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Para-cycling classification
H2 is a para-cycling classification. The Union Cycliste Internationale recommends this be coded as MH2 or WH2. Union Cycliste Internationale (UCI) defines
H2_(classification)
Topics referred to by the same term
route H2 ATC code H02 Corticosteroids for systemic use, a subgroup of the Anatomical Therapeutic Chemical Classification System British NVC community H2, a
H2
Paris. Six riders competed in the event. The H2 classification is for hand-cyclists. Source: "Men's H2 Individual Time Trial results" (PDF). Paralympics
Cycling at the 2024 Summer Paralympics – Men's road time trial H2
Cycling_at_the_2024_Summer_Paralympics_–_Men's_road_time_trial_H2
Class of medications
H2 antagonists, sometimes referred to as H2RAs and also called H2 blockers, are a class of medications that block the action of histamine at the histamine
H2_receptor_antagonist
Film by Rob Zombie
Halloween II (also known as simply H2) is a 2009 American slasher film produced, written, and directed by Rob Zombie. It is the 10th installment in the
Halloween_II_(2009_film)
Industrial production of molecular hydrogen
molecular hydrogen (H2). In the water-gas shift reaction, the carbon monoxide reacts with steam to obtain further quantities of H2. The WGSR also requires
Hydrogen_production
at the Fuji Speedway in Tokyo. 7 riders competed in the event. The H2 classification is for tetraplegics with minor upper limb impairment from C7 thru
Cycling at the 2020 Summer Paralympics – Men's road time trial H2
Cycling_at_the_2020_Summer_Paralympics_–_Men's_road_time_trial_H2
Mammalian protein found in Homo sapiens
H2 receptors are a type of histamine receptor found in many parts of the anatomy of humans and other animals. They are positively coupled to adenylate
Histamine_H2_receptor
handcycle classifications are for cyclists using handcycles rather than standard bicycles, because of lower limb dysfunction or amputation. The H2 category
Cycling at the 2016 Summer Paralympics – Men's road time trial H2
Cycling_at_the_2016_Summer_Paralympics_–_Men's_road_time_trial_H2
Multinational brand of television channels
H2 (or History2) is a brand name owned by A+E Global Media (a joint venture between the Hearst Communications and the Walt Disney Television division of
H2_(A&E_Networks)
Chemical compound
Prostaglandin H2 (PGH2), or prostaglandin H2 (PGH2), is a type of prostaglandin and a precursor for many other biologically significant molecules. It is
Prostaglandin_H2
Drug classification system
The Anatomical Therapeutic Chemical (ATC) Classification System is a drug classification system that classifies the active ingredients of drugs according
Anatomical Therapeutic Chemical Classification System
Anatomical_Therapeutic_Chemical_Classification_System
Competition classification for disabled athletes in sports
Disability sports classification is a system that allows for fair competition between people with different types of disabilities. Historically, the process
Disability sport classification
Disability_sport_classification
Mathematical classification of surfaces
In mathematics, the Enriques–Kodaira classification groups compact complex surfaces into ten classes, each parametrized by a moduli space. For most of
Enriques–Kodaira classification
Enriques–Kodaira_classification
Characterizes homeomorphisms of a compact orientable surface
structure of Mg is related to the type of g in the classification as follows: If g is periodic, then Mg has an H2 × R structure; If g is reducible, then Mg has
Nielsen–Thurston classification
Nielsen–Thurston_classification
Drug that blocks histamine or histamine agonists
upon. The two largest classes of antihistamines are H1-antihistamines and H2-antihistamines. H1-antihistamines work by binding to histamine H1 receptors
Antihistamine
Class of receptor proteins that bind histamine
four main types of histamine receptors: H1, H2, H3, and H4. H1 receptors are linked to allergic responses, H2 to gastric acid regulation, H3 to neurotransmitter
Histamine_receptor
Process of classifying disabled cycling participants
category that includes paraplegics and amputees In hand-cycling classifications, H1 and H2 can use an AP1 and AP2 handcycle, H3 can use an AP2, AP3 and ATP2
Para_cycling_classification
Motor vehicle
The GreenGT H2 is a sports racing car developed by the Swiss company GreenGT and the French racing team WELTER Racing. It uses hydrogen as an energy source
