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Apostles
In Christian theology and ecclesiology, apostles, particularly the Twelve Apostles (also known as the Twelve Disciples or simply the Twelve), were the primary disciples of Jesus according to the New Testament. In addition to Christian theology, Islamic theology also acknowledges the apostles in the Quran. During the life and ministry of Jesus in the 1st century AD, the apostles were his closest followers and became the primary teachers of the gospel message of Jesus. While Christian tradition often refers to the apostles as being twelve in number, different gospel writers give different names for the same individual, and apostles mentioned in one gospel are not mentioned in others. There is also an Eastern Christian tradition derived from the Gospel of Luke of there having been as many as 70 apostles during the time of Jesus' ministry. Paul is often referred to as an apostle, because he was directly taught and commissioned by a vision of Christ (Acts 9:4–9) during his journey to Damascus. The commissioning of the Twelve Apostles during the ministry of Jesus is recorded in the Synoptic Gospels. After his resurrection, Jesus sent eleven of them (minus Judas Iscariot, who by then had died) by the Great Commission to spread his teachings to all nations. This event has been called the Dispersion of the Apostles. In modern usage, missionaries under Pentecostal movements often refer to themselves as apostles, a practice which stems from the Latin equivalent of apostle, i.e. missio, the source of the English word missionary. For example, Saint Patrick (AD 373–463) was the "Apostle of Ireland", Saint Boniface (680–755) was the "Apostle to the Germans", Saint José de Anchieta (1534–1597) was the "Apostle of Brazil" and Saint Peter of Betancur (1626–1667) was the "Apostle of Guatemala". The period of early Christianity during the lifetimes of the apostles is called the Apostolic Age. During the 1st century AD, the apostles established churches throughout the territories of the Roman Empire and, according to tradition, through the Middle East, Africa, and India . Of the tombs of the apostles, all but two are claimed by premises of the Catholic Church, half of them located in the Diocese of Rome.
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  • 20 Oct 2022
Topic Review
Hooker with a Heart of Gold
The hooker with a heart of gold (also the whore with a heart of gold or the tart with a heart) is a stock character involving a courtesan or prostitute with a hidden integrity and kindness. The character, traditionally female, is usually an example of irony: an allegedly immoral woman who demonstrates virtues absent in woman morally correct for the role.
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  • 20 Oct 2022
Topic Review
Canon (Priest)
A canon (from the Latin canonicus, itself derived from the Greek κανονικός, kanonikós, "relating to a rule", "regular") is a member of certain bodies subject to an ecclesiastical rule. Originally, a canon was a cleric living with others in a clergy house or, later, in one of the houses within the precinct of or close to a cathedral or other major church and conducting his life according to the customary discipline or rules of the church. This way of life grew common (and is first documented) in the eighth century. In the eleventh century, some churches required clergy thus living together to adopt the rule first proposed by Saint Augustine that they renounce private wealth. Those who embraced this change were known as Augustinians or Canons Regular, whilst those who did not were known as secular canons.
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  • 20 Oct 2022
Topic Review
N-back
The n-back task is a continuous performance task that is commonly used as an assessment in psychology and cognitive neuroscience to measure a part of working memory and working memory capacity. The n-back was introduced by Wayne Kirchner in 1958. Some researchers have argued that n-back training may increase IQ, but evidence is mixed.
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  • 20 Oct 2022
Topic Review
Diffraction Formalism
Diffraction processes affecting waves are amenable to quantitative description and analysis. Such treatments are applied to a wave passing through one or more slits whose width is specified as a proportion of the wavelength. Numerical approximations may be used, including the Fresnel and Fraunhofer approximations.
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  • 20 Oct 2022
Topic Review
Convergent Evolution
Convergent evolution is the independent evolution of similar features in species of different periods or epochs in time. Convergent evolution creates analogous structures that have similar form or function but were not present in the last common ancestor of those groups. The cladistic term for the same phenomenon is homoplasy. The recurrent evolution of flight is a classic example, as flying insects, birds, pterosaurs, and bats have independently evolved the useful capacity of flight. Functionally similar features that have arisen through convergent evolution are analogous, whereas homologous structures or traits have a common origin but can have dissimilar functions. Bird, bat, and pterosaur wings are analogous structures, but their forelimbs are homologous, sharing an ancestral state despite serving different functions. The opposite of convergence is divergent evolution, where related species evolve different traits. Convergent evolution is similar to parallel evolution, which occurs when two independent species evolve in the same direction and thus independently acquire similar characteristics; for instance, gliding frogs have evolved in parallel from multiple types of tree frog. Many instances of convergent evolution are known in plants, including the repeated development of C4 photosynthesis, seed dispersal by fleshy fruits adapted to be eaten by animals, and carnivory.
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  • 24 Oct 2022
Topic Review
Gait Deviations
Gait deviations are nominally referred to as any variation of standard human gait, typically manifesting as a coping mechanism in response to an anatomical impairment. Lower-limb amputees are unable to maintain the characteristic walking patterns of an able-bodied individual due to the removal of some portion of the impaired leg. Without the anatomical structure and neuromechanical control of the removed leg segment, amputees must use alternative compensatory strategies to walk efficiently. Prosthetic limbs provide support to the user and more advanced models attempt to mimic the function of the missing anatomy, including biomechanically controlled ankle and knee joints. However, amputees still display quantifiable differences in many measures of ambulation when compared to able-bodied individuals. Several common observations are whole-body movements, slower and wider steps, shorter strides, and increased sway.
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  • 20 Oct 2022
Topic Review
Spiral Ground Heat Exchanger
Spiral ground heat exchangers in heat pump applications play an important role in heating/cooling of buildings. Energy consumption of buildings is a significant factor in global environmental issues. One of the ways of supplying heating and cooling is using potential energy stored in the ground which is clean and sustainable. These types of systems are called ground source heat pump (GSHP) systems. The initial cost and efficiency of GSHP systems can be influenced by optimal design of ground heat exchangers (GHEs). Many parameters influencing thermal performance of spiral GHEs such as external major diameter of borehole, spacing, distance between each turns of spiral GHEs, etc. When we have a large application area, one spiral GHE is not enough for supplying heating or cooling demands of the building. In this case more than one GHE is needed to be embedded into the ground. When we have more than one GHE in ground, optimization of distance between them becomes an essential problem. Another important parameter which is highly affecting thermal performance of a GSHP system are thermal properties of ground. Before integrating a GSHP system to the building thermal properties of ground or soil should be determined.
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  • 20 Oct 2022
Topic Review
Species Affected by Poaching
Species affected by poaching refers both to the effects of illegal hunting and fishing or capturing of wild animals on certain species, and, in a recent usage, the illegal harvesting of wild plant species. The article provides an overview of species currently endangered or impaired by poaching in the Americas, sub-Saharan Africa, and South-East Asia.
  • 1.9K
  • 20 Oct 2022
Topic Review
Bose Wave System
Bose Corporation's Wave Music Systems are table top audio systems which were first released in 1984. Various Wave systems comprise CD players, DAB tuners and inputs for computer sources, and in addition most models contain an AM/FM tuner. Wave systems use a folded waveguide (a series of passages from the speaker driver to the speaker grill), in an attempt to replicate sound from larger systems in a compact design. Bose claims the waveguide "produces full, clear stereo sound from a small enclosure by guiding air through two 26” folded wave guides". In 1987, Amar G. Bose and William R. Short won the Intellectual Property Owners Education Foundation's Inventor of the Year award for the waveguide loudspeaker system.
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  • 20 Oct 2022
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