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Topic Review
Community
Community refers to a social group or a gathering of people who share common interests, values, beliefs, or goals and who interact with each other within a specific geographic area or virtual space. Communities can take various forms and sizes, ranging from small, close-knit neighborhoods to large, global online communities. Whether formed around geographic proximity, cultural ties, or common hobbies, communities play a vital role in shaping social interactions, providing support, and contributing to the overall well-being of individuals. Recognizing the significance of communities is essential for fostering a sense of connection, understanding, and shared humanity in the complex fabric of human societies.
  • 5.0K
  • 25 Jan 2024
Topic Review
Multi-Robot Systems
When applications require the integration and collaborative efforts of several robots, the collective of robots is referred to as a Multi-Robot System (MRS).
  • 5.0K
  • 17 Dec 2021
Topic Review
Outsourcing in Supply Chain Management
Outsourcing is one of the major challenges for production firms in the current supply chain management (SCM) due to limited skilled workers and technology resources. There are too many parameters involved in the strategic decisions of the outsourcing level, quantity, quality, and cost. 
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  • 27 Apr 2022
Topic Review
Composition of Barley
Barley (Hordeum vulgare L.) is one such feed ingredient, the use of which remains limited in poultry diets due to its low metabolisable energy, presence of anti-nutritive, soluble non-starch polysaccharides and consequent inter-cultivar variability. 
  • 5.0K
  • 01 Nov 2022
Topic Review
National Liberal Club
The National Liberal Club (NLC) is a London private members' club, open to both men and women. It was established by William Ewart Gladstone in 1882 to provide club facilities for Liberal Party campaigners among the newly enlarged electorate following the Third Reform Act in 1884, and was envisioned as a more accessible version of a traditional London club. The club's Italianate building on the Embankment of the river Thames is the second-largest club-house built in London. (It was the largest ever at the time, but was superseded by the later Royal Automobile Club building completed in 1911.) Designed by Alfred Waterhouse, it was completed in 1887. Its facilities include a dining room, a bar, function rooms, a billiards room, a smoking room, a library and an outdoor riverside terrace. It is located at Whitehall Place, close to the Houses of Parliament, the Thames Embankment and Trafalgar Square.
  • 5.0K
  • 29 Nov 2022
Topic Review
Benzimidazole
Benzimidazole is an important heterocyclic fragment, present in many biologically active compounds with a great variety of therapeutic purposes. Most of the benzimidazole activities are explained through the existence of 1,3-tautomeric equilibrium. As the binding affinity of each tautomer to a protein target depends on an established bioactive conformation, the effect of tautomers on the ligand protein binding mechanism is determinant.
  • 5.0K
  • 27 Oct 2022
Topic Review
NTC-Properties of a Geomorphic Clinoptilolite Sample
Negative temperature coefficient (NTC) materials are usually based on ceramic semiconductors, and electrons are involved in their transport mechanism. A new type of NTC material, adequate for alternating current (AC) applications, is represented by zeolites. Indeed, zeolites are single charge carrier ionic conductors with a temperature-dependent electrical conductivity. In particular, electrical transport in zeolites is due to the monovalent charge-balancing cations, like K+, capable of hopping between negatively charged sites in the aluminosilicate framework. Owing to the highly non-linear electrical behavior of the traditional electronic NTC materials, the possibility to have alternative types of materials, showing linearity in their electrical behavior, is very desirable. Among different zeolites, natural clinoptilolite has been selected for investigating NTC behavior since it is characterized by high zeolite content, a convenient Si/Al atomic ratio, good mechanical strength due to its compact microstructure, and low toxicity. Clinoptilolite has shown a rapid and quite reversible impedance change under heating, characterized by a linear dependence on temperature.
  • 5.0K
  • 11 Jul 2024
Topic Review
Application of Natural Coagulants in Water Treatment
The most popular and conventional method for water treatment (WT)  is the use of chemical-based coagulants including ferric chloride (FeCl3), alum (AlCl3), synthetic polymers (polyacrylamide), and poly aluminum. However, the use of this approach is not sustainable as it leads to the production of a large volume of non-biodegradable sludge. Natural coagulants, on the other hand, serve as an alternative sustainable strategy for the removal of turbidity and WT, as they are cheap, safe, and biodegradable. Natural coagulants are derived from three major sources, which include plants, animals, and microorganisms.
