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Hace 3 días · PHP is a general-purpose scripting language that is especially suited to server-side web development, in which case PHP generally runs on a web server. Any PHP code in a requested file is executed by the PHP runtime, usually to create dynamic web page content or dynamic images used on websites or elsewhere. [282]
Hace 1 día · Visna-maedi virus. The human immunodeficiency viruses ( HIV) are two species of Lentivirus (a subgroup of retrovirus) that infect humans. Over time, they cause acquired immunodeficiency syndrome (AIDS), [1] [2] a condition in which progressive failure of the immune system allows life-threatening opportunistic infections and cancers to thrive. [3]
23 de may. de 2024 · Science is a rigorous, systematic endeavor that builds and organizes knowledge in the form of testable explanations and predictions about the world. Modern science is typically divided into three major branches: the natural sciences (e.g., physics, chemistry, and biology), which study the physical world; the social sciences (e.g., economics, psychology, and sociology), which study individuals ...
Hace 1 día · Why is the Sun's corona so much hotter than the Sun's surface? (more unsolved problems in astronomy) The temperature of the photosphere is approximately 6,000 K, whereas the temperature of the corona reaches 1,000,000–2,000,000 K. The high temperature of the corona shows that it is heated by something other than direct heat conduction from the photosphere. It is thought that the energy ...
Hace 1 día · The English word Christmas is a shortened form of 'Christ's Mass'. The word is recorded as Crīstesmæsse in 1038 and Cristes-messe in 1131. Crīst (genitive Crīstes) is from the Greek Χριστός (Khrīstos, 'Christ'), a translation of the Hebrew מָשִׁיחַ (Māšîaḥ, 'Messiah'), meaning 'anointed'; and mæsse is from the Latin missa, the celebration of the Eucharist.
Hace 1 día · Opiz, nom. illeg. Nomocharis Franch. Lilium ( / ˈlɪliəm / LIL-ee-əm) [3] is a genus of herbaceous flowering plants growing from bulbs, all with large and often prominent flowers. They are the true lilies. Lilies are a group of flowering plants which are important in culture and literature in much of the world.
21 de may. de 2024 · Asthma is a long-term inflammatory disease of the airways of the lungs. [5] It is characterized by variable and recurring symptoms, reversible airflow obstruction, and easily triggered bronchospasms. [10] [11] Symptoms include episodes of wheezing, coughing, chest tightness, and shortness of breath. [4] These may occur a few times a day or a ...
