Radiology in pregnancy

Radiodiscus coppingers is a species of small air-breathing land snail, a terrestrial gastropod mollusk in the family Charopidae. This species is found in Brazil, Argentina, and Chile.

Radionucleide

Radioisotope heater units (RHU) are small devices that provide heat through radioactive decay. They are similar to tiny radioisotope thermoelectric generators (RTG) and normally provide about one watt of heat each, derived from the decay of a few grams of plutonium-238—although other radioactive isotopes could be used. The heat produced by these RHUs is given off continuously for several decades and, theoretically, for up to a century or more.

Radionics (also called electromagnetic therapy (EMT)) is a form of alternative medicine that claims disease can be diagnosed and treated by applying electromagnetic radiation (EMR), such as radio waves, to the body from an electrically powered device. It is similar to magnet therapy which also applies EMR to the body, but using a magnet that generates a static electromagnetic field. Several systematic reviews have shown radionics is no more effective than placebo and falls into the category of pseudoscience.

Radiometry is a set of techniques for measuring electromagnetic radiation, including visible light. Radiometric techniques in optics characterize the distribution of the radiation's power in space, as opposed to photometric techniques, which characterize the light's interaction with the human eye. Radiometry is distinct from quantum techniques such as photon counting. The use of radiometers to determine the temperature of objects and gasses by measuring radiation flux is called pyrometry. Handheld pyrometer devices are often marketed as infrared thermometers. Radiometry is important in astronomy, especially radio astronomy, and plays a significant role in Earth remote sensing. The measurement techniques categorized as radiometry in optics are called photometry in some astronomical applications, contrary to the optics usage of the term. Spectroradiometry is the measurement of absolute radiometric quantities in narrow bands of wavelength.

Radiokayanin kits

Radiologists

Radiomafia was a Finnish radio station owned by Yle and mainly directed to teenagers and young adults. It was established on June 1, 1990 and decommissioned on January 12, 2003. It was followed by YleX, with some of the programmes moved to other channels, such as YleQ, Yle Radio Suomi and .

Radiological weapons

Radiola (radio station)

Radiodiscus coppingers

Radiographs

Radioisotope electric propulsion

A radiogram is a formal written message transmitted by radio. Also known as a radio telegram or radio telegraphic message, radiograms use a standardized message format, form and radiotelephone and/or radiotelegraph transmission procedures. These procedures typically provide a means of transmitting the content of the messages without including the names of the various headers and message sections, so as to minimize the time needed to transmit messages over limited and/or congested radio channels. Various formats have been used historically by maritime radio services, military organizations, and Amateur Radio organizations. Radiograms are typically employed for conducting , which provides a message transmission and delivery audit trail. Sometimes these records are kept for proprietary purposes internal to the organization sending them, but are also sometimes legally defined as public records. For example, maritime Mayday/SOS messages transmitted by radio are defined by international agreements as public records.

Radionomy is an online platform that provides tools for operating online radio stations. Radionomy is part of Radionomy Group.

Radioisotopes and the Age of The Earth

Radioeco.it is the official web-radio station of the University of Pisa, Italy. The radio is fully run by University students, whose aim is to inform and entertain all the students of the University. The main purpose of this non-profit organization is to give voice to the University students of the Pisa area. The radio studios are located in the Faculty of Economics of Pisa, Pisa, and it is possible to listen to the radio via its website and through mobile devices, as the TuneIn app and Nokia Internet Radio. The radio broadcasts 24/7 and features several live programmes each day, from band interviews to politics and economics debates. The radio also runs a reporting and blogging activity, mainly concerning events and students' initiatives.

RadioIO (pronounced “radio eye-oh”) is a New York-based internet radio and streaming media service owned by RadioIO, Inc. (RAIO) started in 1998. It was the first Internet radio company to be publicly traded. RadioIO broadcasts over 100 music and talk-show hosted channels. RadioIO's music programming ranges from genre channels such as “Classic Rock” and “Today’s Pop” to formats such as “Ambient” and “Reggae.” RadioIO music channels are managed by “StreamHosts,” with FJ Forest (Musical Starstreams), Robert Goodman (DJ/producer), Doug Wendt (Midnight Dread),

A radionuclide cisternogram is a medical imaging study which involves injecting a radionuclide by lumbar puncture (spinal tap) into a patient's cerebral spinal fluid (CSF) to determine if there is abnormal CSF flow within the brain and spinal canal which can be altered by hydrocephalus, Arnold–Chiari malformation, syringomyelia, or an arachnoid cyst. It may also evaluate a suspected leak (also known as a CSF fistula) from the CSF cavity into the nasal cavity. A leak can also be confirmed by the presence of beta-2 transferrin in fluid collected from the nose before this more invasive procedure is performed. The patient may be instructed to not eat or drink, or take medications such as aspirin or other blood thinners before the procedure. Pledgets can be inserted into the nasal cavity before the procedure when a CSF leak is suspected. The patient's spinal fluid is injected with a radiopharmaceutical tracer, such as DTPA tagged with indium 111, through a lumbar puncture (spinal tap). The tracer will diffuse up the spinal column and into the intracranial ventricles and the subarachnoid spaces around the brain. The progress of the tracer's diffusion through the CSF will be recorded by a nuclear medicine gamma camera. Images are usually taken immediately, at 6 hours, and at 24 hours. The patient may be asked to return for 48- and 72-hour follow-up scans. The pledgets will be removed and either imaged with a gamma camera or counted using a gamma counter. If the tracer has leaked onto the pledget through the skull, it will appear on the gamma camera image or register abnormal counts allowing the diagnostician to determine the location of the leak within the sinus cavity. The site of the CSF leak can be plugged with fat or muscle by endoscopic surgery. Headaches following the procedure are common, but should fade in 3–5 days. Drinking caffeinated liquids, as well as bed rest, is often recommended, though at least one scientific paper disputes the practice.

Radioisotopic thermoelectric generator

(ரேடியோப்பெட்டி)

Radiodiscus patagonicus is a minute species of air-breathing land snail, a terrestrial gastropod mollusk or micromollusk in the family Charopidae.

Radioanatomy (x-ray anatomy) is anatomy discipline which involves the study of anatomy through the use of radiographic films. The x-ray film represents two-dimensional image of a three-dimensional object due to the summary projection of different anatomical structures onto a planar surface. It requires certain skills for the correct interpretation of such images. Radiological anatomy is a necessary component of training for radiologists as well as medical students.

Radiogram (album)

Radionuclide angiography is an area of nuclear medicine which specialises in imaging to show the functionality of the right and left ventricles of the heart, thus allowing informed diagnostic intervention in heart failure. It involves use of a radiopharmaceutical, injected into a patient, and a gamma camera for acquisition. A MUGA scan (multigated acquisition) involves an acquisition triggered (gated) at different points of the cardiac cycle. MUGA scanning is also called equilibrium radionuclide angiocardiography, radionuclide ventriculography (RNVG), or gated blood pool imaging, as well as SYMA scanning (synchronized multigated acquisition scanning).

Kamal Humphrey de Iruretagoyena, better known by his stage name Radioinactive, is an American hip hop artist from Los Angeles, California. He is a member of The Shape Shifters. He was a member of Log Cabin along with Eligh, Murs and Scarub. He has released a number of solo albums, as well as collaborating with artists such as Busdriver, Daedelus, and Antimc.

Radiofreccia

Radiological hazard

The radioisotope rocket is a type of thermal rocket engine that uses the heat generated by the decay of radioactive elements to heat a working fluid, which is then exhausted through a rocket nozzle to produce thrust. They are similar in nature to nuclear thermal rockets such as NERVA, but are considerably simpler and often have no moving parts.

Radionomy SA

Radiogenic

Radiofabrik is Salzburg’s community radio. It is an independent, non-commercial, non-profit radio station in Salzburg, Austria.

