Focused search for science

2+ min ago (235+ words) Learn how to implement a centralized mutation system for multi-tenant SaaS using Next.js Server Actions. Explore RBAC, multi-subdomain handling, cache revalidation, and scalable API patterns for secure, maintainable backend architecture. In large SaaS projects, handling server actions individually in every module creates: 1- Code duplication 2- Inconsistent authorization checks 3- Cache invalidation issues 4 -Multi-tenant subdomain problems logger " Structured logging for debugging and monitoring. hasPermission & parseAccessRules " Implements RBAC to check if a user can perform a specific action. getBaseUrlWithSubdomain " Resolves the correct API base URL based on the shop subdomain. D. Shop / Subdomain Context E. Role-Based Access Control (RBAC) -Maps HTTP methods " CRUD actions. -Validates permissions dynamically. -Ensures consistent security across the SaaS. F. Dynamic Payload Handling -Supports single ID deletion, bulk deletion, and POST/PUT payloads. -Automatically revalidates Next.js paths or tags after mutation. -Ensures UI always reflects latest backend data. I. Error Handling & Logging…...

4+ min ago (293+ words) WTF is this: Deciphering the Mystery of Intelligent Document Processing Ah, documents " the ultimate party crashers of the digital age. They just won't quit, will they? From receipts to invoices, contracts to reports, our lives are filled with an endless stream of paperwork. But, what if I told you there's a way to make sense of it all? Enter Intelligent Document Processing (IDP), the superhero of the tech world that's here to save the day, one document at a time. Another reason IDP is trending is the advancements in AI and ML technologies. These technologies have become more sophisticated, allowing them to accurately extract data from even the most complex documents. Additionally, the cost of implementing IDP solutions has decreased significantly, making it more accessible to businesses of all sizes. IDP is being used in various industries, including: For example,…...

4+ min ago (225+ words) Before diving into the steps, you must understand the three non-negotiable elements every site needs: Follow this roadmap to build a site that aligns with 2025 standards. Your choice of platform dictates your long-term costs and flexibility. " Website Builders (e.g., Wix, Squarespace): Easier for beginners, all-inclusive pricing, but less flexible. " Content Management Systems (e.g., WordPress): The industry standard. WordPress is highly recommended for its scalability. It allows you to control costs effectively'starting small and adding functionality as you grow. With the help of modern theme and page-builder plugins, even if you know nothing about coding, you can still make the process incredibly easy. You can build a professional-looking website just like assembling building blocks, and in many cases, you can simply start with a complete theme and turn it into your own site with only a few simple adjustments. High-quality free themes like…...

5+ min ago (106+ words) This interview is rich in content " including technical insights as well as personal growth stories. Let's get to know this young developer and see how he is making his mark on the global open-source stage! Below is the full interview transcript: Yes, I've been fortunate to make several contributions to the community, with the most significant being my Google Summer of Code 2025 project. Drawing from my recent experiences with the DolphinScheduler community, open source appeals to me for three specific reasons: Based on my work with the authentication module, I see three key areas where we can make DolphinScheduler even more enterprise-ready:...

7+ min ago (1104+ words) Most voice agents break when customers interrupt mid-sentence or when call volume spikes. Here's how to build one that handles both. You'll deploy a production-grade AI voice agent using VAPI's native voice infrastructure (no custom TTS code needed) and Twilio's carrier-grade telephony. The result: sub-500ms response times, proper barge-in handling, and automatic failover when APIs timeout. Stack: VAPI for voice AI, Twilio for phone routing, webhook server for business logic integration. API Access & Authentication: vapi: Get Started with VAPI " Get vapi Most production deployments fail because they treat VAPI and Twilio as a single system. They're not. Twilio handles telephony routing. VAPI handles voice AI. Your server bridges them via webhooks. Keep these responsibilities separate or you'll debug phantom audio issues for weeks. Create your assistant configuration first. This defines the AI's behavior, voice characteristics, and how it handles interruptions:…...

