Your browser does not fully support modern features. Please upgrade for a smoother experience.
Subject:
All Disciplines Arts & Humanities Biology & Life Sciences Business & Economics Chemistry & Materials Science Computer Science & Mathematics Engineering Environmental & Earth Sciences Medicine & Pharmacology Physical Sciences Public Health & Healthcare Social Sciences
Sort by:
Most Viewed Latest Alphabetical (A-Z) Alphabetical (Z-A)
Filter:
All Topic Review Biography Peer Reviewed Entry Video Entry
Topic Review
Song of Ascents
Song of Ascents is a title given to fifteen of the Psalms, 120–134 (119–133 in the Septuagint and the Vulgate), each starting with the superscription Shir Hama'aloth (שיר המעלות šîr ha-ma‘ălōṯ, meaning "Song of the Ascents"), or, in the case of Psalm 121, Shir Lama'aloth (שיר למעלות šîr la-ma‘ălōṯ, "a song regarding ascents"). They are also variously called Gradual Psalms, Fifteen Psalms, Songs of Degrees, Songs of Steps, songs for going up to worship or Pilgrim Songs. Four of them (Psalms 122, 124, 131, and 133) are linked in their ascriptions to David, and one (127) to Solomon. Three of them (Psalms 131, 133, and 134) have only three verses. The longest is Psalm 132 (18 verses).
  • 9.4K
  • 23 Nov 2022
Topic Review
Irreligion in India
Atheism and agnosticism have a long history in India and flourished within the Śramaṇa movement. Indian religions like Jainism, Hinduism and Buddhism consider atheism to be acceptable. India has produced some notable atheist politicians and social reformers. According to the 2011 Census of India, 99.76% of Indians identified with a religion while 0.24% did not state their religious identity. According to the 2012 WIN-Gallup Global Index of Religion and Atheism report, 81% of Indians were religious, 13% were non-religious, 3% were convinced atheists, and 3% were unsure or did not respond.
  • 9.4K
  • 09 Oct 2022
Topic Review
North–South Divide
The North–South divide is a socio-economic and political division of Earth popularized in the late 20th century and early 21st century. Generally, definitions of the Global North include the United States , Canada , almost all the European countries, Israel, Cyprus, Japan , Singapore, South Korea , Australia , and New Zealand. The Global South is made up of Sub-Saharan Africa, Latin America and the Caribbean, Pacific Islands, and the developing countries in Asia, including the Middle East. It is home to the BRIC countries (excluding Russia ): Brazil , India and China , which, along with Indonesia and Mexico, are the largest Southern states in terms of land area and population. The North is mostly correlated with the Western world and the First World, plus much of the Second World, while the South largely corresponds with the Third World and Eastern world. The two groups are often defined in terms of their differing levels of wealth, economic development, income inequality, democracy, and political and economic freedom, as defined by freedom indices. Nations in the North tend to be wealthier, less unequal and considered more democratic and to be developed countries who export technologically advanced manufactured products; Southern states are generally poorer developing countries with younger, more fragile democracies heavily dependent on primary sector exports and frequently share a history of past colonialism by Northern states. Nevertheless, the divide between the North and the South is often challenged and said to be increasingly incompatible with reality. In economic terms, as of the early 21st century, the North—with one quarter of the world population—controls four-fifths of the income earned anywhere in the world. 90% of the manufacturing industries are owned by and located in the North. Inversely, the South—with three quarters of the world population—has access to one-fifth of the world income. As nations become economically developed, they may become part of definitions the "North", regardless of geographical location; similarly, any nations that do not qualify for "developed" status are in effect deemed to be part of the "South".
