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Umwelt
In the semiotic theories of Jakob von Uexküll and Thomas A. Sebeok, ''umwelt'' (plural: umwelten; from the German ''Umwelt'' meaning "environment" or "surroundings") is the "biological foundations that lie at the very epicenter of the study of both communication and signification in the human nd non-humananimal". The term is usually translated as "self-centered world". Uexküll theorised that organisms can have different ''umwelten'', even though they share the same environment. The term ''umwelt'', together with companion terms ''Umgebung'' (an Umwelt as seen by another observer) and ''Innenwelt'' (the mapping of the self to the world of objects), have special relevance for cognitive philosophers, roboticists and cyberneticians because they offer a potential solution to the conundrum of the infinite regress of the Cartesian Theater. Discussion Each functional component of an ''umwelt'' has a meaning that represents the organism's model of the world. These functional comp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Umwelt
In the semiotic theories of Jakob von Uexküll and Thomas A. Sebeok, ''umwelt'' (plural: umwelten; from the German ''Umwelt'' meaning "environment" or "surroundings") is the "biological foundations that lie at the very epicenter of the study of both communication and signification in the human nd non-humananimal". The term is usually translated as "self-centered world". Uexküll theorised that organisms can have different ''umwelten'', even though they share the same environment. The term ''umwelt'', together with companion terms ''Umgebung'' (an Umwelt as seen by another observer) and ''Innenwelt'' (the mapping of the self to the world of objects), have special relevance for cognitive philosophers, roboticists and cyberneticians because they offer a potential solution to the conundrum of the infinite regress of the Cartesian Theater. Discussion Each functional component of an ''umwelt'' has a meaning that represents the organism's model of the world. These functional comp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Semiosphere
The semiosphere is an idea in biosemiotic theory proposing that, contrary to ideas of nature determining sense and experience, the phenomenal world is a creative and logical structure of processes of semiosis where signs operate together to produce sense and experience. Overview Biosemiotic theorists regard the idea of the semiosphere as beginning with continental philosophers' recognition of an epistemological gap between the ontological and the ontic, where it is initially difficult to conceptualize the way that subjectivity is created in between them. The study of the semiosphere has often overlapped into research made by symbolic interactionists and field theorists. The subject's narrative boundary-understanding of its environment—the lifeworld as proposed by Edmund Husserl, or ''umwelt'' as proposed by Jakob Johann von Uexküll—is derived through abstract processes of making a phenomenal world of symptoms, signals, icons, indexes, symbols and names—as proposed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Semiosis
Semiosis (, ), or sign process, is any form of activity, conduct, or process that involves signs, including the production of meaning. A sign is anything that communicates a meaning, that is not the sign itself, to the interpreter of the sign. The meaning can be intentional such as a word uttered with a specific meaning, or unintentional, such as a symptom being a sign of a particular medical condition. Signs can communicate through any of the senses, visual, auditory, tactile, olfactory, or taste. The term was introduced by Charles Sanders Peirce (1839–1914) to describe a process that interprets signs as referring to their objects, as described in his theory of sign relations, or semiotics. Other theories of sign processes are sometimes carried out under the heading of semiology, following on the work of Ferdinand de Saussure (1857–1913). Overview Peirce was interested primarily in logic, while Saussure was interested primarily in linguistics, which examines the functio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Semiotic
Semiotics (also called semiotic studies) is the systematic study of sign processes ( semiosis) and meaning making. Semiosis is any activity, conduct, or process that involves signs, where a sign is defined as anything that communicates something, usually called a meaning, to the sign's interpreter. The meaning can be intentional such as a word uttered with a specific meaning, or unintentional, such as a symptom being a sign of a particular medical condition. Signs can also communicate feelings (which are usually not considered meanings) and may communicate internally (through thought itself) or through any of the senses: visual, auditory, tactile, olfactory, or gustatory (taste). Contemporary semiotics is a branch of science that studies meaning-making and various types of knowledge. The semiotic tradition explores the study of signs and symbols as a significant part of communications. Unlike linguistics, semiotics also studies non-linguistic sign systems. Semiotics includes t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Agamben
Giorgio Agamben ( , ; born 22 April 1942) is an Italian philosopher best known for his work investigating the concepts of the state of exception, form-of-life (borrowed from Ludwig Wittgenstein) and '' homo sacer''. The concept of biopolitics (carried forth from the work of Michel Foucault) informs many of his writings. Biography Agamben was educated at the University of Rome, where in 1965 he wrote an unpublished laurea thesis on the political thought of Simone Weil. Agamben participated in Martin Heidegger's Le Thor seminars (on Heraclitus and Hegel) in 1966 and 1968. In the 1970s, he worked primarily on linguistics, philology, poetics, and topics in medieval culture. During this period, Agamben began to elaborate his primary concerns, although their political bearings were not yet made explicit. In 1974–1975 he was a fellow at the Warburg Institute, University of London, due to the courtesy of Frances Yates, whom he met through Italo Calvino. During this fellowship, Agam ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jellyfish
