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Artykuły w czasopismach na temat „Giant diatoms”

Autor: Grafiati

Data publikacji: 2 czerwca 2025

Data aktualizacji: 31 lipca 2025

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1

Burchell, M. J., K. H. McDermott, M. C. Price, and L. J. Yolland. "Survival of fossils under extreme shocks induced by hypervelocity impacts." Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 372, no. 2023 (2014): 20130190. http://dx.doi.org/10.1098/rsta.2013.0190.

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Experimental data are shown for survival of fossilized diatoms undergoing shocks in the GPa range. The results were obtained from hypervelocity impact experiments which fired fossilized diatoms frozen in ice into water targets. After the shots, the material recovered from the target water was inspected for diatom fossils. Nine shots were carried out, at speeds from 0.388 to 5.34 km s −1 , corresponding to mean peak pressures of 0.2–19 GPa. In all cases, fragmented fossilized diatoms were recovered, but both the mean and the maximum fragment size decreased with increasing impact speed and hence

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2

Riding, Robert, Stanley M. Awramik, Barbara M. Winsborough, Karen M. Griffin, and Robert F. Dill. "Bahamian giant stromatolites: microbial composition of surface mats." Geological Magazine 128, no. 3 (1991): 227–34. http://dx.doi.org/10.1017/s001675680002207x.

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AbstractSubtidal columnar stromatolites up to 2.5 m high near Lee Stocking Island in the Exuma Cays, Bahamas, have surface mats approximately equally composed of algae and cyanobacteria. The stromatolites are composed of fine–medium oöid and peloid sand. This sediment is supplied to the growing stromatolite surfaces by strong tidal currents which lift grains into suspension and sweep migrating dunes over the columns. The algae include an unidentified filamentous chlorophyte, and numerous diatom species mostly belonging to Mastogloia, Nitzschia and Navicula. The dominant cyanobacteria are two o

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3

Glushchenko, Anton M., Yevhen I. Maltsev, John Patrick Kociolek, Irina V. Kuznetsova, and Maxim S. Kulikovskiy. "Molecular and Morphological Investigations of Two Giant Diatom Cymbella Species from the Transbaikal Area (Russia, Siberia) with Comments on Their Distributions." Plants 11, no. 18 (2022): 2445. http://dx.doi.org/10.3390/plants11182445.

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For the first time, a giant diatom species of the genus Cymbella from Lake Baikal was studied using molecular methods. Molecular and morphological investigations allowed to us to described one new species, Cymbella baicalaspera Glushchenko, Kulikovskiy and Kociolek sp. nov. This species is both morphologically similar and phylogenetically close to a second giant Cymbella species that we investigated here, identified by us as Cymbella himalaspera Jüttner and Van de Vijver in Jüttner et al. 2010. This species was first described from Nepal on the basis of a morphological investigation. Small mor

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4

Choi, Ah Yeong, Jong-Sik Ryu, Kiseong Hyeong, et al. "Silicon Isotope Measurement of Giant Diatoms Using MC-ICP-MS." Journal of the Korean earth science society 42, no. 1 (2021): 1–10. http://dx.doi.org/10.5467/jkess.2021.42.1.1.

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5

Deb, B., and G. Kurizki. "Formation of Giant Quasibound Cold Diatoms by Strong Atom-Cavity Coupling." Physical Review Letters 83, no. 4 (1999): 714–17. http://dx.doi.org/10.1103/physrevlett.83.714.

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Moravcová, Adéla, Ota Rauch, Jaromír Lukavský, and Linda Nedbalová. "The response of epilithic diatom assemblages to sewage pollution in mountain streams of the Czech Republic." Plant Ecology and Evolution 146, no. (2) (2013): 153–66. https://doi.org/10.5091/plecevo.2013.814.

