lap lambert academic publishing mai 2009 (148 risultati)

Taschenbuch. Condizione: Neu. Neuware -The study has demonstrated and explored on the employment situation and changing masculinity in intra-household relation under the condition of unemployment and the effects of changing masculinity on the household relation and sexual behavior. The study shows that people from 12 provinces in Cambodia migrate to Poipet in order to make better household economic. Otherwise with the attraction of border by working in Thailand which they are hoping to get better employment over there. After migrating to Poipet those migrants were trapped at the border with facing the loss of employment opportunity. A large movement of people and unemployment are seen with the affect of border with massive human trafficking, violence, corruption and other vices that come with being a casino playground for Thai tourists and a major international border crossing. In the last part of this study shows the effects of masculinity changes into domestic violence of intra- household relation of husband to wife and father to children and sexual dominance of husband to wife.Books on Demand GmbH, Überseering 33, 22297 Hamburg 108 pp. Englisch.

Taschenbuch. Condizione: Neu. Neuware -This paper applies multivariate and econometric techniques on cross-sectional data for Malawi to identify development pathways for poverty reduction, investigates their determinants and welfare implications. The study identifies three pathways:- non-farm/non-food, forestry/livestock and tobacco pathways. Non-farm/non-food pathway is associated with lower landholdings and close proximity to output markets. This pathway increases income inequality but no effect on household welfare. Forestry/livestock pathway is associated with the poor and older households in remote areas with limited market access. Although this pathway reduces the overall welfare, it reduces income inequality among households. Tobacco pathway is associated with male-headed, richer households with credit access, in highly populated areas closer to forests. This pathway increases both welfare and income inequality among households. From the policy perspective, these results proposes forestry/livestock pathway as a pro-poor, rural development strategy. This calls for the promotion of integrated forestry/livestock systems and market development for forestry and livestock products.Books on Demand GmbH, Überseering 33, 22297 Hamburg 92 pp. Englisch.

Taschenbuch. Condizione: Neu. Neuware -This book examines the actors' power relations in the Rural Water Supply and Sanitation Support Programme (RWSSSP) in Nepal, often cited among the most prominent successes of Finnish development aid. I study this case through analysing actors' conceptions, roles and motivations as well as conflicts related to the programme. This work delves into the roles and power relations of different actors, local, national and international, in the programme. It seeks to answer questions like: Was there donor domination or were the consultants dictating the practices and the representation of the programme What about the roles of local people and local government, often regarded less powerful but much promoted in the development debate and stated principles during the last few decades This work also analyses the different actors¿ conceptions of development and of success of a development programme. This analysis should help development researchers and professionals to better understand the roles and power relations in aid and to improve their conceptions and practices. The books should also be of interest to anyone concerned with development issues and Nepal.Books on Demand GmbH, Überseering 33, 22297 Hamburg 152 pp. Englisch.

Taschenbuch. Condizione: Neu. Neuware -In the last three decades or so, children¿s welfare has generated new interest. There has been a global outcry to revisit issues such as children¿s safety, children¿s rights and children¿s education. This increased consciousness has stemmed mainly from child abuse, child neglect and child exploitation that loom large around us. This book therefore makes a significant contribution to global concerns about children¿s welfare. It highlights the importance of oral literature in children¿s social and psychological development. The role of oral literature in the inculcation of moral and cultural values is underpinned. The author concludes by arguing that oral literature can be used to expose children to issues of ethical nature; thereby contributing to the moulding of future generations into individuals of moral integrity.Books on Demand GmbH, Überseering 33, 22297 Hamburg 48 pp. Englisch.

Taschenbuch. Condizione: Neu. Neuware -Public management and quality in the public sector have a number of unique conditions in comparison with the private sector. They presume basic preconditions, common to socio-political and administrative culture: legitimacy, the rule of law and ethical behaviour based on common values and principles such as openness, accountability, participation, diversity, equity, social justice, solidarity, collaboration and partnerships. Public policy is implemented in and by government agencies; this is the very place where the concept of good governance gets promoted first. The case study describes how qualitative performance evaluation is linked to dissemination of good governance, comparing more generally Asia with Europe in its pursuit of achieving the Millennium Development Goals. Government agencies in the Republic of China and Estonia differ from historic viewpoint but share the path of democratization, offering original research for comparative analysis. The study defines and contextualizes good governance by using a Common Assessment Framework (CAF) and evaluates its application in administrative agencies in respective small states.Books on Demand GmbH, Überseering 33, 22297 Hamburg 128 pp. Englisch.

