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Topic Review
Autophagic Body Formation in Plants
This article is associated with the MDPI International Journal of Molecular Sciences article, which belongs to a Special Issue Plant Cell and Organism Development, “Completing Autophagy: Formation and Degradation of the Autophagic Body and Metabolite Salvage in Plants” by Szymon Stefaniak1, Łukasz Wojtyla1, Małgorzata Pietrowska-Borek2, Sławomir Borek1,* The article has been published on https://doi.org/10.3390/ijms21062205, Int. J. Mol. Sci. 2020, 21(6), 2205. The work was financed by the National Science Centre, Poland (grant no. 2016/23/B/NZ3/00735).
  • 3.2K
  • 29 Oct 2020
Topic Review
Lusterware
Lusterware or Lustreware (respectively the US and all other English spellings) is a type of pottery or porcelain with a metallic glaze that gives the effect of iridescence. It is produced by metallic oxides in an overglaze finish, which is given a second firing at a lower temperature in a "muffle kiln", or a reduction kiln, excluding oxygen. The discovery of this technique can be traced back to the 7th century A.D. when Islam emerged in the city of Mecca. Lusterware was first created for the royal courts and the technique of lusterware on ceramic was developed originally in Iraq. Some pieces were signed by their makers, this acted as an indication of the admiration towards each craftsman. Trading in the Middle East was very popular. Abbasid lusterware was very common in trade within the Islamic world; other popular trade items were textiles and various materials for building and crafting (ivory, wood, etc.). The Abbasid period served as an era of discovery especially in relation to the production of luster. The city of Baghdad, Iran and surrounding cities were located on the Silk Road which was the hub of trading during this period. There was a movement of goods generated between Iraq and China which triggered artistic emulations both ends, as well as some transfers of technologies, notably in the realm of ceramics. Lusterware traveled along the trade routes; the production of ceramic lusterware was seen in Egypt and Syria during later centuries.
  • 3.2K
  • 27 Oct 2022
Topic Review
Isatis tinctoria L. (Woad)
Isatis tinctoria L. (Brassicaceae), which is commonly known as woad, is a species with an ancient and well-documented history as an indigo dye and medicinal plant. Currently, I. tinctoria is utilized more often as medicinal remedy and also as a cosmetic ingredient. In 2011, I. tinctoria root was accepted in the official European phytotherapy by introducing its monograph in the European Pharmacopoeia. The biological properties of raw material have been known from Traditional Chinese Medicine (TCM). Over recent decades, I. tinctoria has been investigated both from a phytochemical and a biological point of view. The modern in vitro and in vivo scientific studies proved anti-inflammatory, anti-tumour, antimicrobial, antiviral, analgesic, and antioxidant activities. The phytochemical composition of I. tinctoria has been thoroughly investigated and the plant was proven to contain many valuable biologically active compounds, including several alkaloids, among which tryptanthrin, indirubin, indolinone, phenolic compounds, and polysaccharides as well as glucosinolates, carotenoids, volatile constituents, and fatty acids. This article provides a general botanical and ethnobotanical overview that summarizes the up-to-date knowledge on the phytochemistry and biological properties of this valuable plant in order to support its therapeutic potential. Moreover, the biotechnological studies on I. tinctoria, which mainly focused on hairy root cultures for the enhanced production of flavonoids and alkaloids as well as on the establishment of shoot cultures and micropropagation protocols, were reviewed. They provide input for future research prospects.
  • 3.2K
  • 28 Oct 2020
Topic Review
Grid Code Requirements in Ethiopia
Rapid integration of renewable energy into the electric grid has ramifications for grid management and planning. Therefore, system operators have formulated grid code requirements to ensure that the grid continues to operate in a secure, safe, and cost-effective manner. The current state of grid code in Ethiopia, as well as the need for it, is discussed here. It lays out the technological grid integration requirements, with a focus on small and microgrids, which are especially important for the integration of renewable. 
  • 3.2K
  • 08 Aug 2022
Topic Review
Tunneling and Blocking Oxides on Memory Cells
Flash memory is an electronic, non-volatile information storage device that can be electrically erased and reprogrammed. Ideally, the information stored in such a device should be preserved for long when the power is switched off. There are two flash memories designs at present: floating gate and charge trapping. Both of them work by storage of electrical charges in the space above the channel of the MOSFET. The charge storage volume of the flash cell, either poly-Si floating gate or charge trapping dielectric/dielectric stack is confined between blocking and tunnel oxides for electrical insulation from the gate electrode and Si substrate. Blocking and tunnelling oxides are important parts of the flash memory cells, as they affect retention, endurance and program/erase speed performance.
