Companies that engage in captive offshoring activities as part of their strategic decisions, experience “known and unknown” hidden costs during its implementation influencing a firm’s performance. In this sense, analyzing the hidden costs of the knowledge transfer from different managerial levels and perspectives contributes to conceptualize and enrich the OS literature from the experience of a case study. The purpose of this thesis is to explore the hidden costs in the knowledge transfer as part of the OS implementation from a multi-level managerial perspective. This research has a qualitative methodology and as a research strategy the authors choose interviews that were performed online. The interviews consists of 8 managers from different levels. The findings show that managers from different levels have identified key aspects of the “known and unknown” hidden costs in the knowledge transfer within the micro-level during the OS implementation towards improving outcomes expectations. Communication has been found as a critical factor for the knowledge flow representing the main constraint of an efficient transfer of tacit knowledge in which international projects are influenced by high cultural, language gaps, and geographical distance. Unknown hidden cost was reflected in an unexpected high turnover and limited time frame.

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Groundwater is a sensitive component affected by climate change. Modelling the dynamics of groundwater levels is inherently difficult particularly as the response to climate change. Given this complexity, most of the current studies using long term groundwater time series were conducted by statistical analysis or using over simplified assumptions to represent the physical processes in hydrological system. With the objective of providing an improved physically based groundwater modelling approach to support climate change impact assessment, a dataset of long term time series of groundwater levels from two different soil types (sand and till) were selected from the Tärnsjö area located in southeast of Sweden. The CoupModel was chosen to perform the simulation since it offers a physically based representation on groundwater recharge processes. A two-step strategy for calibration with first short-term calibration followed by long-term testing was adopted. Simulated groundwater levels followed the general patterns of measured groundwater level dynamics; however, auto-correlations and periodicities were observed in residuals for all sites of which two sandy soil sites with deeper groundwater tables maintained strong auto-correlations in long time lags and an extra 15.4-year periodicity. The long memory of the system rendered it more susceptible to climate change. Uncertainty arises if different initial condition had been applied in short term period calibration.

Worldwide, changes in the family have become more evident. Many of the traditional roles that families used to play are now performed by other institutions, such as schools, churches, a variety of welfare agencies and non-governmental organizations. Families in South Africa are no exception, as many South African families are faced with challenges that have a negative impact on their ability to sustain themselves and their members. The previous Minister of Social Development, Doctor Zola Skweyiya, rightly acknowledged that, in order to address the needs of vulnerable groups in our communities effectively, we need a particular focus on the role of the family, both as a developmental and as a supporting institution. In responding to these challenges, the Department of Social Development developed a new Manual on Family Preservation Services (Department of Social Development, 2008b), with the aim of training social service professionals to deliver family preservation services. In order for the programme envisaged by the developers of the Manual to be implemented efficiently, the Norms and Standards Policy on Developmental Social Welfare Services (Department of Social Development, 2007a:52-57) mandates the roll-out of the training and education by all provinces. Thus all social service professionals are mandated to implement family preservation services as stipulated by the Norms and Standards Policy on Developmental Social Welfare Services (Department of Social Development, 2007a) and the Draft National Family Policy (Department of Social Development, 2008a). In her role as one of the trainers on family preservation services who was also responsible for monitoring and evaluating these services in the provinces, the researcher observed the inadequacy and inconsistency of the concept of family preservation services in reporting among social service professionals despite the training and capacity-building carried out by the Department of Social Development. The researcher therefore investigated, first, whether the formulation of the Manual on Family Preservation Services lacks clarity relating to the theoretical framework and operational definition of key concepts which are supposed to assist social service professionals in rendering effective family preservation services. Second, she interviewed 20 social workers regarding their experiences on the formulation and implementation of the Manual. This is a small sample in terms of representing social workers in the country. In total, 37 social workers were originally interviewed, but, because it transpired that they had never attended any training on the Manual for Family Preservation Services, their data were excluded from the empirical study, even though they are implementing these services. The researcher was therefore interested in analysing the formulation of the Manual on Family Preservation Services and also analysed the experiences of social workers regarding the formulation and implementation of the Manual, with the aim of identifying gaps and improving service delivery to families. The researcher reviewed prior literature on systems theory, which is fundamental in addressing family dynamics, the family life cycle and its stages. She also considered literature on family preservation services on four levels of service delivery, the stages of the policy cycle and the overview of the Draft National Family Policy, as well as the Manual of Family Preservation Services. In this study, the researcher adopted an explanatory design, which is a form of mixed methods research. The overall purpose of an explanatory design is to gather qualitative data that help to explain or build upon initial quantitative results from the first phase of the study. In order to collect quantitative data, the researcher used a checklist for a content analysis of the formulation of the Manual on Family Preservation Services. She then conducted semi-structured interviews to collect qualitative data about social workers’ experiences regarding the formulation and implementation of the Manual on Family Preservation Services in eight provinces. The researcher did a pilot test of the semi-structured interview schedule, which helped her to refine two questions that were understood differently by the two social workers who participated in the pilot test. After latent coding, the quantitative data were analysed manually, while the qualitative data were coded according to Creswell’s model for qualitative data analysis. The quantitative empirical results revealed some limitations in the formulation of the Manual on Family Preservation Services. Such limitations include an unclear definition of the concept of family preservation services, the omission of objectives from the Manual, confusion with regard to the theoretical frameworks applied, a lack of clarity on the role of volunteers, the process of providing training and capacity-building to social service professionals, monitoring and evaluation plan. These findings were confirmed by the social workers who were interviewed. They exposed the confusion that exists on the definition of family preservation services, the objectives, the theoretical frameworks, the role of volunteers, high case-loads, which they linked to a shortage of social workers and the fact that resources, training and capacity-building on family preservation services are not prioritized. It was therefore recommended that the issues highlighted above be addressed and be included in a revised Manual, and that relevant material also be provided to social service professionals who need to implement family preservation services. / Thesis (DPhil)--University of Pretoria, 2009. / tm2015 / Social Work and Criminology / DPhil / Unrestricted

