Most previous models of populations mixed for reproductive mode have omitted important local interactions between sexual and asexual individuals. We propose a cellular automaton model where local rules focus on fertilization and colonization. This model produces rich sets of data which are then studied by means of spatial statistics. Results point to the fixation of one of the two reproductive modes in the landscape. However, some examples of coexistence of sexual and asexual conspecifics over long periods of time are also found. This model is an example of a CA that diverges from its mean field approximation. The formation of sexual and asexual clusters reduces effective colonization rate in the CA and may account for this behaviour.
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http://dx.doi.org/10.1006/jtbi.2002.3039 | DOI Listing |
JMIR Hum Factors
January 2025
Hackensack Meridian School of Medicine, 123 Metro Blvd, Nutley, NJ, 07110, United States, 1 7248419463.
Background: Transgender and nonbinary (TGNB) individuals are increasingly intentionally becoming pregnant to raise children, and hospital websites should reflect these trends. For prospective TGNB parents, a hospital website is the only way they can assess their safety from discrimination while receiving perinatal care. Cisnormativity enforced by communication gaps between medical institutions and TGNB patients can and has caused delays in receiving urgent care during their pregnancy.
View Article and Find Full Text PDFPublic Health
January 2025
Penn State College of Nursing, University Park, PA, USA.
Objectives: This study investigated the associations between diverse sexual and gender identities and adolescent use of e-cigarettes, tobacco products, and cannabis vaping.
Study Design: Cross-sectional study.
Methods: Data were collected from a nationally representative sample of high school students in 2023.
Nat Commun
January 2025
Department of Medical Microbiology, Radboud University Medical Center, Nijmegen, The Netherlands.
Despite the enormous significance of malaria parasites for global health, some basic features of their ultrastructure remain obscure. Here, we apply high-resolution volumetric electron microscopy to examine and compare the ultrastructure of the transmissible male and female sexual blood stages of Plasmodium falciparum as well as the more intensively studied asexual blood stages revisiting previously described phenomena in 3D. In doing so, we challenge the widely accepted notion of a single mitochondrion by demonstrating the presence of multiple mitochondria in gametocytes.
View Article and Find Full Text PDFArch Sex Behav
December 2024
Department of Psychology, Carleton University, 1125 Colonel By Drive, Ottawa, ON, K1S 5B6, Canada.
Among young adults, engaging in sexting (i.e., sharing sexually explicit materials of oneself with others) can be a healthy and normative sexual experience.
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