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Louis Schwabe (1798-1845) was a manufacturer of silk and artificial silk fabrics in Manchester . He was noted for his pioneering work in the use of spinnerets for the production of an artificial glass based yarn. [ 1 ] [ 2 ] [ 3 ] | https://en.wikipedia.org/wiki/Louis_Schwabe |
Louis Thomas Jérôme Auzoux (7 April 1797 Saint-Aubin-d'Écrosville – 7 March 1880 Paris) was a French anatomist and naturalist .
Louis Auzoux obtained a medical degree in 1818 and was appointed to the surgical department of the Hotel-Dieu with Guillaume Dupuytren .
In 1820 he visited the papier-mâché workshop of Jean-... | https://en.wikipedia.org/wiki/Louis_Thomas_Jérôme_Auzoux |
The Louis and Beatrice Laufer Center for Physical and Quantitative Biology [ 1 ] (Laufer Center) is a multidisciplinary venue where research from fields such as biology, biochemistry, chemistry, computer science, engineering, genetics, mathematics, and physics come together and target medical and biological problems us... | https://en.wikipedia.org/wiki/Louis_and_Beatrice_Laufer_Center_for_Physical_and_Quantitative_Biology |
The Louisa Gross Horwitz Prize for Biology or Biochemistry is an annual prize awarded by Columbia University to a researcher or group of researchers who have made an outstanding contribution in basic research in the fields of biology or biochemistry .
The prize was established at the bequest of S. Gross Horwitz and is... | https://en.wikipedia.org/wiki/Louisa_Gross_Horwitz_Prize |
A louse-feeder was a job in interwar and Nazi-occupied Poland, at the Lviv Institute for Study of Typhus and Virology and the associated Institute in Kraków, Poland . Louse-feeders were human sources of blood for lice infected with typhus , which were then used to research possible vaccines against the disease.
Resear... | https://en.wikipedia.org/wiki/Louse-feeder |
Lovastatin , sold under the brand name Mevacor among others, is a statin medication , to treat high blood cholesterol and reduce the risk of cardiovascular disease . [ 2 ] Its use is recommended together with lifestyle changes. [ 2 ] It is taken by mouth. [ 2 ]
Common side effects include diarrhea, constipation, heada... | https://en.wikipedia.org/wiki/Lovastatin |
[ 1 ]
A love lock or love padlock is a padlock that couples lock to a bridge , fence , gate , monument , or similar public fixture to symbolize their love. [ 2 ] Typically the sweethearts' names or initials, and perhaps the date, are inscribed on the padlock, and its key is thrown away (often into a nearby river) to s... | https://en.wikipedia.org/wiki/Love_lock |
In theoretical physics , Lovelock's theory of gravity (often referred to as Lovelock gravity ) is a generalization of Einstein's theory of general relativity introduced by David Lovelock in 1971. [ 1 ] It is the most general metric theory of gravity yielding conserved second order equations of motion in an arbitrary nu... | https://en.wikipedia.org/wiki/Lovelock_theory_of_gravity |
In graph theory , the Lovász conjecture (1969) is a classical problem on Hamiltonian paths in graphs . It says:
Originally László Lovász stated the problem in the opposite way, but
this version became standard. In 1996, László Babai published a conjecture sharply contradicting this conjecture, [ 1 ] but both conjectu... | https://en.wikipedia.org/wiki/Lovász_conjecture |
In probability theory , if a large number of events are all independent of one another and each has probability less than 1, then there is a positive (possibly small) probability that none of the events will occur. The Lovász local lemma allows a slight relaxation of the independence condition: As long as the events ar... | https://en.wikipedia.org/wiki/Lovász_local_lemma |
In graph theory , the Lovász number of a graph is a real number that is an upper bound on the Shannon capacity of the graph. It is also known as Lovász theta function and is commonly denoted by ϑ ( G ) {\displaystyle \vartheta (G)} , using a script form of the Greek letter theta to contrast with the upright theta used ... | https://en.wikipedia.org/wiki/Lovász_number |
A low-FODMAP diet is a person's global restriction of consumption of all fermentable carbohydrates ( FODMAPs ), [ 1 ] recommended only for a short time. A low-FODMAP diet is recommended for managing patients with irritable bowel syndrome (IBS) and can reduce digestive symptoms of IBS including bloating and flatulence .... | https://en.wikipedia.org/wiki/Low-FODMAP_diet |
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The p75 neurotrophin receptor (p75NTR) was first identified in 1973 as the low-affinity nerve growth factor receptor (LNGFR) [ 5 ] [ 6 ] before discovery that p75NTR bound other neuro... | https://en.wikipedia.org/wiki/Low-affinity_nerve_growth_factor_receptor |
Low-angle laser light scattering or LALLS is an application of light scattering that is particularly useful in conjunction with the technique of Size exclusion chromatography , [ 1 ] one of the most powerful and widely used techniques to study the molecular mass distribution of a polymer.