Taschenbuch. Condizione: Neu. Neuware -The revealed lived experiences of African American men indicated five factors impacting social deprivation, which is often linked with the economic status of individuals. The factors identified could empower or incapacitate individuals in their efforts to improve their lives. The stereotypical image of what has been conveyed as a 'dead-beat dad' may in fact be a 'dead-broke dad.' The structural context of isolation and limited opportunities within communities tend to perpetuate feelings of hopelessness. In some instances, social deprivation is evoked when public governmental officials in positons to assist withhold vital information such as benefits and programs that could enhance the likelihood of self-sufficiency. Greater dependency is created when resources and opportunities are not accessible to aid in the acquisition of skills and training that would lead to gainful employment. Both success and failure are recognized as being the direct result of the actions one assumes for his or her own life. Consensus is that the minimization of social deprivation happens when the accessibility of resources subsist in tandem with self.Books on Demand GmbH, Überseering 33, 22297 Hamburg 144 pp. Englisch.

Taschenbuch. Condizione: Neu. Neuware -The Salvation Army, through a multitude of social services right across the world, is involved daily in saving people from the devastating impacts of poverty, homelessness, addictions, unemployment and a wide range of other predicaments. However, the dominant internal rhetoric about salvation would appear to suggest that theologically these efforts are at best secondary to an evangelical mission of conversion. What good is it to save people¿s bodies if their souls are damned to hell A critical task of this study will be to explore theological notions of salvation which encourage a holistic view of mission, with the potential for reuniting the social and evangelical purposes of The Salvation Army. It will be demonstrated that this broader view of salvation reflects the early history of The Salvation Army, has a solid scriptural basis and also fits within a number of other contemporary theological frameworks which are based in the life experience of the poor and oppressed.Books on Demand GmbH, Überseering 33, 22297 Hamburg 128 pp. Englisch.

Taschenbuch. Condizione: Neu. Neuware -Traditionally transportation and materials handling services have been organized along the transport modes, but today the logistics service concepts address more directly the needs of typical customers and the efficiency of the integrated transportation chain. This book is targeting novel conceptual approaches in the development of transfer capabilities and service solutions and to find generalized principles for strategic level structures and efficient operation to be applied over the entire physical transfer chain. A normative framework is developed for the classification and analysis of physical transfer capabilities, where an efficient matching of different transfer capabilities with different types of channel organizations can be determined in general, and with particular concern for the innovations in container shipping. Advanced solutions and operational practices are searched by examining the organizational models with strong emphasis on the role of standardization and cargo handling, transportation and the redesign of the technological and organizational interfaces. The book should be especially useful to academics and professionals in Shipping and Transportation industry.Books on Demand GmbH, Überseering 33, 22297 Hamburg 216 pp. Englisch.

Taschenbuch. Condizione: Neu. Neuware -This study examines the determinants and implications of the information disclosed in interim reports. Nine classes of determinants of disclosure are derived: governance structure, business risk, market risk, capital structure, stock valuation, firm growth, growth potential, firm size, and yearly dichotomy variables for the legislative climate. Two index classes measure disclosure: overall, including both mandatory and voluntary disclosures; and purely voluntary disclosures. Besides the year, overall disclosure is related to the business risk, growth potential, and firm size. In addition to these, a firm¿s governance structure is significant in the purely voluntary context. In the implications part of the study, the markets¿ assessment was analyzed via cumulative abnormal returns, earnings response coefficients, and bid-ask spreads. The principal finding is that disclosure enhances the communication of earnings information to the market. This is particularly evidenced when the level of disclosure is as expected. The results add to the existing understanding of determinants and the use of accounting information.Books on Demand GmbH, Überseering 33, 22297 Hamburg 276 pp. Englisch.

