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Topic Review
Conjugate Acid
A conjugate acid, within the Brønsted–Lowry acid–base theory, is a chemical compound formed when an acid donates a proton (H+) to a base—in other words, it is a base with a hydrogen ion added to it, as in the reverse reaction it loses a hydrogen ion. On the other hand, a conjugate base is what is left over after an acid has donated a proton during a chemical reaction. Hence, a conjugate base is a species formed by the removal of a proton from an acid, as in the reverse reaction it is able to gain a hydrogen ion. Because some acids are capable of releasing multiple protons, the conjugate base of an acid may itself be acidic. In summary, this can be represented as the following chemical reaction: Johannes Nicolaus Brønsted and Martin Lowry introduced the Brønsted–Lowry theory, which proposed that any compound that can transfer a proton to any other compound is an acid, and the compound that accepts the proton is a base. A proton is a nuclear particle with a unit positive electrical charge; it is represented by the symbol H+ because it constitutes the nucleus of a hydrogen atom, that is, a hydrogen cation. A cation can be a conjugate acid, and an anion can be a conjugate base, depending on which substance is involved and which acid–base theory is the viewpoint. The simplest anion which can be a conjugate base is the solvated electron whose conjugate acid is the atomic hydrogen.
  • 3.3K
  • 28 Nov 2022
Topic Review
Attention-Setting and Human Mental Function: An Introduction
Adapted from the longer article  [url link to original article] This entry provides an introduction to experimental research on top-down human attention in complex scenes, written for cognitive scientists in general. The entry emphasizes effects of human goals and intention on mental function, measured with behavioral experiments. Top-down attention is described as attention-setting — an open category of skillful mental actions that initiate particular task sets, which are assembled from a wide range of mental processes. Experimental research on visual search, task switching, and temporal attention is outlined and extended to the important human time scale of seconds.
  • 3.3K
  • 21 Jun 2022
Topic Review
Twinning-Induced Plasticity
Twinning-induced plasticity (TWIP) steel is a second-generation advanced high strength steel grade developed for automotive applications. TWIP steels exhibit an excellent combination of strength and ductility, mainly originating from the activation of deformation twinning.
  • 3.3K
  • 23 Feb 2021
Topic Review
Plug-in Electric Vehicles in France
The adoption of plug-in electric vehicles in the France is actively supported by the French government through a bonus-malus system through which provides subsidies towards the purchase of all-electric vehicles and plug-in hybrids with low CO2 emissions. The government also provides non-monetary incentives; subsidies for the deployment of charging infrastructure; and long term regulations with specific targets. Additionally, France passed a law in December 2019 to phase out sales of cars that burn fossil fuels by 2040. (As of September 2021), there were 687,876 light-duty plug-in electric vehicles in use in France, consisting of 453,143 all-electric passenger cars and commercial vans, and 234,733 plug-in hybrids. Of these, over 50,000 were fully electric light commercial vehicles. The split among type of powertrain is influenced by the rules of the government subsidies, which favors pure electric vehicles over plug-in hybrids. The plug-in passenger car segment attained a market share of 0.5% in 2013, rose to 1.2% in 2015, 2.2% in 2018, and climbed to 2.8% in 2019. Despite the global strong decline in car sales brought by the COVID-19 pandemic, plug-in electric car sales in France during the first six months of 2020 achieved a record sales volume of 65,267 units, and a market share of 9.1%. (As of December 2019), France listed as the world's second largest market after China for light-duty electric commercial vehicles, with a stock of 49,340 utility vans in circulation. The market share of all-electric utility vans attained 1.2% of new vans registered in 2014, rose to 1.8% in 2018, but declined to 1.7% in 2019. The Renault Zoe has led all-electric car sales in France since 2013, and is the country's all-time best selling plug-in electric car with more than 100,000 units registered through June 2020. The electric utility van segment has been led by the Renault Kangoo Z.E. with over 21,000 units sold through February 2019.
  • 3.3K
  • 28 Nov 2022
Topic Review
CHCP (DOS Command)
This article presents a list of commands used by DOS operating systems, especially as used on x86-based IBM PC compatibles (PCs). Other DOS operating systems are not part of the scope of this list. In DOS, many standard system commands were provided for common tasks such as listing files on a disk or moving files. Some commands were built into the command interpreter, others existed as external commands on disk. Over the several generations of DOS, commands were added for the additional functions of the operating system. In the current Microsoft Windows operating system, a text-mode command prompt window, cmd.exe, can still be used.