The radioisotope rocket is a type of thermal rocket engine that uses the heat generated by the decay of radioactive elements to heat a working fluid, which is then exhausted through a rocket nozzle to produce thrust. They are similar in nature to nuclear thermal rockets such as NERVA, but are considerably simpler and often have no moving parts. The basic idea is a development of existing radioisotope thermoelectric generator, or RTG, systems, in which the heat generated by decaying nuclear fuel is used to generate power. In the rocket application the generator is removed, and the working fluid is instead used to produce thrust directly. Temperatures of about 1500 to 2000 °C are possible in this system, allowing for specific impulses of about 700 to 800 seconds (7 to 8 kN·s/kg), about double that of the best chemical engines such as the LH2-LOX Space Shuttle Main Engine. However the amount of power generated by such systems is typically fairly low. Whereas the full "active" reactor system in a nuclear thermal rocket can be expected to generate over a gigawatt, a radioisotope generator might get 5 kW. This means that the design, while highly efficient, can produce thrust levels of perhaps 1.3 to 1.5 N, making them useful only for thrusters. In order to increase the power for medium-duration missions, engines would typically use fuels with a short half-life such as Po-210, as opposed to the typical RTG which would use a long half-life fuel such as plutonium in order to produce more constant power over longer periods of time. The even shorter half-life element fermium has also been suggested Another drawback to the use of radioisotopes in rockets is an inability to change the operating power. The radioisotope constantly generates heat that must be safely dissipated when it is not heating a propellant. Reactors, on the other hand, can be throttled or shut down as desired.

Radiofluorescent

Radiogenic nuclide

Radiodiffusion Télévision Congolaise

Radioinactive

Radiolocation mobile station is – according to article 1.89 of the International Telecommunication Union´s (ITU) ITU Radio Regulations (RR) – defined as «A radio station in radiolocation service intended to be used while in motion or during halts at unspecified points.» Each radiolocation station shall be classified by the radicommunication service in which it operates permanently or temporarily. See also(Main articles: Radio station and Radiocommunication service)

Radiolive

Radiometer Assessment using Vertically Aligned Nanotubes

Radiomegaro

Radionavigation land station

Radiolarian ooze

Radiohead scotch mist

Radioio.com

Radiofar (Serbian Cyrillic: Радиофар) is a suburban neighborhood of Belgrade, the capital of Serbia. It is located in the Belgrade's municipality of Surčin. Radiofar, actually a sub-neighborhood of Surčin, is a settlement near the Belgrade's Nikola Tesla Airport, 10 km west of downtown Belgrade. It is located in the vicinity the Belgrade-Zagreb highway, close to the airport's control tower. This is how the settlement got its name ('radiofar' = aerodrome beacon). Settlement began to develop in the late 1980s as the weekend-settlement, but grew with an influx of refugees as the result of the Yugoslav Wars from 1991. Estimated population by 2011 was over 3,000.

A radiogram is a formal written message transmitted by radio. Also known as a radio telegram or radio telegraphic message, radiograms use a standardized message format, form and radiotelephone and/or radiotelegraph transmission procedures. These procedures typically provide a means of transmitting the content of the messages without including the names of the various headers and message sections, so as to minimize the time needed to transmit messages over limited and/or congested radio channels. Various formats have been used historically by maritime radio services, military organizations, and Amateur Radio organizations.

Radiodiscus compactus

Radionerva

Radiogatún

Radiola was a privately owned French radio station which broadcast under that name from 6 November 1922 until 28 March 1924 with the intention of promoting the sale of Radiola radio receivers, which were manufactured by the Société française radio-électrique (SFR), a subsidiary of the Compagnie générale de la télégraphie sans fil (CSF). The Paris-based station made its first test transmissions on 26 June 1922 and its first news bulletin was broadcast on 6 January 1923. Radiola's chief announcer was Marcel Laporte. Renamed Radio Paris on 29 March 1924, the station was taken into public ownership on 17 December 1933. It remained on air throughout the German occupation of France in World War II – under the control of the Nazi authorities and French collaborationists – until the liberation of Paris in August 1944.

Radioimmunotherapeutic

Radiofilum is a genus of green algae in the class Chlorophyceae.

Radiograph

Radiogardase

Radiophonic Workshop is a 2014 album of recordings created by the BBC Radiophonic Workshop. It was only available through the Bowers and Wilkins's Society of Sound music subscription service.

Radiophys. Quantum Electron.

Radiohead amnesiac

Radiola (album)

Radiohola

Radiographic Anatomy

Radioimmunodetection

Radioelement

Radioisotopic labeling

Radiological Protection Institute of Ireland

Radioisotope scan

Radiomédia

Radiohead (South Park)

The radiographic supporting bone index (RSBI) is a clinical index that allows dentists to measure facial alveolar bone in the horizontal or axial plane. It enables orthodontists and dentists placing dental implants, or completing esthetic dentistry, to accurately determine the amount of facial alveolar bone available before initiating treatment. Prior to the development of this index, orthodontists and dentists faced a serious risk of inducing iatrogenic gum recession following treatment. Thin facial alveolar bone, including dehiscences or fenestrations, is considered a risk factor for gum recession. The risk of gum recession can increase following orthodontic treatment or dental implant treatment if bone volume is limited in the horizontal (axial) plane.Previously there was no defined tool to measure the quantity of facial alveolar bone. With the advent of 3D imaging in dentistry, through the use of , the RSBI becomes a useful modality to predictably aid in orthodontic and dental implant treatment planning.

Radiopark is a skyscraper in Auckland Park, Johannesburg, South Africa. It is thirty stories tall and is the headquarters of the South African Broadcasting Corporation.

Radiological Protection of Patients

Radiokinesis

Radioecology is the branch of ecology concerning the presence of radioactivity in Earth’s ecosystems. Investigations in radioecology include field sampling, experimental field and laboratory procedures, and the development of environmentally predictive simulation models, all in an attempt to understand the migration methods of radioactive material throughout the environment. The practice consists of techniques from the general sciences of physics, chemistry, mathematics, biology, and ecology, coupled with applications in radiation protection. Radioecological studies provide the necessary data for dose estimation and risk assessment regarding radioactive pollution and its effects on human and environmental health. Radioecology strives to detect and evaluate the effects of ionizing radiation and radionuclides on ecosystems, and then assess their risks and dangers. The study is primarily European by origin, intended to ascertain and manage the risks involved as a result of the Chernobyl disaster. The practice of radioecology is vitally important for the preservation of the environment considering the recent boom in nuclear energy production.

Radiography is a peer-reviewed medical journal covering diagnostic and therapeutic radiography. The journal is published by Elsevier and was established in 1995. The founding editor-in-chief was H. Brian Bentley from 1995 until 2003. The current editor-in-chief is Julie Nightingale (University of Salford). The journal was preceded by an insert in the starting in 1927. In 1935, the current journal's predecessor, which was also known as Radiography was first published. It is the official journal of the Society and College of Radiographers and the . Besides regular issues, the journal occasionally publishes special issues.

Radionavigation service

Radiodonta is a clade of stem-group arthropods that was successful worldwide during the Cambrian period, and included the earliest large predators known. Some of the most famous species included in Radiodonta are the Cambrian taxa Anomalocaris canadensis, Hurdia victoria, and Peytoia nathorsti, the Ordovician Aegirocassis benmoulai and the Devonian Schinderhannes bartelsi.

