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Topic Review
Vulnerabilities and Challenges in IoT-Enabled Smart Grids
Internet of Things (IoT) has appeared as one of the enabling technologies for smart energy grids by delivering abundant cutting-edge solutions in various domains, including critical infrastructures. As IoT-enabled devices continue to flourish, one of the major challenges is security issues, since IoT devices are connected through the Internet, thus making the smart grids vulnerable to a diverse range of cyberattacks. 
  • 2.8K
  • 25 Oct 2022
Topic Review
Molecular and Functional Properties of Acid-Sensing Ion Channels
Acid-sensing ion channels (ASICs) are voltage-independent H+-gated cation channels largely expressed in the nervous system of rodents and humans, and involved in pain sensing and associated pathologies. At least six isoforms (ASIC1a, 1b, 2a, 2b, 3 and 4) associate into homotrimers or heterotrimers to form functional channels with highly pH-dependent gating properties.
  • 2.8K
  • 25 Oct 2022
Topic Review
Hoverfly
Hoverflies, also called flower flies or syrphid flies, make up the insect family Syrphidae. As their common name suggests, they are often seen hovering or nectaring at flowers; the adults of many species feed mainly on nectar and pollen, while the larvae (maggots) eat a wide range of foods. In some species, the larvae are saprotrophs, eating decaying plant and animal matter in the soil or in ponds and streams. In other species, the larvae are insectivores and prey on aphids, thrips, and other plant-sucking insects. Insects such as aphids are considered a crop pest, and therefore the aphid-eating larvae of some hover flies serve as an economically (as well as ecologically) important predator and even potential agents for use in biological control, while the adults may be pollinators. About 6,000 species in 200 genera have been described. Hoverflies are common throughout the world and can be found on all continents except Antarctica. Hoverflies are harmless to most mammals, though many species are mimics of stinging wasps and bees, a mimicry which may serve to ward off predators.
  • 2.8K
  • 16 Nov 2022
Topic Review
Asphaltene
Asphaltenes is the heaviest and most polar fraction of petroleum not yet wery well characterized and only presently define by they solubility.
  • 2.8K
  • 29 Aug 2021
Topic Review
Aggregation-Induced Emission Active Materials
The emergence and development of aggregation induced emission (AIE) have attracted worldwide attention due to its unique photophysical phenomenon and for removing the obstacle of aggregation-caused quenching (ACQ) which is the most detrimental process thereby making AIE an important and promising aspect in various fields of fluorescent material, sensing, bioimaging, optoelectronics, drug delivery system, and theranostics. hexaphenylsilole (HPS) is the common example of the AIE active molecule which exhibits enhancement in fluorescence in an aggregate state. The motions involved, such as restriction of intramolecular motion along with rotation and vibration mechanisms in the AIE active phenomenon, are well explained and accepted. The AIE luminogens have high photostability, large stoke shift, a photobleaching resistance property, and show high sensing reproducibility. This characteristic makes luminogens a promising candidate for sensing application
  • 2.8K
  • 19 Apr 2022
Topic Review
Caduceus as a Symbol of Medicine
The caduceus is the traditional symbol of Hermes and features two snakes winding around an often winged staff. It is often used as a symbol of medicine, especially in the United States, despite its ancient and consistent associations with trade, liars, thieves, eloquence, negotiation, alchemy, and wisdom. The modern use of the caduceus as a symbol of medicine became established in the United States in the late 19th and early 20th century as a result of well-documented mistakes, misunderstandings of symbology and classical culture. The correct symbol for medicine is the Rod of Asclepius, which has only one snake and no wings.
  • 2.8K
  • 02 Nov 2022
Topic Review
Morley's Trisector Theorem
In plane geometry, Morley's trisector theorem states that in any triangle, the three points of intersection of the adjacent angle trisectors form an equilateral triangle, called the first Morley triangle or simply the Morley triangle. The theorem was discovered in 1899 by Anglo-American mathematician Frank Morley. It has various generalizations; in particular, if all of the trisectors are intersected, one obtains four other equilateral triangles.