  • 9.3K
  • 02 Dec 2022
Topic Review
New Literacies
New literacies generally are new forms of literacy made possible by digital technology developments, although new literacies do not necessarily have to involve use of digital technologies to be recognized as such. The term "new literacies" itself is relatively new within the field of literacy studies (the first documented mention of it in an academic article title dates to 1993 in a text by David Buckingham). Its definition remains open, with new literacies being conceptualized in different ways by different groups of scholars. For example, one group of scholars argues that literacy is now deictic, and see it as continually and rapidly changing as new technologies appear and new social practices for literacy emerge. (Leu, 2000). This group aims at developing a single, overarching theory to help explain new literacies (see, for example, Leu, O'Byrne, Zawilinski, McVerry, & Everett-Cacopardo, 2009; see also, below). This orientation towards new literacies is largely psycholinguistic in nature. Other groups of scholars follow a more sociocultural orientation that focuses on literacy as a social practice, which emphasizes the role of literacy with a range of socially patterned and goal-directed ways of getting things done in the world (see, for example, Gee & Hayes, 2012; Lankshear & Knobel, 2011; Kalantzis and Cope 2011). Accompanying the varying conceptualizations of new literacies, there are a range of terms used by different researchers when referring to new literacies, including 21st century literacies, internet literacies, digital literacies, new media literacies, multiliteracies, information literacy, ICT literacies, and computer literacy. In the Handbook of New Literacies Research, Coiro, Knobel, Lankshear, and Leu (2008) note that all these terms "are used to refer to phenomena we would see as falling broadly under a new literacies umbrella" (pg. 10). Commonly recognized examples of new literacies include such practices as instant messaging, blogging, maintaining a website, participating in online social networking spaces, creating and sharing music videos, podcasting and videocasting, photoshopping images and photo sharing, emailing, shopping online, digital storytelling, participating in online discussion lists, emailing and using online chat, conducting and collating online searches, reading, writing and commenting on fan fiction, collaborating on and writing encyclopedic wikis, processing and evaluating online information, creating and sharing digital mashups, etc. (see: Black, 2008; Coiro, 2003; Gee, 2007; Hunter, 2014; Jenkins, 2006; Kist, 2007; Lankshear & Knobel, 2006; Lessig, 2005; Leu, et al. 2004; Prensky, 2006).
  • 9.3K
  • 14 Oct 2022
Topic Review
Rheinmetall 120 Mm Gun
The Rheinmetall 120 mm gun is a smoothbore tank gun designed and produced by the West German Rheinmetall-DeTec AG company, developed in response to Soviet advances in armor technology and development of new armored threats. Production began in 1974, with the first version of the gun, known as the L/44 as it was 44 calibers long, used on the German Leopard 2 tank and soon produced under license for the American M1A1 Abrams and other tanks. The American version, the M256, uses a coil spring recoil system instead of a hydraulic system. The 120-millimeter (4.7 in) gun has a length of 5.28 meters (17.3 ft), and the gun system weighs approximately 3,317 kilograms (7,313 lb). By 1990, the L/44 was not considered powerful enough to deal with future Soviet armour, which stimulated an effort by Rheinmetall to develop a better main armament. This first involved a 140-millimeter (5.5 in) tank gun named Neue Panzerkanone 140 ("new tank gun 140"), but later turned into a compromise which led to the development of an advanced 120 mm gun, the L/55, based on the same internal geometry as the L/44 and installed in the same breech and mount. The L/55 is 1.32 meters (4.3 ft) longer, giving increased muzzle velocity to ammunition fired through it. As the L/55 retains the same barrel geometry, it can fire the same ammunition as the L/44. This gun was retrofitted into German and Dutch Leopard 2s, and chosen as the main gun of the Spanish Leopard 2E and the Greek Leopard 2HEL. It was tested on the British Challenger 2 as a potential replacement for its current weapon, the rifled L30 120 mm cannon. A variety of ammunition has been developed for use by tanks with guns based on Rheinmetall's original L/44 design. This includes a series of kinetic energy penetrators, such as the American M829 series, and high explosive anti-tank warheads. Recent ammunition includes a range of anti-personnel rounds and demolition munitions. The LAHAT, developed in Israel, is a gun-launched missile which has received interest from Germany and other Leopard 2 users, and is designed to defeat both land armour and combat helicopters. The Israelis also introduced a new anti-personnel munition which limits collateral damage by controlling the fragmentation of the projectile.
  • 9.3K
  • 27 Oct 2022
Topic Review
Security and Privacy in Cloud Computing
Advances in the usage of information and communication technologies (ICT) has given rise to the popularity and success of cloud computing. Cloud computing offers advantages and opportunities for business users to migrate and leverage the scalability of the pay-as-you-go price model. However, outsourcing information and business applications to the cloud or a third party raises security and privacy concerns, which have become critical in adopting cloud implementation and services. Researchers and affected organisations have proposed different security approaches in the literature to tackle the present security flaws. The literature also provides an extensive review of security and privacy issues in cloud computing. Unfortunately, the works provided in the literature lack the flexibility in mitigating multiple threats without conflicting with cloud security objectives. The literature has further focused on only highlighting security and privacy issues without providing adequate technical approaches to mitigate such security and privacy threats. Conversely, studies that offer technical solutions to security threats have failed to explain how such security threats exist.
