Relationship Status Rather than Sociosexuality or Sexual Orientation Predicts Male Sexual Functioning.

Male sexual functioning is a prerequisite for conception and consequently for reproduction and is thus a crucial mechanism from an evolutionary and social perspective. Previous studies reported better sexual functioning in coupled compared to single individuals. However, it is not clear whether sexual functioning increases or decreases with a short-term casual sexual strategy, which is another possibility, along with a long-term strategy.

Novel Copper (II) Complexes with Fluorine-Containing Reduced Schiff Base Ligands Showing Marked Cytotoxicity in the HepG2 Cancer Cell Line.

Several novel copper (II) complexes of reduced Schiff bases containing fluoride substituents were prepared and structurally characterized by single-crystal X-ray diffraction. The complexes exhibited diverse structures, with the central atom in distorted tetrahedral geometry. The biological effects of the products were evaluated, specifically their cytotoxicity, antimicrobial, and antiurease activities, as well as affinity for albumin (BSA) and DNA (ct-DNA).

Makeup Usage in Women Is Positively Associated to Narcissism and Extraversion but Negatively to Psychopathy.

Appearance modification practices are ubiquitous, serving to enhance physical attractiveness and accrue social advantages, including increased desirability as a potential mate. Facial cosmetics are frequently used for appearance modification, yet individual differences in makeup usage remain understudied. While makeup usage in women has been linked to traits like narcissism and extraversion, the broader association with Dark Triad traits and how personality influences makeup application across diverse social contexts were less explored.

Examining the Fraternal Birth Order Effect and Sexual Orientation: Insights from an East European Population.

The development of human sexual orientation remains a complex and multifaceted subject. It is often studied but its origins continue to elude us. In this preregistered study, our primary objective was to demonstrate the fraternal birth order effect (FBOE), which assumes a higher prevalence of older brothers in gay men than in their straight counterparts and which has also been recently recorded in lesbian women.