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Deficiency Act Of 1919
A deficiency is generally a lack of something. It may also refer to: *A deficient number, in mathematics, a number ''n'' for which ''σ''(''n'') < 2''n'' * , in geometry, the difference between a sum of angles and the corresponding sum in a Euclidean plane * , a property describing how far a given graph is from having a perfect matching *, including various types of malnutrition, as well as genetic diseases caused by deficiencies of endogenously produced proteins *A deficiency in |
Deficient Number
In number theory, a deficient number or defective number is a number ''n'' for which the sum of divisors of ''n'' is less than 2''n''. Equivalently, it is a number for which the sum of proper divisors (or aliquot sum) is less than ''n''. For example, the proper divisors of 8 are 1, 2, and 4, and their sum is less than 8, so 8 is deficient. Denoting by ''σ''(''n'') the sum of divisors, the value 2''n'' − ''σ''(''n'') is called the number's deficiency. In terms of the aliquot sum ''s''(''n''), the deficiency is ''n'' − ''s''(''n''). Examples The first few deficient numbers are :1, 2, 3, 4, 5, 7, 8, 9, 10, 11, 13, 14, 15, 16, 17, 19, 21, 22, 23, 25, 26, 27, 29, 31, 32, 33, 34, 35, 37, 38, 39, 41, 43, 44, 45, 46, 47, 49, 50, ... As an example, consider the number 21. Its divisors are 1, 3, 7 and 21, and their sum is 32. Because 32 is less than 42, the number 21 is deficient. Its deficiency is 2 × 21 − 32 = 10. Properties Since the aliquot ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Angular Deficiency
In geometry, the (angular) defect (or deficit or deficiency) means the failure of some angles to add up to the expected amount of 360° or 180°, when such angles in the Euclidean plane would. The opposite notion is the excess. Classically the defect arises in two ways: * the defect of a vertex of a polyhedron; * the defect of a hyperbolic triangle; and the excess also arises in two ways: * the excess of a toroidal polyhedron. * the excess of a spherical triangle; In the Euclidean plane, angles about a point add up to 360°, while interior angles in a triangle add up to 180° (equivalently, ''exterior'' angles add up to 360°). However, on a convex polyhedron the angles at a vertex add up to less than 360°, on a spherical triangle the interior angles always add up to more than 180° (the exterior angles add up to ''less'' than 360°), and the angles in a hyperbolic triangle always add up to less than 180° (the exterior angles add up to ''more'' than 360°). In modern terms, the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Deficiency (graph Theory)
Deficiency is a concept in graph theory that is used to refine various theorems related to perfect matching in graphs, such as Hall's marriage theorem. This was first studied by Øystein Ore. A related property is surplus. Definition of deficiency Let be a graph, and let ''U'' be an independent set of vertices, that is, ''U'' is a subset of ''V'' in which no two vertices are connected by an edge. Let denotes the set of neighbors of ''U'', which is formed by all vertices from 'V' that are connected by an edge to one or more vertices of ''U''. The deficiency of the set ''U'' is defined by: :\mathrm_G(U) := , U, - , N_G(U), Suppose ''G'' is a bipartite graph, with bipartition ''V'' = ''X'' ∪ ''Y''. The deficiency of ''G'' with respect to one of its parts (say ''X''), is the maximum deficiency of a subset of ''X'': :\mathrm(G;X) := \max_ \mathrm_G(U) Sometimes this quantity is called the critical difference of ''G''. Note that defG of the empty subset is 0, so def(''G;''X) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Deficiency (medicine)
In medicine, a deficiency is a lack or shortage of a functional entity, by less than normal or necessary supply or function.TheFreeDictionary > deficiency Citing: *Dorland's Medical Dictionary for Health Consumers. © 2007 * Miller-Keane Encyclopedia & Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. 2003 Nutrients Malnutrition can cause various effects by deficiency of one or more nutrients. For example, vitamin A deficiency causes symptoms such as xerophthalmia (dry eyes) and night blindness. Endogenously produced proteins Deficiencies of endogenously produced proteins such as enzymes are the underlying mechanisms of almost all genetic disorders, for example the inborn errors of metabolism Inborn errors of metabolism form a large class of genetic diseases involving congenital disorders of enzyme activities. The majority are due to defects of single genes that code for enzymes that facilitate conversion of various substances ( substra .... See also * Complem ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Construction