Radiomás

Radiological injuries

Radionavigation

Radiography, dental

In geometry, a radiodrome is the pursuit curve followed by a point that is pursuing another linearly-moving point. The term is derived from the Greek words "ῥάδιος" (easier) and "δρόμος" (running). The classic (and best-known) form of a radiodrome is known as the "dog curve"; this is the path a dog follows when it swims across a stream with a current after food it has spotted on the other side. Because the dog drifts downwards with the current, it will have to change its heading; it will also have to swim further than if it had computed the optimal heading. This case was described by Pierre Bouguer in 1732. A radiodrome may alternatively be described as the path a dog follows when chasing a hare, assuming that the hare runs in a straight line at a constant velocity.It is illustrated by the following figure:

Radioglaciology is the study of glaciers and ice sheets using radar. It employs a geophysical method similar to ground-penetrating radar that operates at frequencies in the MF, HF and VHF portions of the radio spectrum. Radioglaciology is sometimes referred to as "ice-penetrating radar" or "radio-echo sounding". Glaciers are well suited to investigation by radar because the imaginary part of the permittivity of ice is small relative to its real part; this ratio is called the loss tangent. The conductivity of ice is small at radio frequencies, so its dielectric absorption is also small.

Radiogram (furniture)

Radiogram is a comedy album by The Bob & Tom Show, which was first released in November 2001. It is a two-disc set which represents original material recorded during their syndicated, daily radio show and other studio numbers which had not been previously presented on air.

radiolocation land station is – according to article 1.90 of the International Telecommunication Union´s (ITU) ITU Radio Regulations (RR) – defined as «A radio station in radiolocation service not intended to be used while in motion.» Each radiolocation station shall be classified by the radicommunication service in which it operates permanently or temporarily. See also(Main articles: Radio station and Radiocommunication service)

City Island Ball Park

Radiofrequency ablation (RFA) is a medical procedure in which part of the electrical conduction system of the heart, tumor or other dysfunctional tissue is ablated using the heat generated from medium frequency alternating current (in the range of 350–500 kHz). RFA is generally conducted in the outpatient setting, using either local anesthetics or conscious sedation anesthesia. When it is delivered via catheter, it is called radiofrequency catheter ablation.

The Radiodiffusion Télévision Congolaise is the national broadcaster of the Central African state of Republic of the Congo. Télévision Congolaise is headquartered in the capital city Brazzaville.

Radiological hazards

Radiophron

Radiophonic

Radioisotope heater unit

Radiology technologist

Radiometry

Radionuclides

Radiometric calibration is a general term used in science and technology for any set of calibration techniques in support of the measurement of electromagnetic radiation and atomic particle radiation. These can be for instance, in the field of Radiometry or the measurement of ionising radiation radiated from a source.

Radiomas

Radioglaciology

Radiolicious was an internet radio service created by MySimBook, based in Lafayette, Louisiana. Users were able to search and listen to terrestrial radio stations. While listening, users are offered the ability to send in song requests to DJ's, enter contests, bookmark favorite stations, post wall comments, share the station with friends, and access social networks such as Facebook. The service is free to users and is supported by advertisements and barter from participating radio stations.

Radiofreccia, released in 1998, is the first movie directed by Italian rock singer-songwriter Luciano Ligabue, based on his 1997 debut novel . It features the singer-songwriter Francesco Guccini (with whom Ligabue also collaborated for a song) in a small role.

Radiophonie vol. 9

Radiolocation-satellite service (short: RLSS) is – according to Article 1.49 of the International Telecommunication Union´s (ITU) Radio Regulations (RR) – defined as «A radiodetermination-satellite service used for the purpose of radiolocation. This (radiocommunication) service may also include the feeder links necessary for its operation.» See also(Main article: Radiocommunication service)

A radiogenic nuclide is a nuclide that is produced by a process of radioactive decay. It may itself be radioactive (a radionuclide) or stable (a stable nuclide). Radiogenic nuclides (more commonly referred to as radiogenic isotopes) form some of the most important tools in geology. They are used in two principal ways:

Radiophony

Radiolabeling

Radiohjälpen is a Swedish help organisation and foundation that is organised by Sveriges Radio AB, Sveriges Television AB and Sveriges Utbildningsradio AB.

Radiolocation service

Radioluminescent Paint

Radiografias

Radiographic equipment

The Radiology Associates Field at Jackie Robinson Ballpark (also known as Jackie Robinson Stadium or City Island Ball Park) is a historic baseball field in Daytona Beach, Florida, United States. It is located at 105 East Orange Avenue on City Island, in the Halifax River.

Radiohead: The Best of

Radioio

RadiologyInfo.org

Radiodiscus is a genus of small air-breathing land snail, a terrestrial gastropod mollusk in the family Charopidae.

Radiolocation

Radioland Murders

Radiological dispersal device

Radioens Big Band

Radiopharmacy

Radiopaque

Radiopaedia is a wiki-based international collaborative radiology educational web resource containing reference articles, radiology images, and patient cases. It is a business owned by Investling, gaining revenue from ads and paid subscription. It also contains a radiology encyclopedia. It is currently the largest freely available radiology related resource in the world with more than 25,500 patient cases and over 10,300 collaborative articles on radiology-related topics, which are of varying quality. The open edit nature of articles allows radiologists and trainees to modify and refine most content through time.

Radiodiscus

Radiolate Partula

Radiogenic heating

Radiographic systems to classify osteoarthritis vary by which joint is being investigated. In osteoarthritis, the choice of treatment is based on pain and decreased function, but radiography can be useful before surgery in order to prepare for the procedure.

Radiofrequency interference

Radiological poison

Kamal Humphrey de Iruretagoyena

Radiofrequency MASINT is one of the six major disciplines generally accepted to make up the field of Measurement and Signature Intelligence (MASINT), with due regard that the MASINT subdisciplines may overlap, and MASINT, in turn, is complementary to more traditional intelligence collection and analysis disciplines such as SIGINT and IMINT. MASINT encompasses intelligence gathering activities that bring together disparate elements that do not fit within the definitions of Signals Intelligence (SIGINT), Imagery Intelligence (IMINT), or Human Intelligence (HUMINT).

Radiojazzgruppen (The Radio Jazz Group) was a Swedish band led by Arne Domnérus (1967–78) and Lennart Åberg (early 1980s). Several prominent Swedish musicians have been members of the group, such as Ulf Andersson, Jan Allan, Bosse Broberg, Rolf Ericson, Olle Lind, , Bengt Hallberg, Egil Johansen, Jan Johansson and Georg Riedel. During the 1970s and 80s the band worked with guest musicians and composers such as Carla Bley, Anthony Braxton, Don Cherry, Gil Evans, Thad Jones, George Russell and Aage Tanggaard.

Radiogram (music)

Radiola Wireless Corporation

The Radioisotope Production Facility (RPF), is a facility for the production of radioisotopes from irradiation of Low enriched uranium (LEU) in the ETRR-2 reactor. The (RPF) was supplied by the Argentine company Investigacion Aplicada (INVAP) and was commissioned during October and November 2011. The produced radioisotopes are used in medicine, industry and research activities for domestic market. The RPF is owned and operated by the Egyptian Atomic Energy Authority (AEA) at the in Inshas, 60 kilometers northeast of Cairo.

Radioelectrochemistry

Radiologically uncovered asymptomatic possible inflammatory-demyelinating disease

Radioimmunoassays

Radioecology is the branch of ecology concerning the presence of radioactivity in Earth’s ecosystems. Investigations in radioecology include field sampling, experimental field and laboratory procedures, and the development of environmentally predictive simulation models, all in an attempt to understand the migration methods of radioactive material throughout the environment.

RadiologyInfo

Radioisotope battery

Radioisotope

Radiofrequency lesioning

Radiological science

Radiology tech

Radiolabelled

Radiodread is a 2006 tribute album by the Easy Star All-Stars that covers Radiohead's 1997 album OK Computer in reggae, ska and dub styles. Their previous release, Dub Side of the Moon (2003), is a reggae/dub take on Pink Floyd's The Dark Side of the Moon.

