Filters: Date: "1993" Collection: ir_uspace
| Creator | Title | Description | Subject | Date | ||
|---|---|---|---|---|---|---|
| 26 |
 |
Stringfellow, Gerald B. | Compositional ordering in semiconductor alloys | Compositional ordering has been observed in a wide variety of III/V semiconductor alloys as well as in SiGe alloys. The thermodynamic driving force is now understood in terms of minimization of the microscopic strain energy of the bonds in the solid. However, the mechanism leading to the specific o... | Semiconductor alloys; Transmission-electron-diffraction pattern; Organometallic Vaper-phase epitaxy; Cathodoluminescence | 1993 |
| 27 |
 |
Gardner, Reed M. | The Computer for Charting and Monitoring | Biomedical Informatics | 1993 | |
| 28 |
 |
Sobh, Tarek M.; Henderson, Thomas C. | Concurrent engineering and robot prototyping | This report addresses the theoretical basis for building a prototyping environment for electromechanical systems using concurrent engineering approach. In Designing a robot manipulator, as an example of electro-mechanical systems, the interaction between several modules (S/W, VLSI, CAD, CAM, Robotic... | Robot prototyping | 1993 |
| 29 |
 |
Bruderlin, Beat | Constraint objects - integrating constraint definition and interaction | This paper describes the implementation of a new constraint-based technique for direct manipulation in interactive CAD. We introduce so called Constraint Objects and Parameter Objects which constitute an object-oriented view on constraints. A graph algorithm is employed to analyze the relative degr... | Constraint objects | 1993 |
| 30 |
 |
Olivera, Baldomero M.; McIntosh, J. Michael | Conus peptides as tools for the neuroscientist | Recombinant DNA technology has had a powerful impact on understanding receptors and ion channels, the key components in the nervous system that are involved in intercellular communication. Cloning genes encoding these proteins has revealed that for every receptor and ion channel type, multiple molec... | Conus peptides; Conotoxins | 1993 |
| 31 |
 |
Couldwell, William T. | Cosmetic mastoidectomy for the combined supra/infratentorial transtemporal approach | The authors describe a cosmetic mastoidectomy technique for use when performing a combined supra/ infratentorial craniotomy and transtemporal exposure. The technique involves a single temporal suboccipital bone flap and cosmetic mastoidectomy, removing the outer table of bone for later replacement... | Surgical approach; Supratentorial approach; Infratentorial approach; Petroclival meningiomas | 1993 |
| 32 |
 |
Caserta, Michael | Course of spousal bereavement in later life | The overall purpose of this chapter is to provide an overview of the major findings from our research over the past 11 years on spousal bereavement among older adults in the United States. We began in 1980 with a longitudinal study funded by the National Institute on Aging (NIA) designed to describ... | Senior citizens; Support groups; Death; Bereavement | 1993 |
| 33 |
 |
Bohs, Lynn A. | Cyphomandra (Solanaceae) | Cyphomandra betacea (Cavanilles) Sendtner Syn. Cyphomandra crassifotia (Ortega) Kuntze, Solanum betacea Cavanilles, Solanwn crassifolium Ortega. Ref. FB 13(5B/1) 1962: 12; Bohs, 1986: 170. Cultivated tree. Andean II. 1000-3000 m. Voucher: Nunez et al. 8257 (MO!) Depts.: AM, CU, HU, SM | Cyphomandra; Solanum | 1993 |
| 34 |
 |
Hansen, Charles D. | Data distributed, parallel algorithm for ray-traced volume rendering | This paper presents a divide-and-conquer ray-traced volume rendering algorithm and a parallel image compositing method, along with their implementation and performance on the connection Machine CM-5, and networked workstations. This algorithm distributes both the data and the computations to individ... | Volume rendering; Ray tracing; ; Computer algorithms; Scientific visualization; Network computing; Massively parallel processing | 1993 |
| 35 |
 |
Hansen, Charles D. | Data distributed, parallel algorithm for ray-traced volume rendering | This paper presents a divide-and-conquer ray-traced volume rendering algorithm and a parallel image compositing method, along with their implementation and performance on the Connection Machine CM-5, and networked workstations. This algorithm distributes both the data and the computations to individ... | Volume rendering; Ray tracing; ; Computer algorithms; Scientific visualization; Network computing; Massively parallel processing | 1993 |
| 36 |
 |
Miller, Joel Steven; Epstein, Arthur J. | Decamethylchromocenium tetracyanoethenide, + [Cr(C5Me5)2]:.+[TCNE].-: a molecular ferromagnet with Tc=3.65 K | The electron-transfer salt 4[Cr(C5Me5)2] + [TCNE].-(TCNE = tetracyanoethylene) has been prepared and structurally characterized by single-crystal X-ray diffraction. It possesses a solid-state motif of parallel 1D chains of alternating radical cations and anions similar to, but not isostructural to, ... | Magnetic; Electron transfer; Coupling | 1993 |
| 37 |
 |
Stevens, Kenneth | Designing parallel specifications in CCS | We describe a style of specifying concurrent systems based upon the parallel composition operatorof CCS and apply it to several asynchronous hardware examples. | 1993 | |
| 38 |
 |
Johnston, Susan S. | Developing an initial communicative repertoire: applications and issues for persons with severe disabilities | Researchers and practitioners are increasingly aware of the extent of communicative relationships very early in development. Advances in understanding how communication develops and how it can be taught have made earlier communication intervention a viable undertaking for infants and toddlers who ex... | Intervention; Context; Communicative functions | 1993 |
