1,721,189 research outputs found
L’evento di radiazione dei “protoglobigerinidi” al passaggio Aaleniano-Bajociano e la perturbazione ambientale bajociana nell’Appennino umbro-marchigiano: implicazioni stratigrafiche e paleoceanografiche.
No full textChemsex in Italy: experiences of men who have sex with men consuming illicit drugs to enhance and prolong their sexual activity
No full textBackground: Chemsex is a novel phenomenon referring to the consumption of illicit drugs to facilitate, enhance, and prolong the sexual experience in men who have sex with men (MSM). Aim: The present study aims to investigate contexts, patterns of substance use, first chemsex experience, and harm reduction in a group of MSM practicing chemsex in Italy. Methods: Thirty MSM involved in chemsex activities were interviewed between February and July 2019. Outcomes: The interviews were conducted using an ad hoc grid exploring general characteristics of Italian chemsex, patterns of substance use, first chemsex experience, and harm reduction opinions. Results: Chemsex in Italy showed important peculiarities and patterns because of sociocultural background. Chemsex was mainly reported in private venues within couple and group sexual activities. Most participants attended chemsex sessions about 1-2 times per month often concurring with men-only club events. Freebase cocaine emerged among the most relevant substances consumed together with gamma-hydroxybutyrate/gamma-butyrolactone, crystal methamphetamine, and mephedrone. A rare use of injected substances compared with other European Union countries was shown. Given the high prevalence of erectile problems, a large use of phosphodiesterase type 5 inhibitors was reported, and noncoital sexual activities were usually preferred (eg, oral sex, fist fucking). The first chemsex experiences were usually accessed by geolocation-based dating apps and sexual partners and were generally described as positive experiences, with some negative consequences at the end of the session (dysphoric mental states, guilt, craving). Taking part in international gay events seems to favor the first experience of chemsex for some participants. Moreover, some MSM practiced chemsex only abroad or in other cities in Italy so as not to be recognized as chem users in their daily environment. Clinical Translation: Implications for ad hoc harm reduction programs are discussed. Strengths & Limitations: Despite the methodological limitations due to participants’ number and the absence of interviews audio recording, results highlighted some relevant characteristics of chemsex in Italy, such as freebase cocaine use, attitudes regarding slamming, geographical movements, and secrecy. Conclusion: The results revealed a need for greater scientific and public attention on chemsex to act with the most specific and effective prevention and harm reduction tools. Nimbi FM, Rosati F, Esposito RM, et al. Chemsex in Italy: Experiences of Men Who Have Sex With Men Consuming Illicit Drugs to Enhance and Prolong Their Sexual Activity. J Sex Med 2020;XX:XXX–XXX
A feedback-based model for CSR assessment and materiality analysis
Full text linkCurrent CSR literature offers little insight into how to engage customers and other stakeholders about their CSR expectations and perceptions. The aim of this paper is to propose a model for CSR evaluation and planning based on the classification of customer CSR feedback through the comparison of three aspects of CSR commitment (disclosed, perceived and expected). Although the paper is focused on customers, the model can be applied indifferently to any stakeholder group, thus providing a valuable instrument for materiality analysis and stakeholder engagement. In effect, the model allows identifying material CSR issues regarding all stakeholder perceptions and expectation
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Gender differences in customer expectations and perceptions of corporate social responsibility
Full text linkThe literature on business ethics, corporate social responsibility and sustainability includes many studies on gender differences, however the results are often contrasting. In particular, there has not yet been full agreement on the role and significance of gender differences in customer expectations and perceptions of responsible corporate conduct. An extensive review of the research on the subject reveals that the published studies have not dealt with the substantive significance of gender differences, and as a result, the size of such differences is unknown. The current study analyses both the statistical and the substantive significance of gender differences in customer expectations and perceptions of corporate responsibility, also examining the influence of age and education. The analysis is carried out on a remarkably large sample of 908 clients, pertaining to 12 of the largest Italian banks. The overall results show that there is a small substantive difference between women’s and men’s average expectations, with women showing higher average values than men. This result holds generally true with variation of education levels and age groups. Young females show the highest average values of expectations, and the significance of gender differences decreases with age. In contrast, the perception of corporate social responsibility does not show significant gender differences, either at the general level or when the analyses are repeated by education levels and age groups. The paper introduces the use of a standardized measure of effect size for analysing the substantive significance of gender differences in customer expectations and perceptions of corporate social responsibility. This novel approach increases results reliability and, accordingly, the effectiveness of company or policy maker strategies in designing, planning, implementing and assessing sustainability initiatives
Polarized site of sperm entrance in the egg of a freshwater bivalve, Unio elongatulus (Mollusca, Bivalvia)
No full textWe studied the organization of the egg of a freshwater bivalve, Unio elongatulus. This egg is markedly polarized. At the vegetal pole there is a crater which constitutes the point of attachment of the growing oocyte to the ovarian wall. This has previously been interpreted as a micropyle. We show that the sperm does not enter the egg through the crater but in a differentiated region around it, mostly at its base. This region is characterized by a wrinkled surface and is the only site of the vitelline coat which specifically binds the lectin from Lotus tetragonolobus. The egg reacts explosively upon fertilization, ejecting vacuolar material from the crater. The role of this "egg reaction" in relation to the prevention of polyspermy is discussed. © 1988
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