Results 41 to 50 of about 177,535 (359)
A study of computational and conceptual complexities of compartment and agent based models [PDF]
The ongoing COVID-19 pandemic highlights the essential role of mathematical models in understanding the spread of the virus along with a quantifiable and science-based prediction of the impact of various mitigation measures. Numerous types of models have been employed with various levels of success.
arxiv
The host galaxies and classification of active galactic nuclei [PDF]
We present an analysis of the host properties of 85224 emission-line galaxies selected from the Sloan Digital Sky Survey. We show that Seyferts and LINERs form clearly separated branches on the standard optical diagnostic diagrams.
L. Kewley+5 more
semanticscholar +1 more source
The Effect of Forced Choice with Constant Choice Experiment Complexity
In a choice experiment, when respondents are not given the opportunity to choose none of the options offered in a choice set, the choices can be considered forced.
Jerrod M. Penn, Wuyang Hu, Linda J. Cox
doaj +1 more source
The interaction of deep mantle plumes with lithospheric plates is one fundamental concept of plate tectonics. Based on observations mainly made on the Hawaiian volcanoes the compositional evolution of hotspot volcanoes is believed to reflect the ...
Karsten M. Haase+2 more
doaj +1 more source
Growth and maximum size of tiger sharks (Galeocerdo cuvier) in Hawaii. [PDF]
Tiger sharks (Galecerdo cuvier) are apex predators characterized by their broad diet, large size and rapid growth. Tiger shark maximum size is typically between 380 & 450 cm Total Length (TL), with a few individuals reaching 550 cm TL, but the maximum ...
Carl G Meyer+7 more
doaj +1 more source
Efficient intra- and inter-night linking of asteroid detections using kd-trees [PDF]
The Panoramic Survey Telescope And Rapid Response System (Pan-STARRS) under development at the University of Hawaii's Institute for Astronomy is creating the first fully automated end-to-end Moving Object Processing System (MOPS) in the world. It will be capable of identifying detections of moving objects in our solar system and linking those ...
arxiv +1 more source
Crop Diversification Leads to Diverse Bird Problems in Hawaiian Agriculture
Over the last 20 years, Hawaii’s agriculture has shifted from a focus on sugar cane (Saccharum officinarum) and pineapples (Ananas comosus) produced on large farms to a diverse array of products produced on a multitude of smaller farms.
Marni E. Koopman, William C. Pitt
doaj +1 more source
Multimodal machine learning for 3-dimensional characterization of hidden groundwater and geothermal resources [PDF]
We present a multimodal machine learning (MML) workflow to assimilate and simultaneously predict the 3d distribution of numeric and categorical features along a groundwater-geothermal continuum. Success of the MML workflow relies on a transductive learning algorithm that projects field modalities onto a single embedding space (hypersurface ...
arxiv