| 39 |
 |
Fogel, Alan Dale | Developing through relationships origins of communication, self, and culture | I began to consider the study of relationships as an intellectual vocation in 1970, the result of two years of college teaching that was part of my work as a United States Peace Corps volunteer in Bogota, Colombia. After another year I began my doctoral training in the Department of Education at th... | 1993 | |
| 40 |
 |
Miller, Jan D.; Lin, Chen-Luh | Development of a PC, image-based, on-line particle size analyzer | A PC, image-based, on-line instrument for measuring coarse particle size on a conveyor belt is under development. The hardware and software required to implement such a system are discussed, including the interface for the special image-acquisition hardware. The system concept is given with exampl... | 1993 | |
| 41 |
 |
Gardner, Reed M. | Development of an Effective User Interface for a Computerized Laboratory Alerting System | Biomedical Informatics | 1993 | |
| 42 |
 |
Couldwell, William T. | Development of neurosurgery in Southern California and the Los Angeles County/University of Southern California Medical Center | The Los Angeles County General Hospital has played an integral role in the development of medicine and neurosurgery in Southern California. From its fledgling beginnings, the University of Southern California School of Medicine has been closely affiliated with the hospital, providing the predomina... | Historical vignette; Los Angeles County General Hospital; University of Southern California School of Medicine; Neurosurgical history | 1993 |
| 43 |
 |
Lepreau, Jay | DRAFT: work in progress - - - comments solicited evolving Mach 3.0 to use migrating threads | Like most operating systems, Mach 3.0 views threads as statically associated with a single task. An alternative model is that of migrating threads, in which a single thread abstraction moves between tasks with the logical flow of control, and "server" code is passively executed. We have compatibly r... | DRAFT | 1993 |
| 44 |
 |
Morse, Michael David | Electron spin resonance investigation of Sc?+ in neon matrices and assignment of its ground electronic state as X ???. comparison with theoretical calculations | The discandium radical cation, Sc+2 , has been isolated in neon matrices at 4 K and studied by electron spin resonance (ESR) spectroscopy and theoretical methods. It was produced by the x-irradiation of neon matrix samples containing neutral ScZ which was formed by trapping the products generated fr... | 1993 | |
| 45 |
 |
Dailey, Andrew T. | Emergent aneurysm clipping without angiography in the moribund patient with intracerebral hemorrhage: the use of infusion computed tomography scans | THE AUTHORS REPORT their experience with 25 patients (mean age, 44.3 ± 12.1 years) with an intracerebral hematoma (ICH) from a ruptured aneurysm who were emergently operated on without angiography. Instead, preoperative high-resolution infusion computed tomography (CT) scans were used to identify... | Ruptured aneurysms; Computed tomography; Infusion computed tomography; Aneurysm clipping | 1993 |
| 46 |
 |
McDaniel, Susan | Emotional support and family contacts of older Canadians | Elderly people can no longer expect to spend their senior years living with their families. This is particularly true for older women, who as widows are more and more likely to be living alone. With more seniors living on their own, emotional support from family may not be as easy to come by as i... | 1993 | |
| 47 |
 |
Miller, Jan D. | Evaluation of a PC image-based on-line coarse particle size analyzer | A PC image-based, on-line coarse particle size analysis system is being developed for the control of crushing and grinding circuits. Initial results had indicated that the system is accurate when tested with irregularly shaped particles which are stationary and do not overlap with each other. Now th... | Sampling; Measurements; Analysis | 1993 |
| 48 |
 |
Beckerle, Mary C. | Evidence for the selective association of a subpopulation of GPIIb-IIIa with the actin cytoskeletons of thrombin-activated platelets | Activation of blood platelets triggers a series of responses leading to the formation and retraction of blood clots. Among these responses is the establishment of integrin-mediated transmembrane connections between extracellular matrix components and the actin cytoskeleton of the platelet. | Actin; GPIIb-IIIa | 1993 |
| 49 |
 |
Davidson, Diane W. | Evolutionary ecology of symbiotic ant-plant relationships | Abstract.--A tabular survey of ant-plant symbioses worldwide summarizes aspects of the evolutionary ecology of these associations. Remarkable similarities between ant-plant symbioses in disjunct tropical regions result from convergent and parallel evolution of similarly preadapted ants and plants. ... | Symbioses; Evolution; Taxonomic | 1993 |
| 50 |
 |
Hansen, Charles D. | Fast data parallel polygon rendering | This paper describes a data parallel method for polygon rendering on a massively parallel machine. This method, based on a simple shading model, is targeted for applications which require very fast rendering for extremely large sets of polygons. Such sets are found in many scienti c visualization ap... | 1993 |