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
Digital Preservation of Cultural Heritage
The intensifying effects of climate change are becoming one of the main threats to cultural heritage, posing risks of degradation or destruction. Climate change is bringing complexity and uncertainty to ensuring the resilience of cultural heritage, and among risk mitigation measures digitalisation is regarded as a promising tool. However, the infrastructure required for the digitalisation process exerts significant pressures on the environment contributing to climate deterioration.
  • 4.0K
  • 06 Jun 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
Mount Tai
Mount Tai (Chinese: 泰山; pinyin: Tài Shān) is a mountain of historical and cultural significance located north of the city of Tai'an, it is the highest point in Shandong province, China. The tallest peak is the Jade Emperor Peak (simplified Chinese: 玉皇顶; traditional Chinese: 玉皇頂; pinyin: Yùhuáng Dǐng), which is commonly reported as being 1,545 meters (5,069 ft) tall, but is officially described by the PRC government as 1,532.7 meters (5,029 ft) tall. Mount Tai is known as the eastern mountain of the Sacred Mountains of China. It is associated with sunrise, birth, and renewal, and is often regarded the foremost of the five. Mount Tai has been a place of worship for at least 3,000 years and served as one of the most important ceremonial centers of China during large portions of this period. Because of its sacred importance and dramatic landscape, Promulgated by UNESCO as a Mixed Cultural and Natural Heritage in 1987. And it meets 7 of the 10 evaluation standards of World Heritage, and is listed as the World Heritage that meets the most standards along with the Tasmanian Wilderness World Heritage Area in Australia. An Earthquake or thunderstorm occurred in Mount Tai in 1831 BC or 1652 BC, also known as Mount Tai earthquake. First seen in "Bamboo Annals". At present, it is recognized by most scholars as the first recorded earthquake in Chinese history.
  • 4.0K
  • 10 Nov 2022
Topic Review
Afrikaans Folklore
Learners of Afrikaans as an additional language could be enabled to respond to aesthetical, emotional, cultural and social values. Through the use of Afrikaans folklore teachers can focus on developing the learners' ability to behave with cultural and aesthetic sensitivity in different social contexts. Afrikaans examples of folklore are mentioned and discussed briefly to include stories with humour, magic, the transmission of social and cultural values and traditions, ecological meaning, idiomatic expressions, praise poems, ogre characters and stereotypes. By means of a well-known background and/or context of a text, learners of Afrikaans as an additional language can become aware of the aesthetic range of the target language; they can become acquainted with the depth and content of meaning implied in the text. If a text is understood, the reader becomes personally involved and this, in itself, can lead the reader to interact creatively with the text - from the mechanical aspect of the language system to the analytical aspect - where s/he can participate in the story. The learner can thus discover how the events unfold, s/he can share the characters' emotional experiences and communicate their personal responses. Herein lies the relevance of a good reading text (despite the origin) - because the reader inhabits the text and in the process the language becomes transparent.
  • 4.0K
  • 31 Oct 2022
Topic Review
Detection of Beta-Glucan
This entry provides a comprehensive review of the current literature about biological properties and available methods for the detection of beta-glucans. It shares the experience of the Nanotechnology Characterization Laboratory with the detection of beta-glucans in nanotechnology-based drug products. This entry summarizes and discusses five different approaches currently applied for the data interpretation of beta-glucan tests with respect to the acceptability (or lack thereof) of the beta-glucan levels in pharmaceutical products.
  • 4.0K
  • 03 Nov 2020
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
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
AI Art
Artists have been working with artificial intelligence (AI) since the 1970s. They comprised a minuscule enclave within the early computer art community throughout the 1970s and 1980s and were largely unnoticed by the mainstream artworld and broader public. In the 1990s and 2000s, more artists got involved with AI and produced installations that question the meaning of agency, creativity, and expression. Since the 2000s, AI art diversified into generative and interactive approaches that involved statistical methods, natural language processing, pattern recognition, and computer vision algorithms. The increasing affordance of multilayered machine learning architectures, as well as the raising socio-political impact of AI, have facilitated the further expansion of AI art in the second half of the 2010s. The topics, methodologies, presentational formats, and implications of contemporary AI art are closely related to, and affected by, AI science research, development, and commercial application. The poetic scope of AI art is primarily informed by the various phenomenological aspects of sub-symbolic machine learning. It comprises creative strategies that explore the epistemological boundaries and artifacts of AI architectures; sample the latent space of neural networks; aestheticize the AI data renderings; and critique the conceptual, existential, or socio-political consequences of corporate AI; a few works criticize AI art itself. These strategies unfold in disparate practices ranging from popular and spectacular to tactical and experimental. The existing taxonomies or categorizations of AI art should be considered as provisory because of the creative dynamics and transdisciplinary character of the field. Similar to other computational art disciplines, AI art has had an ambivalent relationship with the mainstream artworld, marked by selective marginalization and occasional exploitation.
