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Type 1 Diabetes Reversed in Mice Using Engineered Blood Vessels

2025-02-27

Type 1 Diabetes Reversed in Mice Using Engineered Blood Vessels

A preclinical study shows that transplanting insulin-producing cells alongside engineered blood vessel-forming cells successfully reversed type 1 diabetes in mice. The innovative approach involved co-implanting human islets and reprogrammed vascular endothelial cells (R-VECs) under the skin, creating a vascularized network that produced insulin and normalized blood glucose for over 20 weeks. This breakthrough offers hope for a cure, though challenges remain in scaling up production and avoiding immunosuppression before clinical trials in humans.

(newatlas.com)

Tech Type 1 Diabetes Cell Transplantation Vascular Engineering

O(n) vs O(n²) Startups: Which Makes More Money?

2025-05-18

O(n) vs O(n²) Startups: Which Makes More Money?

This essay explores two distinct types of tech startups: O(n) and O(n²). O(n) startups (like Mailchimp) grow linearly, boast high margins, and require no outside funding. O(n²) startups (like Slack) exhibit exponential growth but necessitate heavy investment. The author argues that while VCs favor O(n²) companies, O(n) founders may ultimately earn more due to easier profitability and higher valuations. O(n) startups thrive on stable growth, clear profit models, and lower operational costs, while O(n²) companies face higher risk and uncertainty.

(rohan.ga)

Startup

Ignore the Hype: AI Won't Kill Software Development

2025-01-24

Ignore the Hype: AI Won't Kill Software Development

Many are claiming AI will replace software developers, but the author argues this is nonsense; the best days of software development are yet to come. AI tools boost developer productivity (Jevons Paradox), unlocking more projects, not fewer jobs. Even if AI handles some tasks, software development involves communication, design, and system architecture – all requiring human input. AI's computational cost and limitations also prevent complete human replacement. Ultimately, AI will accelerate technological progress, driving economic growth and creating more opportunities. Software developers should embrace AI, learn new tools and methods, and continuously upskill.

(dustinewers.com)

Development

The Neglected Client-Side Web: Why Nobody Cares About Slow Loading Times

2025-08-23

This article discusses the often-overlooked issue of poor client-side web experiences. While server-side problems frequently dominate discussions, the author points out the consistent neglect of slow loading times, clunky UIs, and other client-side frustrations. Using Github's recent update as an example, many users report slow performance, yet website operators prioritize server-side concerns. The author argues that websites hold significant power, leaving users with boycotts as their only recourse, which are largely ineffective. Websites often lack effective measurement of user churn, contributing to their apathy toward client-side experiences. Ultimately, the author admits to making editorial decisions that may negatively impact users but frames it as a necessary trade-off.

(utcc.utoronto.ca)

Development client-side

Arabidopsis Wound Healing: Unraveling the Low Oxygen and Ethylene Signaling Pathways

2025-07-09

Arabidopsis Wound Healing: Unraveling the Low Oxygen and Ethylene Signaling Pathways

Researchers utilized Arabidopsis to investigate the molecular mechanisms behind plant wound healing. They discovered that low oxygen and ethylene signaling pathways play crucial roles in the wound response. Through a series of experiments, including gene cloning, surgical injury, chemical treatments, and oxygen measurements, the study revealed the expression regulation of specific genes during wound healing and the roles of related proteins in cell wall formation and periderm regeneration. This research enhances our understanding of plant wound responses and offers insights into strategies for improving plant resilience in agriculture and horticulture.

(www.nature.com)

Tech Plant Biology Wound Healing Molecular Mechanisms

SSL.com Domain Validation Flaw: Incorrectly Verifying Email Domains

2025-04-19

A security vulnerability has been discovered in SSL.com's domain validation system. By exploiting the BR 3.2.2.4.14 DCV method (Email to DNS TXT Contact), an attacker can trick the system into verifying their email domain, thus obtaining unauthorized certificates. For example, using `[email protected]` as the verification email, SSL.com incorrectly added `aliyun.com` to the list of verified domains, allowing the attacker to obtain certificates for `aliyun.com` and `www.aliyun.com`. This indicates a failure to accurately differentiate between the verification email and the target domain, posing a significant security risk.

