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Creator | Title | Description | Subject | Date |
276 |
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Battin, Margaret P. | Aging and ethics: philosophical problems in gerontology | Aging and Ethics addresses a crucial issue: In order to address the dilemmas aging poses concerning distributive justice in health care, don't we need to rethink both the personal and social significance of old age? | | 1993 |
277 |
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Dailey, Andrew T. | Agreement between orthopedic surgeons and neurosurgeons regarding a new algorithm for the treatment of thoracolumbar injuries: a multicenter reliability study | Introduction: Considerable variability exists in the management of thoracolumbar (TL) spine injuries. Although there are many influences, one significant factor may be the treating surgeon's specialty and training (ie, orthopedic surgery vs. neurosurgery). Our objective was to assess the agreement ... | Thoracolumbar injuries; Rating; Classification; TLISS; Neurosurgery; Interspeciality reliability | 2006 |
278 |
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Scarpulla, Michael | Air shear driven flow of thin perfluoropolyether polymer films | We have studied the wind driven movement of thin perfluoropolyether (PFPE) polymer films on silicon wafers and CNx overcoats using the blow-off technique. The ease with which a liquid polymer film moves across a surface when sheared is described by a shear mobility xS , which can be interpreted both... | Perfluoropolyether; Polymer films; Air shear; Shear mobility | 2003 |
279 |
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Miller, Jan D. | Air sparged hydrocyclone for fine coal flotation | The cleaning of fine coal to achieve compliance specifications generally is a challenging problem for coal preparation engineers. Gravity separation techniques are limited with regard to capacity/ efficiency considerations, and the most promising process alternative seems to be flotation, the u... | Microbubble; Compliance; Bituminous | 1988 |
280 |
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Lupton, John Mark | Air-induced fluorescence bursts from single semiconductor nanocrystals | We observe a dramatic enhancement of the fluorescence intensity from single core/shell CdSe/ZnS nanocrystals upon sudden exposure to air from an evacuated surrounding. Both the number of particles contributing to emission increases as well as the average emission intensity from a single particle, le... | CdSe; ZnS; Air-induced; Fluorescence bursts | 2004 |
281 |
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Miller, Jan D. | Air-sparged hydrocyclone (ASH) technology for cyanide recovery | An air-sparged hydrocyclone (ASH) mobile system was evaluated for continuous stripping and recovery of cyanide (the AVR process) from process water at a gold plant site. The ASH unit performed exceptionally well as an absorber. HCN was absorbed from the gas phase in a single pass with an efficiency... | Cyanide recovery; Air-sparged hydrocyclone; Gold processing; Process water | 2005 |
282 |
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Yanowitz, Frank G. | Alan E. Lindsay ECG Learning Center in Cyberspace | An interactive ECG tutorial representing an introduction to clinical electrocardiography. | Electrocardiography | 1996-09-01 |
283 |
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| Albert Lasker Awards Ceremony, 2001 | This is the 1 hour, 45 minutes, and 41 seconds video of the Lasker Awards Ceremony and Banquet held in September, 2001. The Albert Lasker Award for Basic Medical Research was given to Mario R. Capecchi, Oliver Smithies, and Martin Evans for their work in genetic research. Martin Evans discovered h... | Capecchi, Mario R.; Gene targeting; Embryonic stem cells; Transgenic mice; Genetic engineering; Science - Awards - United States; Smithies, Oliver; Evans, Martin J.; Awards presentations | 2001 |
284 |
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Wu, Yong-Shi | Algebraic and geometric aspects of generalized quantum dynamics | We briefly discuss some algebraic and geometric aspects of the generalized Poisson bracket and noncommutative phase space for generalized quantum dynamics, which are analogous to properties of the classical Poisson bracket and ordinary symplectic structure. | Quantum dynamics; Jacobi identity | 1994-06 |
285 |
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Tasdizen, Tolga | Algebraic curves that work better | An algebraic curve is defined as the zero set of a polynomial in two variables. Algebraic curves are practical for modeling shapes much more complicated than conics or superquadrics. The main drawback in representing shapes by algebraic curves has been the lack of repeatability in fitting algebraic... | | 1999 |
286 |
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Wu, Yong-Shi | Algebraic solution for a two-level atom in radiation fields and the Freeman resonances | Using techniques of complex analysis in an algebraic approach, we solve the wave equation for a two-level atom interacting with a monochromatic light field exactly. A closed-form expression for the quasienergies is obtained, which shows that the Bloch-Siegert shift is always finite, regardless of ... | Bloch-Siegert shift; Freeman resonances; Quasienergies | 2006-02 |
287 |
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Stevens, Kenneth | Algorithms for MIS vector generation and pruning | Ignoring the effect of simultaneous switching for logic gates causes silicon failures for high performance microprocessor designs. The main reason to omit this effect is the run time penalty and potential over-conservatism. Run times are directly proportional to the vector sizes. Efficient algorithm... | | 2006 |
288 |
