Past practices: rethinking individuals and agents in archaeology

Archaeologists who seek to examine people's roles in past societies have long assumed, consciously or unconsciously, the existence of individuals. In this study, we explore various concepts and dimensions of ‘the individual’, both ethnographic and archaeological. We show that many protagonists in the debate over the existence of ‘individuals’ in prehistory use the same ethnographic examples to argue their positions. These positions range from the claim that any suggestion of individuals prior to 500 years ago simply projects a construct of western modernity onto the past, to the view that individual identities are culturally specific social constructs, both past and present. Like most contributors to the debate, we too are sceptical of an unchanging humanity in the past, but we feel that thinking on the topic has become somewhat inflexible. As a counterpoint to this debate, therefore, we discuss Bourdieu's concept of habitus in association with Foucault's notion of power. We conclude that experiencing oneself as a living individual is part of human nature, and that archaeologists should reconsider the individual's social, spatial and ideological importance, as well as the existence of individual, embodied lives in prehistoric as well as historical contexts

The Role of Social Identity Inclusiveness and Structure in Intergroup Relations: Individual and Contextual Differences in Ethnic and Religious Minority Group Members

This thesis proposes a conceptual and operational framework to examine how minority group members subjectively construe their ingroup. Four community studies were devised to test this framework, and to examine individual versus contextual differences in ingroup construals. Chapter 1 provides a critical analysis of existing models of multiple social identities. Subsequently, a new conceptual framework is proposed to assess how minority group members construe their ingroup in the context of multiple, cross-cutting group memberships. The subjective combination of multiple ingroups is described in terms of Social Identity Structure (SIS) and Inclusiveness (SII). Chapter 2 introduces a method, the Triple-Crossed Categorisation Task, to measure both constructs. The validity of SII and SIS is assessed in a sample of Turkish Australian Muslim adults (Chapter 3), and adolescents (Chapter 4). Both studies showed SII to be a valid construct, distinct from measures of identification, and positively related to outgroup contact. Moreover, eight different SIS’s were replicated across both studies, further attesting to the validity of the conceptual model. Importantly, across both studies, SII uniquely predicted attitudes toward a range of outgroups. The following chapters examine whether and how Turkish Australian Muslims alter their ingroup construals after exposure to a religious identity threat versus reassurance (Chapter 5), or to a religious versus ethnic identity threat (Chapter 6). In both experiments, SII was not affected by threat. The distribution of SIS’s did show some effects of threat, but the pattern was not consistent across studies. Finally, Chapter 7 discusses these findings in light of the individual and contextual factors surrounding minority members’ ingroup construals. The contributions to the study of multiple social identities, practical implications, limitations, and future directions are discussed as well

Project network models with discounted cash flows. A guided tour through recent developments.

The vast majority of the project scheduling methodologies presented in the literature have been developed with the objective of minimizing the project duration subject to precedence and other constraints. In doing so, the financial aspects of project management are largely ignored. Recent efforts have taken into account discounted cash flow and have focused on the maximalization of the net present value (npv) of the project as the more appropriate objective. In this paper we offer a guided tour through the important recent developments in the expanding field of research on deterministic and stochastic project network models with discounted cash flows. Subsequent to a close examination of the rationale behind the npv objective, we offer a taxonomy of the problems studied in the literature and critically review the major contributions. Proper attention is given to npv maximization models for the unconstrained scheduling problem with known cash flows, optimal and suboptimal scheduling procedures with various types of resource constraints, and the problem of determining both the timing and amount of payments.Scheduling; Models; Model; Discounted cash flow; Cash flow; Project scheduling; Project management; Management; Net present value; Value; Problems; Maximization; Optimal;

Вклад интеллигенции в исследование социальной памяти

An important goal of growth monitoring is to identify genetic disorders, diseases or other conditions that manifest themselves through an abnormal growth. The two main conditions that can be detected by height monitoring are Turner's syndrome and growth hormone deficiency. Conditions or risk factors that can be detected by monitoring weight or body mass index include hypernatremic dehydration, celiac disease, cystic fibrosis and obesity. Monitoring infant head growth can be used to detect macrocephaly, developmental disorder and ill health in childhood. This paper describes statistical methods to obtain evidence-based referral criteria in growth monitoring. The referral criteria that we discuss are based on either anthropometric measurement(s) at a fixed age using (1) a Centile or a Standard Deviation Score, (2) a Standard Deviation corrected for parental height, (3) a Likelihood Ratio Statistic and (4) an ellipse, or on multiple measurements over time using (5) a growth rate and (6) a growth curve model. We review the potential uses of these methods, and outline their strengths and limitations

Modeling anisotropic and rate-dependent plasticity in short-fiber reinforced thermoplastics

In this study, an anisotropic viscoelastic-viscoplastic macro-mechanical model is presented for short-fiber reinforced thermoplastics (SFRT). In injection molding of SFRT, the fiber orientation is influenced by the flow velocity profile which varies throughout the mold. The flow-induced orientation in the microstructure leads to anisotropy in the mechanical response. In addition to the mechanical anisotropy, SFRTs show time dependent behavior because of the thermoplastic matrix. The developed model captures the effects of both material orientation and loading rate on the yield behavior. In this study, uniaxial tests are performed at different strain rates and material orientations with samplescutfrominjectionmoldedplaques. Theexperimentalresultsshowthattheeffects of loading rate and material orientation on the yield are decoupled. The presented model takes advantage of this observation to simplify material characterization. An implicit integration scheme is used for the numerical implementation of the model as a UMAT in ABAQUS. Multiple relaxation times are used in order to capture the nonlinear pre-yield regime. An efficient method for obtaining the model parameters for different modes is proposed. Experimental results are used for validation of the model and a good agreement is observed for the prediction of viscoelastic and viscoplastic behavior

Multiscale modeling of acoustic shielding materials

It is very important to protect high-tech systems from acoustic excitation when operating in a noisy environment. Some passive absorbing materials such as acoustic foams can improve the performance which depends on the interaction of the acoustic wave and the microstructure of the foam