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Lamella (crab)
Lamella (: lamellae) means a small plate or flake in Latin, and in English may refer to: Biology * Lamella (mycology), a papery rib beneath a mushroom cap * Lamella (botany) * Lamella (surface anatomy), a plate-like structure in an animal * Lamella of osteon, the concentric circles around the central Haversian canals * Lamella (cell biology): ** (i) part of a chloroplast (thin extension of thylakoid joining different grana) ** (ii) the leading edge of motile cells, containing the lamellipodia * ''Lamella'' (crab), a group of land crabs in the family Gecarcinucidae * '' Uroleptus lamella'', a species of protozoans * Middle lamella, a pectin layer which cements the cell walls of two adjoining plant cells together * Lamellae, element of molar teeth in members of Elephantidae Other uses * "Lamella", a concept in the psychoanalytic theory of Jacques Lacan * Lamella (materials), a fine, plate-like structure, usually in a group * Lamellar armour * Lamella clarifier, an inclined-plate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lamella (mycology)
In mycology, a lamella (: lamellae), or gill, is a papery hymenophore rib under the cap of some mushroom species, most often agarics. The gills are used by the mushrooms as a means of spore dispersal, and are important for species identification. The attachment of the gills to the stem is classified based on the shape of the gills when viewed from the side, while color, crowding and the shape of individual gills can also be important features. Additionally, gills can have distinctive microscopic or macroscopic features. For instance, ''Lactarius'' species typically seep latex from their gills. It was originally believed that all gilled fungi were Agaricales, but as fungi were studied in more detail, some gilled species were demonstrated not to be. It is now clear that this is a case of convergent evolution (i.e. gill-like structures evolved separately) rather than being an anatomic feature that evolved only once. The apparent reason that various basidiomycetes have evolv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Middle Lamella
The middle lamella is a layer that cements together the primary cell walls of two adjoining plant cells. It is the first formed layer to be deposited at the time of cytokinesis. The cell plate that is formed during cell division itself develops into middle lamella or lamellum. The middle lamella is made up of calcium and magnesium pectates. In a mature plant cell it is the outermost layer of cell wall. In plants, the pectins form a unified and continuous layer between adjacent cells. Frequently, it is difficult to distinguish the middle lamella from the primary wall, especially in cells that develop thick secondary walls. In such cases, the two adjacent primary walls and the middle lamella, and perhaps the first layer of the secondary wall of each cell, may be called a compound middle lamella. When the middle lamella is degraded by enzymes, as happens during fruit ripening and abscission, the adjacent cells will separate.Raven P. H., Johnson G. B. (2001): Biology. McGraw-Hill ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lamella Clarifier
A lamella clarifier or inclined plate settler (IPS) is a type of clarifier designed to remove particulates from liquids. Range of applications Lamella (materials), Lamella clarifiers can be used in a range of industries, including mining and metal finishing, as well as to treat groundwater, industrial process water and Backwashing (water treatment), backwash from sand filters. Lamella clarifiers are ideal for applications where the solids loading is variable and the solids sizing is fine. They are more common than conventional clarifiers at many industrial sites, due to their smaller footprint. One specific application is pre-treatment for effluent entering Membrane technology, membrane filters. Lamella clarifiers are considered one of the best options for pre-treatment ahead of ultrafiltration. Their all-steel design minimizes the chances that part of the inclined plate will chip off and be carried over into the membrane, especially compared to tube settlers, which are made of p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lamellar Armour
Lamellar armour is a type of body armour made from small rectangular plates (scales or ''lamellae'') of iron, steel, leather ( rawhide), bone, or bronze laced into horizontal rows. Lamellar armour was used over a wide range of time periods in Central Asia, Eastern Asia (especially in China, Japan, Korea, Mongolia, and Tibet), Western Asia, and Eastern Europe. The earliest evidence for lamellar armour comes from sculpted artwork of the Neo-Assyrian Empire (911–609 BC) in the Near East. Lamellar armour should not be confused with laminar armour, a related form of plate armour which is made from horizontal overlapping rows or bands of solid armour plates (called lames) rather than scales. By comparison, lamellar armour is made from individual armour scales which are laced together to form a strip of armour which appears to be solid but is not. Description Lamellar armour consists of small platelets known as "lamellae" or "lames", which are punched and laced together, typical ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lamella (materials)
A lamella (: lamellae) is a small plate or flake, from the Latin, and may also refer to collections of fine sheets of material held adjacent to one another in a gill-shaped structure, often with fluid in between though sometimes simply a set of "welded" plates. The term is used in biological contexts for thin membranes of plates of tissue. In the context of materials science, the microscopic structures in bone and nacre are called lamellae. Moreover, the term lamella is often used to describe crystal structure of some materials. Uses of the term In surface chemistry (especially mineralogy and materials science), lamellar structures are fine layers, alternating between different materials. They can be produced by chemical effects (as in eutectic solidification), biological means, or a deliberate process of lamination, such as pattern welding. Lamellae can also describe the layers of atoms in the crystal lattices of materials such as metals. In surface anatomy, a lamella is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jacques Lacan
