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SVET ( Russian : свет , "light") was a plant cultivation unit on the Kristall module of the Mir space station. It was installed in 1990 and operated until 2001. [ 1 ] Brassica rapa was successfully grown there in 1997. [ 2 ] [ 3 ]
The project was a joint Russian-Bulgarian one, developed at the Space Research and Techn... | https://en.wikipedia.org/wiki/SVET_plant_growth_system |
The SVI-838 , also known as X'press 16 , is the last microcomputer produced by Spectravideo (at Hong Kong ). Although it was a PC clone , it had the standard sound and video coprocessors of the MSX2 , making it a hybrid system. [ 1 ] The sales were unimpressive and it is now considered a collectible .
With a SVI-811 a... | https://en.wikipedia.org/wiki/SVI-838 |
SWAT ( soil and water assessment tool ) is a river basin scale model developed to quantify the impact of land management practices in large, complex watersheds. SWAT is a public domain software enabled model actively supported by the USDA Agricultural Research Service at the Blackland Research & Extension Center in Tem... | https://en.wikipedia.org/wiki/SWAT_model |
SWEPOS is a support system for accurate measurement of Swedish geography using a network of fixed reference stations which gather GNSS data. The SWEPOS system permits mobile GPS / GLONASS [ 1 ] receivers to receive detailed positioning data down to the centimeter level. The SWEPOS network of reference stations began as... | https://en.wikipedia.org/wiki/SWEPOS |
SWISS TXT (SWISS TXT Corporation) (until December 2015: SWISS TXT Schweizerische Teletext AG) is a subsidiary and the centre of multimedia expertise of the Swiss Broadcasting Corporation . [ 1 ] [ 2 ]
The company was founded on 23 December 1983 with a licence granted by the Swiss Federal Council Teletext Licence. [ 3 ... | https://en.wikipedia.org/wiki/SWISS_TXT |
SWORD ( Simple Web-service Offering Repository Deposit ) is an interoperability standard that allows digital repositories to accept the deposit of content from multiple sources in different formats (such as XML documents) via a standardized protocol . In the same way that the HTTP protocol allows any web browser to ta... | https://en.wikipedia.org/wiki/SWORD_(protocol) |
A standing wave ratio meter , SWR meter , ISWR meter (current " I " SWR), or VSWR meter (voltage SWR) measures the standing wave ratio (SWR) in a transmission line . [ a ] The meter indirectly measures the degree of mismatch between a transmission line and its load (usually an antenna ). Electronics technicians use it... | https://en.wikipedia.org/wiki/SWR_meter |
SX000i - International guide for the use of the S-Series of Integrated Logistics Support (ILS) specifications , is a specification developed jointly by a multinational team from the AeroSpace and Defence Industries Association of Europe (ASD) and Aerospace Industries Association (AIA). [ 1 ] SX000i is part of the S-Ser... | https://en.wikipedia.org/wiki/SX000i |
The SYBYL line notation or SLN is a specification for unambiguously describing the structure of chemical molecules using short ASCII strings . SLN differs from SMILES in several significant ways. SLN can specify molecules, molecular queries, and reactions in a single line notation whereas SMILES handles these through l... | https://en.wikipedia.org/wiki/SYBYL_line_notation |
The SYZ conjecture is an attempt to understand the mirror symmetry conjecture, an issue in theoretical physics and mathematics. The original conjecture was proposed in a paper by Strominger , Yau , and Zaslow , entitled "Mirror Symmetry is T -duality". [ 1 ]
Along with the homological mirror symmetry conjecture , it i... | https://en.wikipedia.org/wiki/SYZ_conjecture |
S is an axiomatic set theory set out by George Boolos in his 1989 article, "Iteration Again". S , a first-order theory, is two-sorted because its ontology includes "stages" as well as sets . Boolos designed S to embody his understanding of the "iterative conception of set" and the associated iterative hierarchy . S has... | https://en.wikipedia.org/wiki/S_(set_theory) |
S-phase index ( SPI ), is a measure of cell growth and viability , especially the capacity of tumor cells to proliferate. [ 1 ] It is defined as the number of BrdU -incorporating cells relative to the volume of DNA staining determined from whole mount confocal analyses.
