Conceptos basicos de fisiologia del frijol

The physiological processes that determine bean growth are reviewed, namely photosynthesis, respiration, DM distribution, HI, yield components, and environmental effects. Some concepts used in physiological work such as growth analysis, leaf area determination, data analysis, yield, yield components, and environmental data are discussed. (CIAT)Se revisan los procesos fisiologicos que determinan el crecimiento del frijol: fotosintesis, respiracion, distribucion de MS, IC, componentes del rendimiento y efectos ambientales. Tambien se discuten algunos conceptos utilizados en trabajos fisiologicos tales como analisis del crecimiento, determinacion del area foliar, analisis de datos, rendimiento, componentes del rendimiento y datos ambientales. (CIAT

Letter from J.W. White to James B. Finley

Rev. John White writes about conditions in the city of Chillicothe. [Appointed to Eastern Charge of Chillicothe, Chillicothe District. George C. Crum is appointed to the Western Charge]. White reports that he and Crum are hard at work fighting the devil. Conditions in the town are appalling -- alcohol consumption, breaking of the Sabbath, blasphemy, etc. It is a sin sickened city. Members of the churches are not much better behaved. Every sort of evil is being practiced. White is critical of the Catholic factory in town, where sins are forgiven for a sixpence. There is a definite class difference in town -- the aristocracy and the second class. Abstract Number - 222https://digitalcommons.owu.edu/finley-letters/1220/thumbnail.jp

Letter from J.W. White to James B. Finley

Rev. John W. White has evidently been asked by Finley to intercede with judges, etc. on behalf of a prisoner. He asks Finley to let the prisoner know that he is doing all he can for him. Abstract Number - 435https://digitalcommons.owu.edu/finley-letters/1633/thumbnail.jp

Interaction potentials for soft and hard ellipsoids

Using results from colloid science we derive interaction potentials for computer simulations of mixtures of soft or hard ellipsoids of arbitrary shape and size. Our results are in many respects reminicent of potentials of the Gay-Berne type but have a well-defined microscopic interpretation and no adjustable parameters. Since our potentials require the calculation of similar variables, the modification of existing simulation codes for Gay-Berne potentials is straightforward. The computational performance should remain unaffected.Comment: 8 pages, 4 figure

Preliminary Report on the Milking Machine

With a view of testing the practicability of the milking machine, the South Dakota experiment station, two years ago last February, installed the Hazelwood milking machines in the college dairy barn. These machines, with the exception of one day out of each month when the machine milked cows were milked by hand, and also in a few instances when the gasoline, engine used for power underwent repairs, have been in continuous operation since that time, or for nearly two and one-half years. The cows were milked by hand one day of each month to ascertain the approximate production of individual cows. The Hazelwood machine milks two cows at a time, and has no partition in the pail. Two machines were installed, as one man can attend to two as well as to one. The data on hand at the present time are not complete, but on account of the demand for information regarding milking machines, this preliminary report giving the results to date with this particular make of milking machine is issued

Letter from Eli R. Beale & J.W. White to James B. Finley

Beale reports that his health is greatly improved. He offers to throw himself into Finley\u27s hands to be used by the Church (if needed) in promoting the salvation of souls. He asks Finley to recommend him to the Conference. Also enclosed is a letter from Rev. John W. White, dated September 22, 1842. [White is appointed to Xenia Station, under the Dayton District presiding elder, James B. Finley]. White believes that the particulars of Mr. Alexander\u27s expulsion have been misrepresented to Finley. He declares that the expulsion was done in strict conformity with the Discipline. White\u27s health is poor but he has no intention of leaving the itinerancy. Abstract Number - 211https://digitalcommons.owu.edu/finley-letters/1209/thumbnail.jp

Issues and Observations on Applications of the Constrained-Path Monte Carlo Method to Many-Fermion Systems

We report several important observations that underscore the distinctions between the constrained-path Monte Carlo method and the continuum and lattice versions of the fixed-node method. The main distinctions stem from the differences in the state space in which the random walk occurs and in the manner in which the random walkers are constrained. One consequence is that in the constrained-path method the so-called mixed estimator for the energy is not an upper bound to the exact energy, as previously claimed. Several ways of producing an energy upper bound are given, and relevant methodological aspects are illustrated with simple examples.Comment: 28 pages, REVTEX, 5 ps figure

Predictions of acoustic signals from explosions above and below the ocean surface: source region calculations

In support of the Comprehensive Test Ban, research is underway on the long range propagation of signals from nuclear explosions in the deep underwater sound (SOFAR) channel. This first phase of our work at LLNL on signals in the source regions considered explosions in or above the deep (5000 m) ocean. We studied the variation of wave properties and source region energy coupling as a function of height or depth of burst. Initial calculations on CALE, a two-dimensional hydrodynamics code developed at LLNL by Robert Tipton, were linked at a few hundred milliseconds to a version of NRL`s weak shock code, NPE, which solves the nonlinear progressive wave equation. The wave propagation simulation was performed down to 5000 m depth and out to 10,000 m range. We have developed a procedure to convert the acoustic signals at 10 km range into `starter fields` for calculations on a linear acoustics code which will extend the propagation to ocean basin distances. Recently we have completed calculations to evaluate environmental effects (shallow water, bottom interactions) on signal propagation. We compared results at 25 km range from three calculations of the same I kiloton burst (50 m height-of-burst) in three different environments, namely, deep water, shallow water, and a case with shallow water sloping to deep water. Several results from this last `sloping bottom` case will be 2016 discussed below. In this shallow water study, we found that propagation through shallow water complicates and attenuates the signal; the changes made to the signal may impact detection and discrimination for bursts in some locations

Perturbation Theory for Spin Ladders Using Angular-Momentum Coupled Bases

We compute bulk properties of Heisenberg spin-1/2 ladders using Rayleigh-Schr\"odinger perturbation theory in the rung and plaquette bases. We formulate a method to extract high-order perturbative coefficients in the bulk limit from solutions for relatively small finite clusters. For example, a perturbative calculation for an isotropic $2\times 12$ ladder yields an eleventh-order estimate of the ground-state energy per site that is within 0.02% of the density-matrix-renormalization-group (DMRG) value. Moreover, the method also enables a reliable estimate of the radius of convergence of the perturbative expansion. We find that for the rung basis the radius of convergence is $\lambda_c\simeq 0.8$, with $\lambda$ defining the ratio between the coupling along the chain relative to the coupling across the chain. In contrast, for the plaquette basis we estimate a radius of convergence of $\lambda_c\simeq 1.25$. Thus, we conclude that the plaquette basis offers the only currently available perturbative approach which can provide a reliable treatment of the physically interesting case of isotropic $(\lambda=1)$ spin ladders. We illustrate our methods by computing perturbative coefficients for the ground-state energy per site, the gap, and the one-magnon dispersion relation.Comment: 22 pages. 9 figure