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
Pan-Islamism
Pan-Islamism (Arabic: الوحدة الإسلامية) is a political movement advocating the unity of Muslims under one Islamic country or state – often a caliphate – or an international organization with Islamic principles. Pan-Islamism was launched in Turkey at the end of the 19th century by Sultan Abdul-Hamid II for the purpose of combating the process of westernization and fostering the unification of Islam. Pan-Islamism differentiates itself from pan-nationalistic ideologies, for example Pan-Arabism, by seeing the ummah (Muslim community) as the focus of allegiance and mobilization, excluding ethnicity and race as primary unifying factors. The major leaders of the Pan-Islamist movement were the triad of Jamal al-Din Afghani (1839 - 1897), Muhammad Abduh (1849 - 1905) and Sayyid Rashid Rida (1865 - 1935); who were active in anti-colonial efforts to confront European penetration of Muslim lands. They also sought to strengthen Islamic unity, which they believed to be the strongest force to mobilize Muslims against imperial domination. Following Ibn Saud's conquest of Arabian Peninsula; pan-Islamism would be bolstered across the Islamic World. During the second half of the twentieth century; pan-Islamists would compete against secular nationalist ideologies in the Arab World such as Nasserism.
  • 4.0K
  • 15 Nov 2022
Topic Review
Chinese Information Operations and Information Warfare
Informatized warfare of China is the implementation of information warfare (IW) within the Chinese military. Laid out in the Chinese Defence White Paper of 2008, informatized warfare includes the utilization of information-based weapons and forces, including battlefield management systems, precision-strike capabilities, and technology-assisted command and control (C4ISR). However, some media and analyst report also uses the term to describe the political and espionage effort from the Chinese state.
  • 4.0K
  • 14 Oct 2022
Topic Review
Integration of Blockchain Technology with Cloud Computing
Blockchain technology’s desirable characteristics are decentralization, integrity, immutability, verification, fault tolerance, anonymity, audibility, and transparency. There are many benefits of blockchain technology concerning cloud computing, including those associated with business data handling, privacy, and encryption. 
  • 4.0K
  • 29 Nov 2022
Topic Review
Silver in Ophthalmology
The use of silver preparations in medicine is becoming increasingly popular. 
  • 4.0K
  • 15 Apr 2021
Topic Review
Natural Jute Fibers
The increasing trend of the use of synthetic products may result in an increased level of pollution affecting both the environment and living organisms. Therefore, from the sustainability point of view, natural, renewable and biodegradable materials are urgently needed to replace environmentally harmful synthetic materials. Jute, one of the natural fibers, plays a vital role in developing composite materials that showed potential in a variety of applications such as household, automotive and medical appliances.
  • 4.0K
  • 06 Apr 2022
Topic Review
Ch’orti’ Language
The Ch'orti' language (sometimes also Chorti) is a Mayan language, spoken by the indigenous Maya people who are also known as the Ch'orti' or Ch'orti' Maya. Ch'orti' is a direct descendant of the Classic Maya language in which many of the pre-Columbian inscriptions using the Maya script were written. This Classic Maya language is also attested in a number of inscriptions made in regions whose inhabitants most likely spoke a different Mayan language variant, including the ancestor of Yukatek Maya. Ch'orti' is the modern version of the ancient Mayan language Ch'olan (which was actively used and most popular between the years of A.D 250 and 850).
  • 4.0K
  • 15 Nov 2022
Topic Review
Techno-Economic and Life Cycle Cost Analysis
The techno-economic analysis (TEA) and the life cycle cost analysis (LCCA) are the most widely used approaches for modeling and calculating processes’ economic impacts. A simulation-based TEA is a cost-benefit analysis that simultaneously considers technical and economic factors. In addition, the method facilitates the development of the entire project and provides a systematic approach for examining the interrelationships between economic and technological aspects. When it comes to economic studies, it is intimately bonded with uncertainty. There are numerous uncertainty sources, classified in various ways. The uncertainty reflects “an inability to determine the precise value of one or more parameters affecting a system.” The variability refers to the different values a given parameter may take. This implies that a probability density function (PDF), for instance, can be employed to estimate and quantify the variability of a given parameter. The bias refers to “assumptions that skew an analysis in a certain direction while ignoring other legitimate alternatives, factors, or data.” 
