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Topic Review
Normal Gravity Formula
Normal gravity formulas are mathematical expressions, with which the free-fall acceleration at a point in vicinity to the surface of the earth can be estimated. Along with the mass (known or predicted) of a body, the weight is calculated.
  • 10.9K
  • 10 Nov 2022
Topic Review
Prince of Wales's Feathers
Template:Infobox Coat of arms The Prince of Wales's feathers is the heraldic badge of the Prince of Wales. It consists of three white ostrich feathers emerging from a gold coronet. A ribbon below the coronet bears the motto Ich dien (German: [ɪç ˈdiːn], "I serve"). As well as being used in royal heraldry, the badge is sometimes used to symbolise Wales, particularly in Welsh rugby union and Welsh regiments of the British Army.
  • 10.8K
  • 27 Nov 2022
Topic Review
Synthesis and Properties of Pyrazoles
Pyrazole derivatives are a special class of N-heterocyclic compounds (NHCps) bearing a heteroaromatic five-membered ring with two adjacent nitrogen atoms in the annular structure, one pyrrole-type (proton donor) and one pyridine-type (proton acceptor). Pyrazoles can act as weak bases or acids, with possible strength highly dependent on the nature of their substituent groups. The other three positions in the ring permit structural variants starting from the appropriate precursors or using post-functionalization reactions once the pyrazole ring is formed; these variations give the pyrazoles diverse and valuable synthetical, biological, and photophysical properties; indeed, more complex structures with various relevant examples can be formed from them.
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  • 09 Sep 2022
Topic Review
List of ASTM International Standards
This is a list of ASTM International standards. Standard designations usually consist of a letter prefix and a sequentially assigned number. This may optionally be followed by a dash and the last two digits of the year in which the standard was adopted. Prefix letters correspond to the following subjects: This list may include either current or withdrawn standards. A withdrawn standard has been discontinued by its sponsoring committee. A standard may be withdrawn with or without replacement.
  • 10.8K
  • 01 Nov 2022
Topic Review
Information Problem-Solving Instruction
Information problem solving (IPS) is a complex cognitive process considered as an important 21st century skill in combination with critical thinking [15].
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  • 27 Oct 2020
Topic Review
Two-Ray Ground-Reflection Model
The Two-Rays Ground Reflected Model is a radio propagation model which predicts the path losses between a transmitting antenna and a receiving antenna when they are in LOS (line of sight). Generally, the two antenna each have different height. The received signal having two components, the LOS component and the multipath component formed predominantly by a single ground reflected wave.
  • 10.8K
  • 08 Nov 2022
Topic Review
Bicameralism (Psychology)
Bicameralism[Note 1] (the condition of being divided into "two-chambers") is a controversial hypothesis in psychology and neuroscience which argues that the human mind once operated in a state in which cognitive functions were divided between one part of the brain which appears to be "speaking", and a second part which listens and obeys—a bicameral mind, and that the evolutionary breakdown of this division gave rise to consciousness in humans. The term was coined by Julian Jaynes, who presented the idea in his 1976 book The Origin of Consciousness in the Breakdown of the Bicameral Mind, wherein he made the case that a bicameral mentality was the normal and ubiquitous state of the human mind as recently as 3,000 years ago, near the end of the Mediterranean bronze age.
  • 10.8K
  • 10 Oct 2022
Topic Review
Anthropomorphism on Dog Emotions and Behavior
Anthropomorphism is defined as the tendency to attribute human forms, behaviors, and emotions to non-human animals or objects. Anthropomorphism is particularly relevant for companion animals. Some anthropomorphic practices can be beneficial to them, whilst others can be very detrimental. Some anthropomorphic behaviors compromise the welfare and physiology of animals by interfering with thermoregulation, while others can produce dehydration due to the loss of body water, a condition that brings undesirable consequences such as high compensatory blood pressure and heat shock, even death, depending on the intensity and frequency of an animal’s exposure to these stressors.
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  • 05 Jan 2022
Topic Review
Tourism Commercialization and Perceived Authenticity
The concept of authenticity is closely related to heritage tourism, especially cultural heritage tourism. Seeking authenticity is one of the main trends in heritage tourism because people want to identify and understand themselves or reminisce about the past by looking back to the old ways of life and cultural traditions. Compared with actual authenticity, perceived authenticity has more value. It is a bridge between heritage authenticity and tourist experience. Heritage tourism is essentially a form of tourism that attracts tourists based on the commercialization of historical and cultural assets. A heritage site not only draws tourists to experience the authentic past, but it also provides them with a place for entertainment, relaxation and consumption. That is, heritage tourism development inevitably encounters commercialization. From a demand perspective, heritage tourism is an emotional experience, the perception of tourists at its core.
  • 10.8K
  • 22 Jun 2021
Topic Review
Information and Communication Technology (ICT) in Construction
Information and communication technology (ICT) is one of the important factors that support construction project performance. 
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  • 28 Mar 2022
Biography
Friedrich Nietzsche
Friedrich Wilhelm Nietzsche (/ˈniːtʃə, ˈniːtʃi/;[1] German: [ˈfʁiːdʁɪç ˈvɪlhɛlm ˈniːtʃə] or [ˈniːtsʃə];[2][3] 15 October 1844 – 25 August 1900) was a German philosopher, cultural critic, composer, poet, writer, and philologist whose work has exerted a profound influence on modern intellectual history. He began his career as a classical philologist before turning to phil
  • 10.8K
  • 06 Dec 2022
Topic Review
Straight-Three Engine
A straight-three engine, also known as an inline-triple, or inline-three (abbreviated I3 or L3), is a reciprocating piston internal combustion engine with three cylinders arranged in a straight line or plane, side by side.
