Science.gov

Sample records for zr-rich accessory minerals

  1. Hunting for eruption ages in accessory minerals

    NASA Astrophysics Data System (ADS)

    Vazquez, J. A.

    2012-12-01

    A primary goal in geochronology is to provide precise and accurate ages for tephras that serve as chronostratigraphic markers for constraining the timing and rates of volcanism, sedimentation, climate change, and catastrophic events in Earth history. Zircon remains the most versatile accessory mineral for dating silicic tephras due to its common preservation in distal pyroclastic deposits, as well as the robustness of its U-Pb and U-series systems even after host materials have been hydrothermally altered or weathered. Countless studies document that zircon may be complexly zoned in age due to inheritance, contamination, recycling of antecrysts, protracted crystallization in long-lived magma reservoirs, or any combination of these. Other accessory minerals such as allanite or chevkinite can retain similar records of protracted crystallization. If the goal is to date the durations of magmatic crystallization, differentiation, and/or magma residence, then these protracted chronologies within and between accessory minerals are a blessing. However, if the goal is to date the timing of eruption with high precision, i.e., absolute ages with millennial-scale uncertainties, then this age zoning is a curse. Observations from ion microprobe 238U-230Th dating of Pleistocene zircon and allanite provide insight into the record of near-eruption crystallization in accessory minerals and serve as a guide for high-precision whole-crystal dating. Although imprecise relative to conventional techniques, ion probe analysis allows high-spatial resolution 238U-230Th dating that can document multi-millennial age distributions at the crystal scale. Analysis of unpolished rims and continuous depth profiling of zircon from small and large volume eruptions (e.g., Coso, Mono Craters, Yellowstone) reveals that the final several micrometers of crystallization often yield ages that are indistinguishable from associated eruption ages from the 40Ar/39Ar or (U-Th)/He methods. Using this approach, we have derived relatively precise ( ~ 5%, 2?) U-Th isochron ages from the unpolished rims of pumice-derived allanite and zircon from late Pleistocene Wilson Creek Formation tephras in eastern California, whose ages are controversial and have been difficult to resolve via 40Ar/39Ar and radiocarbon dating. Allanite and zircon rims from Ashes 7-19 in the lower portion of Wilson Creek sediments yield stratigraphically consistent ages of ca. 27 ka to ca. 62 ka, with a minority of crystals identifiable as xenocrysts from early Mono Craters rhyolites. Model ages for the interiors of allanite crystals are mostly < 10 k.y. older than their rims. Tephra deposited during the geomagnetic excursion debated to be either the Mono Lake or Laschamp event yields a rim isochron age of ca. 41 ka. This age is indistinguishable from an independent age of 41 ka derived at the latter excursion's type locality in France (Singer et al., 2009) as well as from age-models for deep-sea sediments. The results are in excellent agreement with a previously determined chronology derived from magnetostratigraphy (Zimmerman et al., 2006). Refs: Singer et al., 2009, EPSL 286: 80-88; Zimmerman et al., 2006, EPSL 252: 94-106

  2. Identification and significance of accessory minerals from a bituminous coal

    USGS Publications Warehouse

    Finkelman, R.B.; Stanton, R.W.

    1978-01-01

    A scanning electron microscope (SEM) has been used to study the in situ accessory minerals in polished blocks and pellets of petrographically analysed samples of the Waynesburg coal (hvb). Individual grains from the low-temperature ash (LTA) of the same coal were also studied. The visual resolution of the SEM permitted the detection of submicron mineral grains, which could then be analysed by the attached energy-dispersive system. Emphasis was placed on the highly reflective grains in the carbominerite bands. Among the most abundant accessory minerals observed were rutile, zircon, and rare-earth-bearing minerals. Small (1-5 ??m) particles of what may be authigenic iron-rich chromite and a nickel silicate form rims on quartz grains. The SEM also permits the observation of grain morphology and mineral intergrowths. These data are useful in determining authigenicity and diagenic alteration. Substances in density splits of LTA include authigenic, detrital, extraterrestrial magnetite, tourmaline, and evaporite (?) minerals, and a fluorine-bearing amphibole. This analytical approach allows the determination of specific sites for many of the trace elements in coals. In the Waynesburg coal, most of the chromium is in the iron-chromium rims, the fluorine is in the amphibole, and the rare-earth elements are in rare-earth-bearing minerals. The ability to relate trace-element data to specific minerals will aid in predicting the behaviour of elements in coal during combustion, liquefaction, gasification, weathering, and leaching processes. This ability also permits insight into the degree of mobility of these elements in coal and provides clues to sedimentological and diagenetic conditions. ?? 1978.

  3. Dating Planetary Processes and Impact Events Using Accessory Minerals: Progress and Challenges

    NASA Astrophysics Data System (ADS)

    Darling, J. R.; Moser, D.; White, L. F.

    2015-09-01

    We report on recent advances in understanding the micro- to nano-scale effects of shock metamorphism on U and Th bearing accessory mineral phases, particularly baddeleyite, and their linkage with isotopic disturbance in planetary materials.

  4. Accessory mineralization of rocks from Late Cretaceous intrusive series with LiF granites in the Far East

    NASA Astrophysics Data System (ADS)

    Alekseev, V. I.; Marin, Yu. B.

    2015-12-01

    Accessory mineralization of the Late Cretaceous intrusive series in the Far East was investigated on the basis of published data and the author's original evidence. The composition of accessory minerals from leucogranite, monzonitoid rocks, and Li-F granites has been established. The trend in the evolution of Late Cretaceous granitoids is characterized by an increase in the mineral-forming role of iron and rare elements. Diverse accessory minerals and their typomorphic assemblages have been identified for Li-F granites and ongonites. The regional specificity of accessory mineralization in rare-metal granites consists in the leading role of the minerals W, Ta, Nb, Bi, Y, REE, and As. The uniformity of mineral species and mineral assemblages and the typomorphism and evolution of accessory minerals are inherent to the Far East belt of Li-F granites.

  5. Accessory and opaque minerals in impact melt rocks of the Boltysh structure, Ukraine

    NASA Astrophysics Data System (ADS)

    Gurov, E. P.; Shekhunova, S. B.; Permyakov, V. V.

    2015-06-01

    Electron microprobe analyses of accessory and opaque minerals from the impact melt rocks of the Boltysh structure, in the central part of the Ukrainian Shield, are presented in this report. Our study establishes a variety of minerals represented by native metals, alloys, oxides, sulfides, phosphates, and silicates, formed during several stages of cooling and solidification of the thick impact melt sheet. Baddeleyite was determined to be the earliest high-temperature mineral to occur in the impact melt rocks. Iron and titanium oxides crystallized earlier or simultaneously with the microliths of orthopyroxene and feldspars. High concentrations of TiO2, Al2O3, and Cr2O3 were identified in some hematite varieties. Cu- and Ni-bearing pyrrhotites occur in impact melt rocks with a glassy matrix. Native metalscopper, platinum, and silverwere likely formed due to the hydrothermal alteration of the upper unit of the impact melt sheet. Zircon is the only accessory mineral found in impact melt rocks that is preserved from the basement granites of the Boltysh structure.

  6. Consistent patterns of rare earth element distribution in accessory minerals from rocks of mafic-ultramafic complexes

    NASA Astrophysics Data System (ADS)

    Lesnov, Felix Petrovich

    2013-03-01

    This paper summarizes analytical data accumulated in the world literature and other materials about the regularities of the REE distribution in minerals contained in ultramafic and mafic rocks as accessory phases. These minerals are tentatively divided into two groups. The first includes garnets, zircons, apatites and perovskites, which can accumulate increased amounts of REE in their structure. The second consists of minerals whose structure can accumulate only limited contents of these trace elements. These are chrome-spinels, ilmenites, and micas. These minerals, in respect of REE geochemistry, are studied to a varying degree because of the different levels of accumulations of these elements, different degrees of occurrence in rocks, tiny sizes of their grains and other reasons. The analytical database formed on their basis includes about 600 original analyses. The overwhelming majority of presently available data on REE geochemistry in accessory minerals from ultramafic and mafic rocks have been published only in the recent 15 years. The studies became possible due to the development and introduction of new highly sensible microprobe analyses allowing detection of REE and many other trace elements in minerals grains directly in thin sections. The greatest numbers of these analyses were performed for garnets and zircons, fewer for apatites, and the fewest for chrome-spinels, ilmenites, micas, and perovskites. In general, the regularities of REE distribution in these minerals from ultramafic and mafic rocks are less studied compared to the rock-forming minerals from ultramafic and mafic rocks. Among the analytical methods, which were used to study the REE composition of accessory minerals, the most efficient was the mass-spectrometry with inductively coupled plasma (ICP-MS).

  7. Distinctive Accessory Minerals, Textures and Crystal Habits in Biofilm Associated Gypsum Deposits

    NASA Astrophysics Data System (ADS)

    Vogel, M.; Des Marais, D.; Jahnke, L.; Parenteau, M.

    2008-12-01

    Gypsum-depositing environments near Guerrero Negro, Baja California Sur, Mexico were investigated in order to differentiate the influence of microbial activity versus nonbiological processes upon sedimentary fabrics and minerals. Field sites were located in sabkhas (mudflats and anchialine pools) and in seawater concentration ponds in the salt production facility operated by Exportadora de Sal, S. A. Gypsum (CaSO4.2H2O) was classified according to sedimentary environment (e.g., mudflats, anchialine pools, saltern ponds, surface and subsurface sediments), sedimentary texture, mineral composition, crystal habit, brine composition and other geochemical and biological factors. Gypsum types that develop in the absence of biofilms include water column precipitates (pelagic grains) and subsedimentary crystalline discs that form from phreatic brine ripening. Subsedimentary gypsum forming in sabkha environments had a sinuous axial microtexture and poikilitically enclosed detrital particles whereas water column precipitates exhibited euhedral prismatic habits and extensive penetrative twinning. Gypsum that was influenced by biofilms included cumulate crusts and gypsooids / gypsolite developing in anchialine pools and in saltern concentration ponds. Gypsum precipitating within subaqueous benthic microbial mats, or biofilm/sediment surfaces offered compelling evidence of biofilm influence on crystal textures and habits. Biofilm effects include irregular high relief surface textures, accessory minerals (elemental sulfur, Ca-carbonate, Sr/Ca-sulfate, Mg-oxide and Mg- sulfate) and distinctive crystal habits. Elemental sulfur, Ca-carbonate, and Sr/Ca-sulfate are known byproducts of bacterially mediated sulfate reduction (BSR). Populations of gypsum crystals within biofilms exhibited euhedral to lensoidal morphologies with unique equant and distorted prismatic forms. These forms had been shown to arise from form- and face-specific inhibition by bioorganic functional groups (Cody, 1991; Cody and Cody 1991). Biofilms therefore may play an active role in influencing brine chemistry, inducing crystallization and modifying crystal habits, evidence of which is preserved in grain morphologies.

  8. Linking rare earth element zoning in major and accessory minerals to better understand metasedimentary migmatites

    NASA Astrophysics Data System (ADS)

    Matthews, J. A.; Kelly, N. M.; Koenig, A.; Harley, S. L.

    2011-12-01

    Trace element signatures from major and accessory minerals are increasingly used to place constraints on the ages of tectonothermal events and gain insights into processes operating in the deep continental crust. Minerals such as garnet, zircon or monazite represent sensitive recorders of events if a solid understanding exists of what trace element signatures represent. A study underway on granulite facies migmatites is providing insights into trace element signatures in garnet, and when integrated with in situ, microbeam analysis of zircon and monazite, is allowing a complex polymetamorphic history to be deciphered. The Larsemann Hills, east Antarctica, are composed of felsic orthogneisses and metasediments that were affected by high-grade metamorphism and partial melting at c. 7 kbar and >800 C. Initially interpreted to have experienced a single cycle of metamorphism at c. 550-530 Ma, recent ages suggest that the area was affected by an earlier high-grade event at c. 900 Ma; the timing of migmatization relative to these two events remains uncertain. To address this, a detailed study has targeted metasedimentary migmatites. Garnet, zircon and monazite were analysed from melanosome, leucosome and selvage domains. Garnet (predominantly almandine-pyrope) preserves little, if any, major element zoning. In contrast, it records systematic within-grain variations in heavy rare earth element (HREE) concentration depending on textural context. Garnet within residuum domains displays broad cores with flat HREE slopes in chondrite-normalized plots, but are HREE-depleted (negative slopes) at boundaries adjacent to leucosome. In contrast, garnet boundaries adjacent to cordierite-rich selvages are typically HREE-enriched, with positive-sloping patterns. It is interpreted that core-rim depletions in HREE may reflect evolution of the whole-rock reservoir towards depletion during migmatization and garnet growth. Enrichment in garnet HREE adjacent to selvage domains likely resulted from local reaction between solids and melts either during melt transit and/or crystallization. Monazite, which is preferentially located in leucosome domains, preserves ages that reflect growth at c. 900 Ma and c. 530 Ma, although trace element signatures are ambiguous. However, zircon, which is preferentially located in selvage domains, preserves c. 530 Ma rims with depleted, flat to negatively sloping HREE patterns. It is interpreted that these zircon rims grew in, or near to equilibrium with garnet cores and rims during partial melting, and may date at least part of migmatite formation in the Larsemann Hills. They do not date the final crystallization of melts and development of selvage domains. Preliminary results of this study have shown that the trace element composition of garnet from high-temperature terrains can be a powerful tool in tracking metamorphic and melting processes where major elements zoning is no longer preserved. This study also demonstrates the utility of textural context when interpreting trace element patterns and ages from dateable accessory minerals in rocks from polycyclic metamorphic terrains.

  9. In-situ Nd isotope measurements on accessory minerals: Insights into isotope equilibration during metamorphism

    NASA Astrophysics Data System (ADS)

    Hammerli, Johannes; Spandler, Carl; Kemp, Tony; Pirard, Cassian

    2015-04-01

    Understanding isotope equilibration processes during metamorphism has huge implications for a range of geoscience applications, ranging from provenance studies of sedimentary units to the origin of magmas and ore bodies. Furthermore, recent claims of isotope disequilibrium situations during the melting of continental crust have questioned the reliability of using certain isotope systems to track magma sources. Our recent work investigated a prograde sequence of high-temperature, low-pressure (350-650 ?C, ~3-5 kbar) metasedimentary rocks from the Mt. Lofty Ranges, South Australia that underwent widespread pervasive fluid flow at peak metamorphism. In situ Nd-isotope analyses by LA-MC-ICP-MS found that the detrital signature of apatite survives temperatures of 500 C. However, the observed isotope equilibration of REE-bearing accessory minerals at ~600 C, before the onset of partial melting, suggests that isotope disequilibrium is unlikely during high-grade metamorphism of upper crustal rocks where fluid induced melting takes place. Here, we extend our research to metasedimentary rocks from (ultra)-high pressure metamorphic terrains from northern New Caledonia, and Dabieshan, China that represent pressure and temperature conditions found in subduction zones. Our study helps to understand isotope equilibration processes from heterogeneous protoliths as well as the impact of retrogression and the resetting of isotope systems over a pressure-temperature range from ~350 C to 700 C and ~15 kbar to 40 kbar. Nd isotope analyses of apatite, allanite, titanite, xenotime, monazite, lawsonite and epidote in pelitic and psammitic samples allow the investigation of isotope equilibration on a mineral and sub-mineral scale, as well as comparison with traditional bulk rock isotope analyses. Our preliminary results show that under high-pressure conditions (~20 to 30 kbar) and temperatures to ~650 C, REE-bearing phases show variable ?Nd values in some cases. These differences cannot be simply explained with retrogressive processes and the partial resetting of the isotope system. The results rather suggest that isotopic exchange between different REE-phases in such systems might be limited, and hence heterogeneous isotope signatures of protolithic sedimentary rocks can survive to great depths in subduction-zone environments. These results may have bearing on the reliability of isotopic tracking of the subducted slab component of arc magmas.

  10. Accessory minerals and subduction zone metasomatism: a geochemical comparison of two mélanges (Washington and California, U.S.A.)

    USGS Publications Warehouse

    Sorensen, Sorena S.; Grossman, Jeffrey N.

    1993-01-01

    Data from the Gee Point and Catalina mélanges suggest that the accessory minerals titanite, rutile, apatite, zircon and REE-rich epidote play a significant role in the enrichment of trace elements in both mafic and ultramafic rocks during subduction-related fluid-rock interaction. Mobilization of incompatible elements, and deposition of such elements in the accessory minerals of mafic and ultramafic rocks may be fairly common in fluid-rich metamorphic environments in subduction zones.

  11. Trace Element Analysis of Accessory and Rock-Forming Minerals by Ion Microprobe (SHRIMP-RG)

    NASA Astrophysics Data System (ADS)

    Mazdab, F. K.; Wooden, J. L.

    2006-12-01

    The Sensitive High Resolution Ion Microprobe-Reverse Geometry (SHRIMP-RG) is well suited to in-situ analysis of trace elements in a variety of accessory and rock-forming minerals. Work-to-date has centered on zircon, but compositional data for titanite, monazite, xenotime, apatite and clinopyroxene have also been collected. Additional techniques for epidote group and garnet group mineral analysis are being evaluated as well. Overall, the SHRIMP-RG couples the excellent spatial and depth resolution characteristic of conventional SIMS with high transmission and good, flat-topped peak shape even at extreme mass resolution (M/dM = 11000-12000 at 10% peak height), unique to the reverse geometry design. In zircon, this permits the effective resolution of 45Sc+ from 90Zr(2+) (M/dM = 12660) and 93Nb+ from 92Zr1H+ (M/dM = 14330). Zircon and the phosphates are among the most straightforward minerals to analyze; mass interferences tend to be simple and resolvable. In contrast, trace element analyses of the complex silicates require more care. In titanite, the Sr and Zr isotopes, Y and Nb can not be fully resolved from the Ca-Ca and, more significantly, Ca-Ti dimers (M/dM = up to 470000), although in many cases the effects of these interferences are almost negligible. In clinopyroxene, epidote and garnet, the family of (xCa)(yFe)(zSi)(16O2)+ species and comparable molecular ions with Mg and Al limit the ability to detect low concentrations of the REE using high mass resolution alone; some energy filtering or peak stripping is necessary. Despite these considerations, a selection of masses ranging from 7Li+, 9Be+ and 11B+ through to 232Th16O+ and 238U16O+, including the REE and key transition metals can be easily measured in less than 20 minutes. Fluorine, chlorine and phosphorus, traditionally measured as negative ions with a Cs+ primary beam, are nonetheless sufficiently abundant as positive ions to be successfully measured even at low ppm levels. Typical beam diameters down to 20 microns allow in many cases multiple analyses within individual zoned crystals, while the limited 1-2 micron crater depth minimizes unintended sampling of subsurface features. Data from these techniques have wide application in mineralogy and petrology. Ti in zircon and Zr in titanite are the bases for novel new geothermometers for igneous and metamorphic rocks, and some of the T-X relationships of REE partitioning between coexisting monazite and xenotime have also been calibrated. The nature and extent of substitution mechanisms such as [(Sc+Y+REE)P]1[ZrSi]-1 (xenotime substitution) in zircon, [CaTh]1[2REE]-1 (brabantite substitution) and [ThSi]1[(REE)P]-1 (huttonite substitution) in monazite and diverse substitution mechanisms in titanite (involving REE, Nb, Na, Al, and Fe) are all related to local P-T- X conditions and thus provide important clues to processes and environment. The starting point for these and other applications is accurate analytical data from well-characterized mineral zones. Although some extra care is necessary to ensure the best quality data from the more complex silicates, the SHRIMP-RG is the ideal instrument to perform these measurements.

  12. Composition and evolution of accessory mineralization of LiF granites in the Far East as indicators of their ore potential

    NASA Astrophysics Data System (ADS)

    Alekseev, V. I.; Marin, Yu. B.

    2015-12-01

    The ore potential of Pacific Li-F granites is considered on the basis of original and published data on composition of these granites and related metasomatic rocks in the Badzhal (Amur region) and Kuiviveem-Pyrkakai (Chukchi Peninsula) ore districts. The accessory mineralization in rare-metal granites is compared with that in W-Sn deposits. The main features in evolution of magmatic and hydrothermal mineralization are pointed out. A conclusion on the similarity between mineralization of the zwitter-tourmalinite type and accessory minerals in Li-F granites is drawn. It is established that magmatic and hydrothermal types of mineralization belong to the same evolutionary sequence. Genetic links between Li-F granites and the large ore deposits in the East Asian tungsten-tin zone are suggested.

  13. Mineral Dissolution and Precipitation due to Carbon Dioxide-Water-Rock Interactions: The Significance of Accessory Minerals in Carbonate Reservoirs (Invited)

    NASA Astrophysics Data System (ADS)

    Kaszuba, J. P.; Marcon, V.; Chopping, C.

    2013-12-01

    Accessory minerals in carbonate reservoirs, and in the caprocks that seal these reservoirs, can provide insight into multiphase fluid (CO2 + H2O)-rock interactions and the behavior of CO2 that resides in these water-rock systems. Our program integrates field data, hydrothermal experiments, and geochemical modeling to evaluate CO2-water-rock reactions and processes in a variety of carbonate reservoirs in the Rocky Mountain region of the US. These studies provide insights into a wide range of geologic environments, including natural CO2 reservoirs, geologic carbon sequestration, engineered geothermal systems, enhanced oil and gas recovery, and unconventional hydrocarbon resources. One suite of experiments evaluates the Madison Limestone on the Moxa Arch, Southwest Wyoming, a sulfur-rich natural CO2 reservoir. Mineral textures and geochemical features developed in the experiments suggest that carbonate minerals which constitute the natural reservoir will initially dissolve in response to emplacement of CO2. Euhedral, bladed anhydrite concomitantly precipitates in response to injected CO2. Analogous anhydrite is observed in drill core, suggesting that secondary anhydrite in the natural reservoir may be related to emplacement of CO2 into the Madison Limestone. Carbonate minerals ultimately re-precipitate, and anhydrite dissolves, as the rock buffers the acidity and reasserts geochemical control. Another suite of experiments emulates injection of CO2 for enhanced oil recovery in the Desert Creek Limestone (Paradox Formation), Paradox Basin, Southeast Utah. Euhedral iron oxyhydroxides (hematite) precipitate at pH 4.5 to 5 and low Eh (approximately -0.1 V) as a consequence of water-rock reaction. Injection of CO2 decreases pH to approximately 3.5 and increases Eh by approximately 0.1 V, yielding secondary mineralization of euhedral pyrite instead of iron oxyhydroxides. Carbonate minerals also dissolve and ultimately re-precipitate, as determined by experiments in the Madison Limestone, but pyrite will persist and iron oxyhydroxides will not recrystallize.

  14. The evolution of the Peach Spring Tuff magmatic system as revealed by accessory mineral textures and compositions

    NASA Astrophysics Data System (ADS)

    Pamukcu, A. S.; Gualda, G. A.; Miller, C. F.; Wooden, J. L.

    2010-12-01

    The Peach Spring Tuff (PST), a large Miocene ignimbrite located in the southwestern USA, is distinctive in its abundance of U, Th, and REE concentrating accessory minerals (zircon, sphene, allanite, chevkinite). We have examined textures and compositions of these accessory minerals and magnetite, as well as glasses, in pumice clasts and fiamme from the PST outflow and intracaldera by a variety of methods. Textures of crystal populations were assessed qualitatively in thin sections and crystal separates, and quantitatively by differential absorption x-ray tomography (DAT) to obtain quantitative textural information (i.e. crystal size distributions, CSDs). We have also analyzed REE compositions of glasses by LA-ICPMS and zircon and sphene by SHRIMP-RG. Pumice clasts and fiamme from the outflow sheet and intracaldera deposits range in composition and crystal content, from relatively crystal-poor rhyolites to crystal-rich trachytes, with intracaldera fiamme on the less silicic end of this spectrum. REE trends in zircon and sphene grains reveal a simple fractionation history in rhyolites, but MREE enrichment in sphene edges in trachytes suggest final growth from a less evolved melt. Ti-in-zircon and Zr-in-sphene thermometry reveals lower temperature growth at edges of grains from rhyolites (down to ~730 C), while edges from trachytes record warmer temperatures (up to ~980 C). Trace element variations and estimated temperatures also suggest that zircon has a more protracted history of growth than other accessory phases. Textures are consistent with the geochemical results. Phenocrysts in rhyolites tend to be euhedral, while those from intracaldera trachytes display resorption features. Zircon and allanite+chevkinite size distributions in outflow pumice clasts and intracaldera fiamme generally display exponential CSDs, consistent with a simple growth and nucleation history. Sphene and magnetite size distributions in outflow samples are generally kinked, with large numbers of small (<100 m) crystals, suggestive of enhanced nucleation due to rapid decompression. In intracaldera fiamme, the abundance of large sphene crystals (>200 m) is considerably lower than what is found for the other accessory phases, and sphene CSDs have concave-down shapes for crystals <100 m. These features are consistent with resorption. The lack of a concave-down section in zircon and allanite+chevkinite CSDs is likely due to comparatively slower growth rates of these phases. These results suggest that the PST was a zoned system affected by a late-stage heating event, which may have triggered eruption, followed by eruptive decompression. Timescales of crystallization calculated from magnetite size distributions suggest this decompression event occurred at most months to a year before eruption. One outflow pumice clast of trachyte composition follows compositional trends of intracaldera trachytes and textural trends of outflow rhyolites, suggesting that these events affected different regions of the chamber to different extents.

  15. Uranium-rich accessory minerals in the peraluminous and perphosphorous Belvs de Monroy pluton (Iberian Variscan belt)

    NASA Astrophysics Data System (ADS)

    Prez-Soba, Cecilia; Villaseca, Carlos; Orejana, David; Jeffries, Teresa

    2014-05-01

    The strongly peraluminous, perphosphorous (<0.85 wt% P2O5) and low-Ca granites from the Belvs de Monroy pluton contain the most U-rich monazite-(Ce) and xenotime known in igneous rocks. Along with these accessory minerals, P-rich zircon occurs, reaching uncommon compositions particularly in the more fractionated units of this zoned pluton. Monazite displays a wide compositional variation of UO2 (<23.13 wt%) and ThO2 (<19.58 wt%), positively correlated with Ca, Si, P, Y and REE. Xenotime shows a high UO2 content (2.37-13.34 wt%) with parallel increases of LREE, Ca and Si. Zircon contains comparatively much lower UO2 (<1.53 wt%) but high P2O5 (<14.91 wt%), Al2O3 (<6.96 wt%), FeO (<2.93 wt%) and CaO (<2.24 wt%) contents. The main mechanism of incorporating large U and Th amounts in studied monazite and U in xenotime is the cheralite-type [(Th,U)4+ + Ca2+ = 2(Y,REE)3+] substitution. Zircon requires several coupled mechanisms to charge balance the P substitution, resulting in non-stoichiometric compositions with low analytical totals. Compositional variations in the studied accessory phases indicate that the substitution mechanisms during crystal growth depend on the availability of non-formula elements. The strong P-rich character of the studied granites increases monazite crystallization, triggering a progressive impoverishment in Th and LREE in the residual melts, and consequently increasing extraordinarily the U content in monazite and xenotime. This is in marked contrast to other peraluminous (I-type or P-poor S-type) granite series. The P-rich and low-Ca peraluminous melt inhibits uraninite crystallization, so contributing to the U availability for monazite and xenotime.

  16. Using the potential of accessory minerals: detailed reconstruction of emplacement and crystallization sequence in the Southern Adamello Batholith, N. Italy

    NASA Astrophysics Data System (ADS)

    Broderick, C. A.; Schaltegger, U.; Frick, D.; Guenther, D.; Brack, P.

    2011-12-01

    Recent advances in U-Pb zircon geochronology have revealed the complexities of pluton construction, by multiple injections on 10-100 ka to Ma timescales (Michel et al., 2008, Schaltegger et al., 2009). Using high precision U-Pb dating we are potentially able to describe the duration and evolution of magmatic systems, their crystallization and emplacement within the crust. The potential exists to better understand these processes by detailed study of accessory minerals. The trace element and isotopic characteristics of accessory minerals makes them important information carriers for tracking changes in a magma through time. High precision U-Pb dating, using CA-ID-TIMS and employing the ET2535 tracer solution for <0.1% precision and accuracy on 206Pb/238U zircon and titanite dates, and trace element analyses of zircon and titanite, combined with Hf isotope analysis of zircon are presented for the investigation of a complex magmatic system. This study focuses on the Val Fredda Complex (VFC) in the southern tip of the 43 to 32 Ma Adamello batholith, N. Italy. The VFC displays complex relationships among mafic melts that were injected into solidifying felsic magmas. The mafic units crystallized potential autocrystic zircons over a duration of 100 ka, with the majority of zircons co-crystallizing with titanite. The TIMS-TEA method (Schoene et al., 2010) allows us to analyze trace elements on the same volume of zircon/titanite used for U-Pb dating. Mafic zircon and titanite trace elements (e.g., Eu/Eu* and Sr) suggest that these accessory minerals crystallized prior to plagioclase fractionation. Based on experiments (Ulmer et al., 1983) and the trace element data from this study, we suggest that the mafic zircons and titanites do not represent in situ crystallization and therefore are more likely antecrystic. Data from the VFC felsic units show more complex zircon populations, including xenocrystic, antecrystic and autocrystic zircons. These felsic units have apparent autocrystic zircon growth over 100 to 200 ka, with zircons co-crystallizing with titanites during the final 20 to 50 ka. While zircon/chondrite normalized REE patterns do not vary with differentiation, titanite REE patterns reveal changes with differentiation, mostly within the LREEs and Eu/Eu*. Based on trace element fractionation we suggest that felsic zircons and titanites crystallized in situ and represent autocrystic growth. The oldest autocrystic zircon may approximate the injection of the respective magma pulses into the host rock, whereas the youngest zircon and titanite indicate final crystallization at the solidus in a stagnant interstitial melt. We acknowledge funding of FNS in the frame of ProDoc Adamello 4-D. Michel et al., 2008, Geol. 36 : 459-462 ; Schaltegger et al., 2009, Earth Planet. Sci.Lett. 286: 208-218; Schoene et al., 2010, Geochim. Cosmochim. Acta 74, 7144-7159; Ulmer et al., 1983, Mem. Soc. Geol. It. 26 : 171-222

  17. Accessory and rock forming minerals monitoring the evolution of zoned mafic ultramafic complexes in the Central Ural Mountains

    NASA Astrophysics Data System (ADS)

    Krause, J.; Brgmann, G. E.; Pushkarev, E. V.

    2007-04-01

    This study describes major and trace element compositions of accessory and rock forming minerals from three Uralian-Alaskan-type complexes in the Ural Mountains (Kytlym, Svetley Bor, Nizhnii Tagil) for the purpose of constraining the origin, evolution and composition of their parental melts. The mafic-ultramafic complexes in the Urals are aligned along a narrow, 900 km long belt. They consist of a central dunite body grading outward into clinopyroxenite and gabbro lithologies. Several of these dunite bodies have chromitites with platinum group element mineralization. High Fo contents in olivine (Fo 92-93) and high Cr/(Cr + Al) in spinel (0.67-0.84) suggest a MgO-rich (> 15 wt.%) and Al 2O 3-poor ultramafic parental magma. During its early stages the magma crystallized dominantly olivine, spinel and clinopyroxene forming cumulates of dunite, wehrlite and clinopyroxenite. This stage is monitored by a common decrease in the MgO content in olivine (Fo 93-86) and the Cr/(Cr + Al) value of coexisting accessory chromite (0.81-0.70). Subsequently, at subsolidus conditions, the chromite equilibrated with the surrounding silicates producing Fe-rich spinel while Al-rich spinel exsolved chromian picotite and chromian titanomagnetite. This generated the wide compositional ranges typical for spinel from Uralian-Alaskan-type complexes world wide. Laser ablation analyses (LA-ICPMS) reveal that clinopyroxene from dunites and clinopyroxenite from all three complexes have similar REE patterns with an enrichment of LREE (0.5-5.2 prim. mantle) and other highly incompatible elements (U, Th, Ba, Rb) relative to the HREE (0.25-2.0 prim. mantle). This large concentration range implies the extensive crystallization of olivine and clinopyroxene together with spinel from a continuously replenished, tapped and crystallizing magma chamber. Final crystallization of the melt in the pore spaces of the cooling cumulate pile explains the large variation in REE concentrations on the scale of a thin section, the REE-rich rims on zoned clinopyroxene phenocrysts (e.g. La Rim/La Core 2), and the formation of interstitial clinopyroxene with similar REE enrichment. Trace element patterns of the parental melt inferred from clinopyroxene analyses show negative anomalies for Ti, Zr, Hf, and a positive anomaly for Sr. These imply a subduction related geotectonic setting for the Uralian zoned mafic-ultramafic complexes. Ankaramites share many petrological and geochemical features with these complexes and could represent the parental melts of this class of mafic-ultramafic intrusions. Diopside from chromitites and cross cutting diopside veins in dunite has similar trace element patterns with LREE/HREE ratios (e.g. La/Lu = 5-60) much higher than those in diopside from all other lithologies. We suggest that the chromitites formed at high temperatures (800-900 C) during the waning stages of solidification as a result of the interaction of an incompatible element-rich melt or fluid with the dunite cumulates.

  18. 238U/235U determinations of some commonly used reference materials and U-bearing accessory minerals (Invited)

    NASA Astrophysics Data System (ADS)

    Condon, D.; Noble, S.; McLean, N.; Bowring, S. A.

    2009-12-01

    We have determined 238U/235U ratios for a suite of commonly used natural (CRM 112a, SRM 950a, HU-1) and synthetic (IRMM 184 and CRM U500) uranium reference materials in addition to several U-bearing accessory phases (zircon and monazite) by thermal ionisation mass-spectrometry (TIMS) using the IRMM 3636 233U-236U double spike to accurately correct for mass fractionation. The 238U/235U values for the natural uranium reference materials differ, by up to 0.1%, from the widely used consensus value (137.88) with all having 238U/235U values less than 137.88. Similarly, initial 238U/235U data from zircon and monazite yield 238U/235U values that are lower than the consensus value. The data obtained from U-bearing minerals is used to assess how the uncertainty in the 238U/235U ratio contributes to the systematic discordance observed in 238U/206Pb and 235U/207Pb dates (Mattinson, 2000; Schoene et al., 2006) which has traditionally been wholly attributed to error in the U decay constants. The 238U/235U determinations made on the synthetic reference materials yield results that are considerably more precise and accurate than the certified values (0.02% vs. 0.1% for CRM U500). The calibration of isotopic tracers used for U-daughter geochronology that are partially based upon these reference materials, and the resultant age determinations, will benefit from increased accuracy and precision. Mattinson, J.M., 2000. Revising the gold standardthe uranium decay constants of Jaffey et al., 1971. Eos Trans. AGU, Spring Meet. Suppl., Abstract V61A-02. Schoene B., Crowley J.L., Condon D.C., Schmitz M.D., Bowring S.A., 2006, Reassessing the uranium decay constants for geochronology using ID-TIMS U-Pb data. Geochimica et Cosmochimica Acta 70: 426-445

  19. Progress integrating ID-TIMS U-Pb geochronology with accessory mineral geochemistry: towards better accuracy and higher precision time

    NASA Astrophysics Data System (ADS)

    Schoene, B.; Samperton, K. M.; Crowley, J. L.; Cottle, J. M.

    2012-12-01

    It is increasingly common that hand samples of plutonic and volcanic rocks contain zircon with dates that span between zero and >100 ka. This recognition comes from the increased application of U-series geochronology on young volcanic rocks and the increased precision to better than 0.1% on single zircons by the U-Pb ID-TIMS method. It has thus become more difficult to interpret such complicated datasets in terms of ashbed eruption or magma emplacement, which are critical constraints for geochronologic applications ranging from biotic evolution and the stratigraphic record to magmatic and metamorphic processes in orogenic belts. It is important, therefore, to develop methods that aid in interpreting which minerals, if any, date the targeted process. One promising tactic is to better integrate accessory mineral geochemistry with high-precision ID-TIMS U-Pb geochronology. These dual constraints can 1) identify cogenetic populations of minerals, and 2) record magmatic or metamorphic fluid evolution through time. Goal (1) has been widely sought with in situ geochronology and geochemical analysis but is limited by low-precision dates. Recent work has attempted to bridge this gap by retrieving the typically discarded elution from ion exchange chemistry that precedes ID-TIMS U-Pb geochronology and analyzing it by ICP-MS (U-Pb TIMS-TEA). The result integrates geochemistry and high-precision geochronology from the exact same volume of material. The limitation of this method is the relatively coarse spatial resolution compared to in situ techniques, and thus averages potentially complicated trace element profiles through single minerals or mineral fragments. In continued work, we test the effect of this on zircon by beginning with CL imaging to reveal internal zonation and growth histories. This is followed by in situ LA-ICPMS trace element transects of imaged grains to reveal internal geochemical zonation. The same grains are then removed from grain-mount, fragmented, and analyzed by U-Pb TIMS-TEA. In situ trace element transects are used to model predicted TIMS-TEA trace element concentrations to test whether complicated trace element profiles undermine U-Pb TIMS-TEA data. We find good agreement between predicted and measured TIMS-TEA data, and can argue that the measured ID-TIMS U-Pb date corresponds to the time at which the geochemical signature measured by TIMS-TEA was acquired. Thus, in a hypothetical magma that is differentiating through AFC processes on timescales resolvable by geochronology, U-Pb TIMS-TEA should usually be a robust indicator of magma evolution through time. We present data from two ca. 40-30 Ma alpine intrusions from northern Italy: the southern Adamello batholith and the Bergell intrusion. The relatively young age of these intrusions permits uncertainties on individual zircon or zircon fragments as good as 10 ka, while zircon populations from individual hand samples often record zircon growth of >200 ka. Using the methodologies described above, we explore whether these zircons record in situ magmatic differentiation or introduction of antecrystic zircon to magma batches, and integrate these data to gain a better understanding of magma storage, differentiation and emplacement as a function of pressure, temperature, and time. These methods are a promising step towards interpreting complicated geochronologic data in ashbed samples as well through a better understanding of magmatic processes that precede eruption.

  20. Dating widespread tephras and their proximal equivalents by SIMS analysis of accessory mineral rims and by argon geochronology (Invited)

    NASA Astrophysics Data System (ADS)

    Vazquez, J. A.; Calvert, A. T.; Matthews, N. E.; Till, C.; Stelten, M. E.; Cooper, K. M.; Marcaida, M.; Lidzbarski, M. I.; Coble, M. A.

    2013-12-01

    Dating the deposition of regionally distributed ash beds whose vent-proximal equivalents are unknown, eroded, or buried by the products of younger eruptions may be challenging because the potassium-rich minerals necessary for high-precision argon geochronology are absent, too small, or altered. Where correlative proximal deposits can be identified, juvenile pyroclasts can be sampled to date their coarse-grained crystals. Zircon is the premier mineral for dating via the U-Pb system, and is commonly present in distal ash beds produced by eruption of silicic magma. However, zircon often yields ages older than eruption due to protracted crystallization in subvolcanic magma chambers, recycling of antecrysts, and/or inheritance. High-spatial resolution sampling of unpolished crystal faces on indium-mounted zircon and other accessory minerals via SIMS (ion microprobe) analysis provides U-Pb or 238U-230Th ages for the final few micrometers of rim crystallization, and represents an alternative technique for avoiding, or at least minimizing, the aforementioned problems. To explore the utility of this technique for dating distal tephras erupted from Quaternary volcanoes in the western United States, we performed U-Pb and U-Th dating of unpolished rims on zircon and allanite in tandem with sanidine 40Ar/39Ar dating for rhyolitic ash beds and proximal pyroclastic deposits or lava associated with a variety of Pleistocene eruptions. Tephra beds generated by late Pleistocene eruptions from Mono Craters, east-central California, are distributed over a significant area of the Great Basin, but their ages have been difficult to resolve due to contamination by sanidine xenocrysts and accidental lithic clasts. Rims on zircon and allanite from a regionally distributed tephra and its correlative rhyolite dome in the Mono Craters both yield U-Th isochron ages of ca. 21 ka, which are indistinguishable from the 40Ar/39Ar age for sanidine from the dome. A distinct tephra that erupted from Mono Craters during a pronounced geomagnetic excursion yields a zircon-allanite rim isochron age of ca. 42 ka [1], which matches the independent 40Ar/39Ar [2] and astronomical [3] age for the Laschamp Excursion. U-Pb dating of rims on zircon from proximal and distal Lava Creek Tuff, which erupted during the formation of Yellowstone caldera and blanketed much of the western United States, yields crystallization ages that match the 40Ar/39Ar age for associated sanidine. Postcaldera rhyolites that erupted within Yellowstone caldera between ca. 260 ka and ca. 70 ka exhibit similar concordance between U-Pb or U-Th ages for rims and their respective 40Ar/39Ar ages for sanidine, although variable amounts of crystal recycling are observed. Our results for various rhyolites indicate that high-spatial resolution dating of unpolished rims from zircon × allanite can effectively resolve eruption ages for distal tephras that elude dating by other techniques because of crystal recycling. [1] Vazquez and Lidzbarski, 2012, EPSL 357-358: 54, [2] Singer et al., 2009, EPSL 286: 80, [3] Channell et al., 2012, G-cubed 13: 1

  1. PAC investigation on the Zr-rich region of the PZT phase diagram

    NASA Astrophysics Data System (ADS)

    Alonso, R. E.; Ayala, A. P.; Lpez Garca, A. R.; Eiras, J. A.

    2007-02-01

    Previous studies using perturbed angular correlation (PAC) spectroscopy in the PbZr 1-xTi xO 3 (PZT) family of compounds show that whereas PbZrO 3 is characterized by a single probes site with a very well-defined hyperfine interaction, in PZT with x?0.1 the probes occupy two distributed sites. In this work, we investigate the Zr-rich region of the PZT phase diagram from x=0.02 up to x=0.08 using PAC in order to correlate the hyperfine parameters with the antiferroelectric-ferroelectric phase transition reported to occur at x=0.05. Two static electric quadrupole interactions, one of them fairly distributed, were detected over the whole Ti concentration range, and an abrupt change in the hyperfine parameters for 0.02< x<0.04 is observed. The behaviour of these parameters and the existence of two probe sites is discussed.