  • 9.3K
  • 11 Jan 2022
Topic Review
Mental Distress
Mental distress (or psychological distress) is a term used, by some mental health practitioners and users of mental health services, to describe a range of symptoms and experiences of a person's internal life that are commonly held to be troubling, confusing or out of the ordinary. Mental distress can potentially lead to a change of behavior, affect a person's emotions in a negative way, and affect their relationships with the people around them. Certain traumatic life experiences such as: bereavement, stress, lack of sleep, use of drugs or alcohol, assault, abuse or accidents can induce mental distress. This may be something which resolves without further medical intervention, though people who endure such symptoms longer term are more likely to be diagnosed with mental illness. This definition is not without controversy as some mental health practitioners would use the terms mental distress and mental illness interchangeably. Some users of mental health services prefer the term mental distress in describing their experience as they feel it better captures that sense of the unique and personal nature of their experience, while also making it easier to relate to, since everyone experiences distress at different times. The term also fits better with the social model of disability.
  • 9.3K
  • 06 Oct 2022
Topic Review
Russian Financial Crisis (2014–2017)
The financial crisis in Russia in 2014–2015 was the result of the sharp devaluation of the Russian ruble beginning in the second half of 2014. A decline in confidence in the Russian economy caused investors to sell off their Russian assets, which led to a decline in the value of the Russian ruble and sparked fears of a Russian financial crisis. The lack of confidence in the Russian economy stemmed from at least two major sources. The first is the fall in the price of oil in 2014. Crude oil, a major export of Russia, declined in price by nearly 50% between its yearly high in June 2014 and 16 December 2014. The second is the result of international economic sanctions imposed on Russia following Russia's annexation of Crimea and the Russian military intervention in Ukraine. The crisis has affected the Russian economy, both consumers and companies, and regional financial markets, as well as Putin's ambitions regarding the Eurasian Economic Union. The Russian stock market in particular has experienced large declines, with a 30% drop in the RTS Index from the beginning of December through 16 December 2014. During the financial crisis, the economy turned to prevalent state ownership, with 60% of productive assets in the hands of the government. By 2016, the Russian economy rebounded with 0.3% GDP growth and was officially out of the recession. In January 2017, Russia had foreign currency reserves of around $391 billion, an inflation rate of 5.0% and interest rate of 10.0%.
  • 9.3K
  • 09 Nov 2022
Topic Review
Applications of Green Algae
       Green algae has been always renowned for its potent pharmacological and nutraceutical applications. Besides, anti-cancer, anti-bacterial and anti-oxidant properties, Recently published reports mentioning the potent anti-viral effects of green algae against the deadly virus SARS-CoV-2(COVID-19) has attracted the attention of researchers towards green algae.
