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  • 1
    Publication Date: 2002-05-04
    Description: Intricate patterns of wave propagation are exhibited in a chemical reaction-diffusion system with spatiotemporal feedback. Wave behavior is controlled by feedback-regulated excitability gradients that guide propagation in specified directions. Waves interacting with boundaries and with other waves are observed when interaction terms are incorporated into the control algorithm. Spatiotemporal feedback offers wide flexibility for designing and controlling wave behavior in excitable media.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sakurai, Tatsunari -- Mihaliuk, Eugene -- Chirila, Florin -- Showalter, Kenneth -- New York, N.Y. -- Science. 2002 Jun 14;296(5575):2009-12. Epub 2002 May 2.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Chemistry, West Virginia University, Morgantown, WV 26506, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11988535" target="_blank"〉PubMed〈/a〉
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 2
    Publication Date: 2002-03-23
    Description: Full-length complementary DNAs (cDNAs) are essential for the correct annotation of genomic sequences and for the functional analysis of genes and their products. We isolated 155,144 RIKEN Arabidopsis full-length (RAFL) cDNA clones. The 3'-end expressed sequence tags (ESTs) of 155,144 RAFL cDNAs were clustered into 14,668 nonredundant cDNA groups, about 60% of predicted genes. We also obtained 5' ESTs from 14,034 nonredundant cDNA groups and constructed a promoter database. The sequence database of the RAFL cDNAs is useful for promoter analysis and correct annotation of predicted transcription units and gene products. Furthermore, the full-length cDNAs are useful resources for analyses of the expression profiles, functions, and structures of plant proteins.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Seki, Motoaki -- Narusaka, Mari -- Kamiya, Asako -- Ishida, Junko -- Satou, Masakazu -- Sakurai, Tetsuya -- Nakajima, Maiko -- Enju, Akiko -- Akiyama, Kenji -- Oono, Youko -- Muramatsu, Masami -- Hayashizaki, Yoshihide -- Kawai, Jun -- Carninci, Piero -- Itoh, Masayoshi -- Ishii, Yoshiyuki -- Arakawa, Takahiro -- Shibata, Kazuhiro -- Shinagawa, Akira -- Shinozaki, Kazuo -- New York, N.Y. -- Science. 2002 Apr 5;296(5565):141-5. Epub 2002 Mar 21.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Plant Mutation Exploration Team, Plant Functional Genomics Research Group, RIKEN Genomic Sciences Center (GSC), 3-1-1 Koyadai, Tsukuba 305-0074, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11910074" target="_blank"〉PubMed〈/a〉
    Keywords: Arabidopsis/*genetics/metabolism ; Arabidopsis Proteins/genetics/metabolism ; Chromosome Mapping ; Cloning, Molecular ; Computational Biology ; *DNA, Complementary/isolation & purification ; DNA, Plant/genetics ; Databases, Nucleic Acid ; *Expressed Sequence Tags ; Gene Expression ; Gene Library ; *Genes, Plant ; Genome, Plant ; Promoter Regions, Genetic ; RNA, Messenger/genetics ; Sequence Analysis, DNA
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 3
    Publication Date: 2003-11-01
    Description: Functional analysis of a genome requires accurate gene structure information and a complete gene inventory. A dual experimental strategy was used to verify and correct the initial genome sequence annotation of the reference plant Arabidopsis. Sequencing full-length cDNAs and hybridizations using RNA populations from various tissues to a set of high-density oligonucleotide arrays spanning the entire genome allowed the accurate annotation of thousands of gene structures. We identified 5817 novel transcription units, including a substantial amount of antisense gene transcription, and 40 genes within the genetically defined centromeres. This approach resulted in completion of approximately 30% of the Arabidopsis ORFeome as a resource for global functional experimentation of the plant proteome.