American anthropology has focused on issues related to race from the start of the discipline. From past work designed to categorize humans into phenotype-based categories to current work to undo those categorizations, many anthropologists consider race to be one of the most important topics for students to learn. In this dissertation, I use in-depth ethnographic case studies consisting of interviews, observations, and focus groups, to learn about the way in which anthropologists at four institutions of higher education teach the topic to students in their introductory, four-field general anthropology class. I found that anthropologists are committed to sharing anthropological perspectives with the public through teaching, while their students look for engaging and interesting teaching. I discuss the general acceptance by instructors of introductory courses of the idea that race does not have a biological basis in humans but is in fact a social construction; that in general, professors find this topic to be a critical one for students to learn; that there are a variety of successful strategies that can be employed to teach race to students; and that while students grasp the basic message, they remain confused about the social context of race and racism. Additionally, I conducted interviews with experts on the topic of race to provide context for the current anthropological perspective. I conclude that there is more research to be done on the teaching of anthropology, that the anthropological message about race must be stated in a more nuanced way, that the four-field introductory course is valuable and should be preserved, and that anthropology needs to further incorporate racism (the systematic mistreatment of minorities that is built into the social structure of the United States) into the discussion on race. Future research directions include scaling the research up to observe teaching practices across the country, conducting survey research to understand teaching practices and attitudes, further exploring the generalizability of these findings, and testing the effectiveness of teaching methods described herein using pre- and post- tests. Two potential study limitations include the majority White sample and that the study was confined to the American South.

Experiences in the early years of life are increasingly recognised as significant predictors of long-term cognitive and psychosocial behaviour. This thesis focuses on one aspect of early development: the cultural identity of the young child and investigates the influence of continuity of practice between home and the child care centre in this development. The use of child care services for very young children has increased dramatically in the past two decades. For the first time in history there may be more babies aged 0-3 years in care situations than babies who are cared for at home - this impacts upon the child’s micro-culture (individual, unconscious practices guided by beliefs, norms and values) and macro-culture (ritualistic, symbolic behaviour, often conscious which is tied to belonging to an ethnic group). This study investigates the way in which child care centres contribute to the development of micro and macro-cultural identity in very young children. This study was originally designed to increase the knowledge base about the ways in which interactions with children (particularly in relation to sleep and feeding micro-cultural practices) differ between home and child care service and the implications of these differing practices. As the study progressed a new focus was developed and evolved into an analysis of communication processes between parents and staff and the effects of those communication processes. Qualitative methods on non-participant observation, semi-structured interviews and semi-structured questionnaires were used to address the research questions. Recommendations from the study focus on setting level and policy issues. The early childhood sector is called on to redress notions around communication and partnership building with parents / Doctor of Philosophy (PhD)

ABSTRACT This thesis examines phylogenetic patterns in three New Zealand amphipod taxa in relation to current geographic distributions and historical climatic (e.g. glaciation, marine inundation) and geological (e.g. mountain building) events using DNA sequencing and distributional data. It also examines how recognition behaviour can be used to delineate potential species boundaries and to assess the role of sexual selection. The endemic genus Phreatogammarus has been found in only a limited number of sites and is not very abundant. An analysis of the genetic variation of two species within the genus using allozyme electrophoresis revealed high levels of genetic differentiation among populations but low levels within populations. This suggested that limited dispersal occurred among habitats with one population possibly representing a cryptic species. The endemic freshwater genus Paraleptamphopus is thought to contain a large number of undescribed species with a number of these existing in small waterbodies such as seepages. Examination of the phylogeographic patterns using both mtDNA (CO1) and nuclear DNA (28S) showed that a number of distinct genetic lineages exist, with CO1 revealing 21 haplotypes with genetic distance of over 20%. Using a molecular clock rate of 2.4%, most haplotypes diverged approximately 8-12 million years ago during the Miocene era, possibly as a result of greater land availability increasing habitat diversity or by allopatric speciation. Morphological and genetic differences were not congruent, with morphologically similar taxa appearing among highly genetically distinct lineages, and some morphologically distinct forms appearing within single lineages. The distribution and habitat variables of 419 sites were analysed to determine what was affecting the presence or absence of Paraleptamphopus. The presence of native vegetation in catchments had a positive affect on Paraleptamphopus distribution suggesting that large anthropogenic changes in catchment vegetation could have a negative effect on their abundance. I found smaller waterbodies to be more important than larger ones highlighting the need to study such sites as rare taxa may be ignored. A better understanding is needed on the role of small waterbodies in promoting overall species diversity in catchments. Examination of Paracalliope fluviatilis phylogenetic patterns using the mtDNA gene CO1 showed that a number of separate clades existed suggesting long term isolation and limited dispersal among catchments. Due to the large genetic divergences among some populations there was the possibility that cryptic species might exist. Species recognition experiments were conducted on seven populations to help determine whether cryptic species were present. For the three most genetically divergent crosses there was bias against inter-population pairings, suggesting that there were between two or three separate species. Using a combined field and laboratory approach, size assortative mating was examined in Paracalliope fluviatilis. The field study showed positive size assortative mating and that larger females carried more eggs, suggesting they were more fecund. A series of laboratory experiments examining four existing theories explaining the phenomenon found that none adequately explained positive size assortative mating in P. fluviatilis. I therefore presented two new explanations to explain size assortative mating: a combination of female resistance and size-related variation in a male's capacity to amplex larger females or a form of indirect intra-sexual competition.