  • 3.3K
  • 30 Nov 2022
Topic Review Peer Reviewed
COVID-19 Pandemic as a Transitional Event: From the Perspective of the Transition Theory
The COVID-19 pandemic has affected every aspect of people’s lives across the globe. It is also unique in the way it changed their lives. In this entry, a framework, the Transition Theory, is outlined, which is used to interpret the transitional properties of this pandemic, the ways it differs from other transitional events, and how it impacts the lives and well-being of the individuals. The prediction is that people might consider the pandemic as an important life transition event only if there is a little similarity between their pre-pandemic and post-pandemic lives. Individual differences also need to be considered as those whose lives have been directly affected by the pandemic experience a greater COVID-related change (e.g., job loss vs. no job loss). Lastly, the transitional impact of the pandemic might have a strong link with people’s mental outcomes. These notions call for a longitudinal approach to get an accurate understanding of the pandemic experience while this world-changing event unfolds rather than in retrospect.
  • 3.3K
  • 21 Sep 2022
Topic Review
Industry 6.0 and Their Implementation in AEC Sector
The Architecture, Engineering, and Construction (AEC) Industry 6.0 is the sixth transformative phase of the architectural, engineering, and construction sector, built on Industry 5.0. Industry 6.0 pioneers advancements in quantum computing, nanotechnology, artificial intelligence, and cloud-based energy solutions. Harmonization facilitates design, building, and maintenance processes, improving efficiency, accuracy, and sustainability. Construction has changed, like the 5.0 framework. Industry 5.0 uses AI and robotics to boost productivity, creativity, and supply chain alignment. 
  • 3.3K
  • 19 Sep 2023
Topic Review
Horizontal transfer of Resistance Genes
Emergence and rapid spread of antibiotic resistance has posed a serious threat to public health and undermined decades of progress made in the fight against bacterial infections. Plasmid-mediated horizontal tranfer of antibiotic resistance genes (ARGs) has been recognized as the most dominant dissemination pathway of ARGs in humans, animals and environmental settings. In particular, four pathways including conjugation, transformation, transduction and vesiduction account for horizontal transfer of antibiotic resistance genes. A better understanding of these pathways and underlying mechanisms would contribute to developing more effective stategies to control the prevalence of ARGs.
  • 3.3K
  • 14 Aug 2020
Topic Review
Resonant cavity antennas technology
       Resonant cavity antennas (RCAs) are suitable candidates to achieve high directivity with a low-cost and easy fabrication process. The stable functionality of the RCAs over different frequency bands, as well as, their pattern reconfigurability make them an attractive antenna structure for the next-generation wireless communication systems, i.e., fifth-generation (5G). The variety of designs and analytical techniques regarding the main radiator and partially reflective surface (PRS) configurations allow dramatic progress and advances in the area of RCAs. Adding different functionalities in a single structure by using additional layers is one appealing feature of the RCA structures, which has opened the various fields of studies toward 5G applications. This paper reviews the recent advances on the RCAs along with the analytical methods, and various capabilities that make them suitable to be used in 5G communication systems. 
  • 3.3K
  • 27 Aug 2020
Topic Review
Disorders of Sex Development
Disorders of sex development (DSDs), also known as differences in sex development, diverse sex development and variations in sex characteristics (VSC), are medical conditions involving the reproductive system. More specifically, these terms refer to "congenital conditions in which development of chromosomal, gonadal, or anatomical sex is atypical." The term has been controversial, and research has shown that affected people experience a negative impact, with the terminology impacting choice and utilization of health care providers. The World Health Organization and many medical journals still reference DSDs as intersex traits or conditions. The Council of Europe and Inter-American Commission on Human Rights have called for a review of medical classifications that unnecessarily medicalize intersex traits.
  • 3.3K
  • 09 Oct 2022
Topic Review
Infra-red Search and Track
An infrared search and track (IRST) system (sometimes known as infrared sighting and tracking) is a method for detecting and tracking objects which give off infrared radiation (see Infrared signature) such as jet aircraft and helicopters. IRST is a generalized case of forward looking infrared (FLIR), i.e. from forward-looking to all-round situation awareness. Such systems are passive (thermographic camera), meaning they do not give out any radiation of their own, unlike radar. This gives them the advantage that they are difficult to detect. However, because the atmosphere attenuates infrared to some extent (although not as much as visible light) and because adverse weather can attenuate it also (again, not as badly as visible systems), the range compared to a radar is limited. Within range, angular resolution is better than radar due to the shorter wavelength.
  • 3.3K
  • 14 Oct 2022
Topic Review
Inflorescence Meristem in Cereal Crops
Flowering plants develop new organs throughout their life cycle. The vegetative shoot apical meristem (SAM) generates leaf whorls, branches and stems, whereas the reproductive SAM, called the inflorescence meristem (IM), forms florets arranged on a stem or an axis. In cereal crops, the inflorescence producing grains from fertilized florets makes the major yield contribution, which is determined by the numbers and structures of branches, spikelets and florets within the inflorescence. The developmental progression largely depends on the activity of IM. The proper regulations of IM size, specification and termination are outcomes of complex interactions between promoting and restricting factors/signals. 
