150 Works

Reducing adaptive optics latency using many-core processors

David Barr, Alastair Basden, Nigel Dipper & Noah Schwartz

Progress with the 4m high-order AO demonstrator, CHOUGH

Bharmal Nazim, Daniel Holck, Richard Myers, Timothy Morris, Marc Dubbledam, Alastair Basden & Edward Younger

An Integrated MASS/DIMM Monitor Based on a Low-Noise CCD Detector

Andres Guesalaga, James Osborne, Marco Sarazin, Benoit Neichel, Saavidra Perera, Richard Wilson & Peter Wizinowich

Statistical and morphological analysis of mock galactic fields in the Global-MCAO perspective

Elisa Portaluri, Valentina Viotto, Maria Bergomi, Federico Biondi, Marco Dima, Jacopo Farinato, Davide Greggio, Demetrio Magrin & Roberto Ragazzoni

SHARK-NIR Channel: a high contrast imager with coronagraphic capabilities for the Large Binocular Telescope

Jacopo Farinato, Carlo Baffa, Andrea Baruffolo, Maria Bergomi, Luca Carbonaro, Elena Carolo, Alexis Carlotti, Mauro Centrone, Laird Close, Marco De Pascale, Marco Dima, Simone Esposito, Daniela Fantinel, Giancarlo Farisato, Wolfgang Gaessler, Emanuele Giallongo, Davide Greggio, Olivier Guyon, Philip Hinz, Franco Lisi, Demetrio Magrin, Luca Marafatto, Fernando Pedichini, Enrico Pinna, Alfio Puglisi … & Valentina Viotto

Implementation of SLODAR atmospheric turbulence profiling to the ARGOS system

Tommaso Mazzoni, Lorenzo Busoni, Simone Esposito & Marco Bonaglia

Self-Coherent Camera as a focal plane phasing sensor - Overview and early comparison with the Zernike Phase Contrast Sensor

Pierre Janin-Potiron, Patrice Martinez, Pierre Baudoz & Marcel Carbillet

Selex infrared sensors for astronomy – present and future

Ian Baker, Chris Maxey & Keith Barnes

SPHERE extreme AO system On-sky operation, final performance and future improvements

Thierry Fusco, Jean-François Sauvage, Kjetil Dohlen, David Mouillet, Julien Girard, Markus Kasper, Cyril Petit & Jean-Luc Beuzit

Astrometry with MCAO at Gemini and at ELTs

Tobias Fritz, Nitya Kallivayalil, Eleazar R. Carrasco, Benoit Neichel, Richard Davies, Rachael Beaton, Dylan Angell, Sean Linden, Paul Zivick, Steve Majewski, Gulliermo Damke, Mike Boylan-Kolchin, Roeland Van Der Marel & Tony Sohn

Walruses produce intense impulse sounds by clap-induced cavitation during breeding displays

Colleen Reichmuth & Ole Næsbye Larsen
Male walruses produce the longest continuous reproductive displays known in the animal kingdom to convey their individual fitness to potential rivals, and possibly to potential mates. Here we document the ability of a captive walrus to produce intense, rhythmic sounds through a non-vocal pathway involving deliberate, regular collision of the fore flippers. High-speed videography linked to an acoustic onset marker revealed sound production through cavitation, with the acoustic impulse generated by each forceful clap exceeding...

Maximum Likelihood Estimate of Payoffs from Time Series

Jacopo Magnani, Daniel Friedman & Barry Sinervo
We fit the data to a structural model estimated via maximum likelihood (ML) techniques. The model in the matlab code joins discrete time replicator dynamics with a stochastic structure, given by the Dirichlet distribution or, alternatively, by the logistic distribution.

Microsatellite genotypes and extraction plate positions from publication: Genetic structure across urban and agricultural landscapes reveals evidence of resource specialization and philopatry in the Eastern carpenter bee, Xylocopa virginica L.

