks to completing successful TMDLs and should be expanded and strengthened by both the Florida Department of Environmental Protection and its boundary programs.</p>

<p> The Cherokee Nation, a Federally-recognized Tribal government in Northeastern Oklahoma lacks Tribal water quality standards for numerical nutrient standards based on baseline conditions in the Cherokee Nation. Lotic waters are of special significance in Cherokee Nation culture and ceremonies. Three water quality standard priorities within the Tribe include defining Culturally Significant Waters as a designated use, identifying Culturally Significant Waterbodies and determining applicable numerical nutrient standards. Culturally Significant Water as a designated use was defined based on community surveys. Twelve rivers and streams were identified as a portion of the Culturally Significant Waters of the Cherokee Nation based on a tribal community survey using a Use Attainability Analysis. To address excess nutrients in the Cherokee Nation, a total phosphorus numerical nutrient criterion was determined using data for Culturally Significant Water bodies, literature guidance and the US Environmental Protection Agency recommended nutrient criteria process for the respective Aggregate Nutrient Ecoregion. The Oklahoma Scenic Rivers criterion of 0.037 mg/L total phosphorus for a 90-day geometric mean was evaluated and determined not to be protective of Cherokee Nation&rsquo;s Culturally Significant Waters. A total phosphorus criterion of 0.016 mg/L was recommended to protect Cherokee Nation Culturally Significant Waters from benthic algae greater than 100 mg/m² Chlorophyll <i>a.</i></p>

<p> In regulated rivers, reservoir operation decisions largely determine downstream river temperature and flow. Computational methods can minimize the risk and uncertainty of making regrettable environmental release decisions and aid operations planning and performance prediction. Mathematical modeling in particular can optimize the timing and magnitude of reservoir release decisions for downstream benefit while accounting for seasonal uncertainty, water storage impact, and competing water demands. This dissertation uses optimization and modeling techniques, modifying traditional optimization modeling to include temporal correlation in outcome variables and incorporating long-term planning and risk management into prescribed reservoir operations. The proposed method is implemented in one case, a) with a state variable that tracks outcome benefits over time (fish population size) and, in another case, b) with a maximin stochastic dynamic program solution algorithm that maximizes net operational benefit and minimizes worst-case outcomes (for cold water habitat delivery). This method is particularly useful for environmental flow management, when the water quality and quantity of the river and reservoir in one time step affect the quantity and quality in the reservoir and the river for later periods. Better solutions with these methods internalize risk and hedge releases at the beginning of an operating season to maximize downstream benefit and reduce the probability of catastrophe for the season and future years. Maximizing the minimum cold-water habitat area over months of a season or multiple years, or maximizing a river indicator variable explicitly, could likely help, for example, maximize an out-migrating salmon smolt population downstream. The method is demonstrated with a case study optimizing environmental releases from Folsom Dam and another optimizing temperature management from Shasta Dam in northern California. These results inform general rules for environmental flow management and temperature management of reservoirs, with specific policy recommendations for both Folsom and Shasta reservoirs. In both cases, the added value from employing hedging rules help reservoir operations minimize the risk of environmental catastrophe and conserve storage both within an operating season and across years.</p><p>

<p> Globally, amphibians have suffered dramatic population declines in the past twenty years with habitat destruction implicated as the primary threat. The Natural Resources Conservation Service&rsquo;s Wetlands Reserve Program (WRP) restores wetlands on marginal agricultural land and is a means to restore the spatio-temporal wetland habitat required by amphibians to prevent, reverse, or stabilize declining population trends. The goal of WRP is &ldquo;to achieve the greatest wetland functions and values, along with optimum wildlife habitat, on every acre enrolled in the program.&rdquo; Functions and values are defined as the hydrological and biological characteristics of wetlands. A key unanswered question is to what extent is this goal being achieved? Amphibians enable quantifying the WRP goal due to their life-history requirements and explicit incorporation of their habitat needs into WRP plans. My research goal was to determine if hydrological and biological wetland characteristics had been restored to WRP sites in the Lower Grand River basin, north-central Missouri, based on distribution, recruitment success, and relative species richness estimates for members of a regional species pool. I identified three design strategies applied to WRP sites over time: walk-away, maximize hydrology, and naturalistic; the latter emphasizing restoring process as well as structure; and evaluated if design strategy was a useful covariate for restoration efforts. I encountered 10 amphibian species representing 59% of the regional species pool. Design strategy was not a predictive site-level covariate as sites within all three design strategies had varying hydrological wetland conditions resulting in greater habitat heterogeneity than anticipated on maximize hydrology and walk-away sites and less than anticipated on naturalistic sites. Amphibian detections occurred across all sites resulting in no difference among design strategy as the degree of heterogeneity in habitat conditions at the within site-scale demonstrated that amphibians were responding to ecological conditions that occur at a finer resolution than site. Results, irrespective of design strategy, indicate seven of the detected species or groups were widely- distributed, two were moderately- distributed, and two were sparsely distributed on WRP sites indicating hydrological wetland characteristics have been restored to sites given the moderate- to wide-distribution of species associated with both seasonal and permanent wetlands. Although species were successfully recruiting young into adult populations, only leopard frogs had high estimates of recruitment success whereas the remaining species had moderately high to moderate to low recruitment estimates indicating biological wetland characteristics are somewhat lacking to lacking for these species. Results from the relative species richness assessment indicate that, whereas 74% of the sites provided some degree of wetland habitat for members of the regional species pool over the course of the field season (7 March &ndash; 19 September), 52% of the sites lacked suitable habitat conditions during the peak of amphibian breeding and larval development (May through July). Targeting management actions that result in suitable seasonal wetland habitat conditions (shallow, vegetated wetlands that gradually dry by mid-to late-summer) throughout the time needed for species to complete their life history requirements is one method to increase the biological wetland value of restored WRP sites. Results show the value of WRP at conserving and restoring river-floodplain amphibians; however, achieving optimum wildlife habitat on every enrolled acre will be difficult at a site-level scale as habitat requirements, although overlapping, vary widely for the full range of species. Providing for all species in the regional species pool requires sites that transverse both the longitudinal and lateral floodplain gradient. If WRP is to realize its full potential, there must be recognition that optimum wildlife habitat can be defined at multiple spatial and temporal scales that match the landscape setting. Optimum wildlife habitat at a wetland scale is not the same as optimum wildlife habitat at the floodplain scale. The intent of WRP is to convert marginal, flood-prone agricultural lands back into wetlands so enrollment of lands located outside the active floodplain may be impracticable or unrealistic. Whereas attaining optimum wildlife habitat on every acre enrolled in the program may not be an achievable objective, providing optimum wildlife habitat for members of a regional species pool within an appropriately defined geography that includes both a longitudinal and lateral gradient represents an objective that is both desirable and attainable.</p><p>

