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  • 1
    Publication Date: 2001-10-06
    Description: We synthesized multimetal microrods intrinsically encoded with submicrometer stripes. Complex striping patterns are readily prepared by sequential electrochemical deposition of metal ions into templates with uniformly sized pores. The differential reflectivity of adjacent stripes enables identification of the striping patterns by conventional light microscopy. This readout mechanism does not interfere with the use of fluorescence for detection of analytes bound to particles by affinity capture, as demonstrated by DNA and protein bioassays.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Nicewarner-Pena, S R -- Freeman, R G -- Reiss, B D -- He, L -- Pena, D J -- Walton, I D -- Cromer, R -- Keating, C D -- Natan, M J -- HG02228/HG/NHGRI NIH HHS/ -- New York, N.Y. -- Science. 2001 Oct 5;294(5540):137-41.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Chemistry, Pennsylvania State University, 152 Davey Laboratory, University Park, PA 16802, USA., SurroMed Inc., 2375 Garcia Avenue, Mountain View, CA 94043, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11588257" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Biochemistry/*methods ; Chemistry Techniques, Analytical/*methods ; Electrochemistry ; Fluorescence ; Fluorescent Antibody Technique ; Humans ; Immunoassay/*methods ; Immunoglobulin G/analysis ; *Metals ; Microscopy ; Miniaturization ; Nucleic Acid Hybridization/*methods ; Oligonucleotide Probes ; Optics and Photonics ; Rabbits ; Templates, 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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  • 2
    Electronic Resource
    Electronic Resource
    New York, NY : Wiley-Blackwell
    International Journal of Quantum Chemistry 17 (1980), S. 931-942 
    ISSN: 0020-7608
    Keywords: Computational Chemistry and Molecular Modeling ; Atomic, Molecular and Optical Physics
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The energy levels and perturbation expansions for the expectation values of arbitrary powers of position for a perturbed Morse oscillator are obtained by application of the hypervirial and Hellmann-Feynman theorems, solely in terms of the unperturbed energy. We obtain expressions for the first-order corrections for (1 - e-aq )m for 4 ≤ m ≤ 8 and the expressions to second and third order for the quartic perturbation. A numerical application to the CO molecule is made.
    Additional Material: 9 Tab.
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  • 3
    Electronic Resource
    Electronic Resource
    New York, NY : Wiley-Blackwell
    International Journal of Quantum Chemistry 22 (1982), S. 1263-1270 
    ISSN: 0020-7608
    Keywords: Computational Chemistry and Molecular Modeling ; Atomic, Molecular and Optical Physics
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The behavior of a rigid rotor perturbed by an electric field is studied. An hypervirial calculation, to obtain the perturbation series without calculation of the perturbed wavefunctions, is used to determine the Stark-shifted eigenvalues. A numerical estimation of the m equals; 0 → m = 1 transition for the lowest vibrational state (v = 0) and the first rotational state (J = 1) for the HF and DF molecules using Padé approximants is made.
    Additional Material: 5 Tab.
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  • 4
    Electronic Resource
    Electronic Resource
    New York, NY : Wiley-Blackwell
    International Journal of Quantum Chemistry 25 (1984), S. 677-686 
    ISSN: 0020-7608
    Keywords: Computational Chemistry and Molecular Modeling ; Atomic, Molecular and Optical Physics
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The vibration-rotation levels for the diatomic RKR potential curve are solved using both perturbational and variational approaches. To obtain any-order correction of the energy from unperturbed parameters, an iterative scheme is formulated in the hypervirial framework. Variational calculations are carried out upon a rotationless Morse oscillator basis set and using a transformation technique to treat the effective potential energy function. Numerical results for the RbH X 1Σ+ state are obtained. The accuracy of the energy levels is tested by solving the Schrödinger equation by a numerical procedure.
    Additional Material: 5 Tab.
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  • 5
    Electronic Resource
    Electronic Resource
    New York, NY : Wiley-Blackwell
    International Journal of Quantum Chemistry 40 (1991), S. 155-164 
    ISSN: 0020-7608
    Keywords: Computational Chemistry and Molecular Modeling ; Atomic, Molecular and Optical Physics
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: A general algebraic procedure that yields to raising and lowering operators for the solutions of second-order differential equations is presented. The method is illustrated by applying it to the differential equations of Hermite and Laguerre polynomials. Taking advantage of the algebraic representation of these polynomials, the ladder operators for harmonic oscillator and hydrogen atom wavefunctions are straightforwardly deduced without resorting to specialized factorizations. The proposed algebraic approach can be extended to the determination of new sets of ladder operators that could be used in the calculation of matrix elements in specific applications.