Taschenbuch. Condizione: Neu. Neuware -The Irish, as soldiers, wanted to help forge their identity, in New York, by joining the Union Army. Their motivations were rooted predominately in concepts of ¿honor¿ and ¿loyalty.¿ The question is: did they ¿really¿ want to become assimilated completely into American society, or did they really want to remain ¿Irish,¿ in an ¿American society¿ What is significant, is that this loyalty can be construed as more frequently directed toward Ireland, than the United States. There are four main arguments that are put forth in this book as to why many New York Irish joined the military on the side of the Union : that the Irish mainly joined the Union force for the pay they received during service, the Irish wanted to save the Union for future generations of Irish immigrants, to develop military skills that they would bring back to Ireland to help promulgate a revolution with Britain who was the occupier of Ireland at the time, and to prove as victims of nativist prejudice, the value of the Irish in the greater society in America.Books on Demand GmbH, Überseering 33, 22297 Hamburg 324 pp. Englisch.

Taschenbuch. Condizione: Neu. Neuware -The purpose of this research program was to explore the effectiveness of the Predict-Observe-Explain (POE) teaching/learning to diagnose students' understanding of science and identify students' level of achievement with reference to the Science Student Outcome Statements for Australian schools. This research employed an interpretive action research approach with a sample of students from three Australian metropolitan high schools in grades 9,10,11,and 12 whose ages ranged between 14 and 17 years. Three data collection methods were used to generate data for interpretation,namely,Chi et al.'s theory of ontological categories,Hewson and Hennessey's conceptual change theory to determine the epistemological status of student's understanding of science, and Chinn and Brewer's model to classify types of students' responses to contradictory observations.The findings in this research reveal that these POEs were effective in capturing a range of possible student observations and prediction outcomes when worded in an open-ended format.Quality information on students' understanding and on the way they responded to contradictory data was obtained when POEs were administered.Books on Demand GmbH, Überseering 33, 22297 Hamburg 212 pp. Englisch.

Taschenbuch. Condizione: Neu. Neuware -The reception of Vatican II has been stalled because the interpretations of its understanding of the Church vary widely. Some scholars claim nothing changed about the Church's self-understanding; other scholars claim that everything changed. This study shows that there was a trajectory of progressive ideas that provided the theological gravity for the Council. The most important of these ideas was a rich theology of the Holy Spirit. This study describes tthis pneumatology that emerged during the Council. The identification of this pneumatology is an essential step towards identifying the dominant ecclesiology that emerged at Vatican II. In addition, the theological description of the pneumatology of the Council assists in the accurate interpretation of the Council's texts that are saturated with the Vatican II's re-imagined ecclesiology.Books on Demand GmbH, Überseering 33, 22297 Hamburg 644 pp. Englisch.

Taschenbuch. Condizione: Neu. Neuware -This book presents a study of work-based learning (WBL) in the community services sector in New South Wales, Australia. It describes the political economy of higher education and community services, followed by a description of the defining principles and characteristic practices of WBL. The book highlights community sector workers as non- traditional students, in terms of access to higher education, having a strong concern with critical practice in their work. The concluding comments of the book consider the context of WBL under systemic influences of the political economy of the day, notably neo-liberalism and the application of a techno-economic framing of the knowledge economy. Some final comments are offered on the defence of knowledge production as a public good and the lifeworld/system dynamics of higher education/community partnership.Books on Demand GmbH, Überseering 33, 22297 Hamburg 288 pp. Englisch.

Taschenbuch. Condizione: Neu. Neuware -Syrah or Shiraz, originally from the Rhone region, France, today is in the top ten of varieties planted worldwide. It is grown in many parts of the world from Australia, Canada, Argentina, Chile, South Africa to France, Italy, Germany and Spain. It produces a full-bodied wine with intense, rich and complex flavours and tannins. As wine begins in the vineyard, this book combines viticulture, winemaking and wine tasting. It explains the effect of canopy microclimate on the accumulation of anthocyanins and tannins in grape berries (in skins and seeds) and the importance of the balance between these compounds. Their transfer into wines and their contributions to wine colour, astringency and wine flavour is illustrated. This book will appeal to professionals and amateurs in viticultural and/or wine industry and anyone else with a real love for wine.Books on Demand GmbH, Überseering 33, 22297 Hamburg 224 pp. Englisch.

