Filters: Collection: "ir_uspace"
| Creator | Title | Description | Subject | Date | ||
|---|---|---|---|---|---|---|
| 26 |
 |
Chamberlin, Ralph V. | The black widow spider and its varieties in the United States | The spiders of the genus Latrodectus, a member of the family Theridiidae, popularly known as the line-weavers or comb-footed spiders, are of world-wide distribution in tropical and sub-tropical latitudes. The genus " comprises those very interesting spiders which, under various local names, have bee... | 1935-06 | |
| 27 |
 |
Gesteland, Raymond F.; Krapcho, Karen J.; Talbot, Phil; Thulin, Craig | Crystallization of the MS2 translational repressor alone and complexed to bromouridine | The coat protein from the MS2 bacteriophage plays a dual role by encapsidating viral RNA and also by binding RNA as a translational repressor. In order to study the isolated dimer in a conformation not influenced by capsid interactions, a mutant molecule was crystallized that is defective in capsid ... | Crystallization; RNA Bacteriophage; RNA Hairpin; Translational Repressor | 1995 |
| 28 |
 |
Coley, Phyllis D. | Red coloration of tropical young leaves: a possible antifungal defense? | Many woody species in humid tropical forests synchronously flush entire canopies of young red leaves. Numerous unsuccessful attempts have been made to explain the adaptive value of this visually striking phenomenon. In the humid tropics, fungal attack is a potentially important source of mortality f... | Herbivory; Anthocyanin; Antifungal defense; Atta columbica; Panama; Leaf-cutting ants; Tropics; Young leaves | 1989 |
| 29 |
 |
Boehme, Christoph | Transport and recombination through weakly coupled localized spin pairs in semiconductors during coherent spin excitation | Semianalytical predictions for the transients of spin-dependent transport and recombination rates through localized states in semiconductors during coherent electron-spin excitation are made for the case of weakly spin-coupled charge-carrier ensembles. The results show that the on-resonant Rabi freq... | Larmor frequency; Larmor separations | 2006-12 |
| 30 |
 |
O'Rourke, Dennis H. | Introduction: origins and settlement of the indigenous populations of the Aleutian Archipelago | The series of papers in this special issue of Human Biology use an interdisciplinary approach to address regional questions and to integrate disparate Aleutian data into a broad, synthetic effort. The contributors leverage decades of data on Aleut origins, biogeography, and behavior through integrat... | 2010 | |
| 31 |
 |
Morse, Michael David | ???X??+ band systems of jet-cooled ScCo and YCo | Rotationally resolved resonant two-photon ionization (R2PI) spectra of ScCo and YCo are reported. The measured spectra reveal that these molecules possess ground electronic states of 1?+ symmetry, as previously found in the isoelectronic Cr2 and CrMo molecules. The ground state rotational constant... | 2010 | |
| 32 |
 |
Vardeny, Zeev Valentine | Phonon anomalies in Cu halides | A great number of the observed phonon anomalies in the zinc-blende phase of Cu-halide crystals are explained by means of a dynamical model. It is assumed that a Cu ion populates four equivalent off-center sites or its ideal position. The off-center Cu+ population is temperature and pressure dependen... | Phonon anomalies; Cu-halide crystals; Cuprous halides | 1979-03 |
| 33 |
 |
Vardeny, Zeev Valentine | Disorder-induced TA Raman lines in mixed Cu-halide crystals | The Raman spectra of CuClxBr1=x and CuBrxI1=x solid solutions are shown to contain extremely intense disorder-induced first-order TA phonons. The intensity of these lines is a function of the concentration x, and is highest in CuCl0.6oBr0.40. The TA spectrum, well resolved at low temperature, fits... | Cuprous halides; CuBr; CuCl; CuI; mixed Cu-halide crystals | 1979-03 |
| 34 |
 |
Symko, Orest George | Does the quasicrystal AlCuFe follow Ohm's law? | We present the first measurements of the electrical I-V characteristics of AlCuFe quasicrystalline thin films processed by solid state interdiffusion of magnetron sputtered Al, Cu, and Fe layers. Despite the peculiar electronic properties of quasicrystals, our results show that those samples follow ... | AlCuFe; Quasicrystal | 1994-10 |
| 35 |
 |
Olivera, Baldomero M.; McIntosh, J. Michael | Novel post-translational modification involving bromination of tryptophan: identification of the residue, L-6-bromotryptophan, in peptides from Conus imperialis and Conus radiatus venom | We report a novel post-translational modification involving halogenation of tryptophan in peptides recovered from the venom of carnivorous marine cone snails (Conus). The residue, L-6-bromotryptophan, was identified in the sequence of a heptapeptide, isolated from Conus imperialis, a worm-hunting... | Conotoxins; Conus imperialis; Conus radiatus; L-6-bromotryptophan | 1997 |
| 36 |
 |
Bohs, Lynn A. | Phylogenetic relationships in solanum section Androceras (Solanaceae) | The Leptostemonum clade of Solanum contains approximately 350-450 species, including the cultivated eggplant, S. melongena. This clade is characterized by the presence of prickles and apically attenuate anthers. Solanum section Androceras, the focus of this study, is a group of ca. 12 species belon... | 2010-12-01 | |
| 37 |
 |
Olivera, Baldomero M. | Defining a clade by morphological, molecular, and toxinological criteria: distinctive forms related to Conus praecellens A. Adams, 1854 (Gastropoda: Conidae) | We carried out a definition of the Conus praecellens A. Adams, 1854, species group using a combination of comparative morphological data, molecular phylogeny based on standard genetic markers, and toxinological markers. Prior to this work, Conus praecellens was generally postulated to belong to a cl... | Turriconus; 12SrRNA sequences; Phylogenetic analysis; Conus praecellens; Exogenes | 2010 |
| 38 |
 |
