Though feathers have been found in only a few locations, it is possible that non-avian dinosaurs elsewhere in the world were also feathered. The lack of widespread fossil evidence for feathered non-avian dinosaurs may be because delicate features like skin and feathers are seldom preserved by fossilization and thus often absent from the fossil record. Those, along with multiple trackways, suggest that gregarious behavior was common in many early dinosaur species. Trackways of hundreds or even thousands of herbivores indicate that duck-billed may have moved in great herds, like the American bison or the African Springbok. Sauropod tracks document that these animals traveled in groups composed of several different species, at least in Oxfordshire, England, although there is no evidence for specific herd structures. Congregating into herds may have evolved for defense, for migratory purposes, or to provide protection for young.

• Many different types of bread and pasta were made, and there was a variation in cooking techniques and preparation.
• Risk of cancer appears to increase once the CD4 count is below 500/μL.
• Its recipes predominantly originate from Romagna and Tuscany, where he lived.
• In the southern continents that had made up the now-splitting supercontinent Gondwana, abelisaurids were the common theropods, and titanosaurian sauropods the common herbivores.
• Many species of mammals are infected by lentiviruses, which are characteristically responsible for long-duration illnesses with a long incubation period.

Soviet spending on the arms race and other Cold War commitments both caused and exacerbated deep-seated structural problems in the Soviet system, which experienced at least a decade of economic stagnation https://carlosfishandchips.co.uk/best-restaurants-in-london during the late Brezhnev years. The term new Cold War refers to the period of intensive reawakening of Cold War tensions and conflicts in the late 1970s and early 1980s. Tensions greatly increased between the major powers with both sides becoming more militant. Diggins says, «Reagan went all out to fight the second cold war, by supporting counterinsurgencies in the third world.» Cox says, «The intensity of this ‘second’ Cold War was as great as its duration was short.» In Chile, the Socialist Party candidate Salvador Allende won the presidential election of 1970, thereby becoming the first democratically elected Marxist to become president of a country in the Americas.

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Even with anti-retroviral treatment, over the long term HIV-infected people may experience neurocognitive disorders, osteoporosis, neuropathy, cancers, nephropathy, and cardiovascular disease. Some conditions, such as lipodystrophy, may be caused both by HIV and its treatment. The World Health Organization and the United States recommend antiretrovirals in people of all ages as soon as the diagnosis is made, regardless of CD4 count. Once treatment is begun, it is recommended that it is continued without breaks or «holidays». Many people are diagnosed only after treatment ideally should have begun.

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Certain denominations of Christianity, such as Anabaptists, use the term «ordinances» to refer to rites instituted by Jesus for Christians to observe. Seven ordinances have been taught in many Conservative Mennonite Anabaptist churches, which include «baptism, communion, footwashing, marriage, anointing with oil, the holy kiss, and the prayer covering.» Nontrinitarianism refers to theology that rejects the doctrine of the Trinity. Various nontrinitarian views, such as adoptionism or modalism, existed in early Christianity, leading to the disputes about Christology.

While declining to take a direct part in hostilities, the Soviet Union did provide the impetus for a successful Ethiopian counteroffensive to expel Somalia from the Ogaden. The counteroffensive was planned at the command level by Soviet advisers attached to the Ethiopian general staff, and bolstered by the delivery of millions of dollars’ of sophisticated Soviet arms. About 11,000 Cuban troops spearheaded the primary effort, after receiving a hasty training on some of the newly delivered Soviet weapons systems by East German instructors. Under President John F. Kennedy, US troop levels in Vietnam grew under the Military Assistance Advisory Group program from just under a thousand in 1959 to 16,000 in 1963. South Vietnamese President Ngo Dinh Diem’s heavy-handed crackdown on Buddhist monks in 1963 led the US to endorse a deadly military coup against Diem. The war escalated further in 1964 following the controversial Gulf of Tonkin incident, in which a US destroyer was alleged to have clashed with North Vietnamese fast attack craft.

In 2015, Cuba became the first country in the world to eradicate mother-to-child transmission of HIV. Consistent condom use reduces the risk of HIV transmission by approximately 80% over the long term. When condoms are used consistently by a couple in which one person is infected, the rate of HIV infection is less than 1% per year. There is some evidence to suggest that female condoms may provide an equivalent level of protection. Application of a vaginal gel containing tenofovir immediately before sex seems to reduce infection rates by approximately 40% among African women.

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There was a renewed interest in classical Greek philosophy, as well as an increase in literary output in vernacular Greek. Byzantine art and literature held a preeminent place in Europe, and the cultural impact of Byzantine art on the West during this period was enormous and of long-lasting significance. The later rise of Islam in North Africa reduced the size and numbers of Christian congregations, leaving in large numbers only the Coptic Church in Egypt, the Ethiopian Orthodox Tewahedo Church in the Horn of Africa and the Nubian Church in the Sudan . Constantine was also instrumental in the convocation of the First Council of Nicaea in 325, which sought to address Arianism and formulated the Nicene Creed, which is still used by in Catholicism, Eastern Orthodoxy, Lutheranism, Anglicanism, and many other Protestant churches. Nicaea was the first of a series of ecumenical councils, which formally defined critical elements of the theology of the Church, notably concerning Christology.