351 research outputs found
Structure and stability of rapidly quenched Al86Cr14−xFex alloys
No full textPT: J; CR: AUDIER M, 1987, 6TH INT C RAP QUENCH BANCEL PA, 1985, PHYS REV LETT, V54, P2422 BANCEL PA, 1986, PHYS REV B, V33, P7917 BOSWELL PG, 1980, J THERM ANAL, V18, P353 DINI K, 1984, J PHYS F MET PHYS, V14, P2009 DONALD IW, 1978, 3RD P INT C RAP QUEN, P273 DUNLAP RA, 1985, CAN J PHYS, V63, P1267 DUNLAP RA, 1985, J PHYS F MET PHYS, V15, P11 DUNLAP RA, 1986, J MATER RES, V1, P415 DUNLAP RA, 1986, J PHYS F MET PHYS, V16, P1247 DUNLAP RA, 1987, UNPUB J PHYS F HIRAGA K, 1987, JEOL NEWS E, V25, P8 INOUE A, 1986, METALL TRANS A, V17, P1657 INOUE A, 1987, J MATER SCI, V22, P1758 KISSINGER HE, 1957, ANAL CHEM, V29, P1702 SHECHTMAN D, 1984, PHYS REV LETT, V53, P1951 SHURER PJ, 1986, SOLID STATE COMMUN, V59, P619 WALTER JL, 1981, MATER SCI ENG, V50, P137; NR: 18; TC: 11; J9: J MATER SCI; PG: 5; GA: AP509Source type: Electronic(1
A positron annihilation study of crystalline, quasicrystalline and amorphous Al-Cu-T (T=Fe,V) alloys
No full textPT: J; CR: BANCEL PA, 1989, PHYS REV LETT, V63, P2741 BETTERTON JO, 1952, J I MET, V80, P459 BRANDT W, 1967, POSITRON ANNIHILATIO, P155 CALVAYRAC Y, 1990, J PHYS-PARIS, V51, P417 CHIDAMBARAM R, 1990, B AM PHYS SOC, V35, P331 CHIDAMBARAM R, 1990, J PHYS-CONDENS MAT, V2, P251 DUNLAP RA, 1986, J PHYS F MET PHYS, V16, P11 DUNLAP RA, 1986, J PHYS F MET PHYS, V16, P1247 DUNLAP RA, 1987, J PHYS F MET PHYS, V17, L39 DUNLAP RA, 1988, CAN J PHYS, V66, P476 GURYAN CA, 1989, PHYS REV LETT, V62, P2409 HEINEY PA, 1987, SCIENCE, V238, P660 HIRAGA K, 1988, JPN J APPL PHYS, V27, L951 HUMEROTHERY W, 1962, STRUCTURE METALS ALL JANOT C, 1988, J NONCRYSTALLINE SOL, V106, P193 JANOT C, 1989, J PHYS-CONDENS MAT, V1, P1029 JANSSEN T, 1986, ACTA CRYSTALLOGR A, V42, P261 KIZUKA T, 1989, PHYS REV B, V40, P796 LAWTHER DW, 1989, CAN J PHYS, V67, P463 PEARSON WB, 1972, CRYSTAL CHEM PHYSICS, CH4 SANYAL MK, 1989, J PHYS-CONDENS MATT, V1, P3733 SCHULTZ PJ, 1988, REV MOD PHYS, V60, P701 SHECHTMAN D, 1984, PHYS REV LETT, V53, P1951 SIEGEL RW, 1980, ANNU REV MATER SCI, V10, P393 TSAI AP, 1987, JPN J APPL PHYS, V26, P1505 VAKS VG, 1988, PHYS LETT A, V132, P131 WAGNER JL, 1988, PHYS REV B, V38, P7436 WAGNER JL, 1989, PHYS REV B, V39, P8091; NR: 28; TC: 10; J9: J PHYS-CONDENS MATTER; PG: 6; GA: DN624Source type: Electronic(1
The story of Waitstill Baxter,
No full textMode of access: Internet.OSU's c.2 part of Grosset & Dunlap Collection.OSU's copy 2 inscribed by author
57Fe Mössbauer-effect studies of quadrupole splitting distributions in icosahedral Al-TM-Fe quasicrystals
No full textPT: J; CR: BERGER C, 1988, MATER SCI ENG, V99, P353 CZJZEK G, 1982, PHYS REV B, V25, P4908 DUNLAP RA, 1986, HYPERFINE INTERACT, V28, P963 DUNLAP RA, 1987, J PHYS F MET PHYS, V17, L39 DUNLAP RA, 1988, J PHYS F MET PHYS, V18, P1329 DUNLAP RA, 1988, PHYS REV B, V38, P3649 EDAGAWA K, 1987, J PHYS SOC JPN, V56, P2629 EIBSCHUTZ M, 1986, PHYS REV LETT, V56, P169 EIBSCHUTZ M, 1987, PHYS REV LETT, V59, P2443 HUI M, 1988, SOLID STATE COMMUN, V68, P813 HUMEROTHERY W, 1926, J I MET, V35, P295 LAWTHER DW, 1989, CAN J PHYS, V67, P463 LAWTHER DW, 1989, IN PRESS J MATER SCI LECAER G, 1979, J PHYS E SCI INSTRUM, V12, P1083 SCHURER PJ, 1986, SOLID STATE COMMUN, V59, P619 SCHURER PJ, 1988, PHYS REV B, V37, P507 SRINIVAS V, 1989, IN PRESS PHIL MAG B STADNIK ZM, 1988, PHYS REV B, V38, P10447 STROUD D, 1971, J PHYS F, V1, P113 SWARTZENDRUBER LJ, 1985, PHYS REV B, V32, P1383 TSAI AP, 1989, JPN J APPL PHYS, V27, L5 WERKMAN RD, 1989, HYPERFINE INTERACT, V45, P409 WINDOW B, 1971, J PHYS E, V4, P401; NR: 23; TC: 8; J9: HYPERFINE INTERACTIONS; PG: 6; GA: EB069Source type: Electronic(1
In situ 64Cu Doppler-broadening positron-annihilation methods for elevated temperature study of defect formation in metals formation in metals