Typically the eluent of the S... | https://en.wikipedia.org/wiki/Low-angle_laser_light_scattering |
A Low-barrier hydrogen bond ( LBHB ) is a special type of hydrogen bond . LBHBs can occur when the pKa of the two heteroatoms are closely matched, which allows the hydrogen to be more equally shared between them. This hydrogen-sharing causes the formation of especially short, strong hydrogen bonds. [ 1 ]
Standard hydr... | https://en.wikipedia.org/wiki/Low-barrier_hydrogen_bond |
Low cycle fatigue (LCF) has two fundamental characteristics: plastic deformation in each cycle; and low cycle phenomenon, in which the materials have finite endurance for this type of load. The term cycle refers to repeated applications of stress that lead to eventual fatigue and failure; low-cycle pertains to a long p... | https://en.wikipedia.org/wiki/Low-cycle_fatigue |
The low-density lipoprotein receptor gene family codes for a class of structurally related cell surface receptors that fulfill diverse biological functions in different organs, tissues, and cell types. [ 3 ] The role that is most commonly associated with this evolutionarily ancient family is cholesterol homeostasis (ma... | https://en.wikipedia.org/wiki/Low-density_lipoprotein_receptor_gene_family |
Low-energy electron diffraction ( LEED ) is a technique for the determination of the surface structure of single-crystalline materials by bombardment with a collimated beam of low-energy electrons (30–200 eV) [ 1 ] and observation of diffracted electrons as spots on a fluorescent screen.
LEED may be used in one of two... | https://en.wikipedia.org/wiki/Low-energy_electron_diffraction |
Low-energy ion scattering spectroscopy ( LEIS ), sometimes referred to simply as ion scattering spectroscopy ( ISS ), is a surface-sensitive analytical technique used to characterize the chemical and structural makeup of materials. LEIS involves directing a stream of charged particles known as ions at a surface and ma... | https://en.wikipedia.org/wiki/Low-energy_ion_scattering |
Low-energy plasma-enhanced chemical vapor deposition ( LEPECVD ) is a plasma-enhanced chemical vapor deposition technique used for the epitaxial deposition of thin semiconductor ( silicon , germanium and SiGe alloys ) films. A remote low energy, high density DC argon plasma is employed to efficiently decompose the gas ... | https://en.wikipedia.org/wiki/Low-energy_plasma-enhanced_chemical_vapor_deposition |
Low-gravity process engineering is a specialized field that focuses on the design, development, and optimization of industrial processes and manufacturing techniques in environments with reduced gravitational forces. [ 1 ] This discipline encompasses a wide range of applications, from microgravity conditions experience... | https://en.wikipedia.org/wiki/Low-gravity_process_engineering |
Low-impact development (LID) is a term used in Canada and the United States to describe a land planning and engineering design approach to manage stormwater runoff as part of green infrastructure . LID emphasizes conservation and use of on-site natural features to protect water quality . This approach implements engin... | https://en.wikipedia.org/wiki/Low-impact_development_(U.S._and_Canada) |
Low-latency queuing (LLQ) is a network scheduling feature developed by Cisco to bring strict priority queuing (PQ) to class-based weighted fair queuing (CBWFQ). LLQ allows delay-sensitive data (such as voice) to be given preferential treatment over other traffic by letting the data to be dequeued and sent first. [ 1 ]
... | https://en.wikipedia.org/wiki/Low-latency_queuing |
Low-level design ( LLD ) is a component-level design process that follows a step-by-step refinement process. This process can be used for designing data structures , required software architecture , source code and ultimately, performance algorithms . Overall, the data organization may be defined during requirement ana... | https://en.wikipedia.org/wiki/Low-level_design |
A low-power, wide-area network ( LPWAN or LPWA network ) is a type of wireless telecommunication wide area network designed to allow long-range communication at a low bit rate between IoT devices , such as sensors operated on a battery .
