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In this research paper the authors argue that it is difficult to design compliance into the insertion tool of an assembly device.They suggest the use of a worktable with compliance and analyse the part mating forces that arise.

This study aims to highlight the critical role case fatality rates (CFR) have played in the emergence and the management of particularly the early phases of the current coronavirus crisis.

The study presents a contrastive map of CFR for the coronavirus (SARS-CoV-2) and influenza (H1N1 and H2N2).

The mapped data shows that current CFR of SARS-CoV-2 are considerably lower than, or similar to those, of hospitalised patients in the UK, Spain, Germany or international samples. The authors therefore infer a possible risk that the virulence of the coronavirus is considerably overestimated because of sampling biases, and that increased testing might reduce the general CFR of SARS-CoV-2 to rates similar to, or lower than, of the common seasonal influenza.

This study concludes that governments, health corporations and health researchers must prepare for scenarios in which the affected populations cease to believe in the statistical foundations of the current coronavirus crisis and interventions.

A numerical formulation for solving homogeneous anisotropic heat conduction problems based on the use of an isotropic fundamental solution is presented in detail. The analysis is carried out assuming a generic position of the coordinate axes, which may not coincide with the principal directions of orthotropy of the material. The two primary integral equations of the method are derived from the governing differential equation of the problem. Then, the numerical procedure is developed by rewriting the internal degrees of freedom that arise from the domain discretization in terms of the boundary nodes and solving the resulting system of linear equations for the boundary unknowns only. Special attention is given to the differentiation of singular integrals which yields additional terms as well as to the evaluation of the resulting Cauchy principal value integral. The main feature of the proposed formulation is its generality, which makes possible its direct extension to solve the problem of three‐dimensional heat conduction in anisotropic media and, foremost, to three‐dimensional orthotropic and anisotropic elasticity or elastoplasticity.

This study intends to explore the relationship between digital finance and the vertical specialization of firms. The following questions are discussed: (1) As a representative new financial development model, what is the role of digital finance in the vertical specialization of firms? (2) If digital finance improves the level of vertical specialization of firms, what is the mechanism behind such improvement? (3) How does digital finance impact the vertical specialization of firms in different regions, industries, and firms?

A two-way fixed-effect model of panel data is proposed to verify the relationship between digital finance and the vertical specialization of firms. This model is constructed by matching the city-level data of digital finance with the data of China's A-share listed companies from 2011 to 2018. Meanwhile, the instrumental variable (IV) method and difference-in-difference (DID) method are adopted to deal with the endogeneity problem of the model.

The authors' study finds that digital finance has significantly improved the level of vertical specialization of firms. The result is robust under the endogeneity consideration and a series of robustness tests. After the dimensionality of the index is reduced, the depth of digital finance usage is more conducive to the improvement of the vertical specialization of firms compared with the width of digital finance coverage and the level of financial digitization. Digital finance mainly improves the level of vertical specialization of firms by reducing transaction costs and increasing the market thickness of the intermediate products. Moreover, digital finance has certain heterogeneity in promoting the vertical specialization of firms, an effect that is more significant in the eastern region, manufacturing industry and state-owned enterprises (SOEs).

The first limitation is the mechanism test. This research only analyzes the mechanism from transaction cost and the market thickness of the intermediate products. With the rapid development of information technology, digital finance will be further integrated into people's production and life. There will then be more mechanisms that should be explored between digital finance and the vertical specialization of firms. Another limitation is the data sample of this paper. The conclusions of this research are based only on the data of listed companies. However, in the authors' opinion, the specialization level of small and medium-sized enterprise (SMEs) should be higher. Therefore, the conclusions of this work are underestimated, which can be considered as the lower limit of digital finance for enterprise specialization.

As a favorable financing channel to supplement traditional financial service functions, digital finance plays a critical role in the operating efficiency of enterprises and the effective allocation of macro resources. The authors' research shows that digital finance has significantly improved the vertical specialization of firms. This conclusion provides guides to improve the production efficiency of enterprises and the quality of economic development.

This paper has three main contributions. (1) The relationship between financial development and the vertical specialization of firms is innovatively discussed from the perspective of digital finance, which implies that digital finance can effectively promote the level of vertical specialization of firms. (2) This paper provides new perspectives and ideas to reveal the impact mechanism of digital finance on the real economy by systematically analyzing the mechanism of digital finance on the vertical specialization of firms from the perspectives of transaction costs and financing constraints. (3) The regional differences in the development of digital finance, industry differences in the vertical specialization of firms and differences in the nature of enterprise property rights are all under consideration, which improves the effectiveness and pertinence of digital finance in promoting the vertical specialization of firms.

Business politics and social and economic policies in the past decades brought us to the inevitability of change. Foreign direct investment (FDI) plays a vital role in this change as it is a tool for international business management in a global world. The relationship between FDI and sustainability in sub-Saharan countries with lower incomes has not yet been sufficiently studied, so this study aims to bring some more conclusions to the discussion. Thus, the main objective is to understand if FDI effectively influences the so-called triple bottom line (TBL) pillars of sustainability.

With data from the World Bank regarding 20 sub-Saharan countries gathered between 2010 and 2018, this study analysed 34 indicators composing 11 United Nations Sustainable Development Goals (SDGs). Afterwards, the authors grouped them by the TBL pillars and evaluated the influence of FDI inflows on their scores using panel data models.

The results show a positive and significant correlation between the TBL pillars, with the highest correlation being between the environmental and economic pillars. On the other hand, FDI has no significant influence on the TBL pillars.