  • 3.3K
  • 14 May 2021
Topic Review
CBT-E for Eating Disorders
Enhanced cognitive behaviour therapy, also known as CBT-E, is a “transdiagnostic” psychological treatment for all forms of eating disorder including anorexia nervosa, bulimia nervosa, binge eating disorder and other similar states. CBT-E is the only treatment recommended by the National Institute for Health and Care Excellence (NICE) for all the forms of eating disorders both for adults and adolescents
  • 3.3K
  • 27 Oct 2020
Topic Review
Host Defenses to Viruses
The constant battle between viruses and their hosts leads to their reciprocal evolution. Viruses regularly develop survival strategies against host immunity, while their ability to replicate and disseminate is countered by the antiviral defense mechanisms that host mount. Although most viral infections are generally controlled by the host’s immune system, some viruses do cause overt damage to the host. The outcome can vary widely depending on the properties of the infecting virus and the circumstances of infection but also depends on several factors controlled by the host, including host genetic susceptibility to viral infections.
  • 3.3K
  • 16 Feb 2022
Topic Review
Nafion-Based Membrane
Nafion, a perfluorosulfonic acid proton exchange membrane (PEM), has been widely used in direct methanol fuel cells (DMFCs) to serve as a proton carrier, methanol barrier, and separator for the anode and cathode. A significant drawback of Nafion in DMFC applications is the high anode-to-cathode methanol fuel permeability that results in over 40% fuel waste.
  • 3.3K
  • 20 May 2022
Topic Review
Classic Car
A classic car is an older automobile; the exact definition varies around the world. The common theme is of an older car with enough historical interest to be collectable and worth preserving or restoring rather than scrapping. Cars 20 years and older typically fall into the classic class. Organizations such as the Classic Car Club of America (CCCA) and the Antique Automobile Club of America (AACA) maintain a list of eligible unmodified cars that are called "classic". These are described as "fine" or "distinctive" automobile, either American or foreign built, produced between 1915 to 1998. Post–World War II "classic cars" are not precisely defined and the term is often applied to any older vehicle.
  • 3.3K
  • 02 Nov 2022
Topic Review
Trace Minerals in Animal Nutrition
Trace mineral refers to the nutritional elements added to production and companion animal diets in micro quantities. They are involved in structural, physiological, catalytic, and regulatory functions in animals. The importance of dietary supplementation of animal feeds with trace minerals is irrefutable, with various forms of both organic and inorganic products commercially available.
  • 3.3K
  • 22 Sep 2022
Topic Review
Science, Technology, Engineering, and Mathematics
Science, technology, engineering, and mathematics (STEM) is a broad term used to group together these academic disciplines. This term is typically used to address an education policy or curriculum choices in schools. It has implications for workforce development, national security concerns (as a shortage of STEM-educated citizens can reduce effectiveness in this area) and immigration policy. There is no universal agreement on which disciplines are included in STEM; in particular whether or not the science in STEM includes social sciences, such as psychology, sociology, economics, and political science. In the United States, these are typically included by organizations such as the National Science Foundation (NSF). The National Science Foundation deals with all matters concerning science and new discoveries in science as it affects development, research, and innovations, the Department of Labor's O*Net online database for job seekers, and the Department of Homeland Security. In the United Kingdom, the social sciences are categorized separately and are instead grouped together with humanities and arts to form another counterpart acronym HASS (Humanities, Arts, and Social Sciences), rebranded in 2020 as SHAPE (Social Sciences, Humanities and the Arts for People and the Economy).
  • 3.3K
  • 14 Nov 2022
Topic Review
Oil Spill Modeling
Several oil spill simulation models exist in the literature, which are used worldwide to simulate the evolution of an oil slick created from marine traffic, petroleum production, or other sources. These models may range from simple parametric calculations to advanced, new-generation, operational, three-dimensional numerical models, coupled to meteorological, hydrodynamic, and wave models, forecasting in high-resolution and with high precision the transport and fate of oil. This study presents a review of the transport and oil weathering processes and their parameterization and critically examines eighteen state-of-the-art oil spill models in terms of their capacity (a) to simulate these processes, (b) to consider oil released from surface or submerged sources, (c) to assimilate real-time field data for model initiation and forcing, and (d) to assess uncertainty in the produced predictions. Based on our review, the most common oil weathering processes involved are spreading, advection, diffusion, evaporation, emulsification, and dispersion. The majority of existing oil spill models do not consider significant physical processes, such as oil dissolution, photo-oxidation, biodegradation, and vertical mixing. Moreover, timely response to oil spills is lacking in the new generation of oil spill models. Further improvements in oil spill modeling should emphasize more comprehensive parametrization of oil dissolution, biodegradation, entrainment, and prediction of oil particles size distribution following wave action and well blow outs.
  • 3.3K
  • 02 Mar 2021
Topic Review
Orange Peel Boards
The Orange Peel Board is a panel made by mixture of different proportions dried peels and wet peels. The commonly used processing method is thermo-pressing.  
  • 3.3K
  • 19 Jul 2021
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