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Topic Review
Waste Tires
Waste or Scrap tires, also known as End-of-Life Tires (ELT), are used rubber tires that because of their abrasion state ("tire wear") are not safe for public traffic. Waste tires can go into tire recycling or will be dumped, either in legal landfills or illegally; another portion may be pyrolysed to produce tire-derived fuel or heat energy.
  • 2.8K
  • 09 Oct 2022
Topic Review
Sagittarius
Sagittarius, often referred to as "the Archer," is a prominent constellation in the southern celestial hemisphere, renowned for its association with Greek mythology and the mythical centaur Chiron. Positioned along the Milky Way, Sagittarius hosts a wealth of celestial wonders, including the galactic center and numerous star clusters.
  • 2.8K
  • 15 Mar 2024
Topic Review
Peer-to-Peer Energy Trading
Peer-to-peer energy trading (P2P-ET) provides an online marketplace where direct energy exchange can occur between its participants, namely, prosumers and consumers. P2P-ET offers techno-economical benefits to its participants and brings savings to them.
  • 2.8K
  • 08 Dec 2022
Topic Review
List of AMD Phenom Microprocessors
The AMD Phenom family is a 64-bit microprocessor family from Advanced Micro Devices (AMD), based on the K10 microarchitecture. It includes the AMD Phenom II X6 hex-core series, Phenom X4 and Phenom II X4 quad-core series, Phenom X3 and Phenom II X3 tri-core series, and Phenom II X2 dual-core series. Other related processors based on the K10 microarchitecture include the Athlon X2 Kuma processors, Athlon II processors, and various Opteron, Sempron, and Turion series. The first Phenoms were released in November 2007. An improved second generation was released in December 2008, named Phenom II. Processors with an e following the model number (e.g., 910e) are low-power models, usually 45 W for Athlons, 65 W for Phenoms. Processors with a "u" following the model number (e.g., 270u) are ultra-low-power models, usually 20 W for single core chips or 25 W for dual core chips.
  • 2.8K
  • 12 Oct 2022
Topic Review
Congenital Malformations in Sea Turtles
Congenital malformations can lead to embryonic mortality in many species, and sea turtles are no exception. Genetic and/or environmental alterations occur during early development in the embryo, and may produce aberrant phenotypes, many of which are incompatible with life. Causes of malformations are multifactorial; genetic factors may include mutations, chromosomal aberrations, and inbreeding effects, whereas non-genetic factors may include nutrition, hyperthermia, low moisture, radiation, and contamination. It is possible to monitor and control some of these factors (such as temperature and humidity) in nesting beaches, and toxic compounds in feeding areas, which can be transferred to the embryo through their lipophilic properties.
  • 2.8K
  • 22 Feb 2021
Topic Review
Streptavidin
Streptavidin /ˌstrɛpˈtævɪdɪn/ is a 52.8 kDa protein purified from the bacterium Streptomyces avidinii. Streptavidin homo-tetramers have an extraordinarily high affinity for biotin (also known as vitamin B7 or vitamin H). With a dissociation constant (Kd) on the order of ≈10−14 mol/L, the binding of biotin to streptavidin is one of the strongest non-covalent interactions known in nature. Streptavidin is used extensively in molecular biology and bionanotechnology due to the streptavidin-biotin complex's resistance to organic solvents, denaturants (e.g. guanidinium chloride), detergents (e.g. SDS, Triton), proteolytic enzymes, and extremes of temperature and pH.
  • 2.8K
  • 25 Oct 2022
Topic Review
Properties of Polynomial Roots
In mathematics, a univariate polynomial is an expression of the form where the ai belong to some field, which, in this article, is always the field [math]\displaystyle{ \mathbb C }[/math] of the complex numbers. The natural number n is known as the degree of the polynomial. In the following, p will be used to represent the polynomial, so we have A root of the polynomial p is a solution of the equation p = 0: that is, a complex number a such that p(a) = 0. The fundamental theorem of algebra combined with the factor theorem states that the polynomial p has n roots in the complex plane, if they are counted with their multiplicities. This article concerns various properties of the roots of p, including their location in the complex plane.