  • 2.8K
  • 17 Nov 2022
Topic Review
TNF
TNF is a gene that plays an essential role in the body, it affects both immune response and inflammation. The gene encodes a protein called tumour necrosis factor alpha (TNFα) [1].
  • 2.8K
  • 05 Nov 2020
Topic Review
Amsterdam (VOC Ship)
The Amsterdam (Dutch pronunciation: [ˌɑmstərˈdɑm] (listen)) was an 18th-century cargo ship of the Dutch East India Company (Dutch: Vereenigde Oost-Indische Compagnie; VOC). The VOC was established in 1602. The ship started its maiden voyage from Texel to Batavia on 8 January 1749, but was wrecked in a storm on the English Channel on 26 January 1749. The shipwreck was discovered in 1969 in the bay of Bulverhythe, near Hastings on the English south coast, and is sometimes visible during low tides. The wreck site is protected under the Protection of Wrecks Act since 1974. Some of the findings from the site are in The Shipwreck Museum in Hastings. A replica of the ship is on display in Amsterdam.
  • 2.8K
  • 01 Dec 2022
Topic Review
Vertical Axis Wind Turbine
A vertical-axis wind turbines (VAWT) is a type of wind turbine where the main rotor shaft is set transverse to the wind (but not necessarily vertically) while the main components are located at the base of the turbine. This arrangement allows the generator and gearbox to be located close to the ground, facilitating service and repair. VAWTs do not need to be pointed into the wind, which removes the need for wind-sensing and orientation mechanisms. Major drawbacks for the early designs (Savonius, Darrieus and giromill) included the significant torque variation or "ripple" during each revolution, and the large bending moments on the blades. Later designs addressed the torque ripple issue by sweeping the blades helically (Gorlov type). A vertical axis wind turbine has its axis perpendicular to the wind streamlines and vertical to the ground. A more general term that includes this option is "transverse axis wind turbine" or "cross-flow wind turbine." For example, the original Darrieus patent, US Patent 1835018, includes both options. Drag-type VAWTs such as the Savonius rotor typically operate at lower tipspeed ratios than lift-based VAWTs such as Darrieus rotors and cycloturbines.
  • 2.8K
  • 20 Oct 2022
Topic Review
Abecedarian: An Impossible Model Preschool Program
The primary goal of pre- and early-school programs is to prevent young children from socioeconomically disadvantaged backgrounds to start school already with educational delays. The programs offer compensatory stimulation activities which are supposed to be not available in the home situation; the focus is on language development. Proponents claim that such programs can be effective, provided they are of high quality. The belief in their success is very much based on the outcomes of a few so-called model programs from the 1960s and 1970s. One of these programs is the Carolina Abecedarian Project, a small single-site project started in 1972. Four cohorts of in total 111 children and their poor, Black parents participated in this experiment with a random allocated treatment and control group. The children were followed from 6 weeks after birth to 6 years of age, that is, when they entered school. They were regularly tested and observed, and then after the program had ended again until they were 40 years of age.
  • 2.8K
  • 14 Jan 2024
Topic Review
Targeted Killing
Targeted killing is defined as a form of murder or assassination carried out by governments. Some analysts believe that it is a modern euphemism for the assassination of a prominent individual by a state organization or institution outside a judicial procedure or a battlefield. Since the late 20th century, the legal status of targeted killing has become a subject of contention within and between various nations. Historically, at least since the mid-eighteenth century, Western thinking has generally considered the use of assassination as a tool of statecraft to be illegal. Some academics, military personnel and officials describe targeted killing as legitimate within the context of self-defense, when employed against terrorists or combatants engaged in asymmetrical warfare. They argue that drones are more humane and more accurate than manned vehicles, and that targeted or "named killings" do not occur in any context other than a declared state of war. Some twenty-six members of United States Congress, with academics such as Gregory Johnsen and Charles Schmitz, media figures (Jeremy Scahill, Glenn Greenwald, James Traub), civil rights groups (i.e. the American Civil Liberties Union) and ex-CIA station chief in Islamabad, Robert Grenier, have criticized targeted killings as a form of extrajudicial killings, which may be illegal under both United States and international law. According to statistical analyses provided by Reprieve, nine children have been killed for every adult the United States has tried to assassinate, and, in its numerous failed attempts to kill Ayman al-Zawahri, the CIA killed 76 children and 29 adult bystanders. Scholars are also divided as to whether targeted killings are an effective counterterrorism strategy.