This thesis explores the ways in which linguistic diversity is represented, articulated and theorised in the context of the promotion of Breton, a minority or lesser-used language spoken in the region of Brittany in western France. In doing so it seeks to provide a critical analysis of the changing practice of Breton and the different ways in which the language is mobilised as a vehicle for personal and collective identity. It provides a historical reading of the development of a sense of Breton identity through the language, locating the changing practice of Breton, particularly following the revival movement that began in the 1960s, in a socio-political and socio-cultural context. In tracking these functional and symbolic transformations of Breton, the thesis takes a theoretical approach that can broadly be described as belonging to the discipline of critical language studies. Working from this critical perspective, it explores the way different language ideologies frame issues of linguistic diversity and examines the way notions of language, linguistic diversity and identity are epistemologically constructed. In doing so it argues the need for greater critical awareness of the effects these ideologies may have on diversity, with a view to developing more effective ways of promoting diverse language practices and linguistic identities in Brittany.

Master of Philosophy / Wireless technology is experiencing spectacular developments, due to the emergence of interactive and digital multimedia applications as well as rapid advances in the highly integrated systems. For the next-generation mobile communication systems, one can expect wireless connectivity between any devices at any time and anywhere with a range of multimedia contents. A key requirement in such systems is the availability of high-speed and robust communication links. Unfortunately, communications over wireless channels inherently suffer from a number of fundamental physical limitations, such as multipath fading, scarce radio spectrum, and limited battery power supply for mobile devices. Cooperative diversity (CD) technology is a promising solution for future wireless communication systems to achieve broader coverage and to mitigate wireless channels’ impairments without the need to use high power at the transmitter. In general, cooperative relaying systems have a source node multicasting a message to a number of cooperative relays, which in turn resend a processed version message to an intended destination node. The destination node combines the signal received from the relays, and takes into account the source’s original signal to decode the message. The CD communication systems exploit two fundamental features of the wireless medium: its broadcast nature and its ability to achieve diversity through independent channels. A variety of relaying protocols have been considered and utilized in cooperative wireless networks. Amplify and forward (AAF) and decode and forward (DAF) are two popular protocols, frequently used in the cooperative systems. In the AAF mode, the relay amplifies the received signal prior to retransmission. In the DAF mode, the relay fully decodes the received signal, re-encodes and forwards it to the destination. Due to the retransmission without decoding, AAF has the shortcoming that noise accumulated in the received signal is amplified at the transmission. DAF suffers from decoding errors that can lead to severe error propagation. To further enhance the quality of service (QoS) of CD communication systems, hybrid Automatic Repeat-reQuest (HARQ) protocols have been proposed. Thus, if the destination requires an ARQ retransmission, it could come from one of relays rather than the source node. This thesis proposes an improved HARQ scheme with an adaptive relaying protocol (ARP). Focusing on the HARQ as a central theme, we start by introducing the concept of ARP. Then we use it as the basis for designing three types of HARQ schemes, denoted by HARQ I-ARP, HARQ II-ARP and HARQ III-ARP. We describe the relaying protocols, (both AAF and DAF), and their operations, including channel access between the source and relay, the feedback scheme, and the combining methods at the receivers. To investigate the benefits of the proposed HARQ scheme, we analyze its frame error rate (FER) and throughput performance over a quasi-static fading channel. We can compare these with the reference methods, HARQ with AAF (HARQ-AAF) and HARQ with perfect distributed turbo codes (DTC), for which correct decoding is always assumed at the relay (HARQ-perfect DTC). It is shown that the proposed HARQ-ARP scheme can always performs better than the HARQ-AAF scheme. As the signal-to-noise ratio (SNR) of the channel between the source and relay increases, the performance of the proposed HARQ-ARP scheme approaches that of the HARQ-perfect DTC scheme.