Boehme, Christoph | Spin-dependent recombination - an electronic readout mechanism for solid state quantum computers | It is shown that coherent spin motion of electron-hole pairs localized in band gap states of silicon can influence charge carrier recombination. Based on this effect, a readout concept for silicon based solid-state spin-quantum computers as proposed by Kane is suggested. The 31P quantum bit (qbit) i... | Spin readout; qbit; Spin-dependent recombination | 2002-10 |
| 39 |
 |
Stringfellow, Gerald B. | Modulated contrast and associated diffracted intensity of GaPySb1-y layers grown using organometallic vapor phase epitaxy | We have investigated the modulated structures and its associated diffracted diff_x000B_use intensity, of organometallic vapor phase epitaxially grown GaPSb (001) layers by using transmission electron microscopy (TEM) and transmission electron diff_x000B_raction (TED). The TEM results reveal the co-e... | Organometallic vapor phase epitaxy; GaPySb1-y layers; Modulated contrast; Diffracted intensity | 2008 |
| 40 |
 |
Wu, Yong-Shi | Observable effects of the quantum adiabatic phase for noncyclic evolution | It is pointed out that, contrary to naive expectation, the gauge structure or Berry connection recently found in slowly varying quantum systems gives rise to observable effects even for noncyclic evolutions corresponding to open paths in parameter space. We propose to test such effects in muon spin ... | Adiabatic phases; Noncyclic evolution; Eigenstates | 1988-12 |
| 41 |
 |
Miller, Jan D. | Thermogravimetric/Mass spectrometric (TG/MS) characterization of toner particles from photocopied wastepaper and the impact of these features on flotation deinking | Flotation deinking of photocopies from office waste is known to be much more difficult than the flotation deinking of newsprint. In this regard, research has been undertaken to better understand the phenomena which account for the poor efficiency in the flotation deinking of such office waste. Durin... | Photocopied paper; Recycling; Deinking; Flotation; Thermal decomposition; Thermogravimetry; Mass spectrometry; Differential scanning calorimeter; Toner particles | 1995 |
| 42 |
 |
Chaudhuri, Reaz A. | Three-dimensional singular stress field at the front of a crack and lattice crack deviation (LCD) in a cubic single crystal plate | A novel eigenfunction expansion technique, based in part on separation of the thickness variable, is developed to derive three-dimensional asymptotic stress fields in the vicinity of the front of a semi-infinite through-crack weakening an infinite plate made of a homogeneous cubic single crystal. C... | 2010-05-12 | |
| 43 |
 |
Welfare state expenditures and the redistribution of well-being: children, elders, and others in comparative perspective | This paper estimates the redistributive effects of welfare state expenditures on social and economic disparities in the economic well-being of citizens in ten nations. Data from the Organization for Economic Cooperation and Development (OECD) and other sources for cash and non-cash social welfare... | Social programs; Social work; Low-income; Public assistance | 2004-10-19 | |
| 44 |
 |
Pascucci, Valerio | Exploring power behaviors and trade-offs of in-situ data analytics | As scientific applications target exascale, challenges related to data and energy are becoming dominating concerns. For example, coupled simulation workflows are increasingly adopting in-situ data processing and analysis techniques to address costs and overheads due to data movement and I/O. However... | 2013-01-01 | |
| 45 |
 |
Dintelman, Sue Marie Thompson | Design and implementation of a relational data base system for a minicomputer | A data base system provides the advantages of centralized control of data including increased data independence. Design specifications for a low level relational data base interface are given in the form of a formal description which separates the implementation details from the description of the ... | Data base system | 1977 |
| 46 |
 |
Chamberlin, Ralph V. | A summary of the known North American Amaurobiidae | A recent survey o f the spiders o f the family Amaurobiidae, sens, str., in the collection o f the University o f Utah made it evident that a number o f species and also generic groups occurring more especially in the western states had heretofore escaped detection and naming. It also seemed evident... | 1947-10-12 | |
| 47 |
 |
Mallat, Chibli | From Islamic to Middle Eastern Law A Restatement of the Field (Part I) | Any approach to law in the region known as Near or Middle East is doubly selective, as the historical depth of the tradition enhances the diversity of cultures active in the contemporary world. Law is a particular example where the contrasted set-up which characterizes twenty-five or so modern Natio... | 2004 | |
| 48 |
 |
Bohs, Lynn A. | Ethnobotany of the genus Cyphomandra (Solanaceae) | Plants of the genus Cyphomandra (Solanaceae) have long been utilized for their edible fruits in their native Latin America. The best-known species is the domesticated tree tomato or tamarillo, Cyphomandra betacea. This species, popular as a raw or cooked fruit, is widely cultivated in Andean South ... | Cyphomandra; Cyphomandra betacea; Alkaloids | 1989 |
| 49 |
 |
Bhanu, Bir | Segmentation of images having unimodal distributions | A gradient relaxation method based on maximizing a criterion function is studied and compared to the nonlinear probabilistic relaxation method for the purpose of segmentation of images having unimodal distributions. Although both methods provide comparable segmentation results, the gradient method h... | Gradient relaxation method; Image segmentation; Segmentation algorithm | 1982 |
| 50 |
 |
Mallat, Chibli | Introduction a la pensee de Robert Fossaert | Cette introduction est surtout un appel, pour paraphraser Althusser sur Marx (<< II faut lire Le Capital, et se mettre au travail) a un bon usage de Fossaert : II faut lire La Societe, et se mettre au travail . Le lecteur trouvera une lucarne de l'universalisme de Fossaert dans la section du b... | 2009 |