fly_larva: Drosophila larva brain (2023)
A complete synaptic map of the brain connectome of the larva of the fruit fly Drosophila melanogaster. Nodes are neurons, and edges are synaptic connections, traced individually from brain image sections using three-dimensional electron microscopy–based reconstruction. Node metadata include the neuron hempisphere, hemispherical homologue, cell type, annotations, and inferred cluster. Edge metadata include the type of interaction (`'aa'`,…
In the summer of 2023, gearing up for his bid for a second term, President Joe Biden gathered with a cadre of wealthy donors at a $7.5 million mansion in Greenwich, Connecticut.
As the $25,000-a-seat fundraising dinner began, the president turned to thank his host:
Stephen Mandel,
a billionaire hedge fund manager and devoted Democratic donor.
“I wouldn’t be here, standing here as president of the United States, without a lot of you in this room,”
Biden told the…
July was the second warmest on record globally, tied with 2024, and just behind 2023.
The global average temperature for July 2026 was 16.90°C, 0.67°C above the 1991-2020 average for July and 1.47°C above the estimated pre-industrial average for the month.
From https://climate.copernicus.eu/surface-
The most meaningful thing I've probably ever worked on is the Open Science Retreat.
The retreats since 2023 have connected #OpenScience enthusiasts from all over the world in a way that is beyond what I could have ever imagined.
Here is the new Wiki:
from my link log —
No vehicles in the park: a game about content moderation.
https://novehiclesinthepark.com/
saved 2023-06-24 https://dotat.at/:/1BJCD…
fly_larva: Drosophila larva brain (2023)
A complete synaptic map of the brain connectome of the larva of the fruit fly Drosophila melanogaster. Nodes are neurons, and edges are synaptic connections, traced individually from brain image sections using three-dimensional electron microscopy–based reconstruction. Node metadata include the neuron hempisphere, hemispherical homologue, cell type, annotations, and inferred cluster. Edge metadata include the type of interaction (`'aa'`,…
Kumulativer Zubau von #Balkonsolarleistung in #Deutschland mit Stand vom 22.05.2026.
Die summierte Leistung aller offiziell registrierten #Steckersolaranlagen beträgt b…
Germany’s used #EV market is gaining momentum: "between January–April 2025 and January–April 2026, used BEV registrations rose by 77%"
https://theicct.org/publication/europe
Study: rate of fabricated references in biomedical papers has grown 12x since 2023; in early 2026, one in 277 papers had at least one non-existent reference (Tristan Bove/Fortune)
https://fortune.com/2026/05/24/ai-hallucinations-scient…
Gartner nennt es das größte Infrastrukturprojekt der Menschheitsgeschichte. Man könnte es auch die teuerste Wette aller Zeiten nennen: Amazon, Alphabet, Meta und Microsoft haben seit 2023 über eine Billion Dollar in KI verbuddelt, meldet Bezmalinović bei heise online. Der freie Cashflow? Nur noch 7 Mrd. Dollar. #KI #BigTech
A U.S. bankruptcy judge on Tuesday approved a $46.75 million settlement for victims of a 2023 data breach
at the genetic testing company 23andMe,
which exposed genetic and other personal information of an estimated 6.9 million customers.
U.S. Bankruptcy Judge Brian Walsh in St. Louis said the settlement was fair and equitable, and in the best interest of a trust overseen by the company's bankruptcy administrator.
Anzahl der registrierten #Balkonkraftwerke in #Deutschland mit Stand vom 22.05.2026.
Der aktuelle Höchststand liegt bei 1347447 registrierten Anlagen.
Unplausible Inbetriebnahmedaten von 1900 bis 2017 wurden durch das Registrierungsdatum der
spanish_highschools: Spanish high schools (2023)
Directed networks of friendships obtained through a social survey of spanish high school students.
This network has 145 nodes and 2403 edges.
Tags: Social, Offline, Weighted, Metadata
https://networks.skewed.de/net/spanish
Organizational Technology Ladders: Remote Work and Generative AI Adoption
Gregor Schubert
https://arxiv.org/abs/2608.11626 https://arxiv.org/pdf/2608.11626 https://arxiv.org/html/2608.11626
arXiv:2608.11626v1 Announce Type: new
Abstract: This study proposes that firms move along an "organizational technology ladder": adopting one technology transforms hiring and work processes and builds skills and organizational capital that change the cost of adopting subsequent technologies. I study how firms' adoption of remote work technology during the COVID-19 period shaped later uptake of generative AI. Using U.S. job-posting data and an instrumental-variables strategy based on predicted differences in labor-market pressure to offer remote work, I estimate that a 10 percentage point increase in remote hiring in 2021-2022 increases the share of job postings mentioning generative AI in 2023-2024 by 0.4 percentage points across firms and 0.7 percentage points across occupations within firms. I provide evidence on mechanisms consistent with a technology-ladder channel: remote work adoption shifts hiring toward technical and managerial capabilities that predict faster conversion of generative AI exposure into adoption. Firms with return-to-office mandates---interpreted as revealing low remote productivity---exhibit a substantially larger response of generative AI adoption to remote work, consistent with an organizational frictions channel.
