In man-machine communication, there is a relationship between what may be described as tacit (human) and explicit (machine) knowledge. The tacit lies in practice and the explicit in the formulation of the processes and content of this practice. However, when a human communicates with another human face to face, we may describe them as communicating aspects of the tacit and explicit dimension of their knowledge, i.e. the expression and its background of meaning for the particular situation. When this is unsuccessful (...) in being communicated, some mediator (not necessarily a third person) is needed to provide the bridge for the particular discrepant aspects of the tacit and explicit dimensions to meet. This is achieved by making the tacit nature of the discrepancy in the communication explicit to both participants such that they both understand the background to their discrepancy. Once they become aware, it is possible for them to begin to resolve it. (shrink)

To understand the role of expert systems as a medium for transferring knowledge and skills within organisations requires an understanding of the nature of expertise within working life contexts. Central to this issue of transfer is the debate on the nature of tacit/implicit knowledge and the problem of formalising it in explicit form. This paper considers the British approach to the development of knowledge-based systems, which is regarded as being predominantly rationalistic, and compares it with the Scandinavian approach, which is (...) regarded as being predominantly humanistic. The paper proposes that crucial to the debate on the transfer of knowledge and skills is the development of expert systems as communications media which aims at enhancing and sharing the knowledge and skills of users. A human-centred approach for the future is proposed which brings the above two traditions together thereby providing a developmental framework for knowledge based systems. (shrink)

Socio-ethics covers the relation of the individual with the group and with society, as the individual acquires the skills for social life with others and the conduct of ‘normal responsible behaviour’ (Leal in AI Soc 9:29–32, 1995) that guides moral action. For a consideration of what it means to be socially skilled in everyday human interaction and the ethical issues arising from the new conditions of interaction that come with the integration of intelligent interactive artefacts, we will provide an analysis (...) at multiple levels of these phenomena and draw on a variety of application domains, for example, healthcare and interactive media. (shrink)

What constitutes our human capacity to engage and be in the same frame of mind as another human? How do we come to share a sense of what ‘looks good’ and what ‘makes sense’? How do we handle differences and come to coexist with them? How do we come to feel that we understand what someone else is experiencing? How are we able to walk in silence with someone familiar and be sharing a peaceful space? All of these aspects are (...) part of human ‘interaction’. In designing interactive technologies designers have endeavoured to explicate, analyse and simulate, our capacity for social adaptation. Their motivations are mixed and include the desires to improve efficiency, improve consumption, to connect people, to make it easier for people to work together, to improve education and learning. In these endeavours to explicate, analyse and simulate, there is a fundamental human capacity that is beyond technology and that facilitates these aspects of being, feeling and thinking with others. That capacity, we suggest, is human entrainment. This is our ability to coordinate the timing of our behaviours and rhythmically synchronise our attentional resources. Expressed within the movements of our bodies and voices, it has a quality that is akin to music. In this paper, disparate domains of research such as pragmatics, social psychology, behaviourism, cognitive science, computational linguistics, gesture, are brought together, and considered in light of the developments in interactive technology, in order to shape a conceptual framework for understanding entrainment in everyday human interaction. (shrink)

Skilled cooperative action means being able to understand the communicative situation and know how and when to respond appropriately for the purpose at hand. This skill is of the performance of knowledge in co-action and is a form of social intelligence for sustainable interaction. Social intelligence, here, denotes the ability of actors and agents to manage their relationships with each other. Within an environment we have people, tools, artefacts and technologies that we engage with. Let us consider all of these (...) as dynamic representations of knowledge. When this knowledge becomes enacted, i.e., when we understand how to use it to communicate effectively, such that it becomes invisible to us, it becomes knowledge in co-action. A challenge of social intelligence design is to create mediating interfaces that can become invisible to us, i.e., as an extension of ourselves. In this paper, we present a study of the way people use surfaces that afford graphical interaction, in collaborative design tasks, in order to inform the design of intelligent user interfaces. This is a descriptive study rather than a usability study, to explore how size, orientation and horizontal and vertical positioning, influences the functionality of the surface in a collaborative setting. (shrink)

