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🔗 Technology 🔗 Computing 🔗 Computing/Software 🔗 Computing/Free and open-source software

High Efficiency Image File Format (HEIF) is a container format for storing individual digital images and image sequences. The standard covers multimedia files that can also include other media streams, such as timed text, audio and video.

HEIF can store images encoded with multiple coding formats, for example both SDR and HDR images. HEVC is an image and video encoding format and the default image codec used with HEIF. HEIF files containing HEVC-encoded images are also known as HEIC files. Such files require less storage space than the equivalent quality JPEG.

HEIF files are a special case of the ISO Base Media File Format (ISOBMFF, ISO/IEC 14496-12), first defined in 2001 as a shared part of MP4 and JPEG 2000. Introduced in 2015, it was developed by the Moving Picture Experts Group (MPEG) and is defined as Part 12 within the MPEG-H media suite (ISO/IEC 23008-12).

HEIF was adopted by Apple in 2017 with the introduction of iOS 11.

🔗 Biography 🔗 Oregon 🔗 Perl

Randal L. Schwartz (born November 22, 1961), also known as merlyn, is an American author, system administrator and programming consultant.

He is known for his expertise in the Perl programming language, his promotional role within the Perl community, as a co-host of FLOSS Weekly, and for a controversial felony conviction resulting from State of Oregon vs. Randal Schwartz, later officially expunged.

🔗 Medicine 🔗 Philosophy 🔗 Philosophy/Ancient philosophy

In Ancient Greek philosophy, ataraxia (Greek: ἀταραξία, from ἀ- indicating negation or absence and ταραχ- tarach- 'to disturb, trouble' with the abstract noun suffix -ία), generally translated as 'unperturbedness', 'imperturbability', 'equanimity', or 'tranquility', is a lucid state of robust equanimity characterized by ongoing freedom from distress and worry. In non-philosophical usage, ataraxia was the ideal mental state for soldiers entering battle. Achieving ataraxia is a common goal for Pyrrhonism, Epicureanism, and Stoicism, but the role and value of ataraxia within each philosophy varies in accordance with their philosophical theories. The mental disturbances that prevent one from achieving ataraxia also vary among the philosophies, and each philosophy has a different understanding as to how to achieve ataraxia.

🔗 Extinction 🔗 Birds 🔗 Scottish Islands

The great auk (Pinguinus impennis) is a species of flightless alcid that became extinct in the mid-19th century. It was the only modern species in the genus Pinguinus. It is not closely related to the birds now known as penguins, which were discovered later by Europeans and so named by sailors because of their physical resemblance to the great auk.

It bred on rocky, remote islands with easy access to the ocean and a plentiful food supply, a rarity in nature that provided only a few breeding sites for the great auks. When not breeding, they spent their time foraging in the waters of the North Atlantic, ranging as far south as northern Spain and along the coastlines of Canada, Greenland, Iceland, the Faroe Islands, Norway, Ireland, and Great Britain.

The great auk was 75 to 85 centimetres (30 to 33 inches) tall and weighed about 5 kilograms (11 pounds), making it the largest alcid to survive into the modern era, and the second-largest member of the alcid family overall (the prehistoric Miomancalla was larger). It had a black back and a white belly. The black beak was heavy and hooked, with grooves on its surface. During summer, great auk plumage showed a white patch over each eye. During winter, the great auk lost these patches, instead developing a white band stretching between the eyes. The wings were only 15 cm (6 in) long, rendering the bird flightless. Instead, the great auk was a powerful swimmer, a trait that it used in hunting. Its favourite prey were fish, including Atlantic menhaden and capelin, and crustaceans. Although agile in the water, it was clumsy on land. Great auk pairs mated for life. They nested in extremely dense and social colonies, laying one egg on bare rock. The egg was white with variable brown marbling. Both parents participated in the incubation of the egg for around 6 weeks before the young hatched. The young left the nest site after 2–3 weeks, although the parents continued to care for it.

The great auk was an important part of many Native American cultures, both as a food source and as a symbolic item. Many Maritime Archaic people were buried with great auk bones. One burial discovered included someone covered by more than 200 great auk beaks, which are presumed to be the remnants of a cloak made of great auks' skins. Early European explorers to the Americas used the great auk as a convenient food source or as fishing bait, reducing its numbers. The bird's down was in high demand in Europe, a factor that largely eliminated the European populations by the mid-16th century. Scientists soon began to realize that the great auk was disappearing and it became the beneficiary of many early environmental laws, but this proved ineffectual.

