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"Morris, S. Brent"
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The complete idiot's guide to freemasonry
Recent novels and films about the ancient society of Freemasons have increased interest and raised a lot of misconceptions about this mysterious fraternity. This guide gives you everything you need to know, from its beginnings to how it is organized and operates today.
Book
S. Brent Morris
I have one of the greatest math jobs possible: lots of good problems, management that's really interested in their solutions, and plenty of opportunities for professional growth. It's ironic that I didn't want to work at the National Security Agency (NSA) when I started, and I began my career here looking for a \"real\" math job.
NSA is the largest employer of mathematicians in the US and is part of the \"intelligence community,\" with the mission of solving cryptologic problems. I can't talk about the specifics of much of what I've worked on, but I can tell you something about my career.
After receiving my PhD from Duke, I started in NSA's Cryptologic Mathematician Program (CMP). The CMP is just one of many ways mathematicians are integrated into the NSA work force. Over three years I had tours in five different offices, each giving me a different perspective on NSA's mission. During this period I took NSA courses in cryptanalysis, statistics, number theory, and other advanced math topics. At the same time NSA sent me to school part-time at Johns Hopkins, where I eventually earned an MS in computer science.
Magic and mathematics have always interested me-I even wrote my dissertation on permutation groups generated by card shuffling. During my tours at NSA offices, I learned the perfect shuffle permutation was used to design interconnection networks. With my interest in magic and my research in the mathematics of card shuffling, I studied these circuits with gusto.
Book Chapter
Freemasonry Among Horsey Men
In return for their monopoly power, especially including pricing, the guild guaranteed quality and provided a training or apprentice program, albeit tightly controlled, for those wanting to enter a profession. The earliest known reference to the Mason Word is in the 1697 book, A Relation of Proceedings Concerning the Affairs of the Kirk of Scotland, where knowledge of it is used to asperse the character of the Earl of Rothes.? \"3 This ability to summon another invisibly from a distance-even from the top of a steeple-was as easily explained by witchcraft as by a clever substitute for a dues card.
Magazine Article
Freemasonry on Both Sides of the Atlantic: Essays concerning the Craft in the British Isles, Europe, the United States, and Mexico
Chabot reviews Freemasonry on Both Sides of the Atlantic: Essays Concerning the Craft in the British Isles, Europe, the United States, and Mexico edited by R. William Weisberger, Wallace McLeod, and S. Brent Morris.
Book Review
Single-cell mapping of lineage and identity in direct reprogramming
Direct lineage reprogramming involves the conversion of cellular identity. Single-cell technologies are useful for deconstructing the considerable heterogeneity that emerges during lineage conversion. However, lineage relationships are typically lost during cell processing, complicating trajectory reconstruction. Here we present ‘CellTagging’, a combinatorial cell-indexing methodology that enables parallel capture of clonal history and cell identity, in which sequential rounds of cell labelling enable the construction of multi-level lineage trees. CellTagging and longitudinal tracking of fibroblast to induced endoderm progenitor reprogramming reveals two distinct trajectories: one leading to successfully reprogrammed cells, and one leading to a ‘dead-end’ state, paths determined in the earliest stages of lineage conversion. We find that expression of a putative methyltransferase,
Mettl7a1
, is associated with the successful reprogramming trajectory; adding Mettl7a1 to the reprogramming cocktail increases the yield of induced endoderm progenitors. Together, these results demonstrate the utility of our lineage-tracing method for revealing the dynamics of direct reprogramming.
Combinatorial tagging of single cells using expressed DNA barcodes, delivered by a lentiviral vector, is used to track individual cells and reconstruct their lineages and trajectories during cell fate reprogramming.
Journal Article