(bugzilla.mozilla.org)

Tech domain validation

From Beach to Museum: The Epic Journey of Art the Whale

2025-03-21

The story of Art the Whale begins with the discovery of a 40-foot California Gray Whale carcass. What follows is an incredible journey: dismemberment, clandestine burial, and eventual reconstruction by scientists. Art, now the centerpiece exhibit at the Sierra Natural History Museum, went by eight different names throughout his post-mortem journey, reflecting the various stages of his transformation. This article recounts the museum team's resourcefulness and dedication in acquiring this complete whale skeleton at minimal cost, overcoming numerous challenges along the way.

(ejournals.sierracollege.edu)

Misc museum

AI Doesn't Make Engineers 10x More Productive (Busting the Myth)

2025-08-06

This article debunks the widespread claim that AI increases engineer productivity by 10x or even 100x. The author, after experimenting with various AI coding tools, found that while AI excels at boilerplate code, it struggles with complex projects, large codebases, and less popular libraries, often introducing security vulnerabilities. The author argues that AI boosts are incremental and don't scale linearly. True productivity gains stem from preventing unnecessary work, not just faster coding. The author concludes that claims of 10x AI-driven productivity gains are likely driven by misunderstanding, vested interests, or managerial pressure, urging engineers not to feel anxious due to such inflated claims.

(colton.dev)

Development

Baking the Y Combinator from Scratch: Part 1 - The Fixpoint Combinator

2025-04-09

This post delves into the Y combinator, a mathematical construct that implements recursion in functional languages without explicit self-reference. It begins by explaining fixed points, then progressively derives the formula for the Y combinator, explaining its self-replicating mechanism. Through analysis of the Ω combinator, the author shows how the Y combinator avoids infinite nesting by self-replication at runtime. The post also briefly introduces lambda calculus and formal systems, laying the groundwork for a deeper understanding of the Y combinator in later parts.

(the-nerve-blog.ghost.io)

Development Y combinator

Amazon Forces a Privacy Trade-off for Alexa Users

2025-03-14

Amazon Forces a Privacy Trade-off for Alexa Users

Amazon will now delete Alexa voice recordings by default, but this disables the Voice ID feature for users who opt out of saving recordings. Voice ID allows for actions like sharing calendar events. This decision sparks debate about the balance between user privacy and convenience. Past controversies include reports of Amazon employees listening to Alexa recordings and viewing Ring camera footage. Amazon claims this move improves speech recognition and emphasizes encryption and security measures. However, analysts suggest Amazon prioritizes profitability through its Alexa+ subscription service over user privacy concerns.

(arstechnica.com)

Tech

Serverless QUIC Proxy via NAT Hole Punching with AWS Lambda

2025-06-21

Serverless QUIC Proxy via NAT Hole Punching with AWS Lambda

This project implements a serverless QUIC proxy using AWS Lambda functions and NAT hole punching. Leveraging S3 for coordination and UDP traversal techniques, it creates encrypted proxy connections without needing dedicated servers – only on-demand Lambda functions. The system uses a three-phase approach: coordination (client discovers public IP via STUN, writes session info to S3), NAT hole punching (client and Lambda exchange UDP packets to create bidirectional holes), and QUIC tunnel establishment (client starts QUIC server, Lambda connects). The result is a browser connecting to the internet via a SOCKS5 proxy, with the Lambda function acting as an exit node forwarding traffic.

(github.com)

Development NAT hole punching

Building Effective LLM Agents: Start Simple

2025-06-17

Building Effective LLM Agents: Start Simple

Anthropic shares its learnings from building Large Language Model (LLM) agents across various industries. They emphasize the importance of simple, composable patterns over complex frameworks. The post defines agents, differentiating between predefined workflows and dynamically controlled agents. It details several building patterns, including prompt chaining, routing, parallelization, orchestrator-workers, and evaluator-optimizer. It advocates starting with direct LLM API usage, gradually increasing complexity, and highlights the importance of tool engineering and maintaining simplicity and transparency in production.

