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Daniel Ar

@ar1ad.bsky.social

Bioinformatician | Physicist

121 Followers  |  344 Following  |  4 Posts  |  Joined: 30.04.2024  |  1.8

Latest posts by ar1ad.bsky.social on Bluesky


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Simons Graduate Fellowships in Ecology and Evolution The purpose of these awards is to provide support for students entering U.S.-based Ph.D. programs with a plan to perform research in ecology and evolution. While we will consider all projects in ecolo...

Check out this brand new fellowship from the Simonโ€™s Foundation in Ecology and Evolution. Incoming grad students this year are eligible to apply. No citizenship restrictions. www.simonsfoundation.org/grant/simons...

02.06.2025 17:16 โ€” ๐Ÿ‘ 56    ๐Ÿ” 71    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 1

Itai Yanai is now putting together with Oded Rechavi and others the Woodstock of Biology 2 & Night Science conference to integrate some of Itai's ideas into a scientific meeting. #theconferencetoendallconferences

More info & registration here: woodstock.img.cas.cz

30.03.2025 21:15 โ€” ๐Ÿ‘ 29    ๐Ÿ” 7    ๐Ÿ’ฌ 2    ๐Ÿ“Œ 1
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Aneuploidy is the leading cause of pregnancy loss. In work led by @saracarioscia.bsky.social and @aabiddanda.bsky.social, we reanalyzed genetic testing data from 139,416 IVF embryos to discover variants associated with recombination phenotypes and aneuploidy risk. www.medrxiv.org/content/10.1...

07.04.2025 14:00 โ€” ๐Ÿ‘ 89    ๐Ÿ” 38    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 3
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How a PhD studentโ€™s lab size affects their chance of future academic success Trainees in big research groups tend to go on to greater academic success than their small-group counterparts โ€” but are more likely to quit academia altogether.

A study found junior scientists in large research groups tend to achieve higher academic success but are more likely to quit academia than those in smaller groups.

Successful big-group researchers published more first-author papers with their mentors, via @nature.com

18.03.2025 18:11 โ€” ๐Ÿ‘ 4    ๐Ÿ” 1    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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Quite an essay on the basis of cancer entitled "The End of the Genetic Paradigm of Cancer" @plosbiology.org arguing against the primacy of somatic mutations (traditional model) and cells, invoking gene regulatory networks and tissue
journals.plos.org/plosbiology/...

18.03.2025 18:25 โ€” ๐Ÿ‘ 218    ๐Ÿ” 64    ๐Ÿ’ฌ 5    ๐Ÿ“Œ 13
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Pi, Anyone? A Celebration Of Math And Whatโ€™s New Mathematician Dr. Steven Strogatz breaks down the history of the math concept and brings it full circle to recent science.

On Science Friday @scifri.bsky.social today, I had the pleasure of chatting with Ira Flatow @heyira.bsky.social about pi, what AI means for the future of math, and whether Einstein was a good math student. Hope you enjoy it! www.sciencefriday.com/segments/pi-...

14.03.2025 19:41 โ€” ๐Ÿ‘ 22    ๐Ÿ” 3    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Congratulations to the new fellows.

11.03.2025 09:22 โ€” ๐Ÿ‘ 3    ๐Ÿ” 3    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

I don't write notes in "presenter mode" when I give talks but many use these and that's ok and can calm you down and keep you accurate. However, this often makes the delivery less natural. I wonder why meetings don't have an option to upload presenter notes to a Teleprompter.

