Articles related to "Isotopes"
What are Medical Isotopes Used For?
Nuclear medicine includes technology for rapid diagnosis and targeted treatment of cancers. When there is a shortage of isotopes, patients lose advanced medical care.
cancer • radiation oncology • radioisotopes • radioactive isotopes • thyroid
Nuclear medicine includes technology for rapid diagnosis and targeted treatment of cancers. When there is a shortage of isotopes, patients lose advanced medical care.
cancer • radiation oncology • radioisotopes • radioactive isotopes • thyroid
Absolute Time 1
Through research, physicists and geologists have determined that certain isotopes of elements will decay into new elements. Using the decay rate, and knowing the half-life of the isotope, a geologist can date a sample of rock and determine its age.
geology • geophysics • isotopes • half-life • uranium
Through research, physicists and geologists have determined that certain isotopes of elements will decay into new elements. Using the decay rate, and knowing the half-life of the isotope, a geologist can date a sample of rock and determine its age.
geology • geophysics • isotopes • half-life • uranium
Absolute Time 2
Radiometric dating is a complex method for dating the rocks of the earth. There are only a few types of rock that can be dated, and potential problems that need to be avoided to give an accurate date for the rock sample.
geology • geophysics • radiometric • time • isotope
Radiometric dating is a complex method for dating the rocks of the earth. There are only a few types of rock that can be dated, and potential problems that need to be avoided to give an accurate date for the rock sample.
geology • geophysics • radiometric • time • isotope
Medical Isotope Shortage
Tens of thousands of cancer and heart patients worldwide are left without diagnosis or treatment by Canadian government decision.
cancer care • cancer diagnosis • nuclear medicine • medical isotopes • mds
Tens of thousands of cancer and heart patients worldwide are left without diagnosis or treatment by Canadian government decision.
cancer care • cancer diagnosis • nuclear medicine • medical isotopes • mds
Gilbert Newton Lewis - Teacher and Researcher
Gilbert Newton Lewis is known to all chemistry students through Lewis Symbols. This dedicated teacher and researcher mentored twenty Nobel laureates during this more than 30 year tenure at the University of California in Berkeley.
lewis • lewis symbols • thermodynamics • bonding theory • covalent
Gilbert Newton Lewis is known to all chemistry students through Lewis Symbols. This dedicated teacher and researcher mentored twenty Nobel laureates during this more than 30 year tenure at the University of California in Berkeley.
lewis • lewis symbols • thermodynamics • bonding theory • covalent
Radiation Oncology
Great advances in radiation oncology have been made in recent years. This cancer treatment is now more effective and less harmful than in previous years.
radiation oncology • x-rays • gamma rays • photons • isotopes
Great advances in radiation oncology have been made in recent years. This cancer treatment is now more effective and less harmful than in previous years.
radiation oncology • x-rays • gamma rays • photons • isotopes
Conodonts Clue to Sea Diversity
Conodonts - microscopic toothlike fossils - have demonstrated the link between the oceans cooling and the sudden expansion of marine life almost 500 million years ago.
conodonts clue to sea diversity • fossils show why oceanic life forms bloomed • dr julie trotter’s study of oxygen isotopes in con • dr julie trotter’s paper on the expansion of marin • cooling oceans led to exploding biodiversity
Conodonts - microscopic toothlike fossils - have demonstrated the link between the oceans cooling and the sudden expansion of marine life almost 500 million years ago.
conodonts clue to sea diversity • fossils show why oceanic life forms bloomed • dr julie trotter’s study of oxygen isotopes in con • dr julie trotter’s paper on the expansion of marin • cooling oceans led to exploding biodiversity
Applications of Radioisotopes
The closing of a Canadian nuclear plant may leave many wondering why nuclear imaging is necessary for health.
radioisotopes • nuclear imaging • medical diagnoses • positrons • positron emission tomography
The closing of a Canadian nuclear plant may leave many wondering why nuclear imaging is necessary for health.
radioisotopes • nuclear imaging • medical diagnoses • positrons • positron emission tomography
Dating Fossils II: Radiometric Dating
Radiometric dating is a more precise type of dating used on fossils.
radiometric dating • sedimentary rock • relative dating
Radiometric dating is a more precise type of dating used on fossils.
radiometric dating • sedimentary rock • relative dating
Origins of Volcanism
Volcanism requires both a source of heat and something to melt. The planet provides the material for melting and the heat comes from a variety of sources.
sources of volcanism • sources of heat • tidal energy • core formation • short-lived radioactivity
Volcanism requires both a source of heat and something to melt. The planet provides the material for melting and the heat comes from a variety of sources.