Radiogenic isotope

Radiomaru

Radiodonta

Radioman (RM) was a rating for United States Navy and United States Coast Guard enlisted personnel, specializing in communications technology.

Radiography (journal)

Radiometer is a Danish multinational company which develops, manufactures and markets solutions for blood sampling, blood gas analysis, transcutaneous monitoring, immunoassay testing and the related IT management systems. The company was founded in 1935 in Copenhagen, Denmark by Børge Aagaard Nielsen and Carl Schrøder. It has over 3,200 employees and direct representation in more than 32 countries. Corporate headquarters remain in Copenhagen.

Radiological bomb

Radiophysics (also modern writing "Radio Physics") is a branch of physics focused on the theoretical and experimental study of certain kinds of radiation: its emission, propagation, and interaction with matter. The term is used in the following major meanings:
* study of radio waves (the original area of research)
* study of radiation used in radiology
* study of other ranges of the spectrum of electromagnetic radiation in some specific applications Among the main applications of radiophysics are radio communications, radiolocation, radio astronomy, and radiology.

Radiologic test

Radiolunate joint

Radioelectron Commun Syst

Radiological studies

Radiomafia

Radiofrequency identification

Radionerva collecta

Radioligand binding assay

Radiofrequency thermocoagulation

Radiometry is a set of techniques for measuring electromagnetic radiation, including visible light. Radiometric techniques in optics characterize the distribution of the radiation's power in space, as opposed to photometric techniques, which characterize the light's interaction with the human eye. Radiometry is distinct from quantum techniques such as photon counting. The use of radiometers to determine the temperature of objects and gasses by measuring radiation flux is called pyrometry. Handheld pyrometer devices are often marketed as infrared thermometers.

Radiophron is an extinct genus of wasp which existed in Spain during the early Cretaceous period. The only species is Radiophron ibericus.

Radiologic technologist

Radiogeology

Radiophonic Workshop (2014 album)

Radiology information system

Radiographic Supporting Bone Index

Radion (physics)

Radioiodine therapy

Radiographic classification of osteoarthritis

La voce degli studenti dell'Università di Pisa (The voice of Pisa University students)

A radionuclide identification device (RID) is a hand-held measurement instrument for the detection and identification of radioactive substances. They are used at national borders, by the police and firefighters to localize radioactive sources and determine the radioactive substances they consist of. A RID measures gamma (photon) radiation and optionally neutron radiation. These devices are sometimes named radio-isotope identifying devices (RIID) or handheld isotope identifiers. Some devices are designed to meet the requirements of the standards ANSI N42.34 and IEC 62327 which describe performance evaluation tests for RIDs.

Radioisotope heater units (RHU) are small devices that provide heat through radioactive decay. They are similar to tiny radioisotope thermoelectric generators (RTG) and normally provide about one watt of heat each, derived from the decay of a few grams of plutonium-238—although other radioactive isotopes could be used. The heat produced by these RHUs is given off continuously for several decades and, theoretically, for up to a century or more. In spacecraft, RHUs are necessary to heat critical components and subsystems. RHUs also reduce spacecraft complexity by making heater subsystems unnecessary. By having as few heating subsystems as possible, the overall complexity of the spacecraft can be reduced. While both RHUs and RTGs use the decay heat of a radioactive isotope (usually Pu-238), RHUs are generally much smaller as a result of omitting the thermocouples and heat sinks/radiators required to generate electricity from heat. Both RHUs and RTGs feature rugged, heat-resistant casings to safely contain the radioisotope in the event of a launch or re-entry vehicle failure. The total mass of a single RHU (including shielding) is about 40 grams. Similar schemes, such as thermo-ionic generators, have also been used.

Radiola Jet 25

Radionuclide drug

Radiopetti (Radio Set) is a 2015 Indian Tamil-language drama film directed by Hari Viswanath, starring Ramanujam TVV and Lakshmanan Koratur in lead roles. The film became the first Tamil film to win the KNN Audience Award in the official competition in Busan International Film Festival 2015, and was an official selection in Indian Panorama for 46th International Film Festival of India held at Panaji, Goa.

Radiopaedia.org

Radiohead's seventh studio album

A Radioisotope piezoelectric generator converts energy stored in the radioactive material directly into motion to generate electricity by the repeated deformation of a piezoelectric material. This approach creates a high-impedance source and, unlike chemical batteries, the devices will work in a very wide range of temperatures.

Radiologist

Radionucleotide (disambiguation)

Radiodifusão Brasil

Radiohead's eighth studio album

Radiographically

Radiohead style and songwriting

Radiomaru.com

Radioisotopes

Radioisotope therapy

Radiogram (message)

Radion Aksanovich Gataullin (Russian: Радио́н Аксанович Гатау́ллин; born on 23 November 1965) is a retired pole vaulter who represented the Soviet Union and later Russia. He is the 1988 Olympic silver medallist, the 1987 World bronze medallist, a two-time European champion (1990/94) and a two-time World Indoor champion (1989/93). He is also a former world indoor record holder with clearances of 6.00m and 6.02m in 1989.

Radiolocating

A radionuclide identification device (RID) is a hand-held measurement instrument for the detection and identification of radioactive substances. They are used at national borders, by the police and firefighters to localize radioactive sources and determine the radioactive substances they consist of. A RID measures gamma (photon) radiation and optionally neutron radiation. These devices are sometimes named radio-isotope identifying devices (RIID) or handheld isotope identifiers.

Radiogrill

Radion Gataullin

Radiofrequency Ablation

Radioguerrilla.ro

Radiodiscus iheringi is a species of small air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Charopidae. This species was discovered and described by César Marie Félix Ancey as Stephanoda iheringi in 1899. Fonseca and Thomé (1995) recombined it to Radiodiscus iheringi (Ancey, 1899) while they accidentally synonymized it with a newly created name Radiodiscus bolachaensis. Saldago and Coelho (2003) clarified the situation: Endodonta iheringi Thiele, 1927 is a synonym for Fonseca & Thomé, 1995.

Radiolicious

The radiographic supporting bone index (RSBI) is a clinical index that allows dentists to measure facial alveolar bone in the horizontal or axial plane. It enables orthodontists and dentists placing dental implants, or completing esthetic dentistry, to accurately determine the amount of facial alveolar bone available before initiating treatment. Prior to the development of this index, orthodontists and dentists faced a serious risk of inducing iatrogenic gum recession following treatment.

Radiopark

Radiology technician

Radiofar

Radiolab list of episodes

Radionics

Radiology Associates Field at Jackie Robinson Ballpark

Radiohjälpen

Radionuclide angiocardiography

Radiolocation land station

Radiofrequency ablation (RFA) is a medical procedure in which part of the electrical conduction system of the heart, tumor or other dysfunctional tissue is ablated using the heat generated from medium frequency alternating current (in the range of 350–500 kHz). RFA is generally conducted in the outpatient setting, using either local anesthetics or conscious sedation anesthesia. When it is delivered via catheter, it is called radiofrequency catheter ablation. Two important advantages of radio frequency current (over previously used low frequency AC or pulses of DC) are that it does not directly stimulate nerves or heart muscle and therefore can often be used without the need for general anesthetic, and that it is very specific for treating the desired tissue without significant collateral damage. Documented benefits have led to RFA becoming widely used during the 21st century. RFA procedures are performed under image guidance (such as X-ray screening, CT scan or ultrasound) by an interventional pain specialist (such as an anesthesiologist), interventional radiologist, otolaryngologists, a gastrointestinal or surgical endoscopist, or a cardiac electrophysiologist, a subspecialty of cardiologists.