GreenGT_H2
Enzyme family
preferences, broadly designated ribonuclease H1 and H2. The human genome encodes both H1 and H2. Human ribonuclease H2 is a heterotrimeric complex composed of three
Ribonuclease_H
Class of enzymes that catalyse the reversible oxidation of molecular hydrogen
an enzyme that catalyses the reversible oxidation of molecular hydrogen (H2), as shown below: Hydrogen oxidation (1) is coupled to the reduction of electron
Hydrogenase
Hydrogen that is produced biologically
Biohydrogen is H2 that is produced biologically. Interest is high in this technology because H2 is a clean fuel and can be readily produced from certain
Biohydrogen
Means to measure signal processing ability
absent, and H2, present, in the event of a particular observation, y, a classical approach is to choose H1 when p(H1|y) > p(H2|y) and H2 in the reverse
Detection_theory
Two-dimensional manifold
neighbourhood homeomorphic to some open subset of the closure of the upper half-plane H2 in C. These homeomorphisms are also known as (coordinate) charts. The boundary
Surface_(topology)
Microbiological classification system for genus Salmonella
The Kauffmann–White classification or Kauffmann and White classification scheme is a system that classifies the genus Salmonella into serotypes, based
Kauffman–White_classification
Three dimensional analogue of uniformization conjecture
E1, SL~ × E1, H2 × E2, H2 × H2, H4, H2(C) (a complex hyperbolic space), F4 (the tangent bundle of the hyperbolic plane), S2 × E2, S2 × H2, S3 × E1, S4
Geometrization_conjecture
Para-cycling classification
para-cycling classification. The UCI recommends this be coded as MH3 or WH3. Union Cycliste Internationale (UCI) defines H3 as: H3.1 (ex-H2.1) Paraplegic
H3_(classification)
System to describe academic gowns or hoods
The Groves Classification is a numbering system to enable the shape of any academic gown or hood to be easily described and identified. It was devised
Groves_classification_system
Locomotive classification on the Pennsylvania Railroad took several forms. Early on, steam locomotives were given single-letter classes. As the 26 letters
Pennsylvania Railroad locomotive classification
Pennsylvania_Railroad_locomotive_classification
Group of even permutations of a finite set
first computed in (Schur 1911). H2(An, Z) = Z1 for n = 1, 2, 3; H2(An, Z) = Z2 for n = 4, 5; H2(An, Z) = Z6 for n = 6, 7; H2(An, Z) = Z2 for n ≥ 8. Robinson
Alternating_group
following two classifications, both of which used hand-operated bicycles: H1: tetraplegics with severe upper limb impairment to the C6 vertebra. H2: tetraplegics
Cycling at the 2024 Summer Paralympics – Men's road race H1–2
Cycling_at_the_2024_Summer_Paralympics_–_Men's_road_race_H1–2
Statistical classification in machine learning
In machine learning, a linear classifier makes a classification decision for each object based on a linear combination of its features. A simpler definition
Linear_classifier
International football competition
match(es) will be played: 19 November 2026. Source: FIFA Rules for classification: Group stage tiebreakers (H) Hosts 19 November 2026 (2026-11-19) 17:00
2026_FIFA_U-17_World_Cup
Branch of the Afroasiatic languages
further, but there is ongoing debate as to which belong together. The classification based on shared innovations given below, established by Robert Hetzron
Semitic_languages
Type of interstellar cloud
absorption nebulae, the formation of molecules (most commonly molecular hydrogen, H2), and the formation of H II regions. This is in contrast to other areas of
Molecular_cloud
Classification in abstract algebra
either factor then gives an isomorphism with Cln[0](C) ≅ End(CN). The classification allows Dirac spinors and Weyl spinors to be defined in even dimension
Classification of Clifford algebras
Classification_of_Clifford_algebras
1909 design of steam locomotive
the South African Railways classification and renumbering of locomotives took place, these five were designated Class H2. The requirement for a tank
South_African_Class_H2_4-8-2T
Measure of the joint variability
on H1×H2 (anti linear in the first variable) given by KX,Y(h1,h2)=cov(𝐗,𝐘)(h1,h2)=E[⟨h1,(𝐗−E[𝐗])⟩1⟨(𝐘−E[𝐘]),h2⟩2]=E[⟨h1,𝐗⟩1⟨𝐘,h2⟩2]−E[⟨h
Covariance
Heart rhythm medication
phases to the most common classification system — Vaughan Williams — described below. The Vaughan Williams classification was introduced in 1970 by Miles