  • 4.0K
  • 27 Jan 2022
Topic Review
Kadambari
Kādambari is a romantic novel in Sanskrit. It was substantially composed by Bāṇabhaṭṭa in the first half of the 7th century CE, who did not survive to see it through completion. The novel was completed by Banabhatta's son Bhushanabhatta, according to the plan laid out by his late father. It is conventionally divided into Purvabhaga (earlier part) written by Banabhatta, and Uttarabhaga (latter part) by Bhushanabhatta. (An alternate tradition gives the son's name as Pulindabhatta.) The standard editions of the original Sanskrit text are by Peterson and Kane. There are translations into English by Kale, Layne and Ridding; and an abridgement into Gujarati by Bhalan (edited by Keshavlal Dhruv). This novel has an extremely intricate plot which is difficult to summarize concisely. Its central thread is that of a romantic attachment (and eventual union) between the hero Chandrapeeda and the heroine Kadambari. However, there are several competing subplots; indeed, the heroine does not make her appearance until past the midpoint. Many of the characters appear in multiple incarnations, some as humans and some as demigods or animals. The narration proceeds in a succession of nested frames; a large part of it is a retelling by a parrot of a story which was told to it by a sage. The latter story also contains several instances of one character relating a sub-story to another character. The plot has probably been adapted from the story of King Sumanas from Gunadhya's Brihatkatha (a conjectural collection of stories in the extinct Paishachi language). This story also appears in Somadeva's Kathasaritsagara (which is believed to be a Sanskrit precis of Gunadhya's work). This work can be plausibly claimed to be one of the first novels in the world; making due allowance for the ambiguities of such a classification. In fact, two modern Indian languages (Kannada and Marathi) use 'kadambari' as a generic term for a romance or a novel. Apart from the Kadambari, Banabhatta is also the author of Harshacharita, a biography of his patron king Harshavardhana. It is this circumstance which allows one to date the author with a reasonable degree of certainty.
  • 4.0K
  • 14 Oct 2022
Topic Review
Pomegranate Juice for CYP3A4- and CYP2C9-Mediated Drugs Metabolism
The Punica granatum L. (pomegranate) fruit juice contains large amounts of polyphenols, mainly tannins such as ellagitannin, punicalagin, and punicalin, and flavonoids such as anthocyanins, flavan-3-ols, and flavonols. These constituents have high antioxidant, anti-inflammatory, anti-diabetic, anti-obesity, and anticancer activities. Because of these activities, many patients may consume pomegranate juice (PJ) with or without their doctor’s knowledge. This may raise any significant medication errors or benefits because of food-drug interactions that modulate the drug’s pharmacokinetics or pharmacodynamics. 
  • 4.0K
  • 18 May 2023
Topic Review
List of Aircraft in the Smithsonian Institution
The List of aircraft in the Smithsonian Institution includes aircraft exhibited in the Smithsonian Institution's National Air and Space Museum, Steven F. Udvar-Hazy Center, and the Paul E. Garber Preservation, Restoration, and Storage Facility. The Smithsonian Institution's collection of aircraft and spacecraft is the largest on display in the world.
  • 4.0K
  • 21 Oct 2022
Biography
Venkatraman Ramakrishnan
Venkatraman "Venki" Ramakrishnan (born 1952)[1] is an American and British structural biologist of Indian origin. He was elected President of the Royal Society in November 2015; Presidents serve for five years.[2] In 2009 he shared the Nobel Prize in Chemistry with Thomas A. Steitz and Ada Yonath, "for studies of the structure and function of the ribosome".[3][4][5][6][7] Since 1999, he has wor
  • 4.0K
  • 21 Nov 2022
Topic Review Peer Reviewed
Numerical Solution of Desiccation Cracks in Clayey Soils
This entry presents the theoretical fundamentals, the mathematical formulation, and the numerical solution for the problem of desiccation cracks in clayey soils. The formulation uses two stress state variables (total stress and suction) and results in a non-symmetric and nonlinear system of transient partial differential equations. A release node algorithm technique is proposed to simulate cracking, and the strategy to implement it in the hydromechanical framework is explained in detail. This general framework was validated with experimental results, and several numerical examples were published at international conferences and in journal papers.
