Results 1 to 10 of about 4,110,243 (425)
Monte Carlo Simulations of Sexual Reproduction [PDF]
, 1996 Modifying the Redfield model of sexual reproduction and the Penna model of biological aging, we compare reproduction with and without recombination in age-structured populations. In contrast to Redfield and in agreement with Bernardes we find sexual reproduction to be preferred to asexual one.
Bernardes +18 more
arxiv +3 more sources
Catastrophic senescence of the Pacific salmon without mutation-accumulation [PDF]
, 2001 We derive catastrophic senescence of the Pacific salmon from an aging model which was recently proposed by Stauffer. The model is based on the postulates of a minimum reproduction age and a maximal genetic lifespan. It allows for self-organization of a typical age of first reproduction and a typical age of death.
Meyer-Ortmanns, Hildegard
arxiv +3 more sources
Computation of the basic reproduction numbers for reaction-diffusion epidemic models
Mathematical biosciences and engineering : MBE, 2023 We consider a class of k-dimensional reaction-diffusion epidemic models (k=1,2,⋯) that are developed from autonomous ODE systems. We present a computational approach for the calculation and analysis of their basic reproduction numbers.
Chayu Yang, Jin Wang
semanticscholar +1 more source
Fertility & Reproduction, 2023 Background: In a survey on fertility knowledge published in 2013 (Cardiff Fertility Knowledge Scale [CFKS]), Japan ranked 78th among 79 countries. This finding encouraged the Japanese government to revise the curriculum for sex education in 2015.
Satomi Akamatsu +4 more
doaj +1 more source
Preliminary prediction of the basic reproduction number of the Wuhan novel coronavirus 2019‐nCoV [PDF]
Journal of Evidence-Based Medicine, 2020 To estimate the basic reproduction number of the Wuhan novel coronavirus (2019‐nCoV).
Tao Zhou +7 more
semanticscholar +1 more source
Veterinary Medicine International, 2021 Artificial insemination has proven to be an effective method for increasing population size and genetic quality of Kacang goats. However, innovation is required to maintain the quality of Kacang goat semen in storage.
Suherni Susilowati +5 more
doaj +1 more source
World Rabbit Science, 2022 In the present study, three experiments were designed to identify the most appropriate technique for freezing rabbit semen. Experiment 1 aimed to determine the optimal levels of dimethyl sulfoxide (DMSO) contents in freezing medium and their effects on ...
Kamel M. Mohammed +3 more
doaj +1 more source
Journal of Animal Science and Biotechnology, 2023 Background Sperm migration by thermotaxis is a guidance mechanism that operates along the oviduct and it has proved to be a valid method for selecting spermatozoa with low DNA fragmentation (SDF) in mice, humans, and stallions.
Sara Ruiz-Díaz +10 more
doaj +1 more source
Application of Mass Spectrometry Imaging in Uro-Oncology: Discovering Potential Biomarkers
Life, 2022 A growing need is emerging worldwide for new molecular markers which could enhance the accuracy of diagnostic and therapeutic methods for detecting urogenital cancers. Mass spectrometry imaging (MSI) is a very promising tool in this regard.
Péter Czétány +6 more
doaj +1 more source
Journal of Immunology Research, 2022 Purpose. Numerous studies have described the presence of crosstalk between trophoblasts and macrophages and the critical role it plays in recurrent miscarriage (RM).
Jing Zhang, Yu Tao, Renfei Cai, Yao Wang
doaj +1 more source