No full textDoppler-broadening positron-annihilation-spectroscopy experiment that utilizes an in situ Cu-64 source for the study of Cu and Cu-containing materials is described. This technique is particularly useful for the investigation of defect structure at elevated temperatures, and the present instrumentation provides reliable results up to about 1000 degrees C. The method described is applicable to Cu-containing samples with as little as about 0.1 at.% Cu. Results from measurements on a single crystal of elemental Cu are compared with literature results obtained using other positron-annihilation methods and electrical-resistivity studies.PT: J; CR: BERGER AS, 1979, J PHYS F MET PHYS, V9, P1023 CAMPBELL JL, 1977, APPL PHYS, V13, P365 DANNEFAER S, 1975, NUCL INSTRUM METHODS, V131, P119 DUNLAP RA, 1988, CAN J PHYS, V66, P476 DUNLAP RA, 1988, EXPT PHYSICS MODERN FLUSS MJ, 1980, J PHYS F MET PHYS, V10, P1763 FUKUSHIMA H, 1976, J PHYS F MET PHYS, V6, P677 JACKMAN TE, 1974, APPL PHYS, V5, P259 LAWTHER DW, 1990, J PHYS-CONDENS MAT, V2, P6239 LAWTHER DW, 1993, J NON-CRYST SOLIDS, V153, P611 LAWTHER DW, 1993, KEY ENG MATER, V81, P95 LAWTHER DW, 1994, PHYS REV B, V49, P3183 LICHTENBERGER PC, 1975, THESIS U WATERLOO WA MACKENZIE IK, 1967, PHYS REV LETT, V19, P946 MACKENZIE IK, 1970, PHYS LETT A, V33, P279 MACKENZIE IK, 1980, NUOVO CIMENTO B, V58, P162 MACKENZIE IK, 1983, POSITRON SOLID STATE, P196 MCKEE BTA, 1967, THESIS DALHOUSIE U H RICEEVANS P, 1976, J PHYS F MET PHYS, V6, P1079 RYAN DE, 1987, ANAL CHIM ACTA, V200, P89 SCHAEFER HE, 1987, VACANCIES INTERSTIT, P117 SCHULTZ PJ, 1981, CAN J PHYS, V59, P325 SCHULTZ PJ, 1988, REV MOD PHYS, V60, P701 SEGERS D, 1988, PHYS LETT A, V133, P455 SIEGEL RW, 1980, ANNU REV MATER SCI, V10, P393; NR: 25; TC: 0; J9: CAN J PHYS; PG: 7; GA: RD935Source type: Electronic(1
Genomics of elite sporting performance: what little we know and necessary advances
No full textNumerous reports of genetic associations with performance- and injury-related phenotypes have been published over the past three decades; these studies have employed primarily the candidate gene approach to identify genes that associate with elite performance or with variation in performance-and/or injury-related traits. Although generally with small effect sizes and heavily prone to type I statistic error, the number of candidate genetic variants that can potentially explain elite athletic status, injury predisposition, or indeed response to training will be much higher than that examined by numerous biotechnology companies. Priority should therefore be given to applying whole genome technology to sufficiently large study cohorts of world-class athletes with adequately measured phenotypes where it is possible to increase statistical power. Some of the elite athlete cohorts described in the literature might suffice, and collectively, these cohorts could be used for replication purposes. Genome-wide association studies are ongoing in some of these cohorts (i.e., Genathlete, Russian, Spanish, Japanese, United States, and Jamaican cohorts), and preliminary findings include the identification of one single nucleotide polymorphism (SNP; among more than a million SNPs analyzed) that associates with sprint performance in Japanese, American (i.e., African American), and Jamaican cohorts with a combined effect size of ~2.6 (P-value <5×10(-7)) and good concordance with endurance performance between select cohorts. Further replications of these signals in independent cohorts will be required, and any replicated SNPs will be taken forward for fine-mapping/targeted resequencing and functional studies to uncover the underlying biological mechanisms. Only after this lengthy and costly process will the true potential of genetic testing in sport be determined
Neurospora Crassa Clock-Controlled Genes are Regulated at the Level of Transcription.