Low power , low bit rate, and intended use distinguish this type of network from ... | https://en.wikipedia.org/wiki/Low-power_wide-area_network |
A low-rise is a building that is only a few stories tall or any building that is shorter than a high-rise , [ 1 ] though others include the classification of mid-rise. [ 2 ] [ 3 ]
Emporis defines a low-rise as "an enclosed structure below 35 metres [115 feet] which is divided into regular floor levels". [ 4 ] The city... | https://en.wikipedia.org/wiki/Low-rise_building |
Low-rise high-density housing refers to residential developments which are typically 4 stories or less in height, have a high number of housing units per acre of land, and have between 35-80 dwellings per hectare. [ 1 ] This housing type is thought to provide a middle ground between detached single-family homes and hig... | https://en.wikipedia.org/wiki/Low-rise_high-density |
The low-temperature distillation (LTD) technology is the first implementation of the direct spray distillation (DSD) process. The first large-scale units are now in operation for desalination. The process was first developed by scientists at the University of Applied Sciences in Switzerland, focusing on low-temperature... | https://en.wikipedia.org/wiki/Low-temperature_distillation |
The following is a timeline of low-temperature technology and cryogenic technology ( refrigeration down to close to absolute zero , i.e. –273.15 °C, −459.67 °F or 0 K). [ 1 ] It also lists important milestones in thermometry , thermodynamics , statistical physics and calorimetry , that were crucial in development of lo... | https://en.wikipedia.org/wiki/Low-temperature_technology_timeline |
For environmental remediation , Low-temperature thermal desorption ( LTTD ), also known as low-temperature thermal volatilization , thermal stripping , and soil roasting , is an ex-situ remedial technology that uses heat to physically separate petroleum hydrocarbons from excavated soils. Thermal desorbers are designed ... | https://en.wikipedia.org/wiki/Low-temperature_thermal_desorption |
In semiconductor manufacturing, a low-κ is a material with a small relative dielectric constant (κ, kappa ) relative to silicon dioxide . Low-κ dielectric material implementation is one of several strategies used to allow continued scaling of microelectronic devices, colloquially referred to as extending Moore's law . ... | https://en.wikipedia.org/wiki/Low-κ_dielectric |
In computing , LBX , or Low Bandwidth X , is a protocol to use the X Window System over network links with low bandwidth and high latency . It was introduced in X11R6.3 ("Broadway") in 1996, but never achieved wide use. It was disabled by default as of X.Org Server 7.1, and was removed for version 7.2.
X was originall... | https://en.wikipedia.org/wiki/Low_Bandwidth_X |
In a low-IF receiver , the radio frequency (RF) signal is mixed down to a non-zero low or moderate intermediate frequency (IF). Typical frequency values are a few megahertz (instead of 33–40 MHz) for TV, and even lower frequencies, typically 120–130 kHz (instead of 10.7–10.8 MHz or 13.45 MHz) in the case of FM radio re... | https://en.wikipedia.org/wiki/Low_IF_receiver |
Low Copy Number (LCN) is a DNA profiling technique developed by the UK Forensic Science Service (FSS) which has been in use since 1999. [ 1 ]
In the United Kingdom use of the technique was suspended between 21 December 2007 and 14 January 2008 while the Crown Prosecution Service conducted a review into its use – this ... | https://en.wikipedia.org/wiki/Low_copy_number |
Low copy repeats ( LCRs ), also known as segmental duplications ( SDs ), or duplicons , are DNA sequences present in multiple locations within a genome that share high levels of sequence identity.
The repeats, or duplications, are typically 10–300 kb in length, and bear greater than 95% sequence identity . Though rare... | https://en.wikipedia.org/wiki/Low_copy_repeats |
Colossal magnetoresistance (CMR) is a property in many perovskite oxides. However, the requirement of large external magnetic field hinders the potential applications. On one hand, people were looking for the physical mechanisms for the CMR originality. On the other hand, people were trying to find alternative ways to ... | https://en.wikipedia.org/wiki/Low_field_magnetoresistance |
Low field NMR spans a range of different nuclear magnetic resonance (NMR) modalities, going from NMR conducted in permanent magnets , supporting magnetic fields of a few tesla (T), all the way down to zero field NMR , where the Earth's field is carefully shielded such that magnetic fields of nanotesla (nT) are achieved... | https://en.wikipedia.org/wiki/Low_field_nuclear_magnetic_resonance |
Low plasticity burnishing ( LPB ) cold compresses metal to provide deep, stable surface residual stresses to improve damage tolerance and extend metal fatigue life; mitigating surface damage, including fretting, corrosion pitting , stress corrosion cracking (SCC), and foreign object damage (FOD). Improved fretting fati... | https://en.wikipedia.org/wiki/Low_plasticity_burnishing |
Low technology ( low tech ; adjective forms: low-technology , low-tech , lo-tech ) is simple technology , as opposed to high technology . [ 1 ] In addition, low tech is related to the concept of mid-tech, that is a balance between low-tech and high-tech, which combines the efficiency and versatility of high tech with l... | https://en.wikipedia.org/wiki/Low_technology |
In electrical engineering, low voltage is a relative term, the definition varying by context. Different definitions are used in electric power transmission and distribution, compared with electronics design. Electrical safety codes define "low voltage" circuits that are exempt from the protection required at higher vo... | https://en.wikipedia.org/wiki/Low_voltage |
In proof compression LowerUnits ( LU ) is an algorithm used to compress propositional logic resolution proofs. The main idea of LowerUnits is to exploit the following fact: [ 1 ]
The algorithm targets exactly the class of global redundancy stemming from multiple resolutions with unit clauses. The algorithm takes its n... | https://en.wikipedia.org/wiki/LowerUnits |
In proof compression , an area of mathematical logic , LowerUnivalents is an algorithm used for the compression of propositional resolution proofs. LowerUnivalents is a generalised algorithm of the LowerUnits , and it is able to lower not only units but also subproofs of non-unit clauses, provided that they satisfy som... | https://en.wikipedia.org/wiki/LowerUnivalents |
Lower Seyhan Irrıgation Project ( Turkish : Aşağı Seyhan Sulama Projesi ) is one of the major irrigation projects of Turkey , which is located in the Seyhan River basin.