  2. Reviving Moribund Intrusive Complexes: Mafic Thermal Input, the Accessory Mineral Record, and the Pluton-Volcano Connection

    NASA Astrophysics Data System (ADS)

    Miller, C. F.; Gualda, G. A.; Padilla, A. J.; Pamukcu, A. S.; Claiborne, L. L.; Carley, T. L.; Flanagan, D. M.

    2011-12-01

    Intrusive and extrusive silicic systems spanning subduction zone, oceanic, and intracontinental settings and ranging from small, persistent eruptive centers to supereruptions show evidence for periodic thermal input. We present examples demonstrating that this input is responsible for remobilizing stagnant intrusions and apparently triggering eruptions. Mafic recharge is the evident heat source in some and implicated indirectly in others. Field relations, textures, accessory mineral zoning, and U-Pb and U-Th geochronology provide evidence for the inferred thermal reinvigoration of these systems: --Mount St. Helens, WA (active subduction zone volcano): Combined U-Th dating and elemental analysis demonstrates that zircon grew from residual silicic melt in relatively cool storage zones,10's to 100's of ky prior to eruption, and that its growth was episodic over the history of the system. Zircon crystals are thus samples of stagnant intrusive ("plutonic") parts of the St. Helens system, entrained in hotter ascending magmas during replenishment and local rejuvenation. --Highland Range volcanics & Searchlight pluton, NV (Miocene volcanic-plutonic system, incipient crustal extension): Evidence for late-stage mingling between intermediate and highly evolved, crystal-rich magma is preserved in the pluton, large dikes, a near-surface plug, and the final erupted products of the system, which were accompanied and followed by andesite lavas. Resorption and reaction rimming of sphene and large feldspar and quartz crystals in the dikes, plug, and volcanic rocks attest to heating. We infer that voluminous andesite invaded nearly-solid leucogranite, remobilized it, and triggered final eruptions. --Peach Spring Tuff, AZ, CA, NV (Miocene supereruption, incipient crustal extension): In contrast to phenocryst-poor rhyolitic outflow, intracaldera tuff is crystal-rich trachyte. Feldspar and sphene phenocrysts are extensively resorbed and rims of zircon crystals record a >100 degree C spike in T. We conclude that the trachyte tuff is cumulate from the base of the pre-eruption chamber that was remobilized by an intense heating event. Based on Rhyolite-MELTS modelling, we estimate that this cumulate was initially uneruptible "rigid sponge" with 10-20% melt. Sparse andesitic enclaves may reflect the source of thermal rejuvenation of the mush. --Austurhorn intrusive complex (Late Miocene) & historic silicic eruptions, Iceland (hyperactive mid-ocean rift adjacent to hot spot): Austurhorn records extensive mingling between basaltic and silicic magma. Zircon U-Pb data reveal a major episode of mafic intrusion at 6.0 Ma. This intrusion partially remobilized felsic material and induced a second episode of zircon growth in the dominantly 6.5 Ma complex. Historic silicic eruptions are also usually accompanied by mafic lavas and/or enclaves, and zircon records T significantly lower than erupting magma and ages of 10's of ka. Our experience suggests that thermal rejuvenation plays a vital role in the dynamic behavior of many and perhaps most silicic systems. It is further consistent with the hypothesis that such systems are long-lived but that their normal state is as melt-poor, immobile, uneruptible bodies that only sporadically spring to life.

  3. Mineral dissolution in the Cape Cod aquifer, Massachusetts, USA: I . Reaction stoichiometry and impact of accessory feldspar and glauconite on strontium isotopes, solute concentrations, and REY distribution

    NASA Astrophysics Data System (ADS)

    Bau, Michael; Alexander, Brian; Chesley, John T.; Dulski, Peter; Brantley, Susan L.

    2004-03-01

    To compare relative reaction rates of mineral dissolution in a mineralogically simple groundwater aquifer, we studied the controls on solute concentrations, Sr isotopes, and rare earth element and yttrium (REY) systematics in the Cape Cod aquifer. This aquifer comprises mostly carbonate-free Pleistocene sediments that are about 90% quartz with minor K-feldspar, plagioclase, glauconite, and Fe-oxides. Silica concentrations and pH in the groundwater increase systematically with increasing depth, while Sr isotopic ratios decrease. No clear relationship between 87Sr/ 86Sr and Sr concentration is observed. At all depths, the 87Sr/ 86Sr ratio of the groundwater is considerably lower than the Sr isotopic ratio of the bulk sediment or its K-feldspar component, but similar to that of a plagioclase-rich accessory separate obtained from the sediment. The Si- 87Sr/ 86Sr-depth relationships are consistent with dissolution of accessory plagioclase. In addition, solutes such as Sr, Ca, and particularly K show concentration spikes superimposed on their respective general trends. The K-Sr- 87Sr/ 86Sr systematics suggests that accessory glauconite is another major solute source to Cape Cod groundwater. Although the authigenic glauconite in the Cape Cod sediment is rich in Rb, it is low in in-grown radiogenic 87Sr because of its young Pleistocene age. The low 87Sr/ 86Sr ratios are consistent with equilibration of glauconite with seawater. The impact of glauconite is inferred to vary due to its variable abundance in the sediments. In the Cape Cod groundwater, the variation of REY concentrations with sampling depth resembles that of K and Rb, but differs from that of Ca and Sr. Shale-normalized REY patterns are light REY depleted, show negative Ce anomalies and super-chondritic Y/Ho ratios, but no Eu anomalies. REY input from feldspar, therefore, is insignificant compared to input from a K-Rb-bearing phase, inferred to be glauconite. These results emphasize that interpretation of groundwater chemistry, even in relatively simple aquifers, may be complicated by solute contributions from "exotic" accessory minerals such as glauconite. To detect such peculiarities, groundwater studies should combine the study of elemental concentration and isotopic composition of several solutes that show different geochemical behavior.

  4. Linking Trace Element Characteristics to U-Pb Ages of Accessory Minerals by In-Situ Analyses: Metamorphic Zircon Growth and Modification (Invited)

    NASA Astrophysics Data System (ADS)

    Moeller, A.

    2010-12-01

    Zircon is arguably the most studied accessory mineral in geochronological studies and has been lauded for its mechanical and chemical robustness for decades. However, detailed understanding of growth and modification are still emerging from, particularly from in-situ studies combining petrography and internal texture studies with trace element geochemical analyses and U-Pb dating by ionprobe or laser-ablation. Zircon modification and growth processes may be characterized by distinct geochemical signatures (fingerprints) and then linked to ages, which allows the detailed reconstruction of pressure-temperature-time paths and solves the question whether zircon actually dates the peak of metamorphic events. This contribution presents such combined evidence from different high-temperature granulites and shows that similar geochemical features in zircon may be produced from exchange with different major minerals (e.g. garnet, orthopyroxene). Reactive behavior and recrystallization of minerals with high zirconium trace element content controls the growth of zircon during metamorphism, which is more likely to occur during retrograde breakdown of the high-grade assemblages. Examples for the reactive behavior of zircon include CL-bright cracks and alteration zones produced by fluid-assisted alteration. Comparison of unaltered and altered parts of different grains suggest that while the type of process is evident from characteristic REE patterns, each pair of analyses is quite unique. Similar behaviour has been observed in recrystallized parts of magmatic zircon grains, characterized by loss of oscillatory zoning. I therefore conclude that particular trace element characteristics of the original zircon may be still visible in altered zones, thus preventing the general use of discrimination analyses to identify types of zircon, especially when these are the product of different metamorphic, solid-state (+-fluid) growth processes and not grown from a melt. Similar observations are liklely to govern the trace element characterisitcs of other important accessory phases, such as xenotime and monazite.

  5. Gahnite, chrysoberyl and beryl co-occurrence as accessory minerals in a highly evolved peraluminous pluton: The Belvs de Monroy leucogranite (Cceres, Spain)

    NASA Astrophysics Data System (ADS)

    Merino, E.; Villaseca, C.; Orejana, D.; Jeffries, T.

    2013-10-01

    Gahnite (ZnAl2O4), chrysoberyl (BeAl2O4) and beryl (Be3Al2Si6O18) have been found as accessory minerals in the external, highly fractionated, leucogranitic unit within the Hercynian reversely zoned Belvs de Monroy pluton (westernmost part of the Montes de Toledo batholith, Cceres, Spain). The highly felsic (SiO2 > 72 wt.%) and peraluminous (ACNK > 1.2) character of this leucogranite, together with the high content of some incompatible elements (F, Li, B, and P), seems to be a primary consequence of fractional crystallization in a magmatic closed-system. The high Be contents and Zn/FeTotal ratio (> 0.01) are relevant factors which have favoured the precipitation of these minerals. Moreover, the Si, Al, P, B, and F activities might be high, favouring the magmatic crystallization of such exotic mineral phases together with Be-rich cordierite, F-rich micas, sillimanite and Al-rich phosphates. In fact, the interplay between the silica and alumina activities likely controls the stabilization and the preferential crystallization of gahnite + chrysoberyl or beryl + chrysoberyl assemblages in mm-sized microdomains. The P-T crystallization conditions are constrained by the muscovite and sillimanite stability fields and the minimum granite Al2O3-saturated solidus, and have been estimated at temperatures between 670 and 700 C, and pressures between 1 and 2 kbar.

  6. Fluid-driven destabilization of REE-bearing accessory minerals in the granitic orthogneisses of North Veporic basement (Western Carpathians, Slovakia)

    NASA Astrophysics Data System (ADS)

    Ondrejka, M.; Putiš, M.; Uher, P.; Schmiedt, I.; Pukančík, L.; Konečný, P.

    2016-02-01

    A variety of rare earth elements-bearing (REE) accessory mineral breakdowns were identified in granitic orthogneisses from the pre-Alpine basement in the Veporic Unit, Central Western Carpathians, Slovakia. The Ordovician granitic rocks were subjected to Variscan metamorphic-anatectic overprint in amphibolite facies. Chemical U-Th-Pb dating of monazite-(Ce) and xenotime-(Y) reveal their primary magmatic Lower to Middle Ordovician age (monazite: 472 ± 4 to 468 ± 6 Ma and xenotime: 471 ± 13 Ma) and/or metamorphic-anatectic Variscan (Carboniferous, Visean) age (monazite: 345 ± 3 Ma). Younger fluid-rock interactions caused breakdown of primary magmatic and/or metamorphic-anatectic monazite-(Ce), xenotime-(Y), fluorapatite and allanite-(Ce). Fluid-induced breakdown of xenotime-(Y) produced numerous tiny uraninite inclusions within the altered xenotime-(Y) domains. The monazite-(Ce) breakdown produced secondary egg-shaped coronal structures of different stages with well-developed concentric mineral zones. Secondary sulphatian monazite-(Ce) (up to 0.15 apfu S) occasionally formed along fluorapatite fissures. Localized fluorapatite and monazite-(Ce) recrystallization resulted in a very fine-grained, non-stoichiometric mixture of REE-Y-Fe-Th-Ca-P-Si phases. Finally, allanite-(Ce) decomposed to secondary REE carbonate minerals (members of the bastnäsite and synchysite groups) and calcite in some places. Although the xenotime alteration and formation of uraninite inclusions is believed to be the result of dissolution-reprecipitation between early magmatic xenotime and late-magmatic granitic fluids, the monazite, apatite and allanite breakdowns were driven by metamorphic hydrothermal fluids. While earlier impact of post-magmatic fluids originated probably from Permian acidic volcanic and microgranitic veins crosscutting the orthogneisses, another fluid-rock interaction event most likely occurred during Late Cretaceous metamorphism in the Veporic basement and covering rocks. This stage indicates carbon-bearing fluids precipitating the carbonate minerals.

  7. Accessory Mineral U-Pb Ti-Zr Thermochronology of the Deep Crust of Zealandia: Rift, Breakup and Drift from 90-20 Ma

    NASA Astrophysics Data System (ADS)

    Beinlich, A.; Palin, J.; Cooper, A. F.

    2006-12-01

    Cenozoic alkaline mafic volcanics of eastern Otago were made famous in classic petrology and petrography texts coauthored by Francis Turner. Several locales have yielded mantle and crustal xenoliths including the Pigroot "mafic phonolite". Here, among abundant spinel lherzolite xenoliths, we discovered an undeformed cumulate gabbro composed of intermediate plagioclase and pargasitic amphibole with augite, ilmenite, magnetite, titanite (sphene) and accessory zircon and apatite. Major and trace elements indicate the rock crystallised from primitive alkaline magma, whereas the mineral assemblage indicates equilibration under amphibolite facies conditions at 5-9 kbar. Accessory mineral U-Pb Ti-Zr thermochronology by LA-ICP-MS on grain separates and in thin section reveals a T-t path that began with zircon crystallisation at 90±2 Ma (^{208}Pb-corrected 206Pb/238U, n=37, mswd=9.9) and 710±20°C (Ti-zircon geothermometer of Watson et al. 2006). Titanite dates (207Pb-corrected 206Pb/238U, n=49) and temperatures (Zr-titanite geothermometer of Hayden et al. 2006 at 7 kbar) form a linear array (r2=0.6) extending from 85 Ma, 830°C to 34 Ma, 760°C. The slope of this T-t array is inconsistent with diffusive loss of Pb and Zr from titanite (Cherniak, pers.comm.) and, together with REE data and reaction textures, indicates prolonged growth at the expense of plagioclase and ilmenite. Apatite U-Pb isotope data projected from the measured 207Pb/206Pb in plagioclase give a lower intercept age of 20±3 Ma (n=17, mswd=1.5) which overlaps the K-Ar age of the phonotephrite host lava (Coombs, pers.comm.). This remarkable xenolith records 1) crystallisation of alkaline mafic magma in the deep crust during early rifting of Zealandia from Gondwana around 90 Ma, 2) heating during continued lithospheric thinning 90-85 Ma, 3) slow cooling (≤2°C/my) for 50 my following continental breakup at 85 Ma, and 4) transport to the surface and thermal quenching at 20 Ma. Slow cooling of the deep crust recorded in the xenolith titanites is in excellent agreement with evidence from southern Zealandia mid-crust (Ar thermochronology) and surface (Waipounamu erosion surface) for tectonothermal stability from 85-35 Ma.

  8. Geochronology of the Martian meteorite Zagami revealed by U-Pb ion probe dating of accessory minerals

    NASA Astrophysics Data System (ADS)

    Zhou, Qin; Herd, Christopher D. K.; Yin, Qing-Zhu; Li, Xian-Hua; Wu, Fu-Yuan; Li, Qiu-Li; Liu, Yu; Tang, Guo-Qiang; McCoy, Timothy J.

    2013-07-01

    The precise chronology of geological events on Mars is hampered by the lack of absolute ages for the Martian timescale, and the significant uncertainties that result from the extrapolation of the lunar timescale to Mars (Hartmann and Neukum, 2001). Martian meteorites represent the only samples of Mars currently available. Attempts to identify source craters for the meteorites have thus far proven inconclusive (Hamilton et al., 2003; Lang et al., 2009; Mouginis-Mark and Boyce, 2012>), precluding their use in constraining the absolute Martian timescale. The majority of the known Martian meteorites are basalts ("shergottites"); all dated shergottites have mineral separate (Rb-Sr or Sm-Nd) ages of <600 Ma (Borg et al., 2005). Here we report a 238U/206Pb age of 182.7±6.9 Ma by ion microprobe analysis of baddeleyite (ZrO2) grains in the Zagami shergottite. There is no correlation between discordancy and baddeleyite grain location relative to shock metamorphism. Mineral petrography demonstrates that baddeleyite is the result of late-stage igneous crystallization, and Raman spectroscopy shows that baddeleyite has not been transformed by shock into preservable high-pressure polymorphs. Supported by an age of 153±81 Ma for phosphate grains, obtained using the same method, we conclude that Zagami crystallized at ~180 Ma, in agreement with previous results from mineral separate geochronology. Therefore, the shergottites represent igneous rocks preferentially ejected from young terrains on Mars in a small number of ejection events.

  9. Maruyamaite, a new K-dominant tourmaline coexisting with diamond -an important accessory mineral in UHP rocks

    NASA Astrophysics Data System (ADS)

    Shimizu, R.; Ogasawara, Y.

    2014-12-01

    Recently the K-dominant tourmaline with microdiamond inclusions from the Kokchetav Massif, Kazakhstan (Shimizu & Ogasawara, 2005), has been approved by IMA-CNMNC as a new end-member species of the tourmaline supergroup, maruyamaite (IMA 2013-123, Lussier et al., 2014: Min. Mag. V. 78, p. 550). Maruyamaite has an ideal chemical formula of K(MgAl2)(Al5Mg)(BO3)3(Si6O18)(OH)3O and is a unique K-dominant tourmaline species. Currently the occurrence of maruyamaite is limited from the Kokchetav Massif. Moreover, no K-rich dravitic tourmaline has been reported from other UHP terranes. This rarelity is probably due to the large ionic radius of K with respect to the X-site of tourmaline. The first synthesis of K-dominant tourmaline by Berryman et al. (2014) indicated that K-incorporation in tourmaline structure requires high-pressure and high K/Na conditions. A number of studies (e.g., Hwang et al., 2005) have shown that K-rich fluid had been present at the Kokchetav UHP stages and played an important role for the formation of metamorphic diamond and other UHP minerals such as K-rich clinopyroxene. The systematic chemical analysis combined with detailed inclusion study (Shimizu & Ogasawara, 2013) demonstrated that K in tourmaline decrease with pressure decrease in the diamond-bearing Kokchetav UHP rocks and the maruyamaite component can form continuous solid solutions with dravite-oxy-dravite-uvite tourmalines. The figure shows that microdiamond inclusions occur only in K-dominant core (maruyamaite) and the surrounding parts contain low-pressure minerals such as graphite and quartz. UHP partial melting was deduced for the genesis of the maruyamaite-bearing tourmaline-rich quartzofeldspathic rock from the heavy B-isotope composition of maruyamaite (Ota et al., 2008). Contrarily, Marschall et al. (2009) and Korsakov et al. (2009) insisted that K-rich tourmaline was not UHP phase because of the significantly young 40Ar/39Ar age compared to the peak metamorphism. However, the K-content of tourmaline used for their dating is not more than 1.6 wt% (i.e., the tourmaline was not maruyamaite but K-rich (oxy-) dravite), suggesting the age may represent a later event during exhumation. K-bearing tourmalines including maruyamaite could be a UHP indicator.

  10. Fatigue properties for the fracture strength of columnar accessory minerals embedded within metamorphic tectonites: implications for stress magnitude in continental crust at the depth of the brittle-plastic transition zone

    NASA Astrophysics Data System (ADS)

    Kimura, N.; Iwashita, N.; Masuda, T.

    2009-04-01

    1. Introduction Previous studies have compiled yield-strength profiles of continental lithosphere based on the results of laboratory measurements and numerical calculations; however, yield-strength values remain poorly constrained, especially at depths below the brittle-plastic transition zone. Recent studies by the authors have refined the microboudin technique for estimating palaeostress magnitude in the deep crust (> 10 km depth). This technique has the potential to provide important information on stress levels in the deep continental crust, an environment to which available in situ stress measurements and palaeopiezometric methods cannot be applied. In applying the microboudinage technique, obtaining an estimate of the palaeostress magnitude requires knowledge of the fracture strength of columnar accessory minerals (e.g., tourmaline, amphibole, and epidote) that are subjected to brittle fracturing during plastic deformation of the surrounding matrix minerals. The absolute magnitude of fracture strength is known to show a marked reduction in the case of fatigue fracture. Fatigue fracture falls into two categories: static fatigue and cyclic fatigue. In the field of experimental rock deformation, stress corrosion by water molecules (static fatigue) is commonly invoked as the mechanism of fatigue fracture; however, evidence of both static and cyclic fatigue has been reported from studies of natural geological samples. The present study focused on the fatigue properties of columnar accessory minerals at high temperatures, with the aim of improving the accuracy of estimates of natural palaeostress magnitude at depth in the crust. 2. Constant stress-rate test A constant stress-rate test was performed to determine the influence of static fatigue on the strength of columnar accessory minerals. The test was conducted under three-point bending with a span distance of 10 mm. Temperature conditions and the crosshead speed were set in the ranges of ambient to 600C, and 0.0005 to 0.2 mm/min, respectively. Pressure and relative humidity were set to room conditions. Tourmaline was chosen for testing (as representative of columnar accessory minerals embedded within metamorphic tectonites) because this is the only mineral for which crystals are available of sufficient size and quality. A total of 120 prism-shaped tourmaline test pieces (dimensions, 2212 mm) were prepared from a single tourmaline block collected from Minas Gerais, Brazil. The flexural strength of tourmaline shows a clear decrease with decreasing crosshead speed at ambient temperature (with n ? 15 as the static fatigue parameter); however, this trend weakens with increasing temperature (n > 50); that is, the influence of static fatigue on the strength of tourmaline decreases with increasing temperature. A comparable result has been reported for glass materials because of difficulties in the absorption of moisture on sample surfaces under high-temperature conditions. The fabric pattern of fracture planes developed in tourmaline specimens in the present study, which show rectilinear scratches, arrests, or Wallner lines on smooth surfaces, is similar to that observed for glass materials. 3. Fractography of naturally deformed minerals A striation-like' pattern resulting from cyclic fatigue fracture was observed by scanning electron microscope (SEM) analysis of a natural fracture plane developed within marble-hosted amphibole. The sample was collected from the eastern flank of the Red River shear zone (Luc Yen district), northern Vietnam. The brittle fracturing of amphibole (open fractures were filled by calcite, which deforms plastically) is considered to have occurred at 6 km depth at 25 Ma, based on geological criteria. 4. Order of stress magnitude in continental crust at the depth of the brittle-plastic transition zone Assuming that the fracture behaviour of columnar accessory minerals during the development of microboudinage is independent of the mineral species, the above results raise the possibility that the fracturing of columnar accessory mineral

  11. Rare-element granitic pegmatite of Miocene age emplaced in UHP rocks from Visole, Pohorje Mountains (Eastern Alps, Slovenia): accessory minerals, monazite and uraninite chemical dating

    NASA Astrophysics Data System (ADS)

    Uher, Pavel; Janák, Marian; Konečný, Patrik; Vrabec, Mirijam

    2014-04-01

    The granitic pegmatite dike intruded the Cretaceous UHP rocks at Visole, near Slovenska Bistrica, in the Pohorje Mountains (Slovenia). The rock consists mainly of K-feldspar, albite and quartz, subordinate muscovite and biotite, while the accessory minerals include spessartine-almandine, zircon, ferrocolumbite, fluorapatite, monazite- (Ce), uraninite, and magnetite. Compositions of garnet (Sps48-49Alm45-46Grs + And3-4 Prp1.5-2), metamict zircon with 3.5 to 7.8 wt. % HfO2 [atom. 100Hf/(Hf + Zr) = 3.3-7.7] and ferrocolumbite [atom. Mn/(Mn + Fe) = 0.27-0.43, Ta/(Ta + Nb) = 0.03-0.46] indicate a relatively low to medium degree of magmatic fractionation, characteristic of the muscovite - rare-element class or beryl-columbite subtype of the rare-element class pegmatites. Monazite-(Ce) reveals elevated Th and U contents (≤11 wt. % ThO2, ≤5 wt. % UO2). The monazite-garnet geothermometer shows a possible precipitation temperature of ~495 ± 30 °C at P~4 to 5 kbar. Chemical U-Th-Pb dating of the monazite yielded a Miocene age (17.2 ± 1.8 Ma), whereas uraninite gave a younger (~14 Ma) age. These ages are comtemporaneous with the main crystallization and emplacement of the Pohorje pluton and adjacent volcanic rocks (20 to 15 Ma), providing the first documented evidence of Neogene granitic pegmatites in the Eastern Alps. Consequently, the Visole pegmatite belongs to the youngest rare-element granitic pegmatite populations in Europe, together with the Paleogene pegmatite occurrences along the Periadriatic (Insubric) Fault System in the Alps and in the Rhodope Massif, as well as the Late Miocene to Pliocene pegmatites in the Tuscany magmatic province (mainly on the Island of Elba).

  12. Tracking hydrothermal alteration and mineralization in rock-forming and accessory minerals from the Lyon Mountain Granite and related iron oxide apatite (IOA) ores from the Adirondack Mountains, New York State

    NASA Astrophysics Data System (ADS)

    Buchanan, A.; Hanchar, J. M.; Steele-MacInnis, M. J.; Crowley, J. L.; Valley, P. M.; Fisher, C. M.; Fedo, C.; Piccoli, P. M.; Fournelle, J.

    2012-12-01

    The Lyon Mountain granite (LMG) is located in the northeastern Adirondack Mountains in New York State and hosts several low-titanium iron oxide apatite (IOA) ore deposits. The ores are predominately hosted by perthite bearing granite, which has been extensively altered to albite and microcline granite by Na and K metasomatism. This alteration results in several distinct groups of rocks that are dominated by either K or Na addition and a group composed of mixed Na and K addition. The different groups of altered perthite also lie on a trend suggestive of addition of Fe to each, consistent with a secondary mineralization origin. Previous work showed that the host rocks of the IOA ores have zircon with ~1150 Ma cores and 1060-1050 Ma rims and whole grains. This study aims to further constrain the timing of LMG emplacement, subsequent hydrothermal alteration, and Fe mineralization through geochemical analysis of the major, minor, and accessory phases and geochronology of accessory phases. SIMS analyses of zircon from several of the IOA ores reveal at least two periods of growth after LMG magmatism, at 1039 +/- 4.4 Ma and 1016 +/- 7 Ma to 1000 +/- 9 Ma. In situ EMPA and LA-ICPMS trace element analyses of the zircon rims and cores reveal that in two samples the zircon rims are enriched in rare earth elements (REE) compared to their cores, potentially pointing to a hydrothermal origin. Apatite has unusually high REE and Y concentrations (some total REE2O3 > 20 wt. % oxide and up to 8 wt. % oxide Y2O3), as does titanite, which allowed for the in situ analysis of Sm-Nd in apatite and titanite by LA-MC-ICP-MS. Initial Nd isotopic composition of both ore and host rock apatite and host rock titanite are consistent with published Adirondack initial Nd whole rock data, suggesting a local source for REE in these ores. EMPA and LA-ICPMS trace-element analyses of the major rock-forming minerals indicate that the feldspar have undergone Na-metasomatism and are depleted in REEs, perhaps signifying the "local source" and the mechanism of the REE enrichment in the LMG apatite in the IOA ores and host rocks. In contrast, the minor- and trace-element compositions of the other major rock-forming minerals (e.g., clinopyroxene and fayalite) as well as the zircon, and fluorite in the LMG have average igneous granitic trace- and minor-element compositions. To better understand the timing and origin of these post ~1050 Ma events, U-Pb ID-TIMS dating of apatite and titanite, and in situ LA-MC-ICPMS Sm-Nd analysis were done on the ore and host rock samples. Apatite dates range from 1050 to 850 Ma and titanite dates range from ~1015 to 970 Ma. There is significant age variation within samples and within grains. Titanite does not have sufficient spread for accurate Sm-Nd isochron dating and two ore-apatite samples have homogenous initial Nd isotopic and Sm-Nd elemental ratios, precluding calculation of Sm-Nd dates. A third ore sample shows a large spread in Sm-Nd and yields a Sm-Nd isochron date of ~850 Ma, in close agreement with U-Pb apatite dates. The Sm-Nd isochron and U-Pb apatite dates may reflect cooling recorded in these minerals or a younger hydrothermal mineralization event.

  13. Minerals

    MedlinePLUS

    Minerals are important for your body to stay healthy. Your body uses minerals for many different jobs, including building bones, making ... regulating your heartbeat. There are two kinds of minerals: macrominerals and trace minerals. Macrominerals are minerals your ...

  14. The Laser Accessory Market

    NASA Astrophysics Data System (ADS)

    Desai, Ashvin

    1988-09-01

    Wandering through the exhibit hall yesterday, I noticed that if you look at the laser companies and if you look at the accessory companies, there are pretty much the same number of accessory booths as well as the laser companies. There was one difference. Laser company booths are all sexy looking, very flashy, big booths. Whereas if you look at the accessories booths, they were small, not so prominent.

  15. Minerals

    MedlinePLUS

    ... Sledding, Skiing, Snowboarding, Skating Crushes What's a Booger? Minerals KidsHealth > For Kids > Minerals Print A A A Text Size What's in ... commercials for breakfast cereal always mention vitamins and minerals ? But when you think of minerals, food isn' ...

  16. Unusual tiny inclusions and accessory minerals: evidence of ultra-deep origin and low-pressure modification of the Luobusa podiform chromitites

    NASA Astrophysics Data System (ADS)

    Yamamoto, S.; Komiya, T.; Maruyama, S.

    2014-12-01

    Podiform chromitites in Luobusa ophiolite, southern Tibet, yield a wide variety of unusual minerals, including UHP minerals (micro-diamond, coesite, moissanite), highly reduced minerals (native elements, carbide, nitride, alloys), and crustal minerals (quartz, kyanite, zircon etc.). We report unusual silicate exsolution lamellae (coesite, clinopyroxene and MgSiO3 phase) in chromite (Yamamoto et al., 2009), and unusual ancient crustal zircons from chromitites (Yamamoto et al., 2013). To deduce long history of mantle convection, including both upward mantle-upwelling and horizontal movement, micro-inclusions preserved in refractory minerals can provide potential mineralogical and geochemical evidence. Coesite as an exsolution in chromite is diagnostic UHP evidence and clinopyroxene exsolution in chromite is possible evidence of former CF-type high-pressure polymorph of chromite (>380 km deep). More importantly, we found that silicate exsolutions in chromites are restricted in the nodular- and massive-type chromites, and that disseminated-type chromites have no exsolutions. Petrographically, nodular-type chromites with abundant silicate-exsolutions are gradually modified into disseminated-type chromites in their morphology and exsolution abundance. The characteristic of the disseminated-type chromite, such as their interstitial distribution, euhedral to subhedral morphology and absence of silicate-exsolutions, suggest their formation under the low-pressure magmatic conditions. Therefore, we propose that the podiform chromitites at the Luobusa retain evidence of their multi-stage development from ultrahigh-pressure environment to low-pressure magmatic processes, and tiny inclusions shielded by refractory minerals, such as chromite, diamond and zircon, record their prolonged history in the mantle.

  17. SARS coronavirus Accessory Proteins

    PubMed Central

    Narayanan, Krishna; Huang, Cheng; Makino, Shinji

    2009-01-01

    The emergence of the severe acute respiratory syndrome coronavirus (SARS-CoV) has led to a renewed interest in studying the role of accessory proteins in regulating coronavirus infections in the natural host. A significant body of evidence has accumulated in the area of SARS-CoV and host interactions that indicate that the accessory proteins might play an important role in modulating the host response to virus infection and thereby, contribute to pathogenesis. In this review, we have compiled the current knowledge about SARS-CoV accessory proteins, obtained from studies in cell culture systems, reverse genetics and animal models, to shed some light into the possible role of these proteins in the propagation and virulence of SARS-CoV in its natural host. We conclude by providing some questions for future studies that will greatly advance our knowledge about the biological significance and contributions of the accessory proteins in the development of SARS in humans. PMID:18045721

  18. Integrated single crystal laser ablation U/Pb and (U-Th)/He dating of detrital accessory minerals - Proof-of-concept studies of titanites and zircons from the Fish Canyon tuff

    NASA Astrophysics Data System (ADS)

    Horne, Alexandra M.; van Soest, Matthijs C.; Hodges, Kip V.; Tripathy-Lang, Alka; Hourigan, Jeremy K.

    2016-04-01

    Excimer laser technologies enable a rapid and effective approach to simultaneous U/Pb geochronology and (U-Th)/He thermochronology of a wide range of detrital accessory minerals. Here we describe the 'laser ablation double dating' (LADD) method and demonstrate its viability by applying it to zircon and titanite crystals from the well-characterized Fish Canyon tuff. We found that LADD dates for Fish Canyon zircon (206Pb/238U - 28.63 ± 0.11 Ma; (U-Th)/He - 28.38 ± 0.73 Ma) are statistically indistinguishable from those obtained through established, traditional methods of single-crystal dating. The same is true for Fish Canyon titanite LADD dates: 206Pb/238U - 28.08 ± 0.90 Ma; (U-Th)/He - 27.98 ± 0.86 Ma. As anticipated, given that LADD involves the analysis of smaller amounts of material than traditional methods, it yields dates with higher analytical uncertainty. However, this does not substantially reduce the utility of the results for most applications to detrital datasets. An important characteristic of LADD is that it encourages the chemical characterization of crystals by backscattered electron, cathodoluminescence, and/or Raman mapping prior to dating. In addition, by permitting the rapid and robust dating of crystals regardless of the degree of their abrasion during sedimentary transport, the method theoretically should yield dates that are more broadly representative of those of the entire population of detrital crystals in a natural sample.

  19. Minerals

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Fish require the same minerals or inorganic elements as terrestrial animals for tissue formation, osmoregulation and various metabolic functions. Those required in large quantities are termed macro- or major minerals and those required in small quantities are called micro- or trace minerals. Fish ca...

  20. Mineralogy and petrogenesis of a Ba-Ti-Zr-rich peralkaline dyke from ebkovice (Czech Republic): Recognition of the most lamproitic Variscan intrusion

    NASA Astrophysics Data System (ADS)

    Krm?ek, Luk; Cemprek, Jan; Havln, Ale; P?ichystal, Antonn; Houzar, Stanislav; Krm?kov, Michaela; Gadas, Petr

    2011-01-01

    A peralkaline, ultrapotassic dyke found at ebkovice (T?eb? district, western Moravia) is a mineralogically extreme member of a dyke swarm occurring along the south-eastern border of the Moldanubian Region of the Bohemian Massif. The dyke shows a simple zoning, with a very fine-grained marginal zone grading into a medium-grained central zone. It has a primary mineral assemblage of microcline and potassic amphiboles, with accessory apatite and altered phlogopite. The microcline exhibits an unusual red luminescence colour and pronounced substitution of Fe3+ for Al, with measured contents of Fe2O3 up to 8.5 wt.% (0.31 apfu Fe3+). Amphiboles have very high K (up to 0.99 apfu) and Si contents; their compositions follow an alkaline fractionation trend from potassic-richterite to potassic-magnesio-arfvedsonite, characterized by an increase of Na/K and a decrease of Ca, Mg, Fe2+ and Ti via heterovalent substitutions [B]Ca + [C](Mg,Fe2+) ? [B]Na + [C]Fe3+ and Ti + Mg ? 2Fe3+. The most evolved apatite is significantly enriched in SrO (up to 9.7 wt.%; 0.49 apfu Sr). The core of the dyke and late veinlets contain unique late- to post-magmatic Ba-Ti-Zr-bearing mineral assemblages of baotite, henrymeyerite, titanite, rutile, benitoite and bazirite. Anhedral baotite fills interstices distributed inhomogeneously in the dyke centre; it is locally replaced by a Ba-bearing titanite + henrymeyerite + rutile + quartz assemblage. Henrymeyerite (the second record in a lamproite) shows variable Fe/Ti ratios and represents a solid solution of the hepta- and hexatitanate components. Euhedral crystals of benitoite and bazirite are enclosed in the late-stage quartz-titanite-apatite veinlets in the fine-grained margin of the intrusion. In terms of a mineralogical-genetic classification, the ebkovice dyke can be considered as a new high-silica (~ 57 wt.% SiO2) variety of lamproite (variety ebkovice), and represents a unique expression of post-collisional potassic magmatism on the south-eastern border of the Bohemian Massif. The peralkaline dykes from this area show mineralogical and geochemical features similar to those of silica-rich orogenic lamproites emplaced at destructive plate margins. In terms of the modern classification of lamproites, the ebkovice dyke is the first lamproite recognised in the Variscan orogenic belt.

  1. The mineralogy of Ba- and Zr-rich alkaline pegmatites from Gordon Butte, Crazy Mountains (Montana, USA): comparisons between potassic and sodic agpaitic pegmatites

    NASA Astrophysics Data System (ADS)

    Chakhmouradian, Anton; Mitchell, Roger

    2002-01-01

    At Gordon Butte (Crazy Mountains, Montana), agpaitic nepheline-syenite pegmatites intrude potassic alkaline rocks (principally, malignites and nepheline microsyenites). All pegmatite veins are composed predominantly of potassium feldspar, nepheline, prismatic aegirine, barytolamprophyllite, wadeite, eudialyte, loparite-(Ce) and altered rinkite ("vudyavrite") embedded in spherulitic and fibrous aegirine. Well-differentiated veins contain "pockets" filled with calcite, fluorapatite, mangan-neptunite, Mn-Ti-enriched prismatic aegirine, calcium catapleiite, and an unidentified Ca-Ti silicate. The potassium feldspar corresponds to Ba-rich sanidine with relatively low Na contents. The nepheline contains low levels of SiO2 and elevated Fe contents. The compositions of nepheline cluster in the lower portion of the Morozewicz-Buerger convergence field, indicating low-temperature crystallization and/or chemical re-equilibration of this mineral. The association of sanidine with nearly stoichiometric nepheline is unusual for agpaitic rocks and probably reflects inhibition of Al/Si ordering in the feldspar by Ba. At least four types of clinopyroxene can be distinguished on the basis of their morphology and composition. All these types correspond to Al- and Ca-poor aegirine (typically <0.6 and 2.6 wt% Al2O3 and CaO, respectively). The overall evolutionary trend of clinopyroxene in the Gordon Butte rocks is from Fe-poor diopside to aegirine-augite in the malignites and nepheline microsyenites, and culminates with the pegmatitic aegirine. This trend is characteristic for potassic alkaline complexes and results from preferential partitioning of Fe2+ into biotite during the magmatic crystallization. Barytolamprophyllite in the pegmatites is primary (as opposed to deuteric); only a few crystals contain a core composed of lamprophyllite. The evolutionary history of the Gordon Butte pegmatites can be subdivided into primary, agpaitic, and deuteric stages. The earliest paragenesis to crystallize included accessory zircon and thorite. Sr-rich loparite also precipitated relatively early serving as a major repository for Sr, REE, and Nb. During the agpaitic stage, diverse titano- and zircono-silicates (barytolamprophyllite, eudialyte, wadeite, and rinkite, among others) consumed most of the Ba, Sr, Ti, Zr, and Nb still remaining in the melt. The final stage in the evolution of the pegmatites involved interaction of the earlier-formed mineral assemblages with deuteric fluids. In common with the Rocky Boy pegmatites, Sr-REE-Na-rich fluorapatite, Ba-Fe titanates and REE-bearing carbonates (ancylite, calcio-ancylite, and bastnsite-parisite series) are chief products of the deuteric stage. The alteration of the primary mineral assemblages by deuteric fluids also produced muscovite-zeolite pseudomorphs after nepheline, replacement of wadeite and eudialyte by catapleiite-group minerals, re-deposition of Ba in the form of hyalophane, baotite, and benitoite, and cation leaching from rinkite, eudialyte, and loparite. The mineralogy of the pegmatites from Gordon Butte, other potassic complexes, and sodic agpaitic occurrences is compared in detail.

  2. Minerals

    MedlinePLUS

    ... some of the minerals you get from food. Calcium Calcium is the top macromineral when it comes to ... on tasty food. Which foods are rich in calcium? dairy products, such as milk, cheese, and yogurt ...

  3. Crystallization of accessory phases in magmas by local saturation adjacent to phenocrysts

    USGS Publications Warehouse

    Bacon, C.R.

    1989-01-01

    Accessory minerals commonly occur attached to or included in the major crystalline phases of felsic and some intermediate igneous rocks. Apatite is particularly common as inclusions, but Fe-Ti oxides, pyrrhotite, zircon, monazite, chevkinite and xenotime are also known from silicic rocks. Accessories may nucleate near the host crystal/ liquid interface as a result of local saturation owing to formation of a differentiated chemical boundary layer in which accessory mineral solubility would be lower than in the surrounding liquid. Differentiation of this boundary layer would be greatest adjacent to ferromagnesian phenocrysts, especially Fe-Ti oxides; it is with oxides that accessories are most commonly associated in rocks. A boundary layer may develop if the crystal grows more rapidly than diffusion can transport incorporated and rejected elements to and from the phenocryst. Diffusion must dominate over convection as a mode of mass transfer near the advancing crystal/liquid interface in order for a boundary layer to exist. Accumulation of essential structural constituent elements of accessory minerals owing to their slow diffusion in evolved silicate melt also may force local saturation, but this is not a process that applies to all cases. Local saturation is an attractive mechanism for enhancing fractionation during crystallization differentiation. If accessory minerals attached to or included in phenocrysts formed because of local saturation, their host phenocrysts must have grown rapidly when accessories nucleated in comparison to lifetimes of magma reservoirs. Some inconsistencies remain in a local saturation origin for accessory phases that cannot be evaluated without additional information. ?? 1989.

  4. Accessories or necessities? Exploring consensus on usage of stoma accessories.

    PubMed

    Rudoni, Caroline; Dennis, Heather

    Usage and opinion of accessory products in stoma care vary enormously. The aim of this study was to identify what constitutes an accessory product and to find out whether there is any standardization regarding their recommendation. Views of both patients and stoma nurses were examined. Patients identify accessory products as being necessary both physically and psychologically in improving their quality of life. While stoma nurses identify that the psychological effects of having a stoma should never be underestimated, there is still concern regarding the cost of recommending these products and their clinical necessity. It would appear that clinical necessity is based on nurses' opinions and is not always evidence or research based. Since accessory products have been shown to be essential to many patients with a stoma, should stoma nurses be more empathetic when considering their recommendation? PMID:19966728

  5. Accessory drive for a turbine engine

    SciTech Connect

    Brogdon, J.W.; Allen, K.D.; Barton, J.S.; Hicks, R.J.