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Crow, Franklin C. | The aliasing problem in computer-synthesized shaded images | This paper describes work toward improving the quality of computer-synthesized shaded images. Current (practical) hidden-surface algorithms produce an image whose precision is strictly limited by the number of picture elements. Problems caused by this limitation are described and explained in the t... | aliasing problem; shaded images; hidden-surface algorithms | 1976 |
289 |
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McDaniel, Susan | Alice in demographyland: how it looks from the other side of the looking glass | The challenges are many in reflecting on women in demography in Canada in the 1990's. On the one hand, so much is known about women in academia and the hurdles that still need to be overcome " institutionally and intellectually. So much more research exists in the area than it did only a decade ago.... | Women; Universities; Academic life | 1992 |
290 |
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Firmage, Edwin B. | Allegiance and stewardship: holy war, just war, and the Mormon tradition in the nuclear age | The present escalation in nuclear weapons technology between the United States and the Soviet Union has progressed beyond the point where any increase in such weaponry necessarily results in increased national security. It has become, in fact, the ultimate act of idolatry, a reliance upon technology... | Nuclear weapons; Salvation; Peacemakers | 1983 |
291 |
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Coley, Phyllis D.; Lokvam, John; Kursar, Thomas A. | Allelochemic function for a primary metabolite: the case of L-tyrosine hyper-production in Inga umbellifera (Fabaceae) | Young leaves of tropical forest trees experience far higher herbivory pressure than mature leaves of the same species. Selection on young leaves has led to diverse forms of defense chemical expression. Though most allelochemicals are secondary metabolites, allelochemic function for a primary metabol... | 5-amino-4-hydroxy-pentanoic acid; Panama; Barro Colorado Island; Fabaceae; Inga umbellifera; Primary metabolite; Heliothis virescens | 2006 |
292 |
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Smith, Ken R. | Allied health manpower strategies: estimates of the potential gains from efficient task delegation | This study analyzes the potential impact of physician extenders on the productivity of primary care practices and considers the consequent implication for future health manpower requirements. A number of previous investigations have evaluated a variety of extenders in experimental settings. This stu... | | 1973 |
293 |
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Lindstrom, Gary E. | Alpha-beta pruning on evolving game trees | The alpha-beta strategy is a widely used method for economizing on the size of game trees. Heretofore, its application has been limited to depth-first tree growth in recursive search functions. However, many modern game players use retentive (i.e. coroutine-based) control to achieve greater attentio... | Alpha-beta pruning; Game trees | 1979 |
294 |
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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 |
295 |
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Olivera, Baldomero M. | Alternative splicing in the pore-forming region of shaker potassium channels | We have cloned cDNAs for the shaker potassium channel gene from the spiny lobster Panulirus interruptus. As previously found in Drosophila, there is alternative splicing at the 59 and 39 ends of the coding region. However, in Panulirus shaker, alternative splicing also occurs within the pore-forming... | Panulirus interruptus; Conotoxins; Shaker; Stomatogastric ganglion; Pore-forming region; Alternative splicing | 1997 |
296 |
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Coffin, Cheryl M.; Capecchi, Mario R. | Alveolar rhabdomyosarcomas in conditional Pax3:Fkhr mice: cooperativity of Ink4a/ARF and Trp53 loss of function. | Alveolar rhabdomyosarcoma is an aggressive childhood muscle cancer for which outcomes are poor when the disease is advanced. Although well-developed mouse models exist for embryonal and pleomorphic rhabdomyosarcomas, neither a spontaneous nor a transgenic mouse model of alveolar rhabdomyosarcoma has... | Cell Differentiation; Forkhead Transcription Factors; Myogenic Regulatory Factors | 2004-11-01 |
297 |
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Hawkes, Kristen | Alyawara plant use and optimal foraging theory | Various authors have remarked on the importance of seeds in the pre-European diet of central Australian Aborigines. The Alyawara, an Arandic-speaking group, were typical in this respect. They collected edible seeds from nearly half the eighty-five plant species in their traditional subsistence inven... | Australia; Aborigines; Foraging; Seeds | 1981 |
298 |
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Mattis, Daniel C.; Sutherland, Bill | Ambiguities with the relativistic δ-function potential | In many cases of physical interest, the 6-function potential is a very convenient approximation to more structured, and more difficult, short-ranged potentials. In relativistic theories, its use is often mandated because only a mathematical point has a relativistically invariant shape. Neverthele... | Delta function; Energy states | 1981-09 |
299 |
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Gardner, Reed M. | American Thoracic Society - Device Standards (Editorial) | Biomedical Informatics | | 1975 |
300 |
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Olivera, Baldomero M. | Aminoglycoside effects on voltage-sensitive calcium channels and neurotoxicity | To the Editor: Since ototoxicity and neuromuscular toxicity of aminoglycoside antibiotics are reversed by calcium, 1,2 and presynaptic events appear to be involved in aminoglycoside-induced neuromuscular blockade, 3,4 we suspected a role for voltage-sensitive calcium channels in aminoglycoside neuro... | Conotoxins | 1987 |