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Creator | Title | Description | Subject | Date |
201 |
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Sekercioglu, Cagan | Chewing lice (phthiraptera) species found on birds along the Aras River, lgdir, Eastern Turkey | Chewing lice were sampled from the birds captured and ringed between September-October 2009 at the Aras River (Yukarı Çıyrıklı, Tuzluca, Iğdır) bird ringing station in eastern Turkey. Eighty-one bird specimens of 23 species were examined for lice infestation. All lice collected from the birds... | | 2011-01-01 |
202 |
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Wu, Yong-Shi | Chiral bosonization and local Lorentz-invariant actions for chiral bosons | We formulate a geometrical theory of self-dual scalar fields in two dimensions with a local Lorentz-invariant action. Path-integral quantization is used to derive chiral bosonization by demonstrating equivalence of correlation functions of currents and energy-momentum tensors in our theory with thos... | Bosonization; String theory; Weyl fermions | 1988-06 |
203 |
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DeTar, Carleton | Chiral logs with staggered fermions | We compute chiral logarithms in the presence of "taste" symmetry breaking of staggered fermions. The lagrangian of Lee and Sharpe is generalized and then used to calculate the logs in π and K masses. We correct an error in Ref. [1]; the issue turns out to have implications for the comparison with ... | Staggered fermions; Chiral logs | 2003-05 |
204 |
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Bohs, Lynn A. | Chloroplast DNA phylogeny of Solanum sect on Las ocarpa | Solanum section Lasiocarpa includes about a dozen species with a center of diversity in the NewWorld tropics. Solanum lasiocarpum and S. repandum (sometimes considered to be conspecific as S. ferox) have an Old World distribution in Asia and the Pacific Islands. Several species in this section produ... | Solanum; trn; Lasiocarpa | 2004 |
205 |
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Capecchi, Mario R. | Choose your target. | The technology of modifying endogenous genes has recently been extended from mice to Drosophila and sheep. Concurrently, genomic sequencing is uncovering thousands of previously uncharacterized genes. Armed with today's technologies, what are our best options for delineating the functions of these n... | Animals; Mice; Sheep | 2000-09-13 |
206 |
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Golden, Kenneth M. | Classical transport in quasiperiodic media | Abstract. Classical transport coefficients such as the effective conductivity or diffusivity of a quasiperiodic medium were observed [1] to depend discontinuously on the frequencies of the quasiperiodicity. For example, for a one-dimensional medium with a potential V(x) = cosx + coskx , the effecti... | Transport; Diffusion; Random | 1991 |
207 |
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Vardeny, Zeev Valentine; Ehrenfreund, Eitan A. | Classification of disorder and extrinsic order in polymers by resonant Raman scattering | Resonant Raman scattering is used to quantify the effect of disorder and extrinsic order on Peierls systems such as (CH)X . We introduce "X plots" in which the phonon and gap distribution are related and characterize the system by the functional dependence of the gap 2 A on the coupling X. For c/s-r... | Peierls systems | 1985-01 |
208 |
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Capecchi, Mario R. | Cleft palate in mice with a targeted mutation in the gamma-aminobutyric acid-producing enzyme glutamic acid decarboxylase 67. | The functions of neurotransmitters in fetal development are poorly understood. Genetic observations have suggested a role for the inhibitory amino acid neurotransmitter gamma-aminobutyric acid (GABA) in the normal development of the mouse palate. Mice homozygous for mutations in the beta-3 GABAA rec... | Animals, Newborn; Crosses, Genetic | 1997-10-14 |
209 |
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Golden, Kenneth M. | Climate change and the mathematics of transport in sea ice | As the boundary layer between the ocean and atmosphere in the polar regions, sea ice is a critical component of the global climate system. As temperatures on Earth have warmed, the Arctic sea ice pack in particular has exhibited a dramatic decline in its summer extent. Indeed, the polar sea-ice pack... | Polar ice; Fluid flow; Complex permittivity | 2009 |
210 |
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Gondolo, Paolo | Clumpy neutralino dark matter | We investigate the possibility to detect neutralino dark matter in a scenario in which the galactic dark halo is clumpy. We find that under customary assumptions on various astrophysical parameters, the antiproton and continuum γ-ray signals from neutralino annihilation in the halo put the strong... | Neutralinos; Clumpiness | 1999-01 |
211 |
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Miller, Joel Steven | Cluster glass state and photoinduced effects on the freezing dynamics in KxCo[Fe(CN)6]y.ZH2O (x-0.16,y-0.72, z-4.4) | The magnetic properties and photoinduced magnetization of a Prussian blue analog, KxCo[Fe(Cn)6]y•ZH2O (x-0.16, y-0.72, z-4.4) were systematically studied. The frequency dependence of the linear ac susceptibility, the irreversibility in the field-cooled/ zero-field-cooled magnetization (MFC /MZFC)... | Hexacyanide; Illumination; Temperatures | 2000 |
212 |
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Armentrout, Peter B. | Cobalt carbene ion: reactions of Co+ with C2H4, cyclo-C3H6 and cyclo-C2H4O | An ion beam apparatus is employed to study the formation of the cobalt carbene ion, CoCH2+. This ion is produced in the endothermic reaction of cobalt ions with ethene and cyclopropane and in an exothermic reaction with ethylene oxide. A model is proposed to account for the dependence of experimenta... | Cobalt carbine; Ion beam; Bond dissociation energy; Reaction cross section; Endothermic reactions | 1981 |
213 |
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Yamaguchi, Ayako | Coding rate and duration of vocalizations of the frog , Xenopus laevis | Vocalizations involve complex rhythmic motor patterns, but the underlying temporal coding mechanisms in the nervous system are poorly understood. Using a recently developed whole-brain preparation from which "fictive" vocalizations are readily elicited in vitro, we investigated the cellular basis of... | | 2012-08-29 |