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<b>Background and aim</b> – Mountain streams represent sensitive ecosystems of prime importance for biodiversity conservation. However, the knowledge of the impact of sewage pollution related to intensive recreational exploitation is still limited in these habitats. Our aim was to assess the response of stream diatom assemblages to sewage pollution in the Giant Mountains and the Bohemian Forest, and to find the main factors influencing the community structure. <b>Methods</b> – Epilithic samples from sixteen streams were collected, both in unaffected stream sections and at sites downstream of s

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7

Thienpont, Joshua R., Jennifer B. Korosi, Kathryn E. Hargan, et al. "Multi-trophic level response to extreme metal contamination from gold mining in a subarctic lake." Proceedings of the Royal Society B: Biological Sciences 283, no. 1836 (2016): 20161125. http://dx.doi.org/10.1098/rspb.2016.1125.

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Giant Mine, located in the city of Yellowknife (Northwest Territories, Canada), is a dramatic example of subarctic legacy contamination from mining activities, with remediation costs projected to exceed $1 billion. Operational between 1948 and 2004, gold extraction at Giant Mine released large quantities of arsenic and metals from the roasting of arsenopyrite ore. We examined the long-term ecological effects of roaster emissions on Pocket Lake, a small lake at the edge of the Giant Mine lease boundary, using a spectrum of palaeoenvironmental approaches. A dated sedimentary profile tracked stri

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8

Wilson, MR, JM Hush, and NA Walker. "The involvement of Microbial Epiphytes in Uptake Measurements with the Giant-celled Alga Chara australis." Functional Plant Biology 15, no. 4 (1988): 483. http://dx.doi.org/10.1071/pp9880483.

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The giant-celled algae Chara and Nitella have been used extensively in studies of the transport of ions and other solutes. Before this report, uptake measurements were made without a detailed consideration of the effects of microbial epiphytes living on the external surface of the algal cell wall. Examination of the cell walls of Chara and Nitella with the scanning electron microscope revealed the presence of an often dense microflora consisting of diatoms, many types of bacteria, and even fungi. The contribution of this microflora to uptake measurements made with radiotracers was estimated by

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9

Kemp, A. E. S., R. B. Pearce, I. Grigorov, et al. "Production of giant marine diatoms and their export at oceanic frontal zones: Implications for Si and C flux from stratified oceans." Global Biogeochemical Cycles 20, no. 4 (2006): n/a. http://dx.doi.org/10.1029/2006gb002698.

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10

Xiong, Zhifang, Tiegang Li, Xavier Crosta, Thomas Algeo, Fengming Chang та Bin Zhai. "Potential role of giant marine diatoms in sequestration of atmospheric CO2 during the Last Glacial Maximum: δ13C evidence from laminated Ethmodiscus rex mats in tropical West Pacific". Global and Planetary Change 108 (вересень 2013): 1–14. http://dx.doi.org/10.1016/j.gloplacha.2013.06.003.

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11

Rijsdijk, Kenneth F., Julian P. Hume, Frans Bunnik, et al. "Mid-Holocene vertebrate bone Concentration-Lagerstätte on oceanic island Mauritius provides a window into the ecosystem of the dodo (Raphus cucullatus)." Quaternary Science Reviews 28, no. 1-2 (2009): 14–24. https://doi.org/10.5281/zenodo.13432957.

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(Uploaded by Plazi for the Bat Literature Project) Although the recent history of human colonisation and impact on Mauritius is well documented, virtually no records of the pre-human native ecosystem exist, making it difficult to assess the magnitude of the changes brought about by human settlement. Here, we describe a 4000-year-old fossil bed at Mare aux Songes (MAS) in south-eastern Mauritius that contains both macrofossils (vertebrate fauna, gastropods, insects and flora) and microfossils (diatoms, pollen, spores and phytoliths). With >250 bone fragments/m2 and comprising 50% of all know

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12

Rijsdijk, Kenneth F., Julian P. Hume, Frans Bunnik, et al. "Mid-Holocene vertebrate bone Concentration-Lagerstätte on oceanic island Mauritius provides a window into the ecosystem of the dodo (Raphus cucullatus)." Quaternary Science Reviews 28, no. 1-2 (2009): 14–24. https://doi.org/10.5281/zenodo.13432957.

