Autonomic responsivity of subjects with body boundary differences during white noise stimulation

A white noise stimulus (85 dB) was used to investigate differences in heart rate (HR) and skin conductance (SC) responsivity of 32 male subjects. The subjects were divided into high and low body boundary (HB and LB) groups, according to Fisher's (1970) revised scoring system of Holtzman Inkblot responses. The hypothesis predicting a significantly larger HR response, that is resistant to habituation, for the LB group, was confirmed. The prediction that the HB group would reveal a larger SC amplitude response accompanied by a shorter recovery time, was supported for the latter. The results confirmed the hypothesis, based on behavioral observations, that the HB individual experiences stress less intensely than the LB person. It also points to individual differences as an important variable in evaluating noise as a stressor.     

Alcohol Use in Three Different Inner Cities in South Africa: AUDIT-C and CAGE

The aim of the present study was to describe the frequency of risky drinking among a general urban population survey (n=1379) in South Africa with the help of (Alcohol Use Disorders Identification Test) AUDIT-C scores, CAGE (Cut down, Annoyed, Guilty, Eye-opener) scores and compare the scores with calculated risky drinking in terms of weekly alcohol consumption or heavy episodic drinking. Results indicate 44.4% for men and 25.4% for women as hazardous or harmful drinkers and using the CAGE 44.7% (55% among men and 35.5% among women). AUDIT-C and CAGE cases were more likely to be women than men and were also more likely among Coloureds and Whites than Black Africans and Indians or Asians. This study showed a greater sensitivity of AUDIT to CAGE.     

Living in a Digital Culture

Today our lives are filled with technology through which we communicate, work, play, and even engage with for making meaning. This implies the pervasive presence of digital media as an integral part of our everyday life. Although studies on media are mostly done by sociology and communication students, living in a digital age has significant implications for theological reflections. Despite this being the case, there is a gap in terms of a religious response to technology. In response to this, the aim of this article is to stimulate theological reflections with regard to living in a digital culture. This is achieved by raising theological questions in the hope that theology could take a proactive role in these discussions. The implications of living in a digital culture are quite vast; therefore, the focus will be limited to how a community is formed and sustained, and the possible implications for the church as community.     

Biomatrix: The web of life

Abstract

The interrelationship between all things on earth has long been accepted. It is known that we are part of a great, complex network of processes, sections of which extend to the small building blocks of our bodies. But how are the parts of this network connected together? Is there perhaps a simple overall pattern? We believe that there exists such a pattern which incorporates all living as well as lifeless matter on earth. We refer to this network as the “biomatrix” and define it as the “living network of all things on earth.”

There are units or elements composing the matrix. We call these doublets, within and around which essentially two types of processes, viz., endodynamic and exodynamic processes, take place. Endodynamic processes are those which are directed in purpose toward the components of the doublet in question. Exodynamic processes, on the other hand, are those which have purposes directed toward the greater doublets of which the doublet in question forms a part. All things, lifeless as well as living and organizational entities, from atoms to societies and the total ecosystem, can be thought of as doublets of the biomatrix.

The matrix is not a simple net, such as the fisherman's, in which all knots are the same and are placed alongside one another. The web of life on earth is complex. The connecting strands are processes, endodynamic or exodynamic, and the knots are the doublets. Although many doublets occur alongside one another, they also occur within one another in a “Chinese‐box hierarchy” fashion, viz., those of greater complexity generally enclosing the simpler ones.

A general scheme pertaining to the biomatrix is discussed and it is shown that for an optimally functioning system there must be a balance between the endodynamic and exodynamic processes relating to all doublets within the system.

It is hoped that our efforts will contribute to the evolution of a generally accepted systems framework for life on earth. It is important that such a framework be applicable to practical problems which confront us in everyday affairs.