370 research outputs found

    Barley foliage diseases, field pea diseases.

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    85BA22, 85MT31, 85N053, 85BA24, 85MT32, 85MT32, 85N052, 85N053, 85BA21, 85MT30, 85BA21, 85BA22, 85MT31, 85MT43, 85KA59, 85KA60, 85M29, 85MT44, 85E22, 85ES22, 85ES23, 85N051, 85BA25, 85WH27, 85C65, 85C69, 85C66, 85C67, 8SKA48, 8SMT34, 85KA47, 85MT33, 85M26, 85ME26, 85KA49, 85KA51. A.General Notes and Highlights BARLEY FOLIAGE DISEASES B. Scald: Screening fungicides c. Scald: Fungicidal control in Northam district D. Scald: Effect of seeding rate E. Scald & Mildew Effect of fungicides and rates F. Scald & Mildew Seed borne infection and seed dressing G. Scald & Mildew Effect of seed dressing and spraying H. Scald & Mildew Effect of Erex and Baytan I. Mildew: Cultivar x seed dressing J. Mildew: Comparing fungicides K. Mildew: Simulated Stubble mulching L. Mildew: Cultivar mixtures M. Net-Blotch: Seed borne infection and its control N. Net-Blotch: Screening fungicides O. Spot-type Net-Blotch Potential yield losses P. Spot-type Net-Blotch Effect of date of sowing Q. Spot-type Net-Blotch Simulated stubble mulching FIELD PEA DISEASES R. Black spot: Potential crop losses S. Black spot: Seed dressings T. Black spot: Monitoring Air borne infection U. Black spot: Screening for resistanc

    Protocol for an economic evaluation alongside a cluster randomised controlled trial: cost-effectiveness of Learning Clubs, a multicomponent intervention to improve women’s health and infant’s health and development in Vietnam

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    Introduction: Economic evaluations of complex interventions in early child development are required to guide policy and programme development, but a few are yet available. Methods and analysis: Although significant gains have been made in maternal and child health in resource- constrained environments, this has mainly been concentrated on improving physical health. The Learning Clubs programme addresses both physical and mental child and maternal health. This study is an economic evaluation of a cluster randomised controlled trial of the impact of the Learning Clubs programme in Vietnam. It will be conducted from a societal perspective and aims to identify the cost-effectiveness and the economic and social returns of the intervention. A total of 1008 pregnant women recruited from 84 communes in a rural province in Vietnam will be included in the evaluation. Health and cost data will be gathered at three stages of the trial and used to calculate incremental cost-effectiveness ratios per percentage point improvement of infant’s development, infant’s health and maternal common mental disorders expressed in quality-adjusted life years gained. The return on investment will be calculated based on improvements in productivity, the results being expressed as benefit–cost ratios. Ethics and dissemination: The trial was approved by Monash University Human Research Ethics Committee (Certificate Number 2016–0683), Australia, and approval was extended to include the economic evaluation (Amendment Review Number 2018-0683-23806); and the Institutional Review Board of the Hanoi School of Public Health (Certificate Number 017-377IDD- YTCC), Vietnam. Results will be disseminated through academic journals and conference presentations

    Monte Carlo Study of the Separation of Energy Scales in Quantum Spin 1/2 Chains with Bond Disorder

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    One-dimensional Heisenberg spin 1/2 chains with random ferro- and antiferromagnetic bonds are realized in systems such as Sr3CuPt1−xIrxO6Sr_3 CuPt_{1-x} Ir_x O_6. We have investigated numerically the thermodynamic properties of a generic random bond model and of a realistic model of Sr3CuPt1−xIrxO6Sr_3 CuPt_{1-x} Ir_x O_6 by the quantum Monte Carlo loop algorithm. For the first time we demonstrate the separation into three different temperature regimes for the original Hamiltonian based on an exact treatment, especially we show that the intermediate temperature regime is well-defined and observable in both the specific heat and the magnetic susceptibility. The crossover between the regimes is indicated by peaks in the specific heat. The uniform magnetic susceptibility shows Curie-like behavior in the high-, intermediate- and low-temperature regime, with different values of the Curie constant in each regime. We show that these regimes are overlapping in the realistic model and give numerical data for the analysis of experimental tests.Comment: 7 pages, 5 eps-figures included, typeset using JPSJ.sty, accepted for publication in J. Phys. Soc. Jpn. 68, Vol. 3. (1999

