Publications by authors named "Michael Karcher"

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Connecting in a Disconnected World: Tools for Health Professionals to Assess and Expand Adolescent Patients' Connectedness and Webs of Support.
Michael J Karcher, Jonathan F Zaff

Am J Lifestyle Med· May 2025

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Finding high posterior density phylogenies by systematically extending a directed acyclic graph.
Chris Jennings-Shaffer, David H Rich, Matthew Macaulay, Michael D Karcher, Tanvi Ganapathy

Algorithms Mol Biol· February 2025

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Finding high posterior density phylogenies by systematically extending a directed acyclic graph.
Chris Jennings-Shaffer, David H Rich, Matthew Macaulay, Michael D Karcher, Tanvi Ganapathy

ArXiv· November 2024

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Variational Supertrees for Bayesian Phylogenetics.
Michael D Karcher, Cheng Zhang, Frederic A Matsen

Bull Math Biol· August 2024

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How Trustworthy Is Your Tree? Bayesian Phylogenetic Effective Sample Size Through the Lens of Monte Carlo Error.
Andrew Magee, Michael Karcher, Frederick A Matsen, Volodymyr M Minin

Bayesian Anal· June 2024

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Pathways by which case managers' match support influences youth mentoring outcomes: Testing the systemic model of youth mentoring.
Michael J Karcher, Daniel A Sass, Carla Herrera, David L DuBois, Janet Heubach

J Community Psychol· November 2023

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Shine a light: Under-ice light and its ecological implications in a changing Arctic Ocean.
Giulia Castellani, Gaëlle Veyssière, Michael Karcher, Julienne Stroeve, S Neil Banas

Ambio· February 2022

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Estimating effective population size changes from preferentially sampled genetic sequences.
Michael D Karcher, Luiz Max Carvalho, Marc A Suchard, Gytis Dudas, Vladimir N Minin

PLoS Comput Biol· October 2020

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Arctic Climate Change, Economy and Society (ACCESS): Integrated perspectives.
Anne-Sophie Crépin, Michael Karcher, Jean-Claude Gascard

Ambio· December 2017

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Future sea ice conditions and weather forecasts in the Arctic: Implications for Arctic shipping.
Jean-Claude Gascard, Kathrin Riemann-Campe, Rüdiger Gerdes, Harald Schyberg, Roger Randriamampianina, Michael Karcher

Ambio· December 2017

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phylodyn: an R package for phylodynamic simulation and inference.
Michael D Karcher, Julia A Palacios, Shiwei Lan, Vladimir N Minin

Mol Ecol Resour· January 2017

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Quantifying and Mitigating the Effect of Preferential Sampling on Phylodynamic Inference.
Michael D Karcher, Julia A Palacios, Trevor Bedford, Marc A Suchard, Vladimir N Minin

PLoS Comput Biol· March 2016

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Arctic pathways of Pacific Water: Arctic Ocean Model Intercomparison experiments.
Yevgeny Aksenov, Michael Karcher, Andrey Proshutinsky, Rüdiger Gerdes, Beverly de Cuevas

J Geophys Res Oceans· January 2016

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An efficient Bayesian inference framework for coalescent-based nonparametric phylodynamics.
Shiwei Lan, Julia A Palacios, Michael Karcher, Vladimir N Minin, Babak Shahbaba

Bioinformatics· October 2015

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The field of youth mentoring.
Michael J Karcher, Michael J Nakkula

New Dir Youth Dev· June 2012

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Youth mentoring with a balanced focus, shared purpose, and collaborative interactions.
Michael J Karcher, Michael J Nakkula

New Dir Youth Dev· June 2012

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"I dunno, what do you wanna do?": testing a framework to guide mentor training and activity selection.
Michael J Karcher, Carla Herrera, Keoki Hansen

New Dir Youth Dev· June 2012

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On the potential for climate change impacts on marine anthropogenic radioactivity in the Arctic regions.
Michael Karcher, Ingo Harms, William J F Standring, Mark Dowdall, Per Strand

Mar Pollut Bull· August 2010

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A multicultural assessment of adolescent connectedness: testing measurement invariance across gender and ethnicity.
Michael J Karcher, Daniel Sass

J Couns Psychol· July 2010

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The study of mentoring in the learning environment (SMILE): a randomized evaluation of the effectiveness of school-based mentoring.
Michael J Karcher

Prev Sci· June 2008

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Optimisation of sampling for the temporal monitoring of technetium-99 in the Arctic marine environment.
Mark Dowdall, Sebastian Gerland, Michael Karcher, Justin P Gwynn, Anne Liv Rudjord

J Environ Radioact· March 2006

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Developmental mentoring match characteristics: correspondence between mentors' and mentees' assessments of relationship quality.
Michael J Karcher, Michael J Nakkula, John Harris

J Prim Prev· March 2005

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How connectedness contributes to experimental smoking among rural youth: developmental and ecological analyses.
Michael J Karcher, Laurel Finn

J Prim Prev· January 2005

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The dispersion of 99Tc in the Nordic Seas and the Arctic Ocean: a comparison of model results and observations.
Michael J Karcher, Sebastian Gerland, Ingo H Harms, Mikhail Iosjpe, Hilde E Heldal

J Environ Radioact· September 2004

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