Accidents to Farm People. 29,361 Reasons for a Safety Program

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Using the Uncharged Kerr Black Hole as a Gravitational Mirror

We extend the study of the possibility to use the Schwarzschild black hole as a gravitational mirror to the more general case of an uncharged Kerr black hole. We use the null geodesic equation in the equatorial plane to prove a theorem concerning the conditions the impact parameter has to satisfy if there shall exist boomerang photons. We derive an equation for these boomerang photons and an equation for the emission angle. Finally, the radial null geodesic equation is integrated numerically in order to illustrate boomerang photons.Comment: 11 pages Latex, 3 Postscript figures, uufiles to compres

Proceedings of the 10th Annual Meeting, Southern Soybean Disease Workers (March 15-17, 1983, Houston, Texas): Significance of Soybean Diseases

Contents 1983 Southern Soybean Disease Workers Officers 1983 Southern Soybean Disease Workers Program Committee Committee Chairmen General session Presidentiial address. W Winner Soybean Research Needs and the American Soybean Association. KJ Smith American Soybean Association Pesticide Assessment in the Administrative Hearing: An Educational Guide for the Agricultural Scientist. MT Olexa and AH Daniels Soybean Disease Loss Estimate. E Koldenhoven The influence of cultural practices on disease incidence. JG Kantzes presiding The Relationship Between Chloride Uptake and Leaf Scorch of Soybeans. MB Parker, TP Gaines, and GJ Gascho Effect of No-tillage on Fusarium Blight of Soybean on Delmarva. B Carroll Effect of No-tillage on Severity of Losses from Soybean Cyst Nematode and Foliar Diseases. AY Chambers and TC McCutchen Soybean nematodes. WS Hough presiding Standardized Nematicide Research Report. A Wrather Research on the Effects of Ectoparasitic Nematodes on Soybean Yields. EC McGawley Relationship of Numbers of the Soybean Cyst Nematode and Soybean Crop Response in North Carolina. D Schmitt Level of Resistance to Cyst Nematodes in Derived Lines of Soybeans. SC Anand and CR Shumway Reduction of Soybean Cyst Nematodes Females by Furadan. AJ Howard Effect of Trifluralin (Treflan) on Soybean Cyst Nematode. RD Riggs and LR Oliver Graduate student presentations. D Schmitt presiding Effect of Three Densities of Three Meloidogyne spp. on Soybean Growth in North Florida. CH Opperman The Effects of Pratylenchus brachyurus on Yield Components of Soybeans. FR Koenning Pod and Stem Infection by Phomopsis sp. during Soybean Seed Development and Maturation. JR Hicks, LJ Tomes, and DM TeKrony New developments. G Rich, presiding Label Amendments for Furadan in Soybeans. WS Hough Summary of Super Tin 41 for Performance on Soybeans for Foliar Disease Control. EF Koldenhoven Sudden Death Syndrome of Soybean: A Disease of Unknown Etiology. M Hirrel Soybean, seed, seedling and soil-borne diseases. J Shriver presiding Standardized Seed Treatment Research Report. MC McDaniel Factors Affecting Survival and Density of Macrophomina in Soil. T Wyllie Epidemiology and Control of Soybean Seed Diseases. D McGee Evaluation for Resistance to Seed Diseases. JP Ross Foliar, pod and stem diseases of soybeans. Mel Newman presiding Summary of Regional Foliar Fungicide Treatments. AY Chambers and MA Newman Disease Awareness Research Report and Data from Compromise Point System. R Smith The Effect of Triphenyltin Hydroxide on Disease and Insect Control of Soybeans. G Whitney Stem Canker in Tennessee: The Influence of Varieties, Foliar Sprays and Planting Dates. AY Chambers Stem Canker in Alabama: The Effect of Varieties and Foliar Sprays. P Backman, M Crawford, and W Gazaway Stem Canker in Mississippi: Varietal Response and Isolate Variation. B Moore Isolation and Identification Techniques for Diaporthe phaseolorum var. caulivora. MA Crawford and PA Backman Treasurer\u27s report. D Smit