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(Uploaded by Plazi for the Bat Literature Project) Although the recent history of human colonisation and impact on Mauritius is well documented, virtually no records of the pre-human native ecosystem exist, making it difficult to assess the magnitude of the changes brought about by human settlement. Here, we describe a 4000-year-old fossil bed at Mare aux Songes (MAS) in south-eastern Mauritius that contains both macrofossils (vertebrate fauna, gastropods, insects and flora) and microfossils (diatoms, pollen, spores and phytoliths). With >250 bone fragments/m2 and comprising 50% of all know

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13

Rijsdijk, Kenneth F., Julian P. Hume, Frans Bunnik, et al. "Mid-Holocene vertebrate bone Concentration-Lagerstätte on oceanic island Mauritius provides a window into the ecosystem of the dodo (Raphus cucullatus)." Quaternary Science Reviews 28, no. 1-2 (2009): 14–24. https://doi.org/10.5281/zenodo.13432957.

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(Uploaded by Plazi for the Bat Literature Project) Although the recent history of human colonisation and impact on Mauritius is well documented, virtually no records of the pre-human native ecosystem exist, making it difficult to assess the magnitude of the changes brought about by human settlement. Here, we describe a 4000-year-old fossil bed at Mare aux Songes (MAS) in south-eastern Mauritius that contains both macrofossils (vertebrate fauna, gastropods, insects and flora) and microfossils (diatoms, pollen, spores and phytoliths). With >250 bone fragments/m2 and comprising 50% of all know

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14

Rijsdijk, Kenneth F., Julian P. Hume, Frans Bunnik, et al. "Mid-Holocene vertebrate bone Concentration-Lagerstätte on oceanic island Mauritius provides a window into the ecosystem of the dodo (Raphus cucullatus)." Quaternary Science Reviews 28, no. 1-2 (2009): 14–24. https://doi.org/10.5281/zenodo.13432957.

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(Uploaded by Plazi for the Bat Literature Project) Although the recent history of human colonisation and impact on Mauritius is well documented, virtually no records of the pre-human native ecosystem exist, making it difficult to assess the magnitude of the changes brought about by human settlement. Here, we describe a 4000-year-old fossil bed at Mare aux Songes (MAS) in south-eastern Mauritius that contains both macrofossils (vertebrate fauna, gastropods, insects and flora) and microfossils (diatoms, pollen, spores and phytoliths). With >250 bone fragments/m2 and comprising 50% of all know

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15

Rijsdijk, Kenneth F., Julian P. Hume, Frans Bunnik, et al. "Mid-Holocene vertebrate bone Concentration-Lagerstätte on oceanic island Mauritius provides a window into the ecosystem of the dodo (Raphus cucullatus)." Quaternary Science Reviews 28, no. 1-2 (2009): 14–24. https://doi.org/10.5281/zenodo.13432957.

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(Uploaded by Plazi for the Bat Literature Project) Although the recent history of human colonisation and impact on Mauritius is well documented, virtually no records of the pre-human native ecosystem exist, making it difficult to assess the magnitude of the changes brought about by human settlement. Here, we describe a 4000-year-old fossil bed at Mare aux Songes (MAS) in south-eastern Mauritius that contains both macrofossils (vertebrate fauna, gastropods, insects and flora) and microfossils (diatoms, pollen, spores and phytoliths). With >250 bone fragments/m2 and comprising 50% of all know

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16

Smetacek, Victor. "The giant diatom dump." Nature 406, no. 6796 (2000): 574–75. http://dx.doi.org/10.1038/35020665.

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17

Bessell, M. S., and M. Scholz. "Photospheric Models for Cool Giant Stars." International Astronomical Union Colloquium 106 (1989): 67–80. http://dx.doi.org/10.1017/s0252921100062734.

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AbstractModels for M and C giant stars differ from those for hotter stars by having complicated state equations and opacities dominated by lines from diatomic and polyatomic molecules. In addition many cool giants have atmospheres which are extended, and which cannot therefore be adequately modelled using a plane-parallel approximation. Mira variable stars have atmospheres which are even more extended due to the regular passage of shock waves through their atmosphere. In this review we will discuss recent modelling of such atmospheres and show comparisons with observations of variable and non-

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18

Miller, Steven, Jonathan Tennyson, Hugh R. A. Jones, and Andrew J. Longmore. "Computation of Frequencies and Linestrengths for Triatomic Molecules of Astronomical Interest." International Astronomical Union Colloquium 146 (1994): 296–309. http://dx.doi.org/10.1017/s0252921100021412.

