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The purpose of this paper is the development and study of capacitive coupling electrodes with the ability to monitor the quality of the skin–electrode contact in the process of electrocardiogram (ECG) diagnostics. The study’s scope embraces experimental identification of distortions contributed into the recorded ECG signal at various degrees of disturbance of the skin–electrode contact.

A capacitive coupling electrode is designed and manufactured. A large number of experiments was carried out to record ECG signals with different quality of the skin–electrode contact. Using spectral analysis, the characteristic distortions of the ECG signals in the event of contact disturbance are revealed.

It was found that the violation of the skin–electrode contact leads to significant deterioration in the recorded signal. In this case, the most severe distortions appear with various violations of the skin–electrode contact of two sensors in one lead. It has been experimentally shown that the developed sensor allows monitoring the quality of the contact, and therefore, improvement of the quality of signal registration, enabled by the use of bespoke processing algorithms.

These sensors will be used in personalized medicine devices and tele-ECG devices.

In this work, authors studied the effect of the skin–electrode contact of a capacitive electrode with the body on the quality of the recorded ECG signal. Based on the studies, the necessity of monitoring contact was shown to improve the quality of diagnostics provided by personalized medicine devices; the capacitive sensor with contact feedback was developed.

A review on additive manufacturing (AM) of shape memory polymer composites (SMPCs) is put forward to highlight the progress made up to date, conduct a critical review and show the limitations and possible improvements in the different research areas within the different AM techniques. The purpose of this study is to identify academic and industrial opportunities.

This paper introduces the reader to three-dimensional (3 D) and four-dimensional printing of shape memory polymers (SMPs). Specifically, this review centres on manufacturing technologies based on material extrusion, photopolymerization, powder-based and lamination manufacturing processes. AM of SMPC was classified according to the nature of the filler material: particle dispersed, i.e. carbon, metallic and ceramic and long fibre reinforced materials, i.e. carbon fibres. This paper makes a distinction for multi-material printing with SMPs, as multi-functionality and exciting applications can be proposed through this method. Manufacturing strategies and technologies for SMPC are addressed in this review and opportunities in the research are highlighted.

This paper denotes the existing limitations in the current AM technologies and proposes several directions that will contribute to better use and improvements in the production of additive manufactured SMPC. With advances in AM technologies, gradient changes in material properties can open diverse applications of SMPC. Because of multi-material printing, co-manufacturing sensors to 3D printed smart structures can bring this technology a step closer to obtain full control of the shape memory effect and its characteristics. This paper discusses the novel developments in device and functional part design using SMPC, which should be aided with simple first stage design models followed by complex simulations for iterative and optimized design. A change in paradigm for designing complex structures is still to be made from engineers to exploit the full potential of additive manufactured SMPC structures.

Advances in AM have opened the gateway to the potential design and fabrication of functional parts with SMPs and their composites. There have been many publications and reviews conducted in this area; yet, many mainly focus on SMPs and reserve a small section to SMPC. This paper presents a comprehensive review directed solely on the AM of SMPC while highlighting the research opportunities.

Going back into previously exited markets is a significant management risk. But, how are re-entry risks managed? By adding strategic reference point (SRP) rationales to the risk management literature, this chapter examines re-entry after initial entry and divestment on a sample of 654 multinational enterprise (MNE) re-entrants. The authors move away from narrow risk management lenses according to which risks happen in isolation and theorize that MNEs simultaneously manage international risk by exploiting the trade-offs among external and internal sources of risk. The authors explain that, for re-entrants, exit may become the SRP for evaluating future strategic choices. The results suggest that re-entrants tend to manage re-entry risk by choosing partner-based modes that enable them to maintain strategic flexibility at re-entry. Surprisingly perhaps, market-specific experience acquired during the initial market foray does not provide strategic flexibility, in that highly experienced firms still experience risk trade-offs.

