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Creator | Title | Description | Subject | Date |
| 1 |
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Bohs, Lynn A. | Cyphomandra (Solanaceae) | Unusual ecological aspects of Cyphomandra include its pollination syndrome and herbivore relationships. Male euglossine bees may be important pollinators of Cyphomandra flowers, and the primary attractants may not be pollen, but odor substances secreted by the anther connectives. Specialized herbi... | Cyphomandra; Latin America | 1994 |
| 2 |
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Bohs, Lynn A. | New species of Solanum section Cyphomandropsis (Solanaceae) from Bolivia | A new species of Solanum sect. Cyphomandropsis (Solanaceae), S. hibernum, is described from the western part of Dept. Santa Cruz, Bolivia. Its strongly discolorous leaves densely covered below with white dendritic hairs distinguish it from the other species in the section. | Solanum hibernum; Cyphomandropsis | 1994 |
| 3 |
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Vardeny, Zeev Valentine | Recombination kinetics in ?-Si:H | Mort et al.1 reinterpreted our data on the relaxation of photoinduced absorption (PA) in a-Si:H. 2 We want to show that the proposed interpretation contradicts one basic feature of the data while our original interpretation is in good agreement with experiment. | Hydrogenated amorphous silicon; a-Si:H; Recombination kinetics; Photoinduced absorption; Decay; Relaxation | 1981 |
| 4 |
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Bohs, Lynn A. | Transfer of Cyphomandra (Solanaceae) and its species to Solanum | Data from recent molecular studies demonstrate that the genus Cyphomandra is nested within Solanum. Recognition of Cyphomandra as a separate genus therefore is not tenable unless Solanum is broken up into smaller monophyletic units. All Cyphomandra species are transferred to Solanum, necessitating t... | Cyphomandra; Solanum | 1995 |
| 5 |
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Sperry, John S. | Evaluation of Murray's law in Psilotum nudum (Psilotaceae), an analogue of ancestral vascular plants | Previous work has shown that the xylem of seed plants follows Murray's law when conduits do not provide structural support to the plant. Here, compliance with Murray's law was tested in the stem photosynthesizer Psilotum nudum, a seedless vascular plant. Psilotum nudum was chosen because the central... | Conduit furcation number; hydraulic architecture; Murray's law | 2005 |
| 6 |
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Lupton, John Mark | Efficient dipole-dipole coupling of Mott-Wannier and Frenkel excitons in (Ga,In)N quantum well/polyfluorene semiconductor heterostructures | We investigate interactions between Mott-Wannier (MW) and Frenkel excitons in a family of hybrid structures consisting of thin organic (polyfluorene) films placed in close proximity (systematically adjusted by GaN cap layer thickness) to single inorganic [(Ga, In)N/GaN] quantum wells (QWs). Charac... | Mott-Wannier; Frenkel; Excitons; Dipole-dipole coupling; Semiconductor heterostructures | 2007-07 |
| 7 |
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Miller, Joel Steven | Involvement of titanocene and related species in the reduction of dinitrogen and olefins | Summary Four sequential products have been spectrally detected in the reduction by sodium of dicyclopentadienyltitanium(iv) dichloride: [(77-Cp)2TiCl]2, [(77-Cp)2-Ti]1-2, [(77-Cp)(C5H4)TiH]x, and (77-Cp)(C5H4)TiH2Ti- (C5H4)(77-Cp) ("stable titanocene"); the second of these reacts rapidly and rever... | Hydrolysis; Sodium; Pressure | 1972 |
| 8 |
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Clayton, Dale H. | Experimental test of the importance of preen oil in Rock Doves (Columba livia) | Most species of birds have a uropygial gland, also known as a preen gland, which produces oil that birds spread through their plumage when preening. The plumage of waterfowl deprived of uropygial oil becomes brittle and is subject to breakage. | Columba livia; Columbiformes; Preen oil; Ectoparasites; Columbicola columbae; Campanulotes compare; Plumage | 2003 |
| 9 |