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Molecular bands have been used as a diagnostic of spectral type since the 1860's. TiO was first identified as the dominant feature in optical spectra of cool giants in 1904 (Fowler 1904). Many diatomic molecules have now been included (e.g. Jørgensen &amp; Larsson 1990) in detailed calculations of stellar opacity and attention is starting to focus on the incorporation of accurate data for triatomics. Triatomic molecules have a much greater density of states than diatomics; bending vibrational bands - generally lower in frequency than bond-stretching modes - may contribute considerably to “

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19

Villareal, Tracy A. "Buoyancy properties of the giant diatom Ethmodiscus." Journal of Plankton Research 14, no. 3 (1992): 459–63. http://dx.doi.org/10.1093/plankt/14.3.459.

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20

Ali, Asif, Hafiz Saad Khaliq, Aqsa Asad, et al. "Dielectric chiral metasurfaces for enhanced circular dichroism spectroscopy at near infrared regime." RSC Advances 13, no. 30 (2023): 20958–65. http://dx.doi.org/10.1039/d3ra02331a.

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A dielectric chiral meta-nano-surface based on a diatomic design strategy is demonstrated to comprehend giant chirality in the NIR regime for potential application in CD spectroscopy, and enantiomer separation and detection.

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21

Ladygina, L. V., and A. V. Pirkova. "Cultivation of the diatom algae Chaetoceros calcitrans f. pumilus (Paulsen) Takano, 1968 as food for giant oyster larvae Crassostrea gigas (Thunberg)." Marine Biological Journal 4, no. 2 (2019): 34–40. http://dx.doi.org/10.21072/mbj.2019.04.2.04.

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An impact of modified nutrient media F/2 and Conway on the growth and biomass accumulation of the diatom algae Chaetoceros calcitrans f. pumilus, which is a part of the food for cultivated larvae of the giant oyster Crassostrea gigas in the IMBR RAS nursery, was studied. Maximum values of cell and biomass concentrations were obtained on the modified F/2 nutrient medium (11.22 × 106 cells·ml-1 and 4.93 g·l-1, respectively), and they were much larger than those obtained on Conway medium. Growth parameters of C. calcitrans f. pumilus depended on the ratio of inorganic nitrogen and phosphorus, as

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22

Dietrich, James K., and John Donald Scott. "Modeling Thermally Induced Strain in Diatomite." SPE Journal 12, no. 01 (2007): 130–44. http://dx.doi.org/10.2118/97849-pa.

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Summary Diatoms and radiolarians are microorganisms that precipitate Opal-A to form siliceous tests that accumulate on the seafloor to form siliceous oozes. Progressive diagenesis of these deposits during burial results in thick, highly compressible reservoirs of exceptionally high porosity and low permeability, not unlike the chalk reservoirs of the North Sea. During burial and over time, the amorphous silica phase (Opal-A) becomes unstable and gradually changes in its structure to more stable, ordered Opal-A' and crystalline forms or phases of silica, namely Opal-CT and quartz. The Opal-A ?

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Lopes, A. S., E. Oliveira, M. Cunha, J. Silva, A. Barros, and M. Sousa. "346 ULTRASTRUCTURE OF A HUMAN GIANT MII OOCYTE: CASE REPORT." Reproduction, Fertility and Development 22, no. 1 (2010): 329. http://dx.doi.org/10.1071/rdv22n1ab346.

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The occurrence of giant oocytes has been reported with considerable frequency during IVF procedures in women of all ages and was associated with an increased response to gonadotrophin therapy. Previous studies suggested that giant oocytes, larger in diameter than normal oocytes and either at the GV, MI, or MII stage, might be a source of human digynic triploidy. However, to our knowledge there are no previous reports concerning the ultrastructure of human giant oocytes, and therefore the objective of this study was to characterize a human giant mature metaphase II oocyte from the ultrastuctura

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SMETACEK, VICTOR, PHILIPP ASSMY, and JOACHIM HENJES. "The role of grazing in structuring Southern Ocean pelagic ecosystems and biogeochemical cycles." Antarctic Science 16, no. 4 (2004): 541–58. http://dx.doi.org/10.1017/s0954102004002317.