sources of volcanism • sources of heat • tidal energy • core formation • short-lived radioactivity
Elephants' Tails Tell Stories of Their Diets
Details of elephants diet can be gauged from their tail by using an innovative technique developed by Professor Thure Cerling and associates from University of Utah.
elephant diet.elephant tail • latest research.professor thure cerling • buffalo springs national reserves • competition with cattle • analysis of carbon incorporated in tail hair from
Details of elephants diet can be gauged from their tail by using an innovative technique developed by Professor Thure Cerling and associates from University of Utah.
elephant diet.elephant tail • latest research.professor thure cerling • buffalo springs national reserves • competition with cattle • analysis of carbon incorporated in tail hair from
Facts About the Atom
Atoms are an intermediary step between fundamental particles and the material objects that make up our large scale world. This is a brief primer on the atom.
atom • nuclear forces • element 117 • hydrogen plasma • ununoctium
Atoms are an intermediary step between fundamental particles and the material objects that make up our large scale world. This is a brief primer on the atom.
atom • nuclear forces • element 117 • hydrogen plasma • ununoctium
Tour the Secret City of Oak Ridge
Hop on a bus at Tennessee's American Museum of Science and Energy and travel back to WW II, to the Cold War, and on to today's world-class sub-atomic research facilities.
secret city bus tour • oak ridge tennessee • history of the atomic bomb • graphite nuclear reactor • calutron
Hop on a bus at Tennessee's American Museum of Science and Energy and travel back to WW II, to the Cold War, and on to today's world-class sub-atomic research facilities.
secret city bus tour • oak ridge tennessee • history of the atomic bomb • graphite nuclear reactor • calutron
Radiation Therapy
Description of Radiation Therapy. This treatment is used for all patients receiving lumpectomies. Radiation is sometimes used prior to or in lieu of surgery. Very few patients receive radiation with mastectomies, but it can happen.
breast cancer • radiation therapy • radiation
Description of Radiation Therapy. This treatment is used for all patients receiving lumpectomies. Radiation is sometimes used prior to or in lieu of surgery. Very few patients receive radiation with mastectomies, but it can happen.
breast cancer • radiation therapy • radiation
Modern Radiation Therapy
Long useful for treating various cancers, radiation therapy is also notorious for causing undesirable side effects. Advances in technology are improving its reputation.
modalities of radiation therapy • methods of radiation therapy • radiation therapy techniques • external beam radiation • stereotactic radiation therapy
Long useful for treating various cancers, radiation therapy is also notorious for causing undesirable side effects. Advances in technology are improving its reputation.
modalities of radiation therapy • methods of radiation therapy • radiation therapy techniques • external beam radiation • stereotactic radiation therapy
Comet Tail with Glycine Amino Acid Amazes All
The search for life beyond planet earth never ceases to delight and amaze. Scientists probe outer space with powerful equipment and strive to find signs of new life.
telescopic views of comets and comet debris fields • telescopes are excellent scientifc tools • life in space science exploration • extraterrestrial life exploration • comet debris sampling and capture
The search for life beyond planet earth never ceases to delight and amaze. Scientists probe outer space with powerful equipment and strive to find signs of new life.
telescopic views of comets and comet debris fields • telescopes are excellent scientifc tools • life in space science exploration • extraterrestrial life exploration • comet debris sampling and capture
Feds Consider Selling AECL Stake
The Federal Government is looking to sell its stake in the Atomic Energy Of Canada Limited (AECL). The move follows a 2-year review of the company.
cause of chalk river closure • restructuring aecl • atomic energy commission of canada limited • world isotope supply • natural resources minister lisa raitt
The Federal Government is looking to sell its stake in the Atomic Energy Of Canada Limited (AECL). The move follows a 2-year review of the company.
cause of chalk river closure • restructuring aecl • atomic energy commission of canada limited • world isotope supply • natural resources minister lisa raitt
Human Bone Analysis
Human bone analysis can provide valuable information about past lives and lifestyles. However, there are limitations to the information it can provide.
human bone analysis • human skeleton • bone skeleton • bones • bone
Human bone analysis can provide valuable information about past lives and lifestyles. However, there are limitations to the information it can provide.
human bone analysis • human skeleton • bone skeleton • bones • bone
Simple Explanation of Atomic Structure
Understanding the structure of the atom is a solid foundation for the study of chemistry. This article describes the components of the atom, and how they affect chemistry
atomic structure • parts of the atom • components of the atom • how atomic structure affects chemistry • what is a proton
Understanding the structure of the atom is a solid foundation for the study of chemistry. This article describes the components of the atom, and how they affect chemistry
atomic structure • parts of the atom • components of the atom • how atomic structure affects chemistry • what is a proton
Chemistry of Martian Meteorites and Their (Possible) Fossils
How chemistry clues in meteorites provide clues to ancient life on Mars.