(www.anthropic.com)

AI

LeCun: LLMs Will Be Obsolete in Five Years

2025-04-05

LeCun: LLMs Will Be Obsolete in Five Years

Yann LeCun, Meta's chief AI scientist, predicts that large language models (LLMs) will be largely obsolete within five years. He argues that current LLMs lack understanding of the physical world, operating as specialized tools in a simple, discrete space (language). LeCun and his team are developing an alternative approach called JEPA, which aims to create representations of the physical world from visual input, enabling true reasoning and planning capabilities surpassing LLMs. He envisions AI transforming society by augmenting human intelligence, not replacing it, and refutes claims of AI posing an existential risk.

(www.newsweek.com)

AI

UN Report: Israel Guilty of Genocide in Gaza

2025-09-16

UN Report: Israel Guilty of Genocide in Gaza

A UN commission of inquiry has concluded that Israel is guilty of genocide in Gaza, marking the most authoritative statement on the issue to date. The 72-page report details four acts prohibited under the 1948 Genocide Convention, finding that Israeli leaders intended to destroy Palestinians in Gaza as a group. This is the first comprehensive legal probe by a UN body, holding significant weight in the ongoing International Court of Justice (ICJ) case brought by South Africa accusing Israel of genocide. The report urges UN member states to take action, including halting arms transfers to Israel and imposing sanctions on those involved in or facilitating genocide.

(www.middleeasteye.net)

Tech Gaza

Dr.TVAM: An Inverse Rendering Framework for Tomographic Volumetric Additive Manufacturing

2025-01-17

Dr.TVAM: An Inverse Rendering Framework for Tomographic Volumetric Additive Manufacturing

Dr.TVAM is an inverse rendering framework for tomographic volumetric additive manufacturing (TVAM) built on the Mitsuba renderer. It leverages physically-based differentiable rendering to optimize patterns for TVAM, supporting scattering printing media, arbitrary vial shapes, and projector motions. An improved discretization scheme for the target shape is also included. A command-line tool and comprehensive documentation are provided for easy customization and optimization.

(github.com)

Development inverse rendering volumetric additive manufacturing Mitsuba renderer

Beetroot Juice, Oral Microbiome, and Blood Pressure in Older Adults

2025-07-27

Beetroot Juice, Oral Microbiome, and Blood Pressure in Older Adults

A new study reveals that the blood pressure-lowering effect of nitrate-rich beetroot juice in older adults may be linked to specific changes in their oral microbiome. Researchers found that after two weeks of consuming concentrated beetroot juice twice daily, older adults experienced a decrease in blood pressure, unlike younger participants. This effect is likely due to the suppression of potentially harmful oral bacteria, impacting the conversion of nitrate to nitric oxide, crucial for vascular health. The study suggests that encouraging older adults to consume more nitrate-rich vegetables could offer significant long-term health benefits.

(news.exeter.ac.uk)

Tech beetroot juice blood pressure oral microbiome

Minimalist NAS: frood, an Alpine initramfs System

2024-12-16

Minimalist NAS: frood, an Alpine initramfs System

The author introduces frood, a NAS system built as a single, large initramfs image containing a complete Alpine Linux system. This design results in fast boot times and reduced wear on storage devices. Configuration is straightforward; files reside directly in the image, eliminating complex DSLs or configuration tools. The system state is tracked with Git, and each boot is effectively a fresh start, preventing configuration clutter. The article details the system's build process, including the use of the alpine-make-rootfs script, installation of essential packages, and writing startup scripts. QEMU testing and the system image update procedure are also described. In essence, frood is a lightweight, easily maintainable, and deployable NAS system whose simple design philosophy is worth emulating.

(words.filippo.io)

Development

Types: The Foundation of Software Design

2025-01-03

Types: The Foundation of Software Design

Software design is more than just writing functions; it's about high-level architecture. This article argues that types are the most crucial element. Types define data structures and function interfaces, key to understanding and communicating software design. Even in dynamically typed languages, types exist implicitly. Good type design improves code readability, maintainability, and reliability, aiding abstraction and modularity. The article explores differences between static and dynamic typing and how various type systems (like generics and dependent types) impact design.