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This review examines the links between pelagic ecology and ocean biogeochemistry with an emphasis on the role of the Southern Ocean in global cycling of carbon and silica. The structure and functioning of pelagic ecosystems is determined by the relationship between growth and mortality of its species populations. Whereas the key role of iron supply in conditioning the growth environment of land-remote oceans is now emerging, the factors shaping the mortality environment are still poorly understood. This paper addresses the role of grazing as a selective force operating on the structure and fun

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González-Férez, R., and P. Schmelcher. "Giant enhancement of photodissociation of polar diatomic molecules in electric fields." Physical Chemistry Chemical Physics 13, no. 42 (2011): 18810. http://dx.doi.org/10.1039/c1cp21169b.

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Lưu, Phạm Thanh. "Sự thay đổi theo không gian và thời gian của khu hệ thực vật phiêu sinh trong mối tương quan với các thông số môi trường ở sông Đồng Nai, Việt Nam". Tạp chí Khoa học 14, № 3 (2019): 149. http://dx.doi.org/10.54607/hcmue.js.14.3.2131(2017).

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Phytoplankton community and their correlation with environmental factors were investigated in the Dong Nai River. Higher diversity was observed in dry season with the dominance of diatom. Environmental variables were different between upper and lower sections. Phytoplankton metrics and the nutrient concentration characterized a pollution gradient along the river. Nutrient levels and turbidity governed the distribution of phytoplankton structure in the river.

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Khaliq, Hafiz Saad, Inki Kim, Kashif Riaz, et al. "Realizing Spin-Conserved and Spin-Encrypted Hologram using Multipolar-modulated Meta-platform." Journal of Physics: Conference Series 2015, no. 1 (2021): 012060. http://dx.doi.org/10.1088/1742-6596/2015/1/012060.

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Abstract The chiro-optical effects complemented with polarization conservation and wavefront shaping finds potential applications in advanced imaging, sorting and detection of enantiomers and quantum optics. Here, a unique design strategy proposed to manifest enormous chiro-optical effects using achiral structures (instead of conventional chiral antennas). The basic building block of the meta-platform contains a pair of achiral structures. The underlying mechanism behind the giant chiro-optical effects is explained by numerically calculating the multipolar resonances of scattering power. The d

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Armbrecht, Linda H., Victor Smetacek, Philipp Assmy, and Christine Klaas. "Cell death and aggregate formation in the giant diatom Coscinodiscus wailesii (Gran & Angst, 1931)." Journal of Experimental Marine Biology and Ecology 452 (March 2014): 31–39. http://dx.doi.org/10.1016/j.jembe.2013.12.004.

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B-Béres, Viktória, István Bácsi, Enikő T-Krasznai, Zsuzsanna Kókai, and Krisztina Buczkó. "First report of Navicula jakovljevicii Hustedt (Bacillariophyta) from Hungary: distribution, comparative morphology and a related species." Acta Botanica Croatica 74, no. 2 (2015): 253–64. http://dx.doi.org/10.1515/botcro-2015-0027.

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Abstract In Hungary Navicula jakovljevicii was firstly recorded in biofilm of Elodea nuttallii in 2005 in an oxbow of the catchment area of the River Danube. Subsequently, in 2006, N. jakovljevicii was also found in the same oxbow on reed stems as well. In the following years it appeared in another oxbow, suggesting an expanding distribution in the tributaries of the Danube in Hungary. The Hungarian population can be characterised as having mixed morphological features in comparison with other known N. jakovljevicii populations of Europe. When the morphological study was expanded, a similar, b

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Villareal, Tracy A., Leanne Joseph, Mark A. Brzezinski, Rebecca F. Shipe, Fredric Lipschultz, and Mark A. Altabet. "BIOLOGICAL AND CHEMICAL CHARACTERISTICS OF THE GIANT DIATOM ETHMODISCUS (BACILLARIOPHYCEAE) IN THE CENTRAL NORTH PACIFIC GYRE." Journal of Phycology 35, no. 5 (1999): 896–902. http://dx.doi.org/10.1046/j.1529-8817.1999.3550896.x.