Our everyday interactions increasingly involve both embodied face-to-face communication and various forms of mediated and distributed communication such as email, skype, and facebook. In daily face-to-face communications, we are connected in rhythm and synchrony at multiple levels ranging from the moment-by-moment continuity of timed syllables to emergent body and vocal rhythms of pragmatic sense-making. Our human capacity to synchronize with each other may be essential for our survival as social beings. Moving our bodies and voices together in time embodies a (...) potent pragmatic purpose that of being together. In this synchrony of self with other, witnessing and being present become part of each other. There is growing research into how rhythm and synchrony operate in embodied face-to-face interaction and this provides parameters for investigating the relations and differences in how we connect and are socially present in the embodied and distributed settings, and understanding the effect of one setting upon the other. This paper explores the arena of research into rhythm in human interaction, musical and linguistic, with a focus on the movements of body and voice. It draws together salient issues and ideas that would form the basis for a framework of rhythm in embodied interaction. (shrink)

In this paper the concept of knowledge in seen as embodying dialogue and learning in a shared practice. Sharing a practice involved sharing representations of practice. This necessitates the sharing of experiential knowledge at various levels and in various forms. It is proposed that participatory design can therefore be seen as consisting in dialogue and learning for the development of future practices and representations. The discussion in this paper is situated within the domain of landscape architecture. A study is made (...) of their co-operative practices, which are evolved, in order to show the need for participatory embodied activity (whether expressed verbally or physically) in sharing practical knowledge (e.g. of aesthetic judgement). (shrink)

This article presents the results of a study that investigated the roles that religiosity and ones money ethic play in determining consumer attitudes/beliefs in various situations regarding questionable consumer practices. One dimension of religiosity – intrinsic religiousness – was studied. Four separate dimensions of a money ethic scale were initially examined, but only one was used in the final analyses. Results indicated that both intrinsic religiousness and one’s money ethic were significant determinants of most types of consumer ethical beliefs.

This article presents the results of an exploratory study that investigated the role that religiosity plays in determining consumer attitudes/beliefs in various situations regarding questionable consumer practices. Two dimensions of religiosity – intrinsic and extrinsic religiousness – were studied. Results indicated that an intrinsic religiousness was a significant determinant of consumer ethical beliefs, but extrinsic religiousness was not related to those beliefs.

We propose a framework for including information‐processing bounds in rational analyses. It is an application of bounded optimality (Russell & Subramanian, 1995) to the challenges of developing theories of mechanism and behavior. The framework is based on the idea that behaviors are generated by cognitive mechanisms that are adapted to the structure of not only the environment but also the mind and brain itself. We call the framework computational rationality to emphasize the incorporation of computational mechanism into the definition of (...) rational action. Theories are specified as optimal program problems, defined by an adaptation environment, a bounded machine, and a utility function. Such theories yield different classes of explanation, depending on the extent to which they emphasize adaptation to bounds, and adaptation to some ecology that differs from the immediate local environment. We illustrate this variation with examples from three domains: visual attention in a linguistic task, manual response ordering, and reasoning. We explore the relation of this framework to existing “levels” approaches to explanation, and to other optimality‐based modeling approaches. (shrink)

We explore the idea that eye-movement strategies in reading are precisely adapted to the joint constraints of task structure, task payoff, and processing architecture. We present a model of saccadic control that separates a parametric control policy space from a parametric machine architecture, the latter based on a small set of assumptions derived from research on eye movements in reading (Engbert, Nuthmann, Richter, & Kliegl, 2005; Reichle, Warren, & McConnell, 2009). The eye-control model is embedded in a decision architecture (a (...) machine and policy space) that is capable of performing a simple linguistic task integrating information across saccades. Model predictions are derived by jointly optimizing the control of eye movements and task decisions under payoffs that quantitatively express different desired speed-accuracy trade-offs. The model yields distinct eye-movement predictions for the same task under different payoffs, including single-fixation durations, frequency effects, accuracy effects, and list position effects, and their modulation by task payoff. The predictions are compared to—and found to accord with—eye-movement data obtained from human participants performing the same task under the same payoffs, but they are found not to accord as well when the assumptions concerning payoff optimization and processing architecture are varied. These results extend work on rational analysis of oculomotor control and adaptation of reading strategy (Bicknell & Levy, ; McConkie, Rayner, & Wilson, 1973; Norris, 2009; Wotschack, 2009) by providing evidence for adaptation at low levels of saccadic control that is shaped by quantitatively varying task demands and the dynamics of processing architecture. (shrink)

