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  • Articles  (219)
  • 2005-2009  (178)
  • 1925-1929  (41)
  • Computer Science  (219)
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  • Articles  (219)
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  • 1
    Electronic Resource
    Electronic Resource
    Bingley : Emerald
    Industrial management & data systems 105 (2005), S. 1022-1038 
    ISSN: 0263-5577
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Computer Science , Economics
    Notes: Purpose - There has been considerable discussion over the last several years concerning the size of manufacturing facilities and their productivity. Anecdotal evidence suggests that smaller facilities are more productive than larger facilities since they tend to be more focused on a smaller set of products. The assumption is that as facilities become larger, they lose their focus by expanding their product mix and as a result, productivity suffers. Very little empirical evidence exists to support this idea. Design/methodology/approach - In an attempt to bring some empirical clarity to this question, a study was conducted involving over 300 US manufacturing facilities of various sizes, as measured by number of employees. The performance level of each facility was estimated through the use of 29 performance indicators. A statistical analysis was conducted addressing the relationship between facility size and performance. Findings - While some differences in operating characteristics between the two groups were found, only a few significant differences in performance were found. Results of this data analysis do not support the general suggestion that small facilities are more productive than larger facilities. Research limitations/implications - Since respondents spanned all manufacturing industries, there may be some differences in certain industries that are not reflected due to the cross-industry nature of this study. Also, the responses to the items were all perceptual based on a seven-point Likert scale. There were no objective measures included because of the incomparability between industries, particularly for performance measures. Originality/value - Results of this study can provide valuable insight into the relationship between facility size and productivity.
    Type of Medium: Electronic Resource
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  • 2
    Publication Date: 2006-05-01
    Print ISSN: 0031-3203
    Electronic ISSN: 1873-5142
    Topics: Computer Science
    Published by Elsevier
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  • 3
    Publication Date: 2006-09-23
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Raghu, S -- Anderson, R C -- Daehler, C C -- Davis, A S -- Wiedenmann, R N -- Simberloff, D -- Mack, R N -- New York, N.Y. -- Science. 2006 Sep 22;313(5794):1742.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Illinois Natural History Survey, Champaign, IL 61820, USA. raghu@uiuc.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16990536" target="_blank"〉PubMed〈/a〉
    Keywords: *Biomass ; *Conservation of Natural Resources ; *Ecosystem ; *Energy-Generating Resources ; *Environment ; Herbicides ; Pest Control, Biological ; *Poaceae/growth & development ; United States
    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
    Publication Date: 2006-08-19
    Description: NGC 6397 is the second closest globular star cluster to the Sun. Using 5 days of time on the Hubble Space Telescope, we have constructed an ultradeep color-magnitude diagram for this cluster. We see a clear truncation in each of its two major stellar sequences. Faint red main-sequence stars run out well above our observational limit and near to the theoretical prediction for the lowest mass stars capable of stable hydrogen burning in their cores. We also see a truncation in the number counts of faint blue stars, namely white dwarfs. This reflects the limit to which the bulk of the white dwarfs can cool over the lifetime of the cluster. There is also a turn toward bluer colors in the least luminous of these objects. This was predicted for the very coolest white dwarfs with hydrogen-rich atmospheres as the formation of H(2) and the resultant collision-induced absorption cause their atmospheres to become largely opaque to infrared radiation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Richer, Harvey B -- Anderson, Jay -- Brewer, James -- Davis, Saul -- Fahlman, Gregory G -- Hansen, Brad M S -- Hurley, Jarrod -- Kalirai, Jasonjot S -- King, Ivan R -- Reitzel, David -- Rich, R Michael -- Shara, Michael M -- Stetson, Peter B -- New York, N.Y. -- Science. 