11.03.2025 09:32 โ€” ๐Ÿ‘ 16    ๐Ÿ” 1    ๐Ÿ’ฌ 5    ๐Ÿ“Œ 0
A set of three wall shelf sets, in the form of boxplots

A set of three wall shelf sets, in the form of boxplots

๐Ÿ“ŠLooking to re-decorate your #dataviz office?
You need Boxplot Shelves! |----[ ]--|

05.03.2025 03:13 โ€” ๐Ÿ‘ 233    ๐Ÿ” 43    ๐Ÿ’ฌ 5    ๐Ÿ“Œ 5
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Today's episode of the Night Science Podcast! Victor Ambros is a 2024 Nobel Prize winner for discovering microRNAs. He talks with us about curiosity-driven research & how a scientistโ€™s unique perspective leads to discoveries others might miss.
open.spotify.com/episode/7jCM... @vambros.bsky.social

10.03.2025 15:01 โ€” ๐Ÿ‘ 19    ๐Ÿ” 5    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
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Genetic predictions of eye and hair colour in the Danish population Genetic predictions of eye and hair colour are prominent examples of forensic DNA phenotyping that can help resolve criminal cases. The advent of high-throughput genotyping technologies in forensic ge...

www.fsigenetics.com/article/S187...

10.03.2025 05:36 โ€” ๐Ÿ‘ 5    ๐Ÿ” 1    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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Happy to share a new preprint, to which I provided a minor contribution.

Using genetic data from ~100k human embryos, we found ~1k that were haploid or triploid.

We describe a thorough characterization of these embryos, with many interesting findings ๐Ÿงต

1/9

www.biorxiv.org/content/10.1...

18.02.2025 12:05 โ€” ๐Ÿ‘ 17    ๐Ÿ” 7    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
https://www.biorxiv.org/content/10.1101/2025.02.14.638102v1?ct=

What an amazing discovery from Scott Kennedy's lab! A new splicing system that recognizes transposons and removes them from mRNAs! t.co/3p3wyxkYXX

18.02.2025 14:51 โ€” ๐Ÿ‘ 103    ๐Ÿ” 47    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 4

New year, new beginnings! ๐ŸŽ‰

The Aviram Lab will officially open its doors on March 1st @mskcancercenter.bsky.social!

Weโ€™ll study microbial immune systems and their connection to fundamental cellular processes like #RNA transcription and #DNA integrity.

#NewPI #AcademicSky #WomenInSTEM
(1/2)

02.01.2025 16:01 โ€” ๐Ÿ‘ 69    ๐Ÿ” 18    ๐Ÿ’ฌ 7    ๐Ÿ“Œ 1
Schematic describing the approximate Bayesian computation approach for inferring rates of meiotic and mitotic error. For each simulation trial, probabilities of meiotic and mitotic error (ฮธ) are each randomly drawn from a uniform distribution ranging from 0 to 1. These values are used to determine the number of cells that will be aneuploid (represented as dark blue in the schematic) versus normal disomic (light blue) in the final embryo. This number is converted to a proportion and then used as input to the Tessera package. For each combination of error parameters (1,000 chosen) and each of three fixed values for dispersal (0, 0.5, 1), 1,000 embryos are generated and biopsied. For each embryo, 8 mitotic divisions are simulated (producing a total of 256 cells), and one 5-cell biopsy is obtained. Using the adaptive method described by Lenormand et al., ABC selects the set of simulations that produce summary statistics (proportions of euploid, mosaic, and aneuploid biopsies) that best reflect the observed biopsy data. The error rates that produced the selected simulations are used to approximate the posterior distributions of these parameters.

Schematic describing the approximate Bayesian computation approach for inferring rates of meiotic and mitotic error. For each simulation trial, probabilities of meiotic and mitotic error (ฮธ) are each randomly drawn from a uniform distribution ranging from 0 to 1. These values are used to determine the number of cells that will be aneuploid (represented as dark blue in the schematic) versus normal disomic (light blue) in the final embryo. This number is converted to a proportion and then used as input to the Tessera package. For each combination of error parameters (1,000 chosen) and each of three fixed values for dispersal (0, 0.5, 1), 1,000 embryos are generated and biopsied. For each embryo, 8 mitotic divisions are simulated (producing a total of 256 cells), and one 5-cell biopsy is obtained. Using the adaptive method described by Lenormand et al., ABC selects the set of simulations that produce summary statistics (proportions of euploid, mosaic, and aneuploid biopsies) that best reflect the observed biopsy data. The error rates that produced the selected simulations are used to approximate the posterior distributions of these parameters.