Jacques Marie Émile Lacan (, ; ; 13 April 1901 – 9 September 1981) was a French psychoanalyst and psychiatrist. Described as "the most controversial psycho-analyst since Sigmund Freud, Freud", Lacan gave The Seminars of Jacques Lacan, yearly seminars in Paris, from 1953 to 1981, and published papers that were later collected in the book ''Écrits''. Transcriptions of his seminars, given between 1954 and 1976, were also published. His work made a significant impact on continental philosophy and cultural theory in areas such as post-structuralism, critical theory, feminist theory and film theory, as well as on the practice of psychoanalysis itself. Lacan took up and discussed the whole range of Freudian concepts, emphasizing the philosophical dimension of Freud's thought and applying concepts derived from structuralism in linguistics and anthropology to its development in his own work, which he would further augment by employing formulae from predicate logic and Topological s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Psychoanalysis
PsychoanalysisFrom Greek language, Greek: and is a set of theories and techniques of research to discover unconscious mind, unconscious processes and their influence on conscious mind, conscious thought, emotion and behaviour. Based on The Interpretation of Dreams, dream interpretation, psychoanalysis is also a talk therapy method for treating of mental disorders."All psychoanalytic theories include the idea that unconscious thoughts and feelings are central in mental functioning." Milton, Jane, Caroline Polmear, and Julia Fabricius. 2011. ''A Short Introduction to Psychoanalysis''. Sage Group, SAGE. p. 27."What is psychoanalysis? Of course, one is supposed to answer that it is many things — a theory, a research method, a therapy, a body of knowledge. In what might be considered an unfortunately abbreviated description, Freud said that anyone who recognizes transference and resistance is a psychoanalyst, even if he comes to conclusions other than his own. … I prefer to think ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Four Fundamental Concepts Of Psychoanalysis
''The Four Fundamental Concepts of Psychoanalysis'' is the 1978 English-language translation of a seminar held by Jacques Lacan. The original () was published in Paris by Le Seuil in 1973. The Seminar was held at the École Normale Supérieure in Paris between January and June 1964 and is the eleventh in the series of The Seminar of Jacques Lacan. The text was published by Jacques-Alain Miller. Background In January 1963, Serge Leclaire succeeded Lacan as president of the S.F.P. (Societé Francaise de Psychanalyse). In May, envoys from the I.P.A ( International Psychoanalytic Association) visited Paris and meet with Leclaire. Not only did they express doubts about Lacan's attitude towards Freud, but they also claimed that Lacan manipulates transference through the short session: he must be excluded from the training courses. At the Congress of Stockholm, in July, the I.P.A. votes an ultimatum: within three months Lacan's name has to be crossed off the list of didacticians. Two w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Elephantidae
Elephantidae is a family (biology), family of large, herbivorous proboscidean mammals which includes the living Elephant, elephants (belonging to the genera ''Elephas'' and ''Loxodonta''), as well as a number of extinct genera like ''Mammuthus'' (mammoths) and ''Palaeoloxodon''. They are large terrestrial animal, terrestrial mammals with a snout modified into a Elephant#Trunk, trunk and teeth modified into tusks. Most Genus, genera and species in the family are extinction, extinct. The family was first described by John Edward Gray in 1821, and later assigned to taxonomic ranks within the order Proboscidea. Elephantidae has been revised by various authors to include or exclude other extinct proboscidean genera. Description Elephantids are distinguished from more basal proboscideans like gomphotheres by their teeth, which have parallel lophs, formed from the merger of the cusps found in the teeth of more basal proboscideans, which are bound by cementum. In later elephantids, t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Uroleptus Lamella
''Uroleptus lamella'' is a species of ciliates. Description The organism is green coloured, and is hairy. Just like '' Uroleptus musculus'', it is U-shape Many shapes have metaphorical names, i.e., their names are metaphors: these shapes are named after a most common object that has it. For example, "U-shape" is a shape that resembles the letter U, a bell-shaped curve has the shape of the vertical ...d and has an elongated body with 3 frontals, and 2-4 rows of ventral cirri. It has no transverse cirri, and its "collar" can extend a short distance along right side of the body. References Protists described in 1831 Spirotrichea Taxa named by Christian Gottfried Ehrenberg Ciliate species {{Ciliate-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lamella (botany)
This glossary of botanical terms is a list of definitions of terms and concepts relevant to botany and plants in general. Terms of plant morphology are included here as well as at the more specific Glossary of plant morphology and Glossary of leaf morphology. For other related terms, see Glossary of phytopathology, Glossary of lichen terms, and List of Latin and Greek words commonly used in systematic names. A B ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gecarcinucidae
The Gecarcinucidae are a family of true freshwater crabs. They are found throughout South Asia, Southeast Asia and New Guinea, with a single genus found in Australia. Taxonomy The family Parathelphusidae is now demoted to the rank of subfamily, as the Parathelphusinae, within the Gecarcinucidae. "Family" Parathelphusidae is now considered as a junior synonym. The Gecarcinucidae are thought to have originated in the Indian subcontinent when it was an island continent in the Paleogene, despite not being of ancient Gondwanan origins themselves (unlike other lineages that are thought to have originated in Insular India). Divergence estimates indicate that the Gecarcinucidae originate from Southeast Asian ancestors that dispersed to India during the middle Eocene, before India collided with Asia. This is thought to have occurred due to India drifting close enough to Southeast Asia to allow for biotic exchange between both regions. As the Gecarcinucidae are a freshwater group that ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