2006 Aug 18;313(5789):936-40.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Physics and Astronomy, University of British Columbia, Vancouver, British Columbia V6T 1Z1, Canada. richer@astro.ubc.ca〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16917054" 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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  • 5
    Publication Date: 2006-09-09
    Description: We used functional magnetic resonance imaging to demonstrate preserved conscious awareness in a patient fulfilling the criteria for a diagnosis of vegetative state. When asked to imagine playing tennis or moving around her home, the patient activated predicted cortical areas in a manner indistinguishable from that of healthy volunteers.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Owen, Adrian M -- Coleman, Martin R -- Boly, Melanie -- Davis, Matthew H -- Laureys, Steven -- Pickard, John D -- MC_U105559847/Medical Research Council/United Kingdom -- MC_U105580446/Medical Research Council/United Kingdom -- New York, N.Y. -- Science. 2006 Sep 8;313(5792):1402.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Medical Research Council Cognition and Brain Sciences Unit, Cambridge CB2 2EF, UK. adrian.owen@mrc-cbu.cam.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16959998" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; *Awareness ; Brain/*physiopathology ; Brain Injuries/physiopathology/*psychology ; Brain Mapping ; *Consciousness ; Female ; Humans ; *Magnetic Resonance Imaging ; Neurons/physiology ; Persistent Vegetative State/physiopathology/*psychology
    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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  • 6
    Publication Date: 2006-11-18
    Description: We present studies of the electronic structure of La(2-x)BaxCuO4, a system where the superconductivity is strongly suppressed as static spin and charge orders or "stripes" develop near the doping level of x = (1/8). Using angle-resolved photoemission and scanning tunneling microscopy, we detect an energy gap at the Fermi surface with magnitude consistent with d-wave symmetry and with linear density of states, vanishing only at four nodal points, even when superconductivity disappears at x = (1/8). Thus, the nonsuperconducting, striped state at x = (1/8) is consistent with a phase-incoherent d-wave superconductor whose Cooper pairs form spin-charge-ordered structures instead of becoming superconducting.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Valla, T -- Fedorov, A V -- Lee, Jinho -- Davis, J C -- Gu, G D -- New York, N.Y. -- Science. 2006 Dec 22;314(5807):1914-6. Epub 2006 Nov 16.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, NY 11973, USA. valla@bnl.gov〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17110536" 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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  • 7
    Publication Date: 2007-04-14
    Description: The pre-B cell receptor (pre-BCR) serves as a checkpoint in B cell development. In the 2.7 angstrom structure of a human pre-BCR Fab-like fragment, consisting of an antibody heavy chain (HC) paired with the surrogate light chain, the "unique regions" of VpreB and lambda5 replace the complementarity-determining region 3 (CDR3) loop of an antibody light chain and appear to "probe" the HC CDR3, potentially influencing the selection of the antibody repertoire. Biochemical analysis indicates that the pre-BCR is impaired in its ability to recognize antigen, which, together with electron microscopic visualization of a pre-BCR dimer, suggests ligand-independent oligomerization as the likely signaling mechanism.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bankovich, Alexander J -- Raunser, Stefan -- Juo, Z Sean -- Walz, Thomas -- Davis, Mark M -- Garcia, K Christopher -- T32 AI007290/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 2007 Apr 13;316(5822):291-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Program in Immunology, Stanford University School of Medicine, Stanford, CA 94305, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17431183" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Complementarity Determining Regions/chemistry/physiology ; Crystallography, X-Ray ; Humans ; Immunoglobulin Heavy Chains/chemistry/physiology ; Immunoglobulin Light Chains/chemistry/physiology ; Immunoglobulin Light Chains, Surrogate ; Membrane Glycoproteins/*chemistry/physiology/ultrastructure ; Mice ; Models, Molecular ; Pre-B Cell Receptors ; Protein Conformation ; Receptors, Antigen, B-Cell/*chemistry/physiology/ultrastructure ; Recombinant Proteins ; Structure-Activity Relationship