Seyhan is a 660 km (410 mi)-long river in southern Turkey, which flows into the Mediterranean Sea . The upper reaches of the river is in Taurus Mount... | https://en.wikipedia.org/wiki/Lower_Seyhan_Irrigation_Project |
The lower critical solution temperature ( LCST ) or lower consolute temperature is the critical temperature below which the components of a mixture are miscible in all proportions. [ 1 ] [ 2 ] The word lower indicates that the LCST is a lower bound to a temperature interval of partial miscibility, or miscibility for ce... | https://en.wikipedia.org/wiki/Lower_critical_solution_temperature |
The lower flammability limit ( LFL ), [ 1 ] usually expressed in volume per cent, is the lower end of the concentration range over which a flammable mixture of gas or vapour in air can be ignited at a given temperature and pressure. The flammability range is delineated by the upper and lower flammability limits. Outsid... | https://en.wikipedia.org/wiki/Lower_flammability_limit |
The IUCN has many ranks that define an animal's population and risk of extinction. [ 1 ] Species are classified into one of nine Red List Categories: Extinct , Extinct in the Wild , Critically Endangered , Endangered , Vulnerable , Near Threatened , Least Concern , Data Deficient , and Not Evaluated . [ 2 ] They former... | https://en.wikipedia.org/wiki/Lower_risk |
The lowest-observed-adverse-effect level ( LOAEL ), or the lowest-observed-adverse-effect concentration ( LOAEC ), is the lowest concentration or amount of a substance found by experiment or observation that causes an adverse alteration of morphology , function, capacity, growth, development, or lifespan of a target or... | https://en.wikipedia.org/wiki/Lowest-observed-adverse-effect_level |
In toxicology , the lowest published toxic dose ( Toxic Dose Low , TD Lo ) is the lowest dosage per unit of bodyweight (typically stated in milligrams per kilogram ) of a substance known to have produced signs of toxicity in a particular animal species . [ 1 ] When quoting a TD Lo , the particular species and method of... | https://en.wikipedia.org/wiki/Lowest_published_toxic_dose |
The Lowry protein assay is a biochemical assay for determining the total level of protein in a solution . The total protein concentration is exhibited by a color change of the sample solution in proportion to protein concentration, which can then be measured using colorimetric techniques . It is named for the biochemis... | https://en.wikipedia.org/wiki/Lowry_protein_assay |
lp0 on fire (also known as Printer on Fire ) is an outdated error message generated on some Unix and Unix-like computer operating systems in response to certain types of printer errors. lp0 is the Unix device handle for the first line printer , but the error can be displayed for any printer attached to a Unix or Linux ... | https://en.wikipedia.org/wiki/Lp0_on_fire |
Lutetium(III) oxide , a white solid, is a cubic compound of lutetium sometimes used in the preparation of specialty glasses . It is also called lutecia . It is a lanthanide oxide, also known as a rare earth . [ 2 ] [ 3 ] [ 4 ]
In 1879, Swiss chemist Jean Charles Galissard de Marignac (1817–1894) claimed to have discov... | https://en.wikipedia.org/wiki/Lu2O3 |
Lutetium vanadate is inorganic compound with ferromagnetic and semiconducting properties, with the chemical formula of Lu 2 V 2 O 7 [ 1 ] with the same structure as pyrochlore . [ 2 ]
Lutetium vanadate can be obtained by the reaction between lutetium oxide , vanadium trioxide and vanadium pentoxide at a high temperatu... | https://en.wikipedia.org/wiki/Lu2V2O7 |
Lutetium(III) bromide is a crystalline compound made of one lutetium atom and three bromine atoms. [ 2 ] It takes the form of a white powder at room temperature. [ 1 ] It is hygroscopic . [ 2 ] It is odorless . [ 5 ]
Lutetium(III) bromide can be synthesized through the following reaction: [ 6 ]
If burned, lutetium(II... | https://en.wikipedia.org/wiki/LuBr3 |
Lutetium(III) chloride or lutetium trichloride is the chemical compound composed of lutetium and chlorine with the formula LuCl 3 . It forms hygroscopic white monoclinic crystals [ 3 ] and also a hygroscopic hexahydrate LuCl 3 ·6H 2 O. [ 6 ] Anhydrous lutetium(III) chloride has the YCl 3 (AlCl 3 ) layer structure with ... | https://en.wikipedia.org/wiki/LuCl3 |
Lutetium(III) fluoride is an inorganic compound with a chemical formula LuF 3 .