Antiarrhythmic_agent
Any disease or malfunction of the autonomic nervous system
from the original on 2021-08-22. Retrieved 2021-08-22. "H2 Blockers. Reducing stomach acid with H2 Blockers. | Patient". Patient. Archived from the original
Dysautonomia
of a bird (wšn) mꜣꜥ, wšm, pq (pꜣq) 1. an abbreviation for ꜣpd, "bird" 𓆀 H2 U+13180 head of heron Be effective (ꜣḫ) mꜣꜥ, wšm, pq (pꜣq) 1. Phoneme for
List_of_Egyptian_hieroglyphs
Type of connective tissue in animals
Dense connective tissue Details Identifiers Latin textus connectivus compactus TH H2.00.03.1.00003 Anatomical terms of microanatomy [edit on Wikidata]
Dense_connective_tissue
Entrance of abdominal organs into the middle chest through the diaphragm
and adjusting eating habits. Medications that reduce gastric acid such as H2 blockers or proton pump inhibitors may also help with the symptoms. If the
Hiatal_hernia
Wheelchair sport classification
factoring. Against this factoring, H2 men are 77.22% and H2 women are 67.73%. When H3 men are set at 100%, H2 men are 70.40% and H2 women are 69.64%. When H4 and
F1_(classification)
Motor vehicle
concept cars called H2 and BEV Concepts that have been converted to run using a hydrogen engine and a battery-electric system. The H2 concept was based
Toyota_AE86
2024. "Statutory Instruments, S.I. No. 187 Of 2006, Roads Act 1993 (Classification Of National Roads), Order 2006". Irish Statute Book. Archived from the
List_of_enclaves_and_exclaves
Skin disorder
need to be given as a combination of H1 antagonists, or possibly with an H2-receptor antagonist such as cimetidine. Over-the-counter vitamin C, 1000 mg
Dermatographic_urticaria
Beetles that emit a spray when threatened
C6H4(OH)2(aq) → C6H4O2(aq) + H2(g) The known net reaction, which further accounts for the theoretical reaction of the H2(g) and 1/2O2(g) products of the
Bombardier_beetle
Tabular arrangement of the chemical elements
which have too high an ionisation energy. Hydrogen thus forms a covalent H2 molecule, and boron forms a giant covalent structure based on icosahedral
Periodic_table
Smartphone electronics product line
in FP32) LPDDR2/3 Single-channel 32-bit 600 MHz (4.8 GB/s) July 28, 2015 H2 2015 MSM8929 Snapdragon 415 4 + 4 cores (1.4 GHz + 1.0 GHz Cortex-A53) Adreno
List of Qualcomm Snapdragon systems on chips
List_of_Qualcomm_Snapdragon_systems_on_chips
Qualifier for UEFA Euro 2028
First match(es) will be played: March 2027. Source: UEFA Rules for classification: Counting only matches against teams ranked first to fourth in the group
UEFA_Euro_2028_qualifying
Plants in the family Fabaceae
into ammonia (NH3). The chemical reaction is: N2 + 8 H+ + 8 e− → 2 NH3 + H2 Ammonia is converted to another form, ammonium (NH+4), usable by (some) plants
Legume
International football competition
First match(es) will be played: 24 June 2027. Source: FIFA Rules for classification: Group stage tiebreakers (H) Hosts 24 June 2027 (2027-06-24) Estádio
2027_FIFA_Women's_World_Cup
Seasonal agricultural worker visa for the United States
it for the H-2A status need to fill the main form followed by the H classification supplement, Pages 13–17. The H-2A status is one of the statuses where
H-2A_visa
Shaftesbury Park Estate Norbury Transport UK London Bus St George's Hospital H2 Golders Green tube station Circular route via Hampstead Garden Suburb Metroline
List_of_bus_routes_in_London
Measure of a civilization's evolution
Global Warming Archived 2021-01-28 at the Wayback Machine E³ Handbook Clarke H2 energy systems Holdren, John P.; Kaysen, Carl (2003). "Environmental Change
Kardashev_scale
Set of methods for supervised statistical learning
max-margin model with associated learning algorithms that analyze data for classification and regression analysis. Developed at AT&T Bell Laboratories, SVMs are
Support_vector_machine
2014 film by Michael Bay
medical officer who transforms into a white and green 2009 S.A.R. Hummer H2 ambulance. John DiMaggio as Crosshairs: An Autobot paratrooper and elite sniper
Transformers: Age of Extinction
Transformers:_Age_of_Extinction
Chemical compound
reactions play, the reaction: H2 + NH2 → NH3 + H has a rate constant of 2.2×10−15. Assuming H2 densities of 105 and [NH2]/[H2] ratio of 10−7, this reaction
Ammonia
Rock-forming minerals with predominantly silicate anions
endmember) Cookeite – (LiAl4◻)[AlSi3O10](OH)8 Chrysocolla – Cu2−xAlx(H2−xSi2O5)(OH)4·nH2O, x < 1 Ekanite – Ca2ThSi8O20 Gyrolite – NaCa16Si23AlO60(OH)8·14H2O