  • 2.8K
  • 21 Nov 2022
Biography
Chandrasekhara Venkata Raman
Chandrasekhara Venkata Raman, born on November 7, 1888, and passed away on November 21, 1970, was a distinguished Indian physicist renowned for his contributions to the study of light scattering. Alongside his student K. S. Krishnan, he developed a spectrograph and made a groundbreaking discovery – the modification of light scattering when it passes through a transparent material. This phenome
  • 2.8K
  • 17 Feb 2024
Topic Review
Protoplasts
Plants are sessile organisms that have a remarkable developmental plasticity, which ensures their optimal adaptation to environmental stresses. Plant cell totipotency is an extreme example of such plasticity, whereby somatic cells have the potential to form plants via direct shoot organogenesis or somatic embryogenesis in response to various exogenous and/or endogenous signals. Protoplasts provide one of the most suitable systems for investigating molecular mechanisms of the plant cell totipotency, because they are effectively single cell populations. The term protoplast originates from the ancient Greek word prōtóplastos, which means “first-formed”, and refers to a cell without a cell wall. Protoplasts represent a powerful tool to study the mechanisms that induce cell proliferation from individual, differentiated somatic cells, enabling successful reprogramming of plant cells when cultured in vitro.
  • 2.8K
  • 26 Oct 2020
Topic Review
BCI Emotion Recognition
This entry gives an overview of available datasets, emotion elicitation methods, feature extraction and selection, classification algorithms, and performance evaluation for emotion recognition using EEG-based BCI systems.
  • 2.8K
  • 10 Oct 2020
Topic Review
Titanium Wear of Dental Implants
Titanium is considered high-ly biocompatible with low corrosion and toxicity, but recent studies indicate that this understand-ing may be misleading as the properties of the material change drastically when titanium nano-particles (NPs) are shed from implant surfaces. These NPs are immunogenic and are associated with a macrophage-mediated inflammatory response by the host.
  • 2.8K
  • 02 Feb 2021
Topic Review
The Effects of Incubators on the Preterm Infant
Neonatal Intensive Care Units (NICUs) for very preterm infant do not provide the same living and development conditions as the intrauterine environment. Fetal sensory experience prepares the organism to interact with the sensory environment after birth. Early mature vestibular and tactile receptors are understimulated during an incubator stay, with isolation and reduced wear time outside of skin-to-skin. The incubator stay combines sensory deprivation, over-stimulation, and/or harmful, uncomfortable, or inappropriate stimulation with direct consequences on the brain maturation of the preterm newborn. 
  • 2.8K
  • 05 Jul 2023
Topic Review
Energy Return on Investment
Energy Return on Energy Invested (EROEI) (also Energy Return on Investment (EROI)) is a dimensionless ratio that compares the output over the life of an energy generating system—such as a power plant—to the energy inputs to the system. EROEI thus has the potential to filter out unsuitable projects, and to rank surviving projects according to their energy return. EROEI is therefore an important adjunct to conventional monetary project assessments.
  • 2.8K
  • 14 Dec 2020
Topic Review
Robotic Psychology
Although the contribution that social robots have made to healthcare is recognized, much less attention has been given to the role that social robots can play in a specific healthcare application domain, namely psychology-based interventions. Robotic psychology, or robopsychology, is a research field not yet fully exploited in regards to the study of compatibility between people and robotic creatures on multiple levels (i.e., sensory–motor, emotional, cognitive, and social). The proper use of social robots in the psychological field would exploit their potential even more, since relationality is a fundamental aspect for any intervention aimed at affecting people’s psychological dimensions.
  • 2.8K
  • 05 Nov 2021
Topic Review
Rudolf Carnap
Rudolf Carnap (/ˈkɑːrnæp/; German: [ˈkaʁnaːp]; 18 May 1891 – 14 September 1970) was a German-language philosopher who was active in Europe before 1935 and in the United States thereafter. He was a major member of the Vienna Circle and an advocate of logical positivism. He is considered "one of the giants among twentieth-century philosophers."