Lutetium(III) fluoride can be produced by reacting lutetium oxide with hydrogen fluoride , or reacting lutetium chloride and hydrofluoric acid : [ 3 ]
It can also be produced by reacting lutetium sulfide and hydrofluoric acid : [ 4 ]
Lut... | https://en.wikipedia.org/wiki/LuF3 |
Lu Gwei-djen ( Chinese : 魯桂珍 ; pinyin : Lǔ Guìzhēn ; Wade–Giles : Lu Kui-chen ; July 22, 1904 – November 28, 1991) was a Chinese biochemist and historian. She was an expert on the history of science and technology in China and a researcher of nutriology . She was an important researcher and co-author of the project Sc... | https://en.wikipedia.org/wiki/Lu_Gwei-Djen_Prize_for_the_History_of_Science |
Lubachevsky-Stillinger (compression) algorithm (LS algorithm, LSA, or LS protocol) is a numerical procedure suggested by F. H. Stillinger and Boris D. Lubachevsky that simulates or imitates a physical process of compressing an assembly of hard particles. [ 1 ] As the LSA may need thousands of arithmetic operations even... | https://en.wikipedia.org/wiki/Lubachevsky–Stillinger_algorithm |
In combinatorial mathematics , the Lubell–Yamamoto–Meshalkin inequality , more commonly known as the LYM inequality , is an inequality on the sizes of sets in a Sperner family , proved by Bollobás (1965) , Lubell (1966) , Meshalkin (1963) , and Yamamoto (1954) . It is named for the initials of three of its discoverers.... | https://en.wikipedia.org/wiki/Lubell–Yamamoto–Meshalkin_inequality |
A lubricant (sometimes shortened to lube ) is a substance that helps to reduce friction between surfaces in mutual contact, which ultimately reduces the heat generated when the surfaces move. It may also have the function of transmitting forces, transporting foreign particles, or heating or cooling the surfaces. The pr... | https://en.wikipedia.org/wiki/Lubricant |
Lubrication is the process or technique of using a lubricant to reduce friction and wear and tear in a contact between two surfaces. The study of lubrication is a discipline in the field of tribology .
Lubrication mechanisms such as fluid-lubricated systems are designed so that the applied load is partially or complet... | https://en.wikipedia.org/wiki/Lubrication |
In fluid dynamics , lubrication theory describes the flow of fluids ( liquids or gases ) in a geometry in which one dimension is significantly smaller than the others. An example is the flow above air hockey tables, where the thickness of the air layer beneath the puck is much smaller than the dimensions of the puck i... | https://en.wikipedia.org/wiki/Lubrication_theory |
Lubricity is the measure of the reduction in friction and/or wear by a lubricant . The study of lubrication and wear mechanisms is called tribology .