    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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  • 8
    Publication Date: 2007-02-10
    Description: Removing electrons from the CuO2 plane of cuprates alters the electronic correlations sufficiently to produce high-temperature superconductivity. Associated with these changes are spectral-weight transfers from the high-energy states of the insulator to low energies. In theory, these should be detectable as an imbalance between the tunneling rate for electron injection and extraction-a tunneling asymmetry. We introduce atomic-resolution tunneling-asymmetry imaging, finding virtually identical phenomena in two lightly hole-doped cuprates: Ca(1.88)Na(0.12)CuO(2)Cl2 and Bi2Sr2Dy(0.2)Ca(0.8)Cu2O(8+delta). Intense spatial variations in tunneling asymmetry occur primarily at the planar oxygen sites; their spatial arrangement forms a Cu-O-Cu bond-centered electronic pattern without long-range order but with 4a(0)-wide unidirectional electronic domains dispersed throughout (a(0): the Cu-O-Cu distance). The emerging picture is then of a partial hole localization within an intrinsic electronic glass evolving, at higher hole densities, into complete delocalization and highest-temperature superconductivity.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kohsaka, Y -- Taylor, C -- Fujita, K -- Schmidt, A -- Lupien, C -- Hanaguri, T -- Azuma, M -- Takano, M -- Eisaki, H -- Takagi, H -- Uchida, S -- Davis, J C -- New York, N.Y. -- Science. 2007 Mar 9;315(5817):1380-5. Epub 2007 Feb 8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Atomic and Solid State Physics, Department of Physics, Cornell University, Ithaca, NY 14853, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17289939" 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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  • 9
    Publication Date: 2007-03-24
    Description: We demonstrate a magnifying superlens that can be integrated into a conventional far-field optical microscope. Our design is based on a multilayer photonic metamaterial consisting of alternating layers of positive and negative refractive index, as originally proposed by Narimanov and Engheta. We achieved a resolution on the order of 70 nanometers. The use of such a magnifying superlens should find numerous applications in imaging.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Smolyaninov, Igor I -- Hung, Yu-Ju -- Davis, Christopher C -- New York, N.Y. -- Science. 2007 Mar 23;315(5819):1699-701.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Electrical and Computer Engineering, University of Maryland, College Park, MD 20742, USA. smoly@eng.umd.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17379804" 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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  • 10
    Publication Date: 2007-04-14
    Description: The rhesus macaque (Macaca mulatta) is an abundant primate species that diverged from the ancestors of Homo sapiens about 25 million years ago. Because they are genetically and physiologically similar to humans, rhesus monkeys are the most widely used nonhuman primate in basic and applied biomedical research. We determined the genome sequence of an Indian-origin Macaca mulatta female and compared the data with chimpanzees and humans to reveal the structure of ancestral primate genomes and to identify evidence for positive selection and lineage-specific expansions and contractions of gene families. A comparison of sequences from individual animals was used to investigate their underlying genetic diversity. The complete description of the macaque genome blueprint enhances the utility of this animal model for biomedical research and improves our understanding of the basic biology of the species.