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π Osama bin Laden's hideout compound
Osama bin Laden's compound, known locally as the Waziristan Haveli (Urdu: ΩΨ²ΫΨ±Ψ³ΨͺΨ§Ω ΨΩΫΩΫβ), was an upper-class mansion that was used as a safe house for militant Islamist Osama bin Laden, who was shot and killed there by U.S. forces on May 2, 2011. The compound was located at the end of a dirt road 1,300 metres (0.8 mi) southwest of the Pakistan Military Academy in Bilal Town, Abbottabad, Pakistan, a suburb housing many retired military officers. Bin Laden was reported to have evaded capture by living in a section of the house for at least five years, having no Internet or phone connection, and hiding away from the public, who were allegedly unaware of his presence.
Completed in 2005, the main buildings in the compound lay on a 3,500-square-metre (38,000Β sqΒ ft) plot of land, much larger than those of nearby houses. Its perimeter was 3.7- to 5.5-metre (12 to 18 ft) concrete walls topped with barbed wire, and there were two security gates. The compound had very few windows. Little more than five years old, the compound's ramshackle buildings were badly in need of repainting. The grounds contained a well-kept vegetable garden, rabbits, some 100 chickens and a cow. The house itself did not stand out architecturally from others in the neighbourhood, except for its size and exaggerated security measures; for example, the third-floor balcony had a 2-metre (7 ft) privacy wall. Photographs inside the house showed excessive clutter and modest furnishings. After the American mission, there was extensive interest in and reporting about the compound and its design. To date, the Pakistani government has not responded to any allegations as to who had built the structure.
After the September 11 attacks in 2001, the U.S. searched for bin Laden for nearly 10 years. By tracking his courier Abu Ahmed al-Kuwaiti to the compound, U.S. officials surmised that bin Laden was hiding there. During a raid on May 2, 2011, 24 members of the United States Naval Special Warfare Development Group arrived by helicopter, breached a wall using explosives, and entered the compound in search of bin Laden. After the operation was completed and bin Laden was killed, Pakistan demolished the structure in February 2012.
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- "Osama bin Laden's hideout compound" | 2011-05-04 | 20 Upvotes 2 Comments
π 2020 United States Postal Service Crisis
The 2020 United States Postal Service crisis is a series of events that have caused backlogs and delays in the delivery of mail by the United States Postal Service (USPS). The crisis stems primarily from changes implemented by Postmaster General Louis DeJoy shortly after taking office in June 2020. The delays have had substantial legal, political, economic, and health repercussions.
There is controversy and speculation about whether the delays are unintended consequences of restructuring operations, or if they were intentionally created for political and/or financial gain. DeJoy has supported and donated to President Donald Trump, who has publicly linked his opposition to emergency funding for the Postal Service to his desire to restrict voting by mail in the 2020 elections.
On August 18, 2020, under heavy political and legal pressure, DeJoy announced that he would be "suspending" the policy changes until after the November 2020 election. He testified to the Senate on August 21, and to the House of Representatives on August 24, concerning the changes and their effects.
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- "2020 United States Postal Service Crisis" | 2020-12-20 | 29 Upvotes 2 Comments
π Jewish Exodus from Arab and Muslim Countries
The Jewish exodus from Arab and Muslim countries, or Jewish exodus from Arab countries, was the departure, flight, expulsion, evacuation and migration of 850,000 Jews, primarily of Sephardi and Mizrahi background, from Arab countries and the Muslim world, mainly from 1948 to the early 1970s. The last major migration wave took place from Iran in 1979β80, as a consequence of the Iranian Revolution.
A number of small-scale Jewish exoduses began in many Middle Eastern countries early in the 20th century with the only substantial aliyah (immigration to the area today known as Israel) coming from Yemen and Syria. Very few Jews from Muslim countries immigrated during the period of Mandatory Palestine. Prior to the creation of Israel in 1948, approximately 800,000 Jews were living in lands that now make up the Arab world. Of these, just under two-thirds lived in the French and Italian-controlled North Africa, 15β20% in the Kingdom of Iraq, approximately 10% in the Kingdom of Egypt and approximately 7% in the Kingdom of Yemen. A further 200,000 lived in Pahlavi Iran and the Republic of Turkey.