Master of Philosophy / Wireless technology is experiencing spectacular developments, due to the emergence of interactive and digital multimedia applications as well as rapid advances in the highly integrated systems. For the next-generation mobile communication systems, one can expect wireless connectivity between any devices at any time and anywhere with a range of multimedia contents. A key requirement in such systems is the availability of high-speed and robust communication links. Unfortunately, communications over wireless channels inherently suffer from a number of fundamental physical limitations, such as multipath fading, scarce radio spectrum, and limited battery power supply for mobile devices. Cooperative diversity (CD) technology is a promising solution for future wireless communication systems to achieve broader coverage and to mitigate wireless channels’ impairments without the need to use high power at the transmitter. In general, cooperative relaying systems have a source node multicasting a message to a number of cooperative relays, which in turn resend a processed version message to an intended destination node. The destination node combines the signal received from the relays, and takes into account the source’s original signal to decode the message. The CD communication systems exploit two fundamental features of the wireless medium: its broadcast nature and its ability to achieve diversity through independent channels. A variety of relaying protocols have been considered and utilized in cooperative wireless networks. Amplify and forward (AAF) and decode and forward (DAF) are two popular protocols, frequently used in the cooperative systems. In the AAF mode, the relay amplifies the received signal prior to retransmission. In the DAF mode, the relay fully decodes the received signal, re-encodes and forwards it to the destination. Due to the retransmission without decoding, AAF has the shortcoming that noise accumulated in the received signal is amplified at the transmission. DAF suffers from decoding errors that can lead to severe error propagation. To further enhance the quality of service (QoS) of CD communication systems, hybrid Automatic Repeat-reQuest (HARQ) protocols have been proposed. Thus, if the destination requires an ARQ retransmission, it could come from one of relays rather than the source node. This thesis proposes an improved HARQ scheme with an adaptive relaying protocol (ARP). Focusing on the HARQ as a central theme, we start by introducing the concept of ARP. Then we use it as the basis for designing three types of HARQ schemes, denoted by HARQ I-ARP, HARQ II-ARP and HARQ III-ARP. We describe the relaying protocols, (both AAF and DAF), and their operations, including channel access between the source and relay, the feedback scheme, and the combining methods at the receivers. To investigate the benefits of the proposed HARQ scheme, we analyze its frame error rate (FER) and throughput performance over a quasi-static fading channel. We can compare these with the reference methods, HARQ with AAF (HARQ-AAF) and HARQ with perfect distributed turbo codes (DTC), for which correct decoding is always assumed at the relay (HARQ-perfect DTC). It is shown that the proposed HARQ-ARP scheme can always performs better than the HARQ-AAF scheme. As the signal-to-noise ratio (SNR) of the channel between the source and relay increases, the performance of the proposed HARQ-ARP scheme approaches that of the HARQ-perfect DTC scheme.

<p>Kreativitet har blivit allt viktigare inom dagens organisationer och forskningen har börjat intressera sig för hur kreativiteten påverkas av nominala eller riktiga grupper, samt hur dessa grupper är sammansatta. Syftet med undersökningen var att se hur kreativiteten i arbetsteam påverkas av mängden yrkesgrupper som ingår, samt att se hur externa faktorer som ledarskap och organisationskultur påverkar. I denna studie intervjuades 14 anställda inom olika branscher om deras syn på kreativitet och det visade sig finnas skillnader mellan grupperna. Arbete i grupp kan ge kreativiteten en annan kvalité och heterogenitet förknippades med mer dynamik och kreativa strategier. Samtliga respondenter i den heterogena gruppen var överens om att arbete i en blandad grupp var en styrka för kreativiteten.</p>

<p>The purpose of this thesis was to open up the black boxed TMT process by examining the interaction between TMT members using cognitive and demographic diversity variables, and to see how organisational performance could be affected by the process. By opening the process, a model of the process was developed, which can be tested in further research. The major findings are that there are some aspects that stand out; the CEO and the functional responsibilities that influence the process. Further, the integration within the TMT is not that high, so the upper echelon theory should not be used without considerations on studies where composition is related to organisational performance. These have shown to influence performance in different ways. The functional responsibility has shown to create subgroups that practice problem solving and decision making more frequent than the TMT hence also communicate more.</p>

No description available.

<p>Research on the diversity in the context of internationalization process is rare. Our purpose of this thesis is to conduct a good understanding on diversity of internationalization process in telecommunication industry. Based on Uppsala Internationalization Model (U-Model) of Johanson and Vahlne (1977), we applied a qualitative research method, primary and secondary data collection to perform an empirical study. Afterward we discuss about how organizational diversity, marketing strategy diversity and diversity of core values on Ericsson show up in the process of internationalization. In the conclusion, we put forward our comments on the research problems. Then we also issued a direction on further research.</p>