Results 71 to 80 of about 9,041,918 (353)
Youth smoking and anti-smoking policies in North Dakota: a system dynamics simulation study
Substance Abuse Treatment, Prevention, and Policy, 2019 Background The current study utilizes system dynamics to model the determinants of youth smoking and simulate effects of anti-smoking policies in the context of North Dakota, a state with one of the lowest cigarette tax rates in the USA.
Arielle S. Selya +3 more
doaj +1 more source
Genus, 2022 Women live longer than men and the absolute difference between male and female mortality risk reaches its maximum at old ages. We decomposed the sex gap in life expectancy and investigated the changes over time of the profile of the age–cause specific ...
Alessandro Feraldi, Virginia Zarulli
doaj +1 more source
A stepwise emergence of evolution in the RNA world
FEBS Letters, EarlyView.How did biological evolution emerge from chemical reactions? This perspective proposes a gradual scenario of self‐organization among RNA molecules, where catalytic feedback on random mixtures plays the central role. Short oligomers cross‐ligate, and self‐assembly enables heritable variations. An event of template‐externalization marks the transition to
Philippe Nghe
wiley +1 more source
Odour-mediated sexual attraction in nabids (Heteroptera: Nabidae)
European Journal of Entomology, 2008 In many insects, mate finding is mediated by volatile sex pheromones, but evidence in nabids is still fragmentary. The role of odour-mediated sexual attraction in two nabid species, Nabis pseudoferus and N.
Steffen ROTH +2 more
doaj +1 more source
Resource allocation with population dynamics [PDF]
2017 55th Annual Allerton Conference on Communication, Control, and Computing (Allerton), 2017 Many analyses of resource-allocation problems employ simplistic models of the population. Using the example of a resource-allocation problem of Marecek et al. [arXiv:1406.7639], we introduce rather a general behavioural model, where the evolution of a heterogeneous population of agents is governed by a Markov chain.
Epperlein, Jonathan, Marecek, Jakub
openaire +4 more sources
Molecular Oncology, EarlyView.Urine is a rich source of biomarkers for cancer detection. Tumor‐derived material is released into the bloodstream and transported to the urine. Urine can easily be collected from individuals, allowing non‐invasive cancer detection. This review discusses the rationale behind urine‐based cancer detection and its potential for cancer diagnostics ...
Birgit M. M. Wever +1 more
wiley +1 more source
Population Dynamics of Bacterial Persistence
PLoS ONE, 2013 Persistence is a prime example of phenotypic heterogeneity, where a microbial population splits into two distinct subpopulations with different growth and survival properties as a result of reversible phenotype switching. Specifically, persister cells grow more slowly than normal cells under unstressed growth conditions, but survive longer under stress
Patra, P., Klumpp, S.
openaire +6 more sources
Surfaceome: a new era in the discovery of immune evasion mechanisms of circulating tumor cells
Molecular Oncology, EarlyView.In the era of immunotherapies, many patients either do not respond or eventually develop resistance. We propose to pave the way for proteomic analysis of surface‐expressed proteins called surfaceome, of circulating tumor cells. This approach seeks to identify immune evasion mechanisms and discover potential therapeutic targets. Circulating tumor cells (
Doryan Masmoudi +3 more
wiley +1 more source
Diversification in causes of death in low-mortality countries: emerging patterns and implications
BMJ Global Health, 2020 Introduction An important role of public health organisations is to monitor indicators of variation, so as to disclose underlying inequality in health improvement.
José Manuel Aburto +2 more
doaj +1 more source
Neural population dynamics during reaching
Nature, 2012 Most theories of motor cortex have assumed that neural activity represents movement parameters. This view derives from what is known about primary visual cortex, where neural activity represents patterns of light.
M. Churchland +6 more
semanticscholar +1 more source