meteorites • martian meteorite • alh84001 • magnetite • alh84001
How chemistry clues in meteorites provide clues to ancient life on Mars.
meteorites • martian meteorite • alh84001 • magnetite • alh84001
Ice Ages
With recent discussions in the press concerning Global Warming, El Nino, and other climatic changes it is often forgotten that until around 10,000 years ago, large continent spanning ice sheets covered much of the Earth.
geology • geophysics • earth • earth science • science
With recent discussions in the press concerning Global Warming, El Nino, and other climatic changes it is often forgotten that until around 10,000 years ago, large continent spanning ice sheets covered much of the Earth.
geology • geophysics • earth • earth science • science
Surviving Radiation the Wise Woman Way
Whether you are worried about the radiation from dental x-rays, a mammogram, or fallout, here are some Wise Woman Ways to help you stay healthy.
radiation • x ray • mammogram • susun • susan
Whether you are worried about the radiation from dental x-rays, a mammogram, or fallout, here are some Wise Woman Ways to help you stay healthy.
radiation • x ray • mammogram • susun • susan
Radioactivity and Alpha Particles
Alpha particles are emitted from a radioactive substance by way of quantum tunneling and is governed by a statistical look at the strong nuclear force.
alpha radiation • alpha decay • alpha particles • what is radiation • atomic radiation
Alpha particles are emitted from a radioactive substance by way of quantum tunneling and is governed by a statistical look at the strong nuclear force.
alpha radiation • alpha decay • alpha particles • what is radiation • atomic radiation
Is Nuclear Power Green?
Green house gas emissions, fossil fuel shortages and global warming happening now, we must consider nuclear power as a viable technology for our future energy needs.
greenhouse gas • fossil fuel • global warming • nuclear energy • tidal power
Green house gas emissions, fossil fuel shortages and global warming happening now, we must consider nuclear power as a viable technology for our future energy needs.
greenhouse gas • fossil fuel • global warming • nuclear energy • tidal power
Edith Hinkley Quimby - Pioneering Teacher of Radiology
Edith Hinkley Quimby is best remembered for her work in determining the level of radiation that patients could tolerate, thereby providing early practical procedures for doctors to more safely use radiation therapy in a clinical setting.
quimby • nuclear medicine • medical physics • radioisotopes • radiology
Edith Hinkley Quimby is best remembered for her work in determining the level of radiation that patients could tolerate, thereby providing early practical procedures for doctors to more safely use radiation therapy in a clinical setting.
quimby • nuclear medicine • medical physics • radioisotopes • radiology
Lithium's Rarity in the Universe
The periodic table goes Hydrogen, Helium, Lithium, but due to its unique properties Lithium rarely enjoys the Universe's first-born status like its two older siblings.
lithium properties • early universe chemistry • lithium abundance • spallation • elements abundance in universe
The periodic table goes Hydrogen, Helium, Lithium, but due to its unique properties Lithium rarely enjoys the Universe's first-born status like its two older siblings.
lithium properties • early universe chemistry • lithium abundance • spallation • elements abundance in universe
The Neutron
The neutron is one of the most common particles of matter, and it is integral to the formation of every element other than hydrogen. Find out why.
neutron • neutrons • protons • nuclear force • residual strong force
The neutron is one of the most common particles of matter, and it is integral to the formation of every element other than hydrogen. Find out why.
neutron • neutrons • protons • nuclear force • residual strong force
Structure of an Atom
Atoms are the basic building blocks of matter. They form the molecules that are involved in the processes of living systems.
what is an atom • carbon atom • the atom • neutron • atomic structure
Atoms are the basic building blocks of matter. They form the molecules that are involved in the processes of living systems.
what is an atom • carbon atom • the atom • neutron • atomic structure
Radioactive Element Polonium.
A major news item of 2006 was the mysterious death of former Russian agent, Alexander Litvinenko, who was poisoned using an isotope of the metal, polonium.
polonium • radioactivity • alexander litvinenko • henri becquerel • marie curie
A major news item of 2006 was the mysterious death of former Russian agent, Alexander Litvinenko, who was poisoned using an isotope of the metal, polonium.
polonium • radioactivity • alexander litvinenko • henri becquerel • marie curie
Mother lode
Ask anybody what is a supernova, and chances are a vast majority will respond it goes bang and has to do with astronomy. Supernovas are epitomes of out of this world catastrophe, of unimaginable violence. Yet we all have been - in a distant past - within not one but probably several ones. Close and intimate.
supernova • guest star • sn1987a • crab • veil
Ask anybody what is a supernova, and chances are a vast majority will respond it goes bang and has to do with astronomy. Supernovas are epitomes of out of this world catastrophe, of unimaginable violence. Yet we all have been - in a distant past - within not one but probably several ones. Close and intimate.
supernova • guest star • sn1987a • crab • veil
Smoking Gun for the Permian Extinction?