Only cells in the S phase will incorporate BrdU ... | https://en.wikipedia.org/wiki/S_phase_index |
In chemistry , the Sabatier principle is a qualitative concept in heterogeneous catalysis named after the French chemist Paul Sabatier . It states that the interactions between the catalyst and the reactants should be "just right"; that is, neither too strong nor too weak. If the interaction is too weak, the molecule w... | https://en.wikipedia.org/wiki/Sabatier_principle |
The Sabatier reaction or Sabatier process produces methane and water from a reaction of hydrogen with carbon dioxide at elevated temperatures (optimally 300–400 °C) and pressures (perhaps 3 megapascals (440 psi; 30 bar) [ 1 ] ) in the presence of a nickel catalyst . It was discovered by the French chemists Paul Sabatie... | https://en.wikipedia.org/wiki/Sabatier_reaction |
Sabih Taher Darwish al-Masri is a Jordanian-Palestinian businessman. He is the founder and chairman of Arab Supply and Trading Company (Astra Group). He is also the chairman of Zara Investment Holding , Astra Industries, Paltel Corporation and Arab Bank , and a founder of the Palestine Securities Exchange (PSE). [ 1 ]... | https://en.wikipedia.org/wiki/Sabih_al-Masri |
Saccharibacteria , formerly known as TM7 , [ 1 ] is a major bacterial lineage. It was discovered through 16S rRNA sequencing . [ 2 ]
TM7x from the human oral cavity was cultivated and revealed that TM7x is an extremely small coccus (200-300 nm) and has a distinctive lifestyle not previously observed in human-associate... | https://en.wikipedia.org/wiki/Saccharibacteria |
Saccharification is a term in biochemistry for denoting any chemical change wherein a monosaccharide molecule remains intact after becoming unbound from another saccharide. [ 1 ] For example, when a carbohydrate is broken into its component sugar molecules by hydrolysis (e.g., sucrose being broken down into glucose and... | https://en.wikipedia.org/wiki/Saccharification |
A saccharimeter is an instrument for measuring the concentration of sugar solutions.
This is commonly achieved using a measurement of refractive index ( refractometer ) or the angle of rotation of polarization of optically active sugars ( polarimeter ).
Saccharimeters are used in food processing industries, brewing ,... | https://en.wikipedia.org/wiki/Saccharimeter |
In absolute geometry , the Saccheri–Legendre theorem states that the sum of the angles in a triangle is at most 180°. [ 1 ] Absolute geometry is the geometry obtained from assuming all the axioms that lead to Euclidean geometry with the exception of the axiom that is equivalent to the parallel postulate of Euclid. [ a ... | https://en.wikipedia.org/wiki/Saccheri–Legendre_theorem |
Sacituzumab govitecan , sold under the brand name Trodelvy by Gilead Sciences , is a Trop-2 -directed antibody and topoisomerase inhibitor drug conjugate used for the treatment of metastatic triple-negative breast cancer and metastatic urothelial cancer. [ 8 ] [ 10 ] [ 11 ] [ 12 ]
The most common side effects include ... | https://en.wikipedia.org/wiki/Sacituzumab_govitecan |
A sacrificial metal is a metal used as a sacrificial anode in cathodic protection that corrodes to prevent a primary metal from corrosion or rusting . [ 1 ] It may also be used for galvanization.
When two metals touch each other and water is present, electrolysis occurs. [ 2 ] One well known example is the reaction be... | https://en.wikipedia.org/wiki/Sacrificial_metal |
A sacrificial part is a part of a machine or product that is intentionally engineered to fail under excess mechanical stress , electrical stress , or other unexpected and dangerous situations. The sacrificial part is engineered to fail first, thus breaking the serial connection and protecting other parts of the system ... | https://en.wikipedia.org/wiki/Sacrificial_part |
The Saddam Line consisted of defensive fortifications constructed by Saddam Hussein 's Iraqi Army on Kuwait 's border with Saudi Arabia after Iraq had invaded and occupied Kuwait in August 1990.
The Western media presented fears that it would present a formidable obstacle to the liberation of Kuwait , consisting of "f... | https://en.wikipedia.org/wiki/Saddam_Line |
In safe-life design , products are intended to be removed from service at a specific design life .