Radiolocation mobile station

Radiopacity

Radiopaedia

Radionuclide identification device

Radiohuset ("the radio house") in Östermalm, Stockholm, is the main headquarters building of Sveriges Radio (SR). Located on Oxstiernsgatan in the Förrådsbacken district, it stands next to Sveriges Television's TV-huset and close to Filmhuset, the headquarters of the Swedish Film Institute. Also nearby is the popular open-air recreational area known as Gärdet. Programmes produced at Radiohuset are broadcast throughout Sweden on SR's four national radio channels, P1, P2, P3, and P4, and also feature in the multi-lingual output of SR International – Radio Sweden (P6). In 2008 SR's local station in the capital, Radio Stockholm (today with two channels, known as P4 Radio Stockholm and P5 STHLM), moved to Radiohuset from its previously separate studios in Kungsholmen. The building was first planned in 1955, to designs prepared by the architects Erik Ahnborg and Sune Lindström. Construction work began in 1958 and the official opening took place on 22 September 1962.

Radioluminescent paint

A radionuclide cisternogram is a medical imaging study which involves injecting a radionuclide by lumbar puncture (spinal tap) into a patient's cerebral spinal fluid (CSF) to determine if there is abnormal CSF flow within the brain and spinal canal which can be altered by hydrocephalus, Arnold–Chiari malformation, syringomyelia, or an arachnoid cyst. It may also evaluate a suspected leak (also known as a CSF fistula) from the CSF cavity into the nasal cavity. A leak can also be confirmed by the presence of beta-2 transferrin in fluid collected from the nose before this more invasive procedure is performed.

Radiogoniometer

Radiolocating is the process of finding the location of something through the use of radio waves. It generally refers to passive uses, particularly radar—as well as detecting buried cables, water mains, and other public utilities. It is similar to radionavigation, but radiolocation usually refers to passively finding a distant object rather than actively one's own position. Both are types of radiodetermination. Radiolocation is also used in real-time locating systems (RTLS) for tracking valuable assets.

Radionics (also called electromagnetic therapy (EMT)) is a form of alternative medicine that claims disease can be diagnosed and treated by applying electromagnetic radiation (EMR), such as radio waves, to the body from an electrically powered device. It is similar to magnet therapy which also applies EMR to the body, but using a magnet that generates a static electromagnetic field. The concept behind radionics originated in the early 1900s with Albert Abrams (1864–1924), who became a millionaire by leasing radionic machines which he designed himself. Radionics contradicts the principles of physics and biology and, as such, is widely considered pseudoscientific. The United States Food and Drug Administration does not recognize any legitimate medical uses for radionic devices. Several systematic reviews have shown radionics is no more effective than placebo and falls into the category of pseudoscience.

Radioisotope rocket

Radioelectron. Commun. Syst.

Radiodiscus compactus is a species of small air-breathing land snail, a terrestrial gastropod mollusk in the family Charopidae. This species is endemic to Brazil.

Radioland Murders is a 1994 comedy mystery film directed by Mel Smith and co-written and produced by George Lucas. Radioland Murders is set in the 1939 atmosphere of old-time radio and pays homage to the screwball comedy films of the 1930s. The film tells the story of writer Roger Henderson trying to settle relationship issues with his wife while dealing with a whodunit murder mystery in a radio station. The film stars an ensemble cast, including Brian Benben, Mary Stuart Masterson, Scott Michael Campbell, Michael Lerner and Ned Beatty. Radioland Murders also features numerous small roles and cameo appearances, including Michael McKean, Bobcat Goldthwait, Jeffrey Tambor, Christopher Lloyd, George Burns (in his final film appearance), Billy Barty and Rosemary Clooney. George Lucas began development for the film in the 1970s, originally attached as director for Willard Huyck and Gloria Katz's script. Universal Pictures commenced pre-production and both Steve Martin and Cindy Williams had already been approached for the two leads before Radioland Murders languished in development hell for over 20 years. In 1993, Lucas told Universal that advances in computer-generated imagery from Industrial Light & Magic (owned by Lucasfilm), particularly in digital mattes, would help bring Radioland Murders in for a relatively low budget of about $10 million, which eventually rose to $15 million. Mel Smith was hired to direct and filming lasted from October to December 1993. Radioland Murders was released on October 21, 1994, to negative reviews from critics and bombed at the box office, only grossing $1.37 million in US totals.

Radiophone

Radiofilum

Radioplane

Radion (disambiguation)

Radionuclide angiograms

Radiolarian

Radion the Atomic Man

Radiolucent

Radiohead (band)

In geometry, a radiodrome is the pursuit curve followed by a point that is pursuing another linearly-moving point. The term is derived from the Greek words "ῥάδιος" (easier) and "δρόμος" (running). The classic (and best-known) form of a radiodrome is known as the "dog curve"; this is the path a dog follows when it swims across a stream with a current after food it has spotted on the other side. Because the dog drifts downwards with the current, it will have to change its heading; it will also have to swim further than if it had computed the optimal heading. This case was described by Pierre Bouguer in 1732.

Radiography, panoramic

Radionuclide ventriculography, a type of cardiac ventriculography, is a form of nuclear imaging, where a gamma camera is used to create an image following injection of radioactive material, usually Technetium-99m (99mTc) labeled red blood cells. In radionuclide ventriculography, the radionuclide has the property of circulating through the cardiac chambers, availing for studies of the pumping function of the heart. In contrast, in myocardial perfusion imaging, the radionuclide is taken up by the myocardial cells, making its presence correlating with myocardial perfusion or viability of the cells.

Radiogram (medicine)

Radiologic hazards

The Radiometer Assessment using Vertically Aligned Nanotubes (RAVAN) was an experiment launched into low-Earth orbit on November 11, 2016. RAVAN's goal is to test new technologies that help measure Earth’s radiation imbalance, which is the difference between the amount of energy received from the Sun that reaches Earth and the amount that is reflected and emitted back into the outer space. Theoretical estimates of the difference in the thermal energy is estimated to be at less than one percent.

Radionuclide imaging

Radiohead Kid A

Radiographic sign

Radiologic technician

The Radiological Society of North America (RSNA) is an international society of radiologists, medical physicists and other medical professionals with more than 54,000 members across the globe.Based in Oak Brook, Illinois, RSNA was established in 1915. RSNA hosts one of the world’s largest annual medical meetings, a week-long event which starts the last Sunday of November in Chicago. The society also publishes two peer-reviewed journals: Radiology, offering radiology research and reviews, and RadioGraphics, dedicated to continuing education in radiology.

Radiophysical Research Institute (NIRFI)

Radiodiscus patagonicus

Radioopaque

Radiologic signs

Radioeco.it

Radiodiscus iheringi

Radiografia de una mentira

Radioisotope generator

Radiometric

Radiometer

Radiofrequency MASINT is one of the six major disciplines generally accepted to make up the field of Measurement and Signature Intelligence (MASINT), with due regard that the MASINT subdisciplines may overlap, and MASINT, in turn, is complementary to more traditional intelligence collection and analysis disciplines such as SIGINT and IMINT. MASINT encompasses intelligence gathering activities that bring together disparate elements that do not fit within the definitions of Signals Intelligence (SIGINT), Imagery Intelligence (IMINT), or Human Intelligence (HUMINT). According to the United States Department of Defense, MASINT is technically derived intelligence (excluding traditional imagery IMINT and signals intelligence SIGINT) that – when collected, processed, and analyzed by dedicated MASINT systems – results in intelligence that detects, tracks, identifies, or describes the signatures (distinctive characteristics) of fixed or dynamic target sources. MASINT was recognized as a formal intelligence discipline in 1986. See Measurement and Signature Intelligence for an overview of the discipline and its unifying principles. As with many branches of MASINT, specific techniques may overlap with the six major conceptual disciplines of MASINT defined by the Center for MASINT Studies and Research, which divides MASINT into Electro-optical, Nuclear, Geophysical, Radar, Materials, and Radiofrequency disciplines.