The first large-scale exoduses took place in the late 1940s and early 1950s, primarily from Iraq, Yemen and Libya. In these cases over 90% of the Jewish population left, despite the necessity of leaving their property behind. Two hundred and sixty thousand Jews from Arab countries immigrated to Israel between 1948 and 1951, accounting for 56% of the total immigration to the newly founded state; this was the product of a policy change in favour of mass immigration focused on Jews from Arab and Muslim countries. The Israeli government's policy to accommodate 600,000 immigrants over four years, doubling the existing Jewish population, encountered mixed reactions in the Knesset; there were those within the Jewish Agency and government who opposed promoting a large-scale emigration movement among Jews whose lives were not in danger.
Later waves peaked at different times in different regions over the subsequent decades. The peak of the exodus from Egypt occurred in 1956 following the Suez Crisis. The exodus from the other North African Arab countries peaked in the 1960s. Lebanon was the only Arab country to see a temporary increase in its Jewish population during this period, due to an influx of Jews from other Arab countries, although by the mid-1970s the Jewish community of Lebanon had also dwindled. Six hundred thousand Jews from Arab and Muslim countries had reached Israel by 1972. In total, of the 900,000 Jews who left Arab and other Muslim countries, 600,000 settled in the new state of Israel, and 300,000 migrated to France and the United States. The descendants of the Jewish immigrants from the region, known as Mizrahi Jews ("Eastern Jews") and Sephardic Jews ("Spanish Jews"), currently constitute more than half of the total population of Israel, partially as a result of their higher fertility rate. In 2009, only 26,000 Jews remained in Arab countries and Iran. and 26,000 in Turkey.
The reasons for the exoduses are manifold, including push factors, such as persecution, antisemitism, political instability, poverty and expulsion, together with pull factors, such as the desire to fulfill Zionist yearnings or find a better economic status and a secure home in Europe or the Americas. The history of the exodus has been politicized, given its proposed relevance to the historical narrative of the ArabβIsraeli conflict. When presenting the history, those who view the Jewish exodus as analogous to the 1948 Palestinian exodus generally emphasize the push factors and consider those who left as refugees, while those who do not, emphasize the pull factors and consider them willing immigrants.
π Three-Domain System
The three-domain system is a biological classification introduced by Carl Woese et al. in 1990 that divides cellular life forms into archaea, bacteria, and eukaryote domains. In particular, it emphasizes the separation of prokaryotes into two groups, originally called Eubacteria (now Bacteria) and Archaebacteria (now Archaea). Woese argued that, on the basis of differences in 16S rRNA genes, these two groups and the eukaryotes each arose separately from an ancestor with poorly developed genetic machinery, often called a progenote. To reflect these primary lines of descent, he treated each as a domain, divided into several different kingdoms. Woese initially used the term "kingdom" to refer to the three primary phylogenic groupings, and this nomenclature was widely used until the term "domain" was adopted in 1990.
Parts of the three-domain theory have been fiercly challenged by scientists such as Radhey S. Gupta, who argues that the primary division within prokaryotes should be between those surrounded by a single membrane, and those with two membranes.
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- "Three-Domain System" | 2020-03-28 | 65 Upvotes 16 Comments
π Simula β the first object-oriented language
Simula is the name of two simulation programming languages, Simula I and Simula 67, developed in the 1960s at the Norwegian Computing Center in Oslo, by Ole-Johan Dahl and Kristen Nygaard. Syntactically, it is a fairly faithful superset of ALGOL 60, also influenced by the design of Simscript.
Simula 67 introduced objects, classes, inheritance and subclasses, virtual procedures, coroutines, and discrete event simulation, and features garbage collection. Also other forms of subtyping (besides inheriting subclasses) were introduced in Simula derivatives.
Simula is considered the first object-oriented programming language. As its name suggests, the first Simula version by 1962 was designed for doing simulations; Simula 67 though was designed to be a general-purpose programming language and provided the framework for many of the features of object-oriented languages today.