    1987-02-03

    This patent describes, in combination: a radial flow turbine engine having a main shaft and a casing with air inlets open radially at one end, and an accessory drive comprising: an accessory housing positioned axially adjacent the one end of the turbine engine casing, a gear ring rotatably mounted within the accessory housing, means for mechanically drivingly connecting the gear ring to the turbine main shaft, the connecting means comprising a planetary gear arrangement contained in the accessory housing, the accessory housing having apertures open to the gear ring and circumferentially spaced from each other, at least one accessory having a driven gear, and means for mounting the at least one accessory to the accessory housing so that the accessory registers with one of the plurality of apertures and so that the gear ring meshes with the driven gear, wherein each aperture is adapted for connection with a separate accessory.

  6. Accessory cells for ?-cell transplantation.

    PubMed

    Staels, W; De Groef, S; Heremans, Y; Coppens, V; Van Gassen, N; Leuckx, G; Van de Casteele, M; Van Riet, I; Luttun, A; Heimberg, H; De Leu, N

    2016-02-01

    Despite recent advances, insulin therapy remains a treatment, not a cure, for diabetes mellitus with persistent risk of glycaemic alterations and life-threatening complications. Restoration of the endogenous ?-cell mass through regeneration or transplantation offers an attractive alternative. Unfortunately, signals that drive ?-cell regeneration remain enigmatic and ?-cell replacement therapy still faces major hurdles that prevent its widespread application. Co-transplantation of accessory non-islet cells with islet cells has been shown to improve the outcome of experimental islet transplantation. This review will highlight current travails in ?-cell therapy and focuses on the potential benefits of accessory cells for islet transplantation in diabetes. PMID:26289770

  7. Teaching Techniques for Accessory Percussion

    ERIC Educational Resources Information Center

    Micallef, Ken

    2007-01-01

    Everyone is familiar with the main percussion instruments of the contemporary orchestra: bass drum, snare drum, suspended cymbal, vibraphone, and timpani. But as source material broadens, so do the demands placed on the percussion section. Accessory, or auxiliary percussion, can make the difference between a typical rendition of a well-known piece

  8. Teaching Techniques for Accessory Percussion

    ERIC Educational Resources Information Center

    Micallef, Ken

    2007-01-01

    Everyone is familiar with the main percussion instruments of the contemporary orchestra: bass drum, snare drum, suspended cymbal, vibraphone, and timpani. But as source material broadens, so do the demands placed on the percussion section. Accessory, or auxiliary percussion, can make the difference between a typical rendition of a well-known piece…

  9. 14 CFR 25.1163 - Powerplant accessories.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... Powerplant accessories. (a) Each engine mounted accessory must (1) Be approved for mounting on the engine involved; (2) Use the provisions on the engine for mounting; and (3) Be sealed to prevent contamination of the engine oil system and the accessory system. (b) Electrical equipment subject to arcing or...

  10. 14 CFR 25.1163 - Powerplant accessories.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... Powerplant accessories. (a) Each engine mounted accessory must (1) Be approved for mounting on the engine involved; (2) Use the provisions on the engine for mounting; and (3) Be sealed to prevent contamination of the engine oil system and the accessory system. (b) Electrical equipment subject to arcing or...

  11. 14 CFR 33.25 - Accessory attachments.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... drive splines, or coupling by engine oil, must include provisions for sealing to prevent unacceptable... STANDARDS: AIRCRAFT ENGINES Design and Construction; General 33.25 Accessory attachments. The engine must operate properly with the accessory drive and mounting attachments loaded. Each engine accessory drive...

  12. 14 CFR 27.1163 - Powerplant accessories.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... Powerplant accessories. (a) Each engine-mounted accessory must (1) Be approved for mounting on the engine involved; (2) Use the provisions on the engine for mounting; and (3) Be sealed in such a way as to prevent contamination of the engine oil system and the accessory system. (b) Unless other means are provided,...

  13. 14 CFR 33.25 - Accessory attachments.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... drive splines, or coupling by engine oil, must include provisions for sealing to prevent unacceptable... STANDARDS: AIRCRAFT ENGINES Design and Construction; General 33.25 Accessory attachments. The engine must operate properly with the accessory drive and mounting attachments loaded. Each engine accessory drive...

  14. 14 CFR 25.1167 - Accessory gearboxes.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 14 Aeronautics and Space 1 2014-01-01 2014-01-01 false Accessory gearboxes. 25.1167 Section 25... Accessory gearboxes. For airplanes equipped with an accessory gearbox that is not certificated as part of an engine— (a) The engine with gearbox and connecting transmissions and shafts attached must be subjected...

  15. 14 CFR 25.1167 - Accessory gearboxes.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 14 Aeronautics and Space 1 2013-01-01 2013-01-01 false Accessory gearboxes. 25.1167 Section 25... Accessory gearboxes. For airplanes equipped with an accessory gearbox that is not certificated as part of an engine— (a) The engine with gearbox and connecting transmissions and shafts attached must be subjected...

  16. 14 CFR 25.1167 - Accessory gearboxes.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 14 Aeronautics and Space 1 2010-01-01 2010-01-01 false Accessory gearboxes. 25.1167 Section 25... Accessory gearboxes. For airplanes equipped with an accessory gearbox that is not certificated as part of an engine— (a) The engine with gearbox and connecting transmissions and shafts attached must be subjected...

  17. 14 CFR 25.1167 - Accessory gearboxes.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 14 Aeronautics and Space 1 2011-01-01 2011-01-01 false Accessory gearboxes. 25.1167 Section 25... Accessory gearboxes. For airplanes equipped with an accessory gearbox that is not certificated as part of an engine— (a) The engine with gearbox and connecting transmissions and shafts attached must be subjected...

  18. 14 CFR 25.1167 - Accessory gearboxes.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 14 Aeronautics and Space 1 2012-01-01 2012-01-01 false Accessory gearboxes. 25.1167 Section 25... Accessory gearboxes. For airplanes equipped with an accessory gearbox that is not certificated as part of an engine— (a) The engine with gearbox and connecting transmissions and shafts attached must be subjected...

  19. 14 CFR 27.1163 - Powerplant accessories.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 14 Aeronautics and Space 1 2012-01-01 2012-01-01 false Powerplant accessories. 27.1163 Section 27.1163 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION AIRCRAFT AIRWORTHINESS STANDARDS: NORMAL CATEGORY ROTORCRAFT Powerplant Powerplant Controls and Accessories 27.1163 Powerplant accessories. (a)...

  20. Engine starter and accessory drive system

    SciTech Connect

    Stockton, T.R.

    1986-10-07

    An engine starter and accessory drive system is described which consists of: an accessory drive means; a planetary gearset having a sun gear driveably connected to the accessory drive means, a ring gear, a carrier and planet pinions rotatably mounted on the carrier, fixed to the engine crankshaft, meshing with the sun gear and with the ring gear; means for holding the ring gear against rotation; and a starter motor and first clutch means for providing a one-way driving connection between the motor and the accessory drive means.

  1. The Accessory Genome of Pseudomonas aeruginosa

    PubMed Central

    Kung, Vanderlene L.; Ozer, Egon A.; Hauser, Alan R.

    2010-01-01

    Summary: Pseudomonas aeruginosa strains exhibit significant variability in pathogenicity and ecological flexibility. Such interstrain differences reflect the dynamic nature of the P. aeruginosa genome, which is composed of a relatively invariable core genome and a highly variable accessory genome. Here we review the major classes of genetic elements comprising the P. aeruginosa accessory genome and highlight emerging themes in the acquisition and functional importance of these elements. Although the precise phenotypes endowed by the majority of the P. aeruginosa accessory genome have yet to be determined, rapid progress is being made, and a clearer understanding of the role of the P. aeruginosa accessory genome in ecology and infection is emerging. PMID:21119020

  2. Advanced Accessory Power Supply Topologies

    SciTech Connect

    Marlino, L.D.

    2010-06-15

    This Cooperative Research and Development Agreement (CRADA) began December 8, 2000 and ended September 30, 2009. The total funding provided by the Participant (General Motors Advanced Technology Vehicles [GM]) during the course of the CRADA totaled $1.2M enabling the Contractor (UT-Battelle, LLC [Oak Ridge National Laboratory, a.k.a. ORNL]) to contribute significantly to the joint project. The initial task was to work with GM on the feasibility of developing their conceptual approach of modifying major components of the existing traction inverter/drive to develop low cost, robust, accessory power. Two alternate methods for implementation were suggested by ORNL and both were proven successful through simulations and then extensive testing of prototypes designed and fabricated during the project. This validated the GM overall concept. Moreover, three joint U.S. patents were issued and subsequently licensed by GM. After successfully fulfilling the initial objective, the direction and duration of the CRADA was modified and GM provided funding for two additional tasks. The first new task was to provide the basic development for implementing a cascaded inverter technology into hybrid vehicles (including plug-in hybrid, fuel cell, and electric). The second new task was to continue the basic development for implementing inverter and converter topologies and new technology assessments for hybrid vehicle applications. Additionally, this task was to address the use of high temperature components in drive systems. Under this CRADA, ORNL conducted further research based on GM’s idea of using the motor magnetic core and windings to produce bidirectional accessory power supply that is nongalvanically coupled to the terminals of the high voltage dc-link battery of hybrid vehicles. In order not to interfere with the motor’s torque, ORNL suggested to use the zero-sequence, highfrequency harmonics carried by the main fundamental motor current for producing the accessory power. Two studies were conducted at ORNL. One was to put an additional winding in the motor slots to magnetically link with the high frequency of the controllable zero-sequence stator currents that do not produce any zero-sequence harmonic torques. The second approach was to utilize the corners of the square stator punching for the high-frequency transformers of the dc/dc inverter. Both approaches were successful. This CRADA validated the feasibility of GM’s desire to use the motor’s magnetic core and windings to produce bidirectional accessory power supply. Three joint U.S. patents with GM were issued to ORNL and GM by the U.S. Patent Office for the research results produced by this CRADA.

  3. Mechanical accessories for mobile teleoperators

    SciTech Connect

    Feldman, M.J.; Herndon, J.N.

    1985-01-01

    The choice of optimum mechanical accessories for mobile teleoperators involves matching the criteria for emergency response with the available technology. This paper presents a general background to teleoperations, a potpourri of the manipulator systems available, and an argument for force reflecting manipulation. The theme presented is that the accomplishment of humanlike endeavors in hostile environments will be most successful when man model capabilities are utilized. The application of recent electronic technology to manipulator development has made new tools available to be applied to emergency response activities. The development activities described are products of the Consolidated Fuel Reprocessing Program at the Oak Ridge National Laboratory. 13 refs., 7 figs.

  4. 47 CFR 15.27 - Special accessories.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... installation of the device that these special accessories must be used with the device. It is the... can reasonably be expected to have the capability to access information in that form. (b) If a device requiring special accessories is installed by or under the supervision of the party marketing the device,...

  5. Characterization of a Lolium multiflorum Accessory Chromosome

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Accessory chromosomes, also called B-chromosomes, have been reported in more than 1300 species of plants. Accessory chromosomes show numerical polymorphism and when present in high number, are known to negatively affect the growth and vigor of the plants, while in low numbers they may be beneficial...

  6. Three Accessories for a Rotating Platform.

    ERIC Educational Resources Information Center

    Riley, James A.; Fryer, Oscar G.

    1980-01-01

    Describes three accessories developed to be used in conjunction with the rotating platform or turntable. Three demonstrations using these accessories are included. These demonstrations are: (a) conservation of angular momentum; (b) gravity-defying goblets; and (c) direct measurement of centripetal force. (HM)

  7. 21 CFR 890.5925 - Traction accessory.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 21 Food and Drugs 8 2011-04-01 2011-04-01 false Traction accessory. 890.5925 Section 890.5925 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES PHYSICAL MEDICINE DEVICES Physical Medicine Therapeutic Devices § 890.5925 Traction accessory....

  8. 21 CFR 890.5925 - Traction accessory.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 21 Food and Drugs 8 2010-04-01 2010-04-01 false Traction accessory. 890.5925 Section 890.5925 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES PHYSICAL MEDICINE DEVICES Physical Medicine Therapeutic Devices § 890.5925 Traction accessory....

  9. 21 CFR 890.5925 - Traction accessory.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 21 Food and Drugs 8 2014-04-01 2014-04-01 false Traction accessory. 890.5925 Section 890.5925 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES PHYSICAL MEDICINE DEVICES Physical Medicine Therapeutic Devices § 890.5925 Traction accessory....

  10. 21 CFR 890.5925 - Traction accessory.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 21 Food and Drugs 8 2012-04-01 2012-04-01 false Traction accessory. 890.5925 Section 890.5925 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES PHYSICAL MEDICINE DEVICES Physical Medicine Therapeutic Devices § 890.5925 Traction accessory....

  11. 21 CFR 890.5925 - Traction accessory.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 21 Food and Drugs 8 2013-04-01 2013-04-01 false Traction accessory. 890.5925 Section 890.5925 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES PHYSICAL MEDICINE DEVICES Physical Medicine Therapeutic Devices § 890.5925 Traction accessory....

  12. 14 CFR 27.1163 - Powerplant accessories.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 14 Aeronautics and Space 1 2011-01-01 2011-01-01 false Powerplant accessories. 27.1163 Section 27.1163 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION AIRCRAFT... contamination of the engine oil system and the accessory system. (b) Unless other means are provided,...

  13. 14 CFR 27.1163 - Powerplant accessories.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 14 Aeronautics and Space 1 2014-01-01 2014-01-01 false Powerplant accessories. 27.1163 Section 27.1163 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION AIRCRAFT... contamination of the engine oil system and the accessory system. (b) Unless other means are provided,...

  14. Carcinoma in accessory axillary breast.

    PubMed

    Khanna, Seema; Mishra, Shashi Prakash; Kumar, Satendra; Khanna, Ajay Kumar

    2015-01-01

    We present a rare case of carcinoma developing in an accessory breast. The patient presented with a progressive lump in her right axilla for 1 year. On examination, there was a well-developed nipple areola complex in the right axilla overlying a hard, fixed 5 3 cm lump. On investigation, core biopsy revealed poorly differentiated carcinoma of the breast. Mammography also revealed features of a malignant lesion with skin and muscle infiltration. Neoadjuvant chemotherapy was administered followed by modified radical mastectomy after three cycles. Immunohistochemistry study showed positive status of oestrogen and progesterone receptors, and negative HER-2 neu. Three more cycles of chemotherapy along with 50 Gy radiotherapy were given in an adjuvant setting followed by hormone therapy. PMID:26260957

  15. 14 CFR 29.1163 - Powerplant accessories.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... continued rotation of an engine-driven cabin supercharger or any remote accessory driven by the engine will be a hazard if they malfunction, there must be means to prevent their hazardous rotation...

  16. 14 CFR 29.1163 - Powerplant accessories.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... continued rotation of an engine-driven cabin supercharger or any remote accessory driven by the engine will be a hazard if they malfunction, there must be means to prevent their hazardous rotation...

  17. 14 CFR 29.1163 - Powerplant accessories.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... continued rotation of an engine-driven cabin supercharger or any remote accessory driven by the engine will be a hazard if they malfunction, there must be means to prevent their hazardous rotation...

  18. 14 CFR 29.1163 - Powerplant accessories.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... continued rotation of an engine-driven cabin supercharger or any remote accessory driven by the engine will be a hazard if they malfunction, there must be means to prevent their hazardous rotation...

  19. 14 CFR 29.1163 - Powerplant accessories.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... continued rotation of an engine-driven cabin supercharger or any remote accessory driven by the engine will be a hazard if they malfunction, there must be means to prevent their hazardous rotation...

  20. 47 CFR 15.27 - Special accessories.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... manual is provided only in a form other than paper, such as on a computer disk or over the Internet, the... requiring special accessories is installed by or under the supervision of the party marketing the device,...

  1. 47 CFR 15.27 - Special accessories.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... manual is provided only in a form other than paper, such as on a computer disk or over the Internet, the... requiring special accessories is installed by or under the supervision of the party marketing the device,...

  2. 47 CFR 15.27 - Special accessories.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... manual is provided only in a form other than paper, such as on a computer disk or over the Internet, the... requiring special accessories is installed by or under the supervision of the party marketing the device,...

  3. Adaptable infrared surface plasmon resonance spectroscopy accessory.

    PubMed

    Menegazzo, Nicola; Kegel, Laurel L; Kim, Yoon-Chang; Allen, Derrick L; Booksh, Karl S

    2012-09-01

    A second generation prototype enabling surface plasmon resonance spectroscopic measurements in the infrared (IR) range is described. The new design (v2) uses the optical train (optics and detector) within conventional FT-IR spectrometers by confining dimensions of the accessory to space available within the sample compartment of the spectrometer. The v2 accessory builds upon knowledge gained from a previous version that was based on a modified commercial variable angle spectroscopic accessory and addresses observed limitations of the original design-improved temporal stability and measurement acquisition speed, crucial to biomolecular binding studies, as well as optical flexibility, a requirement for investigations of novel plasmon-supporting materials. Different aspects of the accessory, including temporal stability, mechanical resilience, and sensitivity to changes in refractive index of a sample were evaluated and presented in this contribution. PMID:23020425

  4. Adaptable infrared surface plasmon resonance spectroscopy accessory

    NASA Astrophysics Data System (ADS)

    Menegazzo, Nicola; Kegel, Laurel L.; Kim, Yoon-Chang; Allen, Derrick L.; Booksh, Karl S.

    2012-09-01

    A second generation prototype enabling surface plasmon resonance spectroscopic measurements in the infrared (IR) range is described. The new design (v2) uses the optical train (optics and detector) within conventional FT-IR spectrometers by confining dimensions of the accessory to space available within the sample compartment of the spectrometer. The v2 accessory builds upon knowledge gained from a previous version that was based on a modified commercial variable angle spectroscopic accessory and addresses observed limitations of the original designimproved temporal stability and measurement acquisition speed, crucial to biomolecular binding studies, as well as optical flexibility, a requirement for investigations of novel plasmon-supporting materials. Different aspects of the accessory, including temporal stability, mechanical resilience, and sensitivity to changes in refractive index of a sample were evaluated and presented in this contribution.

  5. 21 CFR 878.4960 - Operating tables and accessories and operating chairs and accessories.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 21 Food and Drugs 8 2011-04-01 2011-04-01 false Operating tables and accessories and operating chairs and accessories. 878.4960 Section 878.4960 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES GENERAL AND PLASTIC SURGERY DEVICES...

  6. 21 CFR 878.4960 - Operating tables and accessories and operating chairs and accessories.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 21 Food and Drugs 8 2012-04-01 2012-04-01 false Operating tables and accessories and operating chairs and accessories. 878.4960 Section 878.4960 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES GENERAL AND PLASTIC SURGERY DEVICES...

  7. 21 CFR 878.4950 - Manual operating table and accessories and manual operating chair and accessories.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 21 Food and Drugs 8 2013-04-01 2013-04-01 false Manual operating table and accessories and manual operating chair and accessories. 878.4950 Section 878.4950 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES GENERAL AND PLASTIC SURGERY...

  8. 21 CFR 878.4950 - Manual operating table and accessories and manual operating chair and accessories.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 21 Food and Drugs 8 2014-04-01 2014-04-01 false Manual operating table and accessories and manual operating chair and accessories. 878.4950 Section 878.4950 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES GENERAL AND PLASTIC SURGERY...

  9. 21 CFR 878.4950 - Manual operating table and accessories and manual operating chair and accessories.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 21 Food and Drugs 8 2011-04-01 2011-04-01 false Manual operating table and accessories and manual operating chair and accessories. 878.4950 Section 878.4950 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES GENERAL AND PLASTIC SURGERY...

  10. 21 CFR 878.4960 - Operating tables and accessories and operating chairs and accessories.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 21 Food and Drugs 8 2013-04-01 2013-04-01 false Operating tables and accessories and operating chairs and accessories. 878.4960 Section 878.4960 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES GENERAL AND PLASTIC SURGERY DEVICES...

  11. 21 CFR 878.4950 - Manual operating table and accessories and manual operating chair and accessories.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 21 Food and Drugs 8 2012-04-01 2012-04-01 false Manual operating table and accessories and manual operating chair and accessories. 878.4950 Section 878.4950 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES GENERAL AND PLASTIC SURGERY...

  12. 21 CFR 878.4960 - Operating tables and accessories and operating chairs and accessories.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 21 Food and Drugs 8 2014-04-01 2014-04-01 false Operating tables and accessories and operating chairs and accessories. 878.4960 Section 878.4960 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES GENERAL AND PLASTIC SURGERY DEVICES...

  13. 21 CFR 878.4960 - Operating tables and accessories and operating chairs and accessories.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 21 Food and Drugs 8 2010-04-01 2010-04-01 false Operating tables and accessories and operating chairs and accessories. 878.4960 Section 878.4960 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES GENERAL AND PLASTIC SURGERY DEVICES...

  14. 21 CFR 878.4950 - Manual operating table and accessories and manual operating chair and accessories.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 21 Food and Drugs 8 2010-04-01 2010-04-01 false Manual operating table and accessories and manual operating chair and accessories. 878.4950 Section 878.4950 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES GENERAL AND PLASTIC SURGERY...

  15. Controlled Speed Accessory Drive demonstration program

    NASA Technical Reports Server (NTRS)

    Hoehn, F. W.

    1981-01-01

    A Controlled Speed Accessory Drive System was examined in an effort to improve the fuel economy of passenger cars. Concept feasibility and the performance of a typical system during actual road driving conditions were demonstrated. The CSAD system is described as a mechanical device which limits engine accessory speeds, thereby reducing parasitic horsepower losses and improving overall vehicle fuel economy. Fuel consumption data were compiled for fleets of GSA vehicles. Various motor pool locations were selected, each representing different climatic conditions. On the basis of a total accumulated fleet usage of nearly three million miles, an overall fuel economy improvement of 6 percent to 7 percent was demonstrated. Coincident chassis dynamometer tests were accomplished on selected vehicles to establish the effect of different accessory drive systems on exhaust emissions, and to evaluate the magnitude of the mileage benefits which could be derived.

  16. The melanocortin receptors and their accessory proteins

    PubMed Central

    Ramachandrappa, Shwetha; Gorrigan, Rebecca J.; Clark, Adrian J. L.; Chan, Li F.

    2013-01-01

    The five melanocortin receptors (MCRs) named MC1R–MC5R have diverse physiological roles encompassing pigmentation, steroidogenesis, energy homeostasis and feeding behavior as well as exocrine function. Since their identification almost 20 years ago much has been learnt about these receptors. As well as interacting with their endogenous ligands the melanocortin peptides, there is now a growing list of important peptides that can modulate the way these receptors signal, acting as agonists, antagonists, and inverse agonists. The discovery of melanocortin 2 receptor accessory proteins as a novel accessory factor to the MCRs provides further insight into the regulation of these important G protein-coupled receptor. PMID:23404466

  17. 14 CFR 33.25 - Accessory attachments.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... STANDARDS: AIRCRAFT ENGINES Design and Construction; General § 33.25 Accessory attachments. The engine must... leakage from, the engine interior. A drive and mounting attachment requiring lubrication for external... connection. The design of the engine must allow for the examination, adjustment, or removal of each...

  18. 21 CFR 890.3910 - Wheelchair accessory.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 21 Food and Drugs 8 2011-04-01 2011-04-01 false Wheelchair accessory. 890.3910 Section 890.3910 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES PHYSICAL MEDICINE DEVICES Physical Medicine Prosthetic Devices § 890.3910...

  19. 21 CFR 890.3910 - Wheelchair accessory.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 21 Food and Drugs 8 2014-04-01 2014-04-01 false Wheelchair accessory. 890.3910 Section 890.3910 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES PHYSICAL MEDICINE DEVICES Physical Medicine Prosthetic Devices § 890.3910...

  20. 21 CFR 890.3910 - Wheelchair accessory.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 21 Food and Drugs 8 2012-04-01 2012-04-01 false Wheelchair accessory. 890.3910 Section 890.3910 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES PHYSICAL MEDICINE DEVICES Physical Medicine Prosthetic Devices § 890.3910...

  1. 21 CFR 890.3910 - Wheelchair accessory.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 21 Food and Drugs 8 2013-04-01 2013-04-01 false Wheelchair accessory. 890.3910 Section 890.3910 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES PHYSICAL MEDICINE DEVICES Physical Medicine Prosthetic Devices § 890.3910...

  2. 21 CFR 890.3910 - Wheelchair accessory.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 21 Food and Drugs 8 2010-04-01 2010-04-01 false Wheelchair accessory. 890.3910 Section 890.3910 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES PHYSICAL MEDICINE DEVICES Physical Medicine Prosthetic Devices § 890.3910...

  3. 14 CFR 23.1163 - Powerplant accessories.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... continued operation of the engine must be provided. (e) Each accessory driven by a gearbox that is not approved as part of the powerplant driving the gearbox must— (1) Have torque limiting means to prevent the... gearbox for mounting; and (3) Be sealed to prevent contamination of the gearbox oil system and...

  4. 14 CFR 23.1163 - Powerplant accessories.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... continued operation of the engine must be provided. (e) Each accessory driven by a gearbox that is not approved as part of the powerplant driving the gearbox must— (1) Have torque limiting means to prevent the... gearbox for mounting; and (3) Be sealed to prevent contamination of the gearbox oil system and...

  5. 14 CFR 23.1163 - Powerplant accessories.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... continued operation of the engine must be provided. (e) Each accessory driven by a gearbox that is not approved as part of the powerplant driving the gearbox must— (1) Have torque limiting means to prevent the... gearbox for mounting; and (3) Be sealed to prevent contamination of the gearbox oil system and...

  6. 14 CFR 23.1163 - Powerplant accessories.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... continued operation of the engine must be provided. (e) Each accessory driven by a gearbox that is not approved as part of the powerplant driving the gearbox must— (1) Have torque limiting means to prevent the... gearbox for mounting; and (3) Be sealed to prevent contamination of the gearbox oil system and...

  7. 14 CFR 23.1163 - Powerplant accessories.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... continued operation of the engine must be provided. (e) Each accessory driven by a gearbox that is not approved as part of the powerplant driving the gearbox must— (1) Have torque limiting means to prevent the... gearbox for mounting; and (3) Be sealed to prevent contamination of the gearbox oil system and...

  8. Electronic Position Sensor for Power Operated Accessory

    DOEpatents

    Haag, Ronald H.; Chia, Michael I.

    2005-05-31

    An electronic position sensor for use with a power operated vehicle accessory, such as a power liftgate. The position sensor includes an elongated resistive circuit that is mounted such that it is stationary and extends along the path of a track portion of the power operated accessory. The position sensor further includes a contact nub mounted to a link member that moves within the track portion such that the contact nub is slidingly biased against the elongated circuit. As the link member moves under the force of a motor-driven output gear, the contact nub slides along the surface of the resistive circuit, thereby affecting the overall resistance of the circuit. The position sensor uses the overall resistance to provide an electronic position signal to an ECU, wherein the signal is indicative of the absolute position of the power operated accessory. Accordingly, the electronic position sensor is capable of providing an electronic signal that enables the ECU to track the absolute position of the power operated accessory.

  9. 21 CFR 878.4160 - Surgical camera and accessories.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 21 Food and Drugs 8 2013-04-01 2013-04-01 false Surgical camera and accessories. 878.4160 Section... (CONTINUED) MEDICAL DEVICES GENERAL AND PLASTIC SURGERY DEVICES Surgical Devices § 878.4160 Surgical camera and accessories. (a) Identification. A surgical camera and accessories is a device intended to be...

  10. 21 CFR 878.4160 - Surgical camera and accessories.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 21 Food and Drugs 8 2010-04-01 2010-04-01 false Surgical camera and accessories. 878.4160 Section... (CONTINUED) MEDICAL DEVICES GENERAL AND PLASTIC SURGERY DEVICES Surgical Devices § 878.4160 Surgical camera and accessories. (a) Identification. A surgical camera and accessories is a device intended to be...

  11. 21 CFR 878.4160 - Surgical camera and accessories.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 21 Food and Drugs 8 2014-04-01 2014-04-01 false Surgical camera and accessories. 878.4160 Section... (CONTINUED) MEDICAL DEVICES GENERAL AND PLASTIC SURGERY DEVICES Surgical Devices § 878.4160 Surgical camera and accessories. (a) Identification. A surgical camera and accessories is a device intended to be...

  12. 21 CFR 878.4160 - Surgical camera and accessories.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 21 Food and Drugs 8 2012-04-01 2012-04-01 false Surgical camera and accessories. 878.4160 Section... (CONTINUED) MEDICAL DEVICES GENERAL AND PLASTIC SURGERY DEVICES Surgical Devices § 878.4160 Surgical camera and accessories. (a) Identification. A surgical camera and accessories is a device intended to be...

  13. 21 CFR 876.5540 - Blood access device and accessories.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 21 Food and Drugs 8 2010-04-01 2010-04-01 false Blood access device and accessories. 876.5540... (CONTINUED) MEDICAL DEVICES GASTROENTEROLOGY-UROLOGY DEVICES Therapeutic Devices § 876.5540 Blood access device and accessories. (a) Identification. A blood access device and accessories is a device intended...

  14. 21 CFR 876.5540 - Blood access device and accessories.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 21 Food and Drugs 8 2011-04-01 2011-04-01 false Blood access device and accessories. 876.5540... (CONTINUED) MEDICAL DEVICES GASTROENTEROLOGY-UROLOGY DEVICES Therapeutic Devices § 876.5540 Blood access device and accessories. (a) Identification. A blood access device and accessories is a device intended...

  15. 21 CFR 878.3925 - Plastic surgery kit and accessories.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 21 Food and Drugs 8 2011-04-01 2011-04-01 false Plastic surgery kit and accessories. 878.3925... (CONTINUED) MEDICAL DEVICES GENERAL AND PLASTIC SURGERY DEVICES Prosthetic Devices § 878.3925 Plastic surgery kit and accessories. (a) Identification. A plastic surgery kit and accessories is a device intended...

  16. 21 CFR 878.3925 - Plastic surgery kit and accessories.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 21 Food and Drugs 8 2012-04-01 2012-04-01 false Plastic surgery kit and accessories. 878.3925... (CONTINUED) MEDICAL DEVICES GENERAL AND PLASTIC SURGERY DEVICES Prosthetic Devices § 878.3925 Plastic surgery kit and accessories. (a) Identification. A plastic surgery kit and accessories is a device intended...

  17. 21 CFR 878.3925 - Plastic surgery kit and accessories.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 21 Food and Drugs 8 2014-04-01 2014-04-01 false Plastic surgery kit and accessories. 878.3925... (CONTINUED) MEDICAL DEVICES GENERAL AND PLASTIC SURGERY DEVICES Prosthetic Devices § 878.3925 Plastic surgery kit and accessories. (a) Identification. A plastic surgery kit and accessories is a device intended...

  18. 21 CFR 878.3925 - Plastic surgery kit and accessories.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 21 Food and Drugs 8 2010-04-01 2010-04-01 false Plastic surgery kit and accessories. 878.3925... (CONTINUED) MEDICAL DEVICES GENERAL AND PLASTIC SURGERY DEVICES Prosthetic Devices § 878.3925 Plastic surgery kit and accessories. (a) Identification. A plastic surgery kit and accessories is a device intended...

  19. 21 CFR 878.3925 - Plastic surgery kit and accessories.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 21 Food and Drugs 8 2013-04-01 2013-04-01 false Plastic surgery kit and accessories. 878.3925... (CONTINUED) MEDICAL DEVICES GENERAL AND PLASTIC SURGERY DEVICES Prosthetic Devices § 878.3925 Plastic surgery kit and accessories. (a) Identification. A plastic surgery kit and accessories is a device intended...

  20. 19 CFR 10.537 - Accessories, spare parts, or tools.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 19 Customs Duties 1 2010-04-01 2010-04-01 false Accessories, spare parts, or tools. 10.537 Section... Free Trade Agreement Rules of Origin 10.537 Accessories, spare parts, or tools. Accessories, spare parts, or tools that are delivered with a good and that form part of the good's standard...

  1. 21 CFR 876.5900 - Ostomy pouch and accessories.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 21 Food and Drugs 8 2012-04-01 2012-04-01 false Ostomy pouch and accessories. 876.5900 Section 876... accessories. (a) Identification. An ostomy pouch and accessories is a device that consists of a bag that is... colostomy appliance, ostomy collector, colostomy pouch, urinary ileostomy bag, urine collecting...

  2. 21 CFR 876.5900 - Ostomy pouch and accessories.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 21 Food and Drugs 8 2010-04-01 2010-04-01 false Ostomy pouch and accessories. 876.5900 Section 876... accessories. (a) Identification. An ostomy pouch and accessories is a device that consists of a bag that is... colostomy appliance, ostomy collector, colostomy pouch, urinary ileostomy bag, urine collecting...

  3. 21 CFR 868.5860 - Pressure tubing and accessories.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 21 Food and Drugs 8 2014-04-01 2014-04-01 false Pressure tubing and accessories. 868.5860 Section... (CONTINUED) MEDICAL DEVICES ANESTHESIOLOGY DEVICES Therapeutic Devices 868.5860 Pressure tubing and accessories. (a) Identification. Pressure tubing and accessories are flexible or rigid devices intended...

  4. 21 CFR 868.5860 - Pressure tubing and accessories.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 21 Food and Drugs 8 2012-04-01 2012-04-01 false Pressure tubing and accessories. 868.5860 Section... (CONTINUED) MEDICAL DEVICES ANESTHESIOLOGY DEVICES Therapeutic Devices 868.5860 Pressure tubing and accessories. (a) Identification. Pressure tubing and accessories are flexible or rigid devices intended...

  5. 21 CFR 868.5860 - Pressure tubing and accessories.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 21 Food and Drugs 8 2011-04-01 2011-04-01 false Pressure tubing and accessories. 868.5860 Section... (CONTINUED) MEDICAL DEVICES ANESTHESIOLOGY DEVICES Therapeutic Devices 868.5860 Pressure tubing and accessories. (a) Identification. Pressure tubing and accessories are flexible or rigid devices intended...

  6. 14 CFR 25.1192 - Engine accessory section diaphragm.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 14 Aeronautics and Space 1 2011-01-01 2011-01-01 false Engine accessory section diaphragm. 25.1192....1192 Engine accessory section diaphragm. For reciprocating engines, the engine power section and all portions of the exhaust system must be isolated from the engine accessory compartment by a diaphragm...

  7. 14 CFR 25.1192 - Engine accessory section diaphragm.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 14 Aeronautics and Space 1 2014-01-01 2014-01-01 false Engine accessory section diaphragm. 25.1192....1192 Engine accessory section diaphragm. For reciprocating engines, the engine power section and all portions of the exhaust system must be isolated from the engine accessory compartment by a diaphragm...

  8. 14 CFR 25.1192 - Engine accessory section diaphragm.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 14 Aeronautics and Space 1 2010-01-01 2010-01-01 false Engine accessory section diaphragm. 25.1192....1192 Engine accessory section diaphragm. For reciprocating engines, the engine power section and all portions of the exhaust system must be isolated from the engine accessory compartment by a diaphragm...

  9. 21 CFR 870.4200 - Cardiopulmonary bypass accessory equipment.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 21 Food and Drugs 8 2010-04-01 2010-04-01 false Cardiopulmonary bypass accessory equipment. 870... Cardiopulmonary bypass accessory equipment. (a) Identification. Cardiopulmonary bypass accessory equipment is a device that has no contact with blood and that is used in the cardiopulmonary bypass circuit to...

  10. 21 CFR 870.4200 - Cardiopulmonary bypass accessory equipment.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 21 Food and Drugs 8 2011-04-01 2011-04-01 false Cardiopulmonary bypass accessory equipment. 870... Cardiopulmonary bypass accessory equipment. (a) Identification. Cardiopulmonary bypass accessory equipment is a device that has no contact with blood and that is used in the cardiopulmonary bypass circuit to...

  11. 21 CFR 876.5010 - Biliary catheter and accessories.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 21 Food and Drugs 8 2010-04-01 2010-04-01 false Biliary catheter and accessories. 876.5010 Section... (CONTINUED) MEDICAL DEVICES GASTROENTEROLOGY-UROLOGY DEVICES Therapeutic Devices 876.5010 Biliary catheter and accessories. (a) Identification. A biliary catheter and accessories is a tubular flexible...

  12. 21 CFR 876.5130 - Urological catheter and accessories.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 21 Food and Drugs 8 2010-04-01 2010-04-01 false Urological catheter and accessories. 876.5130... catheter and accessories. (a) Identification. A urological catheter and accessories is a flexible tubular... generic type of device includes radiopaque urological catheters, ureteral catheters, urethral...

  13. 21 CFR 864.3600 - Microscopes and accessories.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 21 Food and Drugs 8 2012-04-01 2012-04-01 false Microscopes and accessories. 864.3600 Section 864.3600 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES HEMATOLOGY AND PATHOLOGY DEVICES Pathology Instrumentation and Accessories § 864.3600 Microscopes and accessories....

  14. 21 CFR 864.3600 - Microscopes and accessories.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 21 Food and Drugs 8 2014-04-01 2014-04-01 false Microscopes and accessories. 864.3600 Section 864.3600 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES HEMATOLOGY AND PATHOLOGY DEVICES Pathology Instrumentation and Accessories § 864.3600 Microscopes and accessories....

  15. 21 CFR 864.3600 - Microscopes and accessories.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 21 Food and Drugs 8 2013-04-01 2013-04-01 false Microscopes and accessories. 864.3600 Section 864.3600 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES HEMATOLOGY AND PATHOLOGY DEVICES Pathology Instrumentation and Accessories § 864.3600 Microscopes and accessories....

  16. 21 CFR 876.5980 - Gastrointestinal tube and accessories.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 21 Food and Drugs 8 2010-04-01 2010-04-01 false Gastrointestinal tube and accessories. 876.5980... tube and accessories. (a) Identification. A gastrointestinal tube and accessories is a device that..., gastrointestinal string and tubes to locate internal bleeding, double lumen tube for intestinal decompression...

  17. 21 CFR 876.5980 - Gastrointestinal tube and accessories.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 21 Food and Drugs 8 2014-04-01 2014-04-01 false Gastrointestinal tube and accessories. 876.5980... tube and accessories. (a) Identification. A gastrointestinal tube and accessories is a device that..., gastrointestinal string and tubes to locate internal bleeding, double lumen tube for intestinal decompression...

  18. 21 CFR 876.5980 - Gastrointestinal tube and accessories.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 21 Food and Drugs 8 2012-04-01 2012-04-01 false Gastrointestinal tube and accessories. 876.5980... tube and accessories. (a) Identification. A gastrointestinal tube and accessories is a device that..., gastrointestinal string and tubes to locate internal bleeding, double lumen tube for intestinal decompression...

  19. 21 CFR 876.5980 - Gastrointestinal tube and accessories.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 21 Food and Drugs 8 2011-04-01 2011-04-01 false Gastrointestinal tube and accessories. 876.5980... tube and accessories. (a) Identification. A gastrointestinal tube and accessories is a device that..., gastrointestinal string and tubes to locate internal bleeding, double lumen tube for intestinal decompression...

  20. 21 CFR 876.5980 - Gastrointestinal tube and accessories.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 21 Food and Drugs 8 2013-04-01 2013-04-01 false Gastrointestinal tube and accessories. 876.5980... tube and accessories. (a) Identification. A gastrointestinal tube and accessories is a device that..., gastrointestinal string and tubes to locate internal bleeding, double lumen tube for intestinal decompression...

  1. 21 CFR 872.6300 - Rubber dam and accessories.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 21 Food and Drugs 8 2013-04-01 2013-04-01 false Rubber dam and accessories. 872.6300 Section 872...) MEDICAL DEVICES DENTAL DEVICES Miscellaneous Devices 872.6300 Rubber dam and accessories. (a) Identification. A rubber dam and accessories is a device composed of a thin sheet of latex with a hole in...

  2. 21 CFR 872.6300 - Rubber dam and accessories.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 21 Food and Drugs 8 2012-04-01 2012-04-01 false Rubber dam and accessories. 872.6300 Section 872...) MEDICAL DEVICES DENTAL DEVICES Miscellaneous Devices 872.6300 Rubber dam and accessories. (a) Identification. A rubber dam and accessories is a device composed of a thin sheet of latex with a hole in...

  3. 21 CFR 872.6010 - Abrasive device and accessories.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 21 Food and Drugs 8 2010-04-01 2010-04-01 false Abrasive device and accessories. 872.6010 Section... (CONTINUED) MEDICAL DEVICES DENTAL DEVICES Miscellaneous Devices 872.6010 Abrasive device and accessories. (a) Identification. An abrasive device and accessories is a device constructed of various...

  4. 21 CFR 872.4920 - Dental electrosurgical unit and accessories.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 21 Food and Drugs 8 2013-04-01 2013-04-01 false Dental electrosurgical unit and accessories. 872... SERVICES (CONTINUED) MEDICAL DEVICES DENTAL DEVICES Surgical Devices 872.4920 Dental electrosurgical unit and accessories. (a) Identification. A dental electrosurgical unit and accessories is an...

  5. 21 CFR 872.4200 - Dental handpiece and accessories.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 21 Food and Drugs 8 2012-04-01 2012-04-01 false Dental handpiece and accessories. 872.4200 Section... (CONTINUED) MEDICAL DEVICES DENTAL DEVICES Surgical Devices 872.4200 Dental handpiece and accessories. (a) Identification. A dental handpiece and accessories is an AC-powered, water-powered, air-powered, or...

  6. 21 CFR 872.4920 - Dental electrosurgical unit and accessories.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 21 Food and Drugs 8 2014-04-01 2014-04-01 false Dental electrosurgical unit and accessories. 872... SERVICES (CONTINUED) MEDICAL DEVICES DENTAL DEVICES Surgical Devices 872.4920 Dental electrosurgical unit and accessories. (a) Identification. A dental electrosurgical unit and accessories is an...

