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Topic Review
Tensile Testing
Tensile testing, also known as tension testing, is a fundamental materials science and engineering test in which a sample is subjected to a controlled tension until failure. Properties that are directly measured via a tensile test are ultimate tensile strength, breaking strength, maximum elongation and reduction in area. From these measurements the following properties can also be determined: Young's modulus, Poisson's ratio, yield strength, and strain-hardening characteristics. Uniaxial tensile testing is the most commonly used for obtaining the mechanical characteristics of isotropic materials. Some materials use biaxial tensile testing. The main difference between these testing machines being how load is applied on the materials.
  • 3.6K
  • 23 Nov 2022
Topic Review Peer Reviewed
Interdisciplinary and Integrated STEM
Science, Technology, Engineering, and Mathematics (STEM) is an approach and movement in innovative educational practices from the primary level internationally. This would provide a platform for an inquiry approach, creativity, and innovation in young children and formulate a path for changes in existing practices. The STEM approach is widely accepted as a key educational practice; however, it is dealt with as a combination of disciplines in actual teaching and learning practice. Coherence in this interdisciplinarity and integration has yet to be evolved as a practice in synthesising and designing instruction and could be harbinger for an effective design for future practice. Integrated and interdisciplinary STEM can only generate powerful knowledge to deal with issues that are affecting the planet and bring abiotic and biotic equilibrium. Interdisciplinary and integrated powerful knowledge (IIPK) can act as a roadmap for innovation that can bring changes in existing practices, produce informed citizens, build capacity for informed decisions, and generate sustainable living practices. Interdisciplinary and integrated STEM could lay foundations for IIPK and generate a mindset, approach, and practice. IIPK could lead to the formation of new paths for energy generation, transport, agricultural practices, medical treatment, and clean environment. Interdisciplinary and integrated STEM is not seen in actual practice anywhere nowadays. For coherence in curriculum, implications in instructions need reform and development by the governments across the world. That could lead to a new policy for interdisciplinary and integrated STEM.
  • 3.6K
  • 13 Apr 2022
Topic Review
Avocado–Soybean Unsaponifiables (ASU)
Avocado and soybean unsaponifiables (ASU) constitute vegetable extracts made from fruits and seeds of avocado and soybean oil. Characterized by its potent anti-inflammatory effects, this ASU mixture is recommended to act as an adjuvant treatment for osteoarthritic pain and slow-acting symptomatic treatment of hip and knee osteoarthritis; autoimmune diseases; diffuse scleroderma and scleroderma-like states (e.g., morphea, sclerodactyly, scleroderma in bands). Besides, it can improve the mood and quality of life of postmenopausal women in reducing menopause-related symptoms. 
  • 3.6K
  • 05 May 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.
  • 3.6K
  • 24 Oct 2022
Topic Review
Applications of the Intelligent Traffic Management System
The intelligent traffic management system (ITMS) is primarily used in the management of traffic in four distinct regions of traffic scenes by using imaging technology.
  • 3.6K
  • 09 Mar 2023
Topic Review
Mechanical Durability of PEM Fuel Cells
The mechanical durability of PEM fuel cells is a significant barrier to commercializing these systems for stationary and transportation power applications. The performance of a PEM fuel cell or stack is affected pointedly by the degradation of its components materials. Performance degradation is unavoidable, but the degradation rate can be minimized by comprehensively understanding degradation and failure mechanisms. Furthermore, the degradation processes of the different components are often interconnected in fuel cells. Therefore, the degradation phenomena of each fuel cell component must be separated, analyzed, and systematically understood to develop novel component materials and build novel cells/stacks that mitigate insufficient fuel cell mechanical durability.
  • 3.6K
  • 01 Aug 2022
Topic Review Video Peer Reviewed
Developing the Socio-Emotional Intelligence of Doctoral Students
Socio-emotional intelligence is the capacity to consider emotions, intuition, and cognition to identify, manage and express emotions and to respond to social situations with authenticity, openness and fairness. By doing so, individuals will achieve a sense of wellbeing and build meaningful relations whilst having a positive impact on the environment, others and themselves. The term doctoral student refers to a postgraduate researcher completing a doctoral degree. Supervisor is the term used in academia for an academic guiding and supporting the doctoral student. Doctoral supervisions usually include at least two academics as supervisors. A doctoral degree in the UK normally focuses on the in-depth study of a topic; these can be chosen by the doctoral student or sometimes be content-specific if a scholarship is attached.
