scholarly journals Canadian Association of Neuropathologists L’Association Canadienne des Neuropathologistes

2021 ◽  
Vol 48 (s1) ◽  
pp. S1-S1
Keyword(s):  
Annual Meeting ◽  
Digital Pathology ◽  
Academic Program ◽  
Aging Brain ◽  
Canadian Association ◽  
Staging Systems ◽  
Autopsy Diagnosis ◽  
Local Organizer ◽  
The Times ◽  
Lewy Body Diseases

The Canadian Association of Neuropathologist – L’ Association Canadienne de Neuropathologistes (CANP-ACNP) held their 59th annual meeting at the Delta Kingston Waterfront from October 23rd to 26th, 2019, under the leadership of Dr. Peter Gould, President of the CANP-ACNP, Dr. Julia Keith, Secretary Treasurer of the CANP-ACNP, and Dr. John Rossiter, local organizer. The annual banquet was held at River Mill Restaurant in Kingston.The academic program comprised 14 Abstracts, 14 unknown cases, a Symposium on Neurodegenerative Neuropathology, and a Neuropathology Practice lecture by Dr. Gerard Jansen entitled CJD, CJD Surveillance, and Occupational Risk. Can worms ever be re-canned? The interactive forum on Neuropathology Practice was moderated by Dr. Gould and Dr. Keith and focused on safety around autopsy diagnosis of CJD, the Neuropathology workforce analysis in Canada 2019 presented by Dr. Patrick Shannon, and accreditation of neuropathology laboratories in Canada. Digital pathology images from the 14 unknown cases are available for viewing online (www.canp.ca) thanks to the CANP webmaster Dr. Jason Karamchandani.The Presidential Symposium 2019 on Neurodegenerative Neuropathology featured the Jerry Olszewski Lecture given by Dr. Douglas Munoz on Using eye tracking to identify behavioural biomarkers of neurodegeneration, the David Robertson lecture given by Dr. Tom Beach on Staging systems for Lewy body diseases, and the Gordon Mathieson lecture given by Dr. Ian Mackenzie on C9orf72: FTD, ALS and beyond. The program was completed Dr. Gabor Kovacs’ presentation on Tau pathologies in the aging brain and Dr. Carmela Tartaglia’s presentation on Dementia; the times they are a changing.The award for best clinical science presentation by a trainee (Dr. Mary Tom Award) in 2019 went to Dr. Suzy Kosteniuk (Supervisor Dr. Lothar Resch), and the award for best basic science presentation by a trainee (Dr. Morrison H. Finlayson Award) was won by Hoang D. Nguyen (Supervisor Dr. Maxime Richer).The following abstracts were presented at the 59th annual meeting of the Canadian Association of Neuropathologists – Association Candienne des Neuropathologistes (CANP-ACNP) in October 2019.

scholarly journals Address from the local organizer

1987 ◽  
Vol 82 (suppl 2) ◽  
pp. II-II
Author(s):  
Wilson Savino
Keyword(s):  
Local Organizer

scholarly journals Programmable pattern formation in cellular systems with local signaling

2021 ◽  
Author(s):  
Tiago Ramalho ◽  
Stephan Kremser ◽  
Hao Wu ◽  
Ulrich Gerland
Keyword(s):  
Pattern Formation ◽  
Internal State ◽  
Cellular Systems ◽  
Small Subset ◽  
Target Pattern ◽  
Alternative Scheme ◽  
Local Organizer ◽  
Common Principle ◽  
Pattern Forming ◽  
Update Rules

Diverse complex systems, ranging from developing embryos to systems of locally communicating agents, display an apparent capability of "programmable" pattern formation: They reproducibly form a target pattern, but this target can be readily changed. A distinguishing feature of such systems, as compared to simpler physical pattern forming systems, is that their subunits are capable of information processing. Here, we explore schemes for programmable pattern formation within a theoretical framework, in which subunits process discrete local signals to update their internal state according to logical rules. We study systems with different update rules, different topologies, and different control schemes, to assess their ability to perform programmable pattern formation and their susceptibility to errors. Only a small subset of systems permits local organizer cells to dictate any target pattern. These systems follow a common principle, whereby a temporal pattern is transcribed into a spatial pattern, reminiscent of the clock-and-wavefront mechanism underlying vertebrate somitogenesis. An alternative scheme employing several different rules can only form a fraction of patterns but is robust with respect to the timing of organizer cell inputs. Our results establish a basis for the design of synthetic systems, and for more detailed models of programmable pattern formation closer to real systems.

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