  7. 21 CFR 872.6250 - Dental chair and accessories.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 21 Food and Drugs 8 2010-04-01 2010-04-01 false Dental chair and accessories. 872.6250 Section 872...) MEDICAL DEVICES DENTAL DEVICES Miscellaneous Devices 872.6250 Dental chair and accessories. (a) Identification. A dental chair and accessories is a device, usually AC-powered, in which a patient sits....

  8. 21 CFR 872.6640 - Dental operative unit and accessories.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 21 Food and Drugs 8 2012-04-01 2012-04-01 false Dental operative unit and accessories. 872.6640... (CONTINUED) MEDICAL DEVICES DENTAL DEVICES Miscellaneous Devices 872.6640 Dental operative unit and accessories. (a) Identification. A dental operative unit and accessories is an AC-powered device that...

  9. 21 CFR 872.4920 - Dental electrosurgical unit and accessories.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 21 Food and Drugs 8 2012-04-01 2012-04-01 false Dental electrosurgical unit and accessories. 872... SERVICES (CONTINUED) MEDICAL DEVICES DENTAL DEVICES Surgical Devices 872.4920 Dental electrosurgical unit and accessories. (a) Identification. A dental electrosurgical unit and accessories is an...

  10. 21 CFR 872.6640 - Dental operative unit and accessories.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 21 Food and Drugs 8 2013-04-01 2013-04-01 false Dental operative unit and accessories. 872.6640... (CONTINUED) MEDICAL DEVICES DENTAL DEVICES Miscellaneous Devices 872.6640 Dental operative unit and accessories. (a) Identification. A dental operative unit and accessories is an AC-powered device that...

  11. 21 CFR 872.4920 - Dental electrosurgical unit and accessories.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 21 Food and Drugs 8 2010-04-01 2010-04-01 false Dental electrosurgical unit and accessories. 872... SERVICES (CONTINUED) MEDICAL DEVICES DENTAL DEVICES Surgical Devices 872.4920 Dental electrosurgical unit and accessories. (a) Identification. A dental electrosurgical unit and accessories is an...

  12. 21 CFR 872.6640 - Dental operative unit and accessories.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 21 Food and Drugs 8 2014-04-01 2014-04-01 false Dental operative unit and accessories. 872.6640... (CONTINUED) MEDICAL DEVICES DENTAL DEVICES Miscellaneous Devices 872.6640 Dental operative unit and accessories. (a) Identification. A dental operative unit and accessories is an AC-powered device that...

  13. 21 CFR 872.6250 - Dental chair and accessories.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 21 Food and Drugs 8 2012-04-01 2012-04-01 false Dental chair and accessories. 872.6250 Section 872...) MEDICAL DEVICES DENTAL DEVICES Miscellaneous Devices 872.6250 Dental chair and accessories. (a) Identification. A dental chair and accessories is a device, usually AC-powered, in which a patient sits....

  14. 21 CFR 872.6250 - Dental chair and accessories.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 21 Food and Drugs 8 2014-04-01 2014-04-01 false Dental chair and accessories. 872.6250 Section 872...) MEDICAL DEVICES DENTAL DEVICES Miscellaneous Devices 872.6250 Dental chair and accessories. (a) Identification. A dental chair and accessories is a device, usually AC-powered, in which a patient sits....

  15. 21 CFR 872.6250 - Dental chair and accessories.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 21 Food and Drugs 8 2011-04-01 2011-04-01 false Dental chair and accessories. 872.6250 Section 872...) MEDICAL DEVICES DENTAL DEVICES Miscellaneous Devices 872.6250 Dental chair and accessories. (a) Identification. A dental chair and accessories is a device, usually AC-powered, in which a patient sits....

  16. 21 CFR 872.4920 - Dental electrosurgical unit and accessories.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 21 Food and Drugs 8 2011-04-01 2011-04-01 false Dental electrosurgical unit and accessories. 872... SERVICES (CONTINUED) MEDICAL DEVICES DENTAL DEVICES Surgical Devices 872.4920 Dental electrosurgical unit and accessories. (a) Identification. A dental electrosurgical unit and accessories is an...

  17. 21 CFR 872.6640 - Dental operative unit and accessories.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 21 Food and Drugs 8 2011-04-01 2011-04-01 false Dental operative unit and accessories. 872.6640... (CONTINUED) MEDICAL DEVICES DENTAL DEVICES Miscellaneous Devices 872.6640 Dental operative unit and accessories. (a) Identification. A dental operative unit and accessories is an AC-powered device that...

  18. 21 CFR 872.6250 - Dental chair and accessories.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 21 Food and Drugs 8 2013-04-01 2013-04-01 false Dental chair and accessories. 872.6250 Section 872...) MEDICAL DEVICES DENTAL DEVICES Miscellaneous Devices 872.6250 Dental chair and accessories. (a) Identification. A dental chair and accessories is a device, usually AC-powered, in which a patient sits....

  19. 21 CFR 872.4200 - Dental handpiece and accessories.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 21 Food and Drugs 8 2013-04-01 2013-04-01 false Dental handpiece and accessories. 872.4200 Section... (CONTINUED) MEDICAL DEVICES DENTAL DEVICES Surgical Devices 872.4200 Dental handpiece and accessories. (a) Identification. A dental handpiece and accessories is an AC-powered, water-powered, air-powered, or...

  20. 21 CFR 872.6640 - Dental operative unit and accessories.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 21 Food and Drugs 8 2010-04-01 2010-04-01 false Dental operative unit and accessories. 872.6640... (CONTINUED) MEDICAL DEVICES DENTAL DEVICES Miscellaneous Devices 872.6640 Dental operative unit and accessories. (a) Identification. A dental operative unit and accessories is an AC-powered device that...

  1. 21 CFR 872.4200 - Dental handpiece and accessories.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 21 Food and Drugs 8 2011-04-01 2011-04-01 false Dental handpiece and accessories. 872.4200 Section... (CONTINUED) MEDICAL DEVICES DENTAL DEVICES Surgical Devices 872.4200 Dental handpiece and accessories. (a) Identification. A dental handpiece and accessories is an AC-powered, water-powered, air-powered, or...

  2. 21 CFR 872.4200 - Dental handpiece and accessories.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 21 Food and Drugs 8 2014-04-01 2014-04-01 false Dental handpiece and accessories. 872.4200 Section... (CONTINUED) MEDICAL DEVICES DENTAL DEVICES Surgical Devices 872.4200 Dental handpiece and accessories. (a) Identification. A dental handpiece and accessories is an AC-powered, water-powered, air-powered, or...

  3. 21 CFR 876.5250 - Urine collector and accessories.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 21 Food and Drugs 8 2010-04-01 2010-04-01 false Urine collector and accessories. 876.5250 Section... (CONTINUED) MEDICAL DEVICES GASTROENTEROLOGY-UROLOGY DEVICES Therapeutic Devices 876.5250 Urine collector and accessories. (a) Identification. A urine collector and accessories is a device intended to...

  4. 21 CFR 876.5250 - Urine collector and accessories.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 21 Food and Drugs 8 2013-04-01 2013-04-01 false Urine collector and accessories. 876.5250 Section... (CONTINUED) MEDICAL DEVICES GASTROENTEROLOGY-UROLOGY DEVICES Therapeutic Devices 876.5250 Urine collector and accessories. (a) Identification. A urine collector and accessories is a device intended to...

  5. 21 CFR 876.5250 - Urine collector and accessories.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 21 Food and Drugs 8 2014-04-01 2014-04-01 false Urine collector and accessories. 876.5250 Section... (CONTINUED) MEDICAL DEVICES GASTROENTEROLOGY-UROLOGY DEVICES Therapeutic Devices 876.5250 Urine collector and accessories. (a) Identification. A urine collector and accessories is a device intended to...

  6. 21 CFR 876.5250 - Urine collector and accessories.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 21 Food and Drugs 8 2011-04-01 2011-04-01 false Urine collector and accessories. 876.5250 Section... (CONTINUED) MEDICAL DEVICES GASTROENTEROLOGY-UROLOGY DEVICES Therapeutic Devices 876.5250 Urine collector and accessories. (a) Identification. A urine collector and accessories is a device intended to...

  7. 21 CFR 876.5250 - Urine collector and accessories.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 21 Food and Drugs 8 2012-04-01 2012-04-01 false Urine collector and accessories. 876.5250 Section... (CONTINUED) MEDICAL DEVICES GASTROENTEROLOGY-UROLOGY DEVICES Therapeutic Devices 876.5250 Urine collector and accessories. (a) Identification. A urine collector and accessories is a device intended to...

  8. 21 CFR 876.5130 - Urological catheter and accessories.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 21 Food and Drugs 8 2011-04-01 2011-04-01 false Urological catheter and accessories. 876.5130... catheter and accessories. (a) Identification. A urological catheter and accessories is a flexible tubular device that is inserted through the urethra and used to pass fluids to or from the urinary tract....

  9. 21 CFR 876.5090 - Suprapubic urological catheter and accessories.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 21 Food and Drugs 8 2014-04-01 2014-04-01 false Suprapubic urological catheter and accessories... Suprapubic urological catheter and accessories. (a) Identification. A suprapubic urological catheter and accessories is a flexible tubular device that is inserted through the abdominal wall into the urinary...

  10. 21 CFR 876.5130 - Urological catheter and accessories.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 21 Food and Drugs 8 2013-04-01 2013-04-01 false Urological catheter and accessories. 876.5130... catheter and accessories. (a) Identification. A urological catheter and accessories is a flexible tubular device that is inserted through the urethra and used to pass fluids to or from the urinary tract....

  11. 21 CFR 876.5090 - Suprapubic urological catheter and accessories.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 21 Food and Drugs 8 2013-04-01 2013-04-01 false Suprapubic urological catheter and accessories... Suprapubic urological catheter and accessories. (a) Identification. A suprapubic urological catheter and accessories is a flexible tubular device that is inserted through the abdominal wall into the urinary...

  12. 21 CFR 876.5130 - Urological catheter and accessories.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 21 Food and Drugs 8 2014-04-01 2014-04-01 false Urological catheter and accessories. 876.5130... catheter and accessories. (a) Identification. A urological catheter and accessories is a flexible tubular device that is inserted through the urethra and used to pass fluids to or from the urinary tract....

  13. 21 CFR 876.5090 - Suprapubic urological catheter and accessories.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 21 Food and Drugs 8 2012-04-01 2012-04-01 false Suprapubic urological catheter and accessories... Suprapubic urological catheter and accessories. (a) Identification. A suprapubic urological catheter and accessories is a flexible tubular device that is inserted through the abdominal wall into the urinary...

  14. 21 CFR 876.5130 - Urological catheter and accessories.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 21 Food and Drugs 8 2012-04-01 2012-04-01 false Urological catheter and accessories. 876.5130... catheter and accessories. (a) Identification. A urological catheter and accessories is a flexible tubular device that is inserted through the urethra and used to pass fluids to or from the urinary tract....

  15. 21 CFR 876.5090 - Suprapubic urological catheter and accessories.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 21 Food and Drugs 8 2011-04-01 2011-04-01 false Suprapubic urological catheter and accessories... Suprapubic urological catheter and accessories. (a) Identification. A suprapubic urological catheter and accessories is a flexible tubular device that is inserted through the abdominal wall into the urinary...

  16. 21 CFR 872.4120 - Bone cutting instrument and accessories.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 21 Food and Drugs 8 2010-04-01 2010-04-01 false Bone cutting instrument and accessories. 872.4120... (CONTINUED) MEDICAL DEVICES DENTAL DEVICES Surgical Devices § 872.4120 Bone cutting instrument and accessories. (a) Identification. A bone cutting instrument and accessories is a metal device intended for...

  17. 21 CFR 872.4120 - Bone cutting instrument and accessories.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 21 Food and Drugs 8 2012-04-01 2012-04-01 false Bone cutting instrument and accessories. 872.4120... (CONTINUED) MEDICAL DEVICES DENTAL DEVICES Surgical Devices § 872.4120 Bone cutting instrument and accessories. (a) Identification. A bone cutting instrument and accessories is a metal device intended for...

  18. 21 CFR 872.4120 - Bone cutting instrument and accessories.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 21 Food and Drugs 8 2014-04-01 2014-04-01 false Bone cutting instrument and accessories. 872.4120... (CONTINUED) MEDICAL DEVICES DENTAL DEVICES Surgical Devices § 872.4120 Bone cutting instrument and accessories. (a) Identification. A bone cutting instrument and accessories is a metal device intended for...

  19. 21 CFR 872.4120 - Bone cutting instrument and accessories.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 21 Food and Drugs 8 2011-04-01 2011-04-01 false Bone cutting instrument and accessories. 872.4120... (CONTINUED) MEDICAL DEVICES DENTAL DEVICES Surgical Devices § 872.4120 Bone cutting instrument and accessories. (a) Identification. A bone cutting instrument and accessories is a metal device intended for...

  20. 21 CFR 872.4120 - Bone cutting instrument and accessories.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 21 Food and Drugs 8 2013-04-01 2013-04-01 false Bone cutting instrument and accessories. 872.4120... (CONTINUED) MEDICAL DEVICES DENTAL DEVICES Surgical Devices § 872.4120 Bone cutting instrument and accessories. (a) Identification. A bone cutting instrument and accessories is a metal device intended for...

  1. 21 CFR 878.4700 - Surgical microscope and accessories.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 21 Food and Drugs 8 2012-04-01 2012-04-01 false Surgical microscope and accessories. 878.4700 Section 878.4700 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES... microscope and accessories. (a) Identification. A surgical microscope and accessories is an AC-powered...

  2. 21 CFR 878.4700 - Surgical microscope and accessories.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 21 Food and Drugs 8 2014-04-01 2014-04-01 false Surgical microscope and accessories. 878.4700 Section 878.4700 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES... microscope and accessories. (a) Identification. A surgical microscope and accessories is an AC-powered...

  3. 21 CFR 878.4700 - Surgical microscope and accessories.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 21 Food and Drugs 8 2010-04-01 2010-04-01 false Surgical microscope and accessories. 878.4700 Section 878.4700 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES... microscope and accessories. (a) Identification. A surgical microscope and accessories is an AC-powered...

  4. 21 CFR 878.4700 - Surgical microscope and accessories.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 21 Food and Drugs 8 2011-04-01 2011-04-01 false Surgical microscope and accessories. 878.4700 Section 878.4700 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES... microscope and accessories. (a) Identification. A surgical microscope and accessories is an AC-powered...

  5. 21 CFR 878.4700 - Surgical microscope and accessories.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 21 Food and Drugs 8 2013-04-01 2013-04-01 false Surgical microscope and accessories. 878.4700 Section 878.4700 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES... microscope and accessories. (a) Identification. A surgical microscope and accessories is an AC-powered...

  6. 21 CFR 872.5410 - Orthodontic appliance and accessories.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... (CONTINUED) MEDICAL DEVICES DENTAL DEVICES Therapeutic Devices § 872.5410 Orthodontic appliance and accessories. (a) Identification. An orthodontic appliance and accessories is a device intended for use in... 21 Food and Drugs 8 2011-04-01 2011-04-01 false Orthodontic appliance and accessories....

  7. 21 CFR 872.5410 - Orthodontic appliance and accessories.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... (CONTINUED) MEDICAL DEVICES DENTAL DEVICES Therapeutic Devices § 872.5410 Orthodontic appliance and accessories. (a) Identification. An orthodontic appliance and accessories is a device intended for use in... 21 Food and Drugs 8 2013-04-01 2013-04-01 false Orthodontic appliance and accessories....

  8. 21 CFR 872.5410 - Orthodontic appliance and accessories.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... (CONTINUED) MEDICAL DEVICES DENTAL DEVICES Therapeutic Devices § 872.5410 Orthodontic appliance and accessories. (a) Identification. An orthodontic appliance and accessories is a device intended for use in... 21 Food and Drugs 8 2012-04-01 2012-04-01 false Orthodontic appliance and accessories....

  9. 21 CFR 872.5410 - Orthodontic appliance and accessories.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... (CONTINUED) MEDICAL DEVICES DENTAL DEVICES Therapeutic Devices § 872.5410 Orthodontic appliance and accessories. (a) Identification. An orthodontic appliance and accessories is a device intended for use in... 21 Food and Drugs 8 2010-04-01 2010-04-01 false Orthodontic appliance and accessories....

  10. 21 CFR 872.5410 - Orthodontic appliance and accessories.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... (CONTINUED) MEDICAL DEVICES DENTAL DEVICES Therapeutic Devices § 872.5410 Orthodontic appliance and accessories. (a) Identification. An orthodontic appliance and accessories is a device intended for use in... 21 Food and Drugs 8 2014-04-01 2014-04-01 false Orthodontic appliance and accessories....

  11. Multicopper manganese oxidase accessory proteins bind Cu and heme.

    PubMed

    Butterfield, Cristina N; Tao, Lizhi; Chacón, Kelly N; Spiro, Thomas G; Blackburn, Ninian J; Casey, William H; Britt, R David; Tebo, Bradley M

    2015-12-01

    Multicopper oxidases (MCOs) catalyze the oxidation of a diverse group of metal ions and organic substrates by successive single-electron transfers to O2 via four bound Cu ions. MnxG, which catalyzes MnO2 mineralization by oxidizing both Mn(II) and Mn(III), is unique among multicopper oxidases in that it carries out two energetically distinct electron transfers and is tightly bound to accessory proteins. There are two of these, MnxE and MnxF, both approximately 12kDa. Although their sequences are similar to those found in the genomes of several Mn-oxidizing Bacillus species, they are dissimilar to those of proteins with known function. Here, MnxE and MnxF are co-expressed independent of MnxG and are found to oligomerize into a higher order stoichiometry, likely a hexamer. They bind copper and heme, which have been characterized by electron paramagnetic resonance (EPR), X-ray absorption spectroscopy (XAS), and UV-visible (UV-vis) spectrophotometry. Cu is found in two distinct type 2 (T2) copper centers, one of which appears to be novel; heme is bound as a low-spin species, implying coordination by two axial ligands. MnxE and MnxF do not oxidize Mn in the absence of MnxG and are the first accessory proteins to be required by an MCO. This may indicate that Cu and heme play roles in electron transfer and/or Cu trafficking. PMID:26327317

  12. Algal Accessory Pigment Detection Using AVIRIS Image-Derived Spectral Radiance Data

    NASA Technical Reports Server (NTRS)

    Richardson, Laurie L.; Ambrosia, Vincent G.

    1996-01-01

    Visual and derivative analyses of AVIRIS spectral data can be used to detect algal accessory pigments in aquatic communities. This capability extends the use of remote sensing for the study of aquatic ecosystems by allowing detection of taxonomically significant pigment signatures which yield information about the type of algae present. Such information allows remote sensing-based assessment of aquatic ecosystem health, as in the detection of nuisance blooms of cyanobacteria or toxic blooms of dinoflagellates. Remote sensing of aquatic systems has traditionally focused on quantification of chlorophyll a, a photoreactive (and light-harvesting) pigment which is common to all algae as well as cyanobacteria (bluegreen algae). Due to the ubiquitousness of this pigment within algae, chl a is routinely measured to estimate algal biomass both during ground-truthing and using various airborne or satellite based sensors, including AVIRIS. Within the remote sensing and aquatic sciences communities, ongoing research has been performed to detect algal accessory pigments for assessment of algal population composition. This research is based on the fact that many algal accessory pigments are taxonomically significant, and all are spectrally unique. Aquatic scientists have been refining pigment analysis techniques, primarily high performance liquid chromatography, or HPLC, to detect specific pigments as a time-saving alternative to individual algal cell identifications and counts. Remote sensing scientists are investigating the use of pigment signatures to construct pigment libraries analogous to mineral spectral libraries used in geological remote sensing applications. The accessory pigment approach has been used successfully in remote sensing using data from the Thematic Mapper, low-altitude, multiple channel scanners, field spectroradiometers and the AVIRIS hyperspectral scanner. Due to spectral and spatial resolution capabilities, AVIRIS is the sensor of choice for such studies. We present here our results on detection of algal accessory pigments using AVIRIS data.

  13. Evidence for distinct stages of magma history recorded by the compositions of accessory apatite and zircon

    NASA Astrophysics Data System (ADS)

    Miles, A. J.; Graham, C. M.; Hawkesworth, C. J.; Gillespie, M. R.; Hinton, R. W.

    2013-07-01

    Accessory minerals contain a robust and accessible record of magma evolution. However, they may reflect relatively late-stage conditions in the history of the host magmas. In the normally zoned Criffell granitic pluton (Scotland), whole-rock (WR) compositions reflect open system assimilation and fractional crystallisation at depths of >11 km, whereas amphibole barometry and the absence of inherited zircon suggest that the observed mineral assemblages crystallised following emplacement of magmas with little or no crystal cargo at depths of 4-6 km. The crystallisation history is documented by large trace-element variations amongst apatite crystals from within individual samples: decreasing LREE and Th concentrations in apatite crystals from metaluminous samples reflect broadly synchronous crystallisation of allanite, whereas lower LREE and Th, and more negative Nd anomalies in apatites from peraluminous samples reflect the effects of monazite crystallisation. WR evolution is likely to have occurred within a deep crustal hot zone where H2O-rich (~6 wt%), low-viscosity magmas segregated and ascended adiabatically in a super-liquidus state, leading to resorption of most entrained crystals. Stalling, emplacement and crystallisation resulted from intersection with the H2O-saturated liquidus at ~4 km. H2O contents are as important as temperature in the development of super-liquidus magmas during ascent, blurring distinctions between apparently `hot' and `cold' granites. The trace-element contents of most accessory minerals are controlled by competitive crystallisation of other accessory minerals in small melt batches, consistent with the incremental assembly of large granitic plutons.

  14. Flow Chart for Mineral Separation from Granitic Rocks.

    ERIC Educational Resources Information Center

    Mursky, Gregory

    1987-01-01

    Provided is a flow chart for the separation and purification of major, minor, and accessory minerals from granitic rocks. With careful use of heavy liquids, and a Franz Isodynamic Magnetic Separator, it is possible to obtain mineral concentrates with a purity of 95 percent or better. (Author/RH)

  15. 21 CFR 884.1690 - Hysteroscope and accessories.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ...) MEDICAL DEVICES OBSTETRICAL AND GYNECOLOGICAL DEVICES Obstetrical and Gynecological Diagnostic Devices... portals for electrosurgical, laser, or other power sources. Such hysteroscope accessory...

  16. 21 CFR 884.1690 - Hysteroscope and accessories.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ...) MEDICAL DEVICES OBSTETRICAL AND GYNECOLOGICAL DEVICES Obstetrical and Gynecological Diagnostic Devices... portals for electrosurgical, laser, or other power sources. Such hysteroscope accessory...

  17. 21 CFR 884.1690 - Hysteroscope and accessories.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ...) MEDICAL DEVICES OBSTETRICAL AND GYNECOLOGICAL DEVICES Obstetrical and Gynecological Diagnostic Devices... portals for electrosurgical, laser, or other power sources. Such hysteroscope accessory...

  18. 21 CFR 884.1690 - Hysteroscope and accessories.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ...) MEDICAL DEVICES OBSTETRICAL AND GYNECOLOGICAL DEVICES Obstetrical and Gynecological Diagnostic Devices... portals for electrosurgical, laser, or other power sources. Such hysteroscope accessory...

  19. Reviewing prescription spending and accessory usage.

    PubMed

    Oxenham, Julie

    This article aims to explore the role of the stoma nurse specialist in the community and how recent initiatives within the NHS have impacted on the roles in stoma care to react to the rising prescription costs in the specialty. The article will explore how the stoma care nurse conducted her prescription reviews within her own clinical commissioning group (CCG). The findings of the reviews will be highlighted by a small case history and a mini audit that reveals that some stoma patients may be using their stoma care accessories inappropriately, which may contribute to the rise in stoma prescription spending. To prevent the incorrect use of stoma appliances it may necessitate an annual review of ostomates (individuals who have a stoma), as the author's reviews revealed that inappropriate usage was particularly commonplace when a patient may have not been reviewed by a stoma care specialist for some considerable amount of time. Initial education of the ostomate and ongoing education of how stoma products work is essential to prevent the misuse of stoma appliances, particularly accessories, as the reviews revealed that often patients were not always aware of how their products worked in practice. PMID:24642774

  20. 21 CFR 872.6010 - Abrasive device and accessories.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 21 Food and Drugs 8 2011-04-01 2011-04-01 false Abrasive device and accessories. 872.6010 Section 872.6010 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES DENTAL DEVICES Miscellaneous Devices 872.6010 Abrasive device and accessories. (a) Identification. An abrasive device...

  1. 21 CFR 884.2700 - Intrauterine pressure monitor and accessories.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 21 Food and Drugs 8 2014-04-01 2014-04-01 false Intrauterine pressure monitor and accessories. 884... Monitoring Devices 884.2700 Intrauterine pressure monitor and accessories. (a) Identification. An intrauterine pressure monitor is a device designed to detect and measure intrauterine and amniotic...

  2. 14 CFR 125.149 - Engine accessory section diaphragm.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 14 Aeronautics and Space 3 2012-01-01 2012-01-01 false Engine accessory section diaphragm. 125.149... Requirements § 125.149 Engine accessory section diaphragm. Unless equivalent protection can be shown by other means, a diaphragm that complies with § 125.145 must be provided on air-cooled engines to isolate...

  3. 14 CFR 125.149 - Engine accessory section diaphragm.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 14 Aeronautics and Space 3 2013-01-01 2013-01-01 false Engine accessory section diaphragm. 125.149... Requirements § 125.149 Engine accessory section diaphragm. Unless equivalent protection can be shown by other means, a diaphragm that complies with § 125.145 must be provided on air-cooled engines to isolate...

  4. 14 CFR 125.149 - Engine accessory section diaphragm.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Engine accessory section diaphragm. 125.149... Requirements § 125.149 Engine accessory section diaphragm. Unless equivalent protection can be shown by other means, a diaphragm that complies with § 125.145 must be provided on air-cooled engines to isolate...

  5. 14 CFR 125.149 - Engine accessory section diaphragm.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 14 Aeronautics and Space 3 2011-01-01 2011-01-01 false Engine accessory section diaphragm. 125.149... Requirements § 125.149 Engine accessory section diaphragm. Unless equivalent protection can be shown by other means, a diaphragm that complies with § 125.145 must be provided on air-cooled engines to isolate...

  6. 14 CFR 23.1192 - Engine accessory compartment diaphragm.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 14 Aeronautics and Space 1 2011-01-01 2011-01-01 false Engine accessory compartment diaphragm. 23... Powerplant Powerplant Fire Protection § 23.1192 Engine accessory compartment diaphragm. For aircooled radial engines, the engine power section and all portions of the exhaust sytem must be isolated from the...

  7. 14 CFR 23.1192 - Engine accessory compartment diaphragm.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 14 Aeronautics and Space 1 2010-01-01 2010-01-01 false Engine accessory compartment diaphragm. 23... Powerplant Powerplant Fire Protection § 23.1192 Engine accessory compartment diaphragm. For aircooled radial engines, the engine power section and all portions of the exhaust sytem must be isolated from the...

  8. 14 CFR 23.1192 - Engine accessory compartment diaphragm.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 14 Aeronautics and Space 1 2014-01-01 2014-01-01 false Engine accessory compartment diaphragm. 23... Powerplant Powerplant Fire Protection § 23.1192 Engine accessory compartment diaphragm. For aircooled radial engines, the engine power section and all portions of the exhaust sytem must be isolated from the...

  9. Unusual drainage of the main kidney on accessory kidney

    PubMed Central

    Erdem, Glnur; U?ra?, Murat; Demirz, Sevgi

    2014-01-01

    Patients with an accessory kidney are characterized by an excessive number of kidneys. The ureter of the accessory kidney either drains separately into the bladder or merges with the ureter of the main kidney. In our case, interestingly, the ureter of the left main kidney drained directly into the accessory kidney and the ureter of the latter was the common drainage route for both. The drainage of a normal kidney via the ureter of an accessory kidney has not been reported in the literature, so far. The aim of this report is to present the case with radiological findings and to emphasize the effects of this situation on planned surgical procedures. A 62-year-old female patient had an interesting abnormality on the left collecting system, which was revealed on excretory urography (EU), retrograde urography (RU) and multidetector computed tomography (MDCT). A kinky left ureter, which formed a U shape, was revealed on EU. On MDCT, an accessory kidney was revealed at the anterior aspect of the middle zone of left main kidney. The ureter of the main left kidney drained directly into the accessory kidney. The course of this drainage was confirmed by retrograde urography. An accessory kidney is a rare entity associated with horseshoe kidney, ectopic ureter draining into the vagina, bifid collecting system and coarctation of the aorta. In our case, an unusual association between the ureters of the main and accessory kidneys was revealed, which may have an impact on planned surgery in the groin and retroperitoneal areas. PMID:26328163

  10. 46 CFR 98.25-40 - Valves, fittings, and accessories.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... Anhydrous Ammonia in Bulk § 98.25-40 Valves, fittings, and accessories. (a) All valves, flanges, fittings and accessory equipment shall be of a type suitable for use with anhydrous ammonia and shall be made... Engineering) of this chapter. Valves shall be fitted with noncorrosive material suitable for ammonia...

  11. 21 CFR 872.4200 - Dental handpiece and accessories.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 21 Food and Drugs 8 2010-04-01 2010-04-01 false Dental handpiece and accessories. 872.4200 Section 872.4200 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES DENTAL DEVICES Surgical Devices 872.4200 Dental handpiece and accessories....

  12. 46 CFR 98.25-40 - Valves, fittings, and accessories.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... Anhydrous Ammonia in Bulk 98.25-40 Valves, fittings, and accessories. (a) All valves, flanges, fittings and accessory equipment shall be of a type suitable for use with anhydrous ammonia and shall be made... Engineering) of this chapter. Valves shall be fitted with noncorrosive material suitable for ammonia...

  13. 46 CFR 98.25-40 - Valves, fittings, and accessories.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... Anhydrous Ammonia in Bulk 98.25-40 Valves, fittings, and accessories. (a) All valves, flanges, fittings and accessory equipment shall be of a type suitable for use with anhydrous ammonia and shall be made... Engineering) of this chapter. Valves shall be fitted with noncorrosive material suitable for ammonia...

  14. 46 CFR 98.25-40 - Valves, fittings, and accessories.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... Anhydrous Ammonia in Bulk 98.25-40 Valves, fittings, and accessories. (a) All valves, flanges, fittings and accessory equipment shall be of a type suitable for use with anhydrous ammonia and shall be made... Engineering) of this chapter. Valves shall be fitted with noncorrosive material suitable for ammonia...

  15. 46 CFR 98.25-40 - Valves, fittings, and accessories.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... Anhydrous Ammonia in Bulk 98.25-40 Valves, fittings, and accessories. (a) All valves, flanges, fittings and accessory equipment shall be of a type suitable for use with anhydrous ammonia and shall be made... Engineering) of this chapter. Valves shall be fitted with noncorrosive material suitable for ammonia...

  16. 14 CFR 23.1437 - Accessories for multiengine airplanes.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 14 Aeronautics and Space 1 2014-01-01 2014-01-01 false Accessories for multiengine airplanes. 23... TRANSPORTATION AIRCRAFT AIRWORTHINESS STANDARDS: NORMAL, UTILITY, ACROBATIC, AND COMMUTER CATEGORY AIRPLANES Equipment Miscellaneous Equipment 23.1437 Accessories for multiengine airplanes. For multiengine...

  17. 14 CFR 23.1437 - Accessories for multiengine airplanes.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 14 Aeronautics and Space 1 2012-01-01 2012-01-01 false Accessories for multiengine airplanes. 23... TRANSPORTATION AIRCRAFT AIRWORTHINESS STANDARDS: NORMAL, UTILITY, ACROBATIC, AND COMMUTER CATEGORY AIRPLANES Equipment Miscellaneous Equipment 23.1437 Accessories for multiengine airplanes. For multiengine...

  18. 14 CFR 23.1437 - Accessories for multiengine airplanes.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 14 Aeronautics and Space 1 2011-01-01 2011-01-01 false Accessories for multiengine airplanes. 23... TRANSPORTATION AIRCRAFT AIRWORTHINESS STANDARDS: NORMAL, UTILITY, ACROBATIC, AND COMMUTER CATEGORY AIRPLANES Equipment Miscellaneous Equipment 23.1437 Accessories for multiengine airplanes. For multiengine...

  19. 14 CFR 23.1437 - Accessories for multiengine airplanes.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 14 Aeronautics and Space 1 2013-01-01 2013-01-01 false Accessories for multiengine airplanes. 23... TRANSPORTATION AIRCRAFT AIRWORTHINESS STANDARDS: NORMAL, UTILITY, ACROBATIC, AND COMMUTER CATEGORY AIRPLANES Equipment Miscellaneous Equipment 23.1437 Accessories for multiengine airplanes. For multiengine...

  20. Simon Effect with and without Awareness of the Accessory Stimulus

    ERIC Educational Resources Information Center

    Treccani, Barbara; Umilta, Carlo; Tagliabue, Mariaelena

    2006-01-01

    The authors investigated whether a Simon effect could be observed in an accessory-stimulus Simon task when participants were unaware of the task-irrelevant accessory cue. In Experiment 1A a central visual target was accompanied by a suprathreshold visual lateral cue. A regular Simon effect (i.e., faster cue-response corresponding reaction times

  1. 21 CFR 884.4900 - Obstetric table and accessories.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 21 Food and Drugs 8 2012-04-01 2012-04-01 false Obstetric table and accessories. 884.4900 Section... Devices 884.4900 Obstetric table and accessories. (a) Identification. An obstetric table is a device...) Classification. Class II (performance standards)....

  2. 21 CFR 884.4900 - Obstetric table and accessories.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 21 Food and Drugs 8 2011-04-01 2011-04-01 false Obstetric table and accessories. 884.4900 Section... Devices 884.4900 Obstetric table and accessories. (a) Identification. An obstetric table is a device...) Classification. Class II (performance standards)....

  3. 21 CFR 884.4900 - Obstetric table and accessories.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 21 Food and Drugs 8 2010-04-01 2010-04-01 false Obstetric table and accessories. 884.4900 Section... Devices 884.4900 Obstetric table and accessories. (a) Identification. An obstetric table is a device...) Classification. Class II (performance standards)....

  4. 21 CFR 884.4900 - Obstetric table and accessories.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 21 Food and Drugs 8 2013-04-01 2013-04-01 false Obstetric table and accessories. 884.4900 Section... Devices 884.4900 Obstetric table and accessories. (a) Identification. An obstetric table is a device...) Classification. Class II (performance standards)....

  5. 21 CFR 884.4900 - Obstetric table and accessories.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 21 Food and Drugs 8 2014-04-01 2014-04-01 false Obstetric table and accessories. 884.4900 Section... Devices 884.4900 Obstetric table and accessories. (a) Identification. An obstetric table is a device...) Classification. Class II (performance standards)....

  6. 21 CFR 870.4200 - Cardiopulmonary bypass accessory equipment.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 21 Food and Drugs 8 2013-04-01 2013-04-01 false Cardiopulmonary bypass accessory equipment. 870.4200 Section 870.4200 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES CARDIOVASCULAR DEVICES Cardiovascular Surgical Devices 870.4200 Cardiopulmonary bypass accessory equipment....

  7. 21 CFR 884.5350 - Contraceptive diaphragm and accessories.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 21 Food and Drugs 8 2011-04-01 2011-04-01 false Contraceptive diaphragm and accessories. 884.5350 Section 884.5350 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES... Devices § 884.5350 Contraceptive diaphragm and accessories. (a) Identification. A contraceptive...

  8. 21 CFR 884.5350 - Contraceptive diaphragm and accessories.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 21 Food and Drugs 8 2014-04-01 2014-04-01 false Contraceptive diaphragm and accessories. 884.5350 Section 884.5350 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES... Devices § 884.5350 Contraceptive diaphragm and accessories. (a) Identification. A contraceptive...

  9. 21 CFR 884.5350 - Contraceptive diaphragm and accessories.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 21 Food and Drugs 8 2013-04-01 2013-04-01 false Contraceptive diaphragm and accessories. 884.5350 Section 884.5350 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES... Devices § 884.5350 Contraceptive diaphragm and accessories. (a) Identification. A contraceptive...

  10. 21 CFR 884.5350 - Contraceptive diaphragm and accessories.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 21 Food and Drugs 8 2012-04-01 2012-04-01 false Contraceptive diaphragm and accessories. 884.5350 Section 884.5350 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES... Devices § 884.5350 Contraceptive diaphragm and accessories. (a) Identification. A contraceptive...

  11. 21 CFR 884.5350 - Contraceptive diaphragm and accessories.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 21 Food and Drugs 8 2010-04-01 2010-04-01 false Contraceptive diaphragm and accessories. 884.5350 Section 884.5350 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES... Devices § 884.5350 Contraceptive diaphragm and accessories. (a) Identification. A contraceptive...

  12. 21 CFR 876.1500 - Endoscope and accessories.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 21 Food and Drugs 8 2014-04-01 2014-04-01 false Endoscope and accessories. 876.1500 Section 876.1500 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES GASTROENTEROLOGY-UROLOGY DEVICES Diagnostic Devices 876.1500 Endoscope and accessories. (a) Identification. An endoscope...

  13. 14 CFR 23.1437 - Accessories for multiengine airplanes.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 14 Aeronautics and Space 1 2010-01-01 2010-01-01 false Accessories for multiengine airplanes. 23... TRANSPORTATION AIRCRAFT AIRWORTHINESS STANDARDS: NORMAL, UTILITY, ACROBATIC, AND COMMUTER CATEGORY AIRPLANES Equipment Miscellaneous Equipment 23.1437 Accessories for multiengine airplanes. For multiengine...

  14. 21 CFR 878.4350 - Cryosurgical unit and accessories.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... urological applications, by applying extreme cold. (3) Cryosurgical unit with a carbon dioxide cooled cryoprobe or a carbon dioxide dry ice applicator and accessories. A cryosurgical unit with a carbon dioxide cooled cryoprobe or a carbon dioxide dry ice applicator and accessories is a device intended to...

  15. 21 CFR 876.5820 - Hemodialysis system and accessories.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 21 Food and Drugs 8 2013-04-01 2013-04-01 false Hemodialysis system and accessories. 876.5820 Section 876.5820 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES GASTROENTEROLOGY-UROLOGY DEVICES Therapeutic Devices 876.5820 Hemodialysis system and accessories. (a) Identification....

  16. 21 CFR 876.5820 - Hemodialysis system and accessories.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 21 Food and Drugs 8 2014-04-01 2014-04-01 false Hemodialysis system and accessories. 876.5820 Section 876.5820 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES GASTROENTEROLOGY-UROLOGY DEVICES Therapeutic Devices § 876.5820 Hemodialysis system and accessories. (a) Identification....

  17. Morphology of the turtle accessory optic system.

    PubMed

    Martin, John; Kogo, Naoki; Fan, Tian Xing; Ariel, Michael

    2003-01-01

    Neural signals of the moving visual world are detected by a subclass of retinal ganglion cells that project to the accessory optic system in the vertebrate brainstem. We studied the dendritic morphologies and direction tuning of these brainstem neurons in turtle (Pseudemys scripta elegans) to understand their role in visual processing. Full-field checkerboard patterns were drifted on the contralateral retina while whole-cell recordings were made in the basal optic nucleus in an intact brainstem preparation in vitro. Neurobiotin diffused into the neurons during the recording and was subsequently localized in brain sections. Neuronal morphologies were traced using appropriate computer software to analyze their position in the brainstem. Most labeled neurons were fusiform in shape and had numerous varicosities along their processes. The majority of dendritic trees spread out in a transverse plane perpendicular to the rostrocaudal axis of the nucleus. Neurons near the brainstem surface were often oriented tangential to that surface, whereas more cells at the dorsal side of the nucleus were oriented radial to the brainstem surface. Further analysis of Nissl-stained neurons revealed the largest neurons are located in the rostral and medial portions of the nucleus although neurons are most densely packed in the middle of the nucleus. The preferred directions of the visual responses of the neurons in this sample did not correlate with their morphology and position in the nucleus. Therefore, the morphology of the cells in the turtle accessory optic system appears dependent on its position within the nucleus while its visual responses may depend on the synaptic inputs that contact each cell. PMID:15088717

  18. Accessory spleen compromising response to splenectomy for idiopathic thrombocytopenic purpura

    SciTech Connect

    Ambriz, P.; Munoz, R.; Quintanar, E.; Sigler, L.; Aviles, A.; Pizzuto, J.

    1985-06-01

    Accessory spleens were sought in 28 patients who had undergone splenectomy for chronic idiopathic thrombocytopenic purpura (ITP), using a variety of techniques. Abdominal scintigraphy with autologous erythrocytes labeled with Tc-99m and opsonized with anit-D IgG (radioimmune method) proved to be most useful, clearly demonstrating one or more accessory spleens in 12 cases (43%). Computed tomography (CT) was also helpful. Four out of five patients demonstrated an increased platelet count following surgery, the effectiveness of which was illustrated by the radioimmune scan. Patients who have had splenectomy for chronic ITP should be scanned using radioimmune techniques and CT to determine whether an accessory spleen is present.

  19. Accessory proteins for heterotrimeric G-proteins in the kidney

    PubMed Central

    Park, Frank

    2015-01-01

    Heterotrimeric G-proteins play a fundamentally important role in regulating signal transduction pathways in the kidney. Accessory proteins are being identified as direct binding partners for heterotrimeric G-protein α or βγ subunits to promote more diverse mechanisms by which G-protein signaling is controlled. In some instances, accessory proteins can modulate the signaling magnitude, localization, and duration following the activation of cell membrane-associated receptors. Alternatively, accessory proteins complexed with their G-protein α or βγ subunits can promote non-canonical models of signaling activity within the cell. In this review, we will highlight the expression profile, localization and functional importance of these newly identified accessory proteins to control the function of select G-protein subunits under normal and various disease conditions observed in the kidney. PMID:26300785

  20. 21 CFR 876.5540 - Blood access device and accessories.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... dilator, disconnect forceps, shunt guard, crimp plier, tube plier, crimp ring, joint ring, fistula adaptor... clamp, disconnect forceps, crimp plier, tube plier, crimp ring, and joint ring, accessories for both...