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rhesus Macaque Genome Sequencing and Analysis Consortium -- Gibbs, Richard A -- Rogers, Jeffrey -- Katze, Michael G -- Bumgarner, Roger -- Weinstock, George M -- Mardis, Elaine R -- Remington, Karin A -- Strausberg, Robert L -- Venter, J Craig -- Wilson, Richard K -- Batzer, Mark A -- Bustamante, Carlos D -- Eichler, Evan E -- Hahn, Matthew W -- Hardison, Ross C -- Makova, Kateryna D -- Miller, Webb -- Milosavljevic, Aleksandar -- Palermo, Robert E -- Siepel, Adam -- Sikela, James M -- Attaway, Tony -- Bell, Stephanie -- Bernard, Kelly E -- Buhay, Christian J -- Chandrabose, Mimi N -- Dao, Marvin -- Davis, Clay -- Delehaunty, Kimberly D -- Ding, Yan -- Dinh, Huyen H -- Dugan-Rocha, Shannon -- Fulton, Lucinda A -- Gabisi, Ramatu Ayiesha -- Garner, Toni T -- Godfrey, Jennifer -- Hawes, Alicia C -- Hernandez, Judith -- Hines, Sandra -- Holder, Michael -- Hume, Jennifer -- Jhangiani, Shalini N -- Joshi, Vandita -- Khan, Ziad Mohid -- Kirkness, Ewen F -- Cree, Andrew -- Fowler, R Gerald -- Lee, Sandra -- Lewis, Lora R -- Li, Zhangwan -- Liu, Yih-Shin -- Moore, Stephanie M -- Muzny, Donna -- Nazareth, Lynne V -- Ngo, Dinh Ngoc -- Okwuonu, Geoffrey O -- Pai, Grace -- Parker, David -- Paul, Heidie A -- Pfannkoch, Cynthia -- Pohl, Craig S -- Rogers, Yu-Hui -- Ruiz, San Juana -- Sabo, Aniko -- Santibanez, Jireh -- Schneider, Brian W -- Smith, Scott M -- Sodergren, Erica -- Svatek, Amanda F -- Utterback, Teresa R -- Vattathil, Selina -- Warren, Wesley -- White, Courtney Sherell -- Chinwalla, Asif T -- Feng, Yucheng -- Halpern, Aaron L -- Hillier, Ladeana W -- Huang, Xiaoqiu -- Minx, Pat -- Nelson, Joanne O -- Pepin, Kymberlie H -- Qin, Xiang -- Sutton, Granger G -- Venter, Eli -- Walenz, Brian P -- Wallis, John W -- Worley, Kim C -- Yang, Shiaw-Pyng -- Jones, Steven M -- Marra, Marco A -- Rocchi, Mariano -- Schein, Jacqueline E -- Baertsch, Robert -- Clarke, Laura -- Csuros, Miklos -- Glasscock, Jarret -- Harris, R Alan -- Havlak, Paul -- Jackson, Andrew R -- Jiang, Huaiyang -- Liu, Yue -- Messina, David N -- Shen, Yufeng -- Song, Henry Xing-Zhi -- Wylie, Todd -- Zhang, Lan -- Birney, Ewan -- Han, Kyudong -- Konkel, Miriam K -- Lee, Jungnam -- Smit, Arian F A -- Ullmer, Brygg -- Wang, Hui -- Xing, Jinchuan -- Burhans, Richard -- Cheng, Ze -- Karro, John E -- Ma, Jian -- Raney, Brian -- She, Xinwei -- Cox, Michael J -- Demuth, Jeffery P -- Dumas, Laura J -- Han, Sang-Gook -- Hopkins, Janet -- Karimpour-Fard, Anis -- Kim, Young H -- Pollack, Jonathan R -- Vinar, Tomas -- Addo-Quaye, Charles -- Degenhardt, Jeremiah -- Denby, Alexandra -- Hubisz, Melissa J -- Indap, Amit -- Kosiol, Carolin -- Lahn, Bruce T -- Lawson, Heather A -- Marklein, Alison -- Nielsen, Rasmus -- Vallender, Eric J -- Clark, Andrew G -- Ferguson, Betsy -- Hernandez, Ryan D -- Hirani, Kashif -- Kehrer-Sawatzki, Hildegard -- Kolb, Jessica -- Patil, Shobha -- Pu, Ling-Ling -- Ren, Yanru -- Smith, David Glenn -- Wheeler, David A -- Schenck, Ian -- Ball, Edward V -- Chen, Rui -- Cooper, David N -- Giardine, Belinda -- Hsu, Fan -- Kent, W James -- Lesk, Arthur -- Nelson, David L -- O'brien, William E -- Prufer, Kay -- Stenson, Peter D -- Wallace, James C -- Ke, Hui -- Liu, Xiao-Ming -- Wang, Peng -- Xiang, Andy Peng -- Yang, Fan -- Barber, Galt P -- Haussler, David -- Karolchik, Donna -- Kern, Andy D -- Kuhn, Robert M -- Smith, Kayla E -- Zwieg, Ann S -- 062023/Wellcome Trust/United Kingdom -- R01 HG002939/HG/NHGRI NIH HHS/ -- U54 HG003068/HG/NHGRI NIH HHS/ -- U54 HG003079/HG/NHGRI NIH HHS/ -- U54 HG003273/HG/NHGRI NIH HHS/ -- New York, N.Y. -- Science. 2007 Apr 13;316(5822):222-34.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Human Genome Sequencing Center, Baylor College of Medicine, Houston, TX 77030, USA. agibbs@bcm.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17431167" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Biomedical Research ; *Evolution, Molecular ; Female ; Gene Duplication ; Gene Rearrangement ; Genetic Diseases, Inborn ; Genetic Variation ; *Genome ; Humans ; Macaca mulatta/*genetics ; Male ; Multigene Family ; Mutation ; Pan troglodytes/genetics ; Sequence Analysis, DNA ; Species Specificity
    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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