New geological evidence now supports the theory that a very large (possibly 60 km in size) asteroid collided with the earth at the end of the Permian period. This impact was probably the leading cause for the extinction of nearly all life on earth at the end of the Permian.
geology • geophysics • permian • asteroids • impact
New geological evidence now supports the theory that a very large (possibly 60 km in size) asteroid collided with the earth at the end of the Permian period. This impact was probably the leading cause for the extinction of nearly all life on earth at the end of the Permian.
geology • geophysics • permian • asteroids • impact
Chemistry in Archaeology
When one thinks of the sciences involved with archaeology work, chemistry is not necessarily the first to come to mind, but it is an essential area of study.
archeological science • archaeological science • chemistry and archaeology • chemistry and archeology • strontium and archaeology
When one thinks of the sciences involved with archaeology work, chemistry is not necessarily the first to come to mind, but it is an essential area of study.
archeological science • archaeological science • chemistry and archaeology • chemistry and archeology • strontium and archaeology
The Abiotic Theory of Petroleum Formation
Most scientists believe that oil comes from organic material that has been transformed by Nature over a very long period of time.
fossil fuel • oil • gas • hydrocarbon fuel • abiotic oil
Most scientists believe that oil comes from organic material that has been transformed by Nature over a very long period of time.
fossil fuel • oil • gas • hydrocarbon fuel • abiotic oil
Southern Hemisphere Climatic Similarities
South America, New Zealand and Tasmania have similar Quaternary terrestrial glacial records.
quaternary • south america • new zealand • tasmania • terrestrial
South America, New Zealand and Tasmania have similar Quaternary terrestrial glacial records.
quaternary • south america • new zealand • tasmania • terrestrial
Lighted Military and Hunting Sites & Scopes
Glyn Bindon's self-luminous sights and scopes are now standard equipment for thousands of U.S. law enforcement and military personnel as well as hunters.
tritium illuminated gun sites • tritium illuminating technology in south africa • gun sites and scopes • self-luminating sights and scopes • self-luminated sites
Glyn Bindon's self-luminous sights and scopes are now standard equipment for thousands of U.S. law enforcement and military personnel as well as hunters.
tritium illuminated gun sites • tritium illuminating technology in south africa • gun sites and scopes • self-luminating sights and scopes • self-luminated sites
Moon - Film Review
The film takes place in the future on an outpost on the moon where people are harnessing a new source of energy called Helium-3.
moon • sam rockwell • helium-3 • energy solutions • human cloning
The film takes place in the future on an outpost on the moon where people are harnessing a new source of energy called Helium-3.
moon • sam rockwell • helium-3 • energy solutions • human cloning
Object-Oriented Chemistry
This article describes how object-oriented programming concepts may be applied to computational codes.
computational chemistry • object-oriented • java • computer science • inheritance
This article describes how object-oriented programming concepts may be applied to computational codes.
computational chemistry • object-oriented • java • computer science • inheritance
The Gods Themselves
This novel was Asimov's first for fifteen years, but there's a feeling that it beat novels such as Silverberg's Dying Inside to the Hugo and Nebula through sentiment
hugo • isaac asimov • nebula • the gods themselves • dying inside
This novel was Asimov's first for fifteen years, but there's a feeling that it beat novels such as Silverberg's Dying Inside to the Hugo and Nebula through sentiment
hugo • isaac asimov • nebula • the gods themselves • dying inside
Choose a Career in Archaeology
Archeology is an exciting career for students with a fascination for the past and an eye for the finer details.
choosing career • archeology • careers • careers in archaeology • heritage
Archeology is an exciting career for students with a fascination for the past and an eye for the finer details.
choosing career • archeology • careers • careers in archaeology • heritage
David M. Lee - Superfluid Helium-3
David M. Lee shared the Nobel Prize in Physics in 1996 for his discovery of the superfluid properties of helium-3.
david m lee • cornell • helium-3 • superfluidity • nobel
David M. Lee shared the Nobel Prize in Physics in 1996 for his discovery of the superfluid properties of helium-3.
