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Microscopy Society Of America
The Microscopy Society of America (MSA) was founded in 1942 as The Electron Microscope Society of America and is a non-profit organization that provides microanalytical facilities for studies within the sciences. Currently, there are approximately 3000 members. The society holds an annual meeting, which is usually held in the beginning of August. It has 30 local affiliates across the United States. The society has a program for examining and certifying technologists of electron microscopes. The organization produces two journals: Microscopy Today, and Microscopy and Microanalysis. As of 2022, the President is Deborah F. Kelly. Microscopy Listserver The Microscopy Listserver is a network based discussion forum giving members of the scientific community a centralized Internet address to which questions/comments/answers in the various fields of Microscopy or Microanalysis can be rapidly distributed to a list of (subscribed) individuals by electronic mail. There are in excess of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States
The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territories, nine Minor Outlying Islands, and 326 Indian reservations. The United States is also in free association with three Pacific Island sovereign states: the Federated States of Micronesia, the Marshall Islands, and the Republic of Palau. It is the world's third-largest country by both land and total area. It shares land borders with Canada to its north and with Mexico to its south and has maritime borders with the Bahamas, Cuba, Russia, and other nations. With a population of over 333 million, it is the most populous country in the Americas and the third most populous in the world. The national capital of the United States is Washington, D.C. and its most populous city and principal financial center is New York City. Paleo-Americ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electron Microscopes
An electron microscope is a microscope that uses a beam of accelerated electrons as a source of illumination. As the wavelength of an electron can be up to 100,000 times shorter than that of visible light photons, electron microscopes have a higher resolving power than light microscopes and can reveal the structure of smaller objects. A scanning transmission electron microscope has achieved better than 50 pm resolution in annular dark-field imaging mode and magnifications of up to about 10,000,000× whereas most light microscopes are limited by diffraction to about 200 nm resolution and useful magnifications below 2000×. Electron microscopes use shaped magnetic fields to form electron optical lens systems that are analogous to the glass lenses of an optical light microscope. Electron microscopes are used to investigate the ultrastructure of a wide range of biological and inorganic specimens including microorganisms, cells, large molecules, biopsy samples, metal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Microscopy And Microanalysis
''Microscopy and Microanalysis'' is a peer-reviewed scientific journal that covers original research in the fields of microscopy, imaging, and compositional analysis, (accessed 30 September 2010) including electron microscopy, , atomic force microscopy, and live-cell imaging. It was established in February 1995, and is published by |
Deborah F
According to the Book of Judges, Deborah ( he, דְּבוֹרָה, ''Dəḇōrā'', " bee") was a prophetess of the God of the Israelites, the fourth Judge of pre-monarchic Israel and the only female judge mentioned in the Bible. Many scholars contend that the phrase, "a woman of Lappidot", as translated from biblical Hebrew in Judges 4:4 denotes her marital status as the wife of Lappidot.Van Wijk-Bos, Johanna WH. ''The End of the Beginning: Joshua and Judges''. Wm. B. Eerdmans Publishing, 2019. Alternatively, "lappid" translates as "torch" or "lightning", therefore the phrase, "woman of Lappidot" could be referencing Deborah as a "fiery woman." Deborah told Barak, an Israelite general from Kedesh in Naphtali, that God commanded him to lead an attack against the forces of Jabin king of Canaan and his military commander Sisera (Judges 4:6–7); the entire narrative is recounted in chapter 4. Judges chapter 5 gives the same story in poetic form. This passage, often called ''T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nestor J
Nestor may refer to: * Nestor (mythology), King of Pylos in Greek mythology Arts and entertainment * "Nestor" (''Ulysses'' episode) an episode in James Joyce's novel ''Ulysses'' * Nestor Studios, first-ever motion picture studio in Hollywood, Los Angeles * '' Nestor, the Long-Eared Christmas Donkey'', a Christmas television program Geography * Nestor, San Diego, a neighborhood of San Diego, California * Mount Nestor (Antarctica), in the Achaean Range of Antarctica * Mount Nestor (Alberta), a mountain in Alberta, Canada People * Nestor (surname), anglicised form of Mac an Adhastair, an Irish family * Nestor (given name), a name of Greek origin, from Greek mythology Science and technology * ''Nestor'' (genus), a genus of parrots * NESTOR Project, an international scientific collaboration for the deployment of a neutrino telescope * NESTOR (encryption), a family of voice encryption devices used by the United States during the Vietnam War era * 659 Nestor, an astero ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Transmission Electron Microscopy
