Search results

The purpose of this paper was to offer more reliable dry electrode materials for long-term measuring and determine how repeated machine washing affects the measured impedance and surface resistance of the sample electrodes. The aim was to manufacture electrodes that could be used for the measurement of ECG. Skin friendly, metal sheet type, electrodes could be a solution.

In addition to two conventional electrodes already used in heart rate belts, the authors prepared and tested three different sheet metal electrodes. Three 20-mm-diameter electrodes were manufactured from the following materials: silvered knit, conductive polymer, stainless steel, silver and platinum. Electrode impedance was measured at seven frequencies from 1 Hz to 1 MHz, by placing two electrodes face-to-face. Measurements were taken on unused electrodes and after multiple machine washes at 40°C.

Analysis of the measurements indicates that with every material tested, the impedances are elevated after repeated washes. All metallic materials have impedances in the range of 0.01 to 4.5 Ω. Metal sheet electrodes can be integrated comfortably into the textile, and they endure textile maintenance without loss of electrical properties.

Metal sheet electrodes function well in long-term vital signs monitoring, provide a reliable signal and are resistant to maintenance. For the reasons described in this research, they can be used as a long-term wearable sensor.

Novel electrode material for long-term measuring research is important in many disciplines such as health care and apparel manufacturing. These findings suggest that pure metal electrodes are better than conductive textiles in long-term measuring.

Due to the increasing complexity in supply chains and networks, several key practices have been highlighted as beneficial for supply chain performance. However, it is less known whether adopting such practices affects the innovation performance of the focal firm. This study hypothesises that supplier collaboration practices in four specific areas (green and ethical supply management, early supplier involvement, systemic purchasing and inter-firm learning) may lead to higher focal firm innovation performance, as they require the firm to adopt new business models, processes and product features.

The hypotheses drawn from previous research are tested with a quantitative survey study of 165 Finnish firms and analysed by means of regression analysis.

The results show that two examined practices are positively related to focal firm innovation performance: systemic purchasing and green and ethical supply management. Interestingly, early supplier involvement and inter-firm learning did not influence innovation performance.

Little is known about whether adopting certain practices in supply management affects the innovation performance of the firm. In fact, among the performance indicators of supply management, innovation is rarely studied, and more studies using innovation as a performance indicator are called for. Thus, this study focuses on supplier collaboration practices and their relation to the focal firm’s innovation performance.

The purpose of this paper is to present the stages for manufacturing a low‐cost miniaturized prototype device, which observes the restrictions of implantable medical devices. The device measures the electrocardiography. The power for the implant is received passively as the same magnetic field as data is transferred to the reader device.

In this manufacturing technique, only easily attachable commercial available components are used, etching is used to simply produce a low‐cost double‐sided flexible printed circuit board which is converted to 3D by folding.

The circuit board was folded into the final shape after component attachment and the final result was a compact 3D package within the specifications determined by the electronics designer. The miniaturized prototype device was successfully tested both in vitro and in vivo.

The manufacturing technique of the sensing device can be readily adapted to other devices that need to be miniaturized. The coatings used for electrical insulation and chemical protection and the type of adhesives used for folded packages are easily utilized in similar miniaturization prototypes. By using bare chips, the final product would have been even smaller but for prototyping it is cheaper and faster to use easily acquired and attached components. In the case of mass production, the whole new design, where bare chips with flip chip attachments, integrated passives and/or stacked 3D packages with design considerations such as electrical, thermal and mechanical engineering is justified.

During the last decade, a firm's ability to innovate has gained substantial attention in the literature devoted to innovation and strategic management. This study aims at discussing on what is the relationship of a firm's commitment to learn and its open-mindedness with its activity in introducing organizational innovations. The data collection was carried out in Russia. In order to make the research more specific, the organizational innovation is broken down into two subtypes, namely innovation in management practices and innovation in workplace organization.

The study is grounded on the data obtained by the surveying of 123 Russian top managers working in manufacturing firms. The structural equation modeling was approached in order to investigate the impact of a firm's commitment to learn and open-mindedness on its organizational innovation.

The results indicate that the commitment to learn and the open-mindedness have considerable impact on organizational innovation activity in a firm. The findings also provide evidence that both the investigated subtypes of organizational innovation are positively influenced by commitment to learn and open-mindedness, though the degree of that influence differs.

The literature traditionally focuses mostly on the technological type of innovation leaving the organizational innovation covered by scarce research. In this respect the study contributes to the theory of organizational innovation by elaborating its relations with organizational learning dimensions. Apart from the investigation on the research question at a general level, the study explores the specific context related to the manifestation of phenomenon in a transition economy of Russia.

The patient complaint is one of the main procedures of exercising patient’s rights in the Finnish health care system. Such complaints typically concern the quality of care and/or patient safety. The purpose of this paper is to examine the types of patient complaints received by a specialized medical care organization and the kinds of responses given by the organization’s personnel. The organization’s strategy and good governance principles provide the framework for understanding the organization’s action.

This study’s data comprise patient complaints and the responses from personnel of a specialized medical care organization from the start of 2012 to the end of January 2014. The data were analyzed through qualitative data analysis.

The results show many unwanted grievances, but also reveal the procedures employed to improve health care processes. The results are related to patients’ care experiences, provision of information, personnel’s professional skills and the approach to patient complaints handling. The integrative result of the analysis was to find consensus between the patients’ expectations and personnel’s evaluation of patients’ needs.

Few prior studies have examined patient complaints related to both strategy and good governance. Patient complaints were found to have several confluences with an organization’s strategic goals, objectives and good governance principles. The study recommends further research on personnel procedures for patient complaints handling, with a view to influencing strategic planning and implementation of strategies of organizations.