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@Techmeme@techhub.social
2025-08-19 23:40:46

Firecrawl, which offers an open-source web crawler for developers and AI agents, raised a $14.5M Series A led by Nexus Venture Partners (Julie Bort/TechCrunch)
techcrunch.com/2025/08/19/ai-c

AI crawler Firecrawl raises $14.5M, is still looking to hire agents as employees | TechCrunch
Firecrawl nabbed Shopify’s CEO Tobias Lütke as an investor from a gutsy email after they discovered he was using the product.

@netzschleuder@social.skewed.de
2025-07-20 04:00:28

foursquare_global: Foursquare global check-ins (2013)
A bipartite network of users and locations, representing check-in events worldwide on Foursquare, from April 2012 to September 2013. Metadata include country, city name, city type (e.g. national capital), and vender's latitude and longitude.
This network has 3935215 nodes and 22809624 edges.
Tags: Social, Online, Unweighted, Metadata, Timestamps

foursquare_global: Foursquare global check-ins (2013). 3935215 nodes, 22809624 edges. https://networks.skewed.de/net/foursquare_global

foursquare_global — Foursquare global check-ins (2013)
A bipartite network of users and locations, representing check-in events worldwide on Foursquare, from April 2012 to September 2013. Metadata include country, city name, city type (e.g. national capital), and vender's latitude and longitude.

@arXiv_quantph_bot@mastoxiv.page
2025-08-21 10:01:00

A Classification Program for Nonlocality Paradoxes of Three Qubits
Nadish de Silva (Department of Mathematics, Simon Fraser University), Santanil Jana (Department of Mathematics, Simon Fraser University), Ming Yin (Department of Mathematics, Simon Fraser University)
arxiv.org/abs/2508.14673…

A Classification Program for Nonlocality Paradoxes of Three Qubits
Nonlocality is a quintessential signature of nonclassical behaviour and a resource for quantum advantages in communication and computation. The paradoxical correlations witnessed by strong nonlocality undergird the standard probabilistic form of nonlocality and provide optimal advantages in numerous informational tasks. Three-qubit systems are the simplest ones that admit strong nonlocality. Abramsky et al. (TQC, 2017) established the existence of an infinite family of three-qubit paradoxes, …

@funkvolk@mastodon.social
2025-07-21 20:26:27

Guten Abend, ich möchte gerne über Prävention reden.
#Corona #Covid #LongCovid

Alarm-Studie bei Corona: Deutsche Forscher belegen Gedächtnisschäden
Corona kann noch Monate oder Jahre nach einer Infektion Probleme bereiten – auch für die Nervenzellen im Gehirn, haben Heidelberger Forscher nun herausgefunden.

@arXiv_astrophCO_bot@mastoxiv.page
2025-08-20 08:31:00

Field-level Reconstruction from Foreground-Contaminated 21-cm Maps
Shu-Fan Chen, Kai-Feng Chen, Cora Dvorkin
arxiv.org/abs/2508.13265 arxiv…

Field-level Reconstruction from Foreground-Contaminated 21-cm Maps
Current and upcoming 21-cm experiments will soon be able to map 21-cm spatial fluctuations in three dimensions for a wide range of redshifts. However, bright foreground contamination and the nature of radio interferometry create significant challenges, making it difficult to access rich cosmological information from the Fourier modes that lie within the "foreground wedge". In this work, we introduce two approaches aiming to reconstruct the full 21-cm density field, including the missing modes i…

@netzschleuder@social.skewed.de
2025-08-19 14:00:04

foursquare: Foursquare NYC restaurants (2012)
Two bipartite networks of users and restaurant locations in New York City on Foursquare, from 24 October 2011 to 20 February 2012. In one network, an edge denotes a check-in event of a user at a restaurant. In the other, an edge exists if a user left a tip/comment on a restaurant. Metadata include comments.
This network has 6410 nodes and 10377 edges.
Tags: Social, Online, Unweighted, Metadata

foursquare: Foursquare NYC restaurants (2012). 6410 nodes, 10377 edges. https://networks.skewed.de/net/foursquare#NYC_restaurant_tips

foursquare — Foursquare NYC restaurants (2012)
Two bipartite networks of users and restaurant locations in New York City on Foursquare, from 24 October 2011 to 20 February 2012. In one network, an edge denotes a check-in event of a user at a restaurant. In the other, an edge exists if a user left a tip/comment on a restaurant. Metadata include comments.