This study could improve foreign investment legislation/regulation in sub-Saharan African countries, potentially impacting the sustainability these investments should generate.

This study contributes to understanding how FDI implies sustainability. The results suggest that governments, non-governmental organisations and other competent entities need to adjust their actions in these countries so that foreign companies sustainably exploit the resources.

This study brings to the current arena an emerging theme: FDI and sustainability in African countries, particularly in sub-Saharan countries. This subject in developing countries is still under-researched.

The purpose of this paper is to explore the relationship between attachment style, sub-clinical symptoms of psychosis and aggression in a general population sample.

Using both convenience and snowball sampling, participants in the community (n=213) completed an online questionnaire including previously validated measures of adult attachment, aggression and psychotic experiences.

Results suggested that there were statistically significant correlations between all study variables. Multiple linear regression demonstrated that total psychotic-like experiences and attachment scores significantly predicted variance in total aggression. Moderation approaches revealed that the relationship between psychotic-like events and aggression was stronger in individuals with more insecure attachment styles.

This generalisability of the results is compromised by the sampling methodology and the use of self-report tools. However, the significant results would support larger scale replications investigating similar variables.

This study suggests there is a relationship between psychotic-like experiences (PLEs) and facets of aggression in the general population. These results suggest that attachment is a contributing factor to aggression associated with PLEs, and highlight the need for similar investigations within clinical samples. The results imply that attachment may be a useful construct for explanatory models of the relationship between adverse childhood experiences, psychotic experiences and aggression.

Machining of curved channels using electrical discharge machining (EDM) is a novel approach. In this study, an experimental setup was designed, developed and mounted on die-sinking EDM to manufacture curve channels in AISI P20 mold steel.

The effect of specific machining parameters such as peak current, pulse on time, duty factor and lift over material removal rate (MRR) and tool wear rate (TWR) were studied. Multi-objective optimization was performed using Taguchi technique and Jaya algorithm.

The experimental results revealed current and pulse on time to have the predominant effect over material removal and tool wear diagnostic parameters with contributions of 39.67, 32.04% and 43.05, 36.52%, respectively. The improvements in material removal and tool wear as per the various optimization techniques were 35.48 and 10.91%, respectively.

Thus, Taguchi method was used for effective optimization of the machining parameters. Further, nature-based Jaya algorithm was implemented for obtaining the optimum values of TWR and MRR.

The purpose of this paper is to investigate the macroeconomic determinants of foreign direct investment (FDI) for the top five South Asian economies, namely, Bangladesh, India, Pakistan, Sri Lanka, and Nepal, and to examine whether these factors are the same for each.

This study employs fully modified ordinary least squares and two-stage least squares estimation methods.

This study shows that South Asian economies have a number of FDI determinants in common. For example, market size and human capital are the two most common factors attracting FDI in each country (except for Nepal, which revealed a negative correlation between FDI and market size). Other factors, such as infrastructure, domestic investment, lending rates, exchange rates, inflation, financial stability/crisis, and stock turnover entered into regression with both positive and negative signs, thereby indicating that the underlying theories on FDI do not provide a clear prediction of the direction of the effect of a particular variable on FDI.

This paper studied the effects of demand-side factors on FDI. A comparative study of the supply-side factors may add further knowledge.

This paper provides evidence to show that the determinants of FDI are indeed country-specific. Thus, to design a suitable FDI policy, it would not be wise to solely rely on other economies’ FDI experiences.

This paper provides updated evidence on factors that are essential to promoting or deterring FDI in South Asian economies.

This paper provides empirical evidence on the dynamic relationship between inward foreign direct investment (FDI), economic growth and domestic investment in Korea for the period 1985‐1999. By employing a vector autoregression model and the innovations accounting techniques, we explore dynamic interactions between inward FDI, domestic investment and output. We find that FDI has some positive effects on economic growth, but its effects seem to be insignificant. On the other hand, economic growth is found to have statistically significant and highly persistent effects on the future level of FDI. Although FDI is exogenous contemporaneously, we find that FDI shows strong dynamic endogeneity to domestic macroeconomic conditions, which has not been uncovered in previous works. Our finding does not support the view that FDI crowds out domestic investment in Korea.

Foreign direct investment (FDI) has played a major role in the deep process of transformation experienced by the Spanish economy since the first 1960s, which even intensified, following the integration with the now European Union in 1986. This paper aims to analyse the long-run effects of FDI in Spain by estimating a production function including the foreign capital stock over the period 1964–2013.

The author estimates a production function including the foreign capital stock over the period 1964–2013, from which the contributions of the different explanatory variables on the accumulated growth of gross domestic product (GDP) are computed. Next, the author tested for the possible presence of structural change in the previously estimated equation, by means of the tests of Bai and Perron, re-estimating the production function for the different subperiods delimited by the structural breaks found. Finally, the analysis is completed by performing Granger-causality tests on the variables GDP and foreign capital stock in a multivariate setting.

The author finds a significant contribution of foreign capital on the accumulated growth of GDP over the period of analysis, which seems however to have been greater during the first years of the period analysed. Foreign capital can play a positive role in the economic growth of an economy, provided that FDI inflows are stable and permanent enough, but this effect on growth seems to be more important in the first stages of a growth process.

The author presents a comprehensive analysis of the relationship between FDI and growth for a particular country, which seems to be a more promising empirical approach rather than the approach based on panel regressions, where sometimes some dissimilar experiences are added together. The Spanish economy can provide a relevant case study, given the substantial process of growth it enjoyed starting from the early 1960s, characterized by the arrival of vast inflows of foreign capital.