A software-computational neural network tool for predicting the electromagnetic state of the polar magnetosphere, taking into account the process that simulates its slow loading by the kinetic energy of the solar wind

The auroral activity indices AU, AL, AE, introduced into geophysics at the beginning of the space era, although they have certain drawbacks, are still widely used to monitor geomagnetic activity at high latitudes. The AU index reflects the intensity of the eastern electric jet, while the AL index is determined by the intensity of the western electric jet. There are many regression relationships linking the indices of magnetic activity with a wide range of phenomena observed in the Earth's magnetosphere and atmosphere. These relationships determine the importance of monitoring and predicting geomagnetic activity for research in various areas of solar-terrestrial physics. The most dramatic phenomena in the magnetosphere and high-latitude ionosphere occur during periods of magnetospheric substorms, a sensitive indicator of which is the time variation and value of the AL index. Currently, AL index forecasting is carried out by various methods using both dynamic systems and artificial intelligence. Forecasting is based on the close relationship between the state of the magnetosphere and the parameters of the solar wind and the interplanetary magnetic field (IMF). This application proposes an algorithm for describing the process of substorm formation using an instrument in the form of an Elman-type ANN by reconstructing the AL index using the dynamics of the new integral parameter we introduced. The use of an integral parameter at the input of the ANN makes it possible to simulate the structure and intellectual properties of the biological nervous system, since in this way an additional realization of the memory of the prehistory of the modeled process is provided.

Coming together after a tragedy: how the S.S. Eastland disaster of 1915 affected welfare capitalism and helped shape the Hawthorne studies

Purpose This paper aims to conduct a historical study using both primary (archival data) and secondary sources to evaluate the social conditions of the community of employees at Hawthorne Works between 1907 and 1933. Design/methodology/approach This paper evaluates the historical and social context of the 1915 Eastland disaster, specifically, the effects of the Eastland disaster on the community and the company to improve understanding of the contextual background and conditions which influenced the Hawthorne studies. This will also serve as a case study of crisis management. Findings The findings of the paper argue that the Eastland disaster likely contributed to the expansion of welfare capitalism practices by Western Electric in the 1920s–1930s and established the social and communal conditions which made the Hawthorne studies (1924–1933) possible. Originality/value Rather than evaluating the Hawthorne studies themselves, this paper focuses on social factors which made the Hawthorne Works plant site and the community serving it an ideal locale to host the famous studies as part of Western Electric’s practice of welfare capitalism and a distraction from the traumatic event which scarred the community and urged the Western Electric company to react. This study also provides an early example of crisis management.

ANALYSIS OF STRUCTURE AND TECHNICAL CONDITION OF WESTERN ELECTRIC NETWORKS OF THE REPUBLIC OF SAKHA (YAKUTIA)

The paper analyzes the technical condition of the network equipment of Western electric networks of PJSC «Yakutskenergo» for the last 10 years. The geographical location of the networks of the electric networks is shown, which determines the scale of the study. Technical indicators in the interval of 10 years are presented, which testify to an increase in the volume of fixed assets of the enterprise. Mathematical models of the wear dynamics of the transmission equipment of the Western electric networks have been obtained. It is proved that the technical condition of the equipment will deteriorate further in the absence of appropriate financing.

The riddle of adaptation: Revisiting the Hawthorne studies

This article explores the Hawthorne studies, an industrial research programme conducted at Western Electric Company from 1924 to 1933. The analysis focuses on the longest-running experiment, in which female workers in their twenties operated a relay assembly in a room specially designed for the experiment and were monitored by a group of engineers and industrial researchers. Based on the authoritarian setting, this research situates the experiment in the wider history of making workers through complex systems of value attributions, such as classifications and technologies of characterisation. However, examination of previous research and accounts of the Hawthorne studies suggests that the relay assembly test was also an ambivalent research setting characterised by negotiations and strategies which converged into the dynamics of knowing and being known. This article thus offers a new critical perspective on the experiment by regarding the operators as active players in an industrial labour process game rather than cooperative, adaptive laboratory subjects.

Phyllis M. Tookey Kerridge and the science of audiometric standardization in Britain

The provision of standardized hearing aids is now considered to be a crucial part of the UK National Health Service. Yet this is only explicable through reference to the career of a woman who has, until now, been entirely forgotten. Dr Phyllis Margaret Tookey Kerridge (1901–1940) was an authoritative figure in a variety of fields: medicine, physiology, otology and the construction of scientific apparatus. The astounding breadth of her professional qualifications allowed her to combine features of these fields and, later in her career, to position herself as a specialist to shape the discipline of audiometry. Rather than framing Kerridge in the classic ‘heroic-woman’ narrative, in this article we draw out the complexities of her career by focusing on her pursuit of standardization of hearing tests. Collaboration afforded her the necessary networks to explore the intricacies of accuracy in the measurement of hearing acuity, but her influence was enhanced by her ownership of Britain's first Western Electric (pure-tone) audiometer, which she placed in a specially designed and unique ‘silence room’. The room became the centre of Kerridge's hearing aid clinic that, for the first time, allowed people to access free and impartial advice on hearing aid prescription. In becoming the guardian expert and advocate of the audiometer, Kerridge achieved an objectively quantified approach to hearing loss that eventually made the latter an object of technocratic intervention.