No full textAlthough an extensive number of biological processes are under the daily control of the circadian biological clock, little is known about how the clock maintains its regulatory networks within a cell. An important aspect of this temporal control is the daily control of gene expression. Previously we identified two morning-specific genes that are regulated by the clock through daily control of gene expression (J. Loros, S. Denome, and J.C. Dunlap, Science 243:385-388, 1989). We have now introduced a method for transcriptional analysis in Neurospora crassa and used this nuclear run-on procedure to show that regulation of mRNA abundance for these two morning-specific genes occurs at the level of transcription. This transcriptional regulation by the circadian clock provides a basis for isolating circadian rhythm mutants
The common lot /
No full textMode of access: Internet.OSU's c.2 part of Grosset & Dunlap Collection.OSU's copy 2 bound in red cloth.OSU's copy 2: "Set up and electrotyped. Published September 1904. Reprinted October, November twice, 1904; January, February, March, 1905; June 1906.
Statistical methods for pathway analysis of genome-wide data for association with complex genetic traits
No full textA number of statistical methods have been developed to test for associations between pathways (collections of genes related biologically) and complex genetic traits. Pathway analysis methods were originally developed for analyzing gene expression data, but recently methods have been developed to perform pathway analysis on genome-wide association study (GWAS) data. The purpose of this review is to give an overview of these methods, enabling the reader to gain an understanding of what pathway analysis involves, and to select the method most suited to their purposes. This review describes the various types of statistical methods for pathway analysis, detailing the strengths and weaknesses of each. Factors influencing the power of pathway analyses, such as gene coverage and choice of pathways to analyze, are discussed, as well as various unresolved statistical issues. Finally, a list of computer programs for performing pathway analysis on genome-wide association data is provided
Phylogeny of Tec Family Kinases: Identification of a Pre-Metazoan Origin of Btk, Bmx, Itk, Tec, Txk and the Btk Regulator SH3BP5
No full textIt is generally considered mammals and birds have five Tec family kinases
(TFKs): Btk, Bmx (also known as Etk), Itk, Tec, and Txk (also known as Rlk).
Here, we discuss the domains and their functions and regulation in TFKs. Over
the last few years, a large number of genomes from various phyla have been
sequenced making it possible to study evolutionary relationships at the molecular
and sequence level. Using bioinformatics tools, we for the first time demonstrate
that a TFK ancestor exists in the unicellular choanoflagellate Monosiga brevicollis,
which is the closest known relative to metazoans with a sequenced genome. The
analysis of the genomes for sponges, insects, hagfish, and frogs suggests that these
species encode a single TFK. The insect form has a divergent and unique
N-terminal region. Duplications generating the five members took place prior
to the emergence of vertebrates. Fishes have two or three forms and the platypus,
Ornithorhynchus anatinus, has four (lacks Txk). Thus, not all mammals have all
five TFKs. The single identified TFK in frogs is an ortholog of Tec. Bmx seems to
be unique to mammals and birds. SH3BP5 is a negative regulator of Btk. It is
conserved in choanoflagellates and interestingly exists also in nematodes, which
do not express TFKs, suggesting a broader function in addition to Btk regulation.
The related SH3BP5-like protein is not found in Nematodes
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