  • 4.0K
  • 21 Oct 2022
Topic Review
Interslavic Language
Interslavic (Medžuslovjansky; Меджусловјанскы) is a zonal constructed language based on the Slavic languages. Its purpose is to facilitate communication between representatives of different Slavic nations, as well as to allow people who do not know any Slavic language to communicate with Slavs by being understandable to most, if not all Slavic speakers without them having to learn the language themselves. For Slavs it can fulfill an educational role as well. Interslavic can be classified as a semi-constructed language. It is essentially a modern continuation of Old Church Slavonic, but also draws on the various improvised language forms Slavs have been using for centuries to communicate with Slavs of other nationalities, for example in multi-Slavic environments and on the Internet, providing them with a scientific base. Thus, both grammar and vocabulary are based on the commonalities between the Slavic languages, and non-Slavic elements are avoided. Its main focus lies on instant understandability rather than easy learning, a balance typical for naturalistic (as opposed to schematic) languages. Precursors of Interslavic have a long history and predate constructed languages like Volapük and Esperanto by centuries: the oldest description, written by the Croatian priest Juraj Križanić, goes back to the years 1659–1666. In its current form, Interslavic was created in 2006 under the name Slovianski. In 2011, Slovianski underwent a thorough reform and merged with two other projects, simultaneously changing its name to "Interslavic", a name that was first proposed by the Czech Ignác Hošek in 1908. Interslavic can be written using the Latin and the Cyrillic alphabets.
  • 4.0K
  • 10 Nov 2022
Topic Review
Watson (Computer)
Watson is a question-answering computer system capable of answering questions posed in natural language, developed in IBM's DeepQA project by a research team led by principal investigator David Ferrucci. Watson was named after IBM's founder and first CEO, industrialist Thomas J. Watson. The computer system was initially developed to answer questions on the quiz show Jeopardy! and, in 2011, the Watson computer system competed on Jeopardy! against champions Brad Rutter and Ken Jennings, winning the first place prize of $1 million. In February 2013, IBM announced that Watson software system's first commercial application would be for utilization management decisions in lung cancer treatment at Memorial Sloan Kettering Cancer Center, New York City, in conjunction with WellPoint (now Anthem). In 2013, Manoj Saxena, IBM Watson's business chief said that 90% of nurses in the field who use Watson now follow its guidance.
  • 4.0K
  • 19 Oct 2022
Topic Review
Information Technology
Information technology (IT) is the use of computers to create, process, store, retrieve, and exchange all kinds of data and information. IT is typically used within the context of business operations as opposed to personal or entertainment technologies. IT forms part of information and communications technology (ICT). An information technology system (IT system) is generally an information system, a communications system, or, more specifically speaking, a computer system — including all hardware, software, and peripheral equipment — operated by a limited group of IT users. Although humans have been storing, retrieving, manipulating, and communicating information since the earliest writing systems were developed, the term information technology in its modern sense first appeared in a 1958 article published in the Harvard Business Review; authors Harold J. Leavitt and Thomas L. Whisler commented that "the new technology does not yet have a single established name. We shall call it information technology (IT)." Their definition consists of three categories: techniques for processing, the application of statistical and mathematical methods to decision-making, and the simulation of higher-order thinking through computer programs. The term is commonly used as a synonym for computers and computer networks, but it also encompasses other information distribution technologies such as television and telephones. Several products or services within an economy are associated with information technology, including computer hardware, software, electronics, semiconductors, internet, telecom equipment, and e-commerce.[lower-alpha 1] Based on the storage and processing technologies employed, it is possible to distinguish four distinct phases of IT development: pre-mechanical (3000 BC — 1450 AD), mechanical (1450—1840), electromechanical (1840—1940), and electronic (1940 to present). This article focuses on the most recent period (electronic). Information technology is also a branch of computer science, which can be defined as the overall study of procedure, structure, and the processing of various types of data. As this field continues to evolve across the world, the overall priority and importance has also grown, which is where we begin to see the introduction of computer science-related courses in K-12 education. However, concerns have been raised about this fact that most schools are lacking advanced-placement courses in this field.
  • 4.0K
  • 02 Nov 2022
Topic Review
Non-Coding RNAs in Plants
Plant transcriptomes encompass a large number of functional non-coding RNAs (ncRNAs), only some of which have protein-coding capacity. Since their initial discovery, ncRNAs have been classified into two broad categories based on their biogenesis and mechanisms of action, housekeeping ncRNAs and regulatory ncRNAs. With advances in RNA sequencing technology and computational methods, bioinformatics resources continue to emerge and update rapidly, including workflow for in silico ncRNA analysis, up-to-date platforms, databases, and tools dedicated to ncRNA identification and functional annotation.
  • 4.0K
  • 15 Apr 2022
Topic Review
Radix Polygoni Multiflori
Radix Polygoni Multiflori (RPM), the dry root of Polygonum multiflorum Thunb. (Fam. Polygonaceae), has been used as a tonic and an anti-aging remedy for centuries. However, its safe and effective application in clinical practice could be hindered by its liver injury potential and lack of investigations on its hepatotoxicity mechanism.
  • 4.0K
  • 07 Dec 2020
Topic Review
Sustainable Manufacturability of Archimedes Screw Turbines
Archimedes screw turbines are considered a new technology in small- or microscale hydropower. The Archimedes screw turbines is a hydroturbine that is geometrically modeled after Archimedean screws, which are machines historically used to pump water to higher elevations. Archimedes screw turbines are easy and practical to operate compared with other turbines. It is considered a fish-friendly turbine due to the geometric structure of the screw-shaped turbine that allows fish to swim in between them.
