Emotion, in everyday speech, is any relatively brief conscious experience characterized by intense mental activity and a high degree of pleasure or displeasure. Scientific discourse has drifted to other meanings and there is no consensus on a definition. Emotion is often intertwined with mood, temperament, personality, disposition, and motivation. In some theories, cognition is an important aspect of emotion. Those acting primarily on emotion may seem as if they are not thinking, but mental processes are still essential, particularly in the interpretation of events. For example, the realization of danger and subsequent arousal of the nervous system (e.g. rapid heartbeat and breathing, sweating, muscle tension) is integral to the experience of fear. Other theories, however, claim that emotion is separate from and can precede cognition.

Emotions are complex. According to some theories, they are a state of feeling that results in physical and psychological changes that influence our behavior. The physiology of emotion is closely linked to arousal of the nervous system with various states and strengths of arousal relating, apparently, to particular emotions. Emotion is also linked to behavioral tendency. Extroverted people are more likely to be social and express their emotions, while introverted people are more likely to be more socially withdrawn and conceal their emotions. Emotion is often the driving force behind motivation, positive or negative. Definition has been described as is a "positive or negative experience that is associated with a particular pattern of physiological activity." According to other theories, emotions are not causal forces but simply syndromes of components, which might include motivation, feeling, behavior, and physiological changes, but no one of these components is the emotion. Nor is the emotion an entity that causes these components

Emotion is a peer-reviewed scientific journal, which, as its title states, publishes articles relating to the study of emotion. It is one of several psychology journals published by the American Psychological Association. It was established by founding co-editors-in-chief Richard Davidson and Klaus Scherer in 2001. The current editor-in-chief is David DeSteno (Northeastern University). Initially published quarterly, the publication frequency has been bimonthly since 2008.

Abstracting and indexing

For indexing purposes, Emotion is also referred to as Emotion (Washington D.C.). The journal is abstracted and indexed in Abstracts of Mycology, Biological Abstracts, BIOSIS Previews, CINAHL Plus with Full Text, Current Contents, Dietrich's Index Philosophicus, EMBASE, Index Medicus, I B Z - Internationale Bibliographie der Geistes- und Sozialwissenschaftlichen Zeitschriftenliteratur, Internationale Bibliographie der Rezensionen Geistes- und Sozialwissenschaftlicher Literatur, MEDLINE, PsycINFO, PubMed, Reactions Weekly, Scopus, Social Sciences Citation Index, and SwetsWise All Titles.

Bandai Visual Co., Ltd. (バンダイビジュアル株式会社, Bandai Bijuaru Kabushiki Gaisha), is a Japanese anime, film production and distribution enterprise, established by Bandai Company, Limited and a subsidiary of Bandai Namco Holdings, Inc., which is based in Minato, Tokyo, Japan. Since the reorganisation of Bandai Namco Holdings in 2006, Bandai Visual now heads the group's Visual and Music Content Strategic Business Unit. Its subsidiaries include the Emotion Music Company, Limited, (whose logos also include the Moai from Easter Island), and Lantis Company, Limited music publishing labels.

Until 2012, it was involved in the production and distribution of several anime titles, including those it has directly produced itself and anime series produced by the anime studio Sunrise, a subsidiary of Bandai.

History

Bandai Visual is currently a fully owned subsidiary of Bandai Namco Holdings. Bandai Namco announced on November 8, 2007 that it would buy the voting shares it did not own between that date and December 10, 2007 and turn the company into a wholly owned subsidiary. On December 18, 2007, Bandai Namco announced that it owned 93.63% of Bandai Visual's shares since the end of November. The remaining shares were delisted from the Tokyo Stock Exchange on February 15, 2008 after Bandai Namco acquired the remaining 10% of the shares.

Quartz is the second-most-abundant mineral in Earth's continental crust, after feldspar. Its crystal structure is a continuous framework of SiO₄silicon–oxygen tetrahedra, with each oxygen being shared between two tetrahedra, giving an overall chemical formula of SiO₂.

There are many different varieties of quartz, several of which are semi-precious gemstones. Since antiquity, varieties of quartz have been the most commonly used minerals in the making of jewelry and hardstone carvings, especially in Europe and the Middle East.

Etymology

The word "quartz" is derived from the German word "Quarz" and its Middle High German ancestor "twarc", which probably originated in Slavic, cf. Czech tvrdý ("hard"), Polish twardy ("hard"), Serbian and Croatian tvrd ("hard").

The Ancient Greeks referred to quartz as κρύσταλλος (krustallos) derived from the Ancient Greek κρύος (kruos) meaning "icy cold", because some philosophers (including Theophrastus) apparently believed the mineral to be a form of supercooled ice. Today, the term rock crystal is sometimes used as an alternative name for the purest form of quartz.

A crystal oscillator is an electronic oscillator circuit that uses the mechanical resonance of a vibrating crystal of piezoelectric material to create an electrical signal with a precise frequency. This frequency is commonly used to keep track of time, as in quartz wristwatches, to provide a stable clock signal for digital integrated circuits, and to stabilize frequencies for radio transmitters and receivers. The most common type of piezoelectric resonator used is the quartz crystal, so oscillator circuits incorporating them became known as crystal oscillators, but other piezoelectric materials including polycrystalline ceramics are used in similar circuits.

Quartz crystals are manufactured for frequencies from a few tens of kilohertz to hundreds of megahertz. More than two billion crystals are manufactured annually. Most are used for consumer devices such as wristwatches, clocks, radios, computers, and cellphones. Quartz crystals are also found inside test and measurement equipment, such as counters, signal generators, and oscilloscopes.

Quartz is a job scheduling library that can be integrated into a wide variety of Java applications.

Quartz is generally used for enterprise class applications to support process workflow, system management (maintenance) actions and to provide timely services within the applications. Quartz also supports clustering.

Quartz is an open-source product from the Terracotta company.

There is also a port to .NET, called Quartz.NET.

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