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Topic Review
Euler Line
In geometry, the Euler line, named after Leonhard Euler (/ˈɔɪlər/), is a line determined from any triangle that is not equilateral. It is a central line of the triangle, and it passes through several important points determined from the triangle, including the orthocenter, the circumcenter, the centroid, the Exeter point and the center of the nine-point circle of the triangle. The concept of a triangle's Euler line extends to the Euler line of other shapes, such as the quadrilateral and the tetrahedron.
  • 3.7K
  • 19 Oct 2022
Topic Review Peer Reviewed
Secondary Education and COVID-19
Secondary education is the second stage of formal education and traditionally begins after primary school, usually about age 11 to 13. The COVID-19 pandemic caused immeasurable changes to the educational system which inevitably greatly impacted secondary education. The current entry describes the changes in secondary education imposed by the pandemic and explores the accompanying challenges.
  • 3.7K
  • 14 Apr 2022
Topic Review
VGA-Compatible Text Mode
VGA-compatible text mode was introduced in 1987 by IBM as part of the VGA standard for its IBM PS/2 computers. Its use on IBM PC compatibles was widespread through the 1990s and persists today for some applications on modern desktop computers. The main features of VGA text mode are colored (programmable 16 color palette) characters and their background, blinking, various shapes of the cursor (block/underline/hidden static/blinking), and loadable fonts (with various glyph sizes). The Linux console traditionally uses hardware VGA-compatible text modes, and the Win32 console environment has an ability to switch the screen to text mode for some text window sizes.
  • 3.7K
  • 24 Oct 2022
Topic Review
CPU Power Dissipation
Central processing unit power dissipation or CPU power dissipation is the process in which central processing units (CPUs) consume electrical energy, and dissipate this energy in the form of heat due to the resistance in the electronic circuits.
  • 3.7K
  • 25 Nov 2022
Topic Review
Yola (Language)
Yola, historically the Forth and Bargy dialect, is a revived Anglic language once spoken in the baronies of Forth and Bargy in County Wexford, Ireland. It is thought to have evolved from Middle English, which was brought to Ireland during the Norman invasion, beginning in 1169. As such, it was similar to the Fingallian dialect of the Fingal area. Both became functionally extinct in the 19th century, when they were replaced by modern Hiberno-English, although Yola was not officially extinct until the death of the last speaker, a local fisherman of Kilmore Quay named Jack Devereux in 1998. The name "Yola" means "old" in the language.
  • 3.7K
  • 29 Sep 2022
Topic Review
Silica Nanoparticles in Plants
The demand for agricultural crops continues to escalate with the rapid growth of the population. Silica nanoparticles (SNPs) are beneficial for plant growth and production and can be used as nanopesticides, nanoherbicides, and nanofertilizers in agriculture. SNPs can be classified as porous or non-porous in structure and can be synthesized by chemical, physical, and biological methods. In agriculture, SNP can be sprayed on foliage or irrigated into the soil. SNPs can promote plant growth and development by increasing photosynthesis and nutrient uptake rates and enhancing plant resistance to environmental stress. In the future, SNPs will provide various solutions for the healthy growth of agricultural crops.
  • 3.7K
  • 23 Feb 2022
Topic Review
Sustainable Employability
Sustainable employability (SE) generally refers to employees’ capacities to function in work and on the labor market throughout their working lives. However, several definitions have been forwarded in the scientific literature that differ in nuanced ways. A recent overview of existing definitions is provided by Fleuren, de Grip, Jansen, Kant, and Zijlstra (2020).[1]
  • 3.7K
  • 29 Oct 2020
Topic Review
Arsenic metabolism, excretion, and toxicity
       Arsenic is a global, naturally present pollutant found in drinking water that is consumed by millions of people throughout the world. Humans have evolved an arsenic methyltransferase present in high levels in the liver to expedite its excretion from the body. Most organisms have this enzyme. The enzyme generates monomethyl (MMA) and dimethyl arsenic (DMA). These methylated species are considered more toxic than arsenite, but they bind less tightly to proteins and thereby are excreted more rapidly from the body. Individuals who have been chronically exposed to arsenite were found to possess advantageous genotypes to metabolize arsenites. However, higher expression of AS3MT was found to yield more toxic MMA but lower amounts were still capable of metabolizing arsenite to DMA. This likely reflects the complex metabolic processes involving not only AS3MT, but antioxidants and upstream regulators of AS3MT, potentially transcription factor NRF2. This article discusses arsenic metabolism, excretion, toxicity, and the evolution of this enzyme across various species. The fact that so many organisms have evolved to possess this arsenite metabolizing enzyme is indicative of the widespread and ancient pollution of our drinking water by arsenite.