  • 9.3K
  • 09 Oct 2020
Topic Review
New Energy Vehicles in China
This article will talk about the market of new energy vehicles in China and why the government supports it.The stock of new energy vehicles in China is the world's largest, with cumulative sales of 5.5 million units through December 2020. These figures include passenger cars and heavy-duty commercial vehicles such buses and sanitation trucks, and only accounts for vehicles manufactured in the country. Of these, there were 4.9 million new energy vehicles in use at the end of 2020, accounting for 1.75% of all vehicles in circulation in China. The Chinese government uses the term new energy vehicles (NEVs) to designate plug-in electric vehicles eligible for public subsidies, and includes only battery electric vehicles (BEVs), plug-in hybrid electric vehicles (PHEVs) and fuel cell electric vehicles (FCEV). Sales of new energy vehicles since 2011 passed the 500,000 unit milestone in March 2016, and the 1 million mark in early 2017, both, excluding imports. Cumulative sales of new energy passenger cars achieved the 500,000 unit milestone in September 2016, and 1 million by the end of 2017. Domestically produced passenger cars account for 96% of new energy car sales in China. (As of December 2020), China had the largest stock of highway legal plug-in passenger cars with over 4.5 million units, 42% of the global plug-in car fleet in use. China also dominates the plug-in light commercial vehicle and electric bus deployment, with its stock reaching over 500,000 buses in 2019, 98% of the global stock, and 247,500 electric light commercial vehicles, 65% of the global fleet. In addition, the country also leads sales of medium- and heavy duty electric trucks, with over 12,000 trucks sold, and nearly all battery electric. China has been the world's best-selling plug-in electric passenger car market for five years running, from 2015 to 2019, with annual sales rising from more than 207,000 plug-in passenger cars in 2015, to 579,000 in 2017, and just over  million units both in 2018 and 2019. A particular feature of the Chinese passenger plug-in market is the dominance of small entry level vehicles, in 2015 representing 87% of total pure electric car sales, while 96% of total plug-in hybrid car sales were in the compact segment. BYD Auto ended 2015 as the world's best selling manufacturer of highway legal light-duty plug-in electric vehicles, and for a second year running was the world's top selling plug-in car manufacturer with over 100,000 units delivered in 2016. During 2016 BYD became the world's all-time second largest plug-in electric passenger car manufacturer after the Renault-Nissan Alliance. The BYD Qin was the top selling new energy passenger car for two years in a row, 2014 and 2015. The BYD Tang was the best selling plug-in passenger car in 2016. Until December 2016, the Qin ranked as the all-time top selling plug-in electric car in the country with 68,655 units sold since its inception. The BAIC EC-Series all-electric city car was the top selling plug-in car in 2017, and with 78,079 units sold, it also listed as world's top selling plug-in car in 2017. The government's political support for the adoption of electric vehicles has four goals, to create a world-leading industry that would produce jobs and exports; energy security to reduce its oil dependence which comes from the Middle East; to reduce urban air pollution; and to reduce its carbon emissions. In June 2012 the State Council of China published a plan to develop the domestic energy-saving and new energy vehicle industry. The plan set a sales target of 500,000 new energy vehicles by 2015 and 5 million by 2020. As sales of new energy vehicles were slower than expected, in September 2013, the central government introduced a subsidy scheme providing a maximum of US$9,800 toward the purchase of an all-electric passenger vehicle and up to US$81,600 for an electric bus.
  • 9.3K
  • 01 Dec 2022
Topic Review
Parallelism Measurement Methods
At present, the parallelism error was evaluated by contact probe, laser interferometer, and  autocollimator, etc. Moreover, it can also be divided into contact method and non-contact method based on the measurement principle.
  • 9.3K
  • 29 Oct 2020
Topic Review
Risk-Acceptance Criteria
The utilization of risk acceptance criteria (RAC) can help a business to judge whether the risk level concerning any process involved in its working environment is acceptable or not, especially when the risk has a significant societal impact.
  • 9.3K
  • 28 Mar 2022
Topic Review
Emulsion Gel and Its Preparation
Emulsion gels are emulsion with a gel network structure and stable mechanical properties. Emulsion gel formation is considered a strategy for oil stabilization and structuring, presenting advantages such as transporting functional components and improving the sensory and physical product properties. 
  • 9.3K
  • 15 Jul 2022
Topic Review
Chlorophyll a
Chlorophyll a is a specific form of chlorophyll used in oxygenic photosynthesis. It absorbs most energy from wavelengths of violet-blue and orange-red light, and it is a poor absorber of green and near-green portions of the spectrum. Chlorophyll does not reflect light but chlorophyll-containing tissues appear green because green light, diffusively reflected by structures like cell walls, becomes enriched in the reflected light. This photosynthetic pigment is essential for photosynthesis in eukaryotes, cyanobacteria and prochlorophytes because of its role as primary electron donor in the electron transport chain. Chlorophyll a also transfers resonance energy in the antenna complex, ending in the reaction center where specific chlorophylls P680 and P700 are located.
  • 9.3K
  • 10 Oct 2022
Topic Review
List of Citadel Paints
This table contains a list of the Citadel paint range used for painting Citadel Miniatures, produced by Games Workshop. Citadel Miniatures are metal, resin, and plastic miniature gaming figures, accessories, and scenery for Games Workshop's range of tabletop wargames, such as their signature Warhammer Fantasy Battle, and Warhammer 40,000 games and The Lord of the Rings Strategy Battle Game.