Utility maximization is a key element of a number of theoretical approaches to explaining human behavior. Among these approaches are rational analysis, ideal observer theory, and signal detection theory. While some examples of these approaches define the utility maximization problem with little reference to the bounds imposed by the organism, others start with, and emphasize approaches in which bounds imposed by the information processing architecture are considered as an explicit part of the utility maximization problem. These latter approaches are the (...) topic of this issue of the journal. (shrink)

This article presents the results of a study that investigated the roles that one's money ethic, religiosity and attitude toward business play in determining consumer attitudes/beliefs in various situations regarding questionable consumer practices. Two dimensions of religiosity - intrinsic and extrinsic religiousness - were studied. A global scale of money ethic was examined, as was a global measure of attitude toward business. Results indicate that both types of religiosity as well as one's money ethic and attitude toward business were significant (...) determinants of at least some types of consumer ethical beliefs. (shrink)

It is widely recognized that the Web contributes to user polarization, and such polarization affects not just politics but also peoples’ stances about public health, such as vaccination. Understanding polarization in social networks is challenging because it depends not only on user attitudes but also their interactions and exposure to information. We adopt Social Judgment Theory to operationalize attitude shift and model user behavior based on empirical evidence from past studies. We design a social simulation to analyze how content sharing (...) affects user satisfaction and polarization in a social network. We investigate the influence of varying tolerance in users and selectively exposing users to congenial views. We find that (1) higher user tolerance slows down polarization and leads to lower user satisfaction; (2) higher selective exposure leads to higher polarization and lower user reach; and (3) both higher tolerance and higher selective exposure lead to a more homophilic social network. (shrink)

We propose a stochastic modification of the Schrödinger–Newton equation which takes into account the effect of extrinsic spacetime fluctuations. We use this equation to demonstrate gravitationally induced decoherence of two gaussian wave-packets, and obtain a decoherence criterion similar to those obtained in the earlier literature in the context of effects of gravity on the Schrödinger equation.

Real life applications and case studies -- Commmunication and computing systems -- Mobile and ubiquitous computing -- Electrical and electronics systems -- Green computing and e-waste minimizations -- Image processing and applications -- Material science & technology -- Wired and wireless networks.

The conception of saviour siblings using preimplantation genetic diagnosis coupled with human leukocyte antigen typing or HLA typing alone is controversial and receives a wide divergence of legal responses among countries around the world. The resulting child conceived through this procedure is dubbed a ‘saviour sibling’ as the child can potentially act as a compatible donor for an elder ailing sibling who needs a haematopoietic stem cell transplantation. At present, the acceptability of this procedure in Malaysia is ambiguous as there (...) is no specific statute governing assisted reproductive technology, and the guideline issued by the Malaysian Medical Council does not expressly address this issue. The ethical arguments relating to the conception of saviour siblings in the current literature are mainly thought to reflect a liberal viewpoint which is predominantly Western in nature. This paper seeks to explore the perception of selected key stakeholders on the acceptability of and ethical concerns related to this procedure in the Malaysian context. The findings indicate that stakeholders generally support the conception of saviour siblings and some of their concerns echo the Western viewpoint. Interestingly, many were highly anxious about its economic implication, which is rarely discussed in the current literature on saviour siblings. (shrink)

This article presents the results of a study that investigated the roles that one’s money ethic, religiosity and attitude toward business play in determining consumer attitudes/beliefs in various situations regarding questionable consumer practices. Two dimensions of religiosity – intrinsic and extrinsic religiousness – were studied. A global scale of money ethic was examined, as was a global measure of attitude toward business. Results indicate that both types of religiosity as well as one’s money ethic and attitude toward business were significant (...) determinants of at least some types of consumer ethical beliefs. (shrink)

Intentions are an important concept in Artificial Intelligence and Cognitive Science. We present a formal theory of intentions and beliefs based on Discourse Representation Theory that captures many of their important logical properties. Unlike possible worlds approaches, this theory does not assume that agents are perfect reasoners, and gives a realistic view of their internal architecture; unlike most representational approaches, it has an objective semantics, and does not rely on an ad hoc labeling of the internal states of agents. We (...) describe a minimal logic for intentions and beliefs that is sound and complete relative to our semantics. We discuss several additional axioms, and the constraints on the models that validate them. (shrink)

