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References
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Valence Definition in Chemistry - ThoughtCoJan 24, 2019 · The concept of valence was developed in the second half of the 19th century to explain chemical bonding and molecular structure.
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Valence - (Intro to Chemistry) - Vocab, Definition, ExplanationsValence is a fundamental concept in chemistry that describes the combining capacity of an atom. It refers to the number of electrons in the outermost shell ...
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Valence – Knowledge and References - Taylor & FrancisValence is an atom's chemical combining power, determined by its outermost electrons, and the number of electrons it can lose, gain, or share.
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Who Invented The Concept Of Valence In Chemistry?Feb 7, 2024 · The concept was proposed in 1852 by Sir Edward Frankland, who sought to explain why atoms and molecules combine in certain ways.
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Exploring the Concept of Valence and the Nature of Science via ...Jul 29, 2024 · A fundamental concept in chemistry, valence in the early and mid-20th century was primarily defined as the “combining capacity” of atoms.
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"Valence and Molecular Structure," Lectures 1 and 2. Video ClipHydrogen and fluorine, sodium and chlorine, are said to be univalent, to have valence one. Water, oxygen is bivalent; it can form two chemical bonds. Nitrogen ...<|control11|><|separator|>
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Valence (chemistry) - chemeurope.comIn chemistry, valence, also known as valency or valency number, is a measure of the number of chemical bonds formed by the atoms of a given element.<|control11|><|separator|>
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4.4: Valence - Chemistry LibreTextsJun 19, 2023 · Variable valence must involve atoms in which some valence sites are more readily used than others. In the case of the F compounds of Cl (ClF, ...
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Variable Valency - BYJU'SFor example, copper, tin, iron and mercury exhibit variable valency. Copper combines with oxygen to form cuprous oxide (Cu2O) and cupric oxide (CuO).
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Variable Valency Explained: Simple Guide for Students - VedantuRating 4.2 (373,000) Examples include: Iron (Fe): Shows valencies of +2 (ferrous) and +3 (ferric). Copper (Cu): Has valencies of +1 (cuprous) and +2 (cupric). Tin (Sn): Exhibits ...
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Variable valency - everything you need to know - UnacademyElements with variable valency include iron, mercury, and copper. Transition elements exhibit various degrees of valency.
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Bond Valence - an overview | ScienceDirect TopicsThe valence of an atom is a measure of its bonding power, which it shares with the other atoms bonded to it, and is usually treated as equivalent to its formal ...
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Toward a comprehensive definition of valence - IUPACThe semantics of valence in chemistry is the ability of an atom to bond. In English, valence appears in several different quantitative connotations, ...
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Edward Frankland - Linda Hall LibraryJan 18, 2017 · Frankland pointed out that every element tends to combine with a certain number of atoms of other elements, and this number, called the valence, ...Missing: definition | Show results with:definition
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Valence electrons (video) - Khan AcademyDec 23, 2012 · Valence electrons are the electrons in the outermost shell, or energy level, of an atom. For example, oxygen has six valence electrons.
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15.4: Lewis Structures: Counting Valence ElectronsMar 24, 2021 · To count valence electrons, add the valence electrons from each atom, indicated by their position in the periodic table. For polyatomic ions, ...
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19.1: Properties of Transition Metals and Their CompoundsSep 12, 2022 · Transition metals are elements with partially filled d orbitals, located in the d-block of the periodic table.
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Transition Metal Ion Formation - CK12-FoundationJun 20, 2016 · However, transition metals have variable valency, with some of them having up to three valence electrons. Groups 9 and 10, for instance, can ...Flexbooks 2.0 > · Lesson · Transition Metal Ions
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Covalency - an overview | ScienceDirect TopicsCovalency is the intrinsic bonding characteristic between atoms, and it is a condition intermediate between metallic and ionic bonding.
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Coordinate (Dative Covalent) Bonding - Chemistry LibreTextsJan 29, 2023 · A coordinate bond (also called a dative covalent bond) is a covalent bond (a shared pair of electrons) in which both electrons come from the same atom.
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We (Still!) Need to Talk About Valence: Contemporary Issues and ...Sep 2, 2023 · Valence is central to the experience of emotion. However, to the detriment of affective science, it is often ill-defined and poorly ...