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  • 6
    Electronic Resource
    Electronic Resource
    New York, NY : Wiley-Blackwell
    International Journal of Quantum Chemistry 56 (1995), S. 339-347 
    ISSN: 0020-7608
    Keywords: Computational Chemistry and Molecular Modeling ; Atomic, Molecular and Optical Physics
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: A commutator algebra procedure is used to get improved recurrence relations for the calculation of any f(r) off-diagonal two-center matrix elements in the general case of displaced arbitrary central potential wave functions. As expected, the proposed formulas reduce properly to the generalized recursion equations for the calculation of one-center integrals. Besides, when f(r) = rk, one obtains the equivalent of the Kramer rule for two-center multipolar matrix elements for arbitrary potentials, and when f(r) is constant, the Wu formula (for the calculation of Franck-Condon factors) is ameliorated in the sense that the new relation not necessarily considers equal mass. Furthermore, all diagonal matrix elements as well as all off-diagonal integrals between nondisplaced potentials appear, in our treatment, as particular cases in good agreement with already published results. As a useful application, the corresponding recurrence relations for the calculation of one-center hydrogenic matrix elements and two-center Kratzer potential integrals are given as examples. However, our approach is general and can be easily extended to obtain recursion formulae for other potential wave functions. © 1995 John Wiley & Sons, Inc.
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  • 7
    Publication Date: 2002-08-31
    Description: Learning a language requires both statistical computations to identify words in speech and algebraic-like computations to discover higher level (grammatical) structure. Here we show that these computations can be influenced by subtle cues in the speech signal. After a short familiarization to a continuous speech stream, adult listeners are able to segment it using powerful statistics, but they fail to extract the structural regularities included in the stream even when the familiarization is greatly extended. With the introduction of subliminal segmentation cues, however, these regularities can be rapidly captured.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pena, Marcela -- Bonatti, Luca L -- Nespor, Marina -- Mehler, Jacques -- New York, N.Y. -- Science. 2002 Oct 18;298(5593):604-7. Epub 2002 Aug 29.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉International School for Advanced Studies, Trieste, Italy.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12202684" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Cues ; France ; Humans ; *Language ; *Learning ; *Linguistics ; Phonetics ; Probability ; *Speech Perception ; Statistics as Topic ; Vocabulary
    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
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1999-04-17
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pena, S D -- New York, N.Y. -- Science. 1999 Mar 26;283(5410):2017.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10206903" target="_blank"〉PubMed〈/a〉
    Keywords: Asia ; Asian Continental Ancestry Group/*genetics ; Emigration and Immigration ; *Haplotypes ; Humans ; Indians, North American/*genetics ; Indians, South American/*genetics ; Y Chromosome/*genetics
    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: 2008-12-02
    Description: MicroRNAs comprise a broad class of small non-coding RNAs that control expression of complementary target messenger RNAs. Dysregulation of microRNAs by several mechanisms has been described in various disease states including cardiac disease. Whereas previous studies of cardiac disease have focused on microRNAs that are primarily expressed in cardiomyocytes, the role of microRNAs expressed in other cell types of the heart is unclear. Here we show that microRNA-21 (miR-21, also known as Mirn21) regulates the ERK-MAP kinase signalling pathway in cardiac fibroblasts, which has impacts on global cardiac structure and function. miR-21 levels are increased selectively in fibroblasts of the failing heart, augmenting ERK-MAP kinase activity through inhibition of sprouty homologue 1 (Spry1). This mechanism regulates fibroblast survival and growth factor secretion, apparently controlling the extent of interstitial fibrosis and cardiac hypertrophy. In vivo silencing of miR-21 by a specific antagomir in a mouse pressure-overload-induced disease model reduces cardiac ERK-MAP kinase activity, inhibits interstitial fibrosis and attenuates cardiac dysfunction. These findings reveal that microRNAs can contribute to myocardial disease by an effect in cardiac fibroblasts. Our results validate miR-21 as a disease target in heart failure and establish the therapeutic efficacy of microRNA therapeutic intervention in a cardiovascular disease setting.