The crystallization behaviour of Fe 70.8 Nb 3.7 Cu 1 Al 2.7 Mn 0.7 Si 13.5 B 7.6 alloy prepared in the form of amorphous ribbons by melt-spinning technique was studied using differential scanning calorimetry and the temperature variation in resistivity. An X-ray diffaction and transmission electron microscopy study showed the formation of f -Fe and/or Fe 3 nanoparticles after the first stage of crystallization. The activation energy for this nanophase formation was 68 kcal mol m 1 . The brittleness (...) of the alloy increased with the formation of nanoparticles after heat treatment. Superior soft magnetic properties were achieved when the material was heat treated at 790 K for 15 min. The particle size at the optimum heat treatment condition for superior soft magnetic properties was found to be 6.0 - 0.5 nm which was less compared than for the Fe-Nb-Cu-Si-B system. The observed coercivity value at the optimum heat treatment condition was found to be 0.32 A m m 1 . The presence of Al in the alloy reduced the particle size and the magnetic anisotropy energy of the system, which resulted in superior soft magnetic properties of the heat-treated materials. (shrink)

Kireet Joshi, b. 1931, Indian philosopher and educationist; contributed articles.

In the business world, one of the key challenges is how to survive in ever changing business environments and outperforming the competitors, while keeping the operational cost at minimum and profits at maximum level. In other words, this can be described as the problem of improving operational efficiency and reducing cost. Over the past few years due to global financial challenges, it has become even more important to improve the operational efficiency and reduce costs to survive through these tough conditions. (...) Like other successful implementations of Lean philosophy, especially in automobile, aerospace, steel and healthcare, it can be applied in cable manufacturing to achieve competitive, sustainable and profitable processes. The main focus of Lean philosophy is to create value for the stakeholders and end customers by reducing the non-value added activities or waste, and laying a strong foundation towards sustainable growth, by focusing on continuous process improvement. The overall philosophy provides a focused approach for continuous process improvement and the targeting of a variety of tools and methods to bring improvements. This paper presents case studies for Lean scheduling of manufacturing processes and exemplify how Lean scheduling processes allow organisations to maintain the continuous improvement philosophy. This paper also addresses the key elements of rescheduling processes i.e. how to schedule and when to schedule. Further, the paper will exemplify key benefits of Lean scheduling and how the Cable industry could benefit from the proposed approach. (shrink)

The advancement of human reproductive technology has made it possible for parents with a child affected by a haematological disorder to select and bring into being, a prospective child who can act as a matched stem cell donor. This can be done through the use of preimplantation genetic diagnosis (PGD) coupled with human leukocyte antigen (HLA) typing (PGD-HLA typing), or HLA tying as a standalone procedure, where a healthy embryo, which is an HLA match to the existing sick sibling, is (...) chosen for implantation. The creation of such a sibling (saviour sibling) is normally taken as a last resort when there is no related or unrelated matched donor. While the conception of a saviour sibling may serve as a reliable and realistic treatment option for the ailing child, it also poses new moral questions that challenge a religiously pluralistic society such as Malaysia. The use of PGD-HLA typing may be controversial as it involves creating a life to save a life, selection of compatible human embryos and destruction of the unselected embryos. At present, there is no legal framework regulating the conception of saviour siblings. The development of ethically sound and appropriate local laws and policies should consider the views of religious communities, especially when it involves a controversial subject such as the conception of saviour siblings. This article seeks to explore the perceptions of religious scholars and representatives of the major religions professed and practised in Malaysia, namely Islam, Buddhism, Christianity and Hinduism, through qualitative interviews. (shrink)

Studies on Neurospora chromosome segment duplications (Dps) performed since the publication of Perkins's comprehensive review in 1997 form the focus of this article. We present a brief summary of Perkins's seminal work on chromosome rearrangements, specifically, the identification of insertional and quasiterminal translocations that can segregate Dp progeny when crossed with normal sequence strains (i.e., T × N). We describe the genome defense process called meiotic silencing by unpaired DNA that renders Dp‐heterozygous crosses (i.e., Dp × N) barren, which provides (...) a basis for identifying Dps, and discuss whether other processes also might contribute to the barren phenotype of Dp × N and Dp × Dp crosses. We then turn to studies suggesting that large Dps (i.e., >300 kbp) can allow smaller gene‐sized duplications to escape another genome defense process called repeat‐induced point mutation (RIP), possibly by titration of the RIP machinery. Finally, we assess whether in natural populations dominant RIP suppressor Dps provide an “RIP‐free” niche for evolution of new genes following the duplication of existing genes. (shrink)