  • 4.0K
  • 30 Jan 2023
Topic Review
Jiles–Atherton Model
The Jiles–Atherton model of magnetic hysteresis was introduced in 1984 by David Jiles and D. L. Atherton. This is one of the most popular models of magnetic hysteresis. Its main advantage is the fact that this model enables connection with physical parameters of the magnetic material. Jiles–Atherton model enables calculation of minor and major hysteresis loops. The original Jiles–Atherton model is suitable only for isotropic materials. However, an extension of this model presented by Ramesh et al. and corrected by Szewczyk enables the modeling of anisotropic magnetic materials.
  • 4.0K
  • 02 Nov 2022
Topic Review
Iris (Anatomy)
In humans and most mammals and birds, the iris (plural: irides or irises) is a thin, circular structure in the eye, responsible for controlling the diameter and size of the pupil and thus the amount of light reaching the retina. Eye color is defined by that of the iris. In optical terms, the pupil is the eye's aperture, while the iris is the diaphragm.
  • 4.0K
  • 11 Oct 2022
Topic Review
Orrery
An orrery is a mechanical model of the Solar System that illustrates or predicts the relative positions and motions of the planets and moons, usually according to the heliocentric model. It may also represent the relative sizes of these bodies; however, since accurate scaling is often not practical due to the actual large ratio differences, a subdued approximation may be used instead. Though the Greeks had working planetaria, the first orrery that was a planetarium of the modern era was produced in 1704, and one was presented to Charles Boyle, 4th Earl of Orrery – hence the name. They are typically driven by a clockwork mechanism with a globe representing the Sun at the centre, and with a planet at the end of each of the arms.
  • 4.0K
  • 04 Nov 2022
Topic Review
Monotreme
Monotremes (/ˈmɒnətriːmz/) are prototherian mammals of the order Monotremata. They are one of the three groups of living mammals, along with placentals (Eutheria) and marsupials (Metatheria). Monotremes are typified by structural differences in their brains, jaws, digestive tract, reproductive tract, and other body parts, compared to the more common mammalian types. In addition, they lay eggs rather than bearing live young, but, like all mammals, the female monotremes nurse their young with milk. Monotremes have been considered members of Australosphenida, a clade that contains extinct mammals from the Jurassic and Cretaceous of Madagascar, South America, and Australia, though this is disputed. The only surviving examples of monotremes are all indigenous to Australia and New Guinea, although there is evidence that they were once more widespread, as Monotrematum is known from the Paleocene of South America. The extant monotreme species are the platypus and four species of echidnas. There is currently some debate regarding monotreme taxonomy. The name monotreme derives from the Greek words μονός (monós 'single') and τρῆμα (trêma 'hole'), referring to the cloaca.
  • 4.0K
  • 28 Nov 2022
Topic Review
Classification of Polyphenols
Polyphenols are the secondary metabolites synthesized by the plants as a part of defense machinery. Owing to their antioxidant, anti-inflammatory, anticancerous, antineoplastic, and immunomodulatory effects, natural polyphenols have been used for a long time to prevent and treat a variety of diseases. Polyphenols are plant secondary metabolites, with over 8000 polyphenolic compounds discovered to date, and have a variety of complicated structures. The most common and abundant polyphenols are phenolic acids, phenolic alcohols, flavonoids, lignans, and stiblins, which are available in the plant kingdom.
  • 4.0K
  • 04 May 2023
Topic Review
FireEye
FireEye is a privately held cybersecurity company headquartered in Milpitas, California. It has been involved in the detection and prevention of major cyber attacks. It provides hardware, software, and services to investigate cybersecurity attacks, protect against malicious software, and analyze IT security risks. FireEye was founded in 2004. Initially, it focused on developing virtual machines that would download and test internet traffic before transferring it to a corporate or government network. The company diversified over time, in part through acquisitions. In 2014, it acquired Mandiant, which provides incident response services following the identification of a security breach. FireEye went public in 2013. USAToday says FireEye "has been called in to investigate high-profile attacks against Target, JP Morgan Chase, Sony Pictures, Anthem and others".
  • 4.0K
  • 18 Oct 2022
Topic Review
Calcareous Tufa
The term calcareous tufa, or freshwater travertine, is widely used in the scientific literature to describe carbonate deposits precipitated from cool groundwaters of meteoric origin enriched in CO2 (carbon dioxide) by percolating through organic soils.
  • 4.0K
  • 11 May 2023
  • Page
  • of
  • 2794
Academic Video Service

Quick Survey

Encyclopedia MDPI is conducting a targeted survey to identify the specific barriers hindering efficient research. We invite you to spend 3 minutes defining the priorities for our next generation of structured knowledge tools.
Take Survey