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CreatorTitleDescriptionSubjectDate
126 Coley, Phyllis D.Beneficios y costos de defensa en un arbusto del neotrópicoLOS 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; Beneficios2007
127 Coley, Phyllis D.Benefits and costs of defense in a neotropical shrubBenefits 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; Tropics1995
128 Coley, Phyllis D.Between-species differences in leaf defenses of tropical treesRates 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; Alkaloids1987
129 Yamaguchi, AyakoBilateral coordination of vocal pathways in African clawed frogs, Xenopus laevisThis 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 coordination2014
130 Goller, FranzBilateral syringeal contributions to song in the zebra finchAlthough central control of song production has been investigated extensively in the zebra finch (Taeniopygia guttata), much less is known about peripheral vocal motor dynamics during song.Electromyographic activity; Sound souces; Unilateral2004
131 Bromley, Benjamin C.Binary disruption by massive black holes: hypervelocity stars, S stars, and tidal disruption eventsWe examine whether disrupted binary stars can fuel black hole growth. In this mechanism, tidal disruption produces a single hypervelocity star (HVS) ejected at high velocity and a former companion star bound to the black hole. After a cluster of bound stars forms, orbital diffusion allows the black ...2012-01-01
132 Minteer, Shelley D.Bio-solar cells incorporating catalase for stabilization of thylakoid bioelectrodes during direct photoelectrocatalysisThylakoid membranes have been proposed for electrochemical solar energy conversion, but they have been plagued with short term instability. In this paper, thylakoid membranes extracted from Spinacia oleracea were physically adsorbed onto Toray paper electrodes with and without catalase, followed by ...2012-01-01
133 Beckerle, Mary C.Biochemical and molecular characterization of the chicken cysteine-rich protein, a developmentally regulated LIM-domain protein that is associated with the actin cytoskeletonLIM domains are present in a number of proteins including transcription factors, a protooncogene product, and the adhesion plaque protein zyxin. The LIM domain exhibits a characteristic arrangement of cysteine and histidine residues and represents a novel zinc binding sequence (Michelsen et al., ...Zyxin; Cysteine-rich proteins; cCRP; Actin; LIM domains1994
134 Olivera, Baldomero M.Biochemical characterization of ?M-RIIIJ, a Kv1.2 channel blocker: evaluation of cardioprotective effects of ?M-conotoxinsConus snail (Conus) venoms are a valuable source of pharmacologically active compounds; some of the peptide toxin families from the snail venoms are known to interact with potassium channels. We report the purification, synthesis, and characterization of ?M-conotoxin RIIIJ from the venom of a fish-...2010
135 Olivera, Baldomero M.Biochemical studies of ω-conotoxin GVIA; a peptide toxin inhibiting voltage-sensitive Ca++ channelsThe fish-hunting cone snails use their venom to quickly paralyze their more agile prey. In the last few years, our laboratories have carried out a program of analyzing biologically active components present in the fish-hunting cone snail venoms (Cruz et al. 1985; Olivera et al. 1985). We have concen...Conotoxins; Calcium channels; Conus geographus; Venom1987
136 Horvath, Martin P.Biochemistry of Cone Snail toxin activationCone snails use venom to capture prey for food and for defense against predators. The venom is composed of over 100 active peptides that target specific receptors in the nervous system. Several of these peptides have the potential to become medicine for treatment of pain, depression, seizures, and n...biochemistry; horvath; olivera; cone snail; toxin; nmda; elution; buffers; sparse matrix test; protease; protein; purification; neurotoxin; conotoxin2013
137 Seger, Jon; Davidson, Diane W.Biological richness of desertsA desert is "waterless," "treeless," "barren," "remote," "uninteresting," and "presumably uninhabited," according to the authoritative Oxford English Dictionary. The word is derived from deserere, a Latin verb meaning "to leave." In English, to desert is still to "abandon," "forsake," or "fail." Bec...Desert life; Desert biodiversity1995
138 Clayton, Dale H.Biology, ecology, and evolution of chewing liceChewing 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 lice2003
