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Performing accurate numerical simulations of electrical drives, the precise knowledge of the local magnetic material properties is of utmost importance. Due to the various manufacturing steps, e.g. heat treatment or cutting techniques, the magnetic material properties can strongly vary locally, and the assumption of homogenized global material parameters is no longer feasible. This paper aims to present the general methodology and two different solution strategies for determining the local magnetic material properties using reference and simulation data.

The general methodology combines methods based on measurement, numerical simulation and solving an inverse problem. Therefore, a sensor-actuator system is used to characterize electrical steel sheets locally. Based on the measurement data and results from the finite element simulation, the inverse problem is solved with two different solution strategies. The first one is a quasi Newton method (QNM) using Broyden's update formula to approximate the Jacobian and the second is an adjoint method. For comparison of both methods regarding convergence and efficiency, an artificial example with a linear material model is considered.

The QNM and the adjoint method show similar convergence behavior for two different cutting-edge effects. Furthermore, considering a priori information improved the convergence rate. However, no impact on the stability and the remaining error is observed.

The presented methodology enables a fast and simple determination of the local magnetic material properties of electrical steel sheets without the need for a large number of samples or special preparation procedures.

This paper aims to appraise the effectiveness of gender quotas in breaking the glass ceiling for women on boards (WoBs) in companies that are legally obliged to comply with quotas (listed companies and state-owned companies, LP) and in those that are not (unlisted companies and nonstate-owned companies, NLNP). Furthermore, it investigates the glass cliff phenomenon, according to which women are more likely to be appointed to apical positions in underperforming companies.

A balanced panel data of the top 116 Italian companies by total assets, which are present in both 2010 and 2017, is used for estimating ANOVA tests across sectors and fixed-effects panel regression models.

WoBs significantly increased in both the LP and the NLNP companies, and this increase was greater in the financial sector. Furthermore, the relationship between the percentage of WoBs and firm performance is not linear but depends on the financial corporate health. Specifically, the situation in which a woman ascends to a leadership position in challenging circumstances where the risk of failure is high (glass cliff phenomenon) is only present in companies with the lowest performance in the sample, in other words, when negative values of Roe and negative or zero values of Roa occur together.

These findings have relevant policy implications that encourage the adoption of gender quotas even in specific top positions, such as CEO or president, as this could lead to a “double spillover effect” both vertically, that is, in other job positions, and horizontally, toward other companies not targeted by quotas. Practical interventions to support women in glass cliff positions, on the other hand, relate to the extent of supervisor mentoring and support to prevent women from leaving director roles and strengthen their chances for career advancement.

The authors explore the ability of gender quotas to break through the glass ceiling in companies that are not legally obliged to do so, and to the best of the authors’ knowledge, for the first time, the glass cliff phenomenon in the Italian context.

Aging is a complex and multifactorial process. This study aims to is focus on mattering in older people. Mattering is the feeling of being important to others in ways that give individuals the sense that they are valued and other people care about them. However, for many, aging brings about the loss of self-esteem, and they feel useless, deprived and unwanted. The authors have adopted the partial least square structural equation modeling technique and Self-Esteem Scale of Rosenberg for evaluating the level of self-esteem in senior citizens of Pakistan. The results reveal a strong association between the predictor and the criterion variables, supporting the view that the communal integration construct is the strongest determinant in old age. Based on the results, the authors can argue that socioeconomic status, social relationships and daily activities and have a direct association with the elderly people’s self-esteem.

The Self-Esteem Questionnaire by Rosenberg (Rosenberg, 1965) and the Quality of Life Questionnaire by Bowling (Bowling, Banister, Sutton Evans and Windsor (2002) are two tested tools that were used to collect the sample data from various neighborhoods of Peshawar. The sample consisted of respondents who were 60 years of age or older. The current study only included men who were 60 years of age or older because men make up a higher number of retirees in the district (84%) than do women. A total of 312 male volunteers, representing a various cadre of job, were recruited at random. The research population’s data were gathered through convenience sampling. Only volunteers who appeared to be healthy in both body and mind were chosen as participants. When older people were unable to complete questionnaires, researchers helped them read the questions and then helped them write down their answers. Out of the 500 survey forms that were sent, 312 were properly completed and used for the analysis.

The results of this study suggest that the happiness and well-being of retired seniors are not only influenced by their general activities, health and socioeconomic status but also more strongly by their psycho-social integration, such as their close and intimate relationships with friends, family and relatives. The findings, therefore, urge the incorporation of social integration aspects in mental health treatment programs and public health policies to support the psycho-social well-being of the elderly. Social relationship variables might become a common aspect of practice through medical, psychiatric and psychological screening and examination.

Due to the fact that research participants were selected from just one city – Peshawar – the results cannot be generalized. As a result, findings are less likely to apply to older persons who reside in other provinces due to sample selection. Future research will be conducted all around the nation, though, and it could produce more precise and broadly applicable findings. Only male respondents applied to the second limitation. Only male participants were sought due to socioeconomic differences, social and cultural obstacles and the small number of female retirees. Therefore, it limits the spectrum of the study.

An individual’s self-esteem is made up of intrapersonal and interpersonal elements. Regarding policy intervention, the present effort will be a crucial step in helping the elderly understand the value of maintaining social networks and will encourage them to maintain close relationships with family and friends to safeguard their well-being in later life. On the other side, this research will help academics, politicians and thinkers better comprehend aging, perspectives of conduct and psychological and emotional viewpoints. One of the most important aspects of life that affects how old people feel about themselves is the support from social networks. Therefore, through raising awareness and fostering a favorable environment for the welfare and self-worth of senior individuals, politicians and society are expected to care for enriching the lives of the elderly. By highlighting the importance of communal support from a multidimensional aspect of a person, this study offers a wider perspective on self-esteem. With this in mind, the authors advise academics to adopt a fresh perspective on interpersonal mechanisms that ultimately aim to improve self-esteem and social support. Social support is a key factor in fostering or inhibiting self-esteem in the elderly and is a strong predictor of mental health. A society must take action to boost older people’s communal integration to improve their quality of life.

This study makes the case for a broader perspective on self-respect or esteem by suggesting that self-esteem may be seen in a broader context rather than in terms of limited characteristics. The authors offer an integrated model of self-esteem that conceptualizes it as an interpersonal phenomenon influenced by multiple vital aspects using various metrics of old age. Self-esteem was envisioned as the result of a number of factors, including social position, activities and interpersonal interaction “relationships with relatives, family, and friends.” The authors’ conceptual framework’s goal is to comprehend the different ways that senior citizens’ lives affect their sense of self-worth.

The purpose of this paper is to systematically review the history and current state of lesson study (LS) in Germany. In particular, this paper describes the development of LS over time and its stakeholders.

Conducting a systematic literature review, we searched three scientific databases and Google Scholar, examined 806 results and included 50 articles in our final sample, which we analyzed systematically.

The spread of LS in Germany can be divided into three phases, characterized by their own LS projects as well as their own ways of understanding LS. Although interest in LS has increased significantly in recent years, it is only present at a small number of schools and universities in Germany if compared internationally. Furthermore, this paper identifies the so-called learning activity curves as a tool frequently used for observation and reflection that appears to be unknown outside German-speaking countries.

This paper may act as an outline for countries without large-scale LS projects and with limited support from policymakers. The experience from Germany demonstrates the outcomes and challenges that can arise in such a situation and shows how unique LS features and proceedings have emerged.