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Topic Review
Stock Market Prediction
Stock Market Prediction (SMP) is an example of time-series forecasting that promptly examines previous data and estimates future data values. Financial market prediction has been a matter of worry for analysts in different disciplines, including economics, mathematics, material science, and computer science. Driving profits from the trading of stocks is an important factor for the prediction of the stock market.
  • 5.8K
  • 09 Dec 2021
Biography
B. F. Skinner
Burrhus Frederic Skinner (March 20, 1904 – August 18, 1990) was an American psychologist, behaviorist, author, inventor, and social philosopher.[1][2][3][4] He was a professor of psychology at Harvard University from 1958 until his retirement in 1974.[5] Considering free will to be an illusion, Skinner saw human action as dependent on consequences of previous actions, a theory he would articu
  • 5.8K
  • 17 Nov 2022
Topic Review
Weak Interaction
In nuclear physics and particle physics, the weak interaction, which is also often called the weak force or weak nuclear force, is one of the four known fundamental interactions, with the others being electromagnetism, the strong interaction, and gravitation. It is the mechanism of interaction between subatomic particles that is responsible for the radioactive decay of atoms. The weak interaction participates in nuclear fission, and the theory describing its behaviour and effects is sometimes called quantum flavourdynamics (QFD). However, the term QFD is rarely used, because the weak force is better understood by electroweak theory (EWT). The effective range of the weak force is limited to subatomic distances, and is less than the diameter of a proton.
  • 5.8K
  • 27 Oct 2022
Topic Review
Cryptography
Cryptography, or cryptology (from Ancient Greek: "hidden, secret"; and γράφειν graphein, "to write", or -λογία -logia, "study", respectively), is the practice and study of techniques for secure communication in the presence of adversarial behavior. More generally, cryptography is about constructing and analyzing protocols that prevent third parties or the public from reading private messages. Modern cryptography exists at the intersection of the disciplines of mathematics, computer science, information security, electrical engineering, digital signal processing, physics, and others. Core concepts related to information security (data confidentiality, data integrity, authentication, and non-repudiation) are also central to cryptography. Practical applications of cryptography include electronic commerce, chip-based payment cards, digital currencies, computer passwords, and military communications. Cryptography prior to the modern age was effectively synonymous with encryption, converting readable information (plaintext) to unintelligible nonsense text (ciphertext), which can only be read by reversing the process (decryption). The sender of an encrypted (coded) message shares the decryption (decoding) technique only with intended recipients to preclude access from adversaries. The cryptography literature often uses the names "Alice" (or "A") for the sender, "Bob" (or "B") for the intended recipient, and "Eve" (or "E") for the eavesdropping adversary. Since the development of rotor cipher machines in World War I and the advent of computers in World War II, cryptography methods have become increasingly complex and their applications more varied. Modern cryptography is heavily based on mathematical theory and computer science practice; cryptographic algorithms are designed around computational hardness assumptions, making such algorithms hard to break in actual practice by any adversary. While it is theoretically possible to break into a well-designed system, it is infeasible in actual practice to do so. Such schemes, if well designed, are therefore termed "computationally secure"; theoretical advances (e.g., improvements in integer factorization algorithms) and faster computing technology require these designs to be continually reevaluated, and if necessary, adapted. Information-theoretically secure schemes that cannot be broken even with unlimited computing power, such as the one-time pad, are much more difficult to use in practice than the best theoretically breakable, but computationally secure, schemes. The growth of cryptographic technology has raised a number of legal issues in the Information Age. Cryptography's potential for use as a tool for espionage and sedition has led many governments to classify it as a weapon and to limit or even prohibit its use and export. In some jurisdictions where the use of cryptography is legal, laws permit investigators to compel the disclosure of encryption keys for documents relevant to an investigation. Cryptography also plays a major role in digital rights management and copyright infringement disputes in regard to digital media.
  • 5.8K
  • 28 Nov 2022
Topic Review
Mettā
Mettā (Pali) or maitrī (Sanskrit) means benevolence, loving-kindness, friendliness, amity, good will, and active interest in others. It is the first of the four sublime states (Brahmavihāras) and one of the ten pāramīs of the Theravāda school of Buddhism. The cultivation of benevolence (mettā bhāvanā) is a popular form of meditation in Buddhism. It is a part of the four immeasurables in Brahmavihara (divine abidings) meditation. Metta as 'compassion meditation' is often practiced in Asia by broadcast chanting, wherein monks chant for the laity. The compassion and universal loving-kindness concept of Metta is discussed in the Metta Sutta of Buddhism, and is also found in the ancient and medieval texts of Hinduism and Jainism as Metta or Maitri. Small sample studies on the potential of loving-kindness meditation approach on patients suggest potential benefits. However, peer reviews question the quality and sample size of these studies, then suggest caution.
