Results 61 to 70 of about 1,972,073 (332)

A Quantitative Test of Population Genetics Using Spatio-Genetic Patterns in Bacterial Colonies [PDF]

The American Naturalist 178, 538 (2011), 2011
It is widely accepted that population genetics theory is the cornerstone of evolutionary analyses. Empirical tests of the theory, however, are challenging because of the complex relationships between space, dispersal, and evolution. Critically, we lack quantitative validation of the spatial models of population genetics.
arxiv   +1 more source

Context, ethics and pharmacogenetics [PDF]

, 2006
Most of the literature on pharmacogenetics assumes that the main problems in implementing the technology will be institutional ones (due to funding or regulation) and that although it involves genetic testing, the ethical issues involved in ...
Adam M. Hedgecoe, Akhtar, Anderson, Anon, Bazell, Beauchamp, Beeson, Brodaty, Brushwood, Clarke, DeVries, Emery, Ensom, Evans, Farlow, Farrer, Fox, Ginsburg, Haimes, Haseltine, Hedgecoe, Hedgecoe, Hoffmaster, Hoffmaster, Issa, Issa, Jazwinska, Johnson, Kumar, Kumar, Levine, Lindpaintner, Lindpaintner, McConnell, McLeod, Nelson, Noguchi, Nuffield Council on Bioethics., Palmer, Pfost, Poirier, Post, Relkin, Richard, Rioux, Ritchie, Robertson, Roses, Rothstein, Rusnak, Sadee, Saunders, Shi, Smith, Smith, Sugarman, Vaszar, Wolf, Zussman   +58 more
core   +1 more source

The Saccharomyces cerevisiae amino acid transporter Lyp1 has a broad substrate spectrum

FEBS Letters, EarlyView.
In Saccharomyces cerevisiae, Yeast Amino acid Transporter family members mediate the import of amino acids, ranging from substrate specialists to generalists. Here, we show that the specialist transporter, Lyp1, has a broader substrate spectrum than previously described, with affinity constants spanning from micromolar to millimolar.
Foteini Karapanagioti, Sebastian Obermaier, Dirk J. Slotboom, Bert Poolman   +3 more
wiley   +1 more source

The gut microbiota–brain axis in neurological disorders

MedComm
Previous studies have shown a bidirectional communication between human gut microbiota and the brain, known as the microbiota–gut–brain axis (MGBA). The MGBA influences the host's nervous system development, emotional regulation, and cognitive function ...
Mingming You, Nan Chen, Yuanyuan Yang, Lingjun Cheng, Hongzhang He, Yanhua Cai, Yating Liu, Haiyue Liu, Guolin Hong   +8 more
doaj   +1 more source

Social context prevents heat hormetic effects against mutagens during fish development

FEBS Letters, EarlyView.
This study shows that sublethal heat stress protects fish embryos against ultraviolet radiation, a concept known as ‘hormesis’. However, chemical stress transmission between fish embryos negates this protective effect. By providing evidence for the mechanistic molecular basis of heat stress hormesis and interindividual stress communication, this study ...
Lauric Feugere, Claudio Silva De Freitas, Adam Bates, Kenneth B. Storey, Pedro Beltran‐Alvarez, Katharina C. Wollenberg Valero   +5 more
wiley   +1 more source

DIEANet: an attention model for histopathological image grading of lung adenocarcinoma based on dimensional information embedding

Scientific Reports
Efficient and rapid auxiliary diagnosis of different grades of lung adenocarcinoma is conducive to helping doctors accelerate individualized diagnosis and treatment processes, thus improving patient prognosis. Currently, there is often a problem of large
Zexin Wang, Jing Gao, Min Li, Enguang Zuo, Chen Chen, Cheng Chen, Fei Liang, Xiaoyi Lv, Yuhua Ma   +8 more
doaj   +1 more source

Comment: Quantifying the Fraction of Missing Information for Hypothesis Testing in Statistical and Genetic Studies [PDF]

Statistical Science 2008, Vol. 23, No. 3, 318-320, 2011
Comment on "Quantifying the Fraction of Missing Information for Hypothesis Testing in Statistical and Genetic Studies" [arXiv:1102.2774]
arxiv   +1 more source

miRNA‐29 regulates epidermal and mesenchymal functions in skin repair

FEBS Letters, EarlyView.
miRNA‐29 inhibits cell‐to‐cell and cell‐to‐matrix adhesion by silencing mRNA targets. Adhesion is controlled by complex interactions between many types of molecules coded by mRNAs. This is crucial for keeping together the layers of the skin and for regenerating the skin after wounding.
Lalitha Thiagarajan, Rosa Sanchez‐Alvarez, Chiho Kambara, Poojitha Rajasekar, Yuluang Wang, François Halloy, Jonathan Hall, Hans‐Jürgen Stark, Iris Martin, Petra Boukamp, Svitlana Kurinna   +10 more
wiley   +1 more source

Systematic Testing of Genetic Algorithms: A Metamorphic Testing based Approach [PDF]

arXiv, 2018
Genetic Algorithms are a popular set of optimization algorithms often used to aid software testing. However, no work has been done to apply systematic software testing techniques to genetic algorithms because of the stochasticity and the lack of known outputs for genetic algorithms.
arxiv  

A Genetic Algorithm based Approach for Test Data Generation in Basis Path Testing [PDF]

, 2014
Software Testing is a process to identify the quality and reliability of software, which can be achieved through the help of proper test data. However, doing this manually is a difficult task due to the presence of number of predicate nodes in the module. So, this leads towards a problem of NP-complete.
arxiv   +1 more source