The lubricity of a substance is not a material property, and cannot be measured directly. Tests are performed to quantify a lubricant's performance for a specific system... | https://en.wikipedia.org/wiki/Lubricity |
In computer science , Luby transform codes ( LT codes ) are the first class of practical fountain codes that are near-optimal erasure correcting codes . They were invented by Michael Luby in 1998 and published in 2002. [ 1 ] Like some other fountain codes , LT codes depend on sparse bipartite graphs to trade reception ... | https://en.wikipedia.org/wiki/Luby_transform_code |
Luca Comai is an Italian plant biologist whose work has focused on trait discovery for improving agricultural crops and on developing protocols and systems for identifying new genes and mutations in plants. Through his work at Calgene , Comai was one of the first discoverers of the glyphosate resistance gene and is con... | https://en.wikipedia.org/wiki/Luca_Comai |
Luca Incurvati is a logician and philosopher , currently an associate professor at the Institute for Logic, Language and Computation , University of Amsterdam . Incurvati's research areas include set theory , philosophy of mathematics , philosophy of language , and metaethics . In set theory and philosophy of maths, In... | https://en.wikipedia.org/wiki/Luca_Incurvati |
Luca Turin (born 20 November 1953) is a biophysicist and writer with a long-standing interest in bioelectronics, the sense of smell, perfumery, and the fragrance industry.
Turin was born in Beirut , Lebanon on 20 November 1953 into an Italian-Argentinian family, and raised in France, Italy and Switzerland. His father... | https://en.wikipedia.org/wiki/Luca_Turin |
The reflected binary code ( RBC ), also known as reflected binary ( RB ) or Gray code after Frank Gray , is an ordering of the binary numeral system such that two successive values differ in only one bit (binary digit).
For example, the representation of the decimal value "1" in binary would normally be " 001 ", and "... | https://en.wikipedia.org/wiki/Lucal_code |
"Lucas' reagent" is a solution of anhydrous zinc chloride in concentrated hydrochloric acid . This solution is used to classify alcohols of low molecular weight. The reaction is a substitution in which the chloride replaces a hydroxyl group. A positive test is indicated by a change from clear and colourless to turbid... | https://en.wikipedia.org/wiki/Lucas'_reagent |
In number theory , Lucas's theorem expresses the remainder of division of the binomial coefficient ( m n ) {\displaystyle {\tbinom {m}{n}}} by a prime number p in terms of the base p expansions of the integers m and n .
Lucas's theorem first appeared in 1878 in papers by Édouard Lucas . [ 1 ]
For non-negative integer... | https://en.wikipedia.org/wiki/Lucas's_theorem |
In probability theory , Luce's choice axiom , formulated by R. Duncan Luce (1959), [ 1 ] states that the relative odds of selecting one item over another from a pool of many items is not affected by the presence or absence of other items in the pool. Selection of this kind is said to have " independence from irrelevant... | https://en.wikipedia.org/wiki/Luce's_choice_axiom |
Luche reduction is the selective organic reduction of α,β-unsaturated ketones to allylic alcohols . [ 1 ] [ 2 ] [ 3 ] The active reductant is described as "cerium borohydride", which is generated in situ from NaBH 4 and CeCl 3 (H 2 O) 7 . [ 4 ]
The Luche reduction can be conducted chemoselectively toward ketone in the... | https://en.wikipedia.org/wiki/Luche_reduction |
Luchezar L. Avramov ( Bulgarian : Лъчезар Л. Аврамов ) is a Bulgarian-American mathematician who works in commutative algebra . He held the Dale M. Jensen Chair in Mathematics at the University of Nebraska , and is now an Emeritus. [ 1 ]
Avramov was educated at Moscow State University , earning a master's degree in 19... | https://en.wikipedia.org/wiki/Luchezar_Avramov |
Lucia V. Streng (November 6, 1909 – April 28, 1995) was a Russian-born American chemist . She spent much of her career studying the noble gases and their properties, successfully synthesizing krypton difluoride . She and her husband, Alex G. Streng , both held positions at Temple University . [ 2 ]
Streng was among th... | https://en.wikipedia.org/wiki/Lucia_V._Streng |
Lucid Nation is an American Los Angeles -based experimental rock band formed in 1995 made up of Tamra Spivey (stage name Tamra Lucid) and R.C. Hogart (stage name Ronnie Pontiac).
Lucid Nation was formed in Los Angeles in 1994, when founding drummer, Debbie Haliday, joined Spivey and Ronnie Pontiac to form a riot grrr... | https://en.wikipedia.org/wiki/Lucid_Nation |
Lucidchart is a web-based diagramming application [ 2 ] that allows users to visually collaborate on drawing, revising and sharing charts and diagrams, and improve processes, systems, and organizational structures. [ 3 ] [ 4 ] [ 5 ] It is produced by Lucid Software Inc., based in Utah , United States [ 3 ] [ 6 ] and co... | https://en.wikipedia.org/wiki/Lucidchart |
Lucideon (formerly Ceram ) is an independent materials development, testing and assurance company based in Stoke-on-Trent and in the UK. Lucideon owns testing facilities around the world.