  • 5.8K
  • 28 Sep 2022
Topic Review
Medical Model of Autism
The medical model of autism encourages continual research into the causes of autism, with the primary goal of finding a way to prevent or cure autism. This is a subset of the medical model of disability in general. The model advocates a variety of goals including increased awareness of autism prevalence, earlier and more accessible diagnosis, elimination of autistic behaviors through therapies such as applied behavior analysis, identification of environmental factors that may cause autism in infancy, and identification of a genetic marker to allow testing for autism in utero. Advocates for the medical model believe that autism is a disorder caused by genetic defects or environmental harm, that the value of talents attributed to autism does not outweigh the deficits, and that most autistic people would be better off if they were not autistic. For instance, then-president Liz Feld of Autism Speaks stated that one-third of people with autism also have a seizure disorder, half suffer serious digestive complications, 49 percent wander, and more than 30 percent are nonverbal. Many organizations subscribe to the medical model, most of which have non-profit status. The autism rights and neurodiversity movements are critics of the medical view.
  • 5.8K
  • 16 Nov 2022
Topic Review
Bitcoin Core
Bitcoin Core is free and open-source software that serves as a bitcoin node (the set of which form the bitcoin network) and provides a bitcoin wallet which fully verifies payments. It is considered to be bitcoin's reference implementation. Initially, the software was published by Satoshi Nakamoto under the name "Bitcoin", and later renamed to "Bitcoin Core" to distinguish it from the network. For this reason, it is also known as the Satoshi client. The MIT Digital Currency Initiative funds some of the development of Bitcoin Core. The project also maintains the cryptography library libsecp256k1.
  • 5.8K
  • 09 Nov 2022
Topic Review
Floating Island
A floating island is a mass of floating aquatic plants, mud, and peat ranging in thickness from several centimeters to a few meters. Floating islands are a common natural phenomenon that are found in many parts of the world. They exist less commonly as an artificial phenomenon. Floating islands are generally found on marshlands, lakes, and similar wetland locations, and can be many hectares in size.
  • 5.8K
  • 21 Oct 2022
Topic Review
Theosophical Society
The Theosophical Society was an organization formed in the United States in 1875 by Helena Blavatsky to advance Theosophy. The original organization, after splits and realignments, (As of 2011) has several successors. Following the death of Blavatsky, competition within the Society between factions emerged, particularly among founding members and the organisation split between the Theosophical Society Adyar (Olcott-Besant) and the Theosophical Society Pasadena (Judge). The former group, headquartered in India , is the most widespread international group holding the name "Theosophical Society" today.
  • 5.8K
  • 29 Nov 2022
Topic Review
Overall Equipment Effectiveness
Overall equipment effectiveness (OEE) is a key performance indicator used to measure equipment productivity. The purpose of this study is to review and analyze the evolution of OEE, present modifications made over the original model and identify future development areas.
  • 5.8K
  • 12 Apr 2021
Topic Review
Gauss's Lemma (Polynomial)
In algebra, Gauss's lemma, named after Carl Friedrich Gauss, is a statement about polynomials over the integers, or, more generally, over a unique factorization domain (that is, a ring that has a unique factorization property similar to the fundamental theorem of arithmetic). Gauss's lemma underlies all the theory of factorization and greatest common divisors of such polynomials. Gauss's lemma asserts that the product of two primitive polynomials is primitive (a polynomial with integer coefficients is primitive if it has 1 as a greatest common divisor of its coefficients). A corollary of Gauss's lemma, sometimes also called Gauss's lemma, is that a primitive polynomial is irreducible over the integers if and only if it is irreducible over the rational numbers. More generally, a primitive polynomial has the same complete factorization over the integers and over the rational numbers. In the case of coefficients in a unique factorization domain R, "rational numbers" must be replaced by "field of fractions of R". This implies that, if R is either a field, the ring of integers, or a unique factorization domain, then every polynomial ring (in one or several indeterminates) over R is a unique factorization domain. Another consequence is that factorization and greatest common divisor computation of polynomials with integers or rational coefficients may be reduced to similar computations on integers and primitive polynomials. This is systematically used (explicitly or implicitly) in all implemented algorithms (see Polynomial greatest common divisor and Factorization of polynomials). Gauss's lemma, and all its consequences that do not involve the existence of a complete factorization remain true over any GCD domain (an integral domain over which greatest common divisors exist). In particular, a polynomial ring over a GCD domain is also a GCD domain. If one calls primitive a polynomial such that the coefficients generate the unit ideal, Gauss's lemma is true over every commutative ring. However, some care must be taken, when using this definition of primitive, as, over a unique factorization domain that is not a principal ideal domain, there are polynomials that are primitive in the above sense and not primitive in this new sense.
  • 5.8K
  • 28 Nov 2022
Topic Review
Folic Acid, Vitamin B12 and Chronic Kidney Disease
Patients affected by chronic kidney disease (CKD) or end-stage renal disease (ESRD) experience a huge cardiovascular risk and cardiovascular events represent the leading causes of death. Folic acid and vitamin B12 could not only be mere cofactors in the homocysteine metabolism; they may have a direct action in determining tissue damage and cardiovascular risk. 