Taschenbuch. Condizione: Neu. Neuware -Child survivors of the Holocaust have only recently been recognized as a distinct group of individuals who survived the war with a different experience to the older child survivors. This book focuses on those child survivors who were hidden. In hiding, some remained 'visible' by hiding within convents, orphanages or with christian families. Others were physically hidden and had to disappear from sight. Most children often combined these two experiences in their hiding.Eleven child survivors were interviewed about their experiences and their transcripts were analyzed and organized into meaning units. The analysis revealed that he defining moment of being hidden for these children was the suppression of their identities as Jews. By being hidden, they had to deny the essence of their core selves, including their names, family details and connections to others in a an effort to conceal their Jewishness. This book provides a unique insight into these experiences for a group of children, revealing their challenges and ultimate resilience in the most extreme and horrendous of circumstances.Books on Demand GmbH, Überseering 33, 22297 Hamburg 364 pp. Englisch.

Taschenbuch. Condizione: Neu. Neuware -Aesthetics of Tai cultural landscape is a comprehensive book introducing landscape aesthetic thories across East/West traditions. The case study, in the context of rapid change, demonstrates aesthetics of everyday life of multi-ethnic groups in a rural Thailand. The notion of landscape aesthetics from this perspective has shifted from visual scenic landscape to the depth of experience and cultural symbolic meaning.Books on Demand GmbH, Überseering 33, 22297 Hamburg 420 pp. Englisch.

Taschenbuch. Condizione: Neu. Neuware -This book presents an exploration of factors which have historically contributed to Aboriginal marginalisation in Australian society. Colonialism and associated dispossession are identified as the main contributors to historical and contemporary marginalisation of Aboriginal people in Australia. Inherent in colonialism were scientific racism, institutional racism, structural violence and cultural violence. These remain embedded in the fabric of Australian society and continue to influence not only the daily lives, but also the long term life chances of Aboriginal people. The impact of these factors on Aboriginal participation in policy formulation and education is examined within a critical theory framework. Cultural Safety, a concept developed in New Zealand in relation to health service delivery, offers a different approach to improving service delivery to Aboriginal Australians. The practice of Cultural Safety can reduce the power imbalances created by colonialism and its application to Aboriginal education is a major focus of this portfolio.Books on Demand GmbH, Überseering 33, 22297 Hamburg 256 pp. Englisch.