Safe-life is particularly relevant to simple metal aircraft, where airframe components are subjected to alternating loads over the lifetime of the aircraft which makes them susceptible to metal fatigue . In certain areas... | https://en.wikipedia.org/wiki/Safe-life_design |
The Safe Water System ( SWS ) is a series of inexpensive technologies that can be applied as water quality interventions in developing countries . [ 1 ] It was developed in conjunction by the US Centers for Disease Control and Prevention and the Pan American Health Organization . As of 2014, SWS had been implemented in... | https://en.wikipedia.org/wiki/Safe_Water_System |
The Safe and Secure Innovation for Frontier Artificial Intelligence Models Act , or SB 1047 , was a failed [ 1 ] 2024 California bill intended to "mitigate the risk of catastrophic harms from AI models so advanced that they are not yet known to exist". [ 2 ] Specifically, the bill would have applied to models which cos... | https://en.wikipedia.org/wiki/Safe_and_Secure_Innovation_for_Frontier_Artificial_Intelligence_Models_Act |
The safe handling of carcinogens is the handling of cancer causing substances in a safe and responsible manner. Carcinogens are defined as 'a substance or agent that can cause cells to become cancerous by altering their genetic structure so that they multiply continuously and become malignant '. [ 1 ] The World Health ... | https://en.wikipedia.org/wiki/Safe_handling_of_carcinogens |
Safe household water storage is a critical component of a Household Water Treatment and Safe Storage (HWTS) system being promoted by the World Health Organization (WHO) worldwide in areas that do not have piped drinking water. In these areas, it is not uncommon for drinking water to be stored in a pot, jar, crock or ot... | https://en.wikipedia.org/wiki/Safe_household_water_storage |
For power semiconductor devices (such as BJT , MOSFET , thyristor or IGBT ), the safe operating area (SOA) is defined as the voltage and current conditions over which the device can be expected to operate without self-damage. [ 1 ]
SOA is usually presented in transistor datasheets as a graph with V CE (collector-emitt... | https://en.wikipedia.org/wiki/Safe_operating_area |
SafetyNET p is a standard for Ethernet -based fieldbus communication in automation technology . SafetyNET p is suitable as a drive bus due to its real-time behaviour , with cycle times of up to 62.5 μs. In accordance with the standard requirements from EN 61508 and EN 61511, it can be used in safety circuits up to and ... | https://en.wikipedia.org/wiki/SafetyNET_p |
Safety Science is a monthly peer-reviewed scientific journal published by Elsevier covering research on all aspects of human and industrial safety . [ 1 ] The editor-in-chief is Georgios Boustras ( European University Cyprus ),. [ 2 ] The journal was established in 1976 as the Journal of Occupational Accidents , with H... | https://en.wikipedia.org/wiki/Safety_Science |
Safety engineers focus on development and maintenance of the integrated management system. They act as a quality assurance and conformance specialist.
Health and safety engineers are responsible for developing and maintaining the safe work systems for employees and others.
The scope of a safety engineer is the develo... | https://en.wikipedia.org/wiki/Safety_engineer |
Safety in numbers is the hypothesis that, by being part of a large physical group or mass, an individual is less likely to be the victim of a mishap, accident , attack, or other bad event. Some related theories also argue (and can show statistically) [ citation needed ] that mass behaviour (by becoming more predictable... | https://en.wikipedia.org/wiki/Safety_in_numbers |
In functional safety a safety instrumented system ( SIS ) is an engineered set of hardware and software controls which provides a protection layer that shuts down a chemical, nuclear, electrical, or mechanical system, or part of it, if a hazardous condition is detected. [ 1 ]
An SIS performs a safety instrumented func... | https://en.wikipedia.org/wiki/Safety_instrumented_system |
A safety lamp is any of several types of lamp that provides illumination in places such as coal mines where the air may carry coal dust or a build-up of flammable gases, which may explode if ignited, possibly by an electric spark. Until the development of effective electric lamps in the early 1900s, miners used flame ... | https://en.wikipedia.org/wiki/Safety_lamp |
The safety life cycle is the series of phases from initiation and specifications of safety requirements, covering design and development of safety features in a safety-critical system , and ending in decommissioning of that system. This article uses software as the context but the safety life cycle applies to other are... | https://en.wikipedia.org/wiki/Safety_life_cycle |
Safety pharmacology is a branch of pharmacology specialising in detecting and investigating potential undesirable pharmacodynamic effects of new chemical entities (NCEs) on physiological functions in relation to exposure in the therapeutic range and above. [ 1 ]
Primary organ systems (so-called core battery systems) a... | https://en.wikipedia.org/wiki/Safety_pharmacology |
A safety sign is a sign designed to warn of hazards, indicate mandatory actions or required use of personal protective equipment , prohibit actions or objects, identify the location of firefighting or safety equipment , or marking of exit routes .
