Filters: Date: "1997" Collection: ir_uspace
| Creator | Title | Description | Subject | Date | ||
|---|---|---|---|---|---|---|
| 76 |
 |
Gardner, Reed M. | Invasive Pressure Monitoring | Biomedical Informatics | 1997 | |
| 77 |
 |
Stark, Cynthia A. | Is pornography an action?: the causal vs. the conceptual view of pornography's harm | In the past few decades, a new position concerning the legal regulation of sexually explicit materials has emerged, disrupting the traditional polarity between conservatives (who generally support regulation) and liberals (who generally oppose regulation). This new position is an avowedly feminist v... | 1997 | |
| 78 |
 |
Vardeny, Zeev Valentine | Laser action in conducting polymers | We discuss both cooperative radiation and stimulated emission and consider their role in spectral narrowing of luminescent conducting polymers. We argue that cooperative radiation is favored in films with poor optical confinement. On the other hand, directional stimulated emission can be observed in... | Laser action; Cooperative radiation; Stimulated emission; PPV; Disubstituted polyacetylene; Excitons; Spectral narrowing; Plastic lasers; Superfluorescence; Microcavity lasers | 1997 |
| 79 |
 |
Vardeny, Zeev Valentine; Gellermann, Werner | Laser properties of luminescent conducting polymers in open resonators | We have investigated the lasing properties of several luminescent conducting polymers, i.e. DOO-PPV and the bi-substituted polyacetylenes PDPA-nBu, and PHJPA, dissolved in various polar and non-polar solvents. PP V polymers emit with high quantum efficiencies in broad emission bands centered in the ... | Lasing; Amplified spontaneous emission; Spectral narrowing | 1997 |
| 80 |
 |
Miller, Joel Steven; Epstein, Arthur J. | Lattice- and spin-dimensionality crossovers in a linear-chain-molecule-based ferrimagnet with weak spin anisotropy | [MnOEP][HCBD], a member of the metalloporphyrin family of donor-acceptor molecule-based magnets, consists of isolated ferrimagnetic chains of alternating S=2, [MnOEP], and s=1/2, [HCBD] units (OEP=octaethylporphyrinato and HCBD=hexacyanobutadiene). Analysis of the exchange pathways reveals an exchan... | Magnetic; Magnetization; Interchain | 1997 |
| 81 |
 |
Mallat, Chibli | The Lebanese Legal System | Lebanon was established in its present borders in 1920, in the wake of World War I and the collapse of the Ottoman empire. It acquired the main elements of its judicial and legal systems under the French mandate (1920-1943), and has retained most of them to date. | 1997 | |
| 82 |
 |
Francis, Leslie | Legal truth and moral realism | This January, the United States Supreme Court heard oral argument in appeals from two controversial "right to die" cases; decisions in the cases are expected by the end of the term.1 The Ninth Circuit case held that Washington's ban on assisted suicide, including physician-assisted suicide, violate... | Suicide; Dying; Ethics | 1997 |
| 83 |
 |
Kieda, David B. | Limits on the isotropic diffuse flux of ultrahigh energy gamma radiation | Diffuse ultrahigh energy g radiation can arise from a variety of astrophysical sources, including the interaction of 1020 eV cosmic rays with the 2.7 K microwave background radiation or the collapse of topological defects created in the early Universe. We describe a sensitive search for diffuse g ... | G rays; Ultrahigh energy; Muons; Cosmic rays | 1997 |
| 84 |
 |
Miller, Joel Steven; Epstein, Arthur J. | Magnetic phase diagram of a molecule-based ferrimagnet: weak ferromagnetism and multiple dimensionality crossovers | A detailed study of the magnetic behavior of the molecule-based magnet, [MnOEP][HCBD], (OEP=mesooctaethylporphyrinato, HCBD=hexacyanobutadiene) from 1.7 to 20 K was performed. The earlier reported magnetic transition at 19.6 K, ascribed to a crossover from a one-dimensional Heisenberg-like ferrimag... | Transition; Temperature; Magnetization | 1997 |
| 85 |
 |
Miller, Jan D. | Magnetic separation for wastepaper recycle mills | An alternative approach to the conventional washing and flotation techniques for de-inking of mixed office waste (MOW) is magnetic separation. The use of magnetic de-inking has great potential to improve the efficiency of ink removal due to the magnetic content of toners. It is shown experimen... | Deinking; Paper pulp; Wastepaper; Magnetic separation | 1997 |
| 86 |
 |
Liu, Feng | Magnetization on vicinal ferromagnetic surfaces | Using Ising model Monte Carlo simulations, we show a strong dependence of surface magnetization on surface miscut angle. For ferromagnetic surfaces, when surface spin exchange coupling is larger than that of the bulk, the surface magnetic ordering temperature decreases, toward the bulk Curie tempera... | Vicinal ferromagnetic surfaces; Surface magnetization; Surface miscut angle | 1997 |
| 87 |
 |
Landesman, Bruce M. | Margalit, Avishai. The decent society | The title of this book will surely pique the interest of political philosophers who have spent much time and energy in recent decades trying to capture the idea of justice. Margalit believes that in the quest for justice, decency has been overlooked. A decent society may or may not be a step to a ju... | Humiliate; Respect; Justice | 1997 |
| 88 |
 |