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yamada, Kayoko -- Lim, Jun -- Dale, Joseph M -- Chen, Huaming -- Shinn, Paul -- Palm, Curtis J -- Southwick, Audrey M -- Wu, Hank C -- Kim, Christopher -- Nguyen, Michelle -- Pham, Paul -- Cheuk, Rosa -- Karlin-Newmann, George -- Liu, Shirley X -- Lam, Bao -- Sakano, Hitomi -- Wu, Troy -- Yu, Guixia -- Miranda, Molly -- Quach, Hong L -- Tripp, Matthew -- Chang, Charlie H -- Lee, Jeong M -- Toriumi, Mitsue -- Chan, Marie M H -- Tang, Carolyn C -- Onodera, Courtney S -- Deng, Justine M -- Akiyama, Kenji -- Ansari, Yasser -- Arakawa, Takahiro -- Banh, Jenny -- Banno, Fumika -- Bowser, Leah -- Brooks, Shelise -- Carninci, Piero -- Chao, Qimin -- Choy, Nathan -- Enju, Akiko -- Goldsmith, Andrew D -- Gurjal, Mani -- Hansen, Nancy F -- Hayashizaki, Yoshihide -- Johnson-Hopson, Chanda -- Hsuan, Vickie W -- Iida, Kei -- Karnes, Meagan -- Khan, Shehnaz -- Koesema, Eric -- Ishida, Junko -- Jiang, Paul X -- Jones, Ted -- Kawai, Jun -- Kamiya, Asako -- Meyers, Cristina -- Nakajima, Maiko -- Narusaka, Mari -- Seki, Motoaki -- Sakurai, Tetsuya -- Satou, Masakazu -- Tamse, Racquel -- Vaysberg, Maria -- Wallender, Erika K -- Wong, Cecilia -- Yamamura, Yuki -- Yuan, Shiaulou -- Shinozaki, Kazuo -- Davis, Ronald W -- Theologis, Athanasios -- Ecker, Joseph R -- New York, N.Y. -- Science. 2003 Oct 31;302(5646):842-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Plant Gene Expression Center, Albany, CA 94710, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14593172" target="_blank"〉PubMed〈/a〉
    Keywords: Arabidopsis/*genetics ; Chromosome Mapping ; Chromosomes, Plant/genetics ; Cloning, Molecular ; Computational Biology ; DNA, Complementary/genetics ; DNA, Intergenic ; Expressed Sequence Tags ; Gene Expression Profiling ; Genes, Plant ; *Genome, Plant ; Genomics ; Nucleic Acid Hybridization ; Oligonucleotide Array Sequence Analysis ; Open Reading Frames ; RNA, Messenger/*genetics ; RNA, Plant/*genetics ; Reverse Transcriptase Polymerase Chain Reaction ; *Transcription, Genetic
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 4
    Electronic Resource
    Electronic Resource
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 91 (2002), S. 4806-4810 
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The density of Ar 1s5 metastable excited atoms in the vicinity of a surface in barrier and display panel discharges was measured by the laser-induced evanescent-mode fluorescence technique. The temporal and spatial distributions of excited atoms were also measured by conventional spontaneous emission and laser absorption methods. From these measurements at various pressures, the behavior of the metastable atoms is clarified and the flux of the metastable atoms on the barrier surface is estimated. © 2002 American Institute of Physics.
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  • 5
    Electronic Resource
    Electronic Resource
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 76 (2000), S. 967-969 
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: An icosahedral (I) quasicrystalline phase with a grain size below 40 nm was formed as a metastable phase in crystallization of the bulk glassy Zr65Al7.5Cu17.5−xNi10Mx (M=Ag, Pd, Au, or Pt; x=5 and 10 at %) alloys. The volume fraction (Vf) of the I phase is about 85% for the 5% M alloy and nearly 100% for the 10% M alloy. The I phase changes to Zr2Cu+Zr2Ni+Zr2Al3 in a fully annealed state. Compressive fracture strength (σc,f) and fracture elongation (εc,f) of the 10% Pd cylinder with a diameter of 2 mm are respectively 1640 MPa and 2.2% for the glassy phase and increase to 1830 MPa and 3.1% for the I phase. The increase in σc,f is due to the suppression effect of the I particles against the shear deformation of the intergranular glassy phase, and the increase in εc,f results from the localization effect of deformation into the glassy layer. The precipitation of the I phase implies that the glassy alloys include randomly oriented I configurations. The present work shows promise for the new class of high-strength nanoquasicrystalline materials. © 2000 American Institute of Physics.