  • 9.3K
  • 25 Nov 2022
Topic Review
Unbiunium
Check temperatures Ubu: no input for C, K, F. Check temperatures Ubu: no input for C, K, F. Unbiunium, also known as eka-actinium or simply element 121, is the hypothetical chemical element with symbol Ubu and atomic number 121. Unbiunium and Ubu are the temporary systematic IUPAC name and symbol respectively, until a permanent name is decided upon. In the periodic table of the elements, it is expected to be the first of the superactinides, and the third element in the eighth period: analogously to lanthanum and actinium, it could be considered the fifth member of group 3 and the first member of the fifth-row transition metals. It has attracted attention because of some predictions that it may be in the island of stability, although newer calculations expect the island to actually occur at a slightly lower atomic number, closer to copernicium and flerovium. Unbiunium has not yet been synthesized. Nevertheless, because it is only three elements away from the heaviest known element, oganesson (element 118), its synthesis may come in the near future; it is expected to be one of the last few reachable elements with current technology, and the limit may be anywhere between element 120 and 124. It will also likely be far more difficult to synthesize than the elements known so far up to 118, and still more difficult than elements 119 and 120. The team at RIKEN in Japan has plans to attempt the synthesis of element 121 in the future after its attempts on elements 119 and 120. The position of unbiunium in the periodic table suggests that it would have similar properties to its lighter congeners, scandium, yttrium, lanthanum, and actinium; however, relativistic effects may cause some of its properties to differ from those expected from a straight application of periodic trends. For example, unbiunium is expected to have a s2p valence electron configuration instead of the s2d of its lighter congeners in group 3, but this is not expected to significantly affect its chemistry, which is predicted to be that of a normal group 3 element; it would on the other hand significantly lower its first ionisation energy beyond what would be expected from periodic trends.
  • 9.3K
  • 25 Oct 2022
Topic Review
ChatGPT Training Process
According to numerous reports, ChatGPT represents a significant breakthrough in the field of artificial intelligence. ChatGPT is a pre-trained AI model designed to engage in natural language conversations, utilizing sophisticated techniques from Natural Language Processing (NLP), Supervised Learning, and Reinforcement Learning to comprehend and generate text comparable to human-generated text.
  • 9.3K
  • 29 May 2023
Topic Review
Cereal and Confectionary Packaging
Packaging is strongly associated with food, allowing, amongst other functions, containment, protection, and transportation of contents, and thus can be seen as an integral part of food systems. Nevertheless, nowadays it is the subject of intense debates and even stricter legal requirements, mainly due to massive circularity gaps including, for example, unsatisfactory end-of-life scenarios such as limited recyclability or (marine) litter.
  • 9.3K
  • 29 Mar 2022
Topic Review
Fluid Catalytic Cracking Catalyst Regeneration Intensification Technologies
Fluid catalytic cracking (FCC) is the workhorse of modern crude oil refinery. Its regenerator component plays a critical role in optimizing the overall profitability by efficiently restoring the catalyst activity and enhancing the heat balance in the riser reactor. Improvement in the device metallurgy and process operations have enabled industrial regenerators to operate at high temperatures with a better coke burning rate and longer operating cycle. Today, the carbon content of regenerated catalyst has drastically reduced to less than 0.1 wt.%.
  • 9.3K
  • 15 Mar 2022
Topic Review
Old Aramaic Language
Old Aramaic refers to the earliest stage of the Aramaic language, considered to give way to Middle Aramaic by the 3rd century (a conventional date is the rise of the Sasanian Empire in 224 AD). Emerging as the language of the city-states of the Arameans in the Levant in the Early Iron Age, Old Aramaic was adopted as a lingua franca, and in this role was inherited for official use by the Achaemenid Empire during classical antiquity. After the fall of the Achaemenid Empire, local vernaculars became increasingly prominent, fanning the divergence of an Aramaic dialect continuum and the development of differing written standards.
  • 9.3K
  • 21 Oct 2022
  • Page
  • of
  • 2718
Featured Entry Collections
>>

Featured Books

>>
Encyclopedia of Digital Society, Industry 5.0 and Smart City
Encyclopedia of Engineering
Encyclopedia of Social Sciences
Encyclopedia of COVID-19
Academic Video Service
Feedback