Silicate_mineral
States of matter for water as a solid
produced filled ice in a stable phase named C0 from a mixture of hydrogen (H2) and water (H2O), using temperatures from 100 to 270 K (−173 to −3 °C; −280
Phases_of_ice
CH3OH; simplest possible alcohol
CO2 + 3 H2 → CH3OH + H2O In terms of mechanism, the process occurs via initial conversion of CO into CO2, which is then hydrogenated: CO2 + 3 H2 → CH3OH
Methanol
Class of chemical substance
post-synthetic impregnation with additional metal cations. (C5H5)V(CO)3(H2) and Mo(CO)5(H2) are great examples of increased binding energy due to open metal
Metal–organic_framework
British locomotive classification system
A number of different numbering and classification schemes were used for the locomotives owned by the London and North Eastern Railway (LNER) and its constituent
LNER locomotive numbering and classification
LNER_locomotive_numbering_and_classification
Heaths in the British National Vegetation Classification system. H1 Calluna vulgaris - Festuca ovina heath H2 Calluna vulgaris - Ulex minor heath H3 Ulex
List of plant communities in the British National Vegetation Classification
List_of_plant_communities_in_the_British_National_Vegetation_Classification
Classification of membrane proteins including ion channels
Transporter Classification Database (or TCDB) is an International Union of Biochemistry and Molecular Biology (IUBMB)-approved classification system for
Transporter Classification Database
Transporter_Classification_Database
Flow of stomach contents into the esophagus
fatty foods, acidic foods, and spicy foods. Medications include antacids, H2 receptor blockers, proton pump inhibitors, and prokinetics. In the Western
Gastroesophageal reflux disease
Gastroesophageal_reflux_disease
of logical sentences. Formally, the hypothesis space is a disjunction H1∨H2∨...∨Hn (i.e., one or more of hypotheses 1 through n are true). A version space
Version_space_learning
FIFA World Cup group
2025 were used for seeding for the final draw. Source: FIFA Rules for classification: Group stage tiebreakers Notes: Tied on head-to-head result (Saudi Arabia
2026_FIFA_World_Cup_Group_H
Gazipur can be classified according to the British undergraduate degree classification system, when it is evaluated with class grade. GPA above or equal to
Grading_systems_by_country
15th-century codex in an unknown script
are measured using a metric called h2, or second-order conditional entropy. Natural languages tend to have an h2 between 3 and 4, but Voynichese has
Voynich_manuscript
Statistical interpretation with many tests
hypotheses. Suppose we have a number m of null hypotheses, denoted by: H1, H2, ..., Hm. Using a statistical test, we reject the null hypothesis if the test
Multiple_comparisons_problem
93rd 24 Hours of Le Mans endurance race
15-minute "H2" session to determine pole position among the fastest cars of the H1 session. Hypercar entries which failed to reach the H2 pole shootout
2025_24_Hours_of_Le_Mans
Hallucinogenic class of psychoactive drug
Lüscher, Christian, Ungless, Mark A. (14 November 2006). "The Mechanistic Classification of Addictive Drugs". PLOS Medicine. 3 (11) e437. doi:10.1371/journal
Psychedelic_drug
First match(es) will be played: 13 January 2027. Source: IHF Rules for classification: 1) points; 2) head-to-head points; 3) head-to-head goal difference;
2027 World Men's Handball Championship
2027_World_Men's_Handball_Championship
System for identifying vehicles
5G8 Holden Volt 5GA Buick MPV/SUV 5GD Daewoo G2X 5GN Hummer H3T 5GR Hummer H2 5GT Hummer H3 5GZ Saturn MPV/SUV 5HD Harley-Davidson for export markets 5J6
Vehicle_identification_number
Central nervous system stimulant
also interacts with gastric acid reducers such as proton pump inhibitors and H2 antihistamines, which increase gastrointestinal pH (i.e., make it less acidic)
Amphetamine
Concept in differential geometry
structures will exist if and only if the second Stiefel–Whitney class w2(M) ∈ H2(M, Z2) of M vanishes. Furthermore, if w2(M) = 0, then the set of the isomorphism
Spin_structure
Solid or semisolid lubricant
H2 and H3. H1 lubricants are food-grade lubricants used in food-processing environments where there is the possibility of incidental food contact. H2
Grease_(lubricant)
Artificial non-saccharide sweetener
carcinogenic). The lead investigator of the IARC report stated that the classification "shouldn't really be taken as a direct statement that indicates that