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Nagai, Satoshi, Yutaka Hori, Takehiko Manabe, and Ichiro Imai. "Promotion of Sperm Formation of a Giant Diatom Coscinodiscus wailesii GRAN by a Marine Bacterium." Fisheries science 60, no. 5 (1994): 625–26. http://dx.doi.org/10.2331/fishsci.60.625.

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Bahls, Loren L. "Cymbella janischii—Giant Endemic Diatom of the Pacific Northwest: Morphology, Ecology and Distribution Compared to Cymbella mexicana." Northwest Science 81, no. 4 (2007): 284–92. http://dx.doi.org/10.3955/0029-344x-81.4.284.

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Patel, Nimesh A., Carl Gottlieb, Ken Young, et al. "SMA Spectral Line Survey of the Proto-Planetary Nebula CRL 618." Proceedings of the International Astronomical Union 14, S343 (2018): 483–84. http://dx.doi.org/10.1017/s1743921318008104.

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AbstractCarbon-rich Asymptotic Giant Branch (AGB) stars are major sources of gas and dust in the interstellar medium. During the brief (∼1000 yr) period in the evolution from AGB to the Planetary Nebula (PN) stage, the molecular composition evolves from mainly diatomic and small polyatomic species to more complex molecules. Using the Submillimeter Array (SMA), we have carried out a spectral line survey of CRL 618, covering a frequency range of 281.9 to 359.4 GHz. More than 1000 lines were detected in the ∼60 GHz range, most of them assigned to HC3N and c-C3H2, and their isotopologues. About 20

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Pegarkov, Alexander I., and Igor I. Tugov. "Giant above-threshold absorption by diatomic molecules in ultra-short strong pulses of resonant VUV lasers." Chemical Physics Letters 355, no. 1-2 (2002): 25–30. http://dx.doi.org/10.1016/s0009-2614(02)00138-0.

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Redondo, Enzo, and Adrián Petta. "Alternative treatment of recurrent skin wound in elephants." Ciencia Veterinaria 22, no. 2 (2020): 169–80. http://dx.doi.org/10.19137/cienvet202022206.

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The relationship between humans and elephants dates back thousands of years. Throughout this history, much has been learned about the management of these giants, especially in terms of behavior, health, nutrition, among other basic needs that contribute to their well-being. This made it go from being a simple tool to part of a working team. One of the main problems that can be seen in elephants kept in captivity are the skin lesions caused during their daily activities. Today, there are several works and manuals that describe the steps to follow when handling a skin wound, especially with rega

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Dallimore, Audrey, Randolph J. Enkin, Reinhard Pienitz, et al. "Postglacial evolution of a Pacific coastal fjord in British Columbia, Canada: interactions of sea-level change, crustal response, and environmental fluctuations — results from MONA core MD02-2494This article is one of a series of papers published in this Special Issue on the theme Polar Climate Stability Network." Canadian Journal of Earth Sciences 45, no. 11 (2008): 1345–62. http://dx.doi.org/10.1139/e08-042.

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The sedimentary record in a 40.9 m giant (Calypso) piston core (MD02-2494) raised from the inner basin within Effingham Inlet, British Columbia, Canada, during the 2002 Marges Ouest Nord Américaines (MONA) campaign, spans from 14 360 14C years BP (17 300 calibrated calendar (cal.) years BP) to about nine centuries before present. The core archives changes in sedimentation and sea level immediately following deglaciation of the Late Wisconsin Fraser Glaciation, which peaked about 15 000 14C years BP. The presence of the Mazama Ash in the core anchors a detailed chronology based on 49 radiocarbo

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Tang, Huaineng, Haoran Ye, Wenqing Yang, et al. "Air-sea CO2 exchange in the western Pacific influenced by monsoon and giant diatom (Ethmodiscus rex) blooms during the last deglaciation." Journal of Asian Earth Sciences 276 (December 2024): 106335. http://dx.doi.org/10.1016/j.jseaes.2024.106335.