  • 3.7K
  • 09 Oct 2020
Topic Review
Nationalism in the Middle Ages
Theories on the existence of nationalism in the Middle Ages may belong to the general paradigms of ethnosymbolism and primordialism or perennialism. Several scholars of nationalism support the existence of nationalism in the Middle Ages (mainly in Europe). This school of thought differs from modernism, which suggests that nationalism developed after the late 18th century and the French Revolution.
  • 3.7K
  • 10 Nov 2022
Topic Review
Catalytic Synthesis of Glycerol Carbonate
Glycerol carbonate (GC) belongs to the family of organic carbonates that are regarded as very typical “green chemistry” products for their unique advantages in many fields, such as high boiling point solvents, pharmaceutical intermediates, and material intermediates.
  • 3.7K
  • 10 Feb 2022
Topic Review
Mopane Worm
Fast-growing and highly adaptable avian birds such as quail (Coturnix coturnix) possess great potential to meet the growing demand for animal protein by the rapidly increasing human population, and would contribute immensely to global food production and nutritional security. However, overreliance on conventional protein sources such as fish and soybean meals during the formulation of quail diets is economically and environmentally unsustainable. Alternatively, insect-based protein sources such as Gonimbrasia belina, commonly known as mopane worm (MW), can be used to increase quail production due to their high biological value and low feed-food competition. Indeed, MW is highly nutritious, with an average protein content of 55% and a well-balanced amino acid profile. Thus, its incorporation in quail diets could provide great potential to alleviate nutritional deficiencies in quail production and allow for their sustainable intensification.
  • 3.7K
  • 20 May 2022
Topic Review
Plain Meaning Rule
The plain meaning rule, also known as the literal rule, is one of three rules of statutory construction traditionally applied by English courts. The other two are the "mischief rule" and the "golden rule". The plain meaning rule dictates that statutes are to be interpreted using the ordinary meaning of the language of the statute. In other words, a statute is to be read word for word and is to be interpreted according to the ordinary meaning of the language, unless a statute explicitly defines some of its terms otherwise or unless the result would be cruel or absurd. Ordinary words are given their ordinary meaning, technical terms are given their technical meaning, and local, cultural terms are recognized as applicable. The plain meaning rule is the mechanism that prevents courts from taking sides in legislative or political issues. Additionally, it is the mechanism that underlies textualism and, to a certain extent, originalism.
  • 3.7K
  • 30 Oct 2022
Topic Review
Deriving Vectorcardiography from 12-Lead ECG
Vectorcardiography (VCG) is a valuable diagnostic tool that complements the standard 12-lead ECG by offering additional spatiotemporal information to clinicians. However, due to the need for additional measurement hardware and too many electrodes in a clinical scenario if performed along with a standard 12-lead, there is a need to find methods to derive the VCG from the ECG.
  • 3.7K
  • 22 May 2023
Topic Review
Multivariable Formulation of Surfactant-Oil-Water Systems
Surfactant-Oil-Water (SOW) systems are found in nature and synthetic products. They usually result in two immiscible phases, e.g., for two liquids, a water phase (often a brine), and an oily phase (which could be extremely complex as petroleum). Surfactant partitions between the two phases according to some physicochemical rules due to molecular interactions. There is a very particular formulation case in which SOW systems can form three immiscible phases, that is, two excess phases (water and oil) in equilibrium with a  so-called middle phase (because of an intermediate density that places it in the middle of a test tube). This middle phase is a so-called bicontinuous microemulsion which has no droplets dispersed in an external phase as a typical emulsion, but a complex single-phase structure similar to a disordered liquid crystal. When stirred, SOW systems can form multiple dispersed systems that can be described as macroemulsions or nanoemulsions depending on the drop size (O/W or W/O) or multiple emulsions (w/O/W or o/W/O) with droplets inside larger drops. Since the beginnings of the 20th century with Bancroft’s rule, the properties of these systems have been related to many thermodynamic variables, generally with one effect at a time. Nowadays, the generalized physicochemical concept of SOW systems with many formulation variables involved allows to make predictions in various application cases, even for very complex systems, as in enhanced oil recovery (EOR), crude oil dehydration, paints, foods, cosmetics and pharmaceutical formulations, that requires the control on 6-8 variables or even more. This is mainly because of the presence of mixtures of oils from linear alkanes to triglycerides or complex molecules perfumes, or a mixture of salts with cations from sodium to calcium or aluminum, and anions like chloride to phosphate. The complexity is even worse with mixtures of very different surface-active species, resulting in non-linear interactions.