A common concern about volcanic unrest is that the communication of information about increasing volcanic alert levels (VALs) to the public could cause serious social and economic impacts even if an eruption does not occur. To test this statement, this study examined housing prices and business patterns from 1974–2016 in volcanic regions with “very-high” threat designations from the U.S. Geological Survey (USGS)—Long Valley Caldera (LVC), CA (caldera); Mount St. Helens (MSH), Washington (stratovolcano); and Kīlauea, Hawaiʻi (shield volcano). To compare economic trends in nonvolcanic regions that are economically dependent on tourism, Steamboat Springs, CO, served as a control as it is a ski-tourism community much like Mammoth Lakes in LVC. Autoregressive distributed lag (ARDL) models predicted that housing prices were negatively affected by VALs at LVC from 1982–1983 and 1991–1997. While VALs associated with unrest and eruptions included in this study both had short-term indirect effects on housing prices and business indicators (e.g., number of establishments, employment, and salary), these notifications were not strong predictors of long-term economic trends. Our findings suggest that these indirect effects result from both eruptions with higher level VALs and from unrest involving lower-level VAL notifications that communicate a change in volcanic activity but do not indicate that an eruption is imminent or underway. This provides evidence concerning a systemic issue in disaster resilience. While disaster relief is provided by the U.S. federal government for direct impacts associated with disaster events that result in presidential major disaster declarations, there is limited or no assistance for indirect effects to businesses and homeowners that may follow volcanic unrest with no resulting direct physical losses. The fact that periods of volcanic unrest preceding eruption are often protracted in comparison to precursory periods for other hazardous events (e.g., earthquakes, hurricanes, flooding) makes the issue of indirect effects particularly important in regions susceptible to volcanic activity.

Background: Despite the obvious attraction for “greener” solutions in all industries, the different sustainable measures adopted by governments, business associations, andbusinesses themselves, the remaining high number of landfilled solid wastes from allindustries per year, especially the construction industry, suggests that a waste managementtowards valorisation is not systematically the first chosen option for the firms collecting the wastes. Purpose: To increase awareness, develop knowledge and show how collaboration within abusiness ecosystem and adapted corporate strategy allows the development of sustainablewaste management. Methodology: A comparative case study on the waste valorisation and innovation creationprocess, approached throughout a semi-structured qualitative data collection of fivepractitioners within a similar business ecosystem. Findings: The findings indicate that mutli-strategy level collaboration within and betweenbusiness ecosystems is a nursery for the development of innovation in the context of waste valorisation.