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Luo, Min, Thomas J. Algeo, Linying Chen, Xuefa Shi, and Duofu Chen. "Role of dust fluxes in stimulating Ethmodiscus rex giant diatom blooms in the northwestern tropical Pacific during the Last Glacial Maximum." Palaeogeography, Palaeoclimatology, Palaeoecology 511 (December 2018): 319–31. http://dx.doi.org/10.1016/j.palaeo.2018.08.017.

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Villareal, Tracy A., R. M. L. McKay, M. M. D. Al-Rshaidat, R. Boyanapalli, and R. M. Sherrell. "Compositional and fluorescence characteristics of the giant diatom Ethmodiscus along a 3000km transect (28°N) in the central North Pacific gyre." Deep Sea Research Part I: Oceanographic Research Papers 54, no. 8 (2007): 1273–88. http://dx.doi.org/10.1016/j.dsr.2007.04.018.

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Nishikawa, Tetsuya, Kazutaka Miyahara, and Satoshi Nagai. "Effects of Temperature and Salinity on the Growth of the Giant Diatom Coscinodiscus wailesii Isolated from Harima-Nada, Seto Inland Sea, Japan." NIPPON SUISAN GAKKAISHI 66, no. 6 (2000): 993–98. http://dx.doi.org/10.2331/suisan.66.993.

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Tang, Huaineng, Haoran Ye, Wenqing Yang, et al. "East Asian Winter Monsoon and enhanced stratification in the western Pacific promoted giant marine diatom (Ethmodiscus rex) blooms during the last deglaciation." Quaternary Science Reviews 336 (July 2024): 108798. http://dx.doi.org/10.1016/j.quascirev.2024.108798.

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Villareal, Tracy A., R. M. L. McKay, M. M. D. Al-Rshaidat, R. Boyanapalli, and R. M. Sherrell. "Corrigendum to “Compositional and fluorescence characteristics of the giant diatom Ethmodiscus along a 3000 km transect (28°N) in the central North Pacific gyre”." Deep Sea Research Part I: Oceanographic Research Papers 54, no. 10 (2007): 1852. http://dx.doi.org/10.1016/j.dsr.2007.08.003.

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Jésior, Jean-Claude, Roger Vuong, and Henri Chanzy. "An Electron Diffraction Study on Litnerized Potato Starch." Proceedings, annual meeting, Electron Microscopy Society of America 48, no. 1 (1990): 580–81. http://dx.doi.org/10.1017/s042482010018166x.

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Starch is arranged in a crystalline manner within its storage granules and should thus give sharp X-ray diagrams. Unfortunately most of the common starch granules have sizes between 1 and 100μm, making them too small for an X-ray study on individual grains. There is only one instance where an oriented X-ray diagram could be obtained on one sector of an individual giant starch granule. Despite their small size, starch granules are still too thick to be studied by electron diffraction with a transmission electron microscope. The only reported study on starch ultrastructure using electron diffrac

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Koelemay, L. A., та L. M. Ziurys. "Elusive Iron: Detection of the FeC Radical (X ³Δ_i) in the Envelope of IRC+10216". Astrophysical Journal Letters 958, № 1 (2023): L6. http://dx.doi.org/10.3847/2041-8213/ad0899.

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Abstract A new interstellar molecule, FeC (X 3Δ i ), has been identified in the circumstellar envelope of the carbon-rich asymptotic giant branch star IRC+10216. FeC is the second iron-bearing species conclusively observed in the interstellar medium, in addition to FeCN, also found in IRC+10216. The J = 4 → 3, 5 → 4, and 6 → 5 rotational transitions of this free radical near 160, 201, and 241 GHz, respectively, were detected in the lowest spin–orbit ladder, Ω = 3, using the Submillimeter Telescope of the Arizona Radio Observatory (ARO) for the 1 mm lines and the ARO 12 m at 2 mm. Because the g

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De Deckker, Patrick, and Franz X. Gingele. "On the occurrence of the giant diatom Ethmodiscus rex in an 80-ka record from a deep-sea core, southeast of Sumatra, Indonesia: implications for tropical palaeoceanography." Marine Geology 183, no. 1-4 (2002): 31–43. http://dx.doi.org/10.1016/s0025-3227(01)00252-3.