In addition to being encountered in industrial facilities; safety signs... | https://en.wikipedia.org/wiki/Safety_sign |
The safety testing of explosives involves the determination of various properties of the different energetic materials that are used in commercial, mining, and military applications. It is highly desirable to measure the conditions under which explosives can be set off for several reasons, including: safety in handling... | https://en.wikipedia.org/wiki/Safety_testing_of_explosives |
A safety valve is a valve that acts as a fail-safe . An example of safety valve is a pressure relief valve (PRV), which automatically releases a substance from a boiler , pressure vessel , or other system , when the pressure or temperature exceeds preset limits. Pilot-operated relief valves are a specialized type of pr... | https://en.wikipedia.org/wiki/Safety_valve |
The Saffman–Delbrück model describes a lipid membrane as a thin layer of viscous fluid , surrounded by a less viscous bulk liquid. This picture was originally proposed to determine the diffusion coefficient of membrane proteins, but has also been used to describe the dynamics of fluid domains within lipid membranes. T... | https://en.wikipedia.org/wiki/Saffman–Delbrück_model |
The Saffman–Taylor instability , also known as viscous fingering , is the formation of patterns in a morphologically unstable interface between two fluids in a porous medium or in a Hele-Shaw cell , described mathematically by Philip Saffman and G. I. Taylor in a paper of 1958. [ 1 ] [ 2 ] This situation is most often ... | https://en.wikipedia.org/wiki/Saffman–Taylor_instability |
Safranin ( Safranin O or basic red 2 ) is a biological stain used in histology and cytology . Safranin is used as a counterstain in some staining protocols, colouring cell nuclei red. This is the classic counterstain in both Gram stains and endospore staining . It can also be used for the detection of cartilage , [ 2 ... | https://en.wikipedia.org/wiki/Safranin |
Paint and other coatings that are on slanted or vertical surfaces tend to sag when first applied. The thickness of the coating as well as the composition and viscosity will affect the overall sagging and conversely the sag resistance. In order to find the sag resistance of a coating a simple test is used. A metal appl... | https://en.wikipedia.org/wiki/Sag_resistance_test |
SageMath (previously Sage or SAGE , "System for Algebra and Geometry Experimentation" [ 3 ] ) is a computer algebra system (CAS) with features covering many aspects of mathematics , including algebra , combinatorics , graph theory , group theory , differentiable manifolds , numerical analysis , number theory , calculus... | https://en.wikipedia.org/wiki/SageMath |
SageManifolds (following the styling of SageMath) is an extension fully integrated into SageMath , to be used as a package for differential geometry and tensor calculus . The official page for the project is sagemanifolds.obspm.fr . It can be used on CoCalc .
SageManifolds deals with differentiable manifolds of arbitr... | https://en.wikipedia.org/wiki/Sage_Manifolds |
In geometry , the sagitta (sometimes abbreviated as sag [ 1 ] ) of a circular arc is the distance from the midpoint of the arc to the midpoint of its chord . [ 2 ] It is used extensively in architecture when calculating the arc necessary to span a certain height and distance and also in optics where it is used to find ... | https://en.wikipedia.org/wiki/Sagitta_(geometry) |
The Sagnac effect , also called Sagnac interference , named after French physicist Georges Sagnac , is a phenomenon encountered in interferometry that is elicited by rotation . The Sagnac effect manifests itself in a setup called a ring interferometer or Sagnac interferometer . A beam of light is split and the two beam... | https://en.wikipedia.org/wiki/Sagnac_effect |
The Sahara Forest Project aims to provide fresh water, food and renewable energy in hot, arid regions as well as re-vegetating areas of uninhabited desert . [ 1 ] [ 2 ] The founding team was composed of Seawater Greenhouse Ltd, Exploration Architecture, Max Fordham Consulting Engineers and the Bellona Foundation .
The... | https://en.wikipedia.org/wiki/Sahara_Forest_Project |
The Sahara Sea was the name of a hypothetical macro-engineering project which proposed flooding endorheic basins in the Sahara with waters from the Atlantic Ocean or Mediterranean Sea . The goal of this unrealised project was to create an inland sea that would cover the substantial areas of the Sahara which lie below s... | https://en.wikipedia.org/wiki/Sahara_Sea |
Sahati Suharto (10 March 1932 – 14 April 2020) was an Indonesian chemist and academic administrator from the University of Indonesia who became the dean of the university's Faculty of Math and Natural Sciences from 1984 to 1988.