david m lee • cornell • helium-3 • superfluidity • nobel
Diagnosing Benign and Malignant Thyroid Nodules
Thyroid nodules are tumor-like growths that can develop within the thyroid gland and can vary in size, texture and ability to change thyroid hormone levels.
thyroid cancer • papillary • follicular • medullary • anaplastic
Thyroid nodules are tumor-like growths that can develop within the thyroid gland and can vary in size, texture and ability to change thyroid hormone levels.
thyroid cancer • papillary • follicular • medullary • anaplastic
How Life Began – Origin of Biochemicals
Possible origins and sources of organic chemicals on the early Earth providing the organic soup that gave rise to life.
how life began • origin of life • formation of the earth • primordial earth • prebiotic earth
Possible origins and sources of organic chemicals on the early Earth providing the organic soup that gave rise to life.
how life began • origin of life • formation of the earth • primordial earth • prebiotic earth
LEGG-PERTHES DISEASE - THE SILENT HIP INVADER
Legg-Perthes Disease, description, causes, treatment and prognosis
legg-perthes disease • children's disabilities • hip pain • knee pain • legg-calvé-perthes disease
Legg-Perthes Disease, description, causes, treatment and prognosis
legg-perthes disease • children's disabilities • hip pain • knee pain • legg-calvé-perthes disease
Nucleosynthesis in the Big Bang
The lightest four elements on the periodic table were made in nuclear fusion reactions shortly after the big bang.
big bang theory • universe • elementary particles • protons • cosmic nucleosynthesis
The lightest four elements on the periodic table were made in nuclear fusion reactions shortly after the big bang.
big bang theory • universe • elementary particles • protons • cosmic nucleosynthesis
Reef Sharks at Risk from Climate Change
Climate change may be affecting the distribution of sharks on Australia's Ningaloo coral reef by causing changes in sea temperature, current patterns and sea levels.
reef sharks at risk from climate change • reef sharks may suffer from changes caused by glob • sharks vulnerable to habitat degradation due to cl • sharks tracked by australian acoustic tagging and • conrad speed’s research into ningaloo reef shark p
Climate change may be affecting the distribution of sharks on Australia's Ningaloo coral reef by causing changes in sea temperature, current patterns and sea levels.
reef sharks at risk from climate change • reef sharks may suffer from changes caused by glob • sharks vulnerable to habitat degradation due to cl • sharks tracked by australian acoustic tagging and • conrad speed’s research into ningaloo reef shark p
The Platinum Group Metals
Closely related in atomic structure to the common metals iron, cobalt and nickel are a group of six others, which are among the rarest.
platinum metals in catalytic converters • removing gases from car exhausts • osmium the densest metal • radioactve ruthenium in seaweed • iridium at the cretaceous-tertiary boundary
Closely related in atomic structure to the common metals iron, cobalt and nickel are a group of six others, which are among the rarest.
platinum metals in catalytic converters • removing gases from car exhausts • osmium the densest metal • radioactve ruthenium in seaweed • iridium at the cretaceous-tertiary boundary
The Radioactive Boy Scout by Ken Silverstein
The true story of a boy and his backyard nuclear reactor
true • crime • radioactive • boy scout • science
The true story of a boy and his backyard nuclear reactor
true • crime • radioactive • boy scout • science
The Terminator
So-called "terminator seeds" which produce sterile seeds thereby forcing farmers to buy seed from corporate agribusiness giants, threaten our food supply and possibly our survival as a species.
environment • terminator seed • genome • genetic engineering • plants
So-called "terminator seeds" which produce sterile seeds thereby forcing farmers to buy seed from corporate agribusiness giants, threaten our food supply and possibly our survival as a species.
environment • terminator seed • genome • genetic engineering • plants
Canada's First Nuclear Reactor: ZEEP
The research on atomic theories performed with the ZEEP reactor at Chalk River, Ontario, lead to the large scale atomic reactors providing nuclear power today.
zeep • zero energy experimental pile • zeep reactor chalk river • zeep first nuclear reactor in canada • nuclear testing in canada
The research on atomic theories performed with the ZEEP reactor at Chalk River, Ontario, lead to the large scale atomic reactors providing nuclear power today.
zeep • zero energy experimental pile • zeep reactor chalk river • zeep first nuclear reactor in canada • nuclear testing in canada
Evidence for the Little Ice Age
Proxy studies and anecdotal evidence must be used to reconstruct past climates and provide evidence for the Little Ice Age.
little ice age • ice ages • climate changes • evidence little ice age • solar
Proxy studies and anecdotal evidence must be used to reconstruct past climates and provide evidence for the Little Ice Age.
little ice age • ice ages • climate changes • evidence little ice age • solar
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