Taschenbuch. Condizione: Neu. Neuware -Foster makes a compelling case for ethical teaching in terms of resistance to bureaucratic demands and subversion by reason of conscience. Out of the dyadic tension between individual freedom and collective norms there is a clear pathway to more ethical space in the classroom. Foster uses Martin Buber's notion of dialogical relations and extends it to three levels: the intrapersonal, interpersonal and systemic. The teacher who truly stands in authentic relationships with his students will have to experience the tension of resisting unethical power at each level in order to free up relational space in the classroom. As a result, formal evaluation practices in education will have to be resisted by the ethically-minded teacher.Books on Demand GmbH, Überseering 33, 22297 Hamburg 268 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This paper empirically examines the determinants and the credit market implication of firms' decision to classify noncontrolling interests in the liability versus mezzanine section of the balance sheet. I hypothesize and find that firms with greater exposure to litigation risk from noncontrolling shareholders and firms with more serious information asymmetry problems are more likely to conservatively classify noncontrolling interests as a liability to mitigate agency costs. However, consistent with more serious agency conflicts due to controlling ownership, I predict and find that family firms are more likely to adopt the mezzanine classification. After controlling for the endogeneity of firms' classification choice, I find that firms adopting liability classification have higher credit ratings. This is consistent with my hypothesis that creditors are more likely to favorably assess the credit risk of companies that conservatively classify claims on their balance sheet. 72 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The study analyses the dynamics of productivity growth at the micro level in Finnish manufacturing industries. It is shown that productivity-enhancing restructuring (so-called 'creative destruction') has played a crucial role especially since the mid-1980s. Empirical evidence is provided that R&D efforts and exposure to global competition through imports and exports have affected positively with a few years' lag. The results for R&D are in accordance with the views that innovations and technological progress entail experimentation, selection and reallocation of resources at the micro level that are important for economic development. An increase in productivity divergence seems to precede increases in creative destruction. However, at the same time creative destruction also compresses productivity dispersion by cleansing low productivity units. The positive effect of international trade, in turn, points to the importance of product market competition which is emphasised in the recent theoretical literature. Finally, the main part of productivity-enhancing restructuring can be attributed to newly established plants, which indicates the importance of entrants to creative destruction. 240 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This paper applies multivariate and econometrictechniques on cross-sectional data for Malawi toidentify development pathways for poverty reduction,investigates their determinants and welfareimplications. The study identifies three pathways:-non-farm/non-food, forestry/livestock and tobaccopathways. Non-farm/non-food pathway is associatedwith lower landholdings and close proximity to outputmarkets. This pathway increases income inequality butno effect on household welfare. Forestry/livestockpathway is associated with the poor and olderhouseholds in remote areas with limited marketaccess. Although this pathway reduces the overallwelfare, it reduces income inequality amonghouseholds. Tobacco pathway is associated withmale-headed, richer households with credit access, inhighly populated areas closer to forests. Thispathway increases both welfare and income inequalityamong households. From the policy perspective, theseresults proposes forestry/livestock pathway as apro-poor, rural development strategy. This calls forthe promotion of integrated forestry/livestocksystems and market development for forestry andlivestock products. 92 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Mitigation techniques are currently being sought to ensure public safety in the event of intentional or accidental explosions. Building material fragmentation is a major cause of human injury during such events. One of the most common methods of construction in buildings is the use of masonry walls however; these walls are extremely vulnerable to blast pressure resulting in collapse, fragmentation, and severe injury to occupants. Blast tests and computational finite element models have shown significant improvement in the behavior of these walls when retrofitted with polymer or metallic membranes. But the cost of blast tests and high fidelity computational models make them impractical for day-to-day design. The research presented in this book developed resistance functions for three different scenarios of membrane retrofit unreinforced concrete masonry walls to lateral pressure. These functions were further coupled with single degree of freedom systems to predict the wall response to blast loads. This book provides a practical toolfor the design of membrane retrofit masonry walls exposed to lateral pressures such as wind and blast. 72 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The books assesses quality of HIV/AIDS health information system (IS) in developing countries using a Tanzanian case. It is revealed that the system, practised in Tanzania is not robust enough to fulfil the criterion of effectiveness in providing information that should be used in some socioeconomic decision making. The book recommends that an elaborate information systems to collect quality HIV/AIDS data be put in place from the national level to village level. For without quality HIV/AIDS information systems there is a danger of mis-estimating the degree of the epidemic. For example, relying on the current antenatal surveillance information may not be a tenable strategy because the sample used is not representative of the population to a good extent. This emanates from the fact that the women used in the sample should have participated in non- protective sex to become pregnant. 