(www.tedinski.com)

Development type systems programming paradigms

Pixels Weren't Always Square: A Deep Dive into Retro Game Aspect Ratios

2025-05-30

Pixels Weren't Always Square: A Deep Dive into Retro Game Aspect Ratios

Did you know that pixels weren't always square? This article explores the fascinating history of pixel aspect ratios in retro computer games. From early consoles to PCs, pixel shapes varied wildly, far from the ubiquitous square we see today. The author analyzes the aspect ratios of games across various platforms (SNES, Apple II, TRS-80, Commodore 64, etc.), and how best to present them on modern displays. Concepts of 'authenticity' and 'super-authenticity' are discussed, comparing methods like nearest-neighbor, linear, and cubic scaling. Numerous game screenshots illustrate the visual impact of different aspect ratios, concluding that while most developers considered aspect ratio, it wasn't always accurate or consistent, and while a 4:3 display is often a good compromise, it's not always the best solution.

(datadrivengamer.blogspot.com)

Game

Glowing Plants: Cheap Nanoparticles Turn Succulents into Night Lights

2025-08-29

Glowing Plants: Cheap Nanoparticles Turn Succulents into Night Lights

Researchers at South China Agricultural University have developed a low-cost, biocompatible phosphor compound that allows succulents to glow for up to two hours after just a few minutes of sunlight or LED exposure. This inexpensive method, involving injecting nanoparticles into the leaves, avoids complex genetic modification techniques. The team found an optimal nanoparticle size for uniform, bright illumination, even enough to light nearby objects. The technology could revolutionize indoor and garden decor, creating stunning, glowing landscapes at minimal cost (around $1.4 per plant). Long-term safety studies are underway.

(newatlas.com)

Tech plant lighting

Register Allocation in Compilers: A Deep Dive

2025-02-17

This article provides a clear explanation of the complexities of register allocation in compilers. Starting with a simple function example, it demonstrates how variables are mapped to registers and how stack space (spilling) is used when registers are insufficient. The article details two algorithms, linear scan and graph coloring, and explores additional challenges in real-world architectures, such as calling conventions and instruction set limitations. Even seemingly simple register allocation is fraught with optimization and trade-off challenges, making it a remarkably challenging aspect of compiler implementation.

(langdev.stackexchange.com)

Development register allocation

Blazing Fast UR5 Inverse Kinematics Solver using IK-Geo

2025-09-05

This article presents a high-performance inverse kinematics (IK) solver for the UR5 robot arm, leveraging the IK-Geo library. Utilizing subproblem decomposition, it solves three canonical geometric subproblems to achieve speeds over 40x faster than IKFast, with accuracy reaching machine precision (10⁻¹⁶). Returning all solutions and gracefully handling singularities, it offers significant advantages for real-time control, path planning, and simulation, unlocking new capabilities in robotics.

(alexanderelias.com)

Development Inverse Kinematics

Google's Gemini 2.0: Powerful AI Features Now Free, But at What Cost?

2025-03-13

Google's Gemini 2.0: Powerful AI Features Now Free, But at What Cost?

Google is pushing hard to make Gemini a household name, releasing significant upgrades to Gemini 2.0. Key improvements, including advanced features like enhanced Deep Research and a reasoning model leveraging your search history, are now freely available. This enhanced model boasts a 1-million-token context window, file uploads, faster processing, and integrations with Google apps like Calendar and Photos. While Google emphasizes user control and the ability to disable search history access, privacy concerns remain.

(arstechnica.com)

AI

Reactive State Management in Python: A Practical Guide

2025-06-13

Reactive State Management in Python: A Practical Guide

This article explores reactive state management in Python using signals. Traditional approaches rely on manual updates, leading to bugs and maintenance headaches. Signals offer a declarative alternative, defining dependencies between states and automatically updating derived values. This solves common problems like forgotten updates, inconsistent states, and complex testing. The article details three core primitives: Signal, Computed, and Effect. Real-world examples demonstrate their use in microservice configuration, real-time dashboards, and distributed system monitoring.

