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Creator | Title | Description | Subject | Date |
| 751 |
 |
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 |
| 752 |
 |
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 |
| 753 |
 |
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 |
| 754 |
 |
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 |
| 755 |
 |
Stark, Michael M.; Martin, William; Cohen, Elaine; Lyche, Tom; Riesenfeld, Richard F. | B-splines for physically-based rendering | Although B-spline curves and surfaces have enjoyed a long established place in the graphics community as constructive modeling tools, the use of B-spline approximation techniques has received relatively little attention in rendering. In this work we explore the use of 4D and 5D tensor product B-s... | B-spline curves; Rendering algorithms | 2002-01-09 |
| 756 |
 |
Normann, Richard A. | Background and bleaching adaptation in luminosity type horizontal cells in the isolated turtle retina | 1. The effects of background illumination and bleached photopigment on luminosity type horizontal cells were studied in the isolated turtle retina. 2. Background illumination, which produced less than 60% bleaching, hyperpolarized and desensitized the horizontal cells to a degree which depended upon... | Turtles; Retina; Photoreceptors; Bleached photopigment; Dark Adaptation | 1990 |
| 757 |
 |
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 |
| 758 |
 |
Lindstrom, Gary E. | Backtracking in generalized control settings | Backtracking is a powerful conceptual and practical technique in programming. However, its application in general has been limited to global control over recursive programs. In this paper we explore through several examples the coherence and utility of applying backtracking in more general control s... | Backtracking | 1977 |
| 759 |
 |
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 |
| 760 |
 |
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 |
| 761 |
 |
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 |
| 762 |
 |
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 |
| 763 |
 |
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 |
| 764 |
 |
Tiwari, Ashutosh | Band-gap engineering of Zn1-xGaxO nanopowders: synthesis, structural and optical characterizations | We report the preparation and detailed structural and optical characterizations of single phase gallium doped ZnO nanopowders. A low temperature solution-based technique was developed to synthesize high-purity Zn1−xGaxO (x:0-0.05) nanopowders. Structural and optical characterization experiments we... | Zinc gallium oxide; ZnGaO; Nanopowders; Band-gap engineering | 2008 |
| 765 |
 |
Wunderlich, Adam James | Band-restricted estimation of noise variance in filtered backprojection reconstructions using repeated scans | We introduce a new estimator for noise variance in tomographic images reconstructed using algorithms of the filtered backprojection type. The new estimator operates on data acquired from repeated scans of the object under examination, is unbiased, and is shown to have significantly lower variance t... | | 2010 |
| 766 |
 |
Scarpulla, Michael | Bandgap and band offsets determination of semiconductor heterostructures using three-terminal ballistic carrier spectroscopy | Among the most important properties of semiconductors are their bandgaps and how the total bandgap difference distributes between the conduction band offset ΔEC and the valence band offset ΔEV at the heterojunction (HJ) interface between two semiconductors. Understanding such properties is crucial... | Bandgaps; Band offsets; Gallium arsenide | 2009 |
| 767 |
 |
Stringfellow, Gerald B. | Bandgap control of GaInP using Sb as a surfactant | The use of surfactants to control specific aspects of the vapor-phase epitaxial growth process is beginning to be studied for both the elemental and III/V semiconductors. To date, most reported surfactant effects for semiconductors relate to the morphology of the growing films. However, semicondu... | Band-gap energy; Growth process; Epitaxial growth | 1999-09-27 |
| 768 |
 |
Stevens, Kenneth | Bandwidth optimization in asynchronous NoCs by customizing link wire length | The bandwidth requirement for each link on a network-on-chip (NoC) may differ based on topology and traffic properties of the IP cores. Available bandwidth on an asynchronous NoC link will also vary depending on the wire length between sender and receiver. We explore the benefit to NoC performance ... | | 2010 |
| 769 |
 |
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 |
| 770 |
 |
Mastrangelo, Carlos H. | Batch fabrication of flowable colorimetric pressure sensing particles via surface micromachining | The batch fabrication and test of artificial optical resonator slab-type micro particles (14 μm diameter, 0.7 μm gap) is presented as a means to map absolute pressure within microscopic environments. The pressure-sensing particles consist of a semi-transparent elastic polysilicon shell enclosi... | | 2010 |
| 771 |
 |
Morrow, Carolyn | Baudelaire as seen through Les Fleurs du Mal | Modern phychology emphasizes the similarity of the dream to works of art, especially poetry. The dreamer or the poet works through symbols, which express his inner self, a self largely unknown to the conscious mind.1 There can be no "difference irreductible entre le 'moi' subjectif and le 'je' crea... | | 1964 |
| 772 |
 |
Solomon, Douglas Kip | Bayesian evaluation of groundwater age distribution using radioactive tracers and anthropogenic chemicals | The development of a Bayesian modeling approach for estimation of the age distribution of groundwater using radioactive isotopes and anthropogenic chemicals is described. The model considers the uncertainties associated with the measured tracer concentrations as well as the parameters affecting the ... | | 2012-01-01 |
| 773 |
 |
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 |
| 774 |
 |
McDaniel, Susan | Becoming inventors: women who aspire to invent | Despite growing awareness of women's contributions to technological advances in the past, almost nothing is known about contemporary women inventors and the challenges they face. Although greater attention has been given recently to women's contributions to technology and innovation, understanding... | Inventions; Inventing; Technology | 1990 |
| 775 |
 |
Johnston, Susan S. | Beginning augmentative communication systems | To be unable to produce communicative behavior that can be understood by others represents one of the most frustrating experiences imaginable. Communicating through a communication board or with gestures lessens this frustration but does not eliminate it. Since 1975, remarkable advances have been ma... | Intervention; Challenging behavior; Symbols | 1992 |