Aspartame
UK plant community type
NVC community H2 (Calluna vulgaris - Ulex minor heath) is one of the heath communities in the British National Vegetation Classification system. It is
British_NVC_community_H2
Inflammation of the stomach lining
and gastroduodenal ulcers. Treatment includes medications such as antacids, H2 blockers, and proton pump inhibitors. During an acute flare-up, drinking viscous
Gastritis
Primary cell of the nervous system
and computational neuroscience community to come up with a universal classification of neurons that will apply to all neurons in the brain as well as across
Neuron
Microbiological classification system for genus Salmonella
The Kauffmann–White classification or Kauffmann and White classification scheme is a system that classifies the genus Salmonella into serotypes, based
Kauffmann–White classification
Kauffmann–White_classification
Brands Hatch. Cyclists are given a classification depending on the type and extent of their disability. The classification system allows cyclists to compete
Cycling at the 2012 Summer Paralympics – Men's road time trial
Cycling_at_the_2012_Summer_Paralympics_–_Men's_road_time_trial
Fe(II) phosphate mineral
Fe3+ + e− (oxidation reaction) H2O + e− ⇌ ½ H2 + OH− (reduction reaction) Fe2+ + H2O ⇌ Fe3+ + ½ H2 + OH− (global reaction with proper charge balance)
Vivianite
2007 film by Michael Bay
the Autobot medic who transforms into a green 2007 search and rescue Hummer H2 ambulance. Jess Harnell as Ironhide, the Autobot weapons specialist who transforms
Transformers_(film)
Immunological condition
such as cetirizine, fexofenadine, ketotifen, or loratadine and desloratadine H2-antihistamines, such as famotidine or ranitidine Antileukotrienes, such as
Mast_cell_activation_syndrome
Algebraic curve in mathematics
elliptic curves with shape invariant j ≥ 1 as ellipses in the hyperbolic plane ℍ2. Specifically, the intersections of the Minkowski hyperboloid with quadric
Elliptic_curve
Brands Hatch. Cyclists are given a classification depending on the type and extent of their disability. The classification system allows cyclists to compete
Cycling at the 2012 Summer Paralympics – Men's road race
Cycling_at_the_2012_Summer_Paralympics_–_Men's_road_race
2009 film by Ruben Fleischer
Little Rock feigns being bitten by a zombie. The two men find a yellow Hummer H2 loaded with weapons and continue on before running into another trap set by
Zombieland
Disaccharide made of glucose and fructose
equation is: C12H22O11 + 6.288 KNO3 → 3.796 CO2 + 5.205 CO + 7.794 H2O + 3.065 H2 + 3.143 N2 + 2.988 K2CO3 + 0.274 KOH Sucrose burns with chloric acid, formed
Sucrose
Planned city in Tabuk, Saudi Arabia
Retrieved 3 July 2018. "Can Saudi's Neom be a blueprint of a hydrogen-run city?". H2 Bulletin. 12 January 2021. Narayanan, Nirmal (27 October 2024). "Saudi Arabia
Neom
Organic compound
2 CH3CH2OH + 2 Na → 2 CH3CH2ONa + H2 or a very strong base such as sodium hydride: CH3CH2OH + NaH → CH3CH2ONa + H2 The acidities of water and ethanol
Ethanol
Rod-shaped, gram-negative bacterium
Early classifications of prokaryotes placed these in a handful of genera based on their shape and motility (at that time Ernst Haeckel's classification of
Escherichia_coli
High-speed rail project in England
June 2022. DfT 2010, p. 118. "High Speed Two Phase One Information Paper H2: Birmingham Interchange Station" (PDF). gov.uk. High Speed Two (HS2) Limited
High_Speed_2
Monoamine neurotransmitter
Enterochromaffin-like cells in the stomach release histamine, stimulating parietal cells via H2 receptors. This triggers carbon dioxide and water uptake from the blood, converted
Histamine
Doctors in full dress wear black velvet caps of the doctoral bonnet shape [h2], with cords and tassels gold for higher doctors and of the faculty colour
Academic dress of the National University of Ireland
Academic_dress_of_the_National_University_of_Ireland
Pos Driver H1 H2 LC F H1 H2 LC F Pts DON CRO Colour Result Gold Winner Silver Second place Bronze Third place Green Points classification Blue Non-points
2003 Formula Renault 2.0 UK Championship
2003_Formula_Renault_2.0_UK_Championship
Wheelchair sport classification
F4, also T4 and SP4, is a wheelchair sport classification that corresponds to the neurological level T1- T7. Historically, it was known as 1C Incomplete
F4_(classification)
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