Keivrijdag
Everything one needs to know about the Keivrijdag.
- What: Keivrijdag: informal scientific discussion, see https://github.com/keivrijdag/keivrijdag
- Where: the online Discord Keivrijdag server, get yourself invited by
richelbilderbeek#9002or other colleagues - When: see dates below, at each date from 20:00 onwards
- Topic: see below
Future discussions
| Date | Topic | Location |
|---|---|---|
| 2023-07-07 | Predator-prey dynamics of hare and lynx/leopard/cheetah | Cafe De Minnaar |
| 2021-04-02 | [Starts at 19:00] Removing false positives obtained by machine learning techniques when your data is white noise | Keivrijdag Discord server, https://discord.gg/PzsR6dF |
Discussed
Third Era, second year
| Date | Topic | Location |
|---|---|---|
| 2020-04-17 | [Extra Keivrijdag] Anecdotal evidence that Humo sapiens men do not always mate with people they classify as 'me mates' | Skype |
| 2020-04-24 | Flevoland a volcanic island after all? Influence of the Zuidwal volcano in Dutch land formation | https://discord.gg/PzsR6dF |
| 2020-05-08 | The effect of memorizing the digits of pi in attracting non- and conspecific mates | https://discord.gg/PzsR6dF |
| 2020-05-22 | Evidence for strong selection on transmembrane helices in hydrophilic cell membranes | https://discord.gg/PzsR6dF |
| 2020-06-05 | The effect of IST1+ structures on diversification rates | https://discord.gg/PzsR6dF |
| 2020-06-19 | Evolution of unemployed and homeless people that drink beer on the streets | If dry: grassfield between Blauwborg and Linnaeusborg or if rainy: underneath the Linnaeusborg bridge |
| 2020-09-11 | Spontaneous speciation from spider-mites to thrips | https://discord.gg/PzsR6dF |
| 2020-11-06 | The effect of online meeting platform on the spread of STDs | Keivrijdag Discord server, https://discord.gg/PzsR6dF |
| 2021-01-11 | [unofficial Giacomonday] | Discord |
| Date | Topic | Keivrijdag/Groningen location | Stirling/Creagfriday location |
|---|---|---|---|
| 2019-11-08 | The many good reasons to classify microplastics as sessile bacteria without DNA | De Prins, Zwanestraat 3 | [not yet] |
| 2019-11-22 | Effects on biodiversity when painting black holes orange | De Sleutel, Noorderhaven 72 | [not yet] |
| 2019-12-06 | Phenotypic plasticity in unobservable organisms | De Graanrepubliek, Gedempte Kattendiep 11 | [not yet] |
| 2019-12-20 | The evolution of the evolution of the evolution of evolvability | Bar de Rits, Pottebakkersrijge 2 | [not yet] |
| 2020-01-03 | The need of a mutator strain of Aldabrachelys gigantea to be used as a model species in evolutionary biology | The Crown, Gedempte Zuiderdiep 2 | [not yet] |
| 2020-01-10 | [Extra Keivrijdag] The effect of mainland extinction on island size | De Minnaar, Kleine Rozenstraat 64, deminnaar.nl | [not yet] |
| 2020-01-17 | Application of island biogeography models on islands in marine lakes | Cafe De Molleboon, Nieuwe Ebbingestraat 117 | The Curly Coo Bar, 51 Barnton St |
| 2020-01-31 | Causes of the lack of mature pine forests on reservoir land-bridge islands | De Kale Jonker, Gedempte Zuiderdiep 148, http://www.cafekalejonker.nl | Nicky-Tams, 29 Baker Street, https://www.nickytams.com |
| 2020-02-07 | [Extra Keivrijdag] Evidence for diversity-dependent speciation in wild Haggis | De Minnaar, Kleine Rozenstraat 64, deminnaar.nl | Mo Chreach! |
| 2020-02-14 | The effect of tattoos of prime numbers in attracting non-conspecific mates | Bar de Rits, Pottebakkersrijge 2 | Mo Chreach! |
| 2020-02-28 | The many proofs the universe would be unstable would mature pine forests not be green | De Valstrik. Blekerstraat 26a | Mo creag! |
| 2020-03-13 | No official Keivrijdag | With less than 99 beloved ones 😁 | Mo creag! |
| 2020-03-27 | Cancelled | NA |
| Date | Topic | Location |
|---|---|---|
| 2019-05-24 | (first KeiVrijdag) Applications of the DAISIE model on the sub-oceanic island of Flevoland | De Toeter, Turfsingel 6 |
| 2019-06-07 | [a forgotten Keivrijdag] | [no suggestion] |
| 2019-06-21 | Can we exclude genetics in explaining altostratus behavior? Can the absence of emergent properties in its flocking behavior be explained completely by phenotypic plasticity? | Merleyn, Meeuwerderweg 121 |
| 2019-07-05 | Allopatric speciation in Patrae (but not due to mountain formation) | Bij Kimmie (formerly: Aan De Amstel), Veemarktstraat 101 (close to Oosterpoort) |
| 2019-07-19 | The use of English and French Pokemon in measuring name-dependent speciation rates | Kroeg van Klaas, Oosterweg 26 |
| 2019-08-02 | Evidence from island biogeography models for Flevoland being a volcanic island | De Pintelier, Kleine Kromme Elleboog 9 |
| 2019-08-16 | Biological relevance of speciation models in which time is diversity-dependent | Noorderzon, Kruissingel |
| 2019-08-30 | Phylogenetic speciation models that use pi in their likelihood equations | Die 2, Mauritsdwarsstraat 29, https://www.openstreetmap.org/node/2748531453 |