Radionucleotide

Radioisotope Production Facility

Radiological Dispersion Device

Radiometric age dating

Radiolarians

Radiofacsimile

Radiolinja was a Finnish GSM operator founded on September 19, 1988. On March 27, 1991, the world's first GSM phone call was made on Radiolinja's network. The network was opened for commercial use on July 1, 1991. Radiolinja's slogan was So that Finns could talk more; it became famous through an advertising campaign. Currently the company is known as Elisa.

Radioiodine scan

Radiodrome

Radiolarian series

Radion Gačanin

Radioisotope thermoelectric generators

Radiology Information System

Radiographic testing

Radiographic classifications of osteoarthritis

Radion (given name)

Radiolinja was a Finnish GSM operator founded on September 19, 1988. On March 27, 1991, the world's first GSM phone call was made on Radiolinja's network. The network was opened for commercial use on July 1, 1991. Radiolinja's slogan was So that Finns could talk more; it became famous through an advertising campaign. When Radiolinja launched, Finland's incumbent mobile operator, Telecom Finland (later changed to Sonera, now part of Sweden's TeliaSonera) was already operating a first generation mobile network on the NMT technology. Thus, Radiolinja's launch was also the start of mobile telecom competition in Europe. Several global firsts happened on the Radiolinja network, including the world's first person-to-person SMS text message, sent in 1993; the world's first fixed-mobile service bundle, launched in 1996; and the world's first paid downloadable mobile content, a ringtone, in 1998. Radiolinja's original investors included the Finnet Group, a consortium composed of a number of Finnish corporations and local telephone companies. In the mid-1990s, Elisa (known then as Helsinki Telephone Ltd) began acquiring a greater stake in Radiolinja, ultimately leading to the mergers of Radiolinja, Radiolinja Origo, and Elisa. At this point, Elisa had also acquired some of Radiolinja's other major stakeholders, such as Soon Communications (previously Tampere Telephone Plc and before that Tampere Telephone Cooperative). Currently the company is known as Elisa.

Radiogenesis

Radiologic imaging

Radiophobia

Radioembolization

Radioisotopic Thermoelectric Generator

Radiola is a compilation album by Skank released in 2004, containing recent hits (all songs are from Maquinarama onward) and four new songs ("Um Mais Um", "Onde Estão?", "Vamos Fugir" and "I Want You", a Bob Dylan cover that had been previously recorded in a Portuguese version called "Tanto", released on the band's first album). The cover art is by the Clayton Brothers.

Radiological & Environmental Sciences Laboratory

Radiofax, also known as weatherfax (portmanteau word from the words "weather facsimile") and HF fax (due to its common use on shortwave radio), is an analogue mode for transmitting monochrome images. It was the predecessor to slow-scan television (SSTV). Prior to the advent of the commercial telephone line "fax" machine, it was known, more traditionally, by the term "radiofacsimile". The cover of the regular NOAA publication on frequencies and schedules states "Worldwide Marine Radiofacsimile Broadcast Schedules". Facsimile machines were used in the 1950s to transmit weather charts across the United States via land-lines first and then internationally via HF radio. Radio transmission of weather charts provides an enormous amount of flexibility to marine and aviation users for they now have the latest weather information and forecasts at their fingertips to use in the planning of voyages. Radiofax relies on facsimile technology where printed information is scanned line by line and encoded into an electrical signal which can then be transmitted via physical line or radio waves to remote locations. Since the amount of information transmitted per unit time is directly proportional to the bandwidth available, then the speed at which a weather chart can be transmitted will vary depending on the quality of the media used for transmission. Today radiofax data is available via FTP downloads from sites in the Internet such as the ones hosted by the National Oceanic and Atmospheric Administration (NOAA). Radiofax transmissions are also broadcast by NOAA from multiple sites in the country at regular daily schedules. Radio weatherfax transmissions are particularly useful to shipping, where there are limited facilities for accessing the Internet. The term weatherfax was coined after the technology that allows the transmission and reception of weather charts (surface analysis, forecasts, and others) from a transmission site (usually the meteorological office) to a remote site (where the actual users are).

Radionuclide Identification Device

Radiohead the bends

Radiolocation-satellite service

Radiolinja

Radioimmunoconjugate

Radiography

Radiofrequency electromagnetic fields

Radiological contamination

Radionomy

Radionuclide angiography is an area of nuclear medicine which specialises in imaging to show the functionality of the right and left ventricles of the heart, thus allowing informed diagnostic intervention in heart failure. It involves use of a radiopharmaceutical, injected into a patient, and a gamma camera for acquisition. A MUGA scan (multigated acquisition) involves an acquisition triggered (gated) at different points of the cardiac cycle. MUGA scanning is also called equilibrium radionuclide angiocardiography, radionuclide ventriculography (RNVG), or gated blood pool imaging, as well as SYMA scanning (synchronized multigated acquisition scanning). This mode of imaging uniquely provides a cine type of image of the beating heart, and allows the interpreter to determine the efficiency of the individual heart valves and chambers. MUGA/Cine scanning represents a robust adjunct to the now more common echocardiogram. Mathematics regarding acquisition of cardiac output (Q) is well served by both of these methods as well as other inexpensive models supporting ejection fraction as a product of the heart/myocardium in systole. The advantage of a MUGA scan over an echocardiogram or an angiogram is its accuracy. An echocardiogram measures the shortening fraction of the ventricle and is limited by the user's ability. Furthermore, an angiogram is invasive and, often, more expensive. A MUGA scan provides a more accurate representation of cardiac ejection fraction.

Radionavigation land station is – according to article 1.88 of the International Telecommunication Union´s (ITU) ITU Radio Regulations (RR) – defined as «A radio station in the radionavigation service not intended to be used while in motion.» Each radio station shall be classified by the radicommunication service in which it operates permanently or temporarily. This station operates in a safety-of-life service and must be protected for Interferences. See also(Main articles: Radio station and Radiocommunication service)

Radiohuset ("the radio house") in Östermalm, Stockholm, is the main headquarters building of Sveriges Radio (SR). Located on Oxstiernsgatan in the Förrådsbacken district, it stands next to Sveriges Television's TV-huset and close to Filmhuset, the headquarters of the Swedish Film Institute. Also nearby is the popular open-air recreational area known as Gärdet. The building was first planned in 1955, to designs prepared by the architects Erik Ahnborg and Sune Lindström. Construction work began in 1958 and the official opening took place on 22 September 1962.

Radiopetti

Radiologically inserted gastrostomy

Radioland Murders is a 1994 comedy mystery film directed by Mel Smith and co-written and produced by George Lucas. Radioland Murders is set in the 1939 atmosphere of old-time radio and pays homage to the screwball comedy films of the 1930s. The film tells the story of writer Roger Henderson trying to settle relationship issues with his wife while dealing with a whodunit murder mystery in a radio station. The film stars an ensemble cast, including Brian Benben, Mary Stuart Masterson, Scott Michael Campbell, Michael Lerner and Ned Beatty. Radioland Murders also features numerous small roles and cameo appearances, including Michael McKean, Bobcat Goldthwait, Jeffrey Tambor, Christopher Lloyd, George Burns (in his final film appearance), Billy Barty and Rosemary Clooney.