  • 3.6K
  • 19 Oct 2023
Topic Review
TiO2
TiO2 probably plays the most important role in photocatalysis due to its excellent chemical and physical properties. However, the band gap of TiO2 corresponds to the Ultraviolet (UV) region, which is inactive under visible irradiation. At present, TiO2 has become activated in the visible light region by metal and nonmetal doping and the fabrication of composites. Recently, nano-TiO2 has attracted much attention due to its characteristics of larger specific surface area and more exposed surface active sites. nano-TiO2 has been obtained in many morphologies such as ultrathin nanosheets, nanotubes, and hollow nanospheres.
  • 3.6K
  • 29 Oct 2020
Topic Review
Tumor Invasion and Metastasis
Metastasis is considered one of the hallmarks of cancer and enhanced tumor invasion and metastasis is significantly associated with cancer mortality. Metastasis occurs via a series of integrated processes involving tumor cells and the tumor microenvironment. The innate immune components of the microenvironment have been shown to engage with tumor cells and not only regulate their proliferation and survival, but also modulate the surrounding environment to enable cancer progression. 
  • 3.6K
  • 01 Dec 2021
Topic Review
List of Starship Flights
Prototypes of the upper stage of the SpaceX Starship have been flown nine times. Designed and operated by private manufacturer SpaceX, the flown prototypes of Starship have been Starhopper, SN5, SN6, SN8, SN9, SN10, SN11, and SN15. Starship is planned to be a fully reusable super heavy-lift launch vehicle and unusual for previous launch vehicle and spacecraft designs, the upper stage of Starship is intended to function both as a second stage to reach orbital velocity on launches from Earth, and also be used in outer space as an on-orbit long-duration spacecraft.
  • 3.6K
  • 02 Dec 2022
Topic Review
Bioferments
Bioferments are innovative ingredients extracted from natural raw materials by carrying out a fermentation process with appropriate strains of microorganisms. Mainly bioferments are made from plant-based raw materials. The spectrum of applications for bioferments is broad and includes properties such as skin whitening, antioxidant properties (blackberry, soybean, goji berry), anti-aging (red ginseng, black ginseng, Citrus unshiu peel), hydrating, and anti-allergic (aloe vera, skimmed milk).
  • 3.6K
  • 04 Aug 2022
Topic Review
Antifoaming Agent for Lubricating Oil
In the process of using lubricating oil, it is inevitable that bubbles will be produced, which can not only accelerate the oil’s oxidation and shorten the oil change cycle but also reduce its fluidity and lubricity, aggravate the wear of mechanical parts and produce an air lock that interrupts the oil pump supply and causes an oil shortage accident.
  • 3.6K
  • 18 Apr 2023
Topic Review
Thiosugars of Biological Significance
Thiosugars are important compounds because of their structural complexity and crucial biological activities. Therefore, a series of methods are developed for their synthesis using new methods. Unlike, oxygen sugars, thiosugars are more stable and therefore, much scope exists to alter their structures by chemical manipulations. Notably, thiosugars can act as glycosyl donors as well as acceptors.  Many functionalized thiosugars occur naturally and are potential targets for therapeutics. Synthesis of thiosugars following convergent route is a challenge.  Over the years, scientists have explored thiosugars through numerous green and sustainable methods. These studies are highly significant and timely since it opens the door towards carbohydrate-based drugs.
  • 3.6K
  • 25 Nov 2020
Topic Review
Cholinergic Receptors
Cholinergic receptors are activated by acetylcholine, a neurotransmitter that is released by the motor neurons for sensory and motor processing.
