Results 91 to 100 of about 1,812,822 (414)

A Comparative Study of Brain Reproduction Methods for Morphologically Evolving Robots [PDF]

arXiv, 2023
In the most extensive robot evolution systems, both the bodies and the brains of the robots undergo evolution and the brains of 'infant' robots are also optimized by a learning process immediately after 'birth'. This paper is concerned with the brain evolution mechanism in such a system.
arxiv  

Sexual and reproductive rights in adolescence

Revista da Associação Médica Brasileira, 2012
To present legal milestones to ensure the Brazilian adolescent autonomy indealing with their sexual and reproductive health.Literature review of national legislation published on the official sites of governmental organs (Ministry of Health and Ministry of Education) and Class Associations (Federal Council of Medicine [Conselho Federal de Medicina--CFM]
Silvia Piedade de Moraes, Maria Sylvia de Souza Vitalle   +1 more
openaire   +3 more sources

Mate limitation, recurrent epidemic outbreaks, and the coexistence of sexual and asexual plant parasites [PDF]

, 2014
To date, relatively few studies have focused on the effects of sex on population dynamics. Previous models found that sexual reproduction may either dampen population fluctuations or accentuate population fluctuations, depending on mating system notably.
Hamelin, Frédéric, Lemesle, Valérie, Mailleret, Ludovic, Ravigné, Virginie   +3 more
core  

Simulated emergence of cyclic sexual-asexual reproduction

, 2001
Motivated by the cyclic pattern of reproductive regimes observed in some species of green flies (``{\it aphids}''), we simulate the evolution of a population enduring harsh seasonal conditions for survival.
A. Racco, Baake, Blackman, J.S. Sá Martins, Maynard Smith, Moss de Oliveira, Moss de Oliveira, Pekalski, Penna, Penna, Sá Martins, Sá Martins, Sá Martins, Sá Martins, Örçal   +14 more
core   +1 more source

Tonic signaling of the B‐cell antigen‐specific receptor is a common functional hallmark in chronic lymphocytic leukemia cell phosphoproteomes at early disease stages

Molecular Oncology, EarlyView.
B‐cell chronic lymphocytic leukemia (B‐CLL) and monoclonal B‐cell lymphocytosis (MBL) show altered proteomes and phosphoproteomes, analyzed using mass spectrometry, protein microarrays, and western blotting. Identifying 2970 proteins and 316 phosphoproteins, including 55 novel phosphopeptides, we reveal BCR and NF‐kβ/STAT3 signaling in disease ...
Paula Díez, Pablo Juanes‐Velasco, Marina L. García‐Vaquero, Conrad Droste, Alicia Landeira‐Viñuela, Miguel Alcoceba, Helena Fidalgo‐Gómez, Sara Misiego‐Herrero, Almudena Navarro‐Bailón, Mónica Baile, José M. Bastida, Jose Manuel Sanchez‐Santos, Rafael Góngora, Julia Almeida, Marcos Gonzalez‐Diaz, Alberto Orfao, Javier De Las Rivas, Manuel Fuentes   +17 more
wiley   +1 more source

Multiple Pathways to Homothallism in Closely Related Yeast Lineages in the Basidiomycota

mBio, 2021
Sexual reproduction is important for the biology of eukaryotes because it strongly impacts the dynamics of genetic variation. In fungi, although sexual reproduction is usually associated with the fusion between cells belonging to different individuals ...
Alexandra Cabrita, Márcia David-Palma, Patrícia H. Brito, Joseph Heitman, Marco A. Coelho, Paula Gonçalves   +5 more
doaj   +1 more source

Flowering in British Lemna: A rare, cyclic or simply overlooked phenomenon? [PDF]

, 1997
It is largely presumed that reproduction in British Lemna, as in other British Lemnaceae, is almost entirely asexual, with new daughter fronds being produced from the side pouches of older mother fronds.
Bramley, Jon
core  

Hydrogen sulfide repairs testicular damage induced by heat stress in rats

FEBS Open Bio, EarlyView.
Heat stress can cause testicular damage and affect fertility. We investigated the potential protective role of hydrogen sulfide (H2S) against heat stress‐induced testicular injury and observed that H2S donor NaHS can effectively restore testicular damage in rats by inhibiting inflammation and oxidative stress. Our results suggest that H2S might be used
Xinyu Guo, Yupeng Yin, Susu Guo, Xiaoyan Chen, Suyan Xie, Shiqin Chen, Yan Huang   +6 more
wiley   +1 more source

Mathematical toy model inspired by the problem of the adaptive origins of the sexual orientation continuum [PDF]

Royal Society Open Science 3: 160403 (2016), 2015
Same-sex sexual behavior is ubiquitous in the animal kingdom, but its adaptive origins remain a prominent puzzle. Here I suggest the possibility that same-sex sexual behavior arises as a consequence of the competition between an evolutionary drive for a wide diversity in traits, which improves the adaptability of a species, and a drive for sexual ...
arxiv   +1 more source

Engineering species-like barriers to sexual reproduction

Nature Communications, 2016
Controlling the exchange of genetic information between sexually reproducing populations has applications in agriculture, eradication of disease vectors, control of invasive species, and the safe study of emerging biotechnology applications.
Maciej Maselko, Stephen C. Heinsch, Jeremy M. Chacón, W. Harcombe, M. Smanski   +4 more
semanticscholar   +1 more source