This paper studies how Chinese consumers respond to foreign goods in the post‐WTO era. Specifically, it examines brand sensitivity as a mediator and product cues as moderator of purchase intention. Additionally, it examines consumer preferences for different products and consumption plans for the subsequent five years. The survey sample is drawn from a population of foreign product users from 34 cities in 18 provinces in China. Results provide evidence that brand sensitivity mediates the relationship between consumer ethnocentrism and purchase intention; product cues moderate the effect of ethnocentrism on purchase intention. As the first study to link consumer ethnocentrism directly to brand sensitivity and purchase intention, this research provides some managerial implications. Global marketers can offset the negative effect of ethnocentrism by emphasizing brand image of its products, taking advantage of specific product cues, or by providing more comprehensive after‐sale service to reduce the perceived risk of purchasing imports. Also, price is still a hurdle that prevents Chinese consumers from mass consumption of foreign products. Global firms should not overestimate the purchasing power of Chinese consumers. This study represents a “snapshot” of Chinese consumers’ decision making at a time when their economic system is undergoing rapid change.

The “gender problem” emerging today in CA as it relates to and involves education actually has long history, and was a target of serious social and political reform during Soviet times. We are interested in describing the problematic emergence; subsequent decline; and current difficulties, policies and practices connected to gender equality CA – with a particular focus on education and higher education. There are important historical writings on this topic, as well as contemporary statistical description of the issues. We undertake to illustrate briefly and describe work in both areas to begin this writing. Yet, this chapter is as much interested in the experiences and understandings of gender, education and lived culture as it is in what the history books say and how the statistics read. Our historical and conceptual discussions and generalizations are thus used primarily as scene setters for our later ethnographic accounts.

The present study consists of managers and professionals in 26 countries including seven from Central and Eastern Europe. The purpose of this paper is to investigate whether culture dimensions predict country differences in the relationship between gender and organizational commitment. The study integrated theories of social learning, role adjustment and exchange that link commitment to organizational roles to explain such differences in gender effects. Findings indicate that an alternative modernities perspective on theories of gender and commitment is better warranted than is a traditional modernities perspective.

This study examined the relationship between gender and organizational commitment using primary data collected in 26 counties. The cross-level moderating effects of individualism, masculinity, uncertainty avoidance, power distance and restraint vs indulgence was examined using hierarchical linear modeling.

Organizational commitment is found to be higher among men than women in four countries (Australia, China, Hungary, Jamaica) and higher among women than men in two countries (Bulgaria and Romania). Results shows that large power distance, uncertainty avoidance, femininity (social goal emphasis) and restraint (vs indulgence) predict an association between being female and commitment. These all suggest limitations to the traditional modernity-based understanding of gender and the workplace.

This study is unique based on the three theories it integrates and because it tests the proposed hypothesis using a multi-level nested research design. Moreover, the results suggest a tension between an alternative modernities perspective on top-down governmental effects on commitment through exchange and bottom-up personal effects on commitment through social learning with role adjustment in an intermediate position.

Based on DNase I and reduced graphene oxide (rGO)-magnetic silicon microspheres (MNPS), a highly sensitive and selective fluorescent probe for the detection of PD-L1 was developed.

Here °C we present a feasibility of biosensor to detection of PD-L1 in lung tumors plasma. In the absence of PD-L1°C the PD-L1 aptamer is absorbed on the surface of graphene oxide modified magnetic nanoparticles °8rGO-MNPS°9 and leading to effective fluorescence quenching. Upon adding PD-L1°C the aptamer sequences could be specifically recognized by PD-L1 and the aptamer/PD-L1 complex is formed°C resulting in the recovery of quenched fluorescence.

This sensor can detect PD-L1 with a linear range from 100 pg mL⁻¹ to 100 ng mL⁻¹, and a detection limit of 10 pg•m⁻¹ was achieved.

This method provides an easy and sensitive method for the detection of PD-L1 and will be beneficial to the early diagnosis and prognosis of tumors.