  • 5.0K
  • 02 Dec 2022
Topic Review
Mental Chronometry
Mental chronometry is the study of reaction time (RT; also referred to as "response time") in perceptual-motor tasks to infer the content, duration, and temporal sequencing of mental operations. Mental chronometry is one of the core methodological paradigms of human experimental and cognitive psychology, but is also commonly analyzed in psychophysiology, cognitive neuroscience, and behavioral neuroscience to help elucidate the biological mechanisms underlying perception, attention, and decision-making across species. Mental chronometry uses measurements of elapsed time between sensory stimulus onsets and subsequent behavioral responses. It is considered an index of processing speed and efficiency indicating how fast an individual can execute task-relevant mental operations. Behavioral responses are typically button presses, but eye movements, vocal responses, and other observable behaviors can be used. RT is constrained by the speed of signal transmission in white matter as well as the processing efficiency of neocortical gray matter. Conclusions about information processing drawn from RT are often made with consideration of task experimental design, limitations in measurement technology, and mathematical modeling.
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  • 10 Oct 2022
Topic Review
WannaCry Ransomware Attack
The WannaCry ransomware attack was a worldwide cyberattack in May 2017 by the WannaCry ransomware cryptoworm, which targeted computers running the Microsoft Windows operating system by encrypting data and demanding ransom payments in the Bitcoin cryptocurrency. It propagated through EternalBlue, an exploit developed by the United States National Security Agency (NSA) for older Windows systems. EternalBlue was stolen and leaked by a group called The Shadow Brokers a month prior to the attack. While Microsoft had released patches previously to close the exploit, much of WannaCry's spread was from organizations that had not applied these, or were using older Windows systems that were past their end-of-life. These patches were imperative to organizations' cyber security but many were not implemented due to ignorance of their importance. Some have claimed a need for 24/7 operation, aversion to risking having formerly working applications breaking because of patch changes, lack of personnel or time to install them, or other reasons. The attack began at 07:44 UTC on 12 May 2017 and was halted a few hours later at 15:03 UTC by the registration of a kill switch discovered by Marcus Hutchins. The kill switch prevented already infected computers from being encrypted or further spreading WannaCry. The attack was estimated to have affected more than 200,000 computers across 150 countries, with total damages ranging from hundreds of millions to billions of United States dollar . Security experts believed from preliminary evaluation of the worm that the attack originated from North Korea or agencies working for the country. In December 2017, the United States and United Kingdom formally asserted that North Korea was behind the attack. A new variant of WannaCry forced Taiwan Semiconductor Manufacturing Company (TSMC) to temporarily shut down several of its chip-fabrication factories in August 2018. The virus spread to 10,000 machines in TSMC's most advanced facilities.
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  • 14 Oct 2022
Topic Review
Bovine Colostrum in the Treatment of Cancer
Bovine colostrum (BC) has attracted the interest of numerous researchers investigating its anti-cancer potential in humans. Dressings loaded with BC are beneficial in treating chronic wounds and diabetic foot ulcers. Lactoferrin, a glycoprotein with potent anti-oxidant, anti-inflammatory, anti-cancer, and anti-microbial effects, is abundant in BC. The BC pills successfully promote the regression of low-grade cervical intraepithelial neoplasia when administered intravaginally. The biological, genetic, and molecular mechanisms driving BC remain to be determined. Oral BC supplements are generally well-tolerated, but some flatulence and nausea may happen. 
