doctor willard bliss md august 18, 1825 – february 21, 1889 was an american physician and expert in ballistic trauma, who treated james a. garfield after his mortal wounding from a gunshot in july 1881 until his death two and a half months later.
radiography is an imaging technique using x-rays, gamma rays, or similar ionizing radiation and non-ionizing radiation to view the internal form of an object. applications of radiography include medical radiography 'diagnostic' and 'therapeutic' and industrial radiography.similar techniques are used in airport security where 'body scanners' generally use backscatter x-ray .
nanomedicine is the medical application of nanotechnology. nanomedicine ranges from the medical applications of nanomaterials and biological devices, to nanoelectronic biosensors, and even possible future applications of molecular nanotechnology such as biological machines.current problems for nanomedicine involve understanding the issues related to toxicity and environmental impact of .
copernicium is a synthetic chemical element with the symbol cn and atomic number 112. its known isotopes are extremely radioactive, and have only been created in a laboratory.the most stable known isotope, copernicium-285, has a half-life of approximately 28 seconds. copernicium was first created in 1996 by the gsi helmholtz centre for heavy ion research near darmstadt, germany.
americium often enters landfills from discarded smoke detectors. the rules associated with the disposal of smoke detectors are relaxed in most jurisdictions. in 1994, 17-year-old david hahn extracted the americium from about 100 smoke detectors in an attempt to build a breeder nuclear reactor.
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 .
a ct scan can be used for detecting both acute and chronic changes in the lung parenchyma, the tissue of the lungs. it is particularly relevant here because normal two-dimensional x-rays do not show such defects. a variety of techniques are used, depending on the suspected abnormality.
snf1lk2 has been shown to interact with crtc2. references further reading. this article on a gene on human chromosome 11 is a stub. you can help wikipedia by expanding it .
x-ray fluorescence xrf is the emission of characteristic 'secondary' or fluorescent x-rays from a material that has been excited by being bombarded with high-energy x-rays or gamma rays.the phenomenon is widely used for elemental analysis and chemical analysis, particularly in the investigation of metals, glass, ceramics and building materials, and for research in geochemistry, forensic .
a police mug shot of canadian-born gangster alvin 'creepy' karpis 1907 - 1979 , circa 1930. best known for his alliance with the barker gang in the u.s. in the early 1930s, karpis was the last so .
the akm is an assault rifle chambered in 7.62×39mm soviet intermediate cartridge. it is a selective fire, gas operated with a rotating bolt, firing in either semi-automatic or fully automatic, and has a cyclic rate of fire of around 600–650 rounds per minute rpm .the gas operated action has a massive bolt carrier with a permanently attached long stroke gas piston.
for instance, the edible frog pelophylax esculentus is a hybrid between the pool frog p. lessonae and the marsh frog p. ridibundus . the fire-bellied toads bombina bombina and b. variegata are similar in forming hybrids. these are less fertile than their parents, giving rise to a hybrid zone where the hybrids are prevalent.
cone beam computed tomography or cbct, also referred to as c-arm ct, cone beam volume ct, or flat panel ct is a medical imaging technique consisting of x-ray computed tomography where the x-rays are divergent, forming a cone.. cbct has become increasingly important in treatment planning and diagnosis in implant dentistry, ent, orthopedics, and interventional radiology ir , among other things.
resistance thermometers, also called resistance temperature detectors rtds , are sensors used to measure temperature. many rtd elements consist of a length of fine wire wrapped around a ceramic or glass core but other constructions are also used. the rtd wire is a pure material, typically platinum, nickel, or copper. the material has an .
xenon and the other noble gases were for a long time considered to be completely chemically inert and not able to form compounds.however, while teaching at the university of british columbia, neil bartlett discovered that the gas platinum hexafluoride ptf 6 was a powerful oxidizing agent that could oxidize oxygen gas o 2 to form dioxygenyl hexafluoroplatinate o
a geophone is a device that converts ground movement velocity into voltage, which may be recorded at a recording station.the deviation of this measured voltage from the base line is called the seismic response and is analyzed for structure of the earth.