  • 4.0K
  • 25 May 2022
Topic Review Peer Reviewed
T’amar Bagrationi (1184–1210)
T’amar Bagrationi, Queen of Georgia (1184–1210). T’amar Bagrationi was the ninth monarch from the royal house of Bagrationis who ruled over the united Georgian Kingdom. She reigned as a co-monarch alongside her father, Giorgi III, from 1178, assuming full authority in 1184. During her reign, dynastic legitimacy necessitated the appearance of the monumental royal portraits displaying the monarch with immediate predecessors and heirs. T’amar’s gender required introduction of meticulous visual language that would re-gender her with all signs of a male ruler and justify her status and sole right to rule. This notion was embodied in her portraits that were carefully incorporated in the overall programmes of the churches. T’amar’s five monumental depictions survive where she is identified in inscriptions; two other monumental images are presumed to depict her. Of all the depictions, only one can be determined to have been commissioned directly by her. T’amar’s imagery relies on Byzantine elements and adheres to established Georgian models for the local royal portraiture; however, it also adopted sophisticated visual means that was aptly used for manifesting royal power and manipulating authority over the nobility. 
  • 4.0K
  • 18 Aug 2022
Topic Review
Mode-locking
Mode-locking is a technique in optics by which a laser can be made to produce pulses of light of extremely short duration, on the order of picoseconds (10−12 s) or femtoseconds (10−15 s). A laser operated in this way is sometimes referred to as a femtosecond laser, for example in modern refractive surgery. The basis of the technique is to induce a fixed-phase relationship between the longitudinal modes of the laser's resonant cavity. Constructive interference between these modes can cause the laser light to be produced as a train of pulses. The laser is then said to be 'phase-locked' or 'mode-locked'.
  • 4.0K
  • 03 Nov 2022
Topic Review
HEK293 Cell Line
The HEK293 cell line has earned its place as a producer of biotherapeutics. In addition to its ease of growth in serum-free suspension culture and its amenability to transfection, this cell line’s most important attribute is its human origin, which makes it suitable to produce biologics intended for human use. At the present time, the growth and production properties of the HEK293 cell line are inferior to those of non-human cell lines, such as the Chinese hamster ovary (CHO) and the murine myeloma NSO cell lines. However, the modification of genes involved in cellular processes, such as cell proliferation, apoptosis, metabolism, glycosylation, secretion, and protein folding, in addition to bioprocess, media, and vector optimization, have greatly improved the performance of this cell line.
  • 4.0K
  • 07 Jul 2021
Topic Review
High-Purity Quartz Processing Technology
Quartz deposits are widely dispersed in nature, but the presence of ore bodies capable of yielding high-purity quartz is exceedingly rare. As a result, the effective purification and processing of high-purity quartz from natural siliceous materials has emerged as a prominent area of research within the non-metallic mineral processing field.
  • 4.0K
  • 12 Dec 2023
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
Thyroid and Heart
The thyroid–heart relationship has a long and articulated history of its own, a history that encompasses physiological and pathophysiological knowledge. Molecular biology studies, in an experimental context, have highlighted the extraordinary dialogue that exists among the two systems in the field of cardioprotection, which is an extremely important area for the treatment of cardiac diseases in both acute and chronic phases. In addition, in the last few years, several studies have been carried out on the prognostic impact of alterations in thyroid function, including subclinical ones, in heart disease, in particular in heart failure and acute myocardial infarction, with evidence of a negative prognostic impact of these and, therefore, with the suggestion to treat these alterations in order to prevent cardiac events, such as death.  A comprehensive summary of the heart–thyroid relationship is provided.
  • 4.0K
  • 03 Jan 2024
Topic Review
Treating Delusional Disorder with Antipsychotics
Delusional disorder (DD) has been considered a treatment-resistant disorder, with antipsychotics acknowledged as the best. It is possible that the discovery of the right drug could turn treatment resistance into treatment response.
  • 4.0K
  • 29 Dec 2022
  • Page
  • of
  • 2798
Featured Entry Collections
>>

Featured Reprints

>>
Encyclopedia of Digital Society, Industry 5.0 and Smart City
Encyclopedia of Engineering
Encyclopedia of Social Sciences
Encyclopedia of Medieval Royal Iconography
Academic Video Service
Feedback