Results 81 to 90 of about 6,467,658 (289)

A little theory of everything, with heavy neutral leptons

Journal of High Energy Physics, 2020
Recently a new model of “Affleck-Dine inflation” was presented, that produces the baryon asymmetry from a complex inflaton carrying baryon number, while being consistent with constraints from the cosmic microwave background. We adapt this model such that
James Cline, Matteo Puel, Takashi Toma
doaj   +1 more source

Coral reef diversity refutes the neutral theory of biodiversity

, 2006
The global decline of coral reefs highlights the need to understand the mechanisms that regulate community structure and sustain biodiversity in these systems. The neutral theory, which assumes that individuals are demographically identical regardless of
Hughes, T P, Maria Dornelas, Dornelas, Maria, Sean R. Connolly, Hughes, Terrence P., Connolly, S R, Connolly, Sean R., Terence P. Hughes   +7 more
core   +1 more source

Ethical Foreground and Background in Adult Educator Work

New Directions for Adult and Continuing Education, EarlyView.
ABSTRACT Adult educators work in a complex ethical environment. The very act of contributing to the learning of another is fraught with moral overtones. In this paper we consider the ethical dimensions of adult educator practice by distinguishing the ethical features of the context or ‘background’ of practice from the ethical capabilities and decision ...
Steven Hodge, Sonal Nakar
wiley   +1 more source

A comparison of neutral landscapes - NK, NKp and NKq

, 2002
Recent research in molecular evolution has raised awareness of the importance of selective neutrality. Several different models of neutrality have been proposed based on Kauffman’s well-known NK landscape model.
Geard, N, Tonkes, B, Wiles, J, Hallinan, J, Skellett, B   +4 more
core   +1 more source

Environment and diet shape the geography-specific Drosophila melanogaster microbiota composition

Applied and Environmental Microbiology
Geographic and environmental variation in the animal microbiota can be directly linked to the evolution and wild fitness of their hosts, but it can be difficult to explain the underlying patterns.
Joseph T. Gale, Rebecca Kreutz, Sarah J. Gottfredson Morgan, Emma K. Davis, Connor Hough, Wendy A. Cisneros Cancino, Brittany Burnside, Ryan Barney, Reese Hunsaker, Ashton Tanner Hoyt, Aubrey Cluff, Maggie Nosker, Chandler Sefcik, Eliza Beales, Jack K. Beltz, Paul B. Frandsen, Paul Schmidt, John M. Chaston   +17 more
doaj   +1 more source

Forms and genesis of species abundance distributions [PDF]

Computational Ecology and Software, 2015
Species abundance distribution (SAD) is one of the most important metrics in community ecology. SAD curves take a hollow or hyperbolic shape in a histogram plot with many rare species and only a few common species. In general, the shape of SAD is largely
Evans O. Ochiaga, Cang Hui
doaj  

Neutral Theory and Plankton Biodiversity

Annual Review of Marine Science
The biodiversity of the plankton has been interpreted largely through the monocle of competition. The spatial distancing of phytoplankton in nature is so large that cell boundary layers rarely overlap, undermining opportunities for resource-based competitive exclusion.
Michael J, Behrenfeld, Kelsey M, Bisson
openaire   +2 more sources

Gravity‐Dependent Modulation of Downbeat Nystagmus: Insights From Velocity‐Storage Dysfunction

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Downbeat nystagmus varies with head position, a phenomenon termed gravity‐dependent modulation. We aimed to clarify its mechanism using a velocity‐storage model. Methods In 10 patients with downbeat nystagmus due to cerebellar disorders, we recorded eye movements at different pitch‐ and roll‐axis head positions.
Ji‐Hyung Park, Eun‐Hyuk Choi, Jorge Otero‐Millan, David S. Zee, Jeong‐Yoon Choi, Ji‐Soo Kim   +5 more
wiley   +1 more source

Safety and Efficacy of GLP‐1 Receptor Agonists in Adults With Epilepsy, Obesity, and Type 2 Diabetes

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Managing obesity in patients with epilepsy is complicated by the weight‐gaining properties of essential antiseizure medications (ASMs) such as valproate and pregabalin. We evaluated the safety and efficacy of initiating glucagon‐like peptide‐1 receptor agonists (GLP‐1 RAs) in this population.
Hyoshin Son, Inyoung Hwang, Sang Won Lee, Yun Kim   +3 more
wiley   +1 more source

Investigating macroecological patterns in coarse-grained microbial communities using the stochastic logistic model of growth

eLife
The structure and diversity of microbial communities are intrinsically hierarchical due to the shared evolutionary history of their constituents. This history is typically captured through taxonomic assignment and phylogenetic reconstruction, sources of ...
William R Shoemaker, Jacopo Grilli
doaj   +1 more source