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Clayton, Dale H. | Influence of bill shape on ectoparasite load in Western Scrub-Jays | Populations of the Western Scrub-Jay (Aphelocoma californica) have bills specialized for feeding in their respective habitats. Populations in oak habitat have hooked bills, whereas those in pinyon habitat have pointed bills with a reduced maxillary overhang. Work on other bird species shows that the... | Ectoparasite load; Bill shape; Aphelocoma californica | 2002 |
| 10 |
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Clayton, Dale H. | Biology, ecology, and evolution of chewing lice | Chewing lice are small, dorsoventrally compressed insects and are parasites of virtually all birds (Fig. 1) and some mammals (Fig. 2). Many chewing lice are host specific, being found on only a single species of host. All chewing lice are permanent ectoparasites and complete their entire life c... | Chewing lice | 2003 |
| 11 |
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Vardeny, Zeev Valentine | Ultrafast studies of laser-action in poly-(p-pherylene vinylene) films | The recent demonstration of emission spectral narrowing in ∏-conjugated polymer has stirred widespread interest to the phenomenon of laser-action in these materials. It is now generally believed that spectral narrowing in superior polymer films is caused by amplified spontaneous emission (i.e. si... | Ultrafast studies; Poly-(p-pherylene vinylene); PPV; Laser-action | 1999 |
| 12 |
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Adler, Frederick R. | Optimization, conflict, and nonoverlapping foraging ranges in ants | An organism's foraging range depends on the behavior of neighbors, the dynamics of resources, and the availability of information. We use a well-studied population of the red harvester ant Pogonomyrmex barbatus to develop and independently parameterize models that include these three factors. The mo... | Colony; Space; Model | 2003 |
| 13 |
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Bohs, Lynn A. | Phylogeny of the Cyphomandra clade of the genus Solanum (Solanaceae) based on ITS sequence data | 13 major clades can be recognized within the genus Solatium (Solanaceae) based on chloroplast DNA sequence data. One of these is the Cyphomandra clade, which includes about 50 neotropical species. These have traditionally been placed into two or three sections: S. section Pachyphylla (formerly recog... | Cyphomandra; ITS; osmophores; self-incompatibility; Solanum | 2007 |
| 14 |
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Clayton, Dale H.; Bush, Sarah Elizabeth | Comparative transmission dynamics of competing parasite species | Competition-colonization trade-off models explain the coexistence of competing species in terms of a trade-off between competitive ability and the ability to colonize competitor-free patches of habitat. A simple prediction of these models is that inferior competitors will be superior dispersers. Thi... | Bird lice; Campanulotes compar; Coexistence; Colonization; Columba livia; Columbicola columbae; Competition; Dispersal; Parasite; Phoresis; Specificity; Pseudolynchia canariensis; Phthiraptera | 2008 |
| 15 |
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Clayton, Dale H. | Reciprocal natural selection on host-parasite phenotypes | Coevolution is evolution in one species in response to selection imposed by a second species, followed by evolution in the second species in response to reciprocal selection imposed by the first species. Although reciprocal selection is a prerequisite of coevolution, it has seldom been documented in... | Host-parasite phenotypes; Ectoparasites; Virulence; Fitness | 1999 |
| 16 |
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Vardeny, Zeev Valentine | Photo induced infrared active phonons in trans polyacetylene | We measured photogenerated ir active phonons in trans-(CH) by the photoinduced absorption technique. A correlation was found to exist with a photoinduced absorption band in which electronic transitions are involved. Our results show photoproduction of free charged defects with long lifetimes. | Photoinduced phonons; Trans polyacetylene | 1983-06 |
| 17 |
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Bohs, Lynn A. | Crossing studies in Cyphomandra (Solanaceae) and their systematic and evolutionary significance | A crossing program involving eight species of Cyphomandra was instituted to elucidate systematic relationships between the taxa and evolutionary mechanisms operating in the genus. The results show that gametophytic self-incompatibility is widespread in Cyphomandra. Pollen tubes were able to reach ... | Solanum maternum; Crossing studies | 1991 |