Born on 10 March 1932 in Jakarta, [ 1 ] Sahati received her bachelor's degree in chemistry... | https://en.wikipedia.org/wiki/Sahati_Suharto |
SahysMod is a computer program for the prediction of the salinity of soil moisture, groundwater and drainage water, the depth of the watertable , and the drain discharge in irrigated agricultural lands, using different hydrogeologic and aquifer conditions, varying water management options, including the use of ground w... | https://en.wikipedia.org/wiki/SahysMod |
Saiful Islam (born 14 August 1963) is a British chemist and professor of materials modelling at the Department of Materials, University of Oxford . Saiful is a Fellow of the Royal Society of Chemistry (FRSC), and received the Royal Society 's Wolfson Research Merit Award and Hughes Medal , and the American Chemical Soc... | https://en.wikipedia.org/wiki/Saiful_Islam_(chemist) |
SailTimer is a technology for sailboat navigation, which calculates optimal tacking angles, distances and times.
Seafarers have had a dilemma for as long as sailboats could use lift to sail upwind. [ 1 ] [ 2 ] Should you head off the wind more, to get more speed (but at a longer distance)? Or should you sail upwind m... | https://en.wikipedia.org/wiki/SailTimer |
The sail area-displacement ratio ( SA/D ) is a calculation used to express how much sail a boat carries relative to its weight . [ 1 ]
In the first equation, the denominator in pounds is divided by 64 to convert it to cubic feet (because 1 cubic foot of salt water weights 64 pounds). The denominator is taken to the 2/... | https://en.wikipedia.org/wiki/Sail_area-displacement_ratio |
Sailfish OS is a paid Linux-based operating system based on free software , and open source projects such as Mer as well as including a closed source UI . The project is being developed by the Finnish company Jolla .
The OS first shipped with the original Jolla Phone in 2013; while its sale stopped in 2016, it was su... | https://en.wikipedia.org/wiki/Sailfish_OS |
The Saint-Petersburg International Mercantile Exchange ( SPIMEX ) is a Russian commodity exchange [ ru ] incorporated in 2008. It has offices in Moscow , Saint Petersburg and Irkutsk .
SPIMEX offers a wide range of products in exchange-traded refined products , crude oil , natural gas , coal , timber and construction ... | https://en.wikipedia.org/wiki/Saint-Petersburg_International_Mercantile_Exchange |
In the mathematical theory of elasticity , Saint-Venant's compatibility condition defines the relationship between the strain ε {\displaystyle \varepsilon } and a displacement field u {\displaystyle \ u} by
where 1 ≤ i , j ≤ 3 {\displaystyle 1\leq i,j\leq 3} . Barré de Saint-Venant derived the compatibility condition ... | https://en.wikipedia.org/wiki/Saint-Venant's_compatibility_condition |
In solid mechanics , it is common to analyze the properties of beams with constant cross section. Saint-Venant's theorem states that the simply connected cross section with maximal torsional rigidity is a circle. [ 1 ] It is named after the French mathematician Adhémar Jean Claude Barré de Saint-Venant .
Given a simpl... | https://en.wikipedia.org/wiki/Saint-Venant's_theorem |
The Sakaguchi test is a chemical test used to detect presence of arginine in proteins. It is named after the Japanese food scientist and organic chemist, Shoyo Sakaguchi (1900–1995) who described the test in 1925. [ 1 ] The Sakaguchi reagent used in the test consists of 1-Naphthol and a drop of sodium hypobromite . The... | https://en.wikipedia.org/wiki/Sakaguchi_test |
In physics , the Sakuma–Hattori equation is a mathematical model for predicting the amount of thermal radiation , radiometric flux or radiometric power emitted from a perfect blackbody or received by a thermal radiation detector.
The Sakuma–Hattori equation was first proposed by Fumihiro Sakuma, Akira Ono and Susumu H... | https://en.wikipedia.org/wiki/Sakuma–Hattori_equation |
Sakura Editor is a free and open-source Japanese text editor for Microsoft Windows .