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  • 21 Dec 2022
Topic Review
Messiah
In Abrahamic religions, a messiah or messias (Hebrew: מָשִׁיחַ‎, romanized: māšîaḥ; Greek: μεσσίας, romanized: messías, Arabic: مسيح) is a saviour or liberator of a group of people. The concepts of mashiach, messianism, and of a Messianic Age originated in Judaism, and in the Hebrew Bible; a mashiach (messiah) is a king or High Priest traditionally anointed with holy anointing oil. Messiahs were not exclusively Jewish: the Book of Isaiah refers to Cyrus the Great, king of the Achaemenid Empire, as a messiah for his decree to rebuild the Jerusalem Temple. Ha mashiach (המשיח, 'the Messiah', 'the anointed one'),[lower-alpha 1] often referred to as melekh mashiach (מלך המשיח 'King Messiah'), is to be a human leader, physically descended from the paternal Davidic line through King David and King Solomon. He is thought to accomplish predetermined things in only one future arrival, including the unification of the tribes of Israel, the gathering of all Jews to Eretz Israel, the rebuilding of the Temple in Jerusalem, the ushering in of a Messianic Age of global universal peace, and the annunciation of the world to come. In Christianity, the Messiah is called the Christ, from Greek: χριστός, romanized: khristós, translating the Hebrew word of the same meaning. The concept of the Messiah in Christianity originated from the Messiah in Judaism. However, unlike the concept of the Messiah in Judaism, Jesus is considered by Christians additionally to be the Son of God. Christ became the accepted Christian designation and title of Jesus of Nazareth, because Christians believe that the messianic prophecies in the Old Testament were fulfilled in his mission, death, and resurrection. These specifically include the prophecies of him being descended from the Davidic line, and being declared King of the Jews which happened on the day of his crucifixion. They believe that Christ will fulfill the rest of the messianic prophecies, specifically that he will usher in a Messianic Age and the world to come at his Second Coming. Some Christian denominations, such as Catholicism, instead believe in amillenialist theology, but the Catholic Church has not adopted this term. In Islam, Jesus was a prophet and the Masîḥ (مسيح), the Messiah sent to the Israelites, and he will return to Earth at the end of times, along with the Mahdi, and defeat al-Masih ad-Dajjal, the false Messiah. In Ahmadiyya theology, these prophecies concerning the Mahdi and the second coming of Jesus have been fulfilled in Mirza Ghulam Ahmad (1835–1908), the founder of the Ahmadiyya Movement, and the terms 'Messiah' and 'Mahdi' are synonyms for one and the same person. In Chabad messianism, Yosef Yitzchak Schneersohn (r. 1920–1950), sixth Rebbe (spiritual leader) of Chabad Lubavitch, and Menachem Mendel Schneerson (1902–1994), seventh Rebbe of Chabad, are Messiah claimants. Resembling early Christianity, the deceased Schneerson is believed to be the Messiah among some adherents of the Chabad movement; his second coming is believed to be imminent.
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  • 11 Nov 2022
Topic Review
Dog-Whistle Politics
Dog-whistle politics is the use of coded or suggestive language in politics to garner support from a wider audience for a candidate. Dog whistles serve the purpose of attracting the intended political audience without garnering ire with opposing audiences, similar to ultrasonic dog whistles used in sheepherding. The concept of dog-whistles has similarities to the concept of code words. Accusations of dog-whistling may be used to accuse an individual of expressing a "hidden" meaning when no such message was intended and the actual words used are innocuous. Such accusations can be a form of political correctness or gaslighting and are by their nature impossible to refute. An example is the accusation that using the phrase "international banks" is evidence of anti-Semitism. When it exists, a dog-whistle is a type of doublespeak used in political messaging. Dog whistles work by employing language that has normal meanings to the majority, but can be implied or loaded to mean very specific things to intended recipients. One example commonly believed to be dog whistling may include is the use of 'family values' as a signal to Christians that the candidate is Christian and would support policies related to Christian values without raising flags among the non-religious who might oppose a Christian candidate. This type of dog whistle would serve the purpose of gaining popularity with Christians without losing popularity with non-Christians.
  • 5.0K
  • 25 Nov 2022
Topic Review
Gene Therapy
Gene therapy is an experimental technique that uses genes to treat or prevent disease. 
