Published on: 2025-04-21 02:18:12
I'll start by presenting things in illustrated form: ; ls -l testfile -rw-r--r-- 1 cks 262144 Apr 13 22:03 testfile ; ls -s testfile 1 testfile ; ls -slh testfile 512 -rw-r--r-- 1 cks 256K Apr 13 22:03 testfile The two well known sizes that Unix files have are the logical 'size' in bytes and what stat.h describes as "the number of blocks allocated for this object", often converted to some number of bytes (as ls is doing here in the last command). A file's size in bytes is roughly speaking the
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Find related items on AmazonPublished on: 2025-04-26 04:22:59
Unsure Calculator Loading... Calculate with numbers you’re not sure about Hi, I'm Filip, and I'd like to introduce to you an early version of an uncertainty calculator. Statistics are scary, but they don't need to be. If you allow me to simplify, the field of statistics is just saying: I'm not certain about these numbers, but I would still like to reason about them. Turns out we're unsure about a lot in our lives, but we can't just throw our arms in the air and say, well, I'm not a statistic
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Find related items on AmazonPublished on: 2025-04-26 19:33:57
Landmark Admin has issued an update to its investigation of a cyberattack it suffered in May 2024, increasing the number of impacted individuals to 1.6 million. Landmark is a Texas-based third-party administrator (TPA) handling policy accounting, regulatory reporting, reinsurance support, and IT systems for major insurers nationwide like Liberty Bankers Life and American Benefit Life. In October 2024, the company warned that it detected suspicious activity on its networks on May 13th, 2024. T
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Find related items on AmazonPublished on: 2025-04-29 12:00:18
Apple / Elyse Betters Picaro / ZDNET Your mobile phone is a treasure trove of personal and confidential information. That's why it's a prime target for hackers who want to compromise or steal your data. Through malicious apps and websites, phishing attacks, and other threats, an attacker can gain control of your device through spyware. But how can you tell if your phone has been hacked or tapped? Also: Biometrics vs. passcodes: What lawyers recommend if you're worried about warrantless phone s
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Find related items on AmazonPublished on: 2025-05-04 03:57:00
In brief: Microsoft is considering making more job cuts this year, adding to the performance-based layoffs and other terminations it has implemented in 2025 so far. The latest round could come as soon as May and will reportedly target managers and non-coding staff. Some Microsoft organizations are looking to increase their span of control, defined as the number of direct reports or subordinates a manager or supervisor oversees. It also wants to increase the number of coders compared to non-code
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Find related items on AmazonPublished on: 2025-05-09 11:59:26
I n november 2020 the Central Bank of Brazil ( BCB ) launched Pix, a digital payment system, into the teeth of the covid-19 pandemic. Avoiding physical contact at a time when that was much desired, instantaneous, free and easy-to-use, Pix took off. Users need the recipient’s national ID number, phone number or a QR code to move money. By 2024 (see chart) it had become Brazil’s most popular payment technology, displacing both cash and cards. The number of transactions increased from 9bn in 2021 t
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Find related items on AmazonPublished on: 2025-05-11 03:36:19
Last month, The Atlantic’s editor-in-chief Jeffrey Goldberg revealed that he had been accidentally included in a government group chat where confidential war plans were shared. US National Security Advisor Mike Waltz was the one who added Goldberg, but he blamed the number getting “sucked in” by his phone. Now, a new report at The Guardian explains how an iOS feature played a key role in the whole mess. Hugo Lowell writes at The Guardian: According to three people briefed on the internal inves
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Find related items on AmazonPublished on: 2025-05-17 18:48:54
Elon Musk's Tesla has posted its first-quarter deliveries — and the numbers are even worse than analysts feared. The carmaker said it delivered 336,681 vehicles for the January-March period, a massive 13 drop from 386,810 cars over the same period last year. It's a rout, in other words, showing that rapidly growing competition and an international movement opposing Musk's politics are exerting considerable pressure on the once-ascendant electric carmaker. Sales haven't been this low since the
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Find related items on AmazonPublished on: 2025-05-17 23:37:16
As many other folks have reported in the last few weeks, we have also been seeing a huge increase in the amount of traffic from abusive web crawlers. Automated blocking of abusive traffic has long been a necessary evil. We already block a number of badly behaved SEO and AI crawlers on our shared hosting servers and, on-request, some customer servers. We also have a number of automatic tools to block abusive clients. These are typically attempting to brute force passwords or run web security sca
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Find related items on AmazonPublished on: 2025-05-23 00:04:35
In Brief Last weekend, Jeffrey Goldberg, editor-in-chief of The Atlantic, found himself at the center of a digital fiasco when he was unexpectedly added to a Signal group chat with 17 U.S. government officials who were discussing imminent airstrikes in Yemen. For some, the incident has raised questions about how phone numbers end up in contact lists and how messaging apps pull in users. National security adviser Mike Waltz on Wednesday stated that Goldberg’s number was “sucked in” from another
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Find related items on AmazonPublished on: 2025-05-27 15:30:58