Construction is a general term meaning the art and science to form objects, systems, or organizations,"Construction" def. 1.a. 1.b. and 1.c. ''Oxford English Dictionary'' Second Edition on CD-ROM (v. 4.0) Oxford University Press 2009 and comes from Latin ''constructio'' (from ''com-'' "together" and ''struere'' "to pile up") and Old French ''construction''. To construct is the verb: the act of building, and the noun is construction: how something is built, the nature of its structure. In its most widely used context, construction covers the processes involved in delivering buildings, infrastructure, industrial facilities and associated activities through to the end of their life. It typically starts with planning, financing, and design, and continues until the asset is built and ready for use; construction also covers repairs and maintenance work, any works to expand, extend and improve the asset, and its eventual demolition, dismantling or decommissioning. The constructio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genetic Deletion
In genetics, a deletion (also called gene deletion, deficiency, or deletion mutation) (sign: Δ) is a mutation (a genetic aberration) in which a part of a chromosome or a sequence of DNA is left out during DNA replication. Any number of nucleotides can be deleted, from a single base to an entire piece of chromosome. Some chromosomes have fragile spots where breaks occur which result in the deletion of a part of chromosome. The breaks can be induced by heat, viruses, radiations, chemicals. When a chromosome breaks, a part of it is deleted or lost, the missing piece of chromosome is referred to as deletion or a deficiency. For synapsis to occur between a chromosome with a large intercalary deficiency and a normal complete homolog, the unpaired region of the normal homolog must loop out of the linear structure into a deletion or compensation loop. The smallest single base deletion mutations occur by a single base flipping in the template DNA, followed by template DNA strand slip ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Deficiency Judgment
A deficiency judgment is an unsecured money judgment against a borrower whose mortgage foreclosure sale did not produce sufficient funds to pay the underlying promissory note, or loan, in full. The availability of a deficiency judgment depends on whether the lender has a recourse or nonrecourse loan, which is largely a matter of state law. In some jurisdictions, the original loan(s) obtained to purchase property is/are non-recourse, but subsequent refinancing of a first mortgage and/or acquisition of a 2nd (3rd, etc.) are recourse loans. In short, many jurisdictions hold that the loans obtained at the acquisition of a property ("purchase-money") are non-recourse, and most, if not all, subsequent loans are recourse. States that follow the title (trust-deed) theory of mortgages typically allow non-judicial foreclosure procedures, which are fast, but do not allow deficiency judgments. States that follow the lien theory of mortgages require judiciary foreclosure procedures, but allow ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tax Deficiency
A tax is a compulsory financial charge or some other type of levy imposed on a taxpayer (an individual or legal entity) by a governmental organization in order to fund government spending and various public expenditures (regional, local, or national), and tax compliance refers to policy actions and individual behaviour aimed at ensuring that taxpayers are paying the right amount of tax at the right time and securing the correct tax allowances and tax reliefs. The first known taxation took place in Ancient Egypt around 3000–2800 BC. A failure to pay in a timely manner ( non-compliance), along with evasion of or resistance to taxation, is punishable by law. Taxes consist of direct or indirect taxes and may be paid in money or as its labor equivalent. Most countries have a tax system in place, in order to pay for public, common societal, or agreed national needs and for the functions of government. Some levy a flat percentage rate of taxation on personal annual income, but mos ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mangel
Mangel or Mangels may refer to: People * Mangel (surname) * Mangels (surname) * Mangel (footballer), full name ''Miguel Ángel Prendes Pérez'', Spanish footballer Places * Mangel, Nigeria, a Tiv village in Benue State Fictional places * Mangel, an English town in Charlie Williams's Mangel Trilogy Other uses *Mangels-Illions Carousel, a carousel at the Columbus Zoo and Aquarium *Mangel Trilogy, three books set in the fictional town of Mangel, by Charlie Williams *Mangelwurzel, Mangel wurzel, a root vegetable, used as animal fodder, member of the ''Beta vulgaris'' family *Mangel, a defunct clothing store and former owner of Shoppers Fair Shoppers Fair was an American discount department store chain. It was founded in 1956 in Bridgeport, Connecticut and owned by New York City-based Mangel, but primarily operated in the state of Michigan. The chain closed the last of its stores in 19 ... stores See also * Mangle (other) * Mangal (other) {{disambiguati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