@heiseonline@social.heise.de
2025-09-19 14:02:00

KI entwickelt erstmals Viren – und sie können bereits Bakterien töten
US-Forscher haben eine KI dazu gebracht, Genome für bakterienfressende Viren zu entwerfen. Einige der Designs wurden gegen E.-coli-Bakterien tatsächlich aktiv.

KI entwickelt erstmals Viren – und sie können bereits Bakterien töten
US-Forscher haben eine KI dazu gebracht, Genome für bakterienfressende Viren zu entwerfen. Einige der Designs wurden gegen E.-coli-Bakterien tatsächlich aktiv.

@hikingdude@mastodon.social
2025-07-18 18:47:09

Uff finally I wrote the blogpost for a hike I did in May (and you've probably seen the video of it already). But I haven't shared the #photos ans some more background story from it.
I don't know why but this time I found it really hard to write. Maybe I'm a bit out of practice or I just didn't find the right mood for it - I'm not sure.
Anyways, I hope you enjoy…

A serene landscape featuring a path cutting through a lush grassy area, bordered by tall trees with no leaves. In the distance, majestic mountains rise against a clear blue sky, creating a picturesque backdrop. The dominant colors in the image are black and the accent color is a deep blue. The scene exudes a sense of tranquility and natural beauty, with a hint of wilderness and adventure. A single tree stands prominently in the foreground, adding to the overall composition of the serene outdoor…
A breathtaking landscape featuring a mountain range with trees in the foreground and majestic mountains in the background. The scene is set under a clear blue sky with fluffy white clouds. The mountains appear rugged and grand, with snow-capped peaks adding to the dramatic scenery. The trees in the foreground provide a sense of scale and add a touch of green to the predominantly rocky landscape. This wilderness setting exudes a sense of tranquility and awe, showcasing the beauty of nature at it…
A breathtaking scene of a mountain range set against a backdrop of towering trees and distant mountains. The image showcases the beauty of the great outdoors, with a white dominant foreground and a black dominant background. The colors are accentuated by a rich green accent color, creating a harmonious natural palette. The landscape exudes a sense of wilderness, with hints of clouds in the sky adding to the overall atmosphere. A single tree stands out in the foreground, adding depth and dimensi…
@arXiv_astrophCO_bot@mastoxiv.page
2025-08-20 08:37:50

Effective bias expansion for circumventing 21 cm foregrounds
Wenzer Qin, Kai-Feng Chen, Katelin Schutz, Adrian Liu
arxiv.org/abs/2508.13268

Effective bias expansion for circumventing 21 cm foregrounds
The 21 cm line of neutral hydrogen is a promising probe of the Epoch of Reionization (EoR) but suffers from contamination by spectrally smooth foregrounds, which obscure the large-scale signal along the line of sight. We explore the possibility of indirectly extracting the 21 cm signal in the presence of foregrounds by taking advantage of nonlinear couplings between large and small scales, both at the level of the density field and a biased tracer of that field. When combined with effective fie…

@netzschleuder@social.skewed.de
2025-07-17 21:00:31

foursquare_global: Foursquare global check-ins (2013)
A bipartite network of users and locations, representing check-in events worldwide on Foursquare, from April 2012 to September 2013. Metadata include country, city name, city type (e.g. national capital), and vender's latitude and longitude.
This network has 3935215 nodes and 22809624 edges.
Tags: Social, Online, Unweighted, Metadata, Timestamps

foursquare_global: Foursquare global check-ins (2013). 3935215 nodes, 22809624 edges. https://networks.skewed.de/net/foursquare_global

foursquare_global — Foursquare global check-ins (2013)
A bipartite network of users and locations, representing check-in events worldwide on Foursquare, from April 2012 to September 2013. Metadata include country, city name, city type (e.g. national capital), and vender's latitude and longitude.