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The purpose of this paper is to show some techniques to perform line contingency screening efficiently.

Computation efficiency and speed are mandatory requirements of contingency screening, especially when multiple outages need to be considered. The classical bounding principle, i.e. the idea that the effects of an outage are restricted to the area where the outage occurs, becomes increasingly difficult to apply to multiple contingencies. In the present work a comprehensive strategy, based on a systematic elimination of non-dangerous outages, is shown to be easily applicable to both single and double contingencies.

Tests show the efficiency of the proposed methods with reference to test systems and to an actual network with up to 800 buses.

The bounding approach is the basis of most efficient contingency screening methods based on the linear dc load flow model. In the present work the method is re-considered to improve computational efficiency. The symmetry of the dc Jacobian and the sparse inverse technique are suitably exploited in the evaluation of line outage distribution factors; this also allows a combination of single and double line contingency screening into a single procedure.

Purpose – This essay attempts to answer the question, “What distinguishes inter-human influence from other forms of influence?”

Design/methodology/approach – Specifying the micro-foundations of social structures in terms of communicative inferences necessitates a revision of the concept of social structures (and institutions) as distributed, and hence, uncertain, structures of expectation. Institutional realities are generated in linguistic interaction through the indirect communication of generic references. The generalizing function of language – in particular, abstraction and memory – coupled with its reflexive function, to turn references into things, are sufficient to generate both social structures and institutions as collective inferences.

Findings – Social relations are fundamentally communicative relations. The communicative relation is triadic, implying an enunciator, an audience, and some referential content. Through linguistic communication, humans are capable of communicating locally with others about others nonlocally. Institutions exist only as expectations concerning the expectations of others. These expectations, however, are not only in the mind, and they are not exclusively psychological entities. Linguistically, these expectations appear as the reported statement within the reporting statement, that is, they are constituted through indirect discourse.

Research limitations/implications – An important implication for current sociological theory is that, from the point of view of a sociology defined as communication about communication from within communication, institutional realities should not be reified as existing naturalistically or objectively above or behind the communications through which they are instantiated.

Originality value – This approach, then, is decidedly anti-“realist.” The goal of such research is to examine the inadequacy of nonreflexive models of social order. Accounts of how sets of social relationships emerge will remain inadequate if they do not reflect upon the cognitive and communicative processes which make possible the consideration of such structures.

The purpose of this paper is to provide a meaningful framework for the classification of the integrity trait in the moral context (ethics), offering an understandable conceptualization of a notion that although identified as central in the literature has is not been defined in a clear and conventional way.

Grounding ideas on the person‐situation historical debate, and drawing on the insights of Luhmann's General System Theory, this paper develops a multileveled framework that categorizes the view of integrity.

The integrity framework presents three categories (levels) of integrity: personal integrity, moral integrity and organizational integrity (OI). This classification serves as a bridging mechanism when trying to link different academic areas (e.g. psychology and ethics) since it provides some agreement on the different meanings and perspectives of the concept of integrity present in the literature.

Practical application of the framework is foreseen within the organizational context, where managers could use it for articulating some of the more intangible aspects that compose their organizational cultures, and which in turn, impact their employees' behavior. In addition, the framework is useful to detect possible/future conflicts of interests that may arise due to different personal (employees) and organizational (company) views of integrity.

This paper alerts scholars and practitioners to the need of a sound classification of the concept of integrity, plus an agreement on its meaning, scope and uses. Consequently, it develops a multileveled framework to show an understandable conceptualization of the trait, paving the road for multidisciplinary research on the topic.

Cross tables are omnipresent in management, academia and popular culture. The Matrix has us, despite all criticism, opposition and desire for a way out. This paper draws on the works of three agents of the matrix. The paper shows that Niklas Luhmann criticised Talcott Parsons’ traditional matrix model of society and proceeded to update systems theory, the latest version of which is coded in the formal language of George Spencer Brown. As Luhmann failed to install his updates to all components of his theory platform, however, regular reoccurrences of Parsonian crosstabs are observed, particularly in the Luhmannian differentiation theory, which results in compatibility issues and produces error messages requesting updates. This paper aims to code the missing update translating the basic matrix structure from Parsonian into Spencer Brownian formal language.