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The Role of Emotional Valence for the Processing of Facial and ...Valence refers to the pleasantness or unpleasantness of an emotional stimulus. Nearly all events and experiences, such as faces, sounds, music, art, pictures, ...Introduction · Review 1: Valence Effects in... · Review 3: Studies on Valence...
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tridimensional theory of feeling - APA Dictionary of Psychologythe theory that feelings can vary along three dimensions: pleasantness–unpleasantness (hedonic quality), excitement–calmness, and arousal–relaxation.Missing: 1874 valence
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Brain representations of affective valence and intensity in ... - PNASOverall, the current study provides insights into the brain representations of affective valence and intensity across pleasure and pain, promoting the ...Missing: modern | Show results with:modern
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A circumplex model of affect. - APA PsycNetA spatial model in which affective concepts fall in a circle in the following order: pleasure (0), excitement (45), arousal (90), distress (135), displeasure ( ...Missing: valence | Show results with:valence
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Russell's (1980) Circumplex Models – Psychology of Human EmotionRussell's circumplex model uses a circular diagram mapping emotions based on valence (pleasantness/unpleasantness) and activation (high/low arousal) dimensions.
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Levels of Valence - PMC - PubMed Central - NIHValence has two levels: micro-valence, individual appraisal outcomes, and macro-valence, an integration of various inputs. Micro-valences can be mixed, while ...
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Action versus valence in decision making - ScienceDirect.comAction and valence are coupled, influencing choices. Action is instructed by valence, and action dominates valence in the striatum and dopaminergic midbrain.
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(PDF) Measuring Emotion: Self-Reports vs. Physiological IndicatorsAug 7, 2025 · Unlike self-reports, physiological measures are not subject to social desirability bias, and they can capture aspects of emotional response ...
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Measuring Emotion: Self-Reports vs. Physiological IndicatorsApr 18, 2015 · Unlike self-reports, physiological measures are not subject to social desirability bias, and they can capture aspects of emotional response ...
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Predicting affective valence using cortical hemodynamic signalsMar 29, 2018 · Ascribing affective valence to stimuli or mental states is a fundamental property of human experiences. Recent neuroimaging meta-analyses ...
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Band Theory for Solids - HyperPhysicsIn insulators the electrons in the valence band are separated by a large gap from the conduction band, in conductors like metals the valence band overlaps the ...
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Band Theory of Solids – University Physics Volume 3The highest energy band that is filled is known as a valence band. The next available band in the energy structure is known as a conduction band. In a conductor ...Missing: definition | Show results with:definition
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[PDF] Energy bands - Rutgers PhysicsOn the contrary if the valence band is not completely filled the solid is a metal. In a metal there are empty states available above the Fermi level like in a ...
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[PDF] Module α3 Understanding Electronic Conductivity: ConductivThe valence band is thus defined as the highest energy band with occupied orbitals. ... Kittel, Introduction to Solid State Physics, John Wiley & Sons, Inc., New ...<|control11|><|separator|>
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Doped Semiconductors - HyperPhysicsIn p-type material, extra holes in the band gap allow excitation of valence band electrons, leaving mobile holes in the valence band. Click on either case ...
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[PDF] δ δ δ - bingwebHis paper was published in 1928 [F. Bloch, Zeitschrift für Physik 52, 555 (1928)]. There are many standard textbooks3-10 which discuss the properties of the ...
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The Feynman Lectures on Physics Vol. III Ch. 14: SemiconductorsPerhaps the most important application of semiconductors is in the transistor. The transistor consists of two semiconductor junctions very close together. Its ...
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Comparateur de territoires − Commune de Valence (26362) - InseePopulation, Commune : Valence (26362). Population en 2022, 64 288. Densité de la population (nombre d'habitants au km²) en 2022, 1 752,2. Superficie en 2022, en ...
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Valence | History, Geography, & Points of Interest | BritannicaValence probably became a bishopric in the 4th century and was ruled by its bishops until Louis XI in 1450 persuaded them to give up their temporal power in ...Missing: medieval | Show results with:medieval
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5 Fascinating Roman Sites in France - France TodayNov 1, 2016 · ... Valence, capital of the Drôme department. Known in Roman times as Valentia Julia, the city swapped hands many times through the ages ...