214 |
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Clayton, Dale H. | Coevolutionary history of ecological replicates: comparing phylogenies of wing and body lice to Columbiform hosts | Phylogenies depict the history of speciation for groups of organisms. Comparing the phylogenies of interacting groups can reveal instances of tandem speciation, or "cospeciation" (Brooks and McLennan, 1991; Hoberg et al., 1997; Paterson and Gray, 1997). Understanding the conditions under which cosp... | Feather lice; Wing lice; Body lice; Cospeciation | 2003 |
215 |
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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 |
216 |
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Vardeny, Zeev Valentine; Raikh, Mikhail E. | Coherent random lasing: trapping of light by the disorder | Recent discovery of the coherent lasing from various disordered materials adds a new dimension to the conventional physics of light propagation in multiply scattering media. It suggests that in the situation, when the propagation of light is diffusive on average, the coherent feedback can be provid... | Coherent random lasing; Coherent lasing; Disorder; Disordered materials; Random lasers; Random resonators; Power Fourier transform; Light propagation | 2004 |
217 |
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Vardeny, Zeev Valentine | Coherent umklapp scattering of light from disordered photonic crystals | A theoretical study of the coherent light scattering from disordered photonic crystals is presented. In addition to the conventional enhancement of the reflected light intensity into the backscattering direction, the so-called coherent backscattering (CBS), the periodic modulation of the dielectri... | Coherent umklapp scattering; Disordered photonic crystals; Coherent backscattering; Bragg | 2001-05 |
218 |
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Coley, Phyllis D. | Coibanoles, a new class of meroterpeniods produced by pycnoporus sanguineus | Three new terpenoids of mixed biosynthetic origin were isolated from the culture filtrate of the endophytic fungus Pycnoporus sanguineus. Their structures were determined by extensive spectroscopic analyses. We have named these tricyclic and tetracyclic metabolites ?coibanoles A?C? in reference to... | | 2012 |
219 |
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Miller, Joel Steven | Collinear ferromagnetism and spin orientation in the molecule-based magnets M[N(CN)2]2 (M=Co,Ni) | Zero-field unpolarized neutron powder diffraction has been used to study the low-T magnetic structure and T-dependent crystal structure of M[N(CN)2]2 (M=Co,Ni). Both compounds show collinear ferromagnetism with spin orientation along the c axis. The results provide the determination of a complete ma... | Magnetic; Diffraction; Structure | 1999 |
220 |
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Armentrout, Peter B. | Collision-induced dissociation dynamics of the [OCS • C2H2]+ complex. A combined experimental and theoretical study | Collision-induced dissociation (CID) of the [OCS • C2H2]+ complex ion with both Xe and Ar over an energy range of 0 to 10 eV in the center of mass frame is studied using a guided ion beam tandem mass spectrometer. The cross sections of the ionic products observed (C,H2S+, OCS+, C2HJ, and S+) are ... | Collision-induced dissociation; Competitive shift; Ethylene Sulfide cation; Kinetic shift; Thioketene cation; Potential energy surface | 2000 |
221 |
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Armentrout, Peter B. | Collision-induced dissociation of Fen+ (n=2-10) with Xe: ionic and neutral iron binding energies | Cross sections for collision-induced dissociation (CID) of Fen+ with Xe, 2≤n≤10, are presented. Experiments were performed on a newly constructed guided ion beam mass spectrometer, the design and capabilities of which are described in detail. The single mechanism for dissociation of iron cluster... | | 1989 |
222 |
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Armentrout, Peter B. | Collision-induced dissociation processes of Nb4+ and Fe4+: fission vs. evaporation | Despite the extensive effort devoted to research on gasphase metal clusters, quantitative thermodynamic data on such species are scarce. Such information is key to understanding and predicting the physical and chemical properties of clusters. Presently, bond energies are available primarily for tr... | Metal clusters; Nobium ions; Iron ions; Fission; Evaporation | 1988 |
223 |
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Coley, Phyllis D.; Kursar, Thomas A. | Colonization of tropical rain forest leaves by epiphylls: effects of site and host plant leaf lifetime | In humid tropical regions, leaves are frequently colonized by epiphylls (Richards 1954, Pocs 1978, 1982). Lichens and liverworts usually dominate, although mosses, algae, and cyanobacteria can also occur (Winkler 1971, Smith 1982). The interactions between epiphylls and host leaves have not been wel... | Tropical forest; Epiphylls; Panama; Hybanthus prunifolius; Light interception | 1993 |
224 |
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Olivera, Baldomero M. | Combined proteomic and transcriptomic interrogation of the venom gland of conus geographus uncovers novel components and functional compartmentalization | Cone snails are highly successful marine predators that use complex venoms to capture prey. At any given time, hundreds of toxins (conotoxins) are synthesized in the secretory epithelial cells of the venom gland, a long and convoluted organ that can measure 4 times the length of the snail's body. In... | | 2014-01-01 |
225 |
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Truong, Thanh | Combined reaction class approach with integrated molecular orbital + molecular orbital (IMOMO) methodology: a practical tool for kinetic modeling | We present a new practical computational methodology for predicting thermal rate constants of reactions involving large molecules or a large number of elementary reactions in the same class. This methodology combines the integrated molecular orbital1molecular orbital (IMOMO) approach with our rece... | IMOMO; Kinetic modeling; Thermal rate constants | 2000 |