Transmission electron microscopy (TEM) is a microscopy technique in which a beam of electrons is transmitted through a specimen to form an image. The specimen is most often an ultrathin section less than 100 nm thick or a suspension on a grid. An image is formed from the interaction of the electrons with the sample as the beam is transmitted through the specimen. The image is then magnified and focused onto an imaging device, such as a fluorescent screen, a layer of photographic film, or a sensor such as a scintillator attached to a charge-coupled device. Transmission electron microscopes are capable of imaging at a significantly higher resolution than light microscopes, owing to the smaller de Broglie wavelength of electrons. This enables the instrument to capture fine detail—even as small as a single column of atoms, which is thousands of times smaller than a resolvable object seen in a light microscope. Transmission electron microscopy is a major analytical method i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Atomic Force Microscopy
Atomic force microscopy (AFM) or scanning force microscopy (SFM) is a very-high-resolution type of scanning probe microscopy (SPM), with demonstrated resolution on the order of fractions of a nanometer, more than 1000 times better than the optical diffraction limit. Overview Atomic force microscopy (AFM) is a type of scanning probe microscopy (SPM), with demonstrated resolution on the order of fractions of a nanometer, more than 1000 times better than the optical diffraction limit. The information is gathered by "feeling" or "touching" the surface with a mechanical probe. Piezoelectric elements that facilitate tiny but accurate and precise movements on (electronic) command enable precise scanning. Despite the name, the Atomic Force Microscope does not use the Nuclear force. Abilities The AFM has three major abilities: force measurement, topographic imaging, and manipulation. In force measurement, AFMs can be used to measure the forces between the probe and the sample as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scanning Tunneling Microscopy
A scanning tunneling microscope (STM) is a type of microscope used for imaging surfaces at the atomic level. Its development in 1981 earned its inventors, Gerd Binnig and Heinrich Rohrer, then at IBM Zürich, the Nobel Prize in Physics in 1986. STM senses the surface by using an extremely sharp conducting tip that can distinguish features smaller than 0.1 nm with a 0.01 nm (10 pm) depth resolution. This means that individual atoms can routinely be imaged and manipulated. Most microscopes are built for use in ultra-high vacuum at temperatures approaching zero kelvin, but variants exist for studies in air, water and other environments, and for temperatures over 1000 °C. STM is based on the concept of quantum tunneling. When the tip is brought very near to the surface to be examined, a bias voltage applied between the two allows electrons to tunnel through the vacuum separating them. The resulting ''tunneling current'' is a function of the tip position, applied ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electron Energy Loss Spectroscopy
In electron energy loss spectroscopy (EELS) a material is exposed to a beam of electrons with a known, narrow range of kinetic energies. Some of the electrons will undergo inelastic scattering, which means that they lose energy and have their paths slightly and randomly deflected. The amount of energy loss can be measured via an electron spectrometer and interpreted in terms of what caused the energy loss. Inelastic interactions include phonon excitations, inter- and intra-band transitions, plasmon excitations, inner shell ionizations, and Cherenkov radiation. The inner-shell ionizations are particularly useful for detecting the elemental components of a material. For example, one might find that a larger-than-expected number of electrons comes through the material with 285 eV less energy than they had when they entered the material. This is approximately the amount of energy needed to remove an inner-shell electron from a carbon atom, which can be taken as evidence ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Microscopy Organizations
Microscopy is the technical field of using microscopes to view objects and areas of objects that cannot be seen with the naked eye (objects that are not within the resolution range of the normal eye). There are three well-known branches of microscopy: optical, electron, and scanning probe microscopy, along with the emerging field of X-ray microscopy. Optical microscopy and electron microscopy involve the diffraction, reflection, or refraction of electromagnetic radiation/electron beams interacting with the specimen, and the collection of the scattered radiation or another signal in order to create an image. This process may be carried out by wide-field irradiation of the sample (for example standard light microscopy and transmission electron microscopy) or by scanning a fine beam over the sample (for example confocal laser scanning microscopy and scanning electron microscopy). Scanning probe microscopy involves the interaction of a scanning probe with the surface of the object ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