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Diocese of Valence - Catholic Encyclopedia - New AdventCouncils were held at Valence in: 374, at which measures were taken for ecclesiastical discipline; 530, against Pelagianism; 585, King Gontran's donations to ...Missing: Priscillianism | Show results with:Priscillianism
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The famous nougat of Montelimar France - The Good Life FranceWith typical French flair, the locals took the original ingredients and created something uniquely French by adding eggs, their famous almonds and local honey.
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Valence (Confolens, Charente, France) - City PopulationValence. 190 Population [2022] – Estimate.
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Vallance Name Meaning and Vallance Family History at FamilySearchEnglish and Scottish: of Norman origin, a habitational name from Valence in Drôme, France, named with Latin valentia 'strength, capacity'.
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Valencia Population 2025 - World Population ReviewThe population as of 2015 was estimated to be 790,201 residents. This reflects a decrease from 2010, when the population exceeded 800,000, according to the ...
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Valencia - EurocitiesValencia is the third-largest city in Spain, behind Madrid and Barcelona, and one of the most dynamic in the country thanks to the entrepreneurial spirit and ...
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Meaning, origin and history of the place name ValenceMeaning & History ... French form of Valencia. Related Names. Family Tree·Details. Rootvalens.
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History of the city of ValenciaLearn the history of Valencia since its founding in 138 B.C. by the Romans. Over 2000+ years, it has become an interesting melting pot of cultures.Missing: date | Show results with:date
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The foundation of ValenciaOct 27, 2023 · The Romans founded Valencia in 138 BCE, we all agree on that. But who were the first inhabitants of this new town?Missing: date | Show results with:date
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[PDF] Valencia - Comunitat ValencianaThe former bed of the river Turia, converted into a park, has turned out to be the backbone of the city, which most of the museums and cultural institutions ...
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9 Fantastic Things To Do In Valencia, Spain - Wild About TravelJul 10, 2024 · The invasion by the Moors: Valencia surrendered to the Moors's invasion in 714 AD. The Christian reconquest: it was King James I of Aragon, with ...Missing: conquered | Show results with:conquered
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Medieval Valencia, the Valencian Golden Age - Fascinating SpainJan 25, 2021 · Medieval Valencia's Golden Age saw a new society, growth, a major textile industry, and became a wealthy, populous city with a municipal bank.
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Architecture of Valencia, SpainMar 6, 2021 · Valencia was later retaken by the Aragonese King James I in 1238 CE. The Spanish Kingdom of Aragon built many important structures within the ...
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Over 2000 Years of History in Valencia in ChaptersBy the end of the 15th century Valencia entered its Golden Age of prosperity when it was one of the most populous, dynamic, rich and cultural cities of Europe.
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[PDF] Valencia: The Path to Mediterranean Prosperity - ForbesValencia is experiencing a remarkable transformation from a tourism-focused region to a major economic & industrial hub. The government has successfully ...
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23 Interesting & Fun Facts About Valencia - Traveler's UniverseDid you know Valencia is Spain's orange capital, shipping millions of citrus fruits worldwide? It's also the birthplace of paella, Spain's most famous dish.
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Valencia Fallas festivity - UNESCO Intangible Cultural HeritageThe main feature of the Fallas Festivity, a tradition of communities in Valencia and its diaspora celebrating the coming of spring, is the giant falla.Missing: economy citrus exports
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The Inscription of the Valencia Fallas Festivity on the UNESCO ...The Valencia Fallas festivity was inscribed on the UNESCO Representative List of Intangible Cultural Heritage of Humanity on the 30 November 2016.Missing: economy citrus
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Valencian: The Linguistic Bridge between Catalan and Spanish |Jul 26, 2023 · Despite these differences, the Valencian and Catalan languages are generally considered to be two variants of the same language. However, in the ...
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Languages Spoken in Spain: Learning Valenciano - Dreams AbroadDec 17, 2019 · Valenciano as “the variety of Catalan spoken in the former Kingdom of Valencia and is commonly felt as its proper language.”
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History of Sutton Valence Castle - English HeritageThe village of Sutton, or 'south town', became known as Sutton Valence. William's son, Aymer de Valence, inherited the castle in 1307 and stayed here in June ...
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Tracing the History of Valence HouseThe earliest reference to the site dates from 1269, when its lease was transferred from one owner to another.
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William and Aymer de Valence - Westminster AbbeyValence near Lusignan in France was probably his birthplace. In 1247 William and two of his brothers, Guy and Aymer, and his sister Alice came to England at ...Missing: Somerset | Show results with:Somerset
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Valence Surname Origin, Meaning & Last Name History - ForebearsValence Surname Definition: “from Valence, Normandy. William and Richard de Valence, and the fief of Valence, occur in 1180-95 Alan de Valence was a Baron ...