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A Note on the Identification Step in "A Semistructural Methodology for Policy Counterfactuals"
Henri Ker\"anen
https://arxiv.org/abs/2608.10596 https://arxiv.org/pdf/2608.10596 https://arxiv.org/html/2608.10596
arXiv:2608.10596v1 Announce Type: new
Abstract: The New Keynesian example of Beraja (2023) is not identified at its printed calibration: more than one structure satisfies every condition of its identification step. Two of the paper's six identifying restrictions coincide on equilibrium equations consistent with the printed reduced form, leaving eleven conditions to determine an equation's twelve coefficients. The note derives the rank condition the identification step requires, computable from the reduced form and the restrictions alone. The note also documents and corrects a misprint in the paper's counterfactual display. A one-clause amendment to the paper's Theorem 1 restores its conclusion.
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Estimated Demand for Mega-Constellation Internet Service
Akhil Rao
https://arxiv.org/abs/2608.08851 https://arxiv.org/pdf/2608.08851 https://arxiv.org/html/2608.08851
arXiv:2608.08851v1 Announce Type: new
Abstract: The near-term growth of the commercial space economy and sustainability of the low-Earth orbit (LEO) environment depends on the commercial prospects of large LEO satellite telecommunications constellations (``mega-constellations''). If successful, mega-constellations can spur competition between launch providers, which may lead to lower launch prices. They may also demand orbital sustainability services and/or generate additional collision risk, which may in turn affect space sustainability interests. Consumer demand for mega-constellations' internet services is critical to their commercial success. This analysis presents a method to estimate consumer demand for mega-constellations' internet services, using SpaceX's Starlink over December 2021--November 2023 as an example. This analysis finds that Starlink users are highly concentrated in the wealthiest countries. It also finds that consumer demand for Starlink is growing more slowly than orbital capacity is being added and more slowly than demand for non-Starlink internet overall. Continuation of these trends may indicate that the market for mega-constellation internet is less lucrative than previous forecasts have indicated.
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Price Responses of Rwandan Tungsten Exports under Conflict Minerals Regulation
Haruka Nagamori, Kazuhiko Nishimura
https://arxiv.org/abs/2608.08690 https://arxiv.org/pdf/2608.08690 https://arxiv.org/html/2608.08690
arXiv:2608.08690v1 Announce Type: new
Abstract: Section 1502 of the Dodd--Frank Act, enacted in 2010, requires U.S.-listed companies using tin, tantalum, tungsten, and gold (3TG) from the Democratic Republic of the Congo and adjoining countries to disclose information on the minerals' origins. Concerns have been raised that the regulation may have induced a de facto embargo through avoidance of sourcing from the covered region. However, how the price responsiveness of mineral exports evolved under changing institutional and market conditions remains insufficiently understood. Since tungsten production in the covered region is concentrated almost entirely in Rwanda, this study examines the price responsiveness of Rwandan tungsten exports from January 2009 to December 2023.
Because missing export quantity data prevent continuous observation of export unit values, we apply the identification approach of Nakano and Nishimura (2025), combining monthly mirror trade data from UN Comtrade with exchange rates and a world average price. An importer fixed-effects model is estimated using export value as the dependent variable, with the sample divided into four periods according to changes in the institutional and market environment.
The results reveal substantial temporal variation in price responsiveness. A statistically significant negative price response is observed in Period 1 ($\eta=-20.814$, $p<0.01$), disappears in Period 2 ($\eta=1.814$, $p>0.10$), reappears in Period 3 ($\eta=-5.277$, $p<0.01$), and disappears again in Period 4 ($\eta=0.440$, $p>0.10$). Coefficient-difference tests confirm significant changes between Periods 1 and 2 ($p=0.0021$) and between Periods 3 and 4 ($p=0.0006$). These findings suggest that the price responsiveness of Rwandan tungsten exports varied substantially over time rather than following a uniform trajectory after the regulation.
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