The British Refractories Research Association was formed in 1920. The pottery industry was required by the Import Duties Advisory C... | https://en.wikipedia.org/wiki/Lucideon |
Lucie Blanquies was a woman scientist who worked in Madame Curie 's laboratory in Paris from 1908 to 1910. She measured the power of the alpha particles emitted by different radioactive materials. [ 1 ] [ 2 ] [ 3 ]
This biographical article about a chemist is a stub . You can help Wikipedia by expanding it . | https://en.wikipedia.org/wiki/Lucie_Blanquies |
Luciferase is a generic term for the class of oxidative enzymes that produce bioluminescence , and is usually distinguished from a photoprotein . The name was first used by Raphaël Dubois who invented the words luciferin and luciferase , for the substrate and enzyme , respectively. [ 1 ] Both words are derived from the... | https://en.wikipedia.org/wiki/Luciferase |
Luciferin (from Latin lucifer ' light-bearer ' ) is a generic term for the light-emitting compound found in organisms that generate bioluminescence . Luciferins typically undergo an enzyme -catalyzed reaction with molecular oxygen . The resulting transformation, which usually involves breaking off a molecular fragment,... | https://en.wikipedia.org/wiki/Luciferin |
Lucilia mexicana is a species of blow fly of the family Calliphoridae , one of many species known as a green bottle fly . Its habitat range extends from southwestern North America to Brazil . L. mexicana is typically 6–9 mm in length with metallic blue-green coloring. This species is very similar in appearance to L. co... | https://en.wikipedia.org/wiki/Lucilia_mexicana |
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Lucinidae , common name hatchet shells , is a family of saltwater clams , marine bivalve molluscs .
These bivalves are remarkable for their endosymbiosis with sulphide -oxidizing bacteria . [ 1 ]
The members of this family have a worldwide distribution. They are found in muddy sand or gravel at or below lo... | https://en.wikipedia.org/wiki/Lucinidae |
Lucy Marie Ziurys (born May 6, 1957) [ 1 ] is an American astrochemist known for her work on high-resolution molecular spectroscopy . She is Regent's Professor of Chemistry & Biology and of Astronomy at the University of Arizona . [ 2 ]
Ziurys's work has discovered new molecules in interstellar space and in carbon-ric... | https://en.wikipedia.org/wiki/Lucy_Ziurys |
In proof theory , ludics is an analysis of the principles governing inference rules of mathematical logic . Key features of ludics include notion of compound connectives, using a technique known as focusing or focalisation (invented by the computer scientist Jean-Marc Andreoli ), and its use of locations or loci over a... | https://en.wikipedia.org/wiki/Ludics |
A Ludwieg tube is a cheap and efficient way of producing supersonic flow. Mach numbers up to 4 in air are easily obtained without any additional heating of the flow. With heating, Mach numbers of up to 11 can be reached.
A Ludwieg tube is a wind tunnel that produces supersonic flow for short periods of time. A large e... | https://en.wikipedia.org/wiki/Ludwieg_tube |
The Ludwig Biermann Award is an annual prize awarded by the German Astronomische Gesellschaft (German Astronomical Society) to an outstanding young astronomer . [ 1 ] The prize is named in honour of the German astronomer Ludwig Biermann and was first awarded in 1989, three years after his death. Nominees for the award ... | https://en.wikipedia.org/wiki/Ludwig_Biermann_Award |
Ludwig Blattner (5 February 1880 – 29 October 1935) was a German-born inventor, film producer, director and studio owner in the United Kingdom, and developer of one of the earliest magnetic sound recording devices. [ 1 ]
Ludwig Blattner, also known as Louis Blattner , [ 2 ] was a pioneer of early magnetic sound record... | https://en.wikipedia.org/wiki/Ludwig_Blattner |
Ludwig Josef Johann Wittgenstein ( / ˈ v ɪ t ɡ ən ʃ t aɪ n , - s t aɪ n / VIT -gən-s(h)tyne ; [ 6 ] Austrian German: [ˈluːdvɪɡ ˈjoːsɛf ˈjoːhan ˈvɪtɡn̩ʃtaɪn] ; 26 April 1889 – 29 April 1951) was an Austrian philosopher who worked primarily in logic , the philosophy of mathematics , the philosophy of mind , and the philo... | https://en.wikipedia.org/wiki/Ludwig_Wittgenstein |
Ludwig Wittgenstein considered his chief contribution to be in the philosophy of mathematics , a topic to which he devoted much of his work between 1929 and 1944. [ 1 ] As with his philosophy of language , Wittgenstein's views on mathematics evolved from the period of the Tractatus Logico-Philosophicus : with him chang... | https://en.wikipedia.org/wiki/Ludwig_Wittgenstein's_philosophy_of_mathematics |