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Last name VALENCE: origin and meaning - GeneanetMost common municipalities for the surname VALENCE: Vaudémont, Meurthe-et-Moselle, France. (2,150 individuals). Paris, Paris, France. (1,250 individuals).
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Valence Family History - Ancestry.comThe Valence family name was found in the USA, the UK, Canada, and Scotland between 1840 and 1920. The most Valence families were found in USA in 1920. In 1840 ...
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Remembering the 1998 Gold medalists - All BlacksJul 19, 2022 · A sevens specialist, Amasio Valence was born in Fiji and first played for the All Blacks Sevens at the 1998 Commonwealth Games. He went on to ...
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Amasio Valence Player Profile & Stats - Rugby DatabaseFull name: Amasio Valence. Born: Nadi. Country of Birth: Fiji the Fiji Islands. Birthday: 12th May 1979. Age: 46. First Game: New Zealand Colts v England Under ...
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David Valence president of the Infrastructure Orientation CouncilFeb 3, 2021 · David Valence, (radical) mayor of Saint-Dié-des-Vosges and president in charge of transport for the Grand-Est region, has been appointed ...
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David Valence Radical Party Chairman Parliamentary Editorial ...David Valence, of the Radical Party, chairman of the parliamentary committee of inquiry (right), and Hubert Wulfranc, of the Communist Party, rapporteur of ...
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Maurice Valency, 93, Theatrical Master, Dies - The New York TimesSep 29, 1996 · Maurice Valency, playwright, author, critic and professor of drama, an erudite man of the theater best known for his adaptations of award-winning plays.
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Maurice Valency papers, 1945-1963 - Columbia University Libraries ...Maurice Valency (1903-1996) was an American playwright, critic, author, and translator. Valency was born March 22, 1903 in New York City and was educated at ...
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Valency in the Romance Languages### Summary of Valency in Romance Languages
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Valency - Brill Reference WorksValency is the potential of a lexeme (a verb, noun, or adjective) to structure its syntactic environment by defining the number and the form of complements ...Missing: valence | Show results with:valence
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What is a Valency - Glossary of Linguistic Terms | - SIL GlobalExamples: Here are some examples of possible verb classes based on valency: Verb class. # of arguments. Example (English). Univalent, agentive. 1 agent. dance.
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[PDF] 80. Valency-changing word-formationThe major valency-increasing operations are causative and applicative: causative adds a new subject, while applicative adds an object. Valency-decreasing ...Missing: valence | Show results with:valence
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[PDF] Valency-Augmented Dependency Parsing - ACL AnthologyWe present a complete, automated, and effi- cient approach for utilizing valency analysis in making dependency parsing decisions. It in-.
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Enhancing Czech Parsing with Verb Valency Frames - SpringerLinkIn this paper an exploitation of the verb valency lexicons for the Czech parsing system Syntis presented and an effective implementation is described that ...
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Section references - Immunobiology - NCBI Bookshelf**Summary of Valence/Valency in Antigen-Antibody Interactions (from Immunobiology, 5th ed., NCBI Bookshelf)**
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Valence - Definition and Examples - Biology Online DictionaryFeb 24, 2022 · noun, plural: valences (biology, immunology) The relative capability of a substance (eg antibody) to act upon, react, or bind with a biological substrate.
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The Precipitin Reaction and Antibody Valence Studied with the Aid ...Landsteiner, K., “The Specificity of Serological Reactions” (Harvard Univ. Press; revised edit., 1945). Boyd, W. C., “Fundamentals of Immunology ...Missing: historical | Show results with:historical
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Role of Multivalency and Antigenic Threshold in Generating ...Here, we discuss the underlying mechanisms that may be associated with the induction of protective immunity by long-lived plasma cells.
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Structure, Function, and Therapeutic Use of IgM Antibodies - PMCAlthough the antigen binding affinities of natural IgM antibodies are typically lower than IgG, their polyvalency allows for high avidity binding and efficient ...
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PPSV23 Vaccine VIS - CDCPPSV23 helps protect against 23 types of bacteria that cause pneumococcal disease. PPSV23 is recommended as an option for some children and adolescents.