YouTube Shorts has introduced a change that brings analytics for its bite-sized video option into closer parity with rival services TikTok and Instagram. The video platform will remove the minimum play time requirement it previously had for a user watching a clip to count as a view. Beginning March 31, a "view" will be added any time a YouTube Short is played or replayed. This will likely mean that creators will see higher view counts after the change takes place. YouTube will continue to track
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Find related items on AmazonPublished on: 2025-05-30 17:45:18
According to the Atlantic, top White House officials used the end-to-end encrypted messaging app Signal to discuss military strikes in Yemen before those strikes were carried out on March 15. White House National Security Council spokesman Brian Hughes confirmed the messages' authenticity to ABC News, and this revelation has drawn criticism from others in the government. "If true, these actions are a brazen violation of laws and regulations that exist to protect national security, including the
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Find related items on AmazonPublished on: 2025-05-31 08:57:11
Hann A fast approximate nearest neighbor search library for Go Hann is a high-performance approximate nearest neighbor search (ANN) library for Go. It provides a collection of index data structures for efficient similarity search in high-dimensional spaces. Currently, supported indexes include Hierarchical Navigable Small World (HNSW), Product Quantization Inverted File (PQIVF), and Random Projection Tree (RPT). Hann can be seen as a core component of a vector database (like Milvus, Pinecone
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Find related items on AmazonPublished on: 2025-05-31 17:26:05
authored by Premmi and Beguène Previous Topic: An Axiomatic Study of Numbers Introduction Thinking of numbers intuitively brings to mind the simplest and most fundamental set of numbers, namely the set of natural numbers. These numbers are used to count objects like cars, books, pens, etc. If we associate natural numbers such as 1, 2, 3, etc. with counting, then with what corresponding concepts do we relate numbers like -4, \sqrt{3} \text{ and } \frac{22}{7}? To reason about all kinds of num
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Find related items on AmazonPublished on: 2025-06-01 18:26:05
authored by Premmi and Beguène Previous Topic: An Axiomatic Study of Numbers Introduction Thinking of numbers intuitively brings to mind the simplest and most fundamental set of numbers, namely the set of natural numbers. These numbers are used to count objects like cars, books, pens, etc. If we associate natural numbers such as 1, 2, 3, etc. with counting, then with what corresponding concepts do we relate numbers like -4, \sqrt{3} \text{ and } \frac{22}{7}? To reason about all kinds of num
Keywords: axioms mathbb natural numbers set
Find related items on AmazonPublished on: 2025-06-04 19:35:33
Why numbering should start at zero To denote the subsequence of natural numbers 2, 3, ..., 12 without the pernicious three dots, four conventions are open to us a) 2 ≤ i < 13 b) 1 < i ≤ 12 c) 2 ≤ i ≤ 12 d) 1 < i < 13 Are there reasons to prefer one convention to the other? Yes, there are. The observation that conventions a) and b) have the advantage that the difference between the bounds as mentioned equals the length of the subsequence is valid. So is the observation that, as a consequen
Keywords: bound convention natural number subscript
Find related items on AmazonPublished on: 2025-06-05 05:35:33
Why numbering should start at zero To denote the subsequence of natural numbers 2, 3, ..., 12 without the pernicious three dots, four conventions are open to us a) 2 ≤ i < 13 b) 1 < i ≤ 12 c) 2 ≤ i ≤ 12 d) 1 < i < 13 Are there reasons to prefer one convention to the other? Yes, there are. The observation that conventions a) and b) have the advantage that the difference between the bounds as mentioned equals the length of the subsequence is valid. So is the observation that, as a consequen
Keywords: bound convention natural number subscript
Find related items on AmazonPublished on: 2025-06-05 07:33:00
At some point during the ’90s, the trend of marketing high-thread-count bedsheets as a higher-quality option took off. It's easy to see why you could fall for it: Higher-thread-count sheets often feel soft and silky, with a nice weight to them thanks to all the piled-on threads. More fabric must be better and last longer, right? But while thread count does affect the density and feel of that fabric, it doesn't necessarily make it a great bedsheet, or a longer-lasting one. Part of that is the he
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Find related items on AmazonPublished on: 2025-06-09 02:42:35
The Pennsylvania State Education Association (PSEA), a labor union representing educators across the state, says hackers stole the sensitive personal information of more than half a million of its members. PSEA is the largest organization for educators in Pennsylvania, representing current and former teachers, counselors, health care workers, and school social workers. In a filing with Maine’s attorney general on Tuesday, PSEA said it experienced a cyberattack in July 2024 that saw an unauthor
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Find related items on AmazonPublished on: 2025-06-10 06:53:25
US sperm donor giant California Cryobank is warning customers it suffered a data breach that exposed customers' personal information. California Cryobank is a full-service sperm bank providing frozen donor sperm and specialized reproductive services, such as egg and embryo storage. The company is the largest sperm bank in the US and services all 50 states and more than 30 countries worldwide. California Cryobank detected suspicious activity on its network on April 21, 2024, and isolated the co
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Find related items on AmazonPublished on: 2025-06-11 10:00:00