  • 10.8K
  • 31 Oct 2022
Topic Review
Karōshi
Karōshi (過労死), which can be translated literally as "overwork death" in Japanese, is occupational sudden mortality. The major medical causes of karōshi deaths are heart attack and stroke due to stress and a starvation diet. This phenomenon is also widespread in other parts of Asia as well.
  • 10.8K
  • 21 Nov 2022
Topic Review
Relics Associated with Buddha
According to Mahaparinibbana Sutta, after his death, the Buddha was cremated and the ashes divided among his followers.
  • 10.8K
  • 04 Nov 2022
Topic Review
Almond Kernel
This entry is about Non-Lipid Components and Minor Fat-Soluble Bioactive Compounds of Almond Kernel.
  • 10.7K
  • 08 Dec 2020
Topic Review
First Bulgarian Empire
The First Bulgarian Empire (Old Bulgarian: ц︢рьство бл︢гарское, ts'rstvo bl'garskoe) was a medieval Bulgarian state that existed in Southeastern Europe between the 7th and 11th centuries AD. It was founded in 681 when Bulgar tribes led by Asparuh moved to the northeastern Balkans. There they secured Byzantine recognition of their right to settle south of the Danube by defeating – possibly with the help of local South Slavic tribes – the Byzantine army led by Constantine IV. At the height of its power, Bulgaria spread from the Danube Bend to the Black Sea and from the Dnieper River to the Adriatic Sea. As the state solidified its position in the Balkans, it entered into a centuries-long interaction, sometimes friendly and sometimes hostile, with the Byzantine Empire. Bulgaria emerged as Byzantium's chief antagonist to its north, resulting in several wars. The two powers also enjoyed periods of peace and alliance, most notably during the Second Arab siege of Constantinople, where the Bulgarian army broke the siege and destroyed the Arab army, thus preventing an Arab invasion of Southeastern Europe. Byzantium had a strong cultural influence on Bulgaria, which also led to the eventual adoption of Christianity in 864. After the disintegration of the Avar Khaganate, the country expanded its territory northwest to the Pannonian Plain. Later the Bulgarians confronted the advance of the Pechenegs and Cumans, and achieved a decisive victory over the Magyars, forcing them to establish themselves permanently in Pannonia. During the late 9th and early 10th centuries, Simeon I achieved a string of victories over the Byzantines. Thereafter, he was recognized with the title of Emperor, and proceeded to expand the state to its greatest extent. After the annihilation of the Byzantine army in the battle of Anchialus in 917, the Bulgarians laid siege to Constantinople in 923 and 924. The Byzantines, however, eventually recovered, and in 1014, under Basil II, inflicted a crushing defeat on the Bulgarians at the Battle of Kleidion. By 1018, the last Bulgarian strongholds had surrendered to the Byzantine Empire, and the First Bulgarian Empire had ceased to exist. It was succeeded by the Second Bulgarian Empire in 1185. After the adoption of Christianity, Bulgaria became the cultural center of Slavic Europe. Its leading cultural position was further consolidated with the invention of the Glagolitic and Early Cyrillic alphabets shortly after in the capital Preslav, and literature produced in Old Bulgarian soon began spreading north. Old Bulgarian became the lingua franca of much of Eastern Europe and it came to be known as Old Church Slavonic. In 927, the fully independent Bulgarian Patriarchate was officially recognized. The ruling Bulgars and other non-Slavic tribes in the empire gradually mixed and adopted the prevailing Slavic language, thus gradually forming the Bulgarian nation from the 7th century to the 9th century. Since the late 9th century, the names Bulgarians and Bulgarian gained prevalence and became permanent designations for the local population, both in literature and in common parlance. The development of Old Church Slavonic literacy had the effect of preventing the assimilation of the South Slavs into neighbouring cultures, while stimulating the formation of a distinct Bulgarian identity.
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  • 25 Oct 2022
Topic Review
African Sheep Breeds
The African continent is home to more than 400 million heads of sheep, the majority of which are classified as indigenous and raised primarily for subsistence. They live and thrive well in a wide range of climatic and production conditions, ranging from unfavorable to favorable environments. 
  • 10.7K
  • 17 Sep 2021
Topic Review
Social Construct Theory of ADHD
The social construction theory of ADHD argues that attention deficit hyperactivity disorder is not necessarily an actual pathology, but that an ADHD diagnosis is a socially constructed explanation to describe behaviors that simply do not meet prescribed social norms. Some proponents of the social construct theory of ADHD seem to regard the disorder as genuine, though over-diagnosed in some cultures. These proponents cite as evidence that the DSM IV, favored in the United States for defining and diagnosing mental illness, arrives at levels of ADHD three to four times higher than criteria in the ICD 10, the diagnostic guide favored by the World Health Organization. A popular proponent of this theory, Thomas Szasz, has argued that ADHD was "invented and not discovered."
  • 10.7K
  • 22 Nov 2022
Biography
Kevin Systrom
Kevin York Systrom (born December 30, 1983)[1] is an American entrepreneur and programmer, best known as the co‑founder of Instagram along with Mike Krieger. Systrom was born in 1983 in Holliston, Massachusetts. He is the son of Diane (Pels), a marketing executive at Zipcar, who also worked at Monster and Swapit during the first dotcom bubble,[2] and Douglas Systrom, Vice President in Human
  • 10.7K
  • 30 Nov 2022
Topic Review
HMG-CoA-Reductase
3-hydroxy-3-methylglutaryl coenzyme A reductase (HMG-CoAR) is an enzyme involved in the biosynthesis of cholesterol and an important target in the treatment of hypercholesterolemia.
  • 10.7K
  • 29 Oct 2020
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