Jellyfish and sea jellies are the informal common names given to the medusa-phase of certain gelatinous members of the subphylum Medusozoa, a major part of the phylum Cnidaria. Jellyfish are mainly free-swimming marine animals with umbrella-shaped bells and trailing tentacles, although a few are anchored to the seabed by stalks rather than being mobile. The bell can pulsate to provide propulsion for highly efficient animal locomotion, locomotion. The tentacles are armed with Cnidocyte, stinging cells and may be used to capture prey and defend against predators. Jellyfish have a complex Biological life cycle, life cycle; the medusa is normally the sexual phase, which produces planula larvae that disperse widely and enter a sedentary polyp (zoology), polyp phase before reaching sexual maturity. Jellyfish are found all over the world, from surface waters to the deep sea. Scyphozoans (the "true jellyfish") are exclusively marine habitats, marine, but some hydrozoans with a simila ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sea Worms
Sea worm may refer to one or several of the following phyla: See also * Marine worm Any worm that lives in a marine environment is considered a marine worm. Marine worms are found in several different phyla, including the Platyhelminthes, Nematoda, Annelida (segmented worms), Chaetognatha, Hemichordata, and Phoronida. For a ... {{Animal common name Marine animals ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Biosemiotic
Biosemiotics (from the Greek βίος ''bios'', "life" and σημειωτικός ''sēmeiōtikos'', "observant of signs") is a field of semiotics and biology that studies the prelinguistic meaning-making, biological interpretation processes, production of signs and codes and communication processes in the biological realm.Favareau, Donald (ed.) 2010. ''Essential Readings in Biosemiotics: Anthology and Commentary''. (Biosemiotics 3.) Berlin: Springer. Biosemiotics integrates the findings of biology and semiotics and proposes a paradigmatic shift in the scientific view of life, in which semiosis (sign process, including meaning and interpretation) is one of its immanent and intrinsic features. The term ''biosemiotic'' was first used by Friedrich S. Rothschild in 1962, but Thomas Sebeok and Thure von Uexküll have implemented the term and field. The field, which challenges normative views of biology, is generally divided between theoretical and applied biosemiotics. Insights f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Butyric Acid
Butyric acid (; from grc, βούτῡρον, meaning "butter"), also known under the systematic name butanoic acid, is a straight-chain alkyl carboxylic acid with the chemical formula CH3CH2CH2CO2H. It is an oily, colorless liquid with an unpleasant odor. Isobutyric acid (2-methylpropanoic acid) is an isomer. Salts and esters of butyric acid are known as butyrates or butanoates. The acid does not occur widely in nature, but its esters are widespread. It is a common industrial chemical and an important component in the mammalian gut. History Butyric acid was first observed in impure form in 1814 by the French chemist Michel Eugène Chevreul. By 1818, he had purified it sufficiently to characterize it. However, Chevreul did not publish his early research on butyric acid; instead, he deposited his findings in manuscript form with the secretary of the Academy of Sciences in Paris, France. Henri Braconnot, a French chemist, was also researching the composition of butter and was publ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Odor
An odor (American English) or odour (English in the Commonwealth of Nations, Commonwealth English; American and British English spelling differences#-our, -or, see spelling differences) is caused by one or more volatilized chemical compounds that are generally found in low concentrations that humans and animals can perceive via their sense of Sense of smell, smell. An odor is also called a "smell" or a "scent", which can refer to either a pleasant or an unpleasant odor. While "odor" and "smell" can refer to pleasant and unpleasant odors, the terms "scent", "aroma", and "fragrance" are usually reserved for pleasant-smelling odors and are frequently used in the food and cosmetic industry to describe floral scents or to refer to perfumes. Physiology of smell Sense of smell The perception of odors, or sense of smell, is mediated by the olfactory nerve. The olfactory receptor (OR) cells are neurons present in the olfactory epithelium, which is a small patch of tissue at th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sea Urchin
Sea urchins () are spiny, globular echinoderms in the class Echinoidea. About 950 species of sea urchin live on the seabed of every ocean and inhabit every depth zone from the intertidal seashore down to . The spherical, hard shells (tests) of sea urchins are round and spiny, ranging in diameter from . Sea urchins move slowly, crawling with tube feet, and also propel themselves with their spines. Although algae are the primary diet, sea urchins also eat slow-moving (sessile) animals. Predators that eat sea urchins include a wide variety of fish, starfish, crabs, marine mammals. Sea urchins are also used as food especially in Japan. Adult sea urchins have fivefold symmetry, but their pluteus larvae feature bilateral (mirror) symmetry, indicating that the sea urchin belongs to the Bilateria group of animal phyla, which also comprises the chordates and the arthropods, the annelids and the molluscs, and are found in every ocean and in every climate, from the tropics to the pol ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sebaceous
A sebaceous gland is a microscopic exocrine gland in the skin that opens into a hair follicle to secrete an oily or waxy matter, called sebum, which lubricates the hair and skin of mammals. In humans, sebaceous glands occur in the greatest number on the face and scalp, but also on all parts of the skin except the palms of the hands and soles of the feet. In the eyelids, meibomian glands, also called tarsal glands, are a type of sebaceous gland that secrete a special type of sebum into tears. Surrounding the female nipple, areolar glands are specialized sebaceous glands for lubricating the nipple. Fordyce spots are benign, visible, sebaceous glands found usually on the lips, gums and inner cheeks, and genitals. Structure Location Sebaceous glands are found throughout all areas of the skin, except the palms of the hands and soles of the feet. There are two types of sebaceous glands, those connected to hair follicles and those that exist independently. Sebaceous glands are found ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