Its growing rarity increased interest from European museums and private collectors in obtaining skins and eggs of the bird. On 3 June 1844, the last two confirmed specimens were killed on Eldey, off the coast of Iceland, ending the last known breeding attempt. Later reports of roaming individuals being seen or caught are unconfirmed. A record of one great auk in 1852 is considered by some to be the last sighting of a member of the species. The great auk is mentioned in several novels, and the scientific journal of the American Ornithological Society was named The Auk (now Ornithology) in honour of the bird until 2021.

🔗 Biography

Teuvo Kalevi Kohonen (11 July 1934 – 15 December 2021) was a prominent Finnish academic (Dr. Eng.) and researcher. He was professor emeritus of the Academy of Finland.

Prof. Kohonen made many contributions to the field of artificial neural networks, including the Learning Vector Quantization algorithm, fundamental theories of distributed associative memory and optimal associative mappings, the learning subspace method and novel algorithms for symbol processing like redundant hash addressing. He has published several books and over 300 peer-reviewed papers.

Kohonen’s most famous contribution is the Self-Organizing Map (also known as the Kohonen map or Kohonen artificial neural networks, although Kohonen himself prefers SOM). Due to the popularity of the SOM algorithm in many research and in practical applications, Kohonen is often considered to be the most cited Finnish scientist. The current version of the SOM bibliography contains close to 8000 entries.

During most of his career, Prof. Kohonen conducted research at Helsinki University of Technology (TKK). The Neural Networks Research Centre of TKK, a center of excellence appointed by Academy of Finland was founded to conduct research related to Teuvo Kohonen's innovations. After Kohonen's retirement, the center was led by Prof. Erkki Oja and later renamed to Adaptive Informatics Research Centre with widened foci of research.

Teuvo Kohonen was elected the First Vice President of the International Association for Pattern Recognition from 1982 to 1984, and acted as the first president of the European Neural Network Society from 1991 to 1992.

For his scientific achievements, Prof. Kohonen has received a number of prizes including the following:

• IEEE Neural Networks Council Pioneer Award, 1991
• Technical Achievement Award of the IEEE Signal Processing Society, 1995
• IEEE Frank Rosenblatt Award, 2008

🔗 United States 🔗 Skepticism 🔗 Alternative medicine 🔗 United States/Louisiana

Hadacol was a patent medicine marketed as a vitamin supplement. Its principal attraction, however, was that it contained 12 percent alcohol (listed on the tonic bottle's label as a "preservative"), which made it quite popular in the dry counties of the southern United States. It was the product of four-term Louisiana State Senator Dudley J. LeBlanc, a Democrat from Erath in Vermilion Parish in southwestern Louisiana. He was not a medical doctor, nor a registered pharmacist, but had a strong talent for self-promotion. Time magazine once described him as "a stem-winding salesman who knows every razzle-dazzle switch in the pitchman's trade".

🔗 Internet culture 🔗 Television 🔗 The Simpsons

Flanderization is the process through which a fictional character's essential traits are exaggerated over the course of a serial work. The term flanderization was coined by TV Tropes in reference to Ned Flanders of The Simpsons, who was caricatured over the show's run from a good neighbor who was religious among other characteristics into an evangelical "bible-thumper". Flanderization has been analyzed as an aspect of serial works, especially television comedies, that shows a work's decline.

🔗 Internet 🔗 Computing 🔗 Blogging 🔗 Podcasting

RSS (RDF Site Summary or Really Simple Syndication) is a web feed that allows users and applications to access updates to websites in a standardized, computer-readable format. Subscribing to RSS feeds can allow a user to keep track of many different websites in a single news aggregator, which constantly monitor sites for new content, removing the need for the user to manually check them. News aggregators (or "RSS readers") can be built into a browser, installed on a desktop computer, or installed on a mobile device.

Websites usually use RSS feeds to publish frequently updated information, such as blog entries, news headlines, episodes of audio and video series, or for distributing podcasts. An RSS document (called "feed", "web feed", or "channel") includes full or summarized text, and metadata, like publishing date and author's name. RSS formats are specified using a generic XML file.