  • 3.6K
  • 30 Dec 2021
Topic Review
Hindu Eschatology
Hindu eschatology is linked in the Vaishnavite tradition to the figure of Kalki, or the tenth and last avatar of Vishnu names of the Supreme Being in Hinduism and before the age draws to a close, and Harihara simultaneously dissolves and regenerates the universe. The current period is Kali Yuga, the last of four Yuga that make up the current age. It started just after Krishna left the earth in human form, in almost 3102 BCE or 5123 years from 2021. Each period has seen a progressive decline in morality, to the point that in Kali Yuga quarrel and hypocrisy are norm. In Hinduism, time is cyclic, consisting of cycles or "kalpas". Each kalpa lasts for 4.32 billion years and is followed by a pralaya (dissolution) of equal length, which together make a period of one full day and night of Brahma's 100 360-day year lifespan, who lives for 311 trillion, 40 billion years. The cycle of birth, growth, decay, and renewal at the individual level finds its echo in the cosmic order, yet is affected by the vagaries of divine intervention in Vaishnavism. Some Shaivites hold the view that he is incessantly destroying and creating the world.
  • 3.6K
  • 24 Nov 2022
Topic Review
Mesenchymal Stem Cells
Mesenchymal stem cells (MSCs) are multipotent cells which can proliferate and replace dead cells in the body. MSCs also secrete immunomodulatory molecules, creating a regenerative microenvironment that has an excellent potential for tissue regeneration.
  • 3.6K
  • 20 Jan 2021
Topic Review
Natural Convection
Convection is single or multiphase fluid flow that occurs spontaneously due to the combined effects of material property heterogeneity and body forces on a fluid, most commonly density and gravity (see buoyancy). When the cause of the convection is unspecified, convection due to the effects of thermal expansion and buoyancy can be assumed. Convection may also take place in soft solids or mixtures where particles can flow. Convective flow may be transient (such as when a multiphase mixture of oil and water separates) or steady state (see Convection cell). The convection may be due to gravitational, electromagnetic or fictitious body forces. Heat transfer by natural convection plays a role in the structure of Earth's atmosphere, its oceans, and its mantle. Discrete convective cells in the atmosphere can be identified by clouds, with stronger convection resulting in thunderstorms. Natural convection also plays a role in stellar physics. Convection is often categorised or described by the main effect causing the convective flow, e.g. Thermal convection. Convection cannot take place in most solids because neither bulk current flows nor significant diffusion of matter can take place.
  • 3.6K
  • 10 Oct 2022
Topic Review
Biostimulants Application in Horticultural Crops under Abiotic Stress Conditions
Abiotic stresses strongly affect plant growth, development, and quality of production; final crop yield can be really compromised if stress occurs in plants’ most sensitive phenological phases. Additionally, the increase of crop stress tolerance through genetic improvements requires long breeding programmes and different cultivation environments for crop performance validation. Biostimulants have been proposed as agronomic tools to counteract abiotic stress. Indeed, these products containing bioactive molecules have a beneficial effect on plants and improve their capability to face adverse environmental conditions, acting on primary or secondary metabolism. Many companies are investing in new biostimulant products development and in the identification of the most effective bioactive molecules contained in different kinds of extracts, able to elicit specific plant responses against abiotic stresses. Most of these compounds are unknown and their characterization in term of composition is almost impossible; therefore, they could be classified on the basis of their role in plants. Biostimulants have been generally applied to high-value crops like fruits and vegetables; thus, in this review, we examine and summarise literature on their use on vegetable crops, focusing on their application to counteract the most common environmental stresses.
  • 3.6K
  • 29 Oct 2020
Topic Review
Unemployment Benefits
Unemployment benefits (depending on the jurisdiction also called unemployment insurance or unemployment compensation) are payments made by back authorized bodies to unemployed people. In the United States, benefits are funded by a compulsory governmental insurance system, not taxes on individual citizens. Depending on the jurisdiction and the status of the person, those sums may be small, covering only basic needs, or may compensate the lost time proportionally to the previous earned salary. Unemployment benefits are generally given only to those registering as unemployed, and often on conditions ensuring that they seek work and do not currently have a job, and are validated as being laid off and not fired for cause in most states.
  • 3.6K
  • 11 Nov 2022
Topic Review
Betulinic Acid
Betulinic acid (BA, 3β-hydroxy-lup-20(29)-en-28-oic acid) is a pentacyclic triterpene acid present predominantly in Betula ssp. (Betulaceae) and is also widely spread in many species belonging to different plant families. BA presents a wide spectrum of remarkable pharmacological properties, such as cytotoxic, anti-HIV, anti-inflammatory, antidiabetic and antimicrobial activities, including antiprotozoal effects.
  • 3.6K
  • 24 May 2021
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