| 2019-09-13 | Biological relevance of protracted diversity-and-time-and-trait-dependent multiple-birth speciation models with imaginary parameters | De Minnaar, Kleine Rozenstraat 64, https://deminnaar.nl |
| 2019-09-27 | Biological relevance of divisions by zero | Mr Mofongo's, Oude Boteringestraat 26 |
| 2019-10-11 | The reaction of flogs to valkan drones | De Bres, Grachtstraat 71 |
| 2019-10-25 | the effect of biodifurstetie of difrend kinds of islands on the evelution on islands | Sportsbar, Blauwborgje 16 |
| 2019-11-01 | [Extra Keivrijdag] The evolutionary consequences of naming a sterilized pets after a phylogenetic inference model | @GiorgioBoccarella's place |
| Date | Topic |
|---|---|
| 2019-02-25 | (from 17:00!)The Giacomonday topic with the highest impact factor judged by altmetrics |
| 2019-03-11 | The use of introgression to prove Foraminifera and Ovis aries are non-sister species |
| 2019-03-25 | Emergent properties of multiple adjacent vacua |
| 2019-04-08 | Does the absence of division of labor in Higgs bosons prove they aren't social insects? |
| 2019-04-22 | The effect of Easter on Giacomondays (spoiler: none!) |
| 2019-05-06 | (last Giacomonday) Dominance hierarchies in photons |
Third Era, first year
| Date | Topic |
|---|---|
| 2018-02-19 | The effect of quantum physics at macro-evolutionary scale |
| 2018-02-26 | The effect of intergalactic dark matter at micro-evolutionary scales |
| 2018-03-05 | Emergent properties in single-rule single-agent systems in featureless donut-shaped worlds |
| 2018-03-12 | The effect of black holes on the retinal system of bottom-dwelling ciclids in Lake Victoria in winter when it is cloudy |
| 2018-03-19 | [An unofficial Giacomonday] |
| 2018-03-26 | The effect of alternative universes on Darwinian sexual selection on costless and honest traits on species in those universes |
| 2018-04-09 | Practice of evolutionary medicine by Mesoamericans in Teotihuacan at March 14th 159 AD |
| 2018-04-23 | in silico modeling of perfect vacua |
| 2018-04-30 | Evolutionary stable strategies for bachelor students in a game of heads or tails |
| 2018-05-07 | The effect of waterbody names on mitochondrial cAMP levels in flagellated microbenthos |
| 2018-05-14 | (extra) Approaches to Macroevolution: 3. General Variation and Origin, Overarching Issues, General Acknowledgements |
| 2018-05-21 | The effect of Pentecost on Giacomondays (spoiler: none!) |
| 2018-05-28 | The effect of typo's in email sent early in the morning on biological simulations running on the same computer |
| 2018-06-04 | The amount of pre-emptive niche filling by absent species |
| 2018-06-11 | Extra Giacomonday. The effect of having no topic on Giacomondays |
| 2018-06-18 | Origin of life: a virgo? The effect of the zodiac on early replicator formation |
| 2018-07-02 | The effect of eddies in vacua in Italian natural reserves |
| 2018-07-16 | The absence of host-parasite interactions in My Little Pony, excluding gray area cases |
| 2018-07-30 | Host-parasite relations in hosts confined to the Artic and parasites confined to the Antarctic region |
| 2018-08-13 | The effect of time travelling haplorhines on yesterday's unobservable behavioral dynamics |
| 2018-08-27 | Survival of the fittest? The effect Charles Darwin had on the Chinese Ming dynasty |
| 2018-09-10 | Sexual ornaments producing electromagnetic radiation of wavelengths between 41 and 43 femtometers |
| 2018-09-17 | (at 21:00!) The effect of a one-hour daytime shift on observable circadian behavior of Tardigrada in liquid helium |
| 2018-09-24 | Adaptive radiation in Uranium-235 |
| 2018-10-01 | The effect of Heliconius migrational routes on biodiversity patterns in Mare Imbrium |
| 2018-10-08 | The epidemiological effects of vaccinating viruses against themselves |
| 2018-10-15 | Evidence for the sexy son hypoKeivrijdag in the European pied flycatcher (Ficedula hypoleuca) from observational field studies of virgin females |
| 2018-10-22 | The use of Bayesian statistics on deterministic, non-chaotic and trivally simple systems |
| 2018-11-05 | The delusion of the Division of Labor in ants: no evidence of parlementary or other adminstrative divisions |
| 2018-11-19 | Post-mortem game theory strategies |
| 2018-12-03 | What can agriculture learn from the low FST values in Cybertronian species? |
| 2018-12-17 | Successes in stabilizing road kills in the Caspian tiger (Panthera tigris tigris) in the last decade |
| 2018-12-31 | No Giacomonday |
| 2019-01-14 | Paper-Rock-Scissors dynamics in collections of papers, rocks and scissors |
| 2019-01-21 | [Extra Giacomonday) Correlation between narcissism and throat patch shape (e.g. not in the shape of a penis) in tayra (Eira barbara) |
| 2019-01-28 | Pokemon: ideal system to test diversification models on? |
| 2019-02-11 | The use of island biogeography in explaining low species diversity on the moon |
FAQ
At what time will the topic be discussed?