Your smartphone puts the world at your fingertips. But shopping, selling and connecting online can expose sensitive personal information to spammers, scammers and strangers. Surfshark Alternative Number allows you to do all your favorite things online without compromising your privacy or exposing yourself to risk. With Surfshark, you can shield yourself from identity theft, reduce spam calls and texts and get only the messages you want, all with the help of a single app. Peace of mind in a sin
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Find related items on AmazonPublished on: 2025-06-14 04:20:02
Performance Benchmarks On a Hetzner CCX23 machine with 4 vCPU and 16GB RAM here are our numbers around throughput and GET/SET latencies when compared with other in-memory databases for `num_clients = 4`. | Metric | DiceDB | Redis | | -------------------- | -------- | -------- | | Throughput (ops/sec) | 15655 | 12267 | | GET p50 (ms) | 0.227327 | 0.270335 | | GET p90 (ms) | 0.337919 | 0.329727 | | SET p50 (ms) | 0.230399 | 0.272383 | | SET p90 (ms) | 0.339967 | 0.331775 | -> detailed benchmark
Keywords: ms numbers p90 set throughput
Find related items on AmazonPublished on: 2025-06-14 10:00:02
Edgar Cervantes / Android Authority While it’s something you hope never happens, there may be times when you find it impossible to make a payment for your prepaid phone service on time. On the other hand, maybe you’re going out of the country and wondering how long you can go before you risk losing your account and number or if you can somehow pause your service. So, can you safely miss a payment? The answer is often yes, but there are some things you should be aware of. Every US-based prepaid
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Find related items on AmazonPublished on: 2025-06-15 14:44:44
Cisco has patched a denial of service (DoS) vulnerability that lets attackers crash the Border Gateway Protocol (BGP) process on IOS XR routers with a single BGP update message. IOS XR runs on the company's carrier-grade, Network Convergence System (NCS), and Carrier Routing System (CRS) series of routers, such as the ASR 9000, NCS 5500, and 8000 series. This high-severity flaw (tracked as CVE-2025-20115) was found in the confederation implementation for the Border Gateway Protocol (BGP), and
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Find related items on AmazonPublished on: 2025-06-15 06:36:08
We don't need no stinkin' WebUSB! It turns out that there is a way for a web page to access USB devices without requiring WebUSB and its associated political disagreements! Not only that, a device can intentionally design itself to bypass all of the user consent requirements. Quick demo Load u2f-hax.uf2 onto a Raspberry Pi Pico (RP2040 version), and then load index.html from either localhost or another secure context. The "On!" and "Off!" buttons will toggle the LED, and the state of pin GP2
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Find related items on AmazonPublished on: 2025-06-16 15:00:00
Happy Pi Day! We celebrate pi on March 14 because 3-14 gives the first three digits of this famous number. But what’s the big deal about pi anyway? Why does it get a day? Well, for starters, it defines the simplest, most perfect shape, the circle. So it’s everywhere around you. Pi is the ratio of the circumference to the diameter of a circle: π = C/d. No matter how big or small a circle is, that ratio is always the same. In decimal notation, it’s 3.141592653 … aaand you can run that out as far
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Find related items on AmazonPublished on: 2025-06-16 07:54:31
Since you’re reading this essay, you probably already know about the mathematical holiday called Pi Day held on March 14th of each year in honor of the mystical quantity π = 3.14…. Pi isn’t just a universal constant; it’s trans-universal in the sense that, even in an alternate universe with a different geometry than ours, conscious beings who wondered1 about the integral of sqrt(1–x2) from x = –1 to x = 1 would still get — well, not 3.14…, but exactly half of it, or 1.57…. Therein lies a catch i
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Find related items on AmazonPublished on: 2025-06-17 15:10:38
Definite clause grammars and symbolic differentiation Published on March 9, 2025 25 minute read Back to homepage Let's talk about calculus. It's an extremely important field for almost all branches of science, and you've probably seen at least some aspects of it during high school or possible further education. Applications range from physics, chemistry, and electrical engineering to finance, medicine, meteorology, and much more. Fundamentally, calculus is the mathematical field concerned with
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Find related items on AmazonPublished on: 2025-06-21 17:23:06
TL;DR New York Mobile has launched as a new nationwide MVNO on T-Mobile’s 5G network, offering customers the ability to choose their own phone numbers. The service allows users to pick from rare and customizable numbers, including sought-after New York area codes like 212, 718, and 917. The service targets individuals and businesses looking to personalize their phone numbers for branding or personal expression. A new player has entered the competitive wireless market, offering a unique servic
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Find related items on AmazonPublished on: 2025-06-25 10:59:18
Just over two months into 2025, the number of pending AI bills in the U.S. has grown to 781, according to an online tracking tool. The tool, maintained by consulting firm MultiState, shows that the number of pending U.S. bills pertaining to AI now exceeds the total number of AI bills proposed in all of 2024 (743). In 2023, state and federal lawmakers proposed fewer than 200 AI-related bills. A few recently proposed laws include Maryland’s H.B. 1331, a bill regulating the development and use of
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