276 - 300 of 10,885
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CreatorTitleDescriptionSubjectDate
276 Baehr, WolfgangPhenolic components from the leaves of the Ginkgo tree (Ginkgo biloba L)No summary- Article is in German.Flavonoids; Chromatography; Phenols; Plant Extracts; Ginkgo Biloba L.1968-05
277 Warner, Homer R.A Mathematical Approach to Medical Diagnosis: Application to Polycythemic States Utilizing Clinical Findings with Values Continuously DistributedBiomedical Informatics1969
278 Warner, Homer R.On-Line Computerized Spirometry in 738 Normal AdultsBiomedical Informatics1969
279 Miller, Jan D.ConcentrationThe most startling development in concentration processes this past year would have to be the results obtained after magnetic treatment of aqueous systems. Beneficial effects were reported in both flotation and thickening on an industrial scale following the application of a magnetic field to ...Concentration; Aqueous systems; Pulp; Magnetic treatment1969
280 Capecchi, Mario R.Characterization of three proteins involved in polypeptide chain termination.At each stage of elongation, the growing polypeptide chain is bound to the ribosome-messenger RNA complex through the transfer RNA of the most recently incorporated amino acid residue. When the chain is complete, the last polypeptide-transfer RNA (tuna) ester linkage is cleaved, releasing the chain ...Anti-Bacterial Agents; Phenylalanine; Stimulation, Chemical1969
281 Brown, Francis HaroldSome early pleistocene deposits of the lower Omo valley: the Usno formationEarly Pleistocene deposits of the Rudolf Basin have been described by E. Brumpt (Bourg de Bozas, 1903: 107 ff.), Arambourg (1943: 190 ff.), Fuchs (1939), Patterson (1966), and Butzer and Thurber (1969). These include the Omo Beds, first recognized by Brumpt in 1902 and subsequently studied by Arambo...1969
282 Warner, Homer R.Computer-Based Monitoring of Patients Following Cardiac SurgeryBiomedical Informatics1969
283 Warner, Homer R.Effect of Combined Sympathetic and Vagal Stimulation on Heart Rate in the DogBiomedical Informatics1969
284 Brown, Francis HaroldHorizontal sediments of the lower Omo valley: the kibish formationThe existence of old lacustrine deposits in the Lake Rudolf Basin was first recognized by Hohnel et al. (1891 : 20f., 134) and subsequently confirmed by the work of M. Sacchi (Angelis and Millosevich, 1900) and E. Brumpt (Bourg de Bozas, 1903: 107ff.), Fuchs (1935, 1939), Champion (1937), and Aramb...1969
285 Mattis, Daniel C.Magnetization of Ising model in nonzero magnetic fieldKnowing only the zero-field magnetization (e.g., Yang's result) of the Ising model in any number of dimensions, one can construct a lower bound on m(h), the magnetization in finite field. Knowledge of u, the internal energy per bond, enables a more efficient lower bound to be constructed. Both are ...Magnetization; Griffiths inequality1969
286 Ailion, David CharlesLow cost integrated circuit versatile pulse and frequency counterIn this paper we describe a compact multipurpose counter whose design is based on the use of plastic integrated circuits. The circuit contains about $90 worth of semiconductor components and is very easy to wire; nevertheless, it is extremely versatile. It consists of dual 107 and 106 counters which...Integrated circuits; Counters; Physics instruments1969
287 Gesteland, Raymond F.Translation of Rl7 RNA fragmentsExamination of the events during infection of cells by RNA phages reveals phemonomena that are surprisingly complex for a virus that has only enough information to code for three to four proteins. The coat protein is synthesized at a rapid rate through most of the infectious cycle making it the pre...Electrophoresis; RNA, Messenger; Peptide Biosynthesis; Kinetics1969
288 Stringfellow, Gerald B.Dislocations in GaAs17-xPxDislocations, their origins, and their effects on photoluminescence efficiency have been studied in GaAs1-xPx single crystals grown by vapor phase epitaxy. Dislocations were observed using etch pit, optical-transmission microscopy, and x-ray topography techniques. Two types of dislocations are grown...Photoluminescence efficiency; Growth mechanism; Optical transmission microscopy1969