Authentication methods offer varying levels of security. Methods with one-time credentials generated by dedicated hardware tokens can reach a high level of security, whereas password-based authentication methods have a low level of security since passwords can be eavesdropped and stolen by an attacker. Password-based methods are dominant in web authentication since they are both easy to implement and easy to use. Dedicated hardware, on the other hand, is not always available to the user, usually requires additional equipment and may be more complex to use than password-based authentication. Different services and applications on the web have different requirements for the security of authentication.  Therefore, it is necessary for designers of authentication solutions to address this need for a range of security levels. Another concern is mobile users authenticating from unknown, and therefore untrusted, computers. This in turn raises issues of availability, since users need secure authentication to be available, regardless of where they authenticate or which computer they use. We propose a method for evaluation and design of web authentication solutions that takes into account a number of often overlooked design factors, i.e. availability, usability and economic aspects. Our proposed method uses the concept of security levels from the Electronic Authentication Guideline, provided by NIST. We focus on the use of handheld devices, especially mobile phones, as a flexible, multi-purpose (i.e. non-dedicated) hardware device for web authentication. Mobile phones offer unique advantages for secure authentication, as they are small, flexible and portable, and provide multiple data transfer channels. Phone designs, however, vary and the choice of channels and authentication methods will influence the security level of authentication. It is not trivial to maintain a consistent overview of the strengths and weaknesses of the available alternatives. Our evaluation and design method provides this overview and can help developers and users to compare and choose authentication solutions.

The purpose of this study was to evaluate the effects of boat density on boaters' satisfaction at Hyrum Lake State Park, Utah. The study evaluated relationships between boaters' satisfaction with their Hyrum Lake experience and density of boats at different locations on the lake and among participants in different boating activities. The participants in this study were boaters who used Hyrum Lake between May and September of 1996. An oral, onsite interview survey was randomly given to 282 boaters as they left the lake for the day. The surveys were conducted on high-density days (weekends) and low-density days (weekdays) , which were also randomly selected. Correlation analysis and analysis of variance (ANOVA) were performed . The study found no significant relationships between density and satisfaction associated with either lake location or activity. Satisfaction did not differ between activities; however, participants in two activities (fishing and water skiing) did report higher satisfaction while using the boat ramp than for other locations on the lake. When a Welch t' test was performed comparing boating density ≤ 44 with boating density ≥ 45 boats, even though there was no statistically significant difference, a suggested trend did appear . The results indicate a slightly higher satisfaction rating among water skiers when density was 44 or fewer boats. Conversely, personal watercraft (PWC) users indicated that their satisfaction levels were higher when boating density was ≥ 45 boats. This would suggest that PWC users may be satisfied at boat densities much higher than other users could accept. Although 74% of all the boaters surveyed wanted to set a limit (carrying capacity) on the number of boats allowed on the lake at one time, the carrying capacity will not be immediately implemented, because the data found no statistically significant difference in satisfaction levels with higher boat densities.

In the semi-arid west, moisture is often the limiting factor in plant growth. High crop production is dependent upon rainfall and supplemental moisture supplied through irrigation. Plants for these areas, which are most efficient in use of water, other things being equal, would be more desirable.

Over an 18-year period, beginning in 1955, a group of subjects has been studied six times to determine if any relationship exists among serum cholesterol levels, body weight, health status, diet quality and stress or anxiety. For the first four test periods, extending through ages 7 to 16 years, there were 321 subjects. Later, in 1968, 86 of the original 321 subjects, now aged 19-22 years, were able to participate in a follow-up study. The 1974 study was able to involve 30 of the original 321 subjects now aged 26-29 years. Findings show that from approximately the fifteenth year onward serum cholesterol levels in males continue to rise in an almost linear fashion, whereas females experienced a drop in serum cholesterol levels at ages 19-22 years which was followed by a rise when they reached 26-29 years. Persons who were classified as overweight in the sixth test period had higher serum cholesterol levels than persons classified as either desirable weight or under-weight for both sexes. Anxiety levels as determined by the IPAT anxiety scale questionnaire in the sixth test period showed that for males there was a positive relationship between serum cholesterol and anxiety but for women a negative relationship was shown. Subjects with serum cholesterol levels above 250 mg/100 ml consumed diets higher in saturated fats than the subjects with serum cholesterol levels below 250 mg/100 ml. In males a significant positive correlation was shown between serum cholesterol levels and smoking.