1,723,582 research outputs found
Pseudanabaena sp. PCC 7904
No full textProtein sequences of Pseudanabaena sp. PCC 7904. Annotated with Prokka (http://www.vicbioinformatics.com/software.prokka.shtml)
Wood, A M, 2/7904
No full textThis record was harvested from a previous catalogue system and will be withdrawn in 2025. Information in this record may be superseded or incomplete. Visit this record in UMA's new catalogue at: https://archives.library.unimelb.edu.au/nodes/view/428437Surname: Wood. Given Name(s) or Initials: A M. Military Service Number or Last Known Location: 2/7904. Prisoner of War Enquiry Card Index Number: K.621. Division Enquiry: NSW. Rank: PTE. Unit: 8 Pl. C Coy 1 RAR BAPO 3327193
Item: [2016.0049.60699] "Wood, A M, 2/7904
California Poll: 7904 -- November 12-19, 1979
No full textThe Field Poll, established in 1945 as The California Poll by Mervin Field, has operated continuously as an independent, non-partisan, media-sponsored public opinion news service. Each year the Field Polls cover a wide range of political and social topics examining California public opinion. Continuing measures are made of voter support for leading political figures vying for major state and federal offices, job ratings of important political figures and reactions to significant political events. Voter awareness, understanding and predispositions of major campaign issues and salient statewide ballot propositions are also tracked over time. For poll 7904 N=1014
[Chicago & North Western Railway Co., Engine Drawing Card, Sketch No. 7904]
No full textThis engine drawing card was created for Chicago and North Western Railway Company, Class 14-48 1/4 E. Section J-14 1/4 E. Sketch 7904. Copy Spec. Ry. Co's Spec
Mineralogy and petrology of Belgica-7904: A new kind of carbonaceous chondrite from Antarctica
Full text linkP(論文)A mineralogical and petrological study of Belgica-7904 (B-7904) shows that it can be classified into the CM group. B-7904 has a variety of chondrules and aggregates, where pyroxenes and mesostasis glass are completely replaced by phyllosilicates, but olivine remains little altered. It has a high abundance of troilite; most occur in submicron to micron grains dispersed in the matrix. Minor taenite occurs, but magnetite is rare and tochilinite is absent. The phyllosilicates have relatively high Na contents and lower (Mg+Fe)/(Si+Al) ratios than serpentine; thus, they may be intergrowths of serpentine and a smectite-like phyllosilicate. Microprobe analyses of the phyllosilicates show high analytical totals relative to ordinary phyllosilicates, being consistent with the idea that they were dehydrated by heating. The fine troilite grains in the matrix may have been transformed from a thermally labile phase such as tochilinite during thermal metamorphism. The opaque mineral assemblage suggests that the thermal metamorphism occurred in a reduced condition. B-7904 and Y-86720 are mineralogically similar, although the former is less affected by aqueous alteration than the latter. They were probably derived from similar precursors and experienced aqueous alteration and thermal metamorphism in a common environment. These meteorites and ordinary CM chondrites apparently experienced distinct alteration histories, suggesting that they came from different regions in a parent body or different parent bodies.departmental bulletin pape
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
The Medical Center’S Ibm 7904 Mainframe Computer System
No full textMEDLINE, the Medical Literature Analysis and Retrieval System Online, was implemented in 1964 by the National Library of Medicine as MEDLARS[6] (not online, of course). It was the first large-scale, computer-based, retrospective search service available to the public. The Medical Center’s IBM 7904 mainframe computer system, circa 1969. Find out more Centennial Photo Display: 1960’s, Part Ihttps://digitalcommons.library.tmc.edu/exhibit_construction/1186/thumbnail.jp
Mineralogy and petrology of an unusual Belgica-7904 carbonaceouschondrite: Genetic relationships among the components
Full text linkP(論文)Belgica-7904 (B-7904) carbonaceous chondrite consists of abundant chondrules, various clasts, isolated minerals, and a dehydrated phyllosilicate matrix. Chondrules are divided into magnesian and ferroan types. Magnesian type has forsterite phenocryst, often with pyroxene, plagioclase, and unusual Cr-rich ovoid, which set in a dehydrated phyllosilicate groundmass. Kamacite is abundantly included in the forsterite phenocrysts, and is rarely associated with schreibersite. Ferroan type consists mainly of ferroan olivine phenocryst and dehydrated phyllosilicate groundmass with phosphate, instead of schreibersite in magnesian type. Clasts in B-7904 are classified into seven types. These include matrix-like clasts, phyllosilicate-rich clasts, hortonolite-rich clasts (aggregates of ferroan olivine and opaque minerals), Mn-rich olivine-bearing clasts containing schreibersite, Mn-rich forsterite, and Mn-rich chromite, forsterite-spinel clasts like amoeboid olivine inclusions (AOI's) in C3 chondrites, kamacite-rich clasts, and sulfide-rich clasts consistsing of troilite, pentlandite, taenite, and Co-rich metal. Mineralogical study suggests that magnesian chondrules, phyllosilicate-rich clasts, and Mn-rich olivine-bearing clasts formed under reducing conditions, whereas ferroan chondrules, hortonolite-rich clasts, and the matrix originated under oxidizing conditions. Thus, the components of B-7904 originated in different reservoirs with contrasting fO_2 and fS_2 in the solar nebula, and were later mixed. Glass inclusion in chondrules, which occur in olivine phenocrysts and dehydrated phyllosilicate groundmasses, contains CaO, whereas phyllosilicates in the groundmass are nearly free from CaO. Thus, CaO was mainly lost from these chondrules during hydrous alteration, although some CaO remains as abundant phosphate in ferroan chondrules. All of the CaO lost from the chondrules and clasts appears to have been concentrated in the matrix as Ca-carbonates. The oxidation reaction to form magnetite and magnesiowustite from kamacite also took place in a magnesian chondrule at about 660K and 10^ bars oxygen partial pressure, which is much higher than an oxygen partial pressure (10^ bars) of the canonical solar gas with a total gas pressure of 10^ bars at 600K. This suggests that magnesian chondrules were oxidized by a nebular gas of non-solar composition, probably after mixing with ferroan chondrules. All phyllosilicates in B-7904 were dehydrated by intense heating, and the unequilibrated mineral assemblages and the magmatic temperatures retained in some of the chondrules suggest that the heating took place for a short duration, probably by shock heating.departmental bulletin pape
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