Simula has been used in a wide range of applications such as simulating very-large-scale integration (VLSI) designs, process modeling, communication protocols, algorithms, and other applications such as typesetting, computer graphics, and education. The influence of Simula is often understated, and Simula-type objects are reimplemented in C++, Object Pascal, Java, C#, and many other languages. Computer scientists such as Bjarne Stroustrup, creator of C++, and James Gosling, creator of Java, have acknowledged Simula as a major influence.
π Young's Lattice
In mathematics, Young's lattice is a partially ordered set and a lattice that is formed by all integer partitions. It is named after Alfred Young, who, in a series of papers On quantitative substitutional analysis, developed representation theory of the symmetric group. In Young's theory, the objects now called Young diagrams and the partial order on them played a key, even decisive, role. Young's lattice prominently figures in algebraic combinatorics, forming the simplest example of a differential poset in the sense of Stanley (1988). It is also closely connected with the crystal bases for affine Lie algebras.
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- "Young's Lattice" | 2021-12-07 | 42 Upvotes 15 Comments
π Phone Cloning
Phone cloning is the copying of identity from one cellular device to another.
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- "Phone Cloning" | 2020-04-18 | 35 Upvotes 18 Comments
π Correction Girls
Correction girls was a term describing women who were forcibly shipped from France to its colonies in America as brides for its colonists during the early 18th century.
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- "Correction Girls" | 2023-01-29 | 59 Upvotes 14 Comments
π Oi (Interjection)
Oi is an interjection used in various varieties of the English language, particularly Australian English, British English, Indian English, Irish English, New Zealand English, and South African English, as well as non-English languages such as Chinese, Tagalog, Tamil, Hindi/Urdu, Japanese, and Portuguese to get the attention of another person or to express surprise or disapproval. It is sometimes used in Canadian English and very rarely in American English. The word is also common in the Indian subcontinent, where it has varied pronunciations of "O-ee" and "O-ye".
"Oi" has been particularly associated with working class and Cockney speech. It is effectively a local pronunciation of "hoy" (see H-dropping), an older expression. A study of the Cockney dialect in the 1950s found that whether it was being used to call attention or as a challenge depended on its tone and abruptness. The study's author noted that the expression is "jaunty and self-assertive" as well as "intensely cockney".
A poll of non-English speakers by the British Council in 2004 found that "oi" was considered the 61st most beautiful word in the English language. A spokesman commented that "Oi is not a word that I would've thought turned up in English manuals all that often." "Oi" was added to the list of acceptable words in US Scrabble in 2006.
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- "Oi (Interjection)" | 2023-12-17 | 43 Upvotes 34 Comments
π Guanxi
Guanxi (simplified Chinese: ε ³η³»; traditional Chinese: ιδΏ; pinyin: guΔnxi) defines the fundamental dynamic in personalized social networks of power, and is a crucial system of beliefs in Chinese culture. In Western media, the pinyin romanization of this Chinese word is becoming more widely used instead of the two common translations of itβ"connections" and "relationships"βas neither of those terms sufficiently reflects the wide cultural implications that guanxi describes.
Guanxi plays a fundamental role within the Confucian doctrine, which sees the individual as part of a community and a set of family, hierarchical and friendly relationships. In particular, there is a focus on tacit mutual commitments, reciprocity, and trust, which are the grounds of guanxi and guanxi networks.
Guanxi also has a major influence on the management of businesses based in Mainland China, and businesses owned by Overseas Chinese in Southeast Asia (the latter is known as the bamboo network).
Closely related concepts include that of ganqing, a measure which reflects the depth of feeling within an interpersonal relationship, renqing (δΊΊζ rΓ©nqΓng/jen-ch'ing), the moral obligation to maintain a relationship, and the idea of "face" (ι’ε, miΓ nzi/mien-tzu), which refers to social status, propriety, prestige, or a combination of all three. Other related concepts include wu-lune, which supports the idea of a long term, developing relationship between a business and its client, and yi-ren and ren, which respectively support reciprocity and empathy.