  • 2.8K
  • 25 Nov 2022
Topic Review
Micronutrient Effects on Testosterone Concentrations
This entry discusses the role of both micro and macronutrients on endogenous testosterone production
  • 2.8K
  • 02 Dec 2021
Topic Review
Locative Media
Locative media or location-based media (LBM) are media of communication functionally bound to a location. The physical implementation of locative media, however, is not bound to the same location to which the content refers. Location-based media delivers multimedia and other content directly to the user of a mobile device dependent upon their location. Location information determined by means such as mobile phone tracking and other emerging real-time locating system technologies like Wi-Fi or RFID can be used to customize media content presented on the device. Locative media are digital media applied to real places and thus triggering real social interactions. While mobile technologies such as the Global Positioning System (GPS), laptop computers and mobile phones enable locative media, they are not the goal for the development of projects in this field.
  • 2.8K
  • 24 Oct 2022
Topic Review
Physiotherapy treatment for Dysphagia
Dysphagia (DP) is a condition characterised by the loss of swallowing function, due to the alteration of the oral route and of the pharyngeal and esopharyngeal phases, hindering or impeding the passage of the alimentary bolus from the mouth to the stomach. DP affects 13% of people over 65 years of age and approximately 33% of people over 80 years of age, although it has a prevalence of 55% after a stroke. The most common complications associated with this disorder are: suffocation, aspiration pneumonia, malnutrition and decreased physical activity; these must be addressed with special care and individually.
  • 2.8K
  • 27 Oct 2020
Topic Review
Proteins/Enzymes from Animal Sources
Animal proteins are good sources of protein for human, due to the composition of necessary amino acids. The quality of food depends significantly on the properties of protein inside, especially the gelation, transportation, and antimicrobial properties. Interestingly, various kinds of molecules co-exist with proteins in foodstuff, and the interactions between these can significantly affect the food quality.
  • 2.8K
  • 29 Sep 2021
Topic Review
Melissa officinalis
Melissa officinalis is a medicinal plant rich in biologically active compounds which is used worldwide for its therapeutic effects. Chemical studies on its composition have shown that it contains mainly flavonoids, terpenoids, phenolic acids, tannins, and essential oil. The main active constituents of Melissa officinalis are volatile compounds (geranial, neral, citronellal and geraniol), triterpenes (ursolic acid and oleanolic acid), phenolic acids (rosmarinic acid, caffeic acid and chlorogenic acid), and flavonoids (quercetin, rhamnocitrin, and luteolin). 
  • 2.8K
  • 06 Apr 2022
Topic Review
Nuda
Nuda is a class of ctenophores or comb jellies. The class contains a single family, Beroidae, with two genera, Beroe and Neis, and the group is more commonly referred to as the "beroids". They are distinguished from other comb jellies by the complete absence of tentacles, in both juvenile and adult stages. Beroe is found in all the world's oceans and seas, and the monotypic Neis occurs only near Australia; all beroids are free-swimmers that form part of the plankton.
  • 2.8K
  • 19 Oct 2022
Topic Review
Lung Cancer
Currently, lung cancer is a disease that acquired an impressive change in the clinical manangement due to the recent inovations regarding targeted therapies and immunne check point inhibitors.
  • 2.8K
  • 17 Apr 2021
Topic Review
Magnetoencephalography
Magnetoencephalography (MEG) is a functional brain imaging technique that measures magnetic flux on the surface of the head associated with underlying neuronal electrical dipoles.
  • 2.8K
  • 08 Mar 2021
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