Discussion starts at 20:00 sharp, until consensus is reached. Sometimes the discussion flares up again later on the evening, but this is discouraged.
I know little about the topic, can I join anyways?
Great care is taken in selecting topics with only a modest amount of literature about it. If a literature search on the topic results in more articles than the Giacoconstant, a more specific topic is picked.
Short as the list of academic papers may be, we do (try to) accept people that may potentially have good reasons not to read up.
I want to contribute a topic
Great! Send a Pull Request, post an Issue or email to @richelbilderbeek.
This will open up the option to suggest a pub. You are encouraged to do so 👍
I only want to suggest a pub!
Bad luck! You need to suggest a topic 🌈
I only want to join for the gezelligheid. Is that OK?
As can be inferred from the list of topics, we do not take science lightly. Sure, we will (try to) be nice to you, but we may be hindered of the idea that we view you as parasitically bathing in our hard-earned wisdom. On the other hand, perhaps we should slow down on being serious all the time.
What was Creagfriday?
Creagfriday was the Keivrijdag in Stirling. See the rich history of these events below.
Why is it called Keivrijdag?
'kei' is Dutch for 'very' and 'vrijdag' is Dutch for Friday. Additionally, 'vrij' is Dutch for 'free' as used in 'freedom' (among others), so it is a very free Friday!
Why was it called Creagfriday?
'creag' is Scottish Gaelic for rock. The 'Kei' in Creagfriday's ancestral event 'Keivrijdag' is a Dutch word for 'rock'.
Is the Keivrijdag related to the KEI week?
No.
The 'kei' in 'kijvrijdag' is Dutch for 'very', where KEI in KEI week is an abbreviation.
There is a 50% chance, however, that in a KEI week's Friday, that that day is also a Keivrijdag. Additionally, there is an approximately 2% chance, that when it is Keivrijdag, it is also KEI week.
What is the picture?
It is a rock.
To be precise, it is one of the two rocks at Spectacle Rock.
'Kei' is a Dutch word for rock.
What is the Giacoconstant?
The Giacoconstant, G, can be calculated as such:
The 'plus one' is to emphasize that we are always willing to read that one extra article.
Don't you think Friday is a bad day to go to a pub?
Yes. Some of the wiser visitors of Keivrijdag thus leave at 22:00.
History
The history of Keivrijdag started with the Giacomonday:
First era: 2014-2015
Giacomonday started in the era in which TECE was a member of COCON. In that era, Richel Bilderbeek and Annelies van Ginkel were the two Party Committee members. During that period, the pub was frequented once a week for six weeks in a row. Then, Giacomo Alciatore, an examplary student went elsewhere. This resulted in Richel being in the pub alone, and Giacomonday (not yet called as such) died a silent death. Also, TECE split from COCON.
Second era: 2016
In the second era, Giacomo visited Groningen for some weeks, and Giacomonday was back! It was then named as such. When Giacomo left, Richel was again the only one persevering in being social, and Giacomonday was put in the freezer.
Third era: 2017-onwards
The TECE group has grown, with some new social members being added. Giacomonday was revived, with Giacomono being absent (he does get the invitation email, though). The Giacomonday got an even more serious character, by adding a scientific topic to be informally discussed.
After 1.25 year of Giacomondays, this event moved to a Friday and was renamed to 'Keivrijdag'. At the Keivrijdag, the pub location varies.
At around November 2019, a Keivrijdag regular, Theo Pannetier, decided to enrich the Scottish culture in Stirling by organising a Keivrijdag there in parallel, where it will be called 'Creagfriday'. Similar to the Giacomonday's first era, the 'Creagfriday' died a silent death at around March 2020.
Due to some pandemic, the Keivrijdag moved online. Halfway April 2020, Pedro Neves organised the first online Keivrijdag. After some online meetings, there was a first meeting in real life, at the grassland at the university campus. After this, the third era ended: the Keivrijdag was yet another victim of the pandemic.