<p>Abstract Varying in age from ninety-nine to two-hundred-twenty years old, the surviving historic buildings on Grand Isle reflect the patterns of lifestyle and ethnic heritage on the state?s only continuously occupied barrier island and define Louisiana Coastal Vernacular. These structures, and the stories of the people who continue to occupy them, provided the primary resources for this thesis. The proposed National Register Multiple Property Listing (MPL) comprises the only documented study in the United States of historic coastal vernacular structures endangered by climate change and wetland loss. The structures also potentially hold the keys to future coastal construction methods. Research for the MPL revealed techniques developed through trial and error that allowed buildings to survive category four hurricane winds and storm surges up to sixteen feet for over a hundred years. Once formally identified as Louisiana Coastal Vernacular, these structures may hold the keys to future coastal construction methods. Potential global applications in the face of rising seas and increasingly severe annual tropical events require further investigation of surviving historic structures and their environments. Future investigation and documentation may reveal substantial applications to new construction that reduce loss of life and property during coastal storm events. Over the past thirteen years, state and federal authorities, citizens, and industries have struggled with numerous issues related to life in Louisiana?s unique coastal environment. What, how, and where to build has constituted a major theme of these discussions and yet, no comprehensive documentation of structures that have survived centuries of this environment has been conducted to ascertain how they survived and whether that information may be applied to future coastal communities. The historic buildings on Grand Isle represent a unique facet of life in Louisiana as well as containing the potential groundwork for a better way of living with coastal areas around the world.

<p> Aquifer mergence zones are erosional unconformities that hydraulically join interlaying aquifers. In the East Newport Mesa in Orange County, Southern California, aquifer mergence zones may provide a pathway for potentially impaired low-quality groundwater of the shallow, semi-perched aquifer to migrate into the underlying regional, potable, confined aquifers. Major ion and stable isotope results imply that vertical mixing is occurring locally between the discrete shallow and deep groundwater endmembers. Vertical mixing is suggested by anomalously young radiocarbon age-dates of deep groundwater units. Radon-222 results show that shallow groundwater is discharging from the mesa, and is also actively intruded by surface water. Mixing of shallow and deep waters at these mergence zones may pose a threat to the deeper regional aquifer system. </p><p>

A model of simulation with mixed-integer programming was created to simulate ordering, production planning, and supplying activities with and without supply information sharing in a three-level capacitated supply chain consisting of multiple suppliers, one manufacturer and multiple retailers. The simulation results indicate that supply information sharing can significantly reduce total cost and enhance service level of the whole supply chain and its members. It can also lessen order variance of downstream members in the supply chain. In addition, the impacts of supply information sharing on the supply chain performance are heavily influenced by demand patterns, capacity tightness, forecast accuracy, product substitution, and the availability of raw materials. / Fierce business competition forces enterprises to pay more attention to the coordination with their suppliers and customers. Information sharing is a prerequisite for coordinated supply chain operations. A wide range of literature emphasizes the importance of information sharing to supply chain performance. According to the direction of information flow between supply chain members, information sharing can be classified into two categories: demand-side information sharing and supply-side information sharing. Previous literature already made a wide variety of insightful explorations into demand-side information sharing in supply chain, such as demand, forecasting, inventory, and order information sharing. However, research efforts have rarely been made into supply-side information sharing. Therefore, this dissertation explores the impacts of supply-side information sharing. / Keywords. Information Sharing; Supply Chain; Simulation. / This dissertation contributes to extending the content and scope of supply chain information sharing research. Managerially speaking, the findings of this dissertation provide important reference for supply chain managers to implement supply information sharing in order to improve decision-making process, reduce uncertainties, and increase visibility in supply chain operations. / Zhou Qiang. / "June 2006." / Adviser: Tien-sheng Lee. / Source: Dissertation Abstracts International, Volume: 68-02, Section: A, page: 0648. / Thesis (Ph.D.)--Chinese University of Hong Kong, 2006. / Includes bibliographical references (p. 170-176). / Electronic reproduction. Hong Kong : Chinese University of Hong Kong, [2012] System requirements: Adobe Acrobat Reader. Available via World Wide Web. / Electronic reproduction. [Ann Arbor, MI] : ProQuest Information and Learning, [200-] System requirements: Adobe Acrobat Reader. Available via World Wide Web. / Abstracts in English and Chinese. / School code: 1307.

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