Sakura Editor was started by Take ( たけ ), the original author, around 1998 and the source code was made public around 2000. Development was carried out on SourceForge until May 2018, then it was moved to GitHub in June of the same yea... | https://en.wikipedia.org/wiki/Sakura_(text_editor) |
The Sakurai reaction (also known as the Hosomi–Sakurai reaction ) is the chemical reaction of carbon electrophiles (such as a ketone shown here) with allyltrimethylsilane catalyzed by strong Lewis acids . [ 1 ] [ 2 ] [ 3 ] The reaction achieves results similar to the addition of an allyl Grignard reagent to the carbony... | https://en.wikipedia.org/wiki/Sakurai_reaction |
Sala Nanyanzi Senkayi is an African environmental scientist at the United States Environmental Protection Agency . She was the first Ugandan -born woman to win the Presidential Early Career Award for Scientists and Engineers .
Senkayi is the daughter of Abu Senkayi and Sunajeh Senkayi. Her family are from Butambala Di... | https://en.wikipedia.org/wiki/Sala_Senkayi |
A salad spinner , also known as a salad tosser , is a kitchen tool used to wash and remove excess water from salad greens . It uses centrifugal force to separate the water from the leaves, enabling salad dressing to stick to the leaves without dilution.
Salad spinners are usually made from plastic and include an outer... | https://en.wikipedia.org/wiki/Salad_spinner |
A salamander (or deadman's foot, furnace sow or furnace bear) in metallurgy means all liquid and solidified
materials in the hearth of a blast furnace below the tap hole.
Salamander tapping is removing the remaining hot metal and slag, while still in a molten state, from the blast furnace to allow, for example, a safe... | https://en.wikipedia.org/wiki/Salamander_(metallurgy) |
Salbutamol , also known as albuterol and sold under the brand name Ventolin among others, [ 1 ] is a medication that opens up the medium and large airways in the lungs . [ 7 ] It is a short-acting β 2 adrenergic receptor agonist that causes relaxation of airway smooth muscle . [ 7 ] It is used to treat asthma , includi... | https://en.wikipedia.org/wiki/Salbutamol |
Salen refers to a tetradentate C 2 -symmetric ligand synthesized from salicylaldehyde ( sal ) and ethylenediamine ( en ). It may also refer to a class of compounds, which are structurally related to the classical salen ligand, primarily bis- Schiff bases . Salen ligands are notable for coordinating a wide range of diff... | https://en.wikipedia.org/wiki/Salen_ligand |
Salesforce management systems (also sales force automation systems ( SFA )) are information systems used in customer relationship management (CRM) marketing and management that help automate some sales and sales force management functions. They are often combined with a marketing information system , in which case the... | https://en.wikipedia.org/wiki/Sales_force_management_system |
Salicylaldoxime is an organic compound described by the formula C 6 H 4 CH=NOH-2-OH. It is the oxime of salicylaldehyde . This crystalline, colorless solid is a chelator and sometimes used in the analysis of samples containing transition metal ions , with which it often forms brightly coloured coordination complexes ... | https://en.wikipedia.org/wiki/Salicylaldoxime |
Salicylate testing is a category of drug testing that is focused on detecting salicylates such as acetysalicylic acid for either biochemical or medical purposes.
Salicylates can be identified by GC/MS , proton NMR , and IR . [ citation needed ]
One of the first in vitro tests for aspirin was through the Trinder react... | https://en.wikipedia.org/wiki/Salicylate_testing |
Saline (also known as saline solution ) is a mixture of sodium chloride (salt) and water . [ 1 ] It has a number of uses in medicine including cleaning wounds, removal and storage of contact lenses , and help with dry eyes . [ 2 ] By injection into a vein , it is used to treat hypovolemia such as that from gastroenteri... | https://en.wikipedia.org/wiki/Saline_(medicine) |
Salinity ( / s ə ˈ l ɪ n ɪ t i / ) is the saltiness or amount of salt dissolved in a body of water , called saline water (see also soil salinity ). It is usually measured in g/L or g/kg (grams of salt per liter/kilogram of water; the latter is dimensionless and equal to ‰ ).
Salinity is an important factor in determin... | https://en.wikipedia.org/wiki/Salinity |
A salinometer is a device designed to measure the salinity , or dissolved salt content, of a solution .
Since the salinity affects both the electrical conductivity and the specific gravity of a solution, a salinometer often consist of an ec meter or hydrometer and some means of converting those readings to a salinity ... | https://en.wikipedia.org/wiki/Salinometer |
The salinosporamides are a group of closely related chemical compounds isolated from marine bacteria in the genus Salinispora . [ 1 ] [ 2 ] [ 3 ] [ 4 ] They possess a densely functionalized γ-lactam-β-lactone bicyclic core .