The Ludwik Fleck Prize is an annual award given for a book in the field of science and technology studies . It was created by the 4S Council ( Society for the Social Studies of Science ) in 1992 and is named after microbiologist Ludwik Fleck . [ 1 ] [ 2 ]
The prize is named after the Polish microbiologist and sociolog... | https://en.wikipedia.org/wiki/Ludwik_Fleck_Prize |
In biochemistry, the Luebering–Rapoport pathway (also called the Luebering–Rapoport shunt) is a metabolic pathway in mature erythrocytes involving the formation of 2,3-bisphosphoglycerate (2,3-BPG), which regulates oxygen release from hemoglobin and delivery to tissues. 2,3-BPG, the reaction product of the Luebering–Ra... | https://en.wikipedia.org/wiki/Luebering–Rapoport_pathway |
German Luftwaffe and Kriegsmarine Radar Equipment during World War II, relied on an increasingly diverse array of communications, IFF and RDF equipment for its function. Most of this equipment received the generic prefix FuG ( German : Funkgerät ), meaning "radio equipment". During the war, Germany renumbered their rad... | https://en.wikipedia.org/wiki/Luftwaffe_and_Kriegsmarine_radar_equipment_of_World_War_II |
During World War II , the German Luftwaffe relied on an increasingly diverse array of electronic communications, IFF and RDF equipment as avionics in its aircraft and also on the ground. Most of this equipment received the generic prefix FuG for Funkgerät , meaning "radio equipment". Most of the aircraft-mounted Radar ... | https://en.wikipedia.org/wiki/Luftwaffe_radio_equipment_of_World_War_II |
A Lugeon is a unit devised to quantify the water permeability of bedrock and the hydraulic conductivity resulting from fractures; it is named after Maurice Lugeon , a Swiss geologist who first formulated the method in 1933. More specifically, the Lugeon test is used to measure the amount of water injected into a segmen... | https://en.wikipedia.org/wiki/Lugeon |
A Luggin capillary (also Luggin probe , Luggin tip , or Luggin-Haber capillary ) is a small tube that is used in electrochemistry . The capillary defines a clear sensing point for the reference electrode near the working electrode . [ 1 ] [ 2 ] This is in contrast to the poorly defined, large reference electrode. [ cla... | https://en.wikipedia.org/wiki/Luggin_capillary |
Lugol's iodine , also known as aqueous iodine and strong iodine solution , is a solution of potassium iodide with iodine in water. [ 2 ] It is a medication and disinfectant used for a number of purposes. [ 3 ] [ 4 ] Taken by mouth it is used to treat thyrotoxicosis until surgery can be carried out, protect the thyroid ... | https://en.wikipedia.org/wiki/Lugol's_iodine |
The Luhn algorithm or Luhn formula , also known as the " modulus 10" or "mod 10" algorithm , named after its creator, IBM scientist Hans Peter Luhn , is a simple check digit formula used to validate a variety of identification numbers. It is described in US patent 2950048A, granted on 23 August 1960. [ 1 ]
The algorit... | https://en.wikipedia.org/wiki/Luhn_algorithm |
The Luhn mod N algorithm is an extension to the Luhn algorithm (also known as mod 10 algorithm) that allows it to work with sequences of values in any even-numbered base . This can be useful when a check digit is required to validate an identification string composed of letters, a combination of letters and digits or a... | https://en.wikipedia.org/wiki/Luhn_mod_N_algorithm |
Luigi Maria Venanzi was an inorganic chemist who was recognized for diverse contributions to coordination chemistry . He was born in Italy in 1927. [ 1 ]
After receiving his diplom degree at the University of Kiel , he took a position at ICI Laboratories, where he published extensively with Joseph Chatt . He then pr... | https://en.wikipedia.org/wiki/Luigi_M._Venanzi |
Luigi Sacconi was an Italian inorganic chemist who gained renown for contributions to coordination chemistry . He was born on February 28, 1911 in S. Croce sull'Arno. He died September 1, 1992. He received a Doctor of Pharmacy at the University of Florence. He was on the faculties at the University of Parma, Turin, a... | https://en.wikipedia.org/wiki/Luigi_Sacconi |
In statistics , Lukacs's proportion-sum independence theorem is a result that is used when studying proportions, in particular the Dirichlet distribution . It is named after Eugene Lukacs . [ 1 ]
If Y 1 and Y 2 are non-degenerate, independent random variables , then the random variables
are independently distributed ... | https://en.wikipedia.org/wiki/Lukacs's_proportion-sum_independence_theorem |
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