Chuaqui, Miguel Basim | Meditaci?n | I grew up in Chile during the 70's, and early 80's, a time of political upheaval and economic distress in Chile, and this has probably exerted as strong an influence on my musical outlook as any other aspect of Chilean culture. While I distrust "political art," I do have an abiding desire for my mu... | 1997 | |
| 89 |
 |
Lindstrom, Gary E. | Migrating relational data to an OODB: strategies and lessions from a molecular biology experience | The growing maturity of OODB technology is causing many enterprises to consider migrating relational databases to OODBs. While data remapping is relatively straightforward, greater challenges lie in economically and non-invasively adapting legacy application software. We report on a genetics labora... | OODB; Relational data; Data migration | 1997 |
| 90 |
 |
Cohen, Elaine | Minimum distance queries for polygonal and parametric models | Calculation of the minimum distance to a geometric object or the minimum separation between objects is a fundamental problem that has application in a variety of arenas. Minimum separation queries for sculptured surfaces are believed particularly difficult, yet are increasingly important as modeli... | Minimum separation; Minimum distance; Virtual prototyping | 1997 |
| 91 |
 |
Beckerle, Mary C. | Molecular dissection of a LIM domain | LIM domains are novel sequence elements that are found in more than 60 gene products, many of which function as key regulators of developmental pathways. The LIM domain, characterized by the cysteine-rich consensus CX2CX16_23HX2CX2CX2CX16_21CX2-3(C/H/ D), is a specific metal-binding structure tha... | LIM domains; Metal-binding; Zyxin; Cysteine-rich proteins | 1997 |
| 92 |
 |
Goller, Franz | Motor control of crystallized song is modified by sensory feedback | Song production requires precisely coordinated activity in the respiratory and syringcal (vocal organ) muscles. Crystallized adult song is characterized by acoustic and motor stereotypy which does not require auditory feedback, suggesting it is represented by fixed central motor programs. To determ... | Air injection; Auditory feedback; Pressure | 1997 |
| 93 |
 |
Goller, Franz | Muscular control and biomechanics of the songbird syrinx | In songbirds the vocal organ, the syrinx, is controlled by six bilateral muscles, the functional roles of which have been studied indirectly, but not directly. We filmed the syrinx with an endoscope while electrically stimulating individual intrinsic muscles on one side. | Syringeal; Medial labium; Vocal organ | 1997 |
| 94 |
 |
Seger, Jon | Natural history and evolution of paper-wasps | Paper-wasps occupy a special place in the history of animal behavior. Temperate species o f Polistes are large, beautiful, intelligent, adaptable, easy to observe, and thoroughly committed to social life. They are also aptly named, being intensely political, in the limited sense that any nonhuman an... | Individuals; Excellent; Phylogeny | 1997 |
| 95 |
 |
Vardeny, Zeev Valentine; Gellermann, Werner | Near-infrared ps transient photoinduced absorption in conjugated systems | We demonstrate the use of a color center laser in a pump-and-probe correlation technique which enables us to extend the probe spectral range into the infrared. As a result, we find strong photoinduced infrared absorption in several 7t-conjugated polymers and oligomers. We associate this absorption w... | Ultrafast spectroscopy; Color center laser; Photoinduced absorption; Singlet excitons; Even parity states; Odd parity states; Infrared absorption | 1997 |
| 96 |
 |
Jorgensen, Erik | Neural plasticity | Neural plasticity refers to functional changes in the nervous system and therefore encompasses a range of phenomena from changes at synapses observed on a microscopic scale to changes in behavior observed in the whole animal. These diverse phenomena are related since changes in synapses are believ... | Synapses; Nervous System; Development | 1997 |
| 97 |
 |
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 |
| 98 |
 |
Beckerle, Mary C. | Nuclear-cytoplasmic shuttling of the focal contact protein, zyxin: a potential mechanism for communication between sites of cell adhesion and the nucleus | Integrin-dependent cell adhesion to specific extracellular matrix molecules has been demonstrated to trigger dramatic changes in gene expression that can affect cell fate. However, little is understood about the molecular mechanism by which events at sites of cell-substratum adhesion are communicate... | Zyxin; Cytosol; Nuclear export signal | 1997 |
| 99 |
 |
Ogburn, Joyce L. | On anthropology and the internet (discussion and criticism) | The Internet as a topic has taken over our professional lives as much as the Internet as a reality. Its application to anthropology deserves a timely and thorough exploration. The article on it by Brian Schwimmer (CA 37:561-68) is dated December 1995, and in the absence of information on how recent... | Searching online; Website searching; Human history and culture | 1997 |
| 100 |
 |
Mathews, V. John | On the inversion of certain nonlinear systems | Abstract-In this letter, we present some theorems for the exact inversion and the pth-order inversion of a wide class of causal, discrete-time, nonlinear systems. The nonlinear systems we consider are described by the input-output relationship y(n) = g[x(n)]h[x(n - 1); y(n - 1)]+f[x(n - 1); y(n - 1)... | 1997 |