  • 5.0K
  • 24 Dec 2020
Topic Review
Physical Body
In physics, a physical body or physical object (or simply a body or object) is an identifiable collection of matter, which may be constrained by an identifiable boundary, and may move as a unit by translation or rotation, in 3-dimensional space. In common usage, an object is a collection of matter within a defined contiguous boundary in 3-dimensional space. The boundary must be defined and identified by the properties of the material. The boundary may change over time. The boundary is usually the visible or tangible surface of the object. The matter in the object is constrained (to a greater or lesser degree) to move as one object. The boundary may move in space relative to other objects that it is not attached to (through translation and rotation). An object's boundary may also deform and change over time in other ways. Also in common usage, an object is not constrained to consist of the same collection of matter. Atoms or parts of an object may change over time. An object is defined by the simplest representation of the boundary consistent with the observations. However the laws of Physics only apply directly to objects that consist of the same collection of matter. Each object has a unique identity, independent of any other properties. Two objects may be identical, in all properties except position, but still remain distinguishable. In most cases the boundaries of two objects may not overlap at any point in time. The property of identity allows objects to be counted. Examples of models of physical bodies include, but are not limited to a particle, several interacting smaller bodies (particles or other), and continuous media. The common conception of physical objects includes that they have extension in the physical world, although there do exist theories of quantum physics and cosmology which may challenge this. In modern physics, "extension" is understood in terms of the spacetime: roughly speaking, it means that for a given moment of time the body has some location in the space, although not necessarily a point. A physical body as a whole is assumed to have such quantitative properties as mass, momentum, electric charge, other conserving quantities, and possibly other quantities. A body with known composition and described in an adequate physical theory is an example of physical system.
  • 5.0K
  • 12 Dec 2022
Topic Review
Messerschmitt Me 323
The Messerschmitt Me 323 Gigant ("Giant") was a German military transport aircraft of World War II. It was a powered variant of the Me 321 military glider and was the largest land-based transport aircraft of the war. A total of 213 are recorded as having been made, 15 being converted from the Me 321.
  • 5.0K
  • 17 Oct 2022
Topic Review
Electronic Trading
Electronic or scripless trading, sometimes called e-trading or paperless trading is a method of trading securities (such as stocks, and bonds), foreign exchange or financial derivatives electronically. Information technology is used to bring together buyers and sellers through an electronic trading platform and network to create virtual market places. They can include various exchange-based systems, such as NASDAQ, NYSE Arca and Globex, as well as other types of trading platforms, such as electronic communication networks (ECNs), alternative trading systems, crossing networks and "dark pools". Electronic trading is rapidly replacing human trading in global securities markets. Electronic trading is in contrast to older floor trading and phone trading and has a number of advantages, but glitches and cancelled trades do still occur.
  • 5.0K
  • 14 Oct 2022
Topic Review
CYP3A4
CYP3A4 is a low specificity isoenzyme of the CYPs family, which contributes to the metabolism of approximately 50% of all marketed drugs. Induction or inhibition of CYP3A4 activity results in the varied oral bioavailability and unwanted drug-drug, drug-food, and drug-herb interactions.
  • 5.0K
  • 01 Sep 2021
Topic Review
Psychoneuroendocrineimmunology (PNEI)
Psychoneuroendocrineimmunology (PNEI) brings together knowledge acquired since the 1930s from endocrinology, immunology, neuroscience, and psychology. With PNEI, a model of research and interpretation of health and disease is emerging, which sees the human body as a structured and interconnected unit, where the psychological and biological systems are mutually coordinated. In the PNEI view, many factors could influence mental health, with the endocrine system involved in mediating the effects of environmental stress on mental health and inflammation in the onset and course of psychiatric disorders as a result of individual and collective conditions and behaviors.  PNEI paradigm configures the possibilities of going beyond the historical and philosophical contrast between mind and body, as well as the scientific antithesis of the twentieth century, between medicine and psychology, overcoming their respective reductionism, which assigns the body to the first and the psyche to the second.   
  • 5.0K
  • 11 Aug 2021
Topic Review
Evolution of Digital Twins
A digital twin can be described as a digital replica of a real-world entity. It simulates the physical state and maybe the biological state and behavior of the real-world entity based on input data. It helps in predicting, optimizing, and improving decision making. It has revolutionized the industrial world, particularly the manufacturing industry, construction and healthcare sector, smart cities, and energy industry. 
  • 5.0K
  • 13 May 2021
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