Kimberly Ballare & Shalene Jha
Human activity continues to impact global ecosystems, often by altering the habitat suitability, persistence, and movement of native species. It is thus critical to examine the population genetic structure of key ecosystem-service providers across human-altered landscapes to provide insight into the forces that limit wildlife persistence and movement across multiple spatial scales. While some studies have documented declines of bee pollinators as a result of human-mediated habitat alteration, others suggest that some bee species may...

Winter-run Chinook salmon resource selection function 2020

Peter Dudley
We use historic aerial redd surveys of Sacramento River winter-run Chinook salmon, coupled with 2D hydraulic modeling, and apply Bayesian, multivariate polynomial, logistic regression to calculate spawning resource selection functions (RSFs) based on water velocity and depth, and examine their interactions with water temperature. Our methods resulted in univariate and multivariate resource selection functions with no interaction between velocity and depth preference, but credible interactions between both velocity and depth preference with changing temperature. Preferred...

Exploring the effects of invasion on plant morphology of purple loosestrife (Lythrum salicaria)

Alexander Krohn, Caroline DeVan, Lizz Waring & Liz Shea
This dataset is for use in the CURE titled Effects of Invasion on Plant Morphology of Purple Loosestrife (Lythrum salicaria). The dataset is meant to be used as a practice, or ready-to-use dataset for instructors so that all instructors can start from the same point with the same data. If you would like to download additional data, or use a species other than L. salicaria, please visit the CUREnet website and download the Data Download...

Fumigant use on California strawberry fields, 2004-2013

Julie Guthman
This dataset contains an analysis of chemical fumigant usage for nine major strawberry producing counties in California from 2004 to 2013. Five counties are production counties; four are nursery counties. Raw data on all pesticide applications on a county basis was collected from California's Pesticide Use Reporting System and filtered by pesticide category (fumigant) and commodity (strawberry). These data are geo-coded by Township-Range-Section. The data set also contains pivot tables and charts that show trend...

Ant-scale mutualism increases scale infestation, decreases folivory, and disrupts biological control in restored tropical forests

Andy Kulikowski
Ant-hemipteran mutualisms can have positive and negative effects on host plants depending on the level of hemipteran infestation and plant protection conferred by ants against folivory. Differential effects of such mutualisms on plant survival are well documented in undisturbed and ant-invaded systems, but few have explored how anthropogenic disturbance affects interactions between hemipterans and native ant species and what the consequences may be for recovering ecosystems. Within a fragmented landscape in Costa Rica, restored tropical...

Data from: Krill hotspot formation and phenology in the California Current Ecosystem

Jerome Fiechter
In the California Current Ecosystem (CCE), krill represent a key link between primary production and higher trophic level species owing to their central position in the food web and tendency to form dense aggregations. However, the strongly advective circulation associated with coastal upwelling may spatiotemporally decouple the occurrence and persistence of krill hotspots from phytoplankton biomass and nutrient sources. Results from a physical-biological model provide insights into fundamental mechanisms controlling the phenology of krill hotspots...

Photographs from subglacial conduit under Hansbreen, Svalbard

Kenneth D. Mankoff

Chamorro grammar

Sandra Chung

Preliminary design of the MICADO calibration unit

Gabriele Rodeghiero, Jörg-Uwe Pott & Friedrich Müller

A Fresnel propagation analysis for SPEED (Segmented Pupil Experiment for Exoplanet Detection)

Mathilde Beaulieu, Lyu Abe, Patrice Martinez, Carole Gouvret, Frantz Martinache, Oliver Preis, Julien Dejonghe & Farrokh Vakili

Wavefront control simulations for the Giant Magellan Telescope: Field-dependent segment piston control

Fernando Quiros-Pacheco, Rod Conan, Brian McLeod, Ben Irarrazaval & Antonin Bouchez

Multi-conjugate Adaptive Optics at Big Bear Solar Observatory

Dirk Schmidt, Nicolas Gorceix, Xianyu Zhang, Jose Marino, Phil Goode, Thomas Rimmele & Thomas Berkefeld

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