    The Percolation Signature of the Spin Glass Transition

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    Magnetic ordering at low temperature for Ising ferromagnets manifests itself within the associated Fortuin-Kasteleyn (FK) random cluster representation as the occurrence of a single positive density percolating network. In this paper we investigate the percolation signature for Ising spin glass ordering -- both in short-range (EA) and infinite-range (SK) models -- within a two-replica FK representation and also within the different Chayes-Machta-Redner two-replica graphical representation. Based on numerical studies of the ±J\pm J EA model in three dimensions and on rigorous results for the SK model, we conclude that the spin glass transition corresponds to the appearance of {\it two} percolating clusters of {\it unequal} densities.Comment: 13 pages, 6 figure

    Thermal Activation of Methane by MgO+: Temperature Dependent Kinetics, Reactive Molecular Dynamics Simulations and Statistical Modeling

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    The kinetics of MgO + + CH 4 was studied experimentally using the variable ion source, temperature adjustable selected ion flow tube (VISTA-SIFT) apparatus from 300 − 600 K and computationally by running and analyzing reactive atomistic simula- tions. Rate coefficients and product branching fractions were determined as a function of temperature. The reaction proceeded with a rate of k = 5 . 9 ± 1 . 5 × 10 − 10 ( T/ 300 K) − 0 . 5 ± 0 . 2 cm 3 s − 1 . MgOH + was the dominant product at all temperatures, but Mg + , the co-product of oxygen-atom transfer to form methanol, was observed with a product branching fraction of 0 . 08 ± 0 . 03( T/ 300 K) − 0 . 8 ± 0 . 7 . Reactive molecular dynamics simulations using a reactive force field, as well as a neural network trained on thousands of structures yield rate coefficients about one order of magnitude lower. This underestimation of the rates is traced back to the multireference character of the transition state [MgOCH 4 ] + . Statistical modeling of the temperature-dependent kinetics provides further insight into the reactive potential surface. The rate limiting step was found to be consistent with a four-centered activation of the C-H bond, consistent with previous calculations. The product branching was modeled as a competition between dissociation of an insertion intermediate directly after the rate- limiting transition state, and traversing a transition state corresponding to a methyl migration leading to a Mg-CH 3 OH + complex, though only if this transition state is stabilized significantly relative to the dissociated MgOH + + CH 3 product channel. An alternative non-statistical mechanism is discussed, whereby a post-transition state bifurcation in the potential surface could allow the reaction to proceed directly from the four-centered TS to the Mg-CH 3 OH + complex thereby allowing a more robust competition between the product channels

    Early Recollections: An Adlerian technique with older people

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    Abstract: Research on the success of life review therapy with older persons has been equivocal. This article suggests a related but less time consuming and possibly more productive alternative for facilitating ego integrity in late maturity. The Adlerian concept of Early Recollections is discussed in detail, with concrete suggestions for therapy and examples provided. Merriam and Cross (1982, p. 39) noted that "reminiscence, or recalling the past, is a behavior common to all ages." It is viewed as particularly important for older persons as they attempt the universal process of achieving ego integrity Article: Though the need for some type of reminiscing experience is well documented, the nature of this experience also remains unclear. Life review needs better definition of process, methods and caregiver qualifications. An alternative method to assist older persons in achieving ego integrity, as well as to help them live more satisfying and effective lives on a daily basis, is described in the following sections. Based on Adlerian theory, the technique of using Early Recollections provides an opportunity for structured reminiscence and offers several advantages over the traditional life review therapy. The description of this approach and one of the major techniques of particular relevance to older persons comprises the remainder of this article

    Quantum Monte Carlo Loop Algorithm for the t-J Model

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    We propose a generalization of the Quantum Monte Carlo loop algorithm to the t-J model by a mapping to three coupled six-vertex models. The autocorrelation times are reduced by orders of magnitude compared to the conventional local algorithms. The method is completely ergodic and can be formulated directly in continuous time. We introduce improved estimators for simulations with a local sign problem. Some first results of finite temperature simulations are presented for a t-J chain, a frustrated Heisenberg chain, and t-J ladder models.Comment: 22 pages, including 12 figures. RevTex v3.0, uses psf.te
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