The main purpose of this work was to design, develop, and construct a simple desktop AC susceptometer to monitor in situ and in real time the coprecipitation synthesis of magnetic nanoparticles. The design incorporates one pair of identical pick-up sensing coils and one pair of Helmholtz coils. The picked up signal is detected by a lock-in SR850 amplifier that measures the in- and out-of-phase signals. The apparatus also includes a stirrer with 45°-angle blades to promote the fast homogenization of the reaction mixture. Our susceptometer has been successfully used to monitor the coprecipitation reaction for the synthesis of iron oxide nanoparticles.
Purpose Rather recently, corporate volunteering (CV) has become a relevant topic of academic research. Nonetheless, there is still uncertainty about several aspects of the relationship between volunteerism and the corporate realm and research on the relationship between CV and employer attractiveness is scarce. This study aims to attempt to fill this gap by studying the influence that the perceived importance attributed by prospective applicants to the opportunity of engaging in CV programs may have on employer attractiveness while also pondering the existence of an indirect relationship between CV and employer attractiveness mediated by the individual cognition of corporate morality (CM). Design/methodology/approach To fulfill the objectives of this research, and test its hypothesized model, the authors opted to use a quantitative methodology via survey by questionnaire of Portuguese students who are close to entering the job-seeking process or are currently involved in it, either passively and actively. Data on 238 Portuguese students was collected mainly through social media channels such as LinkedIn and Facebook and was analyzed with the IBM SPSS Statistics 25 software and the IBM SPSS AMOS extension, using a structural equation model to test the hypotheses and obtain insight into the relationships between the variables. Findings A theoretical model was elaborated based on the literature reviewed and was used to validate the existence of a positive direct relationship between CV and employer attractiveness, CV and CM and between CM and employer attractiveness. Finally, it was observed that CV could prompt an indirect effect on the socioethical perception of employer attractiveness, mainly due to the mediating mechanism of the individual cognition of CM. Research limitations/implications This study has some limitations that should be acknowledged and considered in future studies, namely, the diversity of the sample, as it was essentially formed by students enrolled in the University of Porto and studying mainly in the areas of social sciences, trade and law. It is also worth noting that a global analysis of the employer attractiveness attributes was not considered, focusing instead on the social and ethical spectrum of employer attractiveness. Nonetheless, it is important to keep in mind that different individuals prioritize distinct attractiveness attributes. Practical implications Through the present study, it was understood that CV programs constitute a desired and pertinent tool that should be adopted by firms (employers) to establish a strong position in the job market. These findings are particularly useful for the area of human resources management, which is in charge of finding the most adequate applicants in the job market. Furthermore, for the variable of CM, the authors noticed that there is a theoretical lack of measurement instruments. Consequently, the measure advanced in this study represents an important theoretical and methodologic contribution to the literature. Social implications CV is a concept that is yet maturing within the Portuguese business environment. As such, this study delivers useful insights regarding Portuguese applicants’ growing interest around CV, their concerns about the social, ethical and humanitarian attributes of firms and their beliefs regarding the morality of firms’ social policies and actions. Hence, it allowed us to comprehend that by developing a structured CV program, an employer may be able to enhance other essential concepts for Portuguese prospective applicants, respectively, employer attractiveness and CM. Originality/value This study corroborates the premise that corporate community involvement activities, namely, CV, hold a positive effect in terms of perceived employer attractiveness. Moreover, it is consistent with the idea that CV programs foment a feeling of intimacy between individuals and firms, consequently creating a perception of morality as part of the firms’ intrinsic traits. Finally, it corroborates and extends for the case of prospective applicants the conclusion that individuals may be relatively more concerned with the motives behind firms’ corporate social responsibility practices than with the content of such practices.
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ResumoCódigos JEL G11; G15; G17; G20; G23. Júlio LobãoUniversidade do Porto Miguel OliveiraUniversidade do Porto AbstractIn this article we analyze the investors' ability to select mutual funds, a phenomenon that is known as the smart money effect. The sample used concerns funds domiciled in Portugal for the 2003-2011 period. The empirical evidence suggests that investors had good skills when selecting mutual funds. When the market is in an upward (downward) phase, investors have the ability to select the funds in which to invest (disinvest) but they do not show the ability to choose the best funds to sell (buy). The intensity of the smart money effect seems also to depend on fund category and on the size of the funds.Keywords smart money effect; mutual funds; fi nancial markets effi ciency; Portugal.JEL Codes G11; G15; G17; G20; G23. O efeito de smart money nos fundos de investimento: o caso portuguêsThe smart money effect in mutual funds: the Portuguese case
The European Health Data Space (EHDS) proposal aims to establish a set of rules and governance frameworks to promote the use of electronic health data for both primary and secondary purposes. This study aims at analysing the implementation status of the EHDS proposal in Portugal, particularly the points concerning the primary use of health data. The proposal was scanned for the points that gave member states a direct responsibility to implement actions, and a literature review and interviews were conducted to assess the implementation status of these policies in Portugal This study found that Portugal is well advanced in the implementation of policies concerning the rights of natural persons in relation to the primary use of their personal health data, but also identified challenges, which include the lack of a common interoperability framework for the exchange of electronic health data.
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