|
|
Creator | Title | Description | Subject | Date |
101 |
|
Williams, Clayton C. | Atomic scale trap state characterization by dynamic tunneling force microscopy | Dynamic tunneling force microscopy (DTFM) is applied to the study of point defects in an inter-layer dielectric film. A recent development enables simultaneous acquisition of DTFM, surface potential, and topographic images while under active height feedback control. The images show no clear correlat... | | 2014-01-01 |
102 |
|
Beckerle, Mary C. | Atrial natriuretic peptide promotes cardiomyocyte survival by cGMP-dependent nuclear accumulation of zyxin and Akt | This study delineates a mechanism for antiapoptotic signaling initiated by atrial natriuretic peptide (ANP) stimulation leading to elevation of cGMP levels and subsequent nuclear accumulation of Akt kinase associated with zyxin, a cytoskeletal LIM-domain protein. Nuclear targeting of zyxin induces r... | Zyxin; Akt; Cyclic guanosine monophosphate | 2005 |
103 |
|
Mishchenko, Eugene | Attraction-repulsion transition in the interaction of adatoms and vacancies in graphene | The interaction of two resonant impurities in graphene has been predicted to have a long-range character with weaker repulsion when the two adatoms reside on the same sublattice and stronger attraction when they are on different sublattices. We reveal that this attraction results from a single energ... | | 2014-01-01 |
104 |
|
Gesteland, Raymond F.; Ives, Jeffrey T.; Stockham, Thomas G. | Automated film reader for DNA sequencing based on homomorphic deconvolution | An automated reader for electrophoresis based DNA sequencing methods is described that provides fast and accurate sequence determination. Digitized sequencing lanes are processed with homomorphic blind deconvolution in preparation for peak detection, interlane alignment, peak refinement and base cal... | Sequence Analysis; Electrophoresis; Automated Film Reader; Homomorphic Deconvolution | 1994 |
105 |
|
Lee, Hyo Jong | Automatic mesh analysis technique by knowledge-based system | The finite element analysis technique has been recognized as a very important tool to solve various engineering problems, such as structural analysis, heat transfer, and fluid dynamics. The key point to the technique is discretization of the domain of interest into many finite elements. A good resul... | Mesh analysis; Mesh generation algorithm | 1989 |
106 |
|
Gondolo, Paolo | Axion cold dark matter in nonstandard cosmologies | We study the parameter space of cold dark matter axions in two cosmological scenarios with nonstandard thermal histories before big bang nucleosynthesis: the low-temperature reheating (LTR) cosmology and the kination cosmology. If the Peccei-Quinn symmetry breaks during inflation, we find more allow... | | 2010-01-01 |
107 |
|
Gondolo, Paolo | Axion cold dark matter in view of BICEP2 results | The properties of axions that constitute 100% of cold dark matter (CDM) depend on the tensor-to-scalar ratio r at the end of inflation. If r ¼ 0.20 þ0.07 −0.05 as reported by the BICEP2 Collaboration, then "half" of the CDM axion parameter space is ruled out. Namely, in the context of single-fie... | | 2014-01-01 |
108 |
|
Jorgensen, Erik | Axon regeneration genes identified by RNAi screening in C. elegans | Axons of the mammalian CNS lose the ability to regenerate soon after development due to both an inhibitory CNS environment and the loss of cell-intrinsic factors necessary for regeneration. The complex molecular events required for robust regeneration of mature neurons are not fully understood, part... | | 2014-01-01 |
109 |
|
Jorgensen, Erik | Axons break in animals lacking B-spectrin | Axons and dendrites can withstand acute mechanical strain despite their small diameter. In this study, we demonstrate that β-spectrin is required for the physical integrity of neuronal processes in the nematode Caenorhabditis elegans. Axons in β-spectrin mutants spontaneously break. | | 2007 |
110 |
|
Bastiani, Michael | Axons break in animals lacking β-spectrin | Axons and dendrites can withstand acute mechanical strain despite their small diameter. In this study, we demonstrate that β-spectrin is required for the physical integrity of neuronal processes in the nematode Caenorhabditis elegans. Axons in β-spectrin mutants spontaneously break. | Mutants; Dendrites; Morphology | 2007 |
111 |
|
Wu, Yong-Shi | BPS R-balls in N = 4 SYM on R × S3, quantum Hall analogy and AdS/CFT holography | In this paper, we propose a new approach to study the BPS dynamics in N = 4 supersymmetric U(N) Yang-Mills theory on R × S3, in order to better understand the emergence of gravity in the gauge theory. Our approach is based on supersymmetric, space-filling Q-balls with R-charge, which we call R-ball... | | 2006-06-01 |
112 |
|
Poulter, Charles Dale; Jiang, Yunfeng | BTS1 encodes a geranylgeranyl diphosphate synthase in Saccharomyces cerevisiae | Protein prenylation utilizes different types of isoprenoids groups, namely farnesyl and geranylgeranyl, to modify proteins. These lipophilic moieties attach to carboxyl-terminal cysteine residues to promote the association of soluble proteins to membranes. Most prenylated proteins are geranylgeranyl... | Amino Acid Sequence; Cloning, Molecular; Gene Expression | 1995-09-15 |
113 |
|
Symko, Orest George | Background signals in SQUID magnetometers | Since a SQUID magnetometer is an extremely sensitive device capable of detecting minute magnetic flux changes in a sample, it will also detect unwanted signals from materials near the magnetometer. The presence of temperature dependent "background signals" limits the accuracy of measurements of ... | SQUID magnetometer; Background signals | 1974 |