Although RSS formats have evolved from as early as March 1999, it was between 2005 and 2006 when RSS gained widespread use, and the ("") icon was decided upon by several major web browsers. RSS feed data is presented to users using software called a news aggregator and the passing of content is called web syndication. Users subscribe to feeds either by entering a feed's URI into the reader or by clicking on the browser's feed icon. The RSS reader checks the user's feeds regularly for new information and can automatically download it, if that function is enabled.

🔗 United States 🔗 International relations 🔗 Espionage 🔗 History 🔗 Military history 🔗 Military history/North American military history 🔗 Military history/United States military history 🔗 Politics 🔗 Politics/American politics 🔗 United States/U.S. history

United States involvement in regime change describes United States government participation or interference, both overt and covert, in the replacement of foreign governments. In the latter half of the 19th century, the U.S. government initiated actions for regime change mainly in Latin America and the southwest Pacific, including the Spanish–American and Philippine–American wars. At the onset of the 20th century, the United States shaped or installed governments in many countries around the world, including neighbors Panama, Honduras, Nicaragua, Mexico, Haiti, and the Dominican Republic.

During World War II, the United States helped overthrow many Nazi Germany or imperial Japanese puppet regimes. Examples include regimes in the Philippines, Korea, the Eastern portion of China, and much of Europe. United States forces were also instrumental in ending the rule of Adolf Hitler over Germany and of Benito Mussolini over Italy. After World War II, the United States in 1945 ratified the UN Charter, the preeminent international law document, which legally bound the U.S. government to the Charter's provisions, including Article 2(4), which prohibits the threat or use of force in international relations, except in very limited circumstances. Therefore, any legal claim advanced to justify regime change by a foreign power carries a particularly heavy burden.

In the aftermath of World War II, the U.S. government struggled with the Soviet Union for global leadership, influence and security within the context of the Cold War. Under the Eisenhower administration, the U.S. government feared that national security would be compromised by governments propped by the Soviet Union's own involvement in regime change and promoted the domino theory, with later presidents following Eisenhower's precedent. Subsequently, the United States expanded the geographic scope of its actions beyond traditional area of operations, Central America and the Caribbean. Significant operations included the United States and United Kingdom-orchestrated 1953 Iranian coup d'état, the 1961 Bay of Pigs Invasion targeting Cuba, and support for the overthrow of Sukarno by General Suharto in Indonesia. In addition, the U.S. has interfered in the national elections of countries, including the Philippines in 1953, and Japan in the 1950s and 1960s as well as Lebanon in 1957. According to one study, the U.S. performed at least 81 overt and covert known interventions in foreign elections during the period 1946–2000. Another study found that the U.S. engaged in 64 covert and six overt attempts at regime change during the Cold War.

Following the dissolution of the Soviet Union, the United States has led or supported wars to determine the governance of a number of countries. Stated U.S. aims in these conflicts have included fighting the War on Terror, as in the ongoing Afghan war, or removing dictatorial and hostile regimes, as in the Iraq War.

🔗 Mathematics 🔗 Germany 🔗 Military history 🔗 Statistics 🔗 Military history/Intelligence 🔗 Military history/World War II 🔗 Military history/German military history 🔗 Military history/European military history

In the statistical theory of estimation, the German tank problem consists of estimating the maximum of a discrete uniform distribution from sampling without replacement. In simple terms, suppose we have an unknown number of items which are sequentially numbered from 1 to N. We take a random sample of these items and observe their sequence numbers; the problem is to estimate N from these observed numbers.

The problem can be approached using either frequentist inference or Bayesian inference, leading to different results. Estimating the population maximum based on a single sample yields divergent results, whereas estimation based on multiple samples is a practical estimation question whose answer is simple (especially in the frequentist setting) but not obvious (especially in the Bayesian setting).

The problem is named after its historical application by Allied forces in World War II to the estimation of the monthly rate of German tank production from very few data. This exploited the manufacturing practice of assigning and attaching ascending sequences of serial numbers to tank components (chassis, gearbox, engine, wheels), with some of the tanks eventually being captured in battle by Allied forces.