This paper draws on work by Boris Hennig and Louis Kauffman and a yet unpublished manuscript by George Spencer Brown, to demonstrate that the latter introduced his cross as a mark to indicate NOR gates in circuit diagrams. The paper also shows that this NOR gate marker has been taken out of and may be observed to contain the tetralemma, an ancient matrix structure already present in traditional Indian logic. It then proceeds to translate the basic structure of traditional contingency tables into a Spencer Brownian NOR equation and to demonstrate the difference this translation makes in the modelling of social systems.

The translation of cross tables from Parsonian into Spencer Brownian formal language results in the design of a both matrix-shaped and compatible test routine that works as a virtual window for the observation of the actually unobservable medium in which a form is drawn, and can be used for consistency checks of expressions coded in Spencer Brownian formal language.

This paper quotes from and discusses a so far unpublished manuscript finalised by Spencer Brown in April 1961. The basic matrix structure is translated from Parsonian into Spencer Brownian formal language. A Spencer Brownian NOR matrix is coded that may be used to detect errors in expressions coded in Spencer Brownian formal language.

We argue that aspects of the Luhmannian strand of systems theory could be mobilized in a crypto-normative way for an immanent critique of certain trends in contemporary social development, especially the growing economic determination of different spheres of life and the formation of sectorial industries – such as healthcare, education, crime control, etc. – with the consequent erosion of the autonomy of these spheres and the progressive exhaustion of social conditions for the exercise of freedom and the experience of difference.

A decisive step in this approach to systems theory lies in the indication of certain “elective affinities” between Luhmann and Adorno, reinforcing the plausibility of an internal connection between these different theoretical conceptions – not their mere instrumental appropriation and external juxtaposition. From this point of view, we argue that aspects of Luhmann's conceptual construction – notably the way the system-environment relationship is thought – hold a strong family resemblance with the Adornian mode of conceiving the subject–object relationship in the speculative key of negative dialectics.

Conceived as a critical model that modulates society's real abstractions toward difference and systemic autonomy, and especially as a critical model that underlines possibilities of reciprocal mediation between system and environment, systems theory seems to emphatically put itself in tension with what, at least in part, could be seen as its other: neoliberal governmentality, the generalization of the commodity form and the instrumentalization of the individual by unilateral systemic imperatives in global capitalism.

The contingency theory holds that organizations in fit have higher performance levels than those in misfit. However, the results obtained in previous research works are far from homogeneous. The purpose of this study is to compare various fit perspectives seeking to check whether or not the divergence in results might derive from the use of different types of fit. The findings in this paper largely fail to confirm the fit‐performance links described in the traditional contingency theory. Some arguments are proposed in an attempt to explain this fact.

Systems theory is frequently discussed. The aim of the contribution is to elaborate what is to be advised with the idea of closed systems regarding change management.

This paper follows Niklas Luhmann and his so-called “autopoietic turn.” It provides a profound theoretic basis, from which the needs and requirements of the post-heroic management emerge. The implications of this specific approach to change management are demonstrated by means of the contemporary example of scrum. The applied method is literature review.

This contribution seeks to understand the relevance of closed systems within change management. Especially, the meaning of indirect strategies of control as a requirement for change management will be shown. That means Luhmann emphasizes the pessimism of traditional change management. The findings emphasize the meaning of self-organizing systems predicating by means of observation, which configurates corporate agility.

Systems theory often suffers from lack of empirical evidence, as systems are multi-complex. As an alternative, in this study, a literature-based discussion of the contemporary agile project management technique “scrum” is used.

The meaning of power in management shifts from formal to informal or soft power, e.g. the ability to promote self-binding processes. Thus, closed systems emphasize the need to look for alternatives for change management.

Characterizing Luhmann as a hidden champion of contemporary management as modern management tools like hackathons or crowdsourcing also benefit from closed systems.

To be innovative is increasingly considered an imperative in modern society. The motto seems to be “the more, the better,” which is echoed in writings about phenomena such as “disruptive technologies” (Christensen, 1997), “disruptive innovations” (Christensen & Raynor, 2003), or radical innovation (Stringer, 2000; Leifer et al., 2000). Such phenomena are typically held up against “anti-innovative” phenomena, for example, “disruptive” is contrasted with “continuous,” and “radical” is contrasted with “incremental.” Distinctions drawn between being more or less innovative derive in part from studies that are based on stable causal factors that explain why some organizations happen to be more innovative than others.