Filters: Collection: "ir_uspace"
| Creator | Title | Description | Subject | Date | ||
|---|---|---|---|---|---|---|
| 401 |
 | Olivera, Baldomero M. | Pyridine nucleotide metabolism in Escherichia coli. III. Biosynthesis from alternative precursors in vivo | In Escherichia coli, the nicotinamide moiety of pyridine nucleotides may be derived from de novo synthesis of the pyridine ring or through the uptake of either nicotinic acid or nicotinamide. De novo synthesis is the least preferred pathway; it is suppressed if an exogenous source is available. Nic... | Nicotinic acid; Biosynthesis | 1973 |
| 402 |
 | Greenfield, Harvey | Simulation of arbitrary shaped boundaries for hemodynamic studies | 1973 | ||
| 403 |
 | Allen, Edgar S. | Sensory information processing and symbolic computation (1 Jan. 1975 - 30 June 1975) | This research uses digital computation to investigate processes, both linear and nonlinear, for the filtering. restoration, enhancement, bandwidth reduction, distortion immunization and analysis of both visual and auditory information. | Sensory information processing; Symbolic computation; Auditory information; Visual information | 1973 |
| 404 |
 | Warner, Homer R. | Health Evaluation Through Logical Processing - HELP | Biomedical Informatics | 1973 | |
| 405 |
 | Mattis, Daniel C. | Second-order phase transition in a model random alloy | We investigate the existence and stability of long-range order in a simple model of a binary alloy. We find that for electron concentrations in the vicinity of one per atom, in bipartite lattices, long-range order of the atoms exists at low temperatures, and we find that the system undergoes a secon... | Phase transition; Random alloys; Quasiparticles; Density of state | 1973-03 |
| 406 |
 | Mattis, Daniel C. | Phonons and phase transitions of helium | We find a new collective shear-wave-like mode above Tλ, merging with the longitudinal acoustic mode at a higher critical temperature. The speed of the new sound wave is predicted to vanish near Tλ as s ∞ (T -Tλ)½ . | 1973-06 | |
| 407 |
 | Phong-Tuong, Bui | Illimunation of computer generated images (CSTD-73-005) | This .report describes a new model for the shading of computer-generated images of objects in general and of polygonally descibed free-form curved surfaces in particular. The shading function is determined by a linear interpolation of the curvature of the surface. It takes into consideration the phy... | Computer animation | 1973-07 |
| 408 |
 | Wessler, Barry David | Computer-assisted visual communication (CSTD-73-004) | The purpose of this research was to build an environment m which an author can create a visual communications vehicle (a film) which will convey his ideas and thoughts. The primary motivation for this effort was the powerful ability of film to combine instruction with entertainment. The entertainmen... | Computer animation | 1973-07 |
| 409 |
 | Mattis, Daniel C. | Mobility gap and anomalous dispersion | It is shown that anomalous dispersion of quasiparticles leads to nonpropagating states. Therefore regions of anomalous dispersion define a sort of "mobility gap." Using the coherent-potential approximation, we calculate the conditions for obtaining such a mobility gap in a disordered binary alloy. J... | Mobility gap; Disordered media; Quasiparticles | 1973-09 |
| 410 |
 | Capecchi, Mario R. | Altered enzymes in drug-resistant variants of mammalian tissue culture cells. | Two selective procedures are compared in an effort to isolate variants of mouse L cells containing structural gene mutations. Among the resulting variant cloned cell lines are found two types of alterations in theenzyme hypoxanthine phosphoribosyl transferase (EC 2.4.2.8.) (1): enzyme with altered ... | Drug Resistance; Azaguanine; Clone Cells; Hypoxanthines | 1973-11 |
| 411 |
 | Warner, Homer R. | Left Ventricular Videometry | Biomedical Informatics | 1974 | |
| 412 |
 | Warner, Homer R. | Can Automation Make Interactive Medical History Taking Feasbile and Acceptable? | Biomedical Informatics | 1974 | |
| 413 |
 | Gardner, Reed M. | Indewlling Arterial Catheters (Letter) | Biomedical Informatics | 1974 | |
| 414 |
 | Gardner, Reed M. | Percutaneous Indwelling Radial-Artery Catheters for Monitoring Cardiovascular Function | Biomedical Informatics | 1974 | |
| 415 |
 | Warner, Homer R. | Computer Assisted Instruction for Teaching Clinical Decision-Making | Biomedical Informatics | 1974 | |
| 416 |
 | Bennett, Donald R. | Current Status of EEG Telephone Telemetry | Biomedical Informatics | 1974 | |
| 417 |
 | Warner, Homer R. | A Technique for the Detection of Asynergistic Motion in the Left Ventricle | Biomedical Informatics | 1974 | |
| 418 |
 | Gardner, Reed M. | Eight-Channel Data Set for Clincal EEG Transmission Over Dial-Up Telephone Network | Biomedical Informatics | 1974 | |
| 419 |
 | Boyer, Richard S. | Hypersensitivity Lung Disease in the Turkey Raising Industry | Biomedical Informatics | 1974 | |
| 420 |
 | Pryor, T. Allan | A Computer Program for Stress Test Data Processing | Biomedical Informatics | 1974 | |
| 421 |
 | Jameson, Kenneth P. | In-migration experience of Indiana's standard metropolitan statistical areas | THE 1970 Census, Fourth Count on Population, can be used to develop a very detailed description of in-migration patterns.1 The main results of such a description for the ten Indiana Standard Metropolitan Statistical Areas (SMSA's) can be summarized as follows.2 | In-migration | 1974 |
| 422 |
 | Hartmann, Donald P. | Forcing square pegs into round holes: Some comments on "An Analysis-of-Variance Model for the Intrasubject Replication Design | This paper critically examines the application of fixed-effect one-way analysis-of-variance procedures to learning data from a single subject. Procedures more appropriate for data obtained from intrasubject replication designs are briefly described. | ANOVA; variance analysis; behavior analysis | 1974 |
| 423 |
 | Firmage, Edwin B. | Law and the Indochina War: a retrospective view | This century, from the Hague Conferences through the Vietnam War, has seen a profound change in attitudes toward the role of law as a constraint upon foreign policy. The Hague Conferences represented at once an attempt, however feeble, by men of mixed motives to emplace fledgling prophylactic lega... | Foreign affairs; Dispute resolution; International disputes; Arbitration | 1974 |
| 424 |
 | Mattis, Daniel C. | New wave-operator identity applied to the study of persistent currents in 1D | We show that a large class of backward-scattering matrix elements involving Δk ~ + 2k F vanish for fermions interacting with two-body attractive forces in one dimension. (These same matrix elements are finite for noninteracting particles and infinite for particles interacting with two-body repulsiv... | Persistent current; Supercurrents | 1974 |
| 425 |
 | Symko, Orest George | Background signals in SQUID magnetometers | Since a SQUID magnetometer is an extremely sensitive device capable of detecting minute magnetic flux changes in a sample, it will also detect unwanted signals from materials near the magnetometer. The presence of temperature dependent "background signals" limits the accuracy of measurements of ... | SQUID magnetometer; Background signals | 1974 |