Results 111 to 120 of about 2,456,397 (363)
Molecular evolution between chemistry and biology [PDF]
European Biophysics Journal, 2018 Biological evolution is reduced to three fundamental processes in the spirit of a minimal model: (i) Competition caused by differential fitness, (ii) cooperation of competitors in the sense of symbiosis, and (iii) variation introduced by mutation understood as error-prone reproduction. The three combinations of two fundamental processes each, ([Formula:
openaire +3 more sources
Local cellular neighborhood controls proliferation in cell competition
Molecular Biology of the Cell, 2017 Cell competition is a quality-control mechanism through which tissues eliminate unfit cells. Automated microscopy with deep-learning image analysis was used to measure single-cell behavior during competition.
Anna Bove +5 more
semanticscholar +1 more source
Receptor uptake arrays for vitamin B12, siderophores and glycans shape bacterial communities
, 2017 Molecular variants of vitamin B12, siderophores and glycans occur. To take up variant forms, bacteria may express an array of receptors. The gut microbe Bacteroides thetaiotaomicron has three different receptors to take up variants of vitamin B12 and 88 ...
Frank, Steven A.
core +1 more source
The Food Web of Potter Cove (Antarctica): complexity, structure and function [PDF]
, 2018 Knowledge of the food web structure and complexity are central to better understand ecosystem functioning. A food-web approach includes both species and energy flows among them, providing a natural framework for characterizing species’ ecological roles ...
Barrera Oro, Esteban +14 more
core +1 more source
Molecular Oncology, EarlyView.Breast cancer metastasis is associated with myeloid cell dysregulation and the lung‐specific accumulation of tumor‐supportive Gr1+ cells. Gr1+ cells support metastasis, in part, through a CHI3L1‐mediated mechanism, which can be targeted and inhibited with cargo‐free, polymeric nanoparticles.
Jeffrey A. Ma +9 more
wiley +1 more source
Frontiers in Bioengineering and BiotechnologySynthetic biology is an interdisciplinary field that brings together engineering and biology concepts alongside the arts and social sciences to develop solutions to pressing problems in our world.
Iain George +9 more
doaj +1 more source
Germination Biology and the Ecology of Annual Plants [PDF]
, 1992 We derive spatially explicit population models for the interaction between a species of annual plant and a community of perennial species. The models are used to explore the conditions for persistence of the annual in both a constant and a stochastic ...
Long, M.J., Rees, M.
core
Stochastic and deterministic models for age-structured populations with genetically variable traits
, 2009 Understanding how stochastic and non-linear deterministic processes interact is a major challenge in population dynamics theory. After a short review, we introduce a stochastic individual-centered particle model to describe the evolution in continuous ...
C. Besse +5 more
core +3 more sources
Molecular Oncology, EarlyView.This nationwide study evaluated KRAS and NRAS mutations in 10 754 Turkish patients with metastatic colorectal cancer. The results revealed a mutation frequency of 51.1%, with 46.6% having KRAS mutations, 4.5% having NRAS mutations, and 48.5% being wild‐type for both.
Gozde Kavgaci +6 more
wiley +1 more source
Synthetic biology and biosecurity: challenging the ‘myths’
Frontiers in Public Health, 2014 Synthetic biology, a field that aims to ‘make biology easier to engineer’, is routinely described as leading to an increase in the ‘dual use’ threat, i.e.
Catherine eJefferson +2 more
doaj +1 more source