  • 3.7K
  • 17 Aug 2021
Topic Review
Moringa oleifera
Moringa oleifera belongs to the Moringaceae family and is the best known of the native Moringa oleifera genus. For centuries, it has been used as a system of Ayurvedic and Unani medicine and has a wide range of nutritional and bioactive compounds, including proteins, essential amino acids, carbohydrates, lipids, fibre, vitamins, minerals, phenolic compounds, phytosterols and others. These characteristics allow it to have pharmacological properties, including anti-diabetic, anti-inflammatory, anticarcinogenic, antioxidant, cardioprotective, antimicrobial and hepatoprotective properties. The entire Moringa oleifera plant is edible, including its flowers, however, it is not entirely safe, because of compounds that have been found mainly in the root and bark, so the leaf was identified as the safest. Moringa oleifera is recognised as an excellent source of phytochemicals, with potential applications in functional and medicinal food preparations due to its nutritional and medicinal properties; many authors have experimented with incorporating it mainly in biscuits, cakes, brownies, meats, juices and sandwiches. The results are fascinating, as the products increase their nutritional value; however, the concentrations cannot be high, as this affects the organoleptic characteristics of the supplemented products.
  • 3.7K
  • 10 Mar 2021
Topic Review
Professional Esports Players Motivation
Esports refers to competitive video games in which teams or individuals compete against each other. It is considered a sporting activity in which players can develop and train their mental skills and hand-eye coordination while playing. The professionalisation of esports has increased in recent years, generating the need for further study. Its evolution and continuous development have led the consideration of esports as a profession, increasing the number of players, practice modalities, and hours of play dedicated to this field.
  • 3.7K
  • 18 Mar 2022
Biography
Max Tegmark
Max Erik Tegmark[1] (born 5 May 1967) is a Swedish-American physicist, cosmologist and machine learning researcher. He is a professor at the Massachusetts Institute of Technology and the scientific director of the Foundational Questions Institute. He is also a co-founder of the Future of Life Institute and a supporter of the effective altruism movement, and has received research grants from Elon
  • 3.7K
  • 22 Nov 2022
Topic Review
Medicinal Significance of 1,2,3-Thiadiazoles Derivatives
The 1,2,3-thiadiazole moiety occupies a significant and prominent position among privileged heterocyclic templates in the field of medicine, pharmacology and pharmaceutics due to its broad spectrum of biological activities.
  • 3.7K
  • 19 Jul 2021
Topic Review
Capital Structure
Capital structure is a firm’s mix of debt and equity financing. It is one of the most controversial areas of finance. Many of the results obtained in capital structure theory over the last 50-60 years have been very influential and led their authors to great international recognition. Among the researchers who contributed significantly to capital structure theory, note Nobel Prize Award winners Franco Modigliani, Merton Miller, Joseph Stiglitz, and most recently Jean Tirole. More research and more results are expected in this area in near future.
  • 3.7K
  • 09 Jun 2022
Topic Review
Participatory Methods for Urban Development
Despite the fact that vulnerable communities are the most affected by unplanned cities, considerably less attention has been given to involving them in urban development in order to ensure equitable outcomes. In this regard, there is an urgent need for governments to introduce and enforce processes that allow citizens, including vulnerable communities, to participate in development planning and policymaking. However, at present, there is a lack of guidance for practitioners regarding the definition of a clear purpose of community engagement and the selection of appropriate participatory methods to fulfil the set purpose. This study provides a thorough account of the participatory methods that can be used to achieve various engagement goals throughout the urban development process. This structured literature review used 71 reports published from 2000 to 2020. The review revealed 34 participatory methods, wherein most of the methods are devoted to informing, consulting and involving communities, whilst only a few methods are available for interactive public participation that supports true collaboration and empowerment. The study identified 12 purposes of community engagement in urban development, and mapped the 34 participatory methods for achieving them. The analysed case studies showed that the current community engagement practices are mainly in the pre-design and briefing stages of the urban development processes, and that most projects are aiming to achieve the ‘inform’ and ‘consult’ levels of engagement, with a few aiming to achieve the ‘involve’ and ‘collaborate’ levels. This study shows that community engagement is often overlooked during the professional design, development and post-development phases. The paper presents an onion model which can be used by practitioners to choose appropriate participatory methods based on the intended urban development phase, the engagement level and the purpose of the community engagement.
  • 3.7K
  • 16 Aug 2021
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