Radiographic supporting bone index

Radiological weapon

Radiola (disambiguation)

Radionics Radio

Radiofrequency MASINT

The Radiological Protection Institute of Ireland (RPII), An Institiúid Éireannach um Chosaint Raideolaíoch, was an independent public body in Ireland under the aegis of the Department of Communications, Climate Action and Environment. The RPII was established in 1992 under the Radiological Protection Act 1991, which conferred on the RPII a broad remit in relation to radiological protection in Ireland. The RPII was merged with the Environmental Protection Agency (EPA) in August 2014, as part of the Irish Government's Public Sector Reform Plan. RPII's functions are now carried out by the Office of Radiation Protection and Environmental Monitoring within the EPA. The general functions of the ORP are:
* To provide advice to the Government, the Minister for the Environment, Community and Local Government and other Ministers on matters relating to radiological safety.
* To provide information to the public on any matters relating to radiological safety which the ORP deems fit.
* To maintain and develop a national laboratory for the measurement of levels of radioactivity in the environment, and to assess the significance of these levels for the Irish population.
* To provide a personnel dosimetry and instrument calibration service for those who work with ionising radiation.
* To control by licence the custody, use, manufacture, importation, transportation, distribution, exportation and disposal of radioactive substances, irradiating apparatus and other sources of ionising radiation.
* To assist in the development of national plans for emergencies arising from nuclear accidents and to act in support of such plans.
* To provide a radioactivity measurement and certification service.
* To prepare codes and regulations for the safe use of ionising radiation.
* To carry out and promote research in relevant fields.
* To monitor developments abroad relating to nuclear installations and radiological safety generally, and to keep the Government informed of their implications for Ireland.
* To co-operate with the relevant authorities in other states and with appropriate international organisations.
* To represent the State on international bodies.
* To be the competent authority under international conventions on nuclear matters. The RPII was the successor to the Nuclear Energy Board which was formally wound up by the Radiological Protection Act 1991.

Radion

Radiographic findings in eFAST

Radiolicious was an internet radio service created by MySimBook, based in Lafayette, Louisiana. Users were able to search and listen to terrestrial radio stations. While listening, users are offered the ability to send in song requests to DJ's, enter contests, bookmark favorite stations, post wall comments, share the station with friends, and access social networks such as Facebook. The service is free to users and is supported by advertisements and barter from participating radio stations. On October 8, 2008, Radiolicious launched a mobile version of their software available on the Apple iPhone and iPod Touch through the iTunes App Store. In 2009, Citadel Media, formerly ABC Radio Networks, signed a sales and marketing agreement with MySimBook to sell and market Radiolicious to their current affiliates. As of June, 2012, the Radiolicious app does not function on portable devices, its listing has been removed from Apple's iTunes Store, and the company's web site is no longer available online. Many of the stations that used to use Radiolicious have moved to the TuneIn, iHeartRadio and the lesser known RadioPup apps allowing them to continue to be streamed on portable devices.

Radiometer (company)

Radiographic contrast agent

Radiological

Radiofrequency shielding

Radiomedia

Radioisotope dose calibrator

Radiodiscus iheringi Smith, 1881 (authority error)

Radiophysics

Radiophonic Music

Radiologic shielding

Radiofrequency energy harvesting system

Radiological protection

Radiojazzgruppen

Radiokören

Radiofrequency thermocoagulation is a thermal pain treatment procedure. For example, percutaneous intradiscal radiofrequency thermocoagulation (PIRFT) involves the placement of an electrode or catheter into the intervertebral disc and applying an alternating radiofrequency current.

Radiology Information System (RIS)

Radiomaryja

Hexagone is a composition and production by Jean Michel Jarre, originally conceived, in its electronic version, as the audio dressing for the France Info radio station. Composer Bruno Mantovani orchestrated the 99 parts of Hexagone, and the recording of this orchestration was released as Radiophonie Vol. 9 in a limited edition (2000 copies) by Radio France on 13 January 2017.

Radiolarium

Radiohjalpen

The Radiological Protection Institute of Ireland (RPII), An Institiúid Éireannach um Chosaint Raideolaíoch, was an independent public body in Ireland under the aegis of the Department of Communications, Climate Action and Environment. The RPII was established in 1992 under the Radiological Protection Act 1991, which conferred on the RPII a broad remit in relation to radiological protection in Ireland. The RPII was merged with the Environmental Protection Agency (EPA) in August 2014, as part of the Irish Government's Public Sector Reform Plan. RPII's functions are now carried out by the Office of Radiation Protection and Environmental Monitoring within the EPA.

Radiohuset (Stockholm)

Radiological fallout

Radionuclide cisternogram

Radiological signs

Radioisotope thermal generator

Radiological sign

Radionucleotide cisternogram

The Radioplane Company was an American aviation company that produced drone aircraft primarily for use as gunnery targets. During World War II, they produced over 9,400 of their Radioplane OQ-3 model, a propeller-powered monoplane, making it the most-used target aircraft in the US. In the post-World War II era they introduced their Radioplane BTT series, which was produced for years and eventually reached almost 60,000 examples. They also produced several radio control and self-guided missiles, the largest being the GAM-67 Crossbow, which didn't enter service. The company was purchased by Northrop Corporation in 1952, and moved to one of Northrop's factories in 1962. One of the last projects carried out at the original Radioplane factory in Van Nuys, California, was the construction of the

Radioisotope piezoelectric generator

Radiofrequency ablation

Radiohòla (literal: the radio cave) is a natural shelter used by the Norwegian resistance during the Second World War. It served as a hiding place for a radio that brought news from the British, during a time of which radios were banned and the German occupants arrested and prosecuted those found in possession of one.

Radioisotopic labelling

Radiology department

Radionuclide ventriculography

Radioman

The Radiometer Assessment using Vertically Aligned Nanotubes (RAVAN) was an experiment launched into low-Earth orbit on November 11, 2016. RAVAN's goal is to test new technologies that help measure Earth’s radiation imbalance, which is the difference between the amount of energy received from the Sun that reaches Earth and the amount that is reflected and emitted back into the outer space. Theoretical estimates of the difference in the thermal energy is estimated to be at less than one percent. The experiment was designed by Johns Hopkins University's Applied Physics Laboratory, in collaboration with NASA’s Jet Propulsion Laboratory.

Radiological imaging

Radioisotope production

Radiological hazard (disambiguation)

Radioisotope scanning

Radiogaalkacyo.com

Radiological protection of patients

Radiojournalist

Radioiodinated serum albumin, abbreviated RISA, is a marker used in identifying blood plasma via the dilution method in renal physiology.

Radiomás is the state radio network of the Mexican state of Veracruz. It broadcasts on five FM transmitters in the state with most content originating from the state capital in Xalapa.

Radioordningen

Radiofax, also known as weatherfax (portmanteau word from the words "weather facsimile") and HF fax (due to its common use on shortwave radio), is an analogue mode for transmitting monochrome images. It was the predecessor to slow-scan television (SSTV). Prior to the advent of the commercial telephone line "fax" machine, it was known, more traditionally, by the term "radiofacsimile". The cover of the regular NOAA publication on frequencies and schedules states "Worldwide Marine Radiofacsimile Broadcast Schedules".

Radiophoto

Radiodifusao Portuguesa

Radioisotope Thermoelectric Generator

RadioIO (pronounced “radio eye-oh”) is a New York-based internet radio and streaming media service owned by RadioIO, Inc. (RAIO) started in 1998. It was the first Internet radio company to be publicly traded. RadioIO broadcasts over 100 music and talk-show hosted channels. RadioIO's music programming ranges from genre channels such as “Classic Rock” and “Today’s Pop” to formats such as “Ambient” and “Reggae.” RadioIO music channels are managed by “StreamHosts,” with FJ Forest (Musical Starstreams), Robert Goodman (DJ/producer), Doug Wendt (Midnight Dread), RadioIO's internet radio service can be found at its website or via media streaming devices. RadioIO's Business Music, an internet streaming music service, was launched in 2008 as IO Business Music (www.iobusinessmusic.com), a wholly owned subsidiary of RadioIO, Inc. It provides in-store music and offers branded as well as non-branded business music channels carrying local and national advertising. It is used by many national chains such as quick service restaurants, spas, hospitals, airports, hotels, casinos, auto dealers, and specialty retailers.

Radionerva is a genus of moth in the family Gelechiidae. It contains the species Radionerva collecta, which is found in Zimbabwe. The wingspan is 8–9 mm. The forewings are whitish-grey closely speckled with dark fuscous. The hindwings are grey.