  • 3.2K
  • 20 Oct 2023
Topic Review
Mustard Oil Bomb
"Mustard oil bomb" is present in the order of Brassicales, including many Brassica vegetables that humans consume. Although it has beneficial value to human nutrition and health, plants evolved the mustard oil bomb for their defense. Glucosinolates and myrosinases are the key components of the bomb. In this brief entry, we describe the building-blocks of the mustard oil bomb and how it functions in plant defense against pathogens and insects.
  • 3.2K
  • 19 Dec 2020
Topic Review
Hybrid Microgrid System
A novel energy management system for a hybrid microgrid has been developed that uses a new control algorithm termed Inefficient Power Conversion Elimination Algorithm (IPCEA). The proposed algorithm compares the Net Transferable Power (NTP) available at the DC side with the loss rate across the converter. The converter is switched off (or disconnected from the grid and load) if the NTP is less than 20% of the converter rating to avoid low-efficiency power conversion. The solar PV system is connected to the DC bus to supply the DC loads while the AC loads are supplied from the AC source (utility power). An auxiliary battery pack has been integrated to the DC side to feed DC loads during the absence of solar energy. Battery Energy Storage System (BESS) has been deployed to manage energy distribution effectively. Power distribution is managed using a centralized microgrid controller, and the load demand is met accordingly. Thereby, power generated by solar PV can be utilized effectively. Microgrid technology's effectiveness is emphasized by comparative analysis, and the achievements have been discussed in detail and highlighted using a prototype model. The proposed study intends to design a novel switching strategy to incorporate a hybrid microgrid in the distribution system effectively. It comprises the following conventional electrical installation with an intelligent microgrid distribution system: i) To implement a renewable-based IPCEA considering the availability of Net Transferable Power (NTP) at DC bus and the rate of converter loss to minimize low efficient power conversion. ii) To effectively manage battery energy within the DC side of the microgrid to minimize the charge cycle and improve its performance.  iii) To decrease the stress on the utility grid by reducing the rate of power exchange.
  • 3.2K
  • 20 Jun 2022
Topic Review
Achieved Status
Achieved status refers to the social position or rank that individuals attain through their own efforts, abilities, or accomplishments within society. Unlike ascribed status, which is assigned at birth or through inherent characteristics, achieved status is earned through education, occupation, skills, or personal achievements, reflecting individuals' merit and contributions to society.
  • 3.2K
  • 02 Feb 2024
Topic Review
Actinopterygii
Actinopterygii (/ˌæktɪnɒptəˈrɪdʒiaɪ/; from actino- 'having rays', and grc πτέρυξ (ptérux) 'wing, fins'), members of which are known as ray-finned fishes, is a clade (traditionally class or subclass) of the bony fishes. They comprise over 50% of living vertebrate species. The ray-finned fishes are so-called because their fins are webs of skin supported by bony or horny spines (rays), as opposed to the fleshy, lobed fins that characterize the class Sarcopterygii (lobe-finned fish). These actinopterygian fin rays attach directly to the proximal or basal skeletal elements, the radials, which represent the link or connection between these fins and the internal skeleton (e.g., pelvic and pectoral girdles). By species count, actinopterygians dominate the vertebrates, and they comprise nearly 99% of the over 30,000 species of fish. They are ubiquitous throughout freshwater and marine environments from the deep sea to the highest mountain streams. Extant species can range in size from Paedocypris, at 8 mm (0.3 in), to the massive ocean sunfish, at 2,300 kg (5,070 lb), and the long-bodied oarfish, at 11 m (36 ft). The vast majority of Actinopterygii (~95%) are teleosts.