  • 2.8K
  • 24 Nov 2022
Topic Review
SiC Trench MOSFETs’ Reliability under Short-Circuit Conditions
MOSFETs exhibit different failure modes at different DC bus voltages.  For double trench SiC MOSFETs, the failure modes are gate fault at lower DC bus voltage and thermal runaway at higher DC bus voltage, while the failure modes for asymmetric trench SiC MOSFETs are soft failure and thermal runaway, respectively.  The short-circuit withstand time (SCWT) of the asymmetric trench MOSFET is higher than that of the double trench MOSFET.  The thermal and mechanical stresses inside the device during short-circuit test are simulated to explore the failure mechanism and reveal the impact of device structure on device reliability.  Finally, a post-failure analysis was performed to verify the root cause of the equipment failure.  
  • 2.8K
  • 28 Mar 2022
Topic Review
1,3-Butadiene
1,3-Butadiene is the organic compound with the formula (CH2=CH)2. It is a colorless gas that is easily condensed to a liquid. It is important industrially as a monomer in the production of synthetic rubber. The molecule can be viewed as the union of two vinyl groups. It is the simplest conjugated diene. Although butadiene breaks down quickly in the atmosphere, it is nevertheless found in ambient air in urban and suburban areas as a consequence of its constant emission from motor vehicles. The name butadiene can also refer to the isomer, 1,2-butadiene, which is a cumulated diene with structure H2C=C=CH−CH3. This allene has no industrial significance.
  • 2.8K
  • 17 Oct 2022
Topic Review
Communicative Spaces for Societal and Organisational Challenges
The current turbulent societies produce new society and organisation level challenges continuously. Communicative Spaces are concrete or virtual spaces where people conduct dialogues about significant large scope issues affecting their lives and make plans to overcome the constraints together. More details of the definition are given in Introduction and the following sections of Practical applications, General requirements and Potential outcomes. 
  • 2.8K
  • 30 Nov 2021
Topic Review
Mycorrhizal Symbiosis of Ericaceous Plants
Ericaceae are a group of plants with biotechnological and commercial importance. These plants establish symbiotic associations with a wide group of mycorrhizal fungi. National and global studies have focused on two of them: arbuscular endomycorrhizae and ectomycorrhizae. The classification of mycorrhizae by type of infection described so far in Ericaceae includes ectomycorrhizae, ectendomycorrhizae, and endomycorrhizae. Ectendomycorrhizas can be of arbutoid, monotropoid, and cavendishioid types; endomycorrhizas are of ericoid and arbuscular types. Of these clades, ectomycorrhizas and ectendomycorrhizas (arbutoid, monotropoid, and cavendishioid) form a multilayer mantle of hyphae around the root; while ericoid, unlike the previous ones, develop their intra- and intercellular structures.
  • 2.8K
  • 30 Sep 2022
Topic Review
Samasource
Samasource employs low-income workers in developing countries to classify data, among other tech work. Samasource mission is to expand opportunity for low-income individuals through the digital economy. One of the first organizations to engage in impact sourcing, Samasource trains workers in basic computer skills and pays a local living wage for their labor. Additionally, Samasource provides health and wellness education, professional skills development, a scholarship program to assist with continuing education costs, and a program to provide micro loans and mentorship to aspiring entrepreneurs. Some of Samasource's clients include Walmart, Google, General Motors and Microsoft. Samasource has offices in San Francisco, California , New York, The Hague, Costa Rica, Montreal , Nairobi, Kenya, Kampala, Uganda and Gulu, Uganda. The organization currently owns and operates delivery centers in Nairobi and Gulu, Uganda, and partners with additional delivery centers in India . Samasource previously had paid workers in Haiti, Pakistan , Ghana, and South Africa .
  • 2.8K
  • 01 Nov 2022
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