Search Results - "Bergstrőm, Lars"

Dark matter candidates by Bergstrom, Lars

“…An overview is given of various dark matter candidates. Among the many suggestions given in the literature, axions, inert Higgs doublet, sterile neutrinos,…”
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Land use, geology and soil properties control nutrient concentrations in headwater streams by Djodjic, Faruk, Bieroza, Magdalena, Bergström, Lars

“…Nutrient losses from headwater catchments (<50 km2) cause eutrophication problems downstream. Catchment properties are strongly reflected in the levels of…”
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New limits on dark matter annihilation from Alpha Magnetic Spectrometer cosmic ray positron data by Bergström, Lars, Bringmann, Torsten, Cholis, Ilias, Hooper, Dan, Weniger, Christoph

“…The Alpha Magnetic Spectrometer experiment onboard the International Space Station has recently provided cosmic ray electron and positron data with…”
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Prospects of detecting gamma-ray emission from galaxy clusters: Cosmic rays and dark matter annihilations by Pinzke, Anders, Pfrommer, Christoph, Bergström, Lars

“…We study the possibility for detecting gamma-ray emission from galaxy clusters. We consider (1) leptophilic models of dark matter (DM) annihilation that…”
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Past, present, and future use of phosphorus in Chinese agriculture and its influence on phosphorus losses by Li, Haigang, Liu, Jian, Li, Guohua, Shen, Jianbo, Bergström, Lars, Zhang, Fusuo

“…Large inputs of phosphorus (P) in chemical fertilizers and feed supplements since 1978 have improved soil P status in arable land in China, but have also…”
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Dark matter evidence, particle physics candidates and detection methods by Bergstrom, L

“…The problem of the dark matter in the universe is reviewed. A short history of the subject is given, and several of the most obvious particle candidates for…”
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Dark matter interpretation of recent electron and positron data by Bergström, Lars, Edsjö, Joakim, Zaharijas, Gabrijela

“…We analyze the recently released Fermi-LAT data on the sum of electrons and positrons. Compared to a conventional, pre-Fermi, background model, a surprising…”
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Phosphorus Leaching from Two Soils with Catch Crops Exposed to Freeze–Thaw Cycles by Riddle, Matthew Unwin, Bergstrőm, Lars

“…Catch crops have been found to decrease leaching of nitrates into surface water and groundwater, but they also have the potential to increase P loadings to…”
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Phosphorus speciation in a long-term manure-amended soil profile – Evidence from wet chemical extraction, 31P-NMR and P K-edge XANES spectroscopy by Schmieder, Frank, Bergström, Lars, Riddle, Matthew, Gustafsson, Jon-Petter, Klysubun, Wantana, Zehetner, Franz, Condron, Leo, Kirchmann, Holger

“…Long-term application of manure can lead to an enrichment of phosphorus (P) in agricultural soils. To which extent this P leaches into drainage systems and…”
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Spray drift as influenced by meteorological and technical factors by Arvidsson, Tommy, Bergström, Lars, Kreuger, Jenny

“…BACKGROUND: The objective of this study was to investigate spray drift from a conventional field sprayer as influenced by meteorological and technical factors,…”
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Soils potentially vulnerable to phosphorus losses: speciation of inorganic and organic phosphorus and estimation of leaching losses by Djodjic, Faruk, Bergström, Lars, Schmieder, Frank, Sandström, Corine, Agback, Peter, Hu, Yongfeng

“…Eutrophication is an important threat to aquatic ecosystems world-wide, and reliable identification of areas vulnerable to phosphorus (P) losses from diffuse…”
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Magnetite-coated biochar as a soil phosphate filter: From laboratory to field lysimeter by Riddle, Matthew, Cederlund, Harald, Schmieder, Frank, Bergström, Lars

“…Agriculture is one of the largest anthropogenic contributors of phosphorus (P) to surface waters and reducing these P loads is a target set by many countries…”
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Implementing agricultural phosphorus science and management to combat eutrophication by Kleinman, Peter J. A., Sharpley, Andrew N., Withers, Paul J. A., Bergström, Lars, Johnson, Laura T., Doody, Donnacha G.

“…Experience with implementing agricultural phosphorus (P) strategies highlights successes and uncertainty over outcomes. We examine case studies from the USA,…”
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Significant gamma lines from inert Higgs dark matter by Gustafsson, Michael, Lundström, Erik, Bergström, Lars, Edsjö, Joakim

“…One way to unambiguously confirm the existence of particle dark matter and determine its mass would be to detect its annihilation into monochromatic gamma-rays…”
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Topsoil and Subsoil Properties Influence Phosphorus Leaching from Four Agricultural Soils by Andersson, Helena, Bergström, Lars, Djodjic, Faruk, Ulén, Barbro, Kirchmann, Holger

“…Eutrophication, a major problem in many fresh and brackish waters, is largely caused by nonpoint‐source pollution by P from agricultural soils. This lysimeter…”
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Dark matter and imaging air Cherenkov arrays by Bergström, Lars

“…► CTA will mean a significant increase of the potential for indirect dark matter detection. ► The annihilation rate for TeV WIMPs may be high, for a variety of…”
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Agricultural Water Quality in Cold Climates: Processes, Drivers, Management Options, and Research Needs by Liu, Jian, Baulch, Helen M., Macrae, Merrin L., Wilson, Henry F., Elliott, Jane A., Bergström, Lars, Glenn, Aaron J., Vadas, Peter A.

“…Cold agricultural regions are important sites of global food production. This has contributed to widespread water quality degradation influenced by processes…”
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Hydrologic Extremes and Legacy Sources Can Override Efforts to Mitigate Nutrient and Sediment Losses at the Catchment Scale by Bieroza, Magdalena, Bergström, Lars, Ulén, Barbro, Djodjic, Faruk, Tonderski, Karin, Heeb, Anuschka, Svensson, Jonas, Malgeryd, Johan

“…Combating eutrophication requires changes in land and water management in agricultural catchments and implementation of mitigation measures to reduce…”
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Phosphorus Leaching from an Organic and a Mineral Arable Soil in a Rainfall Simulation Study by Riddle, Matthew, Bergström, Lars, Schmieder, Frank, Kirchmann, Holger, Condron, Leo, Aronsson, Helena

“…Phosphorus derived from agricultural systems has been found to cause eutrophication of surface waters. To combat this, the specific location of soil profile P…”
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Laboratory and Lysimeter Studies of Glyphosate and Aminomethylphosphonic Acid in a Sand and a Clay Soil by Bergström, Lars, Börjesson, Elisabet, Stenström, John

“…Due to the increasing concern about the appearance of glyphosate [N-(phosphonomethyl)glycine] and its major metabolite aminomethylphosphonic acid (AMPA) in…”
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