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Thum, Thomas -- Gross, Carina -- Fiedler, Jan -- Fischer, Thomas -- Kissler, Stephan -- Bussen, Markus -- Galuppo, Paolo -- Just, Steffen -- Rottbauer, Wolfgang -- Frantz, Stefan -- Castoldi, Mirco -- Soutschek, Jurgen -- Koteliansky, Victor -- Rosenwald, Andreas -- Basson, M Albert -- Licht, Jonathan D -- Pena, John T R -- Rouhanifard, Sara H -- Muckenthaler, Martina U -- Tuschl, Thomas -- Martin, Gail R -- Bauersachs, Johann -- Engelhardt, Stefan -- R01 CA059998/CA/NCI NIH HHS/ -- R01 CA78711/CA/NCI NIH HHS/ -- England -- Nature. 2008 Dec 18;456(7224):980-4. doi: 10.1038/nature07511. Epub 2008 Nov 30.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medicine I, Interdisziplinares Zentrum fur Klinische Forschung (IZKF), University of Wuerzburg, 97080 Wuerzburg, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19043405" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cardiomyopathies/*genetics/*metabolism/pathology/therapy ; Cell Line ; Cell Survival ; Cells, Cultured ; Disease Models, Animal ; Extracellular Signal-Regulated MAP Kinases/metabolism ; Fibroblasts/*metabolism ; Gene Silencing ; Humans ; *MAP Kinase Signaling System ; Male ; Mice ; Mice, Transgenic ; MicroRNAs/*genetics ; Myocytes, Cardiac/cytology/metabolism ; Rats
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 10
    Publication Date: 2015-03-04
    Description: We generated genome-wide data from 69 Europeans who lived between 8,000-3,000 years ago by enriching ancient DNA libraries for a target set of almost 400,000 polymorphisms. Enrichment of these positions decreases the sequencing required for genome-wide ancient DNA analysis by a median of around 250-fold, allowing us to study an order of magnitude more individuals than previous studies and to obtain new insights about the past. We show that the populations of Western and Far Eastern Europe followed opposite trajectories between 8,000-5,000 years ago. At the beginning of the Neolithic period in Europe, approximately 8,000-7,000 years ago, closely related groups of early farmers appeared in Germany, Hungary and Spain, different from indigenous hunter-gatherers, whereas Russia was inhabited by a distinctive population of hunter-gatherers with high affinity to a approximately 24,000-year-old Siberian. By approximately 6,000-5,000 years ago, farmers throughout much of Europe had more hunter-gatherer ancestry than their predecessors, but in Russia, the Yamnaya steppe herders of this time were descended not only from the preceding eastern European hunter-gatherers, but also from a population of Near Eastern ancestry. Western and Eastern Europe came into contact approximately 4,500 years ago, as the Late Neolithic Corded Ware people from Germany traced approximately 75% of their ancestry to the Yamnaya, documenting a massive migration into the heartland of Europe from its eastern periphery. This steppe ancestry persisted in all sampled central Europeans until at least approximately 3,000 years ago, and is ubiquitous in present-day Europeans. These results provide support for a steppe origin of at least some of the Indo-European languages of Europe.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Haak, Wolfgang -- Lazaridis, Iosif -- Patterson, Nick -- Rohland, Nadin -- Mallick, Swapan -- Llamas, Bastien -- Brandt, Guido -- Nordenfelt, Susanne -- Harney, Eadaoin -- Stewardson, Kristin -- Fu, Qiaomei -- Mittnik, Alissa -- Banffy, Eszter -- Economou, Christos -- Francken, Michael -- Friederich, Susanne -- Pena, Rafael Garrido -- Hallgren, Fredrik -- Khartanovich, Valery -- Khokhlov, Aleksandr -- Kunst, Michael -- Kuznetsov, Pavel -- Meller, Harald -- Mochalov, Oleg -- Moiseyev, Vayacheslav -- Nicklisch, Nicole -- Pichler, Sandra L -- Risch, Roberto -- Rojo Guerra, Manuel A -- Roth, Christina -- Szecsenyi-Nagy, Anna -- Wahl, Joachim -- Meyer, Matthias -- Krause, Johannes -- Brown, Dorcas -- Anthony, David -- Cooper, Alan -- Alt, Kurt Werner -- Reich, David -- GM100233/GM/NIGMS NIH HHS/ -- R01 HG006399/HG/NHGRI NIH HHS/ -- Howard Hughes Medical Institute/ -- England -- Nature. 