7+ min ago (237+ words) Volcanic Ash Advisory Center Buenos Aires (VAAC) issued the following report:FVAG01 at 13:37 UTC, 04/12/25 from SABMVA ADVISORYDTG: 20251204/1340ZVAAC: BUENOS AIRESVOLCANO: PLANCHON PETEROA 357040PSN: S3513 W07034AREA: CHILE-ARGENTINASUMMIT ELEV: 13048 FT [3977 M]ADVISORY NR: 2025/039INFO SOURCE: SVO. GOES-E. WEBCAM.AVIATION COLOUR CODE: NOT GIVENERUPTION DETAILS: WEAK PUFF EMISSIONOBS VA DTG: 04/1310ZOBS VA CLD: VA NOT IDENTIFIABLE FROM SATELLITE DATAFCST VA CLD +6 HR: 04/1910Z NO VA EXPFCST VA CLD +12 HR: 05/0110Z NO VA EXPFCST VA CLD +18 HR: 05/0710Z NO VA EXPRMK: WEBCAM SHOWS CONT EMS OF STEAM AND GASESWITH A WEAK PUFF OF VA TIL FL160 DISSIPATING NEARTHE SUMMIT. VA IS NOT IDENTIFIABLE IN SATELLITEIMAGERY...SMNNXT ADVISORY: NO FURTHER ADVISORIES= Planch'n-Peteroa Volcano Volcanic Ash Advisory: WEAK PUFF EMISSION Planchon-Peteroa volcano (Chile) - Smithsonian / USGS Weekly Volcanic Activity Report for 12 November-18 November 2025 (New Activity / Unrest) Planch'n-Peteroa volcano (Central Chile and Argentina): elevated seismic activity Planch'n-Peteroa Volcano Volcanic Ash Advisory: NO VA EMISSION Planch'n-Peteroa volcano (Central Chile and Argentina):…...

8+ min ago (603+ words) Researchers demonstrate that nitrogen-vacancy centres in diamond regain their negative charge after exposure to light not through heat-driven processes, but via electron tunneling to nearby nitrogen atoms, a discovery that clarifies a fundamental limitation in their use as quantum bits and in other materials applications. https://quantumzeitgeist.com/wp-content/uploads/Capture-355.jpg NV centers are sensitive to charge fluctuations within the diamond lattice, which can diminish their quantum coherence and measurement accuracy. This work investigates the mechanisms governing charge state equilibration within ensembles of NV centers, focusing on the role of electron tunneling between centers and defects. The research combines optical spectroscopy and theoretical modelling to understand how NV charge states respond to external stimuli and internal fluctuations. The study reveals that charge state equilibration occurs via resonant tunneling, where electrons move between NV centers with different charge states through intermediate defect states. Calculations demonstrate that…...

12+ min ago (80+ words) [Techmeme permalink] Mauro Orru / Wall Street Journal: The EU expects to launch a formal bidding process for its AI gigafactories in early 2026 and close it in summer 2026, as the bloc seeks to catch up with the US" " The bloc has so far struggled in the AI race, lagging behind the U.S. both on innovation and financing This is a Techmeme archive page. It shows how the site appeared at 8:40 AM ET, December 4, 2025....

12+ min ago (536+ words) But beyond its immense size alone, Titanoboa also teaches us how the Earth's climate shaped evolution, during a time when it was recovering from the greatest mass extinction since the dinosaurs disappeared. Titanoboa was first discovered in 2009, when scientists excavating the Cerrej'n coal mine in La Guajira, Colombia, uncovered a gigantic vertebrae. At first, it was so massive that they assumed it must have belonged to a crocodile. However, the structure of the bone itself suggested otherwise. These were very clearly snake vertebrae, yet they were still far too large for any known species. As described in their 2009 study published in Nature, the researchers were eventually able to identify 28 individual Titanoboa fossils. This was enough to reconstruct its full size, and with remarkable accuracy, at that. Its vertebrae were nearly twice the diameter of those of a modern anaconda. Given…...

14+ min ago (129+ words) Recently, I conducted an internal evaluation to select an upgraded scheduling tool for our team, focusing on comparing Apache DolphinScheduler with traditional tools like Crontab and Airflow. Through hands-on testing, I found that Apache DolphinScheduler demonstrates clear advantages in several aspects, especially in efficiency. Here is my testing process and conclusions. To thoroughly compare the performance differences among different scheduling tools, I designed a test plan consisting of four key components: The first step was the core task orchestration capability test. I created 100 interdependent tasks, forming a complex directed acyclic graph (DAG). Finally, I compared user experience across the tools: Based on this benchmark comparison, the advantages of Apache DolphinScheduler are clear: For teams requiring efficient task scheduling, Apache DolphinScheduler is undoubtedly a strong option worth considering....