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  • 6
    ISSN: 1090-6509
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Scanning tunneling microscopy and reflection high-energy electron diffraction under ultrahigh vacuum conditions were used to make an in situ study of atomic structures at the surface of an InAs/GaAs heterostructure grown by molecular-beam epitaxy. It was observed that the deposition of approximately 0.3 ML of indium on an arsenic-enriched GaAs(001)-2 × 4 surface leads to the formation of the 4 × 2 phase while the deposition of 0.6 ML indium leads to the appearance of a new 6 × 2 reconstruction. It is shown that layer-by-layer two-dimensional epitaxial growth of InAs on GaAs(001) as far as 13 monolayers can only be achieved if the growth front reproduces the 4 × 2 or 6 × 2 symmetry of the substrate and models of 4 × 2 and 6 × 2 reconstructions are proposed. Atomic-resolution images of faceted planes on the surface of three-dimensional islands in an InAs/GaAs(001) system were obtained for the first time and structural models of these were developed.
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  • 7
    ISSN: 1439-863X
    Keywords: Key words Major ions ; Stream waters ; Water-rock interaction ; Geology ; Mapping ; Median Tectonic Line ; Nagano Prefecture
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Major ion concentrations were determined for a large number of stream water samples collected from the mountainous area around the Median Tectonic Line (MTL) in the mid to southern part of Nagano Prefecture, Japan. The MTL, a major fault in the accretionary sedimentary complex to Japan Arc, extending linearly in the east–west direction in southwest Japan, bends in this area to south–north along the Akaishi Mountain chain. To the east of the MTL are, in order, Jurassic metamorphic rocks, including black/green schists and ultra-basic serpentinite (Sambagawa-Mikabu Belt); Jurassic mudstone with voluminous chert and calcite (Chichibu Belt); and Cretaceous sandstone (Shimanto Belt). On the other hand, on the west side of the MTL, Cretaceous granitic rocks (including tonalite and quartzdiorite) intruded and significantly metamorphosed the Jurassic sedimentary systems (Ryoke-Belt). In this area, more than 200 water samples were collected from small streams. Ion concentrations were analyzed by ion chromatography, whereby higher ion concentrations relatively rich in Mg2+ and Ca2+ and lower concentrations relatively rich in Na+ were obvious for the streams in Sambagawa-Mikabu, Chichibu, and Ryoke Belts, respectively. These tendencies could be explained by whole rock analysis on XRF (X-ray fluorescence spectrometry) as well as by a preliminary leaching experiment of the powdered rock samples with water. The results strongly suggested that the analytical data of the major ions in the stream waters might be compiled into a hydrogeochemical map, corresponding to the geological map.
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  • 8
    ISSN: 1435-232X
    Keywords: Key words Prostate-specific antigen gene ; Polymorphism ; Promoter ; Breast cancer ; Japanese ; Genotyping
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract A growing body of evidence suggests that prostate-specific antigen (PSA) is a novel prognostic factor for breast cancer. The molecular mechanism of variant PSA expression in breast cancer has remained poorly understood in spite of intensive research. Previous studies have shown that the coding region of the PSA gene is not a target for mutations in prostate cancer and breast cancer. The purpose of this study was to analyze genetic variations in the promoter region of the PSA gene, and to detect whether such variations are correlated with PSA mRNA expression in breast tumors. We identified two polymorphisms in the proximal promoter region of the PSA gene. These polymorphisms are located at positions −252 (G or A) and −205 (A or AA), and generate three genotypes. The genotypes were associated with PSA mRNA expression. Our findings suggest that these polymorphisms identified in the proximal promoter region may affect the transcriptional activity of PSA.
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