2015 Jun 11;522(7555):207-11. doi: 10.1038/nature14317. Epub 2015 Mar 2.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Australian Centre for Ancient DNA, School of Earth and Environmental Sciences &Environment Institute, University of Adelaide, Adelaide, South Australia 5005, Australia. ; 1] Department of Genetics, Harvard Medical School, Boston, Massachusetts 02115, USA [2] Broad Institute of Harvard and MIT, Cambridge, Massachusetts 02142, USA. ; Broad Institute of Harvard and MIT, Cambridge, Massachusetts 02142, USA. ; 1] Department of Genetics, Harvard Medical School, Boston, Massachusetts 02115, USA [2] Broad Institute of Harvard and MIT, Cambridge, Massachusetts 02142, USA [3] Howard Hughes Medical Institute, Harvard Medical School, Boston, Massachusetts 02115, USA. ; Institute of Anthropology, Johannes Gutenberg University of Mainz, D-55128 Mainz, Germany. ; 1] Department of Genetics, Harvard Medical School, Boston, Massachusetts 02115, USA [2] Broad Institute of Harvard and MIT, Cambridge, Massachusetts 02142, USA [3] Max Planck Institute for Evolutionary Anthropology, D-04103 Leipzig, Germany [4] Key Laboratory of Vertebrate Evolution and Human Origins of Chinese Academy of Sciences, IVPP, CAS, Beijing 100049, China. ; Institute for Archaeological Sciences, University of Tubingen, D-72070 Tubingen, Germany. ; 1] Institute of Archaeology, Research Centre for the Humanities, Hungarian Academy of Science, H-1014 Budapest, Hungary [2] Romisch Germanische Kommission (RGK) Frankfurt, D-60325 Frankfurt, Germany. ; Archaeological Research Laboratory, Stockholm University, 114 18 Stockholm, Sweden. ; Departments of Paleoanthropology and Archaeogenetics, Senckenberg Center for Human Evolution and Paleoenvironment, University of Tubingen, D-72070 Tubingen, Germany. ; State Office for Heritage Management and Archaeology Saxony-Anhalt and State Museum of Prehistory, D-06114 Halle, Germany. ; Departamento de Prehistoria y Arqueologia, Facultad de Filosofia y Letras, Universidad Autonoma de Madrid, E-28049 Madrid, Spain. ; The Cultural Heritage Foundation, Vasteras 722 12, Sweden. ; Peter the Great Museum of Anthropology and Ethnography (Kunstkamera) RAS, St Petersburg 199034, Russia. ; Volga State Academy of Social Sciences and Humanities, Samara 443099, Russia. ; Deutsches Archaeologisches Institut, Abteilung Madrid, E-28002 Madrid, Spain. ; 1] Institute of Anthropology, Johannes Gutenberg University of Mainz, D-55128 Mainz, Germany [2] State Office for Heritage Management and Archaeology Saxony-Anhalt and State Museum of Prehistory, D-06114 Halle, Germany [3] Danube Private University, A-3500 Krems, Austria. ; Institute for Prehistory and Archaeological Science, University of Basel, CH-4003 Basel, Switzerland. ; Departamento de Prehistoria, Universitat Autonoma de Barcelona, E-08193 Barcelona, Spain. ; Departamento de Prehistoria y Arqueolgia, Universidad de Valladolid, E-47002 Valladolid, Spain. ; 1] Institute of Anthropology, Johannes Gutenberg University of Mainz, D-55128 Mainz, Germany [2] Institute of Archaeology, Research Centre for the Humanities, Hungarian Academy of Science, H-1014 Budapest, Hungary. ; State Office for Cultural Heritage Management Baden-Wurttemberg, Osteology, D-78467 Konstanz, Germany. ; Max Planck Institute for Evolutionary Anthropology, D-04103 Leipzig, Germany. ; 1] Institute for Archaeological Sciences, University of Tubingen, D-72070 Tubingen, Germany [2] Departments of Paleoanthropology and Archaeogenetics, Senckenberg Center for Human Evolution and Paleoenvironment, University of Tubingen, D-72070 Tubingen, Germany [3] Max Planck Institute for the Science of Human History, D-07745 Jena, Germany. ; Anthropology Department, Hartwick College, Oneonta, New York 13820, USA. ; 1] Institute of Anthropology, Johannes Gutenberg University of Mainz, D-55128 Mainz, Germany [2] State Office for Heritage Management and Archaeology Saxony-Anhalt and State Museum of Prehistory, D-06114 Halle, Germany [3] Danube Private University, A-3500 Krems, Austria [4] Institute for Prehistory and Archaeological Science, University of Basel, CH-4003 Basel, Switzerland.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25731166" target="_blank"〉PubMed〈/a〉
    Keywords: Cultural Evolution/*history ; Europe/ethnology ; Genome, Human/genetics ; *Grassland ; History, Ancient ; Human Migration/*history ; Humans ; Language/*history ; Male ; Polymorphism, Genetic/genetics ; Population Dynamics ; Russia
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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