Desiccation tolerance and lichenization: a case study with the aeroterrestrial microalga Trebouxia sp. (Chlorophyta) [PDF]
Coccoid algae in the Trebouxia genus are the most common photobionts of chlorolichens but are only sporadically found in soil or bark outside of a lichen. They all appear to be desiccation tolerant, i.e. they can survive drying to water contents of below
Bertuzzi, Stefano +3 more
core +1 more source
Update on the Worsening Particle Radiation Environment Observed by CRaTER and Implications for Future Human Deep‐Space Exploration [PDF]
Over the last decade, the solar wind has exhibited low densities and magnetic field strengths, representing anomalous states that have never been observed during the space age. As discussed by Schwadron, Blake, et al.
Blake, J. B. +20 more
core +1 more source
The PROFOUND Database for evaluating vegetation models and simulating climate impacts on European forests [PDF]
Process-based vegetation models are widely used to predict local and global ecosystem dynamics and climate change impacts. Due to their complexity, they require careful parameterization and evaluation to ensure that projections are accurate and reliable.
Bolte, Andreas +20 more
core +1 more source
Preventing premature convergence and proving the optimality in evolutionary algorithms [PDF]
http://ea2013.inria.fr//proceedings.pdfInternational audienceEvolutionary Algorithms (EA) usually carry out an efficient exploration of the search-space, but get often trapped in local minima and do not prove the optimality of the solution.
Alliot, Jean-Marc +3 more
core +3 more sources
Limits of Sobolev homeomorphisms [PDF]
Let X; Y subset of R-2 be topologically equivalent bounded Lipschitz domains. We prove that weak and strong limits of homeomorphisms h: X (onto)-> Y in the Sobolev space W-1,W-p (X, R-2), p >= 2; are the same.
Iwaniec, Tadeusz, Onninen, Jani
core +1 more source
An imperialist competitive algorithm for the winner determination problem in combinatorial auction [PDF]
Winner Determination problem (WDP) in combinatorial auction is an NP-complete problem. The NP-complete problems are often solved by using heuristic methods and approximation algorithms.
Balafar, Mohammad Ali +2 more
core +4 more sources
An initial investigation into endothelial CC chemokine expression in the human rheumatoid synovium [PDF]
Rheumatoid arthritis (RA) is a destructive and chronic autoimmune inflammatory disease. Synovial inflammation is a major feature of RA and is associated with leukocyte recruitment. Leukocytes cross the endothelial cells (ECs) into the synovial tissue and
core +1 more source
Inequality and growth: evidence from panel cointegration [PDF]
This paper uses heterogeneous panel cointegration techniques to estimate the long-run effect of income inequality on per-capita income for 46 countries over the period 1970-1995.
Dierk Herzer, Sebastian Vollmer
core +1 more source
Drug resistance mutations against protease, reverse transcriptase and integrase inhibitors in people living with HIV-1 receiving boosted protease inhibitors in South Africa [PDF]
The South African national combination antiretroviral therapy (cART) roll-out program started in 2006, with over 4.4 million people accessing treatment since it was first introduced. HIV-1 drug resistance can hamper the success of cART.
Brado, Dominik +6 more
core +3 more sources
“My Name is My Password:” Understanding Children’s Authentication Practices [PDF]
Children continue to use technology at an increasing rate, more and more of which require authentication via usernames and passwords.We seek to understand how children ages 5-11 years old create and use their credentials.
Fails, Jerry Alan +2 more
core +1 more source