Aneuploidy is the leading cause of pregnancy loss. In our latest study (www.biorxiv.org/content/10.1...) led by undergrad Angela Yang, we used a simulation framework to infer rates of both meiotic (39-43%) and mitotic errors (1-3% per division) that best explain data from human IVF embryo biopsies.

09.12.2024 20:40 โ€” ๐Ÿ‘ 12    ๐Ÿ” 9    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
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Biology of Genomes Cold Spring Harbor Laboratory Meetings & Courses -- a private, non-profit institution with research programs in cancer, neuroscience, plant biology, genomics, bioinformatics.

Biology of Genomes 2025 is coming up:
- meeting dates: May 6 - 10, 2025
- abstract deadline: Feb 14, 2025
We hope to see you there for another great meeting with a fantastic speaker lineup!

meetings.cshl.edu/meetings.asp...

03.12.2024 19:21 โ€” ๐Ÿ‘ 67    ๐Ÿ” 34    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 2
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I gave my DNA to tracking company - then it vanished Customers of Atlas Biomed are angry and worried about what's happened to the highly sensitive data they shared.

With Genuity/GMI in Ireland in the rear view mirror, this story current and 23&Me looming, we have to start talking about legislative solutions. When companies go out of business, what should happen with your private data?

www.bbc.com/news/article...

09.11.2024 18:54 โ€” ๐Ÿ‘ 7    ๐Ÿ” 4    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

Academia never tells its people 'do something creative and take a risk'. Instead they say:
1. To students: don't be too ambitious
2. To postdocs: work on projects with a high feasibility
3. To assistant professors: play it safe, get tenure
4. To professors: don't lose funding, go with the paradigm.

16.11.2024 20:58 โ€” ๐Ÿ‘ 47    ๐Ÿ” 6    ๐Ÿ’ฌ 3    ๐Ÿ“Œ 3

who knew it would be easier to get everyone to switch social media platforms than getting them to use hg38

14.11.2024 18:45 โ€” ๐Ÿ‘ 254    ๐Ÿ” 62    ๐Ÿ’ฌ 15    ๐Ÿ“Œ 13
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Algorithmic monoculture and social welfare | PNAS As algorithms are increasingly applied to screen applicants for high-stakes decisions in employment, lending, and other domains, concerns have been...

Tonight's reading is from Jon Kleinberg and Manish Raghavan.

Elegant mathematical modeling to look at what happens when two decision-makers use the same more accurate algorithm instead of different less-accurate ones.

tl;dr โ€” surprisingly, almost paradoxically, bad things.

09.11.2024 07:36 โ€” ๐Ÿ‘ 141    ๐Ÿ” 45    ๐Ÿ’ฌ 5    ๐Ÿ“Œ 7

In all instances, Israel acted in self-defense against terrorist organizations like Hezbollah and Fatah, which launched attacks from Lebanon. These operations were responses to threats aimed at Israeli civilians. Israel's goal has always been to neutralize these groups, not harm Lebanon itself.

01.10.2024 02:11 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Any military action is aimed at defending civilians from terrorist groups that have repeatedly attacked Israel. The true tragedy is that terrorist organizations like Hezbollah operate within civilian areas, putting innocent lives at risk.

#PeaceForAll #EndTerrorism #DefendInnocents

01.10.2024 01:40 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

This accusation is factually false. Israel has not conducted carpet bombing in Beirut or anywhere in Lebanon. Such serious claims should always be backed by credible evidence rather than misinformation. Letโ€™s focus on the truth and avoid spreading unfounded allegations.
#FactCheck #Misinformation

01.10.2024 01:09 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Hello world! ๐Ÿ˜Š

23.05.2024 20:46 โ€” ๐Ÿ‘ 4    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

@ar1ad is following 20 prominent accounts