Salinosporamide A has attracted interest for its potential use in treating various types of ca... | https://en.wikipedia.org/wiki/Salinosporamide |
Salinosporamide A ( Marizomib ) is a potent proteasome inhibitor being studied as a potential anticancer agent . It entered phase I human clinical trials for the treatment of multiple myeloma , only three years after its discovery in 2003. [ 1 ] [ 2 ] This marine natural product is produced by the obligate marine bact... | https://en.wikipedia.org/wiki/Salinosporamide_A |
Saliva (commonly referred to as spit or drool ) is an extracellular fluid produced and secreted by salivary glands in the mouth . In humans , saliva is around 99% water , plus electrolytes , mucus , white blood cells , epithelial cells (from which DNA can be extracted), enzymes (such as lingual lipase and amylase ), an... | https://en.wikipedia.org/wiki/Saliva |
The salivary microbiome consists of the nonpathogenic , commensal bacteria present in the healthy human salivary glands . It differs from the oral microbiome which is located in the oral cavity. Oral microorganisms tend to adhere to teeth. [ 1 ] The oral microbiome possesses its own characteristic microorganisms found ... | https://en.wikipedia.org/wiki/Salivary_microbiome |
Sally Anne Brooker MNZM is a New Zealand inorganic chemist . She has been a full professor at the University of Otago since 2006. [ 1 ] [ 2 ] [ 3 ]
Brooker was educated at Hawarden Area School in North Canterbury from 1970 to 1982, [ 4 ] and was dux of the school in her final year there. [ 5 ] She went on to study che... | https://en.wikipedia.org/wiki/Sally_Brooker |
Sally hashim Shlaer (December 3, 1938 – November 12, 1998) was an American mathematician , software engineer and software methodologist , [ 1 ] known as co-developer of the 1980s Shlaer–Mellor method for software development.
Born in Cleveland, Ohio , Shlaer received a BS in Mathematics in 1960 from Stanford Universit... | https://en.wikipedia.org/wiki/Sally_Shlaer |
A salmon run is an annual fish migration event where many salmonid species, which are typically hatched in fresh water and live most of their adult life downstream in the ocean , swim back against the stream to the upper reaches of rivers to spawn on the gravel beds of small creeks . After spawning, most Atlantic salmo... | https://en.wikipedia.org/wiki/Salmon_run |
Phenyl salicylate , or salol , is the organic compound with the formula C 6 H 5 O 2 C 6 H 4 OH. It is a white solid. It is occasionally used in sunscreens and as an antiseptic. [ 3 ]
The title compound was synthesized first in 1883 by the Polish chemist and doctor Marceli Nencki (who didn't publish his findings) and ... | https://en.wikipedia.org/wiki/Salol_reaction |
In anatomical contexts, salpinx is used to refer to a type of tube. Per Terminologia Anatomica , the Latin term "tuba" is usually used to describe most tubes (after the Roman tuba , not the modern tuba ), but the term "salpinges" and its adjectival derivatives are still sometimes used to describe the following two "tub... | https://en.wikipedia.org/wiki/Salpinx_in_anatomy |
A salsabil (or salasabil [ 1 ] ), also known as a shadirwan , [ 2 ] is a type of fountain which maximizes the surface area of the water. It is used for evaporative cooling of buildings, cooling and aeration of drinking water, and ornament [ 3 ] [ 4 ] (it has also been used to prevent eavesdropping [ 5 ] ). The water ma... | https://en.wikipedia.org/wiki/Salsabil_(fountain) |
In pathology , salt-and-pepper chromatin , also salt-and-pepper nuclei and stippled chromatin , refers to cell nuclei that demonstrate granular chromatin (on light microscopy ). [ 1 ]
Salt-and-pepper chromatin is typically seen in endocrine tumours such as medullary thyroid carcinoma , neuroendocrine tumours [ 2 ] and... | https://en.wikipedia.org/wiki/Salt-and-pepper_chromatin |
Salt-concrete (or salzbeton ) is a building material that is used to reduce the water inflow in mining shafts in salt mines. It is composed of 16% cement , 39% halite , 16% limestone powder, 14% water and 15% sand. [ 1 ]
Salt-concrete was used for the first time in 1984 in the potash mine in Rocanville in Canada . [ 2... | https://en.wikipedia.org/wiki/Salt-concrete |
Salt-effect distillation is a method of extractive distillation in which a salt is dissolved in the mixture of liquids to be distilled. The salt acts as a separating agent by raising the relative volatility of the mixture and by breaking any azeotropes that may otherwise form. The technique is first attested in writin... | https://en.wikipedia.org/wiki/Salt-effect_distillation |
