The influence of sociodemographic and donation behaviour characteristics on blood donation motivations.

Background: The study of donation motivations is essential at blood transfusion centres, because of the impact of these motivations on an individual's decision to donate. The heterogeneity of donor behaviour and the overall lack of consensus on how to assess it (e.g.

Applying artificial intelligence to explore sexual cyberbullying behaviour.

Sexual cyberbullying is becoming a serious problem in today's society. In the workplace, this issue is more complex because of the power imbalance between potential perpetrators and victims. Preventing sexual cyberbullying in organizations is very important for a safety and respectful workplace.

Astrotourism and Night Sky Brightness Forecast: First Probabilistic Model Approach.

Celestial tourism, also known as astrotourism, astronomical tourism or, less frequently, star tourism, refers to people's interest in visiting places where celestial phenomena can be clearly observed. Stars, skygazing, meteor showers or comets, among other phenomena, arouse people's interest, however, good night sky conditions are required to observe such phenomena. From an environmental point of view, several organisations have surfaced in defence of the protection of dark night skies against light pollution, while from an economic point of view; the idea also opens new possibilities for development in associated areas.

[Optimization of the prediction of financial problems in Spanish private health companies using genetic algorithms].

Objective: This paper presents a methodology to optimize, using Altman's Z-Score for private companies, the prediction of private companies of the Spanish health sector entering a situation of bankruptcy.

Method: The proposed method consists of the application of genetic algorithms (GA) to find the coefficients of the formula of the chain of ratios proposed by Altman in the version of the score for private companies which optimize the prediction for Spanish private health companies, maximizing sensitivity and specificity, and thereby reducing type I and type II errors. For this purpose, a sample of 5,903 companies from the Spanish private health sector obtained from the database of the Iberian Balance Analysis System (SABI) between 2007 and 2015 was used.

An exploration of anomia as origin of work absence.

Background: Although it also portrays a loss of function in psychology, in this context the term anomia (from the Greek, an-: absence, and -nomos: law) is used to describe a sociological phenomenon that can lead individuals to misbehave due to feelings of valuelessness and cynicism resulting from a lack of integration in social life (Srole, 1956).

Objective: Previous research has neglected anomia as part of the origin of employee work absence. This study tests the association between anomia and absence - operationalized as propensity to abusive absence due to illness.

Environmental management in small and medium-sized companies: an analysis from the perspective of the theory of planned behavior.

In the business context, concern for the environment began to develop when pressure from the public administration and environmental awareness groups raised the specific requirements for companies. The Theory of Planned Behavior considers that people's conduct is determined by the intention of carrying out a certain behavior. Thus, the individual's intent is determined by three factors related to the desired outcome of the behavior: the Personal Attitude toward the Results, the Perceived Social Norms, and the Perceived Behavioral Control over the action.