| 18 |
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Clayton, Dale H.; Bush, Sarah Elizabeth | Is melanin a defense against feather-feeding lice? | The adaptive basis of plumage color has received much attention, including the finding that color can reveal information about parasite loads to potential mates. A related possibility, that color may be a direct defense against parasites, has received less attention. | Columba livia; Columbiformes; Ectoparasites; Columbicola columbae; Campanulotes compare; Plumage color; Eumelanin; Preening | 2006 |
| 19 |
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Vardeny, Zeev Valentine | Coherent phonon generation and detection by picosecond light pulses | Using the picosecond pump and probe technique we have detected oscillations of photoinduced transmission and reflection in thin films of α-As2Te3 and cis-polyacetylene. These oscillations are due to the generation and propagation of coherent acoustic phonons in the film. We discuss the generation ... | a-As2Te3; Cis-polyacetylene; Pump and probe technique | 1984-09 |
| 20 |
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Vardeny, Zeev Valentine | Picosecond optical generation and detection of phonon waves in a-As2Te3 | Using the pump and probe technique we have observed oscillations of photoinduced transmission in thin films of a-As2Te3. The oscillations have periods of 70-240 ps, depending on sample thickness. We ascribe these to phonon propagation in the films. Thermal expansion and carrier deformation potenti... | Picosecond optical generation; a-As2Te3; Pump and probe technique | 1984 |
| 21 |
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Wu, Yong-Shi | Quantum dynamics and statistics of vortices in two-dimensional superfluids | The phase change of the wave function of a superfluid film as a vortex moves around a closed path counts the number of superfluid particles enclosed by that path. This result is used to investigate whether such vortices obey "fractional statistics." We conclude that this is not the case in compress... | Superfluid films; Vortices; Fractional statistics | 1985-12 |
| 22 |
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Bohs, Lynn A. | Solanum allophyllum (Miers) Standl. and the generic delimitation of Cyphomandra and Solanum (Solanaceae) | Solanum allophyllum has previously been placed in Cyphomandra and in Solarium. This species has a number of morphological features not found in Cyphomandra, but has been included in the genus because it has a similar growth habit, three-leaved sympodial units with inflorescences in branch forks, and... | Solanum allophyllum; Cyphomandra | 1989 |
| 23 |
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Vardeny, Zeev Valentine | Cylindrical micolasers and light emitting devices from conducting polymers | Substantially improved, photopumped polymer lasers are demonstrated using microrings and microdisks of various diameters D ranging from 5 to 200 mm. Various cavity-dependent laser modes were observed, which for D,10 mm were dominated by a single longitudinal mode with linewidth of less than 1 Å. Th... | Cylindrical micolasers; OLED; Photopumped polymer lasers; Microrings; Microdisks; Microlasers | 1998 |
| 24 |
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Vardeny, Zeev Valentine | Photoinduced infrared activity in polyacetylene | Photoexcitation of trans - but not cis -polyacetylene, results in the appearance of strongly-ir-active local modes at 1370 and 1260 cm-1. This observation demonstrates that the photogeneration of self-localized charge carriers is unique to the trans isomer. In spite of their localization the kineti... | Photoinduced infrared activity; Photoexcitation | 1983-06 |
| 25 |
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Mishchenko, Eugene | Thermal conductivity of a two-dimensional electron gas with Coulomb interaction | We demonstrate that forward electron-electron scattering due to Coulomb interaction in a two-dimensional ballistic electron-gas leads to the (T ln T)21 temperature dependence of the thermal conductivity, which is logarithmically suppressed compared to the usual Fermi-liquid behavior. | Coulomb drag; Coulomb interaction | 2003-01 |
