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Compiling collaborators for NSF Collaborators and Other Affiliations (COA) form

Authors: Beth Cimini, John Kitchin, Andrew Rosen, and Anne Carpenter What is the COA form? NSF requires you to report all “Co-authors on any book, article, report, abstract or paper with collaboration in the last 48 months” in Table 4 of the COA form, for certain people (e.g. PI, Co-PI, Senior/Key...

Thinking like an image analyst, Part II: Removing bright debris from analysis

Pearl V. Ryder In the first post of this series, I gave an overview of this project and explained how I imported the data into CellProfiler. If you’d like to follow along in CellProfiler, the pipeline and images for this project are available here. Now that the images have been imported, I could...

UnmixColors Modules Tutorial

Mario Costa Cruz If you have color images stained with light-absorbing dyes, the UnmixColors module might be able to separate the dyes into separate channels so that they can be analyzed separately. Separating the dyes into channels can be a difficult task with traditional methods such as split...

Customizing a Model for Fiber Segmentation, Part 2: Creating an ilastik Model

Melissa Gillis In the first part of this blogpost I described some of the tools I tried to accurately segment collagen IV fibers including, CellProfiler, Cellpose, and Piximi. Unfortunately none of these methods were successful in accurately segmenting the fibers so I decided to develop a machine...

How to export tiles of large histology images in QuPath

Rebecca Senft With slide scanners and other automated, high-throughput microscopes becoming more and more common, it’s important to understand how to work with the large image files they produce. Whole slide file formats (e.g., .mrxs, .svslide, .svs, .vms) are often massive when uncompressed (>40 GB...

Help! Interpreting image-based profiles

Fernanda Garcia-Fossa & Anne Carpenter In a typical quantitative microscopy experiment, biologists choose fluorescent biomarkers and measure particular features (that is “metrics”) that they hypothesize will be perturbed in their samples. But in image-based profiling, you aim to let the cells tell...

A Quantitative Path to Pathology

Guest Author This post was written by a guest author, Kun-Hsing Yu, who can be reached at Kun-Hsing_Yu@hms.harvard.edu. Lung cancer causes more than 1.4 million deaths per year. To diagnose lung cancer, pathologists prepare microscopic slides from surgical or biopsy samples, stain them with...

Screening a million compounds for the price of a few thousand?

Anne Carpenter Biologists are coming up with more and more complex physiologically-relevant assay systems and scaling them up for screens. From co-cultured cells to C. elegans to 3D organoids and tumor spheroids, these assay systems can be challenging, expensive, lower-throughput, and/or rely on...