114 |
|
Sokolsky, Pierre | Backward production in π-p→pπ+π-π- at 8 GeV/c* | We have studied backward baryon and meson production in π'p → pπ+pπ +π-π- at 8.0 GeV/c using a streamer chamber triggered by the detection of a fast forward proton. Our data sample (1227 events) displays prominent N*p and N*f quasi-two-body production. These states are investigated with rega... | | 1976-01 |
115 |
|
Hughes, Kelly T. | Bacterial flagellin-specific chaperone FliS interacts with anti-sigma factor FlgM | Flagella are extracellular organelles that propel bacteria. Each flagellum consists of a basal body, a hook, and a filament. The major protein of the filament is flagellin. To prevent premature polymerization of newly synthesized flagellin molecules, FliS, the flagellin-specific chaperone, binds fla... | | 2014-01-01 |
116 |
|
Olivera, Baldomero M. | Bacteriophage Mu DNA replication in vitro | An in vitro system for bacteriophage Mu DNA replication using lysates on cellophane discs is described. Mu replication was monitored by DNA hybridization. Using a thermoinducible Mu Iysogen, 30-50% of all DNA synthesis in vitro was Mu-specific. | Bacteriophage Mu | 1983 |
117 |
|
Adler, Frederick R. | Balance of terror: an alternative mechanism for competitive trade-offs and its implications for invading species | This article uses models to propose an explanation for three observations in community ecology: the apparent overreaction of prey to attack by specialist predators, the existence of a common trade-off among components of competitive ability in communities of unrelated competitors, and the ability of... | Models; Curve; Native | 1999 |
118 |
|
Mattis, Daniel C. | Band theory of ferromagnetism, antiferromagnetism, and spin waves | Intra-atomic exchange (Hund's rule mechanism) and Heisenberg nearest-neighbor exchange are examined for their role in the ferromagnetism of metals with degenerate bands. The equations of motion of spin waves valid near T=0°K are derived, and a number of branches are found. When the equations are ... | Orbital degeneracy; Indirect exchange theory; Band theory | 1964 |
119 |
|
DeTar, Carleton | Baryon density correlations in high temperature hadronic matter | As part of an ongoing effort to characterize the high temperature phase of QCD, in a numerical simulation using the staggered fermion scheme, we measure the quark baryon density in the vicinity of a fixed test quark at high temperature and compare it with similar measurements at low temperature and ... | Baryon density; Staggered fermions; Quark plasma | 1994-06 |
120 |
|
Ehleringer, James R. | Bayesian integration of isotope ratio for geographic sourcing of castor beans | Recent years have seen an increase in the forensic interest associated with the poison ricin, which is extracted from the seeds of the Ricinus communis plant. Both light element (C, N, O, and H) and strontium (Sr) isotope ratios have previously been used to associate organic material with geographic... | | 2012-01-01 |
121 |
|
Vardeny, Zeev Valentine | Below-gap excitation of ∏-conjugated polymer-fullerene blends: implications for bulk organic heterojunction solar cells | We used a variety of optoelectronic techniques such as broadband fs transient and cw photomodulation spectroscopies, electroabsorption, and short-circuit photocurrent in bulk heterojunctions organic solar cells for studying the photophysics in ∏-conjugated polymer-fullerene blends with below-gap... | pi-conjugated polymers; Fullerene blends; Below-gap excitations; Bulk heterojunctions; Bulk organic heterojunction solar cells; Photophysics | 2008-07 |
122 |
|
Coley, Phyllis D. | Beneficios y costos de defensa en un arbusto del neotrópico | LOS beneficios y costos son de importancia capital para las teorfas de optimization de las defensas de las plantas. El beneficio es la ganancia de aptitud para reducir el herbivorismo; el costo es la perdida de aptitud al comprometer recursos en defensa. Evaluamos los beneficios y los costos de def... | Psychotria horizontalis; Isla de Barro Colorado; Costos de defense; Celdas de exclusion; Herbivorismo; Defensa de las plantas; Taninos; Dureza; Tropicos; Benefit; Beneficios | 2007 |
123 |
|
Coley, Phyllis D. | Benefits and costs of defense in a neotropical shrub | Benefits and costs are central to optimality theories of plant defense. Benefit is the gain in fitness to reducing herbivory and cost is the loss in fitness to committing resources to defense. We evaluate the benefits and costs of defense in a neotropical shrub, Psychotria horizontalis. Plants were ... | Cost of defense; Growth-defense trade-off; Exclosures; Field experiment; Herbivory; Panama; Psychotria horizontalis; Rubiaceae; Tannins; Toughness; Tropics | 1995 |
124 |
|
Coley, Phyllis D. | Between-species differences in leaf defenses of tropical trees | Rates of herbivory and patterns of leaf defense are presented for light-demanding and shade-tolerant tree species growing in a lowland rainforest in Panama. More than 85 percent of the annual leaf damage is due to grazing by insects. There are over three orders of magnitude difference between specie... | Herbivory; Interspecific variation; Panama; Growth rate; Shade tolerance; Treefall gaps; Tropical forest; Understory; Tannins; Alkaloids | 1987 |
125 |
|
Yamaguchi, Ayako | Bilateral coordination of vocal pathways in African clawed frogs, Xenopus laevis | This poster describes how bilateral coordination of motor programs are achieved in the central vocal pathways of African clawed frogs. | Vocalizations; Central pattern generator; Motor programs; Bilateral coordination | 2014 |