  1. 21 CFR 876.5540 - Blood access device and accessories.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... dilator, disconnect forceps, shunt guard, crimp plier, tube plier, crimp ring, joint ring, fistula adaptor... clamp, disconnect forceps, crimp plier, tube plier, crimp ring, and joint ring, accessories for both...

  2. 21 CFR 876.5540 - Blood access device and accessories.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... dilator, disconnect forceps, shunt guard, crimp plier, tube plier, crimp ring, joint ring, fistula adaptor... clamp, disconnect forceps, crimp plier, tube plier, crimp ring, and joint ring, accessories for both...

  3. Complete Spinal Accessory Nerve Palsy From Carrying Climbing Gear.

    PubMed

    Coulter, Jess M; Warme, Winston J

    2015-09-01

    We report an unusual case of spinal accessory nerve palsy sustained while transporting climbing gear. Spinal accessory nerve injury is commonly a result of iatrogenic surgical trauma during lymph node excision. This particular nerve is less frequently injured by blunt trauma. The case reported here results from compression of the spinal accessory nerve for a sustained period-that is, carrying a load over the shoulder using a single nylon rope for 2.5 hours. This highlights the importance of using proper load-carrying equipment to distribute weight over a greater surface area to avoid nerve compression in the posterior triangle of the neck. The signs and symptoms of spinal accessory nerve palsy and its etiology are discussed. This report is particularly relevant to individuals involved in mountaineering and rock climbing but can be extended to anyone carrying a load with a strap over one shoulder and across the body. PMID:25937552

  4. 21 CFR 876.5630 - Peritoneal dialysis system and accessories.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... accessories is a device that is used as an artificial kidney system for the treatment of patients with renal failure or toxemic conditions, and that consists of a peritoneal access device, an administration set...

  5. 21 CFR 876.5630 - Peritoneal dialysis system and accessories.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... accessories is a device that is used as an artificial kidney system for the treatment of patients with renal failure or toxemic conditions, and that consists of a peritoneal access device, an administration set...

  6. INTERIOR VIEW OF BATHROOM 2. SHOWING ORIGINAL TILE. CERAMIC ACCESSORIES, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    INTERIOR VIEW OF BATHROOM 2. SHOWING ORIGINAL TILE. CERAMIC ACCESSORIES, AND MARBLE THRESHOLD. VIEW FACING EAST. - Hickam Field, Officers' Housing Type G, 205 Seventh Street, Honolulu, Honolulu County, HI

  7. 21 CFR 876.5630 - Peritoneal dialysis system and accessories.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... accessories is a device that is used as an artificial kidney system for the treatment of patients with renal failure or toxemic conditions, and that consists of a peritoneal access device, an administration set...

  8. 21 CFR 876.5630 - Peritoneal dialysis system and accessories.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... accessories is a device that is used as an artificial kidney system for the treatment of patients with renal failure or toxemic conditions, and that consists of a peritoneal access device, an administration set...

  9. 21 CFR 876.5630 - Peritoneal dialysis system and accessories.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... accessories is a device that is used as an artificial kidney system for the treatment of patients with renal failure or toxemic conditions, and that consists of a peritoneal access device, an administration set...

  10. 21 CFR 872.6300 - Rubber dam and accessories.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ...) Identification. A rubber dam and accessories is a device composed of a thin sheet of latex with a hole in the... sexually transmitted diseases through oral sex; those devices are classified as condoms in § 884.5300...

  11. 21 CFR 872.6300 - Rubber dam and accessories.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ...) Identification. A rubber dam and accessories is a device composed of a thin sheet of latex with a hole in the... sexually transmitted diseases through oral sex; those devices are classified as condoms in § 884.5300...

  12. Alternative delivery of male accessory gland products

    PubMed Central

    2014-01-01

    To increase fertilization success, males transfer accessory gland products (Acps). Several species have evolved unconventional Acps transfer modes, meaning that Acps are transferred separately from the sperm. By surveying the sperm-free Acps transfer cases, we show that these animals have evolved a common strategy to deliver Acps: they all inject Acps directly through the partner’s body wall into the hemolymph. Our review of this mode of Acps transfer reveals another striking similarity: they all transfer sperm in packages or via the skin, which may leave little room for Acps transfer via the conventional route in seminal fluid. We synthesise the knowledge about the function, and the effects in the recipients, of the Acps found in the widely diverse taxa (including earthworms, sea slugs, terrestrial snails, scorpions and salamanders) that inject these substances. Despite the clearly independent evolution of the injection devices, these animals have evolved a common alternative strategy to get their partners to accept and/or use their sperm. Most importantly, the evolution of the injection devices for the delivery of Acps highlights how the latter are pivotal for male reproductive success and, hence, strongly influence sexual selection. PMID:24708537

  13. Accessory stimulus modulates executive function during stepping task.

    PubMed

    Watanabe, Tatsunori; Koyama, Soichiro; Tanabe, Shigeo; Nojima, Ippei

    2015-07-01

    When multiple sensory modalities are simultaneously presented, reaction time can be reduced while interference enlarges. The purpose of this research was to examine the effects of task-irrelevant acoustic accessory stimuli simultaneously presented with visual imperative stimuli on executive function during stepping. Executive functions were assessed by analyzing temporal events and errors in the initial weight transfer of the postural responses prior to a step (anticipatory postural adjustment errors). Eleven healthy young adults stepped forward in response to a visual stimulus. We applied a choice reaction time task and the Simon task, which consisted of congruent and incongruent conditions. Accessory stimuli were randomly presented with the visual stimuli. Compared with trials without accessory stimuli, the anticipatory postural adjustment error rates were higher in trials with accessory stimuli in the incongruent condition and the reaction times were shorter in trials with accessory stimuli in all the task conditions. Analyses after division of trials according to whether anticipatory postural adjustment error occurred or not revealed that the reaction times of trials with anticipatory postural adjustment errors were reduced more than those of trials without anticipatory postural adjustment errors in the incongruent condition. These results suggest that accessory stimuli modulate the initial motor programming of stepping by lowering decision threshold and exclusively under spatial incompatibility facilitate automatic response activation. The present findings advance the knowledge of intersensory judgment processes during stepping and may aid in the development of intervention and evaluation tools for individuals at risk of falls. PMID:25925321

  14. Rare accessory uraninite in a Sierran granite

    NASA Technical Reports Server (NTRS)

    Snetsinger, K. G.; Polkowski, G.

    1977-01-01

    One grain of uraninite was found in a single thin-section of Sierran granite. Electron and ion microprobe analysis were used to determine the composition. Since the U-Pb age calculated for the uraninite does not differ greatly from the K-Ar age of the unit in which it occurs, it is suggested that the mineral is primary and not reworked from a preexisting rock. No uraninite has been detected in heavy mineral concentrates from other rocks of the local area.

  15. The extensive set of accessory Pseudomonas aeruginosa genomic components.

    PubMed

    Pohl, Sarah; Klockgether, Jens; Eckweiler, Denitsa; Khaledi, Ariane; Schniederjans, Monika; Chouvarine, Philippe; Tmmler, Burkhard; Hussler, Susanne

    2014-07-01

    Up to 20% of the chromosomal Pseudomonas aeruginosa DNA belong to the so-called accessory genome. Its elements are specific for subgroups or even single strains and are likely acquired by horizontal gene transfer (HGT). Similarities of the accessory genomic elements to DNA from other bacterial species, mainly the DNA of ?- and ?-proteobacteria, indicate a role of interspecies HGT. In this study, we analysed the expression of the accessory genome in 150 clinical P.aeruginosa isolates as uncovered by transcriptome sequencing and the presence of accessory genes in eleven additional isolates. Remarkably, despite the large number of P.aeruginosa strains that have been sequenced to date, we found new strain-specific compositions of accessory genomic elements and a high portion (10-20%) of genes without P.aeruginosa homologues. Although some genes were detected to be expressed/present in several isolates, individual patterns regarding the genes, their functions and the possible origin of the DNA were widespread among the tested strains. Our results demonstrate the unaltered potential to discover new traits within the P.aeruginosa population and underline that the P.aeruginosa pangenome is likely to increase with increasing sequence information. PMID:24766399

  16. Characterization of the accessory Sec system of Staphylococcus aureus.

    PubMed

    Siboo, Ian R; Chaffin, Donald O; Rubens, Craig E; Sullam, Paul M

    2008-09-01

    The SraP adhesin of Staphylococcus aureus is a member of a highly conserved family of serine-rich surface glycoproteins of gram-positive bacteria. For streptococci, export of the SraP homologs requires a specialized transport pathway (the accessory Sec system). Compared to streptococci, however, SraP is predicted to differ in its signal peptide and glycosylation, which may affect its dependence on a specialized system for transport. In addition, two genes (asp4 and asp5) essential for export in Streptococcus gordonii are missing in S. aureus. Thus, the selectivity of the accessory Sec system in S. aureus may also differ compared to streptococci. To address these issues, the five genes encoding the putative accessory Sec system (secY2, secA2, and asp1-3) were disrupted individually in S. aureus ISP479C, and the resultant mutants were examined for SraP export. Disruption of secA2 resulted in the near complete loss of SraP surface expression. Similar results were seen with disruption of secY2 and asp1, asp2, or asp3. To assess whether the accessory Sec system transported other substrates, we compared secreted proteomes of ISP479C and a secA2 isogenic mutant, by two-dimensional fluorescence difference gel electrophoresis. Although two consistent differences in proteome content were noted between the strains, neither protein appeared to be a likely substrate for accessory Sec export. Thus, the accessory Sec system of S. aureus is required for the export of SraP, and it appears to be dedicated to the transport of this substrate exclusively. PMID:18621893

  17. An Accessory Peroneocalcaneus Internus Muscle with MRI and US Correlation

    PubMed Central

    Howe, Benjamin Matthew; Murthy, Naveen Srinivasa

    2012-01-01

    The peroneocalcaneus internus (PCI) is a rare accessory muscle of the medial ankle with typical MRI anatomic features allowing differentiation from the more common accessory flexor digitorum longus muscle. To our knowledge, there have been no previously published sonographic images of the peroneocalcaneus internus. A PCI is typically an incidental, asymptomatic finding, but knowledge of the entity may avoid confusion when initially encountered by diagnostic ultrasound. We review the anatomic imaging features which allow for a confident imaging diagnosis and the clinical relevance of this anomaly. PMID:23378873

  18. Oxide minerals in lithic fragments from Luna 20 fines.

    NASA Technical Reports Server (NTRS)

    Brett, R.; Gooley, R. C.; Dowty, E.; Prinz, M.; Keil, K.

    1973-01-01

    One hundred seventy-six oxide mineral grains in the Luna 20 samples were analyzed by electron microprobe. Spinel is the most abundant oxide, occurring in troctolite fragments. Next most abundant is ilmenite, which occurs in all rock types except those containing spinel. Chromite also occurs in all rock types except those containing spinel. Minor amounts of ulvospinel, armalcolite, zirkelite, baddeleyite and an unidentified TiO2-rich phase were also found. Spinel grains are predominantly spinel-hercynite solid solutions, commonly with very minor chromite. The Fe/(Fe + Mg) ratio is generally lower than in spinel from Apollo 14 rocks. Chromites in non-mare rocks are similar to those from mare rocks. Ilmenite of mare origin is Mg-poor and Zr-rich compared to non-mare ilmenite; these elements may therefore be useful in determining the origin of ilmenite grains. Phase equilibria considerations suggest that spinel troctolite crystallized from a melt high in alumina; a likely candidate is the high-alumina basalt of Prinz et al. (1973).

  19. Accessory lobes of the liver: A report of 3 cases and review of the literature

    PubMed Central

    Wang, Chenglin; Cheng, Lin; Zhang, Ziqin; Xie, Tingting; Ding, Heyu; Deng, Qianhua; Yuan, Zhidong

    2012-01-01

    Summary This article is about 3 cases of accessory lobes of the liver. Case One involved a pedunculated accessory lobe of the liver (ALL), Case Two involved a true ectopic liver, and Case Three involved a sessile accessory lobe of the liver. All 3 cases were diagnosed by computed tomography (CT) or magnetic resonance imaging (MRI) and confirmed by surgical and histological examination. The pertinent literature on accessory lobes of the liver is also reviewed. PMID:25343077

  20. Antidromic Atrioventricular Reciprocating Tachycardia Using a Concealed Retrograde Conducting Left Lateral Accessory Pathway.

    PubMed

    Gonzalez, Jaime E; Zipse, Matthew M; Nguyen, Duy T; Sauer, William H

    2016-03-01

    Atrioventricular reciprocating tachycardia is a common cause of undifferentiated supraventricular tachycardia. In patients with manifest or concealed accessory pathways, it is imperative to assess for the presence of other accessory pathways. Multiple accessory pathways are present in 4% to 10% of patients and are more common in patients with structural heart disease. In rare cases, multiple accessory pathways can act as the anterograde and retrograde limbs of the tachycardia. PMID:26920167

  1. Mineral Chart

    MedlinePLUS

    ... How Can I Help a Friend Who Cuts? Mineral Chart KidsHealth > For Teens > Mineral Chart Print A A A Text Size en ... sources of calcium. You'll also find this mineral in broccoli and dark green, leafy vegetables. Soy ...

  2. Minerals yearbook

    SciTech Connect

    Not Available

    1988-01-01

    This volume contains the latest available mineral data on more than 150 foreign countries and discusses the importance of minerals in the economies of these nations. A separate chapter reviews the international minerals industry in general and its relationship to the world economy.

  3. 21 CFR 884.2640 - Fetal phonocardiographic monitor and accessories.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... phonocardiographic monitor is a device designed to detect, measure, and record fetal heart sounds electronically, in graphic form, and noninvasively, to ascertain fetal condition during labor. This generic type of device includes the following accessories: signal analysis and display equipment, patient and equipment...

  4. 21 CFR 884.2640 - Fetal phonocardiographic monitor and accessories.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... phonocardiographic monitor is a device designed to detect, measure, and record fetal heart sounds electronically, in graphic form, and noninvasively, to ascertain fetal condition during labor. This generic type of device includes the following accessories: signal analysis and display equipment, patient and equipment...

  5. Clothing/Apparel and Accessories Merchandising. A Suggested Interdisciplinary Guide.

    ERIC Educational Resources Information Center

    Wray, Ralph D.; Hayden, Margaret B.

    This curriculum guide contains three sections: introduction, curriculum material, and an annotated bibliography. Introductory information provides an overview of the clothing/apparel and accessories merchandising area, aptitudes needed, and career opportunities; discusses potential career ladders, which are divided into entry level, middle

  6. Evolutionary Dynamics of the Accessory Genome of Listeria monocytogenes

    PubMed Central

    den Bakker, Henk C.; Desjardins, Christopher A.; Griggs, Allison D.; Peters, Joseph E.; Zeng, Qiandong; Young, Sarah K.; Kodira, Chinnappa D.; Yandava, Chandri; Hepburn, Theresa A.; Haas, Brian J.; Birren, Bruce W.; Wiedmann, Martin

    2013-01-01

    Listeria monocytogenes, a foodborne bacterial pathogen, is comprised of four phylogenetic lineages that vary with regard to their serotypes and distribution among sources. In order to characterize lineage-specific genomic diversity within L. monocytogenes, we sequenced the genomes of eight strains from several lineages and serotypes, and characterized the accessory genome, which was hypothesized to contribute to phenotypic differences across lineages. The eight L. monocytogenes genomes sequenced range in size from 2.85–3.14 Mb, encode 2,822–3,187 genes, and include the first publicly available sequenced representatives of serotypes 1/2c, 3a and 4c. Mapping of the distribution of accessory genes revealed two distinct regions of the L. monocytogenes chromosome: an accessory-rich region in the first 65° adjacent to the origin of replication and a more stable region in the remaining 295°. This pattern of genome organization is distinct from that of related bacteria Staphylococcus aureus and Bacillus cereus. The accessory genome of all lineages is enriched for cell surface-related genes and phosphotransferase systems, and transcriptional regulators, highlighting the selective pressures faced by contemporary strains from their hosts, other microbes, and their environment. Phylogenetic analysis of O-antigen genes and gene clusters predicts that serotype 4 was ancestral in L. monocytogenes and serotype 1/2 associated gene clusters were putatively introduced through horizontal gene transfer in the ancestral population of L. monocytogenes lineage I and II. PMID:23825666

  7. 21 CFR 878.1800 - Speculum and accessories.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 21 Food and Drugs 8 2014-04-01 2014-04-01 false Speculum and accessories. 878.1800 Section 878.1800 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES GENERAL AND PLASTIC SURGERY DEVICES Diagnostic Devices § 878.1800 Speculum and...

  8. 21 CFR 878.4160 - Surgical camera and accessories.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 21 Food and Drugs 8 2011-04-01 2011-04-01 false Surgical camera and accessories. 878.4160 Section 878.4160 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES GENERAL AND PLASTIC SURGERY DEVICES Surgical Devices § 878.4160 Surgical...

  9. 21 CFR 878.4350 - Cryosurgical unit and accessories.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 21 Food and Drugs 8 2011-04-01 2011-04-01 false Cryosurgical unit and accessories. 878.4350 Section 878.4350 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES GENERAL AND PLASTIC SURGERY DEVICES Surgical Devices § 878.4350 Cryosurgical...

  10. 21 CFR 878.1800 - Speculum and accessories.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 21 Food and Drugs 8 2011-04-01 2011-04-01 false Speculum and accessories. 878.1800 Section 878.1800 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES GENERAL AND PLASTIC SURGERY DEVICES Diagnostic Devices § 878.1800 Speculum and...

  11. 21 CFR 876.5010 - Biliary catheter and accessories.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 21 Food and Drugs 8 2014-04-01 2014-04-01 false Biliary catheter and accessories. 876.5010 Section 876.5010 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES... collecting bag that is attached to the biliary catheter by a connector and fastened to the patient with...

  12. 21 CFR 876.5010 - Biliary catheter and accessories.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 21 Food and Drugs 8 2011-04-01 2011-04-01 false Biliary catheter and accessories. 876.5010 Section 876.5010 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES... collecting bag that is attached to the biliary catheter by a connector and fastened to the patient with...

  13. 21 CFR 872.3980 - Endosseous dental implant accessories.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 21 Food and Drugs 8 2011-04-01 2011-04-01 false Endosseous dental implant accessories. 872.3980 Section 872.3980 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES..., and trial abutments. (b) Classification. Class I (general controls). The device is exempt from...

  14. 21 CFR 872.3980 - Endosseous dental implant accessories.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 21 Food and Drugs 8 2013-04-01 2013-04-01 false Endosseous dental implant accessories. 872.3980 Section 872.3980 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES..., and trial abutments. (b) Classification. Class I (general controls). The device is exempt from...

  15. 21 CFR 872.3980 - Endosseous dental implant accessories.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 21 Food and Drugs 8 2014-04-01 2014-04-01 false Endosseous dental implant accessories. 872.3980 Section 872.3980 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES..., and trial abutments. (b) Classification. Class I (general controls). The device is exempt from...

  16. 21 CFR 872.3980 - Endosseous dental implant accessories.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 21 Food and Drugs 8 2012-04-01 2012-04-01 false Endosseous dental implant accessories. 872.3980 Section 872.3980 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES..., and trial abutments. (b) Classification. Class I (general controls). The device is exempt from...

  17. 21 CFR 872.3980 - Endosseous dental implant accessories.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 21 Food and Drugs 8 2010-04-01 2010-04-01 false Endosseous dental implant accessories. 872.3980 Section 872.3980 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES..., and trial abutments. (b) Classification. Class I (general controls). The device is exempt from...

  18. Male accessory gland proteins in Drosophila: a multifaceted field [corrected].

    PubMed

    Ravi Ram, K; Ramesh, S R

    2003-12-01

    Male accessory gland in Drosophila is a secretory tissue of the reproductive system. The proteins synthesized in the accessory gland are tissue specific, stage specific-seen only during the adult stage and sex specific in the sense of male limited expression. These secretions that form a component of the seminal fluid are transferred to the female at the time of copulation and play an important role in reproduction. In conjunction with sperm, these secretory proteins assure reproductive success by reducing the female's receptivity to mating and escalating the rate of egg laying. Some of these proteins are antibacterial in nature with a likely function of protecting the female's genital tract against microbial infection during/after mating. Most of the genes involved in the synthesis of accessory gland proteins are autosomal but a few are still X-linked. Their male specific expression is achieved at the time of sex determination. The level of expression of these genes is dose dependent and they follow Mendelian pattern of segregation. Further, majority of these proteins are rapidly evolving with high rates of non-synonymous substitutions. In this review, by considering the work carried out in different fields, we have tried to generate a comprehensive picture about the male accessory gland and the role of its proteins in the reproduction of Drosophila. PMID:15320489

  19. 19 CFR 10.600 - Accessories, spare parts, or tools.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 19 Customs Duties 1 2011-04-01 2011-04-01 false Accessories, spare parts, or tools. 10.600 Section 10.600 Customs Duties U.S. CUSTOMS AND BORDER PROTECTION, DEPARTMENT OF HOMELAND SECURITY; DEPARTMENT OF THE TREASURY ARTICLES CONDITIONALLY FREE, SUBJECT TO A REDUCED RATE, ETC. Dominican...

  20. 19 CFR 10.600 - Accessories, spare parts, or tools.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 19 Customs Duties 1 2012-04-01 2012-04-01 false Accessories, spare parts, or tools. 10.600 Section 10.600 Customs Duties U.S. CUSTOMS AND BORDER PROTECTION, DEPARTMENT OF HOMELAND SECURITY; DEPARTMENT OF THE TREASURY ARTICLES CONDITIONALLY FREE, SUBJECT TO A REDUCED RATE, ETC. Dominican Republic-Central America-United States Free Trade...

  1. 19 CFR 10.600 - Accessories, spare parts, or tools.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 19 Customs Duties 1 2013-04-01 2013-04-01 false Accessories, spare parts, or tools. 10.600 Section 10.600 Customs Duties U.S. CUSTOMS AND BORDER PROTECTION, DEPARTMENT OF HOMELAND SECURITY; DEPARTMENT OF THE TREASURY ARTICLES CONDITIONALLY FREE, SUBJECT TO A REDUCED RATE, ETC. Dominican...

  2. 19 CFR 10.600 - Accessories, spare parts, or tools.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 19 Customs Duties 1 2014-04-01 2014-04-01 false Accessories, spare parts, or tools. 10.600 Section 10.600 Customs Duties U.S. CUSTOMS AND BORDER PROTECTION, DEPARTMENT OF HOMELAND SECURITY; DEPARTMENT OF THE TREASURY ARTICLES CONDITIONALLY FREE, SUBJECT TO A REDUCED RATE, ETC. Dominican...

  3. 21 CFR 884.1720 - Gynecologic laparoscope and accessories.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 21 Food and Drugs 8 2011-04-01 2011-04-01 false Gynecologic laparoscope and accessories. 884.1720 Section 884.1720 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES... of a specialized instrument or device delivery system, do not have adapters, connector channels,...

  4. 21 CFR 884.1640 - Culdoscope and accessories.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 21 Food and Drugs 8 2011-04-01 2011-04-01 false Culdoscope and accessories. 884.1640 Section 884.1640 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED... a specialized instrument or device delivery system; do not have adapters, connectors, channels,...

  5. 21 CFR 884.2740 - Perinatal monitoring system and accessories.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 21 Food and Drugs 8 2011-04-01 2011-04-01 false Perinatal monitoring system and accessories. 884.2740 Section 884.2740 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN... appropriate displays of the well-being of the fetus during pregnancy, labor, and delivery. This generic...

  6. 21 CFR 884.1690 - Hysteroscope and accessories.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 21 Food and Drugs 8 2011-04-01 2011-04-01 false Hysteroscope and accessories. 884.1690 Section 884.1690 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED... specialized instrument or device delivery system; do not have adapters, connectors, channels, or do not...

  7. 21 CFR 884.2960 - Obstetric ultrasonic transducer and accessories.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 21 Food and Drugs 8 2014-04-01 2014-04-01 false Obstetric ultrasonic transducer and accessories. 884.2960 Section 884.2960 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN... obstetric ultrasonic transducer is a device used to apply ultrasonic energy to, and to receive...

  8. 21 CFR 884.2960 - Obstetric ultrasonic transducer and accessories.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 21 Food and Drugs 8 2013-04-01 2013-04-01 false Obstetric ultrasonic transducer and accessories. 884.2960 Section 884.2960 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES OBSTETRICAL AND GYNECOLOGICAL DEVICES Obstetrical and Gynecological Monitoring Devices § 884.2960...

  9. 21 CFR 884.2660 - Fetal ultrasonic monitor and accessories.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 21 Food and Drugs 8 2014-04-01 2014-04-01 false Fetal ultrasonic monitor and accessories. 884.2660 Section 884.2660 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES... monitor is a device designed to transmit and receive ultrasonic energy into and from the pregnant...

  10. 21 CFR 884.2960 - Obstetric ultrasonic transducer and accessories.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 21 Food and Drugs 8 2011-04-01 2011-04-01 false Obstetric ultrasonic transducer and accessories. 884.2960 Section 884.2960 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN... obstetric ultrasonic transducer is a device used to apply ultrasonic energy to, and to receive...

  11. 21 CFR 884.2660 - Fetal ultrasonic monitor and accessories.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 21 Food and Drugs 8 2011-04-01 2011-04-01 false Fetal ultrasonic monitor and accessories. 884.2660 Section 884.2660 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES... monitor is a device designed to transmit and receive ultrasonic energy into and from the pregnant...

  12. 21 CFR 884.2960 - Obstetric ultrasonic transducer and accessories.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 21 Food and Drugs 8 2010-04-01 2010-04-01 false Obstetric ultrasonic transducer and accessories. 884.2960 Section 884.2960 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN... obstetric ultrasonic transducer is a device used to apply ultrasonic energy to, and to receive...

  13. 21 CFR 884.2960 - Obstetric ultrasonic transducer and accessories.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 21 Food and Drugs 8 2012-04-01 2012-04-01 false Obstetric ultrasonic transducer and accessories. 884.2960 Section 884.2960 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN... obstetric ultrasonic transducer is a device used to apply ultrasonic energy to, and to receive...

  14. 21 CFR 884.2660 - Fetal ultrasonic monitor and accessories.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 21 Food and Drugs 8 2010-04-01 2010-04-01 false Fetal ultrasonic monitor and accessories. 884.2660 Section 884.2660 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES... monitor is a device designed to transmit and receive ultrasonic energy into and from the pregnant...

  15. 14 CFR 121.251 - Engine accessory section diaphragm.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Engine accessory section diaphragm. 121.251... REQUIREMENTS: DOMESTIC, FLAG, AND SUPPLEMENTAL OPERATIONS Special Airworthiness Requirements § 121.251 Engine... complies with § 121.247 must be provided on air-cooled engines to isolate the engine power section and...

  16. 14 CFR 121.251 - Engine accessory section diaphragm.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 14 Aeronautics and Space 3 2013-01-01 2013-01-01 false Engine accessory section diaphragm. 121.251... REQUIREMENTS: DOMESTIC, FLAG, AND SUPPLEMENTAL OPERATIONS Special Airworthiness Requirements § 121.251 Engine... complies with § 121.247 must be provided on air-cooled engines to isolate the engine power section and...

  17. 14 CFR 121.251 - Engine accessory section diaphragm.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 14 Aeronautics and Space 3 2012-01-01 2012-01-01 false Engine accessory section diaphragm. 121.251... REQUIREMENTS: DOMESTIC, FLAG, AND SUPPLEMENTAL OPERATIONS Special Airworthiness Requirements § 121.251 Engine... complies with § 121.247 must be provided on air-cooled engines to isolate the engine power section and...

  18. 14 CFR 121.251 - Engine accessory section diaphragm.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 14 Aeronautics and Space 3 2011-01-01 2011-01-01 false Engine accessory section diaphragm. 121.251... REQUIREMENTS: DOMESTIC, FLAG, AND SUPPLEMENTAL OPERATIONS Special Airworthiness Requirements § 121.251 Engine... complies with § 121.247 must be provided on air-cooled engines to isolate the engine power section and...

  19. 21 CFR 874.4720 - Mediastinoscope and accessories.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 21 Food and Drugs 8 2011-04-01 2011-04-01 false Mediastinoscope and accessories. 874.4720 Section 874.4720 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES EAR, NOSE, AND THROAT DEVICES Surgical Devices § 874.4720 Mediastinoscope...

  20. 21 CFR 874.4720 - Mediastinoscope and accessories.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 21 Food and Drugs 8 2010-04-01 2010-04-01 false Mediastinoscope and accessories. 874.4720 Section 874.4720 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES EAR, NOSE, AND THROAT DEVICES Surgical Devices § 874.4720 Mediastinoscope...

  1. 21 CFR 874.4720 - Mediastinoscope and accessories.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 21 Food and Drugs 8 2012-04-01 2012-04-01 false Mediastinoscope and accessories. 874.4720 Section 874.4720 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES EAR, NOSE, AND THROAT DEVICES Surgical Devices § 874.4720 Mediastinoscope...

  2. 21 CFR 874.4720 - Mediastinoscope and accessories.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 21 Food and Drugs 8 2014-04-01 2014-04-01 false Mediastinoscope and accessories. 874.4720 Section 874.4720 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES EAR, NOSE, AND THROAT DEVICES Surgical Devices § 874.4720 Mediastinoscope...

  3. 21 CFR 874.4720 - Mediastinoscope and accessories.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 21 Food and Drugs 8 2013-04-01 2013-04-01 false Mediastinoscope and accessories. 874.4720 Section 874.4720 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES EAR, NOSE, AND THROAT DEVICES Surgical Devices § 874.4720 Mediastinoscope...

  4. 19 CFR 10.600 - Accessories, spare parts, or tools.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 19 Customs Duties 1 2010-04-01 2010-04-01 false Accessories, spare parts, or tools. 10.600 Section 10.600 Customs Duties U.S. CUSTOMS AND BORDER PROTECTION, DEPARTMENT OF HOMELAND SECURITY; DEPARTMENT OF THE TREASURY ARTICLES CONDITIONALLY FREE, SUBJECT TO A REDUCED RATE, ETC. Dominican...

  5. 21 CFR 884.2660 - Fetal ultrasonic monitor and accessories.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 21 Food and Drugs 8 2013-04-01 2013-04-01 false Fetal ultrasonic monitor and accessories. 884.2660 Section 884.2660 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES... monitor is a device designed to transmit and receive ultrasonic energy into and from the pregnant...

  6. 21 CFR 884.2660 - Fetal ultrasonic monitor and accessories.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 21 Food and Drugs 8 2012-04-01 2012-04-01 false Fetal ultrasonic monitor and accessories. 884.2660 Section 884.2660 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES... monitor is a device designed to transmit and receive ultrasonic energy into and from the pregnant...

  7. 21 CFR 884.1600 - Transabdominal amnioscope (fetoscope) and accessories.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 21 Food and Drugs 8 2010-04-01 2010-04-01 false Transabdominal amnioscope (fetoscope) and accessories. 884.1600 Section 884.1600 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND... completion of a product development protocol (PDP) is required. A PMA or a notice of completion of a PDP...

  8. 21 CFR 886.1930 - Tonometer and accessories.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 21 Food and Drugs 8 2011-04-01 2011-04-01 false Tonometer and accessories. 886.1930 Section 886.1930 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED... applying a known force on the globe of the eye and measuring the amount of indentation produced...

  9. 21 CFR 876.5900 - Ostomy pouch and accessories.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... attached to the patient's skin by an adhesive material and that is intended for use as a receptacle for... generic type of device and its accessories includes the ostomy pouch, ostomy adhesive, the disposable... bag, ostomy drainage bag with adhesive, stomal bag, ostomy protector, and the ostomy size...

  10. 21 CFR 884.2740 - Perinatal monitoring system and accessories.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 21 Food and Drugs 8 2010-04-01 2010-04-01 false Perinatal monitoring system and accessories. 884.2740 Section 884.2740 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES OBSTETRICAL AND GYNECOLOGICAL DEVICES Obstetrical and Gynecological Monitoring Devices 884.2740...

  11. Electrophysiological action of bepridil on atrioventricular accessory pathways.

    PubMed Central

    Touboul, P; Atallah, G; Kirkorian, G; Lavaud, P; Kieny, J R; Mathieu, M P; Dellinger, A

    1987-01-01

    The electrophysiologic properties of bepridil, a calcium channel blocker with additional effects on fast response tissues, were investigated in 10 patients with atrioventricular accessory pathways. Seven patients had Wolff-Parkinson-White syndrome, and three had concealed atrioventricular pre-excitation. A dose of 4 mg/kg was administered intravenously over five minutes. Bepridil increased the AH interval and the functional refractory period of the atrioventricular node. The effective refractory periods of the right atrium and right ventricle were also increased. Bepridil prolonged refractoriness in the accessory pathway both in the anterograde and retrograde direction. After bepridil administration it was impossible to induce reciprocating tachycardia electrically in two patients because of conduction block in the normal pathway. On the other hand, the zone of tachycardia was often increased after bepridil. Nevertheless, the heart rate during tachycardia was slowed by depression of conduction in both the normal and accessory pathways. The findings of this study provide a basis for the antiarrhythmic action of bepridil in patients with atrioventricular accessory pathways. PMID:3499924

  12. 21 CFR 864.3600 - Microscopes and accessories.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... and accessories (through a change in the light source) used for medical purposes include the following... phase relationship of light that passes around the object and through the object. (2) Fluorescense microscopes, which permit examination of specimens stained with fluorochromes that fluoresce under...

  13. 21 CFR 864.3600 - Microscopes and accessories.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... and accessories (through a change in the light source) used for medical purposes include the following... phase relationship of light that passes around the object and through the object. (2) Fluorescense microscopes, which permit examination of specimens stained with fluorochromes that fluoresce under...

  14. 21 CFR 890.3025 - Prosthetic and orthotic accessory.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 21 Food and Drugs 8 2013-04-01 2013-04-01 false Prosthetic and orthotic accessory. 890.3025 Section 890.3025 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES PHYSICAL MEDICINE DEVICES Physical Medicine Prosthetic Devices §...

  15. 21 CFR 890.3025 - Prosthetic and orthotic accessory.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 21 Food and Drugs 8 2010-04-01 2010-04-01 false Prosthetic and orthotic accessory. 890.3025 Section 890.3025 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES PHYSICAL MEDICINE DEVICES Physical Medicine Prosthetic Devices §...

  16. 21 CFR 890.3025 - Prosthetic and orthotic accessory.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 21 Food and Drugs 8 2012-04-01 2012-04-01 false Prosthetic and orthotic accessory. 890.3025 Section 890.3025 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES PHYSICAL MEDICINE DEVICES Physical Medicine Prosthetic Devices §...

  17. 21 CFR 890.3025 - Prosthetic and orthotic accessory.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 21 Food and Drugs 8 2011-04-01 2011-04-01 false Prosthetic and orthotic accessory. 890.3025 Section 890.3025 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES PHYSICAL MEDICINE DEVICES Physical Medicine Prosthetic Devices §...

  18. 21 CFR 890.3025 - Prosthetic and orthotic accessory.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 21 Food and Drugs 8 2014-04-01 2014-04-01 false Prosthetic and orthotic accessory. 890.3025 Section 890.3025 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES PHYSICAL MEDICINE DEVICES Physical Medicine Prosthetic Devices §...

  19. 21 CFR 876.4890 - Urological table and accessories.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... urinary tract. The table can be adjusted into position manually or electrically. (b) Classification. (1... 21 Food and Drugs 8 2011-04-01 2011-04-01 false Urological table and accessories. 876.4890 Section... (CONTINUED) MEDICAL DEVICES GASTROENTEROLOGY-UROLOGY DEVICES Surgical Devices 876.4890 Urological table...

  20. 21 CFR 876.4890 - Urological table and accessories.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... urinary tract. The table can be adjusted into position manually or electrically. (b) Classification. (1... 21 Food and Drugs 8 2013-04-01 2013-04-01 false Urological table and accessories. 876.4890 Section... (CONTINUED) MEDICAL DEVICES GASTROENTEROLOGY-UROLOGY DEVICES Surgical Devices 876.4890 Urological table...

  1. 21 CFR 876.4890 - Urological table and accessories.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... urinary tract. The table can be adjusted into position manually or electrically. (b) Classification. (1... 21 Food and Drugs 8 2010-04-01 2010-04-01 false Urological table and accessories. 876.4890 Section... (CONTINUED) MEDICAL DEVICES GASTROENTEROLOGY-UROLOGY DEVICES Surgical Devices 876.4890 Urological table...

  2. 21 CFR 876.4890 - Urological table and accessories.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... urinary tract. The table can be adjusted into position manually or electrically. (b) Classification. (1... 21 Food and Drugs 8 2014-04-01 2014-04-01 false Urological table and accessories. 876.4890 Section... (CONTINUED) MEDICAL DEVICES GASTROENTEROLOGY-UROLOGY DEVICES Surgical Devices 876.4890 Urological table...

  3. 21 CFR 876.4890 - Urological table and accessories.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... urinary tract. The table can be adjusted into position manually or electrically. (b) Classification. (1... 21 Food and Drugs 8 2012-04-01 2012-04-01 false Urological table and accessories. 876.4890 Section... (CONTINUED) MEDICAL DEVICES GASTROENTEROLOGY-UROLOGY DEVICES Surgical Devices 876.4890 Urological table...

  4. 21 CFR 876.1500 - Endoscope and accessories.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ..., and allow observation or manipulation of body cavities, hollow organs, and canals. The device consists of various rigid or flexible instruments that are inserted into body spaces and may include an optical system for conveying an image to the user's eye and their accessories may assist in gaining...

  5. 21 CFR 878.1800 - Speculum and accessories.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 21 Food and Drugs 8 2013-04-01 2013-04-01 false Speculum and accessories. 878.1800 Section 878.1800 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES GENERAL AND PLASTIC SURGERY DEVICES Diagnostic Devices 878.1800 Speculum and...

  6. 21 CFR 878.1800 - Speculum and accessories.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 21 Food and Drugs 8 2012-04-01 2012-04-01 false Speculum and accessories. 878.1800 Section 878.1800 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES GENERAL AND PLASTIC SURGERY DEVICES Diagnostic Devices 878.1800 Speculum and...

  7. 21 CFR 878.1800 - Speculum and accessories.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 21 Food and Drugs 8 2010-04-01 2010-04-01 false Speculum and accessories. 878.1800 Section 878.1800 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES GENERAL AND PLASTIC SURGERY DEVICES Diagnostic Devices 878.1800 Speculum and...

  8. 19 CFR 10.920 - Accessories, spare parts, or tools.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 19 Customs Duties 1 2013-04-01 2013-04-01 false Accessories, spare parts, or tools. 10.920 Section 10.920 Customs Duties U.S. CUSTOMS AND BORDER PROTECTION, DEPARTMENT OF HOMELAND SECURITY; DEPARTMENT OF THE TREASURY ARTICLES CONDITIONALLY FREE, SUBJECT TO A REDUCED RATE, ETC. United States-Peru...

  9. 19 CFR 10.920 - Accessories, spare parts, or tools.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 19 Customs Duties 1 2014-04-01 2014-04-01 false Accessories, spare parts, or tools. 10.920 Section 10.920 Customs Duties U.S. CUSTOMS AND BORDER PROTECTION, DEPARTMENT OF HOMELAND SECURITY; DEPARTMENT OF THE TREASURY ARTICLES CONDITIONALLY FREE, SUBJECT TO A REDUCED RATE, ETC. United States-Peru...

  10. 19 CFR 10.920 - Accessories, spare parts, or tools.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 19 Customs Duties 1 2012-04-01 2012-04-01 false Accessories, spare parts, or tools. 10.920 Section 10.920 Customs Duties U.S. CUSTOMS AND BORDER PROTECTION, DEPARTMENT OF HOMELAND SECURITY; DEPARTMENT OF THE TREASURY ARTICLES CONDITIONALLY FREE, SUBJECT TO A REDUCED RATE, ETC. United States-Peru...

  11. The sea lamprey has a primordial accessory olfactory system

    PubMed Central

    2013-01-01

    Background A dual olfactory system, represented by two anatomically distinct but spatially proximate chemosensory epithelia that project to separate areas of the forebrain, is known in several classes of tetrapods. Lungfish are the earliest evolving vertebrates known to have this dual system, comprising a main olfactory and a vomeronasal system (VNO). Lampreys, a group of jawless vertebrates, have a single nasal capsule containing two anatomically distinct epithelia, the main (MOE) and the accessory olfactory epithelia (AOE). We speculated that lamprey AOE projects to specific telencephalic regions as a precursor to the tetrapod vomeronasal system. Results To test this hypothesis, we characterized the neural circuits and molecular profiles of the accessory olfactory epithelium in the sea lamprey (Petromyzon marinus). Neural tract-tracing revealed direct and reciprocal connections with the dorsomedial telencephalic neuropil (DTN) which in turn projects directly to the dorsal pallium and the rostral hypothalamus. High-throughput sequencing demonstrated that the main and the accessory olfactory epithelia have virtually identical profiles of expressed genes. Real time quantitative PCR confirmed expression of representatives of all 3 chemoreceptor gene families identified in the sea lamprey genome. Conclusion Anatomical and molecular evidence shows that the sea lamprey has a primordial accessory olfactory system that may serve a chemosensory function. PMID:23957559

  12. 19 CFR 10.456 - Accessories, spare parts or tools.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 19 Customs Duties 1 2011-04-01 2011-04-01 false Accessories, spare parts or tools. 10.456 Section 10.456 Customs Duties U.S. CUSTOMS AND BORDER PROTECTION, DEPARTMENT OF HOMELAND SECURITY; DEPARTMENT OF THE TREASURY ARTICLES CONDITIONALLY FREE, SUBJECT TO A REDUCED RATE, ETC. United States-Chile...