139 Sekercioglu, CaganBirding economics: conservation through commodificationIn the long-run, the quality of our birding (and the length of our lists) depends on our success in conserving birds and their habitats. Who would not love to see a Labrador Duck during a pelagic trip, have Carolina Parakeets fly overhead on a CBC, or photograph a Bachman's Warbler foraging in a can...2003-01-01
140 Olivera, Baldomero M.Block of Shaker K+ channels by ĸ-conotoxin PVIIA is state dependentĸ-conotoxin PVIIA is the first conotoxin known to interact with voltage-gated potassium channels by inhibiting Shaker-mediated currents. We studied the mechanism of inhibition and concluded that PVIIA blocks the ion pore with a 1:1 stoichiometry and that binding to open or closed channels is very d...Conotoxins; k-conotoxin PVIIA; Potassium channel blockers; Shaker K+ channels1999
141 Mattis, Daniel C.Bond asymmetry and high-Tc superconductivityWe propose a simple mechanism, anchored in weak-coupling BCS theory, which ties together the following facts: high Tc; quasi two dimensionality; orthorhombic distortion and/or disordered lines of oxygen; proximity to a metal-insulator transition; and anomalously small isotope effects.Distortion; Singularity; Oxygen1987
142 Armentrout, Peter B.The bond energy of ReO+: Guided ion-beam and theoretical studies of the reaction of Re+ (7S) with O2The kinetic-energy dependence of the Re+ + O2 reaction is examined using guided ion-beam mass spectrometry. The cross section for ReO+ formation from ground state Re+ (7S) is unusual, exhibiting two endothermic features. The kinetic energy dependence for ReO+ formation is analyzed to determine D0(Re...2013-01-01
143 Morse, Michael DavidThe bond energy of Rh?In a spectroscopic investigation of jet-cooled Rh2 by the resonant two-photon ionization method, an abrupt predissociation threshold is observed in a dense set of vibronic levels at 19 405?4 cm-1. Based on the high density of states expected in the rhodium dimer, the sharp definition of the prediss...1997
144 Wu, Yong-ShiBosonization of one-dimensional exclusons and characterization of Luttinger liquidsWe achieve a bosonization of one-dimensional ideal gas of particles obeying exclusion statistics A (so called A exclusons) at low temperatures, resulting in a new variant of c = 1 conformal field theory with compactified radius R = √1/λ. These ideal excluson gases exactly reproduce the low-7 crit...Bosonization; Exclusons; Ideal gas; Luttinger liquids1995-07
145 Mattis, Daniel C.Bound exciton and hole: an exactly solvable three-body model in any number of dimensionsA three-body problem, concerning two holes in a nondegenerate valence band and a single electron in a conduction band, with strong short-range interactions, is solved exactly in any number of dimensions. The binding depends nontrivially on the ratio of the valence to conduction bandwidths (i.e., on ...Three-body problem; Trion; Bond energies1982-09
146 Golden, Kenneth M.Bounds on the complex permittivity of matrix-particle compositesThe complex effective dielectric constant E* of matrix-particle composites is considered. Such composites consist of separated inclusions of material of type one embedded in a matrix of material of type two. The analytic continuation method is used to derive a series of bounds which incorporate a n...Random; Parameters; Continuation1995
147 Golden, Kenneth M.Bounds on the complex permittivity of sea iceAn analytic method for obtaining bounds on effective properties of composites is applied to the complex permittivity e* of sea ice. The sea ice is assumed to be a two-component random medium consisting of pure ice of permittivity e1, and brine of permittivity e2. The method exploits the properties ...Brine; Properties; Geometry1995
148 Wu, Yong-ShiBPS R-balls in N = 4 SYM on R × S3, quantum Hall analogy and AdS/CFT holographyIn 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
149 Lupton, John MarkBragg scattering from periodically microstructured light emitting diodesWe present a simple method of generating a periodic wavelength scale structure in the optically active layer of a light emitting diode. This is achieved by solution deposition of a light emitting polymer on top of a corrugated substrate. The periodic structure allows waveguide modes normally trapped...Bragg scattering; Periodic wavelength scale structure2000
150 Wu, Yong-ShiBraid group and anyons on a cylinderIn this paper we present a careful reexamination of anyons on a cylinder (or annulus), starting from the braid-group analysis. Proper attention is paid to the topological features arising from the existence of noncontractible loops. The rule for putting anyons on a square lattice has to be modified ...Braid group; Annulus1991-02
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