289 Brown, Francis HaroldObservations on the stratigraphy and rediometric age of the omo beds, lower omo basin, southern EthiopiaDuring September and October, 1966, the author measured a stratigraphic section for a portion of the Omo Beds, as exposed north of Kalam, Ethiopia. Additional field observations were also made at the time in other parts of the lower Omo Basin. Samples were collected for analysis and for radiometric ...1969
290 Gesteland, Raymond F.Characterization of lysozyme messenger and lysozyme synthesized in vitroIn vitro systems for protein systhesis have been in wide use for about 10 years. In most of the early work protein synthesis was measured by following the incorporation of radioactive amino acids into acid precipitable material. This test cannot distinguish between the synthesis of complete, activ...Lysozyme Messenger; Lysozyme Synthesized; Protein Synthesis1969
291 Pryor, T. AllanElectrocardiographic Interpretation by ComputerBiomedical Informatics1969
292 Ailion, David CharlesNew two-point calibration method for platinum resistance thermometers for the range 75-400KIn this paper we describe a new method for calibrating high quality platinum resistance thermometers to ±0.01 "C over the temperature range 75-400 K. This method requires resistance measurements at only two temperatures (liquid nitrogen and the ice point) in contrast to other methods which require ...Platinum; Resistance thermometers; Physics instruments1969
293 Ailion, David CharlesLow cost high linearity solid state digital double boxcarIn this article, we describe a digital solid state double boxcar of infinite holding time and very high linearity. It uses a Hewlett-Packard (HP2212 A-M3) voltage-to-frequency converter (VFC) whose output is accumulated on a running counter, thereby providing signal averaging with an infinite holdin...High linearity; Boxcar; Instruments, Physics1969
294 Mattis, Daniel C.Effects of orbital degeneracy on a magnetic impurity in a nonmagnetic metalWe study the Green's-function equations for a version of the two-orbital Anderson model of a magnetic impurity, in an approximation scheme that displays the logarithmic anomalies and enables the Kondo temperature Tĸ to be calculated as a function of the parameters. The nature of the solutions is ex...Orbital degeneracy; Magnetic impurities; Nonmagnetic metal; Kondo temperature; Anomalous resonances1969-02
295 Symko, Orest GeorgeAdiabatic compressional cooling of He3By adiabatic compression of a two-phase mixture of liquid and solid He3, temperatures below 2.5 mK have been obtained. These are in the range expected for nuclear ordering in solid He3.He3; Adiabatic compressional cooling1969-03
296 Evans, DavidGraphical man/machine communications: May 1969Semi-Annual Technical Report 1 December 1968 - 30 May 19691969-05
297 Mattis, Daniel C.Theory of electronic switching effect as a cooperative phenomenonA modified form of Zener tunneling theory, in which we assume that the tunneling barrier is a decreasing collective function of electronic excitation, is shown to imply insulator- to-metal switching characteristics similar to those reported by Ovshinsky for glass film devices. In addition, our І-V ...Electronic switching; Negative resistance1969-05
298 Firmage, Edwin B.Treaty on the nonproliferation of nuclear weaponsTHE NEED : On March 13, 1969, the United States Senate by a vote of 83 to 15 consented to the ratification of a treaty described as "the most important international agreement brought before the U. S. Senate since the North Atlantic Pact" and "the most important international agreement limiting nucl...Arms control; Diffusion of arms; Atomic negotiations1969-10
299 Evans, DavidGraphical man/machine communications: November 1969Semi-Annual Technical Report 1 June 1969 - 30 November 19691969-11
300 Symko, Orest GeorgeSubstantial nuclear ordering in solid He3Evidence for a substantial nuclear ordering in solid bcc He3 at melting pressure has been inferred from solid entropies s s deduced from measurements of the slope of the melting curve for a liquid-solid mixture cooled by adiabatic compression. At 3.4 mK we find experimentally that sS/R = 0.83 ln2. I...Solid He3; Nuclear ordering; Ordered nuclear spins; Bulk nuclear polarization1969-11
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