(bui.app)

Development

Sebald's Austrian Literary Criticism: Marginality, Psychology, and the Loss of Heimat

2025-02-08

Sebald's Austrian Literary Criticism: Marginality, Psychology, and the Loss of Heimat

Jo Catling's new translation of W. G. Sebald's two essay collections on Austrian literature reveals the late author's unique perspective. Sebald's criticism transcends academic boundaries, offering insightful explorations of the psychological states of marginalized figures in Austrian literature, such as the schizophrenic Ernst Herbeck. He analyzes the socio-psychological crises reflected in the works of writers ranging from Grillparzer to Handke, and explores the complex interplay of 'Heimat' (homeland) with exile and identity, particularly amongst Jewish authors grappling with the conflict between belonging and displacement. This collection provides a profound reflection on Austrian literature and broader socio-cultural phenomena, appealing to readers interested in literary criticism and cultural studies.

(literaryreview.co.uk)

Misc Sebald Austrian Literature Literary Criticism

Fedora 42 Beta: A Fresh Install Experience and Numerous New Features

2025-03-18

Fedora 42 Beta: A Fresh Install Experience and Numerous New Features

Fedora 42 Beta is here! This update brings exciting improvements, including a brand-new Wayland-based Anaconda installer with more consistent keyboard control and an improved web UI for partitioning, making the installation process smoother and more intuitive. Fedora Workstation now defaults to the new web UI installer, offering features like a progress indicator, built-in help, and configuration review. KDE Plasma is now a full-fledged edition, with Power system support. Additionally, there's a new Rust-based COSMIC desktop environment, EROFS for live media, and many other enhancements for improved performance and stability. Several older features are being deprecated or removed, including Python 3.8 and python-pytest-runner.

(www.redhat.com)

Development

YC Backs Epic in Apple App Store Fee Fight

2025-08-25

YC Backs Epic in Apple App Store Fee Fight

Y Combinator filed an amicus brief supporting Epic Games' lawsuit against Apple, arguing that Apple's App Store fees (up to 30%) and anti-steering restrictions stifle startup growth. YC contends Apple's policies create insurmountable barriers to entry, hindering competition and innovation. They urge the court to uphold a previous ruling forcing Apple to allow developers to freely link to off-App Store purchase options without extra fees. This ruling has already spurred renewed investor interest in previously unviable app-based business models.

(www.macrumors.com)

Startup

Bluesky's Bigger Picture: Beyond the App

2025-06-21

Bluesky's Bigger Picture: Beyond the App

Bluesky is facing criticism for its perceived political leanings and user engagement. However, the article argues that Bluesky's value lies in its underlying open protocol, AT Proto, not just its namesake app. Numerous third-party apps built on AT Proto offer diverse social experiences, encompassing video, live streaming, blogging, and more, even integrating content from other platforms. Bluesky's future success hinges on emphasizing its open ecosystem, rather than solely positioning itself as an X alternative.

(techcrunch.com)

Tech

Nintendo's Strategy for Rising Switch 2 Development Costs

2025-07-08

Nintendo's Strategy for Rising Switch 2 Development Costs

Facing soaring development costs for Switch 2 games, Nintendo President Shuntaro Furukawa acknowledged the increased risk but stated the company is exploring various methods to maintain its traditional game development approach. This includes investing in more efficient development processes and developing more smaller games to mitigate costs and prices. While Switch 2 titles like Mario Kart World demonstrate higher ambition and higher price tags, Nintendo recognizes the potential price barrier and is closely monitoring the situation. This contrasts with the large-scale layoffs and game cancellations seen at other companies, highlighting Nintendo's cautious and pragmatic approach.

(www.theverge.com)

Game Game Development Costs

Google Simplifies Search Domains: ccTLDs Are Going Away

2025-04-16

Google Simplifies Search Domains: ccTLDs Are Going Away

Google announced it will gradually phase out country-code top-level domains (ccTLDs, such as google.ng and google.com.br), redirecting all traffic to google.com. This is based on Google's improvements in providing localized search results over the years, making ccTLDs unnecessary. The change won't affect how Search works or Google's handling of national legal obligations; only the browser address bar will change. Users may need to re-enter some search preferences.

(blog.google)

Tech domain redirection localized search

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