In chemistry , salt-free reduction describes methodology for reduction of metal halides by electron-rich trimethylsilyl reagents. Traditional reductions of metal halides are accomplished with alkali metals, a process that cogenerates alkali metal salts. Using the salt-free reduction, the reduction of metal halides is... | https://en.wikipedia.org/wiki/Salt-free_reduction |
SaltMod is computer program for the prediction of the salinity of soil moisture , groundwater and drainage water, the depth of the watertable , and the drain discharge (hydrology) in irrigated agricultural lands, using different (geo)hydrologic conditions, varying water management options, including the use of ground w... | https://en.wikipedia.org/wiki/SaltMod |
In chemistry , a salt or ionic compound is a chemical compound consisting of an assembly of positively charged ions ( cations ) and negatively charged ions ( anions ), [ 1 ] which results in a compound with no net electric charge (electrically neutral). The constituent ions are held together by electrostatic forces ter... | https://en.wikipedia.org/wiki/Salt_(chemistry) |
The Salt River Project ( SRP ) encompasses two separate entities: the Salt River Project Agricultural Improvement and Power District , an agency of the state of Arizona that serves as an electrical utility for the Phoenix metropolitan area , and the Salt River Valley Water Users' Association , a utility cooperative tha... | https://en.wikipedia.org/wiki/Salt_River_Project |
The salt and ice challenge is an Internet challenge in which participants pour salt on their bodies, usually on the arm, and ice is then placed on the salt. [ 1 ] This causes a "burning" sensation similar to frostbite , and participants vie to withstand the pain for the longest time. The challenge can be recorded and p... | https://en.wikipedia.org/wiki/Salt_and_ice_challenge |
In chemistry , a salt bridge is a combination of two non-covalent interactions : hydrogen bonding and ionic bonding (Figure 1). Ion pairing is one of the most important noncovalent forces in chemistry, in biological systems, in different materials and in many applications such as ion pair chromatography . It is a most ... | https://en.wikipedia.org/wiki/Salt_bridge_(protein_and_supramolecular) |
A salt lake or saline lake is a landlocked body of water that has a concentration of salts (typically sodium chloride ) and other dissolved minerals significantly higher than most lakes (often defined as at least three grams of salt per liter). [ 1 ] In some cases, salt lakes have a higher concentration of salt than se... | https://en.wikipedia.org/wiki/Salt_lake |
High salt marsh dieback , or salt marsh browning, is the primary force in salt marsh degradation in the high marsh. The general effect is that the plants in the marsh die off and brown, leaving dead organic matter , and ultimately open sediment . Without strong plant roots holding the sediment, these open areas of lan... | https://en.wikipedia.org/wiki/Salt_marsh_dieback |
A salt metathesis reaction is a chemical process involving the exchange of bonds between two reacting chemical species which results in the creation of products with similar or identical bonding affiliations. [ 1 ] This reaction is represented by the general scheme:
In older literature, the term double decomposition i... | https://en.wikipedia.org/wiki/Salt_metathesis_reaction |
Natural salt pans or salt flats are flat expanses of ground covered with salt and other minerals , usually shining white under the sun . They are found in deserts and are natural formations (unlike salt evaporation ponds , which are artificial).
A salt pan forms by evaporation of a water pool, such as a lake or pond ... | https://en.wikipedia.org/wiki/Salt_pan_(geology) |
The salt spray test (or salt fog test ) is a standardized and popular corrosion test method, used to check corrosion resistance of materials and surface coatings . Usually, the materials to be tested are metallic (although stone, ceramics, and polymers may also be tested) and finished with a surface coating which is in... | https://en.wikipedia.org/wiki/Salt_spray_test |
Salt tectonics , or halokinesis , or halotectonics , is concerned with the geometries and processes associated with the presence of significant thicknesses of evaporites containing rock salt within a stratigraphic sequence of rocks. This is due both to the low density of salt, which does not increase with burial, and i... | https://en.wikipedia.org/wiki/Salt_tectonics |
Salt tide is a phenomenon in which the lower course of a river , with its low altitude with respect to the sea level , becomes salty when the discharge of the river is low during dry season, usually worsened by the result of astronomical high tide.
The lower course Xijiang ( West River ) in Guangdong , China was perio... | https://en.wikipedia.org/wiki/Salt_tide |
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