Radioimmunodetection is an imaging technique using radiolabeled antibodies.

Radiophobia is a fear of ionizing radiation. Given that significant doses of radiation are harmful, even deadly (i.e. radiation-induced cancer, and acute radiation syndrome), every threat of the radiation exposure may cause significant fear. The term is also used to describe the opposition to the use of nuclear technology (i.e. nuclear power) arising from concerns disproportionately greater than actual risks would merit.

Radioeco

Radiookapi.net

Radiolucency

Radiolarians 2

Radiological attack

Radionuclide angiography

Radiophonic Workshop

Radion Aksanovich Gataullin

In British English, a radiogram is a piece of furniture that combined a radio and record player. The word radiogram is a portmanteau of radio and gramophone. The corresponding term in American English is console. As valve radio development ended in the late 1960s and transistors began to take over, radiograms started to become obsolete. By the late 1970s, they had been replaced by more compact equipment, such as the hi-fi and the music centre.
In British English, a radiogram is a piece of furniture that combined a radio and record player. The word radiogram is a portmanteau of radio and gramophone. The corresponding term in American English is console. Radiograms reached their peak of popularity in the post-war era, supported by a rapidly growing interest in records. Originally they were made of polished wood to blend with the furniture of the 1930s, with many styled by the leading designers of the day. An expensive instrument of entertainment for the house, fitted with a larger loudspeaker than the domestic radio, the radiogram soon began to develop features such as the record autochanger, which would accept six or seven records and play them one after another. Certain recordings could be ordered as a box set which would combine the recorded piece in order, to suit an autochanger set-up. In the 1940s and 1950s, sales of the radiogram, coupled with the then-new F.M. waveband, and the advent of the 45 rpm single and the LP record, meant that many manufacturers considered the radiogram to be more important than the fledgling television set sales. Later models took on the modern lines, piano gloss finish and plastic and gilt trim of the 1960s. Stereogram versions became available to take advantage of stereo records. As valve radio development ended in the late 1960s and transistors began to take over, radiograms started to become obsolete. By the late 1970s, they had been replaced by more compact equipment, such as the hi-fi and the music centre. Since radiograms were manufactured in such huge numbers they are not as rare or valuable as TV sets or table radios from the same period. An exception to this are models from certain manufacturers which have become collectable such as , Dynatron, Blaupunkt, Braun, and SABA.

Radiopetti (Radio Set)

Radiologic

Radiogenic isotopes

Radiographers

Radionuclides associated with hydraulic fracturing

Radion Gacanin

Radioplane Company

A radiogenic nuclide is a nuclide that is produced by a process of radioactive decay. It may itself be radioactive (a radionuclide) or stable (a stable nuclide). Radiogenic nuclides (more commonly referred to as radiogenic isotopes) form some of the most important tools in geology. They are used in two principal ways: 1.
* In comparison with the quantity of the radioactive 'parent isotope' in a system, the quantity of the radiogenic 'daughter product' is used as a radiometric dating tool (e.g. uranium–lead geochronology). 2.
* In comparison with the quantity of a non-radiogenic isotope of the same element, the quantity of the radiogenic isotope is used to define its isotopic signature (e.g. 206Pb/204Pb). This technique is discussed in more detail under the heading isotope geochemistry.

Radiofax

Radiological dispersion device

Radiometrically dated

Radiogram (device)

Radionuclide ventriculography, a type of cardiac ventriculography, is a form of nuclear imaging, where a gamma camera is used to create an image following injection of radioactive material, usually Technetium-99m (99mTc) labeled red blood cells. In radionuclide ventriculography, the radionuclide has the property of circulating through the cardiac chambers, availing for studies of the pumping function of the heart. In contrast, in myocardial perfusion imaging, the radionuclide is taken up by the myocardial cells, making its presence correlating with myocardial perfusion or viability of the cells. Radionuclide ventriculography is done to evaluate coronary artery disease (CAD), valvular heart disease, congenital heart diseases, cardiomyopathy, and other cardiac disorders. It exposes patients to less radiation than do comparable chest x-ray studies. However, the radioactive material is retained in the patient for several days after the test, during which sophisticated radiation alarms may be triggered, such as in airports. Radionuclide ventriculography has largely been replaced by echocardiography, which is less expensive, and does not require radiation exposure. Radionuclide ventriculography gives a much more precise measurement of left ventricular ejection fraction (LVEF) than a transthoracic echocardiogram (TTE). Transthoracic echocardiogram is highly operator dependant, therefore radionuclide ventriculography is a more reproducible measurement of LVEF. Its primary use today is in monitoring cardiac function in patients receiving certain chemotherapeutic agents (anthracyclines: doxorubicin or daunorubicin) which are cardiotoxic. The chemotherapy dose is often determined by the patient's cardiac function. In this setting, a much more accurate measurement of ejection fraction, than a transthoracic echocardiogram can provide, is necessary.

Radiometric calibration

Radiographic anatomy

Radioiasi.ro

Radiojoyalukkas

Radiophys Quantum Electron

Radiodread

Radiofar (Serbian Cyrillic: Радиофар) is a suburban neighborhood of Belgrade, the capital of Serbia. It is located in the Belgrade's municipality of Surčin. Radiofar, actually a sub-neighborhood of Surčin, is a settlement near the Belgrade's Nikola Tesla Airport, 10 km west of downtown Belgrade. It is located in the vicinity the Belgrade-Zagreb highway, close to the airport's control tower. This is how the settlement got its name ('radiofar' = aerodrome beacon).

Radiopharmaceuticals

radioeco.it

Radiomaria.org

The Radiological Society of North America (RSNA) is an international society of radiologists, medical physicists and other medical professionals with more than 54,000 members across the globe.Based in Oak Brook, Illinois, RSNA was established in 1915. RSNA hosts one of the world’s largest annual medical meetings, a week-long event which starts the last Sunday of November in Chicago. The society also publishes two peer-reviewed journals: Radiology, offering radiology research and reviews, and RadioGraphics, dedicated to continuing education in radiology. The Society also develops and offers informatics-based software solutions in support of a universal electronic health record, sponsors research to advance quantitative imaging biomarkers, and conducts outreach to enhance education in developing nations. Through its Research & Education (R&E) Foundation, RSNA provides millions of dollars in funding to investigators. The presidency of the RSNA is held as a one-year term. The current president is Ronald L. Arenson, MD.

Radioiodinated serum albumin

Radiola was a privately owned French radio station which broadcast under that name from 6 November 1922 until 28 March 1924 with the intention of promoting the sale of Radiola radio receivers, which were manufactured by the Société française radio-électrique (SFR), a subsidiary of the Compagnie générale de la télégraphie sans fil (CSF). The Paris-based station made its first test transmissions on 26 June 1922 and its first news bulletin was broadcast on 6 January 1923. Radiola's chief announcer was Marcel Laporte.

Radiofabrik

Radioisotope heater units

Radiological Society of North America

Radioecology

Radiohead Rewrite

Radiology information systems

Radiodifusao Brasil

Radioisotope thermal generators

The Radioplane Company was an American aviation company that produced drone aircraft primarily for use as gunnery targets. During World War II, they produced over 9,400 of their Radioplane OQ-3 model, a propeller-powered monoplane, making it the most-used target aircraft in the US. In the post-World War II era they introduced their Radioplane BTT series, which was produced for years and eventually reached almost 60,000 examples. They also produced several radio control and self-guided missiles, the largest being the GAM-67 Crossbow, which didn't enter service. The company was purchased by Northrop Corporation in 1952, and moved to one of Northrop's factories in 1962. One of the last projects carried out at the original Radioplane factory in Van Nuys, California, was the construction of the Gemini Paraglider.