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Shephard, Michael J., and Michael N. Paddon-Row. "The porphyrin-C60 non-bonded interaction: an ab initio MO and DFT study." Journal of Porphyrins and Phthalocyanines 06, no. 12 (2002): 783–94. http://dx.doi.org/10.1142/s1088424602000907.

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The non-bonded interactions between a porphyrin molecule and a C 60 molecule, in the gas-phase, has been systematically investigated using various theoretical models. These are: (1) wavefunction-based methods, Hartree-Fock SCF (HF), second-order Møller-Plesset (MP2) theory, and the localized MP2 (LMP2) theory using the diatomics in molecules (DIM-LMP2) and triatomics in molecules (TRIM-LMP2) methods; (2) density functional theory (DFT), using non-local (BLYP, PW91), hybrid (B3LYP), and local (SVWN) functionals. Of the HF and DFT methods examined, corrected for BSSE using the counterpoise (CP)

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Krizan, K. E., D. L. Zeiller, A. U. Dogan, J. E. Laffoon, and S. Madison. "Correlative electron microscopic study of metallic particle contaminants in tissue adjacent to dental implants: Part II. 12 months." Proceedings, annual meeting, Electron Microscopy Society of America 47 (August 6, 1989): 1088–89. http://dx.doi.org/10.1017/s0424820100157425.

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This research is a follow up of the study reported last year Part I-3 months. The purpose of this study Part II-12 months is to evaluate titanium (Ti) and vitallium (Vi, an alloy composed of Co, Cr, Ni, and Fe) endodontic endosseous implants (EEI) and the tissue surrounding them, one year after insertion. In humans this type of implant is sometimes used to stabilize compromised teeth. An adult primate model was employed using comparable techniques during implantation. Various clinical and research methodologies were used to investigate EEI and adjacent tissue in subapical bone of the maxillae

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Kemp, A. E. S., R. B. Pierce, and I. Grigorov. "Production of giant marine diatoms and their export at oceanic frontal zones: Implications for Si and C flux from stratified oceans." August 1, 2006. https://doi.org/10.1029/2006GB002698.

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From a synthesis of recent oceanic observations and paleo-data it is evident that certain species of giant diatoms including Rhizosolenia spp. Thalassiothrix spp. and Ethmodiscus rex may become concentrated at oceanic frontal zones and subsequently form episodes of mass flux to the sediment. Within the nutrient bearing waters advecting towards frontal boundaries, these species are generally not dominant, but they appear selectively segregated at fronts, and thus may dominate the export flux. Ancient Thalassiothrix diatom mat deposits in the eastern equatorial Pacific and beneath the Polar Fron

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Closset, Ivia, and Lucie Cassarino. "The Antarctic Silicon Trap." Frontiers for Young Minds 11 (December 11, 2023). http://dx.doi.org/10.3389/frym.2023.1180915.

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The Southern Ocean, the ocean encircling Antarctica, has been described by explorers as cold, empty, and dangerous. Despite this, it is a paradise for tiny algae called diatoms that are crucial players in the regulation of our climate. Why are these tiny organisms so happy in this cold and far away ocean? Diatoms have a solid shell made of a glass-like material called silica, so they need to find silicon in surface waters to build it. The Southern Ocean is the perfect place for diatoms because it is full of silicon compared to the other oceans. This is due to a special phenomenon called the si

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"Phytoplankton Condition within the Kuybyshev Reservoir Non-metallic Construction Materials Deposit Zone and Assessment of Water Quality." Water sector of Russia: problems, technologies, management, no. 1, 2016 (2016): 31. http://dx.doi.org/10.35567/1999-4508-2016-1-3.

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Analysis results of the spring phytoplankton development quantitative indicators for the Kuybyshev Reservoir within the impact zone of three non-metallic construction materials operated deposits, namely Krasnozarinskoye, Sviyazhskie Ostrova, and Bakhchi-Saray, have been presented. The water body current trophic status, blooming intensity and water quality class have been determined by the investigation outcomes. The total species diversity level has been investigated in accordance with the commonly accepted methods at each part of the reservoir and the system ecological sustainability degree h

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