  • 3.2K
  • 27 Oct 2022
Topic Review Peer Reviewed
Conductive Heat Transfer in Thermal Bridges
A thermal bridge is a component of a building that is characterized by a higher thermal loss compared with its surroundings. Their accurate modeling is a key step in energy performance analysis due to the increased awareness of the importance of sustainable design. Thermal modeling in architecture and engineering is often not carried out volumetrically, thereby sacrificing accuracy for complex geometries, whereas numerical textbooks often give the finite element method in much higher generality than required, or only treat the case of uniform materials. Despite thermal modeling traditionally belonging exclusively to the engineer’s toolbox, computational and parametric design can often benefit from understanding the key steps of finite element thermal modeling, in order to inform a real-time design feedback loop. In this entry, these gaps are filled and the reader is introduced to all relevant physical and computational notions and methods necessary to understand and compute the stationary energy dissipation and thermal conductance of thermal bridges composed of materials in complex geometries. The overview is a self-contained and coherent expository, and both physically and mathematically as correct as possible, but intuitive and accessible to all audiences. Details for a typical example of an insulated I-beam thermal bridge are provided.
  • 3.2K
  • 26 May 2022
Topic Review
Finale
Finale is the flagship program of a series of proprietary music notation software developed and released by MakeMusic for the Microsoft Windows and macOS operating systems. First released in 1988, version 26 was released in 2018. Finale has been regarded as one of the industry standards for music notation software. Finale is one of a number of types of software used by composers, songwriters and arrangers for creating sheet music, including the score for an entire ensemble (e.g., orchestra, concert band, big band, etc.) and parts for the individual musicians. A scorewriter is to music notation what a word processor is to text, in that they both allow fast corrections (via the "undo" button), flexible editing, easy sharing of content (via the Internet or compact storage media), and production of a clean, uniform layout. In addition, most scorewriters, including Finale, are able to use software-based synthesizers to "play" the sounds of the notated music and record the music—an especially useful feature for novice composers, when no musicians are readily available, or if a composer cannot afford to hire musicians. MakeMusic also offers several less expensive versions of Finale (currently available for Microsoft Windows only), which do not contain all of the main program's features. These include PrintMusic and a freeware program, Finale Notepad, which allows only rudimentary editing. Discontinued versions include Finale Guitar, Notepad Plus, Allegro, SongWriter, and the free Finale Reader.
  • 3.2K
  • 04 Nov 2022
Topic Review
Pi Interaction
In chemistry, π-effects or π-interactions are a type of non-covalent interaction that involves π systems. Just like in an electrostatic interaction where a region of negative charge interacts with a positive charge, the electron-rich π system can interact with a metal (cationic or neutral), an anion, another molecule and even another π system. Non-covalent interactions involving π systems are pivotal to biological events such as protein-ligand recognition.
  • 3.2K
  • 07 Dec 2022
Topic Review
The Complement System in the Central Nervous System
The functions of the complement system to both innate and adaptive immunity through opsonization, cell lysis, and inflammatory activities are well known. In contrast, the role of complement in the central nervous system (CNS) which extends beyond immunity, is only beginning to be recognized as important to neurodevelopment and neurodegeneration. In addition to protecting the brain against invasive pathogens, appropriate activation of the complement system is pivotal to the maintenance of normal brain function.
  • 3.2K
  • 28 Mar 2022
Topic Review
Galileo Probe
The Galileo Probe was an atmospheric-entry probe carried by the main Galileo spacecraft to Jupiter, where it directly entered a hot spot and returned data from the planet. The 339-kilogram (747 lb) probe was built by Hughes Aircraft Company at its El Segundo, California plant, and measured about 1.3 meters (4.3 ft) across. Inside the probe's heat shield, the scientific instruments were protected from extreme heat and pressure during its high-speed journey into the Jovian atmosphere, entering at 47.8 kilometers (29.7 mi) per second. It entered Jupiter on December 7, 1995, 22:04 UTC and stopped functioning at 23:01 UTC, 57 minutes and 36 seconds later.