88 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Recommender systems already exist in a variety of item domains: entertainment, commerce, news and more. One should expect these systems to become more useful and essential as knowledge volume rapidly grows. The book describes a unique research, demonstrating that the likelihood that users of a social collaborative system would accept recommendations from recommender systems depends on the type of group that made the recommendations and on the users' involvement in the formation of that group. A longitudinal analysis indicates a positive learning curve for experienced users, who acquire a tendency to prefer 'friends group' over 'neighbors group' as their experience with the system increases. Also, users chose their own group to participate in the advising group significantly more than other groups. The main implication of these findings for the development of future recommender systems is to enhance the involvement of recommendation seekers in the process of forming the advising group. Also, developers of recommender systems should consider increasing users' control over relevant characteristics of the members of this group. 220 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The state of the art in integrated optics comprises planar waveguides that are limited to two dimensions. Multiphoton photosensitivity induced by focused ultrashort laser pulses deep into the bulk of transparent materials is an effective tool to make guided wave optics in these media, therefore promising true 3-D guided wave optic capability. In the past decade, various amorphous media were used as the target material in these investigations, but little attention was paid to crystalline media. This book presents in-depth studies of two optically important crystals, namely lithium niobate and silicon. It presents a three-step picture for the process of bulk ultrafast laser matter interaction, which will be affected by parameters of a 7-D space. This interpretation leads to recognizing the importance of three parameters, namely wavelength, polarization and pulse width that were mostly overlooked previously. Having had control over this 7-D parameter space, ultrafast laser written waveguides in lithium niobate exhibiting losses as low as 0.6 dB/cm and formed at a rate of 46 mm/s, a 500-fold improvement of fabrication speed over concurrent studies, are presented. 116 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Traumatic patellar dislocations are considered to be a consequence of active lifestyle and defined as acute ligamentous knee injury. The management of a primary traumatic patellar dislocation has been controversial. The medial patellofemoral ligament (MPFL) has been recognized as the primary medial stabilizer of the patella. This thesis book investigates the incidence, risk factors initial management of primary traumatic patellar dislocation, the long-term results of MPFL reconstruction and the clinical significance of the MPFL injury in primary traumatic patellar dislocation. The results of the studies of this thesis disclosed that primary traumatic patellar dislocation is a common knee injury. To explore the clinical significance of the MPFL injury location, the magnetic resonance imaging evaluation proved that a femoral avulsion of the MPFL predicted subsequent instability and lower return to preinjury level of activity than other MPFL injury locations. 120 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The simple three-node plate bending element using Moving Least Square (MLS) shape functions is developed to model Mindlin plate problems. Using MLS, the shape functions are no longer tied to the element structure that otherwise limits the global smoothness of the approximate fields. In addition, in the case of extremely thin plates, using MLS allows a perfect match of the fields of the displacement derivative and the normal rotation, thus having an innate capability to satisfy Kirchhoff's hypothesis exactly. With this field matching strategy, numerical tests demonstrate a complete absence of shear locking. In addition, the method provides exceptionally accurate results for both displacement and stress distributions over a wide range of plate aspect ratios. 68 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This monograph describes the development of novel NT and DpT series aroylhydrazone and thiosemicarbazone iron chelators for the treatment of cancer. It neatly reviews the role of iron in cancer and the development of chelators for cancer treatment before describing the synthesis and biological activity of the NT and DpT series of chelators in both in-vitro and in-vivo models of cancer. The authors conclude that the DpT series, in particular, may be clinical potential in the treatment of cancer. 232 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This book examines the actors' power relations in the Rural Water Supply and Sanitation Support Programme (RWSSSP) in Nepal, often cited among the most prominent successes of Finnish development aid. I study this case through analysing actors' conceptions, roles and motivations as well as conflicts related to the programme. This work delves into the roles and power relations of different actors, local, national and international, in the programme. It seeks to answer questions like: Was there donor domination or were the consultants dictating the practices and the representation of the programme What about the roles of local people and local government, often regarded less powerful but much promoted in the development debate and stated principles during the last few decades This work also analyses the different actors' conceptions of development and of success of a development programme. This analysis should help development researchers and professionals to better understand the roles and power relations in aid and to improve their conceptions and practices. The books should also be of interest to anyone concerned with development issues and Nepal. 152 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Over the last few years, the use of friction stir welding as a manufacturing tool has grown to include many industries. These include the aerospace, land transportation, and marine industries to name a few. In this work an in situ heat treatment is purposed by welding the coupon in water. The objective of this research was to experimentally quantify the material properties as well as the forces unique to immersed friction stir welding as compared to conventional friction stir welding performed in air on AA6061. Two experiments were preformed at the Vanderbilt Welding Automation Laboratory using different tools and weld coupons for conventional friction stir welds and immersed friction stir welds. The results include comparison of planar and axial forces, moments or torques, welding temperatures, optical microscopy of the weld zone, and ultimate tensile strength at optimal welding conditions. A steady-state three dimensional model of the FSW tool was also developed for the purpose of understanding the contribution of quench rates on temperature distribution. This analysis shows that in situ heat treatment achieves greater weld strengths for industries using FSW. 88 pp. Englisch.