  • 5.8K
  • 15 Oct 2021
Topic Review
Alchemy and Chemistry in Medieval Islam
Alchemy and chemistry in Islam refers to the study of both traditional alchemy and early practical chemistry (the early chemical investigation of nature in general) by scholars in the medieval Islamic world. The word alchemy was derived from the Arabic word كيمياء or kīmiyāʾ. and may ultimately derive from the ancient Egyptian word kemi, meaning black. After the fall of the Western Roman Empire, the focus of alchemical development moved to the Caliphate and the Islamic civilization. Much more is known about Islamic alchemy as it was better documented; most of the earlier writings that have come down through the years were preserved as Arabic translations.
  • 5.8K
  • 24 Nov 2022
Topic Review
Catalyst Design via Colloidal Synthesis
Supported nanoparticles are commonly applied in heterogeneous catalysis. The catalytic performance of these solid catalysts is, for a given support, dependent on the nanoparticle size, shape, and composition, thus necessitating synthesis techniques that allow for preparing these materials with fine control over those properties. Such control can be exploited to deconvolute their effects on the catalyst’s performance, which is the basis for knowledge-driven catalyst design. In this regard, bottom-up synthesis procedures based on colloidal chemistry have proven successful in achieving the desired level of control for a variety of fundamental studies. This article aims to give an overview of recent progress made in this synthesis technique for the application of controlled catalytic materials in gas-phase catalysis. The focus goes to mono- and bimetallic materials, as well as to recent efforts in enhancing their performance by embedding colloidal templates in porous oxide phases.
  • 5.8K
  • 12 May 2021
Topic Review
Concept Learning
Concept learning, also known as category learning, concept attainment, and concept formation, is defined by Bruner, Goodnow, & Austin (1967) as "the search for and listing of attributes that can be used to distinguish exemplars from non exemplars of various categories". More simply put, concepts are the mental categories that help us classify objects, events, or ideas, building on the understanding that each object, event, or idea has a set of common relevant features. Thus, concept learning is a strategy which requires a learner to compare and contrast groups or categories that contain concept-relevant features with groups or categories that do not contain concept-relevant features. In a concept learning task, a human or machine learner is trained to classify objects by being shown a set of example objects along with their class labels. The learner simplifies what has been observed by condensing it in the form of an example. This simplified version of what has been learned is then applied to future examples. Concept learning may be simple or complex because learning takes place over many areas. When a concept is difficult, it is less likely that the learner will be able to simplify, and therefore will be less likely to learn. Colloquially, the task is known as learning from examples. Most theories of concept learning are based on the storage of exemplars and avoid summarization or overt abstraction of any kind.
  • 5.8K
  • 17 Oct 2022
Topic Review Peer Reviewed
The New Sociology of Religion
The new sociology of religion differs from the classical and mainstream sociology, which was in force until the end of the last century, in that it no longer considers religion only as an independent variable, but places it together with other dependent variables, so that it becomes possible to investigate new themes, especially those that do not consider religious involvement—from atheism to the phenomenon of ‘nones’ (non-believers and non-practicing), from spirituality to forms of para-religions and quasi-religions and the varied set of multiple religions. 
  • 5.8K
  • 13 Apr 2022
Topic Review
Social Change
Social change refers to the transformation of societal structures, institutions, and behaviors over time. It involves shifts in values, norms, and practices that impact the way individuals and groups interact, ultimately influencing the broader dynamics of a society. Social change can result from various factors, including technological advancements, cultural evolution, political movements, and economic developments.
  • 5.8K
  • 26 Jan 2024
Biography
Nizam Al-Mulk
Abu Ali Hasan ibn Ali Tusi (April 10, 1018 – October 14, 1092), better known by his honorific title of Nizam al-Mulk (Persian: نظام‌الملک‎, lit. 'Order of the Realm'[1]) was a Persian[2][3] scholar, political philosopher and vizier of the Seljuk Empire. Rising from a lowly position,[4] he was the de facto ruler of the empire for 20 years after the assassination of sultan Alp Arsl
  • 5.8K
  • 16 Nov 2022
Topic Review
Shambhala
In Tibetan Buddhist tradition, Shambhala (Sanskrit: शम्भल Śambhala, also spelled Shambala or Shamballa; Tibetan: བདེ་འབྱུང, Wylie: Bde'byung; Chinese: 香巴拉; pinyin: Xiāngbālā) is a mythical kingdom. Shambhala is mentioned in the Kalacakra Tantra. The Bon scriptures speak of a closely related land called Tagzig Olmo Lung Ring. The Sanskrit name is taken from the name of a city mentioned in the Hindu Puranas, probably in reference to Sambhal in Uttar Pradesh. The mythological relevance of the place originates with a prophecy in Vishnu Purana (4.24) according to which Shambhala will be the birthplace of Kalki, the final incarnation of Vishnu, who will usher in a new Age (Satya Yuga).
  • 5.8K
  • 01 Dec 2022
Topic Review
Autonomous Driving Technologies in Electric Vehicles
In response to severe environmental and energy crises, the world is increasingly focusing on electric vehicles (EVs) and related emerging technologies. Sensory, control, and telematics technologies are the keys to reliable autonomous driving. The integration and complementarity of EVs and autonomous driving will be an important opportunity for future smart transportation and smart cities. 
  • 5.8K
  • 01 Sep 2022
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