  • 3.2K
  • 17 Oct 2022
Topic Review
Collaborationism
Collaborationism is cooperation with the enemy against one's country of citizenship in wartime. The term is most often used to describe the cooperation of civilians with the occupying Axis Powers, especially Nazi Germany, Fascist Italy, and Imperial Japan, during World War II. Motivations for collaboration by citizens and organizations included nationalism, ethnic hatred, anti-communism, antisemitism, opportunism, self-defense, or often a combination of these factors. Some collaborators in World War II committed war crimes, crimes against humanity, or atrocities such as the Holocaust. More often collaborators simply "went along to get along," attempting to benefit from the occupation or simply survive. The definition of collaborationism is imprecise and subject to interpretation. Stanley Hoffmann subdivided collaboration into involuntary (reluctant recognition of necessity) and voluntary (an attempt to exploit necessity). According to him, collaborationism can be either servile or ideological. Servile is service to an enemy based on necessity for personal survival or comfort, whereas ideological is advocacy for cooperation with an enemy power. In contrast, Bertram Gordon used the terms "collaborator" and "collaborationist" for non-ideological and ideological collaborations, respectively. James Mace Ward has asserted that, while collaboration is often equated with treason, there was "legitimate collaboration" between civilian internees (mostly Americans) in the Philippines and their Japanese captors for mutual benefit and to enhance the possibilities of the internees to survive. Collaboration with the Axis Powers in Europe and Asia existed in varying degrees in all the occupied countries. Although the United Kingdom and the United States were never occupied, a British dependency, the Channel Islands near France, was under German occupation and thousands of American civilians in Asia were interned by Japan. With the defeat of the Axis, collaborators were often punished by public humiliation, imprisonment, and execution. In France, 10,500 collaborators are estimated to have been executed, some after legal proceedings, others extrajudicially. The opposite of collaborationism in World War II was "resistance", a term which also has a broad range of meaning and interpretations.
  • 3.2K
  • 01 Dec 2022
Topic Review
Turbulence Simulation Approaches
Turbulent flow can be numerically resolved with different levels of accuracy. Many numerical approaches for solving turbulence have been proposed, such as the Reynolds-Averaged Navier–Stokes (RANS), the Large Eddy Simulation (LES), and Direct Numerical Simulation (DNS) approaches. Among these numerical methods, the RANS approach, specifically the Eddy Viscosity Model (EVM), is widely used for calculating turbulent flows thanks to its relatively high accuracy in predicting the mean flow features and its more limited computational demands. However, this approach suffers from several weaknesses, e.g., compromised accuracy and uncertainties due to assumptions in the model construction and insufficient incorporation of the fluid physics. In the LES approach, the whole eddy range is separated into two parts, namely, the large-scale eddy and subgrid-scale (SGS) eddy. The former can be directly resolved, while the latter is computed using the SGS model. As the computing power rapidly increases, this approach is extensively used to study turbulence physics and to resolve low-to-medium Reynolds number flows.
  • 3.2K
  • 13 Sep 2021
Topic Review
Digital Twins for Additive Manufacturing
A brief state-of-the-art  introduction of digital twins for additive manufacturing.
  • 3.2K
  • 17 Feb 2021
Topic Review
Enzymatic Interesterification
Enzymatic Interesterification (EIE) is the catalytic reaction that occurs when an enzyme is introduced into oil and rearranges the fatty acids on the glycerol backbone of a triglyceride. Triglycerides are either liquid or solid at room temperature. The rearrangement of the fatty acids that occurs with enzymatic interesterification provides structure and functionality to triglycerides at room temperature. This process adjusts the melting properties, increasing functionality and plasticity in food production applications. One of five different ways of altering melting property profiles, enzymatic interesterification is unlike the more widely used partial hydrogenation method in that it produces no trans fatty acids and lowers saturated fat content.
  • 3.2K
  • 12 Oct 2022
Topic Review
Moz (Marketing Software)
Moz is a software as a service (SaaS) company based in Seattle that sells inbound marketing and marketing analytics software subscriptions. It was founded by Rand Fishkin and Gillian Muessig in 2004 as a consulting firm and shifted to SEO software development in 2008. The company hosts a website that includes an online community of more than one million globally based digital marketers and marketing related tools. Moz offers SEO tools that includes keyword research, link building, site audits, and page optimization insights in order to help companies to have a better view of the position they have on search engines and how to improve their ranking. The company also developed the most commonly used algorithm to determine Domain Authority, which is a score between 1-100, that is often used by many SEO companies to estimate a website's overall viability with the search engines.
  • 3.2K
  • 18 Oct 2022
Topic Review Peer Reviewed
Understanding the Education Policymaking Process in the United States
Considering the broad implications of education policy, it is important to understand the various facets of the education policymaking process. There are different stages of the process (i.e., issue definition, policy adoption, implementation, and evaluation) which, at times, can be difficult to comprehend when considering the competing goals of education and multiple stakeholders. Understanding the process can also be difficult due to the historical and contemporary influences of power and racism at play within and outside of society’s educational landscape—especially within the United States context. The process is highlighted as an iterative one which provides room for adjustments and changes across different contexts. By navigating the complex landscape of education policymaking, one can be better equipped to understand the intricacies of policymaking and its transformative capacity.
  • 3.2K
  • 02 Jan 2024
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