  13. 21 CFR 884.1720 - Gynecologic laparoscope and accessories.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 21 Food and Drugs 8 2010-04-01 2010-04-01 false Gynecologic laparoscope and accessories. 884.1720 Section 884.1720 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES OBSTETRICAL AND GYNECOLOGICAL DEVICES Obstetrical and Gynecological...

  14. 21 CFR 884.1720 - Gynecologic laparoscope and accessories.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 21 Food and Drugs 8 2013-04-01 2013-04-01 false Gynecologic laparoscope and accessories. 884.1720 Section 884.1720 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES OBSTETRICAL AND GYNECOLOGICAL DEVICES Obstetrical and Gynecological...

  15. 21 CFR 884.1720 - Gynecologic laparoscope and accessories.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 21 Food and Drugs 8 2012-04-01 2012-04-01 false Gynecologic laparoscope and accessories. 884.1720 Section 884.1720 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES OBSTETRICAL AND GYNECOLOGICAL DEVICES Obstetrical and Gynecological...

  16. 21 CFR 884.1720 - Gynecologic laparoscope and accessories.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 21 Food and Drugs 8 2014-04-01 2014-04-01 false Gynecologic laparoscope and accessories. 884.1720 Section 884.1720 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES OBSTETRICAL AND GYNECOLOGICAL DEVICES Obstetrical and Gynecological...

  17. 21 CFR 884.2740 - Perinatal monitoring system and accessories.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 21 Food and Drugs 8 2014-04-01 2014-04-01 false Perinatal monitoring system and accessories. 884.2740 Section 884.2740 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN... appropriate displays of the well-being of the fetus during pregnancy, labor, and delivery. This generic...

  18. 19 CFR 10.456 - Accessories, spare parts or tools.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 19 Customs Duties 1 2010-04-01 2010-04-01 false Accessories, spare parts or tools. 10.456 Section 10.456 Customs Duties U.S. CUSTOMS AND BORDER PROTECTION, DEPARTMENT OF HOMELAND SECURITY; DEPARTMENT OF THE TREASURY ARTICLES CONDITIONALLY FREE, SUBJECT TO A REDUCED RATE, ETC. United States-Chile...

  19. 21 CFR 884.2640 - Fetal phonocardiographic monitor and accessories.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 21 Food and Drugs 8 2013-04-01 2013-04-01 false Fetal phonocardiographic monitor and accessories. 884.2640 Section 884.2640 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES OBSTETRICAL AND GYNECOLOGICAL DEVICES Obstetrical and Gynecological Monitoring Devices 884.2640...

  20. 49 CFR 178.255-7 - Protection of valves and accessories.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 49 Transportation 2 2010-10-01 2010-10-01 false Protection of valves and accessories. 178.255-7... FOR PACKAGINGS Specifications for Portable Tanks 178.255-7 Protection of valves and accessories. (a) All valves, fittings, accessories, safety devices, gauging devices, and the like shall be...

  1. Controlled Speed Accessory Drive Program: Programmatic environmental assessment

    SciTech Connect

    Not Available

    1980-04-14

    This document is a programmatic environmental assessment of the Department of Energy's Controlled Speed Accessory Drive (CSAD) program and alternatives. Its purpose is to evaluate CSAD alternatives to assure that environmental priorities are considered at the earliest meaningful point in the decision-making process, and to facilitate the choice of preferable options. This document accords with both the letter and the spirit of the National Environmental Policy Act (NEPA) requirements as interpreted and standardized by the Council on Environmental Quality. The major conclusions reached in this assessment are as follows: (1) controlled speed accessory drive bolted onto existing automobile designs may not provide adequate engine cooling when operated at high ambient temperatures or under heavy loading; (2) when the CSAD is adopted for production, the emissions effect of controlled speed accessory drive will not be a problem. Auto emissions are already controlled by existing regulations, and automobiles with a CSAD must meet the same emission standards as non-CSAD vehicles; (3) the nature of the impact is such that significant expansion of the market will not affect it. The one adverse environmental concern, the engine cooling problem, will probably be remedied by proper optimization of automobiles for controlled speed accessory drive, or, until the problem can be alleviated, it will delay commercialization of the drive. No safety hazard will be introduced to the American roadways. In addition, no adverse environmental concerns directly related to the Controlled Speed Accessory Drive demonstration program are anticipated. Therefore, it is recommended that a finding of no significant impact be prepared.

  2. Determination of radon concentration in water using RAD7 with RAD H2O accessories

    NASA Astrophysics Data System (ADS)

    Malik, M. F. I.; Rabaiee, N. A.; Jaafar, M. S.

    2015-04-01

    In the last decade, the radon issue has become one of the major problems of radiation protection. Radon exposure occurs when using water for showering, washing dishes, cooking and drinking water. RAD7 and Rad H20 accessories were used in order to measure radon concentration in water sample. In this study, four types of water were concerns which are reverse osmosis (drinking water), mineral water, tap water and well water. Reverse osmosis (drinking water) and mineral water were bought from the nearest supermarket while tap water and well water were taken from selected areas of Pulau Pinang and Kedah. Total 20 samples were taken with 5 samples for each type of water. The measured radon concentration ranged from 2.9±2.9 to 79.5±17 pCi/L, 2.9±2.9 to 67.8±16 pCi/L, 15.97±7 to 144.25±24 pCi/L and 374.89±37 to 6409.03±130 pCi/L in reverse osmosis (drinking water), mineral water, tap water and well water. Well water has the highest radon compared to others. It was due to their geological element such as granite. Results for all types of water are presented and compared with maximum contamination limit (MCL) recommended by United State Environmental Protection Agency (USEPA) which is 300pCi/L. Reverse osmosis water, mineral water and tap water were fall below MCL. However, well water was exceeded maximum level that was recommended. Thus, these findings were suggested that an action should be taken to reduce radon concentration level in well water as well as reduce a health risk towards the public.

  3. Perioperative Identification of an Accessory Fissure of the Right Lung.

    PubMed

    Taverne, Yannick; Kleinrensink, Gert-Jan; de Rooij, Peter

    2015-01-01

    Anatomical variations of lungs are common in clinical practice; however, they are sometimes overlooked in routine imaging. Surgical anatomy of the lung is complex and many variations are known to occur. A defective pulmonary development gives rise to variations in lobes and fissures. Morphological presentation is of clinical importance and profound knowledge of the organogenesis and functional anatomy is imperative for the interpretation and evaluation of lung pathophysiology and subsequent surgical intervention. However, appreciating them on radiographs and CT scans is difficult and they are therefore often either not identified or completely misinterpreted. As presented in this case report, an accessory fissure separating the superior segment of the right lower lobe from its native lobe was seen perioperatively and could only retrospectively be defined on X-rays and CT scan. It is imperative to keep in mind that accessory fissures can be missed on imaging studies and thus can make the surgical procedure more challenging. PMID:26185701

  4. Case of combined paratracheal air cyst and accessory cardiac bronchus.

    PubMed

    Ichikawa, Tamaki; Ono, Shun; Mori, Naoko; Sekiguchi, Tatsuya; Koizumi, Jun; Imai, Yutaka

    2014-07-01

    Paratracheal air cyst (PTAC) is rather frequently detected on thoracic multi-detector computed tomography (MDCT) in daily practice. Accessory cardiac bronchus (ACB) is a rare anomaly; however, the incidence rate is increasing with the use of recent high quality MDCT scanners. We report a case of combined PTAC and ACB that was incidentally detected by MDCT. Three dimensional CT images revealed anatomical details. PMID:25027253

  5. The consistent presence of the human accessory deep peroneal nerve.

    PubMed

    Kudoh, H; Sakai, T; Horiguchi, M

    1999-01-01

    Twenty-four human legs were dissected macroscopically to study the morphological details of the accessory deep peroneal nerve. This nerve arose from the superficial peroneal nerve and descended in the lateral compartment of the leg, deep to peroneus longus along the posterior border of peroneus brevis. Approaching the ankle joint, this nerve passed through the peroneal tunnels to wind around the lateral malleolus; it then crossed beneath the peroneus brevis tendon anteriorly to reach the dorsum of the foot. The accessory deep peroneal nerve was found in every case examined and constantly gave off muscular branches to peroneus brevis and sensory branches to the ankle region. In addition, this nerve occasionally had muscular branches to peroneus longus and extensor digitorum brevis, and sensory branches to the fibula and the foot. The anomalous muscles around the lateral malleolus were also innervated by this nerve. Neither cutaneous branches nor communicating branches with other nerves were found. The present study reveals that the accessory deep peroneal nerve is consistently present and possesses a proper motor and sensory distribution in the lateral region of the leg and ankle. It is not an anomalous nerve as has previously been suggested. PMID:10227671

  6. Melanocortin receptor accessory proteins in adrenal disease and obesity

    PubMed Central

    Jackson, David S.; Ramachandrappa, Shwetha; Clark, Adrian J.; Chan, Li F.

    2015-01-01

    Melanocortin receptor accessory proteins (MRAPs) are regulators of the melanocortin receptor family. MRAP is an essential accessory factor for the functional expression of the MC2R/ACTH receptor. The importance of MRAP in adrenal gland physiology is demonstrated by the clinical condition familial glucocorticoid deficiency type 2. The role of its paralog melanocortin-2-receptor accessory protein 2 (MRAP2), which is predominantly expressed in the hypothalamus including the paraventricular nucleus, has recently been linked to mammalian obesity. Whole body deletion and targeted brain specific deletion of the Mrap2 gene result in severe obesity in mice. Interestingly, Mrap2 complete knockout (KO) mice have increased body weight without detectable changes to food intake or energy expenditure. Rare heterozygous variants of MRAP2 have been found in humans with severe, early-onset obesity. In vitro data have shown that Mrap2 interaction with the melanocortin-4-receptor (Mc4r) affects receptor signaling. However, the mechanism by which Mrap2 regulates body weight in vivo is not fully understood and differences between the phenotypes of Mrap2 and Mc4r KO mice may point toward Mc4r independent mechanisms. PMID:26113808

  7. Hypoxia exaggerates inspiratory accessory muscle deoxygenation during hyperpnoea.

    PubMed

    Katayama, Keisho; Suzuki, Yasuhiro; Hoshikawa, Masako; Ohya, Toshiyuki; Oriishi, Marie; Itoh, Yuka; Ishida, Koji

    2015-06-01

    The purpose of this study was to elucidate inspiratory accessory muscle deoxygenation and myoelectric activity during isolated volitional hyperpnoea under hypoxic conditions. Subjects performed voluntary isocapnic hyperpnoea (tidal volume=30-40% of forced vital capacity, breathing frequency=60 breaths/min) in normoxia [inspired gas fraction (FIO?)=0.21] and hypoxia (FIO?). Muscle deoxyhemoglobin/myoglobin (Deoxy-Hb/Mb) and muscle oxygen saturation (SMO?) using near-infrared spectroscopy and surface electromyography were measured from sternocleidomastoid (SCM) and intercostal (IC) muscles. During hyperpnoea, increases in Deoxy-Hb/Mb and reductions of SMO? in the SCM and IC muscles were larger (P<0.05) in hypoxia than those in normoxia. Under hypoxic conditions, the electromyogram increases from the SCM and IC muscles during hyperpnoea were greater than that under the normoxic conditions. These results suggest that inspiratory accessory muscle deoxygenation during isolated hyperpnoea is exaggerated in hypoxia compared with normoxia and that hypoxia has a significant impact on inspiratory accessory muscle activation. PMID:25747385

  8. Industrial Minerals.

    ERIC Educational Resources Information Center

    Brady, Lawrence L.

    1983-01-01

    Discusses trends in and factors related to the production of industrial minerals during 1982, indicating that, as 1981 marked a downturn in production of industrial minerals, 1982 continued the trend with temporary and permanent cutbacks in mine and plant production. Includes highlights of several conferences/conference papers in this field.

  9. Industrial Minerals.

    ERIC Educational Resources Information Center

    Brady, Lawrence L.

    1983-01-01

    Discusses trends in and factors related to the production of industrial minerals during 1982, indicating that, as 1981 marked a downturn in production of industrial minerals, 1982 continued the trend with temporary and permanent cutbacks in mine and plant production. Includes highlights of several conferences/conference papers in this field.…

  10. An Accessory Agonist Binding Site Promotes Activation of ?4?2* Nicotinic Acetylcholine Receptors.

    PubMed

    Wang, Jingyi; Kuryatov, Alexander; Sriram, Aarati; Jin, Zhuang; Kamenecka, Theodore M; Kenny, Paul J; Lindstrom, Jon

    2015-05-29

    Neuronal nicotinic acetylcholine receptors containing ?4, ?2, and sometimes other subunits (?4?2* nAChRs) regulate addictive and other behavioral effects of nicotine. These nAChRs exist in several stoichiometries, typically with two high affinity acetylcholine (ACh) binding sites at the interface of ?4 and ?2 subunits and a fifth accessory subunit. A third low affinity ACh binding site is formed when this accessory subunit is ?4 but not if it is ?2. Agonists selective for the accessory ACh site, such as 3-[3-(3-pyridyl)-1,2,4-oxadiazol-5-yl]benzonitrile (NS9283), cannot alone activate a nAChR but can facilitate more efficient activation in combination with agonists at the canonical ?4?2 sites. We therefore suggest categorizing agonists according to their site selectivity. NS9283 binds to the accessory ACh binding site; thus it is termed an accessory site-selective agonist. We expressed (?4?2)2 concatamers in Xenopus oocytes with free accessory subunits to obtain defined nAChR stoichiometries and ?4/accessory subunit interfaces. We show that ?2, ?3, ?4, and ?6 accessory subunits can form binding sites for ACh and NS9283 at interfaces with ?4 subunits, but ?2 and ?4 accessory subunits cannot. To permit selective blockage of the accessory site, ?4 threonine 126 located on the minus side of ?4 that contributes to the accessory site, but not the ?4?2 sites, was mutated to cysteine. Alkylation of this cysteine with a thioreactive reagent blocked activity of ACh and NS9283 at the accessory site. Accessory agonist binding sites are promising drug targets. PMID:25869137

  11. Mineral Quantification.

    PubMed

    2016-01-01

    Optimal intakes of elements, such as sodium, potassium, magnesium, calcium, manganese, copper, zinc and iodine, can reduce individual risk factors including those related to cardiovascular diseases among humans and animals. In order to meet the need for vitamins, major minerals, trace minerals, fatty acids and amino acids, it is necessary to include a full spectrum programme that can deliver all of the nutrients in the right ratio. Minerals are required for normal growth, activities of muscles, skeletal development (such as calcium), cellular activity, oxygen transport (copper and iron), chemical reactions in the body, intestinal absorption (magnesium), fluid balance and nerve transmission (sodium and potassium), as well as the regulation of the acid base balance (phosphorus). The chapter discusses the chemical and instrumentation techniques used for estimation of minerals such as N, P, Ca, Mg, K, Na, Fe, Cu, Zn, B and Mb. PMID:26939263

  12. Clay Minerals

    SciTech Connect

    Mueller, Karl T.; Sanders, Rebecca L.; Washton, Nancy M.

    2014-03-14

    Clay minerals are important components of the environment and are involved or implicated in processes such as the uptake of pollutants and the release of nutrients and as potential platforms for a number of chemical reactions. Owing to their small particle sizes (typically, on the order of microns or smaller) and mixing with a variety of other minerals and soil components, advanced characterization methods are needed to study their structures, dynamics, and reactivities. In this article, we describe the use of solid-state NMR methods to characterize the structures and chemistries of clay minerals. Early one-pulse magic-angle spinning (MAS) NMR studies of 27Al and 29Si have now been enhanced and extended with new studies utilizing advanced methodologies (such as Multiple Quantum MAS) as well as studies of less-sensitive nuclei. In additional work, the issue of reactivity of clay minerals has been addressed, including studies of reactive surface area in the environment. Utilizations of NMR-sensitive nuclides within the clay minerals themselves, and in molecules that react with speci?c sites on the clay mineral surfaces, have aided in understanding the reactivity of these complex aluminosilicate systems.

  13. Role of the Accessory Parotid Gland in the Etiology of Parotitis: Statistical Analysis of Sialographic Features

    PubMed Central

    Zhu, Wangyong; Hu, Fengchun; Liu, Xingguang; Guo, Songcan; Tao, Qian

    2016-01-01

    This retrospective study aimed to identify if the existence of the accessory parotid gland correlated with the etiology of parotitis. This may aid the development of better treatment strategies in the future. Sialographic features of cases with parotitis and healthy subjects were reviewed. The chi-square test was used to compare the incidence of accessory parotid gland between the groups. The Student’s t test was used to compare the length of Stensen’s duct, the length from the orifice to the confluence of the accessory duct, and the angle between the accessory duct and Stensen’s duct between the groups. The incidence of accessory parotid gland in patients with parotitis was 71.8% (28/39), which was significantly higher than that in healthy subjects (P = 0.005). Patients with parotitis had a longer Stensen’s duct than healthy subjects (P = 0.003). There was no significant difference in the length from the orifice to the confluence of the accessory duct or the angle between the accessory duct and Stensen’s duct (P = 0.136 and 0.511, respectively) between the groups. The accessory parotid gland might play a role in the pathogenesis of parotitis. The existence of an accessory parotid gland is likely to interfere with salivary flow. Computational fluid dynamics analysis of salivary flow in the ductal system would be useful in future etiologic studies on parotitis. PMID:26913509

  14. Role of the Accessory Parotid Gland in the Etiology of Parotitis: Statistical Analysis of Sialographic Features.

    PubMed

    Zhu, Wangyong; Hu, Fengchun; Liu, Xingguang; Guo, Songcan; Tao, Qian

    2016-01-01

    This retrospective study aimed to identify if the existence of the accessory parotid gland correlated with the etiology of parotitis. This may aid the development of better treatment strategies in the future. Sialographic features of cases with parotitis and healthy subjects were reviewed. The chi-square test was used to compare the incidence of accessory parotid gland between the groups. The Student's t test was used to compare the length of Stensen's duct, the length from the orifice to the confluence of the accessory duct, and the angle between the accessory duct and Stensen's duct between the groups. The incidence of accessory parotid gland in patients with parotitis was 71.8% (28/39), which was significantly higher than that in healthy subjects (P = 0.005). Patients with parotitis had a longer Stensen's duct than healthy subjects (P = 0.003). There was no significant difference in the length from the orifice to the confluence of the accessory duct or the angle between the accessory duct and Stensen's duct (P = 0.136 and 0.511, respectively) between the groups. The accessory parotid gland might play a role in the pathogenesis of parotitis. The existence of an accessory parotid gland is likely to interfere with salivary flow. Computational fluid dynamics analysis of salivary flow in the ductal system would be useful in future etiologic studies on parotitis. PMID:26913509

  15. Accessory Scrotum With Perineal Lipoma: Pathologic Evaluation Including Androgen Receptor Expression

    PubMed Central

    Iida, Keitaro; Mizuno, Kentaro; Nishio, Hidenori; Moritoki, Yoshinobu; Kamisawa, Hideyuki; Kurokawa, Satoshi; Kohri, Kenjiro; Hayashi, Yutaro

    2014-01-01

    Accessory scrotum is an unusual developmental anomaly defined as additional scrotal tissue in addition to a normally developed scrotum. The accessory scrotum arises posterior to the normally located scrotum and does not contain a testis. We report a case of an 18-month-old boy with an accessory scrotum attached to a perineal lipoma. We resected both and determined histologically that they were of the same tissue as the scrotum, including the presence of androgen receptor expression. To the best of our knowledge, this is the first case to assess androgen receptor expression in an accessory scrotum using immunostaining.

  16. Thermomechanical milling of accessory lithics in volcanic conduits

    NASA Astrophysics Data System (ADS)

    Campbell, Michelle E.; Russell, James K.; Porritt, Lucy A.

    2013-09-01

    Accessory lithic clasts recovered from pyroclastic deposits commonly result from the failure of conduit wall rocks, and represent an underutilized resource for constraining conduit processes during explosive volcanic eruptions. The morphological features of lithic clasts provide distinctive 'textural fingerprints' of processes that have reshaped them during transport in the conduit. Here, we present the first study focused on accessory lithic clast morphology and show how the shapes and surfaces of these accessory pyroclasts can inform on conduit processes. We use two main types of accessory lithic clasts from pyroclastic fallout deposits of the 2360 B.P. subplinian eruption of Mount Meager, British Columbia, as a case study: (i) rough and subangular dacite clasts, and (ii) variably rounded and smoothed monzogranite clasts. The quantitative morphological data collected on these lithics include: mass, volume, density, 2-D image analysis of convexity (C), and 3-D laser scans for sphericity (?) and smoothness (S). Shaping and comminution (i.e. milling) of clasts within the conduit are ascribed to three processes: (1) disruptive fragmentation due to high-energy impacts between clasts or between clasts and conduit walls, (2) ash-blasting of clasts suspended within the volcanic flux, and (3) thermal effects. We use a simplified conduit eruption model to predict ash-blasting velocities and lithic residence times as a function of clast size and source depth, thereby constraining the lithic milling processes. The extent of shape and surface modification (i.e. rounding and honing) is directly proportional to clast residence times within the conduit prior to evacuation. We postulate that the shallow-seated dacite clasts remain subangular and rough due to short (<2 min) residence times, whereas monzogranite clasts are much more rounded and smoothed due to deeper source depths and consequently longer residence times (up to 1 h). Larger monzogranite clasts are smoother than smaller clasts due to longer residence times and to greater differential velocities within the ash-laden jet. Lastly, our model residence times and mass loss estimates for rounded clasts are used to estimate minimum attrition rates due to volcanic ash-blasting within the conduit (e.g., 12 cm3?s-1 for 25 cm clasts, sourced at 2500 m depth).

  17. Antegrade or retrograde accessory pathway conduction: who dies first?

    PubMed

    Hadid, Claudio; Di Toro, Dario; Gallino, Sebatian; Labadet, Carlos

    2012-05-01

    A 36 year-old man with Wolff Parkinson White syndrome due to a left-sided accessory pathway (AP) was referred for catheter ablation. Whether abolition of antegrade and retrograde AP conduction during ablation therapy occurs simultaneously, is unclear. At the ablation procedure, radiofrequency delivery resulted in loss of preexcitation followed by a short run of orthodromic tachycardia with eccentric atrial activation, demonstrating persistence of retrograde conduction over the AP after abolition of its antegrade conduction. During continued radiofrequency delivery at the same position, the fifth non-preexcitated beat failed to conduct retrogradely and the tachycardia ended. In this case, antegrade AP conduction was abolished earlier than retrograde conduction. PMID:22665963

  18. The role of accessory obturator arteries in prostatic arterial embolization.

    PubMed

    Bilhim, Tiago; Pisco, Joao; Pinheiro, Luís Campos; Rio Tinto, Hugo; Fernandes, Lúcia; Pereira, José A

    2014-06-01

    In 9 of 491 patients (1.8%) who underwent prostatic arterial embolization (PAE) for benign prostatic hyperplasia from March 2009-November 2013, prostatic arteries arose from the external iliac artery via an accessory obturator artery (AOA). Computed tomography angiography performed before the procedure identified the variant and allowed planning before the procedure. The nine AOAs were catheterized from a contralateral femoral approach. Bilateral PAE was technically successful in the nine patients. There was a mean decrease in international prostate symptom score of 6.5 points and a mean prostate volume reduction of 15.1% (mean follow-up, 4.8 mo) in the nine patients. PMID:24857944

  19. [Effect of oral propafenon on accessory pathways of atrioventricular conduction].

    PubMed

    Lacroix, H; Frank, R; Tonet, J L; Fontaine, G; Wajman, A; Squeir, S; Grosgogeat, Y

    1985-04-01

    Fifteen consecutive patients with accessory AV pathways comprising 12 cases of the Wolff-Parkinson-White syndrome and 3 cases with exclusively retrograde conduction diagnosed by endocavitary electrophysiological investigation were studied. 5 patients had paroxysmal atrial fibrillation and the other 10 had reciprocating orthodromic tachycardia. 12 patients underwent electrophysiological investigation to measure the refractory periods and anterograde and retrograde conduction times in sinus rhythm and induced reciprocating tachycardia treatment with oral propafenone at a dose of 900 mg/day for 3 to 6 days. The refractory periods of anterograde conduction and the conduction times were then measured using an endocavitary atrial recording electrode left in position after the initial investigation. The anterograde Wenckebach point decreased from 259 +/- 35/min to 158 +/- 13/min (p less than 0.001). The refractory periods were increased from 270 +/- 45 ms to 371 +/- 100 ms (p less than 0.05). Atrial fibrillation could only be initiated in 2 cases with a mean rate which had decreased from 258 to 130/min. Reciprocating tachycardia could only be initiated in 5 cases and then with a slower rate (average cycle length increasing from 352 +/- 52 ms to 430 +/- 41 ms). Eight of these patients continued the treatment for over one year without recurrence of their arrhythmias, confirming the long-term efficacy of propafenone in the prevention of arrhythmias complicating accessory AV conduction pathways. PMID:2860884

  20. Estrogen receptor accessory proteins: effects on receptor-DNA interactions.

    PubMed Central

    Landel, C C; Kushner, P J; Greene, G L

    1995-01-01

    Despite a wealth of information about the structure and composition of steroid receptors and their functional domains, little is known about the role of accessory proteins as mediators of receptor activity. To better define the role of such proteins in estrogen receptor (ER) function, we have used immunoaffinity, steroid affinity, and site-specific DNA-affinity chromatography to identify and characterize proteins that associate with human ER (hER) in extracts from MCF-7 cells and hER-expressing CHO (CHO-ER) cells. In addition to the expected 66-kDa hER, a 70-kDa protein was obtained and subsequently identified as a member of the heat shock protein family (hsp70). A 55-kDa protein, detected by all three approaches, was identified as a member of the protein disulfide isomerase family (PDI). Two proteins that were preferentially retained by an ER-specific DNA affinity column (p48 and p45) remain unidentified. Maximal interaction of purified hER with the vitellogenin A2 estrogen response element (ERE) occurred in the presence of all four associated proteins isolated by DNA-affinity chromatography. The increased stability of this complex was due primarily to an increase in the association rate of hER with ERE. Thus, accessory proteins may be required for optimal interaction of ER with EREs. PMID:8593869

  1. Decontamination of minimally invasive surgical endoscopes and accessories.

    PubMed

    Ayliffe, G

    2000-08-01

    (1) Infections following invasive endoscopy are rare and are usually of endogenous origin. Nevertheless, infections do occur due to inadequate cleaning and disinfection and the use of contaminated rinse water and processing equipment. (2) Rigid and flexible operative endoscopes and accessories should be thoroughly cleaned and preferably sterilized using properly validated processes. (3) Heat tolerant operative endoscopes and accessories should be sterilized using a vacuum assisted steam sterilizer. Use autoclavable instrument trays or containers to protect equipment during transit and processing. Small bench top sterilizers without vacuum assisted air removal are unsuitable for packaged and lumened devices. (4) Heat sensitive rigid and flexible endoscopes and accessories should preferably be sterilized using ethylene oxide, low temperature steam and formaldehyde (rigid only) or gas plasma (if appropriate). (5) If there are insufficient instruments or time to sterilize invasive endoscopes, or if no suitable method is available locally, they may be disinfected by immersion in 2% glutaraldehyde or a suitable alternative. An immersion time of at least 10 min should be adopted for glutaraldehyde. This is sufficient to inactivate most vegetative bacteria and viruses including HIV and hepatitis B virus (HBV). Longer contact times of 20 min or more may be necessary if a mycobacterial infection is known or suspected. At least 3 h immersion in glutaraldehyde is required to kill spores. (6) Glutaraldehyde is irritant and sensitizing to the skin, eyes and respiratory tract. Measures must be taken to ensure glutaraldehyde is used in a safe manner, i.e., total containment and/or extraction of harmful vapour and the provision of suitable personal protective equipment, i.e., gloves, apron and eye protection if splashing could occur. Health surveillance of staff is recommended and should include a pre-employment enquiry regarding asthma, skin and mucosal sensitivity problems and lung function testing by spirometry. (7) Possible alternative disinfectants to glutaraldehyde include peracetic acid (0.2-0.35%), chlorine dioxide (700-1100 ppm) and superoxidized water. These are very effective, killing vegetative bacteria, including mycobacteria, and viruses in 5 min and bacterial spores in 10 min. An endorsement of compatibility with endoscopes, accessories and processing equipment is required from both the solution/device manufacturer and the endoscope manufacturer. Other important considerations are stability, cost and safety from the user and environmental standpoints. (8) Cleaning and disinfection or sterilization should be undertaken by trained staff in a dedicated area, e.g., SSD or TSSU. A suitable training programme is described. (9) If endoscopes are processed by immersion in disinfectants, harmful residues must be removed by thorough rinsing. Sterile or bacteria free water is essential for rinsing all invasive endoscopes and accessories to prevent recontamination. (10) If an automated washer disinfector is used it must be effective, non-damaging, reliable, easy to use and its performance regularly monitored. (11) If used, washer disinfectors and other processing equipment should be disinfected on a regular basis, i.e., between patients or at the start of each session. This will prevent biofilm formation and recontamination of instruments during rinsing. Disinfection should include the water treatment system, if present. (12) To comply with the Medical Devices Directive, manufacturers are obliged to provide full details on how to decontaminate the reusable devices they supply. This should include details of compatibility with heat, pressure, moisture, processing chemicals and ultrasonics. (13) The Infection Control Team should always be involved in the formulation and implementation of decontamination policies. Wherever possible, the national good practice guidelines produced by the Medical Devices Agency and/or professional societies shoul PMID:10973743

  2. 46 CFR 38.10-1 - Valves, fittings, and accessories-TB/ALL.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 46 Shipping 1 2012-10-01 2012-10-01 false Valves, fittings, and accessories-TB/ALL. 38.10-1 Section 38.10-1 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY TANK VESSELS LIQUEFIED FLAMMABLE GASES Piping, Valves, Fittings, and Accessory Equipment § 38.10-1 Valves, fittings, and accessories—TB/ALL. (a) All valves, flanges, fittings,...

  3. 14 CFR 221.52 - Airport to airport application, accessorial services.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 14 Aeronautics and Space 4 2010-01-01 2010-01-01 false Airport to airport application, accessorial... Charges 221.52 Airport to airport application, accessorial services. Tariffs shall specify whether or not the fares therein include services in addition to airport-to-airport transportation....

  4. 21 CFR 876.5880 - Isolated kidney perfusion and transport system and accessories.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 21 Food and Drugs 8 2014-04-01 2014-04-01 false Isolated kidney perfusion and transport system and....5880 Isolated kidney perfusion and transport system and accessories. (a) Identification. An isolated kidney perfusion and transport system and accessories is a device that is used to support a donated or...

  5. 21 CFR 876.5880 - Isolated kidney perfusion and transport system and accessories.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 21 Food and Drugs 8 2013-04-01 2013-04-01 false Isolated kidney perfusion and transport system and....5880 Isolated kidney perfusion and transport system and accessories. (a) Identification. An isolated kidney perfusion and transport system and accessories is a device that is used to support a donated or...

  6. 77 FR 5420 - Airworthiness Directives; Aeronautical Accessories Inc. High Landing Gear Aft Crosstube Assembly

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-02-03

    ... FR 11034, February 26, 1979); 3. Will not affect intrastate aviation in Alaska to the extent that it... Accessories Inc. High Landing Gear Aft Crosstube Assembly AGENCY: Federal Aviation Administration (FAA), DOT... (AD) for the Aeronautical Accessories Inc. (AAI) High Landing Gear Aft Crosstube Assembly...

  7. 29 CFR 1919.28 - Unit proof tests-cranes and gear accessory thereto.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 29 Labor 7 2014-07-01 2014-07-01 false Unit proof tests-cranes and gear accessory thereto. 1919.28... Loads; Heat Treatment; Competent Persons 1919.28 Unit proof testscranes and gear accessory thereto... approval of the accredited person. (2) An additional test shall be conducted with partial load and...

  8. 29 CFR 1919.28 - Unit proof tests-cranes and gear accessory thereto.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 29 Labor 7 2012-07-01 2012-07-01 false Unit proof tests-cranes and gear accessory thereto. 1919.28... Loads; Heat Treatment; Competent Persons 1919.28 Unit proof testscranes and gear accessory thereto... approval of the accredited person. (2) An additional test shall be conducted with partial load and...

  9. 29 CFR 1919.28 - Unit proof tests-cranes and gear accessory thereto.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 29 Labor 7 2011-07-01 2011-07-01 false Unit proof tests-cranes and gear accessory thereto. 1919.28... Loads; Heat Treatment; Competent Persons 1919.28 Unit proof testscranes and gear accessory thereto... approval of the accredited person. (2) An additional test shall be conducted with partial load and...

  10. 21 CFR 888.3030 - Single/multiple component metallic bone fixation appliances and accessories.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 21 Food and Drugs 8 2012-04-01 2012-04-01 false Single/multiple component metallic bone fixation....3030 Single/multiple component metallic bone fixation appliances and accessories. (a) Identification. Single/multiple component metallic bone fixation appliances and accessories are devices intended to...

  11. 21 CFR 884.6190 - Assisted reproductive microscopes and microscope accessories.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 21 Food and Drugs 8 2011-04-01 2011-04-01 false Assisted reproductive microscopes and microscope... Devices § 884.6190 Assisted reproductive microscopes and microscope accessories. (a) Identification. Assisted reproduction microscopes and microscope accessories (excluding microscope stage warmers, which...

  12. 21 CFR 884.6190 - Assisted reproductive microscopes and microscope accessories.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 21 Food and Drugs 8 2010-04-01 2010-04-01 false Assisted reproductive microscopes and microscope... Devices § 884.6190 Assisted reproductive microscopes and microscope accessories. (a) Identification. Assisted reproduction microscopes and microscope accessories (excluding microscope stage warmers, which...

  13. 21 CFR 884.6190 - Assisted reproductive microscopes and microscope accessories.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 21 Food and Drugs 8 2012-04-01 2012-04-01 false Assisted reproductive microscopes and microscope... Devices § 884.6190 Assisted reproductive microscopes and microscope accessories. (a) Identification. Assisted reproduction microscopes and microscope accessories (excluding microscope stage warmers, which...

  14. 21 CFR 884.6190 - Assisted reproductive microscopes and microscope accessories.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 21 Food and Drugs 8 2014-04-01 2014-04-01 false Assisted reproductive microscopes and microscope... Devices § 884.6190 Assisted reproductive microscopes and microscope accessories. (a) Identification. Assisted reproduction microscopes and microscope accessories (excluding microscope stage warmers, which...

  15. 21 CFR 884.6190 - Assisted reproductive microscopes and microscope accessories.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 21 Food and Drugs 8 2013-04-01 2013-04-01 false Assisted reproductive microscopes and microscope... Devices § 884.6190 Assisted reproductive microscopes and microscope accessories. (a) Identification. Assisted reproduction microscopes and microscope accessories (excluding microscope stage warmers, which...

  16. 21 CFR 884.1300 - Uterotubal carbon dioxide insufflator and accessories.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 21 Food and Drugs 8 2014-04-01 2014-04-01 false Uterotubal carbon dioxide insufflator and... Gynecological Diagnostic Devices § 884.1300 Uterotubal carbon dioxide insufflator and accessories. (a) Identification. A uterotubal carbon dioxide insufflator and accessories is a device used to test the...

  17. 21 CFR 884.1300 - Uterotubal carbon dioxide insufflator and accessories.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 21 Food and Drugs 8 2013-04-01 2013-04-01 false Uterotubal carbon dioxide insufflator and... Gynecological Diagnostic Devices § 884.1300 Uterotubal carbon dioxide insufflator and accessories. (a) Identification. A uterotubal carbon dioxide insufflator and accessories is a device used to test the...

  18. 21 CFR 884.1300 - Uterotubal carbon dioxide insufflator and accessories.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 21 Food and Drugs 8 2011-04-01 2011-04-01 false Uterotubal carbon dioxide insufflator and... Gynecological Diagnostic Devices § 884.1300 Uterotubal carbon dioxide insufflator and accessories. (a) Identification. A uterotubal carbon dioxide insufflator and accessories is a device used to test the...

  19. 21 CFR 884.1300 - Uterotubal carbon dioxide insufflator and accessories.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 21 Food and Drugs 8 2012-04-01 2012-04-01 false Uterotubal carbon dioxide insufflator and... Gynecological Diagnostic Devices § 884.1300 Uterotubal carbon dioxide insufflator and accessories. (a) Identification. A uterotubal carbon dioxide insufflator and accessories is a device used to test the...

  20. Industrial Minerals

    ERIC Educational Resources Information Center

    Bradbury, James C.

    1978-01-01

    The past year is seen as not particularly good for industrial minerals and for industry in general. Environmental concerns continued to trouble the industry with unacceptable asbestos concentrations and chlorofluorocarbon effects on ozone. A halting U.S. economy also affected industrial progress. (MA)

  1. Health warning labelling practices on narghile (shisha, hookah) waterpipe tobacco products and related accessories

    PubMed Central

    Khalil, Joanna

    2010-01-01

    Background Waterpipe tobacco smoking prevalence is increasing around the globe despite current evidence that smoke emissions are toxic and contain carcinogenic compounds. Objective To evaluate current health warning labelling practices on waterpipe tobacco products and related accessories. Methods All waterpipe tobacco products, as well as waterpipe accessories, were purchased from Lebanon and a convenience sample was obtained from Dubai (United Arab Emirates), Palestine, Syria, Jordan, Bahrain, Canada, Germany and South Africa. Findings Of the total number of waterpipe tobacco products collected from Lebanon, the majority had textual health warning labels covering on average only 3.5% of total surface area of the package. Misleading descriptors were commonplace on waterpipe tobacco packages and related accessories. Conclusions There are no WHO FCTC compliant waterpipe-specific health warning labels on waterpipe tobacco products and related accessories. Introducing health warnings on waterpipe tobacco products and accessories will probably have worldwide public health benefits. PMID:20501497

  2. 26 CFR 48.4061(a)-4 - Parts or accessories sold on or in connection with chasis, bodies, etc.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 26 Internal Revenue 16 2013-04-01 2013-04-01 false Parts or accessories sold on or in connection... Parts or accessories sold on or in connection with chasis, bodies, etc. (a) In general. The tax attaches in respect of parts or accessories for articles specified in section 4061(a) sold on or in...

  3. 26 CFR 48.4061(a)-4 - Parts or accessories sold on or in connection with chasis, bodies, etc.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 26 Internal Revenue 16 2010-04-01 2010-04-01 true Parts or accessories sold on or in connection... Parts or accessories sold on or in connection with chasis, bodies, etc. (a) In general. The tax attaches in respect of parts or accessories for articles specified in section 4061(a) sold on or in...

  4. 26 CFR 48.4061(a)-4 - Parts or accessories sold on or in connection with chasis, bodies, etc.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 26 Internal Revenue 16 2012-04-01 2012-04-01 false Parts or accessories sold on or in connection... Parts or accessories sold on or in connection with chasis, bodies, etc. (a) In general. The tax attaches in respect of parts or accessories for articles specified in section 4061(a) sold on or in...

  5. 26 CFR 48.4061(a)-4 - Parts or accessories sold on or in connection with chasis, bodies, etc.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 26 Internal Revenue 16 2011-04-01 2011-04-01 false Parts or accessories sold on or in connection... Parts or accessories sold on or in connection with chasis, bodies, etc. (a) In general. The tax attaches in respect of parts or accessories for articles specified in section 4061(a) sold on or in...

  6. Silicone-based stoma accessories in clinical practice.

    PubMed

    Cronin, Elaine

    2016-03-10

    Advanced silicone technology has transformed the treatment of wounds and peri-wound skin. Recently, there has been interest in the use of silicone-based products in stoma care. Peristomal skin issues are a common problem, and can have a negative impact on the patient's quality of life, so helping the ostomate maintain good skin health is crucial. The author, a stoma care nurse, regularly sees 3-4 patients each week in her stoma care clinic with damaged or broken peristomal skin. This article explores the 'Trio' range of silicone-based accessories, discussing how these products compare with the traditional hydrocolloid, how they are applied and used. A series of case studies illustrates the circumstances in which these products may be applied. PMID:26973010

  7. An accessory skull suture mimicking a skull fracture.

    PubMed

    Wiedijk, J E F; Soerdjbalie-Maikoe, V; Maat, G J R; Maes, A; van Rijn, R R; de Boer, H H

    2016-03-01

    This paper describes an investigation of the sudden and unexpected death of a five-and-a-half-month-old boy. As in every Dutch case of sudden unexpected death in infancy (SUDI), a multidisciplinary diagnostic approach was used. This included post-mortem radiography, showing a linear discontinuity of the parietal bone. Originally this was interpreted as a skull fracture, but autopsy indicated no signs of mechanical trauma. Instead the defect was defined as a unilateral accessory suture of the parietal bone. The initial erroneous diagnosis had severe adverse consequences and thus every health care professional or forensic specialist dealing with paediatric mechanical traumas should be cautious of this rare anomaly. PMID:26860068

  8. New Scopes, New Accessories, New Stents for Interventional Endoscopic Ultrasound

    PubMed Central

    Chapman, Christopher G.; Siddiqui, Uzma D.

    2016-01-01

    Technological advances have rapidly expanded the therapeutic potential of endoscopic ultrasound (EUS). Innovations in stent technology; directed adjunctive therapy for pancreatic tumors, including radiofrequency ablation and fiducial marker placement; advanced imaging modalities, including needle-based confocal laser endomicroscopy; and new echoendoscopes, such as the forward-viewing linear echoendoscope, are emerging as safe and effective tools and devices for providing a broad range of treatments and therapies previously not thought possible. In this review, we summarize and discuss the new echoendoscopes, accessories, and stents for interventional EUS and highlight the recent literature on technical and therapeutic efficacy. The therapeutic role and indications for EUS are rapidly evolving well beyond its current limits as new EUS-specific designed tools are designed, and ultimately, should help achieve the goal of improving patient outcomes. PMID:26855923

  9. Evolutionary and developmental understanding of the spinal accessory nerve.

    PubMed

    Tada, Motoki N; Kuratani, Shigeru

    2015-01-01

    The vertebrate spinal accessory nerve (SAN) innervates the cucullaris muscle, the major muscle of the neck, and is recognized as a synapomorphy that defines living jawed vertebrates. Morphologically, the cucullaris muscle exists between the branchiomeric series of muscles innervated by special visceral efferent neurons and the rostral somitic muscles innervated by general somatic efferent neurons. The category to which the SAN belongs to both developmentally and evolutionarily has long been controversial. To clarify this, we assessed the innervation and cytoarchitecture of the spinal nerve plexus in the lamprey and reviewed studies of SAN in various species of vertebrates and their embryos. We then reconstructed an evolutionary sequence in which phylogenetic changes in developmental neuronal patterning led towards the gnathostome-specific SAN. We hypothesize that the SAN arose as part of a lamprey-like spinal nerve plexus that innervates the cyclostome-type infraoptic muscle, a candidate cucullaris precursor. PMID:26605049

  10. Mineral bioprocessing

    SciTech Connect

    Torma, A.E.

    1993-05-01

    In the last 25 years, the introduction of biotechnological methods in hydrometallurgy has created new opportunities and challenges for the mineral processing industry. This was especially true for the production of metal values from mining wastes and low-and-complex-grade mineral resources, which were considered economically not amenable for processing by conventional extraction methods. Using bio-assisted heap, dump and in-situ leaching technologies, copper and uranium extractions gained their first industrial applications. The precious metal industries were the next to adopt the bio-preoxidation technique in the extraction of gold from refractory sulfide-bearing ores and concentrates. A variety of other bioleaching opportunities exist for nickel, cobalt, cadmium and zinc sulfide leaching. Recently developed bioremediation methods and biosorption technologies have shown a good potential for industrial applications to remove trace heavy metal and radionuclide concentrations from contaminated soils, and mining and processing effluents.

  11. Dermoscopy of accessory nipples in authors’ own study

    PubMed Central

    Szymszal, Jan; Silny, Wojciech

    2014-01-01

    Introduction The accessory nipple (AN) is characterised by its network-like structures, which may suggest the diagnosis of a melanocytic lesion. The knowledge about additional dermoscopic features of AN may greatly minimise the risk of unnecessary surgical excisions. Aim To analyse and present different clinical and dermoscopic forms, in which the AN may appear. Material and methods Ninety AN with dermoscopic features were evaluated in the study, detected in 14 patients between the years 2008 and 2014. Results The most common dermoscopic features of the AN were central, scar-like areas (15/19) and peripheral network-like structures (12/19). A number of cleft-like appearances (8/19) and central network-like structures (7/19) had also been observed. Moreover, among the dermoscopic features, white cobblestone-like structures (7/19), a central round dimpling with a plug (6/19) and fisheye-like structures resembling comedo-like openings (9/19) have all also been noted. There is a statistical significance in the occurrence of white cobblestone-like structures with central network-like structures (Fisher's exact test p = 0.0449). The presence of peripheral network-like structures with the occurrence of central scar-like areas was statistically highly significant (p = 0.0091). The central round dimpling was never observed alongside any central network-like structures in any of the lesions (p = 0.0436). Conclusions Accessory nipples are most commonly characterised by the occurrence of a peripheral network-like structure accompanied by the presence of a scar-like area. PMID:25097482

  12. Geomorphic mapping of floodplain accessory channels with implications for floodplain morphodynamics

    NASA Astrophysics Data System (ADS)

    David, S. R.; Edmonds, D. A.; Letsinger, S. L.; Hajek, E. A.

    2013-12-01

    Floodplain morphology plays a key role in routing of floodwaters, sediment transport during floods, and the mechanics of the main channel. High-resolution topographic data (e.g., LiDAR) reveal a wealth of previously unappreciated geomorphic floodplain features. Using 1.5-m LiDAR data from Indiana, we found that the floodplains of Indiana rivers often contain a large number of secondary accessory channels. Accessory channels are subordinate to the main channel and are only active during flood stage, which is confirmed by Landsat images of inundated floodplains. Individual accessory channels are linear to sinuous, having widths ranging from 15 to 35% of the main channel, and lengths ranging from 500 to 3500 meters. On the White River, for example, the accessory channels account for ~25% of the floodplain area and these accessory channels are numerous and wide enough that during a ~10-year flood they conveyed all the flood discharge, leaving the inter-channel areas dry. To assess the pervasiveness of floodplain accessory channels, we inventoried all the floodplains of Indiana rivers having channel widths greater than 20 m. We constrained the mapping to the modern floodplains of each river, avoiding terraced floodplains related to the last glacial maximum. In total, we mapped 1100 km2 of floodplain; 55% of that area showed evidence for floodplain accessory channels. Moreover, there is a high concentration of floodplains exhibiting floodplain accessory channels in south-central Indiana occurring along the transition from glacial till into bedrock. Our preliminary hypothesis for the formation of floodplain accessory channels is that the channels form by connecting preexisting topographic lows, such as abandoned meander loops. Geomorphic mapping of a 7-km stretch of the floodplain along the White River reveals that the concave portions of accessory channels are associated with scroll-bar topography and abandoned meander loops from the main channel. In fact, 73% of the accessory channels annexed abandoned meander loops. Based on this, we conclude that accessory channels are associated with meandering rivers because frequent meander-loop cutoffs of the main channel create preexisting conduits that are then linked together during floods. These long coherent down-valley accessory channels have important implications for the morphodynamics of floodplains and flood-wave propagation.

  13. U, Th, Pb and REE abundances and Pb 207/Pb 206 ages of individual minerals in returned lunar material by ion microprobe mass analysis.

    NASA Technical Reports Server (NTRS)

    Andersen, C. A.; Hinthorne, J. R.

    1972-01-01

    Results of ion microprobe analyses of Apollo 11, 12 and 14 material, showing that U, Th, Pb and REE are concentrated in accessory minerals such as apatite, whitlockite, zircon, baddeleyite, zirkelite, and tranquillityite. Th/U ratios are found to vary by over a factor of 40 in these minerals. K, Ba, Rb and Sr have been localized in a K rich, U and Th poor glass phase that is commonly associated with the U and Th bearing accessory minerals. Li is observed to be fairly evenly distributed between the various accessory phases. The phosphates have been found to have REE abundance patterns (normalized to the chondrite abundances) that are fairly flat, while the Zr bearing minerals have patterns that rise steeply, by factors of ten or more, from La to Gd. All the accessory minerals have large negative Eu anomalies. Radiometric age dates (Pb 207/Pb 206) of the individual U and Th bearing minerals compare favorably with the Pb 207/Pb 206 age of the bulk rocks.

  14. Dynamic computed tomography findings of an accessory spleen in the pelvis: a case report.

    PubMed

    Ota, Hiroshi; Ojima, Yasutomo; Sumitani, Daisuke; Okajima, Masazumi

    2016-12-01

    We report the case of a 60-year-old man with an accessory spleen in the pelvis. He visited our outpatient clinic because of abdominal discomfort. Computed tomography (CT) showed an enhanced mass (40 mm in diameter) in the pelvis. Preoperative diagnosis was difficult even after magnetic resonance imaging and colonoscopy. The patient underwent surgery for suspicion of a gastrointestinal stromal tumor or malignant lymphoma of the rectum. Intraoperative findings showed a mass in the pelvis and a long cord-like tissue reaching the mass and arising from the great omentum; the mass was excised. Histopathologic examination indicated that the mass was splenic tissue, and feeding vessels were found in the cord-like tissue, which were determined to be derived from the left gastroepiploic artery and vein. Thus, we diagnosed it as an accessory spleen in the pelvis. An accessory spleen is not rare and can occur anywhere in the abdominal cavity. However, an accessory spleen in the pelvis is an infrequent finding, and only 9 other cases of an accessory spleen in the pelvis have been reported. Therefore, it is very difficult to make a correct diagnosis preoperatively. However, 7 of the 9 cases (77.8 %) of a pelvic accessory spleen had vascular pedicles from the great omentum or splenic hilum as feeding vessels; hence, determining the feeding blood vessels on dynamic CT may be useful for diagnosing an accessory spleen in the pelvis. Additionally, if the accessory spleen is symptomatic or has a vascular pedicle, surgeons should attempt to resect the accessory spleen in the pelvis using minimally invasive laparoscopy. PMID:26970956

  15. Vitamins and Minerals

    MedlinePLUS

    ... I Help a Friend Who Cuts? Vitamins and Minerals KidsHealth > For Teens > Vitamins and Minerals Print A ... of a good thing? What Are Vitamins and Minerals? Vitamins and minerals make people's bodies work properly. ...

  16. Determination of radon concentration in water using RAD7 with RAD H{sub 2}O accessories

    SciTech Connect

    Malik, M. F. I.; Rabaiee, N. A.; Jaafar, M. S.

    2015-04-24

    In the last decade, the radon issue has become one of the major problems of radiation protection. Radon exposure occurs when using water for showering, washing dishes, cooking and drinking water. RAD7 and Rad H20 accessories were used in order to measure radon concentration in water sample. In this study, four types of water were concerns which are reverse osmosis (drinking water), mineral water, tap water and well water. Reverse osmosis (drinking water) and mineral water were bought from the nearest supermarket while tap water and well water were taken from selected areas of Pulau Pinang and Kedah. Total 20 samples were taken with 5 samples for each type of water. The measured radon concentration ranged from 2.9±2.9 to 79.5±17 pCi/L, 2.9±2.9 to 67.8±16 pCi/L, 15.97±7 to 144.25±24 pCi/L and 374.89±37 to 6409.03±130 pCi/L in reverse osmosis (drinking water), mineral water, tap water and well water. Well water has the highest radon compared to others. It was due to their geological element such as granite. Results for all types of water are presented and compared with maximum contamination limit (MCL) recommended by United State Environmental Protection Agency (USEPA) which is 300pCi/L. Reverse osmosis water, mineral water and tap water were fall below MCL. However, well water was exceeded maximum level that was recommended. Thus, these findings were suggested that an action should be taken to reduce radon concentration level in well water as well as reduce a health risk towards the public.

  17. Allotigenic and allotigenic accessory trace element contents in different age soil of glaciolacustrine basins

    NASA Astrophysics Data System (ADS)

    Zinkut?, Rimant?; Radzevi?ius, Alfredas; Kazakauskas, Vaidotas

    2010-12-01

    The distribution of allotigenic elements (AE) (Li, B, Ga, Sc, Ni, Cr, Co, V, Rb) and allotigenic accessory elements (AAE) (Y, Yb, La, Ti, Zr, Nb) in sandy, sandy loamy or loamy-clayey soil of five glaciolacustrine basins was studied to recognise differences in total contents of these trace elements mainly as a result of the different duration of weathering and composition of parent material. Weathering in the Simnas-Balbieri\\vskis basin of the South Lithuanian phase was the longest, in the Venta, J?ra-eup? and Kaunas-Kaiiadorys basins of the Middle Lithuanian phase was shorter, and in the M?a basin of the North Lithuanian phase the shortest. The difference in the duration of weathering is well reflected in sandy soil; it explains most of the significant differences in the content of trace elements and indicates the tendency of a decrease of most AEs and an increase of most AAEs with soil age, while sandy loamy or loamy-clayey soils do not show any significant dependence on weathering duration; the tendencies of variation of most AEs as soil age increases, are opposite compared to sandy soil, and the variation of the contents of AAEs is less expressed, except an increase of Nb. This is predetermined by a more difficult infiltration through these types of soil. Most of the significant differences in AE contents in sandy loamy or loamy-clayey soil of different basins can be explained by the lithological influence of the prevailing type of surface glaciolacustrine sediments (clay or coarser sediments) and the mineralogical influence of the main minerals of surface glaciolacustrine clay (illite and kaolinite), which depend on the material brought by different glacier lobes.

  18. 21 CFR 878.4400 - Electrosurgical cutting and coagulation device and accessories.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... electrosurgical cutting and coagulation device and accessories is a device intended to remove tissue and control bleeding by use of high-frequency electrical current. (b) Classification. Class II....

  19. 21 CFR 878.4400 - Electrosurgical cutting and coagulation device and accessories.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... electrosurgical cutting and coagulation device and accessories is a device intended to remove tissue and control bleeding by use of high-frequency electrical current. (b) Classification. Class II....

  20. 21 CFR 878.4400 - Electrosurgical cutting and coagulation device and accessories.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... electrosurgical cutting and coagulation device and accessories is a device intended to remove tissue and control bleeding by use of high-frequency electrical current. (b) Classification. Class II....

  1. 21 CFR 878.4400 - Electrosurgical cutting and coagulation device and accessories.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... electrosurgical cutting and coagulation device and accessories is a device intended to remove tissue and control bleeding by use of high-frequency electrical current. (b) Classification. Class II....

  2. Interactions among SARS-CoV accessory proteins revealed by bimolecular fluorescence complementation assay

    PubMed Central

    Kong, Jianqiang; Shi, Yanwei; Wang, Zhifang; Pan, Yiting

    2015-01-01

    The accessory proteins (3a, 3b, 6, 7a, 7b, 8a, 8b, 9b and ORF14), predicted unknown proteins (PUPs) encoded by the genes, are considered to be unique to the severe acute respiratory syndrome coronavirus (SARS-CoV) genome. These proteins play important roles in various biological processes mediated by interactions with their partners. However, very little is known about the interactions among these accessory proteins. Here, a EYFP (enhanced yellow fluorescent protein) bimolecular fluorescence complementation (BiFC) assay was used to detect the interactions among accessory proteins. 33 out of 81 interactions were identified by BiFC, much more than that identified by the yeast two-hybrid (Y2H) system. This is the first report describing direct visualization of interactions among accessory proteins of SARS-CoV. These findings attest to the general applicability of the BiFC system for the verification of protein-protein interactions. PMID:26579480

  3. One nose, one brain: contribution of the main and accessory olfactory system to chemosensation.

    PubMed

    Mucignat-Caretta, Carla; Redaelli, Marco; Caretta, Antonio

    2012-01-01

    The accessory olfactory system is present in most tetrapods. It is involved in the perception of chemical stimuli, being implicated also in the detection of pheromones. However, it is sensitive also to some common odorant molecules, which have no clear implication in intraspecific chemical communication. The accessory olfactory system may complement the main olfactory system and may contribute different perceptual features to the construction of a unitary representation, which merges the different chemosensory qualities. Crosstalk between the main and accessory olfactory systems occurs at different levels of central processing, in brain areas where the inputs from the two systems converge. Interestingly, centrifugal projections from more caudal brain areas are deeply involved in modulating both main and accessory sensory processing. A high degree of interaction between the two systems may be conceived and partial overlapping appears to occur in many functions. Therefore, the central chemosensory projections merge inputs from different organs to obtain a complex chemosensory picture. PMID:23162438

  4. One nose, one brain: contribution of the main and accessory olfactory system to chemosensation

    PubMed Central

    Mucignat-Caretta, Carla; Redaelli, Marco; Caretta, Antonio

    2012-01-01

    The accessory olfactory system is present in most tetrapods. It is involved in the perception of chemical stimuli, being implicated also in the detection of pheromones. However, it is sensitive also to some common odorant molecules, which have no clear implication in intraspecific chemical communication. The accessory olfactory system may complement the main olfactory system and may contribute different perceptual features to the construction of a unitary representation, which merges the different chemosensory qualities. Crosstalk between the main and accessory olfactory systems occurs at different levels of central processing, in brain areas where the inputs from the two systems converge. Interestingly, centrifugal projections from more caudal brain areas are deeply involved in modulating both main and accessory sensory processing. A high degree of interaction between the two systems may be conceived and partial overlapping appears to occur in many functions. Therefore, the central chemosensory projections merge inputs from different organs to obtain a complex chemosensory picture. PMID:23162438

  5. Mineral revenues

    SciTech Connect

    Not Available

    1991-05-01

    GAO examined the effect that the Department of the Interiors March 1988 oil and gas product valuation regulations have had on royalties form Indian and federal onshore and offshore leases. During the development of the regulatory changes, the states and Indian tribes voiced concern that their share of royalties would drop because of the proposed revisions. The Minerals Management Service, however, believed that the regulations would be revenue neutral, with royalties staying about the same. Service reports show that from March 1988 to February 1990, overall royalties, after adjusting for volume and price difference, have neither consistently increased nor decreased. This paper concludes that the methodology used by the Service to analyze the effect of the revised revisions on royalties was reasonable and accounts for the two measurable factors-volume and price-that could be expected to affect royalties.

  6. Centrifugal telencephalic afferent connections to the main and accessory olfactory bulbs

    PubMed Central

    Mohedano-Moriano, Alicia; de la Rosa-Prieto, Carlos; Saiz-Sanchez, Daniel; Ubeda-Baon, Isabel; Pro-Sistiaga, Palma; de Moya-Pinilla, Miguel; Martinez-Marcos, Alino

    2012-01-01

    Parallel to the olfactory system, most mammals possess an accessory olfactory or vomeronasal system. The olfactory and vomeronasal epithelia project to the main and accessory olfactory bulbs, which in turn project to adjacent areas of the telencephalon, respectively. New data indicate that projections arising from the main and accessory olfactory bulbs partially converge in the rostral telencephalon and are non-overlapping at caudal telencephalic levels. Therefore, the basal telencephalon should be reclassified in olfactory, vomeronasal, and mixed areas. On the other hand, it has been demonstrated that virtually all olfactory- and vomeronasal-recipient structures send reciprocal projections to the main and accessory olfactory bulbs, respectively. Further, non-chemosensory recipient structures also projects centrifugally to the olfactory bulbs. These feed-back projections appear to be essential modulating processing of chemosensory information. The present work aims at characterizing centrifugal projections to the main and accessory olfactory bulbs arising from olfactory, vomeronasal, mixed, and non-chemosensory recipient telencephalic areas. This issue has been addressed by using tracer injections in the rat and mouse brain. Tracer injections were delivered into the main and accessory olfactory bulbs as well as in olfactory, vomeronasal, mixed, and non-chemosensory recipient telencephalic structures. The results confirm that olfactory- and vomeronasal-recipient structures project to the main and accessory olfactory bulbs, respectively. Interestingly, olfactory (e.g., piriform cortex), vomeronasal (e.g., posteromedial cortical amygdala), mixed (e.g., the anterior medial amygdaloid nucleus), and non-chemosensory-recipient (e.g., the nucleus of the diagonal band) structures project to the main and to the accessory olfactory bulbs thus providing the possibility of simultaneous modulation and interaction of both systems at different stages of chemosensory processing. PMID:22661931

  7. Iliorenal periscope graft to maintain blood flow to accessory renal artery

    PubMed Central

    Canyigit, Murat; Hidiroglu, Mete; Uguz, Emrah; Cetin, Huseyin

    2015-01-01

    Parallel endografts such as chimney and periscope are being increasingly used to maintain blood flow to visceral and supra-aortic branches in patients with different aortic disorders. We present a new technique, iliorenal periscope graft, in a patient with abdominal aortic aneurysm undergoing endovascular aortic repair. In this case, left accessory renal artery flows were provided by an iliorenal periscope graft that extends from the left accessory renal artery to the right common iliac artery in a retrograde fashion. PMID:25959546

  8. Cummins MD & HD Accessory Hybridization CRADA -Annual Report FY15

    SciTech Connect

    Deter, Dean D.

    2015-10-01

    There are many areas of MD and HD vehicles that can be improved by new technologies and optimized control strategies. Component optimization and idle reduction need to be addressed, this is best done by a two part approach that includes selecting the best component technology, and/or architecture, and optimized controls that are vehicle focused. While this is a common focus in the light duty industry it has been gaining momentum in the MD and HD market as the market gets more competitive and the regulations become more stringent. When looking into systems optimization and idle reduction technologies, affected vehicle systems must first be considered, and if possible included in the new architecture to get the most benefit out of these new capabilities. Typically, when looking into idle reduction or component optimization for MD/HD, the vehicle s accessories become a prime candidate for electrification or hybridization. While this has already been studied on light duty vehicles (especially on hybrids and electric vehicles) it has not made any head way or market penetration in most MD and HD applications. If hybrids and electric MD and HD vehicles begin to break into the market this would be a necessary step into the ability to make those vehicles successful by allowing for independent, optimized operation separate from the engine.

  9. Two speed accessory transmission with optional neutral mode

    SciTech Connect

    Sivalingam, R.

    1987-11-17

    An underdrive accessory transmission associated with an engine is described comprising: a planetary gear set comprising a sun gear having an integrally formed shaft planet gears positioned about and drivingly engaging the sun gear, a planet gear carrier, and a ring gear positioned about and drivingly engaging the planet gears, wherein the ring gear provides rotational input to the transmission from the engine; a fixed cover for the transmission; cone clutch slidably affixed on the shaft of the sun gear and being capable of axial movement along the shaft; means for sliding the cone clutch axially along the shaft of the sun gear; an output shaft, the planet gear carrier being affixed about the output shaft; and a one way clutch and support bearing being positioned between the sun gear and the output shaft. The clutch allows the output shaft to rotate only in the direction of engine rotation, wherein the cone clutch provides a direct drive from the engine to the output shaft when it is engaged with the ring gear, the cone clutch provides a neutral mode of operation when it is disengaged from both the ring gear and the transmission cover, and the cone clutch provides an underdrive to the output shaft when it is engaged with the cover.

  10. Accessory hardware for neuromuscular measurements during functional MRI experiments.

    PubMed

    Liu, Jing Z; Zhang, Luduan; Yao, Bing; Yue, Guang H

    2002-01-01

    Functional magnetic resonance imaging (fMRI) is increasingly being used for human sensorimotor function research. Few studies, however, have been able to acquire peripheral neuromuscular data (e.g. joint force and electromyograms [EMG]) online with fMRI measurements. The lack of muscle output information hinders interpretation of fMRI data and prevents investigators from designing more sophisticated experiments. We developed a data-acquisition system that can record force and EMG data simultaneously with fMRI signals. This system included three major components: a hydraulic, pressure transducer-based force measurement device, a well-shielded EMG-recording apparatus, and a visual feedback setup. The three components were integrated with a laptop computer equipped with data acquisition hardware and software. System evaluation experiments demonstrated that no significant mutual interference occurred between the MRI environment and the force-EMG data-acquisition system, i.e. the system can record relatively noise-free force and EMG signals while maintaining the quality of fMRI data. The system has enabled us to study human motor control function involving motor tasks such as handgrip and finger pinch that require precision control of force and EMG. This accessory equipment can facilitate fMRI investigations of human sensorimotor function. PMID:11755092

  11. Male Accessory Gland Infection: Relevance of Serum Total Testosterone Levels

    PubMed Central

    Condorelli, R. A.; Calogero, A. E.; Vicari, E.; Favilla, V.; Cimino, S.; Russo, G. I.; Morgia, G.; La Vignera, S.

    2014-01-01

    Aim of the present study was to evaluate the different ultrasound characterization of fertile symptomatic patients with MAGI (male accessory gland infection) according to different serum concentrations of total T (TT). We analyzed the ultrasound and hormonal data of 200 patients aged between 24.0 and 67.0 years. Patients were divided into six groups according to the sextile distribution of TT. Patients with serum concentrations of TT < 3.6 ng mL−1 had a higher mean duration of symptoms compared to the other examined groups. Patients with serum concentrations of TT > 6.6 ng mL−1 showed a frequency of ultrasound criteria suggestive for bilateral form of prostatitis and prostate-vesiculo-epididymitis and significantly lower compared to the other examined groups. At multivariate logistic regression analysis adjusted for age and BMI, TT was an independent predictive factor of prostatovesiculitis (OR = 0.818 [95% CI: 0.675–0.992]; P < 0.01) and prostate-vesiculo-epididymitis (OR = 0.714 [95% CI: 0.578–0.880]; P < 0.01), which represent the main forms of complicated MAGI. The results of this study suggest that male hypogonadism could be associated with a different ultrasound characterization of these patients. PMID:25276133

  12. Macaque accessory optic system: II. Connections with the pretectum

    SciTech Connect

    Baleydier, C.; Magnin, M.; Cooper, H.M. )

    1990-12-08

    Connections of the accessory optic system (AOS) with the pretectum are described in the macaque monkey. Injections of tritiated amino acids in the pretectum demonstrate a major contralateral projection to the dorsal (DTN), lateral (LTN), and medial (MTN) terminal nuclei of the AOS and a sparser projection to the ipsilateral LTN. Injections of retrograde tracers, Fast Blue (FB), or wheat germ agglutinin horseradish peroxidase (WGA-HRP) plus nonconjugated horseradish peroxidase (HRP) in the LTN show that the pretectal-LTN projection originates from two nuclei. The main source of pretectal efferents to the LTN is from the pretectal olivary nucleus (OPN) and is entirely contralateral. This projection, which appears unique to primates, originates from the large multipolar cells of the OPN. In addition to this projection, the nucleus of the optic tract (NOT) projects to the ipsilateral LTN, as in nonprimates. Injection of WGA-HRP in the pretectum shows a reciprocal predominantely ipsilateral projection from the LTN to the pretectum. Retinas were observed after injection of FB in the LTN. The retinal ganglion cells projecting to the AOS are mainly distributed near the fovea and in the nasal region of the contralateral eye, suggesting a nasotemporal pattern of decussation. The demonstration of a direct connection between LTN and OPN forces to a reconsideration of the functional role of the AOS. Previous descriptions of luminance responsive cells in the LTN support a possible participation of this nucleus in the control of the pupillary light reflex.

  13. Carbon and nitrogen mineralization are decoupled in organo-mineral fractions

    NASA Astrophysics Data System (ADS)

    Bimüller, Carolin; Mueller, Carsten W.; von Lützow, Margit; Kreyling, Olivia; Kölbl, Angelika; Haug, Stephan; Schloter, Michael; Kögel-Knabner, Ingrid

    2015-04-01

    To improve our comprehension how carbon and nitrogen mineralization are linked in soils, we used a controlled laboratory mineralization approach and compared carbon and nitrogen dynamics in the bulk soil and in soil fractions. Topsoil of a Rendzic Leptosol from a beech forest site near Tuttlingen, Germany, was fractionated into three particle size classes: sand (2000 to 20 µm), silt (20 to 2 µm), and clay (< 2 µm). Bulk soil and particle size fractions were incubated for 40 weeks allowing periodic destructive sampling. We monitored carbon and nitrogen mineralization dynamics, and assessed carbon respiration as well as nitrogen mineralization and microbial biomass carbon and nitrogen contents. Soil organic matter in the incubated fractions was considered by a subsequent density fractionation. The chemical composition of selected samples was qualitatively evaluated by 13C-NMR spectroscopy. When summing up the mineralization rates of the single fractions, the values for respired carbon equaled the bulk soil, whereas the mathematical recombination of mineral nitrogen in all fractions was significantly less than in bulk soil. Hence, carbon mineralization was not affected by the damage of the aggregated soil structure via fractionation, whereas nitrogen mineralization was reduced. Fractionation increased the surface area providing accessory mineral surfaces, which allowed new binding of especially nitrogen-rich compounds, besides ammonium fixation via cation exchange. Density fractionation revealed that organic matter in the sand fraction contained mainly particulate organic matter present as light material comprising partly decomposed plant remnants. The organic matter in the clay fraction was mostly adsorbed on mineral surfaces. Organic matter in the sand and in the clay fraction was dominated by O/N-alkyl C indicating low recalcitrance, but the C/N ratio of organic matter narrowed with decreasing particle size. These results also imply that the C/N ratio as well as the alkyl C to O/N-alkyl C ratio are not suitable to draw conclusions regarding biological decomposability of plant residues when characterizing soil fractions where organic matter is mainly stabilized by spatial inaccessibility and by organo-mineral interactions. The specific interactions of both carbon and nitrogen containing components with the mineral matrix strongly modulate the mineralization dynamics, leading to a decoupling of these processes.

  14. MR Imaging Findings of Painful Type II Accessory Navicular Bone: Correlation with Surgical and Pathologic Studies

    PubMed Central

    Lee, Kyung Tai; Kang, Heung Sik; Kim, Eun Kyung

    2004-01-01

    Objective To evaluate the MR imaging findings of painful type II accessory navicular bone and to correlate these with the surgical and pathologic findings. Materials and Methods The MR images of 17 patients with medial foot pain and surgically proven type II accessory navicular abnormalities were reviewed. The changes of signal intensity in the accessory navicular, synchondrosis and adjacent soft tissue, the presence of synchondrosis widening, and posterior tibial tendon (PTT) pathology on the T1-weighted and fat-suppressed T2-weighted images were analyzed. The MR imaging findings were compared with the surgical and pathologic findings. Results The fat-suppressed T2-weighted images showed high signal intensity in the accessory navicular bones and synchondroses in all patients, and in the soft tissue in 11 (64.7%) of the 17 patients, as well as synchondrosis widening in 3 (17.6%) of the 17 patients. The MR images showed tendon pathology in 12 (75%) of the 16 patients with PTT dysfunction at surgery. The pathologic findings of 16 surgical specimens included areas of osteonecrosis with granulomatous inflammation, fibrosis and destruction of the cartilage cap. Conclusion The MR imaging findings of painful type II accessory navicular bone are a persistent edema pattern in the accessory navicular bone and within the synchondrosis, indicating osteonecrosis, inflammation and destruction of the cartilage cap. Posterior tibial tendon dysfunction was clinically evident in most patients. PMID:15637478

  15. Postsplenectomy recurrence of idiopathic thrombocitopenic purpura: role of laparoscopic splenectomy in the treatment of accessory spleen

    PubMed Central

    LEO, C.A.; PRAVISANI, R.; BIDINOST, S.; BACCARANI, U.; BRESADOLA, V.; RISALITI, A.; TERROSU, G.

    2015-01-01

    Aim Idiopatic thrombocytopenic purpura (ITP) is the most common indication for splenectomy. The failure rate of surgery is about 8% and the failure rate after splenectomy is approximately 28% for all patients. When the presence of an accessory spleen is diagnosed, splenectomy is recommended. Laparoscopic approach is considered the first choice. Patients and methods At our Department, between July and November 2011 two patients underwent laparoscopic accessory splenectomy for recurrence of ITP. Both patients had a previously laparoscopic splenectomy. Preoperative Magnetic Resonance (MR) was performed in both the cases revealing the presence of an accessory spleen. Results The operative time was 105 and 100 minutes respectively. No perioperative complications occured. Hospital stay was four days in both cases. The first patient had a disease free period of two months; the second one of one month. Both patients restarted immunosuppressive therapy. Conclusions The relapse of thrombocytopenia post-splenectomy can be associated with the presence of an accessory spleen. The laparoscopic accessory splenectomy should be considered the first choice approach. Surgical accessory splenectomy allows a transitory remission of the disease. PMID:26712069

  16. Regulation of the epithelial sodium channel by accessory proteins.

    PubMed Central

    Gormley, Kelly; Dong, Yanbin; Sagnella, Giuseppe A

    2003-01-01

    The epithelial sodium channel (ENaC) is of fundamental importance in the control of sodium fluxes in epithelial cells. Modulation of sodium reabsorption through the distal nephron ENaC is an important component in the overall control of sodium balance, blood volume and thereby of blood pressure. This is clearly demonstrated by rare genetic disorders of sodium-channel activity (Liddle's syndrome and pseudohypoaldosteronism type 1), associated with contrasting effects on blood pressure. The mineralocorticoid aldosterone is a well-established modulator of sodium-channel activity. Considerable insight has now been gained into the intracellular signalling pathways linking aldosterone-mediated changes in gene transcription with changes in ion transport. Activating pathways include aldosterone-induced proteins and especially the serum- and glucocorticoid-inducible kinase (SGK) and the small G-protein, K-Ras 2A. Targeting of the ENaC for endocytosis and degradation is now emerging as a major mechanism for the down-regulation of channel activity. Several proteins acting in concert are an intrinsic part of this process but Nedd4 (neural precursor cell expressed developmentally down-regulated 4) is of central importance. Other mechanisms known to interact with ENaC and affect sodium transport include channel-activating protease 1 (CAP-1), a membrane-anchored protein, and the cystic fibrosis transmembrane regulator. The implications of research on accessory factors controlling ENaC activity are wide-ranging. Understanding cellular mechanisms controlling ENaC activity may provide a more detailed insight not only of ion-channel abnormalities in cystic fibrosis but also of the link between abnormal renal sodium transport and essential hypertension. PMID:12460120

  17. Regulation of the epithelial sodium channel by accessory proteins.

    PubMed

    Gormley, Kelly; Dong, Yanbin; Sagnella, Giuseppe A

    2003-04-01

    The epithelial sodium channel (ENaC) is of fundamental importance in the control of sodium fluxes in epithelial cells. Modulation of sodium reabsorption through the distal nephron ENaC is an important component in the overall control of sodium balance, blood volume and thereby of blood pressure. This is clearly demonstrated by rare genetic disorders of sodium-channel activity (Liddle's syndrome and pseudohypoaldosteronism type 1), associated with contrasting effects on blood pressure. The mineralocorticoid aldosterone is a well-established modulator of sodium-channel activity. Considerable insight has now been gained into the intracellular signalling pathways linking aldosterone-mediated changes in gene transcription with changes in ion transport. Activating pathways include aldosterone-induced proteins and especially the serum- and glucocorticoid-inducible kinase (SGK) and the small G-protein, K-Ras 2A. Targeting of the ENaC for endocytosis and degradation is now emerging as a major mechanism for the down-regulation of channel activity. Several proteins acting in concert are an intrinsic part of this process but Nedd4 (neural precursor cell expressed developmentally down-regulated 4) is of central importance. Other mechanisms known to interact with ENaC and affect sodium transport include channel-activating protease 1 (CAP-1), a membrane-anchored protein, and the cystic fibrosis transmembrane regulator. The implications of research on accessory factors controlling ENaC activity are wide-ranging. Understanding cellular mechanisms controlling ENaC activity may provide a more detailed insight not only of ion-channel abnormalities in cystic fibrosis but also of the link between abnormal renal sodium transport and essential hypertension. PMID:12460120

  18. Minerals yearbook vol. I: metals and minerals

    USGS Publications Warehouse

    U.S. Geological Survey

    0000-01-01

    This volume, covering metals and minerals, contains chapters on approximately 90 commodities. In addition, this volume has chapters on mining and quarrying trends and on statistical surveying methods used by Minerals Information, plus a statistical summary.

  19. Male reproductive system structure and accessory glands ultrastructure of two species of Triatoma (Hemiptera, Reduviidae, Triatominae).

    PubMed

    Freitas, S P C; Gonalves, T C M; Serro, J E; Costa, J; Santos-Mallet, J R

    2010-07-01

    Morphological studies in male reproductive system of insect, and accessory glands functions, can contribute to the knowledge of reproductive aspects in Triatominae. The present study aims to describe the structure of male reproductive system under scanning electron microscopy, and the ultrastructure of accessory glands during the process of maturation, in T. brasiliensis and T. melanica of different ages. These system consist of two testis, two vas deferens, two seminal vesicles, four pair of accessory glands and one ejaculatory duct. The four mesodermal male accessory glands of T. melanica and T. brasiliensis, present secretion storage in the first days of adult life in starved males. During the maturation process of male accessory glands of T. brasiliensis and T. melanica, granules with different sizes, shapes and electron density were seen. In T. melanica small vacuoles are released into the gland lumen in one-day-old males, however, after three and five days few granules are found in the cell cytoplasm. The secretory granules in T. brasiliensis increase in size and amount, in the five days old adult. The secretory pathway in the male accessory glands of the two species seems to be merocrine and apocrine suggesting that different substances are being produced at different times. The cell microvilli in T. brasiliensis are longer and narrower, these can be absent in some regions of the cell surface of T. melanica. Maturation of male accessory glands in the triatomine species studied occurred without adult blood meal. Its function can led to new insights for the comprehension of reproductive aspects in Triatominae. PMID:20207152

  20. Mineral spirits poisoning

    MedlinePLUS

    Mineral spirits are liquid chemicals used to thin paint and as a degreaser. Mineral spirits poisoning occurs ... Mineral spirits ( Stoddard solvent ) Some paints Some floor and ... fluids White spirits Note: This list may not be all-inclusive.

  1. New Minerals and Science.

    ERIC Educational Resources Information Center

    Birch, William D.

    1997-01-01

    Defines geodiversity, compares it to biodiversity, and discusses the mineral classification system. Charts the discovery of new minerals in Australia over time and focuses on uses of these minerals in technological advances. (DDR)

  2. Rocks and Minerals.

    ERIC Educational Resources Information Center

    Naturescope, 1987

    1987-01-01

    Provides background information on rocks and minerals, including the unique characteristics of each. Teaching activities on rock-hunting and identification, mineral configurations, mystery minerals, and growing crystals are provided. Reproducible worksheets are included for two of the activities. (TW)

  3. Permanent junctional reciprocating tachycardia in a patient with an atypically located accessory pathway in the left lateral mitral annulus.

    PubMed

    Rodríguez-Mañero, Moisés; Fernández-López, Xesús A; González-Melchor, Laila; García-Seara, Javier; Martínez-Sande, Jose Luis; González-Juanatey, José Ramón

    2016-01-01

    Permanent junctional reciprocating tachycardia (PJRT) is an uncommon form of atrioventricular reentrant tachycardia due to an accessory pathway characterized by slow and decremental retrograde conduction. The majority of accessory pathways in PJRT are located in the posteroseptal zone. Few cases of atypical location have been described. We report a case of PJRT in a 72-year-old woman in whom the accessory pathway was located in the left lateral region and treated by radiofrequency catheter ablation. PMID:26749575

  4. Cell membrane is a major locus for ultraviolet B-induced alterations in accessory cells.

    PubMed Central

    Krutmann, J; Khan, I U; Wallis, R S; Zhang, F; Rich, E A; Ellner, J J; Elmets, C A

    1990-01-01

    In vitro ultraviolet B (UVB) irradiation of human blood monocytes inhibits their accessory cell function for antigen- and mitogen-induced T cell responses. These studies were designed to characterize the nature of the UVB-induced defect in human monocyte accessory cell function. Irradiated monocytes were deficient in their ability to serve as accessory cells for OKT3-induced T cell activation. In vitro exposure of monocytes to 100 J/m2 UVB completely inhibited the T cell proliferative response (51502 cpm, non-UVB-irradiated; 302 cpm, UVB-irradiated). Analysis of the accessory signals altered by UVB indicated that irradiated monocytes were incapable of binding to OKT3 molecules attached to the CD3 antigen on T cells. Provision of an alternative mechanism for binding of OKT3 molecules by attaching anti-mouse IgG to the bottom of microtiter wells completely restored accessory cell function. Further characterization of the defect demonstrated that UVB radiation did not deplete p72 Fc receptors from the surface of irradiated monocytes. However, UVB exposure did produce a dose-dependent decrease in monocyte membrane expression of ICAM-1. It is proposed that UVB radiation leads to changes within the cell membrane that inhibit the ability of monocytes to express selected molecules necessary for binding of T cells. Images PMID:1970582

  5. Studies on the accessory requirement for T lymphocyte activation by concanavalin A.

    PubMed Central

    Gallagher, R B; Whelan, A; Feighery, C

    1986-01-01

    In this study we have examined the interactions between accessory cells (AC) and T cells in response to Con A. Highly purified peripheral blood T cells and AC exposed to a variety of treatments were used. We found that untreated AC provided optimal help for T cell proliferation and this was not mediated by soluble factors since whole cells could not be replaced with supernatants from activated AC. Furthermore, cycloheximide-treated AC were able to supply the accessory signal although unable to elaborate soluble activation factors. To find out more about the accessory signal, we examined the ability of monocytes mildly fixed with glutaraldehyde to supply help. These cells were completely unable to perform as AC, although they were viable and had unaltered surface antigen expression. They could not secrete activation factors, but this alone could not explain their inability to supply help because this function was not restored with the addition of soluble activation factors. This indicated that AC-T cell contact was of prime importance to accessory function. To investigate the possibility that AC work by cross-linking structures on the lymphocyte surface, we attempted to substitute for the soluble Con A plus AC with Con A bound to the surface of erythrocytes. Comparable stimulation was observed, suggesting that the cross-linking of Con A-bound structures on the lymphocyte surface generates the accessory signal. PMID:3100115

  6. Distribution of Neuron Cell Bodies in the Intraspinal Portion of the Spinal Accessory Nerve in Humans.

    PubMed

    Boehm, Karl E; Kondrashov, Peter

    2016-01-01

    The spinal accessory nerve is often identified as a purely motor nerve innervating the trapezius and sternocleidomastoid muscles. Although it may contain proprioceptive neurons found in cervical spinal levels C2-C4, limited research has focused on the histology of the spinal accessory nerve. The objective of the present study was to examine the spinal accessory nerve to determine if there are neuronal cell bodies within the spinal accessory nerve in humans. Cervical spinal cords were dissected from eight cadavers that had previously been used for dissection in other body regions. The segmental rootlets were removed to quantify the neuron cell bodies present at each spinal level. Samples were embedded in paraffin; sectioned; stained with hematoxylin and eosin; and examined using a microscope at 4×, 10×, and 40× magnification. Digital photography was used to image the samples. Neuronal cell bodies were found in 100% of the specimens examined, with non-grossly visible ganglia found at spinal levels C1-C4. The C1 spinal level of the spinal accessory nerve had the highest number of neuron cell bodies. Anat Rec, 299:98-102, 2016. © 2015 Wiley Periodicals, Inc. PMID:26474532

  7. Radiofrequency catheter ablation of accessory atrioventricular pathways: primary failure and recurrence of conduction.

    PubMed Central

    Xie, B.; Heald, S. C.; Camm, A. J.; Rowland, E.; Ward, D. E.

    1997-01-01

    OBJECTIVE: To identify possible factors associated with primary failure of radiofrequency ablation of accessory pathways or recurrence of accessory pathway conduction. PATIENTS AND METHODS: Radiofrequency ablation of accessory pathways failed in 25 of 243 patients, and recurrence of accessory pathway conduction occurred in an additional 13 patients. Factors possibly related to primary failure and recurrence were analysed. RESULTS: Primary failure and recurrence were less frequent in patients with left sided pathways (7% v 19%; 4% v 24%; P = 0.04). The factors that might relate to primary failure included an unstable catheter position (seven patients), a possible epicardial pathway (six patients), or misdiagnosis of accessory pathway location (two patients). The major factors for recurrence included the stability of the local atrial electrogram < or = 0.5 together with the stability of the local ventricular electrogram < or = 0.8, and prolonged time to pathway conduction block > or = 12 seconds). Thirty one patients underwent repeat ablation which was successful in 28. CONCLUSIONS: Primary failure and recurrence were more frequent in patients with right sided pathways. An unstable catheter position and a possible epicardial pathway location are the main contributing factors for primary failure, while unstable local electrograms and prolonged time to block are independent predictors for recurrence. PMID:9155618

  8. Structure and diversity in mammalian accessory olfactory bulb.

    PubMed

    Meisami, E; Bhatnagar, K P

    1998-12-15

    The accessory olfactory bulb (AOB) is the first neural integrative center for the olfactory-like vomeronasal sensory system. In this article, we first briefly present an overview of vomeronasal system organization and review the history of the discovery of mammalian AOB. Next, we briefly review the evolution of the vomeronasal system in vertebrates, in particular the reptiles. Following these introductory aspects, the structure of the rodent AOB, as typical of the well-developed mammalian AOB, is presented, detailing laminar organization and cell types as well as aspects of the homology with the main olfactory bulb. Then, the evolutionary origin and diversity of the AOB in mammalian orders and species is discussed, describing structural, phylogenetic, and species-specific variation in the AOB location, shape, and size and morphologic differentiation and development. The AOB is believed to be absent in fishes but present in terrestrial tetrapods including amphibians; among the reptiles AOB is absent in crocodiles, present in turtles, snakes, and some lizards where it may be as large or larger than the main bulb. The AOB is absent in bird and in the aquatic mammals (whales, porpoises, manatees). Among other mammals, AOB is present in the monotremes and marsupials, edentates, and in the majority of the placental mammals like carnivores, herbivores, as well as rodents and lagomorphs. Most bat species do not have an AOB and among those where one is found, it shows marked variation in size and morphologic development. Among insectivores and primates, AOB shows marked variation in occurrence, size, and morphologic development. It is small in shrews and moles, large in hedgehogs and prosimians; AOB continues to persist in New World monkeys but is not found in the adults of the higher primates such as the Old World monkeys, apes, and humans. In many species where AOB is absent in the adult, it often develops in the embryo and fetus but regresses in later stages of development. Finally, new areas in vomeronasal system research such as the diversity of receptor molecules and the regional variation in receptor neuron type as well as in the output neurons of the AOB and their projection pathways are briefly discussed. In view of the pronounced diversity of size, morphologic differentiation, and phylogenetic development, the need to explore new functions for the vomeronasal system in areas other than sexual and reproductive behaviors is emphasized. PMID:9880163

  9. Retroperitoneal Accessory Spleen Presented As Metastatic Suprarenal Tumour- A Diagnostic Dilemma

    PubMed Central

    Porwal, Rekha; Jain, Pritesh

    2015-01-01

    Accessory spleen may be formed during defective embryonic development. The retroperitoneal accessory spleen is a rare clinical entity and metastasis of renal carcinoma into this entity is extremely rare. We are presenting a case of a 50-year-old male patient who was admitted with complaints of left lower abdominal lump and pain. The computed tomography revealed a 74 cm mass at upper pole of left kidney. To rule out malignancy, we planned for surgical exploration. Suprarenal mass was densely adherent to left kidney so left nephouroureterectomy with suprarenal mass was performed. On histopathology examination left kidney showed transitional cell carcinoma with metastasis into suprarenal mass that was found to be an accessory spleen. Diagnosis was made retrospectively by histopathological observation. So this case highlights the difficulty in differentiation of these masses from malignant adrenal tumours. PMID:26266168

  10. Accessory Central Cusp in the Maxillary Second Primary Molars: A Rare Entity among the Rare

    PubMed Central

    Das, Monalisa

    2014-01-01

    ABSTRACT% Central accessory cusp in primary molars is an extremely rare condition which is due to abnormal proliferation and folding of inner enamel epithelium during morphodifferentiation stage of tooth development. The extension of the pulp in the cuspal area is often the reason for early involvement of pulp by the caries process. Therefore, early diagnosis and treatment planning is necessary to maintain the integrity of primary dental arch. This article reports such a case of central accessory cusps involving maxillary second primary molars. How to cite this article: Chandra B, Das M. Accessory Central Cusp in the Maxillary Second Primary Molars: A Rare Entity among the Rare. Int J Clin Pediatr Dent 2014;7(3):202-205. PMID:25709302

  11. An unusual case of retroperitoneal accessory spleen with vascular supply directly from the aorta.

    PubMed

    Souparis, A; Papaziogas, B; Alexandrakis, A; Koutelidakis, J; Paraskevas, G; Papaziogas, T

    2002-08-01

    We report on a case of a retroperitoneal accessory spleen with vascular supply directly from the aorta. A 47-year old woman presented with a six-month history of epigastric pain, intermittent nausea and vomiting. The CT scan of the abdomen revealed the presence of a retroperitoneal tumor between the spleen, left kidney and pancreas. The MR-tomography confirmed the presence of a solid tumor, with vascular supply directly from the aorta. The exploratory laparotomy showed the presence of a well-shaped accessory spleen, which was confirmed by the histological examination of the specimen. The surgeon should be aware of the possible existence of accessory spleens for the differential diagnosis of retroperitoneal tumors. PMID:12145585

  12. Peripheral targets of centrally located putative accessory neurons of MRO in the isopod Ligia exotica.

    PubMed

    Hama, Noriyuki; Okada, Yoshinori; Pollk, Edit; Molnr, Lszl; Niida, Akiyoshi

    2003-08-01

    The three centrally located putative accessory neurons of the muscle receptor organ (MRO) of the isopod Ligia exotica were identified to the third segmental nerve (N3) of the thoracic ganglion by backfilling with Lucifer Yellow. These neurons were then studied intracellularly and extracellularly to determine whether they suppressed the stretch-activated responses of thoracic stretch receptors. Intracellular injection of depolarizing currents into these three putative accessory neurons revealed that only neuron #3 had an inhibitory effect, suggesting that it is an inhibitory accessory neuron related to thoracic stretch receptors. We searched for the peripheral targets of neurons #1 and #2 by intracellular filling with Lucifer Yellow or by recording of junctional potentials in extensor muscles, and show that they are motor neurons that innervate the deep extensor and superficial extensor muscles, respectively. PMID:12819268

  13. Steroidogenesis by testis and accessory glands of the Lusitanian toadfish, Halobatrachus didactylus, during reproductive season.

    PubMed

    Modesto, Teresa; Freitas, Ana M M S; Canario, Adelino V M

    2015-11-01

    In teleost fish sex steroids are essential for gonadal function and have marked effects in reproductive and agonistic behavior and in the expression of secondary sexual characteristics. The Lusitanian toadfish, Halobatrachus didactylus, has two male morphotypes: type I males are territorial nest-holders and have large accessory glands while type II males are smaller, have a relatively large testis and small accessory glands. In the present study, the steroidogenic activity of the testis and accessory testicular glands of the Lusitanian toadfish were examined in vitro as well as their presence in urine. The testis of type I males produced 11-ketotestosterone (11KT) and 11?-hydroxy-4-androstene-3,17-dione (11?A) from tritiated 17-hydroxyprogesterone, while those of type II males produced testosterone (T) and 11?,17?-dihydroxy-4-andosten-3-one (11?T), but not 11KT. Additionally, the testis and accessory glands of both morphs produced mostly 5?,3?-reduced and 17,20?-hydroxylated metabolites. Type I, but not of type II, males synthesised 5?-reduced androgens in their accessory glands. The presence of 11?A exclusively in the urine of type I males during reproductive season suggests an association with maintenance of secondary sexual characteristics and behavior in this morph. The urine of both types of males contained two 5?-androstane and 5?-pregnane glucuronides. Among the latter steroids, those that are 17,21-dihydroxylated are potentially metabolites from cortisol and were found only in type I males during the spawning season. The diversity of metabolites produced by the testis and accessory glands and the presence of some in urine is suggestive of a potential role in chemical communication and reproductive behavior. PMID:26435361

  14. Ablation of an atriofascicular accessory pathway with a zero-fluoroscopy procedure

    PubMed Central

    Proietti, Riccardo; Abadir, Sylvia; Bernier, Martin L.; Essebag, Vidal

    2015-01-01

    A 16-year-old patient with recurrent palpitations and documented left bundle branch block superior axis wide complex tachycardia underwent an electrophysiological study and ablation with a zero-fluoroscopy procedure. The electrophysiological study showed a decremental antegrade conducting atriofascicular pathway. Three-dimensional CARTO-guided mapping of the tricuspid annulus in sinus rhythm was performed, and a distinct signal corresponding to the accessory pathway potential of the atriofascicular pathway was found in the posterolateral region. By using an SR0 sheath and a 4-mm-tip catheter, radiofrequency application was delivered at this point on the annulus and successfully eliminated conduction through the accessory pathway. PMID:26550092

  15. Possible implications of an accessory abductor digiti minimi muscle: a case report

    PubMed Central

    2007-01-01

    Background Accessory ADM was first reported in 1868 although muscular, vascular and nervous variations of the hypothenar eminence are rare, contrary to anomalous muscles in the wrist which are relatively common. Case presentation This case report presents a bilateral variation of an accessory abductor digiti minimi muscle in a male specimen. Ulnar artery and ulnar nerves were taken into account regarding their position and trajectory related to this variation. Conclusion Muscle size may be an important factor in considering whether a variation is able to produce neurovascular compression and clinical implications. PMID:18053190

  16. Tissue-specific antigens and autoantigens in the early developing rabbit male repoductive accessory glands.

    PubMed

    Vottero-Cima, E; Vides, M A; Shulman, S; Yantorno, C

    1975-01-01

    A comparative study was undertaken dealing with the postnatal development of rabbit male accessory glands specific macromolecules with and without autoantigenic properties. The two types of macromolecules were investigated in male accessory glands from rabbits of different ages, fron newborn up to six months old. The results obtained by passive hemagglutination, inhibition of hemagglutination and immunodiffusion tests, show that both types of macromolecules rise to a sufficient amount to be detected at approximately 3 months of age. The possible mechanisms explaining the autoantigenicity or the lack of this property in the macromolecules under study are discussed. PMID:58577

  17. Optical diffuse reflectance accessory for measurements of skin tissue by near-infrared spectroscopy

    NASA Astrophysics Data System (ADS)

    Marbach, R.; Heise, H. M.

    1995-02-01

    An optimized accessory for measuring the diffuse reflectance spectra of human skin tissue in the near-infrared spectral range is presented. The device includes an on-axis ellipsoidal collecting mirror with efficient illumination optics for small sampling areas of bulky body specimens. The optical design is supported by the results of a Monte Carlo simulation study of the reflectance characteristics of skin tissue. Because the results evolved from efforts to measure blood glucose noninvasively, the main emphasis is placed on the long-wavelength near-infrared range where sufficient penetration depth for radiation into tissue is still available. The accessory is applied for in vivo diffuse reflectance measurements.

  18. A case of epidermoid cyst in an intrapancreatic accessory spleen mimicking pancreas neoplasms: MRI with DWI.

    PubMed

    Kwak, Min Kyu; Lee, Nam Kyung; Kim, Suk; Han, Ga Jin; Seo, Hyung Il; Park, Do Youn; Lee, So Jeong; Kim, Tae Un

    2016-01-01

    We report on a rare case of an epidermoid cyst in an intrapancreatic accessory spleen (ECIAS) that presented as a cystic lesion in the tail of the pancreas, in a 21-year-old woman. ECIAS is very rare; thus, accurate diagnosis before surgery is difficult. When a wall within the lesion presents with similar imaging features to accessory splenic tissues on magnetic resonance imaging with diffusion-weighted imaging, ECIAS should be considered in the differential diagnosis of cystic lesions in the tail of the pancreas. PMID:26422768

  19. Regulation of the epithelial sodium channel (ENaC) by accessory proteins.

    PubMed

    Rotin, D

    2000-09-01

    The epithelial sodium channel (ENaC) plays a key role in the regulation of fluid absorption in the kidney, lung, colon and exocrine glands, and in the regulation of blood pressure. Abnormal functioning of ENaC is associated with several human diseases, including pseudohypoaldosteronism type I, Liddle's syndrome, pulmonary edema, and cystic fibrosis. ENaC is regulated by several hormones, ions and accessory proteins. This review focuses on the regulation of ENaC by recently described accessory proteins, mainly Nedd4, syntaxin 1A, CFTR, sgk, K-Ras2A and Cap-1. PMID:10990373

  20. 75 FR 41523 - Paris Accessories, Inc., Including On-Site Leased Workers From Job Connections, New Smithville...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-07-16

    ... on May 27, 2010. The Notice was published in the Federal Register on June 16, 2010 (75 FR 34180). The... Employment and Training Administration Paris Accessories, Inc., Including On-Site Leased Workers From Job Connections, New Smithville, PA; Paris Accessories, Inc., Allentown, PA; Amended Certification...

  1. 30 CFR 75.1106-5 - Maintenance and tests of liquefied and nonliquefied compressed gas cylinders; accessories and...

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... MANDATORY SAFETY STANDARDS-UNDERGROUND COAL MINES Fire Protection § 75.1106-5 Maintenance and tests of liquefied and nonliquefied compressed gas cylinders; accessories and equipment; requirements. (a) Hose lines... nonliquefied compressed gas cylinders; accessories and equipment; requirements. 75.1106-5 Section...

  2. 30 CFR 75.1106-5 - Maintenance and tests of liquefied and nonliquefied compressed gas cylinders; accessories and...

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... MANDATORY SAFETY STANDARDS-UNDERGROUND COAL MINES Fire Protection § 75.1106-5 Maintenance and tests of liquefied and nonliquefied compressed gas cylinders; accessories and equipment; requirements. (a) Hose lines... nonliquefied compressed gas cylinders; accessories and equipment; requirements. 75.1106-5 Section...

  3. 30 CFR 75.1106-5 - Maintenance and tests of liquefied and nonliquefied compressed gas cylinders; accessories and...

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... MANDATORY SAFETY STANDARDS-UNDERGROUND COAL MINES Fire Protection § 75.1106-5 Maintenance and tests of liquefied and nonliquefied compressed gas cylinders; accessories and equipment; requirements. (a) Hose lines... nonliquefied compressed gas cylinders; accessories and equipment; requirements. 75.1106-5 Section...

  4. 30 CFR 75.1106-5 - Maintenance and tests of liquefied and nonliquefied compressed gas cylinders; accessories and...

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... MANDATORY SAFETY STANDARDS-UNDERGROUND COAL MINES Fire Protection § 75.1106-5 Maintenance and tests of liquefied and nonliquefied compressed gas cylinders; accessories and equipment; requirements. (a) Hose lines... nonliquefied compressed gas cylinders; accessories and equipment; requirements. 75.1106-5 Section...

  5. 30 CFR 75.1106-5 - Maintenance and tests of liquefied and nonliquefied compressed gas cylinders; accessories and...

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... MANDATORY SAFETY STANDARDS-UNDERGROUND COAL MINES Fire Protection § 75.1106-5 Maintenance and tests of liquefied and nonliquefied compressed gas cylinders; accessories and equipment; requirements. (a) Hose lines... nonliquefied compressed gas cylinders; accessories and equipment; requirements. 75.1106-5 Section...

  6. The geologic relationships of industrial mineral deposits and asbestos in the western united states

    USGS Publications Warehouse

    VanGosen, B.S.

    2009-01-01

    In recent years, U.S. regulatory agencies have placed emphasis on identifying and regulating asbestos dust exposures in the mining environment, with a particular focus upon industrial mineral deposits in which asbestos occurs as an accessory mineral. Because asbestos minerals form in specific geologic environments, only certain predictable types of industrial mineral deposits can potentially host asbestos mineralization. By applying a basic knowledge of asbestos geology, the costly and time consuming efforts of asbestos monitoring and analyses can be directed towards those mineral deposit types most likely to contain asbestos mineralogy, while saving efforts on the mineral deposits that are unlikely to contain asbestos. While the vast majority of industrial mineral deposits in the Western United States are asbestos-free, there are several types that can, in some instances, host asbestos mineralization, or be closely associated with it. These industrial mineral deposits include a few types of aggregate, dimension, and decorative stone, and some deposits of chromite-nickel, magnesite, nepheline syenite, olivine, rare earth elements, talc, vermiculite, and wollastonite.

  7. 26 CFR 48.4061(b)-2 - Definition of parts or accessories.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 26 Internal Revenue 16 2013-04-01 2013-04-01 false Definition of parts or accessories. 48.4061(b)-2 Section 48.4061(b)-2 Internal Revenue INTERNAL REVENUE SERVICE, DEPARTMENT OF THE TREASURY (CONTINUED) MISCELLANEOUS EXCISE TAXES MANUFACTURERS AND RETAILERS EXCISE TAXES Motor Vehicles, Tires, Tubes, Tread Rubber, and Taxable Fuel Automotive...

  8. 26 CFR 48.4061(b)-2 - Definition of parts or accessories.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 26 Internal Revenue 16 2012-04-01 2012-04-01 false Definition of parts or accessories. 48.4061(b)-2 Section 48.4061(b)-2 Internal Revenue INTERNAL REVENUE SERVICE, DEPARTMENT OF THE TREASURY (CONTINUED) MISCELLANEOUS EXCISE TAXES MANUFACTURERS AND RETAILERS EXCISE TAXES Motor Vehicles, Tires, Tubes, Tread Rubber, and Taxable Fuel Automotive...

  9. 26 CFR 48.4061(b)-2 - Definition of parts or accessories.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 26 Internal Revenue 16 2011-04-01 2011-04-01 false Definition of parts or accessories. 48.4061(b)-2 Section 48.4061(b)-2 Internal Revenue INTERNAL REVENUE SERVICE, DEPARTMENT OF THE TREASURY (CONTINUED) MISCELLANEOUS EXCISE TAXES MANUFACTURERS AND RETAILERS EXCISE TAXES Motor Vehicles, Tires, Tubes, Tread Rubber, and Taxable Fuel Automotive...

  10. 21 CFR 884.1300 - Uterotubal carbon dioxide insufflator and accessories.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 21 Food and Drugs 8 2010-04-01 2010-04-01 false Uterotubal carbon dioxide insufflator and accessories. 884.1300 Section 884.1300 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES OBSTETRICAL AND GYNECOLOGICAL DEVICES Obstetrical and Gynecological Diagnostic Devices §...

  11. 21 CFR 878.4200 - Introduction/drainage catheter and accessories.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 21 Food and Drugs 8 2011-04-01 2011-04-01 false Introduction/drainage catheter and accessories. 878.4200 Section 878.4200 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES GENERAL AND PLASTIC SURGERY DEVICES Surgical Devices §...

  12. 21 CFR 878.4400 - Electrosurgical cutting and coagulation device and accessories.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 21 Food and Drugs 8 2011-04-01 2011-04-01 false Electrosurgical cutting and coagulation device and accessories. 878.4400 Section 878.4400 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES GENERAL AND PLASTIC SURGERY DEVICES Surgical Devices §...

  13. 76 FR 585 - In the Matter of Certain Handbags, Luggage, Accessories and Packaging Thereof; Notice of...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-01-05

    ... From the Federal Register Online via the Government Publishing Office ] INTERNATIONAL TRADE COMMISSION In the Matter of Certain Handbags, Luggage, Accessories and Packaging Thereof; Notice of... 202-205-2000. Hearing impaired individuals are advised that information on this matter can be...

  14. Manual versus automated methods for cleaning reusable accessory devices used for minimally invasive surgical procedures.

    PubMed

    Alfa, M J; Nemes, R

    2004-09-01

    We undertook a simulated-use study using quantitative methods to evaluate the cleaning efficacy of ported and non-ported accessory devices used in minimally invasive surgery. We chose laparoscopic scissors and forceps to represent worst-case devices which were inoculated with artificial test soil containing 10(6) cfu/mL Enterococcus faecalis and Geobacillus stearothermophilus and allowed to dry for 1 h. Cleaning was performed manually, as well as by the automated SI-Auto Narrow lumen cleaner. Manual cleaning left two- to 50-fold more soil residuals (protein, haemoglobin and carbohydrate) inside the lumen of non-ported versus ported laparoscopic accessory devices. The SI-Auto Narrow lumen cleaner was more efficient than manual cleaning and achieved >99% reduction in soil parameters in both non-ported (using retro-flushing) and ported laparoscopic devices. Only the automated cleaning of ported devices achieved 10(3)-10(4)-fold reduction in bacterial numbers. Sonication alone (no flushing of inner channel) did not effectively remove soil or organisms from the inner channel. Our findings indicate that non-ported accessory devices cannot be as reliably cleaned as ported devices regardless of the cleaning method used. If non-ported accessory devices are reprocessed, they should be cleaned using retro-flushing in an automated narrow lumen cleaner. PMID:15350714

  15. 21 CFR 888.5850 - Nonpowered orthopedic traction apparatus and accessories.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 21 Food and Drugs 8 2010-04-01 2010-04-01 false Nonpowered orthopedic traction apparatus and accessories. 888.5850 Section 888.5850 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES ORTHOPEDIC DEVICES Surgical Devices § 888.5850 Nonpowered orthopedic traction apparatus and...

  16. Transrectal ultrasonographic characterization of the accessory sex glands, pelvic urethra, and ureters in normal geldings.

    PubMed

    Schnobrich, Maria Raymond; Turner, Regina Orstaglio; Belcher, Carolyn Niles; Slack, JoAnn

    2016-01-15

    Transrectal ultrasound of the internal urogenital tract may be used to aid in the diagnosis of reproductive tract and urinary tract pathology in both stallions and geldings. Abnormalities of the accessory sex glands of geldings are uncommon, although prostatic masses have recently been described in adult geldings presenting with dysuria, stranguria, and/or hematuria. The purpose of this study was to describe the normal ultrasonographic features and sizes of the accessory sex glands, caudal ureters, and pelvic urethra in clinically normal geldings. Eleven healthy geldings with no history of urogenital tract pathology were evaluated by a single observer experienced in ultrasound of the stallion accessory sex glands. The ultrasonographic appearance, relative anatomic relationships and sizes of the accessory sex glands, caudal ureters, and pelvic urethra were investigated using both rectal linear array and microconvex array transducers. Summary statistics including mean, standard error, confidence intervals, and range were calculated for each structure. There were no statistically significant differences in measurements between the left and right sides of paired structures or between measurements obtained with different transducers. Fluid was present in the seminal vesicles of 7 of 9 subjects. Midline cysts of the urethra as well as bulbourethral gland and prostatic cysts were identified. The normal reference ranges defined in this study will be useful in the clinical evaluation of geldings with suspected internal urogenital tract pathology. PMID:26483314

  17. 21 CFR 882.4300 - Manual cranial drills, burrs, trephines, and their accessories

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 21 Food and Drugs 8 2014-04-01 2014-04-01 false Manual cranial drills, burrs, trephines, and their accessories 882.4300 Section 882.4300 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES NEUROLOGICAL DEVICES Neurological Surgical Devices 882.4300 Manual cranial drills,...

  18. 14 CFR 221.52 - Airport to airport application, accessorial services.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 14 Aeronautics and Space 4 2011-01-01 2011-01-01 false Airport to airport application, accessorial services. 221.52 Section 221.52 Aeronautics and Space OFFICE OF THE SECRETARY, DEPARTMENT OF TRANSPORTATION (AVIATION PROCEEDINGS) ECONOMIC REGULATIONS TARIFFS Requirements Applicable to All Statements of Fares...

  19. 14 CFR 221.52 - Airport to airport application, accessorial services.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 14 Aeronautics and Space 4 2013-01-01 2013-01-01 false Airport to airport application, accessorial services. 221.52 Section 221.52 Aeronautics and Space OFFICE OF THE SECRETARY, DEPARTMENT OF TRANSPORTATION (AVIATION PROCEEDINGS) ECONOMIC REGULATIONS TARIFFS Requirements Applicable to All Statements of Fares...

  20. 14 CFR 221.52 - Airport to airport application, accessorial services.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 14 Aeronautics and Space 4 2012-01-01 2012-01-01 false Airport to airport application, accessorial services. 221.52 Section 221.52 Aeronautics and Space OFFICE OF THE SECRETARY, DEPARTMENT OF TRANSPORTATION (AVIATION PROCEEDINGS) ECONOMIC REGULATIONS TARIFFS Requirements Applicable to All Statements of Fares...

  1. Total laparoscopic removal of accessory gallbladder: A case report and review of literature.

    PubMed

    Cozacov, Yaniv; Subhas, Gokulakkrishna; Jacobs, Michael; Parikh, Janak

    2015-12-27

    Accessory gallbladder is a rare congenital anomaly occurring in 1 in 4000 births, that is not associated with any specific symptoms. Usually this cannot be diagnosed on ultrasonography and hence they are usually not diagnosed preoperatively. Removal of the accessory gallbladder is necessary to avoid recurrence of symptoms. H-type accessory gallbladder is a rare anomaly. Once identified intra-operatively during laparoscopic cholecystectomy, the surgery is usually converted to open. By using the main gallbladder for liver traction and doing a dome down technique for the accessory gallbladder, we were able to perform the double cholecystectomy with intra-operative cholangiogram laparoscopically. Laparoscopic cholecystectomy was performed in 27-year-old male for biliary colic. Prior imaging with computer tomography-scan and ultrasound did not show a duplicated gallbladder. Intraoperatively after ligation of cystic artery and duct an additional structure was seen on its medial aspect. Intraoperative cholangiogram confirmed the patency of intra-hepatic and extra-hepatic biliary ducts. Subsequent dissection around this structure revealed a second gallbladder with cystic duct (H-type). Pathological analysis confirmed the presence of two gallbladders with features of chronic cholecystitis. It is important to use cholangiogram to identify structural anomalies and avoid complications. PMID:26730286

  2. Total laparoscopic removal of accessory gallbladder: A case report and review of literature

    PubMed Central

    Cozacov, Yaniv; Subhas, Gokulakkrishna; Jacobs, Michael; Parikh, Janak

    2015-01-01

    Accessory gallbladder is a rare congenital anomaly occurring in 1 in 4000 births, that is not associated with any specific symptoms. Usually this cannot be diagnosed on ultrasonography and hence they are usually not diagnosed preoperatively. Removal of the accessory gallbladder is necessary to avoid recurrence of symptoms. H-type accessory gallbladder is a rare anomaly. Once identified intra-operatively during laparoscopic cholecystectomy, the surgery is usually converted to open. By using the main gallbladder for liver traction and doing a dome down technique for the accessory gallbladder, we were able to perform the double cholecystectomy with intra-operative cholangiogram laparoscopically. Laparoscopic cholecystectomy was performed in 27-year-old male for biliary colic. Prior imaging with computer tomography-scan and ultrasound did not show a duplicated gallbladder. Intraoperatively after ligation of cystic artery and duct an additional structure was seen on its medial aspect. Intraoperative cholangiogram confirmed the patency of intra-hepatic and extra-hepatic biliary ducts. Subsequent dissection around this structure revealed a second gallbladder with cystic duct (H-type). Pathological analysis confirmed the presence of two gallbladders with features of chronic cholecystitis. It is important to use cholangiogram to identify structural anomalies and avoid complications. PMID:26730286

  3. 21 CFR 882.4300 - Manual cranial drills, burrs, trephines, and their accessories

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 21 Food and Drugs 8 2010-04-01 2010-04-01 false Manual cranial drills, burrs, trephines, and their accessories 882.4300 Section 882.4300 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES NEUROLOGICAL DEVICES Neurological Surgical Devices 882.4300 Manual cranial drills,...

  4. 21 CFR 876.5880 - Isolated kidney perfusion and transport system and accessories.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 21 Food and Drugs 8 2012-04-01 2012-04-01 false Isolated kidney perfusion and transport system and....5880 Isolated kidney perfusion and transport system and accessories. (a) Identification. An isolated kidney perfusion and transport system and accesssories is a device that is used to support a donated or...

  5. 26 CFR 48.4061(b)-3 - Rebuilt, reconditioned, or repaired parts or accessories.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 26 Internal Revenue 16 2010-04-01 2010-04-01 true Rebuilt, reconditioned, or repaired parts or accessories. 48.4061(b)-3 Section 48.4061(b)-3 Internal Revenue INTERNAL REVENUE SERVICE, DEPARTMENT OF THE TREASURY (CONTINUED) MISCELLANEOUS EXCISE TAXES MANUFACTURERS AND RETAILERS EXCISE TAXES Motor Vehicles, Tires, Tubes, Tread Rubber, and...

  6. 26 CFR 48.4061(b)-3 - Rebuilt, reconditioned, or repaired parts or accessories.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 26 Internal Revenue 16 2012-04-01 2012-04-01 false Rebuilt, reconditioned, or repaired parts or accessories. 48.4061(b)-3 Section 48.4061(b)-3 Internal Revenue INTERNAL REVENUE SERVICE, DEPARTMENT OF THE TREASURY (CONTINUED) MISCELLANEOUS EXCISE TAXES MANUFACTURERS AND RETAILERS EXCISE TAXES Motor Vehicles, Tires, Tubes, Tread Rubber, and...

  7. 26 CFR 48.4061(b)-3 - Rebuilt, reconditioned, or repaired parts or accessories.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 26 Internal Revenue 16 2013-04-01 2013-04-01 false Rebuilt, reconditioned, or repaired parts or accessories. 48.4061(b)-3 Section 48.4061(b)-3 Internal Revenue INTERNAL REVENUE SERVICE, DEPARTMENT OF THE TREASURY (CONTINUED) MISCELLANEOUS EXCISE TAXES MANUFACTURERS AND RETAILERS EXCISE TAXES Motor Vehicles, Tires, Tubes, Tread Rubber, and...

  8. 26 CFR 48.4061(b)-3 - Rebuilt, reconditioned, or repaired parts or accessories.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 26 Internal Revenue 16 2011-04-01 2011-04-01 false Rebuilt, reconditioned, or repaired parts or accessories. 48.4061(b)-3 Section 48.4061(b)-3 Internal Revenue INTERNAL REVENUE SERVICE, DEPARTMENT OF THE TREASURY (CONTINUED) MISCELLANEOUS EXCISE TAXES MANUFACTURERS AND RETAILERS EXCISE TAXES Motor Vehicles, Tires, Tubes, Tread Rubber, and...

  9. 21 CFR 874.4680 - Bronchoscope (flexible or rigid) and accessories.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 21 Food and Drugs 8 2013-04-01 2013-04-01 false Bronchoscope (flexible or rigid) and accessories. 874.4680 Section 874.4680 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES EAR, NOSE, AND THROAT DEVICES Surgical Devices § 874.4680...

  10. 21 CFR 874.4760 - Nasopharyngoscope (flexible or rigid) and accessories.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 21 Food and Drugs 8 2010-04-01 2010-04-01 false Nasopharyngoscope (flexible or rigid) and accessories. 874.4760 Section 874.4760 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES EAR, NOSE, AND THROAT DEVICES Surgical Devices §...

  11. 21 CFR 874.4760 - Nasopharyngoscope (flexible or rigid) and accessories.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 21 Food and Drugs 8 2012-04-01 2012-04-01 false Nasopharyngoscope (flexible or rigid) and accessories. 874.4760 Section 874.4760 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES EAR, NOSE, AND THROAT DEVICES Surgical Devices §...

  12. 21 CFR 874.4760 - Nasopharyngoscope (flexible or rigid) and accessories.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 21 Food and Drugs 8 2013-04-01 2013-04-01 false Nasopharyngoscope (flexible or rigid) and accessories. 874.4760 Section 874.4760 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES EAR, NOSE, AND THROAT DEVICES Surgical Devices §...

  13. 21 CFR 874.4680 - Bronchoscope (flexible or rigid) and accessories.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 21 Food and Drugs 8 2014-04-01 2014-04-01 false Bronchoscope (flexible or rigid) and accessories. 874.4680 Section 874.4680 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES EAR, NOSE, AND THROAT DEVICES Surgical Devices § 874.4680...

  14. 21 CFR 874.4710 - Esophagoscope (flexible or rigid) and accessories.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 21 Food and Drugs 8 2012-04-01 2012-04-01 false Esophagoscope (flexible or rigid) and accessories. 874.4710 Section 874.4710 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES EAR, NOSE, AND THROAT DEVICES Surgical Devices §...

  15. 21 CFR 874.4710 - Esophagoscope (flexible or rigid) and accessories.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 21 Food and Drugs 8 2010-04-01 2010-04-01 false Esophagoscope (flexible or rigid) and accessories. 874.4710 Section 874.4710 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES EAR, NOSE, AND THROAT DEVICES Surgical Devices §...

  16. 21 CFR 874.4680 - Bronchoscope (flexible or rigid) and accessories.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 21 Food and Drugs 8 2010-04-01 2010-04-01 false Bronchoscope (flexible or rigid) and accessories. 874.4680 Section 874.4680 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES EAR, NOSE, AND THROAT DEVICES Surgical Devices § 874.4680...

  17. 21 CFR 874.4680 - Bronchoscope (flexible or rigid) and accessories.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 21 Food and Drugs 8 2012-04-01 2012-04-01 false Bronchoscope (flexible or rigid) and accessories. 874.4680 Section 874.4680 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES EAR, NOSE, AND THROAT DEVICES Surgical Devices § 874.4680...

  18. 21 CFR 874.4710 - Esophagoscope (flexible or rigid) and accessories.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 21 Food and Drugs 8 2014-04-01 2014-04-01 false Esophagoscope (flexible or rigid) and accessories. 874.4710 Section 874.4710 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES EAR, NOSE, AND THROAT DEVICES Surgical Devices §...

  19. 21 CFR 874.4710 - Esophagoscope (flexible or rigid) and accessories.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 21 Food and Drugs 8 2011-04-01 2011-04-01 false Esophagoscope (flexible or rigid) and accessories. 874.4710 Section 874.4710 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES EAR, NOSE, AND THROAT DEVICES Surgical Devices §...

  20. 21 CFR 874.4760 - Nasopharyngoscope (flexible or rigid) and accessories.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 21 Food and Drugs 8 2014-04-01 2014-04-01 false Nasopharyngoscope (flexible or rigid) and accessories. 874.4760 Section 874.4760 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES EAR, NOSE, AND THROAT DEVICES Surgical Devices §...

  1. 21 CFR 874.4680 - Bronchoscope (flexible or rigid) and accessories.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 21 Food and Drugs 8 2011-04-01 2011-04-01 false Bronchoscope (flexible or rigid) and accessories. 874.4680 Section 874.4680 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES EAR, NOSE, AND THROAT DEVICES Surgical Devices § 874.4680...

  2. 21 CFR 874.4760 - Nasopharyngoscope (flexible or rigid) and accessories.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 21 Food and Drugs 8 2011-04-01 2011-04-01 false Nasopharyngoscope (flexible or rigid) and accessories. 874.4760 Section 874.4760 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES EAR, NOSE, AND THROAT DEVICES Surgical Devices §...

  3. 21 CFR 874.4710 - Esophagoscope (flexible or rigid) and accessories.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 21 Food and Drugs 8 2013-04-01 2013-04-01 false Esophagoscope (flexible or rigid) and accessories. 874.4710 Section 874.4710 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES EAR, NOSE, AND THROAT DEVICES Surgical Devices §...

  4. [Contortion of an accessory lobe of the liver causing acute abdominal distress (author's transl)].

    PubMed

    Peter, H; Strohm, W D

    1980-08-01

    Contortion of an accessory lobe of the liver occurred in a 23 year old female patient while jumping the trampoline, causing immediately the classical symptoms of acute abdominal distress. Diagnosis was established and therapy performed by surgery. Variability of liver lobes is discussed as well as therapeutic steps to be taken eventually in these cases. PMID:7453471

  5. 77 FR 37768 - Airworthiness Directives; Aeronautical Accessories, Inc., High Landing Gear Aft Crosstube Assembly

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-06-25

    ... . SUPPLEMENTARY INFORMATION: Discussion On Feb. 3, 2012, at 77 FR 5420, the Federal Register published our Notice... ``significant rule'' under DOT Regulatory Policies and Procedures (44 FR 11034, February 26, 1979); (3) Will not... Accessories, Inc., High Landing Gear Aft Crosstube Assembly AGENCY: Federal Aviation Administration (FAA),...

  6. 77 FR 27663 - Airworthiness Directives; Aeronautical Accessories, Inc. High Landing Gear Forward Crosstube...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-05-11

    ... FR 11034, February 26, 1979); 3. Will not affect intrastate aviation in Alaska to the extent that it... Accessories, Inc. High Landing Gear Forward Crosstube Assembly AGENCY: Federal Aviation Administration (FAA... flight of civil aircraft in air commerce by prescribing regulations for practices, methods,...

  7. 26 CFR 48.4062(a)-1 - Specific parts or accessories.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 26 Internal Revenue 16 2010-04-01 2010-04-01 true Specific parts or accessories. 48.4062(a)-1 Section 48.4062(a)-1 Internal Revenue INTERNAL REVENUE SERVICE, DEPARTMENT OF THE TREASURY (CONTINUED) MISCELLANEOUS EXCISE TAXES MANUFACTURERS AND RETAILERS EXCISE TAXES Motor Vehicles, Tires, Tubes, Tread...

  8. Mitral isthmus conduction block: intriguing result of radiofrequency catheter ablation for a left concealed accessory pathway.

    PubMed

    Bulava, Alan; Hanis, Jiri; Sitek, David

    2010-04-01

    We report on our experience with complete mitral isthmus conduction block achieved inadvertently during radiofrequency (RF) catheter ablation for a left lateral concealed accessory pathway (AP) mimicking concentric retrograde activation. This rare condition should be acknowledged to avoid misdiagnosis of another concomitant AP and to avoid RF applications in inappropriate areas. PMID:20019014

  9. 21 CFR 878.4820 - Surgical instrument motors and accessories/attachments.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 21 Food and Drugs 8 2013-04-01 2013-04-01 false Surgical instrument motors and accessories/attachments. 878.4820 Section 878.4820 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES GENERAL AND PLASTIC SURGERY DEVICES Surgical Devices ...

  10. 21 CFR 878.4200 - Introduction/drainage catheter and accessories.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 21 Food and Drugs 8 2013-04-01 2013-04-01 false Introduction/drainage catheter and accessories. 878.4200 Section 878.4200 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES GENERAL AND PLASTIC SURGERY DEVICES Surgical Devices ...

  11. 21 CFR 878.4820 - Surgical instrument motors and accessories/attachments.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 21 Food and Drugs 8 2011-04-01 2011-04-01 false Surgical instrument motors and accessories/attachments. 878.4820 Section 878.4820 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES GENERAL AND PLASTIC SURGERY DEVICES Surgical Devices ...

  12. 21 CFR 878.4200 - Introduction/drainage catheter and accessories.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 21 Food and Drugs 8 2014-04-01 2014-04-01 false Introduction/drainage catheter and accessories. 878.4200 Section 878.4200 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES GENERAL AND PLASTIC SURGERY DEVICES Surgical Devices ...

  13. 21 CFR 878.4820 - Surgical instrument motors and accessories/attachments.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 21 Food and Drugs 8 2012-04-01 2012-04-01 false Surgical instrument motors and accessories/attachments. 878.4820 Section 878.4820 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES GENERAL AND PLASTIC SURGERY DEVICES Surgical Devices ...

  14. 21 CFR 878.4820 - Surgical instrument motors and accessories/attachments.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 21 Food and Drugs 8 2014-04-01 2014-04-01 false Surgical instrument motors and accessories/attachments. 878.4820 Section 878.4820 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES GENERAL AND PLASTIC SURGERY DEVICES Surgical Devices ...

  15. 21 CFR 878.4200 - Introduction/drainage catheter and accessories.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 21 Food and Drugs 8 2012-04-01 2012-04-01 false Introduction/drainage catheter and accessories. 878.4200 Section 878.4200 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES GENERAL AND PLASTIC SURGERY DEVICES Surgical Devices ...

  16. Type II Endoleaks Involving an Accessory Renal Artery and the Inferior Mesenteric Artery

    SciTech Connect

    Martin, E. C.; Todd, George J.

    2011-02-15

    Two patients are described with type II endoleaks involving an accessory renal artery and the inferior mesenteric artery. One patient was successfully embolized via the translumbar route. The other continues to be observed; the endoleak is expected to close spontaneously because both the inflow and outflow are significantly compromised.

  17. 21 CFR 878.4200 - Introduction/drainage catheter and accessories.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 21 Food and Drugs 8 2010-04-01 2010-04-01 false Introduction/drainage catheter and accessories. 878.4200 Section 878.4200 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES GENERAL AND PLASTIC SURGERY DEVICES Surgical Devices ...

  18. 21 CFR 878.4820 - Surgical instrument motors and accessories/attachments.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 21 Food and Drugs 8 2010-04-01 2010-04-01 false Surgical instrument motors and accessories/attachments. 878.4820 Section 878.4820 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES GENERAL AND PLASTIC SURGERY DEVICES Surgical Devices ...

  19. 29 CFR 1919.27 - Unit proof tests-winches, derricks and gear accessory thereto.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 29 Labor 7 2010-07-01 2010-07-01 false Unit proof tests-winches, derricks and gear accessory... and Proof Loads; Heat Treatment; Competent Persons 1919.27 Unit proof testswinches, derricks and... practicable angle. The angle at which the test was made shall be stated in the certificate of test. After...

  20. 29 CFR 1919.27 - Unit proof tests-winches, derricks and gear accessory thereto.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 29 Labor 7 2013-07-01 2013-07-01 false Unit proof tests-winches, derricks and gear accessory... and Proof Loads; Heat Treatment; Competent